June 2011 - tor-commits - lists.torproject.org

[flashproxy/rtmfp] Make swfcat.swf depend on *.as.
by dcf＠torproject.org 09 Jun '11

09 Jun '11

commit e9b53ee59b7bc95ea93df01b8f0b4f62ba92e3b2 Author: David Fifield <david(a)bamsoftware.com> Date: Thu Jun 9 07:14:25 2011 -0700 Make swfcat.swf depend on *.as. --- Makefile | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/Makefile b/Makefile index 4e22e1d..c98c0ee 100644 --- a/Makefile +++ b/Makefile @@ -7,5 +7,7 @@ all: $(TARGETS) %.swf: %.as badge.png $(MXMLC) -output $@ -static-link-runtime-shared-libraries -define=RTMFP::CIRRUS_KEY,\"$(CIRRUS_KEY)\" $< +swfcat.swf: *.as badge.png + clean: rm -f $(TARGETS)

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[flashproxy/rtmfp] Pulling Facilitator stuff out of rtmfp package, adding some commentary and boilerplate for an SQSProxyPair (currently is just a TCPProxyPair)
by dcf＠torproject.org 09 Jun '11

09 Jun '11

commit 6307de6a85132ea3859ab0dca7e95db9b04d0af0 Author: Nate Hardison <nate(a)rescomp-09-154551.stanford.edu> Date: Thu Jun 9 01:12:37 2011 -0700 Pulling Facilitator stuff out of rtmfp package, adding some commentary and boilerplate for an SQSProxyPair (currently is just a TCPProxyPair) --- FacilitatorSocket.as | 103 +++++++++++++++++++++++++++++++ SQSProxyPair.as | 86 ++++++++++++++++++++++++++ events/FacilitatorSocketEvent.as | 22 +++++++ rtmfp/FacilitatorSocket.as | 104 -------------------------------- rtmfp/events/FacilitatorSocketEvent.as | 22 ------- swfcat.as | 25 +++++++- 6 files changed, 233 insertions(+), 129 deletions(-) diff --git a/FacilitatorSocket.as b/FacilitatorSocket.as new file mode 100644 index 0000000..3930fea --- /dev/null +++ b/FacilitatorSocket.as @@ -0,0 +1,103 @@ +package +{ + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.HTTPStatusEvent; + import flash.events.IOErrorEvent; + import flash.events.SecurityErrorEvent; + import flash.net.URLLoader; + import flash.net.URLLoaderDataFormat; + import flash.net.URLRequest; + import flash.net.URLRequestMethod; + import flash.net.URLVariables; + + import events.FacilitatorSocketEvent; + + [Event(name=FacilitatorSocketEvent.CONNECT_FAILED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] + [Event(name=FacilitatorSocketEvent.REGISTRATION_FAILED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] + [Event(name=FacilitatorSocketEvent.REGISTRATION_RECEIVED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] + [Event(name=FacilitatorSocketEvent.REGISTRATIONS_EMPTY, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] + public class FacilitatorSocket extends EventDispatcher + { + private var host:String; + private var port:uint; + + public function FacilitatorSocket(host:String, port:uint) + { + this.host = host; + this.port = port; + } + + public function get_registration():void + { + make_request(URLRequestMethod.GET); + } + + public function post_registration(registration_data:String):void + { + var data:URLVariables = new URLVariables(); + data.client = registration_data; + make_request(URLRequestMethod.POST, data); + } + + private function fail():void + { + dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.CONNECT_FAILED)); + } + + private function make_request(method:String, data:URLVariables = null):void + { + var request:URLRequest = new URLRequest(url) + request.data = data; + request.method = method; + + var url_loader:URLLoader = new URLLoader(); + url_loader = new URLLoader(); + url_loader.dataFormat = URLLoaderDataFormat.VARIABLES; + + url_loader.addEventListener(Event.COMPLETE, on_complete_event); + url_loader.addEventListener(HTTPStatusEvent.HTTP_STATUS, on_http_status_event); + url_loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, on_security_error_event); + url_loader.addEventListener(IOErrorEvent.IO_ERROR, on_io_error_event); + + url_loader.load(request); + } + + private function on_complete_event(event:Event):void + { + try { + var client_id:String = event.target.data.client; + if (client_id == "Registration list empty") { + dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.REGISTRATIONS_EMPTY)); + } else { + dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.REGISTRATION_RECEIVED, client_id)); + } + } catch (e:Error) { + /* error is thrown for POST when we don't care about + the response anyways */ + } + + event.target.close() + } + + private function on_http_status_event(event:HTTPStatusEvent):void + { + /* empty for now */ + } + + private function on_io_error_event(event:IOErrorEvent):void + { + fail(); + } + + private function on_security_error_event(event:SecurityErrorEvent):void + { + fail(); + } + + private function get url():String + { + return "http://" + host + ":" + port; + } + } +} \ No newline at end of file diff --git a/SQSProxyPair.as b/SQSProxyPair.as new file mode 100644 index 0000000..54f763d --- /dev/null +++ b/SQSProxyPair.as @@ -0,0 +1,86 @@ +package +{ + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.IOErrorEvent; + import flash.events.ProgressEvent; + import flash.events.SecurityErrorEvent; + import flash.net.Socket; + import flash.utils.ByteArray; + + public class SQSProxyPair extends ProxyPair + { + private var client_socket:Socket; + + public function SQSProxyPair(ui:swfcat) + { + super(this, ui); + + log("Starting SQS proxy pair"); + setup_client_socket(); + } + + override public function set client(client_addr:Object):void + { + this.client_addr = client_addr; + log("Client: connecting to " + client_addr.host + ":" + client_addr.port + "."); + client_socket.connect(client_addr.host, client_addr.port); + } + + override public function close():void + { + super.close(); + if (client_socket != null && client_socket.connected) { + client_socket.close(); + } + dispatchEvent(new Event(Event.CLOSE)); + } + + override public function get connected():Boolean + { + return (super.connected && client_socket != null && client_socket.connected); + } + + override protected function transfer_bytes(src:Object, dst:Object, num_bytes:uint):void + { + var bytes:ByteArray = new ByteArray(); + + if (src == null) { + src = client_socket; + } + + if (dst == null) { + dst = client_socket; + } + + Socket(src).readBytes(bytes, 0, num_bytes); + log("SQSProxyPair: transferring " + num_bytes + " bytes."); + Socket(dst).writeBytes(bytes); + } + + private function setup_client_socket():void + { + client_socket = new Socket(); + + client_socket.addEventListener(Event.CONNECT, function (e:Event):void { + log("Client: connected to " + client_addr.host + ":" + client_addr.port + "."); + if (connected) { + dispatchEvent(new Event(Event.CONNECT)); + } + }); + client_socket.addEventListener(Event.CLOSE, function (e:Event):void { + log("Client: closed."); + close(); + }); + client_socket.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { + log("Client: I/O error: " + e.text + "."); + close(); + }); + client_socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { + log("Client: security error: " + e.text + "."); + close(); + }); + client_socket.addEventListener(ProgressEvent.SOCKET_DATA, client_to_relay); + } + } +} \ No newline at end of file diff --git a/events/FacilitatorSocketEvent.as b/events/FacilitatorSocketEvent.as new file mode 100644 index 0000000..9fc478b --- /dev/null +++ b/events/FacilitatorSocketEvent.as @@ -0,0 +1,22 @@ +package events +{ + import flash.events.Event; + + public class FacilitatorSocketEvent extends Event + { + public static const CONNECT_CLOSED:String = "connectClosed"; + public static const CONNECT_FAILED:String = "connectFailed"; + public static const CONNECT_SUCCESS:String = "connectSuccess"; + public static const REGISTRATION_RECEIVED:String = "registrationReceived"; + public static const REGISTRATION_FAILED:String = "registrationFailed"; + public static const REGISTRATIONS_EMPTY:String = "registrationsEmpty"; + + public var client:String; + + public function FacilitatorSocketEvent(type:String, client:String = null, bubbles:Boolean = false, cancelable:Boolean = false) + { + super(type, bubbles, cancelable); + this.client = client; + } + } +} diff --git a/rtmfp/FacilitatorSocket.as b/rtmfp/FacilitatorSocket.as deleted file mode 100644 index 32c8a7d..0000000 --- a/rtmfp/FacilitatorSocket.as +++ /dev/null @@ -1,104 +0,0 @@ -package rtmfp -{ - import flash.events.Event; - import flash.events.EventDispatcher; - import flash.events.HTTPStatusEvent; - import flash.events.IOErrorEvent; - import flash.events.SecurityErrorEvent; - import flash.net.URLLoader; - import flash.net.URLLoaderDataFormat; - import flash.net.URLRequest; - import flash.net.URLRequestMethod; - import flash.net.URLVariables; - import flash.system.Security; - - import rtmfp.events.FacilitatorSocketEvent; - - [Event(name=FacilitatorSocketEvent.CONNECT_FAILED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] - [Event(name=FacilitatorSocketEvent.REGISTRATION_FAILED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] - [Event(name=FacilitatorSocketEvent.REGISTRATION_RECEIVED, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] - [Event(name=FacilitatorSocketEvent.REGISTRATIONS_EMPTY, type="com.flashproxy.rtmfp.events.FacilitatorSocketEvent")] - public class FacilitatorSocket extends EventDispatcher - { - private var host:String; - private var port:uint; - - public function FacilitatorSocket(host:String, port:uint) - { - this.host = host; - this.port = port; - } - - public function get_registration():void - { - make_request(URLRequestMethod.GET); - } - - public function post_registration(registration_data:String):void - { - var data:URLVariables = new URLVariables(); - data.client = registration_data; - make_request(URLRequestMethod.POST, data); - } - - private function fail():void - { - dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.CONNECT_FAILED)); - } - - private function make_request(method:String, data:URLVariables = null):void - { - var request:URLRequest = new URLRequest(url) - request.data = data; - request.method = method; - - var url_loader:URLLoader = new URLLoader(); - url_loader = new URLLoader(); - url_loader.dataFormat = URLLoaderDataFormat.VARIABLES; - - url_loader.addEventListener(Event.COMPLETE, on_complete_event); - url_loader.addEventListener(HTTPStatusEvent.HTTP_STATUS, on_http_status_event); - url_loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, on_security_error_event); - url_loader.addEventListener(IOErrorEvent.IO_ERROR, on_io_error_event); - - url_loader.load(request); - } - - private function on_complete_event(event:Event):void - { - try { - var client_id:String = event.target.data.client; - if (client_id == "Registration list empty") { - dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.REGISTRATIONS_EMPTY)); - } else { - dispatchEvent(new FacilitatorSocketEvent(FacilitatorSocketEvent.REGISTRATION_RECEIVED, client_id)); - } - } catch (e:Error) { - /* error is thrown for POST when we don't care about - the response anyways */ - } - - event.target.close() - } - - private function on_http_status_event(event:HTTPStatusEvent):void - { - /* empty for now */ - } - - private function on_io_error_event(event:IOErrorEvent):void - { - fail(); - } - - private function on_security_error_event(event:SecurityErrorEvent):void - { - fail(); - } - - private function get url():String - { - return "http://" + host + ":" + port; - } - } -} \ No newline at end of file diff --git a/rtmfp/events/FacilitatorSocketEvent.as b/rtmfp/events/FacilitatorSocketEvent.as deleted file mode 100644 index a0599aa..0000000 --- a/rtmfp/events/FacilitatorSocketEvent.as +++ /dev/null @@ -1,22 +0,0 @@ -package rtmfp.events -{ - import flash.events.Event; - - public class FacilitatorSocketEvent extends Event - { - public static const CONNECT_CLOSED:String = "connectClosed"; - public static const CONNECT_FAILED:String = "connectFailed"; - public static const CONNECT_SUCCESS:String = "connectSuccess"; - public static const REGISTRATION_RECEIVED:String = "registrationReceived"; - public static const REGISTRATION_FAILED:String = "registrationFailed"; - public static const REGISTRATIONS_EMPTY:String = "registrationsEmpty"; - - public var client:String; - - public function FacilitatorSocketEvent(type:String, client:String = null, bubbles:Boolean = false, cancelable:Boolean = false) - { - super(type, bubbles, cancelable); - this.client = client; - } - } -} diff --git a/swfcat.as b/swfcat.as index 7729d2c..627a3cd 100644 --- a/swfcat.as +++ b/swfcat.as @@ -8,14 +8,22 @@ package import flash.events.Event; import flash.utils.setTimeout; + import FacilitatorSocket; + import events.FacilitatorSocketEvent; + + import ProxyPair; + import RTMFPProxyPair; + import SQSProxyPair; + import TCPProxyPair; + import rtmfp.CirrusSocket; - import rtmfp.FacilitatorSocket; import rtmfp.events.CirrusSocketEvent; - import rtmfp.events.FacilitatorSocketEvent; public class swfcat extends Sprite { - /* Adobe's Cirrus server and Nate's key */ + /* Adobe's Cirrus server for RTMFP connections. + The Cirrus key is defined at compile time by + reading from the CIRRUS_KEY environment var. */ private const DEFAULT_CIRRUS_ADDR:String = "rtmfp://p2p.rtmfp.net"; private const DEFAULT_CIRRUS_KEY:String = RTMFP::CIRRUS_KEY; @@ -25,6 +33,7 @@ package port: 9002 }; + /* Default Tor client to use in case of RTMFP connection */ private const DEFAULT_TOR_CLIENT_ADDR:Object = { host: "127.0.0.1", port: 9002 @@ -122,6 +131,8 @@ package fac_addr = DEFAULT_FACILITATOR_ADDR; } + /* TODO: modify this for the client so that it can specify + a relay for the proxy to use */ relay_spec = this.loaderInfo.parameters["relay"]; if (relay_spec) { puts("Relay spec: \"" + relay_spec + "\""); @@ -259,6 +270,14 @@ package return new RTMFPProxyPair(this, s_c, s_c.local_stream_name); } + // currently is the same as TCPProxyPair + // could be interesting to see how this works + // can't imagine it will work terribly well... + private function sqs_proxy_pair_factory():ProxyPair + { + return new SQSProxyPair(this); + } + private function tcp_proxy_pair_factory():ProxyPair { return new TCPProxyPair(this);

