Verified Commit 05ba0e34 authored by Pier Angelo Vendrame's avatar Pier Angelo Vendrame 🎃
Browse files

Bug 41435: Add a Tor Browser migration function 

For now this function only deletes old language packs for which we are
already packaging the strings with the application.
parent be40dcfc

browser/components/BrowserGlue.jsm

+41 −0
Original line number Diff line number Diff line
@@ -1274,6 +1274,10 @@ BrowserGlue.prototype = { 
    // handle any UI migration

    this._migrateUI();



    // Handle any TBB-specific migration before showing the UI. Keep after

    // _migrateUI to make sure this._isNewProfile has been defined.

    this._migrateUITBB();



    // Clear possibly auto enabled enterprise_roots prefs (see bug 40166)

    if (

      !Services.prefs.getBoolPref(
@@ -4283,6 +4287,43 @@ BrowserGlue.prototype = { 
    Services.prefs.setIntPref("browser.migration.version", UI_VERSION);

  },



  // Use this method for any TBB migration that can be run just before showing

  // the UI.

  // Anything that critically needs to be migrated earlier should not use this.

  _migrateUITBB() {

    // Version 1: Tor Browser 12.0. We use it to remove langpacks, after the

    //            migration to packaged locales.

    const TBB_MIGRATION_VERSION = 1;

    const MIGRATION_PREF = "torbrowser.migration.version";



    // If we decide to force updating users to pass through any version

    // following 12.0, we can remove this check, and check only whether

    // MIGRATION_PREF has a user value, like Mozilla does.

    if (this._isNewProfile) {

      // Do not migrate fresh profiles

      Services.prefs.setIntPref(MIGRATION_PREF, TBB_MIGRATION_VERSION);

      return;

    } else if (this._isNewProfile === undefined) {

      // If this happens, check if upstream updated their function and do not

      // set this member anymore!

      console.error("_migrateUITBB: this._isNewProfile is undefined.");

    }



    const currentVersion = Services.prefs.getIntPref(MIGRATION_PREF, 0);

    const removeLangpacks = async () => {

      for (const addon of await AddonManager.getAddonsByTypes(["locale"])) {

        await addon.uninstall();

      }

    };

    if (currentVersion < 1) {

      removeLangpacks().catch(err => {

        console.error("Could not remove langpacks", err);

      });

    }



    Services.prefs.setIntPref(MIGRATION_PREF, TBB_MIGRATION_VERSION);

  },



  async _showUpgradeDialog() {

    const data = await OnboardingMessageProvider.getUpgradeMessage();

    const win = BrowserWindowTracker.getTopWindow();