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enigmail.js
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	/* *** 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 "MPL"); you may not use this file
	* except in compliance with the MPL. You may obtain a copy of
	* the MPL at http://www.mozilla.org/MPL/
	*
	* Software distributed under the MPL is distributed on an "AS
	* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	* implied. See the MPL for the specific language governing
	* rights and limitations under the MPL.
	*
	* The Original Code is Enigmail.
	*
	* The Initial Developer of the Original Code is Ramalingam Saravanan.
	* Portions created by Ramalingam Saravanan <svn@xmlterm.org> are
	* Copyright (C) 2001 Ramalingam Saravanan. All Rights Reserved.
	*
	* Contributor(s):
	* Patrick Brunschwig <patrick@enigmail.net>
	* Janosch Rux <rux@informatik.uni-luebeck.de>
	*
	* 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 *** */

	Components.utils.import("resource:///modules/iteratorUtils.jsm");
	Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
	Components.utils.import("resource://gre/modules/AddonManager.jsm");
	Components.utils.import("resource://enigmail/subprocess.jsm");
	Components.utils.import("resource://enigmail/pipeConsole.jsm");
	Components.utils.import("resource://enigmail/enigmailCore.jsm");
	Components.utils.import("resource://enigmail/gpgAgentHandler.jsm");
	Components.utils.import("resource://gre/modules/ctypes.jsm");
	Components.utils.import("resource://gre/modules/Timer.jsm");
	Components.utils.import("resource://enigmail/enigmailConvert.jsm");

	try {
	// TB with omnijar
	Components.utils.import("resource:///modules/gloda/mimemsg.js");
	}
	catch (ex) {
	// "old style" TB
	Components.utils.import("resource://app/modules/gloda/mimemsg.js");
	}

	Components.utils.import("resource:///modules/MailUtils.js");


	const gDummyPKCS7 = 'Content-Type: multipart/mixed;\r\n boundary="------------060503030402050102040303\r\n\r\nThis is a multi-part message in MIME format.\r\n--------------060503030402050102040303\r\nContent-Type: application/x-pkcs7-mime\r\nContent-Transfer-Encoding: 8bit\r\n\r\n\r\n--------------060503030402050102040303\r\nContent-Type: application/x-enigmail-dummy\r\nContent-Transfer-Encoding: 8bit\r\n\r\n\r\n--------------060503030402050102040303--\r\n';

	/* Implementations supplied by this module */
	const NS_ENIGMAIL_CONTRACTID = "@mozdev.org/enigmail/enigmail;1";

	const NS_ENIGMAILPROTOCOLHANDLER_CONTRACTID =
	"@mozilla.org/network/protocol;1?name=enigmail";

	const NS_ENIGMAIL_CID =
	Components.ID("{847b3a01-7ab1-11d4-8f02-006008948af5}");

	const NS_ENIGMAILPROTOCOLHANDLER_CID =
	Components.ID("{847b3a11-7ab1-11d4-8f02-006008948af5}");

	const NS_ENIGCLINE_SERVICE_CID =
	Components.ID("{847b3ab1-7ab1-11d4-8f02-006008948af5}");

	const ENIGMAIL_EXTENSION_ID = "{847b3a00-7ab1-11d4-8f02-006008948af5}";

	// Contract IDs and CIDs used by this module
	const NS_SIMPLEURI_CONTRACTID = "@mozilla.org/network/simple-uri;1";
	const NS_OBSERVERSERVICE_CONTRACTID = "@mozilla.org/observer-service;1";
	const ASS_CONTRACTID = "@mozilla.org/appshell/appShellService;1";
	const WMEDIATOR_CONTRACTID = "@mozilla.org/appshell/window-mediator;1";
	const NS_IOSERVICE_CONTRACTID = "@mozilla.org/network/io-service;1";
	const NS_SCRIPTABLEINPUTSTREAM_CONTRACTID = "@mozilla.org/scriptableinputstream;1";
	const NS_DOMPARSER_CONTRACTID = "@mozilla.org/xmlextras/domparser;1";
	const NS_DOMSERIALIZER_CONTRACTID = "@mozilla.org/xmlextras/xmlserializer;1";
	const NS_CLINE_SERVICE_CONTRACTID = "@mozilla.org/enigmail/cline-handler;1";
	const NS_XPCOM_APPINFO = "@mozilla.org/xre/app-info;1";
	const DIR_SERV_CONTRACTID = "@mozilla.org/file/directory_service;1";

	const Cc = Components.classes;
	const Ci = Components.interfaces;

	// Interfaces
	const nsISupports = Ci.nsISupports;
	const nsIObserver = Ci.nsIObserver;
	const nsIProtocolHandler = Ci.nsIProtocolHandler;
	const nsIEnvironment = Ci.nsIEnvironment;
	const nsIEnigmail = Ci.nsIEnigmail;
	const nsICmdLineHandler = Ci.nsICmdLineHandler;
	const nsIWindowWatcher = Ci.nsIWindowWatcher;
	const nsICommandLineHandler = Ci.nsICommandLineHandler;
	const nsIWindowsRegKey = Ci.nsIWindowsRegKey;
	const nsIFactory = Ci.nsIFactory;

	const NS_XPCOM_SHUTDOWN_OBSERVER_ID = "xpcom-shutdown";

	var Ec = null;
	var EC = EnigmailCore;

	///////////////////////////////////////////////////////////////////////////////
	// Global variables


	var gEnigmailSvc = null; // Global Enigmail Service

	// GPG status flags mapping (see doc/DETAILS file in the GnuPG distribution)
	var gStatusFlags = {GOODSIG: nsIEnigmail.GOOD_SIGNATURE,
	BADSIG: nsIEnigmail.BAD_SIGNATURE,
	ERRSIG: nsIEnigmail.UNVERIFIED_SIGNATURE,
	EXPSIG: nsIEnigmail.EXPIRED_SIGNATURE,
	REVKEYSIG: nsIEnigmail.GOOD_SIGNATURE,
	EXPKEYSIG: nsIEnigmail.EXPIRED_KEY_SIGNATURE,
	KEYEXPIRED: nsIEnigmail.EXPIRED_KEY,
	KEYREVOKED: nsIEnigmail.REVOKED_KEY,
	NO_PUBKEY: nsIEnigmail.NO_PUBKEY,
	NO_SECKEY: nsIEnigmail.NO_SECKEY,
	IMPORTED: nsIEnigmail.IMPORTED_KEY,
	INV_RECP: nsIEnigmail.INVALID_RECIPIENT,
	MISSING_PASSPHRASE: nsIEnigmail.MISSING_PASSPHRASE,
	BAD_PASSPHRASE: nsIEnigmail.BAD_PASSPHRASE,
	BADARMOR: nsIEnigmail.BAD_ARMOR,
	NODATA: nsIEnigmail.NODATA,
	ERROR: nsIEnigmail.BAD_SIGNATURE \| nsIEnigmail.DECRYPTION_FAILED,
	DECRYPTION_FAILED: nsIEnigmail.DECRYPTION_FAILED,
	DECRYPTION_OKAY: nsIEnigmail.DECRYPTION_OKAY,
	TRUST_UNDEFINED: nsIEnigmail.UNTRUSTED_IDENTITY,
	TRUST_NEVER: nsIEnigmail.UNTRUSTED_IDENTITY,
	TRUST_MARGINAL: nsIEnigmail.UNTRUSTED_IDENTITY,
	TRUST_FULLY: nsIEnigmail.TRUSTED_IDENTITY,
	TRUST_ULTIMATE: nsIEnigmail.TRUSTED_IDENTITY,
	CARDCTRL: nsIEnigmail.CARDCTRL,
	SC_OP_FAILURE: nsIEnigmail.SC_OP_FAILURE,
	UNKNOWN_ALGO: nsIEnigmail.UNKNOWN_ALGO,
	SIG_CREATED: nsIEnigmail.SIG_CREATED,
	END_ENCRYPTION: nsIEnigmail.END_ENCRYPTION,
	INV_SGNR: 0x100000000,
	};

	///////////////////////////////////////////////////////////////////////////////
	// File read/write operations

	const NS_LOCAL_FILE_CONTRACTID = "@mozilla.org/file/local;1";

	const NS_LOCALFILEOUTPUTSTREAM_CONTRACTID =
	"@mozilla.org/network/file-output-stream;1";

	const NS_RDONLY = 0x01;
	const NS_WRONLY = 0x02;
	const NS_CREATE_FILE = 0x08;
	const NS_TRUNCATE = 0x20;
	const DEFAULT_FILE_PERMS = 0x180; // equals 0600

	const ENC_TYPE_ATTACH_BINARY = 1;
	const ENC_TYPE_ATTACH_ASCII = 2;

	const DUMMY_AGENT_INFO = "none";

	var gKeyAlgorithms = [];

	// Read the contents of a file into a string

	function readFile(filePath) {

	// @filePath: nsIFile

	if (filePath.exists()) {

	var ioServ = Cc[NS_IOSERVICE_CONTRACTID].getService(Ci.nsIIOService);
	if (!ioServ)
	throw Components.results.NS_ERROR_FAILURE;

	var fileURI = ioServ.newFileURI(filePath);
	var fileChannel = ioServ.newChannel(fileURI.asciiSpec, null, null);

	var rawInStream = fileChannel.open();

	var scriptableInStream = Cc[NS_SCRIPTABLEINPUTSTREAM_CONTRACTID].createInstance(Ci.nsIScriptableInputStream);
	scriptableInStream.init(rawInStream);
	var available = scriptableInStream.available();
	var fileContents = scriptableInStream.read(available);
	scriptableInStream.close();
	return fileContents;
	}
	return "";
	}


	///////////////////////////////////////////////////////////////////////////////

	// path initialization function
	// uses persistentDescriptor in case that initWithPath fails
	// (seems to happen frequently with UTF-8 characters in path names)
	function initPath(localFileObj, pathStr) {
	localFileObj.initWithPath(pathStr);

	if (! localFileObj.exists()) {
	localFileObj.persistentDescriptor = pathStr;
	}
	}


	// return the useable path (for gpg) of a file object
	function getFilePath (nsFileObj, creationMode) {
	if (creationMode == null) creationMode = NS_RDONLY;

	return nsFileObj.path;
	}


	///////////////////////////////////////////////////////////////////////////////
	// Utility functions
	///////////////////////////////////////////////////////////////////////////////


	// get a Windows registry value (string)
	// @ keyPath: the path of the registry (e.g. Software\\GNU\\GnuPG)
	// @ keyName: the name of the key to get (e.g. InstallDir)
	// @ rootKey: HKLM, HKCU, etc. (according to constants in nsIWindowsRegKey)
	function getWinRegistryString(keyPath, keyName, rootKey) {
	var registry = Cc["@mozilla.org/windows-registry-key;1"].createInstance(Ci.nsIWindowsRegKey);

	var retval = "";
	try {
	registry.open(rootKey, keyPath, registry.ACCESS_READ);
	retval = registry.readStringValue(keyName);
	registry.close();
	}
	catch (ex) {}

	return retval;
	}

	function getUnicodeData(data) {
	// convert output from subprocess to Unicode

	var tmpStream = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(Ci.nsIStringInputStream);
	tmpStream.setData(data, data.length);
	var inStream = Cc["@mozilla.org/scriptableinputstream;1"].createInstance(Ci.nsIScriptableInputStream);
	inStream.init(tmpStream);
	return inStream.read(tmpStream.available());
	}


	function ExtractMessageId(uri) {
	var messageId = "";

	var matches = uri.match(/^enigmail:message\/(.+)/);

	if (matches && (matches.length > 1)) {
	messageId = matches[1];
	}

	return messageId;
	}

	///////////////////////////////////////////////////////////////////////////////
	// Enigmail protocol handler
	///////////////////////////////////////////////////////////////////////////////

	function EnigmailProtocolHandler()
	{
	}

	EnigmailProtocolHandler.prototype = {

	classDescription: "Enigmail Protocol Handler",
	classID: NS_ENIGMAILPROTOCOLHANDLER_CID,
	contractID: NS_ENIGMAILPROTOCOLHANDLER_CONTRACTID,
	scheme: "enigmail",
	defaultPort: -1,
	protocolFlags: nsIProtocolHandler.URI_INHERITS_SECURITY_CONTEXT \|
	nsIProtocolHandler.URI_LOADABLE_BY_ANYONE \|
	nsIProtocolHandler.URI_NORELATIVE \|
	nsIProtocolHandler.URI_NOAUTH \|
	nsIProtocolHandler.URI_OPENING_EXECUTES_SCRIPT,

	QueryInterface: XPCOMUtils.generateQI([nsIProtocolHandler]),

	newURI: function (aSpec, originCharset, aBaseURI) {
	EC.DEBUG_LOG("enigmail.js: EnigmailProtocolHandler.newURI: aSpec='"+aSpec+"'\n");

	// cut of any parameters potentially added to the URI; these cannot be handled
	if (aSpec.substr(0,14) == "enigmail:dummy") aSpec = "enigmail:dummy";

	var uri = Cc[NS_SIMPLEURI_CONTRACTID].createInstance(Ci.nsIURI);
	uri.spec = aSpec;

	return uri;
	},

	newChannel: function (aURI) {
	EC.DEBUG_LOG("enigmail.js: EnigmailProtocolHandler.newChannel: URI='"+aURI.spec+"'\n");

	var messageId = ExtractMessageId(aURI.spec);

	if (messageId) {
	// Handle enigmail:message/...

	if (!gEnigmailSvc)
	throw Components.results.NS_ERROR_FAILURE;

	var contentType, contentCharset, contentData;

	if (gEnigmailSvc._messageIdList[messageId]) {
	var messageUriObj = gEnigmailSvc._messageIdList[messageId];

	contentType = messageUriObj.contentType;
	contentCharset = messageUriObj.contentCharset;
	contentData = messageUriObj.contentData;

	EC.DEBUG_LOG("enigmail.js: EnigmailProtocolHandler.newChannel: messageURL="+messageUriObj.originalUrl+", content length="+contentData.length+", "+contentType+", "+contentCharset+"\n");

	// do NOT delete the messageUriObj now from the list, this will be done once the message is unloaded (fix for bug 9730).

