| 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 tsdp_header_M.c
* @brief SDP "m=" header (Media Descriptions).
*
*/
#include "tinysdp/headers/tsdp_header_M.h"
#include "tsk_debug.h"
#include "tsk_memory.h"
#include "tsk_string.h"
#include <string.h>
/***********************************
* Ragel state machine.
*/
/* #line 78 "./ragel/tsdp_parser_header_M.rl" */
tsdp_header_M_t* tsdp_header_M_create(const char* media, uint32_t port, const char* proto)
{
return tsk_object_new(TSDP_HEADER_M_VA_ARGS(media, port, proto));
}
tsdp_header_M_t* tsdp_header_M_create_null()
{
return tsdp_header_M_create(tsk_null, 0, tsk_null);
}
tsdp_fmt_t* tsdp_fmt_create(const char* fmt)
{
return tsk_object_new(TSDP_FMT_VA_ARGS(fmt));
}
int tsdp_header_M_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
{
if(header){
const tsdp_header_M_t *M = (const tsdp_header_M_t *)header;
const tsk_list_item_t* item;
tsk_istr_t nports;
tsk_itoa(M->nports, &nports);
/* IMPORTANT: Keep the order.
m= (media name and transport address)
i=* (media title)
c=* (connection information -- optional if included at
session level)
b=* (zero or more bandwidth information lines)
k=* (encryption key)
a=* (zero or more media attribute lines)
*/
tsk_buffer_append_2(output, "%s %u%s%s %s",
M->media,
M->port,
M->nports ? "/" : "",
M->nports ? nports : "",
M->proto
);
// FMTs
tsk_list_foreach(item, M->FMTs){
tsk_buffer_append_2(output, " %s", TSDP_FMT_STR(item->data));
}
tsk_buffer_append(output, "\r\n", 2); // close the "m=" line.
// i=* (media title)
if(M->I){
tsdp_header_serialize(TSDP_HEADER(M->I), output);
}
// c=* (connection information -- optional if included at session level)
if(M->C){
tsdp_header_serialize(TSDP_HEADER(M->C), output);
}
// b=* (zero or more bandwidth information lines)
if(M->Bandwidths){
tsk_list_foreach(item, M->Bandwidths){
tsdp_header_serialize(TSDP_HEADER(item->data), output);
}
}
// k=* (encryption key)
if(M->K){
tsdp_header_serialize(TSDP_HEADER(M->K), output);
}
// a=* (zero or more media attribute lines)
if(M->Attributes){
tsk_list_foreach(item, M->Attributes){
tsdp_header_serialize(TSDP_HEADER(item->data), output);
}
}
return 0;
}
return -1;
}
tsdp_header_t* tsdp_header_M_clone(const tsdp_header_t* header)
{
if(header){
const tsdp_header_M_t *M = (const tsdp_header_M_t *)header;
tsdp_header_M_t* clone;
const tsk_list_item_t* item;
if((clone = tsdp_header_M_create(M->media, M->port, M->proto))){
clone->nports = M->nports;
// Formats
tsk_list_foreach(item, M->FMTs){
tsk_string_t* string = tsk_string_create(TSK_STRING_STR(item->data));
tsk_list_push_back_data(clone->FMTs, (void**)&string);
}
// I
clone->I = (tsdp_header_I_t*) (M->I ? TSDP_HEADER(M->I)->clone(TSDP_HEADER(M->I)) : tsk_null);
// C
clone->C = (tsdp_header_C_t*) (M->C ? TSDP_HEADER(M->C)->clone(TSDP_HEADER(M->C)) : tsk_null);
// Bandwidths
tsk_list_foreach(item, M->Bandwidths){
tsdp_header_t* B;
if(!clone->Bandwidths){
clone->Bandwidths = tsk_list_create();
}
B = ((tsdp_header_t*)item->data)->clone((tsdp_header_t*)item->data);
tsk_list_push_back_data(clone->Bandwidths, (void**)&B);
}
// K
clone->K = (tsdp_header_K_t*) (M->K ? TSDP_HEADER(M->K)->clone(TSDP_HEADER(M->K)) : tsk_null);
// Attributes
tsk_list_foreach(item, M->Attributes){
tsdp_header_t* A;
if(!clone->Attributes){
clone->Attributes = tsk_list_create();
