Other: Bridge James 1.8.0

- [x] write tests to check that IMAP and SMTP servers are closed when there
  is no internet
- [x] always create new go-smtp instance during listenAndServe(int)

.gitattributes

@@ -1 +1 @@
-Changelog.md merge=union
+unreleased.md merge=union

.github/ISSUE_TEMPLATE/general-issue-template.md

@@ -27,6 +27,9 @@ Issue tracker is ONLY used for reporting bugs with technical details. "It doesn'
 3.
 4.
 
+## Version Information
+<!--- Which version of the app(s) were you using when you experienced this issue? -->
+
 ## Context (Environment)
 <!--- How has this issue affected you? What are you trying to accomplish? -->
 <!--- Providing context helps us come up with a solution that is most useful in the real world -->

.gitignore

@@ -26,8 +26,15 @@ internal/frontend/qml/ProtonUI/images
 internal/frontend/qml/ImportExportUI/images
 frontend/qml/*.qmlc
 
+# Credits files (generated).
+internal/**/credits.go
+
 # Build files
-bridge_darwin_*.tgz
+/launcher-*
+/bridge_*_*.tgz
+/ie_*_*.tgz
+/versioner
+/hasher
 cmd/Desktop-Bridge/deploy
 cmd/Import-Export/deploy
 internal/frontend/qt*/moc.cpp

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: gitlab.protontech.ch:4567/go/bridge-internal
+image: gitlab.protontech.ch:4567/go/bridge-internal:latest
 
 before_script:
   - eval $(ssh-agent -s)
@@ -44,7 +44,9 @@ lint:
   only:
     - branches
   script:
-    - make lint
+    - env GOMAXPROCS=$(( ${CI_TAG_CPU} / 2 )) make lint
+  tags:
+    - medium
 
 test:
   stage: test
@@ -60,6 +62,8 @@ test:
     - pass init `gpg --list-keys | grep "^   " | tail -1 | tr -d '[:space:]'`
     # Then finally run the tests
     - make test
+  tags:
+    - medium
 
 test-integration:
   stage: test
@@ -67,6 +71,8 @@ test-integration:
     - branches
   script:
     - VERBOSITY=debug make -C test test
+  tags:
+    - large
 
 dependency-updates:
   stage: test
@@ -82,7 +88,11 @@ dependency-updates:
   script:
     - make build
   artifacts:
-    expire_in: 2 week
+    # 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
+  tags:
+    - large
 
 build-linux:
   extends: .build-base
@@ -96,7 +106,7 @@ build-linux-qa:
   only:
     - web
   script:
-    - BUILD_TAGS="build_qa pmapi_qa" make build
+    - BUILD_TAGS="build_qa" make build
   artifacts:
     name: "bridge-linux-qa-$CI_COMMIT_SHORT_SHA"
     paths:
@@ -111,6 +121,17 @@ build-ie-linux:
     paths:
       - ie_*.tgz
 
+build-ie-linux-qa:
+  extends: .build-base
+  only:
+    - web
+  script:
+    - BUILD_TAGS="build_qa" make build-ie
+  artifacts:
+    name: "ie-linux-qa-$CI_COMMIT_SHORT_SHA"
+    paths:
+      - ie_*.tgz
+
 .build-darwin-base:
   extends: .build-base
   before_script:
@@ -140,7 +161,7 @@ build-darwin-qa:
   only:
     - web
   script:
-    - BUILD_TAGS="build_qa pmapi_qa" make build
+    - BUILD_TAGS="build_qa" make build
   artifacts:
     name: "bridge-darwin-qa-$CI_COMMIT_SHORT_SHA"
     paths:
@@ -155,6 +176,17 @@ build-ie-darwin:
     paths:
       - ie_*.tgz
 
+build-ie-darwin-qa:
+  extends: .build-darwin-base
+  only:
+    - web
+  script:
+    - BUILD_TAGS="build_qa" make build-ie
+  artifacts:
+    name: "ie-darwin-qa-$CI_COMMIT_SHORT_SHA"
+    paths:
+      - ie_*.tgz
+
 .build-windows-base:
   extends: .build-base
   services:
@@ -188,7 +220,7 @@ build-windows-qa:
     - apt-get update && apt-get -y install binutils-mingw-w64 tar gzip
     - ln -s /usr/bin/x86_64-w64-mingw32-windres /usr/bin/windres
     - go mod download
-    - TARGET_OS=windows BUILD_TAGS="build_qa pmapi_qa" make build
+    - TARGET_OS=windows BUILD_TAGS="build_qa" make build
   artifacts:
     name: "bridge-windows-qa-$CI_COMMIT_SHORT_SHA"
     paths:
@@ -209,6 +241,23 @@ build-ie-windows:
     paths:
       - ie_*.tgz
 
+build-ie-windows-qa:
+  extends: .build-windows-base
+  only:
+    - web
+  script:
+    # We need to install docker because qtdeploy builds for windows inside a docker container.
+    # Docker will connect to the dockerd daemon provided by the runner service docker:dind at tcp://docker:2375.
+    - curl -fsSL https://get.docker.com -o get-docker.sh && sh get-docker.sh
+    - apt-get update && apt-get -y install binutils-mingw-w64 tar gzip
+    - ln -s /usr/bin/x86_64-w64-mingw32-windres /usr/bin/windres
+    - go mod download
+    - TARGET_OS=windows BUILD_TAGS="build_qa" make build-ie
+  artifacts:
+    name: "ie-windows-qa-$CI_COMMIT_SHORT_SHA"
+    paths:
+      - ie_*.tgz
+
 # Stage: MIRROR
 
 mirror-repo:

.golangci.yml

@@ -1,3 +1,4 @@
+---
 run:
   timeout: 10m
   build-tags:
@@ -8,9 +9,11 @@ run:
 issues:
   exclude-use-default: false
   exclude:
-     - Using the variable on range scope `tt` in function literal
-     - should have comment (\([^)]+\) )?or be unexported # For now we are missing a lot of comments.
-     - at least one file in a package should have a package comment # For now we are missing a lot of comments.
+    - Using the variable on range scope `tt` in function literal
+    # For now we are missing a lot of comments.
+    - should have comment (\([^)]+\) )?or be unexported
+    # For now we are missing a lot of comments.
+    - at least one file in a package should have a package comment
 
   exclude-rules:
     - path: _test\.go
@@ -30,7 +33,7 @@ linters-settings:
 linters:
   # setting disable-all will make only explicitly enabled linters run
   disable-all: true
-  
+
   enable:
     - deadcode          # Finds unused code [fast: true, auto-fix: false]
     - errcheck          # Errcheck is a program for checking for unchecked errors in go programs. These unchecked errors can be critical bugs in some cases [fast: true, auto-fix: false]
@@ -49,7 +52,6 @@ linters:
     - 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]
-    #- gocognit          # Computes and checks the cognitive complexity of functions [fast: true, auto-fix: false]
     - goconst           # Finds repeated strings that could be replaced by a constant [fast: true, auto-fix: false]
     - gocritic          # The most opinionated Go source code linter [fast: true, auto-fix: false]
     - gocyclo           # Computes and checks the cyclomatic complexity of functions [fast: true, auto-fix: false]
@@ -58,15 +60,52 @@ linters:
     - goimports         # Goimports does everything that gofmt does. Additionally it checks unused imports [fast: true, auto-fix: true]
     - golint            # Golint differs from gofmt. Gofmt reformats Go source code, whereas golint prints out style mistakes [fast: true, auto-fix: false]
     - gosec             # Inspects source code for security problems [fast: true, auto-fix: false]
-    - interfacer        # Linter that suggests narrower interface types [fast: true, auto-fix: false]
-    - maligned          # Tool to detect Go structs that would take less memory if their fields were sorted [fast: true, auto-fix: false]
     - misspell          # Finds commonly misspelled English words in comments [fast: true, auto-fix: true]
     - nakedret          # Finds naked returns in functions greater than a specified function length [fast: true, auto-fix: false]
     - prealloc          # Finds slice declarations that could potentially be preallocated [fast: true, auto-fix: false]
-    - scopelint         # Scopelint checks for unpinned variables in go programs [fast: true, auto-fix: false]
     - stylecheck        # Stylecheck is a replacement for golint [fast: true, auto-fix: false]
     - unconvert         # Remove unnecessary type conversions [fast: true, auto-fix: false]
     - unparam           # Reports unused function parameters [fast: true, auto-fix: false]
     - whitespace        # Tool for detection of leading and trailing whitespace [fast: true, auto-fix: true]
-    #- wsl               # Whitespace Linter - Forces you to use empty lines! [fast: true, auto-fix: false]
-    #- lll               # Reports long lines [fast: true, auto-fix: false]
+    - asciicheck        # Simple linter to check that your code does not contain non-ASCII identifiers [fast: true, auto-fix: false]
+    - durationcheck     # check for two durations multiplied together [fast: false, auto-fix: false]
+    - exhaustive        # check exhaustiveness of enum switch statements [fast: false, auto-fix: false]
+    - exportloopref     # checks for pointers to enclosing loop variables [fast: false, auto-fix: false]
+    - forcetypeassert   # finds forced type assertions [fast: true, auto-fix: false]
+    - godot             # Check if comments end in a period [fast: true, auto-fix: true]
+    - goheader          # Checks is file header matches to pattern [fast: true, auto-fix: false]
+    - gomodguard        # Allow and block list linter for direct Go module dependencies. This is different from depguard where there are different block types for example version constraints and module recommendations. [fast: true, auto-fix: false]
+    - goprintffuncname  # Checks that printf-like functions are named with `f` at the end [fast: true, auto-fix: false]
+    - importas          # Enforces consistent import aliases [fast: false, auto-fix: false]
+    - makezero          # Finds slice declarations with non-zero initial length [fast: false, auto-fix: false]
+    - nilerr            # Finds the code that returns nil even if it checks that the error is not nil. [fast: false, auto-fix: false]
+    - predeclared       # find code that shadows one of Go's predeclared identifiers [fast: true, auto-fix: false]
+    - revive            # Fast, configurable, extensible, flexible, and beautiful linter for Go. Drop-in replacement of golint. [fast: false, auto-fix: false]
+    - rowserrcheck      # checks whether Err of rows is checked successfully [fast: false, auto-fix: false]
+    - sqlclosecheck     # Checks that sql.Rows and sql.Stmt are closed. [fast: false, auto-fix: false]
+    - tparallel         # tparallel detects inappropriate usage of t.Parallel() method in your Go test codes [fast: false, auto-fix: false]
+    - wastedassign      # wastedassign finds wasted assignment statements. [fast: false, auto-fix: false]
+    # - wsl               # Whitespace Linter - Forces you to use empty lines! [fast: true, auto-fix: false]
+    # - lll               # Reports long lines [fast: true, auto-fix: false]
+    # Consider to include:
+    # - gocognit          # Computes and checks the cognitive complexity of functions [fast: true, auto-fix: false]
+    # - cyclop            # checks function and package cyclomatic complexity [fast: false, auto-fix: false]
+    # - errorlint         # go-errorlint is a source code linter for Go software that can be used to find code that will cause problems with the error wrapping scheme introduced in Go 1.13. [fast: false, auto-fix: false]
+    # - exhaustivestruct  # Checks if all struct's fields are initialized [fast: false, auto-fix: false]
+    # - forbidigo         # Forbids identifiers [fast: true, auto-fix: false]
+    # - gci               # Gci control golang package import order and make it always deterministic. [fast: true, auto-fix: true]
+    # - gocognit          # Computes and checks the cognitive complexity of functions [fast: true, auto-fix: false]
+    # - goerr113          # Golang linter to check the errors handling expressions [fast: false, auto-fix: false]
+    # - gofumpt           # Gofumpt checks whether code was gofumpt-ed. [fast: true, auto-fix: true]
+    # - gomnd             # An analyzer to detect magic numbers. [fast: true, auto-fix: false]
+    # - gomoddirectives   # Manage the use of 'replace', 'retract', and 'excludes' directives in go.mod. [fast: true, auto-fix: false]
+    # - ifshort           # Checks that your code uses short syntax for if-statements whenever possible [fast: true, auto-fix: false]
+    # - nestif            # Reports deeply nested if statements [fast: true, auto-fix: false]
+    # - nlreturn          # nlreturn checks for a new line before return and branch statements to increase code clarity [fast: true, auto-fix: false]
+    # - noctx             # noctx finds sending http request without context.Context [fast: false, auto-fix: false]
+    # - nolintlint        # Reports ill-formed or insufficient nolint directives [fast: true, auto-fix: false]
+    # - paralleltest      # paralleltest detects missing usage of t.Parallel() method in your Go test [fast: true, auto-fix: false]
+    # - testpackage       # linter that makes you use a separate _test package [fast: true, auto-fix: false]
+    # - thelper           # thelper detects golang test helpers without t.Helper() call and checks the consistency of test helpers [fast: false, auto-fix: false]
+    # - wrapcheck         # Checks that errors returned from external packages are wrapped [fast: false, auto-fix: false]
+

BUILDS.md

@@ -1,6 +1,7 @@
 # Building ProtonMail Bridge and Import-Export app
 
 ## Prerequisites
+* 64-bit OS (the go-rfc5322 module cannot currently be compiled for 32-bit OSes)
 * Go 1.13
 * 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/)
@@ -13,13 +14,21 @@ To enable the sending of crash reports using Sentry please set the
 Otherwise, the sending of crash reports will be disabled.
 
 ## Build
-* for Windows please unset the `MSYSTEM` variable
+In order to build Bridge or Import-Export app with Qt interface we are using
+[Qt Go Binding](https://github.com/therecipe/qt).  The dependencies and
+installation of this tool is part of `make build` target.  If you have issues
+with installation of therecipe/qt we recommend to follow [this
+wiki](https://github.com/therecipe/qt/wiki/Installation-on-Linux)
+
+Please note that `$(go env GOPATH)/bin` must be in your `PATH` to ensure
+binaries installed by `therecipe/qt` (such as `qtdeploy`) are found. Also,
+before you start build **on Windows**, please unset the `MSYSTEM` variable
+
 
 ```bash
 export MSYSTEM=
 ```
 
-
 ### Build Bridge
 * in project root run
 
@@ -32,6 +41,17 @@ make build
     * for `windows`, the binary will have the file extension `.exe` (e.g `proton-bridge.exe`)
     * for `darwin`, the application will be created with name of the project directory (e.g `proton-bridge.app`)
 
+#### Build Bridge without GUI
+* If you need to build bridge without Qt dependencies, you can do so by running
+
+```bash
+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
+
 ### Build Import-Export
 * in project root run
 
@@ -44,6 +64,17 @@ make build-ie
     * for `windows`, the binary will have the file extension `.exe` (e.g `proton-bridge.exe`)
     * for `darwin`, the application will be created with name of the project directory (e.g `proton-bridge.app`)
 
+### Launchers
+Launchers are only included in official distributions and provide the public
+key used to verify signed app binaries, allowing the automatic update feature.
+See README for more information.
+
+### Tags
+Note that repository contains both Bridge and Import-Export apps and they are
+not released together. Therefore, each app has own tag prefix. Bridge tags
+starts with `br-` and Import-Export tags starts with `ie-`. Both tags continue
+with semantic versioning `MAJOR.MINOR.PATCH`. An example of full tag is
+`br-1.4.4` or `ie-1.1.2` (current versions in October 2020).
 
 ## Useful tests, lints and checks
 In order to be able to run following commands please install the development dependencies: 

COPYING_NOTES.md

@@ -41,7 +41,6 @@ ProtonMail Bridge includes the following 3rd party software:
 * [imap-appendlimit](https://github.com/emersion/go-imap-appendlimit)       | Available under [license](https://github.com/emersion/go-imap-appendlimit/blob/master/LICENSE)
 * [imap-idle](https://github.com/emersion/go-imap-idle)                     | Available under [license](https://github.com/emersion/go-imap-idle/blob/master/LICENSE)
 * [imap-quota](https://github.com/emersion/go-imap-quota)                   | Available under [license](https://github.com/emersion/go-imap-quota/blob/master/LICENSE)
-* [imap-specialuse](https://github.com/emersion/go-imap-specialuse)         | Available under [license](https://github.com/emersion/go-imap-specialuse/blob/master/LICENSE)
 * [sasl](https://github.com/emersion/go-sasl)                               | Available under [license](https://github.com/emersion/go-sasl/blob/master/LICENSE)
 * [smtp](https://github.com/emersion/go-smtp)                               | Available under [license](https://github.com/emersion/go-smtp/blob/master/LICENSE)
 * [textwrapper](https://github.com/emersion/go-textwrapper)                 | Available under [license](https://github.com/emersion/go-textwrapper/blob/master/LICENSE)

Changelog.md

@@ -1,8 +1,382 @@
-# ProtonMail Bridge Changelog
+# ProtonMail Bridge and Import-Export app Changelog
 
 Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
-## Unreleased
+## [Bridge 1.8.0] James
+
+### Added
+* GODT-1056 Check encrypted size of the message before upload.
+* GODT-1143 Turn off SMTP server while no connection.
+* GODT-1089 Explicitly open system preferences window on BigSur.
+
+### Fixed
+* GODT-1159 SMTP server not restarting after restored internet.
+* GODT-1146 Refactor handling of fetching BODY[HEADER] (and similar) regarding trailing newline.
+* GODT-1152 Correctly resolve wildcard sequence/UID set.
+* Other: Avoid API jail.
+
+
+## [Bridge 1.7.1] Iron
+
+### Fixed
+* GODT-1081 Properly return newlines when returning headers.
+* GODT-1150 Externally encrypted messages with missing private key would not be built with custom message.
+* GODT-1141 Attachment is named as attachment.bin in some cases.
+
+
+## [Bridge 1.7.0] Iron
+
+### Added
+* GODT-213 New message builder:
+* Preserve Content-Type for undecryptable message body.
+* Use application/octet-stream for encrypted parts.
+* Force no transfer encoding for embedded message/rfc822 parts.
+* Remove dead code GetRelatedHeader/GetRelatedBoundary.
+* Correctly expect text/plain in custom message text parts.
+* Force text/plain for custom message text part.
+* Complex external encrypted tests (multipart/alternative, message/rfc822 attachment).
+
+### Fixed
+* GODT-1136 DB Cache header from builder and test.
+* GODT-1113 Fix tray icon size on macOS Big Sur.
+* GODT-947 Force colors in logs.
+
+
+## [Bridge 1.6.9] HZM
+
+### Fixed
+* GODT-1121 'Keep the application up to date' switches off after restarting Bridge.
+
+
+## [Bridge 1.6.8] HZM
+
+### Fixed
+* GODT-1120 Use Info level in internal/app logs.
+
+
+## [IE 1.3.3] Farg
+
+### Fixed
+* GODT-1120 Use Info level in internal/app logs.
+
+
+## [Bridge 1.6.7] HZM
+
+### Added
+* GODT-1111 Add correct metadata to Windows executables.
+* GODT-1112 Add application to Windows Firewall exclusion list on install.
+* GODT-1077 Track how many times message is built to help understand re-syncs.
+
+### Changed
+* GODT-247 Revise all storage locations (cache, config, local etc).
+
+### Fixed
+* GODT-948 Parser does not handle embedding of Content-Type: message/rfc822.
+* GODT-1079 Correct 9001 error handling on login.
+
+### Security
+* GODT-1105 Dylib Hijacking security fix.
+
+
+## [IE 1.3.2] Farg
+
+### Added
+* GODT-1111 Add correct metadata to Windows executables.
+* GODT-1112 Add application to Windows Firewall exclusion list on install.
+
+### Changed
+* GODT-247 Revise all storage locations (cache, config, local etc).
+
+### Fixed
+* GODT-1079 Correct 9001 error handling on login.
+
+### Security
+* GODT-1105 Dylib Hijacking security fix.
+
+
+## [IE 1.3.1] Farg
+
+### Changed
+* GODT-1047 No silent updates for Import-Export app.
+* GODT-247 Cache and update files moved from user's cache to config.
+
+### Fixed
+* Other: include latest go.mod/go.sum changes.
+* GODT-803 Fix import to wrong target address.
+* GODT-948 Embedded messages.
+* GODT-1043 Fix showing long login error in GUI dialog.
+
+
+## [Bridge 1.6.6] HZM
+
+### Added
+* Other: QA build checks for update every 5 minutes.
+* Other: QA build adds debug message dump when sending.
+
+### Changed
+* GODT-1045 build without Qt by default.
+
+### Fixed
+* GODT-1029 Fix tray icon not updating under certain conditions.
+* GODT-1062 Fix lost notification bar when window is closed.
+* GODT-1058 Install version after chaning channel right away only in case of downgrade.
+* GODT-1073 Re-write autostart link on every start if turned on in preferences.
+* GODT-1055 Fix flaky empty trash test.
+
+
+## [Bridge 1.6.5] HZM
+
+### Changed
+* GODT-1059 Check if keychain is usable on linux before using it by default.
+
+
+## [Bridge 1.6.4] HZM
+
+### Added
+* Other: Autoupdates CLI commands.
+
+### Removed
+* Other: Remove credits.
+
+### Changed
+* GODT-980 Placeholder for user agent.
+* GODT-1036 Event loop Sentry reporting of failures and refresh.
+* GODT-957 Increase space to hide difference.
+* GODT-937 Add keychain switcher to frontend.
+* GODT-1008 Fix transparent dialog under certain conditions.
+* GODT-1034 More tolerant connection speed detection.
+* GODT-1018 Pre-push git hook to check lints.
+* Other: Make all command line flags as const strings.
+* GODT-1041 Log IMAP requests to debug Apple Mail re-sync issue.
+* Other: Pretty print prefs.json.
+
+### Fixed
+* Other: Fix nogui build.
+* GODT-317 Fix wrong total mailbox size in Apple Mail.
+* Other: Fixing changelog punctuation.
+* GODT-797 APPEND waits for EXPUNGE to prevent data loss when Outlook moves from Spam or Trash.
+
+
+## [Bridge 1.6.3] HZM
+
+### Added
+* GODT-337 Desktop files.
+
+### Changed
+* GODT-885 Do not explicitly unlabel folders during move to match behaviour of other clients.
+* GODT-616 Better user message about wrong mailbox password.
+* GODT-1021 Do not allow copy Inbox->Sent or Sent->Inbox.
+* GODT-976 Exclude updates from clearing cache and clear cache, including updates, while switching early access off.
+* GODT-1033 Retry starting IMAP server after connection was down.
+
+### Fixed
+* GODT-1011 Stable integration test deleting many messages using UID EXPUNGE.
+* GODT-1015 Use lenient version parser to properly parse version provided by Mac.
+* GODT-919 Notify about update right after the start.
+* GODT-919 GODT-1022 Logs and signals.
+
+
+## [IE 1.3.0] Farg
+
+### Changed
+* GODT-1019 Remove dependency on go-apple-mobileconfig.
+* GODT-928 Reject messages which are too large.
+* GODT-999 Sending: do not send empty objects to API.
+
+## [Bridge 1.6.2] HZM
+
+### Fixed
+* GODT-1010 Strip angle brackets from external ID.
+
+## [Bridge 1.6.1] HZM
+
+### Added
+* GODT-1007 Notify user when version is the latest.
+
+### Fixed
+* GODT-787 GODT-978 Fix IE and Bridge importing to Sent not showing up in Inbox (setting up flags properly).
+* GODT-1006 Use correct macOS keychain name.
+* GODT-1009 Set ContentID if present and not explicitly attachment.
+* GODT-1008 Transparent welcome message.
+
+
+## [Bridge 1.6.0] HZM
+
+### Added
+* GODT-705 Allow silent update in Bridge and Import-Export app.
+* GODT-958 Release notes per eaach update channel.
+* GODT-875 Added GUI dialog on force update.
+* GODT-820 Added GUI notification on impossibility of update installation (both silent and manual).
+* GODT-870 Added GUI notification on error during silent update.
+* GODT-805 Added GUI notification on update available.
+* GODT-804 Added GUI notification on silent update installed (promt to restart).
+* GODT-275 Added option to disable autoupdates in settings (default autoupdate is enabled).
+* GODT-874 Added manual triggers to Updater module.
+* GODT-851 Added support of UID EXPUNGE.
+
+### Removed
+* GODT-248 Remove dependency on go-appdir.
+* GODT-208 Remove deprecated use of BuildNameToCertificate.
+
+### Fixed
+* Check deprecated status code first to better determine API error.
+* GODT-831 Fix reporting bug from accounts with empty account name.
+* GODT-831 Cancel request of uploading attachment if reading/writing it fails.
+* GODT-991 Fix panic when stopping import progress during loading mailboxes info.
+* GODT-895 Fix panic when modifying addresses during changing address mode.
+* GODT-946 Fix flaky tests notifying changes.
+* GODT-979 Fix panic when trying to parse a multipart/alternative section that has no child sections.
+* GODT-900 Remove \Deleted flag after re-importing the message (do not delete messages by moving to local folder and back).
+
+### Changed
+* Rename channels `beta->early`, `live->stable`.
+* Bump gopenpgp dependency to v2.1.3 for improved memory usage.
+* GODT-97 Don't log errors caused by SELECT "".
+* GODT-806 GUI dialog on manual update. Added autoupdates checkbox. Simplifyed installation process GUI.
+* GODT-912 Scroll bar behaviour in settings tab.
+* GODT-149 Send heartbeat ASAP on each new calendar day.
+* GODT-792 Stop IMAP server while no internet connection.
+* GODT-792 Cache message size every time to reduce network traffic.
+* GODT-792 Cache body structure in order to reduce network traffic.
+* GODT-792 GODT-908 Cache body structure in order to reduce network traffic.
+* GODT-908 Do not unpause event loop if other mailbox is still fetching.
+
+
+## [Bridge 1.5.7] Golden Gate
+
+### Fixed
+CSB-331 Fix sending error due to mixed case in sender address.
+
+## [Bridge 1.5.6] Golden Gate
+
+### Added
+* GODT-797 EXPUNGE waits for APPEND to prevent data loss when Outlook moves from Spam to Inbox.
+
+
+## [Bridge 1.5.5] Golden Gate
+
+### Changed
+* GODT-922 Fix panic during restarting the bridge.
+* GODT-945 Fix panic in integration tests caused by concurrent map writes.
+* GODT-732 Fix usage of fontawesome.
+* GODT-951 Properly parse message with long lines in header and long header split to multiple lines (upgrading to latest go-message).
+* GODT-894 Fix panic when sending while account is logging in.
+* GODT-858 Bump go-rfc5322 dependency to v0.5.0 to handle some invalid RFC5322 groups and add support for semicolon delimiter in address-list.
+* GODT-923 Fix listener locking.
+* GODT-389 Prefer `From` header instead of `MAIL FROM` address.
+* GODT-898 Only set ContentID for inline attachments.
+* GODT-773 Replace `INTERNALDATE` older than birthday of RFC822 by birthday of RFC822 to not crash Apple Mail.
+* GODT-927 Avoid to call API with empty label name.
+* GODT-915 Bump go-imap dependency and remove go-imap-specialuse dependency.
+
+## [Bridge 1.5.4] Golden Gate
+
+### Added
+* Log warning about permanently deleting messages.
+
+### Fixed
+* License path on Arch and Windows.
+
+## [Bridge 1.5.3] Golden Gate [Import-Export 1.2.3] Elbe
+
+### Added
+* GODT-906 Handle RFC2047-encoded content transfer encoding values.
+* GODT-887 Make supports build with native Qt.
+
+### Changed
+* GODT-893 Bump go-rfc5322 dependency to v0.2.1 to properly detect syntax errors during parsing.
+* GODT-892 Swap type and value from sentry exception and cut panic handlers from the traceback.
+* GODT-854 EXPUNGE and FETCH unilateral responses are returned before OK EXPUNGE or OK STORE, respectively.
+* #109 Renamed COPYING.md to not be read by [pkg-go-dev](https://pkg.go.dev/license-policy).
+
+### Removed
+* GODT-651 Build creates proper binary names.
+* GODT-148 Allow import (using the Import-Export app) of already encrypted messages as is.
+* GODT-202 Update to latest go-smtp.
+
+### Fixed
+* GODT-135 Support parameters in SMTP `FROM MAIL` command, such as `BODY=7BIT`, or empty value `FROM MAIL:<>` used by some clients.
+* GODT-338 GODT-781 GODT-857 GODT-866 Flaky tests.
+* GODT-773 Replace old dates with birthday of RFC822 to not crash Apple Mail. Original is available under `X-Original-Date` header.
+
+## [Bridge 1.5.2] Golden Gate
+
+### Changed
+* GODT-883 Use `ClearPacket` for `text/plain` with signature.
+
+
+## [Bridge 1.5.1] Golden Gate
+
+### Added
+* GODT-701 Try load messages one-by-one if IMAP server errors with batch load
+  and not interrupt the transfer.
+* GODT-878 Tests for send packet creation logic.
+
+### Changed
+* GODT-651 Build creates proper binary names.
+* GODT-878 Fix an issue where the random session key is inadvertently sent to
+  the Proton server. The data payload is always encrypted within TLS, but this
+  is still a potential privacy problem. Discovered by Proton's internal
+  security audit team.
+* GODT-878 Refactor and move the send packet creation logic to `pmapi.SendMessageReq`.
+* GODT-878 Encryption of session keys moved to pmapi.
+
+
+## [IE 1.2.1, 1.2.2] Elbe
+
+### Added
+* GODT-799 Skipped messages do not change total counts but shows as separate number.
+
+### Fixed
+* GODT-799 Fix skipping unwanted folders importing from mbox files.
+* GODT-769 Close connection before deleting labels to prevent panics accessing deleted bucket.
+
+### Removed
+* GODT-766 Remove GUI popup for IMAP TLS error.
+
+
+## [Bridge 1.5.0] Golden Gate
+
+### Changed
+* Updated go-mbox dependency back to upstream.
+
+### Fixed
+* GODT-847 Waiting for unilateral update during deleting the message.
+* GODT-849 Show in error counts in the end also lost messages.
+* GODT-835 Do not include conversation ID in references to show properly conversation threads in clients.
+* GODT-685 Improve deb packaging regarding dejavu font.
+
+
+## [IE 1.2.0] Elbe
+
+### Added
+* GODT-763 Detect Gmail labels from All Mail mbox export (using X-Gmail-Label header).
+* GODT-834 Info about tags in BUILDS.md and link to Import-Export page in README.md.
+* GODT-777 Support Apple Mail MBOX export format.
+* GODT-731 Re-open Import-Export app from the second instance.
+
+### Fixed
+* GODT-677 Windows IE: global import settings not fit in window.
+* GODT-794 Congo fails to update to Danube.
+* GODT-749 Don't force PGP/Inline when sending plaintext messages.
+* GODT-764 Fix deadlock in integration tests for Import-Export.
+* GODT-662 Do not resume paused transfer progress after dismissing cancel popup.
+* GODT-772 Sanitize mailbox names for exporting to follow OS restrictions.
+* GODT-771 Show fatal errors after export is terminated.
+* GODT-779 Do not propagate updates when progress is stopped.
+* GODT-779 Unpause progress during fatal error to properly stop progress.
+* GODT-779 Stop ongoing transfer calls sooner (re-check after import request is generated).
+* Fix measurement of uploading attachments during transfer.
+* GODT-827 Do not spam sentry with bad ID by integration test.
+* GODT-700 Fix UTF-7 incompatibility.
+* GODT-837 Fix flaky TestFailUnpauseAndStops.
+* GODT-782 Don't use TLS pinning when checking connectivity status.
+
+### Changed
+* TLS pins conform to official list.
+
+
+## [Bridge 1.4.5] Forth
 
 ### Fixed
 * GODT-829 Remove `NoInferior` to display sub-folders in apple mail.
@@ -11,8 +385,8 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
 ### Fixed
 * GODT-798 Replace, don't add, transfer encoding when making body 7-bit clean.
-* Move/Copy duplicate for emails with References in Outlook
-* CSB-247 Cannot update from 1.4.0
+* Move/Copy duplicate for emails with References in Outlook.
+* CSB-247 Cannot update from 1.4.0.
 
 
 ## [Bridge 1.4.3] Forth
@@ -31,6 +405,22 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * GODT-765 Improve speed of checking whether message is deleted.
 
 
+## [IE 1.1.2] Danube (beta 2020-09-xx)
+
+### Fixed
+* GODT-770 Better handling of extraneous end-of-mail indicator.
+* GODT-776 Fix crash when IMAP client connects while account is logging in.
+* GODT-744 User agent not being sent to sentry.
+
+### Changed
+* Bump crypto version to v0.0.0-20200818122824-ed5d25e28db8.
+* GODT-785 Clear separation of different message IDs in integration tests.
+### Changed
+* GODT-741 Import-Export shows "Unable to parse time" notice instead of zero time in error report window.
+
+* Bump crypto version to v0.0.0-20200818122824-ed5d25e28db8.
+* GODT-374 Allow to send calendar update multiple times.
+
 ## [IE 1.1.1] Danube (beta 2020-09-xx) [Bridge 1.4.1] Forth (beta 2020-09-xx)
 
 ### Fixed
@@ -44,6 +434,8 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 ### Fixed
 * GODT-703 Import-Export showed always at least one total message.
 * GODT-738 Fix for mbox files with long lines.
+### Fixed
+* GODT-732 Do not mix font awesome icon with regular text to avoid issues on Fedora.
 
 
 ## [Bridge 1.4.0] Forth
@@ -52,6 +444,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * GODT-682 Persistent anonymous API cookies for Import-Export.
 * GODT-357 Use go-message to make a better message parser.
 * GODT-720 Time measurement of progress for Import-Export.
+* GODT-693 Launcher.
 
 ### Changed
 * GODT-511 User agent format changed.
@@ -78,60 +471,60 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * GODT-461 Add support for `\Deleted` flag.
 
 ### Changed
-* GODT-462 Pausing event loop while FETCHing to prevent EXPUNGE
-* Wait for unilateral response to be delivered
+* GODT-462 Pausing event loop while FETCHing to prevent EXPUNGE.
+* Wait for unilateral response to be delivered.
 * GODT-409 Set flags have to replace all flags.
 * GODT-531 Better way to add trusted certificate in macOS.
-* Bumped golangci-lint to v1.29.0
+* Bumped golangci-lint to v1.29.0.
 * GODT-549 Check log file size more often to prevent huge log files.
 * Bumped various dependencies:
-    * andybalholm/cascadia v1.1.0 -> v1.2.0
-    * emersion/go-imap-specialuse 20161227184202-ba031ced6a62 -> 20200722111535-598ff00e4075
-    * emersion/go-sasl 20191210011802-430746ea8b9b -> 20200509203442-7bfe0ed36a21
-    * github.com/go-resty/resty/v2 v2.2.0 -> v2.3.0
-    * github.com/golang/mock v1.4.3 -> v1.4.4
-    * github.com/google/go-cmp v0.4.0 -> v0.5.1
-    * github.com/hashicorp/go-multierror v1.0.0 -> v1.1.0
-    * github.com/jaytaylor/html2text 20200220170450-61d9dc4d7195 -> 20200412013138-3577fbdbcff7
-    * github.com/jhillyerd/enmime v0.8.0 -> v0.8.1
-    * github.com/keybase/go-keychain 20200218013740-86d4642e4ce2 -> 20200502122510-cda31fe0c86d
-    * github.com/logrusorgru/aurora 20200102142835-e9ef32dff381 -> v2.0.3+incompatible
-    * github.com/miekg/dns v1.1.29 -> v1.1.30
-    * github.com/nsf/jsondiff 20190712045011-8443391ee9b6 -> 20200515183724-f29ed568f4ce
-    * github.com/sirupsen/logrus v1.4.2 -> v1.6.0
-    * github.com/stretchr/testify v1.5.1 -> v1.6.1
-    * github.com/therecipe/qt 20200126204426-5074eb6d8c41 -> 20200701200531-7f61353ee73e
-    * github.com/urfave/cli v1.22.3 -> v1.22.4
-    * golang.org/x/net 20200301022130-244492dfa37a -> 20200707034311-ab3426394381
-    * golang.org/x/text v0.3.2 -> v0.3.3
+    * Updated andybalholm/cascadia v1.1.0 -> v1.2.0.
+    * Updated emersion/go-imap-specialuse 20161227184202-ba031ced6a62 -> 20200722111535-598ff00e4075.
+    * Updated emersion/go-sasl 20191210011802-430746ea8b9b -> 20200509203442-7bfe0ed36a21.
+    * Updated github.com/go-resty/resty/v2 v2.2.0 -> v2.3.0.
+    * Updated github.com/golang/mock v1.4.3 -> v1.4.4.
+    * Updated github.com/google/go-cmp v0.4.0 -> v0.5.1.
+    * Updated github.com/hashicorp/go-multierror v1.0.0 -> v1.1.0.
+    * Updated github.com/jaytaylor/html2text 20200220170450-61d9dc4d7195 -> 20200412013138-3577fbdbcff7.
+    * Updated github.com/jhillyerd/enmime v0.8.0 -> v0.8.1.
+    * Updated github.com/keybase/go-keychain 20200218013740-86d4642e4ce2 -> 20200502122510-cda31fe0c86d.
+    * Updated github.com/logrusorgru/aurora 20200102142835-e9ef32dff381 -> v2.0.3+incompatible.
+    * Updated github.com/miekg/dns v1.1.29 -> v1.1.30.
+    * Updated github.com/nsf/jsondiff 20190712045011-8443391ee9b6 -> 20200515183724-f29ed568f4ce.
+    * Updated github.com/sirupsen/logrus v1.4.2 -> v1.6.0.
+    * Updated github.com/stretchr/testify v1.5.1 -> v1.6.1.
+    * Updated github.com/therecipe/qt 20200126204426-5074eb6d8c41 -> 20200701200531-7f61353ee73e.
+    * Updated github.com/urfave/cli v1.22.3 -> v1.22.4.
+    * Updated golang.org/x/net 20200301022130-244492dfa37a -> 20200707034311-ab3426394381.
+    * Updated golang.org/x/text v0.3.2 -> v0.3.3.
 * Set first-start to false in bridge, not in frontend.
 * GODT-400 Refactor sendingInfo.
 * GODT-513 Update routes to API v4.
 * GODT-551 Do not ignore errors during message flagging.
-* GODT-380 Adding IE GUI to Bridge repo and building
-    * BR: extend functionality of PopupDialog
-    * BR: makefile APP_VERSION instead of BRIDGE_VERSION
-    * BR: use common logs function for Qt
-    * BR: change `go.progressDescription` to `string`
-    * IE: Rounded button has fa-icon
-    * IE: `Upgrade` → `Update`
-    * IE: Moving `AccountModel` to `qt-common`
-    * IE: Added `ReportBug` to `internal/importexport`
-    * IE: Added event watch in GUI
-    * IE: Removed `onLoginFinished`
-    * Structure for transfer rules in QML
+* GODT-380 Adding IE GUI to Bridge repo and building.
+    * BR: extend functionality of PopupDialog.
+    * BR: makefile APP_VERSION instead of BRIDGE_VERSION.
+    * BR: use common logs function for Qt.
+    * BR: change `go.progressDescription` to `string`.
+    * IE: Rounded button has fa-icon.
+    * IE: `Upgrade` → `Update`.
+    * IE: Moving `AccountModel` to `qt-common`.
+    * IE: Added `ReportBug` to `internal/importexport`.
+    * IE: Added event watch in GUI.
+    * IE: Removed `onLoginFinished`.
+    * Structure for transfer rules in QML.
 * GODT-213 Convert panics from message parser to error.
 * GODT-585 Do not allow deleting messages from All Mail.
 
