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JonatanRek committed 2020-08-13 10:31:15 +02:00
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@@ -10,21 +10,21 @@ pluggable I/O.
Due to this design, you get a lot of things for free. In particular, if you hook
this module up to some I/O object, it will do all of this for you:
- Select the correct server-side driver to talk to the client
- Generate and send both server- and client-side handshakes
- Recognize when the handshake phase completes and the WS protocol begins
- Negotiate subprotocol selection based on `Sec-WebSocket-Protocol`
- Negotiate and use extensions via the
* Select the correct server-side driver to talk to the client
* Generate and send both server- and client-side handshakes
* Recognize when the handshake phase completes and the WS protocol begins
* Negotiate subprotocol selection based on `Sec-WebSocket-Protocol`
* Negotiate and use extensions via the
[websocket-extensions](https://github.com/faye/websocket-extensions-node)
module
- Buffer sent messages until the handshake process is finished
- Deal with proxies that defer delivery of the draft-76 handshake body
- Notify you when the socket is open and closed and when messages arrive
- Recombine fragmented messages
- Dispatch text, binary, ping, pong and close frames
- Manage the socket-closing handshake process
- Automatically reply to ping frames with a matching pong
- Apply masking to messages sent by the client
* Buffer sent messages until the handshake process is finished
* Deal with proxies that defer delivery of the draft-76 handshake body
* Notify you when the socket is open and closed and when messages arrive
* Recombine fragmented messages
* Dispatch text, binary, ping, pong and close frames
* Manage the socket-closing handshake process
* Automatically reply to ping frames with a matching pong
* Apply masking to messages sent by the client
This library was originally extracted from the [Faye](http://faye.jcoglan.com)
project but now aims to provide simple WebSocket support for any Node-based
@@ -153,8 +153,8 @@ driver.messages.on('data', function(message) {
Client drivers have two additional properties for reading the HTTP data that was
sent back by the server:
- `driver.statusCode` - the integer value of the HTTP status code
- `driver.headers` - an object containing the response headers
* `driver.statusCode` - the integer value of the HTTP status code
* `driver.headers` - an object containing the response headers
### HTTP Proxies
@@ -177,7 +177,7 @@ var driver = websocket.client('ws://www.example.com/socket'),
proxy = driver.proxy('http://username:password@proxy.example.com'),
tcp = net.connect(80, 'proxy.example.com');
tcp.pipe(proxy).pipe(tcp, { end: false });
tcp.pipe(proxy).pipe(tcp, {end: false});
tcp.on('connect', function() {
proxy.start();
@@ -235,18 +235,18 @@ masking enabled on outgoing frames.
The `options` argument is optional, and is an object. It may contain the
following fields:
- `maxLength` - the maximum allowed size of incoming message frames, in bytes.
* `maxLength` - the maximum allowed size of incoming message frames, in bytes.
The default value is `2^26 - 1`, or 1 byte short of 64 MiB.
- `protocols` - an array of strings representing acceptable subprotocols for use
* `protocols` - an array of strings representing acceptable subprotocols for use
over the socket. The driver will negotiate one of these to use via the
`Sec-WebSocket-Protocol` header if supported by the other peer.
A driver has two duplex streams attached to it:
- **`driver.io`** - this stream should be attached to an I/O socket like a TCP
stream. Pipe incoming TCP chunks to this stream for them to be parsed, and
* <b>`driver.io`</b> - this stream should be attached to an I/O socket like a
TCP stream. Pipe incoming TCP chunks to this stream for them to be parsed, and
pipe this stream back into TCP to send outgoing frames.
- **`driver.messages`** - this stream emits messages received over the
* <b>`driver.messages`</b> - this stream emits messages received over the
WebSocket. Writing to it sends messages to the other peer by emitting frames
via the `driver.io` stream.
@@ -281,17 +281,6 @@ describing the error.
Adds a callback to execute when the socket becomes closed. The `event` object
has `code` and `reason` attributes.
#### `driver.on('ping', function(event) {})`
Adds a callback block to execute when a ping is received. You do not need to
handle this by sending a pong frame yourself; the driver handles this for you.
#### `driver.on('pong', function(event) {})`
Adds a callback block to execute when a pong is received. If this was in
response to a ping you sent, you can also handle this event via the
`driver.ping(message, function() { ... })` callback.
#### `driver.addExtension(extension)`
Registers a protocol extension whose operation will be negotiated via the
@@ -368,3 +357,27 @@ Returns the WebSocket version in use as a string. Will either be `hixie-75`,
Returns a string containing the selected subprotocol, if any was agreed upon
using the `Sec-WebSocket-Protocol` mechanism. This value becomes available after
`emit('open')` has fired.
## License
(The MIT License)
Copyright (c) 2010-2016 James Coglan
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the 'Software'), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.