I made a simple login functionality that stores the following array into the session:
$sessionData=[
'username'=>/*username of the loged in user*/,
'user_id'=>/*user id of the logedin user*/
];
And I wanted the authorized user to be able to be able to chat into the following chat page that gets served via Codeigniter:
<?php
$this->load->helper('url');
?>
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Messaging</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="<?=base_url('assets/css/bootstrap/bootstrap.min.css');?>" rel="stylesheet" >
<script src="<?=base_url('assets/js/jquery.min.js')?>"></script>
<script src="<?=base_url('assets/js/bootstrap.min.js')?>"></script>
<script src="<?=base_url('assets/js/socket.io.min.js')?>"></script>
<script>
$(function () {
var socket = io('http://localhost:3000');
$('form').submit(function(e){
e.preventDefault();
socket.emit('chat message', $('#m').val());
$('#m').val('');
});
socket.on('chat message', function(msg){
$('#messages').append($('<div class="col-xs-12">').text(msg));
});
});
</script>
</head>
<body>
<div id="messages" style="max-height:100%" class="container-fluid">
</div>
<div class="container-fluid">
<div class="col-xs-12">
<form action="" class="form-inline bg-success">
<div class="form-group">
<input id="m" type="text" class="form-control" autocomplete="off" />
</div>
<button class="btn btn-primary">Send</button>
</form>
</div>
</div>
</body>
As you can see it uses socker.io on a node.js server listening into port 3000. But I want to put some authentication into the socket.io server in order not to be able for 3rd party applications with unauthorized users to use it.
As I noticed as long as the websocket uses the same domain the codeigniter';s cookie gets passed on the node.js' socket.io. So I thought that I needed a middleware in order to get coceigniters session data from redis.
So in the first place I wanted to have a look on how the data gets stored on redis server so I connected via redis-cli --scan --pattern '*' command and I got the following results:
ci_session:uipchhk7lfc5vmodndljquqsbs2ru02d
ci_session:gvmio1esujbscbh8847olbn4hkg5897n
ci_session:iejok3chmv025keh5g52lj3lps701umj
But they do not seem in any usefull form. So I wanted to know:
What are these data above? How I will get the session information I want from the node.js application?
via Dimitrios Desyllas
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