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<h1>src/spdy_parser.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// ---------------------------------------------------------------------</span>
<a name="l00002"></a>00002 <span class="comment">// pion: a Boost C++ framework for building lightweight HTTP interfaces</span>
<a name="l00003"></a>00003 <span class="comment">// ---------------------------------------------------------------------</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (C) 2007-2012 Cloudmeter, Inc. (http://www.cloudmeter.com)</span>
<a name="l00005"></a>00005 <span class="comment">//</span>
<a name="l00006"></a>00006 <span class="comment">// Distributed under the Boost Software License, Version 1.0.</span>
<a name="l00007"></a>00007 <span class="comment">// See http://www.boost.org/LICENSE_1_0.txt</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#include <cstdlib></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <boost/regex.hpp></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <boost/logic/tribool.hpp></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <boost/asio/detail/socket_ops.hpp></span>
<a name="l00014"></a>00014 <span class="preprocessor">#include <pion/algorithm.hpp></span>
<a name="l00015"></a>00015 <span class="preprocessor">#include <pion/spdy/parser.hpp></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <pion/spdy/decompressor.hpp></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include <pion/spdy/types.hpp></span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keyword">namespace </span>pion { <span class="comment">// begin namespace pion</span>
<a name="l00021"></a>00021 <span class="keyword">namespace </span>spdy { <span class="comment">// begin namespace spdy</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023
<a name="l00024"></a>00024 parser::error_category_t * parser::m_error_category_ptr = NULL;
<a name="l00025"></a>00025 boost::once_flag parser::m_instance_flag = BOOST_ONCE_INIT;
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">// parser member functions</span>
<a name="l00028"></a>00028
<a name="l00029"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a289c7ef60496f20705af20bec52d5302">00029</a> <a class="code" href="classpion_1_1spdy_1_1parser.html#a289c7ef60496f20705af20bec52d5302" title="constructs a new parser object (default constructor)">parser::parser</a>()
<a name="l00030"></a>00030 : m_read_ptr(NULL),
<a name="l00031"></a>00031 m_uncompressed_ptr(NULL),
<a name="l00032"></a>00032 m_current_data_chunk_ptr(NULL),
<a name="l00033"></a>00033 m_last_data_chunk_ptr(NULL),
<a name="l00034"></a>00034 m_logger(PION_GET_LOGGER(<span class="stringliteral">"pion.spdy.parser"</span>))
<a name="l00035"></a>00035 {}
<a name="l00036"></a>00036
<a name="l00037"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a824b2f98f915c0402c75c50e33af1d4f">00037</a> boost::tribool <a class="code" href="classpion_1_1spdy_1_1parser.html#a824b2f98f915c0402c75c50e33af1d4f">parser::parse</a>(<a class="code" href="structpion_1_1spdy_1_1__http__protocol__info__t.html" title="This structure contains the HTTP Protocol information.">http_protocol_info</a>& http_info,
<a name="l00038"></a>00038 boost::system::error_code& ec,
<a name="l00039"></a>00039 decompressor_ptr& <a class="code" href="classpion_1_1spdy_1_1decompressor.html">decompressor</a>,
<a name="l00040"></a>00040 <span class="keyword">const</span> <span class="keywordtype">char</span> *packet_ptr,
<a name="l00041"></a>00041 boost::uint32_t& length_packet,
<a name="l00042"></a>00042 boost::uint32_t current_stream_count)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="comment">// initialize read position</span>
<a name="l00045"></a>00045 <a class="code" href="classpion_1_1spdy_1_1parser.html#a84d142819f982415844b77f5c3d8d0bb" title="resets the read pointer">set_read_ptr</a>(packet_ptr);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">// Parse the frame</span>
<a name="l00048"></a>00048 <span class="keywordflow">return</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a7fa079f8501944f9d55f2054f896d08a">parse_spdy_frame</a>(ec, decompressor, http_info, length_packet, current_stream_count);
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a9d162f5bb587fe627f678a9ab19dd712">00051</a> <span class="keywordtype">bool</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a9d162f5bb587fe627f678a9ab19dd712">parser::is_spdy_control_frame</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *ptr)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="comment">// Parse further for higher accuracy</span>
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="comment">// Get the control bit</span>
<a name="l00056"></a>00056 boost::uint8_t control_bit;
<a name="l00057"></a>00057 boost::uint16_t version, type;
