nsupdateservice.js

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//@line 42 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"

const PREF_APP_UPDATE_ENABLED             = "app.update.enabled";
const PREF_APP_UPDATE_AUTO                = "app.update.auto";
const PREF_APP_UPDATE_MODE                = "app.update.mode";
const PREF_APP_UPDATE_SILENT              = "app.update.silent";
const PREF_APP_UPDATE_INTERVAL            = "app.update.interval";
const PREF_APP_UPDATE_TIMER               = "app.update.timer";
const PREF_APP_UPDATE_LOG_BRANCH          = "app.update.log.";
const PREF_APP_UPDATE_URL                 = "app.update.url";
const PREF_APP_UPDATE_URL_OVERRIDE        = "app.update.url.override";
const PREF_APP_UPDATE_URL_DETAILS         = "app.update.url.details";
const PREF_APP_UPDATE_CHANNEL             = "app.update.channel";
const PREF_APP_UPDATE_SHOW_INSTALLED_UI   = "app.update.showInstalledUI";
const PREF_APP_UPDATE_LASTUPDATETIME_FMT  = "app.update.lastUpdateTime.%ID%";
const PREF_APP_EXTENSIONS_VERSION         = "app.extensions.version";
const PREF_GENERAL_USERAGENT_LOCALE       = "general.useragent.locale";
const PREF_APP_UPDATE_INCOMPATIBLE_MODE   = "app.update.incompatible.mode";
const PREF_UPDATE_NEVER_BRANCH            = "app.update.never."
const PREF_PARTNER_BRANCH                 = "app.partner.";

const URI_UPDATE_PROMPT_DIALOG  = "chrome://mozapps/content/update/updates.xul";
const URI_UPDATE_HISTORY_DIALOG = "chrome://mozapps/content/update/history.xul";
const URI_BRAND_PROPERTIES      = "chrome://branding/locale/brand.properties";
const URI_UPDATES_PROPERTIES    = "chrome://mozapps/locale/update/updates.properties";
const URI_UPDATE_NS             = "http://www.mozilla.org/2005/app-update";

const KEY_APPDIR          = "XCurProcD";
//@line 70 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"
const KEY_LOCALDATA       = "DefProfLRt";
const KEY_PROGRAMFILES    = "ProgF";
const KEY_UAPPDATA        = "UAppData";
//@line 74 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"

const DIR_UPDATES         = "updates";
const FILE_UPDATE_STATUS  = "update.status";
const FILE_UPDATE_ARCHIVE = "update.mar";
const FILE_UPDATE_LOG     = "update.log"
const FILE_UPDATES_DB     = "updates.xml";
const FILE_UPDATE_ACTIVE  = "active-update.xml";
const FILE_PERMS_TEST     = "update.test";
const FILE_LAST_LOG       = "last-update.log";

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;

const STATE_NONE            = "null";
const STATE_DOWNLOADING     = "downloading";
const STATE_PENDING         = "pending";
const STATE_APPLYING        = "applying";
const STATE_SUCCEEDED       = "succeeded";
const STATE_DOWNLOAD_FAILED = "download-failed";
const STATE_FAILED          = "failed";

// From updater/errors.h:
const WRITE_ERROR = 7;

const DOWNLOAD_CHUNK_SIZE           = 300000; // bytes
const DOWNLOAD_BACKGROUND_INTERVAL  = 600;    // seconds
const DOWNLOAD_FOREGROUND_INTERVAL  = 0;

