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<div class="title">httpfilter.cc</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> This file is part of the KDE libraries</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (c) 2002 Waldo Bastian <bastian@kde.org></span>
<a name="l00004"></a>00004 <span class="comment"> </span>
<a name="l00005"></a>00005 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> License version 2 as published by the Free Software Foundation.</span>
<a name="l00008"></a>00008 <span class="comment"> </span>
<a name="l00009"></a>00009 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00012"></a>00012 <span class="comment"> Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"> </span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00016"></a>00016 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include <kio/global.h></span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <klocale.h></span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include "httpfilter.h"</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 HTTPFilterBase::HTTPFilterBase()
<a name="l00027"></a>00027 : last(0)
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029 }
<a name="l00030"></a>00030
<a name="l00031"></a>00031 HTTPFilterBase::~HTTPFilterBase()
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <span class="keyword">delete</span> last;
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keywordtype">void</span>
<a name="l00037"></a>00037 HTTPFilterBase::chain(HTTPFilterBase *previous)
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 last = previous;
<a name="l00040"></a>00040 connect(last, SIGNAL(output(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)),
<a name="l00041"></a>00041 <span class="keyword">this</span>, SLOT(slotInput(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)));
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a>00044 HTTPFilterChain::HTTPFilterChain()
<a name="l00045"></a>00045 : first(0)
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordtype">void</span>
<a name="l00050"></a>00050 HTTPFilterChain::addFilter(HTTPFilterBase *filter)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 <span class="keywordflow">if</span> (!last)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 first = filter;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="keywordflow">else</span>
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 disconnect(last, SIGNAL(output(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)), 0, 0);
<a name="l00059"></a>00059 filter->chain(last);
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 last = filter;
<a name="l00062"></a>00062 connect(filter, SIGNAL(output(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)),
<a name="l00063"></a>00063 <span class="keyword">this</span>, SIGNAL(output(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)));
<a name="l00064"></a>00064 connect(filter, SIGNAL(error(<span class="keywordtype">int</span>, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &)),
<a name="l00065"></a>00065 <span class="keyword">this</span>, SIGNAL(error(<span class="keywordtype">int</span>, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &)));
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keywordtype">void</span>
<a name="l00069"></a>00069 HTTPFilterChain::slotInput(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &d)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <span class="keywordflow">if</span> (first)
<a name="l00072"></a>00072 first->slotInput(d);
<a name="l00073"></a>00073 <span class="keywordflow">else</span>
<a name="l00074"></a>00074 emit output(d);
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a>00077 HTTPFilterMD5::HTTPFilterMD5()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <a class="codeRef" href="qstring.html">QString</a>
<a name="l00082"></a>00082 HTTPFilterMD5::md5()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">return</span> <a class="codeRef" href="qstring.html#fromLatin1">QString::fromLatin1</a>(context.base64Digest());
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordtype">void</span>
<a name="l00088"></a>00088 HTTPFilterMD5::slotInput(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &d)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 context.update(d);
<a name="l00091"></a>00091 emit output(d);
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094
<a name="l00095"></a>00095 HTTPFilterGZip::HTTPFilterGZip()
