199 lines
4.4 KiB
C++
199 lines
4.4 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2008-2022, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "acceptbaseparser.h"
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#include "convert/convert.h"
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namespace Winix
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{
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AcceptBaseParser::AcceptBaseParser()
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{
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}
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AcceptBaseParser::~AcceptBaseParser()
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{
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}
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bool AcceptBaseParser::is_delimiter(wchar_t c, wchar_t delimiter)
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{
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return delimiter != 0 && delimiter == c;
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}
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bool AcceptBaseParser::is_delimiter(wchar_t c, wchar_t delimiter1, wchar_t delimiter2, wchar_t delimiter3)
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{
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return is_delimiter(c, delimiter1) || is_delimiter(c, delimiter2) || is_delimiter(c, delimiter3);
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}
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void AcceptBaseParser::read_token(std::wstring & token, size_t max_len, wchar_t delimiter1, wchar_t delimiter2, wchar_t delimiter3)
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{
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token.clear();
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text = pt::skip_white(text, false, false);
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while( *text!=0 && !is_delimiter(*text, delimiter1, delimiter2, delimiter3) )
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{
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if( token.size() < max_len )
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{
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token += *text;
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}
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++text;
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}
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pt::trim_white(token);
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}
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void AcceptBaseParser::read_name()
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{
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read_token(name, MAX_NAME_LENGTH, ',', ';');
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if( !name.empty() )
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{
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parsed_name(name);
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}
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}
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void AcceptBaseParser::read_parameter()
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{
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param_value.clear();
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read_token(param, MAX_PARAM_LENGTH, '=', ',', ';');
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if( *text == '=' )
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{
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++text;
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read_token(param_value, MAX_PARAM_VALUE_LENGTH, ';', ',');
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}
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if( !name.empty() && !param.empty() )
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{
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parsed_param(param, param_value);
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}
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if( param == L"q" && !param_value.empty() )
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{
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q = pt::to_double(param_value);
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}
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}
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void AcceptBaseParser::read_loop(std::vector<HeaderValue> * header_values, size_t max_len)
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{
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while( *text != 0 )
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{
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q = 1.0;
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read_name();
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while( *text == ';' )
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{
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++text;
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read_parameter();
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}
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if( !name.empty() && q > 0.0 )
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{
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if( q > 1.0 )
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q = 1.0;
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parsed_name_q(name, q);
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if( header_values && (max_len == 0 || header_values->size() < max_len) )
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{
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header_values->resize(header_values->size() + 1);
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header_values->back().value = name;
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header_values->back().weight = q;
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}
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}
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if( *text != 0 )
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++text;
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}
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}
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void AcceptBaseParser::read(const wchar_t * str, std::vector<HeaderValue> * header_values, size_t max_len)
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{
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text = str;
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init();
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read_loop(header_values, max_len);
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name.clear();
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param.clear();
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param_value.clear();
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}
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void AcceptBaseParser::parse(const wchar_t * str)
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{
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read(str, nullptr, 0);
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}
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void AcceptBaseParser::parse(const std::wstring & str)
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{
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parse(str.c_str());
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}
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void AcceptBaseParser::parse(const wchar_t * str, std::vector<HeaderValue> & header_values, size_t max_len, bool clear_header_values)
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{
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if( clear_header_values )
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header_values.clear();
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AcceptBaseParser::read(str, &header_values, max_len);
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std::sort(header_values.begin(), header_values.end(), [](HeaderValue & h1, HeaderValue & h2) -> bool {
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return h1.weight > h2.weight;
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});
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}
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void AcceptBaseParser::parse(const std::wstring & str, std::vector<HeaderValue> & header_values, size_t max_len, bool clear_header_values)
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{
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return parse(str.c_str(), header_values, max_len, clear_header_values);
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}
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} // namespace Winix
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