378 lines
9.4 KiB
JavaScript
378 lines
9.4 KiB
JavaScript
import MumbleClient from 'mumble-client'
|
|
import Promise from 'promise'
|
|
import EventEmitter from 'events'
|
|
import { Writable, PassThrough } from 'stream'
|
|
import toArrayBuffer from 'to-arraybuffer'
|
|
import ByteBuffer from 'bytebuffer'
|
|
import webworkify from 'webworkify'
|
|
import worker from './worker'
|
|
|
|
/**
|
|
* Creates proxy MumbleClients to a real ones running on a web worker.
|
|
* Only stuff which we need in mumble-web is proxied, i.e. this is not a generic solution.
|
|
*/
|
|
class WorkerBasedMumbleConnector {
|
|
constructor () {
|
|
this._worker = webworkify(worker)
|
|
this._worker.addEventListener('message', this._onMessage.bind(this))
|
|
this._reqId = 1
|
|
this._requests = {}
|
|
this._clients = {}
|
|
this._nextVoiceId = 1
|
|
this._voiceStreams = {}
|
|
}
|
|
|
|
setSampleRate (sampleRate) {
|
|
this._postMessage({
|
|
method: '_init',
|
|
sampleRate: sampleRate
|
|
})
|
|
}
|
|
|
|
_postMessage (msg, transfer) {
|
|
try {
|
|
this._worker.postMessage(msg, transfer)
|
|
} catch (err) {
|
|
console.error('Failed to postMessage', msg)
|
|
throw err
|
|
}
|
|
}
|
|
|
|
_call (id, method, payload, transfer) {
|
|
let reqId = this._reqId++
|
|
console.debug(method, id, payload)
|
|
this._postMessage({
|
|
clientId: id.client,
|
|
channelId: id.channel,
|
|
userId: id.user,
|
|
method: method,
|
|
reqId: reqId,
|
|
payload: payload
|
|
}, transfer)
|
|
return reqId
|
|
}
|
|
|
|
_query (id, method, payload, transfer) {
|
|
let reqId = this._call(id, method, payload, transfer)
|
|
return new Promise((resolve, reject) => {
|
|
this._requests[reqId] = [resolve, reject]
|
|
})
|
|
}
|
|
|
|
_addCall (proxy, name, id) {
|
|
let self = this
|
|
proxy[name] = function () {
|
|
self._call(id, name, Array.from(arguments))
|
|
}
|
|
}
|
|
|
|
connect (host, args) {
|
|
return this._query({}, '_connect', { host: host, args: args })
|
|
.then(id => this._client(id))
|
|
}
|
|
|
|
_client (id) {
|
|
let client = this._clients[id]
|
|
if (!client) {
|
|
client = new WorkerBasedMumbleClient(this, id)
|
|
this._clients[id] = client
|
|
}
|
|
return client
|
|
}
|
|
|
|
_onMessage (ev) {
|
|
let data = ev.data
|
|
if (data.reqId != null) {
|
|
console.debug(data)
|
|
let { reqId, result, error } = data
|
|
let [ resolve, reject ] = this._requests[reqId]
|
|
delete this._requests[reqId]
|
|
if (result) {
|
|
resolve(result)
|
|
} else {
|
|
reject(error)
|
|
}
|
|
} else if (data.clientId != null) {
|
|
console.debug(data)
|
|
let client = this._client(data.clientId)
|
|
|
|
let target
|
|
if (data.userId != null) {
|
|
target = client._user(data.userId)
|
|
} else if (data.channelId != null) {
|
|
target = client._channel(data.channelId)
|
|
} else {
|
|
target = client
|
|
}
|
|
|
|
if (data.event) {
|
|
target._dispatchEvent(data.event, data.value)
|
|
} else if (data.prop) {
|
|
target._setProp(data.prop, data.value)
|
|
}
|
|
} else if (data.voiceId != null) {
|
|
let stream = this._voiceStreams[data.voiceId]
|
|
let buffer = data.buffer
|
|
if (buffer) {
|
|
stream.write({
|
|
target: data.target,
|
|
buffer: Buffer.from(buffer)
|
|
})
|
|
} else {
|
|