<a name="l00058"></a>00058 boost::uint16_t byte_value = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(ptr);
<a name="l00059"></a>00059 control_bit = byte_value >> (<span class="keyword">sizeof</span>(short) * CHAR_BIT - 1);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordflow">if</span> (!control_bit) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="comment">// Control bit is set; This is a control frame</span>
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="comment">// Get the version number</span>
<a name="l00066"></a>00066 boost::uint16_t two_bytes = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(ptr);
<a name="l00067"></a>00067 version = two_bytes & 0x7FFF;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordflow">if</span>(version < 1 || version > 3){
<a name="l00070"></a>00070 <span class="comment">// SPDY does not have a version higher than 3 and lower than 1 at the moment</span>
<a name="l00071"></a>00071 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="comment">// Increment the read pointer</span>
<a name="l00075"></a>00075 ptr += 2;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 type = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(ptr);
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (type >= SPDY_INVALID) {
<a name="l00080"></a>00080 <span class="comment">// Not among the recognized SPDY types</span>
<a name="l00081"></a>00081 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#afa6e6079f12d6adc17688b38bc0727dd">00087</a> spdy_frame_type <a class="code" href="classpion_1_1spdy_1_1parser.html#afa6e6079f12d6adc17688b38bc0727dd">parser::get_spdy_frame_type</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *ptr)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 <span class="comment">// Determine if this a SPDY frame</span>
<a name="l00090"></a>00090 BOOST_ASSERT(ptr);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">/*</span>
<a name="l00093"></a>00093 <span class="comment"> * The first byte of a SPDY frame must be either 0 or</span>
<a name="l00094"></a>00094 <span class="comment"> * 0x80. If it's not, assume that this is not SPDY.</span>
<a name="l00095"></a>00095 <span class="comment"> * (In theory, a data frame could have a stream ID</span>
<a name="l00096"></a>00096 <span class="comment"> * >= 2^24, in which case it won't have 0 for a first</span>
<a name="l00097"></a>00097 <span class="comment"> * byte, but this is a pretty reliable heuristic for</span>
<a name="l00098"></a>00098 <span class="comment"> * now.)</span>
<a name="l00099"></a>00099 <span class="comment"> */</span>
<a name="l00100"></a>00100
<a name="l00101"></a>00101 spdy_frame_type spdy_frame;
<a name="l00102"></a>00102 boost::uint8_t first_byte = *((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)ptr);
<a name="l00103"></a>00103 <span class="keywordflow">if</span>(first_byte == 0x80){
<a name="l00104"></a>00104 spdy_frame = spdy_control_frame;
<a name="l00105"></a>00105 }<span class="keywordflow">else</span> <span class="keywordflow">if</span>(first_byte == 0x0){
<a name="l00106"></a>00106 spdy_frame = spdy_data_frame;
<a name="l00107"></a>00107 }<span class="keywordflow">else</span>{
<a name="l00108"></a>00108 spdy_frame = spdy_invalid_frame;
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110 <span class="keywordflow">return</span> spdy_frame;
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a472c57e8a77ee5ad056ef11fe5aad50e">00113</a> boost::uint32_t <a class="code" href="classpion_1_1spdy_1_1parser.html#a472c57e8a77ee5ad056ef11fe5aad50e">parser::get_control_frame_stream_id</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *ptr)
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="comment">// The stream ID for control frames is at a 8 bit offser from start</span>
<a name="l00116"></a>00116 ptr += 8;
<a name="l00117"></a>00117
<a name="l00118"></a>00118 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(ptr);
<a name="l00119"></a>00119 <span class="keywordflow">return</span> four_bytes & 0x7FFFFFFF;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a7fa079f8501944f9d55f2054f896d08a">00122</a> boost::tribool <a class="code" href="classpion_1_1spdy_1_1parser.html#a7fa079f8501944f9d55f2054f896d08a">parser::parse_spdy_frame</a>(boost::system::error_code& ec,
<a name="l00123"></a>00123 decompressor_ptr& <a class="code" href="classpion_1_1spdy_1_1decompressor.html">decompressor</a>,
<a name="l00124"></a>00124 <a class="code" href="structpion_1_1spdy_1_1__http__protocol__info__t.html" title="This structure contains the HTTP Protocol information.">http_protocol_info</a>& http_info,
<a name="l00125"></a>00125 boost::uint32_t& length_packet,
<a name="l00126"></a>00126 boost::uint32_t current_stream_count)
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 boost::tribool rc = <span class="keyword">true</span>;
