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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Class Poco::Net::HTTPClientSession</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="language" content="en"/>
<meta name="date" content="2009-11-24"/>
<meta name="generator" content="PocoDoc"/>
<link rel="stylesheet" href="css/styles.css" type="text/css"/>
</head>
<body bgcolor="#ffffff" leftmargin="0" topmargin="0">
<div class="header">
<h1 class="namespace"><a href="Poco.Net.html" class="namespace">Poco::Net</a></h1>
<h1 class="symbol">class HTTPClientSession</h1>
</div>
<div class="body">
<p>
<b>Library:</b> Net<br />
<b>Package:</b> HTTPClient<br />
<b>Header:</b> Poco/Net/HTTPClientSession.h</p>
<h2>Description</h2>
<div class="description">
<p>This class implements the client-side of a HTTP session. </p>
<p>To send a HTTP request to a HTTP server, first instantiate a <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> object and specify the server's host name and port number. </p>
<p>Then create a <a href="Poco.Net.HTTPRequest.html" title="class Poco::Net::HTTPRequest">HTTPRequest</a> object, fill it accordingly, and pass it as argument to the sendRequst() method. </p>
<p><a href="Poco.Net.HTTPClientSession.html#12577" title="Poco::Net::HTTPClientSession::sendRequest()">sendRequest</a>() will return an output stream that can be used to send the request body, if there is any. </p>
<p>After you are done sending the request body, create a <a href="Poco.Net.HTTPResponse.html" title="class Poco::Net::HTTPResponse">HTTPResponse</a> object and pass it to <a href="Poco.Net.HTTPClientSession.html#12579" title="Poco::Net::HTTPClientSession::receiveResponse()">receiveResponse</a>(). </p>
<p>This will return an input stream that can be used to read the response body. </p>
<p>See <a href="http://www.ietf.org/rfc/rfc2616.txt" target="_blank">RFC 2616</a> &lt;<a href="http://www.faqs.org/rfcs/rfc2616.html" target="_blank">http://www.faqs.org/rfcs/rfc2616.html</a>&gt; for more information about the HTTP protocol. </p>
</div>
<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b><a href="Poco.Net.HTTPSession.html" title="class Poco::Net::HTTPSession">HTTPSession</a></p>
<p><b>All Base Classes: </b><a href="Poco.Net.HTTPSession.html" title="class Poco::Net::HTTPSession">HTTPSession</a></p>
<p><b>Known Derived Classes: </b><a href="Poco.Net.HTTPSClientSession.html" title="class Poco::Net::HTTPSClientSession">HTTPSClientSession</a></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Net.HTTPClientSession.html#12589" title="Poco::Net::HTTPClientSession::deleteRequestStream()">deleteRequestStream</a>, <a href="Poco.Net.HTTPClientSession.html#12588" title="Poco::Net::HTTPClientSession::deleteResponseStream()">deleteResponseStream</a>, <a href="Poco.Net.HTTPClientSession.html#12600" title="Poco::Net::HTTPClientSession::getExpectResponseBody()">getExpectResponseBody</a>, <a href="Poco.Net.HTTPClientSession.html#12561" title="Poco::Net::HTTPClientSession::getHost()">getHost</a>, <a href="Poco.Net.HTTPClientSession.html#12576" title="Poco::Net::HTTPClientSession::getKeepAliveTimeout()">getKeepAliveTimeout</a>, <a href="Poco.Net.HTTPClientSession.html#12564" title="Poco::Net::HTTPClientSession::getPort()">getPort</a>, <a href="Poco.Net.HTTPClientSession.html#12572" title="Poco::Net::HTTPClientSession::getProxyHost()">getProxyHost</a>, <a href="Poco.Net.HTTPClientSession.html#12573" title="Poco::Net::HTTPClientSession::getProxyPort()">getProxyPort</a>, <a href="Poco.Net.HTTPClientSession.html#12595" title="Poco::Net::HTTPClientSession::getRequestStream()">getRequestStream</a>, <a href="Poco.Net.HTTPClientSession.html#12594" title="Poco::Net::HTTPClientSession::getResponseStream()">getResponseStream</a>, <a href="Poco.Net.HTTPClientSession.html#12601" title="Poco::Net::HTTPClientSession::mustReconnect()">mustReconnect</a>, <a href="Poco.Net.HTTPClientSession.html#12587" title="Poco::Net::HTTPClientSession::proxyRequestPrefix()">proxyRequestPrefix</a>, <a href="Poco.Net.HTTPClientSession.html#12579" title="Poco::Net::HTTPClientSession::receiveResponse()">receiveResponse</a>, <a href="Poco.Net.HTTPClientSession.html#12583" title="Poco::Net::HTTPClientSession::reconnect()">reconnect</a>, <a href="Poco.Net.HTTPClientSession.html#12577" title="Poco::Net::HTTPClientSession::sendRequest()">sendRequest</a>, <a href="Poco.Net.HTTPClientSession.html#12598" title="Poco::Net::HTTPClientSession::setExpectResponseBody()">setExpectResponseBody</a>, <a