}
A = ((tsdp_header_t*)item->data)->clone((tsdp_header_t*)item->data);
tsk_list_push_back_data(clone->Attributes, (void**)&A);
}
}
return TSDP_HEADER(clone);
}
return tsk_null;
}
tsdp_header_M_t *tsdp_header_M_parse(const char *data, tsk_size_t size)
{
int cs = 0;
const char *p = data;
const char *pe = p + size;
const char *eof = pe;
tsdp_header_M_t *hdr_M = tsdp_header_M_create_null();
const char *tag_start = tsk_null;
TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
/* #line 184 "./src/headers/tsdp_header_M.c" */
static const char _tsdp_machine_parser_header_M_actions[] = {
0, 1, 0, 1, 1, 1, 2, 1,
3, 1, 4
};
static const char _tsdp_machine_parser_header_M_key_offsets[] = {
0, 0, 1, 3, 18, 33, 35, 39,
53, 54, 68, 70, 73, 88, 88, 103
};
static const char _tsdp_machine_parser_header_M_trans_keys[] = {
109, 32, 61, 32, 33, 37, 39, 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, 48, 57, 32, 47, 48, 57, 33,
37, 39, 126, 42, 43, 45, 46, 48,
57, 65, 90, 95, 122, 10, 33, 37,
39, 126, 42, 43, 45, 46, 48, 57,
65, 90, 95, 122, 48, 57, 32, 48,
57, 13, 32, 33, 37, 39, 47, 126,
42, 43, 45, 57, 65, 90, 95, 122,
13, 33, 37, 39, 126, 42, 43, 45,
46, 48, 57, 65, 90, 95, 122, 13,
32, 33, 37, 39, 126, 42, 43, 45,
46, 48, 57, 65, 90, 95, 122, 0
};
static const char _tsdp_machine_parser_header_M_single_lengths[] = {
0, 1, 2, 5, 5, 0, 2, 4,
1, 4, 0, 1, 7, 0, 5, 6
};
static const char _tsdp_machine_parser_header_M_range_lengths[] = {
0, 0, 0, 5, 5, 1, 1, 5,
0, 5, 1, 1, 4, 0, 5, 5
};
static const char _tsdp_machine_parser_header_M_index_offsets[] = {
0, 0, 2, 5, 16, 27, 29, 33,
43, 45, 55, 57, 60, 72, 73, 84
};
static const char _tsdp_machine_parser_header_M_indicies[] = {
0, 1, 0, 2, 1, 2, 3, 3,
3, 3, 3, 3, 3, 3, 3, 1,
4, 5, 5, 5, 5, 5, 5, 5,
5, 5, 1, 6, 1, 7, 8, 9,
1, 10, 10, 10, 10, 10, 10, 10,
10, 10, 1, 11, 1, 12, 12, 12,
12, 12, 12, 12, 12, 12, 1, 13,
1, 7, 14, 1, 15, 16, 12, 12,
12, 17, 12, 12, 12, 12, 12, 1,
1, 18, 19, 19, 19, 19, 19, 19,
19, 19, 19, 1, 20, 21, 22, 22,
22, 22, 22, 22, 22, 22, 22, 1,
0
};
static const char _tsdp_machine_parser_header_M_trans_targs[] = {
2, 0, 3, 4, 5, 4, 6, 7,
10, 6, 12, 13, 12, 11, 11, 8,
14, 9, 8, 15, 8, 14, 15
};
static const char _tsdp_machine_parser_header_M_trans_actions[] = {
0, 0, 0, 1, 3, 0, 1, 5,
5, 0, 1, 0, 0, 1, 0, 7,
7, 0, 0, 1, 9, 9, 0
};
static const char _tsdp_machine_parser_header_M_eof_actions[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 7, 0, 0, 9
};
static const int tsdp_machine_parser_header_M_start = 1;
static const int tsdp_machine_parser_header_M_first_final = 12;
static const int tsdp_machine_parser_header_M_error = 0;
static const int tsdp_machine_parser_header_M_en_main = 1;
/* #line 220 "./ragel/tsdp_parser_header_M.rl" */
(void)(tsdp_machine_parser_header_M_first_final);
(void)(tsdp_machine_parser_header_M_error);
(void)(tsdp_machine_parser_header_M_en_main);
/* #line 273 "./src/headers/tsdp_header_M.c" */
{
cs = tsdp_machine_parser_header_M_start;
}
/* #line 224 "./ragel/tsdp_parser_header_M.rl" */
/* #line 280 "./src/headers/tsdp_header_M.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 = _tsdp_machine_parser_header_M_trans_keys + _tsdp_machine_parser_header_M_key_offsets[cs];
_trans = _tsdp_machine_parser_header_M_index_offsets[cs];
