#if HAVE_CRT
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#endif //HAVE_CRT
/* #line 1 "./ragel/tsip_parser_message.rl" */
/*
* Copyright (C) 2020, University of the Basque Country (UPV/EHU)
* 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 tsip_parser_message.c
* @brief SIP parser.
*
* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
*/
#include "tinysip/parsers/tsip_parser_message.h"
#include "tinysip/parsers/tsip_parser_header.h"
#include "tinysip/parsers/tsip_parser_uri.h"
#include "tsk_debug.h"
#include "tsk_memory.h"
static void tsip_message_parser_execute(tsk_ragel_state_t *state, tsip_message_t *message, tsk_bool_t extract_content);
static void tsip_message_parser_init(tsk_ragel_state_t *state);
static void tsip_message_parser_eoh(tsk_ragel_state_t *state, tsip_message_t *message, tsk_bool_t extract_content);
// Check if we have ",CRLF" ==> See WWW-Authenticate header
// As :>CRLF is preceded by any+ ==> p will be at least (start + 1)
// p point to CR
#define prev_not_comma(p) !(p &&( p[-1] == ',' || p[2] == '\t' || p[2] == ' ' ) )//for Proxy-Authentication \r\n\tDigest
/***********************************
* Ragel state machine.
*/
/* #line 187 "./ragel/tsip_parser_message.rl" */
/* Regel data */
/* #line 60 "./src/parsers/tsip_parser_message.c" */
static const char _tsip_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 char _tsip_machine_parser_message_cond_offsets[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2
};
static const char _tsip_machine_parser_message_cond_lengths[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 1, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0
};
static const short _tsip_machine_parser_message_cond_keys[] = {
13, 13, 10, 10, 0
};
static const char _tsip_machine_parser_message_cond_spaces[] = {
0, 0, 0
};
static const unsigned char _tsip_machine_parser_message_key_offsets[] = {
0, 0, 16, 31, 35, 47, 50, 50,
51, 53, 55, 57, 58, 60, 63, 65,
68, 69, 70, 76, 77, 78, 79, 96,
113, 127, 129, 132, 134, 137, 139, 141,
143, 144, 160, 176, 182, 188
};
static const short _tsip_machine_parser_message_trans_keys[] = {
33, 37, 39, 83, 115, 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, 65,
90, 97, 122, 9, 32, 43, 58, 45,
46, 48, 57, 65, 90, 97, 122, 9,
32, 58, 32, 83, 115, 73, 105, 80,
112, 47, 48, 57, 46, 48, 57, 48,
57, 13, 48, 57, 10, 13, 269, 525,
-128, 12, 14, 127, 522, 13, 10, 32,
33, 37, 39, 73, 105, 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 _tsip_machine_parser_message_single_lengths[] = {
0, 6, 5, 0, 4, 3, 0, 1,
2, 2, 2, 1, 0, 1, 0, 1,
1, 1, 2, 1, 1, 1, 7, 7,
6, 0, 1, 0, 1, 0, 0, 0,
1, 6, 6, 0, 0, 0
};
static const char _tsip_machine_parser_message_range_lengths[] = {
0, 5, 5, 2, 4, 0, 0, 0,
0, 0, 0, 0, 1, 1, 1, 1,
0, 0, 2, 0, 0, 0, 5, 5,
4, 1, 1, 1, 1, 1, 1, 1,
0, 5, 5, 3, 3, 0
};
static const unsigned char _tsip_machine_parser_message_index_offsets[] = {
0, 0, 12, 23, 26, 35, 39, 40,
42, 45, 48, 51, 53, 55, 58, 60,
63, 65, 67, 72, 74, 76, 78, 91,
104, 115, 117, 120, 122, 125, 127, 129,
131, 133, 145, 157, 161, 165
};
static const char _tsip_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,
5, 1, 6, 6, 7, 8, 7, 7,
7, 7, 1, 6, 6, 8, 1, 9,
10, 9, 11, 11, 1, 12, 12, 1,
13, 13, 1, 14, 1, 15, 1, 16,
15, 1, 17, 1, 18, 17, 1, 19,
1, 21, 20, 22, 23, 22, 22, 1,
24, 1, 26, 25, 27, 1, 3, 4,
4, 4, 28, 28, 4, 4, 4, 4,
4, 4, 1, 3, 4, 4, 4, 29,
29, 4, 4, 4, 4, 4, 4, 1,
3, 4, 4, 4, 30, 4, 4, 4,
4, 4, 1, 31, 1, 32, 31, 1,
33, 1, 34, 33, 1, 35, 1, 36,
1, 37, 1, 38, 1, 40, 41, 1,
