<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/network/qhttp.cpp:331 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>TQHttpHeader Class</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQHttpHeader Class Reference<br><small>[<a href="network.html">network module</a>]</small></h1> <p>The TQHttpHeader class contains header information for HTTP. <a href="#details">More...</a> <p><tt>#include <<a href="qhttp-h.html">qhttp.h</a>></tt> <p>Inherited by <a href="qhttpresponseheader.html">TQHttpResponseHeader</a> and <a href="qhttprequestheader.html">TQHttpRequestHeader</a>. <p><a href="qhttpheader-members.html">List of all member functions.</a> <h2>Public Members</h2> <ul> <li class=fn><a href="#TQHttpHeader"><b>TQHttpHeader</b></a> ()</li> <li class=fn><a href="#TQHttpHeader-2"><b>TQHttpHeader</b></a> ( const TQHttpHeader & header )</li> <li class=fn><a href="#TQHttpHeader-3"><b>TQHttpHeader</b></a> ( const TQString & str )</li> <li class=fn>virtual <a href="#~TQHttpHeader"><b>~TQHttpHeader</b></a> ()</li> <li class=fn>TQHttpHeader & <a href="#operator-eq"><b>operator=</b></a> ( const TQHttpHeader & h )</li> <li class=fn>TQString <a href="#value"><b>value</b></a> ( const TQString & key ) const</li> <li class=fn>void <a href="#setValue"><b>setValue</b></a> ( const TQString & key, const TQString & value )</li> <li class=fn>void <a href="#removeValue"><b>removeValue</b></a> ( const TQString & key )</li> <li class=fn>TQStringList <a href="#keys"><b>keys</b></a> () const</li> <li class=fn>bool <a href="#hasKey"><b>hasKey</b></a> ( const TQString & key ) const</li> <li class=fn>bool <a href="#hasContentLength"><b>hasContentLength</b></a> () const</li> <li class=fn>uint <a href="#contentLength"><b>contentLength</b></a> () const</li> <li class=fn>void <a href="#setContentLength"><b>setContentLength</b></a> ( int len )</li> <li class=fn>bool <a href="#hasContentType"><b>hasContentType</b></a> () const</li> <li class=fn>TQString <a href="#contentType"><b>contentType</b></a> () const</li> <li class=fn>void <a href="#setContentType"><b>setContentType</b></a> ( const TQString & type )</li> <li class=fn>virtual TQString <a href="#toString"><b>toString</b></a> () const</li> <li class=fn>bool <a href="#isValid"><b>isValid</b></a> () const</li> <li class=fn>virtual int <a href="#majorVersion"><b>majorVersion</b></a> () const = 0</li> <li class=fn>virtual int <a href="#minorVersion"><b>minorVersion</b></a> () const = 0</li> </ul> <hr><a name="details"></a><h2>Detailed Description</h2> The TQHttpHeader class contains header information for HTTP. <p> <p> In most cases you should use the more specialized derivatives of this class, <a href="qhttpresponseheader.html">TQHttpResponseHeader</a> and <a href="qhttprequestheader.html">TQHttpRequestHeader</a>, rather than directly using TQHttpHeader. <p> TQHttpHeader provides the HTTP header fields. A HTTP header field consists of a name followed by a colon, a single space, and the field value. (See RFC 1945.) Field names are case-insensitive. A typical header field looks like this: <pre> content-type: text/html </pre> <p> In the API the header field name is called the "key" and the content is called the "value". You can get and set a header field's value by using its key with <a href="#value">value</a>() and <a href="#setValue">setValue</a>(), e.g. <pre> header.setValue( "content-type", "text/html" ); <a href="qstring.html">TQString</a> contentType = header.value( "content-type" ); </pre> <p> Some fields are so common that getters and setters are provided for them as a