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="comment">// Verify that this is a spdy frame</span>
<a name="l00131"></a>00131
<a name="l00132"></a>00132 BOOST_ASSERT(m_read_ptr);
<a name="l00133"></a>00133 boost::uint8_t first_byte = (boost::uint8_t)*m_read_ptr;
<a name="l00134"></a>00134 <span class="keywordflow">if</span> (first_byte != 0x80 && first_byte != 0x0) {
<a name="l00135"></a>00135 <span class="comment">// This is not a SPDY frame, throw an error</span>
<a name="l00136"></a>00136 PION_LOG_ERROR(m_logger, <span class="stringliteral">"Invalid SPDY Frame"</span>);
<a name="l00137"></a>00137 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_INVALID_SPDY_FRAME);
<a name="l00138"></a>00138 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a>00141 boost::uint8_t control_bit;
<a name="l00142"></a>00142 <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a> frame;
<a name="l00143"></a>00143 boost::uint32_t stream_id = 0;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 ec.clear();
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="comment">// Populate the frame</span>
<a name="l00148"></a>00148 <span class="keywordtype">bool</span> populate_frame_result = <a class="code" href="classpion_1_1spdy_1_1parser.html#aa0000b4cee0f8a2084f3e0056ab561de">populate_frame</a>(ec, frame, length_packet, stream_id, http_info);
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="keywordflow">if</span>(!populate_frame_result){
<a name="l00152"></a>00152 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 BOOST_ASSERT(stream_id != 0);
<a name="l00156"></a>00156
<a name="l00157"></a>00157 control_bit = (boost::uint8_t)frame.control_bit;
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="comment">// There is a possibility that there are more than one SPDY frames in one TCP frame</span>
<a name="l00160"></a>00160 <span class="keywordflow">if</span>(length_packet > frame.length){
<a name="l00161"></a>00161 m_current_data_chunk_ptr = m_read_ptr + frame.length;
<a name="l00162"></a>00162 length_packet -= frame.length;
<a name="l00163"></a>00163 rc = boost::indeterminate;
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keywordflow">if</span> (!control_bit) {
<a name="l00167"></a>00167 <span class="comment">// Parse the data packet</span>
<a name="l00168"></a>00168 <a class="code" href="classpion_1_1spdy_1_1parser.html#aae6750b7a90921dd6d8bc2da50cc1aa7">parse_spdy_data</a>(ec, frame, stream_id, http_info);
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="comment">/* Abort here if the version is too low. */</span>
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="keywordflow">if</span> (frame.version > MIN_SPDY_VERSION) {
<a name="l00174"></a>00174 <span class="comment">// Version less that min SPDY version, throw an error</span>
<a name="l00175"></a>00175 PION_LOG_ERROR(m_logger, <span class="stringliteral">"Invalid SPDY Version Number"</span>);
<a name="l00176"></a>00176 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_INVALID_SPDY_VERSION);
<a name="l00177"></a>00177 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordflow">if</span>(frame.type == SPDY_SYN_STREAM){
<a name="l00181"></a>00181 http_info.http_type = HTTP_REQUEST;
<a name="l00182"></a>00182 }<span class="keywordflow">else</span> <span class="keywordflow">if</span> (frame.type == SPDY_SYN_REPLY){
<a name="l00183"></a>00183 http_info.http_type = HTTP_RESPONSE;
<a name="l00184"></a>00184 }<span class="keywordflow">else</span> <span class="keywordflow">if</span> (frame.type == SPDY_DATA){
<a name="l00185"></a>00185 http_info.http_type = HTTP_DATA;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordflow">switch</span> (frame.type) {
<a name="l00189"></a>00189 <span class="keywordflow">case</span> SPDY_SYN_STREAM:
<a name="l00190"></a>00190 <span class="keywordflow">case</span> SPDY_SYN_REPLY:
<a name="l00191"></a>00191 <span class="keywordflow">case</span> SPDY_HEADERS:
<a name="l00192"></a>00192 <a class="code" href="classpion_1_1spdy_1_1parser.html#a76731f8ae345f1a5af910e5e92b64bbe">parse_header_payload</a>(ec, decompressor, frame, http_info, current_stream_count);
<a name="l00193"></a>00193 <span class="keywordflow">break</span>;
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="keywordflow">case</span> SPDY_RST_STREAM:
<a name="l00196"></a>00196 <a class="code" href="classpion_1_1spdy_1_1parser.html#ad69dd18af5afc1b6d84d743c3d21d8e0">parse_spdy_rst_stream</a>(ec, frame);
<a name="l00197"></a>00197 http_info.http_type = SPDY_CONTROL;
<a name="l00198"></a>00198 <span class="keywordflow">break</span>;
<a name="l00199"></a>00199
<a name="l00200"></a>00200 <span class="keywordflow">case</span> SPDY_SETTINGS:
<a name="l00201"></a>00201 <a class="code" href="classpion_1_1spdy_1_1parser.html#a36bd7ae76e3796cf4f99a30aa728c800">parse_spdy_settings_frame</a>(ec, frame);
<a name="l00202"></a>00202 http_info.http_type = SPDY_CONTROL;
