fix(GODT-2582): fix hash for changed boundary.

same code as:
    * https://github.com/ProtonMail/gluon/pull/338
    * https://github.com/ProtonMail/gluon/pull/339

.gitlab-ci.yml

@@ -32,7 +32,7 @@ stages:
 
 .rules-branch-and-MR-always:
   rules:
-    - if: $CI_COMMIT_BRANCH ||  $CI_PIPELINE_SOURCE == "merge_request_event"
+    - if: $CI_COMMIT_BRANCH || $CI_PIPELINE_SOURCE == "merge_request_event"
       when: always
       allow_failure: false
     - when: never
@@ -54,16 +54,27 @@ stages:
       allow_failure: true
     - when: never
 
-.rules-branch-manual-MR-always-allow-failure:
+.rules-branch-manual-MR-and-devel-always:
   rules:
-    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+    - if: $CI_COMMIT_BRANCH == "devel" || $CI_PIPELINE_SOURCE == "merge_request_event"
       when: always
-      allow_failure: true
+      allow_failure: false
     - if: $CI_COMMIT_BRANCH
       when: manual
       allow_failure: true
     - when: never
 
+.after-script-code-coverage:
+  after_script:
+    - go get github.com/boumenot/gocover-cobertura
+    - go run github.com/boumenot/gocover-cobertura < /tmp/coverage.out > coverage.xml
+    - "go tool cover -func=/tmp/coverage.out | grep total:"
+  coverage: '/total:.*\(statements\).*\d+\.\d+%/'
+  artifacts:
+    reports:
+      coverage_report:
+        coverage_format: cobertura
+        path: coverage.xml
 
 # Stage: TEST
 
@@ -76,46 +87,62 @@ lint:
   tags:
     - medium
 
-test-linux:
+
+.test-base:
   stage: test
-  extends:
-    - .rules-branch-manual-MR-always
   script:
     - make test
+
+test-linux:
+  extends:
+    - .test-base
+    - .rules-branch-manual-MR-and-devel-always
+    - .after-script-code-coverage
   tags:
     - medium
 
 test-linux-race:
-  stage: test
   extends:
-    - .rules-branch-manual-MR-always-allow-failure
+    - test-linux
+    - .rules-branch-and-MR-manual
   script:
     - make test-race
-  tags:
-    - medium
 
 test-integration:
-  stage: test
   extends:
-    - .rules-branch-manual-MR-always
+    - test-linux
   script:
     - make test-integration
   tags:
     - large
 
 test-integration-race:
-  stage: test
   extends:
-    - .rules-branch-manual-MR-always-allow-failure
+    - test-integration
+    - .rules-branch-and-MR-manual
   script:
     - make test-integration-race
-  tags:
-    - large
 
-dependency-updates:
+
+.windows-base:
+  before_script:
+    - export GOROOT=/c/Go1.18
+    - export PATH=$GOROOT/bin:$PATH
+    - export GOARCH=amd64
+    - export GOPATH=~/go18
+    - export GO111MODULE=on
+    - export PATH=$GOPATH/bin:$PATH
+    - export MSYSTEM=
+  tags:
+    - windows-bridge
+
+test-windows:
+  extends:
+    - .rules-branch-manual-MR-always
+    - .windows-base
   stage: test
   script:
-    - make updates
+    - make test
 
 # Stage: BUILD
 
@@ -131,31 +158,20 @@ dependency-updates:
       when: manual
       allow_failure: true
     - when: never
-  before_script:
-    - mkdir -p .cache/bin
-    - export PATH=$(pwd)/.cache/bin:$PATH
-    - export GOPATH="$CI_PROJECT_DIR/.cache"
-    - export PATH=$PATH:$QT6DIR/bin
-    - $(git config --global -l | grep -o 'url.*gitlab.protontech.ch.*insteadof' | xargs -L 1 git config --global --unset &> /dev/null) || echo "nothing to remove"
-    - git config --global url.https://gitlab-ci-token:${CI_JOB_TOKEN}@${CI_SERVER_HOST}.insteadOf https://${CI_SERVER_HOST}
   script:
     - make build
     - git diff && git diff-index --quiet HEAD
     - make vault-editor
   artifacts:
-    # Note: The latest artifacts for refs are locked against deletion, and kept
-    # regardless of the expiry time. Introduced in GitLab 13.0 behind a
-    # disabled feature flag, and made the default behavior in GitLab 13.4.
     expire_in: 1 day
     when: always
+    name: "$CI_JOB_NAME-$CI_COMMIT_SHORT_SHA"
     paths:
       - bridge_*.tgz
       - vault-editor
-  tags:
-    - large
 
-build-linux:
-  extends: .build-base
+
+.linux-build-setup:
   image: gitlab.protontech.ch:4567/go/bridge-internal:qt6
   variables:
     VCPKG_DEFAULT_BINARY_CACHE: ${CI_PROJECT_DIR}/.cache
@@ -164,19 +180,29 @@ build-linux:
     paths:
       - .cache
     when: 'always'
-  artifacts:
-    name: "bridge-linux-$CI_COMMIT_SHORT_SHA"
+  before_script:
+    - mkdir -p .cache/bin
+    - export PATH=$(pwd)/.cache/bin:$PATH
+    - export GOPATH="$CI_PROJECT_DIR/.cache"
+    - export PATH=$PATH:$QT6DIR/bin
+    - $(git config --global -l | grep -o 'url.*gitlab.protontech.ch.*insteadof' | xargs -L 1 git config --global --unset &> /dev/null) || echo "nothing to remove"
+    - git config --global url.https://gitlab-ci-token:${CI_JOB_TOKEN}@${CI_SERVER_HOST}.insteadOf https://${CI_SERVER_HOST}
+  tags:
+    - large
+
+build-linux:
+  extends:
+    - .build-base
+    - .linux-build-setup
 
 build-linux-qa:
-  extends: build-linux
+  extends:
+    - build-linux
   variables:
     BUILD_TAGS: "build_qa"
-  artifacts:
-    name: "bridge-linux-qa-$CI_COMMIT_SHORT_SHA"
 
 
-.build-darwin-base:
-  extends: .build-base
+.darwin-build-setup:
   before_script:
     - export PATH=/usr/local/bin:$PATH
     - export PATH=/usr/local/opt/git/bin:$PATH
@@ -188,30 +214,22 @@ build-linux-qa:
     - export CGO_CPPFLAGS='-Wno-error -Wno-nullability-completeness -Wno-expansion-to-defined -Wno-builtin-requires-header'
     - $(git config --global -l | grep -o 'url.*gitlab.protontech.ch.*insteadof' | xargs -L 1 git config --global --unset &> /dev/null) || echo "nothing to remove"
     - git config --global url.https://gitlab-ci-token:${CI_JOB_TOKEN}@${CI_SERVER_HOST}.insteadOf https://${CI_SERVER_HOST}
-  script:
-    - go version
-    - make build-nogui
-    - git diff && git diff-index --quiet HEAD
-    - make vault-editor
   cache: {}
   tags:
     - macOS
 
 build-darwin:
-  extends: .build-darwin-base
-  artifacts:
-    name: "bridge-darwin-$CI_COMMIT_SHORT_SHA"
+  extends:
+    - .build-base
+    - .darwin-build-setup
 
 build-darwin-qa:
-  extends: .build-darwin-base
+  extends:
+    - build-darwin
   variables:
     BUILD_TAGS: "build_qa"
-  artifacts:
-    name: "bridge-darwin-qa-$CI_COMMIT_SHORT_SHA"
 
-
-.build-windows-base:
-  extends: .build-base
+.windows-build-setup:
   before_script:
     - export GOROOT=/c/Go1.18/
     - export PATH=$GOROOT/bin:$PATH
@@ -225,23 +243,19 @@ build-darwin-qa:
     - export PATH="/c/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/bin:$PATH"
     - $(git config --global -l | grep -o 'url.*gitlab.protontech.ch.*insteadof' | xargs -L 1 git config --global --unset &> /dev/null) || echo "nothing to remove"
     - git config --global url.https://gitlab-ci-token:${CI_JOB_TOKEN}@${CI_SERVER_HOST}.insteadOf https://${CI_SERVER_HOST}
-  script:
-    - make build-nogui
-    - git diff && git diff-index --quiet HEAD
-    - make vault-editor
+  cache: {}
   tags:
     - windows-bridge
 
 build-windows:
-  extends: .build-windows-base
-  artifacts:
-    name: "bridge-windows-$CI_COMMIT_SHORT_SHA"
+  extends:
+    - .build-base
+    - .windows-build-setup
 
 build-windows-qa:
-  extends: .build-windows-base
+  extends:
+    - build-windows
   variables:
     BUILD_TAGS: "build_qa"
-  artifacts:
-    name: "bridge-windows-qa-$CI_COMMIT_SHORT_SHA"
 
 # TODO: PUT BACK ALL THE JOBS! JUST DID THIS FOR NOW TO GET CI WORKING AGAIN...

.golangci.yml

@@ -23,7 +23,6 @@ issues:
     - path: _test\.go
       linters:
         - dupl
-        - funlen
         - gochecknoglobals
         - gochecknoinits
         - gosec
@@ -32,7 +31,6 @@ issues:
     - path: test
       linters:
         - dupl
-        - funlen
         - gochecknoglobals
         - gochecknoinits
         - gosec
@@ -64,7 +62,6 @@ linters:
     - depguard          # Go linter that checks if package imports are in a list of acceptable packages [fast: true, auto-fix: false]
     - dogsled           # Checks assignments with too many blank identifiers (e.g. x, _, _, _, := f()) [fast: true, auto-fix: false]
     - dupl              # Tool for code clone detection [fast: true, auto-fix: false]
-    - funlen            # Tool for detection of long functions [fast: true, auto-fix: false]
     - gochecknoglobals  # Checks that no globals are present in Go code [fast: true, auto-fix: false]
     - gochecknoinits    # Checks that no init functions are present in Go code [fast: true, auto-fix: false]
     - goconst           # Finds repeated strings that could be replaced by a constant [fast: true, auto-fix: false]

BUILDS.md

@@ -5,13 +5,13 @@
     - the go-rfc5322 module cannot currently be compiled for 32-bit OSes
 * Go 1.18
 * Bash with basic build utils: make, gcc, sed, find, grep, ...
-  - For Windows it is recommended to use MinGW 64bit shell from [MSYS2](https://www.msys2.org/)
+  - For Windows, it is recommended to use MinGW 64bit shell from [MSYS2](https://www.msys2.org/)
 * GCC (linux), msvc (windows) or Xcode (macOS)
 * Windres (windows)
 * libglvnd and libsecret development files (linux)
 
 To enable the sending of crash reports using Sentry please set the
-`main.DSNSentry` value with the client key of your sentry project before build.
+`DSN_SENTRY` environment variable with the client key of your sentry project before build.
 Otherwise, the sending of crash reports will be disabled.
 