delete this._voiceStreams[data.voiceId]
|
|
stream.end()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
class WorkerBasedMumbleClient extends EventEmitter {
|
|
constructor (connector, clientId) {
|
|
super()
|
|
this._connector = connector
|
|
this._id = clientId
|
|
this._users = {}
|
|
this._channels = {}
|
|
|
|
let id = { client: clientId }
|
|
connector._addCall(this, 'setSelfDeaf', id)
|
|
connector._addCall(this, 'setSelfMute', id)
|
|
connector._addCall(this, 'setSelfTexture', id)
|
|
connector._addCall(this, 'setAudioQuality', id)
|
|
|
|
connector._addCall(this, 'disconnect', id)
|
|
let _disconnect = this.disconnect
|
|
this.disconnect = () => {
|
|
_disconnect.apply(this)
|
|
delete connector._clients[id]
|
|
}
|
|
|
|
connector._addCall(this, 'createVoiceStream', id)
|
|
let _createVoiceStream = this.createVoiceStream
|
|
this.createVoiceStream = function () {
|
|
let voiceId = connector._nextVoiceId++
|
|
|
|
let args = Array.from(arguments)
|
|
args.unshift(voiceId)
|
|
_createVoiceStream.apply(this, args)
|
|
|
|
return new Writable({
|
|
write (chunk, encoding, callback) {
|
|
chunk = toArrayBuffer(chunk)
|
|
connector._postMessage({
|
|
voiceId: voiceId,
|
|
chunk: chunk
|
|
})
|
|
callback()
|
|
},
|
|
final (callback) {
|
|
connector._postMessage({
|
|
voiceId: voiceId
|
|
})
|
|
callback()
|
|
}
|
|
})
|
|
}
|
|
|
|
// Dummy client used for bandwidth calculations
|
|
this._dummyClient = new MumbleClient({ username: 'dummy' })
|
|
let defineDummyMethod = (name) => {
|
|
this[name] = function () {
|
|
return this._dummyClient[name].apply(this._dummyClient, arguments)
|
|
}
|
|
}
|
|
defineDummyMethod('getMaxBitrate')
|
|
defineDummyMethod('getActualBitrate')
|
|
let _setAudioQuality = this.setAudioQuality
|
|
this.setAudioQuality = function () {
|
|
this._dummyClient.setAudioQuality.apply(this._dummyClient, arguments)
|
|
_setAudioQuality.apply(this, arguments)
|
|
}
|
|
}
|
|
|
|
_user (id) {
|
|
let user = this._users[id]
|
|
if (!user) {
|
|
user = new WorkerBasedMumbleUser(this._connector, this, id)
|
|
this._users[id] = user
|
|
}
|
|
return user
|
|
}
|
|
|
|
_channel (id) {
|
|
let channel = this._channels[id]
|
|
if (!channel) {
|
|
channel = new WorkerBasedMumbleChannel(this._connector, this, id)
|
|
this._channels[id] = channel
|
|
}
|
|
return channel
|
|
}
|
|
|
|
_dispatchEvent (name, args) {
|
|
if (name === 'newChannel') {
|
|
args[0] = this._channel(args[0])
|
|
} else if (name === 'newUser') {
|
|
args[0] = this._user(args[0])
|
|
} else if (name === 'message') {
|
|
args[0] = this._user(args[0])
|
|
args[2] = args[2].map((id) => this._user(id))
|
|
args[3] = args[3].map((id) => this._channel(id))
|
|
args[4] = args[4].map((id) => this._channel(id))
|
|
}
|
|
args.unshift(name)
|
|
this.emit.apply(this, args)
|
|
}
|
|
|
|
_setProp (name, value) {
|
|
if (name === 'root') {
|
|
name = '_rootId'
|
|
}
|
|
if (name === 'self') {
|
|
name = '_selfId'
|
|
}
|
|
if (name === 'maxBandwidth') {
|
|
this._dummyClient.maxBandwidth = value
|
|
}
|
|
this[name] = value
|
|
}
|
|
|
|
get root () {
|
|
return this._channel(this._rootId)
|
|
}
|
|
|
|
get channels () {
|
|
return Object.values(this._channels)