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[flashproxy/rtmfp] Merged rtmfpcat with swfcat, now proxy can help TCP and RTMFP clients
by dcf＠torproject.org 09 Jun '11

09 Jun '11

commit 1d66a5de55e165334cbdd35ad5d38cf4157d9a2a Author: Nate Hardison <nate(a)rescomp-09-154551.stanford.edu> Date: Wed Jun 8 23:56:03 2011 -0700 Merged rtmfpcat with swfcat, now proxy can help TCP and RTMFP clients --- Makefile | 6 +- ProxyPair.as | 273 +++++++++++++++++++ RTMFPProxyPair.as | 101 +++++++ TCPProxyPair.as | 86 ++++++ connector.py | 4 +- facilitator.py | 7 +- rtmfp/ProxyPair.as | 279 ------------------- rtmfp/RTMFPSocket.as | 2 +- rtmfpcat.as | 353 ------------------------ swfcat.as | 723 ++++++++++++++++++++------------------------------ 10 files changed, 756 insertions(+), 1078 deletions(-) diff --git a/Makefile b/Makefile index 3595385..4e22e1d 100644 --- a/Makefile +++ b/Makefile @@ -1,12 +1,10 @@ MXMLC ?= mxmlc -TARGETS = rtmfpcat.swf +TARGETS = swfcat.swf all: $(TARGETS) -swfcat.swf: badge.png - -%.swf: %.as +%.swf: %.as badge.png $(MXMLC) -output $@ -static-link-runtime-shared-libraries -define=RTMFP::CIRRUS_KEY,\"$(CIRRUS_KEY)\" $< clean: diff --git a/ProxyPair.as b/ProxyPair.as new file mode 100644 index 0000000..aef4e2e --- /dev/null +++ b/ProxyPair.as @@ -0,0 +1,273 @@ +package +{ + import flash.errors.IllegalOperationError; + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.IOErrorEvent; + import flash.events.ProgressEvent; + import flash.events.SecurityErrorEvent; + import flash.net.Socket; + import flash.utils.ByteArray; + import flash.utils.clearTimeout; + import flash.utils.setTimeout; + + import swfcat; + + public class ProxyPair extends EventDispatcher + { + private var ui:swfcat; + + protected var client_addr:Object; + + /* Not defined here: subclasses should define their own + * protected var client_socket:Object; + */ + + private var c2r_schedule:Array; + + private var relay_addr:Object; + private var relay_socket:Socket; + private var r2c_schedule:Array; + + // Bytes per second. Set to undefined to disable limit. + private const RATE_LIMIT:Number = undefined; //10000; + // Seconds. + private const RATE_LIMIT_HISrelayY:Number = 5.0; + + private var rate_limit:RateLimit; + + // Callback id. + private var flush_id:uint; + + public function ProxyPair(self:ProxyPair, ui:swfcat) + { + if (self != this) { + //only a subclass can pass a valid reference to self + throw new IllegalOperationError("ProxyPair cannot be instantiated directly."); + } + + this.ui = ui; + this.c2r_schedule = new Array(); + this.r2c_schedule = new Array(); + + if (RATE_LIMIT) + rate_limit = new BucketRateLimit(RATE_LIMIT * RATE_LIMIT_HISrelayY, RATE_LIMIT_HISrelayY); + else + rate_limit = new RateUnlimit(); + + setup_relay_socket(); + + /* client_socket setup should be taken */ + /* care of in the subclass constructor */ + } + + public function close():void + { + if (relay_socket != null && relay_socket.connected) { + relay_socket.close(); + } + + /* subclasses should override to close */ + /* their client_socket according to impl. */ + } + + public function get connected():Boolean + { + return (relay_socket != null && relay_socket.connected); + + /* subclasses should override to check */ + /* connectivity of their client_socket. */ + } + + public function set client(client_addr:Object):void + { + /* subclasses should override to */ + /* connect the client_socket here */ + } + + public function set relay(relay_addr:Object):void + { + this.relay_addr = relay_addr; + log("Relay: connecting to " + relay_addr.host + ":" + relay_addr.port + "."); + relay_socket.connect(relay_addr.host, relay_addr.port); + } + + protected function transfer_bytes(src:Object, dst:Object, num_bytes:uint):void + { + /* No-op: must be overridden by subclasses */ + } + + private function setup_relay_socket():void + { + relay_socket = new Socket(); + relay_socket.addEventListener(Event.CONNECT, function (e:Event):void { + log("Relay: connected to " + relay_addr.host + ":" + relay_addr.port + "."); + if (connected) { + dispatchEvent(new Event(Event.CONNECT)); + } + }); + relay_socket.addEventListener(Event.CLOSE, function (e:Event):void { + log("Relay: closed connection."); + close(); + }); + relay_socket.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { + log("Relay: I/O error: " + e.text + "."); + close(); + }); + relay_socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { + log("Relay: security error: " + e.text + "."); + close(); + }); + relay_socket.addEventListener(ProgressEvent.SOCKET_DATA, relay_to_client); + } + + protected function client_to_relay(e:ProgressEvent):void + { + c2r_schedule.push(e.bytesLoaded); + flush(); + } + + private function relay_to_client(e:ProgressEvent):void + { + r2c_schedule.push(e.bytesLoaded); + flush(); + } + + /* Send as much data as the rate limit currently allows. */ + private function flush():void + { + if (flush_id) + clearTimeout(flush_id); + flush_id = undefined; + + if (!connected) + /* Can't do anything until connected. */ + return; + + while (!rate_limit.is_limited() && (c2r_schedule.length > 0 || r2c_schedule.length > 0)) { + var num_bytes:uint; + + if (c2r_schedule.length > 0) { + num_bytes = c2r_schedule.shift(); + transfer_bytes(null, relay_socket, num_bytes); + rate_limit.update(num_bytes); + } + + if (r2c_schedule.length > 0) { + num_bytes = r2c_schedule.shift(); + transfer_bytes(relay_socket, null, num_bytes); + rate_limit.update(num_bytes); + } + } + + /* Call again when safe, if necessary. */ + if (c2r_schedule.length > 0 || r2c_schedule.length > 0) + flush_id = setTimeout(flush, rate_limit.when() * 1000); + } + + /* Helper function to write output to the + * swfcat console. Set as protected for + * subclasses */ + protected function log(s:String):void + { + ui.puts(s); + } + } +} + +import flash.utils.getTimer; + +class RateLimit +{ + public function RateLimit() + { + } + + public function update(n:Number):Boolean + { + return true; + } + + public function when():Number + { + return 0.0; + } + + public function is_limited():Boolean + { + return false; + } +} + +class RateUnlimit extends RateLimit +{ + public function RateUnlimit() + { + } + + public override function update(n:Number):Boolean + { + return true; + } + + public override function when():Number + { + return 0.0; + } + + public override function is_limited():Boolean + { + return false; + } +} + +class BucketRateLimit extends RateLimit +{ + private var amount:Number; + private var capacity:Number; + private var time:Number; + private var last_update:uint; + + public function BucketRateLimit(capacity:Number, time:Number) + { + this.amount = 0.0; + /* capacity / time is the rate we are aiming for. */ + this.capacity = capacity; + this.time = time; + this.last_update = getTimer(); + } + + private function age():void + { + var now:uint; + var delta:Number; + + now = getTimer(); + delta = (now - last_update) / 1000.0; + last_update = now; + + amount -= delta * capacity / time; + if (amount < 0.0) + amount = 0.0; + } + + public override function update(n:Number):Boolean + { + age(); + amount += n; + + return amount <= capacity; + } + + public override function when():Number + { + age(); + return (amount - capacity) / (capacity / time); + } + + public override function is_limited():Boolean + { + age(); + return amount > capacity; + } +} \ No newline at end of file diff --git a/RTMFPProxyPair.as b/RTMFPProxyPair.as new file mode 100644 index 0000000..346d63c --- /dev/null +++ b/RTMFPProxyPair.as @@ -0,0 +1,101 @@ +package +{ + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.ProgressEvent; + import flash.net.Socket; + import flash.utils.ByteArray; + + import rtmfp.CirrusSocket; + import rtmfp.RTMFPSocket; + import rtmfp.events.RTMFPSocketEvent; + + public class RTMFPProxyPair extends ProxyPair + { + private var cirrus_socket:CirrusSocket; + private var client_socket:RTMFPSocket; + private var listen_stream:String; + + public function RTMFPProxyPair(ui:swfcat, cirrus_socket:CirrusSocket, listen_stream:String) + { + super(this, ui); + + log("Starting RTMFP proxy pair on stream " + listen_stream); + + this.cirrus_socket = cirrus_socket; + this.listen_stream = listen_stream; + + setup_client_socket(); + } + + override public function set client(client_addr:Object):void + { + this.client_addr = client_addr; + log("Client: connecting to " + client_addr.peer + " on stream " + client_addr.stream + "."); + client_socket.connect(client_addr.peer, client_addr.stream); + } + + override public function close():void + { + super.close(); + if (client_socket != null && client_socket.connected) { + client_socket.close(); + } + dispatchEvent(new Event(Event.CLOSE)); + } + + override public function get connected():Boolean + { + return (super.connected && client_socket != null && client_socket.connected); + } + + override protected function transfer_bytes(src:Object, dst:Object, num_bytes:uint):void + { + var bytes:ByteArray = new ByteArray(); + + if (src == null) { + src = client_socket; + RTMFPSocket(src).readBytes(bytes, 0, num_bytes); + log("RTMFPProxyPair: read " + num_bytes + " bytes from client, writing to relay."); + Socket(dst).writeBytes(bytes); + } + + if (dst == null) { + dst = client_socket; + Socket(src).readBytes(bytes, 0, num_bytes); + log("RTMFPProxyPair: read " + num_bytes + " bytes from relay, writing to client."); + RTMFPSocket(dst).writeBytes(bytes); + } + } + + private function setup_client_socket():void + { + client_socket = new RTMFPSocket(cirrus_socket); + client_socket.addEventListener(RTMFPSocketEvent.CONNECT_FAILED, function (e:RTMFPSocketEvent):void { + log("Client: connection failed to " + client_addr.peer + " on stream " + client_addr.stream + "."); + }); + client_socket.addEventListener(RTMFPSocketEvent.CONNECT_SUCCESS, function (e:RTMFPSocketEvent):void { + log("Client: connected to " + client_addr.peer + " on stream " + client_addr.stream + "."); + if (connected) { + dispatchEvent(new Event(Event.CONNECT)); + } + }); + client_socket.addEventListener(RTMFPSocketEvent.PEER_CONNECTED, function (e:RTMFPSocketEvent):void { + log("Peer connected."); + }); + client_socket.addEventListener(RTMFPSocketEvent.PEER_DISCONNECTED, function (e:RTMFPSocketEvent):void { + log("Client: disconnected from " + client_addr.peer + "."); + close(); + }); + client_socket.addEventListener(RTMFPSocketEvent.PLAY_STARTED, function (e:RTMFPSocketEvent):void { + log("Play started."); + }); + client_socket.addEventListener(RTMFPSocketEvent.PUBLISH_STARTED, function (e:RTMFPSocketEvent):void { + log("Publishing started."); + }); + client_socket.addEventListener(ProgressEvent.SOCKET_DATA, client_to_relay); + + client_socket.listen(listen_stream); + } + } +} \ No newline at end of file diff --git a/TCPProxyPair.as b/TCPProxyPair.as new file mode 100644 index 0000000..b81af3e --- /dev/null +++ b/TCPProxyPair.as @@ -0,0 +1,86 @@ +package +{ + import flash.events.Event; + import flash.events.EventDispatcher; + import flash.events.IOErrorEvent; + import flash.events.ProgressEvent; + import flash.events.SecurityErrorEvent; + import flash.net.Socket; + import flash.utils.ByteArray; + + public class TCPProxyPair extends ProxyPair + { + private var client_socket:Socket; + + public function TCPProxyPair(ui:swfcat) + { + super(this, ui); + + log("Starting TCP proxy pair"); + setup_client_socket(); + } + + override public function set client(client_addr:Object):void + { + this.client_addr = client_addr; + log("Client: connecting to " + client_addr.host + ":" + client_addr.port + "."); + client_socket.connect(client_addr.host, client_addr.port); + } + + override public function close():void + { + super.close(); + if (client_socket != null && client_socket.connected) { + client_socket.close(); + } + dispatchEvent(new Event(Event.CLOSE)); + } + + override public function get connected():Boolean + { + return (super.connected && client_socket != null && client_socket.connected); + } + + override protected function transfer_bytes(src:Object, dst:Object, num_bytes:uint):void + { + var bytes:ByteArray = new ByteArray(); + + if (src == null) { + src = client_socket; + } + + if (dst == null) { + dst = client_socket; + } + + Socket(src).readBytes(bytes, 0, num_bytes); + log("TCPProxyPair: transferring " + num_bytes + " bytes."); + Socket(dst).writeBytes(bytes); + } + + private function setup_client_socket():void + { + client_socket = new Socket(); + + client_socket.addEventListener(Event.CONNECT, function (e:Event):void { + log("Client: connected to " + client_addr.host + ":" + client_addr.port + "."); + if (connected) { + dispatchEvent(new Event(Event.CONNECT)); + } + }); + client_socket.addEventListener(Event.CLOSE, function (e:Event):void { + log("Client: closed."); + close(); + }); + client_socket.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { + log("Client: I/O error: " + e.text + "."); + close(); + }); + client_socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { + log("Client: security error: " + e.text + "."); + close(); + }); + client_socket.addEventListener(ProgressEvent.SOCKET_DATA, client_to_relay); + } + } +} \ No newline at end of file diff --git a/connector.py b/connector.py index a683de0..d20a5b6 100755 --- a/connector.py +++ b/connector.py @@ -13,7 +13,7 @@ import urllib import xml.sax.saxutils DEFAULT_REMOTE_ADDRESS = "127.0.0.1" -DEFAULT_REMOTE_PORT = 3333 +DEFAULT_REMOTE_PORT = 9002 DEFAULT_LOCAL_ADDRESS = "127.0.0.1" DEFAULT_LOCAL_PORT = 9001 DEFAULT_FACILITATOR_PORT = 9002 @@ -281,7 +281,7 @@ def register(): spec = format_addr((None, options.remote_addr[1])) log(u"Registering \"%s\" with %s." % (spec, format_addr(options.facilitator_addr))) http = httplib.HTTPConnection(*options.facilitator_addr) - http.request("POST", "/", urllib.urlencode({"client": spec})) + http.request("POST", "/", urllib.urlencode({"client": spec}), {"Content-Type":"application/x-www-form-urlencoded"}) http.close() return True diff --git a/facilitator.py b/facilitator.py index 0ea86a1..d6c598d 100755 --- a/facilitator.py +++ b/facilitator.py @@ -11,6 +11,7 @@ import sys import threading import time import urllib +import xml.sax.saxutils DEFAULT_ADDRESS = "0.0.0.0" DEFAULT_PORT = 9002 @@ -216,10 +217,6 @@ class Handler(BaseHTTPServer.BaseHTTPRequestHandler): environ = {'REQUEST_METHOD' : 'POST', 'CONTENT_TYPE' : self.headers['Content-Type']}) - if self.path == "/crossdomain.xml": - self.send_crossdomain() - return - client_specs = data["client"] if client_specs is None or client_specs.value is None: log(u"client %s missing \"client\" param" % format_addr(self.client_address)) @@ -257,7 +254,7 @@ class Handler(BaseHTTPServer.BaseHTTPRequestHandler): crossdomain = """\ <cross-domain-policy> <allow-access-from domain="*" to-ports="%s"/> -</cross-domain-policy>\r\n""" % (address[1]) +</cross-domain-policy>\r\n""" % xml.sax.saxutils.escape(str(address[1])) self.send_response(200) self.send_header('Content-Type', 'application/xml') self.send_header('Content-Length', str(len(crossdomain))) diff --git a/rtmfp/ProxyPair.as b/rtmfp/ProxyPair.as deleted file mode 100644 index 159abde..0000000 --- a/rtmfp/ProxyPair.as +++ /dev/null @@ -1,279 +0,0 @@ -package rtmfp -{ - import flash.events.Event; - import flash.events.EventDispatcher; - import flash.events.IOErrorEvent; - import flash.events.ProgressEvent; - import flash.events.SecurityErrorEvent; - import flash.net.Socket; - import flash.utils.ByteArray; - import flash.utils.clearTimeout; - import flash.utils.setTimeout; - - import rtmfp.CirrusSocket; - import rtmfp.RTMFPSocket; - import rtmfp.events.RTMFPSocketEvent; - - public class ProxyPair extends EventDispatcher - { - private var ui:rtmfpcat; - - private var s_p:RTMFPSocket; - private var s_r:Socket; - - private var relay_host:String; - private var relay_port:uint; - - private var p2r_schedule:Array; - private var r2p_schedule:Array; - - // Bytes per second. Set to undefined to disable limit. - public const RATE_LIMIT:Number = 10000; - // Seconds. - private const RATE_LIMIT_HISrelayY:Number = 5.0; - - private var rate_limit:RateLimit; - - // Callback id. - private var flush_id:uint; - - public function ProxyPair(ui:rtmfpcat, s_c:CirrusSocket, relay_host:String, relay_port:uint) - { - this.ui = ui; - this.relay_host = relay_host; - this.relay_port = relay_port; - - this.p2r_schedule = new Array(); - this.r2p_schedule = new Array(); - - if (RATE_LIMIT) - rate_limit = new BucketRateLimit(RATE_LIMIT * RATE_LIMIT_HISrelayY, RATE_LIMIT_HISrelayY); - else - rate_limit = new RateUnlimit(); - - setup_rtmfp_socket(s_c); - setup_relay_socket(); - } - - public function close():void - { - if (s_p.connected) { - s_p.close(); - } - if (s_r.connected) { - s_r.close(); - } - dispatchEvent(new Event(Event.CLOSE)); - } - - public function connect(peer:String, stream:String):void - { - s_p.connect(peer, stream); - } - - public function get connected():Boolean - { - return (s_p.connected && s_r.connected); - } - - public function listen(stream:String):void - { - s_p.listen(stream); - } - - private function setup_rtmfp_socket(s_c:CirrusSocket):void - { - s_p = new RTMFPSocket(s_c); - s_p.addEventListener(RTMFPSocketEvent.CONNECT_FAILED, function (e:RTMFPSocketEvent):void { - ui.puts("Peering failed."); - }); - s_p.addEventListener(RTMFPSocketEvent.CONNECT_SUCCESS, function (e:RTMFPSocketEvent):void { - ui.puts("Peering success."); - s_r.connect(relay_host, relay_port); - }); - s_p.addEventListener(RTMFPSocketEvent.PEER_CONNECTED, function (e:RTMFPSocketEvent):void { - ui.puts("Peer connected."); - }); - s_p.addEventListener(RTMFPSocketEvent.PEER_DISCONNECTED, function (e:RTMFPSocketEvent):void { - ui.puts("Peer disconnected."); - close(); - }); - s_p.addEventListener(RTMFPSocketEvent.PLAY_STARTED, function (e:RTMFPSocketEvent):void { - ui.puts("Play started."); - }); - s_p.addEventListener(RTMFPSocketEvent.PUBLISH_STARTED, function (e:RTMFPSocketEvent):void { - ui.puts("Publishing started."); - }); - s_p.addEventListener(ProgressEvent.SOCKET_DATA, proxy_to_relay); - } - - private function setup_relay_socket():void - { - s_r = new Socket(); - s_r.addEventListener(Event.CONNECT, function (e:Event):void { - ui.puts("Relay: connected to " + relay_host + ":" + relay_port + "."); - dispatchEvent(new Event(Event.CONNECT)); - }); - s_r.addEventListener(Event.CLOSE, function (e:Event):void { - ui.puts("Relay: closed connection."); - close(); - }); - s_r.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { - ui.puts("Relay: I/O error: " + e.text + "."); - close(); - }); - s_r.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { - ui.puts("Relay: security error: " + e.text + "."); - close(); - }); - s_r.addEventListener(ProgressEvent.SOCKET_DATA, relay_to_proxy); - } - - private function relay_to_proxy(e:ProgressEvent):void - { - r2p_schedule.push(e.bytesLoaded); - flush(); - } - - private function proxy_to_relay(e:ProgressEvent):void - { - p2r_schedule.push(e.bytesLoaded); - flush(); - } - - /* Send as much data as the rate limit currently allows. */ - private function flush():void - { - if (flush_id) - clearTimeout(flush_id); - flush_id = undefined; - - if (!(s_p.connected && s_r.connected)) - /* Can't do anything until both sockets are connected. */ - return; - - while (!rate_limit.is_limited() && (p2r_schedule.length > 0 || r2p_schedule.length > 0)) { - var numBytes:uint; - var bytes:ByteArray; - - if (p2r_schedule.length > 0) { - numBytes = p2r_schedule.shift(); - bytes = new ByteArray(); - s_p.readBytes(bytes, 0, numBytes); - ui.puts("ProxyPair: RTMFP: read " + bytes.length + " bytes."); - s_r.writeBytes(bytes); - rate_limit.update(numBytes); - } - if (r2p_schedule.length > 0) { - numBytes = r2p_schedule.shift(); - bytes = new ByteArray(); - s_r.readBytes(bytes, 0, numBytes); - ui.puts("ProxyPair: Relay: read " + bytes.length + " bytes."); - s_p.writeBytes(bytes); - rate_limit.update(numBytes); - } - } - - /* Call again when safe, if necessary. */ - if (p2r_schedule.length > 0 || r2p_schedule.length > 0) - flush_id = setTimeout(flush, rate_limit.when() * 1000); - } - } -} - -import flash.utils.getTimer; - -class RateLimit -{ - public function RateLimit() - { - } - - public function update(n:Number):Boolean - { - return true; - } - - public function when():Number - { - return 0.0; - } - - public function is_limited():Boolean - { - return false; - } -} - -class RateUnlimit extends RateLimit -{ - public function RateUnlimit() - { - } - - public override function update(n:Number):Boolean - { - return true; - } - - public override function when():Number - { - return 0.0; - } - - public override function is_limited():Boolean - { - return false; - } -} - -class BucketRateLimit extends RateLimit -{ - private var amount:Number; - private var capacity:Number; - private var time:Number; - private var last_update:uint; - - public function BucketRateLimit(capacity:Number, time:Number) - { - this.amount = 0.0; - /* capacity / time is the rate we are aiming for. */ - this.capacity = capacity; - this.time = time; - this.last_update = getTimer(); - } - - private function age():void - { - var now:uint; - var delta:Number; - - now = getTimer(); - delta = (now - last_update) / 1000.0; - last_update = now; - - amount -= delta * capacity / time; - if (amount < 0.0) - amount = 0.0; - } - - public override function update(n:Number):Boolean - { - age(); - amount += n; - - return amount <= capacity; - } - - public override function when():Number - { - age(); - return (amount - capacity) / (capacity / time); - } - - public override function is_limited():Boolean - { - age(); - return amount > capacity; - } -} \ No newline at end of file diff --git a/rtmfp/RTMFPSocket.as b/rtmfp/RTMFPSocket.as index bcbee67..4efe702 100644 --- a/rtmfp/RTMFPSocket.as +++ b/rtmfp/RTMFPSocket.as @@ -48,7 +48,7 @@ package rtmfp /* Tears