 ### Fixed
-* GODT-655 Fix date picker with automatic Windows DST
+* GODT-655 Fix date picker with automatic Windows DST.
 * GODT-454 Fix send on closed channel when receiving unencrypted send confirmation from GUI.
-* GODT-597 Duplicate sending when draft creation takes too long
+* GODT-597 Duplicate sending when draft creation takes too long.
 * GODT-634 Hover on links in popups.
 
 
 
-## [v1.3.x] Emma (v1.3.2 beta 2020-08-04, v1.3.3 beta 2020-08-06, v1.3.3 live 2020-08-12)
+## [Bridge 1.3.x] Emma (v1.3.2 beta 2020-08-04, v1.3.3 beta 2020-08-06, v1.3.3 live 2020-08-12)
 
 ### Added
 * GODT-554 Detect and notify about "bad certificate" IMAP TLS error.
@@ -191,7 +584,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Issue causing deadlock when reloading users keys due to double-locking of a mutex.
 * Correctly handle failure to unlock single key.
 * GODT-479 Fix flaky integration tests.
-* GODT-484 Fix infinite loop when decoding invalid 2231 charset
+* GODT-484 Fix infinite loop when decoding invalid 2231 charset.
 * GODT-267 Correctly detect if a message is a draft even if does not have DraftLabel.
 * GODT-308 Reduce minimum read speed threshold to avoid issues with flaky internet.
 * GODT-321 Changing address ordering would cause all messages to disappear in combined mode.
@@ -200,7 +593,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * GODT-427 Fix race condition in auth refresh that could cause user to be logged out.
 
 
-## [v1.2.8] Donghai-fix-append  (beta 2020-06-XXX)
+## [Bridge 1.2.8] Donghai-fix-append  (beta 2020-06-XXX)
 
 ### Changed
 * GODT-396 reduce number of EXISTS calls.
@@ -209,7 +602,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 ### Fixed
 * GODT-502 Fixed crash when unable to parse a message header.
 
-## [v1.2.7] Donghai-fix-sync - (beta 2020-05-07 live 2020-04-20)
+## [Bridge 1.2.7] Donghai-fix-sync - (beta 2020-05-07 live 2020-04-20)
 
 ### Added
 * IMAP extension MOVE with UIDPLUS support.
@@ -232,7 +625,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Use correct binary name when finding location of addcert.scpt.
 
 
-## [v1.2.6] Donghai - beta (2020-03-31)
+## [Bridge 1.2.6] Donghai - beta (2020-03-31)
 
 ### Added
 * GODT-145 Support drafts.
@@ -287,13 +680,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * UserIDs were not checked when importing to Sent folder (affects copying from account1/sent to account2/sent).
 
 
-## [v1.2.5] Charles - live (2020-03-11) beta (from 2020-02-10)
-
-### Hotfix
-* CSB-40 panic in credential store.
-* Keyring unlocking locker.
-* No panic on failed html parse.
-* Too many open files.
+## [Bridge 1.2.5] Charles - live (2020-03-11) beta (from 2020-02-10)
 
 ### Added
 * GODT-112 Migration of preferences from c10 to c11.
@@ -338,13 +725,13 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
     * Separated IMAP to store and IMAP.
     * Store is responsible for everything about db and calls to pmapi, including event loop, sync, address mode.
     * IMAP is responsible only for IMAP interfaces.
-    * Event loop is only one per ProtonMail account (instead of one per alias)
-    * It also means only one database per account (instead of one per address)
-    * Changing address mode is not destroying database, only buckets with IDs mapping (keeping metadata for account)
+    * Event loop is only one per ProtonMail account (instead of one per alias).
+    * It also means only one database per account (instead of one per address).
+    * Changing address mode is not destroying database, only buckets with IDs mapping (keeping metadata for account).
     * Before first sync we set event ID so we will not miss changes happening during sync.
     * Thanks to previous point we are not starting new sync when we finish first one because of unprocessed events.
-    * Sync is not blocking event loop (user can get new messages even during sync)
-    * Sync is not blocking reading operations (user can list mailboxes even before first sync is done)
+    * Sync is not blocking event loop (user can get new messages even during sync).
+    * Sync is not blocking reading operations (user can list mailboxes even before first sync is done).
     * Sync is not blocking writing operations such as mark messages read/unread and so on.
     * Most operations have to be passed to API and only event loop is writing them to the database.
     * Avoid relying on counts API endpoint; use event counts as much as possible.
@@ -354,8 +741,8 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
     * Synchronisation will create a label if not yet present.
     * Labels and Folders (including system folders) are stored in DB together with their counts for offline read-out.
     * AddressIDs for all user addresses are stored in DB.
-    * IMAP updates channel is set when an IMAP client connects (and IMAP updates are dropped until then)
-    * DB keeps track of address mode (split/combined)
+    * IMAP updates channel is set when an IMAP client connects (and IMAP updates are dropped until then).
+    * DB keeps track of address mode (split/combined).
 * Event loop starts as soon as user is initialised (i.e. logged in), not just when imap is connected.
 * Use pmapi v1.0.13.
 * Logout user if initialisation fails.
@@ -363,6 +750,10 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Use godog v0.8.0 under new name 'cucumber' (instead of DATA-DOG).
 
 ### Fixed
+* CSB-40 panic in credential store.
+* Keyring unlocking locker.
+* No panic on failed html parse.
+* Too many open files.
 * #1057 Logging in to an already logged in user would display unrelated error "invalid mailbox password".
 * #1056 Changing mailbox password sometimes didn't log out user.
 * #1066 Split address mode can not work when credentials store is cleared.
@@ -378,7 +769,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * GODT-103 User keys were not unlocked later if they were not unlocked during startup.
 
 
-## [v1.2.4] Brooklyn beta (2019-12-16)
+## [Bridge 1.2.4] Brooklyn beta (2019-12-16)
 
 ### Added
 * #976: fix slow authentication.
@@ -393,7 +784,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Fixed an issue where entering an in-use port multiple times via the CLI would make bridge use it.
 * Update therecipe/qt and Qt to 5.13.
 
-## [v1.2.3] Akashi - live (2019-11-05) beta (2019-10-22)
+## [Bridge 1.2.3] Akashi - live (2019-11-05) beta (2019-10-22)
 
 ### Added
 * #963 report first-start metric with bridge version.
@@ -423,17 +814,17 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Code made compatible with name changes in go-pmapi.
 
 
-## [v1.2.2] - beta and live 2019-09-06
+## [Bridge 1.2.2] - beta and live 2019-09-06
 
 ### Changed
 * User compare case insensitive.
 
-## [v1.2.1] - beta and live 2019-09-05
+## [Bridge 1.2.1] - beta and live 2019-09-05
 
 ### Changed
 * #924 fix start of bridge without internet connection.
 
-## [v1.2.0] - beta 2019-08-22
+## [Bridge 1.2.0] - beta 2019-08-22
 
 ### Added
 * #903 added http.Client timeout to not hang out forever.
@@ -533,7 +924,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Handle logout in event loop.
 
 
-## [v1.1.6] - 2019-07-09 (beta 2019-07-01)
+## [Bridge 1.1.6] - 2019-07-09 (beta 2019-07-01)
 
 ### Added
 * #841 assume text/plain during sending e-mails when missing content type.
@@ -565,7 +956,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Lint corrections.
 
 
-## [v1.1.5] - 2019-05-23 (beta 2019-05-23, 2019-05-16)
+## [Bridge 1.1.5] - 2019-05-23 (beta 2019-05-23, 2019-05-16)
 
 ### Changed
 * Fix custom message format.
@@ -579,7 +970,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Only one crash from second instance.
 * During event `MessageID` in log as field.
 
-## [v1.1.4 live] - 2019-04-10 (beta 2019-04-05, 2019-03-27)
+## [Bridge 1.1.4 live] - 2019-04-10 (beta 2019-04-05, 2019-03-27)
 
 ### Added
 * Address with port to IMAP debug.
@@ -600,7 +991,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 ### Removed
 * #750 Synchronization after 450 messages.
 
-## [v1.1.3] - 2019-03-04
+## [Bridge 1.1.3] - 2019-03-04
 
 ### Added
 * Sentry crash reporting in main.
@@ -612,13 +1003,13 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * #720 sync every 3 pages.
 * #512 extending list of charsets go-pm-mime!4.
 
-## [v1.1.2] - beta only 2019-02-21
+## [Bridge 1.1.2] - beta only 2019-02-21
 
 ### Changed
 * #512 fail on unknown charset.
 * #729 #733 visitor for MIME parsing.
 
-## [v1.1.1] - 2019-02-11
+## [Bridge 1.1.1] - 2019-02-11
 ### Added
 * #671 include `name` param in attachment `Content-Type` (in addition to `Content-Disposition` param `filename`).
 * #671 do not include content headers for section requests e.g. `BODY.PEEK[2]`.
@@ -671,7 +1062,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * SMTP stays authenticated after sent message.
 * Reduce memory, processor and number of API calls.
 
-## [v1.1.0] - 2018-10-22
+## [Bridge 1.1.0] - 2018-10-22
 
 ### Removed
 * `go-pmapi.Config.ClientSecret`.
@@ -747,11 +1138,11 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Additional synchronization of mail database.
 
 
-## [v1.0.6 silent] - 2018-08-23
+## [Bridge 1.0.6 silent] - 2018-08-23
 ### Added
 * New svg icon in linux package.
 
-## [v1.0.6] - 2018-08-09
+## [Bridge 1.0.6] - 2018-08-09
 
 ### Added
 * `backend.GetUserSettings()`.
@@ -780,7 +1171,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Frequent Thunderbird timeout.
 * SMTP requests not case-sensitive.
 
-## [v1.0.5] - 2018-07-12
+## [Bridge 1.0.5] - 2018-07-12
 
 ### Added
 * UpdateCurrentAgent from lastMailClient.
@@ -812,7 +1203,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Fixed 7bit MIME issue while sending.
 
 
-## [v1.0.4] - 2018-05-15
+## [Bridge 1.0.4] - 2018-05-15
 
 ### Changed
 * Version files available at both download and static.
@@ -833,11 +1224,11 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Notification that outgoing email will be delivered as non-encrypted.
 * NOTE: Due to a change of the keychain format, you will need to add your account(s) to the Bridge after installing this version.
 
-### Bugs fixed
+### Fixed bugs
 * Support accounts with same user names.
 * Support sending vCalendar event.
 
-## [v1.0.3] - 2018-03-26
+## [Bridge 1.0.3] - 2018-03-26
 * All from silent updates plus following.
 
 ### Changed
@@ -872,7 +1263,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 * Remove firewall error message.
 
 
-## [v1.0.2] - 2018-03-12
+## [Bridge 1.0.2] - 2018-03-12
 * All from silent updates plus following.
 
 ### Added
@@ -894,7 +1285,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
 
 
-## [v1.0.1-4 (linux only)] Silent deploy - 2018-02-28
+## [Bridge 1.0.1-4 (linux only)] Silent deploy - 2018-02-28
 
 ### Changed
 * More similar look of window title bar to Windows 10 style.
@@ -918,14 +1309,14 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
 
 
-## [v1.0.1] Silent deploy - 2017-12-30
+## [Bridge 1.0.1] Silent deploy - 2017-12-30
 
 ### Changed
 * Fixed bug with parsing address list (CC became BCC).
 
 
 
-## [v1.0.1] - 2017-12-20
+## [Bridge 1.0.1] - 2017-12-20
 
 ### Added
 * When current log file is more than 10MB open new one, checked every 15min.
@@ -957,7 +1348,7 @@ Changelog [format](http://keepachangelog.com/en/1.0.0/)
 
 
 
-## [v1.0.0] - 2017-12-06
+## [Bridge 1.0.0] - 2017-12-06
 
 ### Added
 * Encoding support of message body, title items, attachment name, for all standard charsets.

Makefile

@@ -7,83 +7,129 @@ TARGET_CMD?=Desktop-Bridge
 TARGET_OS?=${GOOS}
 
 ## Build
-.PHONY: build build-ie build-nogui build-ie-nogui check-has-go
+.PHONY: build build-ie build-nogui build-ie-nogui build-launcher build-launcher-ie  versioner hasher
 
 # Keep version hardcoded so app build works also without Git repository.
-BRIDGE_APP_VERSION?=1.4.0-git
-IE_APP_VERSION?=1.1.0-git
+BRIDGE_APP_VERSION?=1.8.0+git
+IE_APP_VERSION?=1.3.3+git
 APP_VERSION:=${BRIDGE_APP_VERSION}
 SRC_ICO:=logo.ico
 SRC_ICNS:=Bridge.icns
 SRC_SVG:=logo.svg
 TGT_ICNS:=Bridge.icns
+EXE_NAME:=proton-bridge
+CONFIGNAME:=bridge
+WINDRES_DEFINE:=BUILD_BRIDGE
 ifeq "${TARGET_CMD}" "Import-Export"
     APP_VERSION:=${IE_APP_VERSION}
     SRC_ICO:=ie.ico
     SRC_ICNS:=ie.icns
     SRC_SVG:=ie.svg
     TGT_ICNS:=ImportExport.icns
+    EXE_NAME:=proton-ie
+    CONFIGNAME:=importExport
+	WINDRES_DEFINE:=BUILD_IE
 endif
 REVISION:=$(shell git rev-parse --short=10 HEAD)
 BUILD_TIME:=$(shell date +%FT%T%z)
 
-BUILD_TAGS?=pmapi_prod
 BUILD_FLAGS:=-tags='${BUILD_TAGS}'
-BUILD_FLAGS_NOGUI:=-tags='${BUILD_TAGS} nogui'
-GO_LDFLAGS:=$(addprefix -X github.com/ProtonMail/proton-bridge/pkg/constants.,Version=${APP_VERSION} Revision=${REVISION} BuildTime=${BUILD_TIME})
+BUILD_FLAGS_LAUNCHER:=${BUILD_FLAGS}
+BUILD_FLAGS_GUI:=-tags='${BUILD_TAGS} build_qt'
+GO_LDFLAGS:=$(addprefix -X github.com/ProtonMail/proton-bridge/internal/constants.,Version=${APP_VERSION} Revision=${REVISION} BuildTime=${BUILD_TIME})
 ifneq "${BUILD_LDFLAGS}" ""
-    GO_LDFLAGS+= ${BUILD_LDFLAGS}
+    GO_LDFLAGS+=${BUILD_LDFLAGS}
 endif
-GO_LDFLAGS:=-ldflags '${GO_LDFLAGS}'
-BUILD_FLAGS+= ${GO_LDFLAGS}
-BUILD_FLAGS_NOGUI+= ${GO_LDFLAGS}
+GO_LDFLAGS_LAUNCHER:=${GO_LDFLAGS}
+GO_LDFLAGS_LAUNCHER+=$(addprefix -X main.,ConfigName=${CONFIGNAME} ExeName=proton-${APP})
+ifeq "${TARGET_OS}" "windows"
+    GO_LDFLAGS_LAUNCHER+=-H=windowsgui
+endif
+
+BUILD_FLAGS+=-ldflags '${GO_LDFLAGS}'
+BUILD_FLAGS_GUI+=-ldflags '${GO_LDFLAGS}'
+BUILD_FLAGS_LAUNCHER+=-ldflags '${GO_LDFLAGS_LAUNCHER}'
 
 DEPLOY_DIR:=cmd/${TARGET_CMD}/deploy
 ICO_FILES:=
-EXE:=$(shell basename ${CURDIR})
-
+DIRNAME:=$(shell basename ${CURDIR})
+EXE:=${EXE_NAME}
+EXE_QT:=${DIRNAME}
 ifeq "${TARGET_OS}" "windows"
     EXE:=${EXE}.exe
-    ICO_FILES:=${SRC_ICO} icon.rc icon_windows.syso
+    EXE_QT:=${EXE_QT}.exe
+    RESOURCE_FILE:=resource.syso
 endif
 ifeq "${TARGET_OS}" "darwin"
     DARWINAPP_CONTENTS:=${DEPLOY_DIR}/darwin/${EXE}.app/Contents
-    EXE:=${EXE}.app/Contents/MacOS/${EXE}
+    EXE:=${EXE}.app
+    EXE_QT:=${EXE_QT}.app
+    EXE_BINARY_DARWIN:=/Contents/MacOS/${EXE_NAME}
 endif
 EXE_TARGET:=${DEPLOY_DIR}/${TARGET_OS}/${EXE}
+EXE_QT_TARGET:=${DEPLOY_DIR}/${TARGET_OS}/${EXE_QT}
 
 TGZ_TARGET:=bridge_${TARGET_OS}_${REVISION}.tgz
 ifeq "${TARGET_CMD}" "Import-Export"
     TGZ_TARGET:=ie_${TARGET_OS}_${REVISION}.tgz
 endif
 
+ifdef QT_API
+    VENDOR_TARGET:=prepare-vendor update-qt-docs
+else
+    VENDOR_TARGET=update-vendor
+endif
 
 build: ${TGZ_TARGET}
+
 build-ie:
 	TARGET_CMD=Import-Export $(MAKE) build
 
-build-nogui:
-	go build ${BUILD_FLAGS_NOGUI} -o ${TARGET_CMD} cmd/${TARGET_CMD}/main.go
+build-nogui: gofiles
+	go build ${BUILD_FLAGS} -o ${EXE_NAME} cmd/${TARGET_CMD}/main.go
 
 build-ie-nogui:
 	TARGET_CMD=Import-Export $(MAKE) build-nogui
 
+ifeq "${GOOS}" "windows"
+  	PRERESOURCECMD:=cp ./resource.syso ./cmd/launcher/resource.syso
+	POSTRESOURCECMD:=rm -f ./cmd/launcher/resource.syso
+endif
+build-launcher: ${RESOURCE_FILE}
+	${PRERESOURCECMD}
+	go build ${BUILD_FLAGS_LAUNCHER} -o launcher-${EXE} ./cmd/launcher/
+	${POSTRESOURCECMD}
+
+build-launcher-ie:
+	TARGET_CMD=Import-Export $(MAKE) build-launcher
+
+versioner:
+	go build ${BUILD_FLAGS} -o versioner utils/versioner/main.go
+
+hasher:
+	go build -o hasher utils/hasher/main.go
+
 ${TGZ_TARGET}: ${DEPLOY_DIR}/${TARGET_OS}
 	rm -f $@
-	cd ${DEPLOY_DIR} && tar czf ../../../$@ ${TARGET_OS}
+	cd ${DEPLOY_DIR}/${TARGET_OS} && tar czf ../../../../$@ .
 
 ${DEPLOY_DIR}/linux: ${EXE_TARGET}
 	cp -pf ./internal/frontend/share/icons/${SRC_SVG} ${DEPLOY_DIR}/linux/logo.svg
 	cp -pf ./LICENSE ${DEPLOY_DIR}/linux/
 	cp -pf ./Changelog.md ${DEPLOY_DIR}/linux/
+	cp -pf ./dist/${EXE_NAME}.desktop ${DEPLOY_DIR}/linux/
 
 ${DEPLOY_DIR}/darwin: ${EXE_TARGET}
+	if [ "${DIRNAME}" != "${EXE_NAME}" ]; then \
+		mv ${EXE_TARGET}/Contents/MacOS/{${DIRNAME},${EXE_NAME}}; \
+		perl -i -pe"s/>${DIRNAME}/>${EXE_NAME}/g" ${EXE_TARGET}/Contents/Info.plist; \
+	fi
 	cp ./internal/frontend/share/icons/${SRC_ICNS} ${DARWINAPP_CONTENTS}/Resources/${TGT_ICNS}
 	cp LICENSE ${DARWINAPP_CONTENTS}/Resources/
 	rm -rf "${DARWINAPP_CONTENTS}/Frameworks/QtWebEngine.framework"
 	rm -rf "${DARWINAPP_CONTENTS}/Frameworks/QtWebView.framework"
 	rm -rf "${DARWINAPP_CONTENTS}/Frameworks/QtWebEngineCore.framework"
-	./utils/remove_non_relative_links_darwin.sh "${EXE_TARGET}"
+	./utils/remove_non_relative_links_darwin.sh "${EXE_TARGET}${EXE_BINARY_DARWIN}"
 
 ${DEPLOY_DIR}/windows: ${EXE_TARGET}
 	cp ./internal/frontend/share/icons/${SRC_ICO} ${DEPLOY_DIR}/windows/logo.ico
@@ -96,29 +142,30 @@ ifneq "${GOOS}" "${TARGET_OS}"
   endif
 endif
 
-${EXE_TARGET}: check-has-go gofiles ${ICO_FILES} update-vendor
+${EXE_TARGET}: check-has-go gofiles ${RESOURCE_FILE} ${VENDOR_TARGET}
 	rm -rf deploy ${TARGET_OS} ${DEPLOY_DIR}
 	cp cmd/${TARGET_CMD}/main.go .
-	qtdeploy ${BUILD_FLAGS} ${QT_BUILD_TARGET}
+	qtdeploy ${BUILD_FLAGS_GUI} ${QT_BUILD_TARGET}
 	mv deploy cmd/${TARGET_CMD}
+	if [ "${EXE_QT_TARGET}" != "${EXE_TARGET}" ]; then mv ${EXE_QT_TARGET} ${EXE_TARGET}; fi
 	rm -rf ${TARGET_OS} main.go
 
-logo.ico ie.ico: ./internal/frontend/share/icons/${SRC_ICO}
-	cp $^ $@
-icon.rc: ./internal/frontend/share/icon.rc
-	cp $^ .
-icon_windows.syso: icon.rc logo.ico
-	windres --target=pe-x86-64 -o $@ $<
 
+WINDRES_YEAR:=$(shell date +%Y)
+APP_VERSION_COMMA:=$(shell echo "${APP_VERSION}" | sed -e 's/[^0-9,.]*//g' -e 's/\./,/g')
+resource.syso: ./internal/frontend/share/info.rc ./internal/frontend/share/icons/${SRC_ICO} .FORCE
+	rm -f ./*.syso
+	windres --target=pe-x86-64 -I ./internal/frontend/share/icons/ -D ${WINDRES_DEFINE} -D ICO_FILE=${SRC_ICO} -D EXE_NAME="${EXE_NAME}" -D FILE_VERSION="${APP_VERSION}" -D ORIGINAL_FILE_NAME="${EXE}" -D PRODUCT_VERSION="${APP_VERSION}" -D FILE_VERSION_COMMA=${APP_VERSION_COMMA} -D YEAR=${WINDRES_YEAR} -o $@ $<
 
 ## Rules for therecipe/qt
-.PHONY: prepare-vendor update-vendor
+.PHONY: prepare-vendor update-vendor update-qt-docs
 THERECIPE_ENV:=github.com/therecipe/env_${TARGET_OS}_amd64_513
 
 # vendor folder will be deleted by gomod hence we cache the big repo
 # therecipe/env in order to download it only once
 vendor-cache/${THERECIPE_ENV}:
 	git clone https://${THERECIPE_ENV}.git vendor-cache/${THERECIPE_ENV}
+	if [ "${TARGET_OS}" == "darwin" ]; then cp -f "./utils/QTBUG-88600/libqcocoa.dylib" "./vendor-cache/${THERECIPE_ENV}/5.13.0/clang_64/plugins/platforms/"; fi;
 
 # The command used to make symlinks is different on windows.
 # So if the GOOS is windows and we aren't crossbuilding (in which case the host os would still be *nix)
@@ -137,10 +184,12 @@ prepare-vendor:
 update-vendor: vendor-cache/${THERECIPE_ENV} prepare-vendor
 	${LINKCMD}
 
+update-qt-docs:
+	go get github.com/therecipe/qt/internal/binding/files/docs/$(QT_API)
 
 ## Dev dependencies
-.PHONY: install-devel-tools install-linter install-go-mod-outdated
-LINTVER:="v1.29.0"
+.PHONY: install-devel-tools install-linter install-go-mod-outdated install-git-hooks
+LINTVER:="v1.39.0"
 LINTSRC:="https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh"
 
 install-dev-dependencies: install-devel-tools install-linter install-go-mod-outdated
@@ -156,9 +205,12 @@ install-linter: check-has-go
 install-go-mod-outdated:
 	which go-mod-outdated || go get -u github.com/psampaz/go-mod-outdated
 
+install-git-hooks:
+	cp utils/githooks/* .git/hooks/
+	chmod +x .git/hooks/*
 
 ## Checks, mocks and docs
-.PHONY: check-has-go add-license change-copyright-year test bench coverage mocks lint-license lint-golang lint updates doc
+.PHONY: check-has-go add-license change-copyright-year test bench coverage mocks lint-license lint-golang lint updates doc release-notes
 check-has-go:
 	@which go || (echo "Install Go-lang!" && exit 1)
 
@@ -173,18 +225,24 @@ test: gofiles
 	go test -coverprofile=/tmp/coverage.out -run=${TESTRUN} \
 		./internal/api/... \
 		./internal/bridge/... \
+		./internal/config/... \
+		./internal/constants/... \
+		./internal/cookies/... \
+		./internal/crash/... \
 		./internal/events/... \
 		./internal/frontend/autoconfig/... \
 		./internal/frontend/cli/... \
 		./internal/imap/... \
-		./internal/metrics/... \
 		./internal/importexport/... \
-		./internal/preferences/... \
+		./internal/locations/... \
+		./internal/logging/... \
+		./internal/metrics/... \
 		./internal/smtp/... \
 		./internal/store/... \
 		./internal/transfer/... \
-		./internal/updates/... \
+		./internal/updater/... \
 		./internal/users/... \
+		./internal/versioner/... \
 		./pkg/...
 
 bench:
@@ -195,20 +253,29 @@ bench:
 coverage: test
 	go tool cover -html=/tmp/coverage.out -o=coverage.html
 
-mocks:
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/users Configer,PanicHandler,ClientManager,CredentialsStorer,StoreMaker > internal/users/mocks/mocks.go
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/transfer PanicHandler,ClientManager > internal/transfer/mocks/mocks.go
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/store PanicHandler,ClientManager,BridgeUser > internal/store/mocks/mocks.go
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/listener Listener > internal/store/mocks/utils_mocks.go
-	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/pmapi Client > pkg/pmapi/mocks/mocks.go
+integration-test-bridge:
+	${MAKE} -C test test-bridge
 
-lint: lint-golang lint-license
+mocks:
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/users Locator,PanicHandler,CredentialsStorer,StoreMaker > internal/users/mocks/mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/listener Listener > internal/users/mocks/listener_mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/transfer PanicHandler,IMAPClientProvider > internal/transfer/mocks/mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/internal/store PanicHandler,BridgeUser,ChangeNotifier > internal/store/mocks/mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/listener Listener > internal/store/mocks/utils_mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/pmapi Client,Manager > pkg/pmapi/mocks/mocks.go
+	mockgen --package mocks github.com/ProtonMail/proton-bridge/pkg/message Fetcher > pkg/message/mocks/mocks.go
+
+lint: gofiles lint-golang lint-license lint-changelog
 
 lint-license:
 	./utils/missing_license.sh check
 
+lint-changelog:
+	./utils/changelog_linter.sh Changelog.md
+
 lint-golang:
 	which golangci-lint || $(MAKE) install-linter
+	$(info linting with GOMAXPROCS=${GOMAXPROCS})
 	golangci-lint run ./...
 
 updates: install-go-mod-outdated
@@ -218,25 +285,29 @@ updates: install-go-mod-outdated
 doc:
 	godoc -http=:6060
 
+release-notes: release-notes/bridge_stable.html release-notes/bridge_early.html release-notes/ie_stable.html release-notes/ie_early.html
+
+release-notes/%.html: release-notes/%.md
+	./utils/release_notes.sh $^
+
 .PHONY: gofiles
 # Following files are for the whole app so it makes sense to have them in bridge package.
 # (Options like cmd or internal were considered and bridge package is the best place for them.)
-gofiles: ./internal/bridge/credits.go ./internal/bridge/release_notes.go ./internal/importexport/credits.go ./internal/importexport/release_notes.go
+gofiles: ./internal/bridge/credits.go ./internal/importexport/credits.go
 ./internal/bridge/credits.go: ./utils/credits.sh go.mod
 	cd ./utils/ && ./credits.sh bridge
-./internal/bridge/release_notes.go: ./utils/release-notes.sh ./release-notes/notes-bridge.txt ./release-notes/bugs-bridge.txt
-	cd ./utils/ && ./release-notes.sh bridge
 ./internal/importexport/credits.go: ./utils/credits.sh go.mod
 	cd ./utils/ && ./credits.sh importexport
-./internal/importexport/release_notes.go: ./utils/release-notes.sh ./release-notes/notes-importexport.txt ./release-notes/bugs-importexport.txt
-	cd ./utils/ && ./release-notes.sh importexport
 
 
 ## Run and debug
 .PHONY: run run-qt run-qt-cli run-nogui run-nogui-cli run-debug run-qml-preview run-ie-qml-preview run-ie run-ie-qt run-ie-qt-cli run-ie-nogui run-ie-nogui-cli clean-vendor clean-frontend-qt clean-frontend-qt-ie clean-frontend-qt-common clean
 
-VERBOSITY?=debug-client
-RUN_FLAGS:=-m -l=${VERBOSITY}
+LOG?=debug
+LOG_IMAP?=client # client/server/all, or empty to turn it off
+LOG_SMTP?=--log-smtp # empty to turn it off
+RUN_FLAGS?=-m -l=${LOG} --log-imap=${LOG_IMAP} ${LOG_SMTP}
+RUN_FLAGS_IE?=-m -l=${LOG}
 
 run: run-nogui-cli
 
@@ -246,12 +317,12 @@ run-qt-cli: ${EXE_TARGET}
 	PROTONMAIL_ENV=dev ./$< ${RUN_FLAGS} -c
 
 run-nogui: clean-vendor gofiles
-	PROTONMAIL_ENV=dev go run ${BUILD_FLAGS_NOGUI} cmd/${TARGET_CMD}/main.go ${RUN_FLAGS} | tee last.log
+	PROTONMAIL_ENV=dev go run ${BUILD_FLAGS} cmd/${TARGET_CMD}/main.go ${RUN_FLAGS} | tee last.log
 run-nogui-cli: clean-vendor gofiles
-	PROTONMAIL_ENV=dev go run ${BUILD_FLAGS_NOGUI} cmd/${TARGET_CMD}/main.go ${RUN_FLAGS} -c
+	PROTONMAIL_ENV=dev go run ${BUILD_FLAGS} cmd/${TARGET_CMD}/main.go ${RUN_FLAGS} -c
 
 run-debug:
-	PROTONMAIL_ENV=dev dlv debug --build-flags "${BUILD_FLAGS_NOGUI}" cmd/${TARGET_CMD}/main.go -- ${RUN_FLAGS}
+	PROTONMAIL_ENV=dev dlv debug --build-flags "${BUILD_FLAGS}" cmd/${TARGET_CMD}/main.go -- ${RUN_FLAGS}
 
 run-qml-preview:
 	$(MAKE) -C internal/frontend/qt -f Makefile.local qmlpreview
@@ -259,12 +330,11 @@ run-ie-qml-preview:
 	$(MAKE) -C internal/frontend/qt-ie -f Makefile.local qmlpreview
 
 run-ie:
-	TARGET_CMD=Import-Export $(MAKE) run
+	TARGET_CMD=Import-Export RUN_FLAGS="${RUN_FLAGS_IE}" $(MAKE) run
 run-ie-qt:
-	TARGET_CMD=Import-Export $(MAKE) run-qt
+	TARGET_CMD=Import-Export RUN_FLAGS="${RUN_FLAGS_IE}" $(MAKE) run-qt
 run-ie-nogui:
-	TARGET_CMD=Import-Export $(MAKE) run-nogui
-
+	TARGET_CMD=Import-Export RUN_FLAGS="${RUN_FLAGS_IE}" $(MAKE) run-nogui
 
 clean-frontend-qt:
 	$(MAKE) -C internal/frontend/qt -f Makefile.local clean
@@ -281,4 +351,13 @@ clean: clean-vendor
 	rm -rf cmd/Desktop-Bridge/deploy
 	rm -rf cmd/Import-Export/deploy
 	rm -f build last.log mem.pprof main.go
-	rm -rf logo.ico icon.rc icon_windows.syso internal/frontend/qt/icon_windows.syso
+	rm -f resource.syso
+	rm -f release-notes/bridge.html
+	rm -f release-notes/import-export.html
+
+.PHONY: generate
+generate:
+	go generate ./...
+	$(MAKE) add-license
+
+.FORCE:

README.md

@@ -1,9 +1,9 @@
 # ProtonMail Bridge and Import Export app
 Copyright (c) 2020 Proton Technologies AG
 
-This repository holds the ProtonMail Bridge application.
+This repository holds the ProtonMail Bridge and the ProtonMail Import-Export applications.
 For a detailed build information see [BUILDS](./BUILDS.md).
-For licensing information see [COPYING](./COPYING.md).
+The license can be found in [LICENSE](./LICENSE) file, for more licensing information see [COPYING_NOTES](./COPYING_NOTES.md).
 For contribution policy see [CONTRIBUTING](./CONTRIBUTING.md).
 
 
@@ -35,6 +35,20 @@ configure transfer rules (match source and target mailboxes, set time
 range limits and so on) and hit start. Once the transfer is complete,
 check the results.
 
