request__parser_8c_source.html
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<h1>src/http/request_parser.c</h1> </div>
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<div class="contents">
<a href="request__parser_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00002"></a>00002 <span class="preprocessor">#include <string.h></span>
<a name="l00003"></a>00003 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include <stdio.h></span>
<a name="l00005"></a>00005 <span class="preprocessor">#include <unistd.h></span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <ctype.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#include "class.h"</span>
<a name="l00010"></a>00010 <span class="preprocessor">#include "http/request_parser.h"</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include "interface/class.h"</span>
<a name="l00012"></a>00012 <span class="preprocessor">#include "interface/stream_reader.h"</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "http/request.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "http/request_queue.h"</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keyword">static</span>
<a name="l00017"></a>00017 <span class="keywordtype">void</span>
<a name="l00018"></a>00018 httpRequestParserParse(<a class="code" href="structHttpRequestParser.html">HttpRequestParser</a>);
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keyword">static</span>
<a name="l00021"></a>00021 <span class="keywordtype">void</span>
<a name="l00022"></a>00022 ctor(<span class="keywordtype">void</span> * _this, va_list * params)
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 <a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> <span class="keyword">this</span> = _this;
<a name="l00025"></a>00025
<a name="l00026"></a>00026 this->request_queue = <span class="keyword">new</span>(<a class="code" href="structHttpRequestQueue.html">HttpRequestQueue</a>);
<a name="l00027"></a>00027
<a name="l00028"></a>00028 this->buffer = malloc(<a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>);
<a name="l00029"></a>00029 this->buffer[0] = 0;
<a name="l00030"></a>00030 }
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">static</span>
<a name="l00033"></a>00033 <span class="keywordtype">void</span>
<a name="l00034"></a>00034 dtor(<span class="keywordtype">void</span> * _this)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> <span class="keyword">this</span> = _this;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 free(this->buffer);
<a name="l00039"></a>00039 <span class="keyword">delete</span>(&(this->request_queue));
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="keyword">static</span>
<a name="l00043"></a>00043 <span class="keywordtype">void</span>
<a name="l00044"></a>00044 _clone(<span class="keywordtype">void</span> * _this, <span class="keywordtype">void</span> * _base)
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> <span class="keyword">this</span> = _this;
<a name="l00047"></a>00047 <a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> base = _base;
<a name="l00048"></a>00048 <span class="keywordtype">size_t</span> chunks;
<a name="l00049"></a>00049
<a name="l00053"></a>00053 this->request_queue = <span class="keyword">new</span>(<a class="code" href="structHttpRequestQueue.html">HttpRequestQueue</a>);
<a name="l00054"></a>00054 this->buffer_used = base-><a class="code" href="structHttpRequestParser.html#a8c978afebc23adea883f35699d0b1421">buffer_used</a>;
<a name="l00055"></a>00055
<a name="l00056"></a>00056 chunks = this->buffer_used / <a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>;
<a name="l00057"></a>00057 chunks++;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 this->buffer = malloc(chunks * <a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>);
<a name="l00060"></a>00060 memcpy(this->buffer, base-><a class="code" href="structHttpRequestParser.html#a6c93a89e984f6ee2c7f52bfa281c2f94">buffer</a>, this->buffer_used);
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keyword">static</span>
<a name="l00064"></a>00064 <span class="keywordtype">size_t</span>
<a name="l00065"></a>00065 get_data(<span class="keywordtype">void</span> * _this, <span class="keywordtype">int</span> fd)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> <span class="keyword">this</span> = _this;
<a name="l00068"></a>00068 <span class="keywordtype">size_t</span> remaining, chunks;
<a name="l00069"></a>00069 <span class="keywordtype">char</span> buffer[1024];
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keywordtype">size_t</span> size = read(fd, buffer, 1024);
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordflow">if</span> (0 < size) {
<a name="l00074"></a>00074 remaining = this->buffer_used % <a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>;
<a name="l00075"></a>00075 chunks = this->buffer_used / <a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>;
<a name="l00076"></a>00076
<a name="l00085"></a>00085 chunks++;
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (size >= remaining) {
<a name="l00088"></a>00088 this->buffer =
<a name="l00089"></a>00089 realloc(this->buffer, chunks * <a class="code" href="request__parser_8h.html#ad645c7940041e8d57b5557a197e133fb">HTTP_REQUEST_PARSER_READ_CHUNK</a>);
