<?xml version="1.0" encoding="ascii"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>paramiko.SubsystemHandler</title> <link rel="stylesheet" href="epydoc.css" type="text/css" /> <script type="text/javascript" src="epydoc.js"></script> </head> <body bgcolor="white" text="black" link="blue" vlink="#204080" alink="#204080"> <!-- ==================== NAVIGATION BAR ==================== --> <table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0"> <tr valign="middle"> <!-- Home link --> <th> <a href="paramiko-module.html">Home</a> </th> <!-- Tree link --> <th> <a href="module-tree.html">Trees</a> </th> <!-- Index link --> <th> <a href="identifier-index.html">Indices</a> </th> <!-- Help link --> <th> <a href="help.html">Help</a> </th> <th class="navbar" width="100%"></th> </tr> </table> <table width="100%" cellpadding="0" cellspacing="0"> <tr valign="top"> <td width="100%"> <span class="breadcrumbs"> <a href="paramiko-module.html">Package paramiko</a> :: Class SubsystemHandler </span> </td> <td> <table cellpadding="0" cellspacing="0"> <!-- hide/show private --> <tr><td align="right"><span class="options" >[<a href="frames.html" target="_top">frames</a >] | <a href="paramiko.SubsystemHandler-class.html" target="_top">no frames</a>]</span></td></tr> </table> </td> </tr> </table> <!-- ==================== CLASS DESCRIPTION ==================== --> <h1 class="epydoc">Class SubsystemHandler</h1><p class="nomargin-top"><span class="codelink"><a href="paramiko-pysrc.html#SubsystemHandler">source code</a></span></p> <pre class="base-tree"> object --+ | threading._Verbose --+ | threading.Thread --+ | <strong class="uidshort">SubsystemHandler</strong> </pre> <dl><dt>Known Subclasses:</dt> <dd> <ul class="subclass-list"> <li><a href="paramiko.SFTPServer-class.html">SFTPServer</a></li> </ul> </dd></dl> <hr /> <p>Handler for a subsytem in server mode. If you create a subclass of this class and pass it to <a href="paramiko.Transport-class.html#set_subsystem_handler" class="link">Transport.set_subsystem_handler</a>, an object of this class will be created for each request for this subsystem. Each new object will be executed within its own new thread by calling <a href="paramiko.SubsystemHandler-class.html#start_subsystem" class="link">start_subsystem</a>. When that method completes, the channel is closed.</p> <p>For example, if you made a subclass <code>MP3Handler</code> and registered it as the handler for subsystem <code>"mp3"</code>, then whenever a client has successfully authenticated and requests subsytem <code>"mp3"</code>, an object of class <code>MP3Handler</code> will be created, and <a href="paramiko.SubsystemHandler-class.html#start_subsystem" class="link">start_subsystem</a> will be called on it from a new thread.</p> <!-- ==================== INSTANCE METHODS ==================== --> <a name="section-InstanceMethods"></a> <table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td align="left" colspan="2" class="table-header"> <span class="table-header">Instance Methods</span></td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="paramiko.SubsystemHandler-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>, <span class="summary-sig-arg">channel</span>, <span class="summary-sig-arg">name</span>, <span class="summary-sig-arg">server</span>)</span><br /> Create a new handler for a channel.</td> <td align="right" valign="top"> <span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="paramiko.SubsystemHandler-class.html#finish_subsystem" class="summary-sig-name">finish_subsystem</a>(<span class="summary-sig-arg">self</span>)</span><br /> Perform any cleanup at the end of a subsystem.</td> <td align="right" valign="top"> <span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"><a href="paramiko.ServerInterface-class.html" class="link">ServerInterface</a></span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a name="get_server"></a><span class="summary-sig-name">get_server</span>(<span class="summary-sig-arg">self</span>)</span><br /> Return the <a href="paramiko.ServerInterface-class.html" class="link">ServerInterface</a> object associated with this channel and subsystem.</td> <td align="right" valign="top"> <span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td width="15%" align="right" valign="top" class="summary"> <span class="summary-type"> </span> </td><td class="summary"> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr> <td><span class="summary-sig"><a href="paramiko.SubsystemHandler-class.html#start_subsystem" class="summary-sig-name">start_subsystem</a>(<span class="summary-sig-arg">self</span>, <span class="summary-sig-arg">name</span>, <span class="summary-sig-arg">transport</span>, <span class="summary-sig-arg">channel</span>)</span><br /> Process an ssh subsystem in server mode.</td> <td align="right" valign="top"> <span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr> </table> </td> </tr> <tr> <td colspan="2" class="summary"> <p class="indent-wrapped-lines"><b>Inherited from <code>threading.Thread</code></b>: <code>__repr__</code>, <code>getName</code>, <code>isAlive</code>, <code>isDaemon</code>, <code>is_alive</code>, <code>join</code>, <code>run</code>, <code>setDaemon</code>, <code>setName</code>, <code>start</code> </p> <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>: <code>__delattr__</code>, <code>__format__</code>, <code>__getattribute__</code>, <code>__hash__</code>, <code>__new__</code>, <code>__reduce__</code>, <code>__reduce_ex__</code>, <code>__setattr__</code>, <code>__sizeof__</code>, <code>__str__</code>, <code>__subclasshook__</code> </p> </td> </tr> </table> <!