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78 lines
1.9 KiB
78 lines
1.9 KiB
#include "url_parser.hh"
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#include <stdexcept>
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/phoenix.hpp>
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namespace qi = boost::spirit::qi;
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BOOST_FUSION_ADAPT_STRUCT(
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pEp::URL,
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(std::string, schema)
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(std::string, username)
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(std::string, password)
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(std::string, host)
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(unsigned , port)
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(std::string, path_and_query)
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(std::string, fragment)
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)
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namespace pEp
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{
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template <typename Iterator>
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struct UriGrammar : qi::grammar<Iterator, URL()>
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{
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typedef unsigned long ulong;
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UriGrammar() : UriGrammar::base_type(url)
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{
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schema = *(qi::char_ - ':' - '/');
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username = *(qi::char_ - ':' - '@');
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password = *(qi::char_ - '@');
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host = *(qi::char_ - '/' - ':');
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path_and_query = *(qi::char_ - '#');
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fragment = *(qi::char_);
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url = schema
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>> "://" >> -( username
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>> -(':' >> password) >> '@'
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)
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>> host
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>> (':' >> qi::uint_[ boost::phoenix::at_c<4>(qi::_val) = qi::_1 ])
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>> -(path_and_query) // >> -('?' >> params[ boost::phoenix::at_c<6>(qi::_val) = qi::_1 ] )
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>> -('#' >> fragment);
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};
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qi::rule<Iterator, URL()> url;
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qi::rule<Iterator, std::string()> schema, username, password, host, path_and_query, fragment;
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};
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URL parse_url(const char* begin, const char* end)
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{
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static const UriGrammar<const char*> G;
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URL url;
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const char* begin2 = begin;
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const bool okay = boost::spirit::qi::parse(begin2, end, G, url);
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if(!okay)
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{
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throw std::runtime_error("Cannot parse URL <" + std::string(begin,end) + "> !");
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}
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// stolen from pEpMIME's ascii_tolower():
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for(char& c : url.schema)
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{
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if(c>='A' && c<='Z')
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{
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c += 32;
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}
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}
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return url;
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}
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} // end of namespace pEp
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