<a name="l00203"></a>00203 <span class="keywordflow">break</span>;
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="keywordflow">case</span> SPDY_PING:
<a name="l00206"></a>00206 <a class="code" href="classpion_1_1spdy_1_1parser.html#a22199322320ed1a68407b438a898d98b">parse_spdy_ping_frame</a>(ec, frame);
<a name="l00207"></a>00207 http_info.http_type = SPDY_CONTROL;
<a name="l00208"></a>00208 <span class="keywordflow">break</span>;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">case</span> SPDY_GOAWAY:
<a name="l00211"></a>00211 <a class="code" href="classpion_1_1spdy_1_1parser.html#ae213965a7a77b4cfb385bfa8685c3e50">parse_spdy_goaway_frame</a>(ec, frame);
<a name="l00212"></a>00212 http_info.http_type = SPDY_CONTROL;
<a name="l00213"></a>00213 <span class="keywordflow">break</span>;
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">case</span> SPDY_WINDOW_UPDATE:
<a name="l00216"></a>00216 <a class="code" href="classpion_1_1spdy_1_1parser.html#a0ce476c60751c29909aec2af32b5b64e">parse_spdy_window_update_frame</a>(ec, frame);
<a name="l00217"></a>00217 http_info.http_type = SPDY_CONTROL;
<a name="l00218"></a>00218 <span class="keywordflow">break</span>;
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="keywordflow">case</span> SPDY_CREDENTIAL:
<a name="l00221"></a>00221 <span class="comment">// We dont need to parse this for now</span>
<a name="l00222"></a>00222 http_info.http_type = SPDY_CONTROL;
<a name="l00223"></a>00223 <span class="keywordflow">break</span>;
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordflow">default</span>:
<a name="l00226"></a>00226 <span class="keywordflow">break</span>;
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="keywordflow">if</span> (ec)
<a name="l00230"></a>00230 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00231"></a>00231
<a name="l00232"></a>00232 m_last_data_chunk_ptr = m_read_ptr;
<a name="l00233"></a>00233 m_read_ptr = m_current_data_chunk_ptr;
<a name="l00234"></a>00234
<a name="l00235"></a>00235 <span class="keywordflow">return</span> rc;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a81f25358fc4fbffeb6532cf10c6f7aa4">00238</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a81f25358fc4fbffeb6532cf10c6f7aa4" title="creates the unique parser error_category_t">parser::create_error_category</a>(<span class="keywordtype">void</span>)
<a name="l00239"></a>00239 {
<a name="l00240"></a>00240 <span class="keyword">static</span> <a class="code" href="classpion_1_1spdy_1_1parser_1_1error__category__t.html" title="class-specific error category">error_category_t</a> UNIQUE_ERROR_CATEGORY;
<a name="l00241"></a>00241 m_error_category_ptr = &UNIQUE_ERROR_CATEGORY;
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#aa0000b4cee0f8a2084f3e0056ab561de">00244</a> <span class="keywordtype">bool</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#aa0000b4cee0f8a2084f3e0056ab561de">parser::populate_frame</a>(boost::system::error_code& ec,
<a name="l00245"></a>00245 <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame,
<a name="l00246"></a>00246 boost::uint32_t& length_packet,
<a name="l00247"></a>00247 boost::uint32_t& stream_id,
<a name="l00248"></a>00248 <a class="code" href="structpion_1_1spdy_1_1__http__protocol__info__t.html" title="This structure contains the HTTP Protocol information.">http_protocol_info</a>& http_info)
<a name="l00249"></a>00249 {
<a name="l00250"></a>00250 <span class="comment">// Get the control bit</span>
<a name="l00251"></a>00251 boost::uint8_t control_bit;
<a name="l00252"></a>00252 boost::uint16_t byte_value = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_read_ptr);
<a name="l00253"></a>00253 control_bit = byte_value >> (<span class="keyword">sizeof</span>(short) * CHAR_BIT - 1);
<a name="l00254"></a>00254
<a name="l00255"></a>00255 frame.control_bit = (bool)control_bit;
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="keywordflow">if</span>(control_bit){
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <span class="comment">// Control bit is set; This is a control frame</span>
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="comment">// Get the version number</span>
<a name="l00262"></a>00262 boost::uint16_t two_bytes = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_read_ptr);
<a name="l00263"></a>00263 frame.version = two_bytes & 0x7FFF;
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="comment">// Increment the read pointer</span>
<a name="l00266"></a>00266 m_read_ptr += 2;
<a name="l00267"></a>00267 length_packet -= 2;
<a name="l00268"></a>00268 http_info.data_offset +=2;
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <span class="comment">// Get the type</span>
<a name="l00271"></a>00271 frame.type = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_read_ptr);
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="keywordflow">if</span> (frame.type >= SPDY_INVALID) {