convenient alternative to using <a href="#value">value</a>() and <a href="#setValue">setValue</a>(), e.g. <a href="#contentLength">contentLength</a>() and <a href="#contentType">contentType</a>(), <a href="#setContentLength">setContentLength</a>() and <a href="#setContentType">setContentType</a>(). <p> Each header key has a <em>single</em> value associated with it. If you set the value for a key which already exists the previous value will be discarded. <p> <p>See also <a href="qhttprequestheader.html">TQHttpRequestHeader</a>, <a href="qhttpresponseheader.html">TQHttpResponseHeader</a>, and <a href="io.html">Input/Output and Networking</a>. <hr><h2>Member Function Documentation</h2> <h3 class=fn><a name="TQHttpHeader"></a>TQHttpHeader::TQHttpHeader () </h3> Constructs an empty HTTP header. <h3 class=fn><a name="TQHttpHeader-2"></a>TQHttpHeader::TQHttpHeader ( const <a href="qhttpheader.html">TQHttpHeader</a> & header ) </h3> Constructs a copy of <em>header</em>. <h3 class=fn><a name="TQHttpHeader-3"></a>TQHttpHeader::TQHttpHeader ( const <a href="qstring.html">TQString</a> & str ) </h3> Constructs a HTTP header for <em>str</em>. <p> This constructor parses the string <em>str</em> for header fields and adds this information. The <em>str</em> should consist of one or more "\r\n" delimited lines; each of these lines should have the format key, colon, space, value. <h3 class=fn><a name="~TQHttpHeader"></a>TQHttpHeader::~TQHttpHeader ()<tt> [virtual]</tt> </h3> Destructor. <h3 class=fn>uint <a name="contentLength"></a>TQHttpHeader::contentLength () const </h3> Returns the value of the special HTTP header field <tt>content-length</tt>. <p> <p>See also <a href="#setContentLength">setContentLength</a>() and <a href="#hasContentLength">hasContentLength</a>(). <h3 class=fn><a href="qstring.html">TQString</a> <a name="contentType"></a>TQHttpHeader::contentType () const </h3> Returns the value of the special HTTP header field <tt>content-type</tt>. <p> <p>See also <a href="#setContentType">setContentType</a>() and <a href="#hasContentType">hasContentType</a>(). <h3 class=fn>bool <a name="hasContentLength"></a>TQHttpHeader::hasContentLength () const </h3> Returns TRUE if the header has an entry for the special HTTP header field <tt>content-length</tt>; otherwise returns FALSE. <p> <p>See also <a href="#contentLength">contentLength</a>() and <a href="#setContentLength">setContentLength</a>(). <h3 class=fn>bool <a name="hasContentType"></a>TQHttpHeader::hasContentType () const </h3> Returns TRUE if the header has an entry for the the special HTTP header field <tt>content-type</tt>; otherwise returns FALSE. <p> <p>See also <a href="#contentType">contentType</a>() and <a href="#setContentType">setContentType</a>(). <h3 class=fn>bool <a name="hasKey"></a>TQHttpHeader::hasKey ( const <a href="qstring.html">TQString</a> & key ) const </h3> Returns TRUE if the HTTP header has an entry with the given <em>key</em>; otherwise returns FALSE. <p> <p>See also <a href="#value">value</a>(), <a href="#setValue">setValue</a>(), and <a href="#keys">keys</a>(). <h3 class=fn>bool <a name="isValid"></a>TQHttpHeader::isValid () const </h3> Returns TRUE if the HTTP header is valid; otherwise returns FALSE. <p> A TQHttpHeader is invalid if it was created by parsing a malformed string. <h3 class=fn><a href="qstringlist.html">TQStringList</a> <a name="keys"></a>TQHttpHeader::keys () const </h3> Returns a list of the keys in the HTTP header. <p> <p>See also <a href="#hasKey">hasKey</a>(). <h3 class=fn>int <a name="majorVersion"></a>TQHttpHeader::majorVersion () const<tt> [pure virtual]</tt> </h3> <p> Returns the major protocol-version of the HTTP header. <p>Reimplemented in <a href="qhttpresponseheader.html#majorVersion">TQHttpResponseHeader</a> and <a href="qhttprequestheader.html#majorVersion">TQHttpRequestHeader</a>. <h3 class=fn>int <a name="minorVersion"></a>TQHttpHeader::minorVersion () const<tt> [pure virtual]</tt> </h3> <p> Returns the minor protocol-version of the HTTP header. <p>Reimplemented in <a href="qhttpresponseheader.html#minorVersion">TQHttpResponseHeader</a> and <a href="qhttprequestheader.html#minorVersion">TQHttpRequestHeader</a>. <h3 class=fn><a href="qhttpheader.html">TQHttpHeader</a> & <a name="operator-eq"></a>TQHttpHeader::operator= ( const <a href="qhttpheader.html">TQHttpHeader</a> & h ) </h3> Assigns <em>h</em> and returns a reference to this http header. <h3 class=fn>void <a name="removeValue"></a>TQHttpHeader::removeValue ( const <a href="qstring.html">TQString</a> & key ) </h3> Removes the entry with the key <em>key</em> from the HTTP header. <p> <p>See also <a href="#value">value</a>() and <a href="#setValue">setValue</a>(). <h3 class=fn>void <a name="setContentLength"></a>TQHttpHeader::setContentLength ( int len ) </h3> Sets the value of the special HTTP header field <tt>content-length</tt> to <em>len</em>. <p> <p>See also <a href="#contentLength">contentLength</a>() and <a href="#hasContentLength">hasContentLength</a>(). <h3 class=fn>void <a name="setContentType"></a>TQHttpHeader::setContentType ( const <a href="qstring.html">TQString</a> & type ) </h3> Sets the value of the special HTTP header field <tt>content-type</tt> to <em>type</em>. <p> <p>See also <a href="#contentType">contentType</a>() and <a href="#hasContentType">hasContentType</a>(). <p>Example: <a href="archivesearch-example.html#x475">network/archivesearch/archivedialog.ui.h</a>. <h3 class=fn>void <a name="setValue"></a>TQHttpHeader::setValue ( const <a href="qstring.html">TQString</a> & key, const <a href="qstring.html">TQString</a> & value ) </h3> Sets the value of the entry with the <em>key</em> to <em>value</em>. <p> If no entry with <em>key</em> exists, a new entry with the given <em>key</em> and <em>value</em> is created. If an entry with the <em>key</em> already exists, its value is discarded and replaced with the given <em>value</em>. <p> <p>See also <a href="#value">value</a>(), <a href="#hasKey">hasKey</a>(), and <a href="#removeValue">removeValue</a>(). <p>Example: <a href="archivesearch-example.html#x476">network/archivesearch/archivedialog.ui.h</a>. <h3 class=fn><a href="qstring.html">TQString</a> <a name="toString"></a>TQHttpHeader::toString () const<tt> [virtual]</tt> </h3> Returns a string representation of the HTTP header. <p> The string is suitable for use by the constructor that takes a <a href="qstring.html">TQString</a>. It consists of lines with the format: key, colon, space, value, "\r\n". <h3 class=fn><a href="qstring.html">TQString</a> <a name="value"></a>TQHttpHeader::value ( const <a href="qstring.html">TQString</a> & key ) const </h3> Returns the value for the entry with the given <em>key</em>. If no entry has this <em>key</em>, an empty string is returned. <p> <p>See also <a href="#setValue">setValue</a>(), <a href="#removeValue">removeValue</a>(), <a href="#hasKey">hasKey</a>(), and <a href="#keys">keys</a>(). <!-- eof --> <hr><p> This file is part of the <a href="index.html">TQt toolkit</a>. Copyright © 1995-2007 <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>TQt 3.3.8</div> </table></div></address></body> </html>