| c732d49e |
* Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
*
* The original file was part of Open Source Doubango Framework
* Copyright (C) 2010-2011 Mamadou Diop.
* Copyright (C) 2012 Doubango Telecom <http://doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
/**@file thttp_parser_message.c
* @brief HTTP parser.
*
*/
#include "tinyhttp/parsers/thttp_parser_message.h"
#include "tinyhttp/parsers/thttp_parser_header.h"
#include "tinyhttp/parsers/thttp_parser_url.h"
#include "tsk_debug.h"
#include "tsk_memory.h"
static void thttp_message_parser_execute(tsk_ragel_state_t *state, thttp_message_t *message, tsk_bool_t extract_content);
static void thttp_message_parser_init(tsk_ragel_state_t *state);
static void thttp_message_parser_eoh(tsk_ragel_state_t *state, thttp_message_t *message, tsk_bool_t extract_content);
/***********************************
* Ragel state machine.
*/
/* #line 159 "./ragel/thttp_parser_message.rl" */
TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
/* Regel data */
/* #line 50 "./src/parsers/thttp_parser_message.c" */
static const char _thttp_machine_parser_message_actions[] = {
0, 1, 0, 1, 1, 1, 2, 1,
3, 1, 4, 1, 5, 1, 6, 1,
7, 2, 0, 5, 2, 6, 0
};
static const unsigned char _thttp_machine_parser_message_key_offsets[] = {
0, 0, 16, 31, 31, 32, 34, 36,
38, 40, 41, 43, 46, 48, 51, 52,
53, 54, 55, 56, 57, 74, 91, 108,
122, 124, 127, 129, 132, 134, 136, 138,
139, 155, 171, 177, 183
};
static const char _thttp_machine_parser_message_trans_keys[] = {
33, 37, 39, 72, 104, 126, 42, 43,
45, 46, 48, 57, 65, 90, 95, 122,
32, 33, 37, 39, 126, 42, 43, 45,
46, 48, 57, 65, 90, 95, 122, 32,
72, 104, 84, 116, 84, 116, 80, 112,
47, 48, 57, 46, 48, 57, 48, 57,
13, 48, 57, 10, 13, 13, 10, 13,
10, 32, 33, 37, 39, 84, 116, 126,
42, 43, 45, 46, 48, 57, 65, 90,
95, 122, 32, 33, 37, 39, 84, 116,
126, 42, 43, 45, 46, 48, 57, 65,
90, 95, 122, 32, 33, 37, 39, 80,
112, 126, 42, 43, 45, 46, 48, 57,
65, 90, 95, 122, 32, 33, 37, 39,
47, 126, 42, 43, 45, 57, 65, 90,
95, 122, 48, 57, 46, 48, 57, 48,
57, 32, 48, 57, 48, 57, 48, 57,
48, 57, 32, 13, 37, 60, 62, 96,
127, 0, 8, 10, 31, 34, 35, 91,
94, 123, 125, 13, 37, 60, 62, 96,
127, 0, 8, 10, 31, 34, 35, 91,
94, 123, 125, 48, 57, 65, 70, 97,
102, 48, 57, 65, 70, 97, 102, 0
};
static const char _thttp_machine_parser_message_single_lengths[] = {
0, 6, 5, 0, 1, 2, 2, 2,
2, 1, 0, 1, 0, 1, 1, 1,
1, 1, 1, 1, 7, 7, 7, 6,
0, 1, 0, 1, 0, 0, 0, 1,
6, 6, 0, 0, 0
};
static const char _thttp_machine_parser_message_range_lengths[] = {
0, 5, 5, 0, 0, 0, 0, 0,
0, 0, 1, 1, 1, 1, 0, 0,
0, 0, 0, 0, 5, 5, 5, 4,
1, 1, 1, 1, 1, 1, 1, 0,
5, 5, 3, 3, 0
};
static const unsigned char _thttp_machine_parser_message_index_offsets[] = {
0, 0, 12, 23, 24, 26, 29, 32,
35, 38, 40, 42, 45, 47, 50, 52,
54, 56, 58, 60, 62, 75, 88, 101,
112, 114, 117, 119, 122, 124, 126, 128,
130, 142, 154, 158, 162
};
static const char _thttp_machine_parser_message_indicies[] = {
0, 0, 0, 2, 2, 0, 0, 0,
0, 0, 0, 1, 3, 4, 4, 4,
4, 4, 4, 4, 4, 4, 1, 5,
7, 6, 8, 8, 1, 9, 9, 1,
10, 10, 1, 11, 11, 1, 12, 1,
13, 1, 14, 13, 1, 15, 1, 16,
15, 1, 17, 1, 19, 18, 21, 20,
22, 1, 24, 23, 25, 1, 3, 4,
4, 4, 26, 26, 4, 4, 4, 4,
4, 4, 1, 3, 4, 4, 4, 27,
27, 4, 4, 4, 4, 4, 4, 1,
3, 4, 4, 4, 28, 28, 4, 4,
4, 4, 4, 4, 1, 3, 4, 4,
4, 29, 4, 4, 4, 4, 4, 1,
30, 1, 31, 30, 1, 32, 1, 33,
32, 1, 34, 1, 35, 1, 36, 1,
37, 1, 39, 40, 1, 1, 1, 1,
1, 1, 1, 1, 1, 38, 42, 43,
1, 1, 1, 1, 1, 1, 1, 1,