	} else {

	contentType = "text/plain";
	contentCharset = "";
	contentData = "Enigmail error: invalid URI "+aURI.spec;
	}

	var channel = Ec.newStringChannel(aURI, contentType, "UTF-8", contentData);

	return channel;
	}

	if (aURI.spec == aURI.scheme+":dummy") {
	// Dummy PKCS7 content (to access mimeEncryptedClass)
	channel = Ec.newStringChannel(aURI, "message/rfc822", "", gDummyPKCS7);
	return channel;
	}

	var winName, spec;
	if (aURI.spec == "about:"+aURI.scheme) {
	// About Enigmail
	winName = "about:"+enigmail;
	spec = "chrome://enigmail/content/enigmailAbout.xul";

	} else if (aURI.spec == aURI.scheme+":console") {
	// Display enigmail console messages
	winName = "enigmail:console";
	spec = "chrome://enigmail/content/enigmailConsole.xul";

	} else if (aURI.spec == aURI.scheme+":keygen") {
	// Display enigmail key generation console
	winName = "enigmail:keygen";
	spec = "chrome://enigmail/content/enigmailKeygen.xul";

	} else {
	// Display Enigmail about page
	winName = "about:enigmail";
	spec = "chrome://enigmail/content/enigmailAbout.xul";
	}

	var windowManager = Cc[WMEDIATOR_CONTRACTID].getService(Ci.nsIWindowMediator);

	var winEnum=windowManager.getEnumerator(null);
	var recentWin=null;
	while (winEnum.hasMoreElements() && ! recentWin) {
	var thisWin = winEnum.getNext();
	if (thisWin.location.href==spec) {
	recentWin = thisWin;
	}
	}

	if (recentWin) {
	recentWin.focus();
	} else {
	var appShellSvc = Cc[ASS_CONTRACTID].getService(Ci.nsIAppShellService);
	var domWin = appShellSvc.hiddenDOMWindow;

	domWin.open(spec, "_blank", "chrome,menubar,toolbar,resizable");
	}

	throw Components.results.NS_ERROR_FAILURE;
	},

	allowPort: function (port, scheme) {
	// non-standard ports are not allowed
	return false;
	}
	};


	///////////////////////////////////////////////////////////////////////////////
	// Enigmail encryption/decryption service
	///////////////////////////////////////////////////////////////////////////////


	// Locates STRing in TEXT occurring only at the beginning of a line
	function IndexOfArmorDelimiter(text, str, offset) {
	//EC.DEBUG_LOG("enigmail.js: IndexOfArmorDelimiter: "+str+", "+offset+"\n");

	while (offset < text.length) {

	var loc = text.indexOf(str, offset);

	if ((loc < 1) \|\| (text.charAt(loc-1) == "\n"))
	return loc;

	offset = loc + str.length;
	}

	return -1;
	}


	function Enigmail()
	{
	Components.utils.import("resource://enigmail/enigmailCommon.jsm");
	Components.utils.import("resource://enigmail/commonFuncs.jsm");
	Ec = EnigmailCommon;
	EnigmailGpgAgent.setEnigmailCommon(Ec);

	}

	Enigmail.prototype = {

	classDescription: "Enigmail",
	classID: NS_ENIGMAIL_CID,
	contractID: NS_ENIGMAIL_CONTRACTID,

	initialized: false,
	initializationAttempted: false,
	initializationError: "",

	isWin32 : false,

	prefBranch: null,
	keygenProcess: null, // TODO: remove me
	keygenConsole: null,

	agentType: "",
	agentPath: null,
	connGpgAgentPath: null,
	gpgconfPath: null,
	agentVersion: "",
	gpgAgentProcess: null,
	userIdList: null,
	secretKeyList: null,
	rulesList: null,
	gpgAgentInfo: {preStarted: false, envStr: ""},

	_messageIdList: {},
	_xpcom_factory: {
	createInstance: function (aOuter, iid) {
	// Enigmail is a service -> only instanciate once
	if (gEnigmailSvc == null) {
	gEnigmailSvc = new Enigmail();
	}
	return gEnigmailSvc;
	},
	lockFactory: function (lock) {}
	},
	QueryInterface: XPCOMUtils.generateQI([ nsIEnigmail, nsIObserver, nsISupports ]),


	observe: function (aSubject, aTopic, aData) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.observe: topic='"+aTopic+"' \n");

	if (aTopic == NS_XPCOM_SHUTDOWN_OBSERVER_ID) {
	// XPCOM shutdown
	this.finalize();

	}
	else {
	EC.DEBUG_LOG("enigmail.js: Enigmail.observe: no handler for '"+aTopic+"'\n");
	}
	},

	getLogDirectoryPrefix: function () {
	var logDirectory = "";
	try {
	logDirectory = this.prefBranch.getCharPref("logDirectory");
	} catch (ex) {
	}

	if (!logDirectory)
	return "";

	return logDirectory;
	},


	finalize: function () {
	EC.DEBUG_LOG("enigmail.js: Enigmail.finalize:\n");
	if (!this.initialized) return;

	if (this.gpgAgentProcess != null) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.finalize: stopping gpg-agent PID="+this.gpgAgentProcess+"\n");
	try {
	var libName=subprocess.getPlatformValue(0);
	var libc = ctypes.open(libName);

	//int kill(pid_t pid, int sig);
	var kill = libc.declare("kill",
	ctypes.default_abi,
	ctypes.int,
	ctypes.int32_t,
	ctypes.int);

	kill(parseInt(this.gpgAgentProcess), 15);
	}
	catch (ex) {
	EC.ERROR_LOG("enigmail.js: Enigmail.finalize ERROR: "+ex+"\n");
	}
	}

	EC.onShutdown();

	EC.setLogLevel(3);
	this.initializationError = "";
	this.initializationAttempted = false;
	this.initialized = false;
	},


	initialize: function (domWindow, version, prefBranch) {
	this.initializationAttempted = true;

	this.prefBranch = prefBranch;

	EC.DEBUG_LOG("enigmail.js: Enigmail.initialize: START\n");
	if (this.initialized) return;

	var ioServ = Cc[NS_IOSERVICE_CONTRACTID].getService(Ci.nsIIOService);


	this.isWin32 = (EC.getOS() == "WINNT");

	var prefix = this.getLogDirectoryPrefix();
	if (prefix) {
	EC.setLogLevel(5);
	EC.setLogDirectory(prefix);
	EC.DEBUG_LOG("enigmail.js: Logging debug output to "+prefix+"/enigdbug.txt\n");
	}

	Ec.initialize(this, EC.getLogLevel());

	var environment;
	try {
	environment = Cc["@mozilla.org/process/environment;1"].getService(nsIEnvironment);

	} catch (ex) {
	this.initializationError = EC.getString("enigmimeNotAvail");
	EC.ERROR_LOG("enigmail.js: Enigmail.initialize: Error - "+this.initializationError+"\n");
	EC.DEBUG_LOG("enigmail.js: Enigmail.initialize: exception="+ex.toString()+"\n");
	throw Components.results.NS_ERROR_FAILURE;
	}

	this.environment = environment;

	var nspr_log_modules = environment.get("NSPR_LOG_MODULES");
	var matches = nspr_log_modules.match(/enigmail.js:(\d+)/);

	if (matches && (matches.length > 1)) {
	EC.setLogLevel(Number(matches[1]));
	EC.WARNING_LOG("enigmail.js: Enigmail: LogLevel="+matches[1]+"\n");
	}

	subprocess.registerLogHandler(function(txt) { EC.ERROR_LOG("subprocess.jsm: "+txt); });

	matches = nspr_log_modules.match(/subprocess:(\d+)/);
	if (matches && (matches.length > 1)) {
	if (matches[1] > 2) subprocess.registerDebugHandler(function(txt) { EC.DEBUG_LOG("subprocess.jsm: "+txt); });
	}


	// Initialize global environment variables list
	var passEnv = [ "GNUPGHOME", "GPGDIR", "ETC",
	"ALLUSERSPROFILE", "APPDATA", "BEGINLIBPATH",
	"COMMONPROGRAMFILES", "COMSPEC", "DISPLAY",
	"ENIGMAIL_PASS_ENV", "ENDLIBPATH",
	"HOME", "HOMEDRIVE", "HOMEPATH",
	"LANG", "LANGUAGE", "LC_ALL", "LC_COLLATE", "LC_CTYPE",
	"LC_MESSAGES", "LC_MONETARY", "LC_NUMERIC", "LC_TIME",
	"LOCPATH", "LOGNAME", "LD_LIBRARY_PATH", "MOZILLA_FIVE_HOME",
	"NLSPATH", "PATH", "PATHEXT", "PROGRAMFILES", "PWD",
	"SHELL", "SYSTEMDRIVE", "SYSTEMROOT",
	"TEMP", "TMP", "TMPDIR", "TZ", "TZDIR", "UNIXROOT",
	"USER", "USERPROFILE", "WINDIR" ];

	var passList = this.environment.get("ENIGMAIL_PASS_ENV");
	if (passList) {
	var passNames = passList.split(":");
	for (var k=0; k<passNames.length; k++)
	passEnv.push(passNames[k]);
	}

	Ec.envList = [];
	for (var j=0; j<passEnv.length; j++) {
	var envName = passEnv[j];
	var envValue = this.environment.get(envName);
	if (envValue)
	Ec.envList.push(envName+"="+envValue);
	}

	EC.DEBUG_LOG("enigmail.js: Enigmail.initialize: Ec.envList = "+Ec.envList+"\n");

	try {
	EnigmailConsole.write("Initializing Enigmail service ...\n");

	} catch (ex) {
	this.initializationError = EC.getString("enigmimeNotAvail");
	EC.ERROR_LOG("enigmail.js: Enigmail.initialize: Error - "+this.initializationError+"\n");
	EC.DEBUG_LOG("enigmail.js: Enigmail.initialize: exception="+ex.toString()+"\n");
	throw Components.results.NS_ERROR_FAILURE;
	}

	this.setAgentPath(domWindow);

	this.detectGpgAgent(domWindow);

	if (this.useGpgAgent() && (! EC.isDosLike())) {
	if (this.gpgAgentInfo.envStr != DUMMY_AGENT_INFO)
	Ec.envList.push("GPG_AGENT_INFO="+this.gpgAgentInfo.envStr);
	}


	// Register to observe XPCOM shutdown
	var obsServ = Cc[NS_OBSERVERSERVICE_CONTRACTID].getService();
	obsServ = obsServ.QueryInterface(Ci.nsIObserverService);

	obsServ.addObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);

	Ec.stillActive();
	this.initialized = true;

	EC.DEBUG_LOG("enigmail.js: Enigmail.initialize: END\n");
	},


	useGpgAgent: function() {
	var useAgent = false;

	try {
	if (EC.isDosLike() && !Ec.getGpgFeature("supports-gpg-agent")) {
	useAgent = false;
	}
	else {
	// gpg version >= 2.0.16 launches gpg-agent automatically
	if (Ec.getGpgFeature("autostart-gpg-agent")) {
	useAgent = true;
	EC.DEBUG_LOG("enigmail.js: Setting useAgent to "+useAgent+" for gpg2 >= 2.0.16\n");
	}
	else {
	useAgent = (this.gpgAgentInfo.envStr.length>0 \|\| this.prefBranch.getBoolPref("useGpgAgent"));
	}
	}
	}
	catch (ex) {}
	return useAgent;
	},


	reinitialize: function () {
	this.initialized = false;
	this.initializationAttempted = true;

