enigmailCommon.js
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enigmailCommon.js
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	// enigmailCommon.js: shared JS functions for Enigmail

	// This Enigmail version and compatible Enigmime version
	var gEnigmailVersion = "0.66.0.0";
	var gEnigmimeVersion = "0.66.0.0";

	// Maximum size of message directly processed by Enigmail
	const ENIG_MSG_BUFFER_SIZE = 32000;
	const ENIG_MSG_HEADER_SIZE = 16000;

	const ENIG_PROCESSINFO_CONTRACTID = "@mozilla.org/xpcom/process-info;1";
	const ENIG_PIPECONSOLE_CONTRACTID = "@mozilla.org/process/pipe-console;1";
	const ENIG_IPCBUFFER_CONTRACTID = "@mozilla.org/process/ipc-buffer;1";
	const ENIG_PIPEFILTERLISTENER_CONTRACTID = "@mozilla.org/process/pipe-filter-listener;1";
	const ENIG_ENIGMAIL_CONTRACTID = "@mozdev.org/enigmail/enigmail;1";
	const ENIG_ENIGMIMELISTENER_CONTRACTID = "@mozilla.org/enigmail/mime-listener;1";
	const ENIG_ENIGMIMESERVICE_CONTRACTID = "@mozdev.org/enigmail/enigmimeservice;1";

	const ENIG_STREAMCONVERTERSERVICE_CID_STR =
	"{892FFEB0-3F80-11d3-A16C-0050041CAF44}";

	const ENIG_ISCRIPTABLEUNICODECONVERTER_CONTRACTID = "@mozilla.org/intl/scriptableunicodeconverter";

	const ENIG_IOSERVICE_CONTRACTID = "@mozilla.org/network/io-service;1";

	const ENIGMAIL_PREFS_ROOT = "extensions.enigmail.";

	// Interfaces
	const nsIEnigmail = Components.interfaces.nsIEnigmail;

	// Encryption flags
	if (nsIEnigmail) {
	const ENIG_SIGN = nsIEnigmail.SEND_SIGNED;
	const ENIG_ENCRYPT = nsIEnigmail.SEND_ENCRYPTED;
	const ENIG_ENCRYPT_OR_SIGN = ENIG_ENCRYPT \| ENIG_SIGN;
	}

	// UsePGPMimeOption values
	const PGP_MIME_NEVER = 0;
	const PGP_MIME_POSSIBLE = 1;
	const PGP_MIME_ALWAYS = 2;

	var gUsePGPMimeOptionList = ["usePGPMimeNever", "usePGPMimePossible",
	"usePGPMimeAlways"];

	var gDefaultEncryptionOptionList = ["defaultEncryptionNone",
	"defaultEncryptionOnly",
	"defaultEncryptionSign"];

	const ENIG_BUTTON_POS_0 = 1;
	const ENIG_BUTTON_POS_1 = 1 << 8;
	const ENIG_BUTTON_POS_2 = 1 << 16;
	const ENIG_BUTTON_TITLE_IS_STRING = 127;

	const ENIG_THREE_BUTTON_STRINGS = (ENIG_BUTTON_TITLE_IS_STRING * ENIG_BUTTON_POS_0) +
	(ENIG_BUTTON_TITLE_IS_STRING * ENIG_BUTTON_POS_1) +
	(ENIG_BUTTON_TITLE_IS_STRING * ENIG_BUTTON_POS_2);


	var gEnigmailPrefDefaults = {"configuredVersion":"",
	"logDirectory":"",
	"initAlertCount":2,
	"composeHtmlAlertCount":3,
	"agentPath":"",
	"autoCrypto":false,
	"useDefaultComment":false,
	"userIdValue":"",
	"userIdFromAddr":false,
	"noPassphrase":false,
	"usePGPMimeOption":PGP_MIME_POSSIBLE,
	"mimeHashAlgorithm":1,
	"defaultEncryptionOption":1,
	"defaultSignMsg":false,
	"defaultSignNewsMsg":false,
	"alwaysTrustSend":true,
	"encryptToSelf":true,
	"confirmBeforeSend":false,
	"doubleDashSeparator":false,
	"maxIdleMinutes":5,
	"keyserver":"www.keyserver.net",
	"autoDecrypt":true,
	"captureWebMail":false,
	"useMimeExperimental":false,
	"disableSMIMEui":true,
	"parseAllHeaders":true,
	"show_headers":1
	};

