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path: root/application/palemoon/components/preferences/security.js
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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */

Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");

var gSecurityPane = {
  _pane: null,

  /**
   * Initializes UI.
   */
  init: function ()
  {
    this._pane = document.getElementById("paneSecurity");
    this._initMasterPasswordUI();
    this._initHPKPUI();
  },

  // ADD-ONS

  /*
   * Preferences:
   *
   * xpinstall.whitelist.required
   * - true if a site must be added to a site whitelist before extensions
   *   provided by the site may be installed from it, false if the extension
   *   may be directly installed after a confirmation dialog
   */

  /**
   * Enables/disables the add-ons Exceptions button depending on whether
   * or not add-on installation warnings are displayed.
   */
  readWarnAddonInstall: function ()
  {
    var warn = document.getElementById("xpinstall.whitelist.required");
    var exceptions = document.getElementById("addonExceptions");

    exceptions.disabled = !warn.value;

    // don't override the preference value
    return undefined;
  },

  /**
   * Displays the exceptions lists for add-on installation warnings.
   */
  showAddonExceptions: function ()
  {
    var bundlePrefs = document.getElementById("bundlePreferences");

    var params = this._addonParams;
    if (!params.windowTitle || !params.introText) {
      params.windowTitle = bundlePrefs.getString("addons_permissions_title");
      params.introText = bundlePrefs.getString("addonspermissionstext");
    }

    document.documentElement.openWindow("Browser:Permissions",
                                        "chrome://browser/content/preferences/permissions.xul",
                                        "", params);
  },

  /**
   * Parameters for the add-on install permissions dialog.
   */
  _addonParams:
    {
      blockVisible: false,
      sessionVisible: false,
      allowVisible: true,
      prefilledHost: "",
      permissionType: "install"
    },

  /**
   * Ensures that the blocklist is enabled/disabled appropriately based on level
   */
  addonLevelNeedsSync: function()
  {
    Services.prefs.setBoolPref("extensions.blocklist.level.updated", true);
  },
  // called from preferences window onunload.
  syncAddonSecurityLevel: function()
  {
    if (Services.prefs.getBoolPref("extensions.blocklist.level.updated") == true) {
      Services.prefs.setBoolPref("extensions.blocklist.level.updated", false);
      var secLevel = Services.prefs.getIntPref("extensions.blocklist.level");
      Services.prefs.setBoolPref("extensions.blocklist.enabled",
                                 !(secLevel == 99));
    }
  },
    
  // PASSWORDS

  /*
   * Preferences:
   *
   * signon.rememberSignons
   * - true if passwords are remembered, false otherwise
   */

  /**
   * Enables/disables the Exceptions button used to configure sites where
   * passwords are never saved. When browser is set to start in Private
   * Browsing mode, the "Remember passwords" UI is useless, so we disable it.
   */
  readSavePasswords: function ()
  {
    var pref = document.getElementById("signon.rememberSignons");
    var excepts = document.getElementById("passwordExceptions");

    if (PrivateBrowsingUtils.permanentPrivateBrowsing) {
      document.getElementById("savePasswords").disabled = true;
      excepts.disabled = true;
      return false;
    } else {
      excepts.disabled = !pref.value;
      // don't override pref value in UI
      return undefined;
    }
  },

  /**
   * Displays a dialog in which the user can view and modify the list of sites
   * where passwords are never saved.
   */
  showPasswordExceptions: function ()
  {
    document.documentElement.openWindow("Toolkit:PasswordManagerExceptions",
                                        "chrome://passwordmgr/content/passwordManagerExceptions.xul",
                                        "", null);
  },

  /**
   * Initializes master password UI: the "use master password" checkbox, selects
   * the master password button to show, and enables/disables it as necessary.
   * The master password is controlled by various bits of NSS functionality, so
   * the UI for it can't be controlled by the normal preference bindings.
   */
  _initMasterPasswordUI: function ()
  {
    var noMP = !this._masterPasswordSet();

    var button = document.getElementById("changeMasterPassword");
    button.disabled = noMP;

    var checkbox = document.getElementById("useMasterPassword");
    checkbox.checked = !noMP;
  },