<a name="l00274"></a>00274 <span class="comment">// SPDY Frame is invalid</span>
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="comment">// This is not a SPDY frame, throw an error</span>
<a name="l00277"></a>00277 PION_LOG_ERROR(m_logger, <span class="stringliteral">"Invalid SPDY Frame"</span>);
<a name="l00278"></a>00278 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_INVALID_SPDY_FRAME);
<a name="l00279"></a>00279 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 }<span class="keywordflow">else</span> {
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="comment">// Control bit is not set; This is a data frame</span>
<a name="l00284"></a>00284
<a name="l00285"></a>00285 frame.type = SPDY_DATA;
<a name="l00286"></a>00286 frame.version = 0; <span class="comment">/* Version doesn't apply to DATA. */</span>
<a name="l00287"></a>00287 <span class="comment">// Get the stream id</span>
<a name="l00288"></a>00288 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00289"></a>00289 stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00290"></a>00290
<a name="l00291"></a>00291 http_info.stream_id = stream_id;
<a name="l00292"></a>00292
<a name="l00293"></a>00293 m_read_ptr +=2;
<a name="l00294"></a>00294 http_info.data_offset +=2;
<a name="l00295"></a>00295 length_packet -= 2;
<a name="l00296"></a>00296
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="comment">// Increment the read pointer</span>
<a name="l00300"></a>00300 m_read_ptr += 2;
<a name="l00301"></a>00301 length_packet -= 2;
<a name="l00302"></a>00302 http_info.data_offset +=2;
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="comment">// Get the flags</span>
<a name="l00305"></a>00305 frame.flags = (boost::uint8_t)*m_read_ptr;
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <span class="comment">// Increment the read pointer</span>
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="comment">// Get the length</span>
<a name="l00310"></a>00310 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00311"></a>00311 frame.length = four_bytes & 0xFFFFFF;
<a name="l00312"></a>00312
<a name="l00313"></a>00313 <span class="comment">// Increment the read pointer</span>
<a name="l00314"></a>00314 m_read_ptr += 4;
<a name="l00315"></a>00315 length_packet -= 4;
<a name="l00316"></a>00316 http_info.data_offset +=4;
<a name="l00317"></a>00317
<a name="l00318"></a>00318 http_info.data_size = frame.length;
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="keywordflow">if</span>(control_bit){
<a name="l00321"></a>00321 four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00322"></a>00322 stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324
<a name="l00325"></a>00325 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00326"></a>00326 }
<a name="l00327"></a>00327
<a name="l00328"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a76731f8ae345f1a5af910e5e92b64bbe">00328</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a76731f8ae345f1a5af910e5e92b64bbe">parser::parse_header_payload</a>(boost::system::error_code &ec,
<a name="l00329"></a>00329 decompressor_ptr& <a class="code" href="classpion_1_1spdy_1_1decompressor.html">decompressor</a>,
<a name="l00330"></a>00330 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame,
<a name="l00331"></a>00331 <a class="code" href="structpion_1_1spdy_1_1__http__protocol__info__t.html" title="This structure contains the HTTP Protocol information.">http_protocol_info</a>& http_info,
<a name="l00332"></a>00332 boost::uint32_t current_stream_count)
<a name="l00333"></a>00333 {
<a name="l00334"></a>00334 boost::uint32_t stream_id = 0;
<a name="l00335"></a>00335 boost::uint32_t associated_stream_id;
<a name="l00336"></a>00336 boost::uint32_t header_block_length = frame.length;
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="comment">// Get the 31 bit stream id</span>
<a name="l00339"></a>00339
<a name="l00340"></a>00340 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00341"></a>00341 stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00342"></a>00342
<a name="l00343"></a>00343 m_read_ptr += 4;
<a name="l00344"></a>00344
<a name="l00345"></a>00345 http_info.stream_id = stream_id;
<a name="l00346"></a>00346
<a name="l00347"></a>00347 <span class="comment">// Get SYN_STREAM-only fields.</span>
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <span class="keywordflow">if</span> (frame.type == SPDY_SYN_STREAM) {
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="comment">// Get associated stream ID.</span>
<a name="l00352"></a>00352
<a name="l00353"></a>00353 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00354"></a>00354 associated_stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00355"></a>00355
<a name="l00356"></a>00356 m_read_ptr += 4;
<a name="l00357"></a>00357
