1 files changed, 136 insertions, 0 deletions
diff --git a/toolkit/components/passwordmgr/LoginStore.jsm b/toolkit/components/passwordmgr/LoginStore.jsm
new file mode 100644
index 000000000..9fa6e7dff
--- /dev/null
+++ b/toolkit/components/passwordmgr/LoginStore.jsm
@@ -0,0 +1,136 @@
+/* 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/. */
+
+/**
+ * Handles serialization of the data and persistence into a file.
+ *
+ * The file is stored in JSON format, without indentation, using UTF-8 encoding.
+ * With indentation applied, the file would look like this:
+ *
+ * {
+ *   "logins": [
+ *     {
+ *       "id": 2,
+ *       "hostname": "http://www.example.com",
+ *       "httpRealm": null,
+ *       "formSubmitURL": "http://www.example.com/submit-url",
+ *       "usernameField": "username_field",
+ *       "passwordField": "password_field",
+ *       "encryptedUsername": "...",
+ *       "encryptedPassword": "...",
+ *       "guid": "...",
+ *       "encType": 1,
+ *       "timeCreated": 1262304000000,
+ *       "timeLastUsed": 1262304000000,
+ *       "timePasswordChanged": 1262476800000,
+ *       "timesUsed": 1
+ *     },
+ *     {
+ *       "id": 4,
+ *       (...)
+ *     }
+ *   ],
+ *   "disabledHosts": [
+ *     "http://www.example.org",
+ *     "http://www.example.net"
+ *   ],
+ *   "nextId": 10,
+ *   "version": 1
+ * }
+ */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [
+  "LoginStore",
+];
+
+// Globals
+
+const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "JSONFile",
+                                  "resource://gre/modules/JSONFile.jsm");
+
+/**
+ * Current data version assigned by the code that last touched the data.
+ *
+ * This number should be updated only when it is important to understand whether
+ * an old version of the code has touched the data, for example to execute an
+ * update logic.  In most cases, this number should not be changed, in
+ * particular when no special one-time update logic is needed.
+ *
+ * For example, this number should NOT be changed when a new optional field is
+ * added to a login entry.
+ */
+const kDataVersion = 2;
+
+// The permission type we store in the permission manager.
+const PERMISSION_SAVE_LOGINS = "login-saving";
+
+// LoginStore
+
+/**
+ * Inherits from JSONFile and handles serialization of login-related data and
+ * persistence into a file.
+ *
+ * @param aPath
+ *        String containing the file path where data should be saved.
+ */
+function LoginStore(aPath) {
+  JSONFile.call(this, {
+    path: aPath,
+    dataPostProcessor: this._dataPostProcessor.bind(this)
+  });
+}
+
+LoginStore.prototype = Object.create(JSONFile.prototype);
+LoginStore.prototype.constructor = LoginStore;
+
+/**
+ * Synchronously work on the data just loaded into memory.
+ */
+LoginStore.prototype._dataPostProcessor = function(data) {
+  if (data.nextId === undefined) {
+    data.nextId = 1;
+  }
+
+  // Create any arrays that are not present in the saved file.
+  if (!data.logins) {
+    data.logins = [];
+  }
+
+  // Stub needed for login imports before data has been migrated.
+  if (!data.disabledHosts) {
+    data.disabledHosts = [];
+  }
+
+  if (data.version === 1) {
+    this._migrateDisabledHosts(data);
+  }
+
+  // Indicate that the current version of the code has touched the file.
+  data.version = kDataVersion;
+
+  return data;
+};
+
+/**
+ * Migrates disabled hosts to the permission manager.
+ */
+LoginStore.prototype._migrateDisabledHosts = function (data) {
+  for (let host of data.disabledHosts) {
+    try {
+      let uri = Services.io.newURI(host, null, null);
+      Services.perms.add(uri, PERMISSION_SAVE_LOGINS, Services.perms.DENY_ACTION);
+    } catch (e) {
+      Cu.reportError(e);
+    }
+  }
+
+  delete data.disabledHosts;
+};