1 files changed, 371 insertions, 0 deletions
diff --git a/services/sync/modules/engines/passwords.js b/services/sync/modules/engines/passwords.js
new file mode 100644
index 000000000..51db49a0a
--- /dev/null
+++ b/services/sync/modules/engines/passwords.js
@@ -0,0 +1,371 @@
+/* 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/. */
+
+this.EXPORTED_SYMBOLS = ['PasswordEngine', 'LoginRec', 'PasswordValidator'];
+
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://services-sync/record.js");
+Cu.import("resource://services-sync/constants.js");
+Cu.import("resource://services-sync/collection_validator.js");
+Cu.import("resource://services-sync/engines.js");
+Cu.import("resource://services-sync/util.js");
+Cu.import("resource://services-common/async.js");
+
+this.LoginRec = function LoginRec(collection, id) {
+  CryptoWrapper.call(this, collection, id);
+}
+LoginRec.prototype = {
+  __proto__: CryptoWrapper.prototype,
+  _logName: "Sync.Record.Login",
+};
+
+Utils.deferGetSet(LoginRec, "cleartext", [
+    "hostname", "formSubmitURL",
+    "httpRealm", "username", "password", "usernameField", "passwordField",
+    "timeCreated", "timePasswordChanged",
+    ]);
+
+
+this.PasswordEngine = function PasswordEngine(service) {
+  SyncEngine.call(this, "Passwords", service);
+}
+PasswordEngine.prototype = {
+  __proto__: SyncEngine.prototype,
+  _storeObj: PasswordStore,
+  _trackerObj: PasswordTracker,
+  _recordObj: LoginRec,
+
+  applyIncomingBatchSize: PASSWORDS_STORE_BATCH_SIZE,
+
+  syncPriority: 2,
+
+  _syncFinish: function () {
+    SyncEngine.prototype._syncFinish.call(this);
+
+    // Delete the Weave credentials from the server once.
+    if (!Svc.Prefs.get("deletePwdFxA", false)) {
+      try {
+        let ids = [];
+        for (let host of Utils.getSyncCredentialsHosts()) {
+          for (let info of Services.logins.findLogins({}, host, "", "")) {
+            ids.push(info.QueryInterface(Components.interfaces.nsILoginMetaInfo).guid);
+          }
+        }
+        if (ids.length) {
+          let coll = new Collection(this.engineURL, null, this.service);
+          coll.ids = ids;
+          let ret = coll.delete();
+          this._log.debug("Delete result: " + ret);
+          if (!ret.success && ret.status != 400) {
+            // A non-400 failure means try again next time.
+            return;
+          }
+        } else {
+          this._log.debug("Didn't find any passwords to delete");
+        }
+        // If there were no ids to delete, or we succeeded, or got a 400,
+        // record success.
+        Svc.Prefs.set("deletePwdFxA", true);
+        Svc.Prefs.reset("deletePwd"); // The old prefname we previously used.
+      } catch (ex) {
+        if (Async.isShutdownException(ex)) {
+          throw ex;
+        }
+        this._log.debug("Password deletes failed", ex);
+      }
+    }
+  },
+
+  _findDupe: function (item) {
+    let login = this._store._nsLoginInfoFromRecord(item);
+    if (!login) {
+      return;
+    }
+
+    let logins = Services.logins.findLogins({}, login.hostname, login.formSubmitURL, login.httpRealm);
+
+    this._store._sleep(0); // Yield back to main thread after synchronous operation.
+
+    // Look for existing logins that match the hostname, but ignore the password.
+    for (let local of logins) {
+      if (login.matches(local, true) && local instanceof Ci.nsILoginMetaInfo) {
+        return local.guid;
+      }
+    }
+  },
+};
+
+function PasswordStore(name, engine) {
+  Store.call(this, name, engine);
+  this._nsLoginInfo = new Components.Constructor("@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo, "init");
+}
+PasswordStore.prototype = {
+  __proto__: Store.prototype,
+
+  _newPropertyBag: function () {
+    return Cc["@mozilla.org/hash-property-bag;1"].createInstance(Ci.nsIWritablePropertyBag2);
+  },
+
+  /**
+   * Return an instance of nsILoginInfo (and, implicitly, nsILoginMetaInfo).
