208 lines
5.2 KiB
Ragel
Executable File
208 lines
5.2 KiB
Ragel
Executable File
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/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tsip_header_Referred_By.c
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* @brief SIP Referred-By header as per RFC 3892.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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*/
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#include "tinysip/headers/tsip_header_Referred_By.h"
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#include "tinysip/parsers/tsip_parser_uri.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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/***********************************
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* Ragel state machine.
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*/
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%%{
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machine tsip_machine_parser_header_Referred_By;
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# Includes
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include tsip_machine_utils "./ragel/tsip_machine_utils.rl";
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action tag{
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tag_start = p;
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}
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action parse_uri{
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if(!r_by->uri) /* Only one URI */{
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int len = (int)(p - tag_start);
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if(r_by && !r_by->uri){
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if((r_by->uri = tsip_uri_parse(tag_start, (tsk_size_t)len)) && r_by->display_name){
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r_by->uri->display_name = tsk_strdup(r_by->display_name);
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}
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}
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}
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}
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action parse_display_name{
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if(!r_by->display_name){
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TSK_PARSER_SET_STRING(r_by->display_name);
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tsk_strunquote(&r_by->display_name);
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}
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}
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action parse_cid{
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TSK_PARSER_SET_STRING(r_by->cid);
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}
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action parse_param{
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TSK_PARSER_ADD_PARAM(TSIP_HEADER_PARAMS(r_by));
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}
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action eob{
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}
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URI = (scheme HCOLON any+)>tag %parse_uri;
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display_name = (( token LWS )+ | quoted_string)>tag %parse_display_name;
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my_name_addr = display_name? :>LAQUOT<: URI :>RAQUOT;
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referrer_uri = ( my_name_addr>0 | URI>1 );
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atom = ( alphanum | "-" | "!" | "%" | "*" | "_" | "+" | "'" | "`" | "~" )+;
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dot_atom = atom ( "." atom )*;
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sip_clean_msg_id = LDQUOT dot_atom "@" ( dot_atom | host ) RDQUOT;
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referredby_id_param = "cid"i EQUAL sip_clean_msg_id>tag %parse_cid;
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Referred_By = ( "Referred-By"i | "b"i ) HCOLON referrer_uri ( SEMI ( referredby_id_param | generic_param>tag %parse_param ) )*;
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# Entry point
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main := Referred_By :>CRLF @eob;
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}%%
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tsip_header_Referred_By_t* tsip_header_Referred_By_create(const tsip_uri_t* uri, const char* cid)
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{
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return tsk_object_new(TSIP_HEADER_REFERRED_BY_VA_ARGS(uri, cid));
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}
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tsip_header_Referred_By_t* tsip_header_Referred_By_create_null()
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{
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return tsip_header_Referred_By_create(tsk_null, tsk_null);
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}
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int tsip_header_Referred_By_serialize(const tsip_header_t* header, tsk_buffer_t* output)
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{
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if(header){
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int ret;
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const tsip_header_Referred_By_t *Referred_By = (const tsip_header_Referred_By_t *)header;
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/* Uri with hacked display-name*/
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if((ret = tsip_uri_serialize(Referred_By->uri, tsk_true, tsk_true, output))){
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return ret;
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}
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/* cid */
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if(Referred_By->cid && (ret = tsk_buffer_append_2(output, ";cid=%s", Referred_By->cid))){
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return ret;
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}
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return ret;
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}
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return -1;
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}
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tsip_header_Referred_By_t *tsip_header_Referred_By_parse(const char *data, tsk_size_t size)
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{
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int cs = 0;
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const char *p = data;
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const char *pe = p + size;
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const char *eof = pe;
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tsip_header_Referred_By_t *r_by = tsip_header_Referred_By_create_null();
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const char *tag_start = tsk_null;
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%%write data;
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(void)(eof);
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(void)(tsip_machine_parser_header_Referred_By_first_final);
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(void)(tsip_machine_parser_header_Referred_By_error);
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(void)(tsip_machine_parser_header_Referred_By_en_main);
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%%write init;
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%%write exec;
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if( cs < %%{ write first_final; }%% ){
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TSK_DEBUG_ERROR("Failed to parse 'Referred-By' header.");
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TSK_OBJECT_SAFE_FREE(r_by);
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}
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return r_by;
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}
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//========================================================
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// Referred_By header object definition
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//
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static tsk_object_t* tsip_header_Referred_By_ctor(tsk_object_t *self, va_list * app)
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{
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tsip_header_Referred_By_t *Referred_By = self;
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if(Referred_By){
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const tsip_uri_t* uri = va_arg(*app, const tsip_uri_t*);
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const char* cid = va_arg(*app, const char*);
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TSIP_HEADER(Referred_By)->type = tsip_htype_Referred_By;
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TSIP_HEADER(Referred_By)->serialize = tsip_header_Referred_By_serialize;
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Referred_By->uri = tsk_object_ref((void*)uri);
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Referred_By->cid = tsk_strdup(cid);
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new Referred_By header.");
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}
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return self;
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}
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static tsk_object_t* tsip_header_Referred_By_dtor(tsk_object_t *self)
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{
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tsip_header_Referred_By_t *Referred_By = self;
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if(Referred_By){
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TSK_FREE(Referred_By->display_name);
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TSK_OBJECT_SAFE_FREE(Referred_By->uri);
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TSK_FREE(Referred_By->cid);
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TSK_OBJECT_SAFE_FREE(TSIP_HEADER_PARAMS(Referred_By));
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}
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else{
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TSK_DEBUG_ERROR("Null Referred_By header.");
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}
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return self;
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}
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static const tsk_object_def_t tsip_header_Referred_By_def_s =
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{
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sizeof(tsip_header_Referred_By_t),
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tsip_header_Referred_By_ctor,
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tsip_header_Referred_By_dtor,
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tsk_null
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};
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const tsk_object_def_t *tsip_header_Referred_By_def_t = &tsip_header_Referred_By_def_s;
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