  /**
   * Returns true if the user has a master password set and false otherwise.
   */
  _masterPasswordSet: function ()
  {
    const Cc = Components.classes, Ci = Components.interfaces;
    var secmodDB = Cc["@mozilla.org/security/pkcs11moduledb;1"].
                   getService(Ci.nsIPKCS11ModuleDB);
    var slot = secmodDB.findSlotByName("");
    if (slot) {
      var status = slot.status;
      var hasMP = status != Ci.nsIPKCS11Slot.SLOT_UNINITIALIZED &&
                  status != Ci.nsIPKCS11Slot.SLOT_READY;
      return hasMP;
    } else {
      // XXX I have no bloody idea what this means
      return false;
    }
  },

  /**
   * Enables/disables the master password button depending on the state of the
   * "use master password" checkbox, and prompts for master password removal if
   * one is set.
   */
  updateMasterPasswordButton: function ()
  {
    var checkbox = document.getElementById("useMasterPassword");
    var button = document.getElementById("changeMasterPassword");
    button.disabled = !checkbox.checked;

    // unchecking the checkbox should try to immediately remove the master
    // password, because it's impossible to non-destructively remove the master
    // password used to encrypt all the passwords without providing it (by
    // design), and it would be extremely odd to pop up that dialog when the
    // user closes the prefwindow and saves his settings
    if (!checkbox.checked)
      this._removeMasterPassword();
    else
      this.changeMasterPassword();

    this._initMasterPasswordUI();
  },

  /**
   * Displays the "remove master password" dialog to allow the user to remove
   * the current master password.  When the dialog is dismissed, master password
   * UI is automatically updated.
   */
  _removeMasterPassword: function ()
  {
    const Cc = Components.classes, Ci = Components.interfaces;
    var secmodDB = Cc["@mozilla.org/security/pkcs11moduledb;1"].
                   getService(Ci.nsIPKCS11ModuleDB);
    if (secmodDB.isFIPSEnabled) {
      var promptService = Cc["@mozilla.org/embedcomp/prompt-service;1"].
                          getService(Ci.nsIPromptService);
      var bundle = document.getElementById("bundlePreferences");
      promptService.alert(window,
                          bundle.getString("pw_change_failed_title"),
                          bundle.getString("pw_change2empty_in_fips_mode"));
    }
    else {
      document.documentElement.openSubDialog("chrome://mozapps/content/preferences/removemp.xul",
                                             "", null);
    }
    this._initMasterPasswordUI();
  },

  /**
   * Displays a dialog in which the master password may be changed.
   */
  changeMasterPassword: function ()
  {
    document.documentElement.openSubDialog("chrome://mozapps/content/preferences/changemp.xul",
                                           "", null);
    this._initMasterPasswordUI();
  },

  /**
   * Shows the sites where the user has saved passwords and the associated login
   * information.
   */
  showPasswords: function ()
  {
    document.documentElement.openWindow("Toolkit:PasswordManager",
                                        "chrome://passwordmgr/content/passwordManager.xul",
                                        "", null);
  },
  
  _initHPKPUI: function() {
    let checkbox = document.getElementById("enableHPKP");
    let HPKPpref = document.getElementById("security.cert_pinning.enforcement_level");

    if (HPKPpref.value == 0) {
      checkbox.checked = false;
    } else {
      checkbox.checked = true;
    }
  },
      
  /**
   * Updates the HPKP enforcement level to the proper value depending on checkbox
   * state.
   */
  updateHPKPPref: function() {
    let checkbox = document.getElementById("enableHPKP");
    let HPKPpref = document.getElementById("security.cert_pinning.enforcement_level");
    
    if (checkbox.checked) {
      HPKPpref.value = 2;
    } else {
      HPKPpref.value = 0;
    }
  }
};