down this RTMFPSocket, closing both its streams. To be used when destroying this object. */ - public function close():void + public function close():void { if (send_stream != null) { s_c.connection.removeEventListener(NetStatusEvent.NET_STATUS, on_stream_disconnection_event); diff --git a/rtmfpcat.as b/rtmfpcat.as deleted file mode 100644 index 1876ef9..0000000 --- a/rtmfpcat.as +++ /dev/null @@ -1,353 +0,0 @@ -package -{ - import flash.display.Sprite; - import flash.display.StageAlign; - import flash.display.StageScaleMode; - import flash.text.TextField; - import flash.text.TextFormat; - import flash.events.Event; - import flash.utils.setTimeout; - - import rtmfp.CirrusSocket; - import rtmfp.FacilitatorSocket; - import rtmfp.ProxyPair; - import rtmfp.events.CirrusSocketEvent; - import rtmfp.events.FacilitatorSocketEvent; - - public class rtmfpcat extends Sprite - { - /* Adobe's Cirrus server and Nate's key */ - private const DEFAULT_CIRRUS_ADDR:String = "rtmfp://p2p.rtmfp.net"; - private const DEFAULT_CIRRUS_KEY:String = RTMFP::CIRRUS_KEY; - - /* Nate's facilitator -- serves a crossdomain policy */ - private const DEFAULT_FACILITATOR_ADDR:Object = { - host: "128.12.179.80", - port: 9002 - }; - - private const DEFAULT_TOR_CLIENT_ADDR:Object = { - host: "127.0.0.1", - port: 3333 - }; - - /* David's relay (nickname 3VXRyxz67OeRoqHn) that also serves a - crossdomain policy. */ - private const DEFAULT_TOR_RELAY_ADDR:Object = { - host: "173.255.221.44", - port: 9001 - }; - - /* Poll facilitator every 10 sec */ - private const DEFAULT_FAC_POLL_INTERVAL:uint = 10000; - - // Socket to Cirrus server - private var s_c:CirrusSocket; - // Socket to facilitator. - private var s_f:FacilitatorSocket; - // Handle local-remote traffic - private var p_p:ProxyPair; - - private var proxy_pairs:Array; - - private var debug_mode:Boolean; - private var proxy_mode:Boolean; - - /* TextField for debug output. */ - private var output_text:TextField; - - /* Badge for display */ - private var badge:InternetFreedomBadge; - - private var fac_addr:Object; - private var relay_addr:Object; - - public function rtmfpcat() - { - proxy_mode = false; - debug_mode = false; - - // Absolute positioning. - stage.scaleMode = StageScaleMode.NO_SCALE; - stage.align = StageAlign.TOP_LEFT; - - // Wait until the query string parameters are loaded. - this.loaderInfo.addEventListener(Event.COMPLETE, loaderinfo_complete); - } - - public function puts(s:String):void - { - if (output_text != null) { - output_text.appendText(s + "\n"); - output_text.scrollV = output_text.maxScrollV; - } - } - - private function loaderinfo_complete(e:Event):void - { - var fac_spec:String; - var relay_spec:String; - - debug_mode = (this.loaderInfo.parameters["debug"] != null) - proxy_mode = (this.loaderInfo.parameters["proxy"] != null); - if (proxy_mode && !debug_mode) { - badge = new InternetFreedomBadge(this); - badge.display(); - } else { - output_text = new TextField(); - output_text.width = stage.stageWidth; - output_text.height = stage.stageHeight; - output_text.background = true; - output_text.backgroundColor = 0x001f0f; - output_text.textColor = 0x44cc44; - addChild(output_text); - } - - puts("Starting: parameters loaded."); - - /* TODO: use this to have multiple proxies going at once */ - proxy_pairs = new Array(); - - fac_spec = this.loaderInfo.parameters["facilitator"]; - if (fac_spec) { - puts("Facilitator spec: \"" + fac_spec + "\""); - fac_addr = parse_addr_spec(fac_spec); - if (!fac_addr) { - puts("Error: Facilitator spec must be in the form \"host:port\"."); - return; - } - } else { - fac_addr = DEFAULT_FACILITATOR_ADDR; - } - - relay_spec = this.loaderInfo.parameters["relay"]; - if (relay_spec) { - puts("Relay spec: \"" + relay_spec + "\""); - relay_addr = parse_addr_spec(relay_spec); - if (!relay_addr) { - puts("Error: Relay spec must be in the form \"host:port\"."); - return; - } - } else { - if (proxy_mode) { - relay_addr = DEFAULT_TOR_RELAY_ADDR; - } else { - relay_addr = DEFAULT_TOR_CLIENT_ADDR; - } - } - - main(); - } - - /* The main logic begins here, after start-up issues are taken care of. */ - private function main():void - { - establish_cirrus_connection(); - } - - private function establish_cirrus_connection():void - { - s_c = new CirrusSocket(); - s_c.addEventListener(CirrusSocketEvent.CONNECT_SUCCESS, function (e:CirrusSocketEvent):void { - puts("Cirrus: connected with id " + s_c.id + "."); - establish_facilitator_connection(); - }); - s_c.addEventListener(CirrusSocketEvent.CONNECT_FAILED, function (e:CirrusSocketEvent):void { - puts("Error: failed to connect to Cirrus."); - }); - s_c.addEventListener(CirrusSocketEvent.CONNECT_CLOSED, function (e:CirrusSocketEvent):void { - puts("Cirrus: closed connection."); - }); - - s_c.addEventListener(CirrusSocketEvent.HELLO_RECEIVED, function (e:CirrusSocketEvent):void { - puts("Cirrus: received hello from peer " + e.peer); - - /* don't bother if we already have a proxy going */ - if (p_p != null && p_p.connected) { - return; - } - - /* if we're in proxy mode, we should have already set - up a proxy pair */ - if (!proxy_mode) { - start_proxy_pair(); - s_c.send_hello(e.peer); - } else if (!debug_mode && badge != null) { - badge.total_proxy_pairs++; - badge.num_proxy_pairs++; - } - p_p.connect(e.peer, e.stream); - }); - - s_c.connect(DEFAULT_CIRRUS_ADDR, DEFAULT_CIRRUS_KEY); - } - - private function establish_facilitator_connection():void - { - s_f = new FacilitatorSocket(fac_addr.host, fac_addr.port); - s_f.addEventListener(FacilitatorSocketEvent.CONNECT_FAILED, function (e:Event):void { - puts("Facilitator: connect failed."); - setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); - }); - - if (proxy_mode) { - s_f.addEventListener(FacilitatorSocketEvent.REGISTRATION_RECEIVED, function (e:FacilitatorSocketEvent):void { - puts("Facilitator: got registration " + e.client); - start_proxy_pair(); - s_c.send_hello(e.client); - }); - s_f.addEventListener(FacilitatorSocketEvent.REGISTRATIONS_EMPTY, function (e:Event):void { - puts("Facilitator: no registrations available."); - setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); - }); - puts("Facilitator: getting registration."); - s_f.get_registration(); - } else { - s_f.addEventListener(FacilitatorSocketEvent.REGISTRATION_FAILED, function (e:Event):void { - puts("Facilitator: registration failed."); - setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); - }); - puts("Facilitator: posting registration."); - s_f.post_registration(s_c.id); - } - } - - private function start_proxy_pair():void - { - puts("Starting proxy pair on stream " + s_c.local_stream_name); - p_p = new ProxyPair(this, s_c, relay_addr.host, relay_addr.port); - p_p.addEventListener(Event.CONNECT, function (e:Event):void { - puts("ProxyPair: connected!"); - }); - p_p.addEventListener(Event.CLOSE, function (e:Event):void { - puts("ProxyPair: connection closed."); - p_p = null; - if (proxy_mode && !debug_mode && badge != null) { - badge.num_proxy_pairs--; - } - establish_facilitator_connection(); - }); - p_p.listen(s_c.local_stream_name); - } - - /* Parse an address in the form "host:port". Returns an Object with - keys "host" (String) and "port" (int). Returns null on error. */ - private function parse_addr_spec(spec:String):Object - { - var parts:Array; - var addr:Object; - - parts = spec.split(":", 2); - if (parts.length != 2 || !parseInt(parts[1])) - return null; - addr = {} - addr.host = parts[0]; - addr.port = parseInt(parts[1]); - - return addr; - } - } -} - -import flash.text.TextField; -import flash.text.TextFormat; - -class InternetFreedomBadge { - - private var ui:rtmfpcat; - - private var _num_proxy_pairs:uint; - private var _total_proxy_pairs:uint; - - [Embed(source="badge.png")] - private var BadgeImage:Class; - private var tot_client_count_tf:TextField; - private var tot_client_count_fmt:TextFormat; - private var cur_client_count_tf:TextField; - private var cur_client_count_fmt:TextFormat; - - public function InternetFreedomBadge(ui:rtmfpcat) - { - this.ui = ui; - _num_proxy_pairs = 0; - _total_proxy_pairs = 0; - - /* Setup client counter for badge. */ - tot_client_count_fmt = new TextFormat(); - tot_client_count_fmt.color = 0xFFFFFF; - tot_client_count_fmt.align = "center"; - tot_client_count_fmt.font = "courier-new"; - tot_client_count_fmt.bold = true; - tot_client_count_fmt.size = 10; - tot_client_count_tf = new TextField(); - tot_client_count_tf.width = 20; - tot_client_count_tf.height = 17; - tot_client_count_tf.background = false; - tot_client_count_tf.defaultTextFormat = tot_client_count_fmt; - tot_client_count_tf.x=47; - tot_client_count_tf.y=0; - - cur_client_count_fmt = new TextFormat(); - cur_client_count_fmt.color = 0xFFFFFF; - cur_client_count_fmt.align = "center"; - cur_client_count_fmt.font = "courier-new"; - cur_client_count_fmt.bold = true; - cur_client_count_fmt.size = 10; - cur_client_count_tf = new TextField(); - cur_client_count_tf.width = 20; - cur_client_count_tf.height = 17; - cur_client_count_tf.background = false; - cur_client_count_tf.defaultTextFormat = cur_client_count_fmt; - cur_client_count_tf.x=47; - cur_client_count_tf.y=6; - - /* Update the client counter on badge. */ - update_client_count(); - } - - public function display():void - { - ui.addChild(new BadgeImage()); - /* Tried unsuccessfully to add counter to badge. */ - /* For now, need two addChilds :( */ - ui.addChild(tot_client_count_tf); - ui.addChild(cur_client_count_tf); - } - - public function get num_proxy_pairs():uint - { - return _num_proxy_pairs; - } - - public function set num_proxy_pairs(amount:uint):void - { - _num_proxy_pairs = amount; - update_client_count(); - } - - public function get total_proxy_pairs():uint - { - return _total_proxy_pairs; - } - - public function set total_proxy_pairs(amount:uint):void - { - _total_proxy_pairs = amount; - /* note: doesn't update, so be sure to update this - before you update num_proxy_pairs! */ - } - - private function update_client_count():void - { - /* Update total client count. */ - if (String(total_proxy_pairs).length == 1) - tot_client_count_tf.text = "0" + String(total_proxy_pairs); - else - tot_client_count_tf.text = String(total_proxy_pairs); - - /* Update current client count. */ - cur_client_count_tf.text = ""; - for(var i:Number = 0; i < num_proxy_pairs; i++) - cur_client_count_tf.appendText("."); - } -} diff --git a/swfcat.as b/swfcat.as index 05da498..7729d2c 100644 --- a/swfcat.as +++ b/swfcat.as @@ -5,251 +5,268 @@ package import flash.display.StageScaleMode; import flash.text.TextField; import flash.text.TextFormat; - import flash.net.Socket; import flash.events.Event; - import flash.events.IOErrorEvent; - import flash.events.ProgressEvent; - import flash.events.SecurityErrorEvent; - import flash.utils.ByteArray; import flash.utils.setTimeout; + import rtmfp.CirrusSocket; + import rtmfp.FacilitatorSocket; + import