href="Poco.Net.HTTPClientSession.html#12559" title="Poco::Net::HTTPClientSession::setHost()">setHost</a>, <a href="Poco.Net.HTTPClientSession.html#12574" title="Poco::Net::HTTPClientSession::setKeepAliveTimeout()">setKeepAliveTimeout</a>, <a href="Poco.Net.HTTPClientSession.html#12562" title="Poco::Net::HTTPClientSession::setPort()">setPort</a>, <a href="Poco.Net.HTTPClientSession.html#12565" title="Poco::Net::HTTPClientSession::setProxy()">setProxy</a>, <a href="Poco.Net.HTTPClientSession.html#12568" title="Poco::Net::HTTPClientSession::setProxyHost()">setProxyHost</a>, <a href="Poco.Net.HTTPClientSession.html#12570" title="Poco::Net::HTTPClientSession::setProxyPort()">setProxyPort</a>, <a href="Poco.Net.HTTPClientSession.html#12596" title="Poco::Net::HTTPClientSession::setReconnect()">setReconnect</a>, <a href="Poco.Net.HTTPClientSession.html#12592" title="Poco::Net::HTTPClientSession::setRequestStream()">setRequestStream</a>, <a href="Poco.Net.HTTPClientSession.html#12590" title="Poco::Net::HTTPClientSession::setResponseStream()">setResponseStream</a>, <a href="Poco.Net.HTTPClientSession.html#12584" title="Poco::Net::HTTPClientSession::write()">write</a></p>
<p><b>Inherited Functions: </b><a href="Poco.Net.HTTPSession.html#13169" title="Poco::Net::HTTPSession::abort()">abort</a>, <a href="Poco.Net.HTTPSession.html#13197" title="Poco::Net::HTTPSession::attachSocket()">attachSocket</a>, <a href="Poco.Net.HTTPSession.html#13192" title="Poco::Net::HTTPSession::buffered()">buffered</a>, <a href="Poco.Net.HTTPSession.html#13199" title="Poco::Net::HTTPSession::close()">close</a>, <a href="Poco.Net.HTTPSession.html#13195" title="Poco::Net::HTTPSession::connect()">connect</a>, <a href="Poco.Net.HTTPSession.html#13168" title="Poco::Net::HTTPSession::connected()">connected</a>, <a href="Poco.Net.HTTPSession.html#13173" title="Poco::Net::HTTPSession::detachSocket()">detachSocket</a>, <a href="Poco.Net.HTTPSession.html#13181" title="Poco::Net::HTTPSession::get()">get</a>, <a href="Poco.Net.HTTPSession.html#13164" title="Poco::Net::HTTPSession::getKeepAlive()">getKeepAlive</a>, <a href="Poco.Net.HTTPSession.html#13167" title="Poco::Net::HTTPSession::getTimeout()">getTimeout</a>, <a href="Poco.Net.HTTPSession.html#13170" title="Poco::Net::HTTPSession::networkException()">networkException</a>, <a href="Poco.Net.HTTPSession.html#13182" title="Poco::Net::HTTPSession::peek()">peek</a>, <a href="Poco.Net.HTTPSession.html#13183" title="Poco::Net::HTTPSession::read()">read</a>, <a href="Poco.Net.HTTPSession.html#13189" title="Poco::Net::HTTPSession::receive()">receive</a>, <a href="Poco.Net.HTTPSession.html#13194" title="Poco::Net::HTTPSession::refill()">refill</a>, <a href="Poco.Net.HTTPSession.html#13200" title="Poco::Net::HTTPSession::setException()">setException</a>, <a href="Poco.Net.HTTPSession.html#13162" title="Poco::Net::HTTPSession::setKeepAlive()">setKeepAlive</a>, <a href="Poco.Net.HTTPSession.html#13165" title="Poco::Net::HTTPSession::setTimeout()">setTimeout</a>, <a href="Poco.Net.HTTPSession.html#13193" title="Poco::Net::HTTPSession::socket()">socket</a>, <a href="Poco.Net.HTTPSession.html#13186" title="Poco::Net::HTTPSession::write()">write</a></p>
<h2>Enumerations</h2>
<h3><i>Anonymous</i> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<div class="description">
<p></p>
</div>
<p class="decl"><a name="12582">DEFAULT_KEEP_ALIVE_TIMEOUT</a> = 8</p>
<div class="description">
<p></p>
</div>
<h2>Constructors</h2>
<h3><a name="12550">HTTPClientSession</a></h3>
<p class="decl"><a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>();</p>
<div class="description">
<p>Creates an unconnected <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>. </p>
</div>
<h3><a name="12551">HTTPClientSession</a></h3>
<p class="decl">explicit <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>(<br />&nbsp;&nbsp;&nbsp;&nbsp;const <a href="Poco.Net.StreamSocket.html" title="class Poco::Net::StreamSocket">StreamSocket</a> &amp; socket<br />);</p>
<div class="description">
<p>Creates a <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> using the given socket. The socket must not be connected. The session takes ownership of the socket. </p>
</div>
<h3><a name="12553">HTTPClientSession</a></h3>
<p class="decl">explicit <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>(<br />&nbsp;&nbsp;&nbsp;&nbsp;const <a href="Poco.Net.SocketAddress.html" title="class Poco::Net::SocketAddress">SocketAddress</a> &amp; address<br />);</p>
