1//
2// Copyright (c) 2016-2019 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_DETAIL_HYBI13_IPP
11#define BOOST_BEAST_WEBSOCKET_DETAIL_HYBI13_IPP
12
13#include <boost/beast/websocket/detail/hybi13.hpp>
14#include <boost/beast/core/detail/sha1.hpp>
15#include <boost/beast/websocket/detail/prng.hpp>
16
17#include <boost/assert.hpp>
18#include <cstdint>
19#include <string>
20
21namespace boost {
22namespace beast {
23namespace websocket {
24namespace detail {
25
26void
27make_sec_ws_key(sec_ws_key_type& key)
28{
29 auto g = make_prng(secure: true);
30 std::uint32_t a[4];
31 for (auto& v : a)
32 v = g();
33 key.resize(n: key.max_size());
34 key.resize(n: beast::detail::base64::encode(
35 dest: key.data(), src: &a[0], len: sizeof(a)));
36}
37
38void
39make_sec_ws_accept(
40 sec_ws_accept_type& accept,
41 string_view key)
42{
43 BOOST_ASSERT(key.size() <= sec_ws_key_type::static_capacity);
44 using namespace beast::detail::string_literals;
45 auto const guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"_sv;
46 beast::detail::sha1_context ctx;
47 beast::detail::init(ctx);
48 beast::detail::update(ctx, message: key.data(), size: key.size());
49 beast::detail::update(ctx, message: guid.data(), size: guid.size());
50 char digest[beast::detail::sha1_context::digest_size];
51 beast::detail::finish(ctx, digest: &digest[0]);
52 accept.resize(n: accept.max_size());
53 accept.resize(n: beast::detail::base64::encode(
54 dest: accept.data(), src: &digest[0], len: sizeof(digest)));
55}
56
57} // detail
58} // websocket
59} // beast
60} // boost
61
62#endif // BOOST_BEAST_WEBSOCKET_DETAIL_HYBI13_IPP
63

source code of boost/libs/beast/include/boost/beast/websocket/detail/hybi13.ipp