
/* #line 1 "./ragel/thttp_parser_header_ETag.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 thttp_header_ETag.c
 * @brief HTTP 'Etag' header.
 *
 * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
 *

 */
#include "tinyhttp/headers/thttp_header_ETag.h"

#include "tinyhttp/parsers/thttp_parser_url.h"

#include "tsk_debug.h"
#include "tsk_memory.h"

#include <string.h>

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

/* #line 73 "./ragel/thttp_parser_header_ETag.rl" */


thttp_header_ETag_t* thttp_header_etag_create(const char* value)
{
	return tsk_object_new(THTTP_HEADER_ETAG_VA_ARGS(value));
}

thttp_header_ETag_t* thttp_header_etag_create_null()
{ 
	return thttp_header_etag_create(tsk_null);
}


int thttp_header_ETag_tostring(const thttp_header_t* header, tsk_buffer_t* output)
{
	if(header){
		const thttp_header_ETag_t *ETag = (const thttp_header_ETag_t*)header;
		if(ETag->value){
			return tsk_buffer_append_2(output, "%s\"%s\"",
				ETag->isWeak ? "W/" : "",
				ETag->value);
		}
		return 0;
	}

	return -1;
}

/**@ingroup thttp_header_group
*/
thttp_header_ETag_t *thttp_header_ETag_parse(const char *data, tsk_size_t size)
{
	int cs = 0;
	const char *p = data;
	const char *pe = p + size;
	const char *eof = pe;
	thttp_header_ETag_t *hdr_ETag = thttp_header_etag_create_null();
	
	const char *tag_start = tsk_null;

	
/* #line 88 "./src/headers/thttp_header_ETag.c" */
static const char _thttp_machine_parser_header_ETag_actions[] = {
	0, 1, 0, 1, 2, 1, 3, 2, 
	1, 0
};

static const char _thttp_machine_parser_header_ETag_key_offsets[] = {
	0, 0, 2, 4, 6, 8, 11, 17, 
	18, 20, 26, 27, 29, 32, 40, 41, 
	43, 44, 45, 51, 52, 56, 60
};

static const unsigned char _thttp_machine_parser_header_ETag_trans_keys[] = {
	69u, 101u, 84u, 116u, 65u, 97u, 71u, 103u, 
	9u, 32u, 58u, 9u, 13u, 32u, 34u, 87u, 
	119u, 10u, 9u, 32u, 9u, 13u, 32u, 34u, 
	87u, 119u, 10u, 9u, 32u, 9u, 32u, 34u, 
	13u, 34u, 92u, 127u, 0u, 8u, 10u, 31u, 
	10u, 9u, 32u, 13u, 10u, 0u, 9u, 11u, 
	12u, 14u, 127u, 47u, 9u, 13u, 32u, 34u, 
	9u, 13u, 32u, 34u, 0
};

static const char _thttp_machine_parser_header_ETag_single_lengths[] = {
	0, 2, 2, 2, 2, 3, 6, 1, 
	2, 6, 1, 2, 3, 4, 1, 2, 
	1, 1, 0, 1, 4, 4, 0
};

static const char _thttp_machine_parser_header_ETag_range_lengths[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 2, 0, 0, 
	0, 0, 3, 0, 0, 0, 0
};

static const char _thttp_machine_parser_header_ETag_index_offsets[] = {
	0, 0, 3, 6, 9, 12, 16, 23, 
	25, 28, 35, 37, 40, 44, 51, 53, 
	56, 58, 60, 64, 66, 71, 76
};

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

static const char _thttp_machine_parser_header_ETag_trans_targs[] = {
	2, 0, 3, 4, 5, 6, 6, 7, 
	13, 19, 8, 9, 9, 10, 11, 12, 
	13, 14, 16, 18, 15, 17, 22, 20, 
	21, 10, 13, 21, 10
};

static const char _thttp_machine_parser_header_ETag_trans_actions[] = {
	0, 0, 0, 0, 0, 0, 1, 1, 
	1, 0, 0, 0, 1, 1, 0, 0, 
	0, 0, 0, 0, 0, 3, 5, 0, 
	7, 7, 7, 0, 0
};

static const int thttp_machine_parser_header_ETag_start = 1;
static const int thttp_machine_parser_header_ETag_first_final = 22;
static const int thttp_machine_parser_header_ETag_error = 0;

static const int thttp_machine_parser_header_ETag_en_main = 1;