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span> bHasHeader = <span class="keyword">false</span>;
<a name="l00099"></a>00099 bHasFinished = <span class="keyword">false</span>;
<a name="l00100"></a>00100 bPlainText = <span class="keyword">false</span>;
<a name="l00101"></a>00101 bEatTrailer = <span class="keyword">false</span>;
<a name="l00102"></a>00102 bEof = <span class="keyword">false</span>;
<a name="l00103"></a>00103 zstr.next_in = (Bytef *) Z_NULL;
<a name="l00104"></a>00104 zstr.avail_in = 0;
<a name="l00105"></a>00105 zstr.zalloc = Z_NULL;
<a name="l00106"></a>00106 zstr.zfree = Z_NULL;
<a name="l00107"></a>00107 zstr.opaque = Z_NULL;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 inflateInit2(&zstr, -MAX_WBITS);
<a name="l00110"></a>00110
<a name="l00111"></a>00111 iTrailer = 8;
<a name="l00112"></a>00112 <span class="preprocessor">#endif</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span>}
<a name="l00114"></a>00114
<a name="l00115"></a>00115 HTTPFilterGZip::~HTTPFilterGZip()
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span> inflateEnd(&zstr);
<a name="l00119"></a>00119 <span class="preprocessor">#endif</span>
<a name="l00120"></a>00120 <span class="preprocessor"></span>
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">/* The get_byte() and checkHeader() functions are modified version from */</span>
<a name="l00124"></a>00124 <span class="comment">/* the correpsonding functions that can be found in zlib, the following */</span>
<a name="l00125"></a>00125 <span class="comment">/* copyright notice applies to these functions: */</span>
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="comment">/* zlib.h -- interface of the 'zlib' general purpose compression library</span>
<a name="l00128"></a>00128 <span class="comment"> version 1.1.3, July 9th, 1998</span>
<a name="l00129"></a>00129 <span class="comment"></span>
<a name="l00130"></a>00130 <span class="comment"> Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler</span>
<a name="l00131"></a>00131 <span class="comment"></span>
<a name="l00132"></a>00132 <span class="comment"> This software is provided 'as-is', without any express or implied</span>
<a name="l00133"></a>00133 <span class="comment"> warranty. In no event will the authors be held liable for any damages</span>
<a name="l00134"></a>00134 <span class="comment"> arising from the use of this software.</span>
<a name="l00135"></a>00135 <span class="comment"></span>
<a name="l00136"></a>00136 <span class="comment"> Permission is granted to anyone to use this software for any purpose,</span>
<a name="l00137"></a>00137 <span class="comment"> including commercial applications, and to alter it and redistribute it</span>
<a name="l00138"></a>00138 <span class="comment"> freely, subject to the following restrictions:</span>
<a name="l00139"></a>00139 <span class="comment"></span>
<a name="l00140"></a>00140 <span class="comment"> 1. The origin of this software must not be misrepresented; you must not</span>
<a name="l00141"></a>00141 <span class="comment"> claim that you wrote the original software. If you use this software</span>
<a name="l00142"></a>00142 <span class="comment"> in a product, an acknowledgment in the product documentation would be</span>
<a name="l00143"></a>00143 <span class="comment"> appreciated but is not required.</span>
<a name="l00144"></a>00144 <span class="comment"> 2. Altered source versions must be plainly marked as such, and must not be</span>
<a name="l00145"></a>00145 <span class="comment"> misrepresented as being the original software.</span>
<a name="l00146"></a>00146 <span class="comment"> 3. This notice may not be removed or altered from any source distribution.</span>
<a name="l00147"></a>00147 <span class="comment"></span>
<a name="l00148"></a>00148 <span class="comment"> Jean-loup Gailly Mark Adler</span>
<a name="l00149"></a>00149 <span class="comment"> jloup@gzip.org madler@alumni.caltech.edu</span>
<a name="l00150"></a>00150 <span class="comment"></span>
<a name="l00151"></a>00151 <span class="comment"></span>
<a name="l00152"></a>00152 <span class="comment"> The data format used by the zlib library is described by RFCs (Request for</span>
<a name="l00153"></a>00153 <span class="comment"> Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt</span>
<a name="l00154"></a>00154 <span class="comment"> (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).</span>
<a name="l00155"></a>00155 <span class="comment">*/</span>
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keywordtype">int</span>