	EnigmailConsole.write("Reinitializing Enigmail service ...\n");
	this.setAgentPath();
	this.initialized = true;
	},


	determineGpgHomeDir: function () {

	var homeDir = "";

	homeDir = this.environment.get("GNUPGHOME");

	if (! homeDir && this.isWin32) {
	homeDir=getWinRegistryString("Software\\GNU\\GNUPG", "HomeDir", nsIWindowsRegKey.ROOT_KEY_CURRENT_USER);

	if (! homeDir) {
	homeDir = this.environment.get("USERPROFILE");

	if (! homeDir) {
	homeDir = this.environment.get("SystemRoot");
	}

	if (homeDir) homeDir += "\\Application Data\\GnuPG";
	}

	if (! homeDir) homeDir = "C:\\gnupg";
	}

	if (! homeDir) homeDir = this.environment.get("HOME")+"/.gnupg";

	return homeDir;
	},


	setAgentPath: function (domWindow) {
	var agentPath = "";
	try {
	agentPath = this.prefBranch.getCharPref("agentPath");
	} catch (ex) {}

	var agentType = "gpg";

	var agentName = "";

	EnigmailGpgAgent.resetGpgAgent();

	if (EC.isDosLike()) {
	agentName = "gpg.exe";
	}
	else {
	agentName = "gpg;gpg2;gpg1";
	}


	if (agentPath) {
	// Locate GnuPG executable

	// Append default .exe extension for DOS-Like systems, if needed
	if (EC.isDosLike() && (agentPath.search(/\.\w+$/) < 0))
	agentPath += ".exe";

	try {
	var pathDir = Cc[NS_LOCAL_FILE_CONTRACTID].createInstance(Ci.nsIFile);

	if (! EnigmailGpgAgent.isAbsolutePath(agentPath, EC.isDosLike())) {
	// path relative to Mozilla installation dir
	var ds = Cc[DIR_SERV_CONTRACTID].getService();
	var dsprops = ds.QueryInterface(Ci.nsIProperties);
	pathDir = dsprops.get("CurProcD", Ci.nsIFile);

	var dirs=agentPath.split(RegExp(EC.isDosLike() ? "\\\\" : "/"));
	for (var i=0; i< dirs.length; i++) {
	if (dirs[i]!=".") {
	pathDir.append(dirs[i]);
	}
	}
	pathDir.normalize();
	}
	else {
	// absolute path
	initPath(pathDir, agentPath);
	}
	if (! (pathDir.isFile() /* && pathDir.isExecutable()*/))
	throw Components.results.NS_ERROR_FAILURE;
	agentPath = pathDir.QueryInterface(Ci.nsIFile);

	} catch (ex) {
	this.initializationError = EC.getString("gpgNotFound", [ agentPath ]);
	EC.ERROR_LOG("enigmail.js: Enigmail.initialize: Error - "+this.initializationError+"\n");
	throw Components.results.NS_ERROR_FAILURE;
	}

	} else {
	// Resolve relative path using PATH environment variable
	var envPath = this.environment.get("PATH");

	agentPath = EnigmailGpgAgent.resolvePath(agentName, envPath, EC.isDosLike());

	if (!agentPath && EC.isDosLike()) {
	// DOS-like systems: search for GPG in c:\gnupg, c:\gnupg\bin, d:\gnupg, d:\gnupg\bin
	var gpgPath = "c:\\gnupg;c:\\gnupg\\bin;d:\\gnupg;d:\\gnupg\\bin";
	agentPath = EnigmailGpgAgent.resolvePath(agentName, gpgPath, EC.isDosLike());
	}

	if ((! agentPath) && this.isWin32) {
	// Look up in Windows Registry
	try {
	gpgPath = getWinRegistryString("Software\\GNU\\GNUPG", "Install Directory", nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE);
	agentPath = EnigmailGpgAgent.resolvePath(agentName, gpgPath, EC.isDosLike());
	}
	catch (ex) {}

	if (! agentPath) {
	gpgPath = gpgPath + "\\pub";
	agentPath = EnigmailGpgAgent.resolvePath(agentName, gpgPath, EC.isDosLike());
	}
	}

	if (!agentPath && !EC.isDosLike()) {
	// Unix-like systems: check /usr/bin and /usr/local/bin
	gpgPath = "/usr/bin:/usr/local/bin";
	agentPath = EnigmailGpgAgent.resolvePath(agentName, gpgPath, EC.isDosLike());
	}

	if (!agentPath) {
	this.initializationError = EC.getString("gpgNotInPath");
	EC.ERROR_LOG("enigmail.js: Enigmail: Error - "+this.initializationError+"\n");
	throw Components.results.NS_ERROR_FAILURE;
	}
	agentPath = agentPath.QueryInterface(Ci.nsIFile);
	}

	EC.CONSOLE_LOG("EnigmailAgentPath="+Ec.getFilePathDesc(agentPath)+"\n\n");

	this.agentType = agentType;
	this.agentPath = agentPath;

	var command = agentPath;
	var args = [];
	if (agentType == "gpg") {
	args = [ "--version", "--version", "--batch", "--no-tty", "--charset", "utf-8", "--display-charset", "utf-8" ];
	}

	var exitCode = -1;
	var outStr = "";
	var errStr = "";
	EC.DEBUG_LOG("enigmail.js: Enigmail.setAgentPath: calling subprocess with '"+command.path+"'\n");

	EC.CONSOLE_LOG("enigmail> "+Ec.printCmdLine(command, args)+"\n");

	var proc = {
	command: command,
	arguments: args,
	environment: Ec.envList,
	charset: null,
	done: function(result) {
	exitCode = result.exitCode;
	outStr = result.stdout;
	errStr = result.stderr;
	},
	mergeStderr: false
	};

	try {
	subprocess.call(proc).wait();
	} catch (ex) {
	EC.ERROR_LOG("enigmail.js: Enigmail.setAgentPath: subprocess.call failed with '"+ex.toString()+"'\n");
	EC.DEBUG_LOG(" enigmail> DONE with FAILURE\n");
	throw ex;
	}
	EC.DEBUG_LOG(" enigmail> DONE\n");

	if (exitCode != 0) {
	EC.ERROR_LOG("enigmail.js: Enigmail.setAgentPath: gpg failed with exitCode "+exitCode+" msg='"+outStr+" "+errStr+"'\n");
	throw Components.results.NS_ERROR_FAILURE;
	}

	EC.CONSOLE_LOG(outStr+"\n");

	// detection for Gpg4Win wrapper
	if (outStr.search(/^gpgwrap.*;/) == 0) {
	var outLines = outStr.split(/[\n\r]+/);
	var firstLine = outLines[0];
	outLines.splice(0,1);
	outStr = outLines.join("\n");
	agentPath = firstLine.replace(/^.;[ \t]/, "");

	EC.CONSOLE_LOG("gpg4win-gpgwrapper detected; EnigmailAgentPath="+agentPath+"\n\n");
	}

	var versionParts = outStr.replace(/[\r\n]./g,"").replace(/ $gpg4win.*$/i, "").split(/ /);
	var gpgVersion = versionParts[versionParts.length-1];

	EC.DEBUG_LOG("enigmail.js: detected GnuPG version '"+gpgVersion+"'\n");
	this.agentVersion = gpgVersion;

	if (!Ec.getGpgFeature("version-supported")) {
	if (domWindow) Ec.alert(domWindow, EC.getString("oldGpgVersion", [ gpgVersion ]));
	throw Components.results.NS_ERROR_FAILURE;
	}

	this.gpgconfPath = this.resolveToolPath("gpgconf");
	this.connGpgAgentPath = this.resolveToolPath("gpg-connect-agent");

	EC.DEBUG_LOG("enigmail.js: Enigmail.setAgentPath: gpgconf found: "+ (this.gpgconfPath ? "yes" : "no") +"\n");

	},

	// resolve the path for GnuPG helper tools
	resolveToolPath: function(fileName) {
	var filePath = Cc[NS_LOCAL_FILE_CONTRACTID].createInstance(Ci.nsIFile);

	if (EC.isDosLike()) {
	fileName += ".exe";
	}

	filePath = gEnigmailSvc.agentPath.clone();

	filePath.normalize(); // resolve symlinks; remove . / .. etc.

	if (filePath) filePath = filePath.parent;
	if (filePath) {
	filePath.append(fileName);
	if (filePath.exists()) {
	filePath.normalize();
	return filePath;
	}
	}

	var foundPath = EnigmailGpgAgent.resolvePath(fileName, gEnigmailSvc.environment.get("PATH"), EC.isDosLike());
	if (foundPath != null) { foundPath.normalize(); }
	return foundPath;
	},

	detectGpgAgent: function (domWindow) {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent\n");

	function extractAgentInfo(fullStr) {
	if (fullStr) {
	fullStr = fullStr.replace(/[\r\n]/g, "");
	fullStr = fullStr.replace(/^.*\=/,"");
	fullStr = fullStr.replace(/\;.*$/,"");
	return fullStr;
	}
	else
	return "";
	}

	var gpgAgentInfo = this.environment.get("GPG_AGENT_INFO");
	if (gpgAgentInfo && gpgAgentInfo.length>0) {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: GPG_AGENT_INFO variable available\n");
	// env. variable suggests running gpg-agent
	this.gpgAgentInfo.preStarted = true;
	this.gpgAgentInfo.envStr = gpgAgentInfo;
	Ec.gpgAgentIsOptional = false;
	}
	else {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: no GPG_AGENT_INFO variable set\n");
	this.gpgAgentInfo.preStarted = false;

	if (Ec.getGpgFeature("supports-gpg-agent")) {
	Ec.gpgAgentIsOptional = false;
	if (Ec.getGpgFeature("autostart-gpg-agent")) {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: gpg 2.0.16 or newer - not starting agent\n");
	}
	else {
	var command = null;

	var outStr = "";
	var errorStr = "";
	var exitCode = -1;

	if (this.connGpgAgentPath && this.connGpgAgentPath.isExecutable()) {
	// try to connect to a running gpg-agent

	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: gpg-connect-agent is executable\n");

	this.gpgAgentInfo.envStr = DUMMY_AGENT_INFO;

	command = this.connGpgAgentPath.QueryInterface(Ci.nsIFile);

	EC.CONSOLE_LOG("enigmail> "+command.path+"\n");

	try {
	subprocess.call({
	command: command,
	environment: Ec.envList,
	stdin: "/echo OK\n",
	charset: null,
	done: function(result) {
	EC.DEBUG_LOG("detectGpgAgent detection terminated with "+result.exitCode+"\n");
	exitCode = result.exitCode;
	outStr = result.stdout;
	errorStr = result.stderr;
	if (result.stdout.substr(0,2) == "OK") exitCode = 0;
	},
	mergeStderr: false
	}).wait();
	} catch (ex) {
	EC.ERROR_LOG("enigmail.js: detectGpgAgent: "+command.path+" failed\n");
	EC.DEBUG_LOG(" enigmail> DONE with FAILURE\n");
	exitCode = -1;
	}
	Ec.DEBUG_LOG(" enigmail> DONE\n");

	if (exitCode == 0) {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: found running gpg-agent\n");
	return;
	}
	else {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: no running gpg-agent. Output='"+outStr+"' error text='"+errorStr+"'\n");
	}