rtmfp.events.CirrusSocketEvent; + import rtmfp.events.FacilitatorSocketEvent; + public class swfcat extends Sprite { + /* Adobe's Cirrus server and Nate's key */ + private const DEFAULT_CIRRUS_ADDR:String = "rtmfp://p2p.rtmfp.net"; + private const DEFAULT_CIRRUS_KEY:String = RTMFP::CIRRUS_KEY; + + /* Nate's facilitator -- serves a crossdomain policy */ + private const DEFAULT_FACILITATOR_ADDR:Object = { + host: "128.12.179.80", + port: 9002 + }; + + private const DEFAULT_TOR_CLIENT_ADDR:Object = { + host: "127.0.0.1", + port: 9002 + }; + /* David's relay (nickname 3VXRyxz67OeRoqHn) that also serves a crossdomain policy. */ - private const DEFAULT_RELAY_ADDR:Object = { + private const DEFAULT_TOR_RELAY_ADDR:Object = { host: "173.255.221.44", port: 9001 }; - private const DEFAULT_FACILITATOR_ADDR:Object = { - host: "173.255.221.44", - port: 9002 - }; - - private const MAX_NUM_PROXY_PAIRS:uint = 1; - - // Milliseconds. - private const FACILITATOR_POLL_INTERVAL:int = 10000; - - // Bytes per second. Set to undefined to disable limit. - public const RATE_LIMIT:Number = undefined; - // Seconds. - private const RATE_LIMIT_HISTORY:Number = 5.0; + + /* Poll facilitator every 10 sec */ + private const DEFAULT_FAC_POLL_INTERVAL:uint = 10000; + // Socket to Cirrus server + private var s_c:CirrusSocket; // Socket to facilitator. - private var s_f:Socket; + private var s_f:FacilitatorSocket; + // Handle local-remote traffic + private var p_p:ProxyPair; + + private var client_id:String; + private var proxy_pair_factory:Function; + + private var proxy_pairs:Array; + + private var debug_mode:Boolean; + private var proxy_mode:Boolean; /* TextField for debug output. */ private var output_text:TextField; + + /* Badge for display */ + private var badge:InternetFreedomBadge; private var fac_addr:Object; private var relay_addr:Object; - /* Number of proxy pairs currently connected (up to - MAX_NUM_PROXY_PAIRS). */ - private var num_proxy_pairs:int = 0; - /* Number of proxy pairs ever connected. */ - private var total_proxy_pairs:int = 0; - - public var rate_limit:RateLimit; - - /* Badge with a client counter */ - [Embed(source="badge.png")] - private var BadgeImage:Class; - private var tot_client_count_tf:TextField; - private var tot_client_count_fmt:TextFormat; - private var cur_client_count_tf:TextField; - private var cur_client_count_fmt:TextFormat; - - public function puts(s:String):void - { - output_text.appendText(s + "\n"); - output_text.scrollV = output_text.maxScrollV; - } - - public function update_client_count():void - { - /* Update total client count. */ - if (String(total_proxy_pairs).length == 1) - tot_client_count_tf.text = "0" + String(total_proxy_pairs); - else - tot_client_count_tf.text = String(total_proxy_pairs); - - /* Update current client count. */ - cur_client_count_tf.text = ""; - for(var i:Number=0; i<num_proxy_pairs; i++) - cur_client_count_tf.appendText(".");; - } - public function swfcat() { + proxy_mode = false; + debug_mode = false; + // Absolute positioning. stage.scaleMode = StageScaleMode.NO_SCALE; stage.align = StageAlign.TOP_LEFT; - - output_text = new TextField(); - output_text.width = stage.stageWidth; - output_text.height = stage.stageHeight; - output_text.background = true; - output_text.backgroundColor = 0x001f0f; - output_text.textColor = 0x44cc44; - - /* Setup client counter for badge. */ - tot_client_count_fmt = new TextFormat(); - tot_client_count_fmt.color = 0xFFFFFF; - tot_client_count_fmt.align = "center"; - tot_client_count_fmt.font = "courier-new"; - tot_client_count_fmt.bold = true; - tot_client_count_fmt.size = 10; - tot_client_count_tf = new TextField(); - tot_client_count_tf.width = 20; - tot_client_count_tf.height = 17; - tot_client_count_tf.background = false; - tot_client_count_tf.defaultTextFormat = tot_client_count_fmt; - tot_client_count_tf.x=47; - tot_client_count_tf.y=0; - - cur_client_count_fmt = new TextFormat(); - cur_client_count_fmt.color = 0xFFFFFF; - cur_client_count_fmt.align = "center"; - cur_client_count_fmt.font = "courier-new"; - cur_client_count_fmt.bold = true; - cur_client_count_fmt.size = 10; - cur_client_count_tf = new TextField(); - cur_client_count_tf.width = 20; - cur_client_count_tf.height = 17; - cur_client_count_tf.background = false; - cur_client_count_tf.defaultTextFormat = cur_client_count_fmt; - cur_client_count_tf.x=47; - cur_client_count_tf.y=6; - - - /* Update the client counter on badge. */ - update_client_count(); - - if (RATE_LIMIT) - rate_limit = new BucketRateLimit(RATE_LIMIT * RATE_LIMIT_HISTORY, RATE_LIMIT_HISTORY); - else - rate_limit = new RateUnlimit(); - - puts("Starting."); + // Wait until the query string parameters are loaded. this.loaderInfo.addEventListener(Event.COMPLETE, loaderinfo_complete); } + + public function puts(s:String):void + { + if (output_text != null) { + output_text.appendText(s + "\n"); + output_text.scrollV = output_text.maxScrollV; + } + } private function loaderinfo_complete(e:Event):void { var fac_spec:String; - - puts("Parameters loaded."); - - if (this.loaderInfo.parameters["debug"]) + var relay_spec:String; + + debug_mode = (this.loaderInfo.parameters["debug"] != null) + proxy_mode = (this.loaderInfo.parameters["proxy"] != null); + if (proxy_mode && !debug_mode) { + badge = new InternetFreedomBadge(this); + badge.display(); + } else { + output_text = new TextField(); + output_text.width = stage.stageWidth; + output_text.height = stage.stageHeight; + output_text.background = true; + output_text.backgroundColor = 0x001f0f; + output_text.textColor = 0x44cc44; addChild(output_text); - else { - addChild(new BadgeImage()); - /* Tried unsuccessfully to add counter to badge. */ - /* For now, need two addChilds :( */ - addChild(tot_client_count_tf); - addChild(cur_client_count_tf); } - - fac_addr = get_param_addr("facilitator", DEFAULT_FACILITATOR_ADDR); - if (!fac_addr) { - puts("Error: Facilitator spec must be in the form \"host:port\"."); - return; + + puts("Starting: parameters loaded."); + + /* TODO: use this to have multiple proxies going at once */ + proxy_pairs = new Array(); + + fac_spec = this.loaderInfo.parameters["facilitator"]; + if (fac_spec) { + puts("Facilitator spec: \"" + fac_spec + "\""); + fac_addr = parse_addr_spec(fac_spec); + if (!fac_addr) { + puts("Error: Facilitator spec must be in the form \"host:port\"."); + return; + } + } else { + fac_addr = DEFAULT_FACILITATOR_ADDR; } - relay_addr = get_param_addr("relay", DEFAULT_RELAY_ADDR); - if (!relay_addr) { - puts("Error: Relay spec must be in the form \"host:port\"."); - return; + + relay_spec = this.loaderInfo.parameters["relay"]; + if (relay_spec) { + puts("Relay spec: \"" + relay_spec + "\""); + relay_addr = parse_addr_spec(relay_spec); + if (!relay_addr) { + puts("Error: Relay spec must be in the form \"host:port\"."); + return; + } + } else { + if (proxy_mode) { + relay_addr = DEFAULT_TOR_RELAY_ADDR; + } else { + relay_addr = DEFAULT_TOR_CLIENT_ADDR; + } } main(); } - /* Get an address structure from the given movie parameter, or the given - default. Returns null on error. */ - private function get_param_addr(param:String, default_addr:Object):Object - { - var spec:String, addr:Object; - - spec = this.loaderInfo.parameters[param]; - if (spec) - return parse_addr_spec(spec); - else - return default_addr; - } - /* The main logic begins here, after start-up issues are taken care of. */ private function main():void { - if (num_proxy_pairs >= MAX_NUM_PROXY_PAIRS) { - setTimeout(main, FACILITATOR_POLL_INTERVAL); - return; + if (proxy_mode) { + establish_facilitator_connection(); + } else { + establish_cirrus_connection(); } + } - s_f = new Socket(); - - s_f.addEventListener(Event.CONNECT, fac_connected); - s_f.addEventListener(Event.CLOSE, function (e:Event):void { - puts("Facilitator: closed connection."); - setTimeout(main, FACILITATOR_POLL_INTERVAL); + private function establish_cirrus_connection():void + { + s_c = new CirrusSocket(); + s_c.addEventListener(CirrusSocketEvent.CONNECT_SUCCESS, function (e:CirrusSocketEvent):void { + puts("Cirrus: connected with id " + s_c.id + "."); + if (proxy_mode) { + start_proxy_pair(); + s_c.send_hello(client_id); + } else { + establish_facilitator_connection(); + } }); - s_f.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { - puts("Facilitator: I/O error: " + e.text + "."); + s_c.addEventListener(CirrusSocketEvent.CONNECT_FAILED, function (e:CirrusSocketEvent):void { + puts("Error: failed to connect to Cirrus."); }); - s_f.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { - puts("Facilitator: security error: " + e.text + "."); + s_c.addEventListener(CirrusSocketEvent.CONNECT_CLOSED, function (e:CirrusSocketEvent):void { + puts("Cirrus: closed connection."); }); - - puts("Facilitator: connecting to " + fac_addr.host + ":" + fac_addr.port + "."); - s_f.connect(fac_addr.host, fac_addr.port); + s_c.addEventListener(CirrusSocketEvent.HELLO_RECEIVED, function (e:CirrusSocketEvent):void { + puts("Cirrus: received hello from peer " + e.peer); + + /* don't bother if we already have a proxy going */ + if (p_p != null && p_p.connected) { + return; + } + + /* if we're in proxy mode, we should have already set + up a proxy pair */ + if (!proxy_mode) { + proxy_pair_factory = rtmfp_proxy_pair_factory; + start_proxy_pair(); + s_c.send_hello(e.peer); + } else if (!debug_mode && badge != null) { + badge.total_proxy_pairs++; + badge.num_proxy_pairs++; + } + + p_p.client = {peer: e.peer, stream: e.stream}; + }); + + s_c.connect(DEFAULT_CIRRUS_ADDR, DEFAULT_CIRRUS_KEY); } - private function fac_connected(e:Event):void + private function establish_facilitator_connection():void { - puts("Facilitator: connected."); - - s_f.addEventListener(ProgressEvent.SOCKET_DATA, fac_data); - - s_f.writeUTFBytes("GET / HTTP/1.0\r\n\r\n"); + s_f = new FacilitatorSocket(fac_addr.host, fac_addr.port); + s_f.addEventListener(FacilitatorSocketEvent.CONNECT_FAILED, function (e:Event):void { + puts("Facilitator: connect failed."); + setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); + }); + + if (proxy_mode) { + s_f.addEventListener(FacilitatorSocketEvent.REGISTRATION_RECEIVED, function (e:FacilitatorSocketEvent):void { + var client_addr:Object = parse_addr_spec(e.client); + if (client_addr == null) { + puts("Facilitator: got registration " + e.client); + proxy_pair_factory = rtmfp_proxy_pair_factory; + if (s_c == null || !s_c.connected) { + client_id = e.client; + establish_cirrus_connection(); + } else { + start_proxy_pair(); + s_c.send_hello(e.client); + } + } else { + proxy_pair_factory = tcp_proxy_pair_factory; + start_proxy_pair(); + p_p.client = client_addr; + } + }); + s_f.addEventListener(FacilitatorSocketEvent.REGISTRATIONS_EMPTY, function (e:Event):void { + puts("Facilitator: no registrations available."); + setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); + }); + puts("Facilitator: getting