<a name="l00358"></a>00358 <span class="comment">// The next bits are priority, unused, and slot.</span>
<a name="l00359"></a>00359 <span class="comment">// Disregard these for now as we dont need them</span>
<a name="l00360"></a>00360
<a name="l00361"></a>00361 m_read_ptr +=2 ;
<a name="l00362"></a>00362
<a name="l00363"></a>00363 } <span class="keywordflow">else</span> <span class="keywordflow">if</span>( frame.type == SPDY_SYN_REPLY || frame.type == SPDY_HEADERS ) {
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="comment">// Unused bits</span>
<a name="l00366"></a>00366 m_read_ptr +=2 ;
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368
<a name="l00369"></a>00369 <span class="comment">// Get our header block length.</span>
<a name="l00370"></a>00370
<a name="l00371"></a>00371 <span class="keywordflow">switch</span> (frame.type) {
<a name="l00372"></a>00372 <span class="keywordflow">case</span> SPDY_SYN_STREAM:
<a name="l00373"></a>00373 header_block_length -= 10;
<a name="l00374"></a>00374 <span class="keywordflow">break</span>;
<a name="l00375"></a>00375 <span class="keywordflow">case</span> SPDY_SYN_REPLY:
<a name="l00376"></a>00376 <span class="keywordflow">case</span> SPDY_HEADERS:
<a name="l00377"></a>00377 <span class="comment">// This is a very important distinction.</span>
<a name="l00378"></a>00378 <span class="comment">// It should be 6 bytes for SPDYv2 and 4 bytes for SPDYv3.</span>
<a name="l00379"></a>00379 header_block_length -= 6;
<a name="l00380"></a>00380 <span class="keywordflow">break</span>;
<a name="l00381"></a>00381 <span class="keywordflow">default</span>:
<a name="l00382"></a>00382 <span class="comment">// Unhandled case. This should never happen.</span>
<a name="l00383"></a>00383 PION_LOG_ERROR(m_logger, <span class="stringliteral">"Invalid SPDY Frame Type"</span>);
<a name="l00384"></a>00384 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_INVALID_SPDY_FRAME);
<a name="l00385"></a>00385 <span class="keywordflow">return</span>;
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="comment">// Decompress header block as necessary.</span>
<a name="l00389"></a>00389 m_uncompressed_ptr = decompressor->decompress(m_read_ptr,
<a name="l00390"></a>00390 stream_id,
<a name="l00391"></a>00391 frame,
<a name="l00392"></a>00392 header_block_length);
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="keywordflow">if</span> (!m_uncompressed_ptr) {
<a name="l00395"></a>00395 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_DECOMPRESSION);
<a name="l00396"></a>00396 <span class="keywordflow">return</span>;
<a name="l00397"></a>00397 }
<a name="l00398"></a>00398
<a name="l00399"></a>00399 <span class="comment">// Now parse the name/value pairs</span>
<a name="l00400"></a>00400
<a name="l00401"></a>00401 <span class="comment">// The number of name/value pairs is 16 bit SPDYv2</span>
<a name="l00402"></a>00402 <span class="comment">// and it is 32 bit in SPDYv3</span>
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="comment">// TBD : Add support for SPDYv3</span>
<a name="l00405"></a>00405 boost::uint16_t num_name_val_pairs = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_uncompressed_ptr);
<a name="l00406"></a>00406
<a name="l00407"></a>00407 m_uncompressed_ptr += 2;
<a name="l00408"></a>00408
<a name="l00409"></a>00409 std::string content_type = <span class="stringliteral">""</span>;
<a name="l00410"></a>00410 std::string content_encoding = <span class="stringliteral">""</span>;
<a name="l00411"></a>00411
<a name="l00412"></a>00412 <span class="keywordflow">for</span>(boost::uint16_t count = 0; count < num_name_val_pairs; ++count){
<a name="l00413"></a>00413
<a name="l00414"></a>00414
<a name="l00415"></a>00415 <span class="comment">// Get the length of the name</span>
<a name="l00416"></a>00416 boost::uint16_t length_name = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_uncompressed_ptr);
<a name="l00417"></a>00417 std::string name = <span class="stringliteral">""</span>;
<a name="l00418"></a>00418
<a name="l00419"></a>00419 m_uncompressed_ptr += 2;
<a name="l00420"></a>00420
<a name="l00421"></a>00421 {
<a name="l00422"></a>00422 <span class="keywordflow">for</span>(boost::uint16_t count = 0; count < length_name; ++count){
<a name="l00423"></a>00423 name.push_back(*(m_uncompressed_ptr+count));
<a name="l00424"></a>00424 }
<a name="l00425"></a>00425 m_uncompressed_ptr += length_name;
<a name="l00426"></a>00426 }
<a name="l00427"></a>00427
<a name="l00428"></a>00428 <span class="comment">// Get the length of the value</span>
<a name="l00429"></a>00429 boost::uint16_t length_value = <a class="code" href="structpion_1_1algorithm.html#aa755b157b2cda061aec92c49b7ee9dac" title="convert sequence of two bytes to 16-bit unsigned integer">algorithm::to_uint16</a>(m_uncompressed_ptr);
<a name="l00430"></a>00430 std::string value = <span class="stringliteral">""</span>;