+   */
+  _nsLoginInfoFromRecord: function (record) {
+    function nullUndefined(x) {
+      return (x == undefined) ? null : x;
+    }
+
+    if (record.formSubmitURL && record.httpRealm) {
+      this._log.warn("Record " + record.id + " has both formSubmitURL and httpRealm. Skipping.");
+      return null;
+    }
+
+    // Passing in "undefined" results in an empty string, which later
+    // counts as a value. Explicitly `|| null` these fields according to JS
+    // truthiness. Records with empty strings or null will be unmolested.
+    let info = new this._nsLoginInfo(record.hostname,
+                                     nullUndefined(record.formSubmitURL),
+                                     nullUndefined(record.httpRealm),
+                                     record.username,
+                                     record.password,
+                                     record.usernameField,
+                                     record.passwordField);
+
+    info.QueryInterface(Ci.nsILoginMetaInfo);
+    info.guid = record.id;
+    if (record.timeCreated) {
+      info.timeCreated = record.timeCreated;
+    }
+    if (record.timePasswordChanged) {
+      info.timePasswordChanged = record.timePasswordChanged;
+    }
+
+    return info;
+  },
+
+  _getLoginFromGUID: function (id) {
+    let prop = this._newPropertyBag();
+    prop.setPropertyAsAUTF8String("guid", id);
+
+    let logins = Services.logins.searchLogins({}, prop);
+    this._sleep(0); // Yield back to main thread after synchronous operation.
+
+    if (logins.length > 0) {
+      this._log.trace(logins.length + " items matching " + id + " found.");
+      return logins[0];
+    }
+
+    this._log.trace("No items matching " + id + " found. Ignoring");
+    return null;
+  },
+
+  getAllIDs: function () {
+    let items = {};
+    let logins = Services.logins.getAllLogins({});
+
+    for (let i = 0; i < logins.length; i++) {
+      // Skip over Weave password/passphrase entries.
+      let metaInfo = logins[i].QueryInterface(Ci.nsILoginMetaInfo);
+      if (Utils.getSyncCredentialsHosts().has(metaInfo.hostname)) {
+        continue;
+      }
+
+      items[metaInfo.guid] = metaInfo;
+    }
+
+    return items;
+  },
+
+  changeItemID: function (oldID, newID) {
+    this._log.trace("Changing item ID: " + oldID + " to " + newID);
+
+    let oldLogin = this._getLoginFromGUID(oldID);
+    if (!oldLogin) {
+      this._log.trace("Can't change item ID: item doesn't exist");
+      return;
+    }
+    if (this._getLoginFromGUID(newID)) {
+      this._log.trace("Can't change item ID: new ID already in use");
+      return;
+    }
+
+    let prop = this._newPropertyBag();
+    prop.setPropertyAsAUTF8String("guid", newID);
+
+    Services.logins.modifyLogin(oldLogin, prop);
+  },
+
+  itemExists: function (id) {
+    return !!this._getLoginFromGUID(id);
+  },
+
+  createRecord: function (id, collection) {
+    let record = new LoginRec(collection, id);
+    let login = this._getLoginFromGUID(id);
+
+    if (!login) {
+      record.deleted = true;
+      return record;
+    }
+
+    record.hostname = login.hostname;
+    record.formSubmitURL = login.formSubmitURL;
+    record.httpRealm = login.httpRealm;
+    record.username = login.username;
+    record.password = login.password;
+    record.usernameField = login.usernameField;
+    record.passwordField = login.passwordField;
+
+    // Optional fields.