	}

	// and finally try to start gpg-agent
	var args = [];
	var commandFile = this.resolveToolPath("gpg-agent");
	var agentProcess = null;

	if ((! commandFile) \|\| (! commandFile.exists())) {
	commandFile = this.resolveToolPath("gpg-agent2");
	}

	if (commandFile && commandFile.exists()) {
	command = commandFile.QueryInterface(Ci.nsIFile);
	}

	if (command == null) {
	EC.ERROR_LOG("enigmail.js: detectGpgAgent: gpg-agent not found\n");
	Ec.alert(domWindow, EC.getString("gpgAgentNotStarted", [ this.agentVersion ]));
	throw Components.results.NS_ERROR_FAILURE;
	}
	}

	if ((! EC.isDosLike()) && (! Ec.getGpgFeature("autostart-gpg-agent"))) {

	// create unique tmp file
	var ds = Cc[DIR_SERV_CONTRACTID].getService();
	var dsprops = ds.QueryInterface(Ci.nsIProperties);
	var tmpFile = dsprops.get("TmpD", Ci.nsIFile);
	tmpFile.append("gpg-wrapper.tmp");
	tmpFile.createUnique(tmpFile.NORMAL_FILE_TYPE, DEFAULT_FILE_PERMS);
	args = [ command.path,
	tmpFile.path,
	"--sh", "--no-use-standard-socket",
	"--daemon",
	"--default-cache-ttl", (Ec.getMaxIdleMinutes()*60).toString(),
	"--max-cache-ttl", "999999" ]; // ca. 11 days

	try {
	var process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
	var exec = Ec.getInstallLocation().clone();
	exec.append("wrappers");
	exec.append("gpg-agent-wrapper.sh");
	process.init(exec);
	process.run(true, args, args.length);

	if (! tmpFile.exists()) {
	EC.ERROR_LOG("enigmail.js: detectGpgAgent no temp file created\n");
	}
	else {
	outStr = readFile(tmpFile);
	tmpFile.remove(false);
	exitCode = 0;
	}
	} catch (ex) {
	EC.ERROR_LOG("enigmail.js: detectGpgAgent: failed with '"+ex+"'\n");
	exitCode = -1;
	}

	if (exitCode == 0) {
	this.gpgAgentInfo.envStr = extractAgentInfo(outStr);
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: started -> "+this.gpgAgentInfo.envStr+"\n");
	this.gpgAgentProcess = this.gpgAgentInfo.envStr.split(":")[1];
	}
	else {
	EC.ERROR_LOG("enigmail.js: detectGpgAgent: gpg-agent output: "+outStr+"\n");
	Ec.alert(domWindow, EC.getString("gpgAgentNotStarted", [ this.agentVersion ]));
	throw Components.results.NS_ERROR_FAILURE;
	}
	}
	else {
	this.gpgAgentInfo.envStr = DUMMY_AGENT_INFO;
	var envFile = Components.classes[NS_LOCAL_FILE_CONTRACTID].createInstance(Ci.nsIFile);
	initPath(envFile, this.determineGpgHomeDir());
	envFile.append("gpg-agent.conf");

	var data="default-cache-ttl " + (Ec.getMaxIdleMinutes()*60)+"\n";
	data += "max-cache-ttl 999999";
	if (! envFile.exists()) {
	try {
	var flags = 0x02 \| 0x08 \| 0x20;
	var fileOutStream = Cc[NS_LOCALFILEOUTPUTSTREAM_CONTRACTID].createInstance(Ci.nsIFileOutputStream);
	fileOutStream.init(envFile, flags, 0600, 0);
	fileOutStream.write(data, data.length);
	fileOutStream.flush();
	fileOutStream.close();
	}
	catch (ex) {} // ignore file write errors
	}
	}
	}
	else {
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent - gpg 1.x found\n");
	}
	}
	EC.DEBUG_LOG("enigmail.js: detectGpgAgent: GPG_AGENT_INFO='"+this.gpgAgentInfo.envStr+"'\n");
	},


	simpleExecCmd: function (command, args, exitCodeObj, errorMsgObj)
	{
	EC.WRITE_LOG("enigmail.js: Enigmail.simpleExecCmd: command = "+command+" "+args.join(" ")+"\n");

	var envList = [];
	envList = envList.concat(Ec.envList);

	var outputData = "";
	var errOutput = "";

	EC.CONSOLE_LOG("enigmail> "+EC.printCmdLine(command, args)+"\n");

	try {
	subprocess.call({
	command: command,
	arguments: args,
	charset: null,
	environment: envList,
	done: function(result) {
	exitCodeObj.value = result.exitCode;
	outputData = result.stdout;
	errOutput = result.stderr;
	},
	mergeStderr: false
	}).wait();
	}
	catch (ex) {
	EC.ERROR_LOG("enigmail.js: simpleExecCmd: "+command.path+" failed\n");
	EC.DEBUG_LOG(" enigmail> DONE with FAILURE\n");
	exitCodeObj.value = -1;
	}
	Ec.DEBUG_LOG(" enigmail> DONE\n");

	if (errOutput)
	errorMsgObj.value = errOutput;

	EC.DEBUG_LOG("enigmail.js: Enigmail.simpleExecCmd: exitCode = "+exitCodeObj.value+"\n");
	EC.DEBUG_LOG("enigmail.js: Enigmail.simpleExecCmd: errOutput = "+errOutput+"\n");

	Ec.stillActive();

	return outputData;
	},


	execCmd: function (command, args, passphrase, input, exitCodeObj, statusFlagsObj,
	statusMsgObj, errorMsgObj)
	{
	EC.WRITE_LOG("enigmail.js: Enigmail.execCmd: subprocess = '"+command.path+"'\n");

	if ((typeof input) != "string") input = "";
	var prependPassphrase = ((typeof passphrase) == "string");

	var envList = [];
	envList = envList.concat(Ec.envList);

	var preInput;

	if (prependPassphrase) {
	preInput = passphrase;
	input = "\n" + input;

	} else {
	preInput = "";
	}

	if (input.length == 0 && preInput.length == 0)

	EC.CONSOLE_LOG("enigmail> "+EC.printCmdLine(command, args)+"\n");

	var proc = {
	command: command,
	arguments: args,
	environment: envList,
	charset: null,
	stdin: function(pipe) {
	if (input.length > 0 \|\| preInput.length > 0) {
	pipe.write(preInput + input);
	}
	pipe.close();
	},
	done: function(result) {
	this.exitCode = result.exitCode;
	this.resultData = result.stdout;
	this.errorData = result.stderr;
	},
	mergeStderr: false,
	resultData: "",
	errorData: "",
	exitCode: -1
	};

	try {
	subprocess.call(proc).wait();
	exitCodeObj.value = proc.exitCode;

	} catch (ex) {
	EC.ERROR_LOG("enigmail.js: Enigmail.execCmd: subprocess.call failed with '"+ex.toString()+"'\n");
	EC.DEBUG_LOG(" enigmail> DONE with FAILURE\n");
	exitCodeObj.value = -1;
	}
	Ec.DEBUG_LOG(" enigmail> DONE\n");

	var outputData = "";
	var errOutput = "";

	if (proc.resultData) outputData = proc.resultData;
	if (proc.errorData) errOutput = proc.errorData;

	EC.DEBUG_LOG("enigmail.js: Enigmail.execCmd: exitCode = "+exitCodeObj.value+"\n");
	EC.DEBUG_LOG("enigmail.js: Enigmail.execCmd: errOutput = "+errOutput+"\n");

	var retObj = {};

	errorMsgObj.value = Ec.parseErrorOutput(errOutput, retObj);
	statusFlagsObj.value = retObj.statusFlags;
	statusMsgObj.value = retObj.statusMsg;
	var blockSeparation = retObj.blockSeparation;

	exitCodeObj.value = Ec.fixExitCode(proc.exitCode, statusFlagsObj.value);

	if (blockSeparation.indexOf(" ") > 0) {
	exitCodeObj.value = 2;
	}

	EC.CONSOLE_LOG(errorMsgObj.value+"\n");

	Ec.stillActive();

	return outputData;
	},


	encryptMessage: function (parent, uiFlags, plainText, fromMailAddr, toMailAddr, bccMailAddr, sendFlags,
	exitCodeObj, statusFlagsObj, errorMsgObj)
	{
	EC.DEBUG_LOG("enigmail.js: Enigmail.encryptMessage: "+plainText.length+" bytes from "+fromMailAddr+" to "+toMailAddr+" ("+sendFlags+")\n");

	exitCodeObj.value = -1;
	statusFlagsObj.value = 0;
	errorMsgObj.value = "";

	if (!plainText) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.encryptMessage: NO ENCRYPTION!\n");
	exitCodeObj.value = 0;
	EnigmailCommon.DEBUG_LOG(" <=== encryptMessage()\n");
	return plainText;
	}

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.encryptMessage: not yet initialized\n");
	errorMsgObj.value = Ec.getString("notInit");
	return "";
	}

	var defaultSend = sendFlags & nsIEnigmail.SEND_DEFAULT;
	var signMsg = sendFlags & nsIEnigmail.SEND_SIGNED;
	var encryptMsg = sendFlags & nsIEnigmail.SEND_ENCRYPTED;

	if (encryptMsg) {
	// First convert all linebreaks to newlines
	plainText = plainText.replace(/\r\n/g, "\n");
	plainText = plainText.replace(/\r/g, "\n");

	// we need all data in CRLF according to RFC 4880
	plainText = plainText.replace(/\n/g, "\r\n");
	}

	var inspector = Cc["@mozilla.org/jsinspector;1"].createInstance(Ci.nsIJSInspector);

	var listener = Ec.newSimpleListener(
	function _stdin (pipe) {
	pipe.write(plainText);
	pipe.close();
	},
	function _done(exitCode) {
	// unlock wait
	if (inspector.eventLoopNestLevel > 0) {
	inspector.exitNestedEventLoop();
	}
	});


	var proc = Ec.encryptMessageStart(parent, uiFlags,
	fromMailAddr, toMailAddr, bccMailAddr,
	null, sendFlags,
	listener, statusFlagsObj, errorMsgObj);
	if (! proc) {
	exitCodeObj.value = -1;
	EnigmailCommon.DEBUG_LOG(" <=== encryptMessage()\n");
	return "";
	}

	// Wait for child pipes to close
	inspector.enterNestedEventLoop(0);

	var retStatusObj = {};
	exitCodeObj.value = Ec.encryptMessageEnd(getUnicodeData(listener.stderrData), listener.exitCode,
	uiFlags, sendFlags,
	listener.stdoutData.length,
	retStatusObj);

	statusFlagsObj.value = retStatusObj.statusFlags;
	errorMsgObj.value = retStatusObj.errorMsg;


	if ((exitCodeObj.value == 0) && listener.stdoutData.length == 0)
	exitCodeObj.value = -1;

	if (exitCodeObj.value == 0) {
	// Normal return
	EnigmailCommon.DEBUG_LOG(" <=== encryptMessage()\n");
	return getUnicodeData(listener.stdoutData);
	}

	// Error processing
	EC.DEBUG_LOG("enigmail.js: Enigmail.encryptMessage: command execution exit code: "+exitCodeObj.value+"\n");
	return "";
	},


	// Locates offsets bracketing PGP armored block in text,
	// starting from given offset, and returns block type string.
	// beginIndex = offset of first character of block
	// endIndex = offset of last character of block (newline)
	// If block is not found, the null string is returned;

	locateArmoredBlock: function (text, offset, indentStr, beginIndexObj, endIndexObj,
	indentStrObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.locateArmoredBlock: "+offset+", '"+indentStr+"'\n");

	beginIndexObj.value = -1;
	endIndexObj.value = -1;

	var beginIndex = IndexOfArmorDelimiter(text, indentStr+"-----BEGIN PGP ", offset);

	if (beginIndex == -1) {
	var blockStart=text.indexOf("-----BEGIN PGP ");
	if (blockStart>=0) {
	var indentStart=text.search(/\n.*\-\-\-\-\-BEGIN PGP /)+1;
	indentStrObj.value=text.substring(indentStart, blockStart);
	indentStr=indentStrObj.value;
	beginIndex = IndexOfArmorDelimiter(text, indentStr+"-----BEGIN PGP ", offset);
	}
	}

	if (beginIndex == -1)
	return "";

	// Locate newline at end of armor header
	offset = text.indexOf("\n", beginIndex);

	if (offset == -1)
	return "";

	var endIndex = IndexOfArmorDelimiter(text, indentStr+"-----END PGP ", offset);

	if (endIndex == -1)
	return "";

	// Locate newline at end of PGP block
	endIndex = text.indexOf("\n", endIndex);

	if (endIndex == -1) {
	// No terminating newline
	endIndex = text.length - 1;
	}

	var blockHeader = text.substr(beginIndex, offset-beginIndex+1);

	var blockRegex = new RegExp("^" + indentStr +
	"-----BEGIN PGP (.)-----\\s\\r?\\n");

	var matches = blockHeader.match(blockRegex);

	var blockType = "";
	if (matches && (matches.length > 1)) {
	blockType = matches[1];
	EC.DEBUG_LOG("enigmail.js: Enigmail.locateArmoredBlock: blockType="+blockType+"\n");
	}

	if (blockType == "UNVERIFIED MESSAGE") {
	// Skip any unverified message block
	return this.locateArmoredBlock(text, endIndex+1, indentStr,
	beginIndexObj, endIndexObj, indentStrObj);
	}

	beginIndexObj.value = beginIndex;
	endIndexObj.value = endIndex;

	return blockType;
	},


	/*
	* locateArmoredBlocks returns an array with GPGBlock positions
	*
	* Struct:
	* int obj.begin
	* int obj.end
	* string obj.blocktype
	*
	*
	* @param string text
	*
	* @return empty array if no block was found
	*
	*/
	locateArmoredBlocks: function(text) {
	var indentStr = "";
	var indentStrObj = new Object();
	var beginObj = new Object();
	var endObj = new Object();
	var blocks = [];
	var i = 0;

	while (( b = this.locateArmoredBlock(text, i, indentStr, beginObj, endObj, indentStrObj)) != "") {
	e = new Object();
	e.begin = beginObj.value;
	e.end = endObj.value;
	e.blocktype = b;
	blocks.push(e);

	i = e.end;
	}

	Ec.DEBUG_LOG("enigmail.js: locateArmorBlocks: Found " + blocks.length + " Blocks\n");
	return blocks;
	},

	extractSignaturePart: function (signatureBlock, part) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.extractSignaturePart: part="+part+"\n");

