var HOST = "127.0.0.1";
var PORT = 35555;
var MY_PUBKEY_STR;
var MY_HASH_KEY;
var MY_PUBKEY;

var swfu;
var FILE_ID;
var destFileUsername = "";
//upload_url: "http://192.168.0.202/upload/demos/simpledemo/upload.php"
//upload_url: url,
function initFileTransfer(url, filetype, sizeLimit, group ,destusername){
	destFileUsername = destusername;
    var settings = {
        flash_url: "swfupload/swfupload.swf",
        upload_url: url,
        post_params: {
            "g": group
        },
        use_query_string: true,
        file_size_limit: sizeLimit + " KB",
        file_types: filetype,
        file_types_description: "All Files",
        file_upload_limit: 100,
        file_queue_limit: 0,
        custom_settings: {
            progressTarget: "fsUploadProgress",
            cancelButtonId: "btnCancel"
        },
        debug: false,
        
        // Button Settings
        button_image_url: "images/file_transfer.gif",
        button_placeholder_id: "spanButtonPlaceholder",
        button_width: 16,
        button_height: 16,
        
        // The event handler functions are defined in handlers.js
        //swfupload_loaded_handler: swfUploadLoaded,
        file_queued_handler: fileQueued,
        file_queue_error_handler: fileQueueError,
        file_dialog_complete_handler: fileDialogComplete,
        upload_start_handler: uploadStart,
        upload_progress_handler: uploadProgress,
        upload_error_handler: uploadError,
        upload_success_handler: uploadSuccess,
        upload_complete_handler: uploadComplete,
        queue_complete_handler: queueComplete // Queue plugin event
    };
    swfu = new SWFUpload(settings);
}

function setFileTransferNewName(newName){
	try {
		swfu.removePostParam("fn");
		swfu.addPostParam("fn", newName);
	}
	catch(e)
	{
		
	}
}

function cancelFileTransfer(fileID){
    FILE_ID = fileID;
    swfu.cancelQueue();
}

function openP2Pvideo(url){
    var so = new SWFObject(url, "p2p_video", "100%", "100%", "10", "#FFFFFF");
    so.addParam("quality", "high");
    so.addParam("wmode", "transparent");
    so.addParam("allowScriptAccess", "always");
    so.useExpressInstall('expressInstall.swf');
    so.write("p2p_video");
}

if (!isSupportFlash()) {
    var my_domain = "";
    if (my_domain == undefined || my_domain == "") {
        my_domain = getShortDomain();
    }
    document.domain = my_domain;
}

function openLobbyVideo(url){
    var flashvars = {};
    var params = {};
    var attributes = {
        id: "lobby_video",
        name: "lobby_video",
        allowScriptAccess: "always",
        wmode: "transparent",
        bgColor: "ffcc00",
        align: "middle"
    };
    swfobject.embedSWF(url, "lobby_video", "100%", "150", "9.0.0", "expressInstall.swf", flashvars, params, attributes);
}

function removeWatchingUser(username){
    var lobbyVideoSWF = getMovie("lobby_video");
    lobbyVideoSWF.removeWatchingUser(username);
}

function videoInLobbyCallCommand(command){
    var lobbyVideoSWF = getMovie("lobby_video");
    lobbyVideoSWF.callCommand(command);
}

function videoInLobbyCallCommandPara(command, para){
    var lobbyVideoSWF = getMovie("lobby_video");
    lobbyVideoSWF.callCommand(command, para);
}

function isIP(ipStr){
    var result = false;
    if (ipStr.length > 0) {
        try {
            var temp = ipStr.split(".");
            if (temp.length != 4) {
                result = false;
            }
            else {
                for (var i = 0; i < temp.length; i++) {
                    if (!isIntegerInRange(temp[i], 0, 255)) {
                        result = false;
                        break;
                    }
                }
                result = true;
            }
        } 
        catch (e) {
            result = false;
        }
    }
    else {
        result = false;
    }
    return result;
}

function isIntegerInRange(s, a, b){
    if (isEmpty(s)) 
        if (isIntegerInRange.arguments.length == 1) 
            return false;
        else 
            return (isIntegerInRange.arguments[1] == true);
    if (!isInteger(s, false)) 
        return false;
    var num = parseInt(s);
    return ((num >= a) && (num <= b));
}