/* #line 114 "./ragel/thttp_parser_header_ETag.rl" */
	(void)(eof);
	(void)(thttp_machine_parser_header_ETag_first_final);
	(void)(thttp_machine_parser_header_ETag_error);
	(void)(thttp_machine_parser_header_ETag_en_main);
	
/* #line 169 "./src/headers/thttp_header_ETag.c" */
	{
	cs = thttp_machine_parser_header_ETag_start;
	}

/* #line 119 "./ragel/thttp_parser_header_ETag.rl" */
	
/* #line 176 "./src/headers/thttp_header_ETag.c" */
	{
	int _klen;
	unsigned int _trans;
	const char *_acts;
	unsigned int _nacts;
	const unsigned char *_keys;

	if ( p == pe )
		goto _test_eof;
	if ( cs == 0 )
		goto _out;
_resume:
	_keys = _thttp_machine_parser_header_ETag_trans_keys + _thttp_machine_parser_header_ETag_key_offsets[cs];
	_trans = _thttp_machine_parser_header_ETag_index_offsets[cs];

	_klen = _thttp_machine_parser_header_ETag_single_lengths[cs];
	if ( _klen > 0 ) {
		const unsigned char *_lower = _keys;
		const unsigned char *_mid;
		const unsigned 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 = _thttp_machine_parser_header_ETag_range_lengths[cs];
	if ( _klen > 0 ) {
		const unsigned char *_lower = _keys;
		const unsigned char *_mid;
		const unsigned 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 = _thttp_machine_parser_header_ETag_indicies[_trans];
	cs = _thttp_machine_parser_header_ETag_trans_targs[_trans];

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

	_acts = _thttp_machine_parser_header_ETag_actions + _thttp_machine_parser_header_ETag_trans_actions[_trans];
	_nacts = (unsigned int) *_acts++;
	while ( _nacts-- > 0 )
	{
		switch ( *_acts++ )
		{
	case 0:
/* #line 49 "./ragel/thttp_parser_header_ETag.rl" */
	{
		tag_start = p;
	}
	break;
	case 1:
/* #line 53 "./ragel/thttp_parser_header_ETag.rl" */
	{
		hdr_ETag->isWeak = tsk_true;
	}
	break;
	case 2:
/* #line 57 "./ragel/thttp_parser_header_ETag.rl" */
	{
		TSK_PARSER_SET_STRING(hdr_ETag->value);
		tsk_strunquote(&hdr_ETag->value);
	}
	break;
	case 3:
/* #line 62 "./ragel/thttp_parser_header_ETag.rl" */
	{
	}
	break;
/* #line 274 "./src/headers/thttp_header_ETag.c" */
		}
	}

_again:
	if ( cs == 0 )
		goto _out;
	if ( ++p != pe )
		goto _resume;
	_test_eof: {}
	_out: {}
	}

/* #line 120 "./ragel/thttp_parser_header_ETag.rl" */
	
	if( cs < 
/* #line 290 "./src/headers/thttp_header_ETag.c" */
22
/* #line 121 "./ragel/thttp_parser_header_ETag.rl" */
 ){
		TSK_DEBUG_ERROR("Failed to parse ETag header.");
		TSK_OBJECT_SAFE_FREE(hdr_ETag);
	}
	
	return hdr_ETag;
}







//========================================================
//	ETag header object definition
//

static tsk_object_t* thttp_header_ETag_ctor(tsk_object_t *self, va_list * app)
{
	thttp_header_ETag_t *ETag = self;
	if(ETag){
		THTTP_HEADER(ETag)->type = thttp_htype_ETag;
		THTTP_HEADER(ETag)->tostring = thttp_header_ETag_tostring;

		ETag->value = tsk_strdup(va_arg(*app, const char*));
	}
	else{
		TSK_DEBUG_ERROR("Failed to create new ETag header.");
	}
	return self;
}

static tsk_object_t* thttp_header_ETag_dtor(tsk_object_t *self)
{
	thttp_header_ETag_t *ETag = self;
	if(ETag)
	{
		TSK_FREE(ETag->value);
		
		TSK_OBJECT_SAFE_FREE(THTTP_HEADER_PARAMS(ETag));
	}
	else{
		TSK_DEBUG_ERROR("Null ETag header.");
	}

	return self;
}

static const tsk_object_def_t thttp_header_ETag_def_s = 
{
	sizeof(thttp_header_ETag_t),
	thttp_header_ETag_ctor,
	thttp_header_ETag_dtor,
	tsk_null
};
const tsk_object_def_t *thttp_header_ETag_def_t = &thttp_header_ETag_def_s;