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a>00092 memcpy(this->buffer + this->buffer_used, buffer, size);
<a name="l00093"></a>00093 this->buffer_used += size;
<a name="l00094"></a>00094 this->buffer[this->buffer_used] = 0;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 httpRequestParserParse(<span class="keyword">this</span>);
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordflow">return</span> size;
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <a class="code" href="interface_8h.html#a446cc7d7282f8a0b8e62a371671ea605">INIT_IFACE</a>(Class, ctor, dtor, _clone);
<a name="l00103"></a>00103 <a class="code" href="interface_8h.html#a446cc7d7282f8a0b8e62a371671ea605">INIT_IFACE</a>(StreamReader, get_data);
<a name="l00104"></a>00104 <a class="code" href="class_8h.html#a509b4880afb25bb862c448d7a71e7afe">CREATE_CLASS</a>(<a class="code" href="structHttpRequestParser.html">HttpRequestParser</a>, NULL, <a class="code" href="interface_8h.html#a02255665665c91d905ec32d00d9a4a85">IFACE</a>(Class), <a class="code" href="interface_8h.html#a02255665665c91d905ec32d00d9a4a85">IFACE</a>(StreamReader));
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">static</span>
<a name="l00107"></a>00107 <span class="keyword">inline</span>
<a name="l00108"></a>00108 <span class="keywordtype">char</span> *
<a name="l00109"></a>00109 httpRequestLineGet(<span class="keywordtype">char</span> ** data)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="keywordtype">char</span> * line_end = strstr(*data, <span class="stringliteral">"\r\n"</span>);
<a name="l00112"></a>00112 <span class="keywordtype">char</span> * ret = *data;
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="keywordflow">if</span> (NULL == line_end) {
<a name="l00115"></a>00115 <span class="keywordflow">return</span> NULL;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118 *line_end = 0;
<a name="l00119"></a>00119 *data = line_end + 2;
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keywordflow">return</span> ret;
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keyword">static</span>
<a name="l00125"></a>00125 <span class="keyword">inline</span>
<a name="l00126"></a>00126 <span class="keywordtype">void</span>
<a name="l00127"></a>00127 httpRequestSkip(<span class="keywordtype">char</span> ** data)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">for</span> (; 0 != **data && ! isalpha(**data); (*data)++);
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">static</span>
<a name="l00133"></a>00133 <span class="keywordtype">void</span>
<a name="l00134"></a>00134 httpRequestParserParse(<a class="code" href="structHttpRequestParser.html">HttpRequestParser</a> <span class="keyword">this</span>)
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 <span class="keyword">static</span> <a class="code" href="structHttpRequest.html">HttpRequest</a> request = NULL;
<a name="l00137"></a>00137 <span class="keyword">static</span> <span class="keywordtype">char</span> * data; <span class="comment">// static pointer to unprocessed data</span>
<a name="l00138"></a>00138 <span class="keywordtype">char</span> * line;
<a name="l00139"></a>00139 <span class="keywordtype">int</span> cont = 1;
<a name="l00140"></a>00140 <span class="keyword">static</span> <span class="keywordtype">int</span> header_idx;
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keywordflow">while</span>(cont) {
<a name="l00143"></a>00143 <span class="keywordflow">switch</span>(this->state) {
<a name="l00144"></a>00144 <span class="keywordflow">case</span> <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21ab3db7445ba173b1f1e96920cc9a68ce5">HTTP_REQUEST_GARBAGE</a>:
<a name="l00145"></a>00145 data = this->buffer; <span class="comment">// initialize static pointer</span>
<a name="l00146"></a>00146 httpRequestSkip(&data);
<a name="l00147"></a>00147 request = <span class="keyword">new</span>(<a class="code" href="structHttpRequest.html">HttpRequest</a>);
<a name="l00148"></a>00148
<a name="l00149"></a>00149 this->state = <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21adb7cd42594721f63ab68224a0b1c250a">HTTP_REQUEST_START</a>;
<a name="l00150"></a>00150 <span class="keywordflow">break</span>;
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordflow">case</span> <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21adb7cd42594721f63ab68224a0b1c250a">HTTP_REQUEST_START</a>:
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (NULL == (line = httpRequestLineGet(&data))) {
<a name="l00154"></a>00154 cont = 0;
<a name="l00155"></a>00155 <span class="keywordflow">break</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="keywordtype">char</span> * delim = strchr(line, <span class="charliteral">' '</span>);
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordflow">if</span> (NULL != delim) {
<a name="l00162"></a>00162 *delim = 0;
<a name="l00163"></a>00163 request-><a class="code" href="structHttpRequest.html#a266c616e67dea85335c9fcfca6e5c0cb">method</a> = malloc(strlen(line) + 1);
<a name="l00164"></a>00164 strcpy(request-><a class="code" href="structHttpRequest.html#a266c616e67dea85335c9fcfca6e5c0cb">method</a>, line);
<a name="l00165"></a>00165 line = delim + 1;
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keywordflow">for</span> (; *line == <span class="charliteral">' '</span> && *line != 0; line++);