registration."); + s_f.get_registration(); + } else { + s_f.addEventListener(FacilitatorSocketEvent.REGISTRATION_FAILED, function (e:Event):void { + puts("Facilitator: registration failed."); + setTimeout(establish_facilitator_connection, DEFAULT_FAC_POLL_INTERVAL); + }); + puts("Facilitator: posting registration."); + s_f.post_registration(s_c.id); + } } - - private function fac_data(e:ProgressEvent):void + + private function start_proxy_pair():void { - var client_spec:String; - var client_addr:Object; - var proxy_pair:Object; - - client_spec = s_f.readMultiByte(e.bytesLoaded, "utf-8"); - puts("Facilitator: got \"" + client_spec + "\"."); - - client_addr = parse_addr_spec(client_spec); - if (!client_addr) { - puts("Error: Client spec must be in the form \"host:port\"."); - return; - } - - num_proxy_pairs++; - total_proxy_pairs++; - /* Update the client count on the badge. */ - update_client_count(); - - proxy_pair = new ProxyPair(this, client_addr, relay_addr); - proxy_pair.addEventListener(Event.COMPLETE, function(e:Event):void { - proxy_pair.log("Complete."); - - num_proxy_pairs--; - /* Update the client count on the badge. */ - update_client_count(); + p_p = proxy_pair_factory(); + p_p.addEventListener(Event.CONNECT, function (e:Event):void { + puts("ProxyPair: connected!"); }); - proxy_pair.connect(); - + p_p.addEventListener(Event.CLOSE, function (e:Event):void { + puts("ProxyPair: connection closed."); + p_p = null; + if (proxy_mode && !debug_mode && badge != null) { + badge.num_proxy_pairs--; + } + establish_facilitator_connection(); + }); + p_p.relay = relay_addr; + } + + private function rtmfp_proxy_pair_factory():ProxyPair + { + return new RTMFPProxyPair(this, s_c, s_c.local_stream_name); + } + + private function tcp_proxy_pair_factory():ProxyPair + { + return new TCPProxyPair(this); } /* Parse an address in the form "host:port". Returns an Object with keys "host" (String) and "port" (int). Returns null on error. */ - private static function parse_addr_spec(spec:String):Object + private function parse_addr_spec(spec:String):Object { var parts:Array; var addr:Object; @@ -266,267 +283,105 @@ package } } -import flash.display.Sprite; -import flash.events.Event; -import flash.events.EventDispatcher; -import flash.events.IOErrorEvent; -import flash.events.ProgressEvent; -import flash.events.SecurityErrorEvent; -import flash.net.Socket; -import flash.utils.ByteArray; -import flash.utils.clearTimeout; -import flash.utils.getTimer; -import flash.utils.setTimeout; - -class RateLimit -{ - public function RateLimit() - { - } - - public function update(n:Number):Boolean - { - return true; - } +import flash.text.TextField; +import flash.text.TextFormat; - public function when():Number - { - return 0.0; - } - - public function is_limited():Boolean - { - return false; - } -} - -class RateUnlimit extends RateLimit -{ - public function RateUnlimit() - { - } - - public override function update(n:Number):Boolean - { - return true; - } - - public override function when():Number - { - return 0.0; - } - - public override function is_limited():Boolean - { - return false; - } -} - -class BucketRateLimit extends RateLimit -{ - private var amount:Number; - private var capacity:Number; - private var time:Number; - private var last_update:uint; - - public function BucketRateLimit(capacity:Number, time:Number) - { - this.amount = 0.0; - /* capacity / time is the rate we are aiming for. */ - this.capacity = capacity; - this.time = time; - this.last_update = getTimer(); - } - - private function age():void - { - var now:uint; - var delta:Number; - - now = getTimer(); - delta = (now - last_update) / 1000.0; - last_update = now; - - amount -= delta * capacity / time; - if (amount < 0.0) - amount = 0.0; - } - - public override function update(n:Number):Boolean - { - age(); - amount += n; - - return amount <= capacity; - } - - public override function when():Number - { - age(); - return (amount - capacity) / (capacity / time); - } - - public override function is_limited():Boolean - { - age(); - return amount > capacity; - } -} - -/* An instance of a client-relay connection. */ -class ProxyPair extends EventDispatcher -{ - // Address ({host, port}) of client. - private var addr_c:Object; - // Address ({host, port}) of relay. - private var addr_r:Object; - - // Socket to client. - private var s_c:Socket; - // Socket to relay. - private var s_r:Socket; - - // Parent swfcat, for UI updates and rate meter. +class InternetFreedomBadge { + private var ui:swfcat; - - // Pending byte read counts for relay and client sockets. - private var r2c_schedule:Array; - private var c2r_schedule:Array; - // Callback id. - private var flush_id:uint; - - public function log(msg:String):void - { - ui.puts(id() + ": " + msg) - } - - // String describing this pair for output. - public function id():String - { - return "<" + this.addr_c.host + ":" + this.addr_c.port + - "," + this.addr_r.host + ":" + this.addr_r.port + ">"; - } - - public function ProxyPair(ui:swfcat, addr_c:Object, addr_r:Object) + + private var _num_proxy_pairs:uint; + private var _total_proxy_pairs:uint; + + [Embed(source="badge.png")] + private var BadgeImage:Class; + private var tot_client_count_tf:TextField; + private var tot_client_count_fmt:TextFormat; + private var cur_client_count_tf:TextField; + private var cur_client_count_fmt:TextFormat; + + public function InternetFreedomBadge(ui:swfcat) { this.ui = ui; - this.addr_c = addr_c; - this.addr_r = addr_r; - - this.c2r_schedule = []; - this.r2c_schedule = []; - } - - public function connect():void - { - s_r = new Socket(); - - s_r.addEventListener(Event.CONNECT, relay_connected); - s_r.addEventListener(Event.CLOSE, function (e:Event):void { - log("Relay: closed."); - if (s_c.connected) - s_c.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_r.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { - log("Relay: I/O error: " + e.text + "."); - if (s_c.connected) - s_c.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_r.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { - log("Relay: security error: " + e.text + "."); - if (s_c.connected) - s_c.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_r.addEventListener(ProgressEvent.SOCKET_DATA, relay_to_client); - - log("Relay: connecting to " + addr_r.host + ":" + addr_r.port + "."); - s_r.connect(addr_r.host, addr_r.port); + _num_proxy_pairs = 0; + _total_proxy_pairs = 0; + + /* Setup client counter for badge. */ + tot_client_count_fmt = new TextFormat(); + tot_client_count_fmt.color = 0xFFFFFF; + tot_client_count_fmt.align = "center"; + tot_client_count_fmt.font = "courier-new"; + tot_client_count_fmt.bold = true; + tot_client_count_fmt.size = 10; + tot_client_count_tf = new TextField(); + tot_client_count_tf.width = 20; + tot_client_count_tf.height = 17; + tot_client_count_tf.background = false; + tot_client_count_tf.defaultTextFormat = tot_client_count_fmt; + tot_client_count_tf.x=47; + tot_client_count_tf.y=0; + + cur_client_count_fmt = new TextFormat(); + cur_client_count_fmt.color = 0xFFFFFF; + cur_client_count_fmt.align = "center"; + cur_client_count_fmt.font = "courier-new"; + cur_client_count_fmt.bold = true; + cur_client_count_fmt.size = 10; + cur_client_count_tf = new TextField(); + cur_client_count_tf.width = 20; + cur_client_count_tf.height = 17; + cur_client_count_tf.background = false; + cur_client_count_tf.defaultTextFormat = cur_client_count_fmt; + cur_client_count_tf.x=47; + cur_client_count_tf.y=6; + + /* Update the client counter on badge. */ + update_client_count(); } - - private function relay_connected(e:Event):void + + public function display():void { - log("Relay: connected."); - - s_c = new Socket(); - - s_c.addEventListener(Event.CONNECT, client_connected); - s_c.addEventListener(Event.CLOSE, function (e:Event):void { - log("Client: closed."); - if (s_r.connected) - s_r.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_c.addEventListener(IOErrorEvent.IO_ERROR, function (e:IOErrorEvent):void { - log("Client: I/O error: " + e.text + "."); - if (s_r.connected) - s_r.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_c.addEventListener(SecurityErrorEvent.SECURITY_ERROR, function (e:SecurityErrorEvent):void { - log("Client: security error: " + e.text + "."); - if (s_r.connected) - s_r.close(); - dispatchEvent(new Event(Event.COMPLETE)); - }); - s_c.addEventListener(ProgressEvent.SOCKET_DATA, client_to_relay); - - log("Client: connecting to " + addr_c.host + ":" + addr_c.port + "."); - s_c.connect(addr_c.host, addr_c.port); + ui.addChild(new BadgeImage()); + /* Tried unsuccessfully to add counter to badge. */ + /* For now, need two addChilds :( */ + ui.addChild(tot_client_count_tf); + ui.addChild(cur_client_count_tf); } - - private function relay_to_client(e:ProgressEvent):void + + public function get num_proxy_pairs():uint { - r2c_schedule.push(e.bytesLoaded); - flush(); + return _num_proxy_pairs; } - - private function client_to_relay(e:ProgressEvent):void + + public function set num_proxy_pairs(amount:uint):void { - c2r_schedule.push(e.bytesLoaded); - flush(); + _num_proxy_pairs = amount; + update_client_count(); } - - private function client_connected(e:Event):void + + public function get total_proxy_pairs():uint { - log("Client: connected."); + return _total_proxy_pairs; } - - private function transfer_chunk(s_from:Socket, s_to:Socket, n:uint, - label:String):void + + public function set total_proxy_pairs(amount:uint):void { - var bytes:ByteArray; - - bytes = new ByteArray(); - s_from.readBytes(bytes, 0, n); - s_to.writeBytes(bytes); - ui.rate_limit.update(n); - log(label + ": read " + bytes.length + "."); + _total_proxy_pairs = amount; + /* note: doesn't update, so be sure to update this + before you update num_proxy_pairs! */ } - - /* Send as much data as the rate limit currently allows. */ - private function flush():void + + private function update_client_count():void { - if (flush_id) - clearTimeout(flush_id); - flush_id = undefined; - - if (!(s_r.connected && s_c.connected)) - /* Can't do anything until both sockets are connected. */ - return; - - while (!ui.rate_limit.is_limited() && - (r2c_schedule.length > 0 || c2r_schedule.length > 0)) { - if (r2c_schedule.length > 0) - transfer_chunk(s_r, s_c, r2c_schedule.shift(), "Relay"); - if (c2r_schedule.length > 0) - transfer_chunk(s_c, s_r, c2r_schedule.shift(), "Client"); - } - - /* Call again when safe, if necessary. */ - if (r2c_schedule.length > 0 || c2r_schedule.length > 0) - flush_id = setTimeout(flush, ui.rate_limit.when() * 1000); + /* Update total client count. */ + if (String(total_proxy_pairs).length == 1) + tot_client_count_tf.text = "0" + String(total_proxy_pairs); + else + tot_client_count_tf.text = String(total_proxy_pairs); + + /* Update current client count. */ + cur_client_count_tf.text = ""; + for(var i:Number = 0; i < num_proxy_pairs; i++) + cur_client_count_tf.appendText("."); } }