// Values for the PREF_APP_UPDATE_INCOMPATIBLE_MODE pref. See documentation in
// code below. 
const INCOMPATIBLE_MODE_NEWVERSIONS   = 0;
const INCOMPATIBLE_MODE_NONEWVERSIONS = 1;

const POST_UPDATE_CONTRACTID = "@mozilla.org/updates/post-update;1";

const nsILocalFile            = Components.interfaces.nsILocalFile;
const nsIUpdateService        = Components.interfaces.nsIUpdateService;
const nsIUpdateItem           = Components.interfaces.nsIUpdateItem;
const nsIPrefLocalizedString  = Components.interfaces.nsIPrefLocalizedString;
const nsIIncrementalDownload  = Components.interfaces.nsIIncrementalDownload;
const nsIFileInputStream      = Components.interfaces.nsIFileInputStream;
const nsIFileOutputStream     = Components.interfaces.nsIFileOutputStream;
const nsICryptoHash           = Components.interfaces.nsICryptoHash;

const Node = Components.interfaces.nsIDOMNode;

var gApp        = null;
var gPref       = null;
var gABI        = null;
var gOSVersion  = null;
var gConsole    = null;
var gLogEnabled = { };

// shared code for suppressing bad cert dialogs
//@line 40 "/c/builds/1813/mozilla/toolkit/mozapps/update/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 135 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"

/**
 * Logs a string to the error console. 
 * @param   string
 *          The string to write to the error console..
 */  
function LOG(module, string) {
  if (module in gLogEnabled) {
    dump("*** " + module + ": " + string + "\n");
    gConsole.logStringMessage(string);
  }
}

/**
 * Convert a string containing binary values to hex.
 */
function binaryToHex(input) {
  var result = "";
  for (var i = 0; i < input.length; ++i) {
    var hex = input.charCodeAt(i).toString(16);
    if (hex.length == 1)
      hex = "0" + hex;
    result += hex;
  }
  return result;
}

/**
 * Gets a File URL spec for a nsIFile
 * @param   file
 *          The file to get a file URL spec to
 * @returns The file URL spec to the file
 */
function getURLSpecFromFile(file) {
  var ioServ = Components.classes["@mozilla.org/network/io-service;1"]
                         .getService(Components.interfaces.nsIIOService);
  var fph = ioServ.getProtocolHandler("file")
                  .QueryInterface(Components.interfaces.nsIFileProtocolHandler);
  return fph.getURLSpecFromFile(file);
}

/**
 * Gets the specified directory at the specified hierarchy under a 
 * Directory Service key. 
 * @param   key
 *          The Directory Service Key to start from
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|
 * @return  nsIFile object for the location specified. If the directory
 *          requested does not exist, it is created, along with any
 *          parent directories that need to be created.
 */
function getDir(key, pathArray) {
  return getDirInternal(key, pathArray, true, false);
}

/**
 * Gets the specified directory at the speciifed hierarchy under a 
 * Directory Service key. 
 * @param   key
 *          The Directory Service Key to start from
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|
 * @return  nsIFile object for the location specified. If the directory
 *          requested does not exist, it is NOT created.
 */
function getDirNoCreate(key, pathArray) {
  return getDirInternal(key, pathArray, false, false);
}

/**
 * Gets the specified directory at the specified hierarchy under the 
 * update root directory.
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|
 * @return  nsIFile object for the location specified. If the directory
 *          requested does not exist, it is created, along with any
 *          parent directories that need to be created.
 */
function getUpdateDir(pathArray) {
  return getDirInternal(KEY_APPDIR, pathArray, true, true);
}

/**
 * Gets the specified directory at the speciifed hierarchy under a 
 * Directory Service key. 
 * @param   key
 *          The Directory Service Key to start from
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|
 * @param   shouldCreate
 *          true if the directory hierarchy specified in |pathArray|
 *          should be created if it does not exist,
 *          false otherwise.
 * @param   update
 *          true if finding the update directory,
 *          false otherwise.
 * @return  nsIFile object for the location specified. 
 */
function getDirInternal(key, pathArray, shouldCreate, update) {
  var fileLocator = Components.classes["@mozilla.org/file/directory_service;1"]
                              .getService(Components.interfaces.nsIProperties);
  var dir = fileLocator.get(key, Components.interfaces.nsILocalFile);
//@line 243 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"
  if (update) {
    // Fallback to previous behavior since getting ProgF
    // (e.g. KEY_PROGRAMFILES) may fail on Win9x.
    try {
      var programFilesDir = fileLocator.get(KEY_PROGRAMFILES,
          Components.interfaces.nsILocalFile);
      if (programFilesDir.contains(dir, true)) {
        var relativePath = dir.getRelativeDescriptor(programFilesDir);
        var userLocalDir = fileLocator.get(KEY_LOCALDATA,
            Components.interfaces.nsILocalFile).parent;
        dir.setRelativeDescriptor(userLocalDir, relativePath);
      }
    }
    catch (e) {}
  }
//@line 259 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"
  for (var i = 0; i < pathArray.length; ++i) {
    dir.append(pathArray[i]);
    if (shouldCreate && !dir.exists())
      dir.create(nsILocalFile.DIRECTORY_TYPE, PERMS_DIRECTORY);
  }
  return dir;
}

