1 files changed, 255 insertions, 0 deletions
diff --git a/browser/components/migration/FirefoxProfileMigrator.js b/browser/components/migration/FirefoxProfileMigrator.js
new file mode 100644
index 000000000..60ffcf627
--- /dev/null
+++ b/browser/components/migration/FirefoxProfileMigrator.js
@@ -0,0 +1,255 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+ * vim: sw=2 ts=2 sts=2 et */
+ /* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/*
+ * Migrates from a Firefox profile in a lossy manner in order to clean up a
+ * user's profile.  Data is only migrated where the benefits outweigh the
+ * potential problems caused by importing undesired/invalid configurations
+ * from the source profile.
+ */
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource:///modules/MigrationUtils.jsm"); /* globals MigratorPrototype */
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesBackups",
+                                  "resource://gre/modules/PlacesBackups.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "SessionMigration",
+                                  "resource:///modules/sessionstore/SessionMigration.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ProfileAge",
+                                  "resource://gre/modules/ProfileAge.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
+                                  "resource://gre/modules/AppConstants.jsm");
+
+
+function FirefoxProfileMigrator() {
+  this.wrappedJSObject = this; // for testing...
+}
+
+FirefoxProfileMigrator.prototype = Object.create(MigratorPrototype);
+
+FirefoxProfileMigrator.prototype._getAllProfiles = function() {
+  let allProfiles = new Map();
+  let profiles =
+    Components.classes["@mozilla.org/toolkit/profile-service;1"]
+              .getService(Components.interfaces.nsIToolkitProfileService)
+              .profiles;
+  while (profiles.hasMoreElements()) {
+    let profile = profiles.getNext().QueryInterface(Ci.nsIToolkitProfile);
+    let rootDir = profile.rootDir;
+
+    if (rootDir.exists() && rootDir.isReadable() &&
+        !rootDir.equals(MigrationUtils.profileStartup.directory)) {
+      allProfiles.set(profile.name, rootDir);
+    }
+  }
+  return allProfiles;
+};
+
+function sorter(a, b) {
+  return a.id.toLocaleLowerCase().localeCompare(b.id.toLocaleLowerCase());
+}
+
+Object.defineProperty(FirefoxProfileMigrator.prototype, "sourceProfiles", {
+  get: function() {
+    return [...this._getAllProfiles().keys()].map(x => ({id: x, name: x})).sort(sorter);
+  }
+});
+
+FirefoxProfileMigrator.prototype._getFileObject = function(dir, fileName) {
+  let file = dir.clone();
+  file.append(fileName);
+
+  // File resources are monolithic.  We don't make partial copies since
+  // they are not expected to work alone. Return null to avoid trying to
+  // copy non-existing files.
+  return file.exists() ? file : null;
+};
+
+FirefoxProfileMigrator.prototype.getResources = function(aProfile) {
+  let sourceProfileDir = aProfile ? this._getAllProfiles().get(aProfile.id) :
+    Components.classes["@mozilla.org/toolkit/profile-service;1"]
+              .getService(Components.interfaces.nsIToolkitProfileService)
+              .selectedProfile.rootDir;
+  if (!sourceProfileDir || !sourceProfileDir.exists() ||
+      !sourceProfileDir.isReadable())
+    return null;
+
+  // Being a startup-only migrator, we can rely on
+  // MigrationUtils.profileStartup being set.
+  let currentProfileDir = MigrationUtils.profileStartup.directory;
+
+  // Surely data cannot be imported from the current profile.
+  if (sourceProfileDir.equals(currentProfileDir))
+    return null;
+
+  return this._getResourcesInternal(sourceProfileDir, currentProfileDir);
+};
+
+FirefoxProfileMigrator.prototype.getLastUsedDate = function() {
+  // We always pretend we're really old, so that we don't mess
+  // up the determination of which browser is the most 'recent'
+  // to import from.
