
/* #line 1 "./ragel/tmedia_content_cpim.rl" */
/*
* 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 tmedia_content_cpim.c
 * @brief Common Presence and Instant Messaging (CPIM): Message Format (RFC 3862)
 *
 * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
 *
 */
#include "tinymedia/content/tmedia_content_cpim.h"

#include "tsk_debug.h"
#include "tsk_memory.h"
#include "tsk_string.h"
#include "tsk_ragel_state.h"

#include <string.h>

/*	RFC 3862 - 2. Overall Message Structure
A complete message looks something like this:

      m: Content-type: Message/CPIM
      s:
      h: (message-metadata-headers)
      s:
      e: (encapsulated MIME message-body)

   The end of the message body is defined by the framing mechanism of
   the protocol used.  The tags 'm:', 's:', 'h:', 'e:', and 'x:' are not
   part of the message format and are used here to indicate the
   different parts of the message, thus:

      m:  MIME headers for the overall message
      s:  a blank separator line
      h:  message headers
      e:  encapsulated MIME object containing the message content
      x:  MIME security multipart message wrapper
*/





/***********************************
*	Ragel state machine.
*/

/* #line 129 "./ragel/tmedia_content_cpim.rl" */



static int tmedia_content_cpim_parse(tmedia_content_t* self, const void* in_data, tsk_size_t in_size)
{
	int cs = 0;
	const char *p = in_data;
	const char *pe = p + in_size;
	const char *eof = pe;
	
	const char *tag_start = tsk_null;

	char* hname = tsk_null;
	char* hvalue = tsk_null;
	tsk_bool_t parsing_mime_headers = tsk_true;

	
/* #line 88 "./src/content/tmedia_content_cpim.c" */
static const char _tmedia_machine_content_cpim_actions[] = {
	0, 1, 0, 1, 3, 1, 4, 1, 
	5, 2, 0, 4, 2, 0, 5, 2, 
	1, 0, 2, 2, 0
};

static const char _tmedia_machine_content_cpim_key_offsets[] = {
	0, 0, 14, 30, 32, 34, 35, 36, 
	51, 52, 66, 82, 84, 86, 87, 88, 
	103, 104, 104
};

static const char _tmedia_machine_content_cpim_trans_keys[] = {
	33, 37, 39, 126, 42, 43, 45, 46, 
	48, 57, 65, 90, 95, 122, 32, 33, 
	37, 39, 58, 126, 42, 43, 45, 46, 
	48, 57, 65, 90, 95, 122, 32, 58, 
	13, 32, 13, 10, 13, 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, 32, 33, 37, 39, 58, 126, 
	42, 43, 45, 46, 48, 57, 65, 90, 
	95, 122, 32, 58, 13, 32, 13, 10, 
	13, 33, 37, 39, 126, 42, 43, 45, 
	46, 48, 57, 65, 90, 95, 122, 10, 
	0
};

static const char _tmedia_machine_content_cpim_single_lengths[] = {
	0, 4, 6, 2, 2, 1, 1, 5, 
	1, 4, 6, 2, 2, 1, 1, 5, 
	1, 0, 0
};

static const char _tmedia_machine_content_cpim_range_lengths[] = {
	0, 5, 5, 0, 0, 0, 0, 5, 
	0, 5, 5, 0, 0, 0, 0, 5, 
	0, 0, 0
};

static const char _tmedia_machine_content_cpim_index_offsets[] = {
	0, 0, 10, 22, 25, 28, 30, 32, 
	43, 45, 55, 67, 70, 73, 75, 77, 
	88, 90, 91
};

static const char _tmedia_machine_content_cpim_indicies[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 1, 2, 3, 3, 3, 4, 3, 
	3, 3, 3, 3, 3, 1, 5, 6, 
	1, 8, 6, 7, 10, 9, 11, 1, 
	12, 13, 13, 13, 13, 13, 13, 13, 
	13, 13, 1, 14, 1, 15, 15, 15, 
	15, 15, 15, 15, 15, 15, 1, 16, 
	17, 17, 17, 18, 17, 17, 17, 17, 
	17, 17, 1, 19, 20, 1, 22, 20, 
	21, 24, 23, 25, 1, 26, 27, 27, 
	27, 27, 27, 27, 27, 27, 27, 1, 
	28, 1, 29, 30, 0
};