<a name="l00158"></a>00158 HTTPFilterGZip::get_byte()
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00161"></a>00161 <span class="preprocessor"></span> <span class="keywordflow">if</span> (bEof) <span class="keywordflow">return</span> EOF;
<a name="l00162"></a>00162 <span class="keywordflow">if</span> (zstr.avail_in == 0)
<a name="l00163"></a>00163 {
<a name="l00164"></a>00164 bEof = <span class="keyword">true</span>;
<a name="l00165"></a>00165 <span class="keywordflow">return</span> EOF;
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167 zstr.avail_in--;
<a name="l00168"></a>00168 zstr.total_in++;
<a name="l00169"></a>00169 <span class="keywordflow">return</span> *(zstr.next_in)++;
<a name="l00170"></a>00170 <span class="preprocessor">#else </span>
<a name="l00171"></a>00171 <span class="preprocessor"></span> <span class="keywordflow">return</span> 0;
<a name="l00172"></a>00172 <span class="preprocessor">#endif</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span>}
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00176"></a>00176 <span class="preprocessor"></span>
<a name="l00177"></a>00177 <span class="keyword">static</span> <span class="keywordtype">int</span> gz_magic[2] = {0x1f, 0x8b}; <span class="comment">/* gzip magic header */</span>
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="comment">/* gzip flag byte */</span>
<a name="l00180"></a>00180 <span class="preprocessor">#define ASCII_FLAG 0x01 </span><span class="comment">/* bit 0 set: file probably ascii text */</span>
<a name="l00181"></a>00181 <span class="preprocessor">#define HEAD_CRC 0x02 </span><span class="comment">/* bit 1 set: header CRC present */</span>
<a name="l00182"></a>00182 <span class="preprocessor">#define EXTRA_FIELD 0x04 </span><span class="comment">/* bit 2 set: extra field present */</span>
<a name="l00183"></a>00183 <span class="preprocessor">#define ORIG_NAME 0x08 </span><span class="comment">/* bit 3 set: original file name present */</span>
<a name="l00184"></a>00184 <span class="preprocessor">#define COMMENT 0x10 </span><span class="comment">/* bit 4 set: file comment present */</span>
<a name="l00185"></a>00185 <span class="preprocessor">#define RESERVED 0xE0 </span><span class="comment">/* bits 5..7: reserved */</span>
<a name="l00186"></a>00186 <span class="preprocessor">#endif</span>
<a name="l00187"></a>00187 <span class="preprocessor"></span>
<a name="l00188"></a>00188 <span class="comment">// 0 : ok</span>
<a name="l00189"></a>00189 <span class="comment">// 1 : not gzip</span>
<a name="l00190"></a>00190 <span class="comment">// 2 : no header</span>
<a name="l00191"></a>00191 <span class="keywordtype">int</span>
<a name="l00192"></a>00192 HTTPFilterGZip::checkHeader()
<a name="l00193"></a>00193 {
<a name="l00194"></a>00194 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00195"></a>00195 <span class="preprocessor"></span> uInt len;
<a name="l00196"></a>00196 <span class="keywordtype">int</span> c;
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="comment">/* Check the gzip magic header */</span>
<a name="l00199"></a>00199 <span class="keywordflow">for</span> (len = 0; len < 2; len++) {
<a name="l00200"></a>00200 c = get_byte();
<a name="l00201"></a>00201 <span class="keywordflow">if</span> (c != gz_magic[len]) {
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (len != 0)
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 zstr.avail_in++;
<a name="l00205"></a>00205 zstr.next_in--;
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (c != EOF) {
<a name="l00208"></a>00208 zstr.avail_in++;
<a name="l00209"></a>00209 zstr.next_in--;
<a name="l00210"></a>00210 <span class="keywordflow">return</span> 1;
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212 <span class="keywordflow">return</span> 2;
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="keywordtype">int</span> method = get_byte(); <span class="comment">/* method byte */</span>
<a name="l00217"></a>00217 <span class="keywordtype">int</span> flags = get_byte(); <span class="comment">/* flags byte */</span>
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (method != Z_DEFLATED || (flags & RESERVED) != 0) {
<a name="l00220"></a>00220 <span class="keywordflow">return</span> bEof ? 2 : 1;
<a name="l00221"></a>00221 }
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="comment">/* Discard time, xflags and OS code: */</span>
<a name="l00224"></a>00224 <span class="keywordflow">for</span> (len = 0; len < 6; len++) (<span class="keywordtype">void</span>)get_byte();