<a name="l00431"></a>00431
<a name="l00432"></a>00432 m_uncompressed_ptr += 2;
<a name="l00433"></a>00433
<a name="l00434"></a>00434 {
<a name="l00435"></a>00435 <span class="keywordflow">for</span>(boost::uint16_t count = 0; count < length_value; ++count){
<a name="l00436"></a>00436 value.push_back(*(m_uncompressed_ptr+count));
<a name="l00437"></a>00437 }
<a name="l00438"></a>00438 m_uncompressed_ptr += length_value;
<a name="l00439"></a>00439 }
<a name="l00440"></a>00440
<a name="l00441"></a>00441 <span class="comment">// Save these headers</span>
<a name="l00442"></a>00442 http_info.http_headers.insert(std::make_pair(name, value));
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444 }
<a name="l00445"></a>00445
<a name="l00446"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#aae6750b7a90921dd6d8bc2da50cc1aa7">00446</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#aae6750b7a90921dd6d8bc2da50cc1aa7">parser::parse_spdy_data</a>(boost::system::error_code &ec,
<a name="l00447"></a>00447 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame,
<a name="l00448"></a>00448 boost::uint32_t stream_id,
<a name="l00449"></a>00449 <a class="code" href="structpion_1_1spdy_1_1__http__protocol__info__t.html" title="This structure contains the HTTP Protocol information.">http_protocol_info</a>& http_info)
<a name="l00450"></a>00450 {
<a name="l00451"></a>00451 <span class="comment">// This marks the finish flag</span>
<a name="l00452"></a>00452 <span class="keywordflow">if</span> (frame.flags & SPDY_FLAG_FIN){
<a name="l00453"></a>00453 http_info.last_chunk = <span class="keyword">true</span>;
<a name="l00454"></a>00454 }
<a name="l00455"></a>00455 }
<a name="l00456"></a>00456
<a name="l00457"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#ad69dd18af5afc1b6d84d743c3d21d8e0">00457</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#ad69dd18af5afc1b6d84d743c3d21d8e0">parser::parse_spdy_rst_stream</a>(boost::system::error_code &ec,
<a name="l00458"></a>00458 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame)
<a name="l00459"></a>00459 {
<a name="l00460"></a>00460 boost::uint32_t stream_id = 0;
<a name="l00461"></a>00461 boost::uint32_t status_code = 0;
<a name="l00462"></a>00462
<a name="l00463"></a>00463 <span class="comment">// First complete the check for size and flag</span>
<a name="l00464"></a>00464 <span class="comment">// The flag for RST frame should be 0, The length should be 8</span>
<a name="l00465"></a>00465 <span class="keywordflow">if</span>(frame.flags != 0 || frame.length != 8 ){
<a name="l00466"></a>00466 <span class="keywordflow">return</span>;
<a name="l00467"></a>00467 }
<a name="l00468"></a>00468
<a name="l00469"></a>00469 <span class="comment">// Get the 31 bit stream id</span>
<a name="l00470"></a>00470
<a name="l00471"></a>00471 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00472"></a>00472 stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00473"></a>00473
<a name="l00474"></a>00474 m_read_ptr += 4;
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="comment">// Get the status code</span>
<a name="l00477"></a>00477
<a name="l00478"></a>00478 status_code = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00479"></a>00479
<a name="l00480"></a>00480 <span class="comment">// Check the index before using the stream status array</span>
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="keywordflow">if</span>(status_code >=1 && status_code <= 12){
<a name="l00483"></a>00483
<a name="l00484"></a>00484 PION_LOG_INFO(m_logger,
<a name="l00485"></a>00485 <span class="stringliteral">"SPDY "</span> << <span class="stringliteral">"Status Code is : "</span>
<a name="l00486"></a>00486 << rst_stream_status_names[status_code].str);
<a name="l00487"></a>00487 }<span class="keywordflow">else</span>{
<a name="l00488"></a>00488 PION_LOG_INFO(m_logger, <span class="stringliteral">"SPDY RST Invalid status code : "</span> << status_code);
<a name="l00489"></a>00489 }
<a name="l00490"></a>00490 }
<a name="l00491"></a>00491
<a name="l00492"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a22199322320ed1a68407b438a898d98b">00492</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a22199322320ed1a68407b438a898d98b">parser::parse_spdy_ping_frame</a>(boost::system::error_code &ec,
<a name="l00493"></a>00493 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame)
<a name="l00494"></a>00494 {
<a name="l00495"></a>00495 <span class="comment">// First complete the check for size </span>
<a name="l00496"></a>00496 <span class="comment">// The length should be 4 always</span>
<a name="l00497"></a>00497 <span class="keywordflow">if</span>(frame.length != 4){
<a name="l00498"></a>00498 <span class="keywordflow">return</span>;
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501 boost::uint32_t ping_id = 0;
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="comment">// Get the 32 bit ping id</span>
