Quickstart

Package uses listener authentication mechanism to provide handy interface for collecting detailed connection data and performing following actions with listeners:

Accept connection
Accept & move listener to another mounpoint
Decline connection
Require credentials
Redirect to given url

To start run npm install icecast-auth command, configure icecast to enable listener authentication and create executable file with following content. It will log listener's information & accept connections:

#!/usr/bin/nodejs
var fs = require('fs');
var AuthHandler = require('icecast-auth');

var handler = new AuthHandler();
handler.on('connection', function(data) {

  // Log data somewhere
  fs.appendFileSync('/tmp/icecast-auth.log', JSON.stringify(data, null, ' '));

  // Accept connection
  handler.accept();
});

Events

connection

Is emitted when data parsing is finished (received empty line from icecast). Provides following parameters:

Parameter	Type	Description
`mountpoint`	String	Requested mount name
`user`	String	Basic HTTP auth provided username
`pass`	String	Basic HTTP auth povided password
`ip`	String	Listener's ip address
`agent`	String	Listener's user agent
`referer`	String	Url, where listener came from

Methods

accept

Accepts listener connection. Allows to specify mount, where user should be moved instead of requested one (icecast internal redirect will be used, HTTP redirect is not performed in this case).

Parameter	Type	Required	Description
`mount`	String	No	Mount, where user should be moved

// Accept user to requested mount
handler.on('connection', function(data) {
  handler.accept();
});

// Accept user to another mount
handler.on('connection', function(data) {
  handler.accept('/other-mount');
});

requireCredentials

Requires listener to perform basic HTTP authentication (401 HTTP request).

// Only users with "user" login and "secret" password will be allowed to stream
handler.on('connection', function(data) {
  if (data.user !== 'user' && password !== 'secret') {
    handler.requireCredentials();
  } else {
    handler.accept();
  }
});

redirect

Performs HTTP redirect to specified url.

Parameter	Type	Required	Description
`url`	String	Yes	Url, where listener should be redirected

handler.on('connection', function(data) {
  handler.redirect('http://example.com/');
});

decline

Declines listener with 403 HTTP code. Custom message can be specified.

Parameter	Type	Required	Description
`message`	String	No	Message, that will be sent to user, defaults to `Forbidden`

handler.on('connection', function(data) {
  handler.decline('You shall not pass!');
});

Icecast configuration

To enable icecast listener command-script authentication it is necessary to add following code in mount section for required mounts in your icecast configuration file:

<authentication type="command">
  <option name="listener_add" value="/path/to/your/script.js"/> 
  <option name="handlers" value="1"/> 
</authentication>

It is also possible to add authentication handler using wildcards, but there is a trick: by default icecast executes authentication handler for all requests. To use authentication handler only for mountpoints use following snippet:

<mount>
  <mount-name>/*.xml</mount-name>
</mount>      
<mount>
  <mount-name>/*.xsl</mount-name>
</mount>        
<mount>
  <mount-name>/*.html</mount-name>
</mount>    
<mount>
  <mount-name>/*.css</mount-name>
</mount>    
<mount>
  <mount-name>/*.jpg</mount-name>
</mount>    
<mount>
  <mount-name>/*.png</mount-name>
</mount>    
<mount>
  <mount-name>/*.ico</mount-name>
</mount>    
<mount>
  <mount-name>/*.m3u</mount-name>
</mount>
<mount>
  <mount-name>/*</mount-name>
  <authentication type="command">
    <option name="listener_add" value="/path/to/your/script.js"/> 
    <option name="handlers" value="1"/> 
  </authentication>
</mount>

alvassin/nodejs-icecast-auth