nsextensionmanager.js

从国外的站点上淘的个人财务管理系统．开源．

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Extension Manager.
 *
 * The Initial Developer of the Original Code is Ben Goodger.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Ben Goodger <[e-mail]> (Google Inc.)
 *  Benjamin Smedberg <[e-mail]>
 *  Jens Bannmann <[e-mail]>
 *  Robert Strong <[e-mail]>
 *  Dave Townsend <[e-mail]>
 *  Daniel Veditz <[e-mail]>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

//
// TODO:
// - better logging
//

const nsIExtensionManager             = Components.interfaces.nsIExtensionManager;
const nsIAddonUpdateCheckListener     = Components.interfaces.nsIAddonUpdateCheckListener;
const nsIUpdateItem                   = Components.interfaces.nsIUpdateItem;
const nsILocalFile                    = Components.interfaces.nsILocalFile;
const nsILineInputStream              = Components.interfaces.nsILineInputStream;
const nsIInstallLocation              = Components.interfaces.nsIInstallLocation;
const nsIURL                          = Components.interfaces.nsIURL
// XXXrstrong calling hasMoreElements on a nsIDirectoryEnumerator after
// it has been removed will cause a crash on Mac OS X - bug 292823
const nsIDirectoryEnumerator          = Components.interfaces.nsIDirectoryEnumerator;

const PREF_EM_CHECK_COMPATIBILITY     = "extensions.checkCompatibility";
const PREF_EM_LAST_APP_VERSION        = "extensions.lastAppVersion";
const PREF_UPDATE_COUNT               = "extensions.update.count";
const PREF_UPDATE_DEFAULT_URL         = "extensions.update.url";
const PREF_EM_IGNOREMTIMECHANGES      = "extensions.ignoreMTimeChanges";
const PREF_EM_DISABLEDOBSOLETE        = "extensions.disabledObsolete";
const PREF_EM_LAST_SELECTED_SKIN      = "extensions.lastSelectedSkin";
const PREF_EM_EXTENSION_FORMAT        = "extensions.%UUID%.";
const PREF_EM_ITEM_UPDATE_ENABLED     = "extensions.%UUID%.update.enabled";
const PREF_EM_UPDATE_ENABLED          = "extensions.update.enabled";
const PREF_EM_ITEM_UPDATE_URL         = "extensions.%UUID%.update.url";
const PREF_EM_DSS_ENABLED             = "extensions.dss.enabled";
const PREF_DSS_SWITCHPENDING          = "extensions.dss.switchPending";
const PREF_DSS_SKIN_TO_SELECT         = "extensions.lastSelectedSkin";
const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
const PREF_EM_LOGGING_ENABLED         = "extensions.logging.enabled";
const PREF_EM_UPDATE_INTERVAL         = "extensions.update.interval";
const PREF_BLOCKLIST_URL              = "extensions.blocklist.url";
const PREF_BLOCKLIST_DETAILS_URL      = "extensions.blocklist.detailsURL";
const PREF_BLOCKLIST_ENABLED          = "extensions.blocklist.enabled";
const PREF_BLOCKLIST_INTERVAL         = "extensions.blocklist.interval";
const PREF_UPDATE_NOTIFYUSER          = "extensions.update.notifyUser";

const DIR_EXTENSIONS                  = "extensions";
const DIR_CHROME                      = "chrome";
const DIR_STAGE                       = "staged-xpis";
const FILE_EXTENSIONS                 = "extensions.rdf";
const FILE_EXTENSION_MANIFEST         = "extensions.ini";
const FILE_EXTENSIONS_STARTUP_CACHE   = "extensions.cache";
const FILE_AUTOREG                    = ".autoreg";
const FILE_INSTALL_MANIFEST           = "install.rdf";
const FILE_CONTENTS_MANIFEST          = "contents.rdf";
const FILE_CHROME_MANIFEST            = "chrome.manifest";
const FILE_BLOCKLIST                  = "blocklist.xml";

const UNKNOWN_XPCOM_ABI               = "unknownABI";

const FILE_LOGFILE                    = "extensionmanager.log";

const FILE_DEFAULT_THEME_JAR          = "classic.jar";
const TOOLKIT_ID                      = "[e-mail]"

const KEY_PROFILEDIR                  = "ProfD";
const KEY_PROFILEDS                   = "ProfDS";
const KEY_APPDIR                      = "XCurProcD";
const KEY_TEMPDIR                     = "TmpD";

const EM_ACTION_REQUESTED_TOPIC       = "em-action-requested";
const EM_ITEM_INSTALLED               = "item-installed";
const EM_ITEM_UPGRADED                = "item-upgraded";
const EM_ITEM_UNINSTALLED             = "item-uninstalled";
const EM_ITEM_ENABLED                 = "item-enabled";
const EM_ITEM_DISABLED                = "item-disabled";
const EM_ITEM_CANCEL                  = "item-cancel-action";