	// Search for blank line
	var offset = signatureBlock.search(/\n\s*\r?\n/);
	if (offset == -1)
	return "";

	offset = signatureBlock.indexOf("\n", offset+1);
	if (offset == -1)
	return "";

	var beginIndex = signatureBlock.indexOf("-----BEGIN PGP SIGNATURE-----",
	offset+1);
	if (beginIndex == -1)
	return "";

	if (part == nsIEnigmail.SIGNATURE_TEXT) {
	var signedText = signatureBlock.substr(offset+1, beginIndex-offset-1);

	// Unescape leading dashes
	signedText = signedText.replace(/^- -/, "-");
	signedText = signedText.replace(/\n- -/g, "\n-");
	signedText = signedText.replace(/\r- -/g, "\r-");

	return signedText;
	}

	// Locate newline at end of armor header
	offset = signatureBlock.indexOf("\n", beginIndex);

	if (offset == -1)
	return "";

	var endIndex = signatureBlock.indexOf("-----END PGP SIGNATURE-----", offset);
	if (endIndex == -1)
	return "";

	var signBlock = signatureBlock.substr(offset, endIndex-offset);

	// Search for blank line
	var armorIndex = signBlock.search(/\n\s*\r?\n/);
	if (armorIndex == -1)
	return "";

	if (part == nsIEnigmail.SIGNATURE_HEADERS) {
	return signBlock.substr(1, armorIndex);
	}

	armorIndex = signBlock.indexOf("\n", armorIndex+1);
	if (armorIndex == -1)
	return "";

	if (part == nsIEnigmail.SIGNATURE_ARMOR) {
	var armorData = signBlock.substr(armorIndex, endIndex-armorIndex);
	armorData = armorData.replace(/\s*/g, "");
	return armorData;
	}

	return "";
	},


	statusObjectFrom: function (signatureObj, exitCodeObj, statusFlagsObj, keyIdObj, userIdObj, sigDetailsObj, errorMsgObj, blockSeparationObj, encToDetailsObj) {
	return {
	signature: signatureObj,
	exitCode: exitCodeObj,
	statusFlags: statusFlagsObj,
	keyId: keyIdObj,
	userId: userIdObj,
	sigDetails: sigDetailsObj,
	message: errorMsgObj,
	blockSeparation: blockSeparationObj,
	encToDetails: encToDetailsObj
	};
	},


	newStatusObject: function () {
	return this.statusObjectFrom({value: ""}, {}, {}, {}, {}, {}, {}, {}, {});
	},


	inlineInnerVerification: function (parent, uiFlags, text, statusObject) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.inlineInnerVerification\n");

	if (text && text.indexOf("-----BEGIN PGP SIGNED MESSAGE-----") == 0) {
	var status = this.newStatusObject();
	var newText = this.decryptMessage(parent, uiFlags, text,
	status.signature, status.exitCode, status.statusFlags, status.keyId, status.userId,
	status.sigDetails, status.message, status.blockSeparation, status.encToDetails);
	if (status.exitCode.value == 0) {
	text = newText;
	// merge status into status object:
	statusObject.statusFlags.value = statusObject.statusFlags.value \| status.statusFlags.value;
	statusObject.keyId.value = status.keyId.value;
	statusObject.userId.value = status.userId.value;
	statusObject.sigDetails.value = status.sigDetails.value;
	statusObject.message.value = status.message.value;
	// we don't merge encToDetails
	}
	}

	return text;
	},


	/**
	* Decrypts a PGP ciphertext and returns the the plaintext
	*
	*in @parent a window object
	*in @uiFlags see flag options in nsIEnigmail.idl, UI_INTERACTIVE, UI_ALLOW_KEY_IMPORT
	*in @cipherText a string containing a PGP Block
	*out @signatureObj
	*out @exitCodeObj contains the exit code
	*out @statusFlagsObj see status flags in nslEnigmail.idl, GOOD_SIGNATURE, BAD_SIGNATURE
	*out @keyIdObj holds the key id
	*out @userIdObj holds the user id
	*out @sigDetailsObj
	*out @errorMsgObj error string
	*out @blockSeparationObj
	*out @encToDetailsObj returns in details, which keys the mesage was encrypted for (ENC_TO entries)
	*
	* @return string plaintext ("" if error)
	*
	*/
	decryptMessage: function (parent, uiFlags, cipherText,
	signatureObj, exitCodeObj,
	statusFlagsObj, keyIdObj, userIdObj, sigDetailsObj, errorMsgObj,
	blockSeparationObj, encToDetailsObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.decryptMessage: "+cipherText.length+" bytes, "+uiFlags+"\n");

	if (! cipherText)
	return "";

	var interactive = uiFlags & nsIEnigmail.UI_INTERACTIVE;
	var allowImport = uiFlags & nsIEnigmail.UI_ALLOW_KEY_IMPORT;
	var unverifiedEncryptedOK = uiFlags & nsIEnigmail.UI_UNVERIFIED_ENC_OK;
	var oldSignature = signatureObj.value;

	EC.DEBUG_LOG("enigmail.js: Enigmail.decryptMessage: oldSignature="+oldSignature+"\n");

	signatureObj.value = "";
	exitCodeObj.value = -1;
	statusFlagsObj.value = 0;
	keyIdObj.value = "";
	userIdObj.value = "";
	errorMsgObj.value = "";

	var beginIndexObj = {};
	var endIndexObj = {};
	var indentStrObj = {};
	var blockType = this.locateArmoredBlock(cipherText, 0, "",
	beginIndexObj, endIndexObj, indentStrObj);

	if (!blockType \|\| blockType == "SIGNATURE") {
	errorMsgObj.value = EC.getString("noPGPblock");
	statusFlagsObj.value \|= nsIEnigmail.DISPLAY_MESSAGE;
	return "";
	}

	var publicKey = (blockType == "PUBLIC KEY BLOCK");

	var verifyOnly = (blockType == "SIGNED MESSAGE");

	var pgpBlock = cipherText.substr(beginIndexObj.value,
	endIndexObj.value - beginIndexObj.value + 1);

	if (indentStrObj.value) {
	RegExp.multiline = true;
	var indentRegexp = new RegExp("^"+indentStrObj.value, "g");
	pgpBlock = pgpBlock.replace(indentRegexp, "");
	if (indentStrObj.value.substr(-1) == " ") {
	var indentRegexpStr = "^"+indentStrObj.value.replace(/ $/, "$");
	indentRegexp = new RegExp(indentRegexpStr, "g");
	pgpBlock = pgpBlock.replace(indentRegexp, "");
	}
	RegExp.multiline = false;
	}

	// HACK to better support messages from Outlook: if there are empty lines, drop them
	if (pgpBlock.search(/MESSAGE-----\r?\n\r?\nVersion/) >=0) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.decryptMessage: apply Outlook empty line workaround\n");
	pgpBlock = pgpBlock.replace( /\r?\n\r?\n/g, "\n" );
	}

	var head = cipherText.substr(0, beginIndexObj.value);
	var tail = cipherText.substr(endIndexObj.value+1,
	cipherText.length - endIndexObj.value - 1);

	if (publicKey) {
	if (!allowImport) {
	errorMsgObj.value = EC.getString("decryptToImport");
	statusFlagsObj.value \|= nsIEnigmail.DISPLAY_MESSAGE;
	statusFlagsObj.value \|= nsIEnigmail.INLINE_KEY;

	return "";
	}

	// Import public key
	var importFlags = nsIEnigmail.UI_INTERACTIVE;
	exitCodeObj.value = this.importKey(parent, importFlags, pgpBlock, "",
	errorMsgObj);
	if (exitCodeObj.value == 0) {
	statusFlagsObj.value \|= nsIEnigmail.IMPORTED_KEY;
	}
	return "";
	}

	var newSignature = "";

	if (verifyOnly) {
	newSignature = this.extractSignaturePart(pgpBlock,
	nsIEnigmail.SIGNATURE_ARMOR);

	if (oldSignature && (newSignature != oldSignature)) {
	EC.ERROR_LOG("enigmail.js: Enigmail.decryptMessage: Error - signature mismatch "+newSignature+"\n");
	errorMsgObj.value = EC.getString("sigMismatch");
	statusFlagsObj.value \|= nsIEnigmail.DISPLAY_MESSAGE;

	return "";
	}
	}

	var startErrorMsgObj = {};
	var noOutput = false;

	var listener = Ec.newSimpleListener(
	function _stdin (pipe) {
	pipe.write(pgpBlock);
	pipe.close();
	});

	var maxOutput = pgpBlock.length * 100; // limit output to 100 times message size
	// to avoid DoS attack
	var proc = Ec.decryptMessageStart(parent, verifyOnly, noOutput, listener,
	statusFlagsObj, startErrorMsgObj,
	null, maxOutput);

	if (!proc) {
	errorMsgObj.value = startErrorMsgObj.value;
	statusFlagsObj.value \|= nsIEnigmail.DISPLAY_MESSAGE;

	return "";
	}

	// Wait for child to close
	proc.wait();

	var plainText = getUnicodeData(listener.stdoutData);

	var retStatusObj = {};
	var exitCode = Ec.decryptMessageEnd(getUnicodeData(listener.stderrData), listener.exitCode,
	plainText.length, verifyOnly, noOutput,
	uiFlags, retStatusObj);
	exitCodeObj.value = exitCode;
	statusFlagsObj.value = retStatusObj.statusFlags;
	errorMsgObj.value = retStatusObj.errorMsg;

	userIdObj.value = retStatusObj.userId;
	keyIdObj.value = retStatusObj.keyId;
	sigDetailsObj.value = retStatusObj.sigDetails;
	if (encToDetailsObj) {
	encToDetailsObj.value = retStatusObj.encToDetails;
	}
	blockSeparationObj.value = retStatusObj.blockSeparation;

	if ((head.search(/\S/) >= 0) \|\|
	(tail.search(/\S/) >= 0)) {
	statusFlagsObj.value \|= nsIEnigmail.PARTIALLY_PGP;
	}


	if (exitCodeObj.value == 0) {
	// Normal return

	var doubleDashSeparator = false;
	try {
	doubleDashSeparator = this.prefBranch.getBoolPref("doubleDashSeparator");
	} catch(ex) { }

	if (doubleDashSeparator && (plainText.search(/(\r\|\n)-- +(\r\|\n)/) < 0) ) {
	// Workaround for MsgCompose stripping trailing spaces from sig separator
	plainText = plainText.replace(/(\r\|\n)--(\r\|\n)/, "$1-- $2");
	}

	statusFlagsObj.value \|= nsIEnigmail.DISPLAY_MESSAGE;

	if (verifyOnly && indentStrObj.value) {
	RegExp.multiline = true;
	plainText = plainText.replace(/^/g, indentStrObj.value);
	RegExp.multiline = false;
	}

	return this.inlineInnerVerification(parent, uiFlags, plainText,
	this.statusObjectFrom(signatureObj, exitCodeObj, statusFlagsObj, keyIdObj, userIdObj,
	sigDetailsObj, errorMsgObj, blockSeparationObj, encToDetailsObj));
	}

	var pubKeyId = keyIdObj.value;

	if (statusFlagsObj.value & nsIEnigmail.BAD_SIGNATURE) {
	if (verifyOnly && indentStrObj.value) {
	// Probably replied message that could not be verified
	errorMsgObj.value = EC.getString("unverifiedReply")+"\n\n"+errorMsgObj.value;
	return "";
	}

	// Return bad signature (for checking later)
	signatureObj.value = newSignature;

	} else if (pubKeyId &&
	(statusFlagsObj.value & nsIEnigmail.UNVERIFIED_SIGNATURE)) {

	var innerKeyBlock;
	if (verifyOnly) {
	// Search for indented public key block in signed message
	var innerBlockType = this.locateArmoredBlock(pgpBlock, 0, "- ",
	beginIndexObj, endIndexObj,
	indentStrObj);

	if (innerBlockType == "PUBLIC KEY BLOCK") {

	innerKeyBlock = pgpBlock.substr(beginIndexObj.value,
	endIndexObj.value - beginIndexObj.value + 1);

	innerKeyBlock = innerKeyBlock.replace(/- -----/g, "-----");

	statusFlagsObj.value \|= nsIEnigmail.INLINE_KEY;
	EC.DEBUG_LOG("enigmail.js: Enigmail.decryptMessage: innerKeyBlock found\n");
	}
	}

	if (allowImport) {

	var importedKey = false;

	if (innerKeyBlock) {
	var importErrorMsgObj = {};
	var importFlags2 = nsIEnigmail.UI_INTERACTIVE;
	var exitStatus = this.importKey(parent, importFlags2, innerKeyBlock,
	pubKeyId, importErrorMsgObj);

	importedKey = (exitStatus == 0);

	if (exitStatus > 0) {
	Ec.alert(parent, EC.getString("cantImport")+importErrorMsgObj.value);
	}
	}

	if (importedKey) {
	// Recursive call; note that nsIEnigmail.UI_ALLOW_KEY_IMPORT is unset
	// to break the recursion
	var uiFlagsDeep = interactive ? nsIEnigmail.UI_INTERACTIVE : 0;
	signatureObj.value = "";
	return this.decryptMessage(parent, uiFlagsDeep, pgpBlock,
	signatureObj, exitCodeObj, statusFlagsObj,
	keyIdObj, userIdObj, sigDetailsObj, errorMsgObj);
	}

