Develop Reference

Server crash, sending message at restart (Node.js / Socket.io)

Hey guys i am doing a message system all is working fine but now i want to add the thing that if the server crash and restart the message that have been send during this time will be send at the restart of the server. I am trying to save the information of the message in the client side and make a "waiting" system that will wait to a server response. So i wanted to know how can i do that "waiting" system because now i am doing like that :
while (socket.connected === false) {
}
But that make bug the client because the infinit loop is way too fast ... so is that possible to set a timer ? (i have already tried but i dind't find how to make a good timer in a loop).
Or maybe i am totaly wrong and i haven't to do a waiting system but an other thing so tell me if my technic will not work or if there is one better :)
So here is my code :
Client.js (startTchat is called when someone is connected)
(function($){
var socket = io.connect('http://localhost:1337');
var lastmsg = [];
var me_id = [];
var friend_ = [];
var conv_ = [];
var isPlace_ = [];
var isLocation_ = [];
var me_ = [];
var my_id;
startTchat = function(user_id, username, friend_id, conv_id, isPlace, isLocalisation) {
my_id = user_id;
socket.emit('login_chat', {
id : user_id,
username : username,
friend : friend_id,
conv : conv_id,
isPlace : isPlace,
isLocalisation : isLocalisation,
})
};
/**
* Error
*/
socket.on('error', function(err){
alert(err);
});
/**
* Messages
*/
$('#chat_form').submit(function(event){
var a = 0;
while (socket.connected === false) {
}
event.preventDefault();
console.log('ME', my_id, 'TAB', me_id);
socket.emit('new_msg', {message: $('#message').val() }, me_id[my_id], friend_[my_id], conv_[my_id], isPlace_[my_id], isLocation_[my_id], me_[my_id]);
if (a === 1) {
console.log('HEYYYYYYYYYY', my_id);
}
$('#message').val('');
$('#message').focus();
});
socket.on('new_msg', function(message, me, id_receiver, id_transmiter){
if (me.id === id_receiver || me.id === id_transmiter) {
if (lastmsg != message.user.id) {
$('#new_message').append('<span class="time_date"> ' + message.h + ' : ' + message.m + ' | ' + message.y + '-' + message.m + '-' + message.d + ' | ' + message.user.username + '</span>'
+ '<p>' + message.message + '</p>\n'
);
lastmsg = message.user.id;
} else {
$('#new_message').append('<p>' + message.message + '</p>'
);
}
}
});
/**
* Login
*/
socket.on('new_user', function(user, friend, conv, isPlace, isLocation){
me_id[user.id] = user.id;
friend_[user.id] = friend;
conv_[user.id] = conv;
isPlace_[user.id] = isPlace;
me_[user.id] = user;
isLocation_[user.id] = isLocation;
$('#new_user').append('<div class="chat_list active_chat" id="' + user.id + '">\n' +
' <div class="chat_people">\n' +
' <div class="chat_img"> <img src="https://ptetutorials.com/images/user-profile.png" alt="sunil"> </div>\n' +
' <div class="chat_ib">\n' +
' <h5>' + user.username + ' <span class="chat_date">Id : ' + user.id + '</span></h5>\n' +
' </div>\n' +
' </div>\n' +
' </div>');
});
/**
* Disconnect
*/
socket.on('disc_user', function(user){
$('#' + user.id).remove();
})
})(jQuery);
And server.js :
var http = require('http');
var MongoClient = require('mongodb').MongoClient;
// Connection URL
const url = 'mongodb://localhost:27017';
// Database Name
const dbName = 'msg';
MongoClient.connect(url, function(err, client) {
if (err)
throw err;
console.log('MongoDB connected ...');
httpServer = http.createServer(function(req, res) {
console.log('This is a test');
res.end('Hello World');
});
httpServer.listen(1337);
var io = require('socket.io').listen(httpServer);
var users = {};
var messages = [];
io.sockets.on('connection', function (socket) {
const collection = client.db(dbName).collection('MessageUser');
var me = false;
var friend = false;
var conv = false;
var isPlace = false;
var room = false;
var isLocalisation = false;
for(var k in users) {
socket.emit('new_user', users[k]);
}
/**
* Login
*/
socket.on('login_chat', function (user) {
me = user;
friend = user.friend;
isPlace = user.isPlace;
conv = user.conv;
isLocalisation = user.isLocalisation;
if (isPlace === 0) {
room = user.conv;
} else {
room = user.conv + '-Place';
}
socket.join(room);
//console.log('New user : ', me.username, ' - id : ', me.id);
users[me.id] = me;
io.sockets.emit('new_user', me, friend, conv, isPlace, isLocalisation);
});
/**
* Disconnect
*/
socket.on('disconnect', function() {
if (!me) {
return false;
}
delete users[me.id];
io.sockets.emit('disc_user', me);
});
/**
* Message receive
*/
socket.on('new_msg', function(message, me_id, friend_, conv_, isPlace_, isLocalisation_, me_){
if (message.message !== '') {
message.user = me;
date = new Date();
message.h = date.getHours();
message.m = date.getMinutes();
message.y = date.getFullYear();
message.m = date.getMonth();
message.d = date.getDate();
console.log(message);
messages.push(message);
msg = {};
msg.content = message.message;
msg.sendAt = new Date();
msg.idTransmitter = me.id;
if (isPlace === 0) {
msg.idReceiver = friend;
} else {
msg.idReceiver = conv;
}
msg.idConversation = conv;
msg.isPlace = isPlace;
msg.isLocalisation = isLocalisation;
collection.insertOne(msg);
console.log('---1---', msg.idReceiver, '---2---', msg.idTransmitter, '---3---', me);
io.to(room).emit('new_msg', message, me, msg.idReceiver, msg.idTransmitter);
}
});
});
});
ps : Tell me if you need more info, sorry if i forget something that my first time using js, node and socket.io :)

