134 lines
3.4 KiB
Ragel
Executable File
134 lines
3.4 KiB
Ragel
Executable File
/*
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* Copyright (C) 2009-2015 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 tmsrp_header_Dummy.c
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* @brief MSRP Dummy header.
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*/
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#include "tinymsrp/parsers/tmsrp_parser_uri.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#include "tsk_string.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 tmsrp_machine_parser_uri;
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# Includes
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include tmsrp_machine_utils "./ragel/tmsrp_machine_utils.rl";
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action tag{
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tag_start = p;
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}
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#/* Sets HOST type */
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action is_ipv4 { uri->authority.host_type = tmsrp_host_ipv4; }
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action is_ipv6 { uri->authority.host_type = tmsrp_host_ipv6; }
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action is_hostname { uri->authority.host_type = tmsrp_host_hostname; }
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action parse_scheme{
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TSK_PARSER_SET_STRING(uri->scheme);
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}
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action parse_userinfo{
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TSK_PARSER_SET_STRING(uri->authority.userinfo);
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}
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action parse_host{
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TSK_PARSER_SET_STRING(uri->authority.host);
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if(uri->authority.host_type == tmsrp_host_ipv6){
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tsk_strunquote_2(&uri->authority.host, '[', ']');
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}
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}
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action parse_port{
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TSK_PARSER_SET_INT(uri->authority.port);
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}
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action parse_session_id{
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TSK_PARSER_SET_STRING(uri->session_id);
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}
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action parse_transport{
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TSK_PARSER_SET_STRING(uri->transport);
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}
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action parse_param{
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TSK_PARSER_ADD_PARAM(uri->params);
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}
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#//MSRP-URI = msrp-scheme "://" authority ["/" session-id] ";" transport *( ";" URI-parameter)
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#//msrp-scheme = "msrp" / "msrps"
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#//session-id = 1*( unreserved / "+" / "=" / "/" )
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#//transport = "tcp" / 1*ALPHANUM
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#//URI-parameter = token ["=" token]
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#//authority = [ userinfo "@" ] host [ ":" port ]
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msrp_scheme = ("msrp" | "msrps")>tag %parse_scheme;
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userinfo = (unreserved | pct_encoded | sub_delims | ":")* >tag %parse_userinfo;
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myhost = ((IPv6reference >is_ipv6)>2 | (IPv4address >is_ipv4)>1 | (hostname >is_hostname)>0)>tag %parse_host;
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authority = (userinfo "@")? myhost (":" port>tag %parse_port)?;
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session_id = (unreserved | "+" | "=" | "/")+ >tag %parse_session_id;
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transport = ("tcp" | alphanum*)>tag %parse_transport;
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URI_parameter = (token ("=" token)?)>tag %parse_param;
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URI = msrp_scheme "://" authority ("/" session_id)? ";" transport ( ";" URI_parameter)*;
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# Entry point
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main := URI;
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}%%
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tmsrp_uri_t *tmsrp_uri_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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tmsrp_uri_t *uri = tmsrp_uri_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)(tmsrp_machine_parser_uri_first_final);
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(void)(tmsrp_machine_parser_uri_error);
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(void)(tmsrp_machine_parser_uri_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 MSRP/MSRPS header.");
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TSK_OBJECT_SAFE_FREE(uri);
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}
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return uri;
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} |