1, 1, 1, 1, 1, 1, 1, 1,
39, 43, 44, 1, 1, 1, 1, 1,
1, 1, 1, 1, 42, 45, 45, 45,
1, 42, 42, 42, 1, 46, 0
};
static const char _tsip_machine_parser_message_trans_targs[] = {
2, 0, 22, 3, 2, 4, 5, 4,
6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 21, 18, 19,
20, 18, 21, 37, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34,
16, 35, 34, 16, 35, 36, 37
};
static const char _tsip_machine_parser_message_trans_actions[] = {
1, 0, 1, 3, 0, 1, 0, 0,
0, 0, 5, 1, 0, 0, 0, 0,
0, 0, 7, 0, 1, 0, 0, 0,
0, 20, 13, 15, 0, 0, 0, 0,
0, 0, 7, 1, 0, 0, 9, 1,
17, 1, 0, 11, 0, 0, 0
};
static const int tsip_machine_parser_message_start = 1;
static const int tsip_machine_parser_message_first_final = 37;
static const int tsip_machine_parser_message_error = 0;
static const int tsip_machine_parser_message_en_main = 1;
/* #line 192 "./ragel/tsip_parser_message.rl" */
tsk_bool_t tsip_message_parse(tsk_ragel_state_t *state, tsip_message_t **result, tsk_bool_t extract_content)
{
if(!state || state->pe <= state->p){
return tsk_false;
}
if(!*result){
*result = tsip_message_create();
}
/* Ragel init */
tsip_message_parser_init(state);
/*
* State mechine execution.
*/
tsip_message_parser_execute(state, *result, extract_content);
/* Check result */
if( state->cs <
/* #line 223 "./src/parsers/tsip_parser_message.c" */
37
/* #line 214 "./ragel/tsip_parser_message.rl" */
)
{
TSK_DEBUG_ERROR("Failed to parse SIP message: %s", state->p);
TSK_OBJECT_SAFE_FREE(*result);
return tsk_false;
}
return tsk_true;
}
static void tsip_message_parser_init(tsk_ragel_state_t *state)
{
int cs = 0;
/* Regel machine initialization. */
/* #line 242 "./src/parsers/tsip_parser_message.c" */
{
cs = tsip_machine_parser_message_start;
}
/* #line 230 "./ragel/tsip_parser_message.rl" */
state->cs = cs;
}
static void tsip_message_parser_execute(tsk_ragel_state_t *state, tsip_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;
/* #line 260 "./src/parsers/tsip_parser_message.c" */
{
int _klen;
unsigned int _trans;
short _widec;
const char *_acts;
unsigned int _nacts;
const short *_keys;
if ( p == pe )
goto _test_eof;
if ( cs == 0 )
goto _out;
_resume:
_widec = (*p);
_klen = _tsip_machine_parser_message_cond_lengths[cs];
_keys = _tsip_machine_parser_message_cond_keys + (_tsip_machine_parser_message_cond_offsets[cs]*2);
if ( _klen > 0 ) {
const short *_lower = _keys;
const short *_mid;
const short *_upper = _keys + (_klen<<1) - 2;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + (((_upper-_lower) >> 1) & ~1);
if ( _widec < _mid[0] )
_upper = _mid - 2;
else if ( _widec > _mid[1] )
_lower = _mid + 2;
else {
switch ( _tsip_machine_parser_message_cond_spaces[_tsip_machine_parser_message_cond_offsets[cs] + ((_mid - _keys)>>1)] ) {
case 0: {
_widec = (short)(128 + ((*p) - -128));
if (
/* #line 36 "./ragel/tsip_parser_message.rl" */
prev_not_comma(p)
) _widec += 256;
break;
}
}
break;
}
}
}
_keys = _tsip_machine_parser_message_trans_keys + _tsip_machine_parser_message_key_offsets[cs];
_trans = _tsip_machine_parser_message_index_offsets[cs];
_klen = _tsip_machine_parser_message_single_lengths[cs];
if ( _klen > 0 ) {
const short *_lower = _keys;
const short *_mid;
const short *_upper = _keys + _klen - 1;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + ((_upper-_lower) >> 1);
if ( _widec < *_mid )
_upper = _mid - 1;
else if ( _widec > *_mid )
_lower = _mid + 1;
else {
_trans += (_mid - _keys);
goto _match;
}
}
_keys += _klen;
_trans += _klen;
}
_klen = _tsip_machine_parser_message_range_lengths[cs];