while (socket.connected === false) {
}
Don't do that, it will block your page and hold your processor to 100%.
Instead, use setTimeout. It's the equivalent of sleep in javascript. You need to refactor your code to call setTimeout in a recursive fashion, and count the number of "retries" (if you want to stop at some point).
Code:
$('#chat_form').submit(function(event){
var retries = 0, max_retries = 10;
function tryNewMessage() {
if (socket.connected === false) {
if (retries >= max_retries) return; //handle max_retries properly in your code
//this is where you sleep for 1 second, waiting for the server to come online
setTimeout(tryNewMessage, 1000);
retries++;
}
else {
var a = 0;
event.preventDefault();
console.log('ME', my_id, 'TAB', me_id);
socket.emit('new_msg', {message: $('#message').val() }, me_id[my_id], friend_[my_id], conv_[my_id], isPlace_[my_id], isLocation_[my_id], me_[my_id]);
if (a === 1) {
console.log('HEYYYYYYYYYY', my_id);
}
$('#message').val('');
$('#message').focus();
}
}
tryNewMessage();
});

Opentok chat is running slowly according I execute session.disconnect() and session.connect()

I am new to the Opentok API and I am writing tests. In my tests I simulated disconnecting from the room and connecting again, but if I execute it at various times, the chat is runs slowly, until broken.
To init the chat I run $scope.initSession() and to disconnect I run $scope.disconnectFromSession().
I am using the Opentok.js version 2.13.2. See my following code:
var apiKey, sessionId, token;
apiKey = //my api key;
sessionId = //my sessionid;
token = //my token;
var session = null;
var publisher = null;
var stream = null;
var connectionCount = 0;
var publisherProperties = {frameRate: 7};
$scope.connected = false;
$scope.initSession = function() {
if (OT.checkSystemRequirements() == 1) {
// Initialize Session Object
session = OT.initSession(apiKey, sessionId);
createElement("publisher");
// initialize a publisher
publisher = OT.initPublisher('publisher', publisherProperties);
session.on({
streamCreated: function(event) {
console.log("EVENT streamCreated: " + event.stream.name + " - " + event.reason);
createElement("subscriber");
stream = event.stream;
session.subscribe(stream, 'subscriber');
},
streamDestroyed: function(event) {
event.preventDefault();
console.log("EVENT streamDestroyed: " + event.stream.name + " - " + event.reason);
console.log('Stream ${event.stream.name} ended because ${event.reason}.');
}
});
connectToSession();
} else {
console.log('Browser haven´t support to WebRTC');
}
}
function connectToSession() {
session.connect(token, function(err) {
if (err) {
if (err.name === "OT_NOT_CONNECTED") {
showMessage('Failed to connect. Please check your connection and try connecting again.');
} else {
showMessage('An unknown error occurred connecting. Please try again later.');
}
} else {
// publish to the session
session.publish(publisher);
$scope.connected = true;
}
});
}
function createElement(id) {
console.log(document.getElementById(id));
if (document.getElementById(id) === null) {
var divPublisher = document.createElement("div");
divPublisher.setAttribute("id", id);
document.getElementById("div-videos").appendChild(divPublisher);
}
}
$scope.disconnectFromSession = function() {
session.disconnect();
$scope.connected = false;
OT.off();
}
$scope.initSession();
I appreciate any help.