+More details [on the public website](https://protonmail.com/import-export).
+
+## Launchers
+Launchers are binaries used to run the ProtonMail Bridge or Import-Export apps.
+
+Official distributions of the ProtonMail Bridge and Import-Export apps contain
+both a launcher and the app itself. The launcher is installed in a protected
+area of the system (i.e. an area accessible only with admin privileges) and is
+used to run the app. The launcher ensures that nobody tampered with the app's
+files by verifying their signature using a hardcoded public key. App files are
+placed in regular userspace and are signed by Proton's private key. This
+feature enables the app to securely update itself automatically without asking
+the user for a password.
+
 ## Keychain
 You need to have a keychain in order to run the ProtonMail Bridge. On Mac or
 Windows, Bridge uses native credential managers. On Linux, use
@@ -70,9 +84,9 @@ The database stores metadata necessary for presenting messages and mailboxes to
 
 ### Preferences
 User preferences are stored in json at the following location:
-- Linux: `~/.cache/protonmail/bridge/<cacheVersion>/prefs.json` (unless `XDG_CACHE_HOME` is set, in which case that is used as your `~`)
-- macOS: `~/Library/Caches/protonmail/bridge/<cacheVersion>/prefs.json`
-- Windows: `%LOCALAPPDATA%\protonmail\bridge\<cacheVersion>\prefs.json`
+- Linux: `~/.config/protonmail/bridge/prefs.json`
+- macOS: `~/Library/ApplicationSupport/protonmail/bridge/prefs.json`
+- Windows: `%APPDATA%\protonmail\bridge\prefs.json`
 
 ### IMAP Cache
 The currently subscribed mailboxes are held in a json file:

cmd/Desktop-Bridge/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -35,261 +35,40 @@ package main
 */
 
 import (
-	"io/ioutil"
 	"os"
-	"runtime/pprof"
 
-	"github.com/ProtonMail/proton-bridge/internal/api"
-	"github.com/ProtonMail/proton-bridge/internal/bridge"
-	"github.com/ProtonMail/proton-bridge/internal/cmd"
-	"github.com/ProtonMail/proton-bridge/internal/cookies"
-	"github.com/ProtonMail/proton-bridge/internal/events"
-	"github.com/ProtonMail/proton-bridge/internal/frontend"
-	"github.com/ProtonMail/proton-bridge/internal/imap"
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
-	"github.com/ProtonMail/proton-bridge/internal/smtp"
-	"github.com/ProtonMail/proton-bridge/internal/updates"
-	"github.com/ProtonMail/proton-bridge/internal/users/credentials"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
-	"github.com/ProtonMail/proton-bridge/pkg/constants"
-	"github.com/ProtonMail/proton-bridge/pkg/listener"
-	"github.com/ProtonMail/proton-bridge/pkg/pmapi"
-	"github.com/allan-simon/go-singleinstance"
+	"github.com/ProtonMail/proton-bridge/internal/app/base"
+	"github.com/ProtonMail/proton-bridge/internal/app/bridge"
 	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
 )
 
 const (
-	// cacheVersion is used for cache files such as lock, events, preferences, user_info, db files.
-	// Different number will drop old files and create new ones.
-	cacheVersion = "c11"
-
-	appName = "bridge"
-)
-
-var (
-	log = logrus.WithField("pkg", "main") //nolint[gochecknoglobals]
+	appName       = "ProtonMail Bridge"
+	appUsage      = "ProtonMail IMAP and SMTP Bridge"
+	configName    = "bridge"
+	updateURLName = "bridge"
+	keychainName  = "bridge"
+	cacheVersion  = "c11"
 )
 
 func main() {
-	cmd.Main(
-		"ProtonMail Bridge",
-		"ProtonMail IMAP and SMTP Bridge",
-		[]cli.Flag{
-			cli.BoolFlag{
-				Name:  "no-window",
-				Usage: "Don't show window after start"},
-			cli.BoolFlag{
-				Name:  "noninteractive",
-				Usage: "Start Bridge entirely noninteractively"},
-		},
-		run,
+	base, err := base.New(
+		appName,
+		appUsage,
+		configName,
+		updateURLName,
+		keychainName,
+		cacheVersion,
 	)
-}
-
-// run initializes and starts everything in a precise order.
-//
-// IMPORTANT: ***Read the comments before CHANGING the order ***
-func run(context *cli.Context) (contextError error) { // nolint[funlen]
-	// We need to have config instance to setup a logs, panic handler, etc ...
-	cfg := config.New(appName, constants.Version, constants.Revision, cacheVersion)
-
-	// We want to know about any problem. Our PanicHandler calls sentry which is
-	// not dependent on anything else. If that fails, it tries to create crash
-	// report which will not be possible if no folder can be created. That's the
-	// only problem we will not be notified about in any way.
-	panicHandler := &cmd.PanicHandler{
-		AppName: "ProtonMail Bridge",
-		Config:  cfg,
-		Err:     &contextError,
-	}
-	defer panicHandler.HandlePanic()
-
-	// First we need config and create necessary folder; it's dependency for everything.
-	if err := cfg.CreateDirs(); err != nil {
-		log.Fatal("Cannot create necessary folders: ", err)
-	}
-
-	// Setup of logs should be as soon as possible to ensure we record every wanted report in the log.
-	logLevel := context.GlobalString("log-level")
-	debugClient, debugServer := config.SetupLog(cfg, logLevel)
-
-	// Doesn't make sense to continue when Bridge was invoked with wrong arguments.
-	// We should tell that to the user before we do anything else.
-	if context.Args().First() != "" {
-		_ = cli.ShowAppHelp(context)
-		return cli.NewExitError("Unknown argument", 4)
-	}
-
-	// It's safe to get version JSON file even when other instance is running.
-	// (thus we put it before check of presence of other Bridge instance).
-	updates := updates.NewBridge(cfg.GetUpdateDir())
-
-	if dir := context.GlobalString("version-json"); dir != "" {
-		cmd.GenerateVersionFiles(updates, dir)
-		return nil
-	}
-
-	// Should be called after logs are configured but before preferences are created.
-	migratePreferencesFromC10(cfg)
-
-	// ClearOldData before starting new bridge to do a proper setup.
-	//
-	// IMPORTANT: If you the change position of this you will need to wait
-	// until force-update to be applied on all currently used bridge
-	// versions
-	if err := cfg.ClearOldData(); err != nil {
-		log.Error("Cannot clear old data: ", err)
-	}
-
-	// GetTLSConfig is needed for IMAP, SMTL and local bridge API (to check second instance).
-	//
-	// This should be called after ClearOldData, in order to re-create the
-	// certificates if clean data will remove them (accidentally or on purpose).
-	tls, err := config.GetTLSConfig(cfg)
-	if err != nil {
-		log.WithError(err).Fatal("Cannot get TLS certificate")
-	}
-
-	pref := preferences.New(cfg)
-
-	// Now we can try to proceed with starting the bridge. First we need to ensure
-	// this is the only instance. If not, we will end and focus the existing one.
-	lock, err := singleinstance.CreateLockFile(cfg.GetLockPath())
-	if err != nil {
-		log.Warn("Bridge is already running")
-		if err := api.CheckOtherInstanceAndFocus(pref.GetInt(preferences.APIPortKey), tls); err != nil {
-			cmd.DisableRestart()
-			log.Error("Second instance: ", err)
-		}
-		return cli.NewExitError("Bridge is already running.", 3)
-	}
-	defer lock.Close() //nolint[errcheck]
-
-	// In case user wants to do CPU or memory profiles...
-	if doCPUProfile := context.GlobalBool("cpu-prof"); doCPUProfile {
-		cmd.StartCPUProfile()
-		defer pprof.StopCPUProfile()
-	}
-
-	if doMemoryProfile := context.GlobalBool("mem-prof"); doMemoryProfile {
-		defer cmd.MakeMemoryProfile()
-	}
-
-	// Now we initialize all Bridge parts.
-	log.Debug("Initializing bridge...")
-	eventListener := listener.New()
-	events.SetupEvents(eventListener)
-
-	credentialsStore, credentialsError := credentials.NewStore(appName)
-	if credentialsError != nil {
-		log.Error("Could not get credentials store: ", credentialsError)
-	}
-
-	cm := pmapi.NewClientManager(cfg.GetAPIConfig())
-
-	// Different build types have different roundtrippers (e.g. we want to enable
-	// TLS fingerprint checks in production builds). GetRoundTripper has a different
-	// implementation depending on whether build flag pmapi_prod is used or not.
-	cm.SetRoundTripper(cfg.GetRoundTripper(cm, eventListener))
-
-	// Cookies must be persisted across restarts.
-	jar, err := cookies.NewCookieJar(pref)
-	if err != nil {
-		logrus.WithError(err).Warn("Could not create cookie jar")
-	} else {
-		cm.SetCookieJar(jar)
-	}
-
-	bridgeInstance := bridge.New(cfg, pref, panicHandler, eventListener, cm, credentialsStore)
-	imapBackend := imap.NewIMAPBackend(panicHandler, eventListener, cfg, bridgeInstance)
-	smtpBackend := smtp.NewSMTPBackend(panicHandler, eventListener, pref, bridgeInstance)
-
-	go func() {
-		defer panicHandler.HandlePanic()
-		apiServer := api.NewAPIServer(pref, tls, cfg.GetTLSCertPath(), cfg.GetTLSKeyPath(), eventListener)
-		apiServer.ListenAndServe()
-	}()
-
-	go func() {
-		defer panicHandler.HandlePanic()
-		imapPort := pref.GetInt(preferences.IMAPPortKey)
-		imapServer := imap.NewIMAPServer(debugClient, debugServer, imapPort, tls, imapBackend, eventListener)
-		imapServer.ListenAndServe()
-	}()
-
-	go func() {
-		defer panicHandler.HandlePanic()
-		smtpPort := pref.GetInt(preferences.SMTPPortKey)
-		useSSL := pref.GetBool(preferences.SMTPSSLKey)
-		smtpServer := smtp.NewSMTPServer(debugClient || debugServer, smtpPort, useSSL, tls, smtpBackend, eventListener)
-		smtpServer.ListenAndServe()
-	}()
-
-	// Decide about frontend mode before initializing rest of bridge.
-	var frontendMode string
-
-	switch {
-	case context.GlobalBool("cli"):
-		frontendMode = "cli"
-	case context.GlobalBool("noninteractive"):
-		frontendMode = "noninteractive"
-	default:
-		frontendMode = "qt"
-	}
-
-	log.WithField("mode", frontendMode).Debug("Determined frontend mode to use")
-
-	// If we are starting bridge in noninteractive mode, simply block instead of starting a frontend.
-	if frontendMode == "noninteractive" {
-		<-(make(chan struct{}))
-		return nil
-	}
-
-	showWindowOnStart := !context.GlobalBool("no-window")
-	frontend := frontend.New(constants.Version, constants.BuildVersion, frontendMode, showWindowOnStart, panicHandler, cfg, pref, eventListener, updates, bridgeInstance, smtpBackend)
-
-	// Last part is to start everything.
-	log.Debug("Starting frontend...")
-	if err := frontend.Loop(credentialsError); err != nil {
-		log.Error("Frontend failed with error: ", err)
-		return cli.NewExitError("Frontend error", 2)
-	}
-
-	if frontend.IsAppRestarting() {
-		cmd.RestartApp()
-	}
-
-	return nil
-}
-
-// migratePreferencesFromC10 will copy preferences from c10 folder to c11.
-// It will happen only when c10/prefs.json exists and c11/prefs.json not.
-// No configuration changed between c10 and c11 versions.
-func migratePreferencesFromC10(cfg *config.Config) {
-	pref10Path := config.New(appName, constants.Version, constants.Revision, "c10").GetPreferencesPath()
-	if _, err := os.Stat(pref10Path); os.IsNotExist(err) {
-		log.WithField("path", pref10Path).Trace("Old preferences does not exist, migration skipped")
-		return
-	}
-
-	pref11Path := cfg.GetPreferencesPath()
-	if _, err := os.Stat(pref11Path); err == nil {
-		log.WithField("path", pref11Path).Trace("New preferences already exists, migration skipped")
-		return
-	}
-
-	data, err := ioutil.ReadFile(pref10Path) //nolint[gosec]
-	if err != nil {
-		log.WithError(err).Error("Problem to load old preferences")
-		return
-	}
-
-	err = ioutil.WriteFile(pref11Path, data, 0600)
-	if err != nil {
-		log.WithError(err).Error("Problem to migrate preferences")
-		return
-	}
-
-	log.Info("Preferences migrated")
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to create app base")
+	}
+	// Other instance already running.
+	if base == nil {
+		return
+	}
+
+	if err := bridge.New(base).Run(os.Args); err != nil {
+		logrus.WithError(err).Fatal("Bridge exited with error")
+	}
 }

cmd/Import-Export/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -18,160 +18,40 @@
 package main
 
 import (
-	"runtime/pprof"
+	"os"
 
-	"github.com/ProtonMail/proton-bridge/internal/cmd"
-	"github.com/ProtonMail/proton-bridge/internal/cookies"
-	"github.com/ProtonMail/proton-bridge/internal/events"
-	"github.com/ProtonMail/proton-bridge/internal/frontend"
-	"github.com/ProtonMail/proton-bridge/internal/importexport"
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
-	"github.com/ProtonMail/proton-bridge/internal/updates"
-	"github.com/ProtonMail/proton-bridge/internal/users/credentials"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
-	"github.com/ProtonMail/proton-bridge/pkg/constants"
-	"github.com/ProtonMail/proton-bridge/pkg/listener"
-	"github.com/ProtonMail/proton-bridge/pkg/pmapi"
-	"github.com/allan-simon/go-singleinstance"
+	"github.com/ProtonMail/proton-bridge/internal/app/base"
+	"github.com/ProtonMail/proton-bridge/internal/app/ie"
 	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
 )
 
 const (
-	// cacheVersion is used for cache files such as lock, or preferences.
-	// Different number will drop old files and create new ones.
-	cacheVersion = "c11"
-
-	appName     = "importExport"
-	appNameDash = "import-export-app"
-)
-
-var (
-	log = logrus.WithField("pkg", "main") //nolint[gochecknoglobals]
+	appName       = "ProtonMail Import-Export app"
+	appUsage      = "Import and export messages to/from your ProtonMail account"
+	configName    = "importExport"
+	updateURLName = "ie"
+	keychainName  = "import-export-app"
+	cacheVersion  = "c11"
 )
 
 func main() {
-	cmd.Main(
-		"ProtonMail Import-Export",
-		"ProtonMail Import-Export app",
-		nil,
-		run,
+	base, err := base.New(
+		appName,
+		appUsage,
+		configName,
+		updateURLName,
+		keychainName,
+		cacheVersion,
 	)
-}
-
-// run initializes and starts everything in a precise order.
-//
-// IMPORTANT: ***Read the comments before CHANGING the order ***
-func run(context *cli.Context) (contextError error) { // nolint[funlen]
-	// We need to have config instance to setup a logs, panic handler, etc ...
-	cfg := config.New(appName, constants.Version, constants.Revision, cacheVersion)
-
-	// We want to know about any problem. Our PanicHandler calls sentry which is
-	// not dependent on anything else. If that fails, it tries to create crash
-	// report which will not be possible if no folder can be created. That's the
-	// only problem we will not be notified about in any way.
-	panicHandler := &cmd.PanicHandler{
-		AppName: "ProtonMail Import-Export app",
-		Config:  cfg,
-		Err:     &contextError,
-	}
-	defer panicHandler.HandlePanic()
-
-	// First we need config and create necessary folder; it's dependency for everything.
-	if err := cfg.CreateDirs(); err != nil {
-		log.Fatal("Cannot create necessary folders: ", err)
-	}
-
-	// Setup of logs should be as soon as possible to ensure we record every wanted report in the log.
-	logLevel := context.GlobalString("log-level")
-	_, _ = config.SetupLog(cfg, logLevel)
-
-	// Doesn't make sense to continue when Import-Export was invoked with wrong arguments.
-	// We should tell that to the user before we do anything else.
-	if context.Args().First() != "" {
-		_ = cli.ShowAppHelp(context)
-		return cli.NewExitError("Unknown argument", 4)
-	}
-
-	// It's safe to get version JSON file even when other instance is running.
-	// (thus we put it before check of presence of other Import-Export instance).
-	updates := updates.NewImportExport(cfg.GetUpdateDir())
-
-	if dir := context.GlobalString("version-json"); dir != "" {
-		cmd.GenerateVersionFiles(updates, dir)
-		return nil
-	}
-
-	// Now we can try to proceed with starting the Import-Export. First we need to ensure
-	// this is the only instance. If not, we will end and focus the existing one.
-	lock, err := singleinstance.CreateLockFile(cfg.GetLockPath())
 	if err != nil {
-		log.Warn("Import-Export app is already running")
-		return cli.NewExitError("Import-Export app is already running.", 3)
+		logrus.WithError(err).Fatal("Failed to create app base")
 	}
-	defer lock.Close() //nolint[errcheck]
-
-	// In case user wants to do CPU or memory profiles...
-	if doCPUProfile := context.GlobalBool("cpu-prof"); doCPUProfile {
-		cmd.StartCPUProfile()
-		defer pprof.StopCPUProfile()
+	// Other instance already running.
+	if base == nil {
+		return
 	}
 
-	if doMemoryProfile := context.GlobalBool("mem-prof"); doMemoryProfile {
-		defer cmd.MakeMemoryProfile()
+	if err := ie.New(base).Run(os.Args); err != nil {
+		logrus.WithError(err).Fatal("IE exited with error")
 	}
-
-	// Now we initialize all Import-Export parts.
-	log.Debug("Initializing import-export...")
-	eventListener := listener.New()
-	events.SetupEvents(eventListener)
-
-	credentialsStore, credentialsError := credentials.NewStore(appNameDash)
-	if credentialsError != nil {
-		log.Error("Could not get credentials store: ", credentialsError)
-	}
-
-	cm := pmapi.NewClientManager(cfg.GetAPIConfig())
-
-	// Different build types have different roundtrippers (e.g. we want to enable
-	// TLS fingerprint checks in production builds). GetRoundTripper has a different
-	// implementation depending on whether build flag pmapi_prod is used or not.
-	cm.SetRoundTripper(cfg.GetRoundTripper(cm, eventListener))
-
-	pref := preferences.New(cfg)
-
-	// Cookies must be persisted across restarts.
-	jar, err := cookies.NewCookieJar(pref)
-	if err != nil {
-		logrus.WithError(err).Warn("Could not create cookie jar")
-	} else {
-		cm.SetCookieJar(jar)
-	}
-
-	importexportInstance := importexport.New(cfg, panicHandler, eventListener, cm, credentialsStore)
-
-	// Decide about frontend mode before initializing rest of import-export.
-	var frontendMode string
-	switch {
-	case context.GlobalBool("cli"):
-		frontendMode = "cli"
-	default:
-		frontendMode = "qt"
-	}
-	log.WithField("mode", frontendMode).Debug("Determined frontend mode to use")
-
-	frontend := frontend.NewImportExport(constants.Version, constants.BuildVersion, frontendMode, panicHandler, cfg, eventListener, updates, importexportInstance)
-
-	// Last part is to start everything.
-	log.Debug("Starting frontend...")
-	if err := frontend.Loop(credentialsError); err != nil {
-		log.Error("Frontend failed with error: ", err)
-		return cli.NewExitError("Frontend error", 2)
-	}
-
-	if frontend.IsAppRestarting() {
-		cmd.RestartApp()
-	}
-
-	return nil
 }

cmd/launcher/main.go

@@ -0,0 +1,194 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+
+	"github.com/ProtonMail/gopenpgp/v2/crypto"
+	"github.com/ProtonMail/proton-bridge/internal/config/useragent"
+	"github.com/ProtonMail/proton-bridge/internal/constants"
+	"github.com/ProtonMail/proton-bridge/internal/crash"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/ProtonMail/proton-bridge/internal/logging"
+	"github.com/ProtonMail/proton-bridge/internal/sentry"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
+	"github.com/ProtonMail/proton-bridge/internal/versioner"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+const appName = "ProtonMail Launcher"
+
+var (
+	ConfigName = "" // nolint[gochecknoglobals]
+	ExeName    = "" // nolint[gochecknoglobals]
+)
+
+func main() { // nolint[funlen]
+	reporter := sentry.NewReporter(appName, constants.Version, useragent.New())
+
+	crashHandler := crash.NewHandler(reporter.ReportException)
+	defer crashHandler.HandlePanic()
+
+	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, ConfigName))
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to get locations provider")
+	}
+
+	locations := locations.New(locationsProvider, ConfigName)
+
+	logsPath, err := locations.ProvideLogsPath()
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to get logs path")
+	}
+	crashHandler.AddRecoveryAction(logging.DumpStackTrace(logsPath))
+
+	if err := logging.Init(logsPath); err != nil {
+		logrus.WithError(err).Fatal("Failed to setup logging")
+	}
+
+	logging.SetLevel(os.Getenv("VERBOSITY"))
+
+	updatesPath, err := locations.ProvideUpdatesPath()
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to get updates path")
+	}
+
+	key, err := crypto.NewKeyFromArmored(updater.DefaultPublicKey)
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to create new verification key")
+	}
+
+	kr, err := crypto.NewKeyRing(key)
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to create new verification keyring")
+	}
+
+	versioner := versioner.New(updatesPath)
+
+	exe, err := getPathToExecutable(ExeName, versioner, kr, reporter)
+	if err != nil {
+		if exe, err = getFallbackExecutable(ExeName, versioner); err != nil {
+			logrus.WithError(err).Fatal("Failed to find any launchable executable")
+		}
+	}
+
+	launcher, err := os.Executable()
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to determine path to launcher")
+	}
+
+	cmd := exec.Command(exe, appendLauncherPath(launcher, os.Args[1:])...) // nolint[gosec]
+
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	// On windows, if you use Run(), a terminal stays open; we don't want that.
+	if runtime.GOOS == "windows" {
+		err = cmd.Start()
+	} else {
+		err = cmd.Run()
+	}
+
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to launch")
+	}
+}
+
+func appendLauncherPath(path string, args []string) []string {
+	res := append([]string{}, args...)
+
+	hasFlag := false
+
+	for k, v := range res {
+		if v != "--launcher" {
+			continue
+		}
+
+		hasFlag = true
+
+		if k+1 >= len(res) {
+			continue
+		}
+
+		res[k+1] = path
+	}
+
+	if !hasFlag {
+		res = append(res, "--launcher", path)
+	}
+
+	return res
+}
+
+func getPathToExecutable(
+	name string,
+	versioner *versioner.Versioner,
+	kr *crypto.KeyRing,
+	reporter *sentry.Reporter,
+) (string, error) {
+	versions, err := versioner.ListVersions()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to list available versions")
+	}
+
+	for _, version := range versions {
+		vlog := logrus.WithField("version", version)
+
+		if err := version.VerifyFiles(kr); err != nil {
+			vlog.WithError(err).Error("Files failed verification and will be removed")
+
+			if err := reporter.ReportMessage(fmt.Sprintf("version %v failed verification: %v", version, err)); err != nil {
+				vlog.WithError(err).Error("Failed to report corrupt update files")
+			}
+
+			if err := version.Remove(); err != nil {
+				vlog.WithError(err).Error("Failed to remove files")
+			}
+
+			continue
+		}
+
+		exe, err := version.GetExecutable(name)
+		if err != nil {
+			vlog.WithError(err).Error("Failed to get executable")
+			continue
+		}
+
+		return exe, nil
+	}
+
+	return "", errors.New("no available versions")
+}
+
+func getFallbackExecutable(name string, versioner *versioner.Versioner) (string, error) {
+	logrus.Info("Searching for fallback executable")
+
+	launcher, err := os.Executable()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to determine path to launcher")
+	}
+
+	return versioner.GetExecutableInDirectory(name, filepath.Dir(launcher))
+}

dist/proton-bridge.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Type=Application
+Version=1.1
+Name=ProtonMail Bridge
+GenericName=ProtonMail Bridge for Linux
+Comment=The Bridge is an application that runs on your computer in the background and seamlessly encrypts and decrypts your mail as it enters and leaves your computer.
+Icon=protonmail-bridge
+Exec=protonmail-bridge
+Terminal=false
+Categories=Office;Email;Network
+StartupWMClass=protonmail-bridge

dist/proton-ie.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Type=Application
+Version=1.1
+Name=ProtonMail Import-Export app
+GenericName=ProtonMail Import-Export app for Linux
+Comment=The Import-Export app helps you to migrate your emails from local files or remote IMAP servers to ProtonMail or simply export emails to local folder.
+Icon=protonmail-import-export-app
+Exec=protonmail-import-export-app
+Terminal=false
+Categories=Office;Email;Network
+StartupWMClass=protonmail-import-export-app

go.mod

@@ -6,7 +6,7 @@ go 1.13
 // They are in a separate require block to highlight this.
 require (
 	github.com/docker/docker-credential-helpers v0.6.3
-	github.com/emersion/go-smtp v0.0.0-20180712174835-db5eec195e67
+	github.com/emersion/go-imap v1.0.6
 	github.com/jameskeane/bcrypt v0.0.0-20170924085257-7509ea014998
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 )
@@ -14,69 +14,63 @@ require (
 require (
 	github.com/0xAX/notificator v0.0.0-20191016112426-3962a5ea8da1
 	github.com/Masterminds/semver/v3 v3.1.0
-	github.com/ProtonMail/go-appdir v1.1.0
-	github.com/ProtonMail/go-apple-mobileconfig v0.0.0-20160701194735-7ea9927a11f6
 	github.com/ProtonMail/go-autostart v0.0.0-20181114175602-c5272053443a
 	github.com/ProtonMail/go-imap-id v0.0.0-20190926060100-f94a56b9ecde
+	github.com/ProtonMail/go-rfc5322 v0.5.0
 	github.com/ProtonMail/go-vcard v0.0.0-20180326232728-33aaa0a0c8a5
-	github.com/ProtonMail/gopenpgp/v2 v2.0.1
+	github.com/ProtonMail/gopenpgp/v2 v2.1.3
 	github.com/PuerkitoBio/goquery v1.5.1
 	github.com/abiosoft/ishell v2.0.0+incompatible
 	github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db // indirect
 	github.com/allan-simon/go-singleinstance v0.0.0-20160830203053-79edcfdc2dfc
-	github.com/certifi/gocertifi v0.0.0-20200211180108-c7c1fbc02894 // indirect
 	github.com/chzyer/logex v1.1.10 // indirect
 	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
 	github.com/cucumber/godog v0.8.1
-	github.com/emersion/go-imap v1.0.6-0.20200708083111-011063d6c9df
 	github.com/emersion/go-imap-appendlimit v0.0.0-20190308131241-25671c986a6a
 	github.com/emersion/go-imap-idle v0.0.0-20200601154248-f05f54664cc4
 	github.com/emersion/go-imap-move v0.0.0-20190710073258-6e5a51a5b342
-	github.com/emersion/go-imap-quota v0.0.0-20200423100218-dcfd1b7d2b41
-	github.com/emersion/go-imap-specialuse v0.0.0-20200722111535-598ff00e4075
+	github.com/emersion/go-imap-quota v0.0.0-20210203125329-619074823f3c
 	github.com/emersion/go-imap-unselect v0.0.0-20171113212723-b985794e5f26
-	github.com/emersion/go-mbox v1.0.0
-	github.com/emersion/go-message v0.12.1-0.20200903165315-e1abe21f389a
+	github.com/emersion/go-mbox v1.0.2
+	github.com/emersion/go-message v0.12.1-0.20201221184100-40c3f864532b
 	github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21
-	github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe
+	github.com/emersion/go-smtp v0.14.0
+	github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594
 	github.com/emersion/go-vcard v0.0.0-20190105225839-8856043f13c5 // indirect
 	github.com/fatih/color v1.9.0
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
-	github.com/getsentry/raven-go v0.2.0
-	github.com/go-resty/resty/v2 v2.3.0
+	github.com/getsentry/sentry-go v0.8.0
+	github.com/go-resty/resty/v2 v2.6.0
 	github.com/golang/mock v1.4.4
 	github.com/google/go-cmp v0.5.1
 	github.com/google/uuid v1.1.1
 	github.com/gopherjs/gopherjs v0.0.0-20190430165422-3e4dfb77656c // indirect
 	github.com/hashicorp/go-multierror v1.1.0
 	github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7
-	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0
 	github.com/keybase/go-keychain v0.0.0-20200502122510-cda31fe0c86d
 	github.com/logrusorgru/aurora v2.0.3+incompatible
 	github.com/mattn/go-runewidth v0.0.9 // indirect
-	github.com/miekg/dns v1.1.30
-	github.com/myesui/uuid v1.0.0 // indirect
+	github.com/miekg/dns v1.1.41
 	github.com/nsf/jsondiff v0.0.0-20200515183724-f29ed568f4ce
 	github.com/olekukonko/tablewriter v0.0.4 // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/sirupsen/logrus v1.6.0
+	github.com/sirupsen/logrus v1.7.0
 	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
 	github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
 	github.com/stretchr/testify v1.6.1
 	github.com/therecipe/qt v0.0.0-20200701200531-7f61353ee73e
-	github.com/twinj/uuid v1.0.0 // indirect
-	github.com/urfave/cli v1.22.4
+	github.com/therecipe/qt/internal/binding/files/docs/5.12.0 v0.0.0-20200904063919-c0c124a5770d // indirect
+	github.com/therecipe/qt/internal/binding/files/docs/5.13.0 v0.0.0-20200904063919-c0c124a5770d // indirect
+	github.com/urfave/cli/v2 v2.2.0
+	github.com/vmihailenco/msgpack/v5 v5.1.3
 	go.etcd.io/bbolt v1.3.5
-	golang.org/x/net v0.0.0-20200707034311-ab3426394381
-	golang.org/x/text v0.3.3
-	gopkg.in/stretchr/testify.v1 v1.2.2 // indirect
+	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
+	golang.org/x/text v0.3.5-0.20201125200606-c27b9fd57aec
 )
 
 replace (
 	github.com/docker/docker-credential-helpers => github.com/ProtonMail/docker-credential-helpers v1.1.0
-	github.com/emersion/go-imap => github.com/ProtonMail/go-imap v0.0.0-20200828124548-d04b0dc1f399
-	github.com/emersion/go-mbox => github.com/ProtonMail/mbox v0.0.0-20200918064939-909a18c9af45
-	github.com/emersion/go-smtp => github.com/ProtonMail/go-smtp v0.0.0-20181206232543-8261df20d309
+	github.com/emersion/go-imap => github.com/ProtonMail/go-imap v0.0.0-20201228133358-4db68cea0cac
 	github.com/jameskeane/bcrypt => github.com/ProtonMail/bcrypt v0.0.0-20170924085257-7509ea014998
-	golang.org/x/crypto => github.com/ProtonMail/crypto v0.0.0-20200416114516-1fa7f403fb9c
+	golang.org/x/crypto => github.com/ProtonMail/crypto v0.0.0-20201112115411-41db4ea0dd1c
 )

go.sum

@@ -1,51 +1,61 @@
 github.com/0xAX/notificator v0.0.0-20191016112426-3962a5ea8da1 h1:j9HaafapDbPbGRDku6e/HRs6KBMcKHiWcm1/9Sbxnl4=
 github.com/0xAX/notificator v0.0.0-20191016112426-3962a5ea8da1/go.mod h1:NtXa9WwQsukMHZpjNakTTz0LArxvGYdPA9CjIcUSZ6s=
+github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53/go.mod h1:+3IMCy2vIlbG1XG/0ggNQv0SvxCAIpPM5b1nCz56Xno=
+github.com/CloudyKit/jet/v3 v3.0.0/go.mod h1:HKQPgSJmdK8hdoAbKUUWajkHyHo4RaU5rMdUywE7VMo=
+github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKzY=
 github.com/Masterminds/semver/v3 v3.1.0 h1:Y2lUDsFKVRSYGojLJ1yLxSXdMmMYTYls0rCvoqmMUQk=
 github.com/Masterminds/semver/v3 v3.1.0/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
 github.com/ProtonMail/bcrypt v0.0.0-20170924085257-7509ea014998 h1:YT2uVwQiRQZxCaaahwfcgTq2j3j66w00n/27gb/zubs=
 github.com/ProtonMail/bcrypt v0.0.0-20170924085257-7509ea014998/go.mod h1:HecWFHognK8GfRDGnFQbW/LiV7A3MX3gZVs45vk5h8I=
-github.com/ProtonMail/crypto v0.0.0-20200416114516-1fa7f403fb9c h1:DAvlgde2Stu18slmjwikiMPs/CKPV35wSvmJS34z0FU=
-github.com/ProtonMail/crypto v0.0.0-20200416114516-1fa7f403fb9c/go.mod h1:Pxr7w4gA2ikI4sWyYwEffm+oew1WAJHzG1SiDpQMkrI=
+github.com/ProtonMail/crypto v0.0.0-20201112115411-41db4ea0dd1c h1:iaVbEOnskSGgcH7XQWHG6VPirHDRoYe+Idd0/dl4m8A=
+github.com/ProtonMail/crypto v0.0.0-20201112115411-41db4ea0dd1c/go.mod h1:Pxr7w4gA2ikI4sWyYwEffm+oew1WAJHzG1SiDpQMkrI=
 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/go-appdir v1.1.0 h1:9hdNDlU9kTqRKVNzmoqah8qqrj5QZyLByQdwQNlFWig=
-github.com/ProtonMail/go-appdir v1.1.0/go.mod h1:3d8Y9F5mbEUjrYbcJ3rcDxcWbqbttF+011nVZmdRdzc=
-github.com/ProtonMail/go-apple-mobileconfig v0.0.0-20160701194735-7ea9927a11f6 h1:YsSJ/mvZFYydQm/hRrt8R8UtgETixN2y3LK98f5LT60=
-github.com/ProtonMail/go-apple-mobileconfig v0.0.0-20160701194735-7ea9927a11f6/go.mod h1:EtDfBMIDWmVe4viZCuBTEfe3OIIo0ghbpOaAZVO+hVg=
 github.com/ProtonMail/go-autostart v0.0.0-20181114175602-c5272053443a h1:fXK2KsfnkBV9Nh+9SKzHchYjuE9s0vI20JG1mbtEAcc=
 github.com/ProtonMail/go-autostart v0.0.0-20181114175602-c5272053443a/go.mod h1:oTGdE7/DlWIr23G0IKW3OXK9wZ5Hw1GGiaJFccTvZi4=
-github.com/ProtonMail/go-imap v0.0.0-20200828124548-d04b0dc1f399 h1:wBo/Xgb/Dn2loU47D+PJaOoIZ67i3AqYp51gLn8YE5U=
-github.com/ProtonMail/go-imap v0.0.0-20200828124548-d04b0dc1f399/go.mod h1:yKASt+C3ZiDAiCSssxg9caIckWF/JG7ZQTO7GAmvicU=
+github.com/ProtonMail/go-crypto v0.0.0-20201208171014-cdb7591792e2 h1:pQkjJELHayW59jp7r4G5Dlmnicr5McejDfwsjcwI1SU=
+github.com/ProtonMail/go-crypto v0.0.0-20201208171014-cdb7591792e2/go.mod h1:HTM9X7e9oLwn7RiqLG0UVwVRJenLs3wN+tQ0NPAfwMQ=
+github.com/ProtonMail/go-imap v0.0.0-20201228133358-4db68cea0cac h1:2xU3QncAiS/W3UlWZTkbNKW5WkLzk6Egl1T0xX+sbjs=
+github.com/ProtonMail/go-imap v0.0.0-20201228133358-4db68cea0cac/go.mod h1:yKASt+C3ZiDAiCSssxg9caIckWF/JG7ZQTO7GAmvicU=
 github.com/ProtonMail/go-imap-id v0.0.0-20190926060100-f94a56b9ecde h1:5koQozTDELymYOyFbQ/VSubexAEXzDR8qGM5mO8GRdw=
 github.com/ProtonMail/go-imap-id v0.0.0-20190926060100-f94a56b9ecde/go.mod h1:795VPXcRUIQ9JyMNHP4el582VokQfippgjkQP3Gk0r0=
 github.com/ProtonMail/go-mime v0.0.0-20190923161245-9b5a4261663a h1:W6RrgN/sTxg1msqzFFb+G80MFmpjMw61IU+slm+wln4=
 github.com/ProtonMail/go-mime v0.0.0-20190923161245-9b5a4261663a/go.mod h1:NYt+V3/4rEeDuaev/zw1zCq8uqVEuPHzDPo3OZrlGJ4=
-github.com/ProtonMail/go-smtp v0.0.0-20181206232543-8261df20d309 h1:2pzfKjhBjSnw3BgmfTYRFQr1rFGxhfhUY0KKkg+RYxE=
-github.com/ProtonMail/go-smtp v0.0.0-20181206232543-8261df20d309/go.mod h1:6UoBvDAMA/cTBwS3Y7tGpKnY5RH1F1uYHschT6eqAkI=
+github.com/ProtonMail/go-rfc5322 v0.5.0 h1:LbKWjgfvumYZCr8BgGyTUk3ETGkFLAjQdkuSUpZ5CcE=
+github.com/ProtonMail/go-rfc5322 v0.5.0/go.mod h1:mzZWlMWnQJuYLL7JpzuPF5+FimV2lZ9f0jeq24kJjpU=
 github.com/ProtonMail/go-vcard v0.0.0-20180326232728-33aaa0a0c8a5 h1:Uga1DHFN4GUxuDQr0F71tpi8I9HqPIlZodZAI1lR6VQ=
 github.com/ProtonMail/go-vcard v0.0.0-20180326232728-33aaa0a0c8a5/go.mod h1:oeP9CMN+ajWp5jKp1kue5daJNwMMxLF+ujPaUIoJWlA=
-github.com/ProtonMail/gopenpgp/v2 v2.0.1 h1:x0uvDhry5WzoHeJO4J3dgMLhG4Z9PeBJ2O+sDOY0LcU=
-github.com/ProtonMail/gopenpgp/v2 v2.0.1/go.mod h1:wQQCJo7DURO6S9VwH+kSDEYs/B63yZnAEfGlOg8YNBY=
-github.com/ProtonMail/mbox v0.0.0-20200918064939-909a18c9af45 h1:GDh55hDI2sNiirDqEWV8b6EB729u78Qxu3nKF970n6g=
-github.com/ProtonMail/mbox v0.0.0-20200918064939-909a18c9af45/go.mod h1:Yp9IVuuOYLEuMv4yjgDHvhb5mHOcYH6x92Oas3QqEZI=
+github.com/ProtonMail/gopenpgp/v2 v2.1.3 h1:4+nFDJ9WtcUQTip/je2Ll3P21XhAUl4asWsafLrw97c=
+github.com/ProtonMail/gopenpgp/v2 v2.1.3/go.mod h1:WeYndoqEcRR4/QbgRL24z6OwYX5T1RWerRk8NfZ6rJM=
 github.com/PuerkitoBio/goquery v1.5.1 h1:PSPBGne8NIUWw+/7vFBV+kG2J/5MOjbzc7154OaKCSE=
 github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc=
+github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398/go.mod h1:a1uqRtAwp2Xwc6WNPJEufxJ7fx3npB4UV/JOLmbu5I0=
 github.com/abiosoft/ishell v2.0.0+incompatible h1:zpwIuEHc37EzrsIYah3cpevrIc8Oma7oZPxr03tlmmw=
 github.com/abiosoft/ishell v2.0.0+incompatible/go.mod h1:HQR9AqF2R3P4XXpMpI0NAzgHf/aS6+zVXRj14cVk9qg=
 github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db h1:CjPUSXOiYptLbTdr1RceuZgSFDQ7U15ITERUGrUORx8=
 github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db/go.mod h1:rB3B4rKii8V21ydCbIzH5hZiCQE7f5E9SzUb/ZZx530=
+github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
 github.com/allan-simon/go-singleinstance v0.0.0-20160830203053-79edcfdc2dfc h1:mZca0/HZ/XWXP9txkfdl2GH6mUzBqAlyJz3u5Lg8fuA=
 github.com/allan-simon/go-singleinstance v0.0.0-20160830203053-79edcfdc2dfc/go.mod h1:qqsTQiwdyqxU05iDCsi0oN3P4nrVxAmn8xCtODDSf/U=
 github.com/andybalholm/cascadia v1.1.0 h1:BuuO6sSfQNFRu1LppgbD25Hr2vLYW25JvxHs5zzsLTo=
 github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
-github.com/certifi/gocertifi v0.0.0-20200211180108-c7c1fbc02894 h1:JLaf/iINcLyjwbtTsCJjc6rtlASgHeIJPrB6QmwURnA=
-github.com/certifi/gocertifi v0.0.0-20200211180108-c7c1fbc02894/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
+github.com/antlr/antlr4 v0.0.0-20201029161626-9a95f0cc3d7c h1:j/C2kxPfyE0d87/ggAjIsCV5Cdkqmjb+O0W8W+1J+IY=
+github.com/antlr/antlr4 v0.0.0-20201029161626-9a95f0cc3d7c/go.mod h1:T7PbCXFs94rrTttyxjbyT5+/1V8T2TYDejxUfHJjw1Y=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
 github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/codegangsta/inject v0.0.0-20150114235600-33e0aa1cb7c0/go.mod h1:4Zcjuz89kmFXt9morQgcfYZAYZ5n8WHjt81YYWIwtTM=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
+github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/cpuguy83/go-md2man v1.0.10 h1:BSKMNlYxDvnunlTymqtgONjNnaRV1sTpcovwwjF22jk=
+github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
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internal/api/api.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -22,14 +22,12 @@
 package api
 
 import (
-	"crypto/tls"
 	"fmt"
 	"net/http"
 