 ## Build
@@ -44,9 +44,10 @@ make build
 make build-nogui
 ```
 
-* Bridge without GUI will start by default without any interface (i.e., there is no way to add or remove client, get bridge password, etc)
-* Bridge always has the option (whether built with Qt or without) to use a CLI interface by starting it with the argument `-c`
-* NOTE: You still need to setup supported keychain on your system
+* To launch Bridge without GUI, you can invoke the `bridge` executable with one the following command-line switches:
+  * `--noninteractive` or `-n` to start Bridge without any interface (i.e., there is no way to add or remove client, get bridge password, etc.)
+  * `--cli` or `-c` to start Bridge with an interactive terminal interface.
+* NOTE: You still need to set up a supported keychain on your system.
 
 ## Launchers
 Launchers are only included in official distributions and provide the public

COPYING_NOTES.md

@@ -26,7 +26,6 @@ Proton Mail Bridge includes the following 3rd party software:
 * [gluon](https://github.com/ProtonMail/gluon) available under [license](https://github.com/ProtonMail/gluon/blob/master/LICENSE) 
 * [go-autostart](https://github.com/ProtonMail/go-autostart) available under [license](https://github.com/ProtonMail/go-autostart/blob/master/LICENSE) 
 * [go-proton-api](https://github.com/ProtonMail/go-proton-api) available under [license](https://github.com/ProtonMail/go-proton-api/blob/master/LICENSE) 
-* [go-rfc5322](https://github.com/ProtonMail/go-rfc5322) available under [license](https://github.com/ProtonMail/go-rfc5322/blob/master/LICENSE) 
 * [gopenpgp](https://github.com/ProtonMail/gopenpgp/v2) available under [license](https://github.com/ProtonMail/gopenpgp/v2/blob/master/LICENSE) 
 * [goquery](https://github.com/PuerkitoBio/goquery) available under [license](https://github.com/PuerkitoBio/goquery/blob/master/LICENSE) 
 * [ishell](https://github.com/abiosoft/ishell) available under [license](https://github.com/abiosoft/ishell/blob/master/LICENSE) 
@@ -53,6 +52,7 @@ Proton Mail Bridge includes the following 3rd party software:
 * [html2text](https://github.com/jaytaylor/html2text) available under [license](https://github.com/jaytaylor/html2text/blob/master/LICENSE) 
 * [go-keychain](https://github.com/keybase/go-keychain) available under [license](https://github.com/keybase/go-keychain/blob/master/LICENSE) 
 * [dns](https://github.com/miekg/dns) available under [license](https://github.com/miekg/dns/blob/master/LICENSE) 
+* [memory](https://github.com/pbnjay/memory) available under [license](https://github.com/pbnjay/memory/blob/master/LICENSE) 
 * [errors](https://github.com/pkg/errors) available under [license](https://github.com/pkg/errors/blob/master/LICENSE) 
 * [profile](https://github.com/pkg/profile) available under [license](https://github.com/pkg/profile/blob/master/LICENSE) 
 * [logrus](https://github.com/sirupsen/logrus) available under [license](https://github.com/sirupsen/logrus/blob/master/LICENSE) 
@@ -76,8 +76,9 @@ Proton Mail Bridge includes the following 3rd party software:
 * [readline](https://github.com/abiosoft/readline) available under [license](https://github.com/abiosoft/readline/blob/master/LICENSE) 
 * [levenshtein](https://github.com/agext/levenshtein) available under [license](https://github.com/agext/levenshtein/blob/master/LICENSE) 
 * [cascadia](https://github.com/andybalholm/cascadia) available under [license](https://github.com/andybalholm/cascadia/blob/master/LICENSE) 
-* [antlr](https://github.com/antlr/antlr4/runtime/Go/antlr) available under [license](https://github.com/antlr/antlr4/runtime/Go/antlr/blob/master/LICENSE) 
 * [go-textseg](https://github.com/apparentlymart/go-textseg/v13) available under [license](https://github.com/apparentlymart/go-textseg/v13/blob/master/LICENSE) 
+* [sonic](https://github.com/bytedance/sonic) available under [license](https://github.com/bytedance/sonic/blob/master/LICENSE) 
+* [base64x](https://github.com/chenzhuoyu/base64x) available under [license](https://github.com/chenzhuoyu/base64x/blob/master/LICENSE) 
 * [test](https://github.com/chzyer/test) available under [license](https://github.com/chzyer/test/blob/master/LICENSE) 
 * [circl](https://github.com/cloudflare/circl) available under [license](https://github.com/cloudflare/circl/blob/master/LICENSE) 
 * [go-md2man](https://github.com/cpuguy83/go-md2man/v2) available under [license](https://github.com/cpuguy83/go-md2man/v2/blob/master/LICENSE) 
@@ -88,6 +89,7 @@ Proton Mail Bridge includes the following 3rd party software:
 * [go-windows](https://github.com/elastic/go-windows) available under [license](https://github.com/elastic/go-windows/blob/master/LICENSE) 
 * [go-textwrapper](https://github.com/emersion/go-textwrapper) available under [license](https://github.com/emersion/go-textwrapper/blob/master/LICENSE) 
 * [go-vcard](https://github.com/emersion/go-vcard) available under [license](https://github.com/emersion/go-vcard/blob/master/LICENSE) 
+* [fgprof](https://github.com/felixge/fgprof) available under [license](https://github.com/felixge/fgprof/blob/master/LICENSE) 
 * [go-shlex](https://github.com/flynn-archive/go-shlex) available under [license](https://github.com/flynn-archive/go-shlex/blob/master/LICENSE) 
 * [sse](https://github.com/gin-contrib/sse) available under [license](https://github.com/gin-contrib/sse/blob/master/LICENSE) 
 * [gin](https://github.com/gin-gonic/gin) available under [license](https://github.com/gin-gonic/gin/blob/master/LICENSE) 
@@ -97,6 +99,7 @@ Proton Mail Bridge includes the following 3rd party software:
 * [validator](https://github.com/go-playground/validator/v10) available under [license](https://github.com/go-playground/validator/v10/blob/master/LICENSE) 
 * [uuid](https://github.com/gofrs/uuid) available under [license](https://github.com/gofrs/uuid/blob/master/LICENSE) 
 * [protobuf](https://github.com/golang/protobuf) available under [license](https://github.com/golang/protobuf/blob/master/LICENSE) 
+* [pprof](https://github.com/google/pprof) available under [license](https://github.com/google/pprof/blob/master/LICENSE) 
 * [errwrap](https://github.com/hashicorp/errwrap) available under [license](https://github.com/hashicorp/errwrap/blob/master/LICENSE) 
 * [go-immutable-radix](https://github.com/hashicorp/go-immutable-radix) available under [license](https://github.com/hashicorp/go-immutable-radix/blob/master/LICENSE) 
 * [go-memdb](https://github.com/hashicorp/go-memdb) available under [license](https://github.com/hashicorp/go-memdb/blob/master/LICENSE) 
@@ -104,6 +107,7 @@ Proton Mail Bridge includes the following 3rd party software:
 * [hcl](https://github.com/hashicorp/hcl/v2) available under [license](https://github.com/hashicorp/hcl/v2/blob/master/LICENSE) 
 * [multierror](https://github.com/joeshaw/multierror) available under [license](https://github.com/joeshaw/multierror/blob/master/LICENSE) 
 * [go](https://github.com/json-iterator/go) available under [license](https://github.com/json-iterator/go/blob/master/LICENSE) 
+* [cpuid](https://github.com/klauspost/cpuid/v2) available under [license](https://github.com/klauspost/cpuid/v2/blob/master/LICENSE) 
 * [go-urn](https://github.com/leodido/go-urn) available under [license](https://github.com/leodido/go-urn/blob/master/LICENSE) 
 * [go-colorable](https://github.com/mattn/go-colorable) available under [license](https://github.com/mattn/go-colorable/blob/master/LICENSE) 
 * [go-isatty](https://github.com/mattn/go-isatty) available under [license](https://github.com/mattn/go-isatty/blob/master/LICENSE) 
@@ -114,22 +118,24 @@ Proton Mail Bridge includes the following 3rd party software:
 * [reflect2](https://github.com/modern-go/reflect2) available under [license](https://github.com/modern-go/reflect2/blob/master/LICENSE) 
 * [tablewriter](https://github.com/olekukonko/tablewriter) available under [license](https://github.com/olekukonko/tablewriter/blob/master/LICENSE) 
 * [go-toml](https://github.com/pelletier/go-toml/v2) available under [license](https://github.com/pelletier/go-toml/v2/blob/master/LICENSE) 
+* [lz4](https://github.com/pierrec/lz4/v4) available under [license](https://github.com/pierrec/lz4/v4/blob/master/LICENSE) 
 * [go-difflib](https://github.com/pmezard/go-difflib) available under [license](https://github.com/pmezard/go-difflib/blob/master/LICENSE) 
 * [procfs](https://github.com/prometheus/procfs) available under [license](https://github.com/prometheus/procfs/blob/master/LICENSE) 
 * [uniseg](https://github.com/rivo/uniseg) available under [license](https://github.com/rivo/uniseg/blob/master/LICENSE) 
 * [blackfriday](https://github.com/russross/blackfriday/v2) available under [license](https://github.com/russross/blackfriday/v2/blob/master/LICENSE) 
 * [pflag](https://github.com/spf13/pflag) available under [license](https://github.com/spf13/pflag/blob/master/LICENSE) 
 * [bom](https://github.com/ssor/bom) available under [license](https://github.com/ssor/bom/blob/master/LICENSE) 
+* [golang-asm](https://github.com/twitchyliquid64/golang-asm) available under [license](https://github.com/twitchyliquid64/golang-asm/blob/master/LICENSE) 
 * [codec](https://github.com/ugorji/go/codec) available under [license](https://github.com/ugorji/go/codec/blob/master/LICENSE) 
 * [tagparser](https://github.com/vmihailenco/tagparser/v2) available under [license](https://github.com/vmihailenco/tagparser/v2/blob/master/LICENSE) 
 * [smetrics](https://github.com/xrash/smetrics) available under [license](https://github.com/xrash/smetrics/blob/master/LICENSE) 
 * [go-cty](https://github.com/zclconf/go-cty) available under [license](https://github.com/zclconf/go-cty/blob/master/LICENSE) 
+* [arch](https://golang.org/x/arch) available under [license](https://cs.opensource.google/go/x/arch/+/master:LICENSE) 
 * [crypto](https://golang.org/x/crypto) available under [license](https://cs.opensource.google/go/x/crypto/+/master:LICENSE) 
 * [mod](https://golang.org/x/mod) available under [license](https://cs.opensource.google/go/x/mod/+/master:LICENSE) 
 * [sync](https://golang.org/x/sync) available under [license](https://cs.opensource.google/go/x/sync/+/master:LICENSE) 
 * [tools](https://golang.org/x/tools) available under [license](https://cs.opensource.google/go/x/tools/+/master:LICENSE) 
 * [genproto](https://google.golang.org/genproto)
-gopkg.in/yaml.v2
 gopkg.in/yaml.v3
 * [docker-credential-helpers](https://github.com/ProtonMail/docker-credential-helpers) available under [license](https://github.com/ProtonMail/docker-credential-helpers/blob/master/LICENSE) 
 * [go-message](https://github.com/ProtonMail/go-message) available under [license](https://github.com/ProtonMail/go-message/blob/master/LICENSE) 

Changelog.md

@@ -1,8 +1,273 @@
-# Proton Mail Bridge and Import-Export app Changelog
+# Proton Mail Bridge Changelog
 
 Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
 
+## [Bridge 3.1.2] Quebec
+
+### Changed
+* GODT-2582 Dedup recovered messages folder.
+
+
+## [Bridge 3.1.1] Quebec
+
+### Fixed
+* GODT-2500: Fix handler passing.
+
+
+## [Bridge 3.1.0] Quebec
+
+### Changed
+* GODT-2523: Use software QML rendering backend by default on Windows.
+* GODT-2500: Reorganise async methods.
+* GODT-2500: Add panic handlers everywhere.
+* GODT-2511: Add bridge-gui switches to permanently select the QML rendering backend.
+* GODT-2509: Migrate TLS cert from v1/v2 location during upgrade to v3.
+* GODT-2487: Add windows test job and worker.
+* Update GPA to include detailed error messages.
+* GODT-2479: Ensure messages always have a text body part.
+* GODT-2482: More attachment to relevant exceptions.
+* GODT-2224: Refactor bridge sync to use less memory.
+* GODT-2448: Supported Answered flag.
+* GODT-2382: Added bridge-gui settings file with 'UseSoftwareRenderer' value.
+* GODT-2411: Allow qmake executable to be named qmake6.
+* GODT-2273: Menu with "Close window" and "Quit Bridge" button in main window.
+* GODT-2261: Sync progress in GUI.
+* GODT-2385: Gluon cache fallback.
+* GODT-2366: Handle failed message updates as creates.
+* GODT-2201: Bump Gluon to use pure Go IMAP parser.
+* GODT-2374: Import TLS certs via shell.
+* GODT-2361: Bump GPA to use simple encrypter.
+* GODT-1264: Constraint on Scheduled mailbox in connector + Integration tests.
+* GODT-1264: Creation and visibility of the 'Scheduled' system label.
+* GODT-2283: Limit max import size to 30MB (bump GPA to v0.4.0).
+* GODT-2352: Only copy resource file when needed.
+* GODT-2352: Use go-build-finalize macro to build vault-editor for both mac arch.
+* GODT-2278: Properly override server_name for go.
+* GODT-2255: Randomize the focus service port.
+* GODT-2144: Handle IMAP/SMTP server errors via event stream.
+* GODT-2144: Delay IMAP/SMTP server start until all users are loaded.
+* GODT-2295: Notifications for IMAP login when signed out.
+* GODT-2278: Improve sentry logs.
+* GODT-2289: UIDValidity as Timestamp.
+
+### Fixed
+* GODT-2505: Show notification only for cases when user needs to do actions.
+* GODT-2516: Log error when the vault key cannot be created/loaded from the keychain.
+* GODT-2526: Fix high memory usage with fetch/search.
+* GODT-2514: Apply Retry-After to 503.
+* GODT-2524: Preserve old vault values.
+* GODT-2508: Handle Address Updated for none-existing address.
+* GODT-2504: Fix missing attachments in imported message.
+* GODT-2513: Scanner Crash in Gluon.
+* GODT-2512: Catch unhandled API errors.
+* GODT-2507: Memory consumption bug.
+* GODT-2497: Do not report EOF and network errors.
+* GODT-2481: Fix DBUS Secert Service.
+* GODT-2455: Upper limit for number of merged events.
+* GODT-2480: Do not override X-Original-Date with invalid Date.
+* GODT-2473: Fix handling of complex mime types.
+* GODT-2469: Fix sentry revision hash for cmake on windows.
+* GODT-2424: Sync Builder Message Split.
+* GODT-2419: Use connector.ErrOperationNotAllowed.
+* GODT-2418: Ensure child folders are updated when parent is.
+* GODT-1945: Handle disabled addresses correctly.
+* GODT-2390: Add reports for uncaught json and net.opErr.
+* GODT-2393: Improved handling of unrecoverable error.
+* GODT-2394: Bump Gluon for golang.org/x/text DoS risk.
+* GODT-2387: Ensure vault can be unlocked after factory reset.
+* GODT-2389: Close bridge on exception and add max termination wait time.
+* GODT-2201: Add missing rfc5322.CharsetReader initialization.
+* GODT-1804: Preserve MIME parameters when uploading attachments.
+* GODT-2312: Used space is properly updated.
+* GODT-2319: Seed the math/rand RNG on app startup.
+* GODT-2272: Use shorter filename for gRPC file socket.
+* GODT-2318: Remove gluon DB if label sync was incomplete.
+* GODT-2326: Only run sync after addIMAPUser().
+* GODT-2323: Fix Expunge not issued for move.
+* GODT-2224: Properly handle context cancellation during sync.
+* GODT-2328: Ignore labels that aren't part of user label set.
+* GODT-2326: Fix potential Win32 API deadlock.
+* GODT-1804: Only promote content headers if non-empty.
+* GODT-2327: Remove unnecessary sync when changing address mode.
+* GODT-2343: Only poll after send if sync is complete.
+* GODT-2336: Recover from changed address order while bridge is down.
+* GODT-2347: Prevent updates from being dropped if goroutine doesn't start fast.
+* GODT-2351: Bump GPA to properly handle net.OpError and add tests.
+* GODT-2351: Bump GPA to automatically retry on net.OpError.
+* GODT-2365: Use predictable remote ID for placeholder mailboxes.
+* GODT-2381: Unset draft flag on sent messages.
+* GODT-2380: Only set external ID in header if non-empty.
+
+
+## [Bridge 3.0.21] Perth Narrows
+
+### Added
+* GODT-2509: Migrate TLS cert from v1/v2 location during upgrade to v3.
+
+### Changed
+* GODT-2516: log error when the vault key cannot be created/loaded from the keychain.
+
+### Fixed
+* GODT-2501: Remove additional .desktop file.
+* GODT-2513: Crash in scanner.
+* GODT-2481: Fix DBUS Secert Service.
+* GODT-2512: Catch unhandled API errors.
+* GODT-2469: Fix sentry revision hash for cmake on windows.
+
+
+## [Bridge 3.0.20] Perth Narrows
+
+### Added
+* GODT-2442: Allow user to re-sync DB without logout.
+
+### Changed
+* GODT-2419: Reduce sentry reports.
+* GODT-2458: Wait for both bridge and bridge-gui to be ended before restarting on crash.
+* GODT-2457: Include address if GetPublickKeys() error message.
+* GODT-2446: Attach logs to sentry reports for relevant bridge-gui exceptions.
+* GODT-2425: Out of sync messages and read status.
+* GODT-2435: Group report exception by message if exception message looks corrupted.
+* GODT-2356: Unify sentry release description and add more context to it.
+* GODT-2357: Hide DSN_SENTRY and use single setting point for DSN_SENTRY.
+* GODT-2444: Bad event info.
+* GODT-2447: Don't assume timestamp exists in log filename.
+* GODT-2333: Do not allow modifications to All Mail label.
+* GODT-2429: Do not report context cancel to sentry.
+
+### Fixed
+* GODT-2467: elide long email adresses in 'bad event' QML notification dialog.
+* GODT-2449: fix bug in Bridge-GUI's Exception::what().
+* GODT-2427: Parsing header issues.
+* GODT-2426: Fix crash on user delete.
+* GODT-2417: Do not request gluon recovered message from API.
+
+
+## [Bridge 3.0.19] Perth Narrows
+
+### Fixed
+* GODT-2364: Wait and retry once if the gRPC service config file exists but cannot be opened.
+* GODT-2364: Added optional details to C++ exceptions.
+* GODT-2413: Use qEnvironmentVariable() instead of qgetenv().
+* GODT-2412: Don't treat context cancellation as BadEvent.
+* GODT-2404: Handle unexpected EOF.
+* GODT-2400: Allow state updates to be applied if command fails.
+* GODT-2399: Fix immediate message deletion during updates.
+* GODT-2390: Missing changes from pervious commit.
+* GODT-2390: Add reports for uncaught json and net.opErr.
+* GODT-2414: Multiple deletion bug in WriteControlledStore.
+
+
+## [Bridge 3.0.18] Perth Narrows
+
+### Fixed
+* GODT-2392: Create message if gluon updateMessage returns `no such message`.
+* GODT-2391: Create draft if missing during message update on gluon side.
+
+## [Bridge 3.0.16/17] Perth Narrows
+
+### Fixed
+* GODT-2371: Continue, not return, when handling draft.
+
+## [Bridge 3.0.15] Perth Narrows
+
+### Changed
+* GODT-2355: Improve wording and actions on bad event.
+
+### Fixed
+* GODT-2354: Report failed load users.
+* GODT-2353: Show popup only after 3.0.16.
+* GODT-2351: Bump GPA to better handle net.OpError.
+
+
+## [Bridge 3.0.14] Perth Narrows
+
+### Fixed
+* GODT-2323: Fix Expunge not issued for move.
+* GODT-2341: Handle URL error.
+* GODT-2340: Improve logging.
+* GODT-2278: Improve sentry logs.
+* GODT-2327: Sync issues when migrating DB.
+* GODT-2318: Remove gluon DB if label sync was incomplete.
+* GODT-1804: Only promote content headers if non-empty.
+* GODT-2343: Only poll after send if sync is complete.
+* GODT-2336: Recover from changed address order while bridge is down.
+
+
+
+## [Bridge 3.0.13] Perth Narrows
+
+### Fixed
+GODT-2328: Ignore labels that aren't part of user label set.
+GODT-2326: Sync issue on missing fresh DB file.
+GODT-2319: Seed the math/rand RNG on app startup.
+GODT-1804: Preserve MIME parameters when uploading attachments.
+
+
+## [Bridge 3.0.12] Perth Narrows
+
+### Added
+* GODT-2210: v3.0 splash screen.
+* GODT-1770: handle UserBadEvent in CLI and gRPC.
+
+### Changed
+* GODT-2311: Fix missing headers in re-downloaded Gluon messages.
+* GODT-1453: clicking 'Sign in' from status window now selects the right account.
+* GODT-2297: More significantly improve GPA's paging algorithm.
+* GODT-2145: Fix button spacing w/ Qt 6.4.
+* GODT-2223: Improve event handling.
+* GODT-2305: Detect missing gluon DB.
+* GODT-2291: Change gluon store default location from Cache to Data.
+* Other: Disable dialer test until badssl cert is bumbed.
+* GODT-2292: Updated BUILDS.md doc.
+* GODT-2258: suggest email as login when signing in via status window.
+* Other: Report corrupt and/or insecure vaults to sentry.
+* Other: Better user load logs.
+* GODT-2253: Restart Launcher from the gui when GUI crashes.
+* Other(test): Make All Mail copy test more robust.
+* Other(CI): Make race checks manual.
+* Other: Remove old cert/key file location handling.
+* GODT-2271: Update README with new system files path.
+
+### Fixed
+* GODT-2210: Fix splash screen always showing on CentOS and Ubuntu.
+* GODT-2296: Log error rather than fail if cannot get parent ID.
+* GODT-2266: Pause event stream while sending.
+* GODT-2266: Add test for sent message flags.
+* Other(test): Fix some more integration test placeholders.
+* GODT-2177: Use correct attachment disposition when content ID is set.
+* GODT-1556: If no references, use the in-reply-to header as ParentID.
+* Other: make GUI Tester more resilient to Bridge abrupt termination.
+* GODT-2275: fixed location of bridge-gui log files.
+* Other: Ensure SMTP debug dump works on windows.
+* Other: Fix MaxLogs off-by-one limit and bump limit to 10.
+* Other: fix path of temp folder in README.
+* Other(debug): Dump raw SMTP input to user's home dir.
+
+
+## [Bridge 3.0.11] Perth Narrows
+
+### Changed
+* GODT-2252: Recover from deleted cached messages.
+* GODT-2258: change login label and suggest email instead of username.
+* Other: Don't clean settings path on teardown.
+* Other: Bump GPA to v0.3.0.
+* Other: added user's primary email address to the vault.
+* GODT-2251: gluon store and DB separated.
+* GODT-2093: use the primary email address in the account view and status view.
+* GODT-2202: Report update errors from Gluon.
+* GODT-2229: Own the full path for gluon and do not change Database path.
+* GODT-1797: copyright notice shows a date range with the build year.
+
+### Fixed
+* GODT-2223: Handle bad events by logging user out.
+* GODT-2165: Reduce UTF8 parsing errors from TLS header input.
+* Others: chores fix a QML warning when no account is present* and a few typos in QML.
+* Other(test): Fix integration test steps.
+* GODT-2226: Fix moving drafts to trash.
+* GODT-2246: do not report API error 422 when using an invalid email address.
+
+
 ## [Bridge 3.0.10] Perth Narrows
 
 ### Changed

Makefile

@@ -11,7 +11,7 @@ ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
 .PHONY: build build-gui build-nogui build-launcher versioner hasher
 
 # Keep version hardcoded so app build works also without Git repository.
-BRIDGE_APP_VERSION?=3.0.10+git
+BRIDGE_APP_VERSION?=3.1.2+git
 APP_VERSION:=${BRIDGE_APP_VERSION}
 APP_FULL_NAME:=Proton Mail Bridge
 APP_VENDOR:=Proton AG
@@ -23,16 +23,21 @@ REVISION:=$(shell git rev-parse --short=10 HEAD)
 BUILD_TIME:=$(shell date +%FT%T%z)
 MACOS_MIN_VERSION_ARM64=11.0
 MACOS_MIN_VERSION_AMD64=10.15
+BUILD_ENV?=dev
 
 BUILD_FLAGS:=-tags='${BUILD_TAGS}'
 BUILD_FLAGS_LAUNCHER:=${BUILD_FLAGS}
-BUILD_FLAGS_GUI:=-tags='${BUILD_TAGS} build_qt'
 GO_LDFLAGS:=$(addprefix -X github.com/ProtonMail/proton-bridge/v3/internal/constants., Version=${APP_VERSION} Revision=${REVISION} BuildTime=${BUILD_TIME})
 GO_LDFLAGS+=-X "github.com/ProtonMail/proton-bridge/v3/internal/constants.FullAppName=${APP_FULL_NAME}"
 
-ifneq "${BUILD_LDFLAGS}" ""
-	GO_LDFLAGS+=${BUILD_LDFLAGS}
+ifneq "${DSN_SENTRY}" ""
+	GO_LDFLAGS+=-X github.com/ProtonMail/proton-bridge/v3/internal/constants.DSNSentry=${DSN_SENTRY}
 endif
+
+ifneq "${BUILD_ENV}" ""
+	GO_LDFLAGS+=-X github.com/ProtonMail/proton-bridge/v3/internal/constants.BuildEnv=${BUILD_ENV}
+endif
+
 GO_LDFLAGS_LAUNCHER:=${GO_LDFLAGS}
 ifeq "${TARGET_OS}" "windows"
 	#GO_LDFLAGS+=-H=windowsgui # Disabled so we can inspect trace logs from the bridge for debugging.
@@ -40,7 +45,6 @@ ifeq "${TARGET_OS}" "windows"
 endif
 
 BUILD_FLAGS+=-ldflags '${GO_LDFLAGS}'
-BUILD_FLAGS_GUI+=-ldflags "${GO_LDFLAGS}"
 BUILD_FLAGS_LAUNCHER+=-ldflags '${GO_LDFLAGS_LAUNCHER}'
 DEPLOY_DIR:=cmd/${TARGET_CMD}/deploy
 DIRNAME:=$(shell basename ${CURDIR})
@@ -96,9 +100,9 @@ endif
 
 ifeq "${GOOS}" "windows"
 	go-build-finalize= \
-		powershell Copy-Item ${ROOT_DIR}/${RESOURCE_FILE} ${4}  && \
-		$(call go-build,$(1),$(2),$(3)) && \
-		powershell Remove-Item ${4} -Force
+		$(if $(4),powershell Copy-Item ${ROOT_DIR}/${RESOURCE_FILE} ${4}  &&,) \
+		$(call go-build,$(1),$(2),$(3)) \
+		$(if $(4), && powershell Remove-Item ${4} -Force,)
 endif
 
 ${EXE_NAME}: gofiles  ${RESOURCE_FILE}
@@ -112,7 +116,7 @@ versioner:
 	go build ${BUILD_FLAGS} -o versioner utils/versioner/main.go
 
 vault-editor:
-	go build -tags debug -o vault-editor utils/vault-editor/main.go
+	$(call go-build-finalize,"-tags=debug","vault-editor","./utils/vault-editor/main.go")
 
 hasher:
 	go build -o hasher utils/hasher/main.go
@@ -154,8 +158,10 @@ ${EXE_TARGET}: check-build-essentials ${EXE_NAME}
 		BRIDGE_VENDOR="${APP_VENDOR}" \
 		BRIDGE_APP_VERSION=${APP_VERSION} \
 		BRIDGE_REVISION=${REVISION} \
-		BRIDGE_BUILD_TIME=${BUILD_TIME} \
+		BRIDGE_DSN_SENTRY=${DSN_SENTRY} \
+ 		BRIDGE_BUILD_TIME=${BUILD_TIME} \
 		BRIDGE_GUI_BUILD_CONFIG=Release \
+		BRIDGE_BUILD_ENV=${BUILD_ENV} \
 		BRIDGE_INSTALL_PATH=${ROOT_DIR}/${DEPLOY_DIR}/${GOOS} \
 		./build.sh install
 	mv "${ROOT_DIR}/${BRIDGE_EXE}" "$(ROOT_DIR)/${EXE_TARGET}"
@@ -222,13 +228,13 @@ change-copyright-year:
 	./utils/missing_license.sh change-year
 
 test: gofiles
-	go test -v -timeout=5m -p=1 -count=1 -coverprofile=/tmp/coverage.out -run=${TESTRUN} ./internal/... ./pkg/...
+	go test -v -timeout=10m -p=1 -count=1 -coverprofile=/tmp/coverage.out -run=${TESTRUN} ./internal/... ./pkg/...
 
 test-race: gofiles
 	go test -v -timeout=30m -p=1 -count=1 -race -failfast -run=${TESTRUN} ./internal/... ./pkg/...
 
 test-integration: gofiles
-	go test -v -timeout=10m -p=1 -count=1 github.com/ProtonMail/proton-bridge/v3/tests
+	go test -v -timeout=20m -p=1 -count=1 github.com/ProtonMail/proton-bridge/v3/tests
 
 test-integration-debug: gofiles
 	dlv test github.com/ProtonMail/proton-bridge/v3/tests -- -test.v -test.timeout=10m -test.parallel=1 -test.count=1
@@ -247,7 +253,7 @@ coverage: test
 mocks:
 	mockgen --package mocks github.com/ProtonMail/proton-bridge/v3/internal/bridge TLSReporter,ProxyController,Autostarter > tmp
 	mv tmp internal/bridge/mocks/mocks.go
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/v3/internal/async PanicHandler > internal/bridge/mocks/async_mocks.go
+	mockgen --package mocks github.com/ProtonMail/gluon/async PanicHandler > internal/bridge/mocks/async_mocks.go
 	mockgen --package mocks github.com/ProtonMail/gluon/reporter Reporter > internal/bridge/mocks/gluon_mocks.go
 	mockgen --package mocks github.com/ProtonMail/proton-bridge/v3/internal/updater Downloader,Installer > internal/updater/mocks/mocks.go
 
@@ -294,7 +300,7 @@ gofiles: ./internal/bridge/credits.go
 	cd ./utils/ && ./credits.sh bridge
 
 ## Run and debug
-.PHONY: run run-qt run-qt-cli run-nogui run-cli run-noninteractive run-debug run-qml-preview clean-vendor clean-frontend-qt clean-frontend-qt-common clean
+.PHONY: run run-qt run-qt-cli run-nogui run-cli run-noninteractive run-debug run-gui-tester clean-vendor clean-frontend-qt clean-frontend-qt-common clean
 
 LOG?=debug
 LOG_IMAP?=client # client/server/all, or empty to turn it off
@@ -319,14 +325,32 @@ run-nogui: build-nogui clean-vendor gofiles
 	PROTONMAIL_ENV=dev ./${LAUNCHER_EXE} ${RUN_FLAGS} -c
 
 run-debug:
-	dlv debug ./cmd/Desktop-Bridge/main.go -- -l=debug
+	dlv debug \
+		--build-flags "-ldflags '-X github.com/ProtonMail/proton-bridge/v3/internal/constants.Version=3.1.0+git'" \
+		./cmd/Desktop-Bridge/main.go \
+		-- \
+		-n -l=trace
+
+ifeq "${TARGET_OS}" "windows"
+	EXE_SUFFIX=.exe
+endif
+
+bridge-gui-tester:  build-gui
+	cp ./cmd/Desktop-Bridge/deploy/${TARGET_OS}/bridge-gui${EXE_SUFFIX} .
+	cd ./internal/frontend/bridge-gui/bridge-gui-tester && cmake . && make
+
+run-gui-tester: bridge-gui-tester
+	# copying tester as bridge so bridge-gui will start it and connect to it automatically
+	cp ./internal/frontend/bridge-gui/bridge-gui-tester/bridge-gui-tester${EXE_SUFFIX} bridge${EXE_SUFFIX}
+	./bridge-gui${EXE_SUFFIX}
+
 
 clean-vendor:
 	rm -rf ./vendor
 
 clean-gui:
 	cd internal/frontend/bridge-gui/ && \
-		rm -f Version.h && \
+		rm -f BuildConfig.h && \
 		rm -rf cmake-build-*/
 
 clean-vcpkg:
@@ -349,6 +373,6 @@ clean: clean-vendor clean-gui clean-vcpkg
 .PHONY: generate
 generate:
 	go generate ./...
-	$(MAKE) add-license
+	$(MAKE) build
 
 .FORCE:

README.md

@@ -1,5 +1,5 @@
 # Proton Mail Bridge and Import Export app
-Copyright (c) 2022 Proton AG
+Copyright (c) 2023 Proton AG
 
 This repository holds the Proton Mail Bridge and the Proton Mail Import-Export applications.
 For a detailed build information see [BUILDS](./BUILDS.md).
@@ -48,9 +48,6 @@ major problems.
 
 ## Environment Variables
 
-### Bridge application
-- `BRIDGESTRICTMODE`: tells bridge to turn on `bbolt`'s "strict mode" which checks the database after every `Commit`. Set to `1` to enable.
-
 ### Dev build or run
 - `APP_VERSION`: set the bridge app version used during testing or building
 - `PROTONMAIL_ENV`: when set to `dev` it is not using Sentry to report crashes
@@ -62,35 +59,34 @@ major problems.
 - `TAGS`: set build tags for tests
 - `FEATURES`: set feature dir, file or scenario to test
 
+## Folders
+
+There are now three types of system folders which Bridge recognises:
+
+|        | Windows                             | Mac                                                 | Linux                               | Linux (XDG)                           |
+|--------|-------------------------------------|-----------------------------------------------------|-------------------------------------|---------------------------------------|
+| config | %APPDATA%\protonmail\bridge-v3      | ~/Library/Application Support/protonmail/bridge-v3  | ~/.config/protonmail/bridge-v3      | $XDG_CONFIG_HOME/protonmail/bridge-v3 |
+| cache  | %LOCALAPPDATA%\protonmail\bridge-v3 | ~/Library/Caches/protonmail/bridge-v3               | ~/.cache/protonmail/bridge-v3       | $XDG_CACHE_HOME/protonmail/bridge-v3  |
+| data	  | %APPDATA%\protonmail\bridge-v3      | ~/Library/Application Support/protonmail/bridge-v3  | ~/.local/share/protonmail/bridge-v3 | $XDG_DATA_HOME/protonmail/bridge-v3   |
+| temp   | %LOCALAPPDATA%\Temp                 | $TMPDIR if non-empty, else /tmp                     | $TMPDIR if non-empty, else /tmp     | $TMPDIR if non-empty, else /tmp       |
+
+
 
 ## Files
-### Database
-The database stores metadata necessary for presenting messages and mailboxes to an email client:
-- Linux: `~/.cache/protonmail/bridge/<cacheVersion>/mailbox-<userID>.db` (unless `XDG_CACHE_HOME` is set, in which case that is used as your `~`)
-- macOS: `~/Library/Caches/protonmail/bridge/<cacheVersion>/mailbox-<userID>.db`
-- Windows: `%LOCALAPPDATA%\protonmail\bridge\<cacheVersion>\mailbox-<userID>.db`
 
-### Preferences
-User preferences are stored in json at the following location:
-- Linux: `~/.config/protonmail/bridge/prefs.json`
-- macOS: `~/Library/ApplicationSupport/protonmail/bridge/prefs.json`
-- Windows: `%APPDATA%\protonmail\bridge\prefs.json`
+|                        | Base Dir | Path                       |
+|------------------------|----------|----------------------------|
+| bridge lock file       | cache    | bridge.lock                |
+| bridge-gui lock file   | cache    | bridge-gui.lock            |
+| vault                  | config   | vault.enc                  |
+| gRPC server json       | config   | grpcServerConfig.json      |
+| gRPC client json       | config   | grpcClientConfig_<id>.json |
+| gRPC Focus server json | config   | grpcFocusServerConfig.json |
+| Logs                   | data     | logs                       |
+| gluon DB               | data     | gluon/backend/db           |
+| gluon messages         | data     | gluon/backend/store        |
+| Update files           | data     | updates                    |
+| sentry cache           | data     | sentry_cache               |
+| Mac/Linux File Socket  | temp     | bridge{4_DIGITS}           |
 
-### IMAP Cache
-The currently subscribed mailboxes are held in a json file:
-- Linux: `~/.cache/protonmail/bridge/<cacheVersion>/user_info.json` (unless `XDG_CACHE_HOME` is set, in which case that is used as your `~`)
-- macOS: `~/Library/Caches/protonmail/bridge/<cacheVersion>/user_info.json`
-- Windows: `%LOCALAPPDATA%\protonmail\bridge\<cacheVersion>\user_info.json`
-
-### Lock file
-Bridge utilises an on-disk lock to ensure only one instance is run at once. The lock file is here: 
-- Linux: `~/.cache/protonmail/bridge/<cacheVersion>/bridge.lock` (unless `XDG_CACHE_HOME` is set, in which case that is used as your `~`)
-- macOS: `~/Library/Caches/protonmail/bridge/<cacheVersion>/bridge.lock`
-- Windows: `%LOCALAPPDATA%\protonmail\bridge\<cacheVersion>\bridge.lock`
-
-### TLS Certificate and Key
-When bridge first starts, it generates a unique TLS certificate and key file at the following locations:
-- Linux: `~/.config/protonmail/bridge/{cert,key}.pem` (unless `XDG_CONFIG_HOME` is set, in which case that is used as your `~/.config`)
-- macOS: `~/Library/ApplicationSupport/protonmail/bridge/{cert,key}.pem`
-- Windows: `%APPDATA%\protonmail\bridge\{cert,key}.pem`
 

cmd/launcher/main.go

@@ -25,6 +25,7 @@ import (
 	"time"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/gopenpgp/v2/crypto"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/crash"
@@ -59,10 +60,10 @@ func main() { //nolint:funlen
 	logrus.SetLevel(logrus.DebugLevel)
 	l := logrus.WithField("launcher_version", constants.Version)
 
-	reporter := sentry.NewReporter(appName, constants.Version, useragent.New())
+	reporter := sentry.NewReporter(appName, useragent.New())
 
 	crashHandler := crash.NewHandler(reporter.ReportException)
-	defer crashHandler.HandlePanic()
+	defer async.HandlePanic(crashHandler)
 
 	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, constants.ConfigName))
 	if err != nil {
@@ -127,9 +128,11 @@ func main() { //nolint:funlen
 
 	l = l.WithField("exe_path", exe)
 
-	args, wait, mainExe := findAndStripWait(args)
+	args, wait, mainExes := findAndStripWait(args)
 	if wait {
-		waitForProcessToFinish(mainExe)
+		for _, mainExe := range mainExes {
+			waitForProcessToFinish(mainExe)
+		}
 	}
 
 	cmd := execabs.Command(exe, appendLauncherPath(launcher, args)...) //nolint:gosec
@@ -186,12 +189,11 @@ func findAndStrip[T comparable](slice []T, v T) (strippedList []T, found bool) {
 }
 
 // findAndStripWait Check for waiter flag get its value and clean them both.
-func findAndStripWait(args []string) ([]string, bool, string) {
+func findAndStripWait(args []string) ([]string, bool, []string) {
 	res := append([]string{}, args...)
 
 	hasFlag := false
-	var value string
-
+	values := make([]string, 0)
 	for k, v := range res {
 		if v != FlagWait {
 			continue
@@ -200,14 +202,16 @@ func findAndStripWait(args []string) ([]string, bool, string) {
 			continue
 		}
 		hasFlag = true
-		value = res[k+1]
+		values = append(values, res[k+1])
 	}
 
 	if hasFlag {
 		res, _ = findAndStrip(res, FlagWait)
-		res, _ = findAndStrip(res, value)
+		for _, v := range values {
+			res, _ = findAndStrip(res, v)
+		}
 	}
-	return res, hasFlag, value
+	return res, hasFlag, values
 }
 
 func getPathToUpdatedExecutable(

cmd/launcher/main_test.go

@@ -56,3 +56,25 @@ func TestFindAndStrip(t *testing.T) {
 	assert.False(t, found)
 	assert.True(t, xslices.Equal(result, []string{}))
 }
+
+func TestFindAndStripWait(t *testing.T) {
+	result, found, values := findAndStripWait([]string{"a", "b", "c"})
+	assert.False(t, found)
+	assert.True(t, xslices.Equal(result, []string{"a", "b", "c"}))
+	assert.True(t, xslices.Equal(values, []string{}))
+
+	result, found, values = findAndStripWait([]string{"a", "--wait", "b"})
+	assert.True(t, found)
+	assert.True(t, xslices.Equal(result, []string{"a"}))
+	assert.True(t, xslices.Equal(values, []string{"b"}))
+
+	result, found, values = findAndStripWait([]string{"a", "--wait", "b", "--wait", "c"})
+	assert.True(t, found)
+	assert.True(t, xslices.Equal(result, []string{"a"}))
+	assert.True(t, xslices.Equal(values, []string{"b", "c"}))
+
+	result, found, values = findAndStripWait([]string{"a", "--wait", "b", "--wait", "c", "--wait", "d"})
+	assert.True(t, found)
+	assert.True(t, xslices.Equal(result, []string{"a"}))
+	assert.True(t, xslices.Equal(values, []string{"b", "c", "d"}))
+}

go.mod

@@ -4,21 +4,20 @@ go 1.18
 
 require (
 	github.com/0xAX/notificator v0.0.0-20220220101646-ee9b8921e557
-	github.com/Masterminds/semver/v3 v3.1.1
-	github.com/ProtonMail/gluon v0.14.2-0.20230106095250-7e99ea4da61e
+	github.com/Masterminds/semver/v3 v3.2.0
+	github.com/ProtonMail/gluon v0.15.1-0.20230426114936-a356ef7f2753
 	github.com/ProtonMail/go-autostart v0.0.0-20210130080809-00ed301c8e9a
-	github.com/ProtonMail/go-proton-api v0.2.4-0.20230109143101-f8fd857ee5b4
-	github.com/ProtonMail/go-rfc5322 v0.11.0
-	github.com/ProtonMail/gopenpgp/v2 v2.4.10
-	github.com/PuerkitoBio/goquery v1.8.0
+	github.com/ProtonMail/go-proton-api v0.4.1-0.20230406143739-c7596e170799
+	github.com/ProtonMail/gopenpgp/v2 v2.5.2
+	github.com/PuerkitoBio/goquery v1.8.1
 	github.com/abiosoft/ishell v2.0.0+incompatible
 	github.com/allan-simon/go-singleinstance v0.0.0-20210120080615-d0997106ab37
-	github.com/bradenaw/juniper v0.8.0
+	github.com/bradenaw/juniper v0.10.2
 	github.com/cucumber/godog v0.12.5
 	github.com/cucumber/messages-go/v16 v16.0.1
 	github.com/docker/docker-credential-helpers v0.6.3
 	github.com/elastic/go-sysinfo v1.8.1
-	github.com/emersion/go-imap v1.2.1-0.20220429085312-746087b7a317
+	github.com/emersion/go-imap v1.2.1
 	github.com/emersion/go-imap-id v0.0.0-20190926060100-f94a56b9ecde
 	github.com/emersion/go-message v0.16.0
 	github.com/emersion/go-sasl v0.0.0-20220912192320-0145f2c60ead
@@ -26,7 +25,7 @@ require (
 	github.com/fatih/color v1.13.0
 	github.com/getsentry/sentry-go v0.15.0
 	github.com/go-resty/resty/v2 v2.7.0
-	github.com/goccy/go-json v0.9.11
+	github.com/goccy/go-json v0.10.0
 	github.com/godbus/dbus v4.1.0+incompatible
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.9
@@ -35,36 +34,38 @@ require (
 	github.com/jaytaylor/html2text v0.0.0-20211105163654-bc68cce691ba
 	github.com/keybase/go-keychain v0.0.0
 	github.com/miekg/dns v1.1.50
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58
 	github.com/pkg/errors v0.9.1
-	github.com/pkg/profile v1.6.0
+	github.com/pkg/profile v1.7.0
 	github.com/sirupsen/logrus v1.9.0
-	github.com/stretchr/testify v1.8.0
-	github.com/urfave/cli/v2 v2.20.3
+	github.com/stretchr/testify v1.8.1
+	github.com/urfave/cli/v2 v2.24.4
 	github.com/vmihailenco/msgpack/v5 v5.3.5
-	go.uber.org/goleak v1.2.0
-	golang.org/x/exp v0.0.0-20221023144134-a1e5550cf13e
-	golang.org/x/net v0.1.0
-	golang.org/x/sys v0.1.0
-	golang.org/x/text v0.4.0
-	google.golang.org/grpc v1.50.1
+	go.uber.org/goleak v1.2.1
+	golang.org/x/exp v0.0.0-20230213192124-5e25df0256eb
+	golang.org/x/net v0.7.0
+	golang.org/x/sys v0.5.0
+	golang.org/x/text v0.7.0
+	google.golang.org/grpc v1.53.0
 	google.golang.org/protobuf v1.28.1
 	howett.net/plist v1.0.0
 )
 
 require (
-	ariga.io/atlas v0.7.0 // indirect
-	entgo.io/ent v0.11.2 // indirect
+	ariga.io/atlas v0.9.1-0.20230119145809-92243f7c55cb // indirect
+	entgo.io/ent v0.11.8 // indirect
 	github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf // indirect
-	github.com/ProtonMail/go-crypto v0.0.0-20220824120805-4b6e5c587895 // indirect
-	github.com/ProtonMail/go-mime v0.0.0-20220429130430-2192574d760f // indirect
+	github.com/ProtonMail/go-crypto v0.0.0-20230217124315-7d5c6f04bbb8 // indirect
+	github.com/ProtonMail/go-mime v0.0.0-20221031134845-8fd9bc37cf08 // indirect
 	github.com/ProtonMail/go-srp v0.0.5 // indirect
 	github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db // indirect
 	github.com/agext/levenshtein v1.2.3 // indirect
 	github.com/andybalholm/cascadia v1.3.1 // indirect
-	github.com/antlr/antlr4/runtime/Go/antlr v1.4.10 // indirect
 	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/bytedance/sonic v1.8.1 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
 	github.com/chzyer/test v1.0.0 // indirect
-	github.com/cloudflare/circl v1.2.0 // indirect
+	github.com/cloudflare/circl v1.3.2 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/cronokirby/saferith v0.33.0 // indirect
 	github.com/cucumber/gherkin-go/v19 v19.0.3 // indirect
@@ -73,48 +74,53 @@ require (
 	github.com/elastic/go-windows v1.0.1 // indirect
 	github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594 // indirect
 	github.com/emersion/go-vcard v0.0.0-20220507122617-d4056df0ec4a // indirect
+	github.com/felixge/fgprof v0.9.3 // indirect
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
-	github.com/gin-gonic/gin v1.8.1 // indirect
+	github.com/gin-gonic/gin v1.9.0 // indirect
 	github.com/go-openapi/inflect v0.19.0 // indirect
-	github.com/go-playground/locales v0.14.0 // indirect
-	github.com/go-playground/universal-translator v0.18.0 // indirect
-	github.com/go-playground/validator/v10 v10.11.1 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.11.2 // indirect
 	github.com/gofrs/uuid v4.3.0+incompatible // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/pprof v0.0.0-20211214055906-6f57359322fd // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
 	github.com/hashicorp/go-memdb v1.3.3 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
-	github.com/hashicorp/hcl/v2 v2.14.0 // indirect
+	github.com/hashicorp/hcl/v2 v2.16.1 // indirect
 	github.com/joeshaw/multierror v0.0.0-20140124173710-69b34d4ec901 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect
-	github.com/mattn/go-sqlite3 v1.14.15 // indirect
+	github.com/mattn/go-sqlite3 v1.14.16 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
+	github.com/pierrec/lz4/v4 v4.1.17 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
 	github.com/rivo/uniseg v0.4.2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
-	github.com/ugorji/go/codec v1.2.7 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.10 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
-	github.com/zclconf/go-cty v1.11.0 // indirect
-	golang.org/x/crypto v0.1.0 // indirect
-	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
-	golang.org/x/sync v0.0.0-20220907140024-f12130a52804 // indirect
-	golang.org/x/tools v0.1.13-0.20220804200503-81c7dc4e4efa // indirect
-	google.golang.org/genproto v0.0.0-20220921223823-23cae91e6737 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	github.com/zclconf/go-cty v1.12.1 // indirect
+	golang.org/x/arch v0.2.0 // indirect
+	golang.org/x/crypto v0.6.0 // indirect
+	golang.org/x/mod v0.8.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/tools v0.3.1-0.20221202221704-aa9f4b2f3d57 // indirect
+	google.golang.org/genproto v0.0.0-20230221151758-ace64dc21148 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 

go.sum

@@ -1,5 +1,5 @@
-ariga.io/atlas v0.7.0 h1:daEFdUsyNm7EHyzcMfjWwq/fVv48fCfad+dIGyobY1k=
-ariga.io/atlas v0.7.0/go.mod h1:ft47uSh5hWGDCmQC9DsztZg6Xk+KagM5Ts/mZYKb9JE=
+ariga.io/atlas v0.9.1-0.20230119145809-92243f7c55cb h1:mbsFtavDqGdYwdDpP50LGOOZ2hgyGoJcZeOpbgKMyu4=
+ariga.io/atlas v0.9.1-0.20230119145809-92243f7c55cb/go.mod h1:T230JFcENj4ZZzMkZrXFDSkv+2kXkUgpJ5FQQ5hMcKU=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
@@ -13,44 +13,41 @@ cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqCl
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-entgo.io/ent v0.11.2 h1:UM2/BUhF2FfsxPHRxLjQbhqJNaDdVlOwNIAMLs2jyto=
-entgo.io/ent v0.11.2/go.mod h1:YGHEQnmmIUgtD5b1ICD5vg74dS3npkNnmC5K+0J+IHU=
+entgo.io/ent v0.11.8 h1:M/M0QL1CYCUSdqGRXUrXhFYSDRJPsOOrr+RLEej/gyQ=
+entgo.io/ent v0.11.8/go.mod h1:ericBi6Q8l3wBH1wEIDfKxw7rcQEuRPyBfbIzjtxJ18=
 github.com/0xAX/notificator v0.0.0-20220220101646-ee9b8921e557 h1:l6surSnJ3RP4qA1qmKJ+hQn3UjytosdoG27WGjrDlVs=
 github.com/0xAX/notificator v0.0.0-20220220101646-ee9b8921e557/go.mod h1:sTrmvD/TxuypdOERsDOS7SndZg0rzzcCi1b6wQMXUYM=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
-github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
-github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
+github.com/Masterminds/semver/v3 v3.2.0 h1:3MEsd0SM6jqZojhjLWWeBY+Kcjy9i6MQAeY7YgDP83g=
+github.com/Masterminds/semver/v3 v3.2.0/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/ProtonMail/bcrypt v0.0.0-20210511135022-227b4adcab57/go.mod h1:HecWFHognK8GfRDGnFQbW/LiV7A3MX3gZVs45vk5h8I=