	var gLogLevel = 3; // Output only errors/warnings by default
	var gDebugLog;

	var gEnigPrefSvc, gEnigPrefRoot, gPrefEnigmail;
	try {
	gEnigPrefSvc = Components.classes["@mozilla.org/preferences-service;1"]
	.getService(Components.interfaces.nsIPrefService);

	gEnigPrefRoot = gEnigPrefSvc.getBranch(null);
	gPrefEnigmail = gEnigPrefSvc.getBranch(ENIGMAIL_PREFS_ROOT);

	if (EnigGetPref("logDirectory"))
	gLogLevel = 5;

	} catch (ex) {
	ERROR_LOG("enigmailCommon.js: Error in instantiating PrefService\n");
	}

	var gPromptService;

	// Initializes enigmailCommon
	function EnigInitCommon(id) {
	DEBUG_LOG("enigmailCommon.js: EnigInitCommon: id="+id+"\n");

	gPromptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].getService(Components.interfaces.nsIPromptService);

	// Do not instantiate ProcessInfo for Prefs
	if (id && (id.indexOf("pref-") == 0))
	return;

	try {
	var processInfo = Components.classes[ENIG_PROCESSINFO_CONTRACTID].getService(Components.interfaces.nsIProcessInfo);

	var nspr_log_modules = processInfo.getEnv("NSPR_LOG_MODULES");

	var matches = nspr_log_modules.match(/enigmailCommon:(\d+)/);

	if (matches && (matches.length > 1)) {
	gLogLevel = matches[1];
	WARNING_LOG("enigmailCommon.js: gLogLevel="+gLogLevel+"\n");
	}

	} catch (ex) {
	dump("enigmailCommon.js: Error in instantiating ProcessInfo\n");
	}

	}

	var gEnigmailSvc;

	function GetEnigmailSvc() {
	// Lazy initialization of enigmail JS component (for efficiency)

	if (gEnigmailSvc) {
	return gEnigmailSvc.initialized ? gEnigmailSvc : null;
	}

	try {
	gEnigmailSvc = Components.classes[ENIG_ENIGMAIL_CONTRACTID].createInstance(Components.interfaces.nsIEnigmail);

	} catch (ex) {
	ERROR_LOG("enigmailCommon.js: Error in instantiating EnigmailService\n");
	return null;
	}

	DEBUG_LOG("enigmailCommon.js: gEnigmailSvc = "+gEnigmailSvc+"\n");

	if (!gEnigmailSvc.initialized) {
	// Initialize enigmail

	var firstInitialization = !gEnigmailSvc.initializationAttempted;

	try {
	// Initialize enigmail
	gEnigmailSvc.initialize(window, gEnigmailVersion, gPrefEnigmail);

	try {
	// Reset alert count to default value
	gPrefEnigmail.clearUserPref("initAlertCount");
	} catch(ex) {
	}

	} catch (ex) {

	if (firstInitialization) {
	// Display initialization error alert
	var errMsg = gEnigmailSvc.initializationError ? gEnigmailSvc.initializationError : "Error in initializing Enigmail service";

	errMsg += "\n\nTo avoid this alert, either fix the problem or uninstall Enigmail using the Edit->Preferences->Privacy&Security->Enigmail menu"

	EnigAlertCount("initAlertCount", "Enigmail: "+errMsg);
	}

	return null;
	}

	var configuredVersion = EnigGetPref("configuredVersion");

	DEBUG_LOG("enigmailCommon.js: GetEnigmailSvc: "+configuredVersion+"\n");

	if (gEnigmailSvc.initialized && (gEnigmailVersion != configuredVersion)) {
	EnigConfigure();
	}
	}

	if (gEnigmailSvc.logFileStream) {
	gDebugLog = true;
	gLogLevel = 5;
	}

	return gEnigmailSvc.initialized ? gEnigmailSvc : null;
	}


	function EnigUpdate_0_60() {
	DEBUG_LOG("enigmailCommon.js: EnigUpdate_0_60: \n");

	var savePrefs = false;

	try {
	var userIdSource = gPrefEnigmail.getIntPref("userIdSource");

	gPrefEnigmail.deleteBranch("userIdSource");
	savePrefs = true;

	if (!EnigGetPref("userIdFromAddr")) {

	var userIdFromAddr = false;

	if (userIdSource > 1) {
	userIdFromAddr = true;