static const char _tmedia_machine_content_cpim_trans_targs[] = {
	2, 0, 3, 2, 4, 3, 4, 5, 
	6, 5, 6, 7, 8, 2, 9, 10, 
	11, 10, 12, 11, 12, 13, 14, 13, 
	14, 15, 16, 10, 17, 18, 18
};

static const char _tmedia_machine_content_cpim_trans_actions[] = {
	15, 0, 3, 0, 3, 0, 0, 1, 
	9, 0, 5, 0, 0, 1, 0, 18, 
	3, 0, 3, 0, 0, 1, 9, 0, 
	5, 0, 0, 1, 0, 1, 0
};

static const char _tmedia_machine_content_cpim_eof_actions[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 12, 7
};

static const int tmedia_machine_content_cpim_start = 1;
static const int tmedia_machine_content_cpim_first_final = 17;
static const int tmedia_machine_content_cpim_error = 0;

static const int tmedia_machine_content_cpim_en_main = 1;


/* #line 146 "./ragel/tmedia_content_cpim.rl" */
	(void)(eof);
	(void)(tmedia_machine_content_cpim_first_final);
	(void)(tmedia_machine_content_cpim_error);
	(void)(tmedia_machine_content_cpim_en_main);
	
/* #line 184 "./src/content/tmedia_content_cpim.c" */
	{
	cs = tmedia_machine_content_cpim_start;
	}

/* #line 151 "./ragel/tmedia_content_cpim.rl" */
	
/* #line 191 "./src/content/tmedia_content_cpim.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 = _tmedia_machine_content_cpim_trans_keys + _tmedia_machine_content_cpim_key_offsets[cs];
	_trans = _tmedia_machine_content_cpim_index_offsets[cs];

	_klen = _tmedia_machine_content_cpim_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 = _tmedia_machine_content_cpim_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 = _tmedia_machine_content_cpim_indicies[_trans];
	cs = _tmedia_machine_content_cpim_trans_targs[_trans];

	if ( _tmedia_machine_content_cpim_trans_actions[_trans] == 0 )
		goto _again;

	_acts = _tmedia_machine_content_cpim_actions + _tmedia_machine_content_cpim_trans_actions[_trans];
	_nacts = (unsigned int) *_acts++;
	while ( _nacts-- > 0 )
	{
		switch ( *_acts++ )
		{
	case 0:
/* #line 72 "./ragel/tmedia_content_cpim.rl" */
	{
		tag_start = p;
	}
	break;
	case 1:
/* #line 76 "./ragel/tmedia_content_cpim.rl" */
	{
		parsing_mime_headers = tsk_true;
	}
	break;
	case 2:
/* #line 80 "./ragel/tmedia_content_cpim.rl" */
	{
		parsing_mime_headers = tsk_false;
	}
	break;
	case 3:
/* #line 84 "./ragel/tmedia_content_cpim.rl" */
	{
		TSK_PARSER_SET_STRING(hname);
	}
	break;
	case 4:
/* #line 88 "./ragel/tmedia_content_cpim.rl" */
	{
		tmedia_content_header_t* header;
		TSK_PARSER_SET_STRING(hvalue);
		header = tmedia_content_header_create(hname, hvalue);
		TSK_FREE(hname); TSK_FREE(hvalue);

		if(parsing_mime_headers){
			if(!TMEDIA_CONTENT_CPIM(self)->m_headers){
				TMEDIA_CONTENT_CPIM(self)->m_headers = tsk_list_create();
			}
			tsk_list_push_back_data(TMEDIA_CONTENT_CPIM(self)->m_headers, (void**)&header);
		}
		else{
			if(!TMEDIA_CONTENT_CPIM(self)->h_headers){
				TMEDIA_CONTENT_CPIM(self)->h_headers = tsk_list_create();
			}
			tsk_list_push_back_data(TMEDIA_CONTENT_CPIM(self)->h_headers, (void**)&header);
		}
	}
	break;
/* #line 311 "./src/content/tmedia_content_cpim.c" */
		}
	}

_again:
	if ( cs == 0 )
		goto _out;
	if ( ++p != pe )
		goto _resume;
	_test_eof: {}
	if ( p == eof )
	{
	const char *__acts = _tmedia_machine_content_cpim_actions + _tmedia_machine_content_cpim_eof_actions[cs];
	unsigned int __nacts = (unsigned int) *__acts++;
	while ( __nacts-- > 0 ) {
		switch ( *__acts++ ) {
	case 0:
/* #line 72 "./ragel/tmedia_content_cpim.rl" */
	{
		tag_start = p;
	}
	break;
	case 5:
/* #line 108 "./ragel/tmedia_content_cpim.rl" */
	{
		int len = (int)(p  - tag_start);
		if(len && tag_start){
			if(TMEDIA_CONTENT_CPIM(self)->e){
				TSK_OBJECT_SAFE_FREE(TMEDIA_CONTENT_CPIM(self)->e); \
			}
			TMEDIA_CONTENT_CPIM(self)->e = tsk_buffer_create(tag_start, len);
		}
	}
	break;
/* #line 345 "./src/content/tmedia_content_cpim.c" */
		}
	}
	}