 	"github.com/ProtonMail/proton-bridge/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/internal/events"
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
 	"github.com/ProtonMail/proton-bridge/pkg/listener"
 	"github.com/ProtonMail/proton-bridge/pkg/ports"
 	"github.com/sirupsen/logrus"
@@ -41,21 +39,15 @@ var (
 
 type apiServer struct {
 	host          string
-	pref          *config.Preferences
-	tls           *tls.Config
-	certPath      string
-	keyPath       string
+	settings      *settings.Settings
 	eventListener listener.Listener
 }
 
 // NewAPIServer returns prepared API server struct.
-func NewAPIServer(pref *config.Preferences, tls *tls.Config, certPath, keyPath string, eventListener listener.Listener) *apiServer { //nolint[golint]
+func NewAPIServer(settings *settings.Settings, eventListener listener.Listener) *apiServer { //nolint[golint]
 	return &apiServer{
 		host:          bridge.Host,
-		pref:          pref,
-		tls:           tls,
-		certPath:      certPath,
-		keyPath:       keyPath,
+		settings:      settings,
 		eventListener: eventListener,
 	}
 }
@@ -67,14 +59,12 @@ func (api *apiServer) ListenAndServe() {
 
 	addr := api.getAddress()
 	server := &http.Server{
-		Addr:         addr,
-		Handler:      mux,
-		TLSConfig:    api.tls,
-		TLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler)),
+		Addr:    addr,
+		Handler: mux,
 	}
 
 	log.Info("API listening at ", addr)
-	if err := server.ListenAndServeTLS(api.certPath, api.keyPath); err != nil {
+	if err := server.ListenAndServe(); err != nil {
 		api.eventListener.Emit(events.ErrorEvent, "API failed: "+err.Error())
 		log.Error("API failed: ", err)
 	}
@@ -82,10 +72,10 @@ func (api *apiServer) ListenAndServe() {
 }
 
 func (api *apiServer) getAddress() string {
-	port := api.pref.GetInt(preferences.APIPortKey)
+	port := api.settings.GetInt(settings.APIPortKey)
 	newPort := ports.FindFreePortFrom(port)
 	if newPort != port {
-		api.pref.SetInt(preferences.APIPortKey, newPort)
+		api.settings.SetInt(settings.APIPortKey, newPort)
 	}
 	return getAPIAddress(api.host, newPort)
 }

internal/api/ctx.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/api/focus.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -18,7 +18,6 @@
 package api
 
 import (
-	"crypto/tls"
 	"fmt"
 	"net/http"
 
@@ -37,12 +36,9 @@ func focusHandler(ctx handlerContext) error {
 
 // CheckOtherInstanceAndFocus is helper for new instances to check if there is
 // already a running instance and get it's focus.
-func CheckOtherInstanceAndFocus(port int, tls *tls.Config) error {
-	transport := &http.Transport{TLSClientConfig: tls}
-	client := &http.Client{Transport: transport}
-
+func CheckOtherInstanceAndFocus(port int) error {
 	addr := getAPIAddress(bridge.Host, port)
-	resp, err := client.Get("https://" + addr + "/focus")
+	resp, err := (&http.Client{}).Get("http://" + addr + "/focus")
 	if err != nil {
 		return err
 	}

internal/app/base/args.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,21 +15,21 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-package cmd
+package base
 
-import (
-	"os"
-	"strings"
-)
+import "strings"
 
-// filterProcessSerialNumberFromArgs removes additional flag from MacOS. More info ProcessSerialNumber
+// StripProcessSerialNumber removes additional flag from macOS.
+// More info:
 // http://mirror.informatimago.com/next/developer.apple.com/documentation/Carbon/Reference/Process_Manager/prmref_main/data_type_5.html#//apple_ref/doc/uid/TP30000208/C001951
-func filterProcessSerialNumberFromArgs() {
-	tmp := os.Args[:0]
-	for _, arg := range os.Args {
+func StripProcessSerialNumber(args []string) []string {
+	res := args[:0]
+
+	for _, arg := range args {
 		if !strings.Contains(arg, "-psn_") {
-			tmp = append(tmp, arg)
+			res = append(res, arg)
 		}
 	}
-	os.Args = tmp
+
+	return res
 }

internal/app/base/base.go

@@ -0,0 +1,388 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package base implements a common application base currently shared by bridge and IE.
+// The base includes the following:
+//  - access to standard filesystem locations like config, cache, logging dirs
+//  - an extensible crash handler
+//  - versioned cache directory
+//  - persistent settings
+//  - event listener
+//  - credentials store
+//  - pmapi Manager
+// In addition, the base initialises logging and reacts to command line arguments
+// which control the log verbosity and enable cpu/memory profiling.
+package base
+
+import (
+	"math/rand"
+	"os"
+	"path/filepath"
+	"runtime"
+	"runtime/pprof"
+	"time"
+
+	"github.com/Masterminds/semver/v3"
+	"github.com/ProtonMail/go-autostart"
+	"github.com/ProtonMail/gopenpgp/v2/crypto"
+	"github.com/ProtonMail/proton-bridge/internal/api"
+	"github.com/ProtonMail/proton-bridge/internal/config/cache"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	"github.com/ProtonMail/proton-bridge/internal/config/tls"
+	"github.com/ProtonMail/proton-bridge/internal/config/useragent"
+	"github.com/ProtonMail/proton-bridge/internal/constants"
+	"github.com/ProtonMail/proton-bridge/internal/cookies"
+	"github.com/ProtonMail/proton-bridge/internal/crash"
+	"github.com/ProtonMail/proton-bridge/internal/events"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/ProtonMail/proton-bridge/internal/logging"
+	"github.com/ProtonMail/proton-bridge/internal/sentry"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
+	"github.com/ProtonMail/proton-bridge/internal/users/credentials"
+	"github.com/ProtonMail/proton-bridge/internal/versioner"
+	"github.com/ProtonMail/proton-bridge/pkg/keychain"
+	"github.com/ProtonMail/proton-bridge/pkg/listener"
+	"github.com/ProtonMail/proton-bridge/pkg/pmapi"
+	"github.com/allan-simon/go-singleinstance"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+const (
+	flagCPUProfile      = "cpu-prof"
+	flagCPUProfileShort = "p"
+	flagMemProfile      = "mem-prof"
+	flagMemProfileShort = "m"
+	flagLogLevel        = "log-level"
+	flagLogLevelShort   = "l"
+	// FlagCLI indicate to start with command line interface.
+	FlagCLI      = "cli"
+	flagCLIShort = "c"
+	flagRestart  = "restart"
+	flagLauncher = "launcher"
+)
+
+type Base struct {
+	SentryReporter *sentry.Reporter
+	CrashHandler   *crash.Handler
+	Locations      *locations.Locations
+	Settings       *settings.Settings
+	Lock           *os.File
+	Cache          *cache.Cache
+	Listener       listener.Listener
+	Creds          *credentials.Store
+	CM             pmapi.Manager
+	CookieJar      *cookies.Jar
+	UserAgent      *useragent.UserAgent
+	Updater        *updater.Updater
+	Versioner      *versioner.Versioner
+	TLS            *tls.TLS
+	Autostart      *autostart.App
+
+	Name    string // the app's name
+	usage   string // the app's usage description
+	command string // the command used to launch the app (either the exe path or the launcher path)
+	restart bool   // whether the app is currently set to restart
+
+	teardown []func() error // actions to perform when app is exiting
+}
+
+func New( // nolint[funlen]
+	appName,
+	appUsage,
+	configName,
+	updateURLName,
+	keychainName,
+	cacheVersion string,
+) (*Base, error) {
+	userAgent := useragent.New()
+
+	sentryReporter := sentry.NewReporter(appName, constants.Version, userAgent)
+
+	crashHandler := crash.NewHandler(
+		sentryReporter.ReportException,
+		crash.ShowErrorNotification(appName),
+	)
+	defer crashHandler.HandlePanic()
+
+	rand.Seed(time.Now().UnixNano())
+	os.Args = StripProcessSerialNumber(os.Args)
+
+	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, configName))
+	if err != nil {
+		return nil, err
+	}
+
+	locations := locations.New(locationsProvider, configName)
+
+	logsPath, err := locations.ProvideLogsPath()
+	if err != nil {
+		return nil, err
+	}
+	if err := logging.Init(logsPath); err != nil {
+		return nil, err
+	}
+	crashHandler.AddRecoveryAction(logging.DumpStackTrace(logsPath))
+
+	if err := migrateFiles(configName); err != nil {
+		logrus.WithError(err).Warn("Old config files could not be migrated")
+	}
+
+	if err := locations.Clean(); err != nil {
+		return nil, err
+	}
+
+	settingsPath, err := locations.ProvideSettingsPath()
+	if err != nil {
+		return nil, err
+	}
+	settingsObj := settings.New(settingsPath)
+
+	lock, err := singleinstance.CreateLockFile(locations.GetLockFile())
+	if err != nil {
+		logrus.Warnf("%v is already running", appName)
+		return nil, api.CheckOtherInstanceAndFocus(settingsObj.GetInt(settings.APIPortKey))
+	}
+
+	cachePath, err := locations.ProvideCachePath()
+	if err != nil {
+		return nil, err
+	}
+	cache, err := cache.New(cachePath, cacheVersion)
+	if err != nil {
+		return nil, err
+	}
+	if err := cache.RemoveOldVersions(); err != nil {
+		return nil, err
+	}
+
+	listener := listener.New()
+	events.SetupEvents(listener)
+
+	// If we can't load the keychain for whatever reason,
+	// we signal to frontend and supply a dummy keychain that always returns errors.
+	kc, err := keychain.NewKeychain(settingsObj, keychainName)
+	if err != nil {
+		listener.Emit(events.CredentialsErrorEvent, err.Error())
+		kc = keychain.NewMissingKeychain()
+	}
+
+	cfg := pmapi.NewConfig(configName, constants.Version)
+	cfg.GetUserAgent = userAgent.String
+	cfg.UpgradeApplicationHandler = func() { listener.Emit(events.UpgradeApplicationEvent, "") }
+	cfg.TLSIssueHandler = func() { listener.Emit(events.TLSCertIssue, "") }
+
+	cm := pmapi.New(cfg)
+
+	cm.AddConnectionObserver(pmapi.NewConnectionObserver(
+		func() { listener.Emit(events.InternetOffEvent, "") },
+		func() { listener.Emit(events.InternetOnEvent, "") },
+	))
+
+	jar, err := cookies.NewCookieJar(settingsObj)
+	if err != nil {
+		return nil, err
+	}
+
+	cm.SetCookieJar(jar)
+
+	key, err := crypto.NewKeyFromArmored(updater.DefaultPublicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	kr, err := crypto.NewKeyRing(key)
+	if err != nil {
+		return nil, err
+	}
+
+	updatesDir, err := locations.ProvideUpdatesPath()
+	if err != nil {
+		return nil, err
+	}
+
+	versioner := versioner.New(updatesDir)
+	installer := updater.NewInstaller(versioner)
+	updater := updater.New(
+		cm,
+		installer,
+		settingsObj,
+		kr,
+		semver.MustParse(constants.Version),
+		updateURLName,
+		runtime.GOOS,
+	)
+
+	exe, err := os.Executable()
+	if err != nil {
+		return nil, err
+	}
+
+	autostart := &autostart.App{
+		Name:        appName,
+		DisplayName: appName,
+		Exec:        []string{exe},
+	}
+
+	return &Base{
+		SentryReporter: sentryReporter,
+		CrashHandler:   crashHandler,
+		Locations:      locations,
+		Settings:       settingsObj,
+		Lock:           lock,
+		Cache:          cache,
+		Listener:       listener,
+		Creds:          credentials.NewStore(kc),
+		CM:             cm,
+		CookieJar:      jar,
+		UserAgent:      userAgent,
+		Updater:        updater,
+		Versioner:      versioner,
+		TLS:            tls.New(settingsPath),
+		Autostart:      autostart,
+
+		Name:  appName,
+		usage: appUsage,
+
+		// By default, the command is the app's executable.
+		// This can be changed at runtime by using the "--launcher" flag.
+		command: exe,
+	}, nil
+}
+
+func (b *Base) NewApp(action func(*Base, *cli.Context) error) *cli.App {
+	app := cli.NewApp()
+
+	app.Name = b.Name
+	app.Usage = b.usage
+	app.Version = constants.Version
+	app.Action = b.run(action)
+	app.Flags = []cli.Flag{
+		&cli.BoolFlag{
+			Name:    flagCPUProfile,
+			Aliases: []string{flagCPUProfileShort},
+			Usage:   "Generate CPU profile",
+		},
+		&cli.BoolFlag{
+			Name:    flagMemProfile,
+			Aliases: []string{flagMemProfileShort},
+			Usage:   "Generate memory profile",
+		},
+		&cli.StringFlag{
+			Name:    flagLogLevel,
+			Aliases: []string{flagLogLevelShort},
+			Usage:   "Set the log level (one of panic, fatal, error, warn, info, debug)",
+		},
+		&cli.BoolFlag{
+			Name:    FlagCLI,
+			Aliases: []string{flagCLIShort},
+			Usage:   "Use command line interface",
+		},
+		&cli.StringFlag{
+			Name:   flagRestart,
+			Usage:  "The number of times the application has already restarted",
+			Hidden: true,
+		},
+		&cli.StringFlag{
+			Name:   flagLauncher,
+			Usage:  "The launcher to use to restart the application",
+			Hidden: true,
+		},
+	}
+
+	return app
+}
+
+// SetToRestart sets the app to restart the next time it is closed.
+func (b *Base) SetToRestart() {
+	b.restart = true
+}
+
+// AddTeardownAction adds an action to perform during app teardown.
+func (b *Base) AddTeardownAction(fn func() error) {
+	b.teardown = append(b.teardown, fn)
+}
+
+func (b *Base) run(appMainLoop func(*Base, *cli.Context) error) cli.ActionFunc { // nolint[funlen]
+	return func(c *cli.Context) error {
+		defer b.CrashHandler.HandlePanic()
+		defer func() { _ = b.Lock.Close() }()
+
+		// If launcher was used to start the app, use that for restart/autostart.
+		if launcher := c.String(flagLauncher); launcher != "" {
+			b.Autostart.Exec = []string{launcher}
+			b.command = launcher
+		}
+
+		if c.Bool(flagCPUProfile) {
+			startCPUProfile()
+			defer pprof.StopCPUProfile()
+		}
+
+		if c.Bool(flagMemProfile) {
+			defer makeMemoryProfile()
+		}
+
+		logging.SetLevel(c.String(flagLogLevel))
+		b.CM.SetLogging(logrus.WithField("pkg", "pmapi"), logrus.GetLevel() == logrus.TraceLevel)
+
+		logrus.
+			WithField("appName", b.Name).
+			WithField("version", constants.Version).
+			WithField("revision", constants.Revision).
+			WithField("build", constants.BuildTime).
+			WithField("runtime", runtime.GOOS).
+			WithField("args", os.Args).
+			Info("Run app")
+
+		b.CrashHandler.AddRecoveryAction(func(interface{}) error {
+			if c.Int(flagRestart) > maxAllowedRestarts {
+				logrus.
+					WithField("restart", c.Int("restart")).
+					Warn("Not restarting, already restarted too many times")
+
+				return nil
+			}
+
+			return b.restartApp(true)
+		})
+
+		if err := appMainLoop(b, c); err != nil {
+			return err
+		}
+
+		if err := b.doTeardown(); err != nil {
+			return err
+		}
+
+		if b.restart {
+			return b.restartApp(false)
+		}
+
+		return nil
+	}
+}
+
+func (b *Base) doTeardown() error {
+	for _, action := range b.teardown {
+		if err := action(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

internal/app/base/migration.go

@@ -0,0 +1,131 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package base
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/ProtonMail/proton-bridge/internal/constants"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/sirupsen/logrus"
+)
+
+// migrateFiles migrates files from their old (pre-refactor) locations to their new locations.
+// We can remove this eventually.
+//
+// | entity    |               old location                |            new location                |
+// |-----------|-------------------------------------------|----------------------------------------|
+// | prefs     | ~/.cache/protonmail/<app>/c11/prefs.json  | ~/.config/protonmail/<app>/prefs.json  |
+// | c11 1.5.x | ~/.cache/protonmail/<app>/c11             | ~/.cache/protonmail/<app>/cache/c11    |
+// | c11 1.6.x | ~/.cache/protonmail/<app>/cache/c11       | ~/.config/protonmail/<app>/cache/c11   |
+// | updates   | ~/.cache/protonmail/<app>/updates         | ~/.config/protonmail/<app>/updates     |.
+func migrateFiles(configName string) error {
+	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, configName))
+	if err != nil {
+		return err
+	}
+
+	locations := locations.New(locationsProvider, configName)
+	userCacheDir := locationsProvider.UserCache()
+
+	if err := migratePrefsFrom15x(locations, userCacheDir); err != nil {
+		return err
+	}
+	if err := migrateCacheFromBoth15xAnd16x(locations, userCacheDir); err != nil {
+		return err
+	}
+	if err := migrateUpdatesFrom16x(configName, locations); err != nil { //nolint[revive] It is more clear to structure this way
+		return err
+	}
+	return nil
+}
+
+func migratePrefsFrom15x(locations *locations.Locations, userCacheDir string) error {
+	newSettingsDir, err := locations.ProvideSettingsPath()
+	if err != nil {
+		return err
+	}
+
+	return moveIfExists(
+		filepath.Join(userCacheDir, "c11", "prefs.json"),
+		filepath.Join(newSettingsDir, "prefs.json"),
+	)
+}
+
+func migrateCacheFromBoth15xAnd16x(locations *locations.Locations, userCacheDir string) error {
+	olderCacheDir := userCacheDir
+	newerCacheDir := locations.GetOldCachePath()
+	latestCacheDir, err := locations.ProvideCachePath()
+	if err != nil {
+		return err
+	}
+
+	// Migration for versions before 1.6.x.
+	if err := moveIfExists(
+		filepath.Join(olderCacheDir, "c11"),
+		filepath.Join(latestCacheDir, "c11"),
+	); err != nil {
+		return err
+	}
+
+	// Migration for versions 1.6.x.
+	return moveIfExists(
+		filepath.Join(newerCacheDir, "c11"),
+		filepath.Join(latestCacheDir, "c11"),
+	)
+}
+
+func migrateUpdatesFrom16x(configName string, locations *locations.Locations) error {
+	// In order to properly update Bridge 1.6.X and higher we need to
+	// change the launcher first. Since this is not part of automatic
+	// updates the migration must wait until manual update. Until that
+	// we need to keep old path.
+	if configName == "bridge" {
+		return nil
+	}
+
+	oldUpdatesPath := locations.GetOldUpdatesPath()
+	// Do not use ProvideUpdatesPath, that creates dir right away.
+	newUpdatesPath := locations.GetUpdatesPath()
+
+	return moveIfExists(oldUpdatesPath, newUpdatesPath)
+}
+
+func moveIfExists(source, destination string) error {
+	l := logrus.WithField("source", source).WithField("destination", destination)
+
+	if _, err := os.Stat(source); os.IsNotExist(err) {
+		l.Info("No need to migrate file, source doesn't exist")
+		return nil
+	}
+
+	if _, err := os.Stat(destination); !os.IsNotExist(err) {
+		// Once migrated, files should not stay in source anymore. Therefore
+		// if some files are still in source location but target already exist,
+		// it's suspicious. Could happen by installing new version, then the
+		// old one because of some reason, and then the new one again.
+		// Good to see as warning because it could be a reason why Bridge is
+		// behaving weirdly, like wrong configuration, or db re-sync and so on.
+		l.Warn("No need to migrate file, target already exists")
+		return nil
+	}
+
+	l.Info("Migrating files")
+	return os.Rename(source, destination)
+}

internal/app/base/profiling.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,40 +15,42 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-package cmd
+package base
 
 import (
 	"os"
 	"path/filepath"
 	"runtime"
 	"runtime/pprof"
+
+	"github.com/sirupsen/logrus"
 )
 
-// StartCPUProfile starts CPU pprof.
-func StartCPUProfile() {
+// startCPUProfile starts CPU pprof.
+func startCPUProfile() {
 	f, err := os.Create("./cpu.pprof")
 	if err != nil {
-		log.Fatal("Could not create CPU profile: ", err)
+		logrus.Fatal("Could not create CPU profile: ", err)
 	}
 	if err := pprof.StartCPUProfile(f); err != nil {
-		log.Fatal("Could not start CPU profile: ", err)
+		logrus.Fatal("Could not start CPU profile: ", err)
 	}
 }
 
-// MakeMemoryProfile generates memory pprof.
-func MakeMemoryProfile() {
+// makeMemoryProfile generates memory pprof.
+func makeMemoryProfile() {
 	name := "./mem.pprof"
 	f, err := os.Create(name)
 	if err != nil {
-		log.Fatal("Could not create memory profile: ", err)
+		logrus.Fatal("Could not create memory profile: ", err)
 	}
 	if abs, err := filepath.Abs(name); err == nil {
 		name = abs
 	}
-	log.Info("Writing memory profile to ", name)
+	logrus.Info("Writing memory profile to ", name)
 	runtime.GC() // get up-to-date statistics
 	if err := pprof.WriteHeapProfile(f); err != nil {
-		log.Fatal("Could not write memory profile: ", err)
+		logrus.Fatal("Could not write memory profile: ", err)
 	}
 	_ = f.Close()
 }

internal/app/base/restart.go

@@ -0,0 +1,79 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package base
+
+import (
+	"os"
+	"os/exec"
+	"strconv"
+
+	"github.com/sirupsen/logrus"
+)
+
+// maxAllowedRestarts controls after how many crashes the app will give up restarting.
+const maxAllowedRestarts = 10
+
+func (b *Base) restartApp(crash bool) error {
+	var args []string
+
+	if crash {
+		args = incrementRestartFlag(os.Args)[1:]
+	} else {
+		args = os.Args[1:]
+	}
+
+	logrus.
+		WithField("command", b.command).
+		WithField("args", args).
+		Warn("Restarting")
+
+	return exec.Command(b.command, args...).Start() // nolint[gosec]
+}
+
+// incrementRestartFlag increments the value of the restart flag.
+// If no such flag is present, it is added with initial value 1.
+func incrementRestartFlag(args []string) []string {
+	res := append([]string{}, args...)
+
+	hasFlag := false
+
+	for k, v := range res {
+		if v != "--restart" {
+			continue
+		}
+
+		hasFlag = true
+
+		if k+1 >= len(res) {
+			continue
+		}
+
+		n, err := strconv.Atoi(res[k+1])
+		if err != nil {
+			res[k+1] = "1"
+		} else {
+			res[k+1] = strconv.Itoa(n + 1)
+		}
+	}
+
+	if !hasFlag {
+		res = append(res, "--restart", "1")
+	}
+
+	return res
+}

internal/app/base/restart_test.go

@@ -0,0 +1,49 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package base
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIncrementRestartFlag(t *testing.T) {
+	var tests = []struct {
+		in  []string
+		out []string
+	}{
+		{[]string{"./bridge", "--restart", "1"}, []string{"./bridge", "--restart", "2"}},
+		{[]string{"./bridge", "--restart", "2"}, []string{"./bridge", "--restart", "3"}},
+		{[]string{"./bridge", "--other", "--restart", "2"}, []string{"./bridge", "--other", "--restart", "3"}},
+		{[]string{"./bridge", "--restart", "2", "--other"}, []string{"./bridge", "--restart", "3", "--other"}},
+		{[]string{"./bridge", "--restart", "2", "--other", "2"}, []string{"./bridge", "--restart", "3", "--other", "2"}},
+		{[]string{"./bridge"}, []string{"./bridge", "--restart", "1"}},
+		{[]string{"./bridge", "--something"}, []string{"./bridge", "--something", "--restart", "1"}},
+		{[]string{"./bridge", "--something", "--else"}, []string{"./bridge", "--something", "--else", "--restart", "1"}},
+		{[]string{"./bridge", "--restart", "bad"}, []string{"./bridge", "--restart", "1"}},
+		{[]string{"./bridge", "--restart", "bad", "--other"}, []string{"./bridge", "--restart", "1", "--other"}},
+	}
+
+	for _, tt := range tests {
+		t.Run(strings.Join(tt.in, " "), func(t *testing.T) {
+			assert.Equal(t, tt.out, incrementRestartFlag(tt.in))
+		})
+	}
+}

internal/app/bridge/bridge.go

@@ -0,0 +1,235 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package bridge implements the bridge CLI application.
+package bridge
+
+import (
+	"crypto/tls"
+	"time"
+
+	"github.com/ProtonMail/proton-bridge/internal/api"
+	"github.com/ProtonMail/proton-bridge/internal/app/base"
+	"github.com/ProtonMail/proton-bridge/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	pkgTLS "github.com/ProtonMail/proton-bridge/internal/config/tls"
+	"github.com/ProtonMail/proton-bridge/internal/constants"
+	"github.com/ProtonMail/proton-bridge/internal/frontend"
+	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
+	"github.com/ProtonMail/proton-bridge/internal/imap"
+	"github.com/ProtonMail/proton-bridge/internal/smtp"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+const (
+	flagLogIMAP        = "log-imap"
+	flagLogSMTP        = "log-smtp"
+	flagNoWindow       = "no-window"
+	flagNonInteractive = "noninteractive"
+)
+
+func New(base *base.Base) *cli.App {
+	app := base.NewApp(run)
+
+	app.Flags = append(app.Flags, []cli.Flag{
+		&cli.StringFlag{
+			Name:  flagLogIMAP,
+			Usage: "Enable logging of IMAP communications (all|client|server) (may contain decrypted data!)"},
+		&cli.BoolFlag{
+			Name:  flagLogSMTP,
+			Usage: "Enable logging of SMTP communications (may contain decrypted data!)"},
+		&cli.BoolFlag{
+			Name:  flagNoWindow,
+			Usage: "Don't show window after start"},
+		&cli.BoolFlag{
+			Name:  flagNonInteractive,
+			Usage: "Start Bridge entirely noninteractively"},
+	}...)
+
+	return app
+}
+
+func run(b *base.Base, c *cli.Context) error { // nolint[funlen]
+	tlsConfig, err := loadTLSConfig(b)
+	if err != nil {
+		logrus.WithError(err).Fatal("Failed to load TLS config")
+	}
+	bridge := bridge.New(b.Locations, b.Cache, b.Settings, b.SentryReporter, b.CrashHandler, b.Listener, b.CM, b.Creds, b.Updater, b.Versioner)
+	imapBackend := imap.NewIMAPBackend(b.CrashHandler, b.Listener, b.Cache, bridge)
+	smtpBackend := smtp.NewSMTPBackend(b.CrashHandler, b.Listener, b.Settings, bridge)
+
+	go func() {
+		defer b.CrashHandler.HandlePanic()
+		api.NewAPIServer(b.Settings, b.Listener).ListenAndServe()
+	}()
+
+	go func() {
+		defer b.CrashHandler.HandlePanic()
+		imapPort := b.Settings.GetInt(settings.IMAPPortKey)
+		imap.NewIMAPServer(
+			b.CrashHandler,
+			c.String(flagLogIMAP) == "client" || c.String(flagLogIMAP) == "all",
+			c.String(flagLogIMAP) == "server" || c.String(flagLogIMAP) == "all",
+			imapPort, tlsConfig, imapBackend, b.UserAgent, b.Listener).ListenAndServe()
+	}()
+
+	go func() {
+		defer b.CrashHandler.HandlePanic()
+		smtpPort := b.Settings.GetInt(settings.SMTPPortKey)
+		useSSL := b.Settings.GetBool(settings.SMTPSSLKey)
+		smtp.NewSMTPServer(
+			b.CrashHandler,
+			c.Bool(flagLogSMTP),
+			smtpPort, useSSL, tlsConfig, smtpBackend, b.Listener).ListenAndServe()
+	}()
+
+	// Bridge supports no-window option which we should use for autostart.
+	b.Autostart.Exec = append(b.Autostart.Exec, "--"+flagNoWindow)
+
+	// We want to remove old versions if the app exits successfully.
+	b.AddTeardownAction(b.Versioner.RemoveOldVersions)
+
+	// We want cookies to be saved to disk so they are loaded the next time.
+	b.AddTeardownAction(b.CookieJar.PersistCookies)
+
+	var frontendMode string
+
+	switch {
+	case c.Bool(base.FlagCLI):
+		frontendMode = "cli"
+	case c.Bool(flagNonInteractive):
+		return <-(make(chan error)) // Block forever.
+	default:
+		frontendMode = "qt"
+	}
+
+	f := frontend.New(
+		constants.Version,
+		constants.BuildVersion,
+		b.Name,
+		frontendMode,
+		!c.Bool(flagNoWindow),
+		b.CrashHandler,
+		b.Locations,
+		b.Settings,
+		b.Listener,
+		b.Updater,
+		b.UserAgent,
+		bridge,
+		smtpBackend,
+		b.Autostart,
+		b,
+	)
+
+	// Watch for updates routine
+	go func() {
+		ticker := time.NewTicker(constants.UpdateCheckInterval)
+
+		for {
+			checkAndHandleUpdate(b.Updater, f, b.Settings.GetBool(settings.AutoUpdateKey))
+			<-ticker.C
+		}
+	}()
+
+	return f.Loop()
+}
+
+func loadTLSConfig(b *base.Base) (*tls.Config, error) {
+	if !b.TLS.HasCerts() {
+		if err := generateTLSCerts(b); err != nil {
+			return nil, err
+		}
+	}
+
+	tlsConfig, err := b.TLS.GetConfig()
+	if err == nil {
+		return tlsConfig, nil
+	}
+
+	logrus.WithError(err).Error("Failed to load TLS config, regenerating certificates")
+
+	if err := generateTLSCerts(b); err != nil {
+		return nil, err
+	}
+
+	return b.TLS.GetConfig()
+}
+
+func generateTLSCerts(b *base.Base) error {
+	template, err := pkgTLS.NewTLSTemplate()
+	if err != nil {
+		return errors.Wrap(err, "failed to generate TLS template")
+	}
+
+	if err := b.TLS.GenerateCerts(template); err != nil {
+		return errors.Wrap(err, "failed to generate TLS certs")
+	}
+
+	if err := b.TLS.InstallCerts(); err != nil {
+		return errors.Wrap(err, "failed to install TLS certs")
+	}
+
+	return nil
+}
+
+func checkAndHandleUpdate(u types.Updater, f frontend.Frontend, autoUpdate bool) {
+	log := logrus.WithField("pkg", "app/bridge")
+	version, err := u.Check()
+	if err != nil {
+		log.WithError(err).Error("An error occurred while checking for updates")
+		return
+	}
+
+	f.WaitUntilFrontendIsReady()
+
+	// Update links in UI
+	f.SetVersion(version)
+
+	if !u.IsUpdateApplicable(version) {
+		log.Info("No need to update")
+		return
+	}
+
+	log.WithField("version", version.Version).Info("An update is available")
+
+	if !autoUpdate {
+		f.NotifyManualUpdate(version, u.CanInstall(version))
+		return
+	}
+
+	if !u.CanInstall(version) {
+		log.Info("A manual update is required")
+		f.NotifySilentUpdateError(updater.ErrManualUpdateRequired)
+		return
+	}
+
+	if err := u.InstallUpdate(version); err != nil {
+		if errors.Cause(err) == updater.ErrDownloadVerify {
+			log.WithError(err).Warning("Skipping update installation due to temporary error")
+		} else {
+			log.WithError(err).Error("The update couldn't be installed")
+			f.NotifySilentUpdateError(err)
+		}
+
+		return
+	}
+
+	f.NotifySilentUpdateInstalled()
+}

internal/app/ie/ie.go

@@ -0,0 +1,110 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package ie implements the ie CLI application.
+package ie
+
+import (
+	"time"
+
+	"github.com/ProtonMail/proton-bridge/internal/api"
+	"github.com/ProtonMail/proton-bridge/internal/app/base"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	"github.com/ProtonMail/proton-bridge/internal/constants"
+	"github.com/ProtonMail/proton-bridge/internal/frontend"
+	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
+	"github.com/ProtonMail/proton-bridge/internal/importexport"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+func New(b *base.Base) *cli.App {
+	return b.NewApp(run)
+}
+
+func run(b *base.Base, c *cli.Context) error {
+	ie := importexport.New(b.Locations, b.Cache, b.CrashHandler, b.Listener, b.CM, b.Creds)
+
+	go func() {
+		defer b.CrashHandler.HandlePanic()
+		api.NewAPIServer(b.Settings, b.Listener).ListenAndServe()
+	}()
+
+	var frontendMode string
+
+	switch {
+	case c.Bool(base.FlagCLI):
+		frontendMode = "cli"
+	default:
+		frontendMode = "qt"
+	}
+
+	// We want to remove old versions if the app exits successfully.
+	b.AddTeardownAction(b.Versioner.RemoveOldVersions)
+
+	// We want cookies to be saved to disk so they are loaded the next time.
+	b.AddTeardownAction(b.CookieJar.PersistCookies)
+
+	f := frontend.NewImportExport(
+		constants.Version,
+		constants.BuildVersion,
+		b.Name,
+		frontendMode,
+		b.CrashHandler,
+		b.Locations,
+		b.Settings,
+		b.Listener,
+		b.Updater,
+		ie,
+		b,
+	)
+
+	// Watch for updates routine
+	go func() {
+		ticker := time.NewTicker(time.Hour)
+
+		for {
+			checkAndHandleUpdate(b.Updater, f, b.Settings.GetBool(settings.AutoUpdateKey))
+			<-ticker.C
+		}
+	}()
+
+	return f.Loop()
+}
+
+func checkAndHandleUpdate(u types.Updater, f frontend.Frontend, autoUpdate bool) { //nolint[unparam]
+	log := logrus.WithField("pkg", "app/ie")
+	version, err := u.Check()
+	if err != nil {
+		log.WithError(err).Error("An error occurred while checking for updates")
+		return
+	}
+
+	f.WaitUntilFrontendIsReady()
+
+	// Update links in UI
+	f.SetVersion(version)
+
+	if !u.IsUpdateApplicable(version) {
+		log.Info("No need to update")
+		return
+	}
+
+	log.WithField("version", version.Version).Info("An update is available")
+
+	f.NotifyManualUpdate(version, u.CanInstall(version))
+}

internal/bridge/bridge.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -19,11 +19,16 @@
 package bridge
 
 import (
+	"context"
+	"fmt"
 	"strconv"
 	"time"
 
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	"github.com/ProtonMail/proton-bridge/internal/constants"
 	"github.com/ProtonMail/proton-bridge/internal/metrics"
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
+	"github.com/ProtonMail/proton-bridge/internal/sentry"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
 	"github.com/ProtonMail/proton-bridge/internal/users"
 	"github.com/ProtonMail/proton-bridge/pkg/pmapi"
 
@@ -38,40 +43,49 @@ var (
 type Bridge struct {
 	*users.Users
 
-	pref          PreferenceProvider
-	clientManager users.ClientManager
-
-	userAgentClientName    string
-	userAgentClientVersion string
-	userAgentOS            string
+	locations     Locator
+	settings      SettingsProvider
+	clientManager pmapi.Manager
+	updater       Updater
+	versioner     Versioner
 }
 
 func New(
-	config Configer,
-	pref PreferenceProvider,
+	locations Locator,
+	cache Cacher,
+	s SettingsProvider,
+	sentryReporter *sentry.Reporter,
 	panicHandler users.PanicHandler,
 	eventListener listener.Listener,
-	clientManager users.ClientManager,
+	clientManager pmapi.Manager,
 	credStorer users.CredentialsStorer,
+	updater Updater,
+	versioner Versioner,
 ) *Bridge {
 	// Allow DoH before starting the app if the user has previously set this setting.
 	// This allows us to start even if protonmail is blocked.
-	if pref.GetBool(preferences.AllowProxyKey) {
+	if s.GetBool(settings.AllowProxyKey) {
 		clientManager.AllowProxy()
 	}
 
-	storeFactory := newStoreFactory(config, panicHandler, clientManager, eventListener)
-	u := users.New(config, panicHandler, eventListener, clientManager, credStorer, storeFactory, true)
+	storeFactory := newStoreFactory(cache, sentryReporter, panicHandler, eventListener)
+	u := users.New(locations, panicHandler, eventListener, clientManager, credStorer, storeFactory, true)
 	b := &Bridge{
 		Users: u,
 
-		pref:          pref,
+		locations:     locations,
+		settings:      s,
 		clientManager: clientManager,
+		updater:       updater,
+		versioner:     versioner,
 	}
 