	} else {
	var userIdValue = EnigGetPref("userIdValue");

	var mesg = "Please specify your primary email address, which will be used to choose the signing key for outgoing messages.\n If you leave it blank, the FROM address of the message will be used to choose the signing key.\n\nNOTE: Enigmail 0.60 no longer allows the `default signing key' option due to ambiguities.";

	var valueObj = new Object();
	valueObj.value = userIdValue;

	if (EnigPromptValue(mesg, valueObj)) {
	userIdValue = valueObj.value;
	EnigSetPref("userIdValue", userIdValue);
	}

	userIdFromAddr = !userIdValue;

	if (userIdFromAddr)
	EnigAlert("The FROM address will be used to choose the signing key for outgoing messages\n");
	else
	EnigAlert("The user ID "+userIdValue+" will be used to choose the signing key for outgoing messages\n");

	}

	EnigSetPref("userIdFromAddr", userIdFromAddr);
	}

	} catch (ex) {}

	try {
	var defaultEncryptMsg = gPrefEnigmail.getBoolPref("defaultEncryptMsg");

	gPrefEnigmail.deleteBranch("defaultEncryptMsg");
	savePrefs = true;
	} catch (ex) {}

	try {
	var defaultEncryptSignMsg = gPrefEnigmail.getBoolPref("defaultEncryptSignMsg");
	gPrefEnigmail.deleteBranch("defaultEncryptSignMsg");
	savePrefs = true;

	if (defaultEncryptSignMsg)
	gPrefEnigmail.setIntPref("defaultEncryptionOption", 2);

	} catch (ex) {}

	if (savePrefs) {
	DEBUG_LOG("enigmailCommon.js: EnigUpdate_0_60: Updating prefs\n");
	EnigSavePrefs();
	}
	}

	function EnigConfigure() {
	try {
	// Updates for specific versions (to be cleaned-up periodically)
	EnigUpdate_0_60();
	} catch (ex) {}

	var msg = "Do you wish to configure enigmail for version "+
	gEnigmailVersion+" now?";

	var checkValueObj = new Object();
	checkValueObj.value = false;

	var buttonPressed = gPromptService.confirmEx(window,
	"Configure Enigmail?",
	msg,
	ENIG_THREE_BUTTON_STRINGS,
	"Yes",
	"No",
	"Do not ask me again",
	"",
	checkValueObj);

	DEBUG_LOG("enigmailCommon.js: EnigConfigure: "+buttonPressed+" \n");

	if (buttonPressed == 1) // Configure later
	return;

	for (var prefName in gEnigmailPrefDefaults) {
	if (prefName.search(/AlertCount$/) >= 0) {
	// Reset alert count to default value
	try {
	gPrefEnigmail.clearUserPref(prefName);
	} catch(ex) {
	}
	}
	}

	if (buttonPressed == 0) {
	// Configure now
	EnigPrefWindow();

	} else {
	// "Do not ask me again" => "already configured"
	EnigSetPref("configuredVersion", gEnigmailVersion);
	EnigSavePrefs();
	}
	}

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

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

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

	const ENIG_RDONLY = 0x01;
	const ENIG_WRONLY = 0x02;
	const ENIG_CREATE_FILE = 0x08;
	const ENIG_TRUNCATE = 0x20;
	const ENIG_DEFAULT_FILE_PERMS = 0600;

	const EnigFileChannel = new Components.Constructor( "@mozilla.org/network/local-file-channel;1", "nsIFileChannel" );

	const EnigInputStream = new Components.Constructor( "@mozilla.org/scriptableinputstream;1", "nsIScriptableInputStream" );

	function EnigCreateFileStream(filePath, permissions) {
	//DEBUG_LOG("enigmailCommon.js: EnigCreateFileStream: file="+filePath+"\n");

	try {
	var localFile = Components.classes[ENIG_LOCAL_FILE_CONTRACTID].createInstance(Components.interfaces.nsILocalFile);

	localFile.initWithPath(filePath);

	if (localFile.exists()) {

	if (localFile.isDirectory() \|\| !localFile.isWritable())
	throw Components.results.NS_ERROR_FAILURE;

	if (!permissions)
	permissions = localFile.permissions;
	}

	if (!permissions)
	permissions = ENIG_DEFAULT_FILE_PERMS;

	var flags = ENIG_WRONLY \| ENIG_CREATE_FILE \| ENIG_TRUNCATE;

	var fileStream = Components.classes[ENIG_LOCALFILEOUTPUTSTREAM_CONTRACTID].createInstance(Components.interfaces.nsIFileOutputStream);

	fileStream.init(localFile, flags, permissions, 0);

	return fileStream;

