mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-10 12:46:46 +00:00
125 lines
3.3 KiB
Go
125 lines
3.3 KiB
Go
// Copyright (c) 2024 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package updater
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"github.com/Masterminds/semver/v3"
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"github.com/ProtonMail/gopenpgp/v2/crypto"
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"github.com/ProtonMail/proton-bridge/v3/internal/versioner"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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var (
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ErrDownloadVerify = errors.New("failed to download or verify the update")
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ErrInstall = errors.New("failed to install the update")
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ErrUpdateAlreadyInstalled = errors.New("update is already installed")
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)
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type Downloader interface {
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DownloadAndVerify(ctx context.Context, kr *crypto.KeyRing, url, sig string) ([]byte, error)
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}
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type Installer interface {
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IsAlreadyInstalled(*semver.Version) bool
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InstallUpdate(*semver.Version, io.Reader) error
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}
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type Updater struct {
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versioner *versioner.Versioner
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installer Installer
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verifier *crypto.KeyRing
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product string
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platform string
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}
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func NewUpdater(ver *versioner.Versioner, verifier *crypto.KeyRing, product, platform string) *Updater {
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return &Updater{
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versioner: ver,
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installer: NewInstaller(ver),
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verifier: verifier,
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product: product,
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platform: platform,
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}
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}
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func (u *Updater) GetVersionInfo(ctx context.Context, downloader Downloader, channel Channel) (VersionInfo, error) {
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b, err := downloader.DownloadAndVerify(
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ctx,
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u.verifier,
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u.getVersionFileURL(),
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u.getVersionFileURL()+".sig",
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)
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if err != nil {
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return VersionInfo{}, err
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}
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var versionMap VersionMap
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if err := json.Unmarshal(b, &versionMap); err != nil {
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return VersionInfo{}, err
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}
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version, ok := versionMap[channel]
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if !ok {
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return VersionInfo{}, errors.New("no updates available for this channel")
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}
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return version, nil
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}
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func (u *Updater) InstallUpdate(ctx context.Context, downloader Downloader, update VersionInfo) error {
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if u.installer.IsAlreadyInstalled(update.Version) {
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return ErrUpdateAlreadyInstalled
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}
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b, err := downloader.DownloadAndVerify(
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ctx,
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u.verifier,
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update.Package,
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update.Package+".sig",
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)
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if err != nil {
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return ErrDownloadVerify
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}
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if err := u.installer.InstallUpdate(update.Version, bytes.NewReader(b)); err != nil {
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logrus.WithError(err).Error("Failed to install update")
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return ErrInstall
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}
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return nil
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}
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func (u *Updater) RemoveOldUpdates() error {
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return u.versioner.RemoveOldVersions()
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}
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// getVersionFileURL returns the URL of the version file.
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// For example:
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// - https://protonmail.com/download/bridge/version_linux.json
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func (u *Updater) getVersionFileURL() string {
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return fmt.Sprintf("%v/%v/version_%v.json", Host, u.product, u.platform)
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}
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