_klen = _tsdp_machine_parser_header_M_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 = _tsdp_machine_parser_header_M_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 = _tsdp_machine_parser_header_M_indicies[_trans];
cs = _tsdp_machine_parser_header_M_trans_targs[_trans];
if ( _tsdp_machine_parser_header_M_trans_actions[_trans] == 0 )
goto _again;
_acts = _tsdp_machine_parser_header_M_actions + _tsdp_machine_parser_header_M_trans_actions[_trans];
_nacts = (unsigned int) *_acts++;
while ( _nacts-- > 0 )
{
switch ( *_acts++ )
{
case 0:
/* #line 43 "./ragel/tsdp_parser_header_M.rl" */
{
tag_start = p;
}
break;
case 1:
/* #line 47 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_SET_STRING(hdr_M->media);
}
break;
case 2:
/* #line 51 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_SET_UINT(hdr_M->port);
}
break;
case 3:
/* #line 59 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_SET_STRING(hdr_M->proto);
}
break;
case 4:
/* #line 63 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_ADD_STRING(hdr_M->FMTs);
}
break;
/* #line 384 "./src/headers/tsdp_header_M.c" */
}
}
_again:
if ( cs == 0 )
goto _out;
if ( ++p != pe )
goto _resume;
_test_eof: {}
if ( p == eof )
{
const char *__acts = _tsdp_machine_parser_header_M_actions + _tsdp_machine_parser_header_M_eof_actions[cs];
unsigned int __nacts = (unsigned int) *__acts++;
while ( __nacts-- > 0 ) {
switch ( *__acts++ ) {
case 3:
/* #line 59 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_SET_STRING(hdr_M->proto);
}
break;
case 4:
/* #line 63 "./ragel/tsdp_parser_header_M.rl" */
{
TSK_PARSER_ADD_STRING(hdr_M->FMTs);
}
break;
/* #line 412 "./src/headers/tsdp_header_M.c" */
}
}
}
_out: {}
}
/* #line 225 "./ragel/tsdp_parser_header_M.rl" */
TSK_RAGEL_DISABLE_WARNINGS_END()
if( cs <
/* #line 424 "./src/headers/tsdp_header_M.c" */
12
/* #line 227 "./ragel/tsdp_parser_header_M.rl" */
){
TSK_DEBUG_ERROR("Failed to parse \"m=\" header.");
TSK_OBJECT_SAFE_FREE(hdr_M);
}
return hdr_M;
}
// for A headers, use "tsdp_header_A_removeAll_by_field()"
int tsdp_header_M_remove(tsdp_header_M_t* self, tsdp_header_type_t type)
{
switch(type){
case tsdp_htype_I:
{
TSK_OBJECT_SAFE_FREE(self->I);
break;
}
case tsdp_htype_C:
{
TSK_OBJECT_SAFE_FREE(self->C);
break;
}
case tsdp_htype_B:
{
if(self->Bandwidths){
tsk_list_clear_items(self->Bandwidths);
}
break;
}
case tsdp_htype_K:
{
TSK_OBJECT_SAFE_FREE(self->K);
break;
}
}
return 0;
}
int tsdp_header_M_add(tsdp_header_M_t* self, const tsdp_header_t* header)
{
if(!self || !header){
return -1;
}
switch(header->type){
case tsdp_htype_I:
{
TSK_OBJECT_SAFE_FREE(self->I);
self->I = tsk_object_ref((void*)header);
break;
}
case tsdp_htype_C:
{
TSK_OBJECT_SAFE_FREE(self->C);
self->C = tsk_object_ref((void*)header);
break;
}
case tsdp_htype_B:
{
tsdp_header_t* B = tsk_object_ref((void*)header);
if(!self->Bandwidths){
self->Bandwidths = tsk_list_create();
}
tsk_list_push_back_data(self->Bandwidths, (void**)&B);
break;
}
case tsdp_htype_K:
{
TSK_OBJECT_SAFE_FREE(self->K);
self->K = tsk_object_ref((void*)header);
break;
}
case tsdp_htype_A:
{
tsdp_header_t* A = tsk_object_ref((void*)header);
if(!self->Attributes){
self->Attributes = tsk_list_create();
}
tsk_list_push_back_data(self->Attributes, (void**)&A);
break;
}
}
return 0;
}
int tsdp_header_M_add_headers(tsdp_header_M_t* self, ...)