	}

	if (plainText && !unverifiedEncryptedOK) {
	// Append original PGP block to unverified message
	plainText = "-----BEGIN PGP UNVERIFIED MESSAGE-----\r\n" + plainText +
	"-----END PGP UNVERIFIED MESSAGE-----\r\n\r\n" + pgpBlock;
	}

	}

	return verifyOnly ? "" : plainText;
	},



	extractKey: function (parent, exportFlags, userId, outputFile, exitCodeObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.extractKey: "+userId+"\n");

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.extractKey: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return "";
	}

	var uidList=userId.split(/[ ,\t]+/);

	var args = Ec.getAgentArgs(true);
	args = args.concat(["-a", "--export"]);
	args = args.concat(uidList);

	var statusFlagsObj = {};
	var statusMsgObj = {};
	var cmdErrorMsgObj = {};

	var keyBlock = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if ((exitCodeObj.value == 0) && !keyBlock)
	exitCodeObj.value = -1;

	if (exitCodeObj.value != 0) {
	errorMsgObj.value = EC.getString("failKeyExtract");

	if (cmdErrorMsgObj.value) {
	errorMsgObj.value += "\n" + EC.printCmdLine(this.agentPath, args);
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}

	return "";
	}

	if (exportFlags & nsIEnigmail.EXTRACT_SECRET_KEY) {
	args = Ec.getAgentArgs(true);
	args = args.concat(["-a", "--export-secret-keys"]);
	args = args.concat(uidList);

	var secKeyBlock = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if ((exitCodeObj.value == 0) && !secKeyBlock)
	exitCodeObj.value = -1;

	if (exitCodeObj.value != 0) {
	errorMsgObj.value = EC.getString("failKeyExtract");

	if (cmdErrorMsgObj.value) {
	errorMsgObj.value += "\n" + EC.printCmdLine(this.agentPath, args);;
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}

	return "";
	}

	if (keyBlock.substr(-1,1).search(/[\r\n]/)<0) keyBlock += "\n";
	keyBlock+=secKeyBlock;
	}

	if (outputFile) {
	if (! EnigmailFuncs.writeFileContents(outputFile, keyBlock, DEFAULT_FILE_PERMS)) {
	exitCodeObj.value = -1;
	errorMsgObj.value = EC.getString("fileWriteFailed", [ outputFile ]);
	}
	return "";
	}
	return keyBlock;
	},


	// ExitCode == 0 => success
	// ExitCode > 0 => error
	// ExitCode == -1 => Cancelled by user
	importKey: function (parent, uiFlags, msgText, keyId, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.importKey: id="+keyId+", "+uiFlags+"\n");

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.importKey: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return 1;
	}

	var beginIndexObj = {};
	var endIndexObj = {};
	var indentStrObj = {};
	var blockType = this.locateArmoredBlock(msgText, 0, "",
	beginIndexObj, endIndexObj,
	indentStrObj);

	if (!blockType) {
	errorMsgObj.value = EC.getString("noPGPblock");
	return 1;
	}

	if (blockType != "PUBLIC KEY BLOCK") {
	errorMsgObj.value = EC.getString("notFirstBlock");
	return 1;
	}

	var pgpBlock = msgText.substr(beginIndexObj.value,
	endIndexObj.value - beginIndexObj.value + 1);

	var interactive = uiFlags & nsIEnigmail.UI_INTERACTIVE;

	if (interactive) {
	if (!Ec.confirmDlg(parent, EC.getString("importKeyConfirm"), EC.getString("keyMan.button.import"))) {
	errorMsgObj.value = EC.getString("failCancel");
	return -1;
	}
	}

	var args = Ec.getAgentArgs(true);
	args.push("--import");

	var exitCodeObj = {};
	var statusFlagsObj = {};
	var statusMsgObj = {};

	var output = this.execCmd(this.agentPath, args, null, pgpBlock,
	exitCodeObj, statusFlagsObj, statusMsgObj, errorMsgObj);

	var statusMsg = statusMsgObj.value;

	var pubKeyId;

	if (exitCodeObj.value == 0) {
	// Normal return
	this.invalidateUserIdList();
	if (statusMsg && (statusMsg.search("IMPORTED ") > -1)) {
	var matches = statusMsg.match(/(^\|\n)IMPORTED (\w{8})(\w{8})/);

	if (matches && (matches.length > 3)) {
	pubKeyId = "0x" + matches[3];
	EC.DEBUG_LOG("enigmail.js: Enigmail.importKey: IMPORTED "+pubKeyId+"\n");
	}
	}
	}

	return exitCodeObj.value;
	},

	importKeyFromFile: function (parent, inputFile, errorMsgObj, importedKeysObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.importKeyFromFile: fileName="+inputFile.path+"\n");
	importedKeysObj.value="";

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.importKeyFromFile: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return 1;
	}

	var fileName=Ec.getEscapedFilename(getFilePath(inputFile.QueryInterface(Ci.nsIFile)));

	var args = Ec.getAgentArgs(true);
	args.push("--import");
	args.push(fileName);

	var statusFlagsObj = {};
	var statusMsgObj = {};
	var exitCodeObj = {};

	var output = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, errorMsgObj);

	var statusMsg = statusMsgObj.value;

	var keyList = new Array();

	if (exitCodeObj.value == 0) {
	// Normal return
	this.invalidateUserIdList();

	var statusLines = statusMsg.split(/\r?\n/);

	// Discard last null string, if any

	for (var j=0; j<statusLines.length; j++) {
	var matches = statusLines[j].match(/IMPORT_OK ([0-9]+) (\w+)/);
	if (matches && (matches.length > 2)) {
	if (typeof (keyList[matches[2]]) != "undefined") {
	keyList[matches[2]] \|= new Number(matches[1]);
	}
	else
	keyList[matches[2]] = new Number(matches[1]);

	EC.DEBUG_LOG("enigmail.js: Enigmail.importKey: imported "+matches[2]+":"+matches[1]+"\n");
	}
	}

	for (j in keyList) {
	importedKeysObj.value += j+":"+keyList[j]+";";
	}
	}

	return exitCodeObj.value;
	},

	createMessageURI: function (originalUrl, contentType, contentCharset, contentData, persist) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.createMessageURI: "+originalUrl+
	", "+contentType+", "+contentCharset+"\n");

	var messageId = "msg" + Math.floor(Math.random()*1.0e9);

	this._messageIdList[messageId] = {originalUrl:originalUrl,
	contentType:contentType,
	contentCharset:contentCharset,
	contentData:contentData,
	persist:persist};

	return "enigmail:message/"+messageId;
	},

	deleteMessageURI: function (uri) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.deleteMessageURI: "+uri+"\n");

	var messageId = ExtractMessageId(uri);

	if (!messageId)
	return false;

	return (delete this._messageIdList[messageId]);
	},

	invalidateUserIdList: function () {
	// clean the userIdList to force reloading the list at next usage
	EC.DEBUG_LOG("enigmail.js: Enigmail.invalidateUserIdList\n");
	this.userIdList = null;
	this.secretKeyList = null;
	},

	// returns the output of --with-colons --list[-secret]-keys
	getUserIdList: function (secretOnly, refresh, exitCodeObj, statusFlagsObj, errorMsgObj) {

	if (refresh \|\|
	(secretOnly && this.secretKeyList == null) \|\|
	((! secretOnly) && this.userIdList == null)) {
	var args = Ec.getAgentArgs(true);

	if (secretOnly) {
	args=args.concat(["--with-fingerprint", "--fixed-list-mode", "--with-colons", "--list-secret-keys"]);
	}
	else {
	args=args.concat(["--with-fingerprint", "--fixed-list-mode", "--with-colons", "--list-keys"]);
	}

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.getUserIdList: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return "";
	}

	statusFlagsObj.value = 0;

	var statusMsgObj = {};
	var cmdErrorMsgObj = {};

	var listText = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if (exitCodeObj.value != 0) {
	errorMsgObj.value = EC.getString("badCommand");
	if (cmdErrorMsgObj.value) {
	errorMsgObj.value += "\n" + EC.printCmdLine(this.agentPath, args);
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}

	return "";
	}

	listText=listText.replace(/(\r\n\|\r)/g, "\n");
	if (secretOnly) {
	this.secretKeyList = listText;
	return listText;
	}
	this.userIdList = listText;
	}
	else {
	exitCodeObj.value=0;
	statusFlagsObj.value=0;
	errorMsgObj.value="";
	}

	if (secretOnly) {
	return this.secretKeyList;
	}

	return this.userIdList;
	},

	// returns the output of --with-colons --list-sig
	getKeySig: function (keyId, exitCodeObj, errorMsgObj) {

	var keyIdList = keyId.split(" ");
	var args = Ec.getAgentArgs(true);
	args=args.concat(["--with-fingerprint", "--fixed-list-mode", "--with-colons", "--list-sig"]);
	args=args.concat(keyIdList);

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.getKeySig: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return "";
	}

	var statusFlagsObj = {};
	var statusMsgObj = {};
	var cmdErrorMsgObj = {};

	var listText = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if (exitCodeObj.value != 0) {
	errorMsgObj.value = EC.getString("badCommand");
	if (cmdErrorMsgObj.value) {
	errorMsgObj.value += "\n" + EC.printCmdLine(this.agentPath, args);
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}

	return "";
	}
	return listText;
	},

	/**
	* Return details of given keys.
	*
	* @param String keyId List of keys with 0x, separated by spaces.
	* @param Boolean uidOnly false:
	* return all key details (full output of GnuPG)
	* true:
	* return only the user ID fields. Only UIDs with highest trust
	* level are returned.
	* @param Boolean withUserAttributes true: if uidOnly include "uat:jpegPhoto" (but not subkey IDs)
	*
	* @return String all key details or list of user IDs separated by \n.
	*/
	getKeyDetails: function (keyId, uidOnly, withUserAttributes)
	{
	var args = Ec.getAgentArgs(true);
	var keyIdList = keyId.split(" ");
	args=args.concat([ "--fixed-list-mode", "--with-colons", "--list-keys"]);
	args=args.concat(keyIdList);

	var statusMsgObj = {};
	var cmdErrorMsgObj = {};
	var statusFlagsObj = {};
	var exitCodeObj = {};

	var listText = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);
	if (exitCodeObj.value != 0) {
	return "";
	}
	listText=listText.replace(/(\r\n\|\r)/g, "\n");

	const TRUSTLEVELS_SORTED = EnigmailFuncs.trustlevelsSorted();
	var maxTrustLevel = -1;

	if (uidOnly) {
	var userList="";
	var hideInvalidUid=true;
	var lineArr=listText.split(/\n/);
	for (var i=0; i<lineArr.length; i++) {
	// process lines such as:
	// tru::1:1395895453:1442881280:3:1:5
	// pub:f:4096:1:C1B875ED336XX959:2299509307:1546189300::f:::scaESCA:
	// fpr:::::::::102A1C8CC524A966849C33D7C8B157EA336XX959:
	// uid:f::::1388511201::67D5B96DC564598D4D4D9E0E89F5B83C9931A154::Joe Fox <joe@fox.com>:
	// sig:::1:C8B157EA336XX959:2299509307::::Joe Fox <joe@fox.com>:13x:::::2:
	// sub:e:2048:1:B214734F0F5C7041:1316219469:1199912694:::::e:
	// sub:f:2048:1:70E7A471DABE08B0:1316221524:1546189300:::::s:
	var lineTokens = lineArr[i].split(/:/);
	switch (lineTokens[0]) {
	case "pub":
	if (EnigmailFuncs.isInvalid(lineTokens[1])) {
	// pub key not valid (anymore)-> display all UID's
	hideInvalidUid = false;
	}
	break;
	case "uid":
	if (uidOnly && hideInvalidUid) {
	var thisTrust = TRUSTLEVELS_SORTED.indexOf(lineTokens[1]);
	if (thisTrust > maxTrustLevel) {
	userList = lineTokens[9] + "\n";
	maxTrustLevel = thisTrust;
	}
	else if (thisTrust == maxTrustLevel) {
	userList += lineTokens[9] + "\n";
	}
	// else do not add uid
	}
	else if (!EnigmailFuncs.isInvalid(lineTokens[1]) \|\| !hideInvalidUid) {
	// UID valid OR key not valid, but invalid keys allowed
	userList += lineTokens[9] + "\n";
	}
	break;
	case "uat":
	if (withUserAttributes) {
	if (!EnigmailFuncs.isInvalid(lineTokens[1]) \|\| !hideInvalidUid) {
	// IF UID valid OR key not valid and invalid keys allowed
	userList += "uat:jpegPhoto:" + lineTokens[4] + "\n";
	}
	}
	break;
	}
	}
	return userList.replace(/^\n+/, "").replace(/\n+$/, "").replace(/\n\n+/g, "\n");
	}

	return listText;
	},


	/**
	* Return string with all colon-separated data of key list entry of given key.
	* - key may be pub or sub key.
	*
	* @param String keyId of 8 or 16 chars key with optionally leading 0x
	* @return String entry of first found user IDs with keyId or null if none
	*/
	getKeyListEntryOfKey: function (keyId)
	{
	//EC.DEBUG_LOG("enigmail.js: Enigmail.getKeyListEntryOfKey() keyId='"+ keyId +"'\n");
	keyId = keyId.replace(/^0x/, "");

	let statusFlags = {};
	let errorMsg = {};
	let exitCodeObj = {};
	let listText = this.getUserIdList(false, false, exitCodeObj, statusFlags, errorMsg)
	//EC.DEBUG_LOG("enigmail.js: Enigmail.getKeyListEntryOfKey(): listText "+ listText +"\n");