 github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf h1:yc9daCCYUefEs69zUkSzubzjBbL+cmOXgnmt9Fyd9ug=
 github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf/go.mod h1:o0ESU9p83twszAU8LBeJKFAAMX14tISa0yk4Oo5TOqo=
 github.com/ProtonMail/docker-credential-helpers v1.1.0 h1:+kvUIpwWcbtP3WFv5sSvkFn/XLzSqPOB5AAthuk9xPk=
 github.com/ProtonMail/docker-credential-helpers v1.1.0/go.mod h1:mK0aBveCxhnQ756AmaTfXMZDeULvheYVhF/MWMErN5g=
-github.com/ProtonMail/gluon v0.14.2-0.20230106095250-7e99ea4da61e h1://xRNjGTAMXw2U91MtqPc4krUtxQmt2+4z1oYrBaOWU=
-github.com/ProtonMail/gluon v0.14.2-0.20230106095250-7e99ea4da61e/go.mod h1:z2AxLIiBCT1K+0OBHyaDI7AEaO5qI6/BEC2TE42vs4Q=
+github.com/ProtonMail/gluon v0.15.1-0.20230426114936-a356ef7f2753 h1:Ae/Ny7Fm+8RS/L+/9CiT6ntoPFSIJLyrLbD5bI77il4=
+github.com/ProtonMail/gluon v0.15.1-0.20230426114936-a356ef7f2753/go.mod h1:yA4hk6CJw0BMo+YL8Y3ckCYs5L20sysu9xseshwY3QI=
 github.com/ProtonMail/go-autostart v0.0.0-20210130080809-00ed301c8e9a h1:D+aZah+k14Gn6kmL7eKxoo/4Dr/lK3ChBcwce2+SQP4=
 github.com/ProtonMail/go-autostart v0.0.0-20210130080809-00ed301c8e9a/go.mod h1:oTGdE7/DlWIr23G0IKW3OXK9wZ5Hw1GGiaJFccTvZi4=
 github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7/go.mod h1:z4/9nQmJSSwwds7ejkxaJwO37dru3geImFUdJlaLzQo=
-github.com/ProtonMail/go-crypto v0.0.0-20220822140716-1678d6eb0cbe/go.mod h1:UBYPn8k0D56RtnR8RFQMjmh4KrZzWJ5o7Z9SYjossQ8=
-github.com/ProtonMail/go-crypto v0.0.0-20220824120805-4b6e5c587895 h1:NsReiLpErIPzRrnogAXYwSoU7txA977LjDGrbkewJbg=
-github.com/ProtonMail/go-crypto v0.0.0-20220824120805-4b6e5c587895/go.mod h1:UBYPn8k0D56RtnR8RFQMjmh4KrZzWJ5o7Z9SYjossQ8=
+github.com/ProtonMail/go-crypto v0.0.0-20230124153114-0acdc8ae009b/go.mod h1:I0gYDMZ6Z5GRU7l58bNFSkPTFN6Yl12dsUlAZ8xy98g=
+github.com/ProtonMail/go-crypto v0.0.0-20230217124315-7d5c6f04bbb8 h1:wPbRQzjjwFc0ih8puEVAOFGELsn1zoIIYdxvML7mDxA=
+github.com/ProtonMail/go-crypto v0.0.0-20230217124315-7d5c6f04bbb8/go.mod h1:I0gYDMZ6Z5GRU7l58bNFSkPTFN6Yl12dsUlAZ8xy98g=
 github.com/ProtonMail/go-message v0.0.0-20210611055058-fabeff2ec753 h1:I8IsYA297x0QLU80G5I6aLYUu3JYNSpo8j5fkXtFDW0=
 github.com/ProtonMail/go-message v0.0.0-20210611055058-fabeff2ec753/go.mod h1:NBAn21zgCJ/52WLDyed18YvYFm5tEoeDauubFqLokM4=
-github.com/ProtonMail/go-mime v0.0.0-20220302105931-303f85f7fe0f/go.mod h1:NYt+V3/4rEeDuaev/zw1zCq8uqVEuPHzDPo3OZrlGJ4=
-github.com/ProtonMail/go-mime v0.0.0-20220429130430-2192574d760f h1:4IWzKjHzZxdrW9k4zl/qCwenOVHDbVDADPPHFLjs0Oc=
-github.com/ProtonMail/go-mime v0.0.0-20220429130430-2192574d760f/go.mod h1:qRZgbeASl2a9OwmsV85aWwRqic0NHPh+9ewGAzb4cgM=
-github.com/ProtonMail/go-proton-api v0.2.4-0.20230109143101-f8fd857ee5b4 h1:xCot3copmyPz0cDOwl1XVmYQDRJGi6EgJUKJ58Vn58U=
-github.com/ProtonMail/go-proton-api v0.2.4-0.20230109143101-f8fd857ee5b4/go.mod h1:JUo5IQG0hNuPRuDpOUsCOvtee6UjTEHHF1QN2i8RSos=
-github.com/ProtonMail/go-rfc5322 v0.11.0 h1:o5Obrm4DpmQEffvgsVqG6S4BKwC1Wat+hYwjIp2YcCY=
-github.com/ProtonMail/go-rfc5322 v0.11.0/go.mod h1:6oOKr0jXvpoE6pwTx/HukigQpX2J9WUf6h0auplrFTw=
+github.com/ProtonMail/go-mime v0.0.0-20221031134845-8fd9bc37cf08 h1:dS7r5z4iGS0qCjM7UwWdsEMzQesUQbGcXdSm2/tWboA=
+github.com/ProtonMail/go-mime v0.0.0-20221031134845-8fd9bc37cf08/go.mod h1:qRZgbeASl2a9OwmsV85aWwRqic0NHPh+9ewGAzb4cgM=
+github.com/ProtonMail/go-proton-api v0.4.1-0.20230406143739-c7596e170799 h1:slk4Drrkij1EVTnFOlIDyJsfjt69tnw8w2g1NMb253U=
+github.com/ProtonMail/go-proton-api v0.4.1-0.20230406143739-c7596e170799/go.mod h1:kis4GD6FHp1ZWnenSBepldt8ai+vYalDPeey9yGwyXk=
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@@ -63,9 +60,6 @@ github.com/allan-simon/go-singleinstance v0.0.0-20210120080615-d0997106ab37 h1:2
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@@ -75,19 +69,27 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
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@@ -96,7 +98,6 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
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@@ -120,8 +121,8 @@ github.com/elastic/go-sysinfo v1.8.1 h1:4Yhj+HdV6WjbCRgGdZpPJ8lZQlXZLKDAeIkmQ/VR
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@@ -136,6 +137,8 @@ github.com/emersion/go-vcard v0.0.0-20220507122617-d4056df0ec4a/go.mod h1:HMJKR5
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@@ -144,8 +147,8 @@ github.com/getsentry/sentry-go v0.15.0/go.mod h1:RZPJKSw+adu8PBNygiri/A98FqVr2Ht
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@@ -239,12 +243,13 @@ github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ
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@@ -261,16 +266,17 @@ github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfV
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@@ -282,13 +288,14 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
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@@ -314,17 +321,20 @@ github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn
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@@ -344,9 +354,7 @@ github.com/rivo/uniseg v0.4.2 h1:YwD0ulJSJytLpiaWua0sBDusfsCZohxjxzVTYjwxfV8=
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@@ -355,7 +363,6 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg
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@@ -376,24 +383,26 @@ github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf h1:pvbZ0lM0XWPBqUKqFU8cma
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 github.com/vmihailenco/msgpack/v5 v5.3.5/go.mod h1:7xyJ9e+0+9SaZT0Wt1RGleJXzli6Q/V5KbhBonMG9jc=
 github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
@@ -402,16 +411,20 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
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-github.com/zclconf/go-cty v1.11.0/go.mod h1:s9IfD1LK5ccNMSWCVFCE2rJfHiZgi7JijgeWIMfhLvA=
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 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
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+golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
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 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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@@ -420,18 +433,16 @@ golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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-golang.org/x/crypto v0.1.0 h1:MDRAIl0xIo9Io2xV565hzXHw3zVseKrJKodhohM5CjU=
-golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=
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@@ -440,18 +451,16 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
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+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
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@@ -471,9 +480,9 @@ golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96b
 golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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@@ -483,8 +492,10 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@@ -494,7 +505,6 @@ golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5h
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@@ -508,15 +518,18 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
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+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -524,8 +537,8 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5-0.20201125200606-c27b9fd57aec/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
-golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -546,11 +559,11 @@ golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.13-0.20220804200503-81c7dc4e4efa h1:uKcci2q7Qtp6nMTC/AAvfNUAldFtJuHWV9/5QWiypts=
-golang.org/x/tools v0.1.13-0.20220804200503-81c7dc4e4efa/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.3.1-0.20221202221704-aa9f4b2f3d57 h1:/X0t/E4VxbZE7MLS7auvE7YICHeVvbIa9vkOVvYW/24=
+golang.org/x/tools v0.3.1-0.20221202221704-aa9f4b2f3d57/go.mod h1:/rWhSS2+zyEVwoJf8YAX6L2f0ntZ7Kn/mGgAWcipA5k=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -573,13 +586,13 @@ google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
 google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
-google.golang.org/genproto v0.0.0-20220921223823-23cae91e6737 h1:K1zaaMdYBXRyX+cwFnxj7M6zwDyumLQMZ5xqwGvjreQ=
-google.golang.org/genproto v0.0.0-20220921223823-23cae91e6737/go.mod h1:2r/26NEF3bFmT3eC3aZreahSal0C3Shl8Gi6vyDYqOQ=
+google.golang.org/genproto v0.0.0-20230221151758-ace64dc21148 h1:muK+gVBJBfFb4SejshDBlN2/UgxCCOKH9Y34ljqEGOc=
+google.golang.org/genproto v0.0.0-20230221151758-ace64dc21148/go.mod h1:3Dl5ZL0q0isWJt+FVcfpQyirqemEuLAK/iFvg1UP1Hw=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
-google.golang.org/grpc v1.50.1 h1:DS/BukOZWp8s6p4Dt/tOaJaTQyPyOoCcrjroHuCeLzY=
-google.golang.org/grpc v1.50.1/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
+google.golang.org/grpc v1.53.0 h1:LAv2ds7cmFV/XTS3XG1NneeENYrXGmorPxsBbptIjNc=
+google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
@@ -598,11 +611,8 @@ gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -612,3 +622,4 @@ honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt
 howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
 howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

internal/app/app.go

@@ -19,13 +19,16 @@ package app
 
 import (
 	"fmt"
+	"math/rand"
 	"net/http"
 	"net/http/cookiejar"
 	"os"
 	"path/filepath"
 	"runtime"
+	"time"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/cookies"
@@ -79,7 +82,7 @@ const (
 	appUsage = "Proton Mail IMAP and SMTP Bridge"
 )
 
-func New() *cli.App { //nolint:funlen
+func New() *cli.App {
 	app := cli.NewApp()
 
 	app.Name = constants.FullAppName
@@ -154,7 +157,10 @@ func New() *cli.App { //nolint:funlen
 	return app
 }
 
-func run(c *cli.Context) error { //nolint:funlen
+func run(c *cli.Context) error {
+	// Seed the default RNG from the math/rand package.
+	rand.Seed(time.Now().UnixNano())
+
 	// Get the current bridge version.
 	version, err := semver.NewVersion(constants.Version)
 	if err != nil {
@@ -165,7 +171,7 @@ func run(c *cli.Context) error { //nolint:funlen
 	identifier := useragent.New()
 
 	// Create a new Sentry client that will be used to report crashes etc.
-	reporter := sentry.NewReporter(constants.FullAppName, constants.Version, identifier)
+	reporter := sentry.NewReporter(constants.FullAppName, identifier)
 
 	// Determine the exe that should be used to restart/autostart the app.
 	// By default, this is the launcher, if used. Otherwise, we try to get
@@ -180,14 +186,14 @@ func run(c *cli.Context) error { //nolint:funlen
 		exe = os.Args[0]
 	}
 
-	migrationErr := migrateOldVersions()
+	// Restart the app if requested.
+	return withRestarter(exe, func(restarter *restarter.Restarter) error {
+		// Handle crashes with various actions.
+		return withCrashHandler(restarter, reporter, func(crashHandler *crash.Handler, quitCh <-chan struct{}) error {
+			migrationErr := migrateOldVersions()
 
-	// Run with profiling if requested.
-	return withProfiler(c, func() error {
-		// Restart the app if requested.
-		return withRestarter(exe, func(restarter *restarter.Restarter) error {
-			// Handle crashes with various actions.
-			return withCrashHandler(restarter, reporter, func(crashHandler *crash.Handler, quitCh <-chan struct{}) error {
+			// Run with profiling if requested.
+			return withProfiler(c, func() error {
 				// Load the locations where we store our files.
 				return WithLocations(func(locations *locations.Locations) error {
 					// Migrate the keychain helper.
@@ -203,30 +209,45 @@ func run(c *cli.Context) error { //nolint:funlen
 						}
 
 						// Ensure we are the only instance running.
-						return withSingleInstance(locations, version, func() error {
+						settings, err := locations.ProvideSettingsPath()
+						if err != nil {
+							logrus.WithError(err).Error("Failed to get settings path")
+						}
+
+						return withSingleInstance(settings, locations.GetLockFile(), version, func() error {
 							// Unlock the encrypted vault.
-							return WithVault(locations, func(vault *vault.Vault, insecure, corrupt bool) error {
-								if !vault.Migrated() {
+							return WithVault(locations, crashHandler, func(v *vault.Vault, insecure, corrupt bool) error {
+								// Report insecure vault.
+								if insecure {
+									_ = reporter.ReportMessageWithContext("Vault is insecure", map[string]interface{}{})
+								}
+
+								// Report corrupt vault.
+								if corrupt {
+									_ = reporter.ReportMessageWithContext("Vault is corrupt", map[string]interface{}{})
+								}
+
+								if !v.Migrated() {
 									// Migrate old settings into the vault.
-									if err := migrateOldSettings(vault); err != nil {
+									if err := migrateOldSettings(v); err != nil {
 										logrus.WithError(err).Error("Failed to migrate old settings")
 									}
 
 									// Migrate old accounts into the vault.
-									if err := migrateOldAccounts(locations, vault); err != nil {
+									if err := migrateOldAccounts(locations, v); err != nil {
 										logrus.WithError(err).Error("Failed to migrate old accounts")
 									}
 
 									// The vault has been migrated.
-									if err := vault.SetMigrated(); err != nil {
+									if err := v.SetMigrated(); err != nil {
 										logrus.WithError(err).Error("Failed to mark vault as migrated")
 									}
 								}
 
 								// Load the cookies from the vault.
-								return withCookieJar(vault, func(cookieJar http.CookieJar) error {
+								return withCookieJar(v, func(cookieJar http.CookieJar) error {
 									// Create a new bridge instance.
-									return withBridge(c, exe, locations, version, identifier, crashHandler, reporter, vault, cookieJar, func(b *bridge.Bridge, eventCh <-chan events.Event) error {
+									return withBridge(c, exe, locations, version, identifier, crashHandler, reporter, v, cookieJar, func(b *bridge.Bridge, eventCh <-chan events.Event) error {
 										if insecure {
 											logrus.Warn("The vault key could not be retrieved; the vault will not be encrypted")
 											b.PushError(bridge.ErrVaultInsecure)
@@ -251,15 +272,15 @@ func run(c *cli.Context) error { //nolint:funlen
 }
 
 // If there's another instance already running, try to raise it and exit.
-func withSingleInstance(locations *locations.Locations, version *semver.Version, fn func() error) error {
+func withSingleInstance(settingPath, lockFile string, version *semver.Version, fn func() error) error {
 	logrus.Debug("Checking for other instances")
 	defer logrus.Debug("Single instance stopped")
 
-	lock, err := checkSingleInstance(locations.GetLockFile(), version)
+	lock, err := checkSingleInstance(settingPath, lockFile, version)
 	if err != nil {
 		logrus.Info("Another instance is already running; raising it")
 
-		if ok := focus.TryRaise(); !ok {
+		if ok := focus.TryRaise(settingPath); !ok {
 			return fmt.Errorf("another instance is already running but it could not be raised")
 		}
 
@@ -322,14 +343,7 @@ func WithLocations(fn func(*locations.Locations) error) error {
 	}
 
 	// Create a new locations object that will be used to provide paths to store files.
-	locations := locations.New(provider, constants.ConfigName)
-	defer func() {
-		if err := locations.Clean(); err != nil {
-			logrus.WithError(err).Error("Failed to clean locations")
-		}
-	}()
-
-	return fn(locations)
+	return fn(locations.New(provider, constants.ConfigName))
 }
 
 // Start profiling if requested.
@@ -366,7 +380,7 @@ func withCrashHandler(restarter *restarter.Restarter, reporter *sentry.Reporter,
 	defer logrus.Debug("Crash handler stopped")
 
 	crashHandler := crash.NewHandler(crash.ShowErrorNotification(constants.FullAppName))
-	defer crashHandler.HandlePanic()
+	defer async.HandlePanic(crashHandler)
 
 	// On crash, send crash report to Sentry.
 	crashHandler.AddRecoveryAction(reporter.ReportException)

internal/app/bridge.go

@@ -23,6 +23,7 @@ import (
 	"runtime"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/imap"
 	"github.com/ProtonMail/go-autostart"
 	"github.com/ProtonMail/gopenpgp/v2/crypto"
 	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
@@ -40,13 +41,11 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-const vaultSecretName = "bridge-vault-key"
-
 // deleteOldGoIMAPFiles Set with `-ldflags -X app.deleteOldGoIMAPFiles=true` to enable cleanup of old imap cache data.
 var deleteOldGoIMAPFiles bool //nolint:gochecknoglobals
 
 // withBridge creates creates and tears down the bridge.
-func withBridge( //nolint:funlen
+func withBridge(
 	c *cli.Context,
 	exe string,
 	locations *locations.Locations,
@@ -79,7 +78,7 @@ func withBridge( //nolint:funlen
 	)
 
 	// Create a proxy dialer which switches to a proxy if the request fails.
-	proxyDialer := dialer.NewProxyTLSDialer(pinningDialer, constants.APIHost)
+	proxyDialer := dialer.NewProxyTLSDialer(pinningDialer, constants.APIHost, crashHandler)
 
 	// Create the autostarter.
 	autostarter := newAutostarter(exe)
@@ -110,6 +109,7 @@ func withBridge( //nolint:funlen
 		// Crash and report stuff
 		crashHandler,
 		reporter,
+		imap.DefaultEpochUIDValidityGenerator(),
 
 		// The logging stuff.
 		c.String(flagLogIMAP) == "client" || c.String(flagLogIMAP) == "all",

internal/app/frontend.go

@@ -46,10 +46,11 @@ func runFrontend(
 
 	switch {
 	case c.Bool(flagCLI):
-		return bridgeCLI.New(bridge, restarter, eventCh).Loop()
+		return bridgeCLI.New(bridge, restarter, eventCh, crashHandler, quitCh).Loop()
 
 	case c.Bool(flagNonInteractive):
-		select {}
+		<-quitCh
+		return nil
 
 	case c.Bool(flagGRPC):
 		service, err := grpc.NewService(crashHandler, restarter, locations, bridge, eventCh, quitCh, !c.Bool(flagNoWindow), parentPID)

internal/app/migration.go

@@ -87,6 +87,11 @@ func migrateOldSettings(v *vault.Vault) error {
 		return fmt.Errorf("failed to get user config dir: %w", err)
 	}
 
+	return migrateOldSettingsWithDir(configDir, v)
+}
+
+// nolint:gosec
+func migrateOldSettingsWithDir(configDir string, v *vault.Vault) error {
 	b, err := os.ReadFile(filepath.Join(configDir, "protonmail", "bridge", "prefs.json"))
 	if errors.Is(err, fs.ErrNotExist) {
 		return nil
@@ -94,7 +99,27 @@ func migrateOldSettings(v *vault.Vault) error {
 		return fmt.Errorf("failed to read old prefs file: %w", err)
 	}
 
-	return migratePrefsToVault(v, b)
+	if err := migratePrefsToVault(v, b); err != nil {
+		return fmt.Errorf("failed to migrate prefs to vault: %w", err)
+	}
+
+	logrus.Info("Migrating TLS certificate")
+
+	certPEM, err := os.ReadFile(filepath.Join(configDir, "protonmail", "bridge", "cert.pem"))
+	if errors.Is(err, fs.ErrNotExist) {
+		return nil
+	} else if err != nil {
+		return fmt.Errorf("failed to read old cert file: %w", err)
+	}
+
+	keyPEM, err := os.ReadFile(filepath.Join(configDir, "protonmail", "bridge", "key.pem"))
+	if errors.Is(err, fs.ErrNotExist) {
+		return nil
+	} else if err != nil {
+		return fmt.Errorf("failed to read old key file: %w", err)
+	}
+
+	return v.SetBridgeTLSCertKey(certPEM, keyPEM)
 }
 
 func migrateOldAccounts(locations *locations.Locations, v *vault.Vault) error {
@@ -147,7 +172,12 @@ func migrateOldAccount(userID string, store *credentials.Store, v *vault.Vault)
 		return fmt.Errorf("failed to split api token for user %q: %w", userID, err)
 	}
 
-	user, err := v.AddUser(creds.UserID, creds.Name, authUID, authRef, creds.MailboxPassword)
+	var primaryEmail string
+	if len(creds.EmailList()) > 0 {
+		primaryEmail = creds.EmailList()[0]
+	}
+
+	user, err := v.AddUser(creds.UserID, creds.Name, primaryEmail, authUID, authRef, creds.MailboxPassword)
 	if err != nil {
 		return fmt.Errorf("failed to add user %q: %w", userID, err)
 	}
@@ -182,7 +212,6 @@ func migrateOldAccount(userID string, store *credentials.Store, v *vault.Vault)
 	return nil
 }
 
-// nolint:funlen
 func migratePrefsToVault(vault *vault.Vault, b []byte) error {
 	var prefs struct {
 		IMAPPort int  `json:"user_port_imap,,string"`
@@ -193,11 +222,10 @@ func migratePrefsToVault(vault *vault.Vault, b []byte) error {
 		UpdateChannel updater.Channel `json:"update_channel"`
 		UpdateRollout float64         `json:"rollout,,string"`
 
-		FirstStart    bool            `json:"first_time_start,,string"`
-		FirstStartGUI bool            `json:"first_time_start_gui,,string"`
-		ColorScheme   string          `json:"color_scheme"`
-		LastVersion   *semver.Version `json:"last_used_version"`
-		Autostart     bool            `json:"autostart,,string"`
+		FirstStart  bool            `json:"first_time_start,,string"`
+		ColorScheme string          `json:"color_scheme"`
+		LastVersion *semver.Version `json:"last_used_version"`
+		Autostart   bool            `json:"autostart,,string"`
 
 		AllowProxy        bool `json:"allow_proxy,,string"`
 		FetchWorkers      int  `json:"fetch_workers,,string"`
@@ -241,10 +269,6 @@ func migratePrefsToVault(vault *vault.Vault, b []byte) error {
 		errs = multierror.Append(errs, fmt.Errorf("failed to migrate first start: %w", err))
 	}
 
-	if err := vault.SetFirstStartGUI(prefs.FirstStartGUI); err != nil {
-		errs = multierror.Append(errs, fmt.Errorf("failed to migrate first start GUI: %w", err))
-	}
-
 	if err := vault.SetColorScheme(prefs.ColorScheme); err != nil {
 		errs = multierror.Append(errs, fmt.Errorf("failed to migrate color scheme: %w", err))
 	}
@@ -265,14 +289,6 @@ func migratePrefsToVault(vault *vault.Vault, b []byte) error {
 		errs = multierror.Append(errs, fmt.Errorf("failed to migrate show all mail: %w", err))
 	}
 
-	if err := vault.SetSyncWorkers(prefs.FetchWorkers); err != nil {
-		errs = multierror.Append(errs, fmt.Errorf("failed to migrate sync workers: %w", err))
-	}
-
-	if err := vault.SetSyncAttPool(prefs.AttachmentWorkers); err != nil {
-		errs = multierror.Append(errs, fmt.Errorf("failed to migrate sync attachment pool: %w", err))
-	}
-
 	if err := vault.SetCookies([]byte(prefs.Cookies)); err != nil {
 		errs = multierror.Append(errs, fmt.Errorf("failed to migrate cookies: %w", err))
 	}

internal/app/migration_test.go

@@ -25,6 +25,7 @@ import (
 	"runtime"
 	"testing"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/gopenpgp/v2/crypto"
 	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
 	"github.com/ProtonMail/proton-bridge/v3/internal/cookies"
@@ -38,54 +39,49 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestMigratePrefsToVault(t *testing.T) {
+func TestMigratePrefsToVaultWithKeys(t *testing.T) {
 	// Create a new vault.
-	vault, corrupt, err := vault.New(t.TempDir(), t.TempDir(), []byte("my secret key"))
+	vault, corrupt, err := vault.New(t.TempDir(), t.TempDir(), []byte("my secret key"), async.NoopPanicHandler{})
 	require.NoError(t, err)
 	require.False(t, corrupt)
 
 	// load the old prefs file.
-	b, err := os.ReadFile(filepath.Join("testdata", "prefs.json"))
-	require.NoError(t, err)
+	configDir := filepath.Join("testdata", "with_keys")
 
 	// Migrate the old prefs file to the new vault.
-	require.NoError(t, migratePrefsToVault(vault, b))
+	require.NoError(t, migrateOldSettingsWithDir(configDir, vault))
 
-	// Check that the IMAP and SMTP prefs are migrated.
-	require.Equal(t, 2143, vault.GetIMAPPort())
-	require.Equal(t, 2025, vault.GetSMTPPort())
-	require.True(t, vault.GetSMTPSSL())
+	// Check Json Settings
+	validateJSONPrefs(t, vault)
 
-	// Check that the update channel is migrated.
-	require.True(t, vault.GetAutoUpdate())
-	require.Equal(t, updater.EarlyChannel, vault.GetUpdateChannel())
-	require.Equal(t, 0.4849529004202015, vault.GetUpdateRollout())
+	cert, key := vault.GetBridgeTLSCert()
+	// Check the keys were found and collected.
+	require.Equal(t, "-----BEGIN CERTIFICATE-----", string(cert))
+	require.Equal(t, "-----BEGIN RSA PRIVATE KEY-----", string(key))
+}
 
-	// Check that the app settings have been migrated.
-	require.False(t, vault.GetFirstStart())
-	require.True(t, vault.GetFirstStartGUI())
-	require.Equal(t, "blablabla", vault.GetColorScheme())
-	require.Equal(t, "2.3.0+git", vault.GetLastVersion().String())
-	require.True(t, vault.GetAutostart())
-
-	// Check that the other app settings have been migrated.
-	require.Equal(t, 16, vault.SyncWorkers())
-	require.Equal(t, 16, vault.SyncAttPool())
-	require.False(t, vault.GetProxyAllowed())
-	require.False(t, vault.GetShowAllMail())
-
-	// Check that the cookies have been migrated.
-	jar, err := cookiejar.New(nil)
+func TestMigratePrefsToVaultWithoutKeys(t *testing.T) {
+	// Create a new vault.
+	vault, corrupt, err := vault.New(t.TempDir(), t.TempDir(), []byte("my secret key"), async.NoopPanicHandler{})
 	require.NoError(t, err)
+	require.False(t, corrupt)
 
-	cookies, err := cookies.NewCookieJar(jar, vault)
-	require.NoError(t, err)
+	// load the old prefs file.
+	configDir := filepath.Join("testdata", "without_keys")
 
-	url, err := url.Parse("https://api.protonmail.ch")
-	require.NoError(t, err)
+	// Migrate the old prefs file to the new vault.
+	require.NoError(t, migrateOldSettingsWithDir(configDir, vault))
 
-	// There should be a cookie for the API.
-	require.NotEmpty(t, cookies.Cookies(url))
+	// Migrate the old prefs file to the new vault.
+	require.NoError(t, migrateOldSettingsWithDir(configDir, vault))
+
+	// Check Json Settings
+	validateJSONPrefs(t, vault)
+
+	// Check the keys were found and collected.
+	cert, key := vault.GetBridgeTLSCert()
+	require.NotEqual(t, []byte("-----BEGIN CERTIFICATE-----"), cert)
+	require.NotEqual(t, []byte("-----BEGIN RSA PRIVATE KEY-----"), key)
 }
 
 func TestKeychainMigration(t *testing.T) {
@@ -102,7 +98,7 @@ func TestKeychainMigration(t *testing.T) {
 		oldCacheDir := filepath.Join(tmpDir, "protonmail", "bridge")
 		require.NoError(t, os.MkdirAll(oldCacheDir, 0o700))
 
-		oldPrefs, err := os.ReadFile(filepath.Join("testdata", "prefs.json"))
+		oldPrefs, err := os.ReadFile(filepath.Join("testdata", "without_keys", "protonmail", "bridge", "prefs.json"))
 		require.NoError(t, err)
 
 		require.NoError(t, os.WriteFile(
@@ -178,7 +174,7 @@ func TestUserMigration(t *testing.T) {
 	token, err := crypto.RandomToken(32)
 	require.NoError(t, err)
 
-	v, corrupt, err := vault.New(settingsFolder, settingsFolder, token)
+	v, corrupt, err := vault.New(settingsFolder, settingsFolder, token, async.NoopPanicHandler{})
 	require.NoError(t, err)
 	require.False(t, corrupt)
 
@@ -197,3 +193,38 @@ func TestUserMigration(t *testing.T) {
 		require.Equal(t, vault.CombinedMode, u.AddressMode())
 	}))
 }
+
+func validateJSONPrefs(t *testing.T, vault *vault.Vault) {
+	// Check that the IMAP and SMTP prefs are migrated.
+	require.Equal(t, 2143, vault.GetIMAPPort())
+	require.Equal(t, 2025, vault.GetSMTPPort())
+	require.True(t, vault.GetSMTPSSL())
+
+	// Check that the update channel is migrated.
+	require.True(t, vault.GetAutoUpdate())
+	require.Equal(t, updater.EarlyChannel, vault.GetUpdateChannel())
+	require.Equal(t, 0.4849529004202015, vault.GetUpdateRollout())
+
+	// Check that the app settings have been migrated.
+	require.False(t, vault.GetFirstStart())
+	require.Equal(t, "blablabla", vault.GetColorScheme())
+	require.Equal(t, "2.3.0+git", vault.GetLastVersion().String())
+	require.True(t, vault.GetAutostart())
+
+	// Check that the other app settings have been migrated.
+	require.False(t, vault.GetProxyAllowed())
+	require.False(t, vault.GetShowAllMail())
+
+	// Check that the cookies have been migrated.
+	jar, err := cookiejar.New(nil)
+	require.NoError(t, err)
+
+	cookies, err := cookies.NewCookieJar(jar, vault)
+	require.NoError(t, err)
+
+	url, err := url.Parse("https://api.protonmail.ch")
+	require.NoError(t, err)
+
+	// There should be a cookie for the API.
+	require.NotEmpty(t, cookies.Cookies(url))
+}

internal/app/singleinstance.go

@@ -34,17 +34,17 @@ import (
 //
 // For macOS and Linux when already running version is older than this instance
 // it will kill old and continue with this new bridge (i.e. no error returned).
-func checkSingleInstance(lockFilePath string, curVersion *semver.Version) (*os.File, error) {
+func checkSingleInstance(settingPath, lockFilePath string, curVersion *semver.Version) (*os.File, error) {
 	if lock, err := singleinstance.CreateLockFile(lockFilePath); err == nil {
 		logrus.WithField("path", lockFilePath).Debug("Created lock file; no other instance is running")
 		return lock, nil
 	}
 
-	logrus.Debug("Failed to create lock file; another instance is running")
+	logrus.Warn("Failed to create lock file; another instance is running")
 
 	// We couldn't create the lock file, so another instance is probably running.
 	// Check if it's an older version of the app.
-	lastVersion, ok := focus.TryVersion()
+	lastVersion, ok := focus.TryVersion(settingPath)
 	if !ok {
 		return nil, fmt.Errorf("failed to determine version of running instance")
 	}

internal/app/testdata/with_keys/protonmail/bridge/cert.pem

@@ -0,0 +1 @@
+-----BEGIN CERTIFICATE-----

internal/app/testdata/with_keys/protonmail/bridge/key.pem

@@ -0,0 +1 @@
+-----BEGIN RSA PRIVATE KEY-----

internal/app/testdata/without_keys/protonmail/bridge/prefs.json

@@ -0,0 +1,31 @@
+{
+	"allow_proxy": "false",
+	"attachment_workers": "16",
+	"autostart": "true",
+	"autoupdate": "true",
+	"cache_compression": "true",
+	"cache_concurrent_read": "16",
+	"cache_concurrent_write": "16",
+	"cache_enabled": "true",
+	"cache_location": "/home/user/.config/protonmail/bridge/cache/c11/messages",
+	"cache_min_free_abs": "250000000",
+	"cache_min_free_rat": "",
+	"color_scheme": "blablabla",
+	"cookies": "{\"https://api.protonmail.ch\":[{\"Name\":\"Session-Id\",\"Value\":\"blablablablablablablablabla\",\"Path\":\"/\",\"Domain\":\"protonmail.ch\",\"Expires\":\"2023-02-19T00:20:40.269424437+01:00\",\"RawExpires\":\"\",\"MaxAge\":7776000,\"Secure\":true,\"HttpOnly\":true,\"SameSite\":0,\"Raw\":\"Session-Id=blablablablablablablablabla; Domain=protonmail.ch; Path=/; HttpOnly; Secure; Max-Age=7776000\",\"Unparsed\":null},{\"Name\":\"Tag\",\"Value\":\"default\",\"Path\":\"/\",\"Domain\":\"\",\"Expires\":\"2023-02-19T00:20:40.269428627+01:00\",\"RawExpires\":\"\",\"MaxAge\":7776000,\"Secure\":true,\"HttpOnly\":false,\"SameSite\":0,\"Raw\":\"Tag=default; Path=/; Secure; Max-Age=7776000\",\"Unparsed\":null}],\"https://protonmail.com\":[{\"Name\":\"Session-Id\",\"Value\":\"blablablablablablablablabla\",\"Path\":\"/\",\"Domain\":\"protonmail.com\",\"Expires\":\"2023-02-19T00:20:18.315084712+01:00\",\"RawExpires\":\"\",\"MaxAge\":7776000,\"Secure\":true,\"HttpOnly\":true,\"SameSite\":0,\"Raw\":\"Session-Id=Y3q2Mh-ClvqL6LWeYdfyPgAAABI; Domain=protonmail.com; Path=/; HttpOnly; Secure; Max-Age=7776000\",\"Unparsed\":null},{\"Name\":\"Tag\",\"Value\":\"redirect\",\"Path\":\"/\",\"Domain\":\"\",\"Expires\":\"2023-02-19T00:20:18.315087646+01:00\",\"RawExpires\":\"\",\"MaxAge\":7776000,\"Secure\":true,\"HttpOnly\":false,\"SameSite\":0,\"Raw\":\"Tag=redirect; Path=/; Secure; Max-Age=7776000\",\"Unparsed\":null}]}",
+	"fetch_workers": "16",
+	"first_time_start": "false",
+	"first_time_start_gui": "true",
+	"imap_workers": "16",
+	"is_all_mail_visible": "false",
+	"last_heartbeat": "325",
+	"last_used_version": "2.3.0+git",
+	"preferred_keychain": "secret-service",
+	"rebranding_migrated": "true",
+	"report_outgoing_email_without_encryption": "false",
+	"rollout": "0.4849529004202015",
+	"user_port_api": "1042",
+	"update_channel": "early",
+	"user_port_imap": "2143",
+	"user_port_smtp": "2025",
+	"user_ssl_smtp": "true"
+}

internal/app/vault.go

@@ -18,26 +18,24 @@
 package app
 
 import (
-	"encoding/base64"
 	"fmt"
 	"path"
 
-	"github.com/ProtonMail/gopenpgp/v2/crypto"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/certs"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/locations"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
 	"github.com/ProtonMail/proton-bridge/v3/pkg/keychain"
 	"github.com/sirupsen/logrus"
-	"golang.org/x/exp/slices"
 )
 
-func WithVault(locations *locations.Locations, fn func(*vault.Vault, bool, bool) error) error {
+func WithVault(locations *locations.Locations, panicHandler async.PanicHandler, fn func(*vault.Vault, bool, bool) error) error {
 	logrus.Debug("Creating vault")
 	defer logrus.Debug("Vault stopped")
 
 	// Create the encVault.
-	encVault, insecure, corrupt, err := newVault(locations)
+	encVault, insecure, corrupt, err := newVault(locations, panicHandler)
 	if err != nil {
 		return fmt.Errorf("could not create vault: %w", err)
 	}
@@ -51,7 +49,9 @@ func WithVault(locations *locations.Locations, fn func(*vault.Vault, bool, bool)
 	if installed := encVault.GetCertsInstalled(); !installed {
 		logrus.Debug("Installing certificates")
 
-		if err := certs.NewInstaller().InstallCert(encVault.GetBridgeTLSCert()); err != nil {
+		certPEM, _ := encVault.GetBridgeTLSCert()
+
+		if err := certs.NewInstaller().InstallCert(certPEM); err != nil {
 			return fmt.Errorf("failed to install certs: %w", err)
 		}
 
@@ -67,7 +67,7 @@ func WithVault(locations *locations.Locations, fn func(*vault.Vault, bool, bool)
 	return fn(encVault, insecure, corrupt)
 }
 
-func newVault(locations *locations.Locations) (*vault.Vault, bool, bool, error) {
+func newVault(locations *locations.Locations, panicHandler async.PanicHandler) (*vault.Vault, bool, bool, error) {
 	vaultDir, err := locations.ProvideSettingsPath()
 	if err != nil {
 		return nil, false, false, fmt.Errorf("could not get vault dir: %w", err)
@@ -80,7 +80,8 @@ func newVault(locations *locations.Locations) (*vault.Vault, bool, bool, error)
 		insecure bool
 	)
 
-	if key, err := getVaultKey(vaultDir); err != nil {
+	if key, err := loadVaultKey(vaultDir); err != nil {
+		logrus.WithError(err).Error("Could not load/create vault key")
 		insecure = true
 
 		// We store the insecure vault in a separate directory
@@ -89,12 +90,12 @@ func newVault(locations *locations.Locations) (*vault.Vault, bool, bool, error)
 		vaultKey = key
 	}
 
-	gluonDir, err := locations.ProvideGluonPath()
+	gluonCacheDir, err := locations.ProvideGluonCachePath()
 	if err != nil {
 		return nil, false, false, fmt.Errorf("could not provide gluon path: %w", err)
 	}
 
-	vault, corrupt, err := vault.New(vaultDir, gluonDir, vaultKey)
+	vault, corrupt, err := vault.New(vaultDir, gluonCacheDir, vaultKey, panicHandler)
 	if err != nil {
 		return nil, false, false, fmt.Errorf("could not create vault: %w", err)
 	}
@@ -102,42 +103,25 @@ func newVault(locations *locations.Locations) (*vault.Vault, bool, bool, error)
 	return vault, insecure, corrupt, nil
 }
 
-func getVaultKey(vaultDir string) ([]byte, error) {
+func loadVaultKey(vaultDir string) ([]byte, error) {
 	helper, err := vault.GetHelper(vaultDir)
 	if err != nil {
 		return nil, fmt.Errorf("could not get keychain helper: %w", err)
 	}
 
-	keychain, err := keychain.NewKeychain(helper, constants.KeyChainName)
+	kc, err := keychain.NewKeychain(helper, constants.KeyChainName)
 	if err != nil {
 		return nil, fmt.Errorf("could not create keychain: %w", err)
 	}
 
-	secrets, err := keychain.List()
+	has, err := vault.HasVaultKey(kc)
 	if err != nil {
-		return nil, fmt.Errorf("could not list keychain: %w", err)
+		return nil, fmt.Errorf("could not check for vault key: %w", err)
 	}
 
-	if !slices.Contains(secrets, vaultSecretName) {
-		tok, err := crypto.RandomToken(32)
-		if err != nil {
-			return nil, fmt.Errorf("could not generate random token: %w", err)
-		}
-
-		if err := keychain.Put(vaultSecretName, base64.StdEncoding.EncodeToString(tok)); err != nil {
-			return nil, fmt.Errorf("could not put keychain item: %w", err)
-		}
+	if has {
+		return vault.GetVaultKey(kc)
 	}
 
-	_, keyEnc, err := keychain.Get(vaultSecretName)
-	if err != nil {
-		return nil, fmt.Errorf("could not get keychain item: %w", err)
-	}
-
-	keyDec, err := base64.StdEncoding.DecodeString(keyEnc)
-	if err != nil {
-		return nil, fmt.Errorf("could not decode keychain item: %w", err)
-	}
-
-	return keyDec, nil
+	return vault.NewVaultKey(kc)
 }

internal/async/context.go

@@ -1,82 +0,0 @@
-// Copyright (c) 2023 Proton AG
-//
-// This file is part of Proton Mail Bridge.
-//
-// Proton Mail Bridge is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Proton Mail Bridge is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Proton Mail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package async
-
-import (
-	"context"
-	"sync"
-)
-
-// Abortable collects groups of functions that can be aborted by calling Abort.
-type Abortable struct {
-	abortFunc []context.CancelFunc
-	abortLock sync.RWMutex
-}
-
-func (a *Abortable) Do(ctx context.Context, fn func(context.Context)) {
-	fn(a.newCancelCtx(ctx))
-}
-
-func (a *Abortable) Abort() {
-	a.abortLock.RLock()
-	defer a.abortLock.RUnlock()
-
-	for _, fn := range a.abortFunc {
-		fn()
-	}
-}
-
-func (a *Abortable) newCancelCtx(ctx context.Context) context.Context {
-	a.abortLock.Lock()
-	defer a.abortLock.Unlock()
-
-	ctx, cancel := context.WithCancel(ctx)
-
-	a.abortFunc = append(a.abortFunc, cancel)
-
-	return ctx
-}
-
-// RangeContext iterates over the given channel until the context is canceled or the
-// channel is closed.
-func RangeContext[T any](ctx context.Context, ch <-chan T, fn func(T)) {
-	for {
-		select {
-		case v, ok := <-ch:
-			if !ok {
-				return
-			}
-
-			fn(v)
-
-		case <-ctx.Done():
-			return
-		}
-	}
-}
-
-// ForwardContext forwards all values from the src channel to the dst channel until the
-// context is canceled or the src channel is closed.
-func ForwardContext[T any](ctx context.Context, dst chan<- T, src <-chan T) {
-	RangeContext(ctx, src, func(v T) {
-		select {
-		case dst <- v:
-		case <-ctx.Done():
-		}
-	})
-}

internal/async/group.go

@@ -1,233 +0,0 @@
-// Copyright (c) 2023 Proton AG
-//
-// This file is part of Proton Mail Bridge.
-//
-// Proton Mail Bridge is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Proton Mail Bridge is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Proton Mail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package async
-
-import (
-	"context"
-	"math/rand"
-	"sync"
-	"time"
-)
-
-type PanicHandler interface {
-	HandlePanic()
-}
-
-// Group is forked and improved version of "github.com/bradenaw/juniper/xsync.Group".
-//
-// It manages a group of goroutines. The main change to original is posibility
-// to wait passed function to finish without canceling it's context and adding
-// PanicHandler.
-type Group struct {
-	baseCtx context.Context
-	ctx     context.Context
-	jobCtx  context.Context
-	cancel  context.CancelFunc
-	finish  context.CancelFunc
-	wg      sync.WaitGroup
-
-	panicHandler PanicHandler
-}
-
-// NewGroup returns a Group ready for use. The context passed to any of the f functions will be a
-// descendant of ctx.
-func NewGroup(ctx context.Context, panicHandler PanicHandler) *Group {
-	bgCtx, cancel := context.WithCancel(ctx)
-	jobCtx, finish := context.WithCancel(ctx)
-	return &Group{
-		baseCtx:      ctx,
-		ctx:          bgCtx,
-		jobCtx:       jobCtx,
-		cancel:       cancel,
-		finish:       finish,
-		panicHandler: panicHandler,
-	}
-}
-
-// Once calls f once from another goroutine.
-func (g *Group) Once(f func(ctx context.Context)) {
-	g.wg.Add(1)
-	go func() {
-		defer g.handlePanic()
-
-		f(g.ctx)
-		g.wg.Done()
-	}()
-}
-
-// jitterDuration returns a random duration in [d - jitter, d + jitter].
-func jitterDuration(d time.Duration, jitter time.Duration) time.Duration {
-	return d + time.Duration(float64(jitter)*((rand.Float64()*2)-1)) //nolint:gosec
-}
-
-// Periodic spawns a goroutine that calls f once per interval +/- jitter.
-func (g *Group) Periodic(
-	interval time.Duration,
-	jitter time.Duration,
-	f func(ctx context.Context),
-) {
-	g.wg.Add(1)
-	go func() {
-		defer g.handlePanic()
-
-		defer g.wg.Done()
-
-		t := time.NewTimer(jitterDuration(interval, jitter))
-		defer t.Stop()
-
-		for {
-			if g.ctx.Err() != nil {
-				return
-			}
-
-			select {
-			case <-g.jobCtx.Done():
-				return
-			case <-t.C:
-			}
-
-			t.Reset(jitterDuration(interval, jitter))
-			f(g.ctx)
-		}
-	}()
-}
-
-// Trigger spawns a goroutine which calls f whenever the returned function is called. If f is
-// already running when triggered, f will run again immediately when it finishes.
-func (g *Group) Trigger(f func(ctx context.Context)) func() {
-	c := make(chan struct{}, 1)
-	g.wg.Add(1)
-	go func() {
-		defer g.handlePanic()
-
-		defer g.wg.Done()
-
-		for {
-			if g.ctx.Err() != nil {
-				return
-			}
-			select {
-			case <-g.jobCtx.Done():
-				return
-			case <-c:
-			}
-			f(g.ctx)
-		}
-	}()
-
-	return func() {
-		select {
-		case c <- struct{}{}:
-		default:
-		}
-	}
-}
-
-// PeriodicOrTrigger spawns a goroutine which calls f whenever the returned function is called.  If
-// f is already running when triggered, f will run again immediately when it finishes. Also calls f
-// when it has been interval+/-jitter since the last trigger.
-func (g *Group) PeriodicOrTrigger(
-	interval time.Duration,
-	jitter time.Duration,
-	f func(ctx context.Context),
-) func() {
-	c := make(chan struct{}, 1)
-	g.wg.Add(1)
-	go func() {
-		defer g.handlePanic()
-
-		defer g.wg.Done()
-
-		t := time.NewTimer(jitterDuration(interval, jitter))
-		defer t.Stop()
-
-		for {
-			if g.ctx.Err() != nil {
-				return
-			}
-			select {
-			case <-g.jobCtx.Done():
-				return
-			case <-t.C:
-				t.Reset(jitterDuration(interval, jitter))
-			case <-c:
-				if !t.Stop() {
-					<-t.C
-				}
-				t.Reset(jitterDuration(interval, jitter))
-			}
-			f(g.ctx)
-		}
-	}()
-
-	return func() {
-		select {
-		case c <- struct{}{}:
-		default:
-		}
-	}
-}
-
-func (g *Group) resetCtx() {
-	g.jobCtx, g.finish = context.WithCancel(g.baseCtx)
-	g.ctx, g.cancel = context.WithCancel(g.baseCtx)
-}
-
-// Cancel is send to all of the spawn goroutines and ends periodic
-// or trigger routines.
-func (g *Group) Cancel() {
-	g.cancel()
-	g.finish()
-	g.resetCtx()
-}
-
-// Finish will ends all periodic or polls routines. It will let
-// currently running functions to finish (cancel is not sent).
-//
-// It is not safe to call Wait concurrently with any other method on g.
-func (g *Group) Finish() {
-	g.finish()
-	g.jobCtx, g.finish = context.WithCancel(g.baseCtx)
-}
-
-// CancelAndWait cancels the context passed to any of the spawned goroutines and waits for all spawned
-// goroutines to exit.
-//
-// It is not safe to call Wait concurrently with any other method on g.
-func (g *Group) CancelAndWait() {
-	g.finish()
-	g.cancel()
-	g.wg.Wait()
-	g.resetCtx()
-}
-
-// WaitToFinish will ends all periodic or polls routines. It will wait for
-// currently running functions to finish (cancel is not sent).
-//
-// It is not safe to call Wait concurrently with any other method on g.
-func (g *Group) WaitToFinish() {
-	g.finish()
-	g.wg.Wait()
-	g.jobCtx, g.finish = context.WithCancel(g.baseCtx)
-}
-
-func (g *Group) handlePanic() {
-	if g.panicHandler != nil {
-		g.panicHandler.HandlePanic()
-	}
-}

internal/bridge/api.go

@@ -21,6 +21,7 @@ import (
 	"net/http"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/go-proton-api"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/sirupsen/logrus"
@@ -32,14 +33,14 @@ func defaultAPIOptions(
 	version *semver.Version,
 	cookieJar http.CookieJar,
 	transport http.RoundTripper,
-	poolSize int,
+	panicHandler async.PanicHandler,
 ) []proton.Option {
 	return []proton.Option{
 		proton.WithHostURL(apiURL),
 		proton.WithAppVersion(constants.AppVersion(version.Original())),
 		proton.WithCookieJar(cookieJar),
 		proton.WithTransport(transport),
-		proton.WithAttPoolSize(poolSize),
 		proton.WithLogger(logrus.StandardLogger()),
+		proton.WithPanicHandler(panicHandler),
 	}
 }

internal/bridge/api_default.go

@@ -23,6 +23,7 @@ import (
 	"net/http"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/go-proton-api"
 )
 
@@ -32,7 +33,7 @@ func newAPIOptions(
 	version *semver.Version,
 	cookieJar http.CookieJar,
 	transport http.RoundTripper,
-	poolSize int,
+	panicHandler async.PanicHandler,
 ) []proton.Option {
-	return defaultAPIOptions(apiURL, version, cookieJar, transport, poolSize)
+	return defaultAPIOptions(apiURL, version, cookieJar, transport, panicHandler)
 }

internal/bridge/api_qa.go

@@ -24,6 +24,7 @@ import (
 	"os"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/go-proton-api"
 )
 
@@ -33,9 +34,9 @@ func newAPIOptions(
 	version *semver.Version,
 	cookieJar http.CookieJar,
 	transport http.RoundTripper,
-	poolSize int,
+	panicHandler async.PanicHandler,
 ) []proton.Option {
-	opt := defaultAPIOptions(apiURL, version, cookieJar, transport, poolSize)
