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Query string params available in the snowflake proxy for manual mode, broker url, and target relay address

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This commit is contained in:
Serene Han 2016-01-23 09:27:23 -08:00
parent 77fbfe0e66
commit 0301ff1879
4 changed files with 43 additions and 23 deletions
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43
proxy/snowflake.coffee
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@ -7,17 +7,21 @@ Uses WebRTC from the client, and websocket to the server.
Assume that the webrtc client plugin is always the offerer, in which case
this must always act as the answerer.
###
DEFAULT_WEBSOCKET = '192.81.135.242:9901'
DEFAULT_BROKER = 'https://snowflake-reg.appspot.com/'
DEFAULT_BROKER = 'snowflake-reg.appspot.com'
DEFAULT_RELAY =
host: '192.81.135.242'
port: 9901
COPY_PASTE_ENABLED = false
DEFAULT_PORTS =
http: 80
https: 443
DEBUG = false
query = null
if window && window.location
query = Query.parse(window.location.search.substr(1))
DEBUG = Params.getBool(query, 'debug', false)
COPY_PASTE_ENABLED = Params.getBool(query, 'manual', false)
# HEADLESS is true if we are running not in a browser with a DOM.
HEADLESS = 'undefined' == typeof(document)
@ -79,34 +83,31 @@ class Snowflake
@rateLimit = new BucketRateLimit(rateLimitBytes * RATE_LIMIT_HISTORY,
RATE_LIMIT_HISTORY)
# TODO: Should fetch from broker later.
# TODO: Should potentially fetch from broker later.
# Set the target relay address spec, which is expected to be a websocket relay.
setRelayAddr: (relayAddr) ->
addr = Parse.address relayAddr
if !addr
log 'Invalid address spec.'
return false
@relayAddr = addr
log 'Using ' + relayAddr + ' as Relay.'
@relayAddr = relayAddr
log 'Using ' + relayAddr.host + ':' + relayAddr.port + ' as Relay.'
log 'Input offer from the snowflake client:' if COPY_PASTE_ENABLED
return true
# Initialize WebRTC PeerConnection
beginWebRTC: ->
beginWebRTC: (automatic) ->
@state = MODE.WEBRTC_CONNECTING
for i in [1..CONNECTIONS_PER_CLIENT]
@makeProxyPair @relayAddr
@proxyPair = @proxyPairs[0]
return if !automatic
# Poll broker for clients.
findClients = =>
recv = broker.getClientOffer()
recv.then((desc) =>
recv.then (desc) =>
offer = JSON.parse desc
log 'Received:\n\n' + offer.sdp + '\n'
@receiveOffer offer
, (err) ->
log err
setTimeout(findClients, 1000)
)
findClients()
# Receive an SDP offer from some client assigned by the Broker.
@ -176,11 +177,6 @@ Interface =
if !COPY_PASTE_ENABLED
log 'No input expected - Copy Paste Signalling disabled.'
else switch snowflake.state
when MODE.INIT
# Set target relay.
if !(snowflake.setRelayAddr msg)
log 'Defaulting to websocket relay at ' + DEFAULT_WEBSOCKET
snowflake.setRelayAddr DEFAULT_WEBSOCKET
when MODE.WEBRTC_CONNECTING
Signalling.receive msg
when MODE.WEBRTC_READY
@ -229,13 +225,14 @@ init = ->
$input.onkeydown = (e) -> $send.onclick() if 13 == e.keyCode # enter
log '== snowflake browser proxy =='
broker = new Broker DEFAULT_BROKER
log 'Copy-Paste mode detected.' if COPY_PASTE_ENABLED
brokerUrl = Params.getString(query, 'broker', DEFAULT_BROKER)
broker = new Broker brokerUrl
snowflake = new Snowflake(broker)
window.snowflake = snowflake
if COPY_PASTE_ENABLED
log 'Input desired relay address:'
else
snowflake.setRelayAddr DEFAULT_WEBSOCKET
snowflake.beginWebRTC()
relayAddr = Params.getAddress(query, 'relay', DEFAULT_RELAY)
snowflake.setRelayAddr relayAddr
snowflake.beginWebRTC(!COPY_PASTE_ENABLED)
window.onload = init if window