Multiple sockets override itself

My Code
I want to make a multiple connection to a telnet console. This project is for Teamspeak and Teamspeak just communicate with telnet. I´ve a object that create a telnet connection as socket with the net lib. If we have just one instance to connect all works fine and I get the serverlist over the telnet connection back. But if I´ve two instance he says invalid loginname or password. That login informations are correct and he also try just to connect to one server.
My Class:
/*
Teamspeak query client class
#instance: Instance object of the teamspeak query client
*/
function TeamspeakQueryClient(instance) {
events.EventEmitter.call(this);
var $this = this,
socket = net.connect(instance.port, instance.ip),
reader = null,
skipLines = -2,
queue = [ ],
executing = null,
server = null;
this.Type = 'Unknown';
this.Id = null;
this.Connected = false;
this.Banned = false;
/*
Socket settings
*/
socket.setKeepAlive(true, 60000);
/*
Socket connect to the teamspeak instance
*/
socket.on("connect", function() {
reader = LineInputStream(socket);
reader.on("line", function(line) {
var s = line.trim();
console.log(line);
// Skipp the first lines
if(skipLines < 0){
if(line === 'TS3') {
this.Type = 'Teamspeak';
};
skipLines++;
if(skipLines === 0) {
checkQueue();
if(server === null) {
$this.SendCommand("login", {client_login_name: instance.client, client_login_password: instance.password}, function(err, response, rawResponse) {
console.log(err);
if(err === null) {
if(err.id === 3329) {
$this.Banned = true;
};
$this.CloseSocket();
} else {
$this.SendCommand("serverlist", null, function(err, response, rawResponse){
console.log(response);
if(response[0] === undefined) {
console.log('1 server');
} else {
console.log('mehrere server');
};
//console.log(rawResponse);
/*cl.send("clientlist", function(err, response, rawResponse){
console.log(util.inspect(response));
});*/
});
};
});
} else {
console.log(server);
};
};
return;
};
// Parse server request
var response = undefined;
if(s.indexOf("error") === 0){
response = parseResponse(s.substr("error ".length).trim());
executing.error = response;
if(executing.error.id === 0) delete executing.error;
if(executing.cb) executing.cb.call(executing, executing.error, executing.response,
executing.rawResponse);
executing = null;
checkQueue();
} else if(s.indexOf("notify") === 0){
s = s.substr("notify".length);
response = parseResponse(s);
$this.emit(s.substr(0, s.indexOf(" ")), response);
} else if(executing) {
response = parseResponse(s);
executing.rawResponse = s;
executing.response = response;
};
});
$this.emit("connect");
});
/*
Socket error
*/
socket.on("error", function(err){
log.LogLine(1, 'TeamspeakQueryClient: We got a error');
log.LogLine(1, 'Message: '+err);
$this.emit("error", err);
});
/*
Socket close
*/
socket.on("close", function(){
log.LogLine(3, 'TeamspeakQueryClient: Socket from '+instance.alias+' closeing...');
$this.emit("close", queue);
});
/*
Function to send a custom command to the telnet console
*/
TeamspeakQueryClient.prototype.SendCommand = function SendCommand() {
var args = Array.prototype.slice.call(arguments);
//console.log(args);