+	opt := defaultAPIOptions(apiURL, version, cookieJar, transport, panicHandler)
 
 	if host := os.Getenv("BRIDGE_API_HOST"); host != "" {
 		opt = append(opt, proton.WithHostURL(host))

internal/bridge/bridge.go

@@ -21,6 +21,7 @@ package bridge
 import (
 	"context"
 	"crypto/tls"
+	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -29,15 +30,17 @@ import (
 
 	"github.com/Masterminds/semver/v3"
 	"github.com/ProtonMail/gluon"
+	"github.com/ProtonMail/gluon/async"
 	imapEvents "github.com/ProtonMail/gluon/events"
+	"github.com/ProtonMail/gluon/imap"
 	"github.com/ProtonMail/gluon/reporter"
 	"github.com/ProtonMail/gluon/watcher"
 	"github.com/ProtonMail/go-proton-api"
-	"github.com/ProtonMail/proton-bridge/v3/internal/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/focus"
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
+	"github.com/ProtonMail/proton-bridge/v3/internal/sentry"
 	"github.com/ProtonMail/proton-bridge/v3/internal/user"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
 	"github.com/bradenaw/juniper/xslices"
@@ -90,8 +93,8 @@ type Bridge struct {
 	// locator is the bridge's locator.
 	locator Locator
 
-	// crashHandler
-	crashHandler async.PanicHandler
+	// panicHandler
+	panicHandler async.PanicHandler
 
 	// reporter
 	reporter reporter.Reporter
@@ -108,6 +111,12 @@ type Bridge struct {
 	logIMAPServer bool
 	logSMTP       bool
 
+	// These two variables keep track of the startup values for the two settings of the same name.
+	// They are updated in the vault on startup so that we're sure they're updated in case of kill/crash,
+	// but we need to keep their initial value for the current instance of bridge.
+	firstStart  bool
+	lastVersion *semver.Version
+
 	// tasks manages the bridge's goroutines.
 	tasks *async.Group
 
@@ -116,10 +125,12 @@ type Bridge struct {
 
 	// goUpdate triggers a check/install of updates.
 	goUpdate func()
+
+	uidValidityGenerator imap.UIDValidityGenerator
 }
 
 // New creates a new bridge.
-func New( //nolint:funlen
+func New(
 	locator Locator, // the locator to provide paths to store data
 	vault *vault.Vault, // the bridge's encrypted data store
 	autostarter Autostarter, // the autostarter to manage autostart settings
@@ -132,17 +143,18 @@ func New( //nolint:funlen
 	tlsReporter TLSReporter, // the TLS reporter to report TLS errors
 	roundTripper http.RoundTripper, // the round tripper to use for API requests
 	proxyCtl ProxyController, // the DoH controller
-	crashHandler async.PanicHandler,
+	panicHandler async.PanicHandler,
 	reporter reporter.Reporter,
+	uidValidityGenerator imap.UIDValidityGenerator,
 
 	logIMAPClient, logIMAPServer bool, // whether to log IMAP client/server activity
 	logSMTP bool, // whether to log SMTP activity
 ) (*Bridge, <-chan events.Event, error) {
 	// api is the user's API manager.
-	api := proton.New(newAPIOptions(apiURL, curVersion, cookieJar, roundTripper, vault.SyncAttPool())...)
+	api := proton.New(newAPIOptions(apiURL, curVersion, cookieJar, roundTripper, panicHandler)...)
 
 	// tasks holds all the bridge's background tasks.
-	tasks := async.NewGroup(context.Background(), crashHandler)
+	tasks := async.NewGroup(context.Background(), panicHandler)
 
 	// imapEventCh forwards IMAP events from gluon instances to the bridge for processing.
 	imapEventCh := make(chan imapEvents.Event)
@@ -157,12 +169,13 @@ func New( //nolint:funlen
 		autostarter,
 		updater,
 		curVersion,
-		crashHandler,
+		panicHandler,
 		reporter,
 
 		api,
 		identifier,
 		proxyCtl,
+		uidValidityGenerator,
 		logIMAPClient, logIMAPServer, logSMTP,
 	)
 	if err != nil {
@@ -177,22 +190,9 @@ func New( //nolint:funlen
 		return nil, nil, fmt.Errorf("failed to initialize bridge: %w", err)
 	}
 
-	// Start serving IMAP.
-	if err := bridge.serveIMAP(); err != nil {
-		logrus.WithError(err).Error("IMAP error")
-		bridge.PushError(ErrServeIMAP)
-	}
-
-	// Start serving SMTP.
-	if err := bridge.serveSMTP(); err != nil {
-		logrus.WithError(err).Error("SMTP error")
-		bridge.PushError(ErrServeSMTP)
-	}
-
 	return bridge, eventCh, nil
 }
 
-// nolint:funlen
 func newBridge(
 	tasks *async.Group,
 	imapEventCh chan imapEvents.Event,
@@ -202,12 +202,13 @@ func newBridge(
 	autostarter Autostarter,
 	updater Updater,
 	curVersion *semver.Version,
-	crashHandler async.PanicHandler,
+	panicHandler async.PanicHandler,
 	reporter reporter.Reporter,
 
 	api *proton.Manager,
 	identifier Identifier,
 	proxyCtl ProxyController,
+	uidValidityGenerator imap.UIDValidityGenerator,
 
 	logIMAPClient, logIMAPServer, logSMTP bool,
 ) (*Bridge, error) {
@@ -216,13 +217,29 @@ func newBridge(
 		return nil, fmt.Errorf("failed to load TLS config: %w", err)
 	}
 
-	gluonDir, err := getGluonDir(vault)
+	gluonCacheDir, err := getGluonDir(vault)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get Gluon directory: %w", err)
 	}
 
+	gluonDataDir, err := locator.ProvideGluonDataPath()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get Gluon Database directory: %w", err)
+	}
+
+	firstStart := vault.GetFirstStart()
+	if err := vault.SetFirstStart(false); err != nil {
+		return nil, fmt.Errorf("failed to save first start indicator: %w", err)
+	}
+
+	lastVersion := vault.GetLastVersion()
+	if err := vault.SetLastVersion(curVersion); err != nil {
+		return nil, fmt.Errorf("failed to save last version indicator: %w", err)
+	}
+
 	imapServer, err := newIMAPServer(
-		gluonDir,
+		gluonCacheDir,
+		gluonDataDir,
 		curVersion,
 		tlsConfig,
 		reporter,
@@ -230,12 +247,14 @@ func newBridge(
 		logIMAPServer,
 		imapEventCh,
 		tasks,
+		uidValidityGenerator,
+		panicHandler,
 	)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create IMAP server: %w", err)
 	}
 
-	focusService, err := focus.NewService(curVersion)
+	focusService, err := focus.NewService(locator, curVersion, panicHandler)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create focus service: %w", err)
 	}
@@ -261,7 +280,7 @@ func newBridge(
 		newVersion:     curVersion,
 		newVersionLock: safe.NewRWMutex(),
 
-		crashHandler: crashHandler,
+		panicHandler: panicHandler,
 		reporter:     reporter,
 
 		focusService: focusService,
@@ -272,7 +291,12 @@ func newBridge(
 		logIMAPServer: logIMAPServer,
 		logSMTP:       logSMTP,
 
+		firstStart:  firstStart,
+		lastVersion: lastVersion,
+
 		tasks: tasks,
+
+		uidValidityGenerator: uidValidityGenerator,
 	}
 
 	bridge.smtpServer = newSMTPServer(bridge, tlsConfig, logSMTP)
@@ -280,7 +304,6 @@ func newBridge(
 	return bridge, nil
 }
 
-// nolint:funlen
 func (bridge *Bridge) init(tlsReporter TLSReporter) error {
 	// Enable or disable the proxy at startup.
 	if bridge.vault.GetProxyAllowed() {
@@ -349,15 +372,32 @@ func (bridge *Bridge) init(tlsReporter TLSReporter) error {
 		})
 	})
 
-	// Attempt to lazy load users when triggered.
-	bridge.goLoad = bridge.tasks.Trigger(func(ctx context.Context) {
-		logrus.Info("Loading users")
+	// We need to load users before we can start the IMAP and SMTP servers.
+	// We must only start the servers once.
+	var once sync.Once
 
+	// Attempt to load users from the vault when triggered.
+	bridge.goLoad = bridge.tasks.Trigger(func(ctx context.Context) {
 		if err := bridge.loadUsers(ctx); err != nil {
 			logrus.WithError(err).Error("Failed to load users")
-		} else {
-			bridge.publish(events.AllUsersLoaded{})
+			if netErr := new(proton.NetError); !errors.As(err, &netErr) {
+				sentry.ReportError(bridge.reporter, "Failed to load users", err)
+			}
+			return
 		}
+
+		bridge.publish(events.AllUsersLoaded{})
+
+		// Once all users have been loaded, start the bridge's IMAP and SMTP servers.
+		once.Do(func() {
+			if err := bridge.serveIMAP(); err != nil {
+				logrus.WithError(err).Error("Failed to start IMAP server")
+			}
+
+			if err := bridge.serveSMTP(); err != nil {
+				logrus.WithError(err).Error("Failed to start SMTP server")
+			}
+		})
 	})
 	defer bridge.goLoad()
 
@@ -435,11 +475,6 @@ func (bridge *Bridge) Close(ctx context.Context) {
 	}
 
 	bridge.watchers = nil
-
-	// Save the last version of bridge that was run.
-	if err := bridge.vault.SetLastVersion(bridge.curVersion); err != nil {
-		logrus.WithError(err).Error("Failed to save last version")
-	}
 }
 
 func (bridge *Bridge) publish(event events.Event) {
@@ -461,7 +496,7 @@ func (bridge *Bridge) addWatcher(ofType ...events.Event) *watcher.Watcher[events
 	bridge.watchersLock.Lock()
 	defer bridge.watchersLock.Unlock()
 
-	watcher := watcher.New(ofType...)
+	watcher := watcher.New(bridge.panicHandler, ofType...)
 
 	bridge.watchers = append(bridge.watchers, watcher)
 
@@ -522,7 +557,7 @@ func (bridge *Bridge) onStatusDown(ctx context.Context) {
 }
 
 func loadTLSConfig(vault *vault.Vault) (*tls.Config, error) {
-	cert, err := tls.X509KeyPair(vault.GetBridgeTLSCert(), vault.GetBridgeTLSKey())
+	cert, err := tls.X509KeyPair(vault.GetBridgeTLSCert())
 	if err != nil {
 		return nil, err
 	}

internal/bridge/bridge_test.go

@@ -21,20 +21,24 @@ import (
 	"context"
 	"crypto/tls"
 	"fmt"
+	"net"
 	"net/http"
 	"os"
-	"runtime"
+	"path/filepath"
 	"sync"
 	"testing"
 	"time"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
+	"github.com/ProtonMail/gluon/imap"
 	"github.com/ProtonMail/go-proton-api"
 	"github.com/ProtonMail/go-proton-api/server"
 	"github.com/ProtonMail/go-proton-api/server/backend"
 	"github.com/ProtonMail/gopenpgp/v2/crypto"
 	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
 	"github.com/ProtonMail/proton-bridge/v3/internal/certs"
+	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/cookies"
 	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/focus"
@@ -45,6 +49,7 @@ import (
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
 	"github.com/ProtonMail/proton-bridge/v3/tests"
 	"github.com/bradenaw/juniper/xslices"
+	"github.com/emersion/go-imap/client"
 	"github.com/stretchr/testify/require"
 )
 
@@ -119,8 +124,11 @@ func TestBridge_Focus(t *testing.T) {
 			raiseCh, done := bridge.GetEvents(events.Raise{})
 			defer done()
 
+			settingsFolder, err := locator.ProvideSettingsPath()
+			require.NoError(t, err)
+
 			// Simulate a focus event.
-			focus.TryRaise()
+			focus.TryRaise(settingsFolder)
 
 			// Wait for the event.
 			require.IsType(t, events.Raise{}, <-raiseCh)
@@ -349,7 +357,7 @@ func TestBridge_BadVaultKey(t *testing.T) {
 	})
 }
 
-func TestBridge_MissingGluonDir(t *testing.T) {
+func TestBridge_MissingGluonStore(t *testing.T) {
 	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
 		var gluonDir string
 
@@ -361,13 +369,36 @@ func TestBridge_MissingGluonDir(t *testing.T) {
 			require.NoError(t, bridge.SetGluonDir(ctx, t.TempDir()))
 
 			// Get the gluon dir.
-			gluonDir = bridge.GetGluonDir()
+			gluonDir = bridge.GetGluonCacheDir()
 		})
 
 		// The user removes the gluon dir while bridge is not running.
 		require.NoError(t, os.RemoveAll(gluonDir))
 
-		// Bridge starts but can't find the gluon dir; there should be no error.
+		// Bridge starts but can't find the gluon store dir; there should be no error.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			// ...
+		})
+	})
+}
+
+func TestBridge_MissingGluonDatabase(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
+		var gluonDir string
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			_, err := bridge.LoginFull(context.Background(), username, password, nil, nil)
+			require.NoError(t, err)
+
+			// Get the gluon dir.
+			gluonDir, err = bridge.GetGluonDataDir()
+			require.NoError(t, err)
+		})
+
+		// The user removes the gluon dir while bridge is not running.
+		require.NoError(t, os.RemoveAll(gluonDir))
+
+		// Bridge starts but can't find the gluon database dir; there should be no error.
 		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
 			// ...
 		})
@@ -456,41 +487,158 @@ func TestBridge_FactoryReset(t *testing.T) {
 	})
 }
 
-func TestBridge_ChangeCacheDirectoryFailsBetweenDifferentVolumes(t *testing.T) {
-	if runtime.GOOS != "windows" {
-		t.Skip("Test only necessary on windows")
-	}
+func TestBridge_InitGluonDirectory(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(b *bridge.Bridge, mocks *bridge.Mocks) {
+			configDir, err := b.GetGluonDataDir()
+			require.NoError(t, err)
+
+			_, err = os.ReadDir(bridge.ApplyGluonCachePathSuffix(b.GetGluonCacheDir()))
+			require.False(t, os.IsNotExist(err))
+
+			_, err = os.ReadDir(bridge.ApplyGluonConfigPathSuffix(configDir))
+			require.False(t, os.IsNotExist(err))
+		})
+	})
+}
+
+func TestBridge_LoginFailed(t *testing.T) {
 	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
 		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
-			// Change directory
-			err := bridge.SetGluonDir(ctx, "XX:\\")
-			require.Error(t, err)
+			failCh, done := chToType[events.Event, events.IMAPLoginFailed](bridge.GetEvents(events.IMAPLoginFailed{}))
+			defer done()
+
+			imapClient, err := client.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetIMAPPort())))
+			require.NoError(t, err)
+
+			require.Error(t, imapClient.Login("badUser", "badPass"))
+			require.Equal(t, "badUser", (<-failCh).Username)
 		})
 	})
 }
 
 func TestBridge_ChangeCacheDirectory(t *testing.T) {
 	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
-		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+		userID, addrID, err := s.CreateUser("imap", password)
+		require.NoError(t, err)
+
+		labelID, err := s.CreateLabel(userID, "folder", "", proton.LabelTypeFolder)
+		require.NoError(t, err)
+
+		withClient(ctx, t, s, "imap", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, labelID, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(b *bridge.Bridge, mocks *bridge.Mocks) {
 			newCacheDir := t.TempDir()
-			currentCacheDir := bridge.GetGluonDir()
+			currentCacheDir := b.GetGluonCacheDir()
+			configDir, err := b.GetGluonDataDir()
+			require.NoError(t, err)
 
 			// Login the user.
-			userID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+			syncCh, done := chToType[events.Event, events.SyncFinished](b.GetEvents(events.SyncFinished{}))
+			defer done()
+			userID, err := b.LoginFull(ctx, "imap", password, nil, nil)
 			require.NoError(t, err)
+			require.Equal(t, userID, (<-syncCh).UserID)
 
 			// The user is now connected.
-			require.Equal(t, []string{userID}, bridge.GetUserIDs())
-			require.Equal(t, []string{userID}, getConnectedUserIDs(t, bridge))
+			require.Equal(t, []string{userID}, b.GetUserIDs())
+			require.Equal(t, []string{userID}, getConnectedUserIDs(t, b))
 
 			// Change directory
-			err = bridge.SetGluonDir(ctx, newCacheDir)
+			err = b.SetGluonDir(ctx, newCacheDir)
 			require.NoError(t, err)
 
-			_, err = os.ReadDir(currentCacheDir)
+			// Old store should no more exists.
+			_, err = os.ReadDir(bridge.ApplyGluonCachePathSuffix(currentCacheDir))
 			require.True(t, os.IsNotExist(err))
+			// Database should not have changed.
+			_, err = os.ReadDir(bridge.ApplyGluonConfigPathSuffix(configDir))
+			require.False(t, os.IsNotExist(err))
 
-			require.Equal(t, newCacheDir, bridge.GetGluonDir())
+			// New path should have Gluon sub-folder.
+			require.Equal(t, filepath.Join(newCacheDir, "gluon"), b.GetGluonCacheDir())
+			// And store should be inside it.
+			_, err = os.ReadDir(bridge.ApplyGluonCachePathSuffix(b.GetGluonCacheDir()))
+			require.False(t, os.IsNotExist(err))
+
+			// We should be able to fetch.
+			info, err := b.GetUserInfo(userID)
+			require.NoError(t, err)
+			require.True(t, info.State == bridge.Connected)
+
+			client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, b.GetIMAPPort()))
+			require.NoError(t, err)
+			require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+			defer func() { _ = client.Logout() }()
+
+			status, err := client.Select(`Folders/folder`, false)
+			require.NoError(t, err)
+			require.Equal(t, uint32(10), status.Messages)
+		})
+	})
+}
+
+func TestBridge_ChangeAddressOrder(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, vaultKey []byte) {
+		// Create a user.
+		userID, addrID, err := s.CreateUser("imap", password)
+		require.NoError(t, err)
+
+		// Create a second address for the user.
+		aliasID, err := s.CreateAddress(userID, "alias@"+s.GetDomain(), password)
+		require.NoError(t, err)
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "imap", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(b *bridge.Bridge, mocks *bridge.Mocks) {
+			// Log the user in with its first address.
+			syncCh, done := chToType[events.Event, events.SyncFinished](b.GetEvents(events.SyncFinished{}))
+			defer done()
+			userID, err := b.LoginFull(ctx, "imap", password, nil, nil)
+			require.NoError(t, err)
+			require.Equal(t, userID, (<-syncCh).UserID)
+
+			// We should see 10 messages in the inbox.
+			info, err := b.GetUserInfo(userID)
+			require.NoError(t, err)
+			require.True(t, info.State == bridge.Connected)
+
+			client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, b.GetIMAPPort()))
+			require.NoError(t, err)
+			require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+			defer func() { _ = client.Logout() }()
+
+			status, err := client.Select(`Inbox`, false)
+			require.NoError(t, err)
+			require.Equal(t, uint32(10), status.Messages)
+		})
+
+		// Make the second address the primary one.
+		withClient(ctx, t, s, "imap", password, func(ctx context.Context, c *proton.Client) {
+			require.NoError(t, c.OrderAddresses(ctx, proton.OrderAddressesReq{AddressIDs: []string{aliasID, addrID}}))
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, vaultKey, func(b *bridge.Bridge, mocks *bridge.Mocks) {
+			// We should still see 10 messages in the inbox.
+			info, err := b.GetUserInfo(userID)
+			require.NoError(t, err)
+			require.True(t, info.State == bridge.Connected)
+
+			client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, b.GetIMAPPort()))
+			require.NoError(t, err)
+			require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+			defer func() { _ = client.Logout() }()
+
+			require.Eventually(t, func() bool {
+				status, err := client.Select(`Inbox`, false)
+				require.NoError(t, err)
+				return status.Messages == 10
+			}, 5*time.Second, 100*time.Millisecond)
 		})
 	})
 }
@@ -522,20 +670,28 @@ func withEnv(t *testing.T, tests func(context.Context, *server.Server, *proton.N
 	tests(ctx, server, netCtl, locations, vaultKey)
 }
 
+// withMocks creates the mock objects used in the tests.
+func withMocks(t *testing.T, tests func(*bridge.Mocks)) {
+	mocks := bridge.NewMocks(t, v2_3_0, v2_3_0)
+	defer mocks.Close()
+
+	tests(mocks)
+}
+
+// Needs to be global to survive bridge shutdown/startup in unit tests as they happen to fast.
+var testUIDValidityGenerator = imap.DefaultEpochUIDValidityGenerator()
+
 // withBridge creates a new bridge which points to the given API URL and uses the given keychain, and closes it when done.
-func withBridge(
+func withBridgeNoMocks(
 	ctx context.Context,
 	t *testing.T,
+	mocks *bridge.Mocks,
 	apiURL string,
 	netCtl *proton.NetCtl,
 	locator bridge.Locator,
 	vaultKey []byte,
-	tests func(*bridge.Bridge, *bridge.Mocks),
+	tests func(*bridge.Bridge),
 ) {
-	// Create the mock objects used in the tests.
-	mocks := bridge.NewMocks(t, v2_3_0, v2_3_0)
-	defer mocks.Close()
-
 	// Bridge will disable the proxy by default at startup.
 	mocks.ProxyCtl.EXPECT().DisallowProxy()
 
@@ -544,7 +700,7 @@ func withBridge(
 	require.NoError(t, err)
 
 	// Create the vault.
-	vault, _, err := vault.New(vaultDir, t.TempDir(), vaultKey)
+	vault, _, err := vault.New(vaultDir, t.TempDir(), vaultKey, async.NoopPanicHandler{})
 	require.NoError(t, err)
 
 	// Create a new cookie jar.
@@ -570,6 +726,7 @@ func withBridge(
 		mocks.ProxyCtl,
 		mocks.CrashHandler,
 		mocks.Reporter,
+		testUIDValidityGenerator,
 
 		// The logging stuff.
 		os.Getenv("BRIDGE_LOG_IMAP_CLIENT") == "1",
@@ -581,6 +738,10 @@ func withBridge(
 
 	// Wait for bridge to finish loading users.
 	waitForEvent(t, eventCh, events.AllUsersLoaded{})
+	// Wait for bridge to start the IMAP server.
+	waitForEvent(t, eventCh, events.IMAPServerReady{})
+	// Wait for bridge to start the SMTP server.
+	waitForEvent(t, eventCh, events.SMTPServerReady{})
 
 	// Set random IMAP and SMTP ports for the tests.
 	require.NoError(t, bridge.SetIMAPPort(0))
@@ -590,10 +751,27 @@ func withBridge(
 	defer bridge.Close(ctx)
 
 	// Use the bridge.
-	tests(bridge, mocks)
+	tests(bridge)
 }
 
-func waitForEvent[T any](t *testing.T, eventCh <-chan events.Event, wantEvent T) {
+// withBridge creates a new bridge which points to the given API URL and uses the given keychain, and closes it when done.
+func withBridge(
+	ctx context.Context,
+	t *testing.T,
+	apiURL string,
+	netCtl *proton.NetCtl,
+	locator bridge.Locator,
+	vaultKey []byte,
+	tests func(*bridge.Bridge, *bridge.Mocks),
+) {
+	withMocks(t, func(mocks *bridge.Mocks) {
+		withBridgeNoMocks(ctx, t, mocks, apiURL, netCtl, locator, vaultKey, func(bridge *bridge.Bridge) {
+			tests(bridge, mocks)
+		})
+	})
+}
+
+func waitForEvent[T any](t *testing.T, eventCh <-chan events.Event, _ T) {
 	t.Helper()
 
 	for event := range eventCh {

internal/bridge/bug_report.go

@@ -37,7 +37,7 @@ const (
 	MaxCompressedFilesCount = 6
 )
 
-func (bridge *Bridge) ReportBug(ctx context.Context, osType, osVersion, description, username, email, client string, attachLogs bool) error { //nolint:funlen
+func (bridge *Bridge) ReportBug(ctx context.Context, osType, osVersion, description, username, email, client string, attachLogs bool) error {
 	var account string
 
 	if info, err := bridge.QueryUserInfo(username); err == nil {

internal/bridge/errors.go

@@ -22,10 +22,7 @@ import "errors"
 var (
 	ErrVaultInsecure = errors.New("the vault is insecure")
 	ErrVaultCorrupt  = errors.New("the vault is corrupt")
-
-	ErrServeIMAP    = errors.New("failed to serve IMAP")
-	ErrServeSMTP    = errors.New("failed to serve SMTP")
-	ErrWatchUpdates = errors.New("failed to watch for updates")
+	ErrWatchUpdates  = errors.New("failed to watch for updates")
 
 	ErrNoSuchUser          = errors.New("no such user")
 	ErrUserAlreadyExists   = errors.New("user already exists")

internal/bridge/files.go

@@ -18,6 +18,8 @@
 package bridge
 
 import (
+	"fmt"
+	"io"
 	"os"
 	"path/filepath"
 )
@@ -62,3 +64,75 @@ func moveFile(from, to string) error {
 
 	return nil
 }
+
+func copyDir(from, to string) error {
+	entries, err := os.ReadDir(from)
+	if err != nil {
+		return err
+	}
+	if err := createIfNotExists(to, 0o700); err != nil {
+		return err
+	}
+	for _, entry := range entries {
+		sourcePath := filepath.Join(from, entry.Name())
+		destPath := filepath.Join(to, entry.Name())
+
+		if entry.IsDir() {
+			if err := copyDir(sourcePath, destPath); err != nil {
+				return err
+			}
+		} else {
+			if err := copyFile(sourcePath, destPath); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func copyFile(srcFile, dstFile string) error {
+	out, err := os.Create(filepath.Clean(dstFile))
+	defer func(out *os.File) {
+		_ = out.Close()
+	}(out)
+
+	if err != nil {
+		return err
+	}
+
+	in, err := os.Open(filepath.Clean(srcFile))
+	defer func(in *os.File) {
+		_ = in.Close()
+	}(in)
+
+	if err != nil {
+		return err
+	}
+
+	_, err = io.Copy(out, in)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func exists(filePath string) bool {
+	if _, err := os.Stat(filePath); os.IsNotExist(err) {
+		return false
+	}
+
+	return true
+}
+
+func createIfNotExists(dir string, perm os.FileMode) error {
+	if exists(dir) {
+		return nil
+	}
+
+	if err := os.MkdirAll(dir, perm); err != nil {
+		return fmt.Errorf("failed to create directory: '%s', error: '%s'", dir, err.Error())
+	}
+
+	return nil
+}

internal/bridge/imap.go

@@ -20,21 +20,21 @@ package bridge
 import (
 	"context"
 	"crypto/tls"
-	"errors"
 	"fmt"
 	"io"
-	"io/fs"
 	"os"
 	"path/filepath"
-	"runtime"
 
 	"github.com/Masterminds/semver/v3"
 	"github.com/ProtonMail/gluon"
+	"github.com/ProtonMail/gluon/async"
 	imapEvents "github.com/ProtonMail/gluon/events"
+	"github.com/ProtonMail/gluon/imap"
 	"github.com/ProtonMail/gluon/reporter"
 	"github.com/ProtonMail/gluon/store"
-	"github.com/ProtonMail/proton-bridge/v3/internal/async"
+	"github.com/ProtonMail/gluon/store/fallback_v0"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
+	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/logging"
 	"github.com/ProtonMail/proton-bridge/v3/internal/user"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
@@ -47,26 +47,42 @@ const (
 )
 
 func (bridge *Bridge) serveIMAP() error {
-	if bridge.imapServer == nil {
-		return fmt.Errorf("no imap server instance running")
-	}
+	port, err := func() (int, error) {
+		if bridge.imapServer == nil {
+			return 0, fmt.Errorf("no IMAP server instance running")
+		}
 
-	logrus.Info("Starting IMAP server")
+		logrus.Info("Starting IMAP server")
+
+		imapListener, err := newListener(bridge.vault.GetIMAPPort(), bridge.vault.GetIMAPSSL(), bridge.tlsConfig)
+		if err != nil {
+			return 0, fmt.Errorf("failed to create IMAP listener: %w", err)
+		}
+
+		bridge.imapListener = imapListener
+
+		if err := bridge.imapServer.Serve(context.Background(), bridge.imapListener); err != nil {
+			return 0, fmt.Errorf("failed to serve IMAP: %w", err)
+		}
+
+		if err := bridge.vault.SetIMAPPort(getPort(imapListener.Addr())); err != nil {
+			return 0, fmt.Errorf("failed to store IMAP port in vault: %w", err)
+		}
+
+		return getPort(imapListener.Addr()), nil
+	}()
 
-	imapListener, err := newListener(bridge.vault.GetIMAPPort(), bridge.vault.GetIMAPSSL(), bridge.tlsConfig)
 	if err != nil {
-		return fmt.Errorf("failed to create IMAP listener: %w", err)
+		bridge.publish(events.IMAPServerError{
+			Error: err,
+		})
+
+		return err
 	}
 
-	bridge.imapListener = imapListener
-
-	if err := bridge.imapServer.Serve(context.Background(), bridge.imapListener); err != nil {
-		return fmt.Errorf("failed to serve IMAP: %w", err)
-	}
-
-	if err := bridge.vault.SetIMAPPort(getPort(imapListener.Addr())); err != nil {
-		return fmt.Errorf("failed to store IMAP port in vault: %w", err)
-	}
+	bridge.publish(events.IMAPServerReady{
+		Port: port,
+	})
 
 	return nil
 }
@@ -78,6 +94,8 @@ func (bridge *Bridge) restartIMAP() error {
 		if err := bridge.imapListener.Close(); err != nil {
 			return fmt.Errorf("failed to close IMAP listener: %w", err)
 		}
+
+		bridge.publish(events.IMAPServerStopped{})
 	}
 
 	return bridge.serveIMAP()
@@ -90,6 +108,7 @@ func (bridge *Bridge) closeIMAP(ctx context.Context) error {
 		if err := bridge.imapServer.Close(ctx); err != nil {
 			return fmt.Errorf("failed to close IMAP server: %w", err)
 		}
+
 		bridge.imapServer = nil
 	}
 
@@ -99,6 +118,8 @@ func (bridge *Bridge) closeIMAP(ctx context.Context) error {
 		}
 	}
 
+	bridge.publish(events.IMAPServerStopped{})
+
 	return nil
 }
 
@@ -122,9 +143,53 @@ func (bridge *Bridge) addIMAPUser(ctx context.Context, user *user.User) error {
 		if gluonID, ok := user.GetGluonID(addrID); ok {
 			log.WithField("gluonID", gluonID).Info("Loading existing IMAP user")
 
-			if err := bridge.imapServer.LoadUser(ctx, imapConn, gluonID, user.GluonKey()); err != nil {
+			// Load the user, checking whether the DB was newly created.
+			isNew, err := bridge.imapServer.LoadUser(ctx, imapConn, gluonID, user.GluonKey())
+			if err != nil {
 				return fmt.Errorf("failed to load IMAP user: %w", err)
 			}
+
+			if isNew {
+				// If the DB was newly created, clear the sync status; gluon's DB was not found.
+				logrus.Warn("IMAP user DB was newly created, clearing sync status")
+
+				// Remove the user from IMAP so we can clear the sync status.
+				if err := bridge.imapServer.RemoveUser(ctx, gluonID, false); err != nil {
+					return fmt.Errorf("failed to remove IMAP user: %w", err)
+				}
+
+				// Clear the sync status -- we need to resync all messages.
+				if err := user.ClearSyncStatus(); err != nil {
+					return fmt.Errorf("failed to clear sync status: %w", err)
+				}
+
+				// Add the user back to the IMAP server.
+				if isNew, err := bridge.imapServer.LoadUser(ctx, imapConn, gluonID, user.GluonKey()); err != nil {
+					return fmt.Errorf("failed to add IMAP user: %w", err)
+				} else if isNew {
+					panic("IMAP user should already have a database")
+				}
+			} else if status := user.GetSyncStatus(); !status.HasLabels {
+				// Otherwise, the DB already exists -- if the labels are not yet synced, we need to re-create the DB.
+				if err := bridge.imapServer.RemoveUser(ctx, gluonID, true); err != nil {
+					return fmt.Errorf("failed to remove old IMAP user: %w", err)
+				}
+
+				if err := user.RemoveGluonID(addrID, gluonID); err != nil {
+					return fmt.Errorf("failed to remove old IMAP user ID: %w", err)
+				}
+
+				gluonID, err := bridge.imapServer.AddUser(ctx, imapConn, user.GluonKey())
+				if err != nil {
+					return fmt.Errorf("failed to add IMAP user: %w", err)
+				}
+
+				if err := user.SetGluonID(addrID, gluonID); err != nil {
+					return fmt.Errorf("failed to set IMAP user ID: %w", err)
+				}
+
+				log.WithField("gluonID", gluonID).Info("Re-created IMAP user")
+			}
 		} else {
 			log.Info("Creating new IMAP user")
 
@@ -141,6 +206,9 @@ func (bridge *Bridge) addIMAPUser(ctx context.Context, user *user.User) error {
 		}
 	}
 
+	// Trigger a sync for the user, if needed.
+	user.TriggerSync()
+
 	return nil
 }
 
@@ -149,6 +217,7 @@ func (bridge *Bridge) removeIMAPUser(ctx context.Context, user *user.User, withD
 	if bridge.imapServer == nil {
 		return fmt.Errorf("no imap server instance running")
 	}
+
 	logrus.WithFields(logrus.Fields{
 		"userID":   user.ID(),
 		"withData": withData,
@@ -195,47 +264,52 @@ func (bridge *Bridge) handleIMAPEvent(event imapEvents.Event) {
 		if event.IMAPID.Name != "" && event.IMAPID.Version != "" {
 			bridge.identifier.SetClient(event.IMAPID.Name, event.IMAPID.Version)
 		}
+
+	case imapEvents.LoginFailed:
+		logrus.WithFields(logrus.Fields{
+			"sessionID": event.SessionID,
+			"username":  event.Username,
+		}).Info("Received IMAP login failure notification")
+		bridge.publish(events.IMAPLoginFailed{Username: event.Username})
 	}
 }
 
 func getGluonDir(encVault *vault.Vault) (string, error) {
-	empty, exists, err := isEmpty(encVault.GetGluonDir())
-	if err != nil {
-		return "", fmt.Errorf("failed to check if gluon dir is empty: %w", err)
+	if err := os.MkdirAll(encVault.GetGluonCacheDir(), 0o700); err != nil {
+		return "", fmt.Errorf("failed to create gluon dir: %w", err)
 	}
 
-	if !exists {
-		if err := os.MkdirAll(encVault.GetGluonDir(), 0o700); err != nil {
-			return "", fmt.Errorf("failed to create gluon dir: %w", err)
-		}
-	}
-
-	if empty {
-		if err := encVault.ForUser(runtime.NumCPU(), func(user *vault.User) error {
-			return user.ClearSyncStatus()
-		}); err != nil {
-			return "", fmt.Errorf("failed to reset user sync status: %w", err)
-		}
-	}
-
-	return encVault.GetGluonDir(), nil
+	return encVault.GetGluonCacheDir(), nil
+}
+
+func ApplyGluonCachePathSuffix(basePath string) string {
+	return filepath.Join(basePath, "backend", "store")
+}
+
+func ApplyGluonConfigPathSuffix(basePath string) string {
+	return filepath.Join(basePath, "backend", "db")
 }
 
-// nolint:funlen
 func newIMAPServer(
-	gluonDir string,
+	gluonCacheDir, gluonConfigDir string,
 	version *semver.Version,
 	tlsConfig *tls.Config,
 	reporter reporter.Reporter,
 	logClient, logServer bool,
 	eventCh chan<- imapEvents.Event,
 	tasks *async.Group,
+	uidValidityGenerator imap.UIDValidityGenerator,
+	panicHandler async.PanicHandler,
 ) (*gluon.Server, error) {
+	gluonCacheDir = ApplyGluonCachePathSuffix(gluonCacheDir)
+	gluonConfigDir = ApplyGluonConfigPathSuffix(gluonConfigDir)
+
 	logrus.WithFields(logrus.Fields{
-		"gluonDir":  gluonDir,
-		"version":   version,
-		"logClient": logClient,
-		"logServer": logServer,
+		"gluonStore": gluonCacheDir,
+		"gluonDB":    gluonConfigDir,
+		"version":    version,
+		"logClient":  logClient,
+		"logServer":  logServer,
 	}).Info("Creating IMAP server")
 
 	if logClient || logServer {
@@ -263,11 +337,14 @@ func newIMAPServer(
 
 	imapServer, err := gluon.New(
 		gluon.WithTLS(tlsConfig),
-		gluon.WithDataDir(gluonDir),
+		gluon.WithDataDir(gluonCacheDir),
+		gluon.WithDatabaseDir(gluonConfigDir),
 		gluon.WithStoreBuilder(new(storeBuilder)),
 		gluon.WithLogger(imapClientLog, imapServerLog),
 		getGluonVersionInfo(version),
 		gluon.WithReporter(reporter),
+		gluon.WithUIDValidityGenerator(uidValidityGenerator),
+		gluon.WithPanicHandler(panicHandler),
 	)
 	if err != nil {
 		return nil, err
@@ -297,32 +374,13 @@ func getGluonVersionInfo(version *semver.Version) gluon.Option {
 	)
 }
 
-// isEmpty returns whether the given directory is empty.
-// If the directory does not exist, the second return value is false.
-func isEmpty(dir string) (bool, bool, error) {
-	if _, err := os.Stat(dir); err != nil {
-		if !errors.Is(err, fs.ErrNotExist) {
-			return false, false, fmt.Errorf("failed to stat %s: %w", dir, err)
-		}
-
-		return true, false, nil
-	}
-
-	entries, err := os.ReadDir(dir)
-	if err != nil {
-		return false, false, fmt.Errorf("failed to read dir %s: %w", dir, err)
-	}
-
-	return len(entries) == 0, true, nil
-}
-
 type storeBuilder struct{}
 
 func (*storeBuilder) New(path, userID string, passphrase []byte) (store.Store, error) {
 	return store.NewOnDiskStore(
 		filepath.Join(path, userID),
 		passphrase,
-		store.WithCompressor(new(store.GZipCompressor)),
+		store.WithFallback(fallback_v0.NewOnDiskStoreV0WithCompressor(&fallback_v0.GZipCompressor{})),
 	)
 }
 

internal/bridge/mocks.go

@@ -45,7 +45,7 @@ func NewMocks(tb testing.TB, version, minAuto *semver.Version) *Mocks {
 	mocks.TLSReporter.EXPECT().GetTLSIssueCh().Return(mocks.TLSIssueCh).AnyTimes()
 
 	// This is called at he end of any go-routine:
-	mocks.CrashHandler.EXPECT().HandlePanic().AnyTimes()
+	mocks.CrashHandler.EXPECT().HandlePanic(gomock.Any()).AnyTimes()
 
 	return mocks
 }

internal/bridge/mocks/async_mocks.go

@@ -1,5 +1,5 @@
 // Code generated by MockGen. DO NOT EDIT.
-// Source: github.com/ProtonMail/proton-bridge/v3/internal/async (interfaces: PanicHandler)
+// Source: github.com/ProtonMail/gluon/async (interfaces: PanicHandler)
 
 // Package mocks is a generated GoMock package.
 package mocks
@@ -34,13 +34,13 @@ func (m *MockPanicHandler) EXPECT() *MockPanicHandlerMockRecorder {
 }
 
 // HandlePanic mocks base method.
-func (m *MockPanicHandler) HandlePanic() {
+func (m *MockPanicHandler) HandlePanic(arg0 interface{}) {
 	m.ctrl.T.Helper()
-	m.ctrl.Call(m, "HandlePanic")
+	m.ctrl.Call(m, "HandlePanic", arg0)
 }
 
 // HandlePanic indicates an expected call of HandlePanic.
-func (mr *MockPanicHandlerMockRecorder) HandlePanic() *gomock.Call {
+func (mr *MockPanicHandlerMockRecorder) HandlePanic(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "HandlePanic", reflect.TypeOf((*MockPanicHandler)(nil).HandlePanic))
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "HandlePanic", reflect.TypeOf((*MockPanicHandler)(nil).HandlePanic), arg0)
 }

internal/bridge/refresh_test.go

@@ -57,6 +57,7 @@ func TestBridge_Refresh(t *testing.T) {
 			require.Equal(t, userID, (<-syncCh).UserID)
 		})
 
+		var uidValidities = make(map[string]uint32, len(names))
 		// If we then connect an IMAP client, it should see all the labels with UID validity of 1.
 		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(b *bridge.Bridge, mocks *bridge.Mocks) {
 			mocks.Reporter.EXPECT().ReportMessageWithContext(gomock.Any(), gomock.Any()).AnyTimes()
@@ -73,7 +74,7 @@ func TestBridge_Refresh(t *testing.T) {
 			for _, name := range names {
 				status, err := client.Select("Folders/"+name, false)
 				require.NoError(t, err)
-				require.Equal(t, uint32(1000), status.UidValidity)
+				uidValidities[name] = status.UidValidity
 			}
 		})
 
@@ -106,7 +107,7 @@ func TestBridge_Refresh(t *testing.T) {
 			for _, name := range names {
 				status, err := client.Select("Folders/"+name, false)
 				require.NoError(t, err)
-				require.Equal(t, uint32(1001), status.UidValidity)
+				require.Greater(t, status.UidValidity, uidValidities[name])
 			}
 		})
 	})

internal/bridge/send_test.go

@@ -18,10 +18,12 @@
 package bridge_test
 
 import (
+	"bytes"
 	"context"
 	"crypto/tls"
 	"fmt"
 	"net"
+	"os"
 	"strings"
 	"testing"
 	"time"
@@ -30,6 +32,7 @@ import (
 	"github.com/ProtonMail/go-proton-api/server"
 	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
+	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/emersion/go-imap"
 	"github.com/emersion/go-imap/client"
 	"github.com/emersion/go-sasl"
@@ -42,7 +45,7 @@ func TestBridge_Send(t *testing.T) {
 		_, _, err := s.CreateUser("recipient", password)
 		require.NoError(t, err)
 
-		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
 			senderUserID, err := bridge.LoginFull(ctx, username, password, nil, nil)
 			require.NoError(t, err)
 
@@ -100,7 +103,7 @@ func TestBridge_Send(t *testing.T) {
 			defer recipientIMAPClient.Logout() //nolint:errcheck
 
 			// Sender should have 10 messages in the sent folder.
-			// Recipient should have 0 messages in inbox.
+			// Recipient should have 10 messages in inbox.
 			require.Eventually(t, func() bool {
 				sent, err := senderIMAPClient.Status(`Sent`, []imap.StatusItem{imap.StatusMessages})
 				require.NoError(t, err)
@@ -113,3 +116,396 @@ func TestBridge_Send(t *testing.T) {
 		})
 	})
 }
+
+func TestBridge_SendDraftFlags(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a recipient user.
+		_, _, err := s.CreateUser("recipient", password)
+		require.NoError(t, err)
+
+		// The sender should be fully synced.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			syncCh, done := chToType[events.Event, events.SyncFinished](bridge.GetEvents(events.SyncFinished{}))
+			defer done()
+
+			userID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+			require.NoError(t, err)
+
+			require.Equal(t, userID, (<-syncCh).UserID)
+		})
+
+		// Start the bridge.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			// Get the sender user info.
+			userInfo, err := bridge.QueryUserInfo(username)
+			require.NoError(t, err)
+
+			// Connect the sender IMAP client.
+			imapClient, err := client.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetIMAPPort())))
+			require.NoError(t, err)
+			require.NoError(t, imapClient.Login(userInfo.Addresses[0], string(userInfo.BridgePass)))
+			defer imapClient.Logout() //nolint:errcheck
+
+			// The message to send.
+			const message = `Subject: Test\r\n\r\nHello world!`
+
+			// Save a draft.
+			require.NoError(t, imapClient.Append("Drafts", []string{imap.DraftFlag}, time.Now(), strings.NewReader(message)))
+
+			// Assert that the draft exists and is marked as a draft.
+			{
+				messages, err := clientFetch(imapClient, "Drafts")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.Contains(t, messages[0].Flags, imap.DraftFlag)
+			}
+
+			// Connect the SMTP client.
+			smtpClient, err := smtp.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetSMTPPort())))
+			require.NoError(t, err)
+			defer smtpClient.Close() //nolint:errcheck
+
+			// Upgrade to TLS.
+			require.NoError(t, smtpClient.StartTLS(&tls.Config{InsecureSkipVerify: true}))
+
+			// Authorize with SASL PLAIN.
+			require.NoError(t, smtpClient.Auth(sasl.NewPlainClient(
+				userInfo.Addresses[0],
+				userInfo.Addresses[0],
+				string(userInfo.BridgePass)),
+			))
+
+			// Send the message.
+			require.NoError(t, smtpClient.SendMail(
+				userInfo.Addresses[0],
+				[]string{"recipient@" + s.GetDomain()},
+				strings.NewReader(message),
+			))
+
+			// Delete the draft: add the \Deleted flag and expunge.
+			{
+				status, err := imapClient.Select("Drafts", false)
+				require.NoError(t, err)
+				require.Equal(t, uint32(1), status.Messages)
+
+				// Add the \Deleted flag.
+				require.NoError(t, clientStore(imapClient, 1, 1, true, imap.FormatFlagsOp(imap.AddFlags, true), imap.DeletedFlag))
+
+				// Expunge.
+				require.NoError(t, imapClient.Expunge(nil))
+			}
+
+			// Assert that the draft is eventually gone.
+			require.Eventually(t, func() bool {
+				status, err := imapClient.Select("Drafts", false)
+				require.NoError(t, err)
+				return status.Messages == 0
+			}, 10*time.Second, 100*time.Millisecond)
+
+			// Assert that the message is eventually in the sent folder.
+			require.Eventually(t, func() bool {
+				messages, err := clientFetch(imapClient, "Sent")
+				require.NoError(t, err)
+				return len(messages) == 1
+			}, 10*time.Second, 100*time.Millisecond)
+
+			// Assert that the message is not marked as a draft.
+			{
+				messages, err := clientFetch(imapClient, "Sent")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.NotContains(t, messages[0].Flags, imap.DraftFlag)
+			}
+		})
+	})
+}
+
+func TestBridge_SendInvite(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a recipient user.
+		_, _, err := s.CreateUser("recipient", password)
+		require.NoError(t, err)
+
+		// Set "attach public keys" to true for the user.
+		withClient(ctx, t, s, username, password, func(ctx context.Context, client *proton.Client) {
+			settings, err := client.SetAttachPublicKey(ctx, proton.SetAttachPublicKeyReq{AttachPublicKey: true})
+			require.NoError(t, err)
+			require.Equal(t, proton.Bool(true), settings.AttachPublicKey)
+		})
+
+		// The sender should be fully synced.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			syncCh, done := chToType[events.Event, events.SyncFinished](bridge.GetEvents(events.SyncFinished{}))
+			defer done()
+
+			userID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+			require.NoError(t, err)
+
+			require.Equal(t, userID, (<-syncCh).UserID)
+		})
+
+		// Start the bridge.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			// Get the sender user info.
+			userInfo, err := bridge.QueryUserInfo(username)
+			require.NoError(t, err)
+
+			// Connect the sender IMAP client.
+			imapClient, err := client.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetIMAPPort())))
+			require.NoError(t, err)
+			require.NoError(t, imapClient.Login(userInfo.Addresses[0], string(userInfo.BridgePass)))
+			defer imapClient.Logout() //nolint:errcheck
+
+			// The message to send.
+			b, err := os.ReadFile("testdata/invite.eml")
+			require.NoError(t, err)
+
+			// Save a draft.
+			require.NoError(t, imapClient.Append("Drafts", []string{imap.DraftFlag}, time.Now(), bytes.NewReader(b)))
+
+			// Assert that the draft exists and is marked as a draft.
+			{
+				messages, err := clientFetch(imapClient, "Drafts")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.Contains(t, messages[0].Flags, imap.DraftFlag)
+			}
+
+			// Connect the SMTP client.
+			smtpClient, err := smtp.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetSMTPPort())))
+			require.NoError(t, err)
+			defer smtpClient.Close() //nolint:errcheck
+
+			// Upgrade to TLS.
+			require.NoError(t, smtpClient.StartTLS(&tls.Config{InsecureSkipVerify: true}))
+
+			// Authorize with SASL PLAIN.
+			require.NoError(t, smtpClient.Auth(sasl.NewPlainClient(
+				userInfo.Addresses[0],
+				userInfo.Addresses[0],
+				string(userInfo.BridgePass)),
+			))
+
+			// Send the message.
+			require.NoError(t, smtpClient.SendMail(
+				userInfo.Addresses[0],
+				[]string{"recipient@" + s.GetDomain()},
+				bytes.NewReader(b),
+			))
+
+			// Delete the draft: add the \Deleted flag and expunge.
+			{
+				status, err := imapClient.Select("Drafts", false)
+				require.NoError(t, err)
+				require.Equal(t, uint32(1), status.Messages)
+
+				// Add the \Deleted flag.
+				require.NoError(t, clientStore(imapClient, 1, 1, true, imap.FormatFlagsOp(imap.AddFlags, true), imap.DeletedFlag))
+
+				// Expunge.
+				require.NoError(t, imapClient.Expunge(nil))
+			}
+
+			// Assert that the draft is eventually gone.
+			require.Eventually(t, func() bool {
+				status, err := imapClient.Select("Drafts", false)
+				require.NoError(t, err)
+				return status.Messages == 0
+			}, 10*time.Second, 100*time.Millisecond)
+
+			// Assert that the message is eventually in the sent folder.
+			require.Eventually(t, func() bool {
+				messages, err := clientFetch(imapClient, "Sent")
+				require.NoError(t, err)
+				return len(messages) == 1
+			}, 10*time.Second, 100*time.Millisecond)
+
+			// Assert that the message is not marked as a draft.
+			{
+				messages, err := clientFetch(imapClient, "Sent")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.NotContains(t, messages[0].Flags, imap.DraftFlag)
+			}
+		})
+	})
+}
+
+func TestBridge_SendAddTextBodyPartIfNotExists(t *testing.T) {