function isInteger(s){
    var i;
    if (isEmpty(s)) 
        if (isInteger.arguments.length == 1) 
            return 0;
        else 
            return (isInteger.arguments[1] == true);
    for (var i = 0; i < s.length; i++) {
        var c = s.charAt(i);
        if (!isDigit(c)) 
            return false;
    }
    return true;
}

function isEmpty(s){
    return ((s == null) || (s.length == 0))
}

function isDigit(c){
    return ((c >= "0") && (c <= "9"))
}

function getDomain(){
    var COLON = ":";
    var DOT = ".";
    var domainStr = "";
    try {
        hostStr = window.location.host;
        domainStr = hostStr.indexOf(COLON) == -1 ? hostStr : hostStr.substring(0, hostStr.indexOf(COLON));
        if (!isIP(domainStr)) {
            var domainArray = domainStr.split(".");
            //if (domainArray.length > 2) {
            //domainStr = domainArray[domainArray.length - 2] + "." + domainArray[domainArray.length - 1];
            //}
        }
    } 
    catch (e) {
        domainStr = "";
    }
    return domainStr;
}


function getShortDomain(){
    var COLON = ":";
    var DOT = ".";
    var domainStr = "";
    try {
        hostStr = window.location.host;
        domainStr = hostStr.indexOf(COLON) == -1 ? hostStr : hostStr.substring(0, hostStr.indexOf(COLON));
        if (!isIP(domainStr)) {
            var domainArray = domainStr.split(".");
            if (domainArray.length > 2) {
                domainStr = domainArray[domainArray.length - 2] + "." + domainArray[domainArray.length - 1];
            }
        }
    } 
    catch (e) {
        domainStr = "";
    }
    return domainStr;
}

function getMovie(name){
    try {
        //var movieName = "topcmm_flashchat";
        var movieName = name;
        if (isIE()) {
            return window[movieName];
        }
        else {
            return document[movieName];
        }
    } 
    catch (e) {
        return undefined;
    }
}

function isIE(){
    return getUserAgent().indexOf("msie") != -1;
}

function getLanguage(){
    if (isIE()) {
        return navigator.browserLanguage;
    }
    else {
        return navigator.language;
    }
}

function isMobile(){
    var userAgentStr = getUserAgent();
    return (userAgentStr.indexOf("iphone") != -1 || userAgentStr.indexOf("android") != -1 || userAgentStr.indexOf("msiemobile") != -1);
}

function getUserAgent(){
    return navigator.userAgent.toLowerCase();
}

function isSupportFlash(){
    var result = false;
    try {
        if (navigator.plugins && navigator.plugins.length > 0) {
            var swf = navigator.plugins["Shockwave Flash"];
            if (swf) {
                result = true;
            }
        }
        if (!result) {
            var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
            if (swf) {
                result = true;
            }
        }
    } 
    catch (e) {
        result = false;
    }
    return result;
}

function flashConnect(host, port){
    var swfObj = getMovie("topcmm_flashchat");
    if (swfObj == undefined || swfObj.connect == undefined) {
        return false;
    }
    return swfObj.connect(host, port);
}

function flashSendMessage(msg){
    var swfObj = getMovie("topcmm_flashchat");
    swfObj.sendMessage(msg);
}

function httpConnect(host, port){
    HOST = host;
    PORT = port;
    onConnected();
    return true;
}

function httpSendMessage(msg){
    message = msg + "0";
    message = encodeURIComponent(encodeURIComponent(message));
    var randomNumber = Math.floor(Math.random() * 999999999999);
    var url = "http://" + HOST + ":" + PORT + "/123flashchat_" + randomNumber;
    var parameter = "protocol=" + message;
    if (message.indexOf("%253CInit") == 0) {
        J(url, parameter, "l"); // long http connection
    }
    else {
        J(url, parameter, "s" + randomNumber); // short http connection
    }
}