	} catch (ex) {
	ERROR_LOG("enigmailCommon.js: EnigCreateFileStream: Failed to create "+filePath+"\n");
	return null;
	}
	}

	function EnigWriteFileContents(filePath, data, permissions) {

	//DEBUG_LOG("enigmailCommon.js: EnigWriteFileContents: file="+filePath+"\n");

	try {
	var fileOutStream = EnigCreateFileStream(filePath, permissions);

	if (data.length) {
	if (fileOutStream.write(data, data.length) != data.length)
	throw Components.results.NS_ERROR_FAILURE;

	fileOutStream.flush();
	}
	fileOutStream.close();

	} catch (ex) {
	ERROR_LOG("enigmailCommon.js: EnigWriteFileContents: Failed to write to "+filePath+"\n");
	return false;
	}

	return true;
	}

	// maxBytes == -1 => read whole file
	function EnigReadFileContents(localFile, maxBytes) {
	DEBUG_LOG("enigmailCommon.js: EnigReadFileContents: file="+localFile.leafName+
	", "+maxBytes+"\n");

	var fileChannel = new EnigFileChannel();

	if (!localFile.exists() \|\| !localFile.isReadable())
	throw Components.results.NS_ERROR_FAILURE;

	fileChannel.init(localFile, ENIG_RDONLY, 0);

	var rawInStream = fileChannel.open();

	var scriptableInStream = new EnigInputStream();
	scriptableInStream.init(rawInStream);

	if ((maxBytes < 0) \|\| (maxBytes > localFile.fileSize))
	maxBytes = localFile.fileSize;

	var fileContents = scriptableInStream.read(maxBytes);

	scriptableInStream.close();

	return fileContents;
	}

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

	function WRITE_LOG(str) {
	dump(str);

	if (gDebugLog && gEnigmailSvc && gEnigmailSvc.logFileStream) {
	gEnigmailSvc.logFileStream.write(str, str.length);
	}
	}

	function DEBUG_LOG(str) {
	if (gLogLevel >= 4)
	WRITE_LOG(str);
	}

	function WARNING_LOG(str) {
	if (gLogLevel >= 3)
	WRITE_LOG(str);
	}

	function ERROR_LOG(str) {
	if (gLogLevel >= 2)
	WRITE_LOG(str);
	}

	function CONSOLE_LOG(str) {
	if (gLogLevel >= 3)
	WRITE_LOG(str);

	if (gEnigmailSvc && gEnigmailSvc.console)
	gEnigmailSvc.console.write(str);
	}

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

	function EnigAlert(mesg) {
	gPromptService.alert(window, "Enigmail Alert", mesg);
	}

	function EnigAlertCount(countPrefName, mesg) {
	var alertCount = EnigGetPref(countPrefName);

	if (alertCount <= 0)
	return;

	alertCount--;
	EnigSetPref(countPrefName, alertCount);

	if (alertCount > 0) {
	mesg += "\n\nThis alert will repeat "+alertCount+" more time";
	mesg += (alertCount == 1) ? "." : "s.";
	} else {
	mesg += "\n\nThis alert will not repeat until you upgrade Enigmail.";
	}

	EnigAlert(mesg);
	}

	function EnigConfirm(mesg) {
	return gPromptService.confirm(window, "Enigmail Confirm", mesg);
	}

	function EnigError(mesg) {
	return gPromptService.alert(window, "Enigmail Error", mesg);
	}


	function EnigPromptValue(mesg, valueObj) {
	var checkObj = new Object();
	return gPromptService.prompt(window, "Enigmail Prompt",
	mesg, valueObj, "", checkObj);
	}

	function EnigOverrideAttribute(elementIdList, attrName, prefix, suffix) {
	for (var index = 0; index < elementIdList.length; index++) {
	var elementId = elementIdList[index];
	var element = document.getElementById(elementId);
	if (element) {
	try {
	var oldValue = element.getAttribute(attrName);
	var newValue = prefix+elementId+suffix;