-	if pref.GetBool(preferences.FirstStartKey) {
-		b.SendMetric(metrics.New(metrics.Setup, metrics.FirstStart, metrics.Label(config.GetVersion())))
-		pref.SetBool(preferences.FirstStartKey, false)
+	if s.GetBool(settings.FirstStartKey) {
+		if err := b.SendMetric(metrics.New(metrics.Setup, metrics.FirstStart, metrics.Label(constants.Version))); err != nil {
+			logrus.WithError(err).Error("Failed to send metric")
+		}
+
+		s.SetBool(settings.FirstStartKey, false)
 	}
 
 	go b.heartbeat()
@@ -81,72 +95,85 @@ func New(
 
 // heartbeat sends a heartbeat signal once a day.
 func (b *Bridge) heartbeat() {
-	ticker := time.NewTicker(1 * time.Minute)
-
-	for range ticker.C {
-		next, err := strconv.ParseInt(b.pref.Get(preferences.NextHeartbeatKey), 10, 64)
+	for range time.Tick(time.Minute) {
+		lastHeartbeatDay, err := strconv.ParseInt(b.settings.Get(settings.LastHeartbeatKey), 10, 64)
 		if err != nil {
 			continue
 		}
-		nextTime := time.Unix(next, 0)
-		if time.Now().After(nextTime) {
-			b.SendMetric(metrics.New(metrics.Heartbeat, metrics.Daily, metrics.NoLabel))
-			nextTime = nextTime.Add(24 * time.Hour)
-			b.pref.Set(preferences.NextHeartbeatKey, strconv.FormatInt(nextTime.Unix(), 10))
+
+		// If we're still on the same day, don't send a heartbeat.
+		if time.Now().YearDay() == int(lastHeartbeatDay) {
+			continue
 		}
+
+		// We're on the next (or a different) day, so send a heartbeat.
+		if err := b.SendMetric(metrics.New(metrics.Heartbeat, metrics.Daily, metrics.NoLabel)); err != nil {
+			logrus.WithError(err).Error("Failed to send heartbeat")
+			continue
+		}
+
+		// Heartbeat was sent successfully so update the last heartbeat day.
+		b.settings.Set(settings.LastHeartbeatKey, fmt.Sprintf("%v", time.Now().YearDay()))
 	}
 }
 
-// GetCurrentClient returns currently connected client (e.g. Thunderbird).
-func (b *Bridge) GetCurrentClient() string {
-	res := b.userAgentClientName
-	if b.userAgentClientVersion != "" {
-		res = res + " " + b.userAgentClientVersion
-	}
-	return res
-}
-
-// SetCurrentClient updates client info (e.g. Thunderbird) and sets the user agent
-// on pmapi. By default no client is used, IMAP has to detect it on first login.
-func (b *Bridge) SetCurrentClient(clientName, clientVersion string) {
-	b.userAgentClientName = clientName
-	b.userAgentClientVersion = clientVersion
-	b.updateUserAgent()
-}
-
-// SetCurrentOS updates OS and sets the user agent on pmapi. By default we use
-// `runtime.GOOS`, but this can be overridden in case of better detection.
-func (b *Bridge) SetCurrentOS(os string) {
-	b.userAgentOS = os
-	b.updateUserAgent()
-}
-
-func (b *Bridge) updateUserAgent() {
-	b.clientManager.SetUserAgent(b.userAgentClientName, b.userAgentClientVersion, b.userAgentOS)
-}
-
 // ReportBug reports a new bug from the user.
 func (b *Bridge) ReportBug(osType, osVersion, description, accountName, address, emailClient string) error {
-	c := b.clientManager.GetAnonymousClient()
-	defer c.Logout()
-
-	title := "[Bridge] Bug"
-	report := pmapi.ReportReq{
+	return b.clientManager.ReportBug(context.Background(), pmapi.ReportBugReq{
 		OS:          osType,
 		OSVersion:   osVersion,
 		Browser:     emailClient,
-		Title:       title,
+		Title:       "[Bridge] Bug",
 		Description: description,
 		Username:    accountName,
 		Email:       address,
-	}
-
-	if err := c.Report(report); err != nil {
-		log.Error("Reporting bug failed: ", err)
-		return err
-	}
-
-	log.Info("Bug successfully reported")
-
-	return nil
+	})
+}
+
+// GetUpdateChannel returns currently set update channel.
+func (b *Bridge) GetUpdateChannel() updater.UpdateChannel {
+	return updater.UpdateChannel(b.settings.Get(settings.UpdateChannelKey))
+}
+
+// SetUpdateChannel switches update channel.
+// Downgrading to previous version (by switching from early to stable, for example)
+// requires clearing all data including update files due to possibility of
+// inconsistency between versions and absence of backwards migration scripts.
+func (b *Bridge) SetUpdateChannel(channel updater.UpdateChannel) (needRestart bool, err error) {
+	b.settings.Set(settings.UpdateChannelKey, string(channel))
+
+	version, err := b.updater.Check()
+	if err != nil {
+		return false, err
+	}
+
+	// We have to deal right away only with downgrade - that action needs to
+	// clear data and updates, and install bridge right away. But regular
+	// upgrade can be leaved out for periodic check.
+	if !b.updater.IsDowngrade(version) {
+		return false, nil
+	}
+
+	if err := b.Users.ClearData(); err != nil {
+		log.WithError(err).Error("Failed to clear data while downgrading channel")
+	}
+	if err := b.locations.ClearUpdates(); err != nil {
+		log.WithError(err).Error("Failed to clear updates while downgrading channel")
+	}
+
+	if err := b.updater.InstallUpdate(version); err != nil {
+		return false, err
+	}
+
+	return true, b.versioner.RemoveOtherVersions(version.Version)
+}
+
+// GetKeychainApp returns current keychain helper.
+func (b *Bridge) GetKeychainApp() string {
+	return b.settings.Get(settings.PreferredKeychainKey)
+}
+
+// SetKeychainApp sets current keychain helper.
+func (b *Bridge) SetKeychainApp(helper string) {
+	b.settings.Set(settings.PreferredKeychainKey, helper)
 }

internal/bridge/constants.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/bridge/credits.go

@@ -1,22 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-// Code generated by ./credits.sh at Tue Sep 29 14:56:25 CEST 2020. DO NOT EDIT.
-
-package bridge
-
-const Credits = "github.com/0xAX/notificator;github.com/Masterminds/semver/v3;github.com/ProtonMail/bcrypt;github.com/ProtonMail/crypto;github.com/ProtonMail/docker-credential-helpers;github.com/ProtonMail/go-appdir;github.com/ProtonMail/go-apple-mobileconfig;github.com/ProtonMail/go-autostart;github.com/ProtonMail/go-imap;github.com/ProtonMail/go-imap-id;github.com/ProtonMail/go-smtp;github.com/ProtonMail/go-vcard;github.com/ProtonMail/gopenpgp/v2;github.com/ProtonMail/mbox;github.com/PuerkitoBio/goquery;github.com/abiosoft/ishell;github.com/abiosoft/readline;github.com/allan-simon/go-singleinstance;github.com/certifi/gocertifi;github.com/chzyer/logex;github.com/chzyer/test;github.com/cucumber/godog;github.com/docker/docker-credential-helpers;github.com/emersion/go-imap;github.com/emersion/go-imap-appendlimit;github.com/emersion/go-imap-idle;github.com/emersion/go-imap-move;github.com/emersion/go-imap-quota;github.com/emersion/go-imap-specialuse;github.com/emersion/go-imap-unselect;github.com/emersion/go-mbox;github.com/emersion/go-message;github.com/emersion/go-sasl;github.com/emersion/go-smtp;github.com/emersion/go-textwrapper;github.com/emersion/go-vcard;github.com/fatih/color;github.com/flynn-archive/go-shlex;github.com/getsentry/raven-go;github.com/go-resty/resty/v2;github.com/golang/mock;github.com/google/go-cmp;github.com/google/uuid;github.com/gopherjs/gopherjs;github.com/hashicorp/go-multierror;github.com/jameskeane/bcrypt;github.com/jaytaylor/html2text;github.com/kardianos/osext;github.com/keybase/go-keychain;github.com/logrusorgru/aurora;github.com/mattn/go-runewidth;github.com/miekg/dns;github.com/myesui/uuid;github.com/nsf/jsondiff;github.com/olekukonko/tablewriter;github.com/pkg/errors;github.com/sirupsen/logrus;github.com/skratchdot/open-golang;github.com/ssor/bom;github.com/stretchr/testify;github.com/therecipe/qt;github.com/twinj/uuid;github.com/urfave/cli;go.etcd.io/bbolt;golang.org/x/crypto;golang.org/x/net;golang.org/x/text;gopkg.in/stretchr/testify.v1;;Font Awesome 4.7.0;;Qt 5.13 by Qt group;"

internal/bridge/release_notes.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,21 +15,12 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-// Code generated by ./release-notes.sh at 'Mon Sep 21 01:29:10 PM CEST 2020'. DO NOT EDIT.
+// Code generated by ./release-notes.sh at 'Fri Jan 22 11:01:06 AM CET 2021'. DO NOT EDIT.
 
 package bridge
 
-const ReleaseNotes = `• Bulletproofing against any potential data loss and/or duplication
-• Performance improvements for handling attachments and non-standard formatting
-• Better stability of the message parser
-• Additional foreign encoding support for outgoing messages
-• Complete refactor of the way messages are parsed to simplify code maintenance
-• Improved User-Agent detection
-• Added MacOS Big Sur compatibility
-• Added persistent anonymous API cookies
+const ReleaseNotes = `
 `
 
-const ReleaseFixedBugs = `• Fixed rare mail loss when moving from Spam folder
-• Limited log size
-• Fixed Linux font issues (mouse hover).
+const ReleaseFixedBugs = `• Fixed sending error caused by inconsistent use of upper and lower case in sender’s email address
 `

internal/bridge/store_factory.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -21,44 +21,44 @@ import (
 	"fmt"
 	"path/filepath"
 
+	"github.com/ProtonMail/proton-bridge/internal/sentry"
 	"github.com/ProtonMail/proton-bridge/internal/store"
 	"github.com/ProtonMail/proton-bridge/internal/users"
-
 	"github.com/ProtonMail/proton-bridge/pkg/listener"
 )
 
 type storeFactory struct {
-	config        StoreFactoryConfiger
-	panicHandler  users.PanicHandler
-	clientManager users.ClientManager
-	eventListener listener.Listener
-	storeCache    *store.Cache
+	cache          Cacher
+	sentryReporter *sentry.Reporter
+	panicHandler   users.PanicHandler
+	eventListener  listener.Listener
+	storeCache     *store.Cache
 }
 
 func newStoreFactory(
-	config StoreFactoryConfiger,
+	cache Cacher,
+	sentryReporter *sentry.Reporter,
 	panicHandler users.PanicHandler,
-	clientManager users.ClientManager,
 	eventListener listener.Listener,
 ) *storeFactory {
 	return &storeFactory{
-		config:        config,
-		panicHandler:  panicHandler,
-		clientManager: clientManager,
-		eventListener: eventListener,
-		storeCache:    store.NewCache(config.GetIMAPCachePath()),
+		cache:          cache,
+		sentryReporter: sentryReporter,
+		panicHandler:   panicHandler,
+		eventListener:  eventListener,
+		storeCache:     store.NewCache(cache.GetIMAPCachePath()),
 	}
 }
 
 // New creates new store for given user.
 func (f *storeFactory) New(user store.BridgeUser) (*store.Store, error) {
-	storePath := getUserStorePath(f.config.GetDBDir(), user.ID())
-	return store.New(f.panicHandler, user, f.clientManager, f.eventListener, storePath, f.storeCache)
+	storePath := getUserStorePath(f.cache.GetDBDir(), user.ID())
+	return store.New(f.sentryReporter, f.panicHandler, user, f.eventListener, storePath, f.storeCache)
 }
 
 // Remove removes all store files for given user.
 func (f *storeFactory) Remove(userID string) error {
-	storePath := getUserStorePath(f.config.GetDBDir(), userID)
+	storePath := getUserStorePath(f.cache.GetDBDir(), userID)
 	return store.RemoveStore(f.storeCache, storePath, userID)
 }
 

internal/bridge/types.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -17,22 +17,35 @@
 
 package bridge
 
-import "github.com/ProtonMail/proton-bridge/internal/users"
+import (
+	"github.com/Masterminds/semver/v3"
 
-type Configer interface {
-	users.Configer
-	StoreFactoryConfiger
+	"github.com/ProtonMail/proton-bridge/internal/updater"
+)
+
+type Locator interface {
+	Clear() error
+	ClearUpdates() error
 }
 
-type StoreFactoryConfiger interface {
-	GetDBDir() string
+type Cacher interface {
 	GetIMAPCachePath() string
+	GetDBDir() string
 }
 
-type PreferenceProvider interface {
+type SettingsProvider interface {
 	Get(key string) string
+	Set(key string, value string)
 	GetBool(key string) bool
 	SetBool(key string, val bool)
-	GetInt(key string) int
-	Set(key string, value string)
+}
+
+type Updater interface {
+	Check() (updater.VersionInfo, error)
+	IsDowngrade(updater.VersionInfo) bool
+	InstallUpdate(updater.VersionInfo) error
+}
+
+type Versioner interface {
+	RemoveOtherVersions(*semver.Version) error
 }

internal/cmd/main.go

@@ -1,86 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package cmd
-
-import (
-	"os"
-	"runtime"
-
-	"github.com/ProtonMail/proton-bridge/pkg/constants"
-	"github.com/getsentry/raven-go"
-	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
-)
-
-var (
-	log = logrus.WithField("pkg", "cmd") //nolint[gochecknoglobals]
-
-	baseFlags = []cli.Flag{ //nolint[gochecknoglobals]
-		cli.StringFlag{
-			Name:  "log-level, l",
-			Usage: "Set the log level (one of panic, fatal, error, warn, info, debug, debug-client, debug-server)"},
-		cli.BoolFlag{
-			Name:  "cli, c",
-			Usage: "Use command line interface"},
-		cli.StringFlag{
-			Name:  "version-json, g",
-			Usage: "Generate json version file"},
-		cli.BoolFlag{
-			Name:  "mem-prof, m",
-			Usage: "Generate memory profile"},
-		cli.BoolFlag{
-			Name:  "cpu-prof, p",
-			Usage: "Generate CPU profile"},
-	}
-)
-
-// Main sets up Sentry, filters out unwanted args, creates app and runs it.
-func Main(appName, usage string, extraFlags []cli.Flag, run func(*cli.Context) error) {
-	if err := raven.SetDSN(constants.DSNSentry); err != nil {
-		log.WithError(err).Errorln("Can not setup sentry DSN")
-	}
-	raven.SetRelease(constants.Revision)
-
-	filterProcessSerialNumberFromArgs()
-	filterRestartNumberFromArgs()
-
-	app := newApp(appName, usage, extraFlags, run)
-
-	logrus.SetLevel(logrus.InfoLevel)
-	log.WithField("version", constants.Version).
-		WithField("revision", constants.Revision).
-		WithField("build", constants.BuildTime).
-		WithField("runtime", runtime.GOOS).
-		WithField("args", os.Args).
-		WithField("appName", app.Name).
-		Info("Run app")
-
-	if err := app.Run(os.Args); err != nil {
-		log.Error("Program exited with error: ", err)
-	}
-}
-
-func newApp(appName, usage string, extraFlags []cli.Flag, run func(*cli.Context) error) *cli.App {
-	app := cli.NewApp()
-	app.Name = appName
-	app.Usage = usage
-	app.Version = constants.BuildVersion
-	app.Flags = append(baseFlags, extraFlags...) //nolint[gocritic]
-	app.Action = run
-	return app
-}

internal/cmd/restart.go

@@ -1,108 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package cmd
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-	"strconv"
-	"strings"
-
-	"github.com/ProtonMail/proton-bridge/internal/frontend"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
-	"github.com/urfave/cli"
-)
-
-const (
-	// After how many crashes app gives up starting.
-	maxAllowedCrashes = 10
-)
-
-var (
-	// How many crashes happened so far in a row.
-	// It will be filled from args by `filterRestartNumberFromArgs`.
-	// Every call of `HandlePanic` will increase this number.
-	// Then it will be passed as argument to the next try by `RestartApp`.
-	numberOfCrashes = 0 //nolint[gochecknoglobals]
-)
-
-// filterRestartNumberFromArgs removes flag with a number how many restart we already did.
-// See restartApp how that number is used.
-func filterRestartNumberFromArgs() {
-	tmp := os.Args[:0]
-	for i, arg := range os.Args {
-		if !strings.HasPrefix(arg, "--restart_") {
-			tmp = append(tmp, arg)
-			continue
-		}
-		var err error
-		numberOfCrashes, err = strconv.Atoi(os.Args[i][10:])
-		if err != nil {
-			numberOfCrashes = maxAllowedCrashes
-		}
-	}
-	os.Args = tmp
-}
-
-// DisableRestart disables restart once `RestartApp` is called.
-func DisableRestart() {
-	numberOfCrashes = maxAllowedCrashes
-}
-
-// RestartApp starts a new instance in background.
-func RestartApp() {
-	if numberOfCrashes >= maxAllowedCrashes {
-		log.Error("Too many crashes")
-		return
-	}
-	if exeFile, err := os.Executable(); err == nil {
-		arguments := append(os.Args[1:], fmt.Sprintf("--restart_%d", numberOfCrashes))
-		cmd := exec.Command(exeFile, arguments...) //nolint[gosec]
-		cmd.Stdout = os.Stdout
-		cmd.Stderr = os.Stderr
-		cmd.Stdin = os.Stdin
-		if err := cmd.Start(); err != nil {
-			log.Error("Restart failed: ", err)
-		}
-	}
-}
-
-// PanicHandler defines HandlePanic which can be used anywhere in defer.
-type PanicHandler struct {
-	AppName string
-	Config  *config.Config
-	Err     *error // Pointer to error of cli action.
-}
-
-// HandlePanic should be called in defer to ensure restart of app after error.
-func (ph *PanicHandler) HandlePanic() {
-	r := recover()
-	if r == nil {
-		return
-	}
-
-	config.HandlePanic(ph.Config, fmt.Sprintf("Recover: %v", r))
-	frontend.HandlePanic(ph.AppName)
-
-	*ph.Err = cli.NewExitError("Panic and restart", 255)
-	numberOfCrashes++
-	log.Error("Restarting after panic")
-	RestartApp()
-	os.Exit(255)
-}

internal/cmd/version_file.go

@@ -1,32 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package cmd
-
-import "github.com/ProtonMail/proton-bridge/internal/updates"
-
-// GenerateVersionFiles writes a JSON file with details about current build.
-// Those files are used for upgrading the app.
-func GenerateVersionFiles(updates *updates.Updates, dir string) {
-	log.Info("Generating version files")
-	for _, goos := range []string{"windows", "darwin", "linux"} {
-		log.Debug("Generating JSON for ", goos)
-		if err := updates.CreateJSONAndSign(dir, goos); err != nil {
-			log.Error(err)
-		}
-	}
-}

internal/config/cache/cache.go

@@ -0,0 +1,65 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package cache provides access to contents inside a cache directory.
+package cache
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/ProtonMail/proton-bridge/pkg/files"
+)
+
+type Cache struct {
+	dir, version string
+}
+
+func New(dir, version string) (*Cache, error) {
+	if err := os.MkdirAll(filepath.Join(dir, version), 0700); err != nil {
+		return nil, err
+	}
+
+	return &Cache{
+		dir:     dir,
+		version: version,
+	}, nil
+}
+
+// GetDBDir returns folder for db files.
+func (c *Cache) GetDBDir() string {
+	return c.getCurrentCacheDir()
+}
+
+// GetIMAPCachePath returns path to file with IMAP status.
+func (c *Cache) GetIMAPCachePath() string {
+	return filepath.Join(c.getCurrentCacheDir(), "user_info.json")
+}
+
+// GetTransferDir returns folder for import-export rules files.
+func (c *Cache) GetTransferDir() string {
+	return c.getCurrentCacheDir()
+}
+
+// RemoveOldVersions removes any cache dirs that are not the current version.
+func (c *Cache) RemoveOldVersions() error {
+	return files.Remove(c.dir).Except(c.getCurrentCacheDir()).Do()
+}
+
+func (c *Cache) getCurrentCacheDir() string {
+	return filepath.Join(c.dir, c.version)
+}

internal/config/cache/cache_test.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package cache
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRemoveOldVersions(t *testing.T) {
+	dir, err := ioutil.TempDir("", "test-cache")
+	require.NoError(t, err)
+
+	cache, err := New(dir, "c4")
+	require.NoError(t, err)
+
+	createFilesInDir(t, dir,
+		"unexpected1.txt",
+		"c1/unexpected1.txt",
+		"c2/unexpected2.txt",
+		"c3/unexpected3.txt",
+		"something.txt",
+	)
+
+	require.DirExists(t, filepath.Join(dir, "c4"))
+	require.FileExists(t, filepath.Join(dir, "unexpected1.txt"))
+	require.FileExists(t, filepath.Join(dir, "c1", "unexpected1.txt"))
+	require.FileExists(t, filepath.Join(dir, "c2", "unexpected2.txt"))
+	require.FileExists(t, filepath.Join(dir, "c3", "unexpected3.txt"))
+	require.FileExists(t, filepath.Join(dir, "something.txt"))
+
+	assert.NoError(t, cache.RemoveOldVersions())
+
+	assert.DirExists(t, filepath.Join(dir, "c4"))
+	assert.NoFileExists(t, filepath.Join(dir, "unexpected1.txt"))
+	assert.NoFileExists(t, filepath.Join(dir, "c1", "unexpected1.txt"))
+	assert.NoFileExists(t, filepath.Join(dir, "c2", "unexpected2.txt"))
+	assert.NoFileExists(t, filepath.Join(dir, "c3", "unexpected3.txt"))
+	assert.NoFileExists(t, filepath.Join(dir, "something.txt"))
+}
+
+func createFilesInDir(t *testing.T, dir string, files ...string) {
+	for _, target := range files {
+		require.NoError(t, os.MkdirAll(filepath.Dir(filepath.Join(dir, target)), 0700))
+
+		f, err := os.Create(filepath.Join(dir, target))
+		require.NoError(t, err)
+		require.NoError(t, f.Close())
+	}
+}

internal/config/settings/kvs.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,35 +15,39 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-package config
+package settings
 
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
+	"io/ioutil"
 	"os"
 	"strconv"
 	"sync"
+
+	"github.com/sirupsen/logrus"
 )
 
-type Preferences struct {
+type keyValueStore struct {
 	cache map[string]string
 	path  string
 	lock  *sync.RWMutex
 }
 
-// NewPreferences returns loaded preferences.
-func NewPreferences(preferencesPath string) *Preferences {
-	p := &Preferences{
-		path: preferencesPath,
+// newKeyValueStore returns loaded preferences.
+func newKeyValueStore(path string) *keyValueStore {
+	p := &keyValueStore{
+		path: path,
 		lock: &sync.RWMutex{},
 	}
 	if err := p.load(); err != nil {
-		log.Warn("Cannot load preferences: ", err)
+		logrus.WithError(err).Warn("Cannot load preferences file, creating new one")
 	}
 	return p
 }
 
-func (p *Preferences) load() error {
+func (p *keyValueStore) load() error {
 	if p.cache != nil {
 		return nil
 	}
@@ -62,7 +66,7 @@ func (p *Preferences) load() error {
 	return json.NewDecoder(f).Decode(&p.cache)
 }
 
-func (p *Preferences) save() error {
+func (p *keyValueStore) save() error {
 	if p.cache == nil {
 		return errors.New("cannot save preferences: cache is nil")
 	}
@@ -70,51 +74,58 @@ func (p *Preferences) save() error {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 
-	f, err := os.Create(p.path)
+	b, err := json.MarshalIndent(p.cache, "", "\t")
 	if err != nil {
 		return err
 	}
-	defer f.Close() //nolint[errcheck]
 
-	return json.NewEncoder(f).Encode(p.cache)
+	return ioutil.WriteFile(p.path, b, 0600)
 }
 
-func (p *Preferences) SetDefault(key, value string) {
+func (p *keyValueStore) setDefault(key, value string) {
 	if p.Get(key) == "" {
 		p.Set(key, value)
 	}
 }
 
-func (p *Preferences) Get(key string) string {
+func (p *keyValueStore) Get(key string) string {
 	p.lock.RLock()
 	defer p.lock.RUnlock()
 
 	return p.cache[key]
 }
 
-func (p *Preferences) GetBool(key string) bool {
+func (p *keyValueStore) GetBool(key string) bool {
 	return p.Get(key) == "true"
 }
 
-func (p *Preferences) GetInt(key string) int {
+func (p *keyValueStore) GetInt(key string) int {
 	value, err := strconv.Atoi(p.Get(key))
 	if err != nil {
-		log.Error("Cannot parse int: ", err)
+		logrus.WithError(err).Error("Cannot parse int")
 	}
 	return value
 }
 
-func (p *Preferences) Set(key, value string) {
+func (p *keyValueStore) GetFloat64(key string) float64 {
+	value, err := strconv.ParseFloat(p.Get(key), 64)
+	if err != nil {
+		logrus.WithError(err).Error("Cannot parse float64")
+	}
+	return value
+}
+
+func (p *keyValueStore) Set(key, value string) {
 	p.lock.Lock()
 	p.cache[key] = value
 	p.lock.Unlock()
 
 	if err := p.save(); err != nil {
-		log.Warn("Cannot save preferences: ", err)
+		logrus.WithError(err).Warn("Cannot save preferences")
 	}
 }
 
-func (p *Preferences) SetBool(key string, value bool) {
+func (p *keyValueStore) SetBool(key string, value bool) {
 	if value {
 		p.Set(key, "true")
 	} else {
@@ -122,6 +133,10 @@ func (p *Preferences) SetBool(key string, value bool) {
 	}
 }
 
-func (p *Preferences) SetInt(key string, value int) {
+func (p *keyValueStore) SetInt(key string, value int) {
 	p.Set(key, strconv.Itoa(value))
 }
+
+func (p *keyValueStore) SetFloat64(key string, value float64) {
+	p.Set(key, fmt.Sprintf("%v", value))
+}

internal/config/settings/kvs_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,7 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-package config
+package settings
 
 import (
 	"io/ioutil"
@@ -27,83 +27,79 @@ import (
 
 const testPrefFilePath = "/tmp/pref.json"
 
-func shutdownTestPreferences() {
-	_ = os.RemoveAll(testPrefFilePath)
-}
-
-func TestLoadNoPreferences(t *testing.T) {
-	pref := newTestEmptyPreferences(t)
+func TestLoadNoKeyValueStore(t *testing.T) {
+	pref := newTestEmptyKeyValueStore(t)
 	require.Equal(t, "", pref.Get("key"))
 }
 
-func TestLoadBadPreferences(t *testing.T) {
+func TestLoadBadKeyValueStore(t *testing.T) {
 	require.NoError(t, ioutil.WriteFile(testPrefFilePath, []byte("{\"key\":\"value"), 0700))
-	pref := NewPreferences(testPrefFilePath)
+	pref := newKeyValueStore(testPrefFilePath)
 	require.Equal(t, "", pref.Get("key"))
 }
 
-func TestPreferencesGet(t *testing.T) {
-	pref := newTestPreferences(t)
+func TestKeyValueStoreGet(t *testing.T) {
+	pref := newTestKeyValueStore(t)
 	require.Equal(t, "value", pref.Get("str"))
 	require.Equal(t, "42", pref.Get("int"))
 	require.Equal(t, "true", pref.Get("bool"))
 	require.Equal(t, "t", pref.Get("falseBool"))
 }
 
-func TestPreferencesGetInt(t *testing.T) {
-	pref := newTestPreferences(t)
+func TestKeyValueStoreGetInt(t *testing.T) {
+	pref := newTestKeyValueStore(t)
 	require.Equal(t, 0, pref.GetInt("str"))
 	require.Equal(t, 42, pref.GetInt("int"))
 	require.Equal(t, 0, pref.GetInt("bool"))
 	require.Equal(t, 0, pref.GetInt("falseBool"))
 }
 
-func TestPreferencesGetBool(t *testing.T) {
-	pref := newTestPreferences(t)
+func TestKeyValueStoreGetBool(t *testing.T) {
+	pref := newTestKeyValueStore(t)
 	require.Equal(t, false, pref.GetBool("str"))
 	require.Equal(t, false, pref.GetBool("int"))
 	require.Equal(t, true, pref.GetBool("bool"))
 	require.Equal(t, false, pref.GetBool("falseBool"))
 }
 
-func TestPreferencesSetDefault(t *testing.T) {
-	pref := newTestEmptyPreferences(t)
-	pref.SetDefault("key", "value")
-	pref.SetDefault("key", "othervalue")
+func TestKeyValueStoreSetDefault(t *testing.T) {
+	pref := newTestEmptyKeyValueStore(t)
+	pref.setDefault("key", "value")
+	pref.setDefault("key", "othervalue")
 	require.Equal(t, "value", pref.Get("key"))
 }
 
-func TestPreferencesSet(t *testing.T) {
-	pref := newTestEmptyPreferences(t)
+func TestKeyValueStoreSet(t *testing.T) {
+	pref := newTestEmptyKeyValueStore(t)
 	pref.Set("str", "value")
-	checkSavedPreferences(t, "{\"str\":\"value\"}")
+	checkSavedKeyValueStore(t, "{\n\t\"str\": \"value\"\n}")
 }
 
-func TestPreferencesSetInt(t *testing.T) {
-	pref := newTestEmptyPreferences(t)
+func TestKeyValueStoreSetInt(t *testing.T) {
+	pref := newTestEmptyKeyValueStore(t)
 	pref.SetInt("int", 42)
-	checkSavedPreferences(t, "{\"int\":\"42\"}")
+	checkSavedKeyValueStore(t, "{\n\t\"int\": \"42\"\n}")
 }
 
-func TestPreferencesSetBool(t *testing.T) {
-	pref := newTestEmptyPreferences(t)
+func TestKeyValueStoreSetBool(t *testing.T) {
+	pref := newTestEmptyKeyValueStore(t)
 	pref.SetBool("trueBool", true)
 	pref.SetBool("falseBool", false)
-	checkSavedPreferences(t, "{\"falseBool\":\"false\",\"trueBool\":\"true\"}")
+	checkSavedKeyValueStore(t, "{\n\t\"falseBool\": \"false\",\n\t\"trueBool\": \"true\"\n}")
 }
 
-func newTestEmptyPreferences(t *testing.T) *Preferences {
+func newTestEmptyKeyValueStore(t *testing.T) *keyValueStore {
 	require.NoError(t, os.RemoveAll(testPrefFilePath))
-	return NewPreferences(testPrefFilePath)
+	return newKeyValueStore(testPrefFilePath)
 }
 
-func newTestPreferences(t *testing.T) *Preferences {
+func newTestKeyValueStore(t *testing.T) *keyValueStore {
 	require.NoError(t, ioutil.WriteFile(testPrefFilePath, []byte("{\"str\":\"value\",\"int\":\"42\",\"bool\":\"true\",\"falseBool\":\"t\"}"), 0700))
-	return NewPreferences(testPrefFilePath)
+	return newKeyValueStore(testPrefFilePath)
 }
 
-func checkSavedPreferences(t *testing.T, expected string) {
+func checkSavedKeyValueStore(t *testing.T, expected string) {
 	data, err := ioutil.ReadFile(testPrefFilePath)
 	require.NoError(t, err)
-	require.Equal(t, expected+"\n", string(data))
+	require.Equal(t, expected, string(data))
 }

internal/config/settings/settings.go

@@ -0,0 +1,90 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package settings provides access to persistent user settings.
+package settings
+
+import (
+	"fmt"
+	"math/rand"
+	"path/filepath"
+	"time"
+)
+
+// Keys of preferences in JSON file.
+const (
+	FirstStartKey          = "first_time_start"
+	FirstStartGUIKey       = "first_time_start_gui"
+	LastHeartbeatKey       = "last_heartbeat"
+	APIPortKey             = "user_port_api"
+	IMAPPortKey            = "user_port_imap"
+	SMTPPortKey            = "user_port_smtp"
+	SMTPSSLKey             = "user_ssl_smtp"
+	AllowProxyKey          = "allow_proxy"
+	AutostartKey           = "autostart"
+	AutoUpdateKey          = "autoupdate"
+	CookiesKey             = "cookies"
+	ReportOutgoingNoEncKey = "report_outgoing_email_without_encryption"
+	LastVersionKey         = "last_used_version"
+	UpdateChannelKey       = "update_channel"
+	RolloutKey             = "rollout"
+	PreferredKeychainKey   = "preferred_keychain"
+)
+
+type Settings struct {
+	*keyValueStore
+
+	settingsPath string
+}
+
+func New(settingsPath string) *Settings {
+	s := &Settings{
+		keyValueStore: newKeyValueStore(filepath.Join(settingsPath, "prefs.json")),
+		settingsPath:  settingsPath,
+	}
+
+	s.setDefaultValues()
+
+	return s
+}
+
+const (
+	DefaultIMAPPort = "1143"
+	DefaultSMTPPort = "1025"
+	DefaultAPIPort  = "1042"
+)
+
+func (s *Settings) setDefaultValues() {
+	s.setDefault(FirstStartKey, "true")
+	s.setDefault(FirstStartGUIKey, "true")
+	s.setDefault(LastHeartbeatKey, fmt.Sprintf("%v", time.Now().YearDay()))
+	s.setDefault(AllowProxyKey, "true")
+	s.setDefault(AutostartKey, "true")
+	s.setDefault(AutoUpdateKey, "true")
+	s.setDefault(ReportOutgoingNoEncKey, "false")
+	s.setDefault(LastVersionKey, "")
+	s.setDefault(UpdateChannelKey, "")
+	s.setDefault(RolloutKey, fmt.Sprintf("%v", rand.Float64())) //nolint[gosec] G404 It is OK to use weak random number generator here
+	s.setDefault(PreferredKeychainKey, "")
+
+	s.setDefault(APIPortKey, DefaultAPIPort)
+	s.setDefault(IMAPPortKey, DefaultIMAPPort)
+	s.setDefault(SMTPPortKey, DefaultSMTPPort)
+
+	// By default, stick to STARTTLS. If the user uses catalina+applemail they'll have to change to SSL.
+	s.setDefault(SMTPSSLKey, "false")
+}

internal/config/tls/cert_store_darwin.go

@@ -0,0 +1,53 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tls
+
+import "os/exec"
+
+func addTrustedCert(certPath string) error {
+	return exec.Command( // nolint[gosec]
+		"/usr/bin/security",
+		"execute-with-privileges",
+		"/usr/bin/security",
+		"add-trusted-cert",
+		"-d",
+		"-r", "trustRoot",
+		"-p", "ssl",
+		"-k", "/Library/Keychains/System.keychain",
+		certPath,
+	).Run()
+}
+
+func removeTrustedCert(certPath string) error {
+	return exec.Command( // nolint[gosec]
+		"/usr/bin/security",
+		"execute-with-privileges",
+		"/usr/bin/security",
+		"remove-trusted-cert",
+		"-d",
+		certPath,
+	).Run()
+}
+
+func (t *TLS) InstallCerts() error {
+	return addTrustedCert(t.getTLSCertPath())
+}
+
+func (t *TLS) UninstallCerts() error {
+	return removeTrustedCert(t.getTLSCertPath())
+}

internal/config/tls/cert_store_linux.go

@@ -0,0 +1,26 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tls
+
+func (t *TLS) InstallCerts() error {
+	return nil // Linux doesn't have a root cert store.
+}
+
+func (t *TLS) UninstallCerts() error {
+	return nil // Linux doesn't have a root cert store.
+}

internal/config/tls/cert_store_windows.go

@@ -0,0 +1,26 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tls
+
+func (t *TLS) InstallCerts() error {
+	return nil // NOTE(GODT-986): Install certs to root cert store?
+}
+
+func (t *TLS) UninstallCerts() error {
+	return nil // NOTE(GODT-986): Uninstall certs from root cert store?
+}

internal/config/tls/tls.go

@@ -0,0 +1,155 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tls
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/tls"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
+	"fmt"
+	"math/big"
+	"net"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+type TLS struct {
+	settingsPath string
+}
+
+func New(settingsPath string) *TLS {
+	return &TLS{
+		settingsPath: settingsPath,
+	}
+}
+
+// NewTLSTemplate creates a new TLS template certificate with a random serial number.
+func NewTLSTemplate() (*x509.Certificate, error) {
+	serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to generate serial number")
+	}
+
+	return &x509.Certificate{
+		SerialNumber: serialNumber,
+		Subject: pkix.Name{
+			Country:            []string{"CH"},
+			Organization:       []string{"Proton Technologies AG"},
+			OrganizationalUnit: []string{"ProtonMail"},
+			CommonName:         "127.0.0.1",
+		},
+		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
+		BasicConstraintsValid: true,
+		IsCA:                  true,
+		IPAddresses:           []net.IP{net.ParseIP("127.0.0.1")},
+		NotBefore:             time.Now(),
+		NotAfter:              time.Now().Add(20 * 365 * 24 * time.Hour),
+	}, nil
+}
+
+var ErrTLSCertExpiresSoon = fmt.Errorf("TLS certificate will expire soon")
+
+// getTLSCertPath returns path to certificate; used for TLS servers (IMAP, SMTP).
+func (t *TLS) getTLSCertPath() string {
+	return filepath.Join(t.settingsPath, "cert.pem")
+}
+
+// getTLSKeyPath returns path to private key; used for TLS servers (IMAP, SMTP).
+func (t *TLS) getTLSKeyPath() string {
+	return filepath.Join(t.settingsPath, "key.pem")
+}
+
+// HasCerts returns whether TLS certs have been generated.
+func (t *TLS) HasCerts() bool {
+	if _, err := os.Stat(t.getTLSCertPath()); err != nil {
+		return false
+	}
+
+	if _, err := os.Stat(t.getTLSKeyPath()); err != nil {
+		return false
+	}
+
+	return true
+}
+
+// GenerateCerts generates certs from the given template.
+func (t *TLS) GenerateCerts(template *x509.Certificate) error {
+	priv, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return errors.Wrap(err, "failed to generate private key")
+	}
+
+	derBytes, err := x509.CreateCertificate(rand.Reader, template, template, &priv.PublicKey, priv)
+	if err != nil {
+		return errors.Wrap(err, "failed to create certificate")
+	}
+
+	certOut, err := os.Create(t.getTLSCertPath())
+	if err != nil {
+		return err
+	}
+	defer certOut.Close() // nolint[errcheck]
+
+	if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
+		return err
+	}
+
+	keyOut, err := os.OpenFile(t.getTLSKeyPath(), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	if err != nil {
+		return err
+	}
+	defer keyOut.Close() // nolint[errcheck]
+
+	return pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)})
+}
+
+// GetConfig tries to load TLS config or generate new one which is then returned.
+func (t *TLS) GetConfig() (*tls.Config, error) {
+	c, err := tls.LoadX509KeyPair(t.getTLSCertPath(), t.getTLSKeyPath())
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to load keypair")
+	}
+
+	c.Leaf, err = x509.ParseCertificate(c.Certificate[0])
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to parse certificate")
+	}
+
+	if time.Now().Add(31 * 24 * time.Hour).After(c.Leaf.NotAfter) {
+		return nil, ErrTLSCertExpiresSoon
+	}
+
+	caCertPool := x509.NewCertPool()
+	caCertPool.AddCert(c.Leaf)
+
+	// nolint[gosec]: We need to support older TLS versions for AppleMail and Outlook.
+	return &tls.Config{
+		Certificates: []tls.Certificate{c},
+		ServerName:   "127.0.0.1",
+		ClientAuth:   tls.VerifyClientCertIfGiven,
+		RootCAs:      caCertPool,
+		ClientCAs:    caCertPool,
+	}, nil
+}