|
|
}
|
|
|
|
get users () {
|
|
return Object.values(this._users)
|
|
}
|
|
|
|
get self () {
|
|
return this._user(this._selfId)
|
|
}
|
|
}
|
|
|
|
class WorkerBasedMumbleChannel extends EventEmitter {
|
|
constructor (connector, client, channelId) {
|
|
super()
|
|
this._connector = connector
|
|
this._client = client
|
|
this._id = channelId
|
|
|
|
let id = { client: client._id, channel: channelId }
|
|
connector._addCall(this, 'sendMessage', id)
|
|
}
|
|
|
|
_dispatchEvent (name, args) {
|
|
if (name === 'update') {
|
|
let [actor, props] = args
|
|
Object.entries(props).forEach((entry) => {
|
|
this._setProp(entry[0], entry[1])
|
|
})
|
|
if (props.parent != null) {
|
|
props.parent = this.parent
|
|
}
|
|
if (props.links != null) {
|
|
props.links = this.links
|
|
}
|
|
args = [
|
|
this._client._user(actor),
|
|
props
|
|
]
|
|
} else if (name === 'remove') {
|
|
delete this._client._channels[this._id]
|
|
}
|
|
args.unshift(name)
|
|
this.emit.apply(this, args)
|
|
}
|
|
|
|
_setProp (name, value) {
|
|
if (name === 'parent') {
|
|
name = '_parentId'
|
|
}
|
|
if (name === 'links') {
|
|
value = value.map((id) => this._client._channel(id))
|
|
}
|
|
this[name] = value
|
|
}
|
|
|
|
get parent () {
|
|
if (this._parentId != null) {
|
|
return this._client._channel(this._parentId)
|
|
}
|
|
}
|
|
|
|
get children () {
|
|
return Object.values(this._client._channels).filter((it) => it.parent === this)
|
|
}
|
|
}
|
|
|
|
class WorkerBasedMumbleUser extends EventEmitter {
|
|
constructor (connector, client, userId) {
|
|
super()
|
|
this._connector = connector
|
|
this._client = client
|
|
this._id = userId
|
|
|
|
let id = { client: client._id, user: userId }
|
|
connector._addCall(this, 'requestTexture', id)
|
|
connector._addCall(this, 'clearTexture', id)
|
|
connector._addCall(this, 'setMute', id)
|
|
connector._addCall(this, 'setDeaf', id)
|
|
connector._addCall(this, 'sendMessage', id)
|
|
this.setChannel = (channel) => {
|
|
connector._call(id, 'setChannel', channel._id)
|
|
}
|
|
}
|
|
|
|
_dispatchEvent (name, args) {
|
|
if (name === 'update') {
|
|
let [actor, props] = args
|
|
Object.entries(props).forEach((entry) => {
|
|
this._setProp(entry[0], entry[1])
|
|
})
|
|
if (props.channel != null) {
|
|
props.channel = this.channel
|
|
}
|
|
if (props.texture != null) {
|
|
props.texture = this.texture
|
|
}
|
|
args = [
|
|
this._client._user(actor),
|
|
props
|
|
]
|
|
} else if (name === 'voice') {
|
|
let [id] = args
|
|
let stream = new PassThrough({
|
|
objectMode: true
|
|
})
|
|
this._connector._voiceStreams[id] = stream
|
|
args = [stream]
|
|
} else if (name === 'remove') {
|
|
delete this._client._users[this._id]
|
|
}
|
|
args.unshift(name)
|
|
this.emit.apply(this, args)
|
|
}
|
|
|
|
_setProp (name, value) {
|
|
if (name === 'channel') {
|
|
name = '_channelId'
|
|
}
|
|
if (name === 'texture') {
|
|
if (value) {
|
|
let buf = ByteBuffer.wrap(value.buffer)
|
|
buf.offset = value.offset
|
|
buf.limit = value.limit
|
|
value = buf
|
|
}
|
|
}
|
|
this[name] = value
|
|
}
|
|
|
|
get channel () {
|
|
return this._client._channels[this._channelId]
|
|
}
|
|
}
|
|
export default WorkerBasedMumbleConnector
|