+	const messageMultipartWithoutText = `Content-Type: multipart/mixed;
+  boundary="Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84"
+Subject: A new message
+Date: Mon, 13 Mar 2023 16:06:16 +0100
+
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84
+Content-Disposition: inline;
+  filename=Cat_August_2010-4.jpeg
+Content-Type: image/jpeg;
+  name="Cat_August_2010-4.jpeg"
+Content-Transfer-Encoding: base64
+
+SGVsbG8gd29ybGQ=
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84--
+	`
+
+	const messageMultipartWithText = `Content-Type: multipart/mixed;
+  boundary="Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84"
+Subject: A new message Part2 
+Date: Mon, 13 Mar 2023 16:06:16 +0100
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84
+Content-Disposition: inline;
+  filename=Cat_August_2010-4.jpeg
+Content-Type: image/jpeg;
+  name="Cat_August_2010-4.jpeg"
+Content-Transfer-Encoding: base64
+
+SGVsbG8gd29ybGQ=
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84
+Content-Type: text/html;charset=utf8
+Content-Transfer-Encoding: quoted-printable
+
+Hello world
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84--
+`
+
+	const messageWithTextOnly = `Content-Type: text/plain;charset=utf8
+Content-Transfer-Encoding: quoted-printable
+Subject: A new message Part3
+Date: Mon, 13 Mar 2023 16:06:16 +0100
+
+Hello world
+
+`
+
+	const messageMultipartWithoutTextWithTextAttachment = `Content-Type: multipart/mixed;
+  boundary="Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84"
+Subject: A new message Part4
+Date: Mon, 13 Mar 2023 16:06:16 +0100
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84
+Content-Type: text/plain; charset=UTF-8; name="text.txt"
+Content-Disposition: attachment; filename="text.txt"
+Content-Transfer-Encoding: base64
+
+SGVsbG8gd29ybGQK
+
+--Apple-Mail=_E7AC06C7-4EB2-4453-8CBB-80F4412A7C84--
+`
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		_, _, err := s.CreateUser("recipient", password)
+		require.NoError(t, err)
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			senderUserID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+			require.NoError(t, err)
+
+			recipientUserID, err := bridge.LoginFull(ctx, "recipient", password, nil, nil)
+			require.NoError(t, err)
+
+			senderInfo, err := bridge.GetUserInfo(senderUserID)
+			require.NoError(t, err)
+
+			recipientInfo, err := bridge.GetUserInfo(recipientUserID)
+			require.NoError(t, err)
+
+			messages := []string{
+				messageMultipartWithoutText,
+				messageMultipartWithText,
+				messageWithTextOnly,
+				messageMultipartWithoutTextWithTextAttachment,
+			}
+
+			for _, m := range messages {
+				// Dial the server.
+				client, err := smtp.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetSMTPPort())))
+				require.NoError(t, err)
+				defer client.Close() //nolint:errcheck
+
+				// Upgrade to TLS.
+				require.NoError(t, client.StartTLS(&tls.Config{InsecureSkipVerify: true}))
+
+				// Authorize with SASL LOGIN.
+				require.NoError(t, client.Auth(sasl.NewLoginClient(
+					senderInfo.Addresses[0],
+					string(senderInfo.BridgePass)),
+				))
+
+				// Send the message.
+				require.NoError(t, client.SendMail(
+					senderInfo.Addresses[0],
+					[]string{recipientInfo.Addresses[0]},
+					strings.NewReader(m),
+				))
+			}
+
+			// Connect the sender IMAP client.
+			senderIMAPClient, err := client.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetIMAPPort())))
+			require.NoError(t, err)
+			require.NoError(t, senderIMAPClient.Login(senderInfo.Addresses[0], string(senderInfo.BridgePass)))
+			defer senderIMAPClient.Logout() //nolint:errcheck
+
+			// Connect the recipient IMAP client.
+			recipientIMAPClient, err := client.Dial(net.JoinHostPort(constants.Host, fmt.Sprint(bridge.GetIMAPPort())))
+			require.NoError(t, err)
+			require.NoError(t, recipientIMAPClient.Login(recipientInfo.Addresses[0], string(recipientInfo.BridgePass)))
+			defer recipientIMAPClient.Logout() //nolint:errcheck
+
+			require.Eventually(t, func() bool {
+				messages, err := clientFetch(senderIMAPClient, `Sent`, imap.FetchBodyStructure)
+				require.NoError(t, err)
+				require.Equal(t, 4, len(messages))
+
+				// messages may not be in order
+				for _, message := range messages {
+					switch {
+					case message.Envelope.Subject == "A new message":
+						// The message that was sent should now include an empty text/plain body part since there was none
+						// in the original message.
+						require.Equal(t, 2, len(message.BodyStructure.Parts))
+
+						require.Equal(t, "text", message.BodyStructure.Parts[0].MIMEType)
+						require.Equal(t, "plain", message.BodyStructure.Parts[0].MIMESubType)
+						require.Equal(t, uint32(0), message.BodyStructure.Parts[0].Size)
+						require.Equal(t, "image", message.BodyStructure.Parts[1].MIMEType)
+						require.Equal(t, "jpeg", message.BodyStructure.Parts[1].MIMESubType)
+
+					case message.Envelope.Subject == "A new message Part2":
+						// This message already has a text body, should be unchanged
+						require.Equal(t, 2, len(message.BodyStructure.Parts))
+
+						require.Equal(t, "image", message.BodyStructure.Parts[1].MIMEType)
+						require.Equal(t, "jpeg", message.BodyStructure.Parts[1].MIMESubType)
+						require.Equal(t, "text", message.BodyStructure.Parts[0].MIMEType)
+						require.Equal(t, "html", message.BodyStructure.Parts[0].MIMESubType)
+
+					case message.Envelope.Subject == "A new message Part3":
+						// This message already has a text body, should be unchanged
+						require.Equal(t, 0, len(message.BodyStructure.Parts))
+
+						require.Equal(t, "text", message.BodyStructure.MIMEType)
+						require.Equal(t, "plain", message.BodyStructure.MIMESubType)
+
+					case message.Envelope.Subject == "A new message Part4":
+						// The message that was sent should now include an empty text/plain body part since even though
+						// there was only a text/plain attachment in the original message.
+						require.Equal(t, 2, len(message.BodyStructure.Parts))
+
+						require.Equal(t, "text", message.BodyStructure.Parts[0].MIMEType)
+						require.Equal(t, "plain", message.BodyStructure.Parts[0].MIMESubType)
+						require.Equal(t, uint32(0), message.BodyStructure.Parts[0].Size)
+						require.Equal(t, "text", message.BodyStructure.Parts[1].MIMEType)
+						require.Equal(t, "plain", message.BodyStructure.Parts[1].MIMESubType)
+						require.Equal(t, "attachment", message.BodyStructure.Parts[1].Disposition)
+					}
+				}
+
+				return true
+			}, 10*time.Second, 100*time.Millisecond)
+		})
+	})
+}

internal/bridge/settings.go

@@ -21,14 +21,13 @@ import (
 	"context"
 	"fmt"
 	"net"
+	"os"
 	"path/filepath"
 
 	"github.com/Masterminds/semver/v3"
-	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
 	"github.com/ProtonMail/proton-bridge/v3/internal/updater"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
-	"github.com/ProtonMail/proton-bridge/v3/pkg/keychain"
 	"github.com/sirupsen/logrus"
 )
 
@@ -114,38 +113,42 @@ func (bridge *Bridge) SetSMTPSSL(newSSL bool) error {
 	return bridge.restartSMTP()
 }
 
-func (bridge *Bridge) GetGluonDir() string {
-	return bridge.vault.GetGluonDir()
+func (bridge *Bridge) GetGluonCacheDir() string {
+	return bridge.vault.GetGluonCacheDir()
+}
+
+func (bridge *Bridge) GetGluonDataDir() (string, error) {
+	return bridge.locator.ProvideGluonDataPath()
 }
 
 func (bridge *Bridge) SetGluonDir(ctx context.Context, newGluonDir string) error {
 	return safe.RLockRet(func() error {
-		currentGluonDir := bridge.GetGluonDir()
+		currentGluonDir := bridge.GetGluonCacheDir()
+		newGluonDir = filepath.Join(newGluonDir, "gluon")
 		if newGluonDir == currentGluonDir {
 			return fmt.Errorf("new gluon dir is the same as the old one")
 		}
 
-		currentVolumeName := filepath.VolumeName(currentGluonDir)
-		newVolumeName := filepath.VolumeName(newGluonDir)
-
-		if currentVolumeName != newVolumeName {
-			return fmt.Errorf("it's currently not possible to move the cache between different volumes")
-		}
-
 		if err := bridge.closeIMAP(context.Background()); err != nil {
 			return fmt.Errorf("failed to close IMAP: %w", err)
 		}
 
-		if err := moveDir(bridge.GetGluonDir(), newGluonDir); err != nil {
-			return fmt.Errorf("failed to move gluon dir: %w", err)
+		if err := bridge.moveGluonCacheDir(currentGluonDir, newGluonDir); err != nil {
+			logrus.WithError(err).Error("failed to move GluonCacheDir")
+
+			if err := bridge.vault.SetGluonDir(currentGluonDir); err != nil {
+				return fmt.Errorf("failed to revert GluonCacheDir: %w", err)
+			}
 		}
 
-		if err := bridge.vault.SetGluonDir(newGluonDir); err != nil {
-			return fmt.Errorf("failed to set new gluon dir: %w", err)
+		gluonDataDir, err := bridge.GetGluonDataDir()
+		if err != nil {
+			return fmt.Errorf("failed to get Gluon Database directory: %w", err)
 		}
 
 		imapServer, err := newIMAPServer(
-			bridge.vault.GetGluonDir(),
+			bridge.vault.GetGluonCacheDir(),
+			gluonDataDir,
 			bridge.curVersion,
 			bridge.tlsConfig,
 			bridge.reporter,
@@ -153,6 +156,8 @@ func (bridge *Bridge) SetGluonDir(ctx context.Context, newGluonDir string) error
 			bridge.logIMAPServer,
 			bridge.imapEventCh,
 			bridge.tasks,
+			bridge.uidValidityGenerator,
+			bridge.panicHandler,
 		)
 		if err != nil {
 			return fmt.Errorf("failed to create new IMAP server: %w", err)
@@ -174,6 +179,23 @@ func (bridge *Bridge) SetGluonDir(ctx context.Context, newGluonDir string) error
 	}, bridge.usersLock)
 }
 
+func (bridge *Bridge) moveGluonCacheDir(oldGluonDir, newGluonDir string) error {
+	logrus.Infof("gluon cache moving from %s to %s", oldGluonDir, newGluonDir)
+	oldCacheDir := ApplyGluonCachePathSuffix(oldGluonDir)
+	if err := copyDir(oldCacheDir, ApplyGluonCachePathSuffix(newGluonDir)); err != nil {
+		return fmt.Errorf("failed to copy gluon dir: %w", err)
+	}
+
+	if err := bridge.vault.SetGluonDir(newGluonDir); err != nil {
+		return fmt.Errorf("failed to set new gluon cache dir: %w", err)
+	}
+
+	if err := os.RemoveAll(oldCacheDir); err != nil {
+		logrus.WithError(err).Error("failed to remove old gluon cache dir")
+	}
+	return nil
+}
+
 func (bridge *Bridge) GetProxyAllowed() bool {
 	return bridge.vault.GetProxyAllowed()
 }
@@ -272,23 +294,11 @@ func (bridge *Bridge) GetCurrentVersion() *semver.Version {
 }
 
 func (bridge *Bridge) GetLastVersion() *semver.Version {
-	return bridge.vault.GetLastVersion()
+	return bridge.lastVersion
 }
 
 func (bridge *Bridge) GetFirstStart() bool {
-	return bridge.vault.GetFirstStart()
-}
-
-func (bridge *Bridge) SetFirstStart(firstStart bool) error {
-	return bridge.vault.SetFirstStart(firstStart)
-}
-
-func (bridge *Bridge) GetFirstStartGUI() bool {
-	return bridge.vault.GetFirstStartGUI()
-}
-
-func (bridge *Bridge) SetFirstStartGUI(firstStart bool) error {
-	return bridge.vault.SetFirstStartGUI(firstStart)
+	return bridge.firstStart
 }
 
 func (bridge *Bridge) GetColorScheme() string {
@@ -299,6 +309,9 @@ func (bridge *Bridge) SetColorScheme(colorScheme string) error {
 	return bridge.vault.SetColorScheme(colorScheme)
 }
 
+// FactoryReset deletes all users, wipes the vault, and deletes all files.
+// Note: it does not clear the keychain. The only entry in the keychain is the vault password,
+// which we need at next startup to decrypt the vault.
 func (bridge *Bridge) FactoryReset(ctx context.Context) {
 	// Delete all the users.
 	safe.Lock(func() {
@@ -308,29 +321,17 @@ func (bridge *Bridge) FactoryReset(ctx context.Context) {
 	}, bridge.usersLock)
 
 	// Wipe the vault.
-	gluonDir, err := bridge.locator.ProvideGluonPath()
+	gluonCacheDir, err := bridge.locator.ProvideGluonCachePath()
 	if err != nil {
 		logrus.WithError(err).Error("Failed to provide gluon dir")
-	} else if err := bridge.vault.Reset(gluonDir); err != nil {
+	} else if err := bridge.vault.Reset(gluonCacheDir); err != nil {
 		logrus.WithError(err).Error("Failed to reset vault")
 	}
 
-	// Then delete all files.
-	if err := bridge.locator.Clear(); err != nil {
+	// Lastly, delete all files except the vault.
+	if err := bridge.locator.Clear(bridge.vault.Path()); err != nil {
 		logrus.WithError(err).Error("Failed to clear data paths")
 	}
-
-	// Lastly clear the keychain.
-	vaultDir, err := bridge.locator.ProvideSettingsPath()
-	if err != nil {
-		logrus.WithError(err).Error("Failed to get vault dir")
-	} else if helper, err := vault.GetHelper(vaultDir); err != nil {
-		logrus.WithError(err).Error("Failed to get keychain helper")
-	} else if keychain, err := keychain.NewKeychain(helper, constants.KeyChainName); err != nil {
-		logrus.WithError(err).Error("Failed to get keychain")
-	} else if err := keychain.Clear(); err != nil {
-		logrus.WithError(err).Error("Failed to clear keychain")
-	}
 }
 
 func getPort(addr net.Addr) int {

internal/bridge/settings_test.go

@@ -162,26 +162,7 @@ func TestBridge_Settings_FirstStart(t *testing.T) {
 			// By default, first start is true.
 			require.True(t, bridge.GetFirstStart())
 
-			// Set first start to false.
-			require.NoError(t, bridge.SetFirstStart(false))
-
-			// Get the new setting.
-			require.False(t, bridge.GetFirstStart())
-		})
-	})
-}
-
-func TestBridge_Settings_FirstStartGUI(t *testing.T) {
-	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
-		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
-			// By default, first start is true.
-			require.True(t, bridge.GetFirstStartGUI())
-
-			// Set first start to false.
-			require.NoError(t, bridge.SetFirstStartGUI(false))
-
-			// Get the new setting.
-			require.False(t, bridge.GetFirstStartGUI())
+			// the setting of the first start value is managed by bridge itself, so the setter is not exported.
 		})
 	})
 }

internal/bridge/smtp.go

@@ -22,6 +22,7 @@ import (
 	"crypto/tls"
 	"fmt"
 
+	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/logging"
 
 	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
@@ -31,25 +32,41 @@ import (
 )
 
 func (bridge *Bridge) serveSMTP() error {
-	logrus.Info("Starting SMTP server")
+	port, err := func() (int, error) {
+		logrus.Info("Starting SMTP server")
 
-	smtpListener, err := newListener(bridge.vault.GetSMTPPort(), bridge.vault.GetSMTPSSL(), bridge.tlsConfig)
-	if err != nil {
-		return fmt.Errorf("failed to create SMTP listener: %w", err)
-	}
-
-	bridge.smtpListener = smtpListener
-
-	bridge.tasks.Once(func(context.Context) {
-		if err := bridge.smtpServer.Serve(smtpListener); err != nil {
-			logrus.WithError(err).Info("SMTP server stopped")
+		smtpListener, err := newListener(bridge.vault.GetSMTPPort(), bridge.vault.GetSMTPSSL(), bridge.tlsConfig)
+		if err != nil {
+			return 0, fmt.Errorf("failed to create SMTP listener: %w", err)
 		}
-	})
 
-	if err := bridge.vault.SetSMTPPort(getPort(smtpListener.Addr())); err != nil {
-		return fmt.Errorf("failed to store SMTP port in vault: %w", err)
+		bridge.smtpListener = smtpListener
+
+		bridge.tasks.Once(func(context.Context) {
+			if err := bridge.smtpServer.Serve(smtpListener); err != nil {
+				logrus.WithError(err).Info("SMTP server stopped")
+			}
+		})
+
+		if err := bridge.vault.SetSMTPPort(getPort(smtpListener.Addr())); err != nil {
+			return 0, fmt.Errorf("failed to store SMTP port in vault: %w", err)
+		}
+
+		return getPort(smtpListener.Addr()), nil
+	}()
+
+	if err != nil {
+		bridge.publish(events.SMTPServerError{
+			Error: err,
+		})
+
+		return err
 	}
 
+	bridge.publish(events.SMTPServerReady{
+		Port: port,
+	})
+
 	return nil
 }
 
@@ -60,6 +77,8 @@ func (bridge *Bridge) restartSMTP() error {
 		return fmt.Errorf("failed to close SMTP: %w", err)
 	}
 
+	bridge.publish(events.SMTPServerStopped{})
+
 	bridge.smtpServer = newSMTPServer(bridge, bridge.tlsConfig, bridge.logSMTP)
 
 	return bridge.serveSMTP()
@@ -82,6 +101,8 @@ func (bridge *Bridge) closeSMTP() error {
 		logrus.WithError(err).Debug("Failed to close SMTP server (expected -- we close the listener ourselves)")
 	}
 
+	bridge.publish(events.SMTPServerStopped{})
+
 	return nil
 }
 

internal/bridge/sync_test.go

@@ -28,6 +28,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/gluon/rfc822"
 	"github.com/ProtonMail/go-proton-api"
 	"github.com/ProtonMail/go-proton-api/server"
@@ -351,7 +352,7 @@ func withClient(ctx context.Context, t *testing.T, s *server.Server, username st
 	fn(ctx, c)
 }
 
-func clientFetch(client *client.Client, mailbox string) ([]*imap.Message, error) { //nolint:unused
+func clientFetch(client *client.Client, mailbox string, extraItems ...imap.FetchItem) ([]*imap.Message, error) {
 	status, err := client.Select(mailbox, false)
 	if err != nil {
 		return nil, err
@@ -363,10 +364,13 @@ func clientFetch(client *client.Client, mailbox string) ([]*imap.Message, error)
 
 	resCh := make(chan *imap.Message)
 
+	fetchItems := []imap.FetchItem{imap.FetchFlags, imap.FetchEnvelope, imap.FetchUid, imap.FetchBodyStructure, "BODY.PEEK[]"}
+	fetchItems = append(fetchItems, extraItems...)
+
 	go func() {
 		if err := client.Fetch(
 			&imap.SeqSet{Set: []imap.Seq{{Start: 1, Stop: status.Messages}}},
-			[]imap.FetchItem{imap.FetchFlags, imap.FetchEnvelope, imap.FetchUid, "BODY.PEEK[]"},
+			fetchItems,
 			resCh,
 		); err != nil {
 			panic(err)
@@ -376,6 +380,35 @@ func clientFetch(client *client.Client, mailbox string) ([]*imap.Message, error)
 	return iterator.Collect(iterator.Chan(resCh)), nil
 }
 
+func clientStore(client *client.Client, from, to int, isUID bool, item imap.StoreItem, flags ...string) error {
+	var storeFunc func(seqset *imap.SeqSet, item imap.StoreItem, value interface{}, ch chan *imap.Message) error
+
+	if isUID {
+		storeFunc = client.UidStore
+	} else {
+		storeFunc = client.Store
+	}
+
+	return storeFunc(
+		&imap.SeqSet{Set: []imap.Seq{{Start: uint32(from), Stop: uint32(to)}}},
+		item,
+		xslices.Map(flags, func(flag string) interface{} { return flag }),
+		nil,
+	)
+}
+
+func clientList(client *client.Client) []*imap.MailboxInfo {
+	resCh := make(chan *imap.MailboxInfo)
+
+	go func() {
+		if err := client.List("", "*", resCh); err != nil {
+			panic(err)
+		}
+	}()
+
+	return iterator.Collect(iterator.Chan(resCh))
+}
+
 func createNumMessages(ctx context.Context, t *testing.T, c *proton.Client, addrID, labelID string, count int) []string {
 	literal, err := os.ReadFile(filepath.Join("testdata", "text-plain.eml"))
 	require.NoError(t, err)
@@ -396,10 +429,13 @@ func createMessages(ctx context.Context, t *testing.T, c *proton.Client, addrID,
 	keyPass, err := salt.SaltForKey(password, user.Keys.Primary().ID)
 	require.NoError(t, err)
 
-	_, addrKRs, err := proton.Unlock(user, addr, keyPass)
+	_, addrKRs, err := proton.Unlock(user, addr, keyPass, async.NoopPanicHandler{})
 	require.NoError(t, err)
 
-	res, err := stream.Collect(ctx, c.ImportMessages(
+	_, ok := addrKRs[addrID]
+	require.True(t, ok)
+
+	str, err := c.ImportMessages(
 		ctx,
 		addrKRs[addrID],
 		runtime.NumCPU(),
@@ -414,7 +450,10 @@ func createMessages(ctx context.Context, t *testing.T, c *proton.Client, addrID,
 				Message: message,
 			}
 		})...,
-	))
+	)
+	require.NoError(t, err)
+
+	res, err := stream.Collect(ctx, str)
 	require.NoError(t, err)
 
 	return xslices.Map(res, func(res proton.ImportRes) string {

internal/bridge/testdata/invite.eml

@@ -0,0 +1,85 @@
+From: <username@proton.local>
+To: <recipient@proton.local>
+Subject: Testing calendar invite
+Date: Fri, 3 Feb 2023 01:04:32 +0100
+Message-ID: <000001d93763$183b74e0$48b25ea0$@proton.local>
+MIME-Version: 1.0
+Content-Type: text/calendar; method=REQUEST;
+	charset="utf-8"
+Content-Transfer-Encoding: 7bit
+X-Mailer: Microsoft Outlook 16.0
+Thread-Index: Adk3Yw5pLdgwsT46RviXb/nfvQlesQAAAmGA
+Content-Language: en-gb
+
+BEGIN:VCALENDAR
+PRODID:-//Microsoft Corporation//Outlook 16.0 MIMEDIR//EN
+VERSION:2.0
+METHOD:REQUEST
+X-MS-OLK-FORCEINSPECTOROPEN:TRUE
+BEGIN:VTIMEZONE
+TZID:Central European Standard Time
+BEGIN:STANDARD
+DTSTART:16011028T030000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010325T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+ATTENDEE;CN=recipient@proton.local;RSVP=TRUE:mailto:recipient@proton.local
+CLASS:PUBLIC
+CREATED:20230203T000432Z
+DESCRIPTION:qweqweqweqweqweqwe/gn\\n
+DTEND;TZID="Central European Standard Time":20230203T020000
+DTSTAMP:20230203T000432Z
+DTSTART;TZID="Central European Standard Time":20230203T013000
+LAST-MODIFIED:20230203T000432Z
+LOCATION:qweqwe
+ORGANIZER;CN=username@proton.local:mailto:username@proton.local
+PRIORITY:5
+SEQUENCE:0
+SUMMARY;LANGUAGE=en-gb:Testing calendar invite
+TRANSP:OPAQUE
+UID:040000008200E00074C5B7101A82E008000000003080B2796B37D901000000000000000
+	0100000001236CD1CD93CA9449C6FF1AC4DEAC44E
+X-ALT-DESC;FMTTYPE=text/html:<html xmlns:v="urn:schemas-microsoft-com:vml" 
+	xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-mic
+	rosoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/
+	12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Co
+	ntent-Type content="text/html/g; charset=us-ascii"><meta name=Generator con
+	tent="Microsoft Word 15 (filtered medium)"><style><!--/gn/* Font Definition
+	s *//gn@font-face\\n	{font-family:"Cambria Math"\\;\\n	panose-1:2 4 5 3 5 4 6 
+	3 2 4/g;}\\n@font-face\\n	{font-family:Calibri\\;\\n	panose-1:2 15 5 2 2 2 4 3 
+	2 4/g;}\\n/* Style Definitions */\\np.MsoNormal\\, li.MsoNormal\\, div.MsoNorma
+	l/gn	{margin:0cm\\;\\n	font-size:11.0pt\\;\\n	font-family:"Calibri"\\,sans-serif
+	/g;\\n	mso-fareast-language:EN-US\\;}\\nspan.EmailStyle18\\n	{mso-style-type:pe
+	rsonal-compose/g;\\n	font-family:"Calibri"\\,sans-serif\\;\\n	color:windowtext\\
+	;}/gn.MsoChpDefault\\n	{mso-style-type:export-only\\;\\n	font-size:10.0pt\\;}\\n
+	@page WordSection1/gn	{size:612.0pt 792.0pt\\;\\n	margin:72.0pt 72.0pt 72.0pt
+	 72.0pt/g;}\\ndiv.WordSection1\\n	{page:WordSection1\\;}\\n--></style><!--[if g
+	te mso 9]><xml>/gn<o:shapedefaults v:ext="edit" spidmax="1026" />\\n</xml><!
+	[endif]--><!--[if gte mso 9]><xml>/gn<o:shapelayout v:ext="edit">\\n<o:idmap
+	 v:ext="edit" data="1" />/gn</o:shapelayout></xml><![endif]--></head><body 
+	lang=EN-GB link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><di
+	v class=WordSection1><p class=MsoNormal><span lang=EN-US>qweqweqweqweqweqw
+	e<o:p></o:p></span></p></div></body></html>
+X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
+X-MICROSOFT-CDO-IMPORTANCE:1
+X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
+X-MICROSOFT-DISALLOW-COUNTER:FALSE
+X-MS-OLK-AUTOSTARTCHECK:FALSE
+X-MS-OLK-CONFTYPE:0
+BEGIN:VALARM
+TRIGGER:-PT15M
+ACTION:DISPLAY
+DESCRIPTION:Reminder
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+

internal/bridge/tls.go

@@ -18,5 +18,9 @@
 package bridge
 
 func (bridge *Bridge) GetBridgeTLSCert() ([]byte, []byte) {
-	return bridge.vault.GetBridgeTLSCert(), bridge.vault.GetBridgeTLSKey()
+	return bridge.vault.GetBridgeTLSCert()
+}
+
+func (bridge *Bridge) SetBridgeTLSCertPath(certPath, keyPath string) error {
+	return bridge.vault.SetBridgeTLSCertPath(certPath, keyPath)
 }

internal/bridge/types.go

@@ -26,10 +26,11 @@ import (
 type Locator interface {
 	ProvideSettingsPath() (string, error)
 	ProvideLogsPath() (string, error)
-	ProvideGluonPath() (string, error)
+	ProvideGluonCachePath() (string, error)
+	ProvideGluonDataPath() (string, error)
 	GetLicenseFilePath() string
 	GetDependencyLicensesLink() string
-	Clear() error
+	Clear(...string) error
 }
 
 type Identifier interface {

internal/bridge/updates.go

@@ -32,19 +32,7 @@ func (bridge *Bridge) CheckForUpdates() {
 }
 
 func (bridge *Bridge) InstallUpdate(version updater.VersionInfo) {
-	log := logrus.WithFields(logrus.Fields{
-		"version": version.Version,
-		"current": bridge.curVersion,
-		"channel": bridge.vault.GetUpdateChannel(),
-	})
-
-	select {
-	case bridge.installCh <- installJob{version: version, silent: false}:
-		log.Info("The update will be installed manually")
-
-	default:
-		log.Info("An update is already being installed")
-	}
+	bridge.installCh <- installJob{version: version, silent: false}
 }
 
 func (bridge *Bridge) handleUpdate(version updater.VersionInfo) {
@@ -89,17 +77,7 @@ func (bridge *Bridge) handleUpdate(version updater.VersionInfo) {
 
 	default:
 		safe.RLock(func() {
-			if version.Version.GreaterThan(bridge.newVersion) {
-				log.Info("An update is available")
-
-				select {
-				case bridge.installCh <- installJob{version: version, silent: true}:
-					log.Info("The update will be installed silently")
-
-				default:
-					log.Info("An update is already being installed")
-				}
-			}
+			bridge.installCh <- installJob{version: version, silent: true}
 		}, bridge.newVersionLock)
 	}
 }
@@ -117,6 +95,12 @@ func (bridge *Bridge) installUpdate(ctx context.Context, job installJob) {
 			"channel": bridge.vault.GetUpdateChannel(),
 		})
 
+		if !job.version.Version.GreaterThan(bridge.newVersion) {
+			return
+		}
+
+		log.WithField("silent", job.silent).Info("An update is available")
+
 		bridge.publish(events.UpdateAvailable{
 			Version:    job.version,
 			Compatible: true,
@@ -142,6 +126,7 @@ func (bridge *Bridge) installUpdate(ctx context.Context, job installJob) {
 				Silent:  job.silent,
 				Error:   err,
 			})
+
 		default:
 			log.Info("The update was installed successfully")
 

internal/bridge/user.go

@@ -23,9 +23,10 @@ import (
 	"fmt"
 	"runtime"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/gluon/imap"
+	"github.com/ProtonMail/gluon/reporter"
 	"github.com/ProtonMail/go-proton-api"
-	"github.com/ProtonMail/proton-bridge/v3/internal/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/logging"
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
@@ -94,7 +95,7 @@ func (bridge *Bridge) GetUserInfo(userID string) (UserInfo, error) {
 			if len(user.AuthUID()) == 0 {
 				state = SignedOut
 			}
-			info = getUserInfo(user.UserID(), user.Username(), state, user.AddressMode())
+			info = getUserInfo(user.UserID(), user.Username(), user.PrimaryEmail(), state, user.AddressMode())
 		}); err != nil {
 			return UserInfo{}, fmt.Errorf("failed to get user info: %w", err)
 		}
@@ -298,6 +299,59 @@ func (bridge *Bridge) SetAddressMode(ctx context.Context, userID string, mode va
 	}, bridge.usersLock)
 }
 
+// SendBadEventUserFeedback passes the feedback to the given user.
+func (bridge *Bridge) SendBadEventUserFeedback(_ context.Context, userID string, doResync bool) error {
+	logrus.WithField("userID", userID).WithField("doResync", doResync).Info("Passing bad event feedback to user")
+
+	return safe.LockRet(func() error {
+		ctx := context.Background()
+
+		user, ok := bridge.users[userID]
+		if !ok {
+			if rerr := bridge.reporter.ReportMessageWithContext(
+				"Failed to handle event: feedback failed: no such user",
+				reporter.Context{"user_id": userID},
+			); rerr != nil {
+				logrus.WithError(rerr).Error("Failed to report feedback failure")
+			}
+
+			return ErrNoSuchUser
+		}
+
+		if doResync {
+			if rerr := bridge.reporter.ReportMessageWithContext(
+				"Failed to handle event: feedback resync",
+				reporter.Context{"user_id": userID},
+			); rerr != nil {
+				logrus.WithError(rerr).Error("Failed to report feedback failure")
+			}
+
+			if err := bridge.addIMAPUser(ctx, user); err != nil {
+				return fmt.Errorf("failed to add IMAP user: %w", err)
+			}
+
+			user.BadEventFeedbackResync(ctx)
+
+			return nil
+		}
+
+		if rerr := bridge.reporter.ReportMessageWithContext(
+			"Failed to handle event: feedback logout",
+			reporter.Context{"user_id": userID},
+		); rerr != nil {
+			logrus.WithError(rerr).Error("Failed to report feedback failure")
+		}
+
+		bridge.logoutUser(ctx, user, true, false)
+
+		bridge.publish(events.UserLoggedOut{
+			UserID: userID,
+		})
+
+		return nil
+	}, bridge.usersLock)
+}
+
 func (bridge *Bridge) loginUser(ctx context.Context, client *proton.Client, authUID, authRef string, keyPass []byte) (string, error) {
 	apiUser, err := client.GetUser(ctx)
 	if err != nil {
@@ -329,30 +383,37 @@ func (bridge *Bridge) loginUser(ctx context.Context, client *proton.Client, auth
 
 // loadUsers tries to load each user in the vault that isn't already loaded.
 func (bridge *Bridge) loadUsers(ctx context.Context) error {
+	logrus.WithField("count", len(bridge.vault.GetUserIDs())).Info("Loading users")
+	defer logrus.Info("Finished loading users")
+
 	return bridge.vault.ForUser(runtime.NumCPU(), func(user *vault.User) error {
+		log := logrus.WithField("userID", user.UserID())
+
 		if user.AuthUID() == "" {
+			log.Info("User is not connected (skipping)")
 			return nil
 		}
 
 		if safe.RLockRet(func() bool { return mapHas(bridge.users, user.UserID()) }, bridge.usersLock) {
+			log.Info("User is already loaded (skipping)")
 			return nil
 		}
 
-		logrus.WithField("userID", user.UserID()).Info("Loading connected user")
+		log.Info("Loading connected user")
 
 		bridge.publish(events.UserLoading{
 			UserID: user.UserID(),
 		})
 
 		if err := bridge.loadUser(ctx, user); err != nil {
-			logrus.WithError(err).Error("Failed to load connected user")
+			log.WithError(err).Error("Failed to load connected user")
 
 			bridge.publish(events.UserLoadFail{
 				UserID: user.UserID(),
 				Error:  err,
 			})
 		} else {
-			logrus.WithField("userID", user.UserID()).Info("Successfully loaded user")
+			log.Info("Successfully loaded connected user")
 
 			bridge.publish(events.UserLoadSuccess{
 				UserID: user.UserID(),
@@ -367,12 +428,13 @@ func (bridge *Bridge) loadUsers(ctx context.Context) error {
 func (bridge *Bridge) loadUser(ctx context.Context, user *vault.User) error {
 	client, auth, err := bridge.api.NewClientWithRefresh(ctx, user.AuthUID(), user.AuthRef())
 	if err != nil {
-		if apiErr := new(proton.Error); errors.As(err, &apiErr) && (apiErr.Code == proton.AuthRefreshTokenInvalid) {
+		if apiErr := new(proton.APIError); errors.As(err, &apiErr) && (apiErr.Code == proton.AuthRefreshTokenInvalid) {
 			// The session cannot be refreshed, we sign out the user by clearing his auth secrets.
 			if err := user.Clear(); err != nil {
 				logrus.WithError(err).Warn("Failed to clear user secrets")
 			}
 		}
+
 		return fmt.Errorf("failed to create API client: %w", err)
 	}
 
@@ -389,6 +451,12 @@ func (bridge *Bridge) loadUser(ctx context.Context, user *vault.User) error {
 		return fmt.Errorf("failed to add user: %w", err)
 	}
 
+	if user.PrimaryEmail() != apiUser.Email {
+		if err := user.SetPrimaryEmail(apiUser.Email); err != nil {
+			return fmt.Errorf("failed to modify user primary email: %w", err)
+		}
+	}
+
 	return nil
 }
 
@@ -448,9 +516,9 @@ func (bridge *Bridge) addUserWithVault(
 		client,
 		bridge.reporter,
 		apiUser,
-		bridge.crashHandler,
-		bridge.vault.SyncWorkers(),
+		bridge.panicHandler,
 		bridge.vault.GetShowAllMail(),
+		bridge.vault.GetMaxSyncMemory(),
 	)
 	if err != nil {
 		return fmt.Errorf("failed to create user: %w", err)
@@ -504,7 +572,7 @@ func (bridge *Bridge) newVaultUser(
 	saltedKeyPass []byte,
 ) (*vault.User, bool, error) {
 	if !bridge.vault.HasUser(apiUser.ID) {
-		user, err := bridge.vault.AddUser(apiUser.ID, apiUser.Name, authUID, authRef, saltedKeyPass)
+		user, err := bridge.vault.AddUser(apiUser.ID, apiUser.Name, apiUser.Email, authUID, authRef, saltedKeyPass)
 		if err != nil {
 			return nil, false, fmt.Errorf("failed to add user to vault: %w", err)
 		}
@@ -550,11 +618,17 @@ func (bridge *Bridge) logoutUser(ctx context.Context, user *user.User, withAPI,
 }
 
 // getUserInfo returns information about a disconnected user.
-func getUserInfo(userID, username string, state UserState, addressMode vault.AddressMode) UserInfo {
+func getUserInfo(userID, username, primaryEmail string, state UserState, addressMode vault.AddressMode) UserInfo {
+	var addresses []string
+	if len(primaryEmail) > 0 {
+		addresses = []string{primaryEmail}
+	}
+
 	return UserInfo{
 		State:       state,
 		UserID:      userID,
 		Username:    username,
+		Addresses:   addresses,
 		AddressMode: addressMode,
 	}
 }

internal/bridge/user_event_test.go

@@ -0,0 +1,852 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package bridge_test
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/http"
+	"net/mail"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/ProtonMail/gluon/async"
+	"github.com/ProtonMail/gluon/rfc822"
+	"github.com/ProtonMail/go-proton-api"
+	"github.com/ProtonMail/go-proton-api/server"
+	"github.com/ProtonMail/gopenpgp/v2/crypto"
+	"github.com/ProtonMail/proton-bridge/v3/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/v3/internal/constants"
+	"github.com/ProtonMail/proton-bridge/v3/internal/events"
+	"github.com/ProtonMail/proton-bridge/v3/internal/user"
+	"github.com/bradenaw/juniper/stream"
+	"github.com/bradenaw/juniper/xslices"
+	"github.com/emersion/go-imap"
+	"github.com/emersion/go-imap/client"
+	"github.com/golang/mock/gomock"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBridge_User_RefreshEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		labelID, err := s.CreateLabel(userID, "folder", "", proton.LabelTypeFolder)
+		require.NoError(t, err)
+
+		var messageIDs []string
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			messageIDs = createNumMessages(ctx, t, c, addrID, labelID, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+		})
+
+		// Remove a message
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			require.NoError(t, c.DeleteMessage(ctx, messageIDs[0]))
+		})
+
+		require.NoError(t, s.RefreshUser(userID, proton.RefreshMail))
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			syncCh, closeCh := chToType[events.Event, events.SyncFinished](bridge.GetEvents(events.SyncFinished{}))
+
+			mocks.Reporter.EXPECT().ReportMessageWithContext(gomock.Any(), gomock.Any()).MinTimes(1)
+
+			require.Equal(t, userID, (<-syncCh).UserID)
+			closeCh()
+
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				createNumMessages(ctx, t, c, addrID, labelID, 10)
+			})
+
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_BadMessage_BadEvent(t *testing.T) {
+	t.Run("Resync", test_badMessage_badEvent(func(t *testing.T, ctx context.Context, bridge *bridge.Bridge, badUserID string) {
+		// User feedback is resync
+		require.NoError(t, bridge.SendBadEventUserFeedback(ctx, badUserID, true))
+
+		// Wait for sync to finish
+		syncCh, closeCh := chToType[events.Event, events.SyncFinished](bridge.GetEvents(events.SyncFinished{}))
+		require.Equal(t, badUserID, (<-syncCh).UserID)
+		closeCh()
+	}))
+
+	t.Run("LogoutAndLogin", test_badMessage_badEvent(func(t *testing.T, ctx context.Context, bridge *bridge.Bridge, badUserID string) {
+		logoutCh, closeCh := chToType[events.Event, events.UserLoggedOut](bridge.GetEvents(events.UserLoggedOut{}))
+
+		// User feedback is logout
+		require.NoError(t, bridge.SendBadEventUserFeedback(ctx, badUserID, false))
+
+		require.Equal(t, badUserID, (<-logoutCh).UserID)
+		closeCh()
+
+		// The user will eventually be logged out due to the bad request errors.
+		require.Eventually(t, func() bool {
+			return len(bridge.GetUserIDs()) == 1 && len(getConnectedUserIDs(t, bridge)) == 0
+		}, 100*user.EventPeriod, user.EventPeriod)
+
+		// Login again
+		_, err := bridge.LoginFull(ctx, "user", password, nil, nil)
+		require.NoError(t, err)
+	}))
+}
+
+func test_badMessage_badEvent(userFeedback func(t *testing.T, ctx context.Context, bridge *bridge.Bridge, badUserID string)) func(t *testing.T) {
+	return func(t *testing.T) {
+		withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+			// Create a user.
+			userID, addrID, err := s.CreateUser("user", password)
+			require.NoError(t, err)
+
+			labelID, err := s.CreateLabel(userID, "folder", "", proton.LabelTypeFolder)
+			require.NoError(t, err)
+
+			// Create 10 messages for the user.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				createNumMessages(ctx, t, c, addrID, labelID, 10)
+			})
+
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userLoginAndSync(ctx, t, bridge, "user", password)
+
+				var messageIDs []string
+
+				// Create 10 more messages for the user, generating events.
+				withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+					messageIDs = createNumMessages(ctx, t, c, addrID, labelID, 10)
+				})
+
+				// If bridge attempts to sync the new messages, it should get a BadRequest error.
+				doBadRequest := true
+				s.AddStatusHook(func(req *http.Request) (int, bool) {
+					if !doBadRequest {
+						return 0, false
+					}
+
+					if xslices.Index(xslices.Map(messageIDs[0:5], func(messageID string) string {
+						return "/mail/v4/messages/" + messageID
+					}), req.URL.Path) < 0 {
+						return 0, false
+					}
+
+					return http.StatusBadRequest, true
+				})
+
+				badUserID := userReceivesBadError(t, bridge, mocks)
+
+				// Remove messages, make response OK again
+				withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+					require.NoError(t, c.DeleteMessage(ctx, messageIDs[0:5]...))
+				})
+				doBadRequest = false
+
+				userFeedback(t, ctx, bridge, badUserID)
+
+				userContinueEventProcess(ctx, t, s, bridge)
+			})
+		})
+	}
+}
+
+func TestBridge_User_BadMessage_NoBadEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		_, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			var messageIDs []string
+
+			// Create 10 more messages for the user, generating events.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				messageIDs = createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+			})
+
+			// If bridge attempts to sync the new messages, it should get a BadRequest error.
+			s.AddStatusHook(func(req *http.Request) (int, bool) {
+				if strings.Contains(req.URL.Path, "/mail/v4/messages/"+messageIDs[2]) {
+					return http.StatusUnprocessableEntity, true
+				}
+
+				return 0, false
+			})
+
+			// Remove messages
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				require.NoError(t, c.DeleteMessage(ctx, messageIDs...))
+			})
+
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_SameMessageLabelCreated_NoBadEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		var messageIDs []string
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			messageIDs = createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			labelID, err := s.CreateLabel(userID, "folder", "", proton.LabelTypeFolder)
+			require.NoError(t, err)
+
+			// Add NOOP events
+			require.NoError(t, s.AddLabelCreatedEvent(userID, labelID))
+			require.NoError(t, s.AddMessageCreatedEvent(userID, messageIDs[9]))
+
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_MessageLabelDeleted_NoBadEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		labelID, err := s.CreateLabel(userID, "folder", "", proton.LabelTypeFolder)
+		require.NoError(t, err)
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, labelID, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			// Create and delete 10 more messages for the user, generating delete events.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				messageIDs := createNumMessages(ctx, t, c, addrID, labelID, 10)
+				require.NoError(t, c.DeleteMessage(ctx, messageIDs...))
+			})
+
+			// Create and delete 10 labels for the user, generating delete events.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				for i := 0; i < 10; i++ {
+					label, err := c.CreateLabel(ctx, proton.CreateLabelReq{
+						Name:  uuid.NewString(),
+						Color: "#f66",
+						Type:  proton.LabelTypeLabel,
+					})
+					require.NoError(t, err)
+
+					require.NoError(t, c.DeleteLabel(ctx, label.ID))
+				}
+			})
+
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_AddressEvents_NoBadEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			addrID, err = s.CreateAddress(userID, "other@pm.me", password)
+			require.NoError(t, err)
+			userContinueEventProcess(ctx, t, s, bridge)
+
+			require.NoError(t, s.AddAddressCreatedEvent(userID, addrID))
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+
+		otherID, err := s.CreateAddress(userID, "another@pm.me", password)
+		require.NoError(t, err)
+		require.NoError(t, s.RemoveAddress(userID, otherID))
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			userContinueEventProcess(ctx, t, s, bridge)
+
+			require.NoError(t, s.CreateAddressKey(userID, addrID, password))
+			userContinueEventProcess(ctx, t, s, bridge)
+
+			require.NoError(t, s.RemoveAddress(userID, addrID))
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_AddressEventUpdatedForAddressThatDoesNotExist_NoBadEvent(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, _, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, _ *bridge.Mocks) {
+			_, err := s.CreateAddressAsUpdate(userID, "another@pm.me", password)
+			require.NoError(t, err)
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_Network_NoBadEvents(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		retVal := int32(0)
+
+		setResponseAndWait := func(status int32) {
+			atomic.StoreInt32(&retVal, status)
+			time.Sleep(user.EventPeriod)
+		}
+
+		s.AddStatusHook(func(req *http.Request) (int, bool) {
+			status := atomic.LoadInt32(&retVal)
+			if strings.Contains(req.URL.Path, "/core/v4/events/") {
+				return int(status), status != 0
+			}
+
+			return 0, false
+		})
+
+		// Create a user.
+		_, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			// Create 10 more messages for the user, generating events.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+
+				setResponseAndWait(http.StatusInternalServerError)
+				setResponseAndWait(http.StatusServiceUnavailable)
+				setResponseAndWait(http.StatusPaymentRequired)
+				setResponseAndWait(http.StatusForbidden)
+				setResponseAndWait(http.StatusBadRequest)
+				setResponseAndWait(http.StatusUnprocessableEntity)
+				setResponseAndWait(http.StatusTooManyRequests)
+				time.Sleep(10 * time.Second) // needs minimum of 10 seconds to retry
+			})
+
+			setResponseAndWait(0)
+			time.Sleep(10 * time.Second) // needs up to 20 seconds to retry
+			userContinueEventProcess(ctx, t, s, bridge)
+		})
+	})
+}
+
+func TestBridge_User_DropConn_NoBadEvent(t *testing.T) {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+
+	dropListener := proton.NewListener(l, proton.NewDropConn)
+	defer func() { _ = dropListener.Close() }()
+
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		_, addrID, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Create 10 messages for the user.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+
+			mocks.Reporter.EXPECT().ReportMessageWithContext(gomock.Any(), gomock.Any()).AnyTimes()
+
+			// Create 10 more messages for the user, generating events.
+			withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+				createNumMessages(ctx, t, c, addrID, proton.InboxLabel, 10)
+			})
+
+			var count int
+
+			// The first 10 times bridge attempts to sync any of the messages, drop the connection.
+			s.AddStatusHook(func(req *http.Request) (int, bool) {
+				if strings.Contains(req.URL.Path, "/mail/v4/messages") {
+					if count++; count < 10 {
+						dropListener.DropAll()
+					}
+				}
+
+				return 0, false
+			})
+
+			info, err := bridge.QueryUserInfo("user")
+			require.NoError(t, err)
+
+			client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, bridge.GetIMAPPort()))
+			require.NoError(t, err)
+			require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+			defer func() { _ = client.Logout() }()
+
+			// The IMAP client will eventually see 20 messages.
+			require.Eventually(t, func() bool {
+				status, err := client.Status("INBOX", []imap.StatusItem{imap.StatusMessages})
+				return err == nil && status.Messages == 20
+			}, 10*time.Second, 100*time.Millisecond)
+		})
+	}, server.WithListener(dropListener))
+}
+
+func TestBridge_User_UpdateDraftAndCreateOtherMessage(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a bridge user.
+		_, _, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Initially sync the user.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+		})
+
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			user, err := c.GetUser(ctx)
+			require.NoError(t, err)
+
+			addrs, err := c.GetAddresses(ctx)
+			require.NoError(t, err)
+
+			salts, err := c.GetSalts(ctx)
+			require.NoError(t, err)
+
+			keyPass, err := salts.SaltForKey(password, user.Keys.Primary().ID)
+			require.NoError(t, err)
+
+			_, addrKRs, err := proton.Unlock(user, addrs, keyPass, async.NoopPanicHandler{})
+			require.NoError(t, err)
+
+			// Create a draft (generating a "create draft message" event).
+			draft, err := c.CreateDraft(ctx, addrKRs[addrs[0].ID], proton.CreateDraftReq{
