WebSocket++ 0.8.2
C++ websocket client/server library
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core_client.hpp
1/*
2 * Copyright (c) 2014, Peter Thorson. All rights reserved.
3 *
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.
14 *
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.
25 *
26 */
27
28#ifndef WEBSOCKETPP_CONFIG_CORE_CLIENT_HPP
29#define WEBSOCKETPP_CONFIG_CORE_CLIENT_HPP
30
31// Non-Policy common stuff
32#include <websocketpp/common/platforms.hpp>
33#include <websocketpp/common/cpp11.hpp>
34#include <websocketpp/common/stdint.hpp>
35
36// Concurrency
37#ifndef _WEBSOCKETPP_NO_THREADING_
38#include <websocketpp/concurrency/basic.hpp>
39#else
40#include <websocketpp/concurrency/none.hpp>
41#endif
42
43// Transport
44#include <websocketpp/transport/iostream/endpoint.hpp>
45
46// HTTP
47#include <websocketpp/http/request.hpp>
48#include <websocketpp/http/response.hpp>
49
50// Messages
51#include <websocketpp/message_buffer/message.hpp>
52#include <websocketpp/message_buffer/alloc.hpp>
53
54// Loggers
55#include <websocketpp/logger/basic.hpp>
56
57// RNG
58#include <websocketpp/random/random_device.hpp>
59
60// User stub base classes
61#include <websocketpp/endpoint_base.hpp>
62#include <websocketpp/connection_base.hpp>
63
64// Extensions
65#include <websocketpp/extensions/permessage_deflate/disabled.hpp>
66
67namespace websocketpp {
68namespace config {
69
70/// Client config with iostream transport
71struct core_client {
72 typedef core_client type;
73
74 // Concurrency policy
75#ifndef _WEBSOCKETPP_NO_THREADING_
76 typedef websocketpp::concurrency::basic concurrency_type;
77#else
79#endif
80
81 // HTTP Parser Policies
82 typedef http::parser::request request_type;
83 typedef http::parser::response response_type;
84
85 // Message Policies
86 typedef message_buffer::message<message_buffer::alloc::con_msg_manager>
87 message_type;
88 typedef message_buffer::alloc::con_msg_manager<message_type>
89 con_msg_manager_type;
90 typedef message_buffer::alloc::endpoint_msg_manager<con_msg_manager_type>
91 endpoint_msg_manager_type;
92
93 /// Logging policies
94 typedef websocketpp::log::basic<concurrency_type,
96 typedef websocketpp::log::basic<concurrency_type,
97 websocketpp::log::alevel> alog_type;
98
99 /// RNG policies
100 typedef websocketpp::random::random_device::int_generator<uint32_t,
101 concurrency_type> rng_type;
102
103 /// Controls compile time enabling/disabling of thread syncronization code
104 /// Disabling can provide a minor performance improvement to single threaded
105 /// applications
106 static bool const enable_multithreading = true;
107
108 struct transport_config {
109 typedef type::concurrency_type concurrency_type;
110 typedef type::elog_type elog_type;
111 typedef type::alog_type alog_type;
112 typedef type::request_type request_type;
113 typedef type::response_type response_type;
114
115 /// Controls compile time enabling/disabling of thread syncronization
116 /// code Disabling can provide a minor performance improvement to single
117 /// threaded applications
118 static bool const enable_multithreading = true;
119
120 /// Default timer values (in ms)
121
122 /// Length of time to wait for socket pre-initialization
123 /**
124 * Exactly what this includes depends on the socket policy in use
125 */
126 static const long timeout_socket_pre_init = 5000;
127
128 /// Length of time to wait before a proxy handshake is aborted
129 static const long timeout_proxy = 5000;
130
131 /// Length of time to wait for socket post-initialization
132 /**
133 * Exactly what this includes depends on the socket policy in use.