	_out: {}
	}

/* #line 152 "./ragel/tmedia_content_cpim.rl" */
	
	TSK_FREE(hname);
	TSK_FREE(hvalue);

	if( cs < 
/* #line 359 "./src/content/tmedia_content_cpim.c" */
17
/* #line 156 "./ragel/tmedia_content_cpim.rl" */
 ){
		TSK_DEBUG_ERROR("Failed to parse CPIM content");
		return -1;
	}
	
	return 0;
}

static tsk_buffer_t* tmedia_content_cpim_get_data(tmedia_content_t* self)
{
	tsk_buffer_t* data = tsk_buffer_create_null();
	tmedia_content_cpim_t *cpim = TMEDIA_CONTENT_CPIM(self);
	const tsk_list_item_t* item;
	  /*
		  m: Content-type: Message/CPIM
		  s:
		  h: (message-metadata-headers)
		  s:
		  e: (encapsulated MIME message-body)
		  x:  MIME security multipart message wrapper
	  */
	if(cpim->m_headers){
		tsk_list_foreach(item, cpim->m_headers){
			char* hstring = tmedia_content_header_tostring(TMEDIA_CONTENT_HEADER(item->data));
			tsk_buffer_append_2(data, TSK_LIST_IS_LAST(cpim->m_headers, item) ? "%s\r\n\r\n" : "%s\r\n", hstring);
			TSK_FREE(hstring);
		}
	}
	if(cpim->h_headers){
		tsk_list_foreach(item, cpim->h_headers){
			char* hstring = tmedia_content_header_tostring(TMEDIA_CONTENT_HEADER(item->data));
			tsk_buffer_append_2(data, TSK_LIST_IS_LAST(cpim->h_headers, item) ? "%s\r\n\r\n" : "%s\r\n", hstring);
			TSK_FREE(hstring);
		}
	}
	if(cpim->e){
		tsk_buffer_append(data, TSK_BUFFER_DATA(cpim->e), TSK_BUFFER_SIZE(cpim->e));
	}
	if(cpim->x){
		tsk_buffer_append(data, TSK_BUFFER_DATA(cpim->x), TSK_BUFFER_SIZE(cpim->x));
	}

	return data;
}

//=================================================================================================
//	object/plugin definitions
//
/* constructor */
static tsk_object_t* tmedia_content_cpim_ctor(tsk_object_t * self, va_list * app)
{
	tmedia_content_cpim_t *cpim = self;
	if(cpim){
		/* init base: called by tmedia_content_create() */
		/* init self */
	}
	return self;
}
/* destructor */
static tsk_object_t* tmedia_content_cpim_dtor(tsk_object_t * self)
{ 
	tmedia_content_cpim_t *cpim = self;
	if(cpim){
		/* deinit base */
		tmedia_content_deinit(TMEDIA_CONTENT(cpim));
		/* deinit self */
		TSK_OBJECT_SAFE_FREE(cpim->m_headers);
		TSK_OBJECT_SAFE_FREE(cpim->h_headers);
		TSK_OBJECT_SAFE_FREE(cpim->e);
		TSK_OBJECT_SAFE_FREE(cpim->x);
	}

	return self;
}
/* object definition */
static const tsk_object_def_t tmedia_content_cpim_def_s = 
{
	sizeof(tmedia_content_cpim_t),
	tmedia_content_cpim_ctor, 
	tmedia_content_cpim_dtor,
	tsk_null, 
};
/* plugin definition*/
static const tmedia_content_plugin_def_t tmedia_content_cpim_plugin_def_s = 
{
	&tmedia_content_cpim_def_s,

	TMEDIA_CONTENT_CPIM_TYPE,
	tmedia_content_cpim_parse,
	tmedia_content_cpim_get_data
};
const tmedia_content_plugin_def_t *tmedia_content_cpim_plugin_def_t = &tmedia_content_cpim_plugin_def_s;