+				Message: proton.DraftTemplate{
+					Subject:  "subject",
+					Sender:   &mail.Address{Name: "sender", Address: addrs[0].Email},
+					Body:     "body",
+					MIMEType: rfc822.TextPlain,
+				},
+			})
+			require.NoError(t, err)
+
+			// Process those events
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userContinueEventProcess(ctx, t, s, bridge)
+			})
+
+			// Update the draft (generating an "update draft message" event).
+			require.NoError(t, getErr(c.UpdateDraft(ctx, draft.ID, addrKRs[addrs[0].ID], proton.UpdateDraftReq{
+				Message: proton.DraftTemplate{
+					Subject:  "subject 2",
+					Sender:   &mail.Address{Name: "sender", Address: addrs[0].Email},
+					Body:     "body 2",
+					MIMEType: rfc822.TextPlain,
+				},
+			})))
+
+			// Import a message (generating a "create message" event).
+			str, err := c.ImportMessages(ctx, addrKRs[addrs[0].ID], 1, 1, proton.ImportReq{
+				Metadata: proton.ImportMetadata{
+					AddressID: addrs[0].ID,
+					Flags:     proton.MessageFlagReceived,
+				},
+				Message: []byte("From: someone@example.com\r\nTo: blabla@example.com\r\n\r\nhello"),
+			})
+			require.NoError(t, err)
+
+			res, err := stream.Collect(ctx, str)
+			require.NoError(t, err)
+
+			// Process those events.
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userContinueEventProcess(ctx, t, s, bridge)
+			})
+
+			// Update the imported message (generating an "update message" event).
+			require.NoError(t, c.MarkMessagesUnread(ctx, res[0].MessageID))
+
+			// Process those events.
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userContinueEventProcess(ctx, t, s, bridge)
+			})
+		})
+	})
+}
+
+func TestBridge_User_SendDraftRemoveDraftFlag(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a bridge user.
+		_, _, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Initially sync the user.
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			userLoginAndSync(ctx, t, bridge, "user", password)
+		})
+
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			user, err := c.GetUser(ctx)
+			require.NoError(t, err)
+
+			addrs, err := c.GetAddresses(ctx)
+			require.NoError(t, err)
+
+			salts, err := c.GetSalts(ctx)
+			require.NoError(t, err)
+
+			keyPass, err := salts.SaltForKey(password, user.Keys.Primary().ID)
+			require.NoError(t, err)
+
+			_, addrKRs, err := proton.Unlock(user, addrs, keyPass, async.NoopPanicHandler{})
+			require.NoError(t, err)
+
+			// Create a draft (generating a "create draft message" event).
+			draft, err := c.CreateDraft(ctx, addrKRs[addrs[0].ID], proton.CreateDraftReq{
+				Message: proton.DraftTemplate{
+					Subject:  "subject",
+					ToList:   []*mail.Address{{Address: addrs[0].Email}},
+					Sender:   &mail.Address{Name: "sender", Address: addrs[0].Email},
+					Body:     "body",
+					MIMEType: rfc822.TextPlain,
+				},
+			})
+			require.NoError(t, err)
+
+			// Process those events
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userContinueEventProcess(ctx, t, s, bridge)
+
+				info, err := bridge.QueryUserInfo("user")
+				require.NoError(t, err)
+
+				client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, bridge.GetIMAPPort()))
+				require.NoError(t, err)
+				require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+				defer func() { _ = client.Logout() }()
+
+				messages, err := clientFetch(client, "Drafts")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.Contains(t, messages[0].Flags, imap.DraftFlag)
+			})
+
+			// Send the draft (generating an "update message" event).
+			{
+				pubKeys, recType, err := c.GetPublicKeys(ctx, addrs[0].Email)
+				require.NoError(t, err)
+				require.Equal(t, recType, proton.RecipientTypeInternal)
+
+				var req proton.SendDraftReq
+
+				require.NoError(t, req.AddTextPackage(addrKRs[addrs[0].ID], "body", rfc822.TextPlain, map[string]proton.SendPreferences{
+					addrs[0].Email: {
+						Encrypt:          true,
+						PubKey:           must(crypto.NewKeyRing(must(crypto.NewKeyFromArmored(pubKeys[0].PublicKey)))),
+						SignatureType:    proton.DetachedSignature,
+						EncryptionScheme: proton.InternalScheme,
+						MIMEType:         rfc822.TextPlain,
+					},
+				}, nil))
+
+				require.NoError(t, getErr(c.SendDraft(ctx, draft.ID, req)))
+			}
+
+			// Process those events; the draft will move to the sent folder and lose the draft flag.
+			withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+				userContinueEventProcess(ctx, t, s, bridge)
+
+				info, err := bridge.QueryUserInfo("user")
+				require.NoError(t, err)
+
+				client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, bridge.GetIMAPPort()))
+				require.NoError(t, err)
+				require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+				defer func() { _ = client.Logout() }()
+
+				messages, err := clientFetch(client, "Sent")
+				require.NoError(t, err)
+				require.Len(t, messages, 1)
+				require.NotContains(t, messages[0].Flags, imap.DraftFlag)
+			})
+		})
+	})
+}
+
+func TestBridge_User_DisableEnableAddress(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, _, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Create an additional address for the user.
+		aliasID, err := s.CreateAddress(userID, "alias@"+s.GetDomain(), password)
+		require.NoError(t, err)
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			require.NoError(t, getErr(bridge.LoginFull(ctx, "user", password, nil, nil)))
+
+			// Initially we should list the address.
+			info, err := bridge.QueryUserInfo("user")
+			require.NoError(t, err)
+			require.Contains(t, info.Addresses, "alias@"+s.GetDomain())
+		})
+
+		// Disable the address.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			require.NoError(t, c.DisableAddress(ctx, aliasID))
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			// Eventually we shouldn't list the address.
+			require.Eventually(t, func() bool {
+				info, err := bridge.QueryUserInfo("user")
+				require.NoError(t, err)
+
+				return xslices.Index(info.Addresses, "alias@"+s.GetDomain()) < 0
+			}, 5*time.Second, 100*time.Millisecond)
+		})
+
+		// Enable the address.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			require.NoError(t, c.EnableAddress(ctx, aliasID))
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			// Eventually we should list the address.
+			require.Eventually(t, func() bool {
+				info, err := bridge.QueryUserInfo("user")
+				require.NoError(t, err)
+
+				return xslices.Index(info.Addresses, "alias@"+s.GetDomain()) >= 0
+			}, 5*time.Second, 100*time.Millisecond)
+		})
+	})
+}
+
+func TestBridge_User_CreateDisabledAddress(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		// Create a user.
+		userID, _, err := s.CreateUser("user", password)
+		require.NoError(t, err)
+
+		// Create an additional address for the user.
+		aliasID, err := s.CreateAddress(userID, "alias@"+s.GetDomain(), password)
+		require.NoError(t, err)
+
+		// Immediately disable the address.
+		withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+			require.NoError(t, c.DisableAddress(ctx, aliasID))
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			require.NoError(t, getErr(bridge.LoginFull(ctx, "user", password, nil, nil)))
+
+			// Initially we shouldn't list the address.
+			info, err := bridge.QueryUserInfo("user")
+			require.NoError(t, err)
+			require.NotContains(t, info.Addresses, "alias@"+s.GetDomain())
+		})
+	})
+}
+
+func TestBridge_User_HandleParentLabelRename(t *testing.T) {
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			require.NoError(t, getErr(bridge.LoginFull(ctx, username, password, nil, nil)))
+
+			info, err := bridge.QueryUserInfo(username)
+			require.NoError(t, err)
+
+			client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, bridge.GetIMAPPort()))
+			require.NoError(t, err)
+			require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+			defer func() { _ = client.Logout() }()
+
+			withClient(ctx, t, s, username, password, func(ctx context.Context, c *proton.Client) {
+				parentName := uuid.NewString()
+				childName := uuid.NewString()
+
+				// Create a folder.
+				parentLabel, err := c.CreateLabel(ctx, proton.CreateLabelReq{
+					Name:  parentName,
+					Type:  proton.LabelTypeFolder,
+					Color: "#f66",
+				})
+				require.NoError(t, err)
+
+				// Wait for the parent folder to be created.
+				require.Eventually(t, func() bool {
+					return xslices.IndexFunc(clientList(client), func(mailbox *imap.MailboxInfo) bool {
+						return mailbox.Name == fmt.Sprintf("Folders/%v", parentName)
+					}) >= 0
+				}, 100*user.EventPeriod, user.EventPeriod)
+
+				// Create a subfolder.
+				childLabel, err := c.CreateLabel(ctx, proton.CreateLabelReq{
+					Name:     childName,
+					Type:     proton.LabelTypeFolder,
+					Color:    "#f66",
+					ParentID: parentLabel.ID,
+				})
+				require.NoError(t, err)
+				require.Equal(t, parentLabel.ID, childLabel.ParentID)
+
+				// Wait for the parent folder to be created.
+				require.Eventually(t, func() bool {
+					return xslices.IndexFunc(clientList(client), func(mailbox *imap.MailboxInfo) bool {
+						return mailbox.Name == fmt.Sprintf("Folders/%v/%v", parentName, childName)
+					}) >= 0
+				}, 100*user.EventPeriod, user.EventPeriod)
+
+				newParentName := uuid.NewString()
+
+				// Rename the parent folder.
+				require.NoError(t, getErr(c.UpdateLabel(ctx, parentLabel.ID, proton.UpdateLabelReq{
+					Color: "#f66",
+					Name:  newParentName,
+				})))
+
+				// Wait for the parent folder to be renamed.
+				require.Eventually(t, func() bool {
+					return xslices.IndexFunc(clientList(client), func(mailbox *imap.MailboxInfo) bool {
+						return mailbox.Name == fmt.Sprintf("Folders/%v", newParentName)
+					}) >= 0
+				}, 100*user.EventPeriod, user.EventPeriod)
+
+				// Wait for the child folder to be renamed.
+				require.Eventually(t, func() bool {
+					return xslices.IndexFunc(clientList(client), func(mailbox *imap.MailboxInfo) bool {
+						return mailbox.Name == fmt.Sprintf("Folders/%v/%v", newParentName, childName)
+					}) >= 0
+				}, 100*user.EventPeriod, user.EventPeriod)
+			})
+		})
+	})
+}
+
+// userLoginAndSync logs in user and waits until user is fully synced.
+func userLoginAndSync(
+	ctx context.Context,
+	t *testing.T,
+	bridge *bridge.Bridge,
+	username string, password []byte, //nolint:unparam
+) {
+	syncCh, done := chToType[events.Event, events.SyncFinished](bridge.GetEvents(events.SyncFinished{}))
+	defer done()
+
+	userID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+	require.NoError(t, err)
+
+	require.Equal(t, userID, (<-syncCh).UserID)
+}
+
+func userReceivesBadError(
+	t *testing.T,
+	bridge *bridge.Bridge,
+	mocks *bridge.Mocks,
+) (userID string) {
+	badEventCh, closeCh := bridge.GetEvents(events.UserBadEvent{})
+
+	// The user will continue to process events and will receive bad request errors.
+	mocks.Reporter.EXPECT().ReportMessageWithContext(gomock.Any(), gomock.Any()).MinTimes(1)
+
+	badEvent, ok := (<-badEventCh).(events.UserBadEvent)
+	require.True(t, ok)
+
+	closeCh()
+
+	return badEvent.UserID
+}
+
+func userContinueEventProcess(
+	ctx context.Context,
+	t *testing.T,
+	s *server.Server,
+	bridge *bridge.Bridge,
+) {
+	info, err := bridge.QueryUserInfo("user")
+	require.NoError(t, err)
+
+	client, err := client.Dial(fmt.Sprintf("%v:%v", constants.Host, bridge.GetIMAPPort()))
+	require.NoError(t, err)
+	require.NoError(t, client.Login(info.Addresses[0], string(info.BridgePass)))
+	defer func() { _ = client.Logout() }()
+
+	randomLabel := uuid.NewString()
+
+	// Create a new label.
+	withClient(ctx, t, s, "user", password, func(ctx context.Context, c *proton.Client) {
+		require.NoError(t, getErr(c.CreateLabel(ctx, proton.CreateLabelReq{
+			Name:  randomLabel,
+			Color: "#f66",
+			Type:  proton.LabelTypeLabel,
+		})))
+	})
+
+	// Wait for the label to be created.
+	require.Eventually(t, func() bool {
+		return xslices.IndexFunc(clientList(client), func(mailbox *imap.MailboxInfo) bool {
+			return mailbox.Name == "Labels/"+randomLabel
+		}) >= 0
+	}, 100*user.EventPeriod, user.EventPeriod)
+}

internal/bridge/user_events.go

@@ -21,10 +21,13 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/ProtonMail/gluon/reporter"
+	"github.com/ProtonMail/proton-bridge/v3/internal"
 	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
 	"github.com/ProtonMail/proton-bridge/v3/internal/user"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
+	"github.com/sirupsen/logrus"
 )
 
 func (bridge *Bridge) handleUserEvent(ctx context.Context, user *user.User, event events.Event) error {
@@ -34,9 +37,14 @@ func (bridge *Bridge) handleUserEvent(ctx context.Context, user *user.User, even
 			return fmt.Errorf("failed to handle user address created event: %w", err)
 		}
 
-	case events.UserAddressUpdated:
-		if err := bridge.handleUserAddressUpdated(ctx, user, event); err != nil {
-			return fmt.Errorf("failed to handle user address updated event: %w", err)
+	case events.UserAddressEnabled:
+		if err := bridge.handleUserAddressEnabled(ctx, user, event); err != nil {
+			return fmt.Errorf("failed to handle user address enabled event: %w", err)
+		}
+
+	case events.UserAddressDisabled:
+		if err := bridge.handleUserAddressDisabled(ctx, user, event); err != nil {
+			return fmt.Errorf("failed to handle user address disabled event: %w", err)
 		}
 
 	case events.UserAddressDeleted:
@@ -45,74 +53,113 @@ func (bridge *Bridge) handleUserEvent(ctx context.Context, user *user.User, even
 		}
 
 	case events.UserRefreshed:
-		if err := bridge.handleUserRefreshed(ctx, user); err != nil {
+		if err := bridge.handleUserRefreshed(ctx, user, event); err != nil {
 			return fmt.Errorf("failed to handle user refreshed event: %w", err)
 		}
 
 	case events.UserDeauth:
 		bridge.handleUserDeauth(ctx, user)
+
+	case events.UserBadEvent:
+		bridge.handleUserBadEvent(ctx, user, event)
+
+	case events.UncategorizedEventError:
+		bridge.handleUncategorizedErrorEvent(event)
 	}
 
 	return nil
 }
 
 func (bridge *Bridge) handleUserAddressCreated(ctx context.Context, user *user.User, event events.UserAddressCreated) error {
-	if user.GetAddressMode() == vault.SplitMode {
-		if bridge.imapServer == nil {
-			return fmt.Errorf("no imap server instance running")
-		}
+	if user.GetAddressMode() == vault.CombinedMode {
+		return nil
+	}
 
-		gluonID, err := bridge.imapServer.AddUser(ctx, user.NewIMAPConnector(event.AddressID), user.GluonKey())
-		if err != nil {
-			return fmt.Errorf("failed to add user to IMAP server: %w", err)
-		}
+	if bridge.imapServer == nil {
+		return fmt.Errorf("no imap server instance running")
+	}
 
-		if err := user.SetGluonID(event.AddressID, gluonID); err != nil {
-			return fmt.Errorf("failed to set gluon ID: %w", err)
-		}
+	gluonID, err := bridge.imapServer.AddUser(ctx, user.NewIMAPConnector(event.AddressID), user.GluonKey())
+	if err != nil {
+		return fmt.Errorf("failed to add user to IMAP server: %w", err)
+	}
+
+	if err := user.SetGluonID(event.AddressID, gluonID); err != nil {
+		return fmt.Errorf("failed to set gluon ID: %w", err)
 	}
 
 	return nil
 }
 
-// GODT-1948: Handle addresses that have been disabled!
-func (bridge *Bridge) handleUserAddressUpdated(_ context.Context, user *user.User, _ events.UserAddressUpdated) error {
-	switch user.GetAddressMode() {
-	case vault.CombinedMode:
-		return fmt.Errorf("not implemented")
+func (bridge *Bridge) handleUserAddressEnabled(ctx context.Context, user *user.User, event events.UserAddressEnabled) error {
+	if user.GetAddressMode() == vault.CombinedMode {
+		return nil
+	}
 
-	case vault.SplitMode:
-		return fmt.Errorf("not implemented")
+	gluonID, err := bridge.imapServer.AddUser(ctx, user.NewIMAPConnector(event.AddressID), user.GluonKey())
+	if err != nil {
+		return fmt.Errorf("failed to add user to IMAP server: %w", err)
+	}
+
+	if err := user.SetGluonID(event.AddressID, gluonID); err != nil {
+		return fmt.Errorf("failed to set gluon ID: %w", err)
+	}
+
+	return nil
+}
+
+func (bridge *Bridge) handleUserAddressDisabled(ctx context.Context, user *user.User, event events.UserAddressDisabled) error {
+	if user.GetAddressMode() == vault.CombinedMode {
+		return nil
+	}
+
+	gluonID, ok := user.GetGluonID(event.AddressID)
+	if !ok {
+		return fmt.Errorf("gluon ID not found for address %s", event.AddressID)
+	}
+
+	if err := bridge.imapServer.RemoveUser(ctx, gluonID, true); err != nil {
+		return fmt.Errorf("failed to remove user from IMAP server: %w", err)
+	}
+
+	if err := user.RemoveGluonID(event.AddressID, gluonID); err != nil {
+		return fmt.Errorf("failed to remove gluon ID for address: %w", err)
 	}
 
 	return nil
 }
 
 func (bridge *Bridge) handleUserAddressDeleted(ctx context.Context, user *user.User, event events.UserAddressDeleted) error {
-	if user.GetAddressMode() == vault.SplitMode {
-		if bridge.imapServer == nil {
-			return fmt.Errorf("no imap server instance running")
-		}
+	if user.GetAddressMode() == vault.CombinedMode {
+		return nil
+	}
 
-		gluonID, ok := user.GetGluonID(event.AddressID)
-		if !ok {
-			return fmt.Errorf("gluon ID not found for address %s", event.AddressID)
-		}
+	if bridge.imapServer == nil {
+		return fmt.Errorf("no imap server instance running")
+	}
 
-		if err := bridge.imapServer.RemoveUser(ctx, gluonID, true); err != nil {
-			return fmt.Errorf("failed to remove user from IMAP server: %w", err)
-		}
+	gluonID, ok := user.GetGluonID(event.AddressID)
+	if !ok {
+		return fmt.Errorf("gluon ID not found for address %s", event.AddressID)
+	}
 
-		if err := user.RemoveGluonID(event.AddressID, gluonID); err != nil {
-			return fmt.Errorf("failed to remove gluon ID for address: %w", err)
-		}
+	if err := bridge.imapServer.RemoveUser(ctx, gluonID, true); err != nil {
+		return fmt.Errorf("failed to remove user from IMAP server: %w", err)
+	}
+
+	if err := user.RemoveGluonID(event.AddressID, gluonID); err != nil {
+		return fmt.Errorf("failed to remove gluon ID for address: %w", err)
 	}
 
 	return nil
 }
 
-func (bridge *Bridge) handleUserRefreshed(ctx context.Context, user *user.User) error {
+func (bridge *Bridge) handleUserRefreshed(ctx context.Context, user *user.User, event events.UserRefreshed) error {
 	return safe.RLockRet(func() error {
+		if event.CancelEventPool {
+			user.CancelSyncAndEventPoll()
+		}
+
 		if err := bridge.removeIMAPUser(ctx, user, true); err != nil {
 			return fmt.Errorf("failed to remove IMAP user: %w", err)
 		}
@@ -130,3 +177,34 @@ func (bridge *Bridge) handleUserDeauth(ctx context.Context, user *user.User) {
 		bridge.logoutUser(ctx, user, false, false)
 	}, bridge.usersLock)
 }
+
+func (bridge *Bridge) handleUserBadEvent(_ context.Context, user *user.User, event events.UserBadEvent) {
+	safe.Lock(func() {
+		if rerr := bridge.reporter.ReportMessageWithContext("Failed to handle event", reporter.Context{
+			"user_id":      user.ID(),
+			"old_event_id": event.OldEventID,
+			"new_event_id": event.NewEventID,
+			"event_info":   event.EventInfo,
+			"error":        event.Error,
+			"error_type":   internal.ErrCauseType(event.Error),
+		}); rerr != nil {
+			logrus.WithError(rerr).Error("Failed to report failed event handling")
+		}
+
+		user.CancelSyncAndEventPoll()
+
+		// Disable IMAP user
+		if err := bridge.removeIMAPUser(context.Background(), user, false); err != nil {
+			logrus.WithError(err).Error("Failed to remove IMAP user")
+		}
+	}, bridge.usersLock)
+}
+
+func (bridge *Bridge) handleUncategorizedErrorEvent(event events.UncategorizedEventError) {
+	if rerr := bridge.reporter.ReportMessageWithContext("Failed to handle due to uncategorized error", reporter.Context{
+		"error_type": internal.ErrCauseType(event.Error),
+		"error":      event.Error,
+	}); rerr != nil {
+		logrus.WithError(rerr).Error("Failed to report failed event handling")
+	}
+}

internal/bridge/user_test.go

@@ -20,6 +20,8 @@ package bridge_test
 import (
 	"context"
 	"fmt"
+	"net"
+	"net/http"
 	"testing"
 	"time"
 
@@ -61,6 +63,50 @@ func TestBridge_Login(t *testing.T) {
 	})
 }
 
+func TestBridge_Login_DropConn(t *testing.T) {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+
+	dropListener := proton.NewListener(l, proton.NewDropConn)
+	defer func() { _ = dropListener.Close() }()
+
+	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			// Login the user.
+			userID, err := bridge.LoginFull(ctx, username, password, nil, nil)
+			require.NoError(t, err)
+
+			// The user is now connected.
+			require.Equal(t, []string{userID}, bridge.GetUserIDs())
+			require.Equal(t, []string{userID}, getConnectedUserIDs(t, bridge))
+		})
+
+		// Whether to allow the user to be created.
+		var allowUser bool
+
+		s.AddStatusHook(func(req *http.Request) (int, bool) {
+			// Drop any request to the users endpoint.
+			if !allowUser && req.URL.Path == "/core/v4/users" {
+				dropListener.DropAll()
+			}
+
+			// After the ping request, allow the user to be created.
+			if req.URL.Path == "/tests/ping" {
+				allowUser = true
+			}
+
+			return 0, false
+		})
+
+		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {
+			// The user is eventually connected.
+			require.Eventually(t, func() bool {
+				return len(bridge.GetUserIDs()) == 1 && len(getConnectedUserIDs(t, bridge)) == 1
+			}, 5*time.Second, 100*time.Millisecond)
+		})
+	}, server.WithListener(dropListener))
+}
+
 func TestBridge_LoginTwice(t *testing.T) {
 	withEnv(t, func(ctx context.Context, s *server.Server, netCtl *proton.NetCtl, locator bridge.Locator, storeKey []byte) {
 		withBridge(ctx, t, s.GetHostURL(), netCtl, locator, storeKey, func(bridge *bridge.Bridge, mocks *bridge.Mocks) {

internal/clientconfig/applemail.go

@@ -98,6 +98,8 @@ func saveConfigTemporarily(mc *mobileconfig.Config) (fname string, err error) {
 
 	// Make sure the temporary file is deleted.
 	go func() {
+		defer recover() //nolint:errcheck
+
 		<-time.After(10 * time.Minute)
 		_ = os.RemoveAll(dir)
 	}()

internal/constants/constants.go

@@ -44,6 +44,9 @@ var (
 
 	// DSNSentry client keys to be able to report crashes to Sentry.
 	DSNSentry = ""
+
+	// BuildEnv tags used at build time.
+	BuildEnv = ""
 )
 
 const (

internal/crash/handler.go

@@ -38,14 +38,16 @@ func (h *Handler) AddRecoveryAction(action RecoveryAction) *Handler {
 	return h
 }
 
-func (h *Handler) HandlePanic() {
+func (h *Handler) HandlePanic(r interface{}) {
 	sentry.SkipDuringUnwind()
 
-	if r := recover(); r != nil {
-		for _, action := range h.actions {
-			if err := action(r); err != nil {
-				logrus.WithError(err).Error("Failed to execute recovery action")
-			}
+	if r == nil {
+		return
+	}
+
+	for _, action := range h.actions {
+		if err := action(r); err != nil {
+			logrus.WithError(err).Error("Failed to execute recovery action")
 		}
 	}
 }

internal/crash/handler_test.go

@@ -21,38 +21,41 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestHandler(t *testing.T) {
-	var s string
+	assert.NotPanics(t, func() {
+		var s string
 
-	h := NewHandler(
-		func(r interface{}) error {
-			s += fmt.Sprintf("1: %v\n", r)
-			return nil
-		},
-		func(r interface{}) error {
-			s += fmt.Sprintf("2: %v\n", r)
-			return nil
-		},
-	)
+		h := NewHandler(
+			func(r interface{}) error {
+				s += fmt.Sprintf("1: %v\n", r)
+				return nil
+			},
+			func(r interface{}) error {
+				s += fmt.Sprintf("2: %v\n", r)
+				return nil
+			},
+		)
 
-	h.
-		AddRecoveryAction(func(r interface{}) error {
-			s += fmt.Sprintf("3: %v\n", r)
-			return nil
-		}).
-		AddRecoveryAction(func(r interface{}) error {
-			s += fmt.Sprintf("4: %v\n", r)
-			return nil
-		})
+		h.
+			AddRecoveryAction(func(r interface{}) error {
+				s += fmt.Sprintf("3: %v\n", r)
+				return nil
+			}).
+			AddRecoveryAction(func(r interface{}) error {
+				s += fmt.Sprintf("4: %v\n", r)
+				return nil
+			})
 
-	defer func() {
-		assert.Equal(t, "1: thing\n2: thing\n3: thing\n4: thing\n", s)
-	}()
+		defer func() {
+			assert.Equal(t, "1: thing\n2: thing\n3: thing\n4: thing\n", s)
+		}()
 
-	defer h.HandlePanic()
+		defer async.HandlePanic(h)
 
-	panic("thing")
+		panic("thing")
+	})
 }

internal/dialer/dialer_pinning_test.go

@@ -90,7 +90,8 @@ func TestTLSSignedCertWrongPublicKey(t *testing.T) {
 	r.Error(t, err, "expected dial to fail because of wrong public key")
 }
 
-func TestTLSSignedCertTrustedPublicKey(t *testing.T) {
+// GODT-2293 bump badssl cert and re enable this.
+func _TestTLSSignedCertTrustedPublicKey(t *testing.T) { //nolint:unused,deadcode
 	skipIfProxyIsSet(t)
 
 	_, dialer, _, checker, _ := createClientWithPinningDialer("")

internal/dialer/dialer_proxy.go

@@ -24,6 +24,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )
@@ -40,17 +41,20 @@ type ProxyTLSDialer struct {
 	allowProxy       bool
 	proxyProvider    *proxyProvider
 	proxyUseDuration time.Duration
+
+	panicHandler async.PanicHandler
 }
 
 // NewProxyTLSDialer constructs a dialer which provides a proxy-managing layer on top of an underlying dialer.
-func NewProxyTLSDialer(dialer TLSDialer, hostURL string) *ProxyTLSDialer {
+func NewProxyTLSDialer(dialer TLSDialer, hostURL string, panicHandler async.PanicHandler) *ProxyTLSDialer {
 	return &ProxyTLSDialer{
 		dialer:           dialer,
 		locker:           sync.RWMutex{},
 		directAddress:    formatAsAddress(hostURL),
 		proxyAddress:     formatAsAddress(hostURL),
-		proxyProvider:    newProxyProvider(dialer, hostURL, DoHProviders),
+		proxyProvider:    newProxyProvider(dialer, hostURL, DoHProviders, panicHandler),
 		proxyUseDuration: proxyUseDuration,
+		panicHandler:     panicHandler,
 	}
 }
 
@@ -129,6 +133,8 @@ func (d *ProxyTLSDialer) switchToReachableServer() error {
 	// This means we want to disable it again in 24 hours.
 	if d.proxyAddress == d.directAddress {
 		go func() {
+			defer async.HandlePanic(d.panicHandler)
+
 			<-time.After(d.proxyUseDuration)
 
 			d.locker.Lock()

internal/dialer/dialer_proxy_provider.go

@@ -24,6 +24,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/go-resty/resty/v2"
 	"github.com/miekg/dns"
 	"github.com/pkg/errors"
@@ -67,11 +68,13 @@ type proxyProvider struct {
 	canReachTimeout     time.Duration
 
 	lastLookup time.Time // The time at which we last attempted to find a proxy.
+
+	panicHandler async.PanicHandler
 }
 
 // newProxyProvider creates a new proxyProvider that queries the given DoH providers
 // to retrieve DNS records for the given query string.
-func newProxyProvider(dialer TLSDialer, hostURL string, providers []string) (p *proxyProvider) {
+func newProxyProvider(dialer TLSDialer, hostURL string, providers []string, panicHandler async.PanicHandler) (p *proxyProvider) {
 	p = &proxyProvider{
 		dialer:              dialer,
 		hostURL:             hostURL,
@@ -80,6 +83,7 @@ func newProxyProvider(dialer TLSDialer, hostURL string, providers []string) (p *
 		cacheRefreshTimeout: proxyCacheRefreshTimeout,
 		dohTimeout:          proxyDoHTimeout,
 		canReachTimeout:     proxyCanReachTimeout,
+		panicHandler:        panicHandler,
 	}
 
 	// Use the default DNS lookup method; this can be overridden if necessary.
@@ -109,11 +113,13 @@ func (p *proxyProvider) findReachableServer() (proxy string, err error) {
 	wg.Add(2)
 
 	go func() {
+		defer async.HandlePanic(p.panicHandler)
 		defer wg.Done()
 		apiReachable = p.canReach(p.hostURL)
 	}()
 
 	go func() {
+		defer async.HandlePanic(p.panicHandler)
 		defer wg.Done()
 		err = p.refreshProxyCache()
 	}()
@@ -150,6 +156,8 @@ func (p *proxyProvider) refreshProxyCache() error {
 	resultChan := make(chan []string)
 
 	go func() {
+		defer async.HandlePanic(p.panicHandler)
+
 		for _, provider := range p.providers {
 			if proxies, err := p.dohLookup(ctx, p.query, provider); err == nil {
 				resultChan <- proxies
@@ -203,6 +211,7 @@ func (p *proxyProvider) defaultDoHLookup(ctx context.Context, query, dohProvider
 	dataChan, errChan := make(chan []string), make(chan error)
 
 	go func() {
+		defer async.HandlePanic(p.panicHandler)
 		// Build new DNS request in RFC1035 format.
 		dnsRequest := new(dns.Msg).SetQuestion(dns.Fqdn(query), dns.TypeTXT)
 

internal/dialer/dialer_proxy_provider_test.go

@@ -23,6 +23,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/useragent"
 	r "github.com/stretchr/testify/require"
 )
@@ -31,7 +32,7 @@ func TestProxyProvider_FindProxy(t *testing.T) {
 	proxy := getTrustedServer()
 	defer closeServer(proxy)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"}, async.NoopPanicHandler{})
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{proxy.URL}, nil }
 
 	url, err := p.findReachableServer()
@@ -47,7 +48,7 @@ func TestProxyProvider_FindProxy_ChooseReachableProxy(t *testing.T) {
 	unreachableProxy := getTrustedServer()
 	closeServer(unreachableProxy)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"}, async.NoopPanicHandler{})
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) {
 		return []string{reachableProxy.URL, unreachableProxy.URL}, nil
 	}
@@ -68,7 +69,7 @@ func TestProxyProvider_FindProxy_ChooseTrustedProxy(t *testing.T) {
 	checker := NewTLSPinChecker(TrustedAPIPins)
 	dialer := NewPinningTLSDialer(NewBasicTLSDialer(""), reporter, checker)
 
-	p := newProxyProvider(dialer, "", []string{"not used"})
+	p := newProxyProvider(dialer, "", []string{"not used"}, async.NoopPanicHandler{})
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) {
 		return []string{untrustedProxy.URL, trustedProxy.URL}, nil
 	}
@@ -85,7 +86,7 @@ func TestProxyProvider_FindProxy_FailIfNoneReachable(t *testing.T) {
 	unreachableProxy2 := getTrustedServer()
 	closeServer(unreachableProxy2)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"}, async.NoopPanicHandler{})
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) {
 		return []string{unreachableProxy1.URL, unreachableProxy2.URL}, nil
 	}
@@ -105,7 +106,7 @@ func TestProxyProvider_FindProxy_FailIfNoneTrusted(t *testing.T) {
 	checker := NewTLSPinChecker(TrustedAPIPins)
 	dialer := NewPinningTLSDialer(NewBasicTLSDialer(""), reporter, checker)
 
-	p := newProxyProvider(dialer, "", []string{"not used"})
+	p := newProxyProvider(dialer, "", []string{"not used"}, async.NoopPanicHandler{})
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) {
 		return []string{untrustedProxy1.URL, untrustedProxy2.URL}, nil
 	}
@@ -115,7 +116,7 @@ func TestProxyProvider_FindProxy_FailIfNoneTrusted(t *testing.T) {
 }
 
 func TestProxyProvider_FindProxy_RefreshCacheTimeout(t *testing.T) {
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"}, async.NoopPanicHandler{})
 	p.cacheRefreshTimeout = 1 * time.Second
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { time.Sleep(2 * time.Second); return nil, nil }
 
@@ -132,7 +133,7 @@ func TestProxyProvider_FindProxy_CanReachTimeout(t *testing.T) {
 	}))
 	defer closeServer(slowProxy)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"not used"}, async.NoopPanicHandler{})
 	p.canReachTimeout = 1 * time.Second
 	p.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{slowProxy.URL}, nil }
 
@@ -144,7 +145,7 @@ func TestProxyProvider_FindProxy_CanReachTimeout(t *testing.T) {
 }
 
 func TestProxyProvider_DoHLookup_Quad9(t *testing.T) {
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider}, async.NoopPanicHandler{})
 
 	records, err := p.dohLookup(context.Background(), proxyQuery, Quad9Provider)
 	r.NoError(t, err)
@@ -155,7 +156,7 @@ func TestProxyProvider_DoHLookup_Quad9(t *testing.T) {
 // port filter. Basic functionality should be covered by other tests. Keeping
 // code here to be able to run it locally if needed.
 func DISABLEDTestProxyProviderDoHLookupQuad9Port(t *testing.T) {
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider}, async.NoopPanicHandler{})
 
 	records, err := p.dohLookup(context.Background(), proxyQuery, Quad9PortProvider)
 	r.NoError(t, err)
@@ -163,7 +164,7 @@ func DISABLEDTestProxyProviderDoHLookupQuad9Port(t *testing.T) {
 }
 
 func TestProxyProvider_DoHLookup_Google(t *testing.T) {
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider}, async.NoopPanicHandler{})
 
 	records, err := p.dohLookup(context.Background(), proxyQuery, GoogleProvider)
 	r.NoError(t, err)
@@ -173,7 +174,7 @@ func TestProxyProvider_DoHLookup_Google(t *testing.T) {
 func TestProxyProvider_DoHLookup_FindProxy(t *testing.T) {
 	skipIfProxyIsSet(t)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{Quad9Provider, GoogleProvider}, async.NoopPanicHandler{})
 
 	url, err := p.findReachableServer()
 	r.NoError(t, err)
@@ -183,7 +184,7 @@ func TestProxyProvider_DoHLookup_FindProxy(t *testing.T) {
 func TestProxyProvider_DoHLookup_FindProxyFirstProviderUnreachable(t *testing.T) {
 	skipIfProxyIsSet(t)
 
-	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"https://unreachable", Quad9Provider, GoogleProvider})
+	p := newProxyProvider(NewBasicTLSDialer(""), "", []string{"https://unreachable", Quad9Provider, GoogleProvider}, async.NoopPanicHandler{})
 
 	url, err := p.findReachableServer()
 	r.NoError(t, err)

internal/dialer/dialer_proxy_test.go

@@ -25,6 +25,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/ProtonMail/gluon/async"
 	"github.com/stretchr/testify/require"
 )
 
@@ -141,8 +142,8 @@ func TestProxyDialer_UseProxy(t *testing.T) {
 	trustedProxy := getTrustedServer()
 	defer closeServer(trustedProxy)
 
-	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders)
-	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "")
+	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders, async.NoopPanicHandler{})
+	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "", async.NoopPanicHandler{})
 	d.proxyProvider = provider
 	provider.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{trustedProxy.URL}, nil }
 
@@ -159,8 +160,8 @@ func TestProxyDialer_UseProxy_MultipleTimes(t *testing.T) {
 	proxy3 := getTrustedServer()
 	defer closeServer(proxy3)
 
-	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders)
-	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "")
+	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders, async.NoopPanicHandler{})
+	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "", async.NoopPanicHandler{})
 	d.proxyProvider = provider
 	provider.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{proxy1.URL}, nil }
 
@@ -189,8 +190,8 @@ func TestProxyDialer_UseProxy_RevertAfterTime(t *testing.T) {
 	trustedProxy := getTrustedServer()
 	defer closeServer(trustedProxy)
 
-	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders)
-	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "")
+	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders, async.NoopPanicHandler{})
+	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "", async.NoopPanicHandler{})
 	d.proxyProvider = provider
 	d.proxyUseDuration = time.Second
 
@@ -212,8 +213,8 @@ func TestProxyDialer_UseProxy_RevertAfterTime(t *testing.T) {
 func TestProxyDialer_UseProxy_RevertIfProxyStopsWorkingAndOriginalAPIIsReachable(t *testing.T) {
 	trustedProxy := getTrustedServer()
 
-	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders)
-	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "")
+	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders, async.NoopPanicHandler{})
+	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "", async.NoopPanicHandler{})
 	d.proxyProvider = provider
 	provider.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{trustedProxy.URL}, nil }
 
@@ -242,8 +243,8 @@ func TestProxyDialer_UseProxy_FindSecondAlternativeIfFirstFailsAndAPIIsStillBloc
 	proxy2 := getTrustedServer()
 	defer closeServer(proxy2)
 
-	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders)
-	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "")
+	provider := newProxyProvider(NewBasicTLSDialer(""), "", DoHProviders, async.NoopPanicHandler{})
+	d := NewProxyTLSDialer(NewBasicTLSDialer(""), "", async.NoopPanicHandler{})
 	d.proxyProvider = provider
 	provider.dohLookup = func(ctx context.Context, q, p string) ([]string, error) { return []string{proxy1.URL, proxy2.URL}, nil }
 

internal/errors.go

@@ -0,0 +1,38 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+package internal
+
+import (
+	"errors"
+	"fmt"
+)
+
+// ErrCause returns the cause of the error, the inner-most error in the wrapped chain.
+func ErrCause(err error) error {
+	cause := err
+
+	for errors.Unwrap(cause) != nil {
+		cause = errors.Unwrap(cause)
+	}
+
+	return cause
+}
+
+func ErrCauseType(err error) string {
+	return fmt.Sprintf("%T", ErrCause(err))
+}

internal/events/address.go

@@ -35,6 +35,30 @@ func (event UserAddressCreated) String() string {
 	return fmt.Sprintf("UserAddressCreated: UserID: %s, AddressID: %s, Email: %s", event.UserID, event.AddressID, logging.Sensitive(event.Email))
 }
 
+type UserAddressEnabled struct {
+	eventBase
+
+	UserID    string
+	AddressID string
+	Email     string
+}
+
+func (event UserAddressEnabled) String() string {
+	return fmt.Sprintf("UserAddressEnabled: UserID: %s, AddressID: %s, Email: %s", event.UserID, event.AddressID, logging.Sensitive(event.Email))
+}
+
+type UserAddressDisabled struct {
+	eventBase
+
+	UserID    string
+	AddressID string
+	Email     string
+}
+
+func (event UserAddressDisabled) String() string {
+	return fmt.Sprintf("UserAddressDisabled: UserID: %s, AddressID: %s, Email: %s", event.UserID, event.AddressID, logging.Sensitive(event.Email))
+}
+
 type UserAddressUpdated struct {
 	eventBase
 

internal/events/label.go

@@ -52,9 +52,8 @@ type UserLabelDeleted struct {
 
 	UserID  string
 	LabelID string
-	Name    string
 }
 
 func (event UserLabelDeleted) String() string {
-	return fmt.Sprintf("UserLabelDeleted: UserID: %s, LabelID: %s, Name: %s", event.UserID, event.LabelID, logging.Sensitive(event.Name))
+	return fmt.Sprintf("UserLabelDeleted: UserID: %s, LabelID: %s", event.UserID, event.LabelID)
 }

internal/events/serve.go

@@ -0,0 +1,76 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package events
+
+import "fmt"
+
+type IMAPServerReady struct {
+	eventBase
+
+	Port int
+}
+
+func (event IMAPServerReady) String() string {
+	return fmt.Sprintf("IMAPServerReady: Port %d", event.Port)
+}
+
+type IMAPServerStopped struct {
+	eventBase
+}
+
+func (event IMAPServerStopped) String() string {
+	return "IMAPServerStopped"
+}
+
+type IMAPServerError struct {
+	eventBase
+
+	Error error
+}
+
+func (event IMAPServerError) String() string {
+	return fmt.Sprintf("IMAPServerError: %v", event.Error)
+}
+
+type SMTPServerReady struct {
+	eventBase
+
+	Port int
+}
+
+func (event SMTPServerReady) String() string {
+	return fmt.Sprintf("SMTPServerReady: Port %d", event.Port)
+}
+
+type SMTPServerStopped struct {
+	eventBase
+}
+
+func (event SMTPServerStopped) String() string {
+	return "SMTPServerStopped"
+}
+
+type SMTPServerError struct {
+	eventBase
+
+	Error error
+}
+
+func (event SMTPServerError) String() string {
+	return fmt.Sprintf("SMTPServerError: %v", event.Error)
+}

internal/events/user.go

@@ -23,6 +23,7 @@ import (
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
 )
 
+// AllUsersLoaded is emitted when all users have been loaded.
 type AllUsersLoaded struct {
 	eventBase
 }
@@ -31,6 +32,7 @@ func (event AllUsersLoaded) String() string {
 	return "AllUsersLoaded"
 }
 
+// UserLoading is emitted when a user is being loaded.
 type UserLoading struct {
 	eventBase
 
@@ -41,6 +43,7 @@ func (event UserLoading) String() string {
 	return fmt.Sprintf("UserLoading: UserID: %s", event.UserID)
 }
 
+// UserLoadSuccess is emitted when a user has been loaded successfully.
 type UserLoadSuccess struct {
 	eventBase
 
@@ -51,6 +54,7 @@ func (event UserLoadSuccess) String() string {
 	return fmt.Sprintf("UserLoadSuccess: UserID: %s", event.UserID)
 }
 
+// UserLoadFail is emitted when a user has failed to load.
 type UserLoadFail struct {
 	eventBase
 
@@ -62,6 +66,7 @@ func (event UserLoadFail) String() string {
 	return fmt.Sprintf("UserLoadFail: UserID: %s, Error: %s", event.UserID, event.Error)
 }
 
+// UserLoggedIn is emitted when a user has logged in.
 type UserLoggedIn struct {
 	eventBase
 
@@ -72,6 +77,7 @@ func (event UserLoggedIn) String() string {
 	return fmt.Sprintf("UserLoggedIn: UserID: %s", event.UserID)
 }
 
+// UserLoggedOut is emitted when a user has logged out.
 type UserLoggedOut struct {
 	eventBase
 
@@ -82,6 +88,7 @@ func (event UserLoggedOut) String() string {
 	return fmt.Sprintf("UserLoggedOut: UserID: %s", event.UserID)
 }
 
+// UserDeauth is emitted when a user has lost its API authentication.
 type UserDeauth struct {
 	eventBase
 
@@ -92,6 +99,30 @@ func (event UserDeauth) String() string {
 	return fmt.Sprintf("UserDeauth: UserID: %s", event.UserID)
 }
 
+// UserBadEvent is emitted when a user cannot apply an event.
+type UserBadEvent struct {
+	eventBase
+
+	UserID     string
+	OldEventID string
+	NewEventID string
+	EventInfo  string
+
+	Error error
+}
+
+func (event UserBadEvent) String() string {
+	return fmt.Sprintf(
+		"UserBadEvent: UserID: %s, OldEventID: %s, NewEventID: %s, EventInfo: %v, Error: %s",
+		event.UserID,
+		event.OldEventID,
+		event.NewEventID,
+		event.EventInfo,
+		event.Error,
+	)
+}
+
+// UserDeleted is emitted when a user has been deleted.
 type UserDeleted struct {
 	eventBase
 
@@ -102,6 +133,7 @@ func (event UserDeleted) String() string {
 	return fmt.Sprintf("UserDeleted: UserID: %s", event.UserID)
 }
 
+// UserChanged is emitted when a user's data has changed (name, email, etc.).
 type UserChanged struct {
 	eventBase
 
@@ -112,16 +144,19 @@ func (event UserChanged) String() string {
 	return fmt.Sprintf("UserChanged: UserID: %s", event.UserID)
 }
 
+// UserRefreshed is emitted when an API refresh was issued for a user.
 type UserRefreshed struct {
 	eventBase
 
-	UserID string
+	UserID          string
+	CancelEventPool bool
 }
 
 func (event UserRefreshed) String() string {
 	return fmt.Sprintf("UserRefreshed: UserID: %s", event.UserID)
 }
 
+// AddressModeChanged is emitted when a user's address mode has changed.
 type AddressModeChanged struct {
 	eventBase
 
@@ -133,3 +168,37 @@ type AddressModeChanged struct {
 func (event AddressModeChanged) String() string {
 	return fmt.Sprintf("AddressModeChanged: UserID: %s, AddressMode: %s", event.UserID, event.AddressMode)
 }
+
+// UsedSpaceChanged is emitted when the storage space used by the user has changed.
+type UsedSpaceChanged struct {
+	eventBase
+
+	UserID string
+
+	UsedSpace int
+}
+
+func (event UsedSpaceChanged) String() string {
+	return fmt.Sprintf("UsedSpaceChanged: UserID: %s, UsedSpace: %v", event.UserID, event.UsedSpace)
+}
+
+type IMAPLoginFailed struct {
+	eventBase
+
+	Username string
+}
+
+func (event IMAPLoginFailed) String() string {
+	return fmt.Sprintf("IMAPLoginFailed: Username: %s", event.Username)
+}
+
+type UncategorizedEventError struct {
+	eventBase
+
+	UserID string
+	Error  error
+}
+
+func (event UncategorizedEventError) String() string {
+	return fmt.Sprintf("UncategorizedEventError: UserID: %s, Source:%T, Error: %s", event.UserID, event.Error, event.Error)
+}

internal/focus/client.go

@@ -21,9 +21,11 @@ import (
 	"context"
 	"fmt"
 	"net"
+	"path/filepath"
 
 	"github.com/Masterminds/semver/v3"
 	"github.com/ProtonMail/proton-bridge/v3/internal/focus/proto"
+	"github.com/ProtonMail/proton-bridge/v3/internal/service"
 	"github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
@@ -32,10 +34,10 @@ import (
 
 // TryRaise tries to raise the application by dialing the focus service.
 // It returns true if the service is running and the application was told to raise.
-func TryRaise() bool {
+func TryRaise(settingsPath string) bool {
 	var raised bool
 
-	if err := withClientConn(context.Background(), func(ctx context.Context, client proto.FocusClient) error {
+	if err := withClientConn(context.Background(), settingsPath, func(ctx context.Context, client proto.FocusClient) error {
 		if _, err := client.Raise(ctx, &emptypb.Empty{}); err != nil {
 			return fmt.Errorf("failed to call client.Raise: %w", err)
 		}
@@ -53,10 +55,10 @@ func TryRaise() bool {
 
 // TryVersion tries to determine the version of the running application instance.
 // It returns the version and true if the version could be determined.
-func TryVersion() (*semver.Version, bool) {
+func TryVersion(settingsPath string) (*semver.Version, bool) {
 	var version *semver.Version
 
-	if err := withClientConn(context.Background(), func(ctx context.Context, client proto.FocusClient) error {
+	if err := withClientConn(context.Background(), settingsPath, func(ctx context.Context, client proto.FocusClient) error {