internal/config/tls/tls_test.go

@@ -0,0 +1,77 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package tls
+
+import (
+	"io/ioutil"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetOldConfig(t *testing.T) {
+	dir, err := ioutil.TempDir("", "test-tls")
+	require.NoError(t, err)
+
+	// Create new tls object.
+	tls := New(dir)
+
+	// Create new TLS template.
+	tlsTemplate, err := NewTLSTemplate()
+	require.NoError(t, err)
+
+	// Make the template be an old key.
+	tlsTemplate.NotBefore = time.Now().Add(-365 * 24 * time.Hour)
+	tlsTemplate.NotAfter = time.Now()
+
+	// Generate the certs from the template.
+	require.NoError(t, tls.GenerateCerts(tlsTemplate))
+
+	// Generate the config from the certs -- it's going to expire soon so we don't want to use it.
+	_, err = tls.GetConfig()
+	require.Equal(t, err, ErrTLSCertExpiresSoon)
+}
+
+func TestGetValidConfig(t *testing.T) {
+	dir, err := ioutil.TempDir("", "test-tls")
+	require.NoError(t, err)
+
+	// Create new tls object.
+	tls := New(dir)
+
+	// Create new TLS template.
+	tlsTemplate, err := NewTLSTemplate()
+	require.NoError(t, err)
+
+	// Make the template be a new key.
+	tlsTemplate.NotBefore = time.Now()
+	tlsTemplate.NotAfter = time.Now().Add(2 * 365 * 24 * time.Hour)
+
+	// Generate the certs from the template.
+	require.NoError(t, tls.GenerateCerts(tlsTemplate))
+
+	// Generate the config from the certs -- it's not going to expire soon so we want to use it.
+	config, err := tls.GetConfig()
+	require.NoError(t, err)
+	require.Equal(t, len(config.Certificates), 1)
+
+	// Check the cert is valid.
+	now, notValidAfter := time.Now(), config.Certificates[0].Leaf.NotAfter
+	require.False(t, now.After(notValidAfter), "new certificate expected to be valid at %v but have valid until %v", now, notValidAfter)
+}

internal/config/useragent/platform.go

@@ -0,0 +1,61 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package useragent
+
+import (
+	"os/exec"
+	"runtime"
+	"strings"
+
+	"github.com/Masterminds/semver/v3"
+)
+
+// IsCatalinaOrNewer checks whether the host is MacOS Catalina 10.15.x or higher.
+func IsCatalinaOrNewer() bool {
+	return isThisDarwinNewerOrEqual(getMinCatalina())
+}
+
+// IsBigSurOrNewer checks whether the host is MacOS BigSur 10.16.x or higher.
+func IsBigSurOrNewer() bool {
+	return isThisDarwinNewerOrEqual(getMinBigSur())
+}
+
+func getMinCatalina() *semver.Version { return semver.MustParse("10.15.0") }
+func getMinBigSur() *semver.Version   { return semver.MustParse("10.16.0") }
+
+func isThisDarwinNewerOrEqual(minVersion *semver.Version) bool {
+	if runtime.GOOS != "darwin" {
+		return false
+	}
+
+	rawVersion, err := exec.Command("sw_vers", "-productVersion").Output()
+	if err != nil {
+		return false
+	}
+
+	return isVersionEqualOrNewer(minVersion, strings.TrimSpace(string(rawVersion)))
+}
+
+// isVersionEqualOrNewer is separated to be able to run test on other than darwin.
+func isVersionEqualOrNewer(minVersion *semver.Version, rawVersion string) bool {
+	semVersion, err := semver.NewVersion(rawVersion)
+	if err != nil {
+		return false
+	}
+	return semVersion.GreaterThan(minVersion) || semVersion.Equal(minVersion)
+}

internal/config/useragent/platform_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -34,10 +34,31 @@ func TestIsVersionCatalinaOrNewer(t *testing.T) {
 		{"10.15.0"}:  true,
 		{"10.16.0"}:  true,
 		{"11.0.0"}:   true,
+		{"11.1"}:     true,
 	}
 
 	for args, exp := range testData {
-		got := isVersionCatalinaOrNewer(args.version)
+		got := isVersionEqualOrNewer(getMinCatalina(), args.version)
+		assert.Equal(t, exp, got, "version %v", args.version)
+	}
+}
+
+func TestIsVersionBigSurOrNewer(t *testing.T) {
+	testData := map[struct{ version string }]bool{
+		{""}:         false,
+		{"9.0.0"}:    false,
+		{"9.15.0"}:   false,
+		{"10.13.0"}:  false,
+		{"10.14.0"}:  false,
+		{"10.14.99"}: false,
+		{"10.15.0"}:  false,
+		{"10.16.0"}:  true,
+		{"11.0.0"}:   true,
+		{"11.1"}:     true,
+	}
+
+	for args, exp := range testData {
+		got := isVersionEqualOrNewer(getMinBigSur(), args.version)
 		assert.Equal(t, exp, got, "version %v", args.version)
 	}
 }

internal/config/useragent/useragent.go

@@ -0,0 +1,59 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package useragent
+
+import (
+	"fmt"
+	"regexp"
+	"runtime"
+)
+
+type UserAgent struct {
+	client, platform string
+}
+
+func New() *UserAgent {
+	return &UserAgent{
+		client:   "",
+		platform: runtime.GOOS,
+	}
+}
+
+func (ua *UserAgent) SetClient(name, version string) {
+	ua.client = fmt.Sprintf("%v/%v", name, regexp.MustCompile(`(.*) \((.*)\)`).ReplaceAllString(version, "$1-$2"))
+}
+
+func (ua *UserAgent) HasClient() bool {
+	return ua.client != ""
+}
+
+func (ua *UserAgent) SetPlatform(platform string) {
+	ua.platform = platform
+}
+
+func (ua *UserAgent) String() string {
+	var client string
+
+	if ua.client != "" {
+		client = ua.client
+	} else {
+		client = "NoClient/0.0.1"
+	}
+
+	return fmt.Sprintf("%v (%v)", client, ua.platform)
+}

internal/config/useragent/useragent_test.go

@@ -0,0 +1,86 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package useragent
+
+import (
+	"fmt"
+	"runtime"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestUserAgent(t *testing.T) {
+	tests := []struct {
+		name, version, platform string
+		want                    string
+	}{
+		// No name/version, no platform.
+		{
+			want: fmt.Sprintf("NoClient/0.0.1 (%v)", runtime.GOOS),
+		},
+
+		// No name/version, with platform.
+		{
+			platform: "macOS 10.15",
+			want:     "NoClient/0.0.1 (macOS 10.15)",
+		},
+
+		// With name/version, with platform.
+		{
+			name:     "Mac OS X Mail",
+			version:  "1.0.0",
+			platform: "macOS 10.15",
+			want:     "Mac OS X Mail/1.0.0 (macOS 10.15)",
+		},
+
+		// With name/version, with platform.
+		{
+			name:     "Mac OS X Mail",
+			version:  "13.4 (3608.120.23.2.4)",
+			platform: "macOS 10.15",
+			want:     "Mac OS X Mail/13.4-3608.120.23.2.4 (macOS 10.15)",
+		},
+
+		// With name/version, with platform.
+		{
+			name:     "Thunderbird",
+			version:  "78.6.1",
+			platform: "Windows 10 (10.0)",
+			want:     "Thunderbird/78.6.1 (Windows 10 (10.0))",
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+
+		t.Run(test.want, func(t *testing.T) {
+			ua := New()
+
+			if test.name != "" && test.version != "" {
+				ua.SetClient(test.name, test.version)
+			}
+
+			if test.platform != "" {
+				ua.SetPlatform(test.platform)
+			}
+
+			assert.Equal(t, test.want, ua.String())
+		})
+	}
+}

internal/constants/constants.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.Bridge.
 //
@@ -18,6 +18,10 @@
 // Package constants contains variables that are set via ldflags during build.
 package constants
 
+import "fmt"
+
+const VendorName = "protonmail"
+
 // nolint[gochecknoglobals]
 var (
 	// Version of the build.
@@ -32,9 +36,6 @@ var (
 	// DSNSentry client keys to be able to report crashes to Sentry.
 	DSNSentry = ""
 
-	// LongVersion is derived from Version and Revision.
-	LongVersion = Version + " (" + Revision + ")"
-
 	// BuildVersion is derived from LongVersion and BuildTime.
-	BuildVersion = LongVersion + " " + BuildTime
+	BuildVersion = fmt.Sprintf("%v (%v) %v", Version, Revision, BuildTime)
 )

internal/constants/update_default.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// +build !build_qa
+
+package constants
+
+import "time"
+
+// nolint[gochecknoglobals]
+var (
+	// UpdateCheckInterval defines how often we check for new version
+	UpdateCheckInterval = time.Hour //nolint[gochecknoglobals]
+)

internal/constants/update_qa.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// +build build_qa
+
+package constants
+
+import "time"
+
+// nolint[gochecknoglobals]
+var (
+	// UpdateCheckInterval defines how often we check for new version
+	UpdateCheckInterval = time.Duration(5 * time.Minute)
+)

internal/cookies/jar.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -19,46 +19,41 @@
 package cookies
 
 import (
+	"encoding/json"
+	"fmt"
 	"net/http"
 	"net/http/cookiejar"
 	"net/url"
 	"sync"
+	"time"
 
-	"github.com/sirupsen/logrus"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 )
 
+type cookiesByHost map[string][]*http.Cookie
+
 // Jar implements http.CookieJar by wrapping the standard library's cookiejar.Jar.
 // The jar uses a pantry to load cookies at startup and save cookies when set.
 type Jar struct {
-	jar    *cookiejar.Jar
-	pantry *pantry
-	locker sync.Locker
+	jar      *cookiejar.Jar
+	settings *settings.Settings
+	cookies  cookiesByHost
+	locker   sync.Locker
 }
 
-type GetterSetter interface {
-	Get(string) string
-	Set(string, string)
-}
-
-func NewCookieJar(gs GetterSetter) (*Jar, error) {
-	pantry := &pantry{gs: gs}
-
-	if err := pantry.discardExpiredCookies(); err != nil {
-		return nil, err
-	}
-
-	cookies, err := pantry.loadFromJSON()
-	if err != nil {
-		return nil, err
-	}
-
+func NewCookieJar(s *settings.Settings) (*Jar, error) {
 	jar, err := cookiejar.New(nil)
 	if err != nil {
 		return nil, err
 	}
 
-	for rawURL, cookies := range cookies {
-		url, err := url.Parse(rawURL)
+	cookiesByHost, err := loadCookies(s)
+	if err != nil {
+		return nil, err
+	}
+
+	for host, cookies := range cookiesByHost {
+		url, err := url.Parse(host)
 		if err != nil {
 			continue
 		}
@@ -67,9 +62,10 @@ func NewCookieJar(gs GetterSetter) (*Jar, error) {
 	}
 
 	return &Jar{
-		jar:    jar,
-		pantry: pantry,
-		locker: &sync.Mutex{},
+		jar:      jar,
+		settings: s,
+		cookies:  cookiesByHost,
+		locker:   &sync.Mutex{},
 	}, nil
 }
 
@@ -79,9 +75,13 @@ func (j *Jar) SetCookies(u *url.URL, cookies []*http.Cookie) {
 
 	j.jar.SetCookies(u, cookies)
 
-	if err := j.pantry.persistCookies(u.Scheme+"://"+u.Host, cookies); err != nil {
-		logrus.WithError(err).Warn("Failed to persist cookie")
+	for _, cookie := range cookies {
+		if cookie.MaxAge > 0 {
+			cookie.Expires = time.Now().Add(time.Duration(cookie.MaxAge) * time.Second)
+		}
 	}
+
+	j.cookies[fmt.Sprintf("%v://%v", u.Scheme, u.Host)] = cookies
 }
 
 func (j *Jar) Cookies(u *url.URL) []*http.Cookie {
@@ -90,3 +90,54 @@ func (j *Jar) Cookies(u *url.URL) []*http.Cookie {
 
 	return j.jar.Cookies(u)
 }
+
+// PersistCookies persists the cookies to disk.
+func (j *Jar) PersistCookies() error {
+	j.locker.Lock()
+	defer j.locker.Unlock()
+
+	rawCookies, err := json.Marshal(j.cookies)
+	if err != nil {
+		return err
+	}
+
+	j.settings.Set(settings.CookiesKey, string(rawCookies))
+
+	return nil
+}
+
+// loadCookies loads all non-expired cookies from disk.
+func loadCookies(s *settings.Settings) (cookiesByHost, error) {
+	rawCookies := s.Get(settings.CookiesKey)
+
+	if rawCookies == "" {
+		return make(cookiesByHost), nil
+	}
+
+	var cookiesByHost cookiesByHost
+
+	if err := json.Unmarshal([]byte(rawCookies), &cookiesByHost); err != nil {
+		return nil, err
+	}
+
+	for host, cookies := range cookiesByHost {
+		if validCookies := discardExpiredCookies(cookies); len(validCookies) > 0 {
+			cookiesByHost[host] = validCookies
+		}
+	}
+
+	return cookiesByHost, nil
+}
+
+// discardExpiredCookies returns all the given cookies which aren't expired.
+func discardExpiredCookies(cookies []*http.Cookie) []*http.Cookie {
+	var validCookies []*http.Cookie
+
+	for _, cookie := range cookies {
+		if cookie.Expires.After(time.Now()) {
+			validCookies = append(validCookies, cookie)
+		}
+	}
+
+	return validCookies
+}

internal/cookies/jar_test.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -18,11 +18,13 @@
 package cookies
 
 import (
+	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"testing"
 	"time"
 
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -35,7 +37,7 @@ func TestJarGetSet(t *testing.T) {
 	})
 	defer ts.Close()
 
-	client := getClientWithJar(t, make(testGetterSetter))
+	client, _ := getClientWithJar(t, newFakeSettings())
 
 	// Hit a server that sets some cookies.
 	setRes, err := client.Get(ts.URL + "/set")
@@ -61,10 +63,10 @@ func TestJarLoad(t *testing.T) {
 	defer ts.Close()
 
 	// This will be our "persistent storage" from which the cookie jar should load cookies.
-	gs := make(testGetterSetter)
+	s := newFakeSettings()
 
 	// This client saves cookies to persistent storage.
-	oldClient := getClientWithJar(t, gs)
+	oldClient, jar := getClientWithJar(t, s)
 
 	// Hit a server that sets some cookies.
 	setRes, err := oldClient.Get(ts.URL + "/set")
@@ -73,8 +75,11 @@ func TestJarLoad(t *testing.T) {
 	}
 	require.NoError(t, setRes.Body.Close())
 
+	// Save the cookies.
+	require.NoError(t, jar.PersistCookies())
+
 	// This client loads cookies from persistent storage.
-	newClient := getClientWithJar(t, gs)
+	newClient, _ := getClientWithJar(t, s)
 
 	// Hit a server that checks the cookies are there.
 	getRes, err := newClient.Get(ts.URL + "/get")
@@ -93,10 +98,10 @@ func TestJarExpiry(t *testing.T) {
 	defer ts.Close()
 
 	// This will be our "persistent storage" from which the cookie jar should load cookies.
-	gs := make(testGetterSetter)
+	s := newFakeSettings()
 
 	// This client saves cookies to persistent storage.
-	oldClient := getClientWithJar(t, gs)
+	oldClient, jar1 := getClientWithJar(t, s)
 
 	// Hit a server that sets some cookies.
 	setRes, err := oldClient.Get(ts.URL + "/set")
@@ -105,15 +110,21 @@ func TestJarExpiry(t *testing.T) {
 	}
 	require.NoError(t, setRes.Body.Close())
 
+	// Save the cookies.
+	require.NoError(t, jar1.PersistCookies())
+
 	// Wait until the second cookie expires.
 	time.Sleep(2 * time.Second)
 
 	// Load a client, which will clear out expired cookies.
-	_ = getClientWithJar(t, gs)
+	_, jar2 := getClientWithJar(t, s)
 
-	assert.Contains(t, gs["cookies"], "TestName1")
-	assert.NotContains(t, gs["cookies"], "TestName2")
-	assert.Contains(t, gs["cookies"], "TestName3")
+	// Save the cookies (expired ones were cleared out).
+	require.NoError(t, jar2.PersistCookies())
+
+	assert.Contains(t, s.Get(settings.CookiesKey), "TestName1")
+	assert.NotContains(t, s.Get(settings.CookiesKey), "TestName2")
+	assert.Contains(t, s.Get(settings.CookiesKey), "TestName3")
 }
 
 type testCookie struct {
@@ -121,11 +132,11 @@ type testCookie struct {
 	maxAge      int
 }
 
-func getClientWithJar(t *testing.T, gs GetterSetter) *http.Client {
-	jar, err := NewCookieJar(gs)
+func getClientWithJar(t *testing.T, s *settings.Settings) (*http.Client, *Jar) {
+	jar, err := NewCookieJar(s)
 	require.NoError(t, err)
 
-	return &http.Client{Jar: jar}
+	return &http.Client{Jar: jar}, jar
 }
 
 func getTestServer(t *testing.T, wantCookies []testCookie) *httptest.Server {
@@ -157,12 +168,12 @@ func getTestServer(t *testing.T, wantCookies []testCookie) *httptest.Server {
 	return httptest.NewServer(mux)
 }
 
-type testGetterSetter map[string]string
+// newFakeSettings creates a temporary folder for files.
+func newFakeSettings() *settings.Settings {
+	dir, err := ioutil.TempDir("", "test-settings")
+	if err != nil {
+		panic(err)
+	}
 
-func (p testGetterSetter) Set(key, value string) {
-	p[key] = value
-}
-
-func (p testGetterSetter) Get(key string) string {
-	return p[key]
+	return settings.New(dir)
 }

internal/cookies/pantry.go

@@ -1,100 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-package cookies
-
-import (
-	"encoding/json"
-	"net/http"
-	"time"
-
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
-)
-
-// pantry persists and loads cookies to some persistent storage location.
-type pantry struct {
-	gs GetterSetter
-}
-
-func (p *pantry) persistCookies(host string, cookies []*http.Cookie) error {
-	for _, cookie := range cookies {
-		if cookie.MaxAge > 0 {
-			cookie.Expires = time.Now().Add(time.Duration(cookie.MaxAge) * time.Second)
-		}
-	}
-
-	cookiesByHost, err := p.loadFromJSON()
-	if err != nil {
-		return err
-	}
-
-	cookiesByHost[host] = cookies
-
-	return p.saveToJSON(cookiesByHost)
-}
-
-func (p *pantry) discardExpiredCookies() error {
-	cookiesByHost, err := p.loadFromJSON()
-	if err != nil {
-		return err
-	}
-
-	for host, cookies := range cookiesByHost {
-		cookiesByHost[host] = discardExpiredCookies(cookies)
-	}
-
-	return p.saveToJSON(cookiesByHost)
-}
-
-type cookiesByHost map[string][]*http.Cookie
-
-func (p *pantry) loadFromJSON() (cookiesByHost, error) {
-	b := p.gs.Get(preferences.CookiesKey)
-
-	if b == "" {
-		return make(cookiesByHost), nil
-	}
-
-	var cookies cookiesByHost
-
-	if err := json.Unmarshal([]byte(b), &cookies); err != nil {
-		return nil, err
-	}
-
-	return cookies, nil
-}
-
-func (p *pantry) saveToJSON(cookies cookiesByHost) error {
-	b, err := json.Marshal(cookies)
-	if err != nil {
-		return err
-	}
-
-	p.gs.Set(preferences.CookiesKey, string(b))
-
-	return nil
-}
-
-func discardExpiredCookies(cookies []*http.Cookie) (validCookies []*http.Cookie) {
-	for _, cookie := range cookies {
-		if cookie.Expires.After(time.Now()) {
-			validCookies = append(validCookies, cookie)
-		}
-	}
-
-	return
-}

internal/crash/actions.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,42 +15,28 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-package message
+package crash
 
 import (
-	"net/mail"
-	"strings"
+	"fmt"
 
-	"github.com/emersion/go-imap"
+	"github.com/0xAX/notificator"
 )
 
-func getAddresses(addrs []*mail.Address) (imapAddrs []*imap.Address) {
-	for _, a := range addrs {
-		if a == nil {
-			continue
-		}
-
-		parts := strings.SplitN(a.Address, "@", 2)
-		if len(parts) != 2 {
-			continue
-		}
-
-		imapAddrs = append(imapAddrs, &imap.Address{
-			PersonalName: a.Name,
-			MailboxName:  parts[0],
-			HostName:     parts[1],
+// ShowErrorNotification shows a system notification that the app with the given appName has crashed.
+// NOTE: Icons shouldn't be hardcoded.
+func ShowErrorNotification(appName string) RecoveryAction {
+	return func(r interface{}) error {
+		notify := notificator.New(notificator.Options{
+			DefaultIcon: "../frontend/ui/icon/icon.png",
+			AppName:     appName,
 		})
-	}
 
-	return
-}
-
-func formatAddressList(addrs []*mail.Address) (s string) {
-	for i, addr := range addrs {
-		if i > 0 {
-			s += ", "
-		}
-		s += addr.String()
+		return notify.Push(
+			"Fatal Error",
+			fmt.Sprintf("%v has encountered a fatal error.", appName),
+			"/frontend/icon/icon.png",
+			notificator.UR_CRITICAL,
+		)
 	}
-	return
 }

internal/crash/handler.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -15,35 +15,40 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
-// +build !build_qa
-
-package config
+// Package crash implements a crash handler with configurable recovery actions.
+package crash
 
 import (
+	"github.com/ProtonMail/proton-bridge/internal/sentry"
 	"github.com/sirupsen/logrus"
 )
 
-func getLogLevelAndFile(levelFlag string) (level logrus.Level, useFile bool) {
-	useFile = true
-	switch levelFlag {
-	case "panic":
-		level = logrus.PanicLevel
-	case "fatal":
-		level = logrus.FatalLevel
-	case "error":
-		level = logrus.ErrorLevel
-	case "warn":
-		level = logrus.WarnLevel
-	case "info":
-		level = logrus.InfoLevel
-	case "debug", "debug-client", "debug-server", "debug-client-json", "debug-server-json":
-		level = logrus.DebugLevel
-		useFile = false
-	case "trace":
-		level = logrus.TraceLevel
-		useFile = false
-	default:
-		level = logrus.InfoLevel
-	}
-	return
+type RecoveryAction func(interface{}) error
+
+type Handler struct {
+	actions []RecoveryAction
+}
+
+func NewHandler(actions ...RecoveryAction) *Handler {
+	return &Handler{actions: actions}
+}
+
+func (h *Handler) AddRecoveryAction(action RecoveryAction) *Handler {
+	h.actions = append(h.actions, action)
+	return h
+}
+
+func (h *Handler) HandlePanic() {
+	sentry.SkipDuringUnwind()
+
+	r := recover()
+	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

@@ -0,0 +1,58 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package crash
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestHandler(t *testing.T) {
+	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.
+		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 h.HandlePanic()
+
+	panic("thing")
+}

internal/events/events.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -27,6 +27,7 @@ import (
 // Constants of events used by the event listener in bridge.
 const (
 	ErrorEvent                   = "error"
+	CredentialsErrorEvent        = "credentialsError"
 	CloseConnectionEvent         = "closeConnection"
 	LogoutEvent                  = "logout"
 	AddressChangedEvent          = "addressChanged"
@@ -40,7 +41,6 @@ const (
 	NoActiveKeyForRecipientEvent = "noActiveKeyForRecipient"
 	UpgradeApplicationEvent      = "upgradeApplication"
 	TLSCertIssue                 = "tlsCertPinningIssue"
-	IMAPTLSBadCert               = "imapTLSBadCert"
 
 	// LogoutEventTimeout is the minimum time to permit between logout events being sent.
 	LogoutEventTimeout = 3 * time.Minute
@@ -49,6 +49,9 @@ const (
 // SetupEvents specific to event type and data.
 func SetupEvents(listener listener.Listener) {
 	listener.SetLimit(LogoutEvent, LogoutEventTimeout)
-	listener.SetBuffer(TLSCertIssue)
 	listener.SetBuffer(ErrorEvent)
+	listener.SetBuffer(CredentialsErrorEvent)
+	listener.SetBuffer(InternetOffEvent)
+	listener.SetBuffer(UpgradeApplicationEvent)
+	listener.SetBuffer(TLSCertIssue)
 }

internal/frontend/autoconfig/applemail.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -28,9 +28,14 @@ import (
 	"strings"
 	"time"
 
-	mobileconfig "github.com/ProtonMail/go-apple-mobileconfig"
 	"github.com/ProtonMail/proton-bridge/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/internal/config/useragent"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
+	"github.com/ProtonMail/proton-bridge/pkg/mobileconfig"
+)
+
+const (
+	bigSurPreferncesPane = "/System/Library/PreferencePanes/Profiles.prefPane"
 )
 
 func init() { //nolint[gochecknoinit]
@@ -43,7 +48,22 @@ func (c *appleMail) Name() string {
 	return "Apple Mail"
 }
 
-func (c *appleMail) Configure(imapPort, smtpPort int, imapSSL, smtpSSL bool, user types.User, addressIndex int) error { //nolint[funlen]
+func (c *appleMail) Configure(imapPort, smtpPort int, imapSSL, smtpSSL bool, user types.User, addressIndex int) error {
+	mc := prepareMobileConfig(imapPort, smtpPort, imapSSL, smtpSSL, user, addressIndex)
+
+	confPath, err := saveConfigTemporarily(mc)
+	if err != nil {
+		return err
+	}
+
+	if useragent.IsBigSurOrNewer() {
+		return exec.Command("open", bigSurPreferncesPane, confPath).Run() //nolint[gosec] G204: open command is safe, mobileconfig is generated by us
+	}
+
+	return exec.Command("open", confPath).Run() //nolint[gosec] G204: open command is safe, mobileconfig is generated by us
+}
+
+func prepareMobileConfig(imapPort, smtpPort int, imapSSL, smtpSSL bool, user types.User, addressIndex int) *mobileconfig.Config {
 	var addresses string
 	var displayName string
 
@@ -62,28 +82,30 @@ func (c *appleMail) Configure(imapPort, smtpPort int, imapSSL, smtpSSL bool, use
 
 	timestamp := strconv.FormatInt(time.Now().Unix(), 10)
 
-	mc := &mobileconfig.Config{
+	return &mobileconfig.Config{
 		EmailAddress: addresses,
 		DisplayName:  displayName,
 		Identifier:   "protonmail " + displayName + timestamp,
-		Imap: &mobileconfig.Imap{
+		IMAP: &mobileconfig.IMAP{
 			Hostname: bridge.Host,
 			Port:     imapPort,
-			Tls:      imapSSL,
+			TLS:      imapSSL,
 			Username: displayName,
 			Password: user.GetBridgePassword(),
 		},
-		Smtp: &mobileconfig.Smtp{
+		SMTP: &mobileconfig.SMTP{
 			Hostname: bridge.Host,
 			Port:     smtpPort,
-			Tls:      smtpSSL,
+			TLS:      smtpSSL,
 			Username: displayName,
 		},
 	}
+}
 
+func saveConfigTemporarily(mc *mobileconfig.Config) (fname string, err error) {
 	dir, err := ioutil.TempDir("", "protonmail-autoconfig")
 	if err != nil {
-		return err
+		return
 	}
 
 	// Make sure the temporary file is deleted.
@@ -93,16 +115,17 @@ func (c *appleMail) Configure(imapPort, smtpPort int, imapSSL, smtpSSL bool, use
 	})()
 
 	// Make sure the file is only readable for the current user.
-	f, err := os.OpenFile(filepath.Join(dir, "protonmail.mobileconfig"), os.O_RDWR|os.O_CREATE, 0600)
+	fname = filepath.Clean(filepath.Join(dir, "protonmail.mobileconfig"))
+	f, err := os.OpenFile(fname, os.O_RDWR|os.O_CREATE, 0600)
 	if err != nil {
-		return err
+		return
 	}
 
-	if err := mc.WriteTo(f); err != nil {
+	if err = mc.WriteOut(f); err != nil {
 		_ = f.Close()
-		return err
+		return
 	}
 	_ = f.Close()
 
-	return exec.Command("open", f.Name()).Run() // nolint[gosec]
+	return
 }

internal/frontend/autoconfig/autoconfig.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/cli-ie/account_utils.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/cli-ie/accounts.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -18,6 +18,7 @@
 package cliie
 
 import (
+	"context"
 	"strings"
 
 	"github.com/abiosoft/ishell"
@@ -25,7 +26,7 @@ import (
 
 func (f *frontendCLI) listAccounts(c *ishell.Context) {
 	spacing := "%-2d: %-20s (%-15s, %-15s)\n"
-	f.Printf(bold(strings.Replace(spacing, "d", "s", -1)), "#", "account", "status", "address mode")
+	f.Printf(bold(strings.ReplaceAll(spacing, "d", "s")), "#", "account", "status", "address mode")
 	for idx, user := range f.ie.GetUsers() {
 		connected := "disconnected"
 		if user.IsConnected() {
@@ -79,7 +80,7 @@ func (f *frontendCLI) loginAccount(c *ishell.Context) { // nolint[funlen]
 			return
 		}
 
-		err = client.Auth2FA(twoFactor, auth)
+		err = client.Auth2FA(context.Background(), twoFactor)
 		if err != nil {
 			f.processAPIError(err)
 			return

internal/frontend/cli-ie/frontend.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -21,7 +21,8 @@ package cliie
 import (
 	"github.com/ProtonMail/proton-bridge/internal/events"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
 	"github.com/ProtonMail/proton-bridge/pkg/listener"
 
 	"github.com/abiosoft/ishell"
@@ -35,31 +36,33 @@ var (
 type frontendCLI struct {
 	*ishell.Shell
 
-	config        *config.Config
+	locations     *locations.Locations
 	eventListener listener.Listener
-	updates       types.Updater
+	updater       types.Updater
 	ie            types.ImportExporter
 
-	appRestart bool
+	restarter types.Restarter
 }
 
 // New returns a new CLI frontend configured with the given options.
 func New( //nolint[funlen]
 	panicHandler types.PanicHandler,
-	config *config.Config,
+
+	locations *locations.Locations,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
 	ie types.ImportExporter,
+	restarter types.Restarter,
 ) *frontendCLI { //nolint[golint]
 	fe := &frontendCLI{
 		Shell: ishell.New(),
 
-		config:        config,
+		locations:     locations,
 		eventListener: eventListener,
-		updates:       updates,
+		updater:       updater,
 		ie:            ie,
 
-		appRestart: false,
+		restarter: restarter,
 	}
 
 	// Clear commands.
@@ -81,11 +84,6 @@ func New( //nolint[funlen]
 		Aliases: []string{"u", "version", "v"},
 		Func:    fe.checkUpdates,
 	})
-	checkCmd.AddCmd(&ishell.Cmd{Name: "internet",
-		Help:    "check internet connection. (aliases: i, conn, connection)",
-		Aliases: []string{"i", "con", "connection"},
-		Func:    fe.checkInternetConnection,
-	})
 	fe.AddCmd(checkCmd)
 
 	// Print info commands.
@@ -99,11 +97,6 @@ func New( //nolint[funlen]
 		Aliases: []string{"man"},
 		Func:    fe.printManual,
 	})
-	fe.AddCmd(&ishell.Cmd{Name: "release-notes",
-		Help:    "print release notes. (aliases: notes, fixed-bugs, bugs, ver, version)",
-		Aliases: []string{"notes", "fixed-bugs", "bugs", "ver", "version"},
-		Func:    fe.printLocalReleaseNotes,
-	})
 	fe.AddCmd(&ishell.Cmd{Name: "credits",
 		Help: "print used resources.",
 		Func: fe.printCredits,
@@ -175,22 +168,23 @@ func New( //nolint[funlen]
 		defer panicHandler.HandlePanic()
 		fe.watchEvents()
 	}()
-	fe.eventListener.RetryEmit(events.TLSCertIssue)
-	fe.eventListener.RetryEmit(events.ErrorEvent)
 	return fe
 }
 
 func (f *frontendCLI) watchEvents() {
-	errorCh := f.getEventChannel(events.ErrorEvent)
-	internetOffCh := f.getEventChannel(events.InternetOffEvent)
-	internetOnCh := f.getEventChannel(events.InternetOnEvent)
-	addressChangedLogoutCh := f.getEventChannel(events.AddressChangedLogoutEvent)
-	logoutCh := f.getEventChannel(events.LogoutEvent)
-	certIssue := f.getEventChannel(events.TLSCertIssue)
+	errorCh := f.eventListener.ProvideChannel(events.ErrorEvent)
+	credentialsErrorCh := f.eventListener.ProvideChannel(events.CredentialsErrorEvent)
+	internetOffCh := f.eventListener.ProvideChannel(events.InternetOffEvent)
+	internetOnCh := f.eventListener.ProvideChannel(events.InternetOnEvent)
+	addressChangedLogoutCh := f.eventListener.ProvideChannel(events.AddressChangedLogoutEvent)
+	logoutCh := f.eventListener.ProvideChannel(events.LogoutEvent)
+	certIssue := f.eventListener.ProvideChannel(events.TLSCertIssue)
 	for {
 		select {
 		case errorDetails := <-errorCh:
 			f.Println("Import-Export failed:", errorDetails)
+		case <-credentialsErrorCh:
+			f.notifyCredentialsError()
 		case <-internetOffCh:
 			f.notifyInternetOff()
 		case <-internetOnCh:
@@ -209,24 +203,8 @@ func (f *frontendCLI) watchEvents() {
 	}
 }
 
-func (f *frontendCLI) getEventChannel(event string) <-chan string {
-	ch := make(chan string)
-	f.eventListener.Add(event, ch)
-	return ch
-}
-
-// IsAppRestarting returns whether the app is currently set to restart.
-func (f *frontendCLI) IsAppRestarting() bool {
-	return f.appRestart
-}
-
 // Loop starts the frontend loop with an interactive shell.
-func (f *frontendCLI) Loop(credentialsError error) error {
-	if credentialsError != nil {
-		f.notifyCredentialsError()
-		return credentialsError
-	}
-
+func (f *frontendCLI) Loop() error {
 	f.Print(`
 Welcome to ProtonMail Import-Export app interactive shell
 
@@ -235,3 +213,12 @@ WARNING: The CLI is an experimental feature and does not yet cover all functiona
 	f.Run()
 	return nil
 }
+
+func (f *frontendCLI) NotifyManualUpdate(update updater.VersionInfo, canInstall bool) {
+	// NOTE: Save the update somewhere so that it can be installed when user chooses "install now".
+}
+
+func (f *frontendCLI) WaitUntilFrontendIsReady()              {}
+func (f *frontendCLI) SetVersion(version updater.VersionInfo) {}
+func (f *frontendCLI) NotifySilentUpdateInstalled()           {}
+func (f *frontendCLI) NotifySilentUpdateError(err error)      {}

internal/frontend/cli-ie/importexport.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -38,7 +38,7 @@ func (f *frontendCLI) importLocalMessages(c *ishell.Context) {
 		return
 	}
 
-	t, err := f.ie.GetLocalImporter(user.GetPrimaryAddress(), path)
+	t, err := f.ie.GetLocalImporter(user.Username(), user.GetPrimaryAddress(), path)
 	f.transfer(t, err, false, true)
 }
 
@@ -68,7 +68,7 @@ func (f *frontendCLI) importRemoteMessages(c *ishell.Context) {
 		return
 	}
 
-	t, err := f.ie.GetRemoteImporter(user.GetPrimaryAddress(), username, password, host, port)
+	t, err := f.ie.GetRemoteImporter(user.Username(), user.GetPrimaryAddress(), username, password, host, port)
 	f.transfer(t, err, false, true)
 }
 
@@ -81,7 +81,7 @@ func (f *frontendCLI) exportMessagesToEML(c *ishell.Context) {
 		return
 	}
 
-	t, err := f.ie.GetEMLExporter(user.GetPrimaryAddress(), path)
+	t, err := f.ie.GetEMLExporter(user.Username(), user.GetPrimaryAddress(), path)
 	f.transfer(t, err, true, false)
 }
 
@@ -94,7 +94,7 @@ func (f *frontendCLI) exportMessagesToMBOX(c *ishell.Context) {
 		return
 	}
 
-	t, err := f.ie.GetMBOXExporter(user.GetPrimaryAddress(), path)
+	t, err := f.ie.GetMBOXExporter(user.Username(), user.GetPrimaryAddress(), path)
 	f.transfer(t, err, true, false)
 }
 