{
const tsk_object_def_t* objdef;
tsdp_header_t *header;
tsdp_fmt_t* fmt;
va_list ap;
if(!self){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
va_start(ap, self);
while((objdef = va_arg(ap, const tsk_object_def_t*))){
if(objdef == tsdp_fmt_def_t){
if((fmt = tsk_object_new_2(objdef, &ap))){
tsk_list_push_back_data(self->FMTs, (void**)&fmt);
}
}
else{
if((header = tsk_object_new_2(objdef, &ap))){
tsdp_header_M_add(self, header);
TSK_OBJECT_SAFE_FREE(header);
}
}
}
va_end(ap);
return 0;
}
int tsdp_header_M_add_headers_2(tsdp_header_M_t* self, const tsdp_headers_L_t* headers)
{
const tsk_list_item_t* item;
if(!self || !headers){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
tsk_list_foreach(item, headers){
tsdp_header_M_add(self, item->data);
}
return 0;
}
int tsdp_header_M_add_fmt(tsdp_header_M_t* self, const char* fmt)
{
tsdp_fmt_t* _fmt;
if(!self || tsk_strnullORempty(fmt)){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
if((_fmt = tsdp_fmt_create(fmt))){
tsk_list_push_back_data(self->FMTs, (void**)&_fmt);
return 0;
}
else{
TSK_DEBUG_ERROR("Failed to create fmt object");
return -2;
}
}
int tsdp_header_M_remove_fmt(tsdp_header_M_t* self, const char* fmt)
{
const tsk_list_item_t* itemM;
const tsdp_fmt_t* _fmt;
char* fmt_plus_space = tsk_null;
tsk_size_t fmt_plus_space_len;
if(!self || tsk_strnullORempty(fmt)){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
tsk_sprintf(&fmt_plus_space, "%s ", fmt);
if((fmt_plus_space_len = tsk_strlen(fmt_plus_space))){
tsk_list_foreach(itemM, self->FMTs){
if(!(_fmt = (const tsdp_fmt_t*)itemM->data)){
continue;
}
if(tsk_striequals(_fmt->value, fmt)){
// remove all A headers using this attribute
const tsdp_header_A_t* A;
const tsk_list_item_t* itemA;
removeAttributes:
tsk_list_foreach(itemA, self->Attributes){
if(!(A = (const tsdp_header_A_t*)itemA->data)){
continue;
}
if(tsk_strindexOf(A->value, fmt_plus_space_len, fmt_plus_space) == 0){
// Guard to be sure we know what to remove. For example:
// tsdp_header_M_remove_fmt(self, 0) would remove both
// a=rtpmap:0 PCMU/8000/1
// a=crypto:0 AES_CM_128_HMAC_SHA1_32 inline:Gi8s25tDKDnd/xORJ/ZtRWWC1drVbax5Ve4ftCWd
// and cause issue 115: https://code.google.com/p/webrtc2sip/issues/detail?id=115
if(!tsk_striequals(A->field, "crypto")){
tsk_list_remove_item(self->Attributes, (tsk_list_item_t*)itemA);
goto removeAttributes;
}
}
}
tsk_list_remove_item(self->FMTs, (tsk_list_item_t*)itemM);
break;
}
}
}
TSK_FREE(fmt_plus_space);
return 0;
}
tsk_bool_t tsdp_header_M_have_fmt(tsdp_header_M_t* self, const char* fmt)
{
if(self &&! tsk_strnullORempty(fmt)){
const tsk_list_item_t* item;
const tsdp_fmt_t* _fmt;
tsk_list_foreach(item, self->FMTs){
if(!(_fmt = (const tsdp_fmt_t*)item->data)){
continue;
}
if(tsk_striequals(_fmt->value, fmt)){
return tsk_true;
}
}
}
return tsk_false;
}
const tsdp_header_A_t* tsdp_header_M_findA_at(const tsdp_header_M_t* self, const char* field, tsk_size_t index)
{
const tsk_list_item_t *item;
tsk_size_t pos = 0;
const tsdp_header_A_t* A;
if(!self){
TSK_DEBUG_ERROR("Invalid parameter");
return tsk_null;
}
tsk_list_foreach(item, self->Attributes){
if(!(A = item->data)){
continue;
}
if(tsk_strequals(A->field, field)){
if(pos++ >= index){
return A;
}
}
}
return tsk_null;
}
const tsdp_header_A_t* tsdp_header_M_findA(const tsdp_header_M_t* self, const char* field)
{
return tsdp_header_M_findA_at(self, field, 0);
}
char* tsdp_header_M_getAValue(const tsdp_header_M_t* self, const char* field, const char* fmt)
{
char *value = tsk_null; /* e.g. AMR-WB/16000 */
tsk_size_t i = 0, fmt_len, A_len;
int indexof;
const tsdp_header_A_t* A;
fmt_len = tsk_strlen(fmt); |