+  return Promise.resolve(new Date(0));
+};
+
+FirefoxProfileMigrator.prototype._getResourcesInternal = function(sourceProfileDir, currentProfileDir) {
+  let getFileResource = function(aMigrationType, aFileNames) {
+    let files = [];
+    for (let fileName of aFileNames) {
+      let file = this._getFileObject(sourceProfileDir, fileName);
+      if (file)
+        files.push(file);
+    }
+    if (!files.length) {
+      return null;
+    }
+    return {
+      type: aMigrationType,
+      migrate: function(aCallback) {
+        for (let file of files) {
+          file.copyTo(currentProfileDir, "");
+        }
+        aCallback(true);
+      }
+    };
+  }.bind(this);
+
+  let types = MigrationUtils.resourceTypes;
+  let places = getFileResource(types.HISTORY, ["places.sqlite", "places.sqlite-wal"]);
+  let cookies = getFileResource(types.COOKIES, ["cookies.sqlite", "cookies.sqlite-wal"]);
+  let passwords = getFileResource(types.PASSWORDS,
+                                  ["signons.sqlite", "logins.json", "key3.db",
+                                   "signedInUser.json"]);
+  let formData = getFileResource(types.FORMDATA, ["formhistory.sqlite"]);
+  let bookmarksBackups = getFileResource(types.OTHERDATA,
+    [PlacesBackups.profileRelativeFolderPath]);
+  let dictionary = getFileResource(types.OTHERDATA, ["persdict.dat"]);
+
+  let sessionCheckpoints = this._getFileObject(sourceProfileDir, "sessionCheckpoints.json");
+  let sessionFile = this._getFileObject(sourceProfileDir, "sessionstore.js");
+  let session;
+  if (sessionFile) {
+    session = {
+      type: types.SESSION,
+      migrate: function(aCallback) {
+        sessionCheckpoints.copyTo(currentProfileDir, "sessionCheckpoints.json");
+        let newSessionFile = currentProfileDir.clone();
+        newSessionFile.append("sessionstore.js");
+        let migrationPromise = SessionMigration.migrate(sessionFile.path, newSessionFile.path);
+        migrationPromise.then(function() {
+          let buildID = Services.appinfo.platformBuildID;
+          let mstone = Services.appinfo.platformVersion;
+          // Force the browser to one-off resume the session that we give it:
+          Services.prefs.setBoolPref("browser.sessionstore.resume_session_once", true);
+          // Reset the homepage_override prefs so that the browser doesn't override our
+          // session with the "what's new" page:
+          Services.prefs.setCharPref("browser.startup.homepage_override.mstone", mstone);
+          Services.prefs.setCharPref("browser.startup.homepage_override.buildID", buildID);
+          // It's too early in startup for the pref service to have a profile directory,
+          // so we have to manually tell it where to save the prefs file.
+          let newPrefsFile = currentProfileDir.clone();
+          newPrefsFile.append("prefs.js");
+          Services.prefs.savePrefFile(newPrefsFile);
+          aCallback(true);
+        }, function() {
+          aCallback(false);
+        });
+      }
+    };
+  }
+
+  // Telemetry related migrations.
+  let times = {
+    name: "times", // name is used only by tests.
+    type: types.OTHERDATA,
+    migrate: aCallback => {
+      let file = this._getFileObject(sourceProfileDir, "times.json");
+      if (file) {
+        file.copyTo(currentProfileDir, "");
+      }
+      // And record the fact a migration (ie, a reset) happened.
+      let timesAccessor = new ProfileAge(currentProfileDir.path);
+      timesAccessor.recordProfileReset().then(
+        () => aCallback(true),
+        () => aCallback(false)
+      );
+    }
+  };
+  let telemetry = {
+    name: "telemetry", // name is used only by tests...
+    type: types.OTHERDATA,
+    migrate: aCallback => {
+      let createSubDir = (name) => {
+        let dir = currentProfileDir.clone();
+        dir.append(name);
+        dir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+        return dir;
+      };
+
+      // If the 'datareporting' directory exists we migrate files from it.
+      let haveStateFile = false;
+      let dataReportingDir = this._getFileObject(sourceProfileDir, "datareporting");
+      if (dataReportingDir && dataReportingDir.isDirectory()) {
+        // Copy only specific files.
+        let toCopy = ["state.json", "session-state.json"];
+
+        let dest = createSubDir("datareporting");
+        let enumerator = dataReportingDir.directoryEntries;
+        while (enumerator.hasMoreElements()) {
+          let file = enumerator.getNext().QueryInterface(Ci.nsIFile);
+          if (file.isDirectory() || toCopy.indexOf(file.leafName) == -1) {
+            continue;
+          }
+
+          if (file.leafName == "state.json") {
+            haveStateFile = true;
+          }
+          file.copyTo(dest, "");
+        }
+      }
+
+      if (!haveStateFile) {
+        // Fall back to migrating the state file that contains the client id from healthreport/.
+        // We first moved the client id management from the FHR implementation to the datareporting
+        // service.
+        // Consequently, we try to migrate an existing FHR state file here as a fallback.
+        let healthReportDir = this._getFileObject(sourceProfileDir, "healthreport");
+        if (healthReportDir && healthReportDir.isDirectory()) {
+          let stateFile = this._getFileObject(healthReportDir, "state.json");
+          if (stateFile) {
+            let dest = createSubDir("healthreport");
+            stateFile.copyTo(dest, "");
+          }
+        }
+      }
+
+      aCallback(true);
+    }
+  };
+
+  return [places, cookies, passwords, formData, dictionary, bookmarksBackups,
+          session, times, telemetry].filter(r => r);
+};
+
+Object.defineProperty(FirefoxProfileMigrator.prototype, "startupOnlyMigrator", {
+  get: () => true
+});
+
+
+FirefoxProfileMigrator.prototype.classDescription = "Firefox Profile Migrator";
+FirefoxProfileMigrator.prototype.contractID = "@mozilla.org/profile/migrator;1?app=browser&type=firefox";
+FirefoxProfileMigrator.prototype.classID = Components.ID("{91185366-ba97-4438-acba-48deaca63386}");
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([FirefoxProfileMigrator]);