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Diffstat (limited to 'boost/beast/websocket/detail/hybi13.hpp')
-rw-r--r-- | boost/beast/websocket/detail/hybi13.hpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/boost/beast/websocket/detail/hybi13.hpp b/boost/beast/websocket/detail/hybi13.hpp new file mode 100644 index 0000000000..b9c67b8200 --- /dev/null +++ b/boost/beast/websocket/detail/hybi13.hpp @@ -0,0 +1,75 @@ +// +// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// +// Official repository: https://github.com/boostorg/beast +// + +#ifndef BOOST_BEAST_WEBSOCKET_DETAIL_HYBI13_HPP +#define BOOST_BEAST_WEBSOCKET_DETAIL_HYBI13_HPP + +#include <boost/beast/core/static_string.hpp> +#include <boost/beast/core/string.hpp> +#include <boost/beast/core/detail/base64.hpp> +#include <boost/beast/core/detail/sha1.hpp> +#include <boost/assert.hpp> +#include <array> +#include <cstdint> +#include <string> +#include <type_traits> + +namespace boost { +namespace beast { +namespace websocket { +namespace detail { + +using sec_ws_key_type = static_string< + beast::detail::base64::encoded_size(16)>; + +using sec_ws_accept_type = static_string< + beast::detail::base64::encoded_size(20)>; + +template<class Gen> +void +make_sec_ws_key(sec_ws_key_type& key, Gen& g) +{ + char a[16]; + for(int i = 0; i < 16; i += 4) + { + auto const v = g(); + a[i ] = v & 0xff; + a[i+1] = (v >> 8) & 0xff; + a[i+2] = (v >> 16) & 0xff; + a[i+3] = (v >> 24) & 0xff; + } + key.resize(key.max_size()); + key.resize(beast::detail::base64::encode( + key.data(), &a[0], 16)); +} + +template<class = void> +void +make_sec_ws_accept(sec_ws_accept_type& accept, + string_view key) +{ + BOOST_ASSERT(key.size() <= sec_ws_key_type::max_size_n); + static_string<sec_ws_key_type::max_size_n + 36> m(key); + m.append("258EAFA5-E914-47DA-95CA-C5AB0DC85B11"); + beast::detail::sha1_context ctx; + beast::detail::init(ctx); + beast::detail::update(ctx, m.data(), m.size()); + char digest[beast::detail::sha1_context::digest_size]; + beast::detail::finish(ctx, &digest[0]); + accept.resize(accept.max_size()); + accept.resize(beast::detail::base64::encode( + accept.data(), &digest[0], sizeof(digest))); +} + +} // detail +} // websocket +} // beast +} // boost + +#endif |