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[tor-commits] [snowflake/master] Initialize arrays when constructing



commit 3839c2e0b118a6d569a3be1642d801c2a4efd100
Author: Arlo Breault <arlolra@xxxxxxxxx>
Date:   Wed May 8 13:29:23 2019 -0400

    Initialize arrays when constructing
    
    Otherwise, this is set on the prototype and shared across instances :/
    
    Note the change to the test that highlights this bug.  A proxy pair was
    already created when an earlier test called `beginWebRTC()` but a new
    Snowflake instance should start with an empty array.
---
 proxy/proxypair.coffee           | 5 ++---
 proxy/snowflake.coffee           | 2 +-
 proxy/spec/snowflake.spec.coffee | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/proxy/proxypair.coffee b/proxy/proxypair.coffee
index da45784..bd6850b 100644
--- a/proxy/proxypair.coffee
+++ b/proxy/proxypair.coffee
@@ -10,8 +10,6 @@ Broker with an WebRTC answer.
 class ProxyPair
   MAX_BUFFER: 10 * 1024 * 1024
   pc:          null
-  c2rSchedule: []
-  r2cSchedule: []
   client:      null  # WebRTC Data channel
   relay:       null   # websocket
   timer:       0
@@ -27,8 +25,9 @@ class ProxyPair
   - @rateLimit specifies a rate limit on traffic
   ###
   constructor: (@relayAddr, @rateLimit) ->
-    @active = false
     @id = Util.genSnowflakeID()
+    @c2rSchedule = []
+    @r2cSchedule = []
 
   # Prepare a WebRTC PeerConnection and await for an SDP offer.
   begin: ->
diff --git a/proxy/snowflake.coffee b/proxy/snowflake.coffee
index 07c90c6..9656c0b 100644
--- a/proxy/snowflake.coffee
+++ b/proxy/snowflake.coffee
@@ -12,7 +12,6 @@ TODO: More documentation
 # Minimum viable snowflake for now - just 1 client.
 class Snowflake
   relayAddr:  null
-  proxyPairs: []
   rateLimit:  null
   retries:    0
 
@@ -25,6 +24,7 @@ class Snowflake
   # Prepare the Snowflake with a Broker (to find clients) and optional UI.
   constructor: (@broker, @ui) ->
     @state = Snowflake.MODE.INIT
+    @proxyPairs = []
 
     rateLimitBytes = undefined
     if 'off' != query['ratelimit']
diff --git a/proxy/spec/snowflake.spec.coffee b/proxy/spec/snowflake.spec.coffee
index 6986883..bb6e348 100644
--- a/proxy/spec/snowflake.spec.coffee
+++ b/proxy/spec/snowflake.spec.coffee
@@ -68,7 +68,7 @@ describe 'Snowflake', ->
   it 'can make a proxypair', ->
     s = new Snowflake(new FakeBroker(), fakeUI)
     s.makeProxyPair()
-    expect(s.proxyPairs.length).toBe 2
+    expect(s.proxyPairs.length).toBe 1
 
   it 'gives a dialog when closing, only while active', ->
     silenceNotifications = false



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