2 * Copyright (c) 2015, Peter Thorson. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 * * Neither the name of the WebSocket++ Project nor the
12 * names of its contributors may be used to endorse or promote products
13 * derived from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP
29 #define WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP
31 #include <websocketpp/common/asio.hpp>
32 #include <websocketpp/common/memory.hpp>
33 #include <websocketpp/common/functional.hpp>
34 #include <websocketpp/common/system_error.hpp>
35 #include <websocketpp/common/cpp11.hpp>
36 #include <websocketpp/common/connection_hdl.hpp>
40 // Interface that sockets/security policies must implement
45 * bool is_secure() const;
46 * @return Whether or not the endpoint creates secure connections
48 * lib::error_code init(socket_con_ptr scon);
49 * Called by the transport after a new connection is created to initialize
50 * the socket component of the connection.
51 * @param scon Pointer to the socket component of the connection
52 * @return Error code (empty on success)
58 // set_hostname(std::string hostname)
59 // pre_init(init_handler);
60 // post_init(init_handler);
62 namespace websocketpp {
67 typedef lib::function<void(lib::asio::error_code const &)> shutdown_handler;
70 * The transport::asio::socket::* classes are a set of security/socket related
71 * policies and support code for the ASIO transport types.
74 /// Errors related to asio transport sockets
77 /// Catch-all error for security policy errors that don't fit in other
81 /// Catch-all error for socket component errors that don't fit in other
85 /// A function was called in a state that it was illegal to do so.
88 /// The application was prompted to provide a TLS context and it was
89 /// empty or otherwise invalid
92 /// TLS Handshake Timeout
93 tls_handshake_timeout,
95 /// pass_through from underlying library
98 /// Required tls_init handler not present
99 missing_tls_init_handler,
101 /// TLS Handshake Failed
102 tls_handshake_failed,
104 /// Failed to set TLS SNI hostname
105 tls_failed_sni_hostname
109 /// Error category related to asio transport socket policies
110 class socket_category : public lib::error_category {
112 char const * name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_ {
113 return "websocketpp.transport.asio.socket";
116 std::string message(int value) const {
118 case error::security:
119 return "Security policy error";
121 return "Socket component error";
122 case error::invalid_state:
123 return "Invalid state";
124 case error::invalid_tls_context:
125 return "Invalid or empty TLS context supplied";
126 case error::tls_handshake_timeout:
127 return "TLS handshake timed out";
128 case error::pass_through:
129 return "Pass through from socket policy";
130 case error::missing_tls_init_handler:
131 return "Required tls_init handler not present.";
132 case error::tls_handshake_failed:
133 return "TLS handshake failed";
134 case error::tls_failed_sni_hostname:
135 return "Failed to set TLS SNI hostname";
142 inline lib::error_category const & get_socket_category() {
143 static socket_category instance;
147 inline lib::error_code make_error_code(error::value e) {
148 return lib::error_code(static_cast<int>(e), get_socket_category());
151 /// Type of asio transport socket policy initialization handlers
152 typedef lib::function<void(const lib::error_code&)> init_handler;
154 } // namespace socket
156 } // namespace transport
157 } // namespace websocketpp
159 #endif // WEBSOCKETPP_TRANSPORT_ASIO_SOCKET_BASE_HPP