1 files changed, 133 insertions, 0 deletions
diff --git a/src/js/socialwidgetloader.js b/src/js/socialwidgetloader.js
new file mode 100644
index 0000000..11f9bce
--- /dev/null
+++ b/src/js/socialwidgetloader.js
@@ -0,0 +1,133 @@
+/*
+ * This file is part of Privacy Badger <https://www.eff.org/privacybadger>
+ * Copyright (C) 2014 Electronic Frontier Foundation
+ * Derived from ShareMeNot
+ * Copyright (C) 2011-2014 University of Washington
+ *
+ * Privacy Badger is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Privacy Badger is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Privacy Badger.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * ShareMeNot is licensed under the MIT license:
+ * http://www.opensource.org/licenses/mit-license.php
+ *
+ * Copyright (c) 2011-2014 University of Washington
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+/* globals log:false */
+
+require.scopes.widgetloader = (function () {
+
+let utils = require('utils');
+
+let exports = {
+  initializeWidgets,
+  loadWidgetsFromFile,
+};
+
+/**
+ * Returns the contents of the file at filePath.
+ *
+ * @param {String} filePath the path to the file
+ * @param {Function} callback callback(responseText)
+ */
+function getFileContents(filePath, callback) {
+  let url = chrome.runtime.getURL(filePath);
+  utils.xhrRequest(url, function (err, responseText) {
+    if (err) {
+      console.error(
+        "Problem fetching contents of file at",
+        filePath,
+        err.status,
+        err.message
+      );
+    } else {
+      callback(responseText);
+    }
+  });
+}
+
+/**
+ * @param {String} file_path the path to the JSON file
+ * @returns {Promise} resolved with an array of SocialWidget objects
+ */
+function loadWidgetsFromFile(file_path) {
+  return new Promise(function (resolve) {
+    getFileContents(file_path, function (contents) {
+      let widgets = initializeWidgets(JSON.parse(contents));
+      log("Initialized widgets from disk");
+      resolve(widgets);
+    });
+  });
+}
+
+/**
+ * @param {Object} widgetsJson widget data
+ * @returns {Array} array of SocialWidget objects
+ */
+function initializeWidgets(widgetsJson) {
+  let widgets = [];
+
+  // loop over each widget, making a SocialWidget object
+  for (let widget_name in widgetsJson) {
+    let widgetProperties = widgetsJson[widget_name];
+    let widget = new SocialWidget(widget_name, widgetProperties);
+    widgets.push(widget);
+  }
+
+  return widgets;
+}
+
+/**
+ * Constructs a SocialWidget with the given name and properties.
+ *
+ * @param {String} name the name of the socialwidget
+ * @param {Object} properties the properties of the socialwidget
+ */
+function SocialWidget(name, properties) {
+  let self = this;
+
+  self.name = name;
+
+  for (let property in properties) {
+    self[property] = properties[property];
+  }
+
+  // standardize on "domains"
+  if (self.domain) {
+    self.domains = [self.domain];
+  }
+}
+
+return exports;
+
+}()); //require scopes