var options = [], params = {};
var callback = undefined;
var cmd = args.shift();
args.forEach(function(v){
if(util.isArray(v)){
options = v;
} else if(typeof v === "function"){
callback = v;
} else {
params = v;
}
});
var tosend = tsescape(cmd);
options.forEach(function(v){
tosend += " -" + tsescape(v);
});
for(var k in params){
var v = params[k];
if(util.isArray(v)){ // Multiple values for the same key - concatenate all
var doptions = v.map(function(val){
return tsescape(k) + "=" + tsescape(val);
});
tosend += " " + doptions.join("|");
} else {
tosend += " " + tsescape(k.toString()) + "=" + tsescape(v.toString());
}
}
queue.push({cmd: cmd, options: options, parameters: params, text: tosend, cb: callback});
if(skipLines === 0) checkQueue();
};
/*
Function to close the socket
*/
TeamspeakQueryClient.prototype.CloseSocket = function CloseSocket() {
socket.destroy();
$this.emit("close");
};
/*
Function to parse a string to a object
#s: String of the object that will be parsed
#return: Object of the parsed string
*/
function parseResponse(s){
var response = [];
var records = s.split("|");
response = records.map(function(k){
var args = k.split(" ");
var thisrec = { };
args.forEach(function(v) {
if(v.indexOf("=") > -1) {
var key = tsunescape(v.substr(0, v.indexOf("=")));
var value = tsunescape(v.substr(v.indexOf("=")+1));
if(parseInt(value, 10) == value) value = parseInt(value, 10);
thisrec[key] = value;
} else {
thisrec[v] = "";
};
});
return thisrec;
});
if(response.length === 0) {
response = null;
} else if(response.length === 1) {
response = response.shift();
};
return response;
};
/*
Function to write commands into the socket
*/
function checkQueue() {
if(!executing && queue.length >= 1){
executing = queue.shift();
socket.write(executing.text + "\n");
};
};
/*
Function to escape a telnet string
#s: String that want to be escaped
#return: The escaped string
*/
function tsescape(s) {
return s
.replace(/\\/g, "\\\\")
.replace(/\//g, "\\/")
.replace(/\|/g, "\\p")
.replace(/\n/g, "\\n")
.replace(/\r/g, "\\r")
.replace(/\t/g, "\\t")
.replace(/\v/g, "\\v")
.replace(/\f/g, "\\f")
.replace(/ /g, "\\s");
};
/*
Function to unescape a telnet string
#s: String that want to be unescaped
#return: The unescaped string
*/
function tsunescape(s) {
return s
.replace(/\\s/g, " ")
.replace(/\\p/g, "|")
.replace(/\\n/g, "\n")
.replace(/\\f/g, "\f")
.replace(/\\r/g, "\r")
.replace(/\\t/g, "\t")
.replace(/\\v/g, "\v")
.replace(/\\\//g, "\/")
.replace(/\\\\/g, "\\");
};
};
util.inherits(TeamspeakQueryClient, events.EventEmitter);
How I open the class
if I call example one all works fine but example two has the descriped error.
Example 1:
test1 = new TeamspeakQueryClient({
"alias": "First-Coder Testinsance",
"ip": "first-coder.de",
"port": 10011,
"client": "serveradmin",
"password": "SECURE"
});
Example 2:
test1 = new TeamspeakQueryClient({
"alias": "First Insance",
"ip": "HIDDEN",
"port": HIDDEN,
"client": "serveradmin",
"password": "SECURE"
});
test2 = new TeamspeakQueryClient({
"alias": "Second Instance",
"ip": "HIDDEN",
"port": HIDDEN,
"client": "serveradmin",
"password": "SECURE"
});
Screenshots
Picture of the error in the console

