ONC import option to chromeos tab in chrome://net-internals

chrome/browser/resources/net_internals/chromeos_view.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * This view displays information on ChromeOS specific features.
+ */
+var CrosView = (function() {
+  'use strict';
+
+  var fileContent;
+  var passcode = '';
+
+  /**
+   *  Send file contents and passcode to C++ cros network library.
+   *
+   *  @private
+   */
+  function importONCFile_() {
+    if (fileContent)
+      g_browser.importONCFile(fileContent, passcode);
+    else
+      setParseStatus_(false);
+  }
+
+  /**
+   *  Set the passcode var, and trigger onc import.
+   *
+   *  @private
+   *  @param {string} passcode
+   */
+  function setPasscode_(value) {
+    passcode = value;
+    if (passcode)
+      importONCFile_();
+  }
+
+  /**
+   *  Unhide the passcode prompt input field and give it focus.
+   *
+   *  @private
+   */
+  function promptForPasscode_() {
+    $(CrosView.PASSCODE_ID).hidden = false;
+    $(CrosView.PASSCODE_INPUT_ID).focus();
+    $(CrosView.PASSCODE_INPUT_ID).select();
+  }
+
+  /**
+   *  Set the fileContent var, and trigger onc import if the file appears to
+   *  not be encrypted, or prompt for passcode if the file is encrypted.
+   *
+   *  @private
+   *  @param {string} text contents of selected file.
+   */
+  function setFileContent_(result) {
+    fileContent = result;
+    // Check if file is encrypted.
+    if (fileContent.search(/begin pgp message/i) == -1) {
+      // Not encrypted, don't need passcode.
+      importONCFile_();
+    } else {
+      promptForPasscode_();
+    }
+  }
+
+  /**
+   *  Set ONC file parse status.
+   *
+   *  @private
+   */
+  function setParseStatus_(success) {
+    var parseStatus = $(CrosView.PARSE_STATUS_ID);
+    parseStatus.hidden = false;
+    parseStatus.textContent = status ?
+        "ONC file successfully parsed" : "ONC file parse failed";
+    reset_();
+  }
+
+  /**
+   *  Add event listeners for the file selection and passcode input fields.
+   *
+   *  @private
+   */
+  function addEventListeners_() {
+    $(CrosView.IMPORT_ONC_ID).addEventListener('change', function(event) {
+      $(CrosView.PARSE_STATUS_ID).hidden = true;
+      var file = event.target.files[0];
+      var reader = new FileReader();
+      reader.onloadend = function(e) {
+        setFileContent_(this.result);
+      };
+      reader.readAsText(file);
+    }, false);
+
+    $(CrosView.PASSCODE_INPUT_ID).addEventListener('change', function(event) {
+      setPasscode_(this.value);
+    }, false);
+  }
+
+  /**
+   *  Reset fileContent and passcode vars.
+   *
+   *  @private
+   */
+  function reset_() {
+    fileContent = undefined;
+    passcode = '';
+    $(CrosView.PASSCODE_ID).hidden = true;
+  }
+
+  /**
+   *  @constructor
+   *  @extends {DivView}
+   */
+  function CrosView() {
+    assertFirstConstructorCall(CrosView);
+
+    // Call superclass's constructor.
+    DivView.call(this, CrosView.MAIN_BOX_ID);
+
+    g_browser.addCrosONCFileParseObserver(this);
+    addEventListeners_();
+  }
+
+  // ID for special HTML element in category_tabs.html
+  CrosView.TAB_HANDLE_ID = 'tab-handle-chromeos';
+
+  CrosView.MAIN_BOX_ID = 'chromeos-view-tab-content';
+  CrosView.IMPORT_ONC_ID = 'chromeos-view-import-onc';
+  CrosView.PASSCODE_ID = 'chromeos-view-password-div';
+  CrosView.PASSCODE_INPUT_ID = 'chromeos-view-onc-password';
+  CrosView.PARSE_STATUS_ID = 'chromeos-view-parse-status';
+
+  cr.addSingletonGetter(CrosView);
+
+  CrosView.prototype = {
+    // Inherit from DivView.
+    __proto__: DivView.prototype,
+
+    onONCFileParse: setParseStatus_,
+  };
+
+  return CrosView;
+})();