 		raw, err := client.Version(ctx, &emptypb.Empty{})
 		if err != nil {
 			return fmt.Errorf("failed to call client.Version: %w", err)
@@ -78,10 +80,15 @@ func TryVersion() (*semver.Version, bool) {
 	return version, true
 }
 
-func withClientConn(ctx context.Context, fn func(context.Context, proto.FocusClient) error) error {
+func withClientConn(ctx context.Context, settingsPath string, fn func(context.Context, proto.FocusClient) error) error {
+	var config = service.Config{}
+	err := config.Load(filepath.Join(settingsPath, serverConfigFileName))
+	if err != nil {
+		return err
+	}
 	cc, err := grpc.DialContext(
 		ctx,
-		net.JoinHostPort(Host, fmt.Sprint(Port)),
+		net.JoinHostPort(Host, fmt.Sprint(config.Port)),
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)
 	if err != nil {

internal/focus/focus_test.go

@@ -18,19 +18,25 @@
 package focus
 
 import (
+	"os"
 	"testing"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/proton-bridge/v3/internal/locations"
 	"github.com/stretchr/testify/require"
 )
 
 func TestFocus_Raise(t *testing.T) {
+	tmpDir := t.TempDir()
+	locations := locations.New(newTestLocationsProvider(tmpDir), "config-name")
 	// Start the focus service.
-	service, err := NewService(semver.MustParse("1.2.3"))
+	service, err := NewService(locations, semver.MustParse("1.2.3"), nil)
 	require.NoError(t, err)
 
+	settingsFolder, err := locations.ProvideSettingsPath()
+	require.NoError(t, err)
 	// Try to dial it, it should succeed.
-	require.True(t, TryRaise())
+	require.True(t, TryRaise(settingsFolder))
 
 	// The service should report a raise call.
 	<-service.GetRaiseCh()
@@ -39,16 +45,60 @@ func TestFocus_Raise(t *testing.T) {
 	service.Close()
 
 	// Try to dial it, it should fail.
-	require.False(t, TryRaise())
+	require.False(t, TryRaise(settingsFolder))
 }
 
 func TestFocus_Version(t *testing.T) {
+	tmpDir := t.TempDir()
+	locations := locations.New(newTestLocationsProvider(tmpDir), "config-name")
 	// Start the focus service.
-	_, err := NewService(semver.MustParse("1.2.3"))
+	_, err := NewService(locations, semver.MustParse("1.2.3"), nil)
+	require.NoError(t, err)
+
+	settingsFolder, err := locations.ProvideSettingsPath()
 	require.NoError(t, err)
 
 	// Try to dial it, it should succeed.
-	version, ok := TryVersion()
+	version, ok := TryVersion(settingsFolder)
 	require.True(t, ok)
 	require.Equal(t, "1.2.3", version.String())
 }
+
+type TestLocationsProvider struct {
+	config, data, cache string
+}
+
+func newTestLocationsProvider(dir string) *TestLocationsProvider {
+	config, err := os.MkdirTemp(dir, "config")
+	if err != nil {
+		panic(err)
+	}
+
+	data, err := os.MkdirTemp(dir, "data")
+	if err != nil {
+		panic(err)
+	}
+
+	cache, err := os.MkdirTemp(dir, "cache")
+	if err != nil {
+		panic(err)
+	}
+
+	return &TestLocationsProvider{
+		config: config,
+		data:   data,
+		cache:  cache,
+	}
+}
+
+func (provider *TestLocationsProvider) UserConfig() string {
+	return provider.config
+}
+
+func (provider *TestLocationsProvider) UserData() string {
+	return provider.data
+}
+
+func (provider *TestLocationsProvider) UserCache() string {
+	return provider.cache
+}

internal/focus/proto/focus.pb.go

@@ -24,12 +24,11 @@
 package proto
 
 import (
-	reflect "reflect"
-	sync "sync"
-
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	emptypb "google.golang.org/protobuf/types/known/emptypb"
+	reflect "reflect"
+	sync "sync"
 )
 
 const (
@@ -105,7 +104,7 @@ var file_focus_proto_rawDesc = []byte{
 	0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x3d, 0x5a, 0x3b, 0x67,
 	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x6e,
 	0x4d, 0x61, 0x69, 0x6c, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x6e, 0x2d, 0x62, 0x72, 0x69, 0x64,
-	0x67, 0x65, 0x2f, 0x76, 0x32, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x66,
+	0x67, 0x65, 0x2f, 0x76, 0x33, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x66,
 	0x6f, 0x63, 0x75, 0x73, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
 	0x6f, 0x33,
 }

internal/focus/proto/focus_grpc.pb.go

@@ -8,7 +8,6 @@ package proto
 
 import (
 	context "context"
-
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"

internal/focus/service.go

@@ -24,17 +24,18 @@ import (
 	"net"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/gluon/async"
 	"github.com/ProtonMail/proton-bridge/v3/internal/focus/proto"
+	"github.com/ProtonMail/proton-bridge/v3/internal/service"
 	"github.com/sirupsen/logrus"
 	"google.golang.org/grpc"
 	"google.golang.org/protobuf/types/known/emptypb"
 )
 
-// Host is the local host to listen on.
-const Host = "127.0.0.1"
-
-// Port is the port to listen on.
-var Port = 1042 // nolint:gochecknoglobals
+const (
+	Host                 = "127.0.0.1"
+	serverConfigFileName = "grpcFocusServerConfig.json"
+)
 
 // Service is a gRPC service that can be used to raise the application.
 type Service struct {
@@ -43,30 +44,48 @@ type Service struct {
 	server  *grpc.Server
 	raiseCh chan struct{}
 	version *semver.Version
+
+	panicHandler async.PanicHandler
 }
 
 // NewService creates a new focus service.
 // It listens on the local host and port 1042 (by default).
-func NewService(version *semver.Version) (*Service, error) {
-	service := &Service{
-		server:  grpc.NewServer(),
-		raiseCh: make(chan struct{}, 1),
-		version: version,
+func NewService(locator service.Locator, version *semver.Version, panicHandler async.PanicHandler) (*Service, error) {
+	serv := &Service{
+		server:       grpc.NewServer(),
+		raiseCh:      make(chan struct{}, 1),
+		version:      version,
+		panicHandler: panicHandler,
 	}
 
-	proto.RegisterFocusServer(service.server, service)
+	proto.RegisterFocusServer(serv.server, serv)
 
-	if listener, err := net.Listen("tcp", net.JoinHostPort(Host, fmt.Sprint(Port))); err != nil {
-		logrus.WithError(err).Warn("Failed to start focus service")
+	if listener, err := net.Listen("tcp", net.JoinHostPort(Host, fmt.Sprint(0))); err != nil {
+		logrus.WithError(err).Warn("Failed to start focus serv")
 	} else {
+		config := service.Config{}
+		// retrieve the port assigned by the system, so that we can put it in the config file.
+		address, ok := listener.Addr().(*net.TCPAddr)
+		if !ok {
+			return nil, fmt.Errorf("could not retrieve gRPC service listener address")
+		}
+		config.Port = address.Port
+		if path, err := service.SaveGRPCServerConfigFile(locator, &config, serverConfigFileName); err != nil {
+			logrus.WithError(err).WithField("path", path).Warn("Could not write focus gRPC service config file")
+		} else {
+			logrus.WithField("path", path).Info("Successfully saved gRPC Focus service config file")
+		}
+
 		go func() {
-			if err := service.server.Serve(listener); err != nil {
+			defer async.HandlePanic(serv.panicHandler)
+
+			if err := serv.server.Serve(listener); err != nil {
 				fmt.Printf("failed to serve: %v", err)
 			}
 		}()
 	}
 
-	return service, nil
+	return serv, nil
 }
 
 // Raise implements the gRPC FocusService interface; it raises the application.
@@ -90,6 +109,8 @@ func (service *Service) GetRaiseCh() <-chan struct{} {
 // Close closes the service.
 func (service *Service) Close() {
 	go func() {
+		defer async.HandlePanic(service.panicHandler)
+
 		// we do this in a goroutine, as on Windows, the gRPC shutdown may take minutes if something tries to
 		// interact with it in an invalid way (e.g. HTTP GET request from a Qt QNetworkManager instance).
 		service.server.Stop()

internal/frontend/.gitignore

@@ -10,5 +10,5 @@ rcc_cgo_*.go
 *.qmlc
 
 # Generated file
-bridge-gui/bridge-gui/Version.h
+bridge-gui/bridge-gui/BuildConfig.h
 bridge-gui/bridge-gui/Resources.rc

internal/frontend/bridge-gui/FindQt.cmake

@@ -1,8 +1,8 @@
-find_program(QMAKE_EXE "qmake")
+find_program(QMAKE_EXE NAMES "qmake" "qmake6")
 if (NOT QMAKE_EXE)
-    message(FATAL_ERROR "Could not locate qmake executable, make sur you have Qt 6 installed in that qmake is in your PATH environment variable.")
+    message(FATAL_ERROR "Could not locate qmake executable, make sure you have Qt 6 installed in that qmake is in your PATH environment variable.")
 endif()
 message(STATUS "Found qmake at ${QMAKE_EXE}")
 execute_process(COMMAND "${QMAKE_EXE}" -query QT_INSTALL_PREFIX OUTPUT_VARIABLE QT_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
 
-set(CMAKE_PREFIX_PATH  ${QT_DIR} ${CMAKE_PREFIX_PATH})
+set(CMAKE_PREFIX_PATH  ${QT_DIR} ${CMAKE_PREFIX_PATH})

internal/frontend/bridge-gui/bridge-gui-tester/GRPCQtProxy.cpp

@@ -53,6 +53,7 @@ void GRPCQtProxy::connectSignals() {
     connect(this, &GRPCQtProxy::logoutUserReceived, &usersTab, &UsersTab::logoutUser);
     connect(this, &GRPCQtProxy::setUserSplitModeReceived, &usersTab, &UsersTab::setUserSplitMode);
     connect(this, &GRPCQtProxy::configureUserAppleMailReceived, &usersTab, &UsersTab::configureUserAppleMail);
+    connect(this, &GRPCQtProxy::sendBadEventUserFeedbackReceived, &usersTab, &UsersTab::processBadEventUserFeedback);
 }
 
 
@@ -178,6 +179,15 @@ void GRPCQtProxy::setUserSplitMode(QString const &userID, bool makeItActive) {
 }
 
 
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+/// \param[in] doResync Did the user request a resync?
+//****************************************************************************************************************************************************
+void GRPCQtProxy::sendBadEventUserFeedback(QString const &userID, bool doResync) {
+    emit sendBadEventUserFeedbackReceived(userID, doResync);
+}
+
+
 //****************************************************************************************************************************************************
 /// \param[in] userID The userID.
 //****************************************************************************************************************************************************

internal/frontend/bridge-gui/bridge-gui-tester/GRPCQtProxy.h

@@ -52,6 +52,7 @@ public: // member functions.
     void setDiskCachePath(QString const &path); ///< Forwards a setDiskCachePath call via a Qt signal.
     void setIsAutomaticUpdateOn(bool on); ///< Forwards a SetIsAutomaticUpdateOn call via a Qt signal.
     void setUserSplitMode(QString const &userID, bool makeItActive); ///< Forwards a setUserSplitMode call via a Qt signal.
+    void sendBadEventUserFeedback(QString const &userID, bool doResync); ///< Forwards a sendBadEventUserFeedback call via a Qt signal.
     void logoutUser(QString const &userID); ///< Forwards a logoutUser call via a Qt signal.
     void removeUser(QString const &userID); ///< Forwards a removeUser call via a Qt signal.
     void configureUserAppleMail(QString const &userID, QString const &address); ///< Forwards a configureUserAppleMail call via a Qt signal.
@@ -72,6 +73,7 @@ signals:
     void setDiskCachePathReceived(QString const &path); ///< Signal for the setDiskCachePath gRPC call.
     void setIsAutomaticUpdateOnReceived(bool on); ///< Signal for the SetIsAutomaticUpdateOn gRPC call.
     void setUserSplitModeReceived(QString const &userID, bool makeItActive); ///< Signal for the SetUserSplitModeReceived gRPC call.
+    void sendBadEventUserFeedbackReceived(QString const &userID, bool doResync); ///< Signal for the SendBadEventUserFeedback gRPC call.
     void logoutUserReceived(QString const &userID); ///< Signal for the LogoutUserReceived gRPC call.
     void removeUserReceived(QString const &userID); ///< Signal for the RemoveUserReceived gRPC call.
     void configureUserAppleMailReceived(QString const &userID, QString const &address); ///< Signal for the ConfigureAppleMail gRPC call.

internal/frontend/bridge-gui/bridge-gui-tester/GRPCServerWorker.cpp

@@ -20,6 +20,7 @@
 #include "Cert.h"
 #include "GRPCService.h"
 #include <bridgepp/Exception/Exception.h>
+#include <bridgepp/BridgeUtils.h>
 #include <bridgepp/GRPC/GRPCUtils.h>
 #include <bridgepp/GRPC/GRPCConfig.h>
 
@@ -33,7 +34,6 @@ using namespace grpc;
 //****************************************************************************************************************************************************
 GRPCServerWorker::GRPCServerWorker(QObject *parent)
     : Worker(parent) {
-
 }
 
 
@@ -81,7 +81,7 @@ void GRPCServerWorker::run() {
 
         config.port = port;
         QString err;
-        if (!config.save(grpcServerConfigPath(), &err)) {
+        if (!config.save(grpcServerConfigPath(bridgepp::userConfigDir()), &err)) {
             throw Exception(QString("Could not save gRPC server config. %1").arg(err));
         }
 

internal/frontend/bridge-gui/bridge-gui-tester/GRPCService.cpp

@@ -86,9 +86,10 @@ Status GRPCService::AddLogEntry(ServerContext *, AddLogEntryRequest const *reque
 //****************************************************************************************************************************************************
 /// \return The status for the call.
 //****************************************************************************************************************************************************
-Status GRPCService::GuiReady(ServerContext *, Empty const *, Empty *) {
+Status GRPCService::GuiReady(ServerContext *, Empty const *, GuiReadyResponse *response) {
     app().log().debug(__FUNCTION__);
     app().mainWindow().settingsTab().setGUIReady(true);
+    response->set_showsplashscreen(app().mainWindow().settingsTab().showSplashScreen());
     return Status::OK;
 }
 
@@ -124,28 +125,6 @@ Status GRPCService::ShowOnStartup(ServerContext *, Empty const *, BoolValue *res
 }
 
 
-//****************************************************************************************************************************************************
-/// \param[out] response The response.
-/// \return The status for the call.
-//****************************************************************************************************************************************************
-Status GRPCService::ShowSplashScreen(ServerContext *, Empty const *, BoolValue *response) {
-    app().log().debug(__FUNCTION__);
-    response->set_value(app().mainWindow().settingsTab().showSplashScreen());
-    return Status::OK;
-}
-
-
-//****************************************************************************************************************************************************
-/// \param[out] response The response.
-/// \return The status for the call.
-//****************************************************************************************************************************************************
-Status GRPCService::IsFirstGuiStart(ServerContext *, Empty const *, BoolValue *response) {
-    app().log().debug(__FUNCTION__);
-    response->set_value(app().mainWindow().settingsTab().isFirstGUIStart());
-    return Status::OK;
-}
-
-
 //****************************************************************************************************************************************************
 /// \param[in] request The request.
 /// \return The status for the call.
@@ -213,17 +192,6 @@ Status GRPCService::IsAllMailVisible(ServerContext *, Empty const *request, Bool
 }
 
 
-//****************************************************************************************************************************************************
-/// \param[out] response The response.
-/// \return The status for the call.
-//****************************************************************************************************************************************************
-Status GRPCService::GoOs(ServerContext *, Empty const *, StringValue *response) {
-    app().log().debug(__FUNCTION__);
-    response->set_value(app().mainWindow().settingsTab().os().toStdString());
-    return Status::OK;
-}
-
-
 //****************************************************************************************************************************************************
 /// \return The status for the call.
 //****************************************************************************************************************************************************
@@ -715,6 +683,17 @@ Status GRPCService::SetUserSplitMode(ServerContext *, UserSplitModeRequest const
 }
 
 
+//****************************************************************************************************************************************************
+/// \param[in] request The request.
+/// \return The status for the call.
+//****************************************************************************************************************************************************
+Status GRPCService::SendBadEventUserFeedback(ServerContext *, UserBadEventFeedbackRequest const *request, Empty *) {
+    app().log().debug(__FUNCTION__);
+    qtProxy_.sendBadEventUserFeedback(QString::fromStdString(request->userid()), request->doresync());
+    return Status::OK;
+}
+
+
 //****************************************************************************************************************************************************
 /// \param[in] request The request.
 /// \return The status for the call.
@@ -752,7 +731,7 @@ Status GRPCService::ConfigureUserAppleMail(ServerContext *, ConfigureAppleMailRe
 /// \param[in] writer The writer
 /// \return The status for the call.
 //****************************************************************************************************************************************************
-Status GRPCService::RunEventStream(ServerContext *, EventStreamRequest const *request, ServerWriter<StreamEvent> *writer) {
+Status GRPCService::RunEventStream(ServerContext *ctx, EventStreamRequest const *request, ServerWriter<StreamEvent> *writer) {
     app().log().debug(__FUNCTION__);
     {
         QMutexLocker locker(&eventStreamMutex_);
@@ -767,19 +746,19 @@ Status GRPCService::RunEventStream(ServerContext *, EventStreamRequest const *re
 
     while (true) {
         QMutexLocker locker(&eventStreamMutex_);
-        if (eventStreamShouldStop_) {
+        if (eventStreamShouldStop_ || ctx->IsCancelled()) {
             qtProxy_.setIsStreaming(false);
             qtProxy_.setClientPlatform(QString());
             isStreaming_ = false;
             return Status::OK;
         }
 
-
         if (eventQueue_.isEmpty()) {
             locker.unlock();
             QThread::msleep(100);
             continue;
         }
+
         SPStreamEvent const event = eventQueue_.front();
         eventQueue_.pop_front();
         locker.unlock();

internal/frontend/bridge-gui/bridge-gui-tester/GRPCService.h

@@ -41,19 +41,16 @@ public: // member functions.
     bool isStreaming() const; ///< Check if the service is currently streaming events.
     grpc::Status CheckTokens(::grpc::ServerContext *context, ::google::protobuf::StringValue const *request, ::google::protobuf::StringValue *response) override;
     grpc::Status AddLogEntry(::grpc::ServerContext *, ::grpc::AddLogEntryRequest const *request, ::google::protobuf::Empty *) override;
-    grpc::Status GuiReady(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::Empty *) override;
+    grpc::Status GuiReady(::grpc::ServerContext *, ::google::protobuf::Empty const *, grpc::GuiReadyResponse *response) override;
     grpc::Status Quit(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::Empty *) override;
     grpc::Status Restart(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::Empty *) override;
     grpc::Status ShowOnStartup(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::BoolValue *response) override;
-    grpc::Status ShowSplashScreen(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::BoolValue *response) override;
-    grpc::Status IsFirstGuiStart(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::BoolValue *response) override;
     grpc::Status SetIsAutostartOn(::grpc::ServerContext *, ::google::protobuf::BoolValue const *request, ::google::protobuf::Empty *) override;
     grpc::Status IsAutostartOn(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::BoolValue *response) override;
     grpc::Status SetIsBetaEnabled(::grpc::ServerContext *, ::google::protobuf::BoolValue const *request, ::google::protobuf::Empty *) override;
     grpc::Status IsBetaEnabled(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::BoolValue *response) override;
     grpc::Status SetIsAllMailVisible(::grpc::ServerContext *context, ::google::protobuf::BoolValue const *request, ::google::protobuf::Empty *response) override;
     grpc::Status IsAllMailVisible(::grpc::ServerContext *context, ::google::protobuf::Empty const *request, ::google::protobuf::BoolValue *response) override;
-    grpc::Status GoOs(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::StringValue *response) override;
     grpc::Status TriggerReset(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::Empty *) override;
     grpc::Status Version(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::StringValue *response) override;
     grpc::Status LogsPath(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::StringValue *response) override;
@@ -90,12 +87,12 @@ public: // member functions.
     grpc::Status GetUserList(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::grpc::UserListResponse *response) override;
     grpc::Status GetUser(::grpc::ServerContext *, ::google::protobuf::StringValue const *request, ::grpc::User *response) override;
     grpc::Status SetUserSplitMode(::grpc::ServerContext *, ::grpc::UserSplitModeRequest const *request, ::google::protobuf::Empty *) override;
+    grpc::Status SendBadEventUserFeedback(::grpc::ServerContext *context, ::grpc::UserBadEventFeedbackRequest const *request, ::google::protobuf::Empty *response) override;
     grpc::Status LogoutUser(::grpc::ServerContext *, ::google::protobuf::StringValue const *request, ::google::protobuf::Empty *) override;
     grpc::Status RemoveUser(::grpc::ServerContext *, ::google::protobuf::StringValue const *request, ::google::protobuf::Empty *) override;
     grpc::Status ConfigureUserAppleMail(::grpc::ServerContext *, ::grpc::ConfigureAppleMailRequest const *request, ::google::protobuf::Empty *) override;
-    grpc::Status RunEventStream(::grpc::ServerContext *, ::grpc::EventStreamRequest const *request, ::grpc::ServerWriter<::grpc::StreamEvent> *writer) override;
+    grpc::Status RunEventStream(::grpc::ServerContext *ctx, ::grpc::EventStreamRequest const *request, ::grpc::ServerWriter<::grpc::StreamEvent> *writer) override;
     grpc::Status StopEventStream(::grpc::ServerContext *, ::google::protobuf::Empty const *, ::google::protobuf::Empty *) override;
-
     bool sendEvent(bridgepp::SPStreamEvent const &event); ///< Queue an event for sending through the event stream.
 
 private: // member functions

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/SettingsTab.cpp

@@ -138,14 +138,6 @@ bool SettingsTab::showSplashScreen() const {
 }
 
 
-//****************************************************************************************************************************************************
-/// \return true iff the 'Show Splash Screen' check box is checked.
-//****************************************************************************************************************************************************
-bool SettingsTab::isFirstGUIStart() const {
-    return ui_.checkIsFirstGUIStart->isChecked();
-}
-
-
 //****************************************************************************************************************************************************
 /// \return true iff autosart is on.
 //****************************************************************************************************************************************************
@@ -450,7 +442,6 @@ void SettingsTab::resetUI() {
     ui_.editCurrentEmailClient->setText("Thunderbird/102.0.3");
     ui_.checkShowOnStartup->setChecked(true);
     ui_.checkShowSplashScreen->setChecked(false);
-    ui_.checkIsFirstGUIStart->setChecked(false);
     ui_.checkAutostart->setChecked(true);
     ui_.checkBetaEnabled->setChecked(true);
     ui_.checkAllMailVisible->setChecked(true);

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/SettingsTab.h

@@ -42,7 +42,6 @@ public: // member functions.
     void setGUIReady(bool ready); ///< Set the GUI as ready.
     bool showOnStartup() const; ///< Get the value for the 'Show On Startup' check.
     bool showSplashScreen() const; ///< Get the value for the 'Show Splash Screen' check.
-    bool isFirstGUIStart() const; ///< Get the value for the 'Is First GUI Start' check.
     bool isAutostartOn() const; ///< Get the value for the 'Autostart' check.
     bool isBetaEnabled() const; ///< Get the value for the 'Beta Enabled' check.
     bool isAllMailVisible() const; ///< Get the value for the 'All Mail Visible' check.

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/SettingsTab.ui

@@ -124,16 +124,6 @@
            </widget>
           </item>
           <item row="0" column="2">
-           <widget class="QCheckBox" name="checkIsFirstGUIStart">
-            <property name="text">
-             <string>Is FIrst GUI Start</string>
-            </property>
-            <property name="checked">
-             <bool>false</bool>
-            </property>
-           </widget>
-          </item>
-          <item row="1" column="0">
            <widget class="QCheckBox" name="checkAutostart">
             <property name="text">
              <string>Autostart</string>
@@ -143,7 +133,7 @@
             </property>
            </widget>
           </item>
-          <item row="1" column="1">
+          <item row="1" column="0">
            <widget class="QCheckBox" name="checkBetaEnabled">
             <property name="text">
              <string>Beta Enabled</string>
@@ -153,14 +143,17 @@
             </property>
            </widget>
           </item>
-          <item row="2" column="1">
-           <widget class="QCheckBox" name="checkAutomaticUpdate">
+          <item row="1" column="1">
+           <widget class="QCheckBox" name="checkAllMailVisible">
             <property name="text">
-             <string>Automatic Update</string>
+             <string>Show 'All Mail'</string>
+            </property>
+            <property name="checked">
+             <bool>false</bool>
             </property>
            </widget>
           </item>
-          <item row="2" column="0">
+          <item row="1" column="2">
            <widget class="QCheckBox" name="checkDarkTheme">
             <property name="text">
              <string>Dark Theme</string>
@@ -170,13 +163,10 @@
             </property>
            </widget>
           </item>
-          <item row="1" column="2">
-           <widget class="QCheckBox" name="checkAllMailVisible">
+          <item row="2" column="0">
+           <widget class="QCheckBox" name="checkAutomaticUpdate">
             <property name="text">
-             <string>Show 'All Mail'</string>
-            </property>
-            <property name="checked">
-             <bool>false</bool>
+             <string>Automatic Update</string>
             </property>
            </widget>
           </item>
@@ -901,12 +891,6 @@
   <tabstop>editCurrentEmailClient</tabstop>
   <tabstop>checkShowOnStartup</tabstop>
   <tabstop>checkShowSplashScreen</tabstop>
-  <tabstop>checkIsFirstGUIStart</tabstop>
-  <tabstop>checkAutostart</tabstop>
-  <tabstop>checkBetaEnabled</tabstop>
-  <tabstop>checkAllMailVisible</tabstop>
-  <tabstop>checkDarkTheme</tabstop>
-  <tabstop>checkAutomaticUpdate</tabstop>
   <tabstop>editHostname</tabstop>
   <tabstop>spinPortIMAP</tabstop>
   <tabstop>spinPortSMTP</tabstop>

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/UsersTab.cpp

@@ -51,7 +51,12 @@ UsersTab::UsersTab(QWidget *parent)
     connect(ui_.buttonEditUser, &QPushButton::clicked, this, &UsersTab::onEditUserButton);
     connect(ui_.tableUserList, &QTableView::doubleClicked, this, &UsersTab::onEditUserButton);
     connect(ui_.buttonRemoveUser, &QPushButton::clicked, this, &UsersTab::onRemoveUserButton);
+    connect(ui_.buttonUserBadEvent, &QPushButton::clicked, this, &UsersTab::onSendUserBadEvent);
+    connect(ui_.buttonImapLoginFailed, &QPushButton::clicked, this, &UsersTab::onSendIMAPLoginFailedEvent);
+    connect(ui_.buttonUsedBytesChanged, &QPushButton::clicked, this, &UsersTab::onSendUsedBytesChangedEvent);
     connect(ui_.checkUsernamePasswordError, &QCheckBox::toggled, this, &UsersTab::updateGUIState);
+    connect(ui_.checkSync, &QCheckBox::toggled, this, &UsersTab::onCheckSyncToggled);
+    connect(ui_.sliderSync, &QSlider::valueChanged, this, &UsersTab::onSliderSyncValueChanged);
 
     users_.append(randomUser());
 
@@ -96,6 +101,8 @@ void UsersTab::onEditUserButton() {
     if (grpc.isStreaming()) {
         grpc.sendEvent(newUserChangedEvent(user->id()));
     }
+
+    this->updateGUIState();
 }
 
 
@@ -125,14 +132,103 @@ void UsersTab::onSelectionChanged(QItemSelection, QItemSelection) {
 }
 
 
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+void UsersTab::onSendUserBadEvent() {
+    SPUser const user = selectedUser();
+    int const index = this->selectedIndex();
+
+    if (!user) {
+        app().log().error(QString("%1 failed. Unkown user.").arg(__FUNCTION__));
+        return;
+    }
+
+    if (UserState::SignedOut == user->state()) {
+        app().log().error(QString("%1 failed. User is already signed out").arg(__FUNCTION__));
+    }
+
+    GRPCService &grpc = app().grpc();
+    if (grpc.isStreaming()) {
+        QString const userID = user->id();
+        grpc.sendEvent(newUserChangedEvent(userID));
+        grpc.sendEvent(newUserBadEvent(userID, ui_.editUserBadEvent->text()));
+    }
+
+    this->updateGUIState();
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+void UsersTab::onSendUsedBytesChangedEvent() {
+    SPUser const user = selectedUser();
+    int const index = this->selectedIndex();
+
+    if (!user) {
+        app().log().error(QString("%1 failed. Unkown user.").arg(__FUNCTION__));
+        return;
+    }
+
+    if (UserState::Connected != user->state()) {
+        app().log().error(QString("%1 failed. User is not connected").arg(__FUNCTION__));
+    }
+
+    qint64 const usedBytes = qint64(ui_.spinUsedBytes->value());
+    user->setUsedBytes(usedBytes);
+    users_.touch(index);
+
+    GRPCService &grpc = app().grpc();
+    if (grpc.isStreaming()) {
+        QString const userID = user->id();
+        grpc.sendEvent(newUsedBytesChangedEvent(userID, usedBytes));
+    }
+
+    this->updateGUIState();
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+void UsersTab::onSendIMAPLoginFailedEvent() {
+    GRPCService &grpc = app().grpc();
+    if (grpc.isStreaming()) {
+        grpc.sendEvent(newIMAPLoginFailedEvent(ui_.editIMAPLoginFailedUsername->text()));
+    }
+
+    this->updateGUIState();
+}
+
+
 //****************************************************************************************************************************************************
 //
 //****************************************************************************************************************************************************
 void UsersTab::updateGUIState() {
-    bool const hasSelectedUser = ui_.tableUserList->selectionModel()->hasSelection();
+    SPUser const user = selectedUser();
+    bool const hasSelectedUser = user.get();
+    UserState const state = user ? user->state() : UserState::SignedOut;
+
     ui_.buttonEditUser->setEnabled(hasSelectedUser);
     ui_.buttonRemoveUser->setEnabled(hasSelectedUser);
+    ui_.groupBoxBadEvent->setEnabled(hasSelectedUser && (UserState::SignedOut != state));
+    ui_.groupBoxUsedSpace->setEnabled(hasSelectedUser && (UserState::Connected == state));
     ui_.editUsernamePasswordError->setEnabled(ui_.checkUsernamePasswordError->isChecked());
+    ui_.spinUsedBytes->setValue(user ? user->usedBytes() : 0.0);
+    ui_.groupboxSync->setEnabled(user.get());
+
+    if (user)
+        ui_.editIMAPLoginFailedUsername->setText(user->primaryEmailOrUsername());
+
+    QSignalBlocker b(ui_.checkSync);
+    bool const syncing = user && user->isSyncing();
+    ui_.checkSync->setChecked(syncing);
+    b = QSignalBlocker(ui_.sliderSync);
+    ui_.sliderSync->setEnabled(syncing);
+    qint32 const progressPercent = syncing ? qint32(user->syncProgress() * 100.0f) : 0;
+    ui_.sliderSync->setValue(progressPercent);
+    ui_.labelSync->setText(syncing ? QString("%1%").arg(progressPercent) : "" );
 }
 
 
@@ -309,5 +405,71 @@ void UsersTab::removeUser(QString const &userID) {
 //****************************************************************************************************************************************************
 void UsersTab::configureUserAppleMail(QString const &userID, QString const &address) {
     app().log().info(QString("Apple mail configuration was requested for user %1, address %2").arg(userID, address));
-
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+/// \param[in] doResync Did the user request a resync?
+//****************************************************************************************************************************************************
+void UsersTab::processBadEventUserFeedback(QString const &userID, bool doResync) {
+    app().log().info(QString("Feedback received for bad event: doResync = %1, userID = %2").arg(doResync ? "true" : "false", userID));
+    if (doResync) {
+        return; // we do not do any form of emulation for resync.
+    }
+
+    SPUser user = users_.userWithID(userID);
+    if (!user) {
+        app().log().error(QString("%1(): could not find user with id %1.").arg(__func__, userID));
+    }
+
+    user->setState(UserState::SignedOut);
+    users_.touch(userID);
+    GRPCService &grpc = app().grpc();
+    if (grpc.isStreaming()) {
+        grpc.sendEvent(newUserChangedEvent(userID));
+    }
+
+    this->updateGUIState();
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] checked Is the sync checkbox checked?
+//****************************************************************************************************************************************************
+void UsersTab::onCheckSyncToggled(bool checked) {
+    SPUser const user = this->selectedUser();
+    if ((!user) || (user->isSyncing() == checked)) {
+        return;
+    }
+
+    user->setIsSyncing(checked);
+    user->setSyncProgress(0.0);
+    GRPCService &grpc = app().grpc();
+
+    // we do not apply delay for these event.
+    if (checked) {
+        grpc.sendEvent(newSyncStartedEvent(user->id()));
+        grpc.sendEvent(newSyncProgressEvent(user->id(), 0.0, 1, 1));
+    } else {
+        grpc.sendEvent(newSyncFinishedEvent(user->id()));
+    }
+
+    this->updateGUIState();
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] value The value for the slider.
+//****************************************************************************************************************************************************
+void UsersTab::onSliderSyncValueChanged(int value) {
+    SPUser const user = this->selectedUser();
+    if ((!user) || (!user->isSyncing()) || user->syncProgress() == value) {
+        return;
+    }
+
+    double const progress = value / 100.0;
+    user->setSyncProgress(progress);
+    app().grpc().sendEvent(newSyncProgressEvent(user->id(), progress, 1, 1));  // we do not simulate elapsed & remaining.
+    this->updateGUIState();
 }

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/UsersTab.h

@@ -54,12 +54,18 @@ public slots:
     void logoutUser(QString const &userID); ///< slot for the logging out of a user.
     void removeUser(QString const &userID); ///< Slot for the removal of a user.
     void configureUserAppleMail(QString const &userID, QString const &address); ///< Slot for the configuration of Apple mail.
+    void processBadEventUserFeedback(QString const& userID, bool doResync); ///< Slot for the reception of a bad event user feedback.
 
 private slots:
     void onAddUserButton(); ///< Add a user to the user list.
     void onEditUserButton(); ///< Edit the currently selected user.
     void onRemoveUserButton(); ///< Remove the currently selected user.
     void onSelectionChanged(QItemSelection, QItemSelection); ///< Slot for the change of the selection.
+    void onSendUserBadEvent(); ///< Slot for the 'Send Bad Event Error' button.
+    void onSendUsedBytesChangedEvent(); ///< Slot for the 'Send Used Bytes Changed Event' button.
+    void onSendIMAPLoginFailedEvent(); ///< Slot for the 'Send IMAP Login failure Event' button.
+    void onCheckSyncToggled(bool checked); ///< Slot for the 'Synchronizing' check box.
+    void onSliderSyncValueChanged(int value); ///< Slot for the sync 'Progress' slider.
     void updateGUIState(); ///< Update the GUI state.
 
 private: // member functions.

internal/frontend/bridge-gui/bridge-gui-tester/Tabs/UsersTab.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1225</width>
-    <height>717</height>
+    <width>1221</width>
+    <height>894</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -67,7 +67,176 @@
       </spacer>
      </item>
      <item>
-      <widget class="QGroupBox" name="groupBox">
+      <widget class="QGroupBox" name="groupboxSync">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="title">
+        <string>Sync</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_5">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="1,0">
+          <item>
+           <widget class="QCheckBox" name="checkSync">
+            <property name="text">
+             <string>Synchronizing</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLabel" name="labelSync">
+            <property name="text">
+             <string>0%</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <widget class="QSlider" name="sliderSync">
+          <property name="maximum">
+           <number>100</number>
+          </property>
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="tickInterval">
+           <number>10</number>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxBadEvent">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="title">
+        <string>Bad Event</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_3">
+          <item>
+           <widget class="QLineEdit" name="editUserBadEvent">
+            <property name="minimumSize">
+             <size>
+              <width>200</width>
+              <height>0</height>
+             </size>
+            </property>
+            <property name="text">
+             <string/>
+            </property>
+            <property name="placeholderText">
+             <string>error message</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="buttonUserBadEvent">
+            <property name="text">
+             <string>Send</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxUsedSpace">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="title">
+        <string>Used Bytes Changed</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_4">
+        <item>
+         <layout class="QHBoxLayout" name="hBoxUsedBytes" stretch="1,0">
+          <item>
+           <widget class="QDoubleSpinBox" name="spinUsedBytes">
+            <property name="buttonSymbols">
+             <enum>QAbstractSpinBox::NoButtons</enum>
+            </property>
+            <property name="decimals">
+             <number>0</number>
+            </property>
+            <property name="maximum">
+             <double>1000000000000000.000000000000000</double>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="buttonUsedBytesChanged">
+            <property name="text">
+             <string>Send</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxIMAPLoginFailed">
+       <property name="minimumSize">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="title">
+        <string>IMAP Login Failure</string>
+       </property>
+       <layout class="QVBoxLayout" name="verticalLayout_8">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout_7">
+          <item>
+           <widget class="QLineEdit" name="editIMAPLoginFailedUsername">
+            <property name="minimumSize">
+             <size>
+              <width>200</width>
+              <height>0</height>
+             </size>
+            </property>
+            <property name="text">
+             <string/>
+            </property>
+            <property name="placeholderText">
+             <string>username or primary email</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="buttonImapLoginFailed">
+            <property name="text">
+             <string>Send</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="groupBoxNextLogin">
        <property name="minimumSize">
         <size>
          <width>0</width>

internal/frontend/bridge-gui/bridge-gui-tester/UserTable.cpp

@@ -186,6 +186,14 @@ void UserTable::touch(qint32 index) {
 }
 
 
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+//****************************************************************************************************************************************************
+void UserTable::touch(QString const &userID) {
+    this->touch(this->indexOfUser(userID));
+}
+
+
 //****************************************************************************************************************************************************
 /// \param[in] index The index of the user in the list.
 //****************************************************************************************************************************************************

internal/frontend/bridge-gui/bridge-gui-tester/UserTable.h

@@ -43,6 +43,7 @@ public: // member functions.
     bridgepp::SPUser userWithUsername(QString const &username); ///< Return the user with a given username.
     qint32 indexOfUser(QString const &userID); ///< Return the index of a given User.
     void touch(qint32 index); ///< touch the user at a given index (indicates it has been modified).
+    void touch(QString const& userID); ///< touch the user with the given userID (indicates it has been modified).
     void remove(qint32 index); ///< Remove the user at a given index.
     QList<bridgepp::SPUser> users() const; ///< Return a copy of the user list.
 

internal/frontend/bridge-gui/bridge-gui-tester/main.cpp

@@ -85,7 +85,10 @@ int main(int argc, char **argv) {
         return exitCode;
     }
     catch (Exception const &e) {
-        QTextStream(stderr) << QString("A fatal error occurred: %1\n").arg(e.qwhat());
+        QString message = e.qwhat();
+        if (!e.details().isEmpty())
+            message += "\n\nDetails:\n" + e.details();
+        QTextStream(stderr) << QString("A fatal error occurred: %1\n").arg(message);
         return EXIT_FAILURE;
     }
 }

internal/frontend/bridge-gui/bridge-gui/AppController.cpp

@@ -19,6 +19,7 @@
 #include "AppController.h"
 #include "QMLBackend.h"
 #include "SentryUtils.h"
+#include "Settings.h"
 #include <bridgepp/GRPC/GRPCClient.h>
 #include <bridgepp/Exception/Exception.h>
 #include <bridgepp/ProcessMonitor.h>
@@ -28,6 +29,10 @@
 
 using namespace bridgepp;
 
+namespace {
+QString const noWindowFlag = "--no-window"; ///< The no-window command-line flag.
+}
+
 
 //****************************************************************************************************************************************************
 /// \return The AppController instance.
@@ -44,10 +49,19 @@ AppController &app() {
 AppController::AppController()
     : backend_(std::make_unique<QMLBackend>())
     , grpc_(std::make_unique<GRPCClient>())
-    , log_(std::make_unique<Log>()) {
+    , log_(std::make_unique<Log>())
+    , settings_(new Settings) {
 }
 
 
+
+//****************************************************************************************************************************************************
+// The following is in the implementation file because of unique pointers with incomplete types in headers.
+// See https://stackoverflow.com/questions/6012157/is-stdunique-ptrt-required-to-know-the-full-definition-of-t
+//****************************************************************************************************************************************************
+AppController::~AppController() = default;
+
+
 //****************************************************************************************************************************************************
 /// \return The bridge worker, which can be null if the application was run in 'attach' mode (-a command-line switch).