/**
 * Gets the file at the speciifed hierarchy under a Directory Service key.
 * @param   key
 *          The Directory Service Key to start from
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|. The last item in this array must be the
 *          leaf name of a file.
 * @return  nsIFile object for the file specified. The file is NOT created
 *          if it does not exist, however all required directories along 
 *          the way are.
 */
function getFile(key, pathArray) {
  var file = getDir(key, pathArray.slice(0, -1));
  file.append(pathArray[pathArray.length - 1]);
  return file;
}

/**
 * Gets the file at the speciifed hierarchy under the update root directory.
 * @param   pathArray
 *          An array of path components to locate beneath the directory 
 *          specified by |key|. The last item in this array must be the
 *          leaf name of a file.
 * @return  nsIFile object for the file specified. The file is NOT created
 *          if it does not exist, however all required directories along 
 *          the way are.
 */
function getUpdateFile(pathArray) {
  var file = getUpdateDir(pathArray.slice(0, -1));
  file.append(pathArray[pathArray.length - 1]);
  return file;
}

/**
 * Closes a Safe Output Stream
 * @param   fos
 *          The Safe Output Stream to close
 */
function closeSafeOutputStream(fos) {
  if (fos instanceof Components.interfaces.nsISafeOutputStream) {
    try {
      fos.finish();
    }
    catch (e) {
      fos.close();
    }
  }
  else
    fos.close();
}

/**
 * Returns human readable status text from the updates.properties bundle
 * based on an error code
 * @param   code
 *          The error code to look up human readable status text for
 * @param   defaultCode
 *          The default code to look up should human readable status text
 *          not exist for |code|
 * @returns A human readable status text string
 */
function getStatusTextFromCode(code, defaultCode) {
  var sbs = 
      Components.classes["@mozilla.org/intl/stringbundle;1"].
      getService(Components.interfaces.nsIStringBundleService);
  var updateBundle = sbs.createBundle(URI_UPDATES_PROPERTIES);
  var reason = updateBundle.GetStringFromName("checker_error-" + defaultCode);
  try {
    reason = updateBundle.GetStringFromName("checker_error-" + code);
    LOG("General", "Transfer Error: " + reason + ", code: " + code);
  }
  catch (e) {
    // Use the default reason
    LOG("General", "Transfer Error: " + reason + ", code: " + defaultCode);
  }
  return reason;
}

/**
 * Get the Active Updates directory
 * @param   key
 *          The Directory Service Key (optional).
 *          If used, don't search local appdata on Win32 and don't create dir.
 * @returns The active updates directory, as a nsIFile object
 */
function getUpdatesDir(key) {
  // Right now, we only support downloading one patch at a time, so we always
  // use the same target directory.
  var fileLocator =
      Components.classes["@mozilla.org/file/directory_service;1"].
      getService(Components.interfaces.nsIProperties);
  var appDir;
  if (key)
    appDir = fileLocator.get(key, Components.interfaces.nsILocalFile);
  else {
    appDir = fileLocator.get(KEY_APPDIR, Components.interfaces.nsILocalFile);
//@line 365 "/c/builds/1813/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in"
    // Fallback to previous behavior since getting ProgF
    // (e.g. KEY_PROGRAMFILES) may fail on Win9x.
    try {
      var programFilesDir = fileLocator.get(KEY_PROGRAMFILES,
          Components.interfaces.nsILocalFile);