According to your error, your second instance is not sending the correct login:
error id=520 msg=invalid\sloginname\sor\spassword
The additional errors displayed are due to your code not handling errors correctly.
For example:
socket.on("connect", function() {
...
if(err === null) {
if(err.id === 3329) {
If err === null, why would err have an element id?
Most likely this is code error, and you actually meant err !== null
$this.SendCommand("serverlist", null, function(err, response, rawResponse){
console.log(response);
if(response[0] === undefined) {
This error triggers because the (above) previous error was not caught.
At this point, the client is not logged in (authorized).
So when the serverlist command is sent, it riggers another error.
This additional error is also no handled, instead response is immediately used.

Need Help Making Java Script Discord Music Bot

I have tried to use this code to make a discord music bot but i am getting error telling me i need ffmpeg, but how would I implement it into this code?
index.js file
const Discord = require('discord.js');
const bot = new Discord.Client();
const config = require("./config.json");
const ytdl = require('ytdl-core');
var youtube = require('./youtube.js');
var ytAudioQueue = [];
var dispatcher = null;
bot.on('message', function(message) {
var messageParts = message.content.split(' ');
var command = messageParts[0].toLowerCase();
var parameters = messageParts.splice(1, messageParts.length);
switch (command) {
case "-join" :
message.reply("Attempting to join channel " + parameters[0]);
JoinCommand(parameters[0], message);
break;
case "-play" :
PlayCommand(parameters.join(" "), message);
break;
case "-playqueue":
PlayQueueCommand(message);
break;
}
});
function PlayCommand(searchTerm) {
if(bot.voiceConnections.array().length == 0) {
var defaultVoiceChannel = bot.channels.find(val => val.type === 'voice').name;
JoinCommand(defaultVoiceChannel);
}
youtube.search(searchTerm, QueueYtAudioStream);
}
function PlayQueueCommand(message) {
var queueString = "";
for(var x = 0; x < ytAudioQueue.length; x++) {
queueString += ytAudioQueue[x].videoName + ", ";
}
queueString = queueString.substring(0, queueString.length - 2);
message.reply(queueString);
}
function JoinCommand(ChannelName) {
var voiceChannel = GetChannelByName(ChannelName);
if (voiceChannel) {
voiceChannel.join();
console.log("Joined " + voiceChannel.name);
}
return voiceChannel;
}
/* Helper Methods */
function GetChannelByName(name) {
var channel = bot.channels.find(val => val.name === name);
return channel;
}
function QueueYtAudioStream(videoId, videoName) {
var streamUrl = youtube.watchVideoUrl + videoId;
if (!ytAudioQueue.length) {
ytAudioQueue.push(
{
'streamUrl' : streamUrl,
'videoName' : videoName
}
);
console.log('Queued audio ' + videoName);
PlayStream(ytAudioQueue[0].streamUrl);
}
else {
ytAudioQueue.push(
{
'streamUrl' : streamUrl,
'videoName' : videoName
}
);
}
console.log("Queued audio " + videoName);
}
function PlayStream(streamUrl) {
const streamOptions = {seek: 0, volume: 1};
if (streamUrl) {
const stream = ytdl(streamUrl, {filter: 'audioonly'});
if (dispatcher == null) {
var voiceConnection = bot.voiceConnections.first();
if(voiceConnection) {
console.log("Now Playing " + ytAudioQueue[0].videoname);
dispatcher = bot.voiceConnections.first().playStream(stream, streamOptions);
dispatcher.on('end', () => {
dispatcher = null;
PlayNextStreamInQueue();
});
dispatcher.on('error', (err) => {
console.log(err);
});
}
} else {
dispatcher = bot.voiceConnections.first().playStream(stream, streamOptions);
}
}
}
function PlayNextStreamInQueue() {
ytAudioQueue.splice(0, 1);
if (ytAudioQueue.length != 0) {
console.log("now Playing " + ytAudioQueue[0].videoName);
PlayStream(ytAudioQueue[0].streamUrl);
}
}
bot.login(config.token);
youtube.js file
var request = require('superagent');
const API_KEY = "My API KEY";
const WATCH_VIDEO_URL = "https://www.youtube.com/watch?v=";
exports.watchVideoUrl = WATCH_VIDEO_URL;
exports.search = function search(searchKeywords, callback) {
var requestUrl = 'https://www.googleapis.com/youtube/v3/search' + '?part=snippet&q=' + escape(searchKeywords) + '&key=' + API_KEY;
request(requestUrl, (error, response) => {
if (!error && response.statusCode == 200) {
var body = response.body;
if (body.items.length == 0) {
console.log("I Could Not Find Anything!");
return;
}
for (var item of body.items) {
if (item.id.kind == 'youtube#video') {
callback(item.id.videoId, item.snippet.title);
return;
}
}
} else {
console.log("Unexpected error!");
return;
}
});
return;
};
Error I am getting when I try to run code :
Joined General
C:\Discord Bot\node_modules\discord.js\src\client\voice\pcm\FfmpegConverterEngine.
js:80
throw new Error(
^
Error: FFMPEG was not found on your system, so audio cannot be played. Please make
sure FFMPEG is installed and in your PATH.

You need to download/extract FFMPEG and make it as your PATH/System variable[environment variable]
Make sure that you have it as your System variable like this :
The System Variable should named as 'FFMPEG' and should be directed to where the execution(.exe) file is. It should be in a folder called 'bin' in your FFMPEG folder.
You can google/search online on how to add a new System/PATH variable for your specific OS.