134 * Often this means the TLS handshake
135 */
136 static const long timeout_socket_post_init = 5000;
137
138 /// Length of time to wait for dns resolution
139 static const long timeout_dns_resolve = 5000;
140
141 /// Length of time to wait for TCP connect
142 static const long timeout_connect = 5000;
143
144 /// Length of time to wait for socket shutdown
145 static const long timeout_socket_shutdown = 5000;
146 };
147
148 /// Transport Endpoint Component
151
152 /// User overridable Endpoint base class
153 typedef websocketpp::endpoint_base endpoint_base;
154 /// User overridable Connection base class
155 typedef websocketpp::connection_base connection_base;
156
157 /// Default timer values (in ms)
158
159 /// Length of time before an opening handshake is aborted
160 static const long timeout_open_handshake = 5000;
161 /// Length of time before a closing handshake is aborted
162 static const long timeout_close_handshake = 5000;
163 /// Length of time to wait for a pong after a ping
164 static const long timeout_pong = 5000;
165
166 /// WebSocket Protocol version to use as a client
167 /**
168 * What version of the WebSocket Protocol to use for outgoing client
169 * connections. Setting this to a value other than 13 (RFC6455) is not
170 * recommended.
171 */
172 static const int client_version = 13; // RFC6455
173
174 /// Default static error logging channels
175 /**
176 * Which error logging channels to enable at compile time. Channels not
177 * enabled here will be unable to be selected by programs using the library.
178 * This option gives an optimizing compiler the ability to remove entirely
179 * code to test whether or not to print out log messages on a certain
180 * channel
181 *
182 * Default is all except for development/debug level errors
183 */
184 static const websocketpp::log::level elog_level =
186
187 /// Default static access logging channels
188 /**
189 * Which access logging channels to enable at compile time. Channels not
190 * enabled here will be unable to be selected by programs using the library.
191 * This option gives an optimizing compiler the ability to remove entirely
192 * code to test whether or not to print out log messages on a certain
193 * channel
194 *
195 * Default is all except for development/debug level access messages
196 */
197 static const websocketpp::log::level alog_level =
199
200 ///
201 static const size_t connection_read_buffer_size = 16384;
202
203 /// Drop connections immediately on protocol error.
204 /**
205 * Drop connections on protocol error rather than sending a close frame.
206 * Off by default. This may result in legit messages near the error being
207 * dropped as well. It may free up resources otherwise spent dealing with
208 * misbehaving clients.
209 */
210 static const bool drop_on_protocol_error = false;
211
212 /// Suppresses the return of detailed connection close information
213 /**
214 * Silence close suppresses the return of detailed connection close
215 * information during the closing handshake. This information is useful
216 * for debugging and presenting useful errors to end users but may be
217 * undesirable for security reasons in some production environments.
218 * Close reasons could be used by an attacker to confirm that the endpoint
219 * is out of resources or be used to identify the WebSocket implementation
220 * in use.
221 *
222 * Note: this will suppress *all* close codes, including those explicitly
223 * sent by local applications.
224 */
225 static const bool silent_close = false;
226
227 /// Default maximum message size
228 /**
229 * Default value for the processor's maximum message size. Maximum message size
230 * determines the point at which the library will fail a connection with the
231 * message_too_big protocol error.
232 *
233 * The default is 32MB
234 *
235 * @since 0.3.0
236 */
237 static const size_t max_message_size = 32000000;
238
239 /// Default maximum http body size
240 /**
241 * Default value for the http parser's maximum body size. Maximum body size
242 * determines the point at which the library will abort reading an HTTP
243 * connection with the 413/request entity too large error.
244 *
245 * The default is 32MB
246 *
247 * @since 0.5.0
248 */
249 static const size_t max_http_body_size = 32000000;
250
251 /// Global flag for enabling/disabling extensions
252 static const bool enable_extensions = true;
253
254 /// Extension specific settings:
255
256 /// permessage_deflate extension
258 typedef core_client::request_type request_type;
259
260 /// If the remote endpoint requests that we reset the compression
261 /// context after each message should we honor the request?
262 static const bool allow_disabling_context_takeover = true;
263
264 /// If the remote endpoint requests that we reduce the size of the
265 /// LZ77 sliding window size this is the lowest value that will be
266 /// allowed. Values range from 8 to 15. A value of 8 means we will
267 /// allow any possible window size. A value of 15 means do not allow
268 /// negotiation of the window size (ie require the default).