	// listeText contains lines such as:
	// tru::0:1407688184:1424970931:3:1:5
	// pub:f:1024:17:D581C6F8EBB80E50:1107251639:::-:::scESC:
	// fpr:::::::::492A198AEA5EBE5574A1CE00D581C6F8EBB80E50:
	// uid:f::::1107251639::2D505D1F6E744365B3B35FF11F32A19779E3A417::Giosue Vitaglione <gvi@whitestein.com>:
	// sub:f:2048:16:2223D7E0301A66C6:1107251647::::::e:

	// search for key or subkey
	let regexKey = new RegExp("^(pub\|sub):[^:]:[^:]:[^:]:[A-Fa-f0-9]" + keyId + ":", "m");
	let foundPos = listText.search(regexKey);
	//EC.DEBUG_LOG("enigmail.js: Enigmail.getKeyListEntryOfKey(): foundPos="+ foundPos +"\n");
	if (foundPos < 0) {
	return null;
	}

	// find area of key entries in key list
	// note: if subkey matches, key entry starts before
	let regexPub = RegExp("^pub:", "ym");
	let startPos = -1;
	if (listText[foundPos] == "p") { // ^pub:
	// KEY matches
	startPos = foundPos;
	}
	else {
	// SUBKEY matches
	// search for pub entry right before sub entry
	startPos = 0;
	let match = regexPub.exec(listText.substr(0, foundPos));
	while (match && match.index < foundPos) {
	startPos = match.index;
	match = regexPub.exec(listText)
	}
	}
	// find end of entry (next pub entry or end):
	let endPos = -1;
	let match = regexPub.exec(listText.substr(startPos+1));
	if (match && match.index) {
	endPos = startPos+1 + match.index;
	}
	else {
	endPos = listText.length;
	}
	return listText.substring(startPos, endPos);
	},


	/**
	* Return first found userId of given key.
	* - key may be pub or sub key.
	* @param String keyId key with leading 0x
	* @return String First found of user IDs or null if none
	*/
	getFirstUserIdOfKey: function (keyId)
	{
	EC.DEBUG_LOG("enigmail.js: Enigmail.getFirstUserIdOfKey() keyId='"+ keyId +"'\n");

	var entry = this.getKeyListEntryOfKey(keyId);
	if (entry == null) {
	return null;
	}

	var lineArr = entry.split(/\n/);
	//EC.DEBUG_LOG("enigmail.js: Enigmail.getFirstUserIdOfKey(): lineArr: "+ lineArr +"\n");
	for (i=0; i<lineArr.length; ++i) {
	var lineTokens = lineArr[i].split(/:/);
	switch (lineTokens[0]) {
	case "uid":
	{
	let userId = lineTokens[9];
	return userId;
	}
	break;
	}
	}
	return null;
	},


	/**
	* return key ID of public key for subkey
	*
	* @param String keyId key with or without leading 0x
	* @return String public key ID, or null if key not found
	*/
	getPubKeyIdForSubkey: function (keyId) {
	var entry = this.getKeyListEntryOfKey(keyId);
	if (entry == null) {
	return null;
	}

	var lineArr = entry.split(/\n/);
	for (i=0; i<lineArr.length; ++i) {
	var lineTokens = lineArr[i].split(/:/);
	switch (lineTokens[0]) {
	case "pub":
	{
	let keyId = lineTokens[4];
	return keyId;
	}
	break;
	}
	}
	return null;
	},

	// returns the output of --with-colons --list-config
	getGnupgConfig: function (exitCodeObj, errorMsgObj)
	{
	var args = Ec.getAgentArgs(true);

	args=args.concat(["--fixed-list-mode", "--with-colons", "--list-config"]);

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.getGnupgConfig: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return "";
	}

	var statusMsgObj = {};
	var cmdErrorMsgObj = {};
	var statusFlagsObj = {};

	var listText = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if (exitCodeObj.value != 0) {
	errorMsgObj.value = EC.getString("badCommand");
	if (cmdErrorMsgObj.value) {
	errorMsgObj.value += "\n" + EC.printCmdLine(this.agentPath, args);
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}

	return "";
	}

	listText=listText.replace(/(\r\n\|\r)/g, "\n");
	return listText;
	},


	encryptAttachment: function (parent, fromMailAddr, toMailAddr, bccMailAddr, sendFlags, inFile, outFile,
	exitCodeObj, statusFlagsObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.encryptAttachment infileName="+inFile.path+"\n");

	if (!this.initialized) {
	EC.ERROR_LOG("enigmail.js: Enigmail.encryptAttachment: not yet initialized\n");
	errorMsgObj.value = EC.getString("notInit");
	return "";
	}

	statusFlagsObj.value = 0;
	sendFlags \|= nsIEnigmail.SEND_ATTACHMENT;

	var asciiArmor = false;
	try {
	asciiArmor = this.prefBranch.getBoolPref("inlineAttachAsciiArmor");
	} catch (ex) {}
	var asciiFlags = (asciiArmor ? ENC_TYPE_ATTACH_ASCII : ENC_TYPE_ATTACH_BINARY);

	var args = Ec.getEncryptCommand(fromMailAddr, toMailAddr, bccMailAddr, "", sendFlags, asciiFlags, errorMsgObj);

	if (! args)
	return null;

	var passphrase = null;
	var signMessage = (sendFlags & nsIEnigmail.SEND_SIGNED);

	if (signMessage ) {
	args = args.concat(Ec.passwdCommand());

	var passwdObj = {};
	var useAgentObj = {};

	if (!Ec.getPassphrase(parent, passwdObj, useAgentObj, 0)) {
	EC.ERROR_LOG("enigmail.js: Enigmail.encryptAttachment: Error - no passphrase supplied\n");

	statusFlagsObj.value \|= nsIEnigmail.MISSING_PASSPHRASE;
	return null;
	}

	if (!useAgentObj.value) passphrase = passwdObj.value;
	}

	var inFilePath = Ec.getEscapedFilename(getFilePath(inFile.QueryInterface(Ci.nsIFile)));
	var outFilePath = Ec.getEscapedFilename(getFilePath(outFile.QueryInterface(Ci.nsIFile)));

	args = args.concat(["--yes", "-o", outFilePath, inFilePath ]);

	var statusMsgObj = {};
	var cmdErrorMsgObj = {};

	var msg = this.execCmd(this.agentPath, args, passphrase, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, cmdErrorMsgObj);

	if (exitCodeObj.value != 0) {

	if (cmdErrorMsgObj.value) {
	errorMsgObj.value = EC.printCmdLine(this.agentPath, args);
	errorMsgObj.value += "\n" + cmdErrorMsgObj.value;
	}
	else {
	errorMsgObj.value = "An unknown error has occurred";
	}

	return "";
	}

	return msg;
	},


	verifyAttachment: function (parent, verifyFile, sigFile,
	statusFlagsObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.verifyAttachment:\n");

	var exitCode = -1;
	var verifyFilePath = Ec.getEscapedFilename(getFilePath(verifyFile.QueryInterface(Ci.nsIFile)));
	var sigFilePath = Ec.getEscapedFilename(getFilePath(sigFile.QueryInterface(Ci.nsIFile)));

	var args = Ec.getAgentArgs(true);
	args.push("--verify");
	args.push(sigFilePath);
	args.push(verifyFilePath);

	var listener = Ec.newSimpleListener();

	var proc = Ec.execStart(this.agentPath, args, false, parent,
	listener, statusFlagsObj);

	if (!proc) {
	return -1;
	}
	proc.wait();

	var retObj = {};

	Ec.decryptMessageEnd (listener.stderrData, listener.exitCode, 1, true, true, nsIEnigmail.UI_INTERACTIVE, retObj);

	if (listener.exitCode == 0) {
	var detailArr = retObj.sigDetails.split(/ /);
	var dateTime = Ec.getDateTime(detailArr[2], true, true);
	var msg1 = retObj.errorMsg.split(/\n/)[0];

	var msg2 = EC.getString("keyAndSigDate", ["0x"+retObj.keyId.substr(-8, 8), dateTime ]);
	errorMsgObj.value = msg1 + "\n" + msg2;
	}
	else {
	errorMsgObj.value = retObj.errorMsg;
	}

	return listener.exitCode;
	},


	decryptAttachment: function (parent, outFile, displayName, byteData,
	exitCodeObj, statusFlagsObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.decryptAttachment: parent="+parent+", outFileName="+outFile.path+"\n");

	var attachmentHead = byteData.substr(0,200);
	if (attachmentHead.match(/\-\-\-\-\-BEGIN PGP \w+ KEY BLOCK\-\-\-\-\-/)) {
	// attachment appears to be a PGP key file

	if (Ec.confirmDlg(parent, EC.getString("attachmentPgpKey", [ displayName ]),
	EC.getString("keyMan.button.import"), EC.getString("dlg.button.view"))) {
	exitCodeObj.value = this.importKey(parent, 0, byteData, "", errorMsgObj);
	statusFlagsObj.value = gStatusFlags.IMPORTED;
	}
	else {
	exitCodeObj.value = 0;
	statusFlagsObj.value = nsIEnigmail.DISPLAY_MESSAGE;
	}
	return true;
	}

	var outFileName = Ec.getEscapedFilename(getFilePath(outFile.QueryInterface(Ci.nsIFile), NS_WRONLY));

	var args = Ec.getAgentArgs(true);
	args = args.concat(["-o", outFileName, "--yes"]);
	args = args.concat(Ec.passwdCommand());
	args.push("-d");


	statusFlagsObj.value = 0;

	var passphrase = null;
	var passwdObj = {};
	var useAgentObj = {};

	if (!Ec.getPassphrase(parent, passwdObj, useAgentObj, 0)) {
	EC.ERROR_LOG("enigmail.js: Enigmail.decryptAttachment: Error - no passphrase supplied\n");

	statusFlagsObj.value \|= nsIEnigmail.MISSING_PASSPHRASE;
	return null;
	}

	passphrase = passwdObj.value;

	var listener = Ec.newSimpleListener(
	function _stdin(pipe) {
	if (Ec.requirePassword()) {
	pipe.write(passphrase+"\n");
	}
	pipe.write(byteData);
	pipe.close();
	});


	var proc = Ec.execStart(this.agentPath, args, false, parent,
	listener, statusFlagsObj);

	if (!proc) {
	return false;
	}

	// Wait for child STDOUT to close
	proc.wait();

	var statusMsgObj = {};
	var cmdLineObj = {};

	exitCodeObj.value = Ec.execEnd(listener, statusFlagsObj, statusMsgObj, cmdLineObj, errorMsgObj);

	return true;