+    login.QueryInterface(Ci.nsILoginMetaInfo);
+    record.timeCreated = login.timeCreated;
+    record.timePasswordChanged = login.timePasswordChanged;
+
+    return record;
+  },
+
+  create: function (record) {
+    let login = this._nsLoginInfoFromRecord(record);
+    if (!login) {
+      return;
+    }
+
+    this._log.debug("Adding login for " + record.hostname);
+    this._log.trace("httpRealm: " + JSON.stringify(login.httpRealm) + "; " +
+                    "formSubmitURL: " + JSON.stringify(login.formSubmitURL));
+    try {
+      Services.logins.addLogin(login);
+    } catch(ex) {
+      this._log.debug(`Adding record ${record.id} resulted in exception`, ex);
+    }
+  },
+
+  remove: function (record) {
+    this._log.trace("Removing login " + record.id);
+
+    let loginItem = this._getLoginFromGUID(record.id);
+    if (!loginItem) {
+      this._log.trace("Asked to remove record that doesn't exist, ignoring");
+      return;
+    }
+
+    Services.logins.removeLogin(loginItem);
+  },
+
+  update: function (record) {
+    let loginItem = this._getLoginFromGUID(record.id);
+    if (!loginItem) {
+      this._log.debug("Skipping update for unknown item: " + record.hostname);
+      return;
+    }
+
+    this._log.debug("Updating " + record.hostname);
+    let newinfo = this._nsLoginInfoFromRecord(record);
+    if (!newinfo) {
+      return;
+    }
+
+    try {
+      Services.logins.modifyLogin(loginItem, newinfo);
+    } catch(ex) {
+      this._log.debug(`Modifying record ${record.id} resulted in exception; not modifying`, ex);
+    }
+  },
+
+  wipe: function () {
+    Services.logins.removeAllLogins();
+  },
+};
+
+function PasswordTracker(name, engine) {
+  Tracker.call(this, name, engine);
+  Svc.Obs.add("weave:engine:start-tracking", this);
+  Svc.Obs.add("weave:engine:stop-tracking", this);
+}
+PasswordTracker.prototype = {
+  __proto__: Tracker.prototype,
+
+  startTracking: function () {
+    Svc.Obs.add("passwordmgr-storage-changed", this);
+  },
+
+  stopTracking: function () {
+    Svc.Obs.remove("passwordmgr-storage-changed", this);
+  },
+
+  observe: function (subject, topic, data) {
+    Tracker.prototype.observe.call(this, subject, topic, data);
+
+    if (this.ignoreAll) {
+      return;
+    }
+
+    // A single add, remove or change or removing all items
+    // will trigger a sync for MULTI_DEVICE.
+    switch (data) {
+      case "modifyLogin":
+        subject = subject.QueryInterface(Ci.nsIArray).queryElementAt(1, Ci.nsILoginMetaInfo);
+        // Fall through.
+      case "addLogin":
+      case "removeLogin":
+        // Skip over Weave password/passphrase changes.
+        subject.QueryInterface(Ci.nsILoginMetaInfo).QueryInterface(Ci.nsILoginInfo);
+        if (Utils.getSyncCredentialsHosts().has(subject.hostname)) {
+          break;
+        }
+
+        this.score += SCORE_INCREMENT_XLARGE;
+        this._log.trace(data + ": " + subject.guid);
+        this.addChangedID(subject.guid);
+        break;
+      case "removeAllLogins":
+        this._log.trace(data);
+        this.score += SCORE_INCREMENT_XLARGE;
+        break;
+    }
+  },
+};
+
+class PasswordValidator extends CollectionValidator {
+  constructor() {
+    super("passwords", "id", [
+      "hostname",
+      "formSubmitURL",
+      "httpRealm",
+      "password",
+      "passwordField",
+      "username",
+      "usernameField",
+    ]);
+  }
+
+  getClientItems() {
+    let logins = Services.logins.getAllLogins({});
+    let syncHosts = Utils.getSyncCredentialsHosts()
+    let result = logins.map(l => l.QueryInterface(Ci.nsILoginMetaInfo))
+                       .filter(l => !syncHosts.has(l.hostname));
+    return Promise.resolve(result);
+  }
+
+  normalizeClientItem(item) {
+    return {
+      id: item.guid,
+      guid: item.guid,
+      hostname: item.hostname,
+      formSubmitURL: item.formSubmitURL,
+      httpRealm: item.httpRealm,
+      password: item.password,
+      passwordField: item.passwordField,
+      username: item.username,
+      usernameField: item.usernameField,
+      original: item,
+    }
+  }
+
+  normalizeServerItem(item) {
+    return Object.assign({ guid: item.id }, item);
+  }
+}
+
+