	//DEBUG_LOG("enigmailCommon.js: *** overriding id="+ elementId+" "+attrName+"="+oldValue+" with "+newValue+"\n");

	element.setAttribute(attrName, newValue);
	} catch (ex) {}
	} else {
	DEBUG_LOG("enigmailCommon.js: *** UNABLE to override id="+ elementId+"\n");
	}
	}
	}


	function EnigPrefWindow() {
	goPreferences("securityItem",
	"chrome://enigmail/content/pref-enigmail.xul",
	"enigmail");
	}

	function EnigAdvPrefWindow() {
	window.openDialog("chrome://enigmail/content/pref-enigmail-adv.xul",
	"_blank", "chrome,resizable=yes");
	}

	function EnigHelpWindow(source) {

	var helpUrl = "http://enigmail.mozdev.org/help.html";

	if (source)
	helpUrl += "#" + source

	window.open(helpUrl);
	}

	function EnigUpgrade() {
	window.openDialog("http://enigmail.mozdev.org/no_wrap/update.html?upgrade=yes&enigmail="+gEnigmailVersion+"&enigmime="+gEnigmimeVersion, "dialog");
	}

	function EnigShowHeadersAll(status) {
	DEBUG_LOG("enigmailCommon.js: EnigShowHeadersAll: "+status+"\n");

	if (status && EnigGetPref("parseAllHeaders")) {
	// Show all mail headers
	gEnigPrefRoot.setIntPref("mail.show_headers", 2);

	} else {
	// Reset mail.show_headers pref to "original" value
	gEnigPrefRoot.setIntPref("mail.show_headers",
	EnigGetPref("show_headers"));
	}
	}

	function EnigDisplayRadioPref(prefName, prefValue, optionElementIds) {
	DEBUG_LOG("enigmailCommon.js: EnigDisplayRadioPref: "+prefName+", "+prefValue+"\n");

	if (prefValue >= optionElementIds.length)
	return;

	var groupElement = document.getElementById("enigmail_"+prefName);
	var optionElement = document.getElementById(optionElementIds[prefValue]);

	if (groupElement && optionElement) {
	groupElement.selectedItem = optionElement;
	groupElement.value = prefValue;
	}
	}

	function EnigSetRadioPref(prefName, optionElementIds) {
	DEBUG_LOG("enigmailCommon.js: EnigSetRadioPref: "+prefName+"\n");

	var groupElement = document.getElementById("enigmail_"+prefName);
	if (groupElement) {
	var optionElement = groupElement.selectedItem;

	var prefValue = optionElement.value;
	if (prefValue < optionElementIds.length) {
	EnigSetPref(prefName, prefValue);
	groupElement.value = prefValue;
	}
	}
	}

	function EnigSetDefaultPrefs() {
	DEBUG_LOG("enigmailCommon.js: EnigSetDefaultPrefs\n");
	for (var prefName in gEnigmailPrefDefaults) {
	var prefValue = EnigGetPref(prefName);
	}
	}

	function EnigSavePrefs() {
	DEBUG_LOG("enigmailCommon.js: EnigSavePrefs\n");
	try {
	gEnigPrefSvc.savePrefFile(null);
	} catch (ex) {
	}
	}

	function EnigGetPref(prefName) {
	var defaultValue = gEnigmailPrefDefaults[prefName];

	var prefValue = defaultValue;
	try {
	// Get pref value
	switch (typeof defaultValue) {
	case "boolean":
	prefValue = gPrefEnigmail.getBoolPref(prefName);
	break;

	case "number":
	prefValue = gPrefEnigmail.getIntPref(prefName);
	break;

	case "string":
	prefValue = gPrefEnigmail.getCharPref(prefName);
	break;

	default:
	prefValue = undefined;
	break;
	}

	} catch (ex) {
	// Failed to get pref value; set pref to default value
	switch (typeof defaultValue) {
	case "boolean":
	gPrefEnigmail.setBoolPref(prefName, defaultValue);
	break;

	case "number":
	gPrefEnigmail.setIntPref(prefName, defaultValue);
	break;

	case "string":
	gPrefEnigmail.setCharPref(prefName, defaultValue);
	break;