@@ -184,9 +184,17 @@ func (f *frontendCLI) setTransferRules(t *transfer.Transfer) bool {
 }
 
 func (f *frontendCLI) printTransferProgress(progress *transfer.Progress) {
-	failed, imported, exported, added, total := progress.GetCounts()
-	if total != 0 {
-		f.Println(fmt.Sprintf("Progress update: %d (%d / %d) / %d, failed: %d", imported, exported, added, total, failed))
+	counts := progress.GetCounts()
+	if counts.Total != 0 {
+		f.Println(fmt.Sprintf(
+			"Progress update: %d (%d / %d) / %d, skipped: %d, failed: %d",
+			counts.Imported,
+			counts.Exported,
+			counts.Added,
+			counts.Total,
+			counts.Skipped,
+			counts.Failed,
+		))
 	}
 
 	if progress.IsPaused() {

internal/frontend/cli-ie/system.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -24,21 +24,17 @@ import (
 func (f *frontendCLI) restart(c *ishell.Context) {
 	if f.yesNoQuestion("Are you sure you want to restart the Import-Export app") {
 		f.Println("Restarting the Import-Export app...")
-		f.appRestart = true
+		f.restarter.SetToRestart()
 		f.Stop()
 	}
 }
 
-func (f *frontendCLI) checkInternetConnection(c *ishell.Context) {
-	if f.ie.CheckConnection() == nil {
-		f.Println("Internet connection is available.")
-	} else {
-		f.Println("Can not contact the server, please check your internet connection.")
-	}
-}
-
 func (f *frontendCLI) printLogDir(c *ishell.Context) {
-	f.Println("Log files are stored in\n\n ", f.config.GetLogDir())
+	if path, err := f.locations.ProvideLogsPath(); err != nil {
+		f.Println("Failed to determine location of log files")
+	} else {
+		f.Println("Log files are stored in\n\n ", path)
+	}
 }
 
 func (f *frontendCLI) printManual(c *ishell.Context) {

internal/frontend/cli-ie/updates.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -21,41 +21,11 @@ import (
 	"strings"
 
 	"github.com/ProtonMail/proton-bridge/internal/importexport"
-	"github.com/ProtonMail/proton-bridge/internal/updates"
 	"github.com/abiosoft/ishell"
 )
 
 func (f *frontendCLI) checkUpdates(c *ishell.Context) {
-	isUpToDate, latestVersionInfo, err := f.updates.CheckIsUpToDate()
-	if err != nil {
-		f.printAndLogError("Cannot retrieve version info: ", err)
-		f.checkInternetConnection(c)
-		return
-	}
-	if isUpToDate {
-		f.Println("Your version is up to date.")
-	} else {
-		f.notifyNeedUpgrade()
-		f.Println("")
-		f.printReleaseNotes(latestVersionInfo)
-	}
-}
-
-func (f *frontendCLI) printLocalReleaseNotes(c *ishell.Context) {
-	localVersion := f.updates.GetLocalVersion()
-	f.printReleaseNotes(localVersion)
-}
-
-func (f *frontendCLI) printReleaseNotes(versionInfo updates.VersionInfo) {
-	f.Println(bold("ProtonMail Import-Export app "+versionInfo.Version), "\n")
-	if versionInfo.ReleaseNotes != "" {
-		f.Println(bold("Release Notes"))
-		f.Println(versionInfo.ReleaseNotes)
-	}
-	if versionInfo.ReleaseFixedBugs != "" {
-		f.Println(bold("Fixed bugs"))
-		f.Println(versionInfo.ReleaseFixedBugs)
-	}
+	f.Println("Your version is up to date.")
 }
 
 func (f *frontendCLI) printCredits(c *ishell.Context) {

internal/frontend/cli-ie/utils.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -20,7 +20,7 @@ package cliie
 import (
 	"strings"
 
-	pmapi "github.com/ProtonMail/proton-bridge/pkg/pmapi"
+	"github.com/ProtonMail/proton-bridge/pkg/pmapi"
 	"github.com/fatih/color"
 )
 
@@ -71,7 +71,7 @@ func (f *frontendCLI) printAndLogError(args ...interface{}) {
 func (f *frontendCLI) processAPIError(err error) {
 	log.Warn("API error: ", err)
 	switch err {
-	case pmapi.ErrAPINotReachable:
+	case pmapi.ErrNoConnection:
 		f.notifyInternetOff()
 	case pmapi.ErrUpgradeApplication:
 		f.notifyNeedUpgrade()
@@ -93,10 +93,15 @@ func (f *frontendCLI) notifyLogout(address string) {
 }
 
 func (f *frontendCLI) notifyNeedUpgrade() {
-	f.Println("Please download and install the newest version of application from", f.updates.GetDownloadLink())
+	version, err := f.updater.Check()
+	if err != nil {
+		log.WithError(err).Error("Failed to notify need upgrade")
+		return
+	}
+	f.Println("Please download and install the newest version of application from", version.LandingPage)
 }
 
-func (f *frontendCLI) notifyCredentialsError() {
+func (f *frontendCLI) notifyCredentialsError() { // nolint[unused]
 	// Print in 80-column width.
 	f.Println("ProtonMail Import-Export app is not able to detect a supported password manager")
 	f.Println("(pass, gnome-keyring). Please install and set up a supported password manager")

internal/frontend/cli/account_utils.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/cli/accounts.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -18,17 +18,18 @@
 package cli
 
 import (
+	"context"
 	"strings"
 
 	"github.com/ProtonMail/proton-bridge/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
 	"github.com/abiosoft/ishell"
 )
 
 func (f *frontendCLI) listAccounts(c *ishell.Context) {
 	spacing := "%-2d: %-20s (%-15s, %-15s)\n"
-	f.Printf(bold(strings.Replace(spacing, "d", "s", -1)), "#", "account", "status", "address mode")
+	f.Printf(bold(strings.ReplaceAll(spacing, "d", "s")), "#", "account", "status", "address mode")
 	for idx, user := range f.bridge.GetUsers() {
 		connected := "disconnected"
 		if user.IsConnected() {
@@ -65,21 +66,21 @@ func (f *frontendCLI) showAccountInfo(c *ishell.Context) {
 
 func (f *frontendCLI) showAccountAddressInfo(user types.User, address string) {
 	smtpSecurity := "STARTTLS"
-	if f.preferences.GetBool(preferences.SMTPSSLKey) {
+	if f.settings.GetBool(settings.SMTPSSLKey) {
 		smtpSecurity = "SSL"
 	}
 	f.Println(bold("Configuration for " + address))
 	f.Printf("IMAP Settings\nAddress:   %s\nIMAP port: %d\nUsername:  %s\nPassword:  %s\nSecurity:  %s\n",
 		bridge.Host,
-		f.preferences.GetInt(preferences.IMAPPortKey),
+		f.settings.GetInt(settings.IMAPPortKey),
 		address,
 		user.GetBridgePassword(),
 		"STARTTLS",
 	)
 	f.Println("")
-	f.Printf("SMTP Settings\nAddress:   %s\nIMAP port: %d\nUsername:  %s\nPassword:  %s\nSecurity:  %s\n",
+	f.Printf("SMTP Settings\nAddress:   %s\nSMTP port: %d\nUsername:  %s\nPassword:  %s\nSecurity:  %s\n",
 		bridge.Host,
-		f.preferences.GetInt(preferences.SMTPPortKey),
+		f.settings.GetInt(settings.SMTPPortKey),
 		address,
 		user.GetBridgePassword(),
 		smtpSecurity,
@@ -126,7 +127,7 @@ func (f *frontendCLI) loginAccount(c *ishell.Context) { // nolint[funlen]
 			return
 		}
 
-		err = client.Auth2FA(twoFactor, auth)
+		err = client.Auth2FA(context.Background(), twoFactor)
 		if err != nil {
 			f.processAPIError(err)
 			return

internal/frontend/cli/frontend.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -19,9 +19,11 @@
 package cli
 
 import (
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/internal/events"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
 	"github.com/ProtonMail/proton-bridge/pkg/listener"
 
 	"github.com/abiosoft/ishell"
@@ -35,34 +37,36 @@ var (
 type frontendCLI struct {
 	*ishell.Shell
 
-	config        *config.Config
-	preferences   *config.Preferences
+	locations     *locations.Locations
+	settings      *settings.Settings
 	eventListener listener.Listener
-	updates       types.Updater
+	updater       types.Updater
 	bridge        types.Bridger
 
-	appRestart bool
+	restarter types.Restarter
 }
 
 // New returns a new CLI frontend configured with the given options.
 func New( //nolint[funlen]
 	panicHandler types.PanicHandler,
-	config *config.Config,
-	preferences *config.Preferences,
+
+	locations *locations.Locations,
+	settings *settings.Settings,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
 	bridge types.Bridger,
+	restarter types.Restarter,
 ) *frontendCLI { //nolint[golint]
 	fe := &frontendCLI{
 		Shell: ishell.New(),
 
-		config:        config,
-		preferences:   preferences,
+		locations:     locations,
+		settings:      settings,
 		eventListener: eventListener,
-		updates:       updates,
+		updater:       updater,
 		bridge:        bridge,
 
-		appRestart: false,
+		restarter: restarter,
 	}
 
 	// Clear commands.
@@ -98,10 +102,6 @@ func New( //nolint[funlen]
 		Aliases: []string{"p"},
 		Func:    fe.changePort,
 	})
-	changeCmd.AddCmd(&ishell.Cmd{Name: "proxy",
-		Help: "allow or disallow bridge to securely connect to proton via a third party when it is being blocked",
-		Func: fe.toggleAllowProxy,
-	})
 	changeCmd.AddCmd(&ishell.Cmd{Name: "smtp-security",
 		Help:    "change port numbers of IMAP and SMTP servers.(alias: ssl, starttls)",
 		Aliases: []string{"ssl", "starttls"},
@@ -109,19 +109,53 @@ func New( //nolint[funlen]
 	})
 	fe.AddCmd(changeCmd)
 
-	// Check commands.
-	checkCmd := &ishell.Cmd{Name: "check", Help: "check internet connection or new version."}
-	checkCmd.AddCmd(&ishell.Cmd{Name: "updates",
-		Help:    "check for Bridge updates. (aliases: u, v, version)",
-		Aliases: []string{"u", "version", "v"},
-		Func:    fe.checkUpdates,
+	// DoH commands.
+	dohCmd := &ishell.Cmd{Name: "proxy",
+		Help: "allow or disallow bridge to securely connect to proton via a third party when it is being blocked",
+	}
+	dohCmd.AddCmd(&ishell.Cmd{Name: "allow",
+		Help: "allow bridge to securely connect to proton via a third party when it is being blocked",
+		Func: fe.allowProxy,
 	})
-	checkCmd.AddCmd(&ishell.Cmd{Name: "internet",
-		Help:    "check internet connection. (aliases: i, conn, connection)",
-		Aliases: []string{"i", "con", "connection"},
-		Func:    fe.checkInternetConnection,
+	dohCmd.AddCmd(&ishell.Cmd{Name: "disallow",
+		Help: "disallow bridge to securely connect to proton via a third party when it is being blocked",
+		Func: fe.disallowProxy,
 	})
-	fe.AddCmd(checkCmd)
+	fe.AddCmd(dohCmd)
+
+	// Updates commands.
+	updatesCmd := &ishell.Cmd{Name: "updates",
+		Help: "manage bridge updates",
+	}
+	updatesCmd.AddCmd(&ishell.Cmd{Name: "check",
+		Help: "check for Bridge updates",
+		Func: fe.checkUpdates,
+	})
+	autoUpdatesCmd := &ishell.Cmd{Name: "autoupdates",
+		Help: "manage bridge updates",
+	}
+	updatesCmd.AddCmd(autoUpdatesCmd)
+	autoUpdatesCmd.AddCmd(&ishell.Cmd{Name: "enable",
+		Help: "automatically keep bridge up to date",
+		Func: fe.enableAutoUpdates,
+	})
+	autoUpdatesCmd.AddCmd(&ishell.Cmd{Name: "disable",
+		Help: "require bridge to be manually updated",
+		Func: fe.disableAutoUpdates,
+	})
+	updatesChannelCmd := &ishell.Cmd{Name: "channel",
+		Help: "switch updates channel",
+	}
+	updatesCmd.AddCmd(updatesChannelCmd)
+	updatesChannelCmd.AddCmd(&ishell.Cmd{Name: "early",
+		Help: "switch to the early-access updates channel",
+		Func: fe.selectEarlyChannel,
+	})
+	updatesChannelCmd.AddCmd(&ishell.Cmd{Name: "stable",
+		Help: "switch to the stable updates channel",
+		Func: fe.selectStableChannel,
+	})
+	fe.AddCmd(updatesCmd)
 
 	// Print info commands.
 	fe.AddCmd(&ishell.Cmd{Name: "log-dir",
@@ -134,11 +168,7 @@ func New( //nolint[funlen]
 		Aliases: []string{"man"},
 		Func:    fe.printManual,
 	})
-	fe.AddCmd(&ishell.Cmd{Name: "release-notes",
-		Help:    "print release notes. (aliases: notes, fixed-bugs, bugs, ver, version)",
-		Aliases: []string{"notes", "fixed-bugs", "bugs", "ver", "version"},
-		Func:    fe.printLocalReleaseNotes,
-	})
+
 	fe.AddCmd(&ishell.Cmd{Name: "credits",
 		Help: "print used resources.",
 		Func: fe.printCredits,
@@ -185,23 +215,24 @@ func New( //nolint[funlen]
 		defer panicHandler.HandlePanic()
 		fe.watchEvents()
 	}()
-	fe.eventListener.RetryEmit(events.TLSCertIssue)
-	fe.eventListener.RetryEmit(events.ErrorEvent)
 	return fe
 }
 
 func (f *frontendCLI) watchEvents() {
-	errorCh := f.getEventChannel(events.ErrorEvent)
-	internetOffCh := f.getEventChannel(events.InternetOffEvent)
-	internetOnCh := f.getEventChannel(events.InternetOnEvent)
-	addressChangedCh := f.getEventChannel(events.AddressChangedEvent)
-	addressChangedLogoutCh := f.getEventChannel(events.AddressChangedLogoutEvent)
-	logoutCh := f.getEventChannel(events.LogoutEvent)
-	certIssue := f.getEventChannel(events.TLSCertIssue)
+	errorCh := f.eventListener.ProvideChannel(events.ErrorEvent)
+	credentialsErrorCh := f.eventListener.ProvideChannel(events.CredentialsErrorEvent)
+	internetOffCh := f.eventListener.ProvideChannel(events.InternetOffEvent)
+	internetOnCh := f.eventListener.ProvideChannel(events.InternetOnEvent)
+	addressChangedCh := f.eventListener.ProvideChannel(events.AddressChangedEvent)
+	addressChangedLogoutCh := f.eventListener.ProvideChannel(events.AddressChangedLogoutEvent)
+	logoutCh := f.eventListener.ProvideChannel(events.LogoutEvent)
+	certIssue := f.eventListener.ProvideChannel(events.TLSCertIssue)
 	for {
 		select {
 		case errorDetails := <-errorCh:
 			f.Println("Bridge failed:", errorDetails)
+		case <-credentialsErrorCh:
+			f.notifyCredentialsError()
 		case <-internetOffCh:
 			f.notifyInternetOff()
 		case <-internetOnCh:
@@ -222,24 +253,8 @@ func (f *frontendCLI) watchEvents() {
 	}
 }
 
-func (f *frontendCLI) getEventChannel(event string) <-chan string {
-	ch := make(chan string)
-	f.eventListener.Add(event, ch)
-	return ch
-}
-
-// IsAppRestarting returns whether the app is currently set to restart.
-func (f *frontendCLI) IsAppRestarting() bool {
-	return f.appRestart
-}
-
 // Loop starts the frontend loop with an interactive shell.
-func (f *frontendCLI) Loop(credentialsError error) error {
-	if credentialsError != nil {
-		f.notifyCredentialsError()
-		return credentialsError
-	}
-
+func (f *frontendCLI) Loop() error {
 	f.Print(`
             Welcome to ProtonMail Bridge interactive shell
                               ___....___
@@ -260,3 +275,12 @@ func (f *frontendCLI) Loop(credentialsError error) error {
 	f.Run()
 	return nil
 }
+
+func (f *frontendCLI) NotifyManualUpdate(update updater.VersionInfo, canInstall bool) {
+	// NOTE: Save the update somewhere so that it can be installed when user chooses "install now".
+}
+
+func (f *frontendCLI) WaitUntilFrontendIsReady()              {}
+func (f *frontendCLI) SetVersion(version updater.VersionInfo) {}
+func (f *frontendCLI) NotifySilentUpdateInstalled()           {}
+func (f *frontendCLI) NotifySilentUpdateError(err error)      {}

internal/frontend/cli/system.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -22,7 +22,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ProtonMail/proton-bridge/internal/preferences"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/pkg/ports"
 	"github.com/abiosoft/ishell"
 )
@@ -34,21 +34,17 @@ var (
 func (f *frontendCLI) restart(c *ishell.Context) {
 	if f.yesNoQuestion("Are you sure you want to restart the Bridge") {
 		f.Println("Restarting Bridge...")
-		f.appRestart = true
+		f.restarter.SetToRestart()
 		f.Stop()
 	}
 }
 
-func (f *frontendCLI) checkInternetConnection(c *ishell.Context) {
-	if f.bridge.CheckConnection() == nil {
-		f.Println("Internet connection is available.")
-	} else {
-		f.Println("Can not contact the server, please check your internet connection.")
-	}
-}
-
 func (f *frontendCLI) printLogDir(c *ishell.Context) {
-	f.Println("Log files are stored in\n\n ", f.config.GetLogDir())
+	if path, err := f.locations.ProvideLogsPath(); err != nil {
+		f.Println("Failed to determine location of log files")
+	} else {
+		f.Println("Log files are stored in\n\n ", path)
+	}
 }
 
 func (f *frontendCLI) printManual(c *ishell.Context) {
@@ -69,7 +65,7 @@ func (f *frontendCLI) deleteCache(c *ishell.Context) {
 	f.Println("Cached cleared, restarting bridge")
 	// Clearing data removes everything (db, preferences, ...)
 	// so everything has to be stopped and started again.
-	f.appRestart = true
+	f.restarter.SetToRestart()
 	f.Stop()
 }
 
@@ -77,7 +73,7 @@ func (f *frontendCLI) changeSMTPSecurity(c *ishell.Context) {
 	f.ShowPrompt(false)
 	defer f.ShowPrompt(true)
 
-	isSSL := f.preferences.GetBool(preferences.SMTPSSLKey)
+	isSSL := f.settings.GetBool(settings.SMTPSSLKey)
 	newSecurity := "SSL"
 	if isSSL {
 		newSecurity = "STARTTLS"
@@ -86,9 +82,9 @@ func (f *frontendCLI) changeSMTPSecurity(c *ishell.Context) {
 	msg := fmt.Sprintf("Are you sure you want to change SMTP setting to %q and restart the Bridge", newSecurity)
 
 	if f.yesNoQuestion(msg) {
-		f.preferences.SetBool(preferences.SMTPSSLKey, !isSSL)
+		f.settings.SetBool(settings.SMTPSSLKey, !isSSL)
 		f.Println("Restarting Bridge...")
-		f.appRestart = true
+		f.restarter.SetToRestart()
 		f.Stop()
 	}
 }
@@ -97,14 +93,14 @@ func (f *frontendCLI) changePort(c *ishell.Context) {
 	f.ShowPrompt(false)
 	defer f.ShowPrompt(true)
 
-	currentPort = f.preferences.Get(preferences.IMAPPortKey)
+	currentPort = f.settings.Get(settings.IMAPPortKey)
 	newIMAPPort := f.readStringInAttempts("Set IMAP port (current "+currentPort+")", c.ReadLine, f.isPortFree)
 	if newIMAPPort == "" {
 		newIMAPPort = currentPort
 	}
 	imapPortChanged := newIMAPPort != currentPort
 
-	currentPort = f.preferences.Get(preferences.SMTPPortKey)
+	currentPort = f.settings.Get(settings.SMTPPortKey)
 	newSMTPPort := f.readStringInAttempts("Set SMTP port (current "+currentPort+")", c.ReadLine, f.isPortFree)
 	if newSMTPPort == "" {
 		newSMTPPort = currentPort
@@ -118,34 +114,46 @@ func (f *frontendCLI) changePort(c *ishell.Context) {
 
 	if imapPortChanged || smtpPortChanged {
 		f.Println("Saving values IMAP:", newIMAPPort, "SMTP:", newSMTPPort)
-		f.preferences.Set(preferences.IMAPPortKey, newIMAPPort)
-		f.preferences.Set(preferences.SMTPPortKey, newSMTPPort)
+		f.settings.Set(settings.IMAPPortKey, newIMAPPort)
+		f.settings.Set(settings.SMTPPortKey, newSMTPPort)
 		f.Println("Restarting Bridge...")
-		f.appRestart = true
+		f.restarter.SetToRestart()
 		f.Stop()
 	} else {
 		f.Println("Nothing changed")
 	}
 }
 
-func (f *frontendCLI) toggleAllowProxy(c *ishell.Context) {
-	if f.preferences.GetBool(preferences.AllowProxyKey) {
-		f.Println("Bridge is currently set to use alternative routing to connect to Proton if it is being blocked.")
-		if f.yesNoQuestion("Are you sure you want to stop bridge from doing this") {
-			f.preferences.SetBool(preferences.AllowProxyKey, false)
-			f.bridge.DisallowProxy()
-		}
-	} else {
-		f.Println("Bridge is currently set to NOT use alternative routing to connect to Proton if it is being blocked.")
-		if f.yesNoQuestion("Are you sure you want to allow bridge to do this") {
-			f.preferences.SetBool(preferences.AllowProxyKey, true)
-			f.bridge.AllowProxy()
-		}
+func (f *frontendCLI) allowProxy(c *ishell.Context) {
+	if f.settings.GetBool(settings.AllowProxyKey) {
+		f.Println("Bridge is already set to use alternative routing to connect to Proton if it is being blocked.")
+		return
+	}
+
+	f.Println("Bridge is currently set to NOT use alternative routing to connect to Proton if it is being blocked.")
+
+	if f.yesNoQuestion("Are you sure you want to allow bridge to do this") {
+		f.settings.SetBool(settings.AllowProxyKey, true)
+		f.bridge.AllowProxy()
+	}
+}
+
+func (f *frontendCLI) disallowProxy(c *ishell.Context) {
+	if !f.settings.GetBool(settings.AllowProxyKey) {
+		f.Println("Bridge is already set to NOT use alternative routing to connect to Proton if it is being blocked.")
+		return
+	}
+
+	f.Println("Bridge is currently set to use alternative routing to connect to Proton if it is being blocked.")
+
+	if f.yesNoQuestion("Are you sure you want to stop bridge from doing this") {
+		f.settings.SetBool(settings.AllowProxyKey, false)
+		f.bridge.DisallowProxy()
 	}
 }
 
 func (f *frontendCLI) isPortFree(port string) bool {
-	port = strings.Replace(port, ":", "", -1)
+	port = strings.ReplaceAll(port, ":", "")
 	if port == "" || port == currentPort {
 		return true
 	}

internal/frontend/cli/updates.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -21,40 +21,22 @@ import (
 	"strings"
 
 	"github.com/ProtonMail/proton-bridge/internal/bridge"
-	"github.com/ProtonMail/proton-bridge/internal/updates"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
 	"github.com/abiosoft/ishell"
 )
 
 func (f *frontendCLI) checkUpdates(c *ishell.Context) {
-	isUpToDate, latestVersionInfo, err := f.updates.CheckIsUpToDate()
+	version, err := f.updater.Check()
 	if err != nil {
-		f.printAndLogError("Cannot retrieve version info: ", err)
-		f.checkInternetConnection(c)
+		f.Println("An error occurred while checking for updates.")
 		return
 	}
-	if isUpToDate {
-		f.Println("Your version is up to date.")
+
+	if f.updater.IsUpdateApplicable(version) {
+		f.Println("An update is available.")
 	} else {
-		f.notifyNeedUpgrade()
-		f.Println("")
-		f.printReleaseNotes(latestVersionInfo)
-	}
-}
-
-func (f *frontendCLI) printLocalReleaseNotes(c *ishell.Context) {
-	localVersion := f.updates.GetLocalVersion()
-	f.printReleaseNotes(localVersion)
-}
-
-func (f *frontendCLI) printReleaseNotes(versionInfo updates.VersionInfo) {
-	f.Println(bold("ProtonMail Bridge "+versionInfo.Version), "\n")
-	if versionInfo.ReleaseNotes != "" {
-		f.Println(bold("Release Notes"))
-		f.Println(versionInfo.ReleaseNotes)
-	}
-	if versionInfo.ReleaseFixedBugs != "" {
-		f.Println(bold("Fixed bugs"))
-		f.Println(versionInfo.ReleaseFixedBugs)
+		f.Println("Your version is up to date.")
 	}
 }
 
@@ -63,3 +45,68 @@ func (f *frontendCLI) printCredits(c *ishell.Context) {
 		f.Println(pkg)
 	}
 }
+
+func (f *frontendCLI) enableAutoUpdates(c *ishell.Context) {
+	if f.settings.GetBool(settings.AutoUpdateKey) {
+		f.Println("Bridge is already set to automatically install updates.")
+		return
+	}
+
+	f.Println("Bridge is currently set to NOT automatically install updates.")
+
+	if f.yesNoQuestion("Are you sure you want to allow bridge to do this") {
+		f.settings.SetBool(settings.AutoUpdateKey, true)
+	}
+}
+
+func (f *frontendCLI) disableAutoUpdates(c *ishell.Context) {
+	if !f.settings.GetBool(settings.AutoUpdateKey) {
+		f.Println("Bridge is already set to NOT automatically install updates.")
+		return
+	}
+
+	f.Println("Bridge is currently set to automatically install updates.")
+
+	if f.yesNoQuestion("Are you sure you want to stop bridge from doing this") {
+		f.settings.SetBool(settings.AutoUpdateKey, false)
+	}
+}
+
+func (f *frontendCLI) selectEarlyChannel(c *ishell.Context) {
+	if f.bridge.GetUpdateChannel() == updater.EarlyChannel {
+		f.Println("Bridge is already on the early-access update channel.")
+		return
+	}
+
+	f.Println("Bridge is currently on the stable update channel.")
+
+	if f.yesNoQuestion("Are you sure you want to switch to the early-access update channel") {
+		needRestart, err := f.bridge.SetUpdateChannel(updater.EarlyChannel)
+		if err != nil {
+			f.Println("There was a problem switching update channel.")
+		}
+		if needRestart {
+			f.restarter.SetToRestart()
+		}
+	}
+}
+
+func (f *frontendCLI) selectStableChannel(c *ishell.Context) {
+	if f.bridge.GetUpdateChannel() == updater.StableChannel {
+		f.Println("Bridge is already on the stable update channel.")
+		return
+	}
+
+	f.Println("Bridge is currently on the early-access update channel.")
+	f.Println("Switching to the stable channel may reset all data!")
+
+	if f.yesNoQuestion("Are you sure you want to switch to the stable update channel") {
+		needRestart, err := f.bridge.SetUpdateChannel(updater.StableChannel)
+		if err != nil {
+			f.Println("There was a problem switching update channel.")
+		}
+		if needRestart {
+			f.restarter.SetToRestart()
+		}
+	}
+}

internal/frontend/cli/utils.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -71,7 +71,7 @@ func (f *frontendCLI) printAndLogError(args ...interface{}) {
 func (f *frontendCLI) processAPIError(err error) {
 	log.Warn("API error: ", err)
 	switch err {
-	case pmapi.ErrAPINotReachable:
+	case pmapi.ErrNoConnection:
 		f.notifyInternetOff()
 	case pmapi.ErrUpgradeApplication:
 		f.notifyNeedUpgrade()
@@ -93,10 +93,15 @@ func (f *frontendCLI) notifyLogout(address string) {
 }
 
 func (f *frontendCLI) notifyNeedUpgrade() {
-	f.Println("Please download and install the newest version of application from", f.updates.GetDownloadLink())
+	version, err := f.updater.Check()
+	if err != nil {
+		log.WithError(err).Error("Failed to notify need upgrade")
+		return
+	}
+	f.Println("Please download and install the newest version of application from", version.LandingPage)
 }
 
-func (f *frontendCLI) notifyCredentialsError() {
+func (f *frontendCLI) notifyCredentialsError() { // nolint[unused]
 	// Print in 80-column width.
 	f.Println("ProtonMail Bridge is not able to detect a supported password manager")
 	f.Println("(pass, gnome-keyring). Please install and set up a supported password manager")

internal/frontend/frontend.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -19,15 +19,18 @@
 package frontend
 
 import (
-	"github.com/0xAX/notificator"
+	"github.com/ProtonMail/go-autostart"
 	"github.com/ProtonMail/proton-bridge/internal/bridge"
+	"github.com/ProtonMail/proton-bridge/internal/config/settings"
+	"github.com/ProtonMail/proton-bridge/internal/config/useragent"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/cli"
 	cliie "github.com/ProtonMail/proton-bridge/internal/frontend/cli-ie"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/qt"
 	qtie "github.com/ProtonMail/proton-bridge/internal/frontend/qt-ie"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/types"
 	"github.com/ProtonMail/proton-bridge/internal/importexport"
-	"github.com/ProtonMail/proton-bridge/pkg/config"
+	"github.com/ProtonMail/proton-bridge/internal/locations"
+	"github.com/ProtonMail/proton-bridge/internal/updater"
 	"github.com/ProtonMail/proton-bridge/pkg/listener"
 	"github.com/sirupsen/logrus"
 )
@@ -38,55 +41,97 @@ var (
 
 // Frontend is an interface to be implemented by each frontend type (cli, gui, html).
 type Frontend interface {
-	Loop(credentialsError error) error
-	IsAppRestarting() bool
-}
-
-// HandlePanic handles panics which occur for users with GUI.
-func HandlePanic(appName string) {
-	notify := notificator.New(notificator.Options{
-		DefaultIcon: "../frontend/ui/icon/icon.png",
-		AppName:     appName,
-	})
-	_ = notify.Push("Fatal Error", "The "+appName+" has encountered a fatal error. ", "/frontend/icon/icon.png", notificator.UR_CRITICAL)
+	Loop() error
+	NotifyManualUpdate(update updater.VersionInfo, canInstall bool)
+	SetVersion(update updater.VersionInfo)
+	NotifySilentUpdateInstalled()
+	NotifySilentUpdateError(error)
+	WaitUntilFrontendIsReady()
 }
 
 // New returns initialized frontend based on `frontendType`, which can be `cli` or `qt`.
 func New(
 	version,
 	buildVersion,
+	programName,
 	frontendType string,
 	showWindowOnStart bool,
 	panicHandler types.PanicHandler,
-	config *config.Config,
-	preferences *config.Preferences,
+	locations *locations.Locations,
+	settings *settings.Settings,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
+	userAgent *useragent.UserAgent,
 	bridge *bridge.Bridge,
 	noEncConfirmator types.NoEncConfirmator,
+	autostart *autostart.App,
+	restarter types.Restarter,
 ) Frontend {
 	bridgeWrap := types.NewBridgeWrap(bridge)
-	return new(version, buildVersion, frontendType, showWindowOnStart, panicHandler, config, preferences, eventListener, updates, bridgeWrap, noEncConfirmator)
+	return newBridgeFrontend(
+		version,
+		buildVersion,
+		programName,
+		frontendType,
+		showWindowOnStart,
+		panicHandler,
+		locations,
+		settings,
+		eventListener,
+		updater,
+		userAgent,
+		bridgeWrap,
+		noEncConfirmator,
+		autostart,
+		restarter,
+	)
 }
 
-func new(
+func newBridgeFrontend(
 	version,
 	buildVersion,
+	programName,
 	frontendType string,
 	showWindowOnStart bool,
 	panicHandler types.PanicHandler,
-	config *config.Config,
-	preferences *config.Preferences,
+	locations *locations.Locations,
+	settings *settings.Settings,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
+	userAgent *useragent.UserAgent,
 	bridge types.Bridger,
 	noEncConfirmator types.NoEncConfirmator,
+	autostart *autostart.App,
+	restarter types.Restarter,
 ) Frontend {
 	switch frontendType {
 	case "cli":
-		return cli.New(panicHandler, config, preferences, eventListener, updates, bridge)
+		return cli.New(
+			panicHandler,
+			locations,
+			settings,
+			eventListener,
+			updater,
+			bridge,
+			restarter,
+		)
 	default:
-		return qt.New(version, buildVersion, showWindowOnStart, panicHandler, config, preferences, eventListener, updates, bridge, noEncConfirmator)
+		return qt.New(
+			version,
+			buildVersion,
+			programName,
+			showWindowOnStart,
+			panicHandler,
+			locations,
+			settings,
+			eventListener,
+			updater,
+			userAgent,
+			bridge,
+			noEncConfirmator,
+			autostart,
+			restarter,
+		)
 	}
 }
 
@@ -94,31 +139,67 @@ func new(
 func NewImportExport(
 	version,
 	buildVersion,
+	programName,
 	frontendType string,
 	panicHandler types.PanicHandler,
-	config *config.Config,
+	locations *locations.Locations,
+	settings *settings.Settings,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
 	ie *importexport.ImportExport,
+	restarter types.Restarter,
 ) Frontend {
 	ieWrap := types.NewImportExportWrap(ie)
-	return newImportExport(version, buildVersion, frontendType, panicHandler, config, eventListener, updates, ieWrap)
+	return newIEFrontend(
+		version,
+		buildVersion,
+		programName,
+		frontendType,
+		panicHandler,
+		locations,
+		settings,
+		eventListener,
+		updater,
+		ieWrap,
+		restarter,
+	)
 }
 
-func newImportExport(
+func newIEFrontend(
 	version,
 	buildVersion,
+	programName,
 	frontendType string,
 	panicHandler types.PanicHandler,
-	config *config.Config,
+	locations *locations.Locations,
+	settings *settings.Settings,
 	eventListener listener.Listener,
-	updates types.Updater,
+	updater types.Updater,
 	ie types.ImportExporter,
+	restarter types.Restarter,
 ) Frontend {
 	switch frontendType {
 	case "cli":
-		return cliie.New(panicHandler, config, eventListener, updates, ie)
+		return cliie.New(
+			panicHandler,
+			locations,
+			eventListener,
+			updater,
+			ie,
+			restarter,
+		)
 	default:
-		return qtie.New(version, buildVersion, panicHandler, config, eventListener, updates, ie)
+		return qtie.New(
+			version,
+			buildVersion,
+			programName,
+			panicHandler,
+			locations,
+			settings,
+			eventListener,
+			updater,
+			ie,
+			restarter,
+		)
 	}
 }

internal/frontend/qml/BridgeUI/AccountDelegate.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/BubbleMenu.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/Credits.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/DialogFirstStart.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/DialogKeychainChange.qml