const OP_NONE                         = "";
const OP_NEEDS_INSTALL                = "needs-install";
const OP_NEEDS_UPGRADE                = "needs-upgrade";
const OP_NEEDS_UNINSTALL              = "needs-uninstall";
const OP_NEEDS_ENABLE                 = "needs-enable";
const OP_NEEDS_DISABLE                = "needs-disable";

const KEY_APP_PROFILE                 = "app-profile";
const KEY_APP_GLOBAL                  = "app-global";

const CATEGORY_INSTALL_LOCATIONS      = "extension-install-locations";

const PREFIX_NS_EM                    = "http://www.mozilla.org/2004/em-rdf#";
const PREFIX_NS_CHROME                = "http://www.mozilla.org/rdf/chrome#";
const PREFIX_ITEM_URI                 = "urn:mozilla:item:";
const PREFIX_EXTENSION                = "urn:mozilla:extension:";
const PREFIX_THEME                    = "urn:mozilla:theme:";
const RDFURI_INSTALL_MANIFEST_ROOT    = "urn:mozilla:install-manifest";
const RDFURI_ITEM_ROOT                = "urn:mozilla:item:root"
const RDFURI_DEFAULT_THEME            = "urn:mozilla:item:{972ce4c6-7e08-4474-a285-3208198ce6fd}";
const XMLURI_PARSE_ERROR              = "http://www.mozilla.org/newlayout/xml/parsererror.xml"
const XMLURI_BLOCKLIST                = "http://www.mozilla.org/2006/addons-blocklist";

const URI_GENERIC_ICON_XPINSTALL      = "chrome://mozapps/skin/xpinstall/xpinstallItemGeneric.png";
const URI_GENERIC_ICON_THEME          = "chrome://mozapps/skin/extensions/themeGeneric.png";
const URI_XPINSTALL_CONFIRM_DIALOG    = "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul";
const URI_FINALIZE_DIALOG             = "chrome://mozapps/content/extensions/finalize.xul";
const URI_EXTENSIONS_PROPERTIES       = "chrome://mozapps/locale/extensions/extensions.properties";
const URI_BRAND_PROPERTIES            = "chrome://branding/locale/brand.properties";
const URI_DOWNLOADS_PROPERTIES        = "chrome://mozapps/locale/downloads/downloads.properties";
const URI_EXTENSION_UPDATE_DIALOG     = "chrome://mozapps/content/extensions/update.xul";
const URI_EXTENSION_LIST_DIALOG       = "chrome://mozapps/content/extensions/list.xul";

const INSTALLERROR_SUCCESS               = 0;
const INSTALLERROR_INVALID_VERSION       = -1;
const INSTALLERROR_INVALID_GUID          = -2;
const INSTALLERROR_INCOMPATIBLE_VERSION  = -3;
const INSTALLERROR_PHONED_HOME           = -4;
const INSTALLERROR_INCOMPATIBLE_PLATFORM = -5;
const INSTALLERROR_BLOCKLISTED           = -6;

const MODE_RDONLY   = 0x01;
const MODE_WRONLY   = 0x02;
const MODE_CREATE   = 0x08;
const MODE_APPEND   = 0x10;
const MODE_TRUNCATE = 0x20;

const PERMS_FILE      = 0644;
const PERMS_DIRECTORY = 0755;

var gApp  = null;
var gPref = null;
var gRDF  = null;
var gOS   = null;
var gXPCOMABI             = null;
var gOSTarget             = null;
var gConsole              = null;
var gInstallManifestRoot  = null;
var gVersionChecker       = null;
var gLoggingEnabled       = null;
var gCheckCompatibility   = true;

/** 
 * Valid GUIDs fit this pattern.
 */
var gIDTest = /^(\{[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\}|[a-z0-9-\._]*\@[a-z0-9-\._]+)$/i;

// shared code for suppressing bad cert dialogs
//@line 40 "/c/builds/1813/mozilla/toolkit/mozapps/extensions/src/../../shared/src/badCertHandler.js"

/**
 * Only allow built-in certs for HTTPS connections.  See bug 340198.
 */
function checkCert(channel) {
  if (!channel.originalURI.schemeIs("https"))  // bypass
    return;

  const Ci = Components.interfaces;  
  var cert =
      channel.securityInfo.QueryInterface(Ci.nsISSLStatusProvider).
      SSLStatus.QueryInterface(Ci.nsISSLStatus).serverCert;

  var issuer = cert.issuer;
  while (issuer && !cert.equals(issuer)) {
    cert = issuer;
    issuer = cert.issuer;
  }

  if (!issuer || issuer.tokenName != "Builtin Object Token")
    throw "cert issuer is not built-in";
}