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordflow">if</span> ((flags & EXTRA_FIELD) != 0) { <span class="comment">/* skip the extra field */</span>
<a name="l00227"></a>00227 len = (uInt)get_byte();
<a name="l00228"></a>00228 len += ((uInt)get_byte())<<8;
<a name="l00229"></a>00229 <span class="comment">/* len is garbage if EOF but the loop below will quit anyway */</span>
<a name="l00230"></a>00230 <span class="keywordflow">while</span> (len-- != 0 && get_byte() != EOF) ;
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232 <span class="keywordflow">if</span> ((flags & ORIG_NAME) != 0) { <span class="comment">/* skip the original file name */</span>
<a name="l00233"></a>00233 <span class="keywordflow">while</span> ((c = get_byte()) != 0 && c != EOF) ;
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235 <span class="keywordflow">if</span> ((flags & COMMENT) != 0) { <span class="comment">/* skip the .gz file comment */</span>
<a name="l00236"></a>00236 <span class="keywordflow">while</span> ((c = get_byte()) != 0 && c != EOF) ;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 <span class="keywordflow">if</span> ((flags & HEAD_CRC) != 0) { <span class="comment">/* skip the header crc */</span>
<a name="l00239"></a>00239 <span class="keywordflow">for</span> (len = 0; len < 2; len++) (<span class="keywordtype">void</span>)get_byte();
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="keywordflow">return</span> bEof ? 2 : 0;
<a name="l00243"></a>00243 <span class="preprocessor">#else</span>
<a name="l00244"></a>00244 <span class="preprocessor"></span> <span class="keywordflow">return</span> 0;
<a name="l00245"></a>00245 <span class="preprocessor">#endif</span>
<a name="l00246"></a>00246 <span class="preprocessor"></span>}
<a name="l00247"></a>00247
<a name="l00248"></a>00248 <span class="keywordtype">void</span>
<a name="l00249"></a>00249 HTTPFilterGZip::slotInput(<span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &d)
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00252"></a>00252 <span class="preprocessor"></span> <span class="keywordflow">if</span> (bPlainText)
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 emit output(d);
<a name="l00255"></a>00255 <span class="keywordflow">return</span>;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (d.size() == 0)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (bEatTrailer)
<a name="l00260"></a>00260 bHasFinished = <span class="keyword">true</span>;
<a name="l00261"></a>00261 <span class="keywordflow">if</span> (!bHasFinished)
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 <span class="comment">// Make sure we get the last bytes still in the pipe.</span>
<a name="l00264"></a>00264 <span class="comment">// Needed with "deflate".</span>
<a name="l00265"></a>00265 <a class="codeRef" href="qbytearray.html">QByteArray</a> flush(4);
<a name="l00266"></a>00266 flush.fill(0);
<a name="l00267"></a>00267 slotInput(flush);
<a name="l00268"></a>00268 <span class="keywordflow">if</span> (!bHasFinished && !bHasHeader)
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 <span class="comment">// Send as-is</span>
<a name="l00271"></a>00271 emit output(headerData);
<a name="l00272"></a>00272 bHasFinished = <span class="keyword">true</span>;
<a name="l00273"></a>00273 <span class="comment">// End of data</span>
<a name="l00274"></a>00274 emit output(<a class="codeRef" href="qbytearray.html">QByteArray</a>());
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277 <span class="keywordflow">if</span> (!bHasFinished)
<a name="l00278"></a>00278 emit error( KIO::ERR_SLAVE_DEFINED, i18n(<span class="stringliteral">"Unexpected end of data, some information may be lost."</span>));
<a name="l00279"></a>00279 <span class="keywordflow">return</span>;
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (bHasFinished)
<a name="l00282"></a>00282 <span class="keywordflow">return</span>;
<a name="l00283"></a>00283
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (bEatTrailer)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 iTrailer -= d.size();
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (iTrailer <= 0)
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 bHasFinished = <span class="keyword">true</span>;
<a name="l00290"></a>00290 <span class="comment">// End of data</span>
<a name="l00291"></a>00291 emit output(<a class="codeRef" href="qbytearray.html">QByteArray</a>());
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293 <span class="keywordflow">return</span>;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="keywordflow">if</span> (!bHasHeader)
