174 lines
3.7 KiB
Ragel
Executable File
174 lines
3.7 KiB
Ragel
Executable File
/*
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* Copyright (C) 2010-2015 Mamadou Diop.
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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 thttp_header_ETag.c
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* @brief HTTP 'Etag' header.
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*/
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#include "tinyhttp/headers/thttp_header_ETag.h"
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#include "tinyhttp/parsers/thttp_parser_url.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#include <string.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 thttp_machine_parser_header_ETag;
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alphtype unsigned char;
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# Includes
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include thttp_machine_utils "./ragel/thttp_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 is_weak{
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hdr_ETag->isWeak = tsk_true;
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}
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action parse_entity_tag{
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TSK_PARSER_SET_STRING(hdr_ETag->value);
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tsk_strunquote(&hdr_ETag->value);
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}
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action eob{
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}
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weak = "W/"i %is_weak;
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opaque_tag = quoted_string>tag %parse_entity_tag;
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entity_tag = weak? <: opaque_tag;
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ETag = "ETag"i HCOLON entity_tag;
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# Entry point
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main := ETag :>CRLF @eob;
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}%%
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thttp_header_ETag_t* thttp_header_etag_create(const char* value)
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{
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return tsk_object_new(THTTP_HEADER_ETAG_VA_ARGS(value));
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}
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thttp_header_ETag_t* thttp_header_etag_create_null()
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{
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return thttp_header_etag_create(tsk_null);
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}
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int thttp_header_ETag_tostring(const thttp_header_t* header, tsk_buffer_t* output)
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{
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if(header){
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const thttp_header_ETag_t *ETag = (const thttp_header_ETag_t*)header;
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if(ETag->value){
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return tsk_buffer_append_2(output, "%s\"%s\"",
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ETag->isWeak ? "W/" : "",
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ETag->value);
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}
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return 0;
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}
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return -1;
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}
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/**@ingroup thttp_header_group
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*/
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thttp_header_ETag_t *thttp_header_ETag_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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thttp_header_ETag_t *hdr_ETag = thttp_header_etag_create_null();
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const char *tag_start = tsk_null;
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TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
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%%write data;
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(void)(eof);
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(void)(thttp_machine_parser_header_ETag_first_final);
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(void)(thttp_machine_parser_header_ETag_error);
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(void)(thttp_machine_parser_header_ETag_en_main);
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%%write init;
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%%write exec;
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TSK_RAGEL_DISABLE_WARNINGS_END()
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if( cs < %%{ write first_final; }%% ){
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TSK_DEBUG_ERROR("Failed to parse ETag header.");
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TSK_OBJECT_SAFE_FREE(hdr_ETag);
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}
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return hdr_ETag;
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}
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//========================================================
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// ETag header object definition
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//
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static tsk_object_t* thttp_header_ETag_ctor(tsk_object_t *self, va_list * app)
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{
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thttp_header_ETag_t *ETag = self;
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if(ETag){
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THTTP_HEADER(ETag)->type = thttp_htype_ETag;
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THTTP_HEADER(ETag)->tostring = thttp_header_ETag_tostring;
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ETag->value = tsk_strdup(va_arg(*app, const char*));
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new ETag header.");
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}
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return self;
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}
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static tsk_object_t* thttp_header_ETag_dtor(tsk_object_t *self)
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{
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thttp_header_ETag_t *ETag = self;
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if(ETag)
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{
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TSK_FREE(ETag->value);
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TSK_OBJECT_SAFE_FREE(THTTP_HEADER_PARAMS(ETag));
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}
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else{
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TSK_DEBUG_ERROR("Null ETag 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 thttp_header_ETag_def_s =
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{
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sizeof(thttp_header_ETag_t),
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thttp_header_ETag_ctor,
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thttp_header_ETag_dtor,
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tsk_null
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};
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const tsk_object_def_t *thttp_header_ETag_def_t = &thttp_header_ETag_def_s;
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