	default:
	break;
	}
	}

	//DEBUG_LOG("enigmailCommon.js: EnigGetPref: "+prefName+"="+prefValue+"\n");
	return prefValue;
	}

	function EnigSetPref(prefName, value) {
	DEBUG_LOG("enigmailCommon.js: EnigSetPref: "+prefName+", "+value+"\n");

	var defaultValue = gEnigmailPrefDefaults[prefName];

	var retVal = false;

	switch (typeof defaultValue) {
	case "boolean":
	gPrefEnigmail.setBoolPref(prefName, value);
	retVal = true;
	break;

	case "number":
	gPrefEnigmail.setIntPref(prefName, value);
	retVal = true;
	break;

	case "string":
	gPrefEnigmail.setCharPref(prefName, value);
	retVal = true;
	break;

	default:
	break;
	}

	return retVal;
	}


	function EnigRequestObserver(terminateFunc, terminateArg)
	{
	this._terminateFunc = terminateFunc;
	this._terminateArg = terminateArg;
	}

	EnigRequestObserver.prototype = {

	_terminateFunc: null,
	_terminateArg: null,

	QueryInterface: function (iid) {
	if (!iid.equals(Components.interfaces.nsIRequestObserver) &&
	!iid.equals(Components.interfaces.nsISupports))
	throw Components.results.NS_ERROR_NO_INTERFACE;
	return this;
	},

	onStartRequest: function (channel, ctxt)
	{
	DEBUG_LOG("enigmailCommon.js: EnigRequestObserver.onStartRequest\n");
	},

	onStopRequest: function (channel, ctxt, status)
	{
	DEBUG_LOG("enigmailCommon.js: EnigRequestObserver.onStopRequest: "+ctxt+"\n");
	this._terminateFunc(this._terminateArg, ctxt);
	}
	}


	function EnigConvertFromUnicode(text, charset) {
	DEBUG_LOG("enigmailCommon.js: EnigConvertFromUnicode: "+charset+"\n");

	if (!text \|\| !charset \|\| (charset.toLowerCase() == "iso-8859-1"))
	return text;

	// Encode plaintext
	try {
	var unicodeConv = Components.classes[ENIG_ISCRIPTABLEUNICODECONVERTER_CONTRACTID].getService(Components.interfaces.nsIScriptableUnicodeConverter);

	unicodeConv.charset = charset;
	return unicodeConv.ConvertFromUnicode(text);

	} catch (ex) {
	return text;
	}
	}


	function EnigConvertToUnicode(text, charset) {
	DEBUG_LOG("enigmailCommon.js: EnigConvertToUnicode: "+charset+"\n");

	if (!text \|\| !charset \|\| (charset.toLowerCase() == "iso-8859-1"))
	return text;

	// Encode plaintext
	try {
	var unicodeConv = Components.classes[ENIG_ISCRIPTABLEUNICODECONVERTER_CONTRACTID].getService(Components.interfaces.nsIScriptableUnicodeConverter);

	unicodeConv.charset = charset;
	return unicodeConv.ConvertToUnicode(text);

	} catch (ex) {
	return text;
	}
	}


	function EnigGetDeepText(node, findStr) {

	DEBUG_LOG("enigmailCommon.js: EnigDeepText: <" + node.tagName + ">, '"+findStr+"'\n");

	try {
	var enigMimeService = Components.classes[ENIG_ENIGMIMESERVICE_CONTRACTID].getService(Components.interfaces.nsIEnigMimeService);

	var plainText = enigMimeService.getPlainText(node, findStr);
	return plainText;

	} catch (ex) {
	DEBUG_LOG("enigmailCommon.js: EnigDeepText: Failed to access EnigMimeService\n");
	}

	var depth = 0;
	var textArr = [""];

	while (node) {

	while (node.hasChildNodes()) {
	depth++;
	node = node.firstChild;
	}

	if (node.nodeType == Node.TEXT_NODE) {
	textArr.push(node.data);
	}

	while (!node.nextSibling && (depth > 0)) {
	depth--;
	node = node.parentNode;
	}

	if (depth > 0) {
	node = node.nextSibling;
	} else {
	node = null;
	}
	}

	return textArr.join("");
	}

	// Dump HTML content as plain text
	function EnigDumpHTML(node)
	{
	var type = node.nodeType;
	if (type == Node.ELEMENT_NODE) {