1, 41, 44, 44, 44, 1, 41, 41,
41, 1, 45, 0
};
static const char _thttp_machine_parser_message_trans_targs[] = {
2, 0, 20, 3, 2, 4, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 19, 16, 17, 18, 16,
19, 36, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 14,
34, 33, 14, 34, 35, 36
};
static const char _thttp_machine_parser_message_trans_actions[] = {
1, 0, 1, 3, 0, 1, 0, 5,
1, 0, 0, 0, 0, 0, 0, 0,
7, 0, 1, 0, 0, 0, 0, 20,
13, 15, 0, 0, 0, 0, 0, 0,
0, 7, 1, 0, 0, 9, 1, 17,
1, 0, 11, 0, 0, 0
};
static const int thttp_machine_parser_message_start = 1;
static const int thttp_machine_parser_message_first_final = 36;
static const int thttp_machine_parser_message_error = 0;
static const int thttp_machine_parser_message_en_main = 1;
/* #line 165 "./ragel/thttp_parser_message.rl" */
TSK_RAGEL_DISABLE_WARNINGS_END()
/** Parses raw HTTP buffer.
*
* @param state Ragel state containing the buffer references.
* @param result @ref thttp_message_t object representing the raw buffer.
* @param extract_content Indicates wheteher to parse the message content or not. If set to true, then
* only headers will be parsed.
*
* @retval Zero if succeed and non-zero error code otherwise.
**/
int thttp_message_parse(tsk_ragel_state_t *state, thttp_message_t **result, tsk_bool_t extract_content)
{
if(!state || state->pe <= state->p){
return -1;
}
if(!*result){
*result = thttp_message_create();
}
/* Ragel init */
thttp_message_parser_init(state);
/*
* State mechine execution.
*/
thttp_message_parser_execute(state, *result, extract_content);
/* Check result */
if( state->cs <
/* #line 197 "./src/parsers/thttp_parser_message.c" */
36
/* #line 196 "./ragel/thttp_parser_message.rl" */
){
TSK_DEBUG_ERROR("Failed to parse HTTP message.");
TSK_OBJECT_SAFE_FREE(*result);
return -2;
}
return 0;
}
static void thttp_message_parser_init(tsk_ragel_state_t *state)
{
int cs = 0;
/* Regel machine initialization. */
/* #line 215 "./src/parsers/thttp_parser_message.c" */
{
cs = thttp_machine_parser_message_start;
}
/* #line 211 "./ragel/thttp_parser_message.rl" */
state->cs = cs;
}
static void thttp_message_parser_execute(tsk_ragel_state_t *state, thttp_message_t *message, tsk_bool_t extract_content)
{
int cs = state->cs;
const char *p = state->p;
const char *pe = state->pe;
const char *eof = state->eof;
TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
/* #line 234 "./src/parsers/thttp_parser_message.c" */
{
int _klen;
unsigned int _trans;
const char *_acts;
unsigned int _nacts;
const char *_keys;
if ( p == pe )
goto _test_eof;
if ( cs == 0 )
goto _out;
_resume:
_keys = _thttp_machine_parser_message_trans_keys + _thttp_machine_parser_message_key_offsets[cs];
_trans = _thttp_machine_parser_message_index_offsets[cs];
_klen = _thttp_machine_parser_message_single_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + _klen - 1;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + ((_upper-_lower) >> 1);
if ( (*p) < *_mid )
_upper = _mid - 1;
else if ( (*p) > *_mid )
_lower = _mid + 1;
else {
_trans += (_mid - _keys);
goto _match;
}
}
_keys += _klen;
_trans += _klen;
}
_klen = _thttp_machine_parser_message_range_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + (_klen<<1) - 2;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + (((_upper-_lower) >> 1) & ~1);
if ( (*p) < _mid[0] )
_upper = _mid - 2;
else if ( (*p) > _mid[1] )
_lower = _mid + 2;
else {
_trans += ((_mid - _keys)>>1);
goto _match;
}
}
_trans += _klen;
}
_match:
