/**
* This code is mostly from the old Etherpad. Please help us to comment this code.
* This helps other people to understand this code better and helps them to improve it.
* TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
*/
/**
* Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* global $, window */
var socket;
// These jQuery things should create local references, but for now `require()`
// assigns to the global `$` and augments it with plugins.
require('./jquery');
require('./farbtastic');
require('./excanvas');
JSON = require('./json2');
var chat = require('./chat').chat;
var getCollabClient = require('./collab_client').getCollabClient;
var padconnectionstatus = require('./pad_connectionstatus').padconnectionstatus;
var padcookie = require('./pad_cookie').padcookie;
var paddocbar = require('./pad_docbar').paddocbar;
var padeditbar = require('./pad_editbar').padeditbar;
var padeditor = require('./pad_editor').padeditor;
var padimpexp = require('./pad_impexp').padimpexp;
var padmodals = require('./pad_modals').padmodals;
var padsavedrevs = require('./pad_savedrevs');
var paduserlist = require('./pad_userlist').paduserlist;
var padutils = require('./pad_utils').padutils;
var colorutils = require('./colorutils').colorutils;
var createCookie = require('./pad_utils').createCookie;
var readCookie = require('./pad_utils').readCookie;
var randomString = require('./pad_utils').randomString;
var hooks = require('./pluginfw/hooks');
function createCookie(name, value, days, path)
{
if (days)
{
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
}
else var expires = "";
if(!path)
path = "/";
//Check if the browser is IE and if so make sure the full path is set in the cookie
if(navigator.appName=='Microsoft Internet Explorer'){
document.cookie = name + "=" + value + expires + "; path="+document.location;
}
else{
document.cookie = name + "=" + value + expires + "; path=" + path;
}
}
function readCookie(name)
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++)
{
var c = ca[i];
while (c.charAt(0) == ' ') c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
}
return null;
}
function randomString()
{
var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
var string_length = 20;
var randomstring = '';
for (var i = 0; i < string_length; i++)
{
var rnum = Math.floor(Math.random() * chars.length);
randomstring += chars.substring(rnum, rnum + 1);
}
return "t." + randomstring;
}
function getParams()
{
var params = getUrlVars()
var showControls = params["showControls"];
var showChat = params["showChat"];
var userName = params["userName"];
var userColor = params["userColor"];
var showLineNumbers = params["showLineNumbers"];
var useMonospaceFont = params["useMonospaceFont"];
var IsnoColors = params["noColors"];
var rtl = params["rtl"];
var alwaysShowChat = params["alwaysShowChat"];
var lang = params["lang"];
if(IsnoColors)
{
if(IsnoColors == "true")
{
settings.noColors = true;
$('#clearAuthorship').hide();
}
}
if(showControls)
{
if(showControls == "false")
{
$('#editbar').hide();
$('#editorcontainer').css({"top":"0px"});
}
}
if(showChat)
{
if(showChat == "false")
{
$('#chaticon').hide();
}
}
if(showLineNumbers)
{
if(showLineNumbers == "false")
{
settings.LineNumbersDisabled = true;
}
}
if(useMonospaceFont)
{
if(useMonospaceFont == "true")
{
settings.useMonospaceFontGlobal = true;
}
}
if(userName)
{
// If the username is set as a parameter we should set a global value that we can call once we have initiated the pad.
settings.globalUserName = decodeURIComponent(userName);
}
if(userColor)
// If the userColor is set as a parameter, set a global value to use once we have initiated the pad.
{
settings.globalUserColor = decodeURIComponent(userColor);
}
if(rtl)
{
if(rtl == "true")
{
settings.rtlIsTrue = true
}
}
if(alwaysShowChat)
{
if(alwaysShowChat == "true")
{
chat.stickToScreen();
}
}
if(lang)
{
if(lang !== "")
{
document.webL10n.setLanguage(lang);
}
}
}
function getUrlVars()
{
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
for(var i = 0; i < hashes.length; i++)
{
hash = hashes[i].split('=');
vars.push(hash[0]);
vars[hash[0]] = hash[1];
}
return vars;
}
function savePassword()
{
//set the password cookie
createCookie("password",$("#passwordinput").val(),null,document.location.pathname);
//reload
document.location=document.location;
}
function handshake()
{
var loc = document.location;
//get the correct port
var port = loc.port == "" ? (loc.protocol == "https:" ? 443 : 80) : loc.port;
//create the url
var url = loc.protocol + "//" + loc.hostname + ":" + port + "/";
//find out in which subfolder we are
var resource = exports.baseURL.substring(1) + "socket.io";
//connect
socket = pad.socket = io.connect(url, {
resource: resource,
'max reconnection attempts': 3,
'sync disconnect on unload' : false
});
function sendClientReady(isReconnect)
{
var padId = document.location.pathname.substring(document.location.pathname.lastIndexOf("/") + 1);
padId = decodeURIComponent(padId); // unescape neccesary due to Safari and Opera interpretation of spaces
if(!isReconnect)
document.title = padId.replace(/_+/g, ' ') + " | " + document.title;
var token = readCookie("token");
if (token == null)
{
token = "t." + randomString();
createCookie("token", token, 60);
}
var sessionID = readCookie("sessionID");
var password = readCookie("password");
var msg = {
"component": "pad",
"type": "CLIENT_READY",
"padId": padId,
"sessionID": sessionID,
"password": password,
"token": token,
"protocolVersion": 2
};
//this is a reconnect, lets tell the server our revisionnumber
if(isReconnect == true)
{
msg.client_rev=pad.collabClient.getCurrentRevisionNumber();
msg.reconnect=true;
}
socket.json.send(msg);
};
var disconnectTimeout;
socket.once('connect', function () {
sendClientReady(false);
});
socket.on('reconnect', function () {
//reconnect is before the timeout, lets stop the timeout
if(disconnectTimeout)
{
clearTimeout(disconnectTimeout);
}
pad.collabClient.setChannelState("CONNECTED");
sendClientReady(true);
});
socket.on('disconnect', function (reason) {
if(reason == "booted"){
pad.collabClient.setChannelState("DISCONNECTED");
} else {
function disconnectEvent()
{
pad.collabClient.setChannelState("DISCONNECTED", "reconnect_timeout");
}
pad.collabClient.setChannelState("RECONNECTING");
disconnectTimeout = setTimeout(disconnectEvent, 10000);
}
});
var receivedClientVars = false;
var initalized = false;
socket.on('message', function(obj)
{
//the access was not granted, give the user a message
if(!receivedClientVars && obj.accessStatus)
{
if(obj.accessStatus == "deny")
{
$("#editorloadingbox").html("You do not have permission to access this pad");
}
else if(obj.accessStatus == "needPassword")
{
$("#editorloadingbox").html("You need a password to access this pad
" +
"