	// open tag
	DEBUG_LOG("<" + node.tagName)

	// dump the attributes if any
	attributes = node.attributes;
	if (null != attributes) {
	var countAttrs = attributes.length;
	var index = 0
	while(index < countAttrs) {
	att = attributes[index];
	if (null != att) {
	DEBUG_LOG(" "+att.name+"='"+att.value+"'")
	}
	index++
	}
	}

	// close tag
	DEBUG_LOG(">")

	// recursively dump the children
	if (node.hasChildNodes()) {
	// get the children
	var children = node.childNodes;
	var length = children.length;
	var count = 0;
	while(count < length) {
	var child = children[count]
	EnigDumpHTML(child)
	count++
	}
	DEBUG_LOG("</" + node.tagName + ">");
	}


	}
	// if it's a piece of text just dump the text
	else if (type == Node.TEXT_NODE) {
	DEBUG_LOG(node.data)
	}
	}

	/////////////////////////
	// Console stuff
	/////////////////////////


	const ENIG_WMEDIATOR_CONTRACTID = "@mozilla.org/rdf/datasource;1?name=window-mediator";


	function EnigClearPassphrase() {
	DEBUG_LOG("enigmailCommon.js: EnigClearPassphrase: \n");

	var enigmailSvc = GetEnigmailSvc();
	if (!enigmailSvc)
	return;

	enigmailSvc.clearCachedPassphrase();
	}

	function EnigViewAbout() {
	DEBUG_LOG("enigmailCommon.js: EnigViewAbout\n");

	toOpenWindowByType("enigmail:about",
	"chrome://enigmail/content/enigmailAbout.xul");
	}

	function EnigViewConsole() {
	DEBUG_LOG("enigmailCommon.js: EnigViewConsole\n");

	toOpenWindowByType("enigmail:console",
	"chrome://enigmail/content/enigmailConsole.xul");
	}

	function EnigViewDebugLog() {
	DEBUG_LOG("enigmailCommon.js: EnigViewDebugLog\n");

	var logDirectory = EnigGetPref("logDirectory");

	if (!logDirectory) {
	EnigAlert("Please set advanced preference 'Log directory' to create log file");
	return;
	}

	if (!gEnigmailSvc) {
	EnigAlert("Log file has not been created yet!");
	return;
	}

	if (!gEnigmailSvc.logFileStream) {
	EnigAlert("Please restart Mozilla to create log file");
	return;
	}

	gEnigmailSvc.logFileStream.flush();

	logDirectory = logDirectory.replace(/\\/g, "/");

	var logFileURL = "file:///" + logDirectory + "/enigdbug.txt";

	window.open(logFileURL, 'Enigmail Debug Log');
	}

	function EnigKeygen() {
	DEBUG_LOG("enigmailCommon.js: EnigKeygen\n");

	window.openDialog('chrome://enigmail/content/enigmailKeygen.xul',
	'Enigmail Key Generation',
	'chrome,dialog,close=no,resizable=yes,width=600');

	}

	// retrieves the most recent navigator window (opens one if need be)
	function EnigLoadURLInNavigatorWindow(url, aOpenFlag)
	{
	DEBUG_LOG("enigmailCommon.js: EnigLoadURLInNavigatorWindow: "+url+", "+aOpenFlag+"\n");

	var navWindow;

	// if this is a browser window, just use it
	if ("document" in top) {
	var possibleNavigator = top.document.getElementById("main-window");
	if (possibleNavigator &&
	possibleNavigator.getAttribute("windowtype") == "navigator:browser")
	navWindow = top;
	}

	// if not, get the most recently used browser window
	if (!navWindow) {
	var wm = Components.classes[ENIG_WMEDIATOR_CONTRACTID].getService(Components.interfaces.nsIWindowMediator);
	navWindow = wm.getMostRecentWindow("navigator:browser");
	}

	if (navWindow) {

	if ("loadURI" in navWindow)
	navWindow.loadURI(url);
	else
	navWindow._content.location.href = url;

	} else if (aOpenFlag) {
	// if no browser window available and it's ok to open a new one, do so
	navWindow = window.open(url, "Enigmail");
	}

	DEBUG_LOG("enigmailCommon.js: EnigLoadURLInNavigatorWindow: navWindow="+navWindow+"\n");

	return navWindow;
	}

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