<div class="description">
<p>Creates a <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> using the given address. </p>
</div>
<h3><a name="12555">HTTPClientSession</a></h3>
<p class="decl"><a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>(<br />&nbsp;&nbsp;&nbsp;&nbsp;const std::string &amp; host,<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> port = HTTPSession::HTTP_PORT<br />);</p>
<div class="description">
<p>Creates a <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> using the given host and port. </p>
</div>
<h2>Destructor</h2>
<h3><a name="12558">~HTTPClientSession</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual ~<a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a>();</p>
<div class="description">
<p>Destroys the <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> and closes the underlying socket. </p>
</div>
<h2>Member Functions</h2>
<h3><a name="12561">getHost</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const std::string &amp; getHost() const;</p>
<div class="description">
<p>Returns the host name of the target HTTP server. </p>
</div>
<h3><a name="12576">getKeepAliveTimeout</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const <a href="Poco.Timespan.html" title="class Poco::Timespan">Poco::Timespan</a> &amp; getKeepAliveTimeout() const;</p>
<div class="description">
<p>Returns the connection timeout for HTTP connections. </p>
</div>
<h3><a name="12564">getPort</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> getPort() const;</p>
<div class="description">
<p>Returns the port number of the target HTTP server. </p>
</div>
<h3><a name="12572">getProxyHost</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const std::string &amp; getProxyHost() const;</p>
<div class="description">
<p>Returns the proxy host name. </p>
</div>
<h3><a name="12573">getProxyPort</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> getProxyPort() const;</p>
<div class="description">
<p>Returns the proxy port number. </p>
</div>
<h3><a name="12579">receiveResponse</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual std::istream &amp; receiveResponse(<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.Net.HTTPResponse.html" title="class Poco::Net::HTTPResponse">HTTPResponse</a> &amp; response<br />);</p>
<div class="description">
<p>Receives the header for the response to the previous  HTTP request. </p>
<p>The returned input stream can be used to read the response body. The stream is valid until <a href="Poco.Net.HTTPClientSession.html#12577" title="Poco::Net::HTTPClientSession::sendRequest()">sendRequest</a>() is called or the session is destroyed. </p>
</div>
<h3><a name="12577">sendRequest</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual std::ostream &amp; sendRequest(<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.Net.HTTPRequest.html" title="class Poco::Net::HTTPRequest">HTTPRequest</a> &amp; request<br />);</p>
<div class="description">
<p>Sends the header for the given HTTP request to the server. </p>
<p>The <a href="Poco.Net.HTTPClientSession.html" title="class Poco::Net::HTTPClientSession">HTTPClientSession</a> will set the request's Host and Keep-Alive headers accordingly. </p>
<p>The returned output stream can be used to write the request body. The stream is valid until <a href="Poco.Net.HTTPClientSession.html#12579" title="Poco::Net::HTTPClientSession::receiveResponse()">receiveResponse</a>() is called or the session is destroyed. </p>
</div>
<h3><a name="12559">setHost</a></h3>
<p class="decl">void setHost(<br />&nbsp;&nbsp;&nbsp;&nbsp;const std::string &amp; host<br />);</p>
<div class="description">
<p>Sets the host name of the target HTTP server. </p>
<p>The host must not be changed once there is an open connection to the server. </p>
</div>
<h3><a name="12574">setKeepAliveTimeout</a></h3>
<p class="decl">void setKeepAliveTimeout(<br />&nbsp;&nbsp;&nbsp;&nbsp;const <a href="Poco.Timespan.html" title="class Poco::Timespan">Poco::Timespan</a> &amp; timeout<br />);</p>
<div class="description">
<p>Sets the connection timeout for HTTP connections. </p>
</div>
<h3><a name="12562">setPort</a></h3>
<p class="decl">void setPort(<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> port<br />);</p>
<div class="description">
<p>Sets the port number of the target HTTP server. </p>
