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