<a name="l00297"></a>00297 {
<a name="l00298"></a>00298 bEof = <span class="keyword">false</span>;
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="comment">// Add data to header.</span>
<a name="l00301"></a>00301 <span class="keywordtype">int</span> orig_size = headerData.size();
<a name="l00302"></a>00302 headerData.resize(orig_size+d.size());
<a name="l00303"></a>00303 memcpy(headerData.data()+orig_size, d.data(), d.size());
<a name="l00304"></a>00304
<a name="l00305"></a>00305 zstr.avail_in = headerData.size();
<a name="l00306"></a>00306 zstr.next_in = (Bytef *) headerData.data();
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keywordtype">int</span> result = checkHeader();
<a name="l00309"></a>00309 <span class="keywordflow">if</span> (result == 1)
<a name="l00310"></a>00310 {
<a name="l00311"></a>00311 bPlainText = <span class="keyword">true</span>;
<a name="l00312"></a>00312 output(headerData);
<a name="l00313"></a>00313 <span class="keywordflow">return</span>;
<a name="l00314"></a>00314 }
<a name="l00315"></a>00315
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (result != 0)
<a name="l00317"></a>00317 <span class="keywordflow">return</span>; <span class="comment">// next time better</span>
<a name="l00318"></a>00318
<a name="l00319"></a>00319 bHasHeader = <span class="keyword">true</span>;
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 <span class="keywordflow">else</span>
<a name="l00322"></a>00322 {
<a name="l00323"></a>00323 zstr.avail_in = d.size();
<a name="l00324"></a>00324 zstr.next_in = (Bytef *) d.data();
<a name="l00325"></a>00325 }
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="keywordflow">while</span>( zstr.avail_in )
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 <span class="keywordtype">char</span> buf[8192];
<a name="l00330"></a>00330 zstr.next_out = (Bytef *) buf;
<a name="l00331"></a>00331 zstr.avail_out = 8192;
<a name="l00332"></a>00332 <span class="keywordtype">int</span> result = inflate( &zstr, Z_NO_FLUSH );
<a name="l00333"></a>00333 <span class="keywordflow">if</span> ((result != Z_OK) && (result != Z_STREAM_END))
<a name="l00334"></a>00334 {
<a name="l00335"></a>00335 emit error( KIO::ERR_SLAVE_DEFINED, i18n(<span class="stringliteral">"Receiving corrupt data."</span>));
<a name="l00336"></a>00336 <span class="keywordflow">break</span>;
<a name="l00337"></a>00337 }
<a name="l00338"></a>00338 <span class="keywordtype">int</span> bytesOut = 8192 - zstr.avail_out;
<a name="l00339"></a>00339 <span class="keywordflow">if</span> (bytesOut)
<a name="l00340"></a>00340 {
<a name="l00341"></a>00341 <a class="codeRef" href="qbytearray.html">QByteArray</a> d;
<a name="l00342"></a>00342 d.setRawData( buf, bytesOut );
<a name="l00343"></a>00343 emit output(d);
<a name="l00344"></a>00344 d.resetRawData( buf, bytesOut );
<a name="l00345"></a>00345 }
<a name="l00346"></a>00346 <span class="keywordflow">if</span> (result == Z_STREAM_END)
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 <span class="keywordflow">if</span> (iTrailer)
<a name="l00349"></a>00349 {
<a name="l00350"></a>00350 bEatTrailer = <span class="keyword">true</span>;
<a name="l00351"></a>00351 }
<a name="l00352"></a>00352 <span class="keywordflow">else</span>
<a name="l00353"></a>00353 {
<a name="l00354"></a>00354 bHasFinished = <span class="keyword">true</span>;
<a name="l00355"></a>00355 <span class="comment">// End of data</span>
<a name="l00356"></a>00356 emit output(<a class="codeRef" href="qbytearray.html">QByteArray</a>());
<a name="l00357"></a>00357 }
<a name="l00358"></a>00358 <span class="keywordflow">return</span>;
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361 <span class="preprocessor">#endif</span>
<a name="l00362"></a>00362 <span class="preprocessor"></span>}
<a name="l00363"></a>00363
<a name="l00364"></a>00364 HTTPFilterDeflate::HTTPFilterDeflate()
<a name="l00365"></a>00365 {
<a name="l00366"></a>00366 <span class="preprocessor">#ifdef DO_GZIP</span>
<a name="l00367"></a>00367 <span class="preprocessor"></span> bHasHeader = <span class="keyword">true</span>;
<a name="l00368"></a>00368 iTrailer = 0;
<a name="l00369"></a>00369 <span class="preprocessor">#endif</span>
<a name="l00370"></a>00370 <span class="preprocessor"></span>}
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <span class="preprocessor">#include "httpfilter.moc"</span>
</pre></div></div>
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