@@ -0,0 +1,194 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail 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.
+//
+// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Change default keychain dialog
+
+import QtQuick 2.8
+import BridgeUI 1.0
+import ProtonUI 1.0
+import QtQuick.Controls 2.2 as QC
+import QtQuick.Layouts 1.0
+
+Dialog {
+    id: root
+
+    title : "Change which keychain Bridge uses as default"
+    subtitle : "Select which keychain is used (Bridge will automatically restart)"
+    isDialogBusy: currentIndex==1
+
+    property var selectedKeychain
+
+    Connections {
+        target: go.selectedKeychain
+        onValueChanged: {
+            console.debug("go.selectedKeychain == ", go.selectedKeychain)
+        }
+    }
+
+    ColumnLayout {
+        Layout.fillHeight: true
+        Layout.fillWidth: true
+
+        Item {
+            Layout.fillWidth: true
+            Layout.minimumHeight: root.titleHeight + Style.dialog.heightSeparator
+            Layout.maximumHeight: root.titleHeight + Style.dialog.heightSeparator
+        }
+
+        Item {
+            Layout.fillHeight: true
+            Layout.fillWidth: true
+
+            ColumnLayout {
+                anchors.centerIn: parent
+
+                Repeater {
+                    id: keychainRadioButtons
+                    model: go.availableKeychain
+                    QC.RadioButton {
+                        id: radioDelegate
+                        text: modelData
+                        checked: go.selectedKeychain === modelData
+
+                        Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
+                        spacing: Style.main.spacing
+
+                        indicator: Text {
+                            text  : radioDelegate.checked ? Style.fa.check_circle : Style.fa.circle_o
+                            color : radioDelegate.checked ? Style.main.textBlue   : Style.main.textInactive
+                            font {
+                                pointSize: Style.dialog.iconSize * Style.pt
+                                family: Style.fontawesome.name
+                            }
+                        }
+                        contentItem: Text {
+                            text: radioDelegate.text
+                            color: Style.main.text
+                            font {
+                                pointSize: Style.dialog.fontSize * Style.pt
+                                bold: checked
+                            }
+                            horizontalAlignment : Text.AlignHCenter
+                            verticalAlignment   : Text.AlignVCenter
+                            leftPadding: Style.dialog.iconSize
+                        }
+
+                        onCheckedChanged: {
+                            if (checked) {
+                                root.selectedKeychain = modelData
+                            }
+                        }
+                    }
+                }
+
+                Item {
+                    Layout.fillWidth: true
+                    Layout.minimumHeight: Style.dialog.heightSeparator
+                    Layout.maximumHeight: Style.dialog.heightSeparator
+                }
+
+                Row {
+                    id: buttonRow
+                    Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
+                    spacing: Style.dialog.spacing
+                    ButtonRounded {
+                        id:buttonNo
+                        color_main: Style.dialog.text
+                        fa_icon: Style.fa.times
+                        text: qsTr("Cancel", "dismisses current action")
+                        onClicked : root.hide()
+                    }
+                    ButtonRounded {
+                        id: buttonYes
+                        color_main: Style.dialog.text
+                        color_minor: Style.main.textBlue
+                        isOpaque: true
+                        fa_icon: Style.fa.check
+                        text: qsTr("Okay", "confirms and dismisses a notification")
+                        onClicked : root.confirmed()
+                    }
+                }
+            }
+        }
+    }
+
+    ColumnLayout {
+        Layout.fillHeight: true
+        Layout.fillWidth: true
+
+        Item {
+            Layout.fillWidth: true
+            Layout.minimumHeight: root.titleHeight + Style.dialog.heightSeparator
+            Layout.maximumHeight: root.titleHeight + Style.dialog.heightSeparator
+        }
+
+        Item {
+            Layout.fillHeight: true
+            Layout.fillWidth: true
+            Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
+
+            Text {
+                id: answ
+                anchors.horizontalCenter: parent.horizontalCenter
+                anchors.verticalCenter: parent.verticalCenter
+                width : parent.width/2
+                color: Style.dialog.text
+                font {
+                    pointSize : Style.dialog.fontSize * Style.pt
+                    bold      : true
+                }
+                text : "Default keychain is now set to " + root.selectedKeychain +
+                "\n\n" +
+                qsTr("Settings will be applied after the next start.", "notification about setting being applied after next start") +
+                "\n\n" +
+                qsTr("Bridge will now restart.", "notification about restarting")
+                wrapMode: Text.Wrap
+                horizontalAlignment: Text.AlignHCenter
+            }
+        }
+    }
+
+    Shortcut {
+        sequence: StandardKey.Cancel
+        onActivated: root.hide()
+    }
+
+    Shortcut {
+        sequence: "Enter"
+        onActivated: root.confirmed()
+    }
+
+    function confirmed() {
+        if (selectedKeychain === go.selectedKeychain) {
+            root.hide()
+            return
+        }
+
+        incrementCurrentIndex()
+        timer.start()
+    }
+
+    timer.interval : 5000
+
+    Connections {
+        target: timer
+        onTriggered: {
+            // This action triggers restart on the backend side.
+            go.selectedKeychain = selectedKeychain
+        }
+    }
+}

internal/frontend/qml/BridgeUI/DialogPortChange.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -226,7 +226,7 @@ Dialog {
         target: timer
         onTriggered: {
             go.setPortsAndSecurity(imapPort.text, smtpPort.text, securitySMTPSTARTTLS.checked)
-            go.isRestarting = true
+            go.setToRestart()
             Qt.quit()
         }
     }

internal/frontend/qml/BridgeUI/DialogTLSCertInfo.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/DialogYesNo.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -137,6 +137,7 @@ Dialog {
             spacing: Style.dialog.spacing
             ButtonRounded {
                 id:buttonNo
+                visible: root.state != "toggleEarlyAccess"
                 color_main: Style.dialog.text
                 fa_icon: Style.fa.times
                 text: qsTr("No")
@@ -148,7 +149,7 @@ Dialog {
                 color_minor: Style.main.textBlue
                 isOpaque: true
                 fa_icon: Style.fa.check
-                text: qsTr("Yes")
+                text: root.state == "toggleEarlyAccess" ?  qsTr("Ok") : qsTr("Yes")
                 onClicked : {
                     currentIndex=1
                     root.confirmed()
@@ -228,7 +229,7 @@ Dialog {
                 currentIndex : 0
                 title        : qsTr("Clear cache", "title of page that displays during cache clearing")
                 question     : qsTr("Are you sure you want to clear your local cache?", "displays during cache clearing")
-                note         : qsTr("This will delete all of your stored preferences as well as cached email data for all accounts, temporarily slowing down the email download process significantly.", "displays during cache clearing")
+                note         : qsTr("This will delete all of your stored preferences as well as cached email data for all accounts, and requires you to reconfigure your client.", "displays during cache clearing")
                 answer       : qsTr("Clearing the cache ...", "displays during cache clearing")
             }
         },
@@ -292,6 +293,28 @@ Dialog {
                 }
             }
         },
+        State {
+            name: "toggleEarlyAccessOn"
+            PropertyChanges {
+                target: root
+                currentIndex : 0
+                question     : qsTr("Do you want to be the first to get the latest updates? Please keep in mind that early versions may be less stable.")
+                note         : ""
+                title        : qsTr("Enable early access")
+                answer       : qsTr("Enabling early access...")
+            }
+        },
+        State {
+            name: "toggleEarlyAccessOff"
+            PropertyChanges {
+                target: root
+                currentIndex : 0
+                question     : qsTr("Are you sure you want to leave early access? Please keep in mind this operation clears the cache and restarts Bridge.")
+                note         : qsTr("This will delete all of your stored preferences as well as cached email data for all accounts, and requires you to reconfigure your client.")
+                title        : qsTr("Disable early access")
+                answer       : qsTr("Disabling early access...")
+            }
+        },
         State {
             name: "noKeychain"
             PropertyChanges {
@@ -340,13 +363,9 @@ Dialog {
         winMain.dialogAddUser     .visible = false
         winMain.dialogChangePort  .visible = false
         winMain.dialogCredits     .visible = false
-        winMain.dialogVersionInfo .visible = false
-        // dialogFirstStart should reappear again after closing global
         root.visible = true
     }
 
-
-
     onConfirmed : {
         if (state == "quit" || state == "instance exists" ) {
             timer.interval = 1000
@@ -360,17 +379,19 @@ Dialog {
     Connections {
         target: timer
         onTriggered: {
-            if ( state == "addressmode"      ) { go.switchAddressMode   (input) }
-            if ( state == "clearChain"       ) { go.clearKeychain       ()      }
-            if ( state == "clearCache"       ) { go.clearCache          ()      }
-            if ( state == "deleteUser"       ) { go.deleteAccount       (input, checkBoxWrapper.isChecked) }
-            if ( state == "logout"           ) { go.logoutAccount       (input) }
-            if ( state == "toggleAutoStart"  ) { go.toggleAutoStart     ()      }
-            if ( state == "toggleAllowProxy" ) { go.toggleAllowProxy    ()      }
-            if ( state == "quit"             ) { Qt.quit                ()      }
-            if ( state == "instance exists"  ) { Qt.quit                ()      }
-            if ( state == "noKeychain"       ) { Qt.quit                ()      }
-            if ( state == "checkUpdates"     ) { go.runCheckVersion     (true)  }
+            if ( state == "addressmode"       ) { go.switchAddressMode   (input) }
+            if ( state == "clearChain"        ) { go.clearKeychain       ()      }
+            if ( state == "clearCache"        ) { go.clearCache          ()      }
+            if ( state == "deleteUser"        ) { go.deleteAccount       (input, checkBoxWrapper.isChecked) }
+            if ( state == "logout"            ) { go.logoutAccount       (input) }
+            if ( state == "toggleAutoStart"   ) { go.toggleAutoStart     ()      }
+            if ( state == "toggleAllowProxy"  ) { go.toggleAllowProxy    ()      }
+            if ( state == "toggleEarlyAccessOn"  ) { go.toggleEarlyAccess   ()      }
+            if ( state == "toggleEarlyAccessOff" ) { go.toggleEarlyAccess   ()      }
+            if ( state == "quit"              ) { Qt.quit                ()      }
+            if ( state == "instance exists"   ) { Qt.quit                ()      }
+            if ( state == "noKeychain"        ) { Qt.quit                ()      }
+            if ( state == "checkUpdates"      ) { }
         }
     }
 

internal/frontend/qml/BridgeUI/HelpView.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -74,9 +74,7 @@ Item {
                 rightIcon.text : Style.fa.chevron_circle_right
                 rightIcon.font.pointSize : Style.settings.toggleSize * Style.pt
                 onClicked: {
-                    dialogGlobal.state="checkUpdates"
-                    dialogGlobal.show()
-                    dialogGlobal.confirmed()
+                    go.checkForUpdates()
                 }
             }
 
@@ -102,7 +100,7 @@ Item {
             Row {
                 anchors.left : parent.left
 
-                Rectangle { height: Style.dialog.spacing; width: (wrapper.width- credits.width - release.width - sepaCreditsRelease.width)/2; color: "transparent"}
+                Rectangle { height: Style.dialog.spacing; width: (wrapper.width - credits.width - licenseFile.width - release.width - sepaCreditsRelease.width)/2; color: "transparent"}
 
                 ClickIconText {
                     id:credits
@@ -114,6 +112,20 @@ Item {
                     onClicked     : winMain.dialogCredits.show()
                 }
 
+                Rectangle {id: sepaLicenseFile ; height: Style.dialog.spacing; width: Style.main.dummy; color: "transparent"}
+
+                ClickIconText {
+                    id:licenseFile
+                    iconText      : ""
+                    text          : qsTr("License", "link to click on to view license file")
+                    textColor     : Style.main.textDisabled
+                    fontSize      : Style.main.fontSize
+                    textUnderline : true
+                    onClicked     : {
+                        go.openLicenseFile()
+                    }
+                }
+
                 Rectangle {id: sepaCreditsRelease ; height: Style.dialog.spacing; width: Style.main.dummy; color: "transparent"}
 
                 ClickIconText {
@@ -123,10 +135,7 @@ Item {
                     textColor     : Style.main.textDisabled
                     fontSize      : Style.main.fontSize
                     textUnderline : true
-                    onClicked     : {
-                        go.getLocalVersionInfo()
-                        winMain.dialogVersionInfo.show()
-                    }
+                    onClicked : gui.openReleaseNotes()
                 }
             }
         }

internal/frontend/qml/BridgeUI/InfoWindow.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/MainWindow.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -38,7 +38,6 @@ Window {
     property alias dialogUpdate                 : dialogUpdate
     property alias dialogFirstStart             : dialogFirstStart
     property alias dialogGlobal                 : dialogGlobal
-    property alias dialogVersionInfo            : dialogVersionInfo
     property alias dialogConnectionTroubleshoot : dialogConnectionTroubleshoot
     property alias bubbleNote                   : bubbleNote
     property alias addAccountTip                : addAccountTip
@@ -66,7 +65,6 @@ Window {
     !dialogUpdate      .visible &&
     !dialogFirstStart  .visible &&
     !dialogGlobal      .visible &&
-    !dialogVersionInfo .visible &&
     !bubbleNote        .visible
 
     Accessible.role: Accessible.Grouping
@@ -305,6 +303,10 @@ Window {
         id: dialogChangePort
     }
 
+    DialogKeychainChange {
+        id: dialogChangeKeychain
+    }
+
     DialogConnectionTroubleshoot {
         id: dialogConnectionTroubleshoot
     }
@@ -316,50 +318,7 @@ Window {
 
     DialogUpdate {
         id: dialogUpdate
-
-        property string manualLinks : {
-            var out = ""
-            var links = go.downloadLink.split("\n")
-            var l;
-            for (l in links) {
-                out += '<a href="%1">%1</a><br>'.arg(links[l])
-            }
-            return out
-        }
-
-        title: root.isOutdateVersion ?
-        qsTr("%1 is outdated", "title of outdate dialog").arg(go.programTitle):
-        qsTr("%1 update to %2", "title of update dialog").arg(go.programTitle).arg(go.newversion)
-        introductionText: {
-            if (root.isOutdateVersion) {
-                if (go.goos=="linux") {
-                    return qsTr('You are using an outdated version of our software.<br>
-                    Please download and install the latest version to continue using %1.<br><br>
-                    %2',
-                    "Message for force-update in Linux").arg(go.programTitle).arg(dialogUpdate.manualLinks)
-                } else {
-                    return qsTr('You are using an outdated version of our software.<br>
-                    Please download and install the latest version to continue using %1.<br><br>
-                    You can continue with the update or download and install the new version manually from<br><br>
-                    <a href="%2">%2</a>',
-                    "Message for force-update in Win/Mac").arg(go.programTitle).arg(go.landingPage)
-                }
-            } else {
-                if (go.goos=="linux") {
-                    return qsTr('A new version of Bridge is available.<br>
-                    Check <a href="%1">release notes</a> to learn what is new in %2.<br>
-                    Use your package manager to update or download and install the new version manually from<br><br>
-                    %3',
-                    "Message for update in Linux").arg("releaseNotes").arg(go.newversion).arg(dialogUpdate.manualLinks)
-                } else {
-                    return qsTr('A new version of Bridge is available.<br>
-                    Check <a href="%1">release notes</a> to learn what is new in %2.<br>
-                    You can continue with the update or download and install the new version manually from<br><br>
-                    <a href="%3">%3</a>',
-                    "Message for update in Win/Mac").arg("releaseNotes").arg(go.newversion).arg(go.landingPage)
-                }
-            }
-        }
+        forceUpdate: root.isOutdateVersion
     }
 
 
@@ -373,25 +332,6 @@ Window {
         id: dialogTlsCert
     }
 
-    Dialog {
-        id: dialogVersionInfo
-        property bool checkVersionOnClose : false
-        title: qsTr("Information about", "title of release notes page") + " v" + go.newversion
-        VersionInfo { }
-        onShow : {
-            // Hide information bar with old version
-            if (infoBar.state=="oldVersion") {
-                infoBar.state="upToDate"
-                dialogVersionInfo.checkVersionOnClose = true
-            }
-        }
-        onHide : {
-            // Reload current version based on online status
-            if (dialogVersionInfo.checkVersionOnClose) go.runCheckVersion(false)
-            dialogVersionInfo.checkVersionOnClose = false
-        }
-    }
-
     DialogYesNo {
         id: dialogGlobal
         question : ""

internal/frontend/qml/BridgeUI/ManualWindow.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/OutgoingNoEncPopup.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/SettingsView.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -36,6 +36,24 @@ Item {
             color: Style.main.background
         }
 
+        // horizontall scrollbar sometimes showes up when vertical scrollbar coveres content
+        ScrollBar.horizontal.policy: ScrollBar.AlwaysOff
+        ScrollBar.vertical.policy: ScrollBar.AsNeeded
+
+        // keeping vertical scrollbar allways visible when needed
+        Connections {
+            target: wrapper.ScrollBar.vertical
+            onSizeChanged: {
+                // ScrollBar.size == 0 at creating so no need to make it active
+                if (wrapper.ScrollBar.vertical.size < 1.0 && wrapper.ScrollBar.vertical.size > 0 && !wrapper.ScrollBar.vertical.active) {
+                    wrapper.ScrollBar.vertical.active = true
+                }
+            }
+            onActiveChanged: {
+                wrapper.ScrollBar.vertical.active = true
+            }
+        }
+
         // content
         Column {
             anchors.left : parent.left
@@ -48,6 +66,7 @@ Item {
                     text : qsTr("Clear", "clickable link next to clear cache button in settings")
                     color: Style.main.text
                     font {
+                        family : cacheClear.font.family // use default font, not font-awesome
                         pointSize : Style.settings.fontSize * Style.pt
                         underline : true
                     }
@@ -66,6 +85,7 @@ Item {
                     text : qsTr("Clear", "clickable link next to clear keychain button in settings")
                     color: Style.main.text
                     font {
+                        family : cacheKeychain.font.family // use default font, not font-awesome
                         pointSize : Style.settings.fontSize * Style.pt
                         underline : true
                     }
@@ -95,6 +115,50 @@ Item {
                 }
             }
 
+            ButtonIconText {
+                id: autoUpdates
+                text: qsTr("Keep the application up to date", "label for toggle that activates and disables the automatic updates")
+                leftIcon.text  : Style.fa.download
+                rightIcon {
+                    font.pointSize : Style.settings.toggleSize * Style.pt
+                    text  : go.isAutoUpdate!=false ? Style.fa.toggle_on  : Style.fa.toggle_off
+                    color : go.isAutoUpdate!=false ? Style.main.textBlue : Style.main.textDisabled
+                }
+                Accessible.description: (
+                    go.isAutoUpdate == false ?
+                    qsTr("Enable"  , "Click to enable the automatic update of Bridge") :
+                    qsTr("Disable" , "Click to disable the automatic update of Bridge")
+                ) + " " + text
+                onClicked: {
+                    go.toggleAutoUpdate()
+                }
+            }
+
+            ButtonIconText {
+                id: earlyAccess
+                text: qsTr("Early access", "label for toggle that enables and disables early access")
+                leftIcon.text  : Style.fa.star
+                rightIcon {
+                    font.pointSize : Style.settings.toggleSize * Style.pt
+                    text  : go.isEarlyAccess!=false ? Style.fa.toggle_on  : Style.fa.toggle_off
+                    color : go.isEarlyAccess!=false ? Style.main.textBlue : Style.main.textDisabled
+                }
+                Accessible.description: (
+                    go.isEarlyAccess == false ?
+                    qsTr("Enable"  , "Click to enable early access") :
+                    qsTr("Disable" , "Click to disable early access")
+                ) + " " + text
+                onClicked: {
+                    if (go.isEarlyAccess == true) {
+                      dialogGlobal.state="toggleEarlyAccessOff"
+                      dialogGlobal.show()
+                    } else {
+                      dialogGlobal.state="toggleEarlyAccessOn"
+                      dialogGlobal.show()
+                    }
+                }
+            }
+
             ButtonIconText {
                 id: advancedSettings
                 property bool isAdvanced : !go.isDefaultPort
@@ -125,6 +189,7 @@ Item {
                     text : qsTr("Change", "clickable link next to change ports button in settings")
                     color: Style.main.text
                     font {
+                        family : changePort.font.family // use default font, not font-awesome
                         pointSize : Style.settings.fontSize * Style.pt
                         underline : true
                     }
@@ -175,6 +240,24 @@ Item {
                 }
             }
 
+            ButtonIconText {
+                id: changeKeychain
+                visible: advancedSettings.isAdvanced && (go.availableKeychain.length > 1)
+                text: qsTr("Change keychain", "button to open dialog with default keychain selection")
+                leftIcon.text  : Style.fa.key
+                rightIcon {
+                    text : qsTr("Change", "clickable link next to change keychain button in settings")
+                    color: Style.main.text
+                    font {
+                        family : changeKeychain.font.family // use default font, not font-awesome
+                        pointSize : Style.settings.fontSize * Style.pt
+                        underline : true
+                    }
+                }
+                onClicked: {
+                    dialogChangeKeychain.show()
+                }
+            }
         }
     }
 }

internal/frontend/qml/BridgeUI/StatusFooter.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/BridgeUI/VersionInfo.qml

@@ -1,127 +0,0 @@
-// Copyright (c) 2020 Proton Technologies AG
-//
-// This file is part of ProtonMail Bridge.
-//
-// ProtonMail 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.
-//
-// ProtonMail 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 ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
-
-// credits
-
-import QtQuick 2.8
-import BridgeUI 1.0
-import ProtonUI 1.0
-
-Item {
-    Rectangle {
-        id: wrapper
-        anchors.centerIn: parent
-        width: 2*Style.main.width/3
-        height: Style.main.height - 6*Style.dialog.titleSize
-        color: "transparent"
-
-        Flickable {
-            anchors.fill       : wrapper
-            contentWidth       : wrapper.width
-            contentHeight      : content.height
-            flickableDirection : Flickable.VerticalFlick
-            clip               : true
-
-
-            Column {
-                id: content
-                anchors.top: parent.top
-                anchors.horizontalCenter: parent.horizontalCenter
-                width: wrapper.width
-                spacing: Style.dialog.spacing
-
-                AccessibleText {
-                    visible: go.changelog != ""
-                    anchors {
-                        left: parent.left
-                    }
-                    font.bold: true
-                    font.pointSize: Style.main.fontSize * Style.pt
-                    color: Style.main.text
-                    text: qsTr("Release notes", "list of release notes for this version of the app") + ":"
-                }
-
-                AccessibleSelectableText {
-                    anchors {
-                        left: parent.left
-                        leftMargin: Style.main.leftMargin
-                    }
-                    font {
-                        pointSize : Style.main.fontSize * Style.pt
-                    }
-                    width: wrapper.width - anchors.leftMargin
-                    onLinkActivated: {
-                        Qt.openUrlExternally(link)
-                    }
-                    wrapMode: Text.Wrap
-                    color: Style.main.text
-                    text: go.changelog
-                }
-
-                AccessibleText {
-                    visible: go.bugfixes != ""
-                    anchors {
-                        left: parent.left
-                    }
-                    font.bold: true
-                    font.pointSize: Style.main.fontSize * Style.pt
-                    color: Style.main.text
-                    text: qsTr("Fixed bugs", "list of bugs fixed for this version of the app") + ":"
-                }
-
-                AccessibleSelectableText {
-                    visible: go.bugfixes!=""
-                    anchors {
-                        left: parent.left
-                        leftMargin: Style.main.leftMargin
-                    }
-                    font {
-                        pointSize : Style.main.fontSize * Style.pt
-                    }
-                    width: wrapper.width - anchors.leftMargin
-                    onLinkActivated: {
-                        Qt.openUrlExternally(link)
-                    }
-                    wrapMode: Text.Wrap
-                    color: Style.main.text
-                    text: go.bugfixes
-                }
-
-                Rectangle{id:spacer; color:Style.transparent; width: Style.main.dummy; height: buttonClose.height}
-
-                ButtonRounded {
-                    id: buttonClose
-                    anchors.horizontalCenter: content.horizontalCenter
-                    text: qsTr("Close")
-                    onClicked: {
-                        dialogVersionInfo.hide()
-                    }
-                }
-
-
-                AccessibleSelectableText {
-                    anchors.horizontalCenter: content.horizontalCenter
-                    font {
-                        pointSize : Style.main.fontSize * Style.pt
-                    }
-                    color: Style.main.textDisabled
-                    text: "\n Current: "+go.fullversion
-                }
-            }
-        }
-    }
-}

internal/frontend/qml/BridgeUI/qmldir

@@ -2,6 +2,7 @@ module BridgeUI
 AccountDelegate    1.0 AccountDelegate.qml
 Credits            1.0 Credits.qml
 DialogFirstStart   1.0 DialogFirstStart.qml
+DialogKeychainChange 1.0 DialogKeychainChange.qml
 DialogPortChange   1.0 DialogPortChange.qml
 DialogYesNo        1.0 DialogYesNo.qml
 DialogTLSCertInfo  1.0 DialogTLSCertInfo.qml
@@ -12,4 +13,3 @@ ManualWindow       1.0 ManualWindow.qml
 OutgoingNoEncPopup 1.0 OutgoingNoEncPopup.qml
 SettingsView       1.0 SettingsView.qml
 StatusFooter       1.0 StatusFooter.qml
-VersionInfo        1.0 VersionInfo.qml

internal/frontend/qml/Gui.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -54,13 +54,15 @@ Item {
     onWarningFlagsChanged : {
         if (gui.warningFlags==Style.okInfoBar) {
             go.normalSystray()
-        } else {
-            if ((gui.warningFlags & Style.errorInfoBar) == Style.errorInfoBar) {
-                go.errorSystray()
-            } else {
-                go.highlightSystray()
-            }
+            return
         }
+
+        if ((gui.warningFlags & Style.errorInfoBar) == Style.errorInfoBar) {
+            go.errorSystray()
+            return
+        }
+
+        go.highlightSystray()
     }
 
     // Signals from Go
@@ -105,25 +107,53 @@ Item {
             gui.openMainWindow(false)
             if (go.isConnectionOK) {
                 if( winMain.updateState=="noInternet") {
-                    go.setUpdateState("upToDate")
+                    go.updateState = "upToDate"
                 }
             } else {
-                go.setUpdateState("noInternet")
+                go.updateState = "noInternet"
             }
         }
 
-        onRunCheckVersion : {
-            gui.openMainWindow(false)
-            go.setUpdateState("upToDate")
-            winMain.dialogGlobal.state="checkUpdates"
-            winMain.dialogGlobal.show()
-            go.isNewVersionAvailable(showMessage)
-        }
+        onUpdateStateChanged : {
+            // Update tray icon if needed
+            switch (go.updateState) {
+                case "internetCheck":
+                    break;
+                case "noInternet" :
+                    gui.warningFlags |= Style.warnInfoBar
+                    break;
+                case "oldVersion":
+                    gui.warningFlags |= Style.warnInfoBar
+                    break;
+                case "forceUpdate":
+                    // Force update should presist once it happened and never be overwritten.
+                    // That means that tray icon should allways remain in error state.
+                    // But since we have only two sources of error icon in tray (force update 
+                    // + installation fail) and both are unrecoverable and we do not ever remove
+                    // error flag from gui.warningFlags - it is ok to rely on gui.warningFlags and
+                    // not on winMain.updateState (which presist forceUpdate)
+                    gui.warningFlags |= Style.errorInfoBar
+                    break;
+                case "upToDate":
+                    gui.warningFlags &= ~Style.warnInfoBar
+                    break;
+                case "updateRestart":
+                    gui.warningFlags |= Style.warnInfoBar
+                    break;
+                case "updateError":
+                    gui.warningFlags |= Style.errorInfoBar
+                    break;
+                default :
+                    break;
+            }
 
-        onSetUpdateState : {
+            // if main window is closed - most probably it is destroyed (see closeMainWindow())
+            if (winMain == null) {
+                return
+            }
             // once app is outdated prevent from state change
             if (winMain.updateState != "forceUpdate") {
-                winMain.updateState = updateState
+                winMain.updateState = go.updateState
             }
         }
 
@@ -134,13 +164,43 @@ Item {
             go.silentBubble(2,qsTr("You have the latest version!", "notification", -1))
         }
 
-        onNotifyUpdate : {
-            go.setUpdateState("forceUpdate")
+        onNotifyManualUpdate: {
+            go.updateState = "oldVersion"
+        }
+
+        onNotifyManualUpdateRestartNeeded: {
             if (!winMain.dialogUpdate.visible) {
-                gui.openMainWindow(true)
-                go.runCheckVersion(false)
                 winMain.dialogUpdate.show()
             }
+            go.updateState = "updateRestart"
+            winMain.dialogUpdate.finished(false)
+
+            // after manual update - just retart immidiatly
+            go.setToRestart()
+            Qt.quit()
+        }
+
+        onNotifyManualUpdateError: {
+            if (!winMain.dialogUpdate.visible) {
+                winMain.dialogUpdate.show()
+            }
+            go.updateState = "updateError"
+            winMain.dialogUpdate.finished(true)
+        }
+
+        onNotifyForceUpdate : {
+            go.updateState = "forceUpdate"
+            if (!winMain.dialogUpdate.visible) {
+                winMain.dialogUpdate.show()
+            }
+        }
+
+        onNotifySilentUpdateRestartNeeded: {
+            go.updateState = "updateRestart"
+        }
+
+        onNotifySilentUpdateError: {
+            go.updateState = "updateError"
         }
 
         onNotifyLogout : {
@@ -229,30 +289,14 @@ Item {
             outgoingNoEncPopup.y = y
         }
 
-        onUpdateFinished : {
-            winMain.dialogUpdate.finished(hasError)
-        }
-
         onShowCertIssue : {
             winMain.tlsBarState="notOK"
         }
 
-        onShowIMAPCertTroubleshoot : {
-            go.notifyBubble(1, qsTr(
-                "Bridge was unable to establish a connection with your Email client. <br> <a href=\"https://protonmail.com/support/knowledge-base/bridge-ssl-connection-issue\">Learn more</a> <br>",
-                "notification message"
-            ))
+        onOpenReleaseNotesExternally: {
+            Qt.openUrlExternally(go.updateReleaseNotesLink)
         }
 
-
-    }
-
-    Timer {
-        id: checkVersionTimer
-        repeat : true
-        triggeredOnStart: false
-        interval : Style.main.verCheckRepeatTime
-        onTriggered : go.runCheckVersion(false)
     }
 
     function openMainWindow(showAndRise) {
@@ -275,9 +319,17 @@ Item {
         if (showAndRise) {
             gui.winMain.showAndRise()
         }
+
+        // restore update notification bar: trigger updateStateChanged
+        var tmp = go.updateState
+        go.updateState = ""
+        go.updateState = tmp
     }
 
     function closeMainWindow () {
+        // Historical reasons: once upon a time there was a report about high GPU
+        // usage on MacOS while bridge is closed. Legends say that destroying 
+        // MainWindow solved this.
         gui.winMain.hide()
         gui.winMain.destroy(5000)
         gui.winMain = null
@@ -294,6 +346,15 @@ Item {
         winMain.bubbleNote.show()
     }
 
+    function openReleaseNotes(){
+        if (go.updateReleaseNotesLink == "") {
+            go.checkAndOpenReleaseNotes()
+            return
+        }
+        go.openReleaseNotesExternally()
+    }
+
+
     // On start
     Component.onCompleted : {
         // set  messages for translations
@@ -306,17 +367,12 @@ Item {
         go.failedAutostart        = qsTr("Unable to configure automatic start."                           , "notification", -1)
         go.genericErrSeeLogs      = qsTr("An error happened during procedure. See logs for more details." , "notification", -1)
 
+        go.guiIsReady()
+
         // start window
         gui.openMainWindow(false)
-        checkVersionTimer.start()
         if (go.isShownOnStart) {
             gui.winMain.showAndRise()
         }
-        go.runCheckVersion(false)
-
-        if (go.isFreshVersion) {
-            go.getLocalVersionInfo()
-            gui.winMain.dialogVersionInfo.show()
-        }
     }
 }

internal/frontend/qml/GuiIE.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -30,7 +30,6 @@ Item {
     id: gui
     property alias winMain: winMain
     property bool isFirstWindow: true
-    property int warningFlags: 0
 
     property var locale    : Qt.locale("en_US")
     property date netBday  : new Date("1989-03-13T00:00:00")
@@ -38,7 +37,7 @@ Item {
     property var allMonths : getMonthList(1,12)
     property var allDays   : getDayList(1,31)
 
-    property var enums : JSON.parse('{"pathOK":1,"pathEmptyPath":2,"pathWrongPath":4,"pathNotADir":8,"pathWrongPermissions":16,"pathDirEmpty":32,"errUnknownError":0,"errEventAPILogout":1,"errUpdateAPI":2,"errUpdateJSON":3,"errUserAuth":4,"errQApplication":18,"errEmailExportFailed":6,"errEmailExportMissing":7,"errNothingToImport":8,"errEmailImportFailed":12,"errDraftImportFailed":13,"errDraftLabelFailed":14,"errEncryptMessageAttachment":15,"errEncryptMessage":16,"errNoInternetWhileImport":17,"errUnlockUser":5,"errSourceMessageNotSelected":19,"errCannotParseMail":5000,"errWrongLoginOrPassword":5001,"errWrongServerPathOrPort":5002,"errWrongAuthMethod":5003,"errIMAPFetchFailed":5004,"errLocalSourceLoadFailed":1000,"errPMLoadFailed":1001,"errRemoteSourceLoadFailed":1002,"errLoadAccountList":1005,"errExit":1006,"errRetry":1007,"errAsk":1008,"errImportFailed":1009,"errCreateLabelFailed":1010,"errCreateFolderFailed":1011,"errUpdateLabelFailed":1012,"errUpdateFolderFailed":1013,"errFillFolderName":1014,"errSelectFolderColor":1015,"errNoInternet":1016,"folderTypeSystem":"system","folderTypeLabel":"label","folderTypeFolder":"folder","folderTypeExternal":"external","progressInit":"init","progressLooping":"looping","statusNoInternet":"noInternet","statusCheckingInternet":"internetCheck","statusNewVersionAvailable":"oldVersion","statusUpToDate":"upToDate","statusForceUpdate":"forceupdate"}')
+    property var enums : JSON.parse('{"pathOK":1,"pathEmptyPath":2,"pathWrongPath":4,"pathNotADir":8,"pathWrongPermissions":16,"pathDirEmpty":32,"errUnknownError":0,"errEventAPILogout":1,"errUpdateAPI":2,"errUpdateJSON":3,"errUserAuth":4,"errQApplication":18,"errEmailExportFailed":6,"errEmailExportMissing":7,"errNothingToImport":8,"errEmailImportFailed":12,"errDraftImportFailed":13,"errDraftLabelFailed":14,"errEncryptMessageAttachment":15,"errEncryptMessage":16,"errNoInternetWhileImport":17,"errUnlockUser":5,"errSourceMessageNotSelected":19,"errCannotParseMail":5000,"errWrongLoginOrPassword":5001,"errWrongServerPathOrPort":5002,"errWrongAuthMethod":5003,"errIMAPFetchFailed":5004,"errLocalSourceLoadFailed":1000,"errPMLoadFailed":1001,"errRemoteSourceLoadFailed":1002,"errLoadAccountList":1005,"errExit":1006,"errRetry":1007,"errAsk":1008,"errImportFailed":1009,"errCreateLabelFailed":1010,"errCreateFolderFailed":1011,"errUpdateLabelFailed":1012,"errUpdateFolderFailed":1013,"errFillFolderName":1014,"errSelectFolderColor":1015,"errNoInternet":1016,"folderTypeSystem":"system","folderTypeLabel":"label","folderTypeFolder":"folder","folderTypeExternal":"external","progressInit":"init","progressLooping":"looping","statusNoInternet":"noInternet","statusCheckingInternet":"internetCheck","statusNewVersionAvailable":"oldVersion","statusUpToDate":"upToDate","statusForceUpdate":"forceUpdate"}')
 
     IEStyle{}
 
@@ -69,20 +68,9 @@ Item {
     Connections {
         target: go
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+        onShowWindow : {
+            winMain.showAndRise()
+        }
 
         onProcessFinished :  {
             winMain.dialogAddUser.hide()
@@ -107,24 +95,17 @@ Item {
             go.isConnectionOK = isAvailable
             if (go.isConnectionOK) {
                 if( winMain.updateState==gui.enums.statusNoInternet) {
-                    go.setUpdateState(gui.enums.statusUpToDate)
+                    go.updateState = gui.enums.statusUpToDate
                 }
             } else {
-                go.setUpdateState(gui.enums.statusNoInternet)
+                go.updateState = gui.enums.statusNoInternet
             }
         }
 
-        onRunCheckVersion : {
-            go.setUpdateState(gui.enums.statusUpToDate)
-            winMain.dialogGlobal.state=gui.enums.statusCheckingInternet
-            winMain.dialogGlobal.show()
-            go.isNewVersionAvailable(showMessage)
-        }
-
-        onSetUpdateState : {
+        onUpdateStateChanged : {
             // once app is outdated prevent from state change
-            if (winMain.updateState != gui.enums.statusForceUpdate) {
-                winMain.updateState = updateState
+            if (winMain.updateState != "forceUpdate") {
+                winMain.updateState = go.updateState
             }
         }
 
@@ -224,15 +205,45 @@ Item {
             }
         }
 
-        onNotifyUpdate : {
-            go.setUpdateState("forceUpdate")
+        onNotifyManualUpdate: {
+            go.updateState = "oldVersion"
+        }
+
+        onNotifyManualUpdateRestartNeeded: {
+            if (!winMain.dialogUpdate.visible) {
+                winMain.dialogUpdate.show()
+            }
+            go.updateState = "updateRestart"
+            winMain.dialogUpdate.finished(false)
+        
+            // after manual update - just retart immidiatly
+            go.setToRestart()
+            Qt.quit()
+        }
+
+        onNotifyManualUpdateError: {
+            if (!winMain.dialogUpdate.visible) {
+                winMain.dialogUpdate.show()
+            }
+            go.updateState = "updateError"
+            winMain.dialogUpdate.finished(true)
+        }
+
+        onNotifyForceUpdate : {
+            go.updateState = "forceUpdate"
             if (!winMain.dialogUpdate.visible) {
-                gui.openMainWindow(true)
-                go.runCheckVersion(false)
                 winMain.dialogUpdate.show()
             }
         }
 
+        //onNotifySilentUpdateRestartNeeded: {
+        //    go.updateState = "updateRestart"
+        //}
+        //
+        //onNotifySilentUpdateError: {
+        //    go.updateState = "updateError"
+        //}
+
         onNotifyLogout : {
             go.notifyBubble(0, qsTr("Account %1 has been disconnected. Please log in to continue to use the Import-Export app with this account.").arg(accname) )
         }
@@ -276,6 +287,16 @@ Item {
                 winMain.dialogExport.hide()
             }
         }
+
+        onUpdateFinished : {
+            winMain.dialogUpdate.finished(hasError)
+        }
+
+        onOpenReleaseNotesExternally: {
+            Qt.openUrlExternally(go.updateReleaseNotesLink)
+        }
+
+
     }
 
     function folderIcon(folderName, folderType) { // translations
@@ -389,14 +410,15 @@ Item {
      }
      */
 
-    Timer {
-        id: checkVersionTimer
-        repeat : true
-        triggeredOnStart: false
-        interval : Style.main.verCheckRepeatTime
-        onTriggered : go.runCheckVersion(false)
+    function openReleaseNotes(){
+        if (go.updateReleaseNotesLink == "") {
+            go.checkAndOpenReleaseNotes()
+            return
+        }
+        go.openReleaseNotesExternally()
     }
 
+
     property string  areYouSureYouWantToQuit : qsTr("There are incomplete processes - some items are not yet transferred. Do you really want to stop and quit?")
     // On start
     Component.onCompleted : {
@@ -409,8 +431,8 @@ Item {
         go.bugNotSent             = qsTr("Unable to submit bug report."                                  , "notification", -1)
         go.bugReportSent          = qsTr("Bug report successfully sent."                                 , "notification", -1)
 
-        go.runCheckVersion(false)
-        checkVersionTimer.start()
+
+        go.guiIsReady()
 
         gui.allMonths = getMonthList(1,12)
         gui.allMonthsChanged()

internal/frontend/qml/ImportExportUI/AccountDelegate.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //
@@ -165,6 +165,7 @@ Column {
             textColor : Style.main.textBlue
             onClicked: {
                 dialogExport.currentIndex = 0
+                dialogExport.account = account
                 dialogExport.address = account
                 dialogExport.show()
             }
@@ -321,6 +322,7 @@ Column {
                         textBold: true
                         textColor: Style.main.textBlue
                         onClicked: {
+                            dialogExport.account = account
                             dialogExport.address = listalias[index]
                             dialogExport.show()
                         }
@@ -339,6 +341,7 @@ Column {
                         textBold: true
                         textColor: enabled ? Style.main.textBlue : Style.main.textDisabled
                         onClicked: {
+                            dialogImport.account = account
                             dialogImport.address = listalias[index]
                             dialogImport.show()
                         }

internal/frontend/qml/ImportExportUI/Credits.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/ImportExportUI/DateBox.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //

internal/frontend/qml/ImportExportUI/DateInput.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2020 Proton Technologies AG
+// Copyright (c) 2021 Proton Technologies AG
 //
 // This file is part of ProtonMail Bridge.
 //