	},

	getCardStatus: function(exitCodeObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.getCardStatus\n");
	var args = Ec.getAgentArgs(false);

	args = args.concat(["--status-fd", "2", "--fixed-list-mode", "--with-colons", "--card-status"]);
	var statusMsgObj = {};
	var statusFlagsObj = {};

	var outputTxt = this.execCmd(this.agentPath, args, null, "",
	exitCodeObj, statusFlagsObj, statusMsgObj, errorMsgObj);

	if ((exitCodeObj.value == 0) && !outputTxt) {
	exitCodeObj.value = -1;
	return "";
	}

	return outputTxt;
	},

	showKeyPhoto: function(keyId, photoNumber, exitCodeObj, errorMsgObj) {
	EC.DEBUG_LOG("enigmail.js: Enigmail.showKeyPhoto, keyId="+keyId+" photoNumber="+photoNumber+"\n");

	var args = Ec.getAgentArgs();
	args = args.concat(["--no-secmem-warning", "--no-verbose", "--no-auto-check-trustdb", "--batch", "--no-tty", "--status-fd", "1", "--attribute-fd", "2" ]);
	args = args.concat(["--fixed-list-mode", "--list-keys", keyId]);

	var photoDataObj = {};

	var outputTxt = this.simpleExecCmd(this.agentPath, args, exitCodeObj, photoDataObj);

	if ((exitCodeObj.value == 0) && !outputTxt) {
	exitCodeObj.value = -1;
	return "";
	}

	if (EC.isDosLike()) {
	// workaround for error in gpg
	photoDataObj.value=photoDataObj.value.replace(/\r\n/g, "\n");
	}

	// [GNUPG:] ATTRIBUTE A053069284158FC1E6770BDB57C9EB602B0717E2 2985
	var foundPicture = -1;
	var skipData = 0;
	var imgSize = -1;
	var statusLines = outputTxt.split(/[\n\r+]/);

	for (var i=0; i < statusLines.length; i++) {
	var matches = statusLines[i].match(/\[GNUPG:\] ATTRIBUTE ([A-F\d]+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+) (\d+)/);
	if (matches && matches[3]=="1") {
	// attribute is an image
	++foundPicture;
	if (foundPicture == photoNumber) {
	imgSize = Number(matches[2]);
	break;
	}
	else {
	skipData += Number(matches[2]);
	}
	}
	}

	if (foundPicture>=0 && foundPicture == photoNumber) {
	var pictureData = photoDataObj.value.substr(16+skipData, imgSize);
	if (! pictureData.length)
	return "";
	try {
	var flags = NS_WRONLY \| NS_CREATE_FILE \| NS_TRUNCATE;

	var ds = Cc[DIR_SERV_CONTRACTID].getService();
	var dsprops = ds.QueryInterface(Ci.nsIProperties);
	var picFile = dsprops.get("TmpD", Ci.nsIFile);

	picFile.append(keyId+".jpg");
	picFile.createUnique(picFile.NORMAL_FILE_TYPE, DEFAULT_FILE_PERMS);

	var fileStream = Cc[NS_LOCALFILEOUTPUTSTREAM_CONTRACTID].createInstance(Ci.nsIFileOutputStream);
	fileStream.init(picFile, flags, DEFAULT_FILE_PERMS, 0);
	if (fileStream.write(pictureData, pictureData.length) != pictureData.length)
	throw Components.results.NS_ERROR_FAILURE;

	fileStream.flush();
	fileStream.close();
	return picFile.path;

	}
	catch (ex) {
	exitCodeObj.value = -1;
	return "";
	}
	}
	return "";
	},


	// Methods for handling Per-Recipient Rules

	getRulesFile: function () {
	EC.DEBUG_LOG("enigmail.js: getRulesFile\n");
	var rulesFile = EC.getProfileDirectory();
	rulesFile.append("pgprules.xml");
	return rulesFile;
	},

	loadRulesFile: function () {
	EC.DEBUG_LOG("enigmail.js: loadRulesFile\n");
	var flags = NS_RDONLY;
	var rulesFile = this.getRulesFile();
	if (rulesFile.exists()) {
	var fileContents = readFile(rulesFile);

	if (fileContents.length==0 \|\| fileContents.search(/^\s*$/)==0) {
	return false;
	}

	var domParser=Cc[NS_DOMPARSER_CONTRACTID].createInstance(Ci.nsIDOMParser);
	this.rulesList = domParser.parseFromString(fileContents, "text/xml");

	return true;
	}
	return false;
	},

	saveRulesFile: function () {
	EC.DEBUG_LOG("enigmail.js: saveRulesFile\n");

	var flags = NS_WRONLY \| NS_CREATE_FILE \| NS_TRUNCATE;
	var domSerializer=Cc[NS_DOMSERIALIZER_CONTRACTID].createInstance(Ci.nsIDOMSerializer);
	var rulesFile = this.getRulesFile();
	if (rulesFile) {
	if (this.rulesList) {
	// the rule list is not empty -> write into file
	return EnigmailFuncs.writeFileContents(rulesFile.path,
	domSerializer.serializeToString(this.rulesList.firstChild),
	DEFAULT_FILE_PERMS);
	}
	else {
	// empty rule list -> delete rules file
	try {
	rulesFile.remove(false);
	}
	catch (ex) {}
	return true;
	}
	}
	else
	return false;
	},

	getRulesData: function (rulesListObj) {
	EC.DEBUG_LOG("enigmail.js: getRulesData\n");
	var ret=true;
	if (! this.rulesList) {
	ret=this.loadRulesFile();
	}
	if (this.rulesList) {
	rulesListObj.value = this.rulesList;
	return ret;
	}

	rulesListObj.value = null;
	return false;
	},

	addRule: function (appendToEnd, toAddress, keyList, sign, encrypt, pgpMime, flags) {
	EC.DEBUG_LOG("enigmail.js: addRule\n");
	if (! this.rulesList) {
	var domParser=Cc[NS_DOMPARSER_CONTRACTID].createInstance(Ci.nsIDOMParser);
	this.rulesList = domParser.parseFromString("<pgpRuleList/>", "text/xml");
	}
	var negate = (flags & 1);
	var rule=this.rulesList.createElement("pgpRule");
	rule.setAttribute("email", toAddress);
	rule.setAttribute("keyId", keyList);
	rule.setAttribute("sign", sign);
	rule.setAttribute("encrypt", encrypt);
	rule.setAttribute("pgpMime", pgpMime);
	rule.setAttribute("negateRule", flags);
	var origFirstChild = this.rulesList.firstChild.firstChild;

	if (origFirstChild && (! appendToEnd)) {
	this.rulesList.firstChild.insertBefore(rule, origFirstChild);
	this.rulesList.firstChild.insertBefore(this.rulesList.createTextNode(EC.isDosLike() ? "\r\n" : "\n"), origFirstChild);
	}
	else {
	this.rulesList.firstChild.appendChild(rule);
	this.rulesList.firstChild.appendChild(this.rulesList.createTextNode(EC.isDosLike() ? "\r\n" : "\n"));
	}

	},

	clearRules: function () {
	this.rulesList = null;
	}

	}; // Enigmail.protoypte


	function EnigCmdLineHandler() {}

	EnigCmdLineHandler.prototype = {
	classDescription: "Enigmail Key Management CommandLine Service",
	classID: NS_ENIGCLINE_SERVICE_CID,
	contractID: NS_CLINE_SERVICE_CONTRACTID,
	_xpcom_categories: [{
	category: "command-line-handler",
	entry: "m-cline-enigmail",
	service: false
	}],
	QueryInterface: XPCOMUtils.generateQI([nsICommandLineHandler, nsIFactory, nsISupports]),

	// nsICommandLineHandler
	handle: function(cmdLine) {
	if (cmdLine.handleFlag("pgpkeyman", false)) {
	cmdLine.preventDefault = true; // do not open main app window

	var wwatch = Cc["@mozilla.org/embedcomp/window-watcher;1"]
	.getService(Ci.nsIWindowWatcher);
	wwatch.openWindow(null, "chrome://enigmail/content/enigmailKeyManager.xul", "_blank",
	"chrome,dialog=no,all", cmdLine);
	}
	},

	helpInfo: " -pgpkeyman Open the OpenPGP key management.\n",

	lockFactory: function (lock) {}
	};

	function getEnigmailString(aStr) {
	try {
	var strBundleService = Cc["@mozilla.org/intl/stringbundle;1"].getService();
	strBundleService = strBundleService.QueryInterface(Ci.nsIStringBundleService);
	var enigStringBundle = strBundleService.createBundle("chrome://enigmail/locale/enigmail.properties");
	return enigStringBundle.GetStringFromName(aStr);
	}
	catch (ex) {
	return aStr;
	}
	}

	/********************************************************************************
	Filter actions for decrypting messages permanently
	********************************************************************************/

	/***
	* dispatchMessages
	*
	* Because thunderbird throws all messages at once at us thus we have to rate limit the dispatching
	* of the message processing. Because there is only a negligible performance gain when dispatching
	* several message at once we serialize to not overwhelm low power devices.
	*
	* The function is implemented such that the 1st call (requireSync == true) is a synchronous function,
	* while any other call is asynchronous. This is required to make the filters work correctly in case
	* there are other filters that work on the message. (see bug 374).
	*
	* Parameters
	* aMsgHdrs: Array of nsIMsgDBHdr
	* targetFolder: String; target folder URI
	* move: Boolean: type of action; true = "move" / false = "copy"
	* requireSync: Boolean: true = require function to behave synchronously
	* false = async function (no useful return value)
	*
	**/

	function dispatchMessages(aMsgHdrs, targetFolder, move, requireSync) {
	var inspector = Cc["@mozilla.org/jsinspector;1"].getService(Ci.nsIJSInspector);

	var promise = EnigmailDecryptPermanently(aMsgHdrs[0], targetFolder, move);
	var done = false;

	var processNext = function (data) {
	aMsgHdrs.splice(0,1);
	if (aMsgHdrs.length > 0) {
	dispatchMessages(aMsgHdrs, targetFolder, move, false);
	}
	else {
	// last message was finished processing
	done = true;
	EC.DEBUG_LOG("enigmail.js: dispatchMessage: exit nested loop\n");
	inspector.exitNestedEventLoop();
	}
	};

	promise.then(processNext);

	promise.catch(function(err) {
	EC.ERROR_LOG("enigmail.js: dispatchMessage: caught error: "+err+"\n");
	processNext(null);
	});

	if (requireSync && ! done) {
	// wait here until all messages processed, such that the function returns
	// synchronously
	EC.DEBUG_LOG("enigmail.js: dispatchMessage: enter nested loop\n");
	inspector.enterNestedEventLoop({value : 0});
	}
	}

	/**
	* filter action for creating a decrypted version of the mail and
	* deleting the original mail at the same time
	*/

	var filterActionMoveDecrypt = {
	id: "enigmail@enigmail.net#filterActionMoveDecrypt",
	name: EC.getString("filter.decryptMove.label"),
	value: "movemessage",
	apply: function (aMsgHdrs, aActionValue, aListener, aType, aMsgWindow) {

	EC.DEBUG_LOG("enigmail.js: filterActionMoveDecrypt: Move to: " + aActionValue + "\n");

	var msgHdrs = [];

	for(var i=0; i < aMsgHdrs.length; i++) {
	msgHdrs.push(aMsgHdrs.queryElementAt(i, Ci.nsIMsgDBHdr));
	}

	dispatchMessages(msgHdrs, aActionValue, true, true);

	return;
	},

	isValidForType: function (type, scope) {
	return true;
	},

	validateActionValue: function (value, folder, type) {

	if (Ec == null) {
	Enigmail();
	Ec.getService();
	}

	Ec.alert(null, EC.getString("filter.decryptMove.warnExperimental"));

	if (value == "") {
	return EC.getString("filter.folderRequired");
	}

	return null;
	},

	allowDuplicates: false,
	isAsync: false,
	needsBody: true
	};

	/**
	* filter action for creating a decrypted copy of the mail, leaving the original
	* message untouched
	*/
	var filterActionCopyDecrypt = {
	id: "enigmail@enigmail.net#filterActionCopyDecrypt",
	name: EC.getString("filter.decryptCopy.label"),
	value: "copymessage",
	apply: function (aMsgHdrs, aActionValue, aListener, aType, aMsgWindow) {
	if (Ec == null) {
	Enigmail();
	Ec.getService();
	}

	Ec.DEBUG_LOG("enigmail.js: filterActionCopyDecrypt: Copy to: " + aActionValue + "\n");

	var msgHdrs = [];

	for(var i=0; i < aMsgHdrs.length; i++) {
	msgHdrs.push(aMsgHdrs.queryElementAt(i, Ci.nsIMsgDBHdr));
	}

	dispatchMessages(msgHdrs, aActionValue, false, true);
	return;
	},

	isValidForType: function (type, scope) {
	return true;
	},

	validateActionValue: function (value, folder, type) {
	if( value == "") {
	return EC.getString("filter.folderRequired");
	}

	return null;
	},

	allowDuplicates: false,
	isAsync: false,
	needsBody: true
	};

	///////////////////////////////////////////////////////////////////////////////

	var NSGetFactory = XPCOMUtils.generateNSGetFactory([Enigmail, EnigmailProtocolHandler, EnigCmdLineHandler]);

	var filterService = Cc["@mozilla.org/messenger/services/filters;1"].getService(Ci.nsIMsgFilterService);
	filterService.addCustomAction(filterActionMoveDecrypt);
	filterService.addCustomAction(filterActionCopyDecrypt);

	dump("enigmail.js: Registered components\n");

File Metadata

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