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<html><head>
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<title>Chapter 13. Security</title><link rel="stylesheet" href="html.css" type="text/css"><meta name="generator" content="DocBook XSL-NS Stylesheets V1.74.0"><link rel="home" href="index.html" title="Red5 - Reference Documentation"><link rel="up" href="red5-core-technologies.html" title="Part II. Red5 Core Technologies"><link rel="prev" href="CustomizeStreamPaths.html" title="Chapter 12. Customize Stream Paths"><link rel="next" href="ScriptingImplementations.html" title="Chapter 14. Scripting Implementations"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" style="background-color:white;border:none;height:73px;border:1px solid black;"><a style="border:none;" href="http://osflash.org/red5" title="Red5 Open Source Flash Server"><img style="border:none;" src="images/red5-banner.png"></img></a><a style="border:none;" href="http://osflash.org/red5" title="Red5 Open Source Flash Server"><img style="border:none;position:absolute;padding-top:5px;right:42px;" src="images/red5-banner-logo.png"></img></a></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="Security"></a>Chapter 13. Security</h2></div></div></div><p>This document describes the Red5 API that was introduced in version 0.6 to protect access
to streams and/or shared objects similar to what the properties Client.readAccess and
Client.writeAccess provide in the Macromedia Flash Communication Server / Flash Media
Server 2. </p><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="SecurityStreamSecurity"></a>13.1. Stream Security</h2></div></div></div><p>Read (playback) and write (publishing/recording) access to streams is protected separately
in Red5. </p><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="SecurityStreamplaybacksecurity"></a>13.1.1. Stream playback security</h3></div></div></div><p>For applications that want to limit the playback of streams per user or only want to provide
access to streams with a given name, the interface IStreamPlaybackSecurity
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPlaybackSecurity.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPlaybackSecurity.html</a> is
available in Red5.
</p><p>It can be implemented by any object and registered in the ApplicationAdapter
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/adapter/ApplicationAdapter.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/adapter/ApplicationAdapter.html</a> . An arbitrary
number of stream security handlers is supported per application. If at least one of the
handlers denies access to the stream, the client receives an error NetStream.Failed with a
description field giving a corresponding error message.
</p><p>An example handler that only allows access to streams that have a name starting with
liveStream is described below:</p><pre class="programlisting">
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">import</font> org.red5.server.api.IScope;
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">import</font> org.red5.server.api.stream.IStreamPlaybackSecurity;
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">public</font> <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">class</font> NamePlaybackSecurity <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">implements</font> IStreamPlaybackSecurity {
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">public</font> <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">boolean</font> isPlaybackAllowed(IScope scope, String name, <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">int</font> start,
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">int</font> length, <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">boolean</font> flushPlaylist) {
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">if</font> (!name.startswith(<b class="hl-string"><i style="color:red">"liveStream"</i></b>)) {
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">return</font> false;
} <font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">else</font> {
<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">return</font> true;
}
};
}
</pre><p>To register this handler in the application, add the following code in the appStart method: </p><pre class="programlisting">
registerStreamPlaybackSecurity(<font xmlns="http://www.w3.org/TR/xhtml1/transitional" font-weight="bold" color="blue">new</font> NamePlaybackSecurity());
</pre><p>Red5 includes a sample security handler that denies all access to streams
(DenyAllStreamAccess
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/api/stream/support/DenyAllStreamAccess.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/api/stream/support/DenyAllStreamAccess.html</a>).
</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="SecurityStreampublishingsecurity"></a>13.1.2. Stream publishing security</h3></div></div></div><p>In most applications that allow the user to publish and/or record streams, this access must
be limited to prevent the server from being misused. Therefore, Red5 provides the interface
IStreamPublishSecurity
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPublishSecurity.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPublishSecurity.html</a> to deny publishing of certain streams.
</p><p>Similar to IStreamPlaybackSecurity
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPlaybackSecurity.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/api/stream/IStreamPlaybackSecurity.html</a>, it can be implemented by any object and
registered in the ApplicationAdapter
<a class="link" href="http://dl.fancycode.com/red5/api/org/red5/server/adapter/ApplicationAdapter.html" target="_top">http://dl.fancycode.com/red5/api/org/red5/server/adapter/ApplicationAdapter.html</a>. If one of the registered handlers denies access, the client
receives an error NetStream.Failed with a description field giving a corresponding error
message.
</p><p>An example handler that only allows authenticated connections to publish a live stream
starting with liveStream and deny all other access is described below:</p></div></div></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="CustomizeStreamPaths.html">Prev</a> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right"> <a accesskey="n" href="ScriptingImplementations.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 12. Customize Stream Paths </td><td width="20%" align="center"><span style="color:white;font-size:90%;"><a href="http://osflash.org/red5" title="Red5">Red5 Open Source Flash Server</a></span></td><td width="40%" align="right" valign="top"> Chapter 14. Scripting Implementations</td></tr></table></div></body></html>
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