How can I check if ECC Key and Public Key are being passed through Js file?

I'm having a problem locating where my problem is. I'm using PubNub for realtime messaging and the example project is using ECC (elliptical curve cryptography) encrypted messaging.
Every thing in the file works(animation, channel presence, etc.) except for sending the message. Every time I hit send I get this message:
Here is my chat-app.js file:
(function() {
if (typeof(user) === 'undefined') {
return;
}
var output = document.getElementById('output'),
input = document.getElementById('input'),
picture = document.getElementById('picture'),
presence = document.getElementById('presence'),
action = document.getElementById('action'),
send = document.getElementById('send');
var channel = 'fun';
var keysCache = {};
var pubnub = PUBNUB.init({
subscribe_key: 'sub-c-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
publish_key: 'pub-c-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
uuid: user.name,
auth_key: user.gtoken,
ssl: true
});
function displayOutput(message) {
if(!message) return;
if(typeof(message.text) === 'undefined') return;
var html = '';
if ('userid' in message && message.userid in keysCache) {
var signature = message.signature;
delete message.signature;
var result = ecc.verify(keysCache[message.userid].publicKey, signature, JSON.stringify(message));
if(result) {
html = '<p><img src="'+ keysCache[message.userid].picture +'" class="avatar"><strong>' + keysCache[message.userid].name + '</strong><br><span>' + message.text + '</span></p>';
} else {
html = '<p><img src="images/troll.png" class="avatar"><strong></strong><br><em>A troll tried to spoof '+ keysCache[message.userid].name +' (but failed).</em></p>';
}
output.innerHTML = html + output.innerHTML;
} else {
var xhr = new XMLHttpRequest();
xhr.open('GET', '/user/' + message.userid, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4) {
var res = JSON.parse(xhr.responseText);
keysCache[message.userid] = {
'publicKey': res.publicKey,
'name': res.name,
'artist': res.artist,
'picture': res.picture,
'id': res.id
}
displayOutput(message);
}
};
xhr.send(null);
}
}
function getHistory() {
pubnub.history({
channel: channel,
count: 30,
callback: function(messages) {
messages[0].forEach(function(m){
displayOutput(m);
});
}
});
}
pubnub.subscribe({
channel: channel,
restore: true,
connect: getHistory,
disconnect: function(res){
console.log('disconnect called');
},
reconnect: function(res){
console.log('reconnecting to pubnub');
},
callback: function(m) {
displayOutput(m);
},
presence: function(m){
if(m.occupancy === 1) {
presence.textContent = m.occupancy + ' person online';
} else {
presence.textContent = m.occupancy + ' people online';
}
if((m.action === 'join') || (m.action === 'timeout') || (m.action === 'leave')){
var status = (m.action === 'join') ? 'joined' : 'left';
action.textContent = m.uuid + ' ' + status +' room';
action.classList.add(m.action);
action.classList.add('poof');
action.addEventListener('animationend', function(){action.className='';}, false);
}
}
});
function post() {
var safeText = input.value.replace(/\&/g, '&').replace( /</g, '<').replace(/>/g, '>');
var message = { text: safeText, userid: user.id };
var signature = ecc.sign(user.eccKey, JSON.stringify(message));
message['signature'] = signature;
pubnub.publish({
channel: channel,
message: message
});
input.value = '';
}
input.addEventListener('keyup', function(e) {
if(input.value === '') return;
(e.keyCode || e.charCode) === 13 && post();
}, false);
send.addEventListener('click', function(e) {
if(input.value === '') return;
post();
}, false);
})();
This error is coming from my ecc.js file
Uncaught TypeError: Cannot read property 'r' of undefined
However, I'm assuming the error is in the chat-app.js file because I didn't touch the ecc.js file. I got it from the project -- https://github.com/pubnub/auth-chat-demo
More info on ECC can be found here: https://github.com/jpillora/eccjs

According to your description, it looks like this line is giving you the error:
var signature = ecc.sign(user.eccKey, JSON.stringify(message));
So I am guessing you are not properly passing user.eccKey?
Do you have all the user data from oAuth (or any login auth)? or is the eccKey generated correctly upon the user sign-up?
Also, try include the non-minified version of ecc.js so you can track where the error is coming from more easily.
https://raw.githubusercontent.com/jpillora/eccjs/gh-pages/dist/0.3/ecc.js