//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/beast
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//
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#ifndef BOOST_BEAST_HTTP_IMPL_RFC7230_IPP
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#define BOOST_BEAST_HTTP_IMPL_RFC7230_IPP
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#include <boost/beast/http/rfc7230.hpp>
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#include <algorithm>
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namespace boost {
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namespace beast {
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namespace http {
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std::string
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param_list::const_iterator::
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unquote(string_view sr)
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{
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std::string s;
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s.reserve(sr.size());
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auto it = sr.begin() + 1;
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auto end = sr.end() - 1;
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while(it != end)
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{
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if(*it == '\\')
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++it;
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s.push_back(*it);
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++it;
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}
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return s;
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}
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void
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param_list::const_iterator::
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increment()
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{
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s_.clear();
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pi_.increment();
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if(pi_.empty())
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{
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pi_.it = pi_.last;
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pi_.first = pi_.last;
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}
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else if(! pi_.v.second.empty() &&
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pi_.v.second.front() == '"')
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{
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s_ = unquote(pi_.v.second);
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pi_.v.second = string_view{
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s_.data(), s_.size()};
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}
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}
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void
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ext_list::const_iterator::
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increment()
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{
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/*
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ext-list = *( "," OWS ) ext *( OWS "," [ OWS ext ] )
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ext = token param-list
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param-list = *( OWS ";" OWS param )
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param = token OWS "=" OWS ( token / quoted-string )
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chunked;a=b;i=j;gzip;windowBits=12
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x,y
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,,,,,chameleon
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*/
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auto const err =
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[&]
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{
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it_ = last_;
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first_ = last_;
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};
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auto need_comma = it_ != first_;
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v_.first = {};
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first_ = it_;
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for(;;)
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{
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detail::skip_ows(it_, last_);
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if(it_ == last_)
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return err();
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auto const c = *it_;
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if(detail::is_token_char(c))
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{
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if(need_comma)
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return err();
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auto const p0 = it_;
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for(;;)
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{
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++it_;
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if(it_ == last_)
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break;
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if(! detail::is_token_char(*it_))
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break;
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}
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v_.first = string_view{&*p0,
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static_cast<std::size_t>(it_ - p0)};
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if (it_ == last_)
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return;
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detail::param_iter pi;
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pi.it = it_;
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pi.first = it_;
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pi.last = last_;
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for(;;)
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{
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pi.increment();
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if(pi.empty())
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break;
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}
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v_.second = param_list{string_view{&*it_,
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static_cast<std::size_t>(pi.it - it_)}};
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it_ = pi.it;
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return;
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}
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if(c != ',')
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return err();
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need_comma = false;
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++it_;
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}
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}
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auto
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ext_list::
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find(string_view const& s) -> const_iterator
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{
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return std::find_if(begin(), end(),
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[&s](value_type const& v)
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{
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return beast::iequals(s, v.first);
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});
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}
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bool
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ext_list::
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exists(string_view const& s)
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{
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return find(s) != end();
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}
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void
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token_list::const_iterator::
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increment()
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{
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/*
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token-list = *( "," OWS ) token *( OWS "," [ OWS ext ] )
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*/
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auto const err =
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[&]
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{
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it_ = last_;
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first_ = last_;
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};
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auto need_comma = it_ != first_;
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v_ = {};
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first_ = it_;
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for(;;)
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{
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detail::skip_ows(it_, last_);
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if(it_ == last_)
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return err();
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auto const c = *it_;
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if(detail::is_token_char(c))
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{
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if(need_comma)
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return err();
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auto const p0 = it_;
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for(;;)
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{
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++it_;
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if(it_ == last_)
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break;
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if(! detail::is_token_char(*it_))
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break;
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}
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v_ = string_view{&*p0,
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static_cast<std::size_t>(it_ - p0)};
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return;
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}
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if(c != ',')
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return err();
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need_comma = false;
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++it_;
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}
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}
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bool
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token_list::
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exists(string_view const& s)
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{
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return std::find_if(begin(), end(),
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[&s](value_type const& v)
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{
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return beast::iequals(s, v);
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}
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) != end();
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}
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} // http
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} // beast
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} // boost
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#endif // BOOST_BEAST_HTTP_IMPL_RFC7230_IPP
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