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordflow">if</span> (0 != *line) {
<a name="l00170"></a>00170 delim = strchr(line, <span class="charliteral">' '</span>);
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keywordflow">if</span> (NULL != delim) {
<a name="l00173"></a>00173 *delim = 0;
<a name="l00174"></a>00174 request-><a class="code" href="structHttpRequest.html#a3f880540d72ba70d88f8a312b256b7c9">uri</a> = malloc(strlen(line) + 1);
<a name="l00175"></a>00175 strcpy(request-><a class="code" href="structHttpRequest.html#a3f880540d72ba70d88f8a312b256b7c9">uri</a>, line);
<a name="l00176"></a>00176 line = delim + 1;
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keywordflow">for</span> (; *line == <span class="charliteral">' '</span> && *line != 0; line++);
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (0 != *line) {
<a name="l00181"></a>00181 request-><a class="code" href="structHttpRequest.html#ab9bfe4f569e5cbcbf49d4b8377d254a2">http_version</a> = malloc(strlen(line) + 1);
<a name="l00182"></a>00182 strcpy(request-><a class="code" href="structHttpRequest.html#ab9bfe4f569e5cbcbf49d4b8377d254a2">http_version</a>, line);
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 header_idx = 0;
<a name="l00190"></a>00190 this->state = <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21a7d6368bbdc9707276bace26d735c2395">HTTP_REQUEST_REQUEST_LINE_DONE</a>;
<a name="l00191"></a>00191 <span class="keywordflow">break</span>;
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keywordflow">case</span> <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21a7d6368bbdc9707276bace26d735c2395">HTTP_REQUEST_REQUEST_LINE_DONE</a>:
<a name="l00194"></a>00194 <span class="keywordflow">if</span> (NULL == (line = httpRequestLineGet(&data))) {
<a name="l00195"></a>00195 cont = 0;
<a name="l00196"></a>00196 <span class="keywordflow">break</span>;
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (0 == strlen(line)) {
<a name="l00200"></a>00200 this->state = <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21a1a45d176d7e76f28cf1529c72a245cb7">HTTP_REQUEST_HEADERS_DONE</a>;
<a name="l00201"></a>00201 <span class="keywordflow">break</span>;
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 <span class="keywordtype">char</span> * delim = strchr(line, <span class="charliteral">':'</span>);
<a name="l00206"></a>00206
<a name="l00207"></a>00207 *delim = 0;
<a name="l00208"></a>00208 (request-><a class="code" href="structHttpRequest.html#ab0abc660d76e3b9a169bddd4a92ffd52">header</a>)[header_idx].name = malloc(strlen(line) + 1);
<a name="l00209"></a>00209 strcpy((request-><a class="code" href="structHttpRequest.html#ab0abc660d76e3b9a169bddd4a92ffd52">header</a>)[header_idx].name, line);
<a name="l00210"></a>00210
<a name="l00211"></a>00211 line = delim + 1;
<a name="l00212"></a>00212 <span class="keywordflow">for</span> (; *line == <span class="charliteral">' '</span> && *line != 0; line++);
<a name="l00213"></a>00213
<a name="l00214"></a>00214 (request-><a class="code" href="structHttpRequest.html#ab0abc660d76e3b9a169bddd4a92ffd52">header</a>)[header_idx].value = malloc(strlen(line) + 1);
<a name="l00215"></a>00215 strcpy((request-><a class="code" href="structHttpRequest.html#ab0abc660d76e3b9a169bddd4a92ffd52">header</a>)[header_idx].value, line);
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 header_idx++;
<a name="l00219"></a>00219 <span class="keywordflow">break</span>;
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="keywordflow">case</span> <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21a1a45d176d7e76f28cf1529c72a245cb7">HTTP_REQUEST_HEADERS_DONE</a>:
<a name="l00225"></a>00225 this->state = <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21abb5b68f30f3d5e90723983a86ef54a8b">HTTP_REQUEST_DONE</a>;
<a name="l00226"></a>00226 <span class="keywordflow">break</span>;
<a name="l00227"></a>00227
<a name="l00228"></a>00228 <span class="keywordflow">case</span> <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21abb5b68f30f3d5e90723983a86ef54a8b">HTTP_REQUEST_DONE</a>:
<a name="l00232"></a>00232 this->request_queue->requests[(this->request_queue->nrequests)++] =
<a name="l00233"></a>00233 request;
<a name="l00234"></a>00234
<a name="l00238"></a>00238 memmove(this->buffer,
<a name="l00239"></a>00239 data,
<a name="l00240"></a>00240 this->buffer_used - (data - this->buffer) + 1);
<a name="l00241"></a>00241
<a name="l00242"></a>00242 this->buffer_used -= data - this->buffer;
<a name="l00243"></a>00243
<a name="l00247"></a>00247 <span class="keywordflow">if</span> (0 == this->buffer_used) {
<a name="l00248"></a>00248 cont = 0;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250
<a name="l00254"></a>00254 this->state = <a class="code" href="request__parser_8h.html#a9e1bc4e9118896fae9e2d86e25582c21ab3db7445ba173b1f1e96920cc9a68ce5">HTTP_REQUEST_GARBAGE</a>;
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="keywordflow">break</span>;
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="keywordflow">default</span>:
<a name="l00259"></a>00259 <span class="keywordflow">break</span>;
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="comment">// vim: set ts=4 sw=4:</span>
</pre></div></div>
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