doubango/tinySIP/ragel/tsip_parser_header_Contact.rl
c732d49e
 /*
 * Copyright (C) 2010-2011 Mamadou Diop.
 *
 * Contact: Mamadou Diop <diopmamadou(at)doubango[dot]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_header_Contact.c
  * @brief SIP Contact/m header.
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #include "tinysip/headers/tsip_header_Contact.h"
 
 #include "tinysip/parsers/tsip_parser_uri.h"
 
 #include "tsk_debug.h"
 #include "tsk_memory.h"
 
 
 
 /***********************************
 *	Ragel state machine.
 */
 %%{
 	machine tsip_machine_parser_header_Contact;
 
 	# Includes
 	include tsip_machine_utils "./ragel/tsip_machine_utils.rl";
 	
 	action tag{
 		tag_start = p;
 	}
 
 	action create_contact{
 		if(!curr_contact){
 			curr_contact = tsip_header_Contact_create();
 		}
 	}
 
 	action parse_display_name{
 		if(curr_contact){
 			TSK_PARSER_SET_STRING(curr_contact->display_name);
 			tsk_strunquote(&curr_contact->display_name);
 		}
 	}
 
 	action parse_uri{
 		if(curr_contact && !curr_contact->uri){
 			int len = (int)(p  - tag_start);
 			if((curr_contact->uri = tsip_uri_parse(tag_start, (tsk_size_t)len)) && curr_contact->display_name){
 				curr_contact->uri->display_name = tsk_strdup(curr_contact->display_name);
 			}
 		}
 	}
 
 	action parse_expires{
 		if(curr_contact){
 			TSK_PARSER_SET_INTEGER(curr_contact->expires);
 		}
 	}
 
 	action parse_param{
 		if(curr_contact){
 			TSK_PARSER_ADD_PARAM(TSIP_HEADER_PARAMS(curr_contact));
 		}
 	}
 
 	action add_contact{
 		if(curr_contact){
 			tsk_list_push_back_data(hdr_contacts, ((void**) &curr_contact));
 		}
 	}
 	
 	action eob{
 	}
 	
 	URI = (scheme HCOLON any+)>tag %parse_uri;
 	display_name = (( token LWS )+ | quoted_string)>tag %parse_display_name;
 	my_name_addr = display_name? :>LAQUOT<: URI :>RAQUOT;
 	
 	c_p_expires = "expires"i EQUAL delta_seconds>tag %parse_expires;
 	contact_extension = (generic_param)>tag %parse_param;
 	contact_params = c_p_expires@1 | contact_extension@0;
 	contact_param = ( (my_name_addr | URI) :> (SEMI contact_params)* ) >create_contact %add_contact;
 	Contact = ( "Contact"i | "m"i ) HCOLON ( STAR | ( contact_param ( COMMA contact_param )* ) );
 	
 	# Entry point
 	main := Contact :>CRLF @eob;
 
 }%%
 
 
 tsip_header_Contact_t* tsip_header_Contact_create()
 {
 	return tsk_object_new(tsip_header_Contact_def_t);
 }
 
 int tsip_header_Contact_serialize(const tsip_header_t* header, tsk_buffer_t* output)
 {
 	if(header){
 		const tsip_header_Contact_t *Contact = (const tsip_header_Contact_t *)header;
 		int ret = 0;
 		
 		/* Uri with hacked display-name*/
 		if((ret = tsip_uri_serialize(Contact->uri, tsk_true, tsk_true, output))){
 			return ret;
 		}
 
 		/* Expires */
 		if(Contact->expires >=0){
 			tsk_buffer_append_2(output, ";expires=%lld", Contact->expires);
 		}
 		
 		return ret;
 	}
 
 	return -1;
 }
 
 
 tsip_header_Contacts_L_t *tsip_header_Contact_parse(const char *data, tsk_size_t size)
 {
 	int cs = 0;
 	const char *p = data;
 	const char *pe = p + size;
 	const char *eof = pe;
 	tsip_header_Contacts_L_t *hdr_contacts = tsk_list_create();
 	
 	const char *tag_start = tsk_null;
 	tsip_header_Contact_t *curr_contact = 0;
 
 	%%write data;
 	(void)(eof);
 	(void)(tsip_machine_parser_header_Contact_first_final);
 	(void)(tsip_machine_parser_header_Contact_error);
 	(void)(tsip_machine_parser_header_Contact_en_main);
 	%%write init;
 	%%write exec;
 	
 	if( cs < %%{ write first_final; }%% ){
 		TSK_DEBUG_ERROR("Failed to parse SIP 'Contact' header.");
 		TSK_OBJECT_SAFE_FREE(curr_contact);
 		TSK_OBJECT_SAFE_FREE(hdr_contacts);
 	}
 	
 	return hdr_contacts;
 }
 
 
 
 
 //========================================================
 //	Contact header object definition
 //
 
 static tsk_object_t* tsip_header_Contact_ctor(tsk_object_t *self, va_list * app)
 {
 	tsip_header_Contact_t *Contact = self;
 	if(Contact){
 		TSIP_HEADER(Contact)->type = tsip_htype_Contact;
 		TSIP_HEADER(Contact)->serialize = tsip_header_Contact_serialize;
 		Contact->expires = -1;
 	}
 	else{
 		TSK_DEBUG_ERROR("Failed to create new Contact header.");
 	}
 	return self;
 }
 
 static tsk_object_t* tsip_header_Contact_dtor(tsk_object_t *self)
 {
 	tsip_header_Contact_t *Contact = self;
 	if(Contact){
 		TSK_FREE(Contact->display_name);
 		TSK_OBJECT_SAFE_FREE(Contact->uri);
 
 		TSK_OBJECT_SAFE_FREE(TSIP_HEADER_PARAMS(Contact));
 	}
 	else{
 		TSK_DEBUG_ERROR("Null Contact header.");
 	}
 
 	return self;
 }
 
 static const tsk_object_def_t tsip_header_Contact_def_s = 
 {
 	sizeof(tsip_header_Contact_t),
 	tsip_header_Contact_ctor,
 	tsip_header_Contact_dtor,
 	tsk_null
 };
 const tsk_object_def_t *tsip_header_Contact_def_t = &tsip_header_Contact_def_s;
 
 
 ////========================================================
 ////	Contact object definition
 ////
 //
 ///**@ingroup tsip_header_Contact_group
 //*/
 //static tsk_object_t* tsip_contact_ctor(tsk_object_t *self, va_list * app)
 //{
 //	tsip_contact_t *contact = self;
 //	if(contact)
 //	{
 //		contact->expires = -1;
 //	}
 //	else
 //	{
 //		TSK_DEBUG_ERROR("Failed to create new Contact object.");
 //	}
 //	return self;
 //}
 //
 //static tsk_object_t* tsip_contact_dtor(tsk_object_t *self)
 //{
 //	tsip_contact_t *contact = self;
 //	if(contact)
 //	{
 //		TSK_FREE(contact->display_name);
 //		TSK_OBJECT_SAFE_FREE(TSIP_HEADER_PARAMS(contact));
 //
 //		TSK_OBJECT_SAFE_FREE(contact->uri);
 //	}
 //	else TSK_DEBUG_ERROR("Null Contact object.");
 //
 //	return self;
 //}
 //
 //static const tsk_object_def_t tsip_contact_def_s = 
 //{
 //	sizeof(tsip_contact_t),
 //	tsip_contact_ctor,
 //	tsip_contact_dtor,
 //	0
 //};
 //const void *tsip_contact_def_t = &tsip_contact_def_s;