269 static const uint8_t minimum_outgoing_window_bits = 8;
270 };
271
273 <permessage_deflate_config> permessage_deflate_type;
274
275 /// Autonegotiate permessage-compress
276 /**
277 * Automatically enables the permessage-compress extension.
278 *
279 * For clients this results in a permessage-compress extension request being
280 * sent with every request rather than requiring it to be requested manually
281 *
282 * For servers this results in accepting the first set of extension settings
283 * requested by the client that we understand being used. The alternative is
284 * requiring the extension to be manually negotiated in `validate`. With
285 * auto-negotiate on, you may still override the auto-negotiate manually if
286 * needed.
287 */
288 //static const bool autonegotiate_compression = false;
289};
290
291} // namespace config
292} // namespace websocketpp
293
294#endif // WEBSOCKETPP_CONFIG_CORE_CLIENT_HPP
Client endpoint role based on the given config.
Concurrency policy that uses std::mutex / boost::mutex.
Definition basic.hpp:37
Stub for user supplied base class.
Stub for user supplied base class.
Stub class for use when disabling permessage_deflate extension.
Definition disabled.hpp:53
Stores, parses, and manipulates HTTP requests.
Definition request.hpp:50
Stores, parses, and manipulates HTTP responses.
Definition response.hpp:57
Basic logger that outputs to an ostream.
Definition basic.hpp:59
Thread safe non-deterministic random integer generator.
Basic ASIO endpoint socket component.
Definition none.hpp:317
Asio based endpoint transport component.
Definition endpoint.hpp:54
Concurrency handling support.
Definition basic.hpp:34
Implementation of RFC 7692, the permessage-deflate WebSocket extension.
Definition disabled.hpp:44
HTTP handling support.
Definition request.hpp:37
RNG policy based on std::random_device or boost::random_device.
Random number generation policies.
Transport policy that uses asio.
Definition endpoint.hpp:46
Transport policy that uses STL iostream for I/O and does not support timers.
Definition endpoint.hpp:43
Transport policies provide network connectivity and timers.
Definition endpoint.hpp:45
Namespace for the WebSocket++ project.
Client config with asio transport and TLS disabled.
static const long timeout_dns_resolve
Length of time to wait for dns resolution.
static const long timeout_socket_shutdown
Length of time to wait for socket shutdown.
static const long timeout_socket_pre_init
Default timer values (in ms)
static const long timeout_proxy
Length of time to wait before a proxy handshake is aborted.
static const long timeout_connect
Length of time to wait for TCP connect.
static const long timeout_socket_post_init
Length of time to wait for socket post-initialization.
Client config with iostream transport.
static bool const enable_multithreading
static const bool enable_extensions
Global flag for enabling/disabling extensions.
websocketpp::log::basic< concurrency_type, websocketpp::log::elevel > elog_type
Logging policies.
static const websocketpp::log::level alog_level
Default static access logging channels.
static const size_t max_http_body_size
Default maximum http body size.
static const websocketpp::log::level elog_level
Default static error logging channels.
static const size_t max_message_size
Default maximum message size.
websocketpp::transport::iostream::endpoint< transport_config > transport_type
Transport Endpoint Component.
static const bool drop_on_protocol_error
Drop connections immediately on protocol error.
static const long timeout_close_handshake
Length of time before a closing handshake is aborted.
static const long timeout_open_handshake
Default timer values (in ms)
websocketpp::random::random_device::int_generator< uint32_t, concurrency_type > rng_type
RNG policies.
static const long timeout_pong
Length of time to wait for a pong after a ping.
static const int client_version
WebSocket Protocol version to use as a client.
static const bool silent_close
Suppresses the return of detailed connection close information.
Package of log levels for logging access events.
Definition levels.hpp:112
static level const devel
Development messages (warning: very chatty)
Definition levels.hpp:141
static level const all
Special aggregate value representing "all levels".
Definition levels.hpp:152
Package of log levels for logging errors.
Definition levels.hpp:59
static level const devel
Low level debugging information (warning: very chatty)
Definition levels.hpp:63
static level const all
Special aggregate value representing "all levels".
Definition levels.hpp:80