1 0

r24814: {website} 0.2.2.28-beta is released, make the tarballs available while (website/trunk/include)
by Andrew Lewman 09 Jun '11

09 Jun '11

Author: phobos Date: 2011-06-09 13:01:28 +0000 (Thu, 09 Jun 2011) New Revision: 24814 Modified: website/trunk/include/versions.wmi Log: 0.2.2.28-beta is released, make the tarballs available while we fight over packaging issues. Modified: website/trunk/include/versions.wmi =================================================================== --- website/trunk/include/versions.wmi 2011-06-08 11:39:53 UTC (rev 24813) +++ website/trunk/include/versions.wmi 2011-06-09 13:01:28 UTC (rev 24814) @@ -1,5 +1,5 @@ <define-tag version-stable whitespace=delete>0.2.1.30</define-tag> -<define-tag version-alpha whitespace=delete>0.2.2.27-beta</define-tag> +<define-tag version-alpha whitespace=delete>0.2.2.28-beta</define-tag> <define-tag version-win32-stable whitespace=delete>0.2.1.30</define-tag> <define-tag version-win32-alpha whitespace=delete>0.2.2.27-beta</define-tag>

1 0

[torbrowser/master] update OS X launch script so that it will launch in directories with spaces. closes bug #2197.
by erinn＠torproject.org 09 Jun '11

09 Jun '11

commit 15f51967a0e1f5fc0e0ba9fdff2ef762c9d68a34 Author: Erinn Clark <erinn(a)torproject.org> Date: Thu Jun 9 03:57:55 2011 -0300 update OS X launch script so that it will launch in directories with spaces. closes bug #2197. --- src/RelativeLink/RelativeLinkOSX.sh | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/RelativeLink/RelativeLinkOSX.sh b/src/RelativeLink/RelativeLinkOSX.sh index f8965e8..5b59474 100755 --- a/src/RelativeLink/RelativeLinkOSX.sh +++ b/src/RelativeLink/RelativeLinkOSX.sh @@ -30,4 +30,4 @@ fi # not in debug mode, run proceed normally printf "\nLaunching Tor Browser Bundle for Mac OS X in ${HOME}\n" cd "${HOME}" -open $HOME/Contents/MacOS/Vidalia.app +open "$HOME/Contents/MacOS/Vidalia.app"

1 0

[torbrowser/maint-2.2] update tbb osx alpha to 2.2.28, bump tor to 0.2.2.28-beta, libevent to 2.0.12-stable, and extension versions as well
by erinn＠torproject.org 09 Jun '11