if ( _klen > 0 ) {
const short *_lower = _keys;
const short *_mid;
const short *_upper = _keys + (_klen<<1) - 2;
while (1) {
if ( _upper < _lower )
break;
_mid = _lower + (((_upper-_lower) >> 1) & ~1);
if ( _widec < _mid[0] )
_upper = _mid - 2;
else if ( _widec > _mid[1] )
_lower = _mid + 2;
else {
_trans += ((_mid - _keys)>>1);
goto _match;
}
}
_trans += _klen;
}
_match:
_trans = _tsip_machine_parser_message_indicies[_trans];
cs = _tsip_machine_parser_message_trans_targs[_trans];
if ( _tsip_machine_parser_message_trans_actions[_trans] == 0 )
goto _again;
_acts = _tsip_machine_parser_message_actions + _tsip_machine_parser_message_trans_actions[_trans];
_nacts = (unsigned int) *_acts++;
while ( _nacts-- > 0 )
{
switch ( *_acts++ )
{
case 0:
/* #line 55 "./ragel/tsip_parser_message.rl" */
{
state->tag_start = p;
}
break;
case 1:
/* #line 61 "./ragel/tsip_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(message->type == tsip_unknown)
{
message->type = tsip_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);
message->line.request.request_type = tsip_request_get_type(message->line.request.method);
}
}
else
{
state->cs = tsip_machine_parser_message_error;
}
}
break;
case 2:
/* #line 84 "./ragel/tsip_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(!message->line.request.uri)
{
message->line.request.uri = tsip_uri_parse(state->tag_start, (tsk_size_t)len);
}
}
break;
case 3:
/* #line 97 "./ragel/tsip_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(!message->sip_version)
{
#if HAVE_CRT //Debug memory
message->sip_version = calloc(1, len+1);
#else
message->sip_version = tsk_calloc(1, len+1);
#endif //HAVE_CRT
memcpy(message->sip_version, state->tag_start, len);
}
}
break;
case 4:
/* #line 111 "./ragel/tsip_parser_message.rl" */
{
int len;
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(message->type == tsip_unknown)
{
message->type = tsip_response;
message->line.response.status_code = atoi(state->tag_start);
}
else
{
state->cs = tsip_machine_parser_message_error;
}
}
break;
case 5:
/* #line 129 "./ragel/tsip_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 = tsk_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 143 "./ragel/tsip_parser_message.rl" */
{
int len;
/*
char* end_str;
if(strstr(state->tag_start, "Proxy-Authenticate:") != NULL && (end_str=strstr(state->tag_end, "realm=")) != NULL) {
p=strstr(state->tag_end, "\r\n");
}
*/
state->tag_end = p;
len = (int)(state->tag_end - state->tag_start);
if(tsip_header_parse(state, message)){
//TSK_DEBUG_INFO("TSIP_MESSAGE_PARSER::PARSE_HEADER len=%d state=%d", len, state->cs);
}
else{
TSK_DEBUG_ERROR("Failed to parse header - %s", state->tag_start);
}
}
break;
case 7:
/* #line 167 "./ragel/tsip_parser_message.rl" */
{
state->cs = cs;
state->p = p;
state->pe = pe;
state->eof = eof;
tsip_message_parser_eoh(state, message, extract_content);
cs = state->cs;
p = state->p;
pe = state->pe;
eof = state->eof;
}
break;
/* #line 487 "./src/parsers/tsip_parser_message.c" */
}
}
_again:
if ( cs == 0 )
goto _out;
if ( ++p != pe )
goto _resume;
_test_eof: {}
_out: {}
}
/* #line 242 "./ragel/tsip_parser_message.rl" */
state->cs = cs;
state->p = p;
state->pe = pe;
state->eof = eof;
}
static void tsip_message_parser_eoh(tsk_ragel_state_t *state, tsip_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;
const char *eoh = (state->p + 1);
if(extract_content && message)
{
uint32_t clen = TSIP_MESSAGE_CONTENT_LENGTH(message);
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;
state->eoh = eoh;
}