1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
#![deny(
missing_copy_implementations,
trivial_casts, trivial_numeric_casts,
unstable_features,
unused_import_braces)]
extern crate httparse;
extern crate mio;
extern crate sha1;
extern crate rand;
extern crate url;
#[cfg(feature="ssl")] extern crate openssl;
#[macro_use] extern crate log;
mod result;
mod connection;
mod handler;
mod factory;
mod frame;
mod message;
mod handshake;
mod protocol;
mod communication;
mod io;
mod stream;
#[cfg(feature="permessage-deflate")]
pub mod deflate;
pub mod util;
pub use factory::Factory;
pub use handler::Handler;
pub use result::{Result, Error};
pub use result::Kind as ErrorKind;
pub use message::Message;
pub use communication::Sender;
pub use frame::Frame;
pub use protocol::{CloseCode, OpCode};
pub use handshake::{Handshake, Request, Response};
use std::fmt;
use std::default::Default;
use std::net::ToSocketAddrs;
use mio::EventLoopConfig;
use std::borrow::Borrow;
pub fn listen<A, F, H>(addr: A, factory: F) -> Result<()>
where
A: ToSocketAddrs + fmt::Debug,
F: FnMut(Sender) -> H,
H: Handler,
{
let ws = try!(WebSocket::new(factory));
try!(ws.listen(addr));
Ok(())
}
pub fn connect<U, F, H>(url: U, factory: F) -> Result<()>
where
U: Borrow<str>,
F: FnMut(Sender) -> H,
H: Handler
{
let mut ws = try!(WebSocket::new(factory));
let parsed = try!(
url::Url::parse(url.borrow())
.map_err(|err| Error::new(
ErrorKind::Internal,
format!("Unable to parse {} as url due to {:?}", url.borrow(), err))));
try!(ws.connect(parsed));
try!(ws.run());
Ok(())
}
#[derive(Debug, Clone, Copy)]
pub struct Settings {
pub max_connections: usize,
pub panic_on_new_connection: bool,
pub panic_on_shutdown: bool,
pub fragments_capacity: usize,
pub fragments_grow: bool,
pub fragment_size: usize,
pub in_buffer_capacity: usize,
pub in_buffer_grow: bool,
pub out_buffer_capacity: usize,
pub out_buffer_grow: bool,
pub panic_on_internal: bool,
pub panic_on_capacity: bool,
pub panic_on_protocol: bool,
pub panic_on_encoding: bool,
pub panic_on_io: bool,
pub panic_on_timeout: bool,
pub masking_strict: bool,
pub key_strict: bool,
pub method_strict: bool,
pub encrypt_server: bool,
}
impl Default for Settings {
fn default() -> Settings {
Settings {
max_connections: 100,
panic_on_new_connection: false,
panic_on_shutdown: false,
fragments_capacity: 10,
fragments_grow: true,
fragment_size: u16::max_value() as usize,
in_buffer_capacity: 2048,
in_buffer_grow: true,
out_buffer_capacity: 2048,
out_buffer_grow: true,
panic_on_internal: true,
panic_on_capacity: false,
panic_on_protocol: false,
panic_on_encoding: false,
panic_on_io: false,
panic_on_timeout: false,
masking_strict: false,
key_strict: false,
method_strict: false,
encrypt_server: false,
}
}
}
pub struct WebSocket<F>
where F: Factory
{
event_loop: io::Loop<F>,
handler: io::Handler<F>,
}
impl<F> WebSocket<F>
where F: Factory
{
pub fn new(factory: F) -> Result<WebSocket<F>> {
let settings = Settings::default();
let mut config = EventLoopConfig::new();
config.notify_capacity(settings.max_connections * 5);
Ok(WebSocket {
event_loop: try!(io::Loop::configured(config)),
handler: io::Handler::new(factory, settings),
})
}
pub fn with_config(factory: F, config: EventLoopConfig) -> Result<WebSocket<F>> {
warn!("The with_config method is deprecated and will be removed in a future version.");
Ok(WebSocket {
event_loop: try!(io::Loop::configured(config)),
handler: io::Handler::new(factory, Settings::default()),
})
}
pub fn listen<A>(mut self, addr_spec: A) -> Result<WebSocket<F>>
where A: ToSocketAddrs + fmt::Debug
{
let mut result = Err(Error::new(ErrorKind::Internal, format!("Unable to listen on {:?}", addr_spec)));
for addr in try!(addr_spec.to_socket_addrs()) {
result = self.handler.listen(&mut self.event_loop, &addr).map(|_| ());
if result.is_ok() {
info!("Listening for new connections on {}.", addr);
return self.run()
}
}
result.map(|_| self)
}
pub fn connect(&mut self, url: url::Url) -> Result<&mut WebSocket<F>> {
let sender = Sender::new(io::ALL, self.event_loop.channel());
info!("Queuing connection to {}", url);
try!(sender.connect(url));
Ok(self)
}
pub fn run(mut self) -> Result<WebSocket<F>> {
try!(self.event_loop.run(&mut self.handler));
Ok(self)
}
#[inline]
pub fn broadcaster(&self) -> Sender {
Sender::new(io::ALL, self.event_loop.channel())
}
}
#[derive(Debug)]
pub struct Builder {
event_config: Option<EventLoopConfig>,
settings: Settings,
}
impl Builder {
pub fn new() -> Builder {
Builder {
event_config: None,
settings: Settings::default(),
}
}
pub fn build<F>(&self, factory: F) -> Result<WebSocket<F>>
where F: Factory
{
let mut event_config: EventLoopConfig;
if let Some(ref config) = self.event_config {
event_config = config.clone();
} else {
event_config = EventLoopConfig::new();
event_config.notify_capacity(self.settings.max_connections * 5);
}
Ok(WebSocket {
event_loop: try!(io::Loop::configured(event_config)),
handler: io::Handler::new(factory, self.settings),
})
}
pub fn with_config(&mut self, config: EventLoopConfig) -> &mut Builder {
self.event_config = Some(config);
self
}
pub fn with_settings(&mut self, settings: Settings) -> &mut Builder {
self.settings = settings;
self
}
}