/* 
 * add iframe inorder to connect to server
 * z means iframe's name
 */
function c(z){
    var v = null;
    var o = z;
    var j = z + '_div';
    var w = 'border-width:0;height:0;width:0;visibility:hidden;';
    var k = 'position:absolute;top:0;left:0;width:0;height:0;overflow:hidden;';
    if (document.getElementById(o)) {
        return (document.getElementById(o));
    }
    try {
        var C = document.createElement("iframe");
        C.setAttribute("id", o);
        C.setAttribute("name", o);
        C.setAttribute("style", w);
        //C.setAttribute("onreadystatechange", 'fnStartInit(\'' + o + '\');');
        var B = document.createElement("div");
        B.setAttribute("id", j);
        B.setAttribute("style", k);
        B.appendChild(C);
        document.body.appendChild(B);
        if (typeof document.frames != "undefined") {
            v = document.frames[o];
        }
        if (!v || typeof v.nodeType == "undefined") {
            v = document.getElementById(o);
        }
    } 
    catch (e) {
        var n = '<iframe id="' + o + '" name="' + o + '" style="' + w + '"><\/iframe>';
        if (!document.getElementById(j)) {
            B = document.createElement("div");
            B.setAttribute('id', j);
            B.setAttribute('style', k);
            B.innerHTML = n;
            document.getElementsByTagName('DIV')[0].appendChild(B);
        }
        else {
            document.getElementById(j).innerHTML = n;
        }
        v = document.getElementById(o);
    }
    v.onreadystatechange = function(){
        if (v.readyState == "complete") {
            var contentDocument = d(v);
            v.parentNode.removeChild(v);
        }
    }    
    return v;
}

/* 
 * set iframe's location
 * url: iframe's url
 * f:url's paremeters
 * r:iframe's name
 */
function J(url, f, r){
    try {
        //var m = is_ie;
        var g = url + "?" + f;
        var v = c(r);
        var contentDocument = d(v);
    } 
    catch (l) {
    }
    try {
        if (!contentDocument.location) {
            contentDocument.location = g;
        }
        else {
            contentDocument.location.replace(g);
        }
    } 
    catch (l) {
        v.src = g;
    }
}

/* 
 * get object of iframe
 */
function d(A){
    if (A.contentDocument) {
        return (A.contentDocument);
    }
    else 
        if (A.contentWindow) {
            return (A.contentWindow.document);
        }
        else 
            if (A.document) {
                return (A.document);
            }
            else {
                return (undefined);
            }
}

/*
 * Server push message
 */
function I(i){
    receiveMessage(i);
}

function setPublicKey(keyCode, seqid, sid){
    MY_PUBKEY_STR = keyCode;
    MY_HASH_KEY = genFCKey();
    MY_PUBKEY = new RSAKeyPair("11", MY_PUBKEY_STR);
    var sk = encryptedString(MY_PUBKEY, MY_HASH_KEY);
    var skXML = '<Suhk k="' + sk + '"';
    if (seqid != null && seqid != undefined && seqid != "") {
    
        skXML += ' msqid="' + seqid + '"'
    }
    skXML += ' sid="' + sid + '"'
    skXML += '></Suhk>';
    if (isMobile()) {
        httpSendMessage(skXML);
    }
    else {
        flashSendMessage(skXML);
    }
}

function encryptPassword(pwd){
    return encryptedString(MY_PUBKEY, pwd);
}

function encryptPasswordByPublicKey(pwd, publicKeyStr){
    var publicKey = new RSAKeyPair("11", publicKeyStr)
    return encryptedString(publicKey, pwd);
}

function encodeMessage(msg, key){
    if ((key == "") || (key == undefined)) {
        return fcEncode(MY_HASH_KEY, msg);
    }
    else {
        return fcEncode(key, msg);
    }
    
}

function decodeMessage(msg, roomKeyCode){
    var res = "";
    if ((roomKeyCode == "") || (roomKeyCode == undefined)) {
        res = fcDecode(MY_HASH_KEY, msg);
    }
    else {
        res = fcDecode(roomKeyCode, msg);
    }
    return res.split("\\").join("\\\\");
}

function encryptWithRsaKeyPair(exponent, module, str){
    return getEncryptedMsgWithRsaKeyPair(exponent, module, str);
}

function getEncryptedMsgWithRsaKeyPair(exponent, module, str){
    var key = new RSAKeyPair(exponent, module);
    return encryptedString(key, str);
}