90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
// TODO: auto detect vfs lock then switch or not to watch© places
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package mozilla
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import (
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"errors"
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"fmt"
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"path"
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"github.com/blob42/gosuki/internal/utils"
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)
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const (
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// This option disables the VFS lock on firefox
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// Sqlite allows file locking of the database using the local file system VFS.
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// Previous versions of FF allowed external processes to access the file.
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//
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// Since firefox v(63) this has changed. When initializing the database FF checks
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// the preference option `storage.multiProcessAccess.enabled` which is not
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// documented officially.
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//
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// Source code:
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//- https://dxr.mozilla.org/mozilla-central/source/storage/TelemetryVFS.cpp#884
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//- https://dxr.mozilla.org/mozilla-central/source/storage/mozStorageService.cpp#377
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//- Change on github: https://github.com/mozilla/gecko-dev/commit/a543f35d4be483b19446304f52e4781d7a4a0a2f
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PrefMultiProcessAccess = "storage.multiProcessAccess.enabled"
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)
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var (
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ErrMultiProcessAlreadyEnabled = errors.New("multiProcessAccess already enabled")
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)
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// TEST:
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// TODO!:
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func CheckVFSLock(bkDir string) error {
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log.Debugf("TODO: checking VFS for <%s>", bkDir)
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return nil
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}
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func UnlockPlaces(bkDir string) error {
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log.Debugf("Unlocking VFS <%s>", path.Join(bkDir, PrefsFile))
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prefsPath := path.Join(bkDir, PrefsFile)
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// Find if multiProcessAccess option is defined
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pref, err := GetPrefBool(prefsPath, PrefMultiProcessAccess)
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if err != nil && err != ErrPrefNotFound {
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return err
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}
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// If pref already defined and true raise an error
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if pref {
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log.Warningf("pref <%s> already defined as <%v>",
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PrefMultiProcessAccess, pref)
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return nil
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// Set the preference
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} else {
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// Checking if firefox is running
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// TODO: #multiprocess add CLI to unlock places.sqlite
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pusers, err := utils.FileProcessUsers(path.Join(bkDir, PlacesFile))
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if err != nil {
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log.Error(err)
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}
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for pid, p := range pusers {
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pname, err := p.Name()
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if err != nil {
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log.Error(err)
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}
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return errors.New(fmt.Sprintf("multiprocess not enabled and %s(%d) is running. Close firefox and disable VFS lock", pname, pid))
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}
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// End testing
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// enable multi process access in firefox
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err = SetPrefBool(prefsPath,
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PrefMultiProcessAccess,
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true)
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if err != nil {
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return err
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}
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}
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return nil
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}
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