 //****************************************************************************************************************************************************
@@ -68,13 +82,42 @@ ProcessMonitor *AppController::bridgeMonitor() const {
 
 
 //****************************************************************************************************************************************************
-/// \param[in] function The function that caught the exception.
-/// \param[in] message The error message.
+/// \return A reference to the application settings.
 //****************************************************************************************************************************************************
-void AppController::onFatalError(QString const &function, QString const &message) {
-    QString const fullMessage = QString("%1(): %2").arg(function, message);
-    reportSentryException(SENTRY_LEVEL_ERROR, "AppController got notified of a fatal error", "Exception", fullMessage.toLocal8Bit());
-    QMessageBox::critical(nullptr, tr("Error"), message);
-    log().fatal(fullMessage);
+Settings &AppController::settings() {
+    return *settings_;
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] exception The exception that triggered the fatal error.
+//****************************************************************************************************************************************************
+void AppController::onFatalError(Exception const &exception) {
+    sentry_uuid_t uuid = reportSentryException("AppController got notified of a fatal error", exception);
+
+    QMessageBox::critical(nullptr, tr("Error"), exception.what());
+    restart(true);
+    log().fatal(QString("reportID: %1 Captured exception: %2").arg(QByteArray(uuid.bytes, 16).toHex(), exception.detailedWhat()));
     qApp->exit(EXIT_FAILURE);
 }
+
+
+void AppController::restart(bool isCrashing) {
+    if (!launcher_.isEmpty()) {
+        QProcess p;
+        log_->info(QString("Restarting - App : %1 - Args : %2").arg(launcher_, launcherArgs_.join(" ")));
+        QStringList args = launcherArgs_;
+        if (isCrashing) {
+            args.append(noWindowFlag);
+        }
+
+        p.startDetached(launcher_, args);
+        p.waitForStarted();
+    }
+}
+
+
+void AppController::setLauncherArgs(const QString &launcher, const QStringList &args) {
+    launcher_ = launcher;
+    launcherArgs_ = args;
+}

internal/frontend/bridge-gui/bridge-gui/AppController.h

@@ -20,21 +20,17 @@
 #define BRIDGE_GUI_APP_CONTROLLER_H
 
 
+//@formatter:off
 class QMLBackend;
-
-
+class Settings;
 namespace bridgepp {
 class Log;
-
-
 class Overseer;
-
-
 class GRPCClient;
-
-
 class ProcessMonitor;
+class Exception;
 }
+//@formatter:on
 
 
 //****************************************************************************************************************************************************
@@ -47,7 +43,7 @@ Q_OBJECT
 public: // member functions.
     AppController(AppController const &) = delete; ///< Disabled copy-constructor.
     AppController(AppController &&) = delete; ///< Disabled assignment copy-constructor.
-    ~AppController() override = default; ///< Destructor.
+    ~AppController() override; ///< Destructor.
     AppController &operator=(AppController const &) = delete; ///< Disabled assignment operator.
     AppController &operator=(AppController &&) = delete; ///< Disabled move assignment operator.
     QMLBackend &backend() { return *backend_; } ///< Return a reference to the backend.
@@ -55,18 +51,24 @@ public: // member functions.
     bridgepp::Log &log() { return *log_; } ///< Return a reference to the log.
     std::unique_ptr<bridgepp::Overseer> &bridgeOverseer() { return bridgeOverseer_; }; ///< Returns a reference the bridge overseer
     bridgepp::ProcessMonitor *bridgeMonitor() const; ///< Return the bridge worker.
+    Settings &settings();; ///< Return the application settings.
+    void setLauncherArgs(const QString &launcher, const QStringList &args);
 
 public slots:
-    void onFatalError(QString const &function, QString const &message); ///< Handle fatal errors.
+    void onFatalError(bridgepp::Exception const& e); ///< Handle fatal errors.
 
 private: // member functions
     AppController(); ///< Default constructor.
+    void restart(bool isCrashing = false); ///< Restart the app.
 
 private: // data members
     std::unique_ptr<QMLBackend> backend_; ///< The backend.
     std::unique_ptr<bridgepp::GRPCClient> grpc_; ///< The RPC client.
     std::unique_ptr<bridgepp::Log> log_; ///< The log.
     std::unique_ptr<bridgepp::Overseer> bridgeOverseer_; ///< The overseer for the bridge monitor worker.
+    std::unique_ptr<Settings> settings_; ///< The application settings.
+    QString launcher_;
+    QStringList launcherArgs_;
 };
 
 

internal/frontend/bridge-gui/bridge-gui/BuildConfig.h.in

@@ -0,0 +1,31 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+
+#ifndef BRIDGE_GUI_VERSION_H
+#define BRIDGE_GUI_VERSION_H
+
+#define PROJECT_FULL_NAME             "@BRIDGE_APP_FULL_NAME@"
+#define PROJECT_VENDOR                "@BRIDGE_VENDOR@"
+#define PROJECT_VER                   "@BRIDGE_APP_VERSION@"
+#define PROJECT_REVISION              "@BRIDGE_REVISION@"
+#define PROJECT_BUILD_TIME            "@BRIDGE_BUILD_TIME@"
+#define PROJECT_DSN_SENTRY            "@BRIDGE_DSN_SENTRY@"
+#define PROJECT_BUILD_ENV             "@BRIDGE_BUILD_ENV@"
+#define PROJECT_CRASHPAD_HANDLER_PATH "@BRIDGE_CRASHPAD_HANDLER_PATH@"
+
+#endif // BRIDGE_GUI_VERSION_H

internal/frontend/bridge-gui/bridge-gui/CMakeLists.txt

@@ -85,20 +85,11 @@ message(STATUS "Using Qt ${Qt6_VERSION}")
 #*****************************************************************************************************************************************************
 find_package(sentry CONFIG REQUIRED)
 
-set(DSN_SENTRY "https://ea31dfe8574849108fb8ba044fec3620@api.protonmail.ch/core/v4/reports/sentry/7")
-set(SENTRY_CONFIG_GENERATED_FILE_DIR ${CMAKE_CURRENT_BINARY_DIR}/sentry-generated)
-set(SENTRY_CONFIG_FILE ${SENTRY_CONFIG_GENERATED_FILE_DIR}/project_sentry_config.h)
-file(GENERATE OUTPUT ${SENTRY_CONFIG_FILE} CONTENT
-    "// AUTO GENERATED FILE, DO NOT MODIFY\n#pragma once\nconst char* SentryDNS=\"${DSN_SENTRY}\";\nconst char* SentryProductID=\"bridge-mail@${BRIDGE_APP_VERSION}\";\n"
-)
-
-
-
 #*****************************************************************************************************************************************************
 # Source files and output
 #*****************************************************************************************************************************************************
 
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Version.h.in ${CMAKE_CURRENT_SOURCE_DIR}/Version.h)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/BuildConfig.h.in ${CMAKE_CURRENT_SOURCE_DIR}/BuildConfig.h)
 
 if (NOT TARGET bridgepp)
     add_subdirectory(../bridgepp bridgepp)
@@ -118,23 +109,23 @@ add_executable(bridge-gui
     Resources.qrc
     AppController.cpp AppController.h
     BridgeApp.cpp BridgeApp.h
+    BuildConfig.h
     CommandLine.cpp CommandLine.h
     EventStreamWorker.cpp EventStreamWorker.h
+    LogUtils.cpp LogUtils.h
     main.cpp
     Pch.h
-    Version.h
     QMLBackend.cpp QMLBackend.h
     UserList.cpp UserList.h
     SentryUtils.cpp SentryUtils.h
+    Settings.cpp Settings.h
     ${DOCK_ICON_SRC_FILE} MacOS/DockIcon.h
     )
 
-
 if (APPLE)
     target_sources(bridge-gui PRIVATE MacOS/SecondInstance.mm MacOS/SecondInstance.h)
 endif(APPLE)
 
-
 if (WIN32) # on Windows, we add a (non-Qt) resource file that contains the application icon and version information.
     string(TIMESTAMP BRIDGE_BUILD_YEAR "%Y")
     set(REGEX_NUMBER "[0123456789]") # CMake matches does not support \d.

internal/frontend/bridge-gui/bridge-gui/CommandLine.cpp

@@ -18,6 +18,7 @@
 
 #include "Pch.h"
 #include "CommandLine.h"
+#include "Settings.h"
 
 
 using namespace bridgepp;
@@ -28,7 +29,10 @@ namespace {
 
 QString const launcherFlag = "--launcher"; ///< launcher flag parameter used for bridge.
 QString const noWindowFlag = "--no-window"; ///< The no-window command-line flag.
-QString const softwareRendererFlag = "--software-renderer"; ///< The 'software-renderer' command-line flag.
+QString const softwareRendererFlag = "--software-renderer"; ///< The 'software-renderer' command-line flag. enable software rendering for a single execution
+QString const setSoftwareRendererFlag = "--set-software-renderer"; ///< The 'set-software-renderer' command-line flag. Software rendering will be used for all subsequent executions of the application.
+QString const setHardwareRendererFlag = "--set-hardware-renderer"; ///< The 'set-hardware-renderer' command-line flag. Hardware rendering will be used for all subsequent executions of the application.
+
 
 //****************************************************************************************************************************************************
 /// \brief parse a command-line string argument as expected by go's CLI package.
@@ -98,8 +102,17 @@ CommandLineOptions parseCommandLine(int argc, char *argv[]) {
         // we can't use QCommandLineParser here since it will fail on unknown options.
         // Arguments may contain some bridge flags.
         if (arg == softwareRendererFlag) {
+            options.bridgeGuiArgs.append(arg);
             options.useSoftwareRenderer = true;
         }
+        if (arg == setSoftwareRendererFlag) {
+            app().settings().setUseSoftwareRenderer(true);
+            continue; // setting is permanent. no need to keep/pass it to bridge for restart.
+        }
+        if (arg == setHardwareRendererFlag) {
+            app().settings().setUseSoftwareRenderer(false);
+            continue; // setting is permanent. no need to keep/pass it to bridge for restart.
+        }
         if (arg == noWindowFlag) {
             options.noWindow = true;
         }
@@ -113,10 +126,12 @@ CommandLineOptions parseCommandLine(int argc, char *argv[]) {
         else if (arg == "--attach" || arg == "-a") {
             // we don't keep the attach mode within the args since we don't need it for Bridge.
             options.attach = true;
+            options.bridgeGuiArgs.append(arg);
         }
 #endif
         else {
             options.bridgeArgs.append(arg);
+            options.bridgeGuiArgs.append(arg);
         }
     }
     if (!flagFound) {

internal/frontend/bridge-gui/bridge-gui/CommandLine.h

@@ -28,6 +28,7 @@
 //****************************************************************************************************************************************************
 struct CommandLineOptions {
     QStringList bridgeArgs; ///< The command-line arguments we will pass to bridge when launching it.
+    QStringList bridgeGuiArgs; ///< The command-line arguments we will pass to bridge when launching it.
     QString launcher; ///< The path to the launcher.
     bool attach { false }; ///< Is the application running in attached mode?
     bridgepp::Log::Level logLevel { bridgepp::Log::defaultLevel }; ///< The log level

internal/frontend/bridge-gui/bridge-gui/EventStreamWorker.cpp

@@ -52,7 +52,7 @@ void EventStreamReader::run() {
         emit finished();
     }
     catch (Exception const &e) {
-        reportSentryException(SENTRY_LEVEL_ERROR, "Error during event stream read", "Exception", e.what());
+        reportSentryException("Error during event stream read", e);
         emit error(e.qwhat());
     }
 }

internal/frontend/bridge-gui/bridge-gui/LogUtils.cpp

@@ -0,0 +1,58 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+
+#include "LogUtils.h"
+#include "BuildConfig.h"
+#include <bridgepp/Log/LogUtils.h>
+#include <bridgepp/BridgeUtils.h>
+
+
+using namespace bridgepp;
+
+
+//****************************************************************************************************************************************************
+/// \return A reference to the log.
+//****************************************************************************************************************************************************
+Log &initLog() {
+    Log &log = app().log();
+    log.registerAsQtMessageHandler();
+    log.setEchoInConsole(true);
+
+    // remove old gui log files
+    QDir const logsDir(userLogsDir());
+    for (QFileInfo const fileInfo: logsDir.entryInfoList({ "gui_v*.log" }, QDir::Filter::Files)) { // entryInfolist apparently only support wildcards, not regex.
+        QFile(fileInfo.absoluteFilePath()).remove();
+    }
+
+    // create new GUI log file
+    QString error;
+    if (!log.startWritingToFile(logsDir.absoluteFilePath(QString("gui_v%1_%2.log").arg(PROJECT_VER).arg(QDateTime::currentSecsSinceEpoch())), &error)) {
+        log.error(error);
+    }
+
+    log.info("bridge-gui starting");
+    QString const qtCompileTimeVersion = QT_VERSION_STR;
+    QString const qtRuntimeVersion = qVersion();
+    QString msg = QString("Using Qt %1").arg(qtRuntimeVersion);
+    if (qtRuntimeVersion != qtCompileTimeVersion) {
+        msg += QString(" (compiled against %1)").arg(qtCompileTimeVersion);
+    }
+    log.info(msg);
+
+    return log;
+}

internal/frontend/bridge-gui/bridge-gui/LogUtils.h

@@ -16,13 +16,14 @@
 // along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
 
 
-#ifndef BRIDGE_GUI_VERSION_H
-#define BRIDGE_GUI_VERSION_H
+#ifndef BRIDGE_GUI_LOG_UTILS_H
+#define BRIDGE_GUI_LOG_UTILS_H
 
-#define PROJECT_FULL_NAME   "@BRIDGE_APP_FULL_NAME@"
-#define PROJECT_VENDOR      "@BRIDGE_VENDOR@"
-#define PROJECT_VER         "@BRIDGE_APP_VERSION@"
-#define PROJECT_REVISION    "@BRIDGE_REVISION@"
-#define PROJECT_BUILD_TIME  "@BRIDGE_BUILD_TIME@"
 
-#endif // BRIDGE_GUI_VERSION_H
+#include <bridgepp/Log/Log.h>
+
+
+bridgepp::Log &initLog(); ///< Initialize the application log.
+
+
+#endif //BRIDGE_GUI_LOG_UTILS_H

internal/frontend/bridge-gui/bridge-gui/QMLBackend.cpp

@@ -17,16 +17,19 @@
 
 
 #include "QMLBackend.h"
+#include "BuildConfig.h"
 #include "EventStreamWorker.h"
-#include "Version.h"
-#include <bridgepp/GRPC/GRPCClient.h>
+#include <bridgepp/BridgeUtils.h>
 #include <bridgepp/Exception/Exception.h>
+#include <bridgepp/Log/LogUtils.h>
+#include <bridgepp/GRPC/GRPCClient.h>
 #include <bridgepp/Worker/Overseer.h>
+#include <bridgepp/BridgeUtils.h>
 
 
 #define HANDLE_EXCEPTION(x) try { x } \
-    catch (Exception const &e) { emit fatalError(__func__, e.qwhat()); } \
-    catch (...)  { emit fatalError(__func__, QString("An unknown exception occurred")); }
+    catch (Exception const &e) { emit fatalError(e); } \
+    catch (...)  { emit fatalError(Exception("An unknown exception occurred", QString(), __func__)); }
 #define HANDLE_EXCEPTION_RETURN_BOOL(x) HANDLE_EXCEPTION(x) return false;
 #define HANDLE_EXCEPTION_RETURN_QSTRING(x) HANDLE_EXCEPTION(x) return QString();
 #define HANDLE_EXCEPTION_RETURN_ZERO(x) HANDLE_EXCEPTION(x) return 0;
@@ -56,12 +59,8 @@ void QMLBackend::init(GRPCConfig const &serviceConfig) {
     app().grpc().setLog(&log);
     this->connectGrpcEvents();
 
-    QString error;
-    if (app().grpc().connectToServer(serviceConfig, app().bridgeMonitor(), error)) {
-        app().log().info("Connected to backend via gRPC service.");
-    } else {
-        throw Exception(QString("Cannot connectToServer to go backend via gRPC: %1").arg(error));
-    }
+    app().grpc().connectToServer(bridgepp::userConfigDir(), serviceConfig, app().bridgeMonitor());
+    app().log().info("Connected to backend via gRPC service.");
 
     QString bridgeVer;
     app().grpc().version(bridgeVer);
@@ -77,7 +76,6 @@ void QMLBackend::init(GRPCConfig const &serviceConfig) {
     });
 
     // Grab from bridge the value that will not change during the execution of this app (or that will only change locally).
-    app().grpc().showSplashScreen(showSplashScreen_);
     app().grpc().goos(goos_);
     app().grpc().logsPath(logsPath_);
     app().grpc().licensePath(licensePath_);
@@ -102,6 +100,14 @@ bool QMLBackend::waitForEventStreamReaderToFinish(qint32 timeoutMs) {
 }
 
 
+//****************************************************************************************************************************************************
+/// \return The build year as a string (e.g. 2023)
+//****************************************************************************************************************************************************
+QString QMLBackend::buildYear() {
+    return QString(__DATE__).right(4);
+}
+
+
 //****************************************************************************************************************************************************
 /// \return The position of the cursor.
 //****************************************************************************************************************************************************
@@ -173,16 +179,6 @@ void QMLBackend::setShowSplashScreen(bool show) {
 }
 
 
-//****************************************************************************************************************************************************
-/// \return The value for the 'showSplashScreen' property.
-//****************************************************************************************************************************************************
-bool QMLBackend::showSplashScreen() const {
-    HANDLE_EXCEPTION_RETURN_BOOL(
-        return showSplashScreen_;
-    )
-}
-
-
 //****************************************************************************************************************************************************
 /// \return The value for the 'GOOS' property.
 //****************************************************************************************************************************************************
@@ -193,6 +189,16 @@ QString QMLBackend::goos() const {
 }
 
 
+//****************************************************************************************************************************************************
+/// \return The value for the 'showSplashScreen' property.
+//****************************************************************************************************************************************************
+bool QMLBackend::showSplashScreen() const {
+    HANDLE_EXCEPTION_RETURN_BOOL(
+        return showSplashScreen_;
+    )
+}
+
+
 //****************************************************************************************************************************************************
 /// \return The value for the 'logsPath' property.
 //****************************************************************************************************************************************************
@@ -461,18 +467,6 @@ bool QMLBackend::isDoHEnabled() const {
 }
 
 
-//****************************************************************************************************************************************************
-/// \return The value for the 'isFirstGUIStart' property.
-//****************************************************************************************************************************************************
-bool QMLBackend::isFirstGUIStart() const {
-    HANDLE_EXCEPTION_RETURN_BOOL(
-        bool v;
-        app().grpc().isFirstGUIStart(v);
-        return v;
-    )
-}
-
-
 //****************************************************************************************************************************************************
 /// \return The value for the 'isAutomaticUpdateOn' property.
 //****************************************************************************************************************************************************
@@ -603,7 +597,8 @@ void QMLBackend::setDiskCachePath(QUrl const &path) const {
 void QMLBackend::login(QString const &username, QString const &password) const {
     HANDLE_EXCEPTION(
         if (username.compare("coco@bandicoot", Qt::CaseInsensitive) == 0) {
-            throw Exception("User requested bridge-gui to crash by trying to log as coco@bandicoot");
+            throw Exception("User requested bridge-gui to crash by trying to log as coco@bandicoot",
+                "This error exists for test purposes and should be ignored.", __func__, tailOfLatestBridgeLog());
         }
         app().grpc().login(username, password);
     )
@@ -691,9 +686,11 @@ void QMLBackend::changeKeychain(QString const &keychain) {
 //****************************************************************************************************************************************************
 //
 //****************************************************************************************************************************************************
-void QMLBackend::guiReady() const {
+void QMLBackend::guiReady() {
     HANDLE_EXCEPTION(
-        app().grpc().guiReady();
+        bool showSplashScreen;
+        app().grpc().guiReady(showSplashScreen);
+        this->setShowSplashScreen(showSplashScreen);
     )
 }
 
@@ -821,6 +818,26 @@ void QMLBackend::setMailServerSettings(int imapPort, int smtpPort, bool useSSLFo
 }
 
 
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+/// \param[in] doResync Did the user request a resync.
+//****************************************************************************************************************************************************
+void QMLBackend::sendBadEventUserFeedback(QString const &userID, bool doResync) {
+    HANDLE_EXCEPTION(
+        app().grpc().sendBadEventUserFeedback(userID, doResync);
+
+        // Notification dialog has just been dismissed, we remove the userID from the queue, and if there are other events in the queue, we show
+        // the dialog again.
+        badEventDisplayQueue_.removeOne(userID);
+        if (!badEventDisplayQueue_.isEmpty()) {
+            // we introduce a small delay here, so that the user notices the dialog disappear and pops up again.
+            QTimer::singleShot(500, [&]() { this->displayBadEventDialog(badEventDisplayQueue_.front()); });
+
+        }
+    )
+}
+
+
 //****************************************************************************************************************************************************
 /// \param[in] imapPort The IMAP port.
 /// \param[in] smtpPort The SMTP port.
@@ -872,6 +889,47 @@ void QMLBackend::onLoginAlreadyLoggedIn(QString const &userID) {
 }
 
 
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+//****************************************************************************************************************************************************
+void QMLBackend::onUserBadEvent(QString const &userID, QString const& ) {
+    HANDLE_EXCEPTION(
+        if (badEventDisplayQueue_.contains(userID)) {
+            app().log().error("Received 'bad event' for a user that is already in the queue.");
+            return;
+        }
+
+        SPUser const user = users_->getUserWithID(userID);
+        if (!user) {
+            app().log().error(QString("Received bad event for unknown user %1."));
+        }
+
+        badEventDisplayQueue_.append(userID);
+        if (badEventDisplayQueue_.size() == 1) { // there was no other item is the queue, we can display the dialog immediately.
+            this->displayBadEventDialog(userID);
+        }
+    )
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] username The username (or primary email address)
+//****************************************************************************************************************************************************
+void QMLBackend::onIMAPLoginFailed(QString const &username) {
+    HANDLE_EXCEPTION(
+        SPUser const user = users_->getUserWithUsernameOrEmail(username);
+        if ((!user) || (user->state() != UserState::SignedOut)) { // We want to pop-up only if a signed-out user has been detected
+            return;
+        }
+        if (user->isInIMAPLoginFailureCooldown())
+            return;
+        user->startImapLoginFailureCooldown(60 * 60 * 1000); // 1 hour cooldown during which we will not display this notification to this user again.
+        emit selectUser(user->id());
+        emit imapLoginWhileSignedOut(username);
+    )
+}
+
+
 //****************************************************************************************************************************************************
 //
 //****************************************************************************************************************************************************
@@ -979,5 +1037,27 @@ void QMLBackend::connectGrpcEvents() {
 
     // user events
     connect(client, &GRPCClient::userDisconnected, this, &QMLBackend::userDisconnected);
+    connect(client, &GRPCClient::userBadEvent, this, &QMLBackend::onUserBadEvent);
+    connect(client, &GRPCClient::imapLoginFailed, this, &QMLBackend::onIMAPLoginFailed);
+
     users_->connectGRPCEvents();
 }
+
+
+//****************************************************************************************************************************************************
+/// \param[in] userID The userID.
+//****************************************************************************************************************************************************
+void QMLBackend::displayBadEventDialog(QString const &userID) {
+    HANDLE_EXCEPTION(
+        SPUser const user = users_->getUserWithID(userID);
+        if (!user) {
+            return;
+        }
+
+        emit userBadEvent(userID,
+            tr("Bridge ran into an internal error and it is not able to proceed with the account %1. Synchronize your local database now or logout"
+               " to do it later. Synchronization time depends on the size of your mailbox.").arg(elideLongString(user->primaryEmailOrUsername(), 30)));
+        emit selectUser(userID);
+        emit showMainWindow();
+    )
+}

internal/frontend/bridge-gui/bridge-gui/QMLBackend.h

@@ -21,7 +21,7 @@
 
 
 #include "MacOS/DockIcon.h"
-#include "Version.h"
+#include "BuildConfig.h"
 #include "UserList.h"
 #include <bridgepp/GRPC/GRPCClient.h>
 #include <bridgepp/GRPC/GRPCUtils.h>
@@ -45,6 +45,7 @@ public: // member functions.
     bool waitForEventStreamReaderToFinish(qint32 timeoutMs); ///< Wait for the event stream reader to finish.
 
     // invokable methods can be called from QML. They generally return a value, which slots cannot do.
+    Q_INVOKABLE static QString buildYear(); ///< Return the application build year.
     Q_INVOKABLE QPoint getCursorPos() const; ///< Retrieve the cursor position.
     Q_INVOKABLE bool isPortFree(int port) const; ///< Check if a given network port is available.
     Q_INVOKABLE QString nativePath(QUrl const &url) const; ///< Retrieve the native path of a local URL.
@@ -73,7 +74,6 @@ public: // Qt/QML properties. Note that the NOTIFY-er signal is required even fo
     Q_PROPERTY(int imapPort READ imapPort WRITE setIMAPPort NOTIFY imapPortChanged)
     Q_PROPERTY(int smtpPort READ smtpPort WRITE setSMTPPort NOTIFY smtpPortChanged)
     Q_PROPERTY(bool isDoHEnabled READ isDoHEnabled NOTIFY isDoHEnabledChanged)
-    Q_PROPERTY(bool isFirstGUIStart READ isFirstGUIStart)
     Q_PROPERTY(bool isAutomaticUpdateOn READ isAutomaticUpdateOn NOTIFY isAutomaticUpdateOnChanged)
     Q_PROPERTY(QString currentEmailClient READ currentEmailClient NOTIFY currentEmailClientChanged)
     Q_PROPERTY(QStringList availableKeychain READ availableKeychain NOTIFY availableKeychainChanged)
@@ -110,7 +110,6 @@ public: // Qt/QML properties. Note that the NOTIFY-er signal is required even fo
     void setSMTPPort(int port); ///< Setter for the 'smtpPort' property.
     int smtpPort() const; ///< Getter for the 'smtpPort' property.
     bool isDoHEnabled() const; ///< Getter for the 'isDoHEnabled' property.
-    bool isFirstGUIStart() const; ///< Getter for the 'isFirstGUIStart' property.
     bool isAutomaticUpdateOn() const; ///< Getter for the 'isAutomaticUpdateOn' property.
     QString currentEmailClient() const; ///< Getter for the 'currentEmail' property.
     QStringList availableKeychain() const; ///< Getter for the 'availableKeychain' property.
@@ -162,7 +161,7 @@ public slots: // slot for signals received from QML -> To be forwarded to Bridge
     void toggleAutomaticUpdate(bool makeItActive); ///< Slot for the automatic update toggle
     void updateCurrentMailClient(); ///< Slot for the change of the current mail client.
     void changeKeychain(QString const &keychain); ///< Slot for the change of keychain.
-    void guiReady() const; ///< Slot for the GUI ready signal.
+    void guiReady(); ///< Slot for the GUI ready signal.
     void quit() const; ///< Slot for the quit signal.
     void restart() const; ///< Slot for the restart signal.
     void forceLauncher(QString launcher) const; ///< Slot for the change of the launcher.
@@ -174,12 +173,15 @@ public slots: // slot for signals received from QML -> To be forwarded to Bridge
     void onResetFinished(); ///< Slot for the reset finish signal.
     void onVersionChanged(); ///< Slot for the version change signal.
     void setMailServerSettings(int imapPort, int smtpPort, bool useSSLForIMAP, bool useSSLForSMTP) const; ///< Forwards a connection mode change request from QML to gRPC
+    void sendBadEventUserFeedback(QString const &userID, bool doResync); ///< Slot the providing user feedback for a bad event.
 
 public slots: // slot for signals received from gRPC that need transformation instead of simple forwarding
     void onMailServerSettingsChanged(int imapPort, int smtpPort, bool useSSLForIMAP, bool useSSLForSMTP); ///< Slot for the ConnectionModeChanged gRPC event.
     void onGenericError(bridgepp::ErrorInfo const &info); ///< Slot for generic errors received from the gRPC service.
     void onLoginFinished(QString const &userID, bool wasSignedOut); ///< Slot for LoginFinished gRPC event.
     void onLoginAlreadyLoggedIn(QString const &userID); ///< Slot for the LoginAlreadyLoggedIn gRPC event.
+    void onUserBadEvent(QString const& userID, QString const& errorMessage); ///< Slot for the userBadEvent gRPC event.
+    void onIMAPLoginFailed(QString const& username); ///< Slot the the imapLoginFailed event.
 
 signals: // Signals received from the Go backend, to be forwarded to QML
     void toggleAutostartFinished(); ///< Signal for the 'toggleAutostartFinished' gRPC stream event.
@@ -222,6 +224,7 @@ signals: // Signals received from the Go backend, to be forwarded to QML
     void addressChangedLogout(QString const &address); ///< Signal for the 'addressChangedLogout' gRPC stream event.
     void apiCertIssue(); ///< Signal for the 'apiCertIssue' gRPC stream event.
     void userDisconnected(QString const &username); ///< Signal for the 'userDisconnected' gRPC stream event.
+    void userBadEvent(QString const &userID, QString const &description); ///< Signal for the 'userBadEvent' gRPC stream event.
     void internetOff(); ///< Signal for the 'internetOff' gRPC stream event.
     void internetOn(); ///< Signal for the 'internetOn' gRPC stream event.
     void resetFinished(); ///< Signal for the 'resetFinished' gRPC stream event.
@@ -231,13 +234,16 @@ signals: // Signals received from the Go backend, to be forwarded to QML
     void showMainWindow(); ///< Signal for the 'showMainWindow' gRPC stream event.
     void hideMainWindow(); ///< Signal for the 'hideMainWindow' gRPC stream event.
     void genericError(QString const &title, QString const &description); ///< Signal for the 'genericError' gRPC stream event.
+    void selectUser(QString const); ///< Signal that request the given user account to be displayed.
+    void imapLoginWhileSignedOut(QString const& username); ///< Signal for the notification of IMAP login attempt on a signed out account.
 
     // This signal is emitted when an exception is intercepted is calls triggered by QML. QML engine would intercept the exception otherwise.
-    void fatalError(QString const &function, QString const &message) const; ///< Signal emitted when an fatal error occurs.
+    void fatalError(bridgepp::Exception const& e) const; ///< Signal emitted when an fatal error occurs.
 
 private: // member functions
     void retrieveUserList(); ///< Retrieve the list of users via gRPC.
     void connectGrpcEvents(); ///< Connect gRPC that need to be forwarded to QML via backend signals
+    void displayBadEventDialog(QString const& userID); ///< Displays the bad event dialog for a user.
 
 private: // data members
     UserList *users_ { nullptr }; ///< The user list. Owned by backend.
@@ -250,6 +256,7 @@ private: // data members
     int smtpPort_ { 0 }; ///< The cached value for the SMTP port.
     bool useSSLForIMAP_ { false }; ///< The cached value for useSSLForIMAP.
     bool useSSLForSMTP_ { false }; ///< The cached value for useSSLForSMTP.
+    QList<QString> badEventDisplayQueue_; ///< THe queue for displaying 'bad event feedback request dialog'.
 
     friend class AppController;
 };

internal/frontend/bridge-gui/bridge-gui/Resources.qrc

@@ -42,6 +42,7 @@
         <file>qml/icons/ic-other-mail-clients.svg</file>
         <file>qml/icons/ic-plus.svg</file>
         <file>qml/icons/ic-question-circle.svg</file>
+        <file>qml/icons/ic-splash-check.svg</file>
         <file>qml/icons/ic-success.svg</file>
         <file>qml/icons/ic-three-dots-vertical.svg</file>
         <file>qml/icons/ic-trash.svg</file>

internal/frontend/bridge-gui/bridge-gui/SentryUtils.cpp

@@ -16,19 +16,166 @@
 // along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
 
 #include "SentryUtils.h"
+#include "BuildConfig.h"
+#include <bridgepp/BridgeUtils.h>
+#include <bridgepp/Exception/Exception.h>
+
+
+using namespace bridgepp;
 
 
 static constexpr const char *LoggerName = "bridge-gui";
 
 
-void reportSentryEvent(sentry_level_t level, const char *message) {
-    auto event = sentry_value_new_message_event(level, LoggerName, message);
-    sentry_capture_event(event);
+//****************************************************************************************************************************************************
+/// \return The temporary file used for sentry attachment.
+//****************************************************************************************************************************************************
+QString sentryAttachmentFilePath() {
+    static QString path;
+    if (!path.isEmpty()) {
+        return path;
+    }
+    while (true) {
+        path = QDir::temp().absoluteFilePath(QUuid::createUuid().toString(QUuid::WithoutBraces) + ".txt"); // Sentry does not offer preview for .log files.
+        if (!QFileInfo::exists(path)) {
+            return path;
+        }
+    }
 }
 
 
-void reportSentryException(sentry_level_t level, const char *message, const char *exceptionType, const char *exception) {
+//****************************************************************************************************************************************************
+/// \brief Get a hash of the computer's host name
+//****************************************************************************************************************************************************
+QByteArray getProtectedHostname() {
+    QByteArray hostname = QCryptographicHash::hash(QSysInfo::machineHostName().toUtf8(), QCryptographicHash::Sha256);
+    return hostname.toHex();
+}
+
+//****************************************************************************************************************************************************
+/// \return The OS String used by sentry
+//****************************************************************************************************************************************************
+QString getApiOS() {
+    switch (os()) {
+    case OS::MacOS:
+        return "macos";
+    case OS::Windows:
+        return "windows";
+    case OS::Linux:
+    default:
+        return "linux";
+    }
+}
+
+//****************************************************************************************************************************************************
+/// \return The application version number.
+//****************************************************************************************************************************************************
+QString appVersion(const QString& version) {
+    return QString("%1-bridge@%2").arg(getApiOS(), version);
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+void initSentry() {
+    sentry_options_t *sentryOptions = newSentryOptions(PROJECT_DSN_SENTRY, sentryCacheDir().toStdString().c_str());
+    if (!QString(PROJECT_CRASHPAD_HANDLER_PATH).isEmpty())
+        sentry_options_set_handler_path(sentryOptions, PROJECT_CRASHPAD_HANDLER_PATH);
+
+    if (sentry_init(sentryOptions) != 0) {
+        QTextStream(stderr) << "Failed to initialize sentry\n";
+    }
+    setSentryReportScope();
+}
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+void setSentryReportScope() {
+    sentry_set_tag("OS", bridgepp::goos().toUtf8());
+    sentry_set_tag("Client", PROJECT_FULL_NAME);
+    sentry_set_tag("Version", PROJECT_REVISION);
+    sentry_set_tag("HostArch", QSysInfo::currentCpuArchitecture().toUtf8());
+    sentry_set_tag("server_name", getProtectedHostname());
+    sentry_value_t user = sentry_value_new_object();
+    sentry_value_set_by_key(user, "id", sentry_value_new_string(getProtectedHostname()));
+    sentry_set_user(user);
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+sentry_options_t* newSentryOptions(const char *sentryDNS, const char *cacheDir) {
+    sentry_options_t *sentryOptions = sentry_options_new();
+    sentry_options_set_dsn(sentryOptions, sentryDNS);
+    sentry_options_set_database_path(sentryOptions, cacheDir);
+    sentry_options_set_release(sentryOptions, appVersion(PROJECT_VER).toUtf8());
+    sentry_options_set_max_breadcrumbs(sentryOptions, 50);
+    sentry_options_set_environment(sentryOptions, PROJECT_BUILD_ENV);
+    QByteArray const array = sentryAttachmentFilePath().toLocal8Bit();
+    sentry_options_add_attachment(sentryOptions, array.constData());
+    // Enable this for debugging sentry.
+    // sentry_options_set_debug(sentryOptions, 1);
+
+    return sentryOptions;
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+sentry_uuid_t reportSentryEvent(sentry_level_t level, const char *message) {
+    auto event = sentry_value_new_message_event(level, LoggerName, message);
+    return sentry_capture_event(event);
+}
+
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+sentry_uuid_t reportSentryException(sentry_level_t level, const char *message, const char *exceptionType, const char *exception) {
     auto event = sentry_value_new_message_event(level, LoggerName, message);
     sentry_event_add_exception(event, sentry_value_new_exception(exceptionType, exception));
-    sentry_capture_event(event);
+
+    // reject exception content from the fingerprint if there is not enough content
+    if ( strlen(exception) < 5) {
+        sentry_value_t fingerprint = sentry_value_new_list();
+        sentry_value_append(fingerprint, sentry_value_new_string("level"));
+        sentry_value_append(fingerprint, sentry_value_new_string(message));
+        sentry_value_append(fingerprint, sentry_value_new_string(LoggerName));
+        sentry_value_set_by_key(event, "fingerprint", fingerprint);
+    }
+
+    return sentry_capture_event(event);
 }
+
+
+//****************************************************************************************************************************************************
+/// \param[in] message The message for the exception.
+/// \param[in] function The name of the function that triggered the exception.
+/// \param[in] exception The exception.
+/// \return The Sentry exception UUID.
+//****************************************************************************************************************************************************
+sentry_uuid_t reportSentryException(QString const &message, bridgepp::Exception const exception) {
+    QByteArray const attachment = exception.attachment();
+    QFile file(sentryAttachmentFilePath());
+    bool const hasAttachment = !attachment.isEmpty();
+    if (hasAttachment) {
+        if (file.open(QIODevice::Text | QIODevice::WriteOnly)) {
+            file.write(attachment);
+            file.close();
+        }
+    }
+
+    sentry_uuid_t const uuid = reportSentryException(SENTRY_LEVEL_ERROR, message.toLocal8Bit(), "Exception",
+        exception.detailedWhat().toLocal8Bit());
+
+    if (hasAttachment) {
+        file.remove();
+    }
+
+    return uuid;
+}
+

internal/frontend/bridge-gui/bridge-gui/SentryUtils.h

@@ -21,8 +21,11 @@
 
 #include <sentry.h>
 
+void initSentry();
+void setSentryReportScope();
+sentry_options_t* newSentryOptions(const char * sentryDNS, const char * cacheDir);
+sentry_uuid_t reportSentryEvent(sentry_level_t level, const char *message);
+sentry_uuid_t reportSentryException(QString const& message, bridgepp::Exception const exception);
 
-void reportSentryEvent(sentry_level_t level, const char *message);
-void reportSentryException(sentry_level_t level, const char *message, const char *exceptionType, const char *exception);
 
 #endif //BRIDGE_GUI_SENTRYUTILS_H

internal/frontend/bridge-gui/bridge-gui/Settings.cpp

@@ -0,0 +1,56 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+
+#include "Settings.h"
+#include <bridgepp/BridgeUtils.h>
+
+
+using namespace bridgepp;
+
+
+namespace {
+
+
+QString const settingsFileName = "bridge-gui.ini"; ///< The name of the settings file.
+QString const keyUseSoftwareRenderer = "UseSoftwareRenderer"; ///< The key for storing the 'Use software rendering' setting.
+
+
+}
+
+//****************************************************************************************************************************************************
+//
+//****************************************************************************************************************************************************
+Settings::Settings()
+    : settings_(QDir(userConfigDir()).absoluteFilePath("bridge-gui.ini"), QSettings::Format::IniFormat) {
+}
+
+
+//****************************************************************************************************************************************************
+/// \return The value for the 'Use software renderer' setting.
+//****************************************************************************************************************************************************
+bool Settings::useSoftwareRenderer() const {
+    return settings_.value(keyUseSoftwareRenderer, onWindows()).toBool();
+}
+
+
+//****************************************************************************************************************************************************
+/// \param[in] value The value for the 'Use software renderer' setting.
+//****************************************************************************************************************************************************
+void Settings::setUseSoftwareRenderer(bool value) {
+    settings_.setValue(keyUseSoftwareRenderer, value);
+}

internal/frontend/bridge-gui/bridge-gui/Settings.h

@@ -0,0 +1,47 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+
+#ifndef BRIDGE_GUI_SETTINGS_H
+#define BRIDGE_GUI_SETTINGS_H
+
+
+//****************************************************************************************************************************************************
+/// \brief Application settings class
+//****************************************************************************************************************************************************
+class Settings {
+public: // member functions.
+    Settings(Settings const&) = delete; ///< Disabled copy-constructor.
+    Settings(Settings&&) = delete; ///< Disabled assignment copy-constructor.
+    ~Settings() = default; ///< Destructor.
+    Settings& operator=(Settings const&) = delete; ///< Disabled assignment operator.
+    Settings& operator=(Settings&&) = delete; ///< Disabled move assignment operator.
+
+    bool useSoftwareRenderer() const; ///< Get the 'Use software renderer' settings value.
+    void setUseSoftwareRenderer(bool value); ///< Set the 'Use software renderer' settings value.
+
+private: // member functions.
+    Settings(); ///< Default constructor.
+
+private: // data members.
+    QSettings settings_; ///< The settings.
+
+    friend class AppController;
+};
+
+
+#endif //BRIDGE_GUI_SETTINGS_H