09 Jun '11

commit a2d694a6924140f73cef1549588c9b2b92e5dc63 Author: Erinn Clark <erinn(a)torproject.org> Date: Thu Jun 9 04:00:18 2011 -0300 update tbb osx alpha to 2.2.28, bump tor to 0.2.2.28-beta, libevent to 2.0.12-stable, and extension versions as well --- README.OSX-2.2 | 6 +++--- build-scripts/osx.mk | 2 +- build-scripts/versions.mk | 8 +++++--- changelog.osx-2.2 | 7 +++++++ 4 files changed, 16 insertions(+), 7 deletions(-) diff --git a/README.OSX-2.2 b/README.OSX-2.2 index d6a1914..b8d2fc5 100644 --- a/README.OSX-2.2 +++ b/README.OSX-2.2 @@ -5,12 +5,12 @@ Included applications --------------------- Vidalia 0.2.12 (with Qt 4.6.2) -Tor 0.2.2.27-alpha (with libevent-2.0.10-stable, zlib-1.2.5 and openssl-1.0.0d) +Tor 0.2.2.28-beta (with libevent-2.0.12-stable, zlib-1.2.5 and openssl-1.0.0d) Firefox (Tumucumaque) 4.0.1 \_ Torbutton 1.3.3-alpha - |_ NoScript 2.1.0.5 + |_ NoScript 2.1.1 |_ HTTPS-Everywhere 0.9.9.development.5 - |_ BetterPrivacy 1.50 + |_ BetterPrivacy 1.51 Usage ----- diff --git a/build-scripts/osx.mk b/build-scripts/osx.mk index 8bee9e1..12d790c 100644 --- a/build-scripts/osx.mk +++ b/build-scripts/osx.mk @@ -144,7 +144,7 @@ NAME=TorBrowser DISTDIR=tbbosx-alpha-dist ## Version and name of the compressed bundle (also used for source) -VERSION=2.2.27-1-alpha +VERSION=$(RELEASE_VER)-1-alpha DEFAULT_COMPRESSED_BASENAME=TorBrowser-$(VERSION)-osx-$(ARCH_TYPE)- IM_COMPRESSED_BASENAME=TorBrowser-IM-$(VERSION)- DEFAULT_COMPRESSED_NAME=$(DEFAULT_COMPRESSED_BASENAME) diff --git a/build-scripts/versions.mk b/build-scripts/versions.mk index 554d746..777afe1 100644 --- a/build-scripts/versions.mk +++ b/build-scripts/versions.mk @@ -1,16 +1,18 @@ #!/usr/bin/make +RELEASE_VER=2.2.28 + HTTPSEVERY_VER=0.9.9.development.5 FIREFOX_VER=4.0.1 -LIBEVENT_VER=2.0.10-stable +LIBEVENT_VER=2.0.12-stable LIBPNG_VER=1.4.3 -NOSCRIPT_VER=2.1.0.5 +NOSCRIPT_VER=2.1.1 OPENSSL_VER=1.0.0d OTR_VER=3.2.0 PIDGIN_VER=2.6.4 POLIPO_VER=1.0.4.1 QT_VER=4.6.2 -TOR_VER=0.2.2.27-beta +TOR_VER=0.2.2.28-beta TORBUTTON_VER=1.3.3-alpha VIDALIA_VER=0.2.12 ZLIB_VER=1.2.5 diff --git a/changelog.osx-2.2 b/changelog.osx-2.2 index d30069f..6dffa27 100644 --- a/changelog.osx-2.2 +++ b/changelog.osx-2.2 @@ -1,3 +1,10 @@ +Tor Browser Bundle (2.2.28-1) alpha; suite=osx + + * Update Tor to 0.2.2.28-beta + * Update Libevent to 2.0.12-stable + * Update NoScript to 2.1.1 + * Update BetterPrivacy to 1.51 + Tor Browser Bundle (2.2.27-1) alpha; suite=osx * Update Tor to 0.2.2.27-beta

1 0

[torbrowser/maint-2.2] update OS X launch script so that it will launch in directories with spaces. closes bug #2197.
by erinn＠torproject.org 09 Jun '11

09 Jun '11

commit 6d320ac7f7f1f2b875ae52741142e214d55fa3bf Author: Erinn Clark <erinn(a)torproject.org> Date: Thu Jun 9 03:57:55 2011 -0300 update OS X launch script so that it will launch in directories with spaces. closes bug #2197. --- src/RelativeLink/RelativeLinkOSX.sh | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/RelativeLink/RelativeLinkOSX.sh b/src/RelativeLink/RelativeLinkOSX.sh index f60c513..f448cf1 100755 --- a/src/RelativeLink/RelativeLinkOSX.sh +++ b/src/RelativeLink/RelativeLinkOSX.sh @@ -35,4 +35,4 @@ fi # not in debug mode, run proceed normally printf "\nLaunching Tor Browser Bundle for Linux in ${HOME}\n" cd "${HOME}" -open $HOME/Contents/MacOS/Vidalia.app +open "$HOME/Contents/MacOS/Vidalia.app"

1 0

[obfsproxy/master] Fixed SOCKS function return values.
by nickm＠torproject.org 09 Jun '11

09 Jun '11

commit 457e03d5b27ebbd4fba1f804b6f0e6661d5b164e Author: George Kadianakis <desnacked(a)gmail.com> Date: Tue Jun 7 05:03:12 2011 +0200 Fixed SOCKS function return values. SOCKS functions reporting to network.c were not consistent on returning enum req_status values. This commit makes all callees of handle_socks() return req_status. It also renames req_status itself to socks_ret! --- src/network.c | 12 ++++---- src/socks.c | 74 +++++++++++++++++++++++++++++--------------------------- src/socks.h | 13 ++++----- 3 files changed, 50 insertions(+), 49 deletions(-) diff --git a/src/network.c b/src/network.c index f1c4584..07ef767 100644 --- a/src/network.c +++ b/src/network.c @@ -230,7 +230,7 @@ socks_read_cb(struct bufferevent *bev, void *arg) { conn_t *conn = arg; //struct bufferevent *other; - enum req_status r; + enum socks_ret socks_ret; assert(bev == conn->input); /* socks must be on the initial bufferevent */ //dbg(("Got data on the socks side (%d) \n", conn->socks_state->state)); @@ -261,15 +261,15 @@ socks_read_cb(struct bufferevent *bev, void *arg) return; } - r = handle_socks(bufferevent_get_input(bev), + socks_ret = handle_socks(bufferevent_get_input(bev), bufferevent_get_output(bev), conn->socks_state); - } while (r == SOCKS_GOOD); + } while (socks_ret == SOCKS_GOOD); - if (r == SOCKS_INCOMPLETE) + if (socks_ret == SOCKS_INCOMPLETE) return; /* need to read more data. */ - else if (r == SOCKS_BROKEN) + else if (socks_ret == SOCKS_BROKEN) conn_free(conn); /* XXXX maybe send socks reply */ - else if (r == SOCKS_CMD_NOT_CONNECT) { + else if (socks_ret == SOCKS_CMD_NOT_CONNECT) { bufferevent_enable(bev, EV_WRITE); bufferevent_disable(bev, EV_READ); socks5_send_reply(bufferevent_get_output(bev), conn->socks_state, diff --git a/src/socks.c b/src/socks.c index 8782a63..6266503 100644 --- a/src/socks.c +++ b/src/socks.c @@ -39,7 +39,7 @@ */ -static int socks5_do_negotiation(struct evbuffer *dest, +static enum socks_ret socks5_do_negotiation(struct evbuffer *dest, unsigned int neg_was_success); typedef unsigned char uchar; @@ -118,7 +118,7 @@ socks_errno_to_reply(socks_state_t *state, int error) Client Request (Client -> Server) */ -enum req_status +enum socks_ret socks5_handle_request(struct evbuffer *source, struct parsereq *parsereq) { /** XXX: max FQDN size is 255. */ @@ -284,7 +284,7 @@ socks5_send_reply(struct evbuffer *reply_dest, socks_state_t *state, nmethods | methods[nmethods] | b 1-255b */ -int +enum socks_ret socks5_handle_negotiation(struct evbuffer *source, struct evbuffer *dest, socks_state_t *state) { @@ -295,7 +295,7 @@ socks5_handle_negotiation(struct evbuffer *source, evbuffer_copyout(source, &nmethods, 1); if (evbuffer_get_length(source) < nmethods + 1) { - return 0; /* need more data */ + return SOCKS_INCOMPLETE; /* need more data */ } evbuffer_drain(source, 1); @@ -305,7 +305,7 @@ socks5_handle_negotiation(struct evbuffer *source, p = malloc(nmethods); if (!p) { printf("malloc failed!\n"); - return -1; + return SOCKS_BROKEN; } if (evbuffer_remove(source, p, nmethods) < 0) assert(0); @@ -333,7 +333,7 @@ socks5_handle_negotiation(struct evbuffer *source, | version | method selected | 1b 1b */ -static int +static enum socks_ret socks5_do_negotiation(struct evbuffer *dest, unsigned int neg_was_success) { uchar reply[2]; @@ -342,13 +342,13 @@ socks5_do_negotiation(struct evbuffer *dest, unsigned int neg_was_success) reply[1] = neg_was_success ? SOCKS5_METHOD_NOAUTH : SOCKS5_METHOD_FAIL; if (evbuffer_add(dest, reply, 2) == -1 || !neg_was_success) - return -1; + return SOCKS_BROKEN; else - return 1; + return SOCKS_GOOD; } /* rename to socks4_handle_request or something. */ -int +enum socks_ret socks4_read_request(struct evbuffer *source, socks_state_t *state) { /* Format is: @@ -365,11 +365,11 @@ socks4_read_request(struct evbuffer *source, socks_state_t *state) struct evbuffer_ptr end_of_user, end_of_hostname; size_t user_len, hostname_len=0; if (evbuffer_get_length(source) < 7) - return 0; /* more bytes needed */ + return SOCKS_INCOMPLETE; /* more bytes needed */ evbuffer_copyout(source, (char*)header, 7); if (header[0] != 1) { printf("socks: Only CONNECT supported.\n"); - return -1; + return SOCKS_BROKEN; } memcpy(&portnum, header+1, 2); memcpy(&ipaddr, header+3, 4); @@ -381,25 +381,25 @@ socks4_read_request(struct evbuffer *source, socks_state_t *state) end_of_user = evbuffer_search(source, "\0", 1, &end_of_user); if (end_of_user.pos == -1) { if (evbuffer_get_length(source) > SOCKS4_MAX_LENGTH) - return -1; - return 0; + return SOCKS_BROKEN; + return SOCKS_INCOMPLETE; } user_len = end_of_user.pos - 7; if (is_v4a) { if (end_of_user.pos == evbuffer_get_length(source)-1) - return 0; /*more data needed */ + return SOCKS_INCOMPLETE; /*more data needed */ end_of_hostname = end_of_user; evbuffer_ptr_set(source, &end_of_hostname, 1, EVBUFFER_PTR_ADD); end_of_hostname = evbuffer_search(source, "\0", 1, &end_of_hostname); if (end_of_hostname.pos == -1) { if (evbuffer_get_length(source) > SOCKS4_MAX_LENGTH) - return -1; - return 0; + return SOCKS_BROKEN; + return SOCKS_INCOMPLETE; } hostname_len = end_of_hostname.pos - end_of_user.pos - 1; if (hostname_len >= sizeof(state->parsereq.addr)) { printf("socks4a: Hostname too long\n"); - return -1; + return SOCKS_BROKEN; } } @@ -415,10 +415,10 @@ socks4_read_request(struct evbuffer *source, socks_state_t *state) struct in_addr in; in.s_addr = htonl(ipaddr); if (evutil_inet_ntop(AF_INET, &in, state->parsereq.addr, sizeof(state->parsereq.addr)) == NULL) - return -1; + return SOCKS_BROKEN; } - return 1; + return SOCKS_GOOD; } int @@ -451,17 +451,18 @@ socks4_send_reply(struct evbuffer *dest, socks_state_t *state, int status) Returns 1 on done, -1 on unrecoverable error, 0 on "need more bytes */ -int +enum socks_ret handle_socks(struct evbuffer *source, struct evbuffer *dest, socks_state_t *socks_state) { - enum req_status r; + enum socks_ret r; + if (socks_state->broken) - return -1; + return SOCKS_BROKEN; if (evbuffer_get_length(source) < MIN_SOCKS_PACKET) { printf("socks: Packet is too small.\n"); - return 0; + return SOCKS_INCOMPLETE; } /* ST_SENT_REPLY connections shouldn't be here! */ @@ -483,48 +484,49 @@ handle_socks(struct evbuffer *source, struct evbuffer *dest, case SOCKS4_VERSION: if (socks_state->state == ST_WAITING) { r = socks4_read_request(source, socks_state); - if (r == -1) + if (r == SOCKS_BROKEN) goto broken; - else if (r == 0) - return 0; + else if (r == SOCKS_INCOMPLETE