portluck
v0.4.4
Published
A unified HTTP/TCPSocket/WebSocket server for receiving arbitrary data
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Portluck
Accepts arbitrary data on a single port via HTTP, HTTPS, WebSockets, or a TCP socket. Optimally data
should be delimited by a \n
character to speed up connection detection (read below).
Since we're sniffing for the connection type you will need to send at least 3 bytes over a raw TCP
socket in order to trigger a message
event. If those 3 bytes happen to match the beginning of a valid HTTP
method we additionally wait for \r
or \n
to determine that it is/isn't an HTTP request.
portluck.Server
new portluck.Server([messageCallback][, options])
Creates a new server that inherits https.Server.
If messageCallback
is sent, it will be added as a listener for "message"
event. See bottom for options
.
Event: 'message'
Fired when a client sends a message. Event is sent (message, writer, socket, source)
. message
is a buffer containing
the message received. writer
is an instance of ResponseWriter
and can be used to respond to the message.
socket
is the source socket that sent the message. You should only read properties off the socket, like
remoteAddress
and not use the write
/end
methods. source
is either a net.Socket
or a http.IncomingMessage
.
Event: 'clientConnect'
Fired when a client connects. Event is sent (writer, socket, source)
. You should only read properties off the socket,
like remoteAddress
and not use the write
/end
methods. writer
is an instance of ResponseWriter
can be
used to respond. The writer
has write
, end
, and destroy
methods. source
is either a net.Socket
or a
http.IncomingMessage
.
Event: 'clientDisconnect'
Fired when a client disconnects. Event is sent socket
which is the socket that disconnected.
Event: 'clientError'
Fired when there's an error emitted from a client. Event is sent (error, socket)
.
server.listen(port [,callback])
Accepts the same parameters and options as http.Server.listen.
ResponseWriter
writer.write(message)
Writes message
to the underlying source socket. message
can be a string or Buffer. If you plan on
responding to messages asynchronously, you should call endAfterWrite
since HTTP/HTTPS requests are
automatically closed on the next tick (unless you sent explicitEnd
option).
writer.endAfterWrite()
If an automatic end()
is scheduled to happen next tick, calling doneAfterWrite
prevents that from
happening and waits to automatically call end()
until the next write()
. This is not needed if you created
the server with the explicitEnd
option.
writer.end([message])
Writes message
, if passed, to the underlying source socket. If the source was a HTTP/HTTPS request, it is
end
ed and a response is sent. No more writes are allowed on this writer. If the request was already terminated
on the client side then message
will be silently dropped and not sent.
writer.close()
Closes (by sending a FIN) the underlying source socket. No more writes are allowed on this writer.
writer.destroy()
Immediately closes the underlying source socket. Similar to socket.destroy()
No more writes are allowed
on this writer.
Options
rawFallback
Boolean for whether we should fallback to a raw socket connetion if http/tls/websocket isn't detected.
timeout
See net.Server.timeout. Defaults to 2 minutes.
Note: We wait 1 second to try and wait for bytes to determine what type of connection it is. Your timeout
applies AFTER that if no data is sent immediately.
allowOrigin
Origin to respond with Allow-Access-Control-Origin
for. Value can be a string or RegExp. String values can
contain a single *
for wildcard matching [a-zA-Z0-9_-]
. Do not add a protocol (like https://
).
Note: *.example.com
is special and matches example.com
, www.example.com
, and www.staging.example.com
.
Note 2: A origin ending in :*
will allow any ports. So example.com:*
would match example.com
and
example.com:4000
.
allowUndefinedOrigin
Automatically allow a request if the origin is undefined. You usually want this to be true since browsers only
don't send origin headers for same-domain requests. Defaults to true. If this is false, then the undefined
origin will be passed to allowOrigin
function/regex.
explicitEnd
If set to true
you are required to call writer.end()
on every message received. By default, messages are
ended on the nextTick after firing 'message'
event.
messageLimit
Maximum number of bytes per message. This is also the max size of the buffer when sniffing for connection type. Defaults to 0, which means no limit.
Todo
- Support UDP sockets as well
By James Hartig