/**
 * This class implements nsIBadCertListener.  It's job is to prevent "bad cert"
 * security dialogs from being shown to the user.  It is better to simply fail
 * if the certificate is bad. See bug 304286.
 */
function BadCertHandler() {
}
BadCertHandler.prototype = {

  // nsIBadCertListener
  confirmUnknownIssuer: function(socketInfo, cert, certAddType) {
    LOG("EM BadCertHandler: Unknown issuer");
    return false;
  },

  confirmMismatchDomain: function(socketInfo, targetURL, cert) {
    LOG("EM BadCertHandler: Mismatched domain");
    return false;
  },

  confirmCertExpired: function(socketInfo, cert) {
    LOG("EM BadCertHandler: Expired certificate");
    return false;
  },

  notifyCrlNextupdate: function(socketInfo, targetURL, cert) {
  },

  // nsIChannelEventSink
  onChannelRedirect: function(oldChannel, newChannel, flags) {
    // make sure the certificate of the old channel checks out before we follow
    // a redirect from it.  See bug 340198.
    checkCert(oldChannel);
  },

  // nsIInterfaceRequestor
  getInterface: function(iid) {
    if (iid.equals(Components.interfaces.nsIBadCertListener) ||
        iid.equals(Components.interfaces.nsIChannelEventSink))
      return this;

    Components.returnCode = Components.results.NS_ERROR_NO_INTERFACE;
    return null;
  },

  // nsISupports
  QueryInterface: function(iid) {
    if (!iid.equals(Components.interfaces.nsIBadCertListener) &&
        !iid.equals(Components.interfaces.nsIChannelEventSink) &&
        !iid.equals(Components.interfaces.nsIInterfaceRequestor) &&
        !iid.equals(Components.interfaces.nsISupports))
      throw Components.results.NS_ERROR_NO_INTERFACE;
    return this;
  }
};
//@line 183 "/c/builds/1813/mozilla/toolkit/mozapps/extensions/src/nsExtensionManager.js.in"

/**
 * Creates a Version Checker object.
 * @returns A handle to the global Version Checker service.
 */
function getVersionChecker() {
  if (!gVersionChecker) {
    gVersionChecker = Components.classes["@mozilla.org/xpcom/version-comparator;1"]
                                .getService(Components.interfaces.nsIVersionComparator);
  }
  return gVersionChecker;
}

var BundleManager = { 
  /**
  * Creates and returns a String Bundle at the specified URI
  * @param   bundleURI
  *          The URI of the bundle to load
  * @returns A nsIStringBundle which was retrieved.
  */
  getBundle: function(bundleURI) {
    var sbs = Components.classes["@mozilla.org/intl/stringbundle;1"]
                        .getService(Components.interfaces.nsIStringBundleService);
    return sbs.createBundle(bundleURI);
  },
  
  _appName: "",
  
  /**
   * The Application's display name.
   */
  get appName() {
    if (!this._appName) {
      var brandBundle = this.getBundle(URI_BRAND_PROPERTIES)
      this._appName = brandBundle.GetStringFromName("brandShortName");
    }
    return this._appName;
  }
};

///////////////////////////////////////////////////////////////////////////////
//
// Utility Functions
//
function EM_NS(property) {
  return PREFIX_NS_EM + property;
}

function CHROME_NS(property) {
  return PREFIX_NS_CHROME + property;
}

function EM_R(property) {
  return gRDF.GetResource(EM_NS(property));
}

function EM_L(literal) {
  return gRDF.GetLiteral(literal);
}

function EM_I(integer) {
  return gRDF.GetIntLiteral(integer);
}

function EM_D(integer) {
  return gRDF.GetDateLiteral(integer);
}

/**
 * Gets a preference value, handling the case where there is no default.
 * @param   func
 *          The name of the preference function to call, on nsIPrefBranch
 * @param   preference
 *          The name of the preference
 * @param   defaultValue
 *          The default value to return in the event the preference has 
 *          no setting
 * @returns The value of the preference, or undefined if there was no
 *          user or default value.
 */
function getPref(func, preference, defaultValue) {
  try {
    return gPref[func](preference);
  }
  catch (e) {
  }
  return defaultValue;
}

/**
 * Initializes a RDF Container at a URI in a datasource.
 * @param   datasource
 *          The datasource the container is in
 * @param   root
 *          The RDF Resource which is the root of the container.
 * @returns The nsIRDFContainer, initialized at the root.
 */
function getContainer(datasource, root) {
  var ctr = Components.classes["@mozilla.org/rdf/container;1"]
                      .createInstance(Components.interfaces.nsIRDFContainer);
  ctr.Init(datasource, root);
  return ctr;
}

/**
 * Gets a RDF Resource for item with the given ID
 * @param   id
 *          The GUID of the item to construct a RDF resource to the 
 *          active item for
 * @returns The RDF Resource to the Active item. 
 */
function getResourceForID(id) {
  return gRDF.GetResource(PREFIX_ITEM_URI + id);
}

/**