-- ==================== PROPERTIES ==================== --> <a name="section-Properties"></a> <table class="summary" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td align="left" colspan="2" class="table-header"> <span class="table-header">Properties</span></td> </tr> <tr> <td colspan="2" class="summary"> <p class="indent-wrapped-lines"><b>Inherited from <code>threading.Thread</code></b>: <code>daemon</code>, <code>ident</code>, <code>name</code> </p> <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>: <code>__class__</code> </p> </td> </tr> </table> <!-- ==================== METHOD DETAILS ==================== --> <a name="section-MethodDetails"></a> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr bgcolor="#70b0f0" class="table-header"> <td align="left" colspan="2" class="table-header"> <span class="table-header">Method Details</span></td> </tr> </table> <a name="__init__"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>, <span class="sig-arg">channel</span>, <span class="sig-arg">name</span>, <span class="sig-arg">server</span>)</span> <br /><em class="fname">(Constructor)</em> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr></table> <p>Create a new handler for a channel. This is used by <a href="paramiko.ServerInterface-class.html" class="link">ServerInterface</a> to start up a new handler when a channel requests this subsystem. You don't need to override this method, but if you do, be sure to pass the <code>channel</code> and <code>name</code> parameters through to the original <code>__init__</code> method here.</p> <dl class="fields"> <dt>Parameters:</dt> <dd><ul class="nomargin-top"> <li><strong class="pname"><code>channel</code></strong> (<a href="paramiko.Channel-class.html" class="link">Channel</a>) - the channel associated with this subsystem request.</li> <li><strong class="pname"><code>name</code></strong> (str) - name of the requested subsystem.</li> <li><strong class="pname"><code>server</code></strong> (<a href="paramiko.ServerInterface-class.html" class="link">ServerInterface</a>) - the server object for the session that started this subsystem</li> </ul></dd> <dt>Overrides: object.__init__ </dt> </dl> </td></tr></table> </div> <a name="finish_subsystem"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">finish_subsystem</span>(<span class="sig-arg">self</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr></table> <p>Perform any cleanup at the end of a subsystem. The default implementation just closes the channel.</p> <dl class="fields"> </dl> <div class="fields"> <p><strong>Since:</strong> 1.1 </p> </div></td></tr></table> </div> <a name="start_subsystem"></a> <div> <table class="details" border="1" cellpadding="3" cellspacing="0" width="100%" bgcolor="white"> <tr><td> <table width="100%" cellpadding="0" cellspacing="0" border="0"> <tr valign="top"><td> <h3 class="epydoc"><span class="sig"><span class="sig-name">start_subsystem</span>(<span class="sig-arg">self</span>, <span class="sig-arg">name</span>, <span class="sig-arg">transport</span>, <span class="sig-arg">channel</span>)</span> </h3> </td><td align="right" valign="top" ><span class="codelink"><a href="paramiko.server-pysrc.html">source code</a></span> </td> </tr></table> <p>Process an ssh subsystem in server mode. This method is called on a new object (and in a new thread) for each subsystem request. It is assumed that all subsystem logic will take place here, and when the subsystem is finished, this method will return. After this method returns, the channel is closed.</p> <p>The combination of <code>transport</code> and <code>channel</code> are unique; this handler corresponds to exactly one <a href="paramiko.Channel-class.html" class="link">Channel</a> on one <a href="paramiko.Transport-class.html" class="link">Transport</a>.</p> <dl class="fields"> <dt>Parameters:</dt> <dd><ul class="nomargin-top"> <li><strong class="pname"><code>name</code></strong> (str) - name of the requested subsystem.</li> <li><strong class="pname"><code>transport</code></strong> (<a href="paramiko.Transport-class.html" class="link">Transport</a>) - the server-mode <a href="paramiko.Transport-class.html" class="link">Transport</a>.</li> <li><strong class="pname"><code>channel</code></strong> (<a href="paramiko.Channel-class.html" class="link">Channel</a>) - the channel associated with this subsystem request.</li> </ul></dd> </dl> <div class="fields"> <p><strong>Note:</strong> It is the responsibility of this method to exit if the underlying <a href="paramiko.Transport-class.html" class="link">Transport</a> is closed. This can be done by checking <a href="paramiko.Transport-class.html#is_active" class="link">Transport.is_active</a> or noticing an EOF on the <a href="paramiko.Channel-class.html" class="link">Channel</a>. If this method loops forever without checking for this case, your python interpreter may refuse to exit because this thread will still be running. </p> </div></td></tr></table> </div> <br /> <!-- ==================== NAVIGATION BAR ==================== --> <table class="navbar" border="0" width="100%" cellpadding="0" bgcolor="#a0c0ff" cellspacing="0"> <tr valign="middle"> <!-- Home link --> <th> <a href="paramiko-module.html">Home</a> </th> <!-- Tree link --> <th> <a href="module-tree.html">Trees</a> </th> <!-- Index link --> <th> <a href="identifier-index.html">Indices</a> </th> <!-- Help link --> <th> <a href="help.html">Help</a> </th> <th class="navbar" width="100%"></th> </tr> </table> <table border="0" cellpadding="0" cellspacing="0" width="100%%"> <tr> <td align="left" class="footer"> Generated by Epydoc 3.0.1 on Sun Nov 1 22:14:17 2009 </td> <td align="right" class="footer"> <a target="mainFrame" href="http://epydoc.sourceforge.net" >http://epydoc.sourceforge.net</a> </td> </tr> </table> <script type="text/javascript"> <!-- // Private objects are initially displayed (because if // javascript is turned off then we want them to be // visible); but by default, we want to hide them. 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