ceph/src/boost/boost/beast/websocket/impl/rfc6455.ipp

   1 //
   2 // Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // Official repository: https://github.com/boostorg/beast
   8 //
   9
  10 #ifndef BOOST_BEAST_WEBSOCKET_IMPL_RFC6455_IPP
  11 #define BOOST_BEAST_WEBSOCKET_IMPL_RFC6455_IPP
  12
  13 #include <boost/beast/http/fields.hpp>
  14 #include <boost/beast/http/rfc7230.hpp>
  15
  16 namespace boost {
  17 namespace beast {
  18 namespace websocket {
  19
  20 template<class Allocator>
  21 bool
  22 is_upgrade(http::header<true,
  23     http::basic_fields<Allocator>> const& req)
  24 {
  25     if(req.version() < 11)
  26         return false;
  27     if(req.method() != http::verb::get)
  28         return false;
  29     if(! http::token_list{req[http::field::connection]}.exists("upgrade"))
  30         return false;
  31     if(! http::token_list{req[http::field::upgrade]}.exists("websocket"))
  32         return false;
  33     return true;
  34 }
  35
  36 } // websocket
  37 } // beast
  38 } // boost
  39
  40 #endif