<p>The port number must not be changed once there is an open connection to the server. </p>
</div>
<h3><a name="12565">setProxy</a></h3>
<p class="decl">void setProxy(<br />&nbsp;&nbsp;&nbsp;&nbsp;const std::string &amp; host,<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> port = HTTPSession::HTTP_PORT<br />);</p>
<div class="description">
<p>Sets the proxy host name and port number. </p>
</div>
<h3><a name="12568">setProxyHost</a></h3>
<p class="decl">void setProxyHost(<br />&nbsp;&nbsp;&nbsp;&nbsp;const std::string &amp; host<br />);</p>
<div class="description">
<p>Sets the host name of the proxy server. </p>
</div>
<h3><a name="12570">setProxyPort</a></h3>
<p class="decl">void setProxyPort(<br />&nbsp;&nbsp;&nbsp;&nbsp;<a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> port<br />);</p>
<div class="description">
<p>Sets the port number of the proxy server. </p>
</div>
<h3><a name="12589">deleteRequestStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void deleteRequestStream();</p>
<div class="description">
<p>Deletes the request stream and sets it to 0. </p>
</div>
<h3><a name="12588">deleteResponseStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void deleteResponseStream();</p>
<div class="description">
<p>Deletes the response stream and sets it to 0. </p>
</div>
<h3><a name="12600">getExpectResponseBody</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">bool getExpectResponseBody() const;</p>
<div class="description">
<p>Returns _expectResponseBody. </p>
</div>
<h3><a name="12595">getRequestStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::ostream * getRequestStream() const;</p>
<div class="description">
<p>Returns the currently set request stream. Can return 0. </p>
</div>
<h3><a name="12594">getResponseStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::istream * getResponseStream() const;</p>
<div class="description">
<p>Returns the currently set response stream. Can return 0. </p>
</div>
<h3><a name="12601">mustReconnect</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">bool mustReconnect() const;</p>
<div class="description">
<p>Checks if we can reuse a persistent connection. </p>
</div>
<h3><a name="12587">proxyRequestPrefix</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual std::string proxyRequestPrefix() const;</p>
<div class="description">
<p>Returns the prefix prepended to the <a href="Poco.URI.html" title="class Poco::URI">URI</a> for proxy requests (e.g., &quot;<a href="http://myhost.com"" target="_blank">http://myhost.com"</a>). </p>
</div>
<h3><a name="12583">reconnect</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void reconnect();</p>
<div class="description">
<p>Connects the underlying socket to the HTTP server. </p>
</div>
<h3><a name="12598">setExpectResponseBody</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void setExpectResponseBody(<br />&nbsp;&nbsp;&nbsp;&nbsp;bool expect<br />);</p>
<div class="description">
<p>Sets _expectResponseBody. </p>
</div>
<h3><a name="12596">setReconnect</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void setReconnect(<br />&nbsp;&nbsp;&nbsp;&nbsp;bool recon<br />);</p>
<div class="description">
<p>Sets _reconnect. </p>
</div>
<h3><a name="12592">setRequestStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void setRequestStream(<br />&nbsp;&nbsp;&nbsp;&nbsp;std::ostream * pRequestStream<br />);</p>
<div class="description">
<p>Sets the request stream if and only if _pRequestStream is 0. </p>
</div>
<h3><a name="12590">setResponseStream</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void setResponseStream(<br />&nbsp;&nbsp;&nbsp;&nbsp;std::istream * pRespStream<br />);</p>
<div class="description">
<p>Sets the response stream if and only if _pResponseStream is 0. </p>
</div>
<h3><a name="12584">write</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" />  <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">int write(<br />&nbsp;&nbsp;&nbsp;&nbsp;const char * buffer,<br />&nbsp;&nbsp;&nbsp;&nbsp;std::streamsize length<br />);</p>
<div class="description">
<p>Tries to re-connect if keep-alive is on. </p>
</div>
<div class="description"><p><b>See also:</b> <a href="Poco.Net.HTTPSession.html#13186" title="Poco::Net::HTTPSession::write()">Poco::Net::HTTPSession::write()</a></p></div>
<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright &copy; 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>

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