_trans = _thttp_machine_parser_message_indicies[_trans];
cs = _thttp_machine_parser_message_trans_targs[_trans];
if ( _thttp_machine_parser_message_trans_actions[_trans] == 0 )
goto _again;
_acts = _thttp_machine_parser_message_actions + _thttp_machine_parser_message_trans_actions[_trans];
_nacts = (unsigned int) *_acts++;
while ( _nacts-- > 0 )
{
switch ( *_acts++ )
{
case 0:
/* #line 43 "./ragel/thttp_parser_message.rl" */
{
state->tag_start = p;
}
break;
case 1:
/* #line 48 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(message->type == thttp_unknown){
message->type = thttp_request;
if(!message->line.request.method){
#if HAVE_CRT //Debug memory
message->line.request.method = calloc(1, len+1);
#else
message->line.request.method = tsk_calloc(1, len+1);
#endif //HAVE_CRT
memcpy(message->line.request.method, state->tag_start, len);
}
}
else{
state->cs = thttp_machine_parser_message_error;
}
}
break;
case 2:
/* #line 66 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(!message->line.request.url){
message->line.request.url = thttp_url_parse(state->tag_start, (tsk_size_t)len);
}
}
break;
case 3:
/* #line 77 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(!message->http_version){
#if HAVE_CRT //Debug memory
message->http_version = calloc(1, len+1);
#else
message->http_version = tsk_calloc(1, len+1);
#endif //HAVE_CRT
memcpy(message->http_version, state->tag_start, len);
}
}
break;
case 4:
/* #line 89 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(message->type == thttp_unknown){
message->type = thttp_response;
message->line.response.status_code = atoi(state->tag_start);
}
else{
state->cs = thttp_machine_parser_message_error;
}
}
break;
case 5:
/* #line 104 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(!message->line.response.reason_phrase){
#if HAVE_CRT //Debug memory
message->line.response.reason_phrase = calloc(1, len+1);
#else
message->line.response.reason_phrase = tsk_calloc(1, len+1);
#endif //HAVE_CRT
memcpy(message->line.response.reason_phrase, state->tag_start, len);
}
}
break;
case 6:
/* #line 116 "./ragel/thttp_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(thttp_header_parse(state, message)){
TSK_DEBUG_ERROR("Failed to parse header - %s", state->tag_start);
}
else{
//TSK_DEBUG_INFO("THTTP_MESSAGE_PARSER::PARSE_HEADER len=%d state=%d", len, state->cs);
}
}
break;
case 7:
/* #line 139 "./ragel/thttp_parser_message.rl" */
{
state->cs = cs;
state->p = p;
state->pe = pe;
state->eof = eof;
thttp_message_parser_eoh(state, message, extract_content);
cs = state->cs;
p = state->p;
pe = state->pe;
eof = state->eof;
}
break;
/* #line 418 "./src/parsers/thttp_parser_message.c" */
}
}
_again:
if ( cs == 0 )
goto _out;
if ( ++p != pe )
goto _resume;
_test_eof: {}
_out: {}
}
/* #line 224 "./ragel/thttp_parser_message.rl" */
TSK_RAGEL_DISABLE_WARNINGS_END()
state->cs = cs;
state->p = p;
state->pe = pe;
state->eof = eof;
}
static void thttp_message_parser_eoh(tsk_ragel_state_t *state, thttp_message_t *message, tsk_bool_t extract_content)
{
int cs = state->cs;
const char *p = state->p;
const char *pe = state->pe;
const char *eof = state->eof;
if(extract_content && message){
uint32_t clen = THTTP_MESSAGE_CONTENT_LENGTH(message);
if(clen){
if((p + clen)<pe && !message->Content){
message->Content = tsk_buffer_create((p+1), clen);
p = (p + clen);
}
else{
p = (pe - 1);
}
}
}
//%%write eof;
state->cs = cs;
state->p = p;
state->pe = pe;
state->eof = eof;
} |