<a name="l00504"></a>00504
<a name="l00505"></a>00505 ping_id = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00506"></a>00506
<a name="l00507"></a>00507 m_read_ptr += 4;
<a name="l00508"></a>00508
<a name="l00509"></a>00509 PION_LOG_INFO(m_logger, <span class="stringliteral">"SPDY "</span> << <span class="stringliteral">"Ping ID is : "</span> << ping_id);
<a name="l00510"></a>00510 }
<a name="l00511"></a>00511
<a name="l00512"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a36bd7ae76e3796cf4f99a30aa728c800">00512</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a36bd7ae76e3796cf4f99a30aa728c800">parser::parse_spdy_settings_frame</a>(boost::system::error_code &ec,
<a name="l00513"></a>00513 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame)
<a name="l00514"></a>00514 {
<a name="l00515"></a>00515 <span class="comment">// Can ignore this frame for our purposes</span>
<a name="l00516"></a>00516 }
<a name="l00517"></a>00517
<a name="l00518"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#ae213965a7a77b4cfb385bfa8685c3e50">00518</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#ae213965a7a77b4cfb385bfa8685c3e50">parser::parse_spdy_goaway_frame</a>(boost::system::error_code &ec,
<a name="l00519"></a>00519 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame)
<a name="l00520"></a>00520 {
<a name="l00521"></a>00521 <span class="comment">// First complete the check for size</span>
<a name="l00522"></a>00522 <span class="comment">// The length should be 4 always</span>
<a name="l00523"></a>00523 <span class="keywordflow">if</span>(frame.length != 4){
<a name="l00524"></a>00524 <span class="keywordflow">return</span>;
<a name="l00525"></a>00525 }
<a name="l00526"></a>00526
<a name="l00527"></a>00527 boost::uint32_t last_good_stream_id = 0;
<a name="l00528"></a>00528 boost::uint32_t status_code = 0;
<a name="l00529"></a>00529
<a name="l00530"></a>00530 <span class="comment">// Get the 31 bit stream id</span>
<a name="l00531"></a>00531
<a name="l00532"></a>00532 boost::uint32_t four_bytes = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00533"></a>00533 last_good_stream_id = four_bytes & 0x7FFFFFFF;
<a name="l00534"></a>00534
<a name="l00535"></a>00535 m_read_ptr += 4;
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="comment">// Get the status code</span>
<a name="l00538"></a>00538
<a name="l00539"></a>00539 status_code = <a class="code" href="structpion_1_1algorithm.html#af2092366e2a82fbfc456bceb15a0f599" title="convert sequence of four bytes to 32-bit unsigned integer">algorithm::to_uint32</a>(m_read_ptr);
<a name="l00540"></a>00540
<a name="l00541"></a>00541 <span class="comment">// Chek if there was an error</span>
<a name="l00542"></a>00542 <span class="keywordflow">if</span>(status_code == 1){
<a name="l00543"></a>00543
<a name="l00544"></a>00544 PION_LOG_ERROR(m_logger, <span class="stringliteral">"There was a Protocol Error"</span>);
<a name="l00545"></a>00545 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_PROTOCOL_ERROR);
<a name="l00546"></a>00546 <span class="keywordflow">return</span>;
<a name="l00547"></a>00547 }<span class="keywordflow">else</span> <span class="keywordflow">if</span> (status_code == 11) {
<a name="l00548"></a>00548
<a name="l00549"></a>00549 PION_LOG_ERROR(m_logger, <span class="stringliteral">"There was an Internal Error"</span>);
<a name="l00550"></a>00550 <a class="code" href="classpion_1_1spdy_1_1parser.html#a8caaf3917f65aeab5feee513e8b656b5">set_error</a>(ec, ERROR_INTERNAL_SPDY_ERROR);
<a name="l00551"></a>00551 <span class="keywordflow">return</span>;
<a name="l00552"></a>00552 }
<a name="l00553"></a>00553
<a name="l00554"></a>00554 PION_LOG_INFO(m_logger, <span class="stringliteral">"SPDY "</span> << <span class="stringliteral">"Status Code is : "</span> << status_code);
<a name="l00555"></a>00555
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a><a class="code" href="classpion_1_1spdy_1_1parser.html#a0ce476c60751c29909aec2af32b5b64e">00558</a> <span class="keywordtype">void</span> <a class="code" href="classpion_1_1spdy_1_1parser.html#a0ce476c60751c29909aec2af32b5b64e">parser::parse_spdy_window_update_frame</a>(boost::system::error_code &ec,
<a name="l00559"></a>00559 <span class="keyword">const</span> <a class="code" href="structpion_1_1spdy_1_1spdy__control__frame__info.html" title="This structure will be tied to each SPDY frame.">spdy_control_frame_info</a>& frame)
<a name="l00560"></a>00560 {
<a name="l00561"></a>00561 <span class="comment">// TBD : Do we really need this for our purpose</span>
<a name="l00562"></a>00562 }
<a name="l00563"></a>00563
<a name="l00564"></a>00564 } <span class="comment">// end namespace spdy</span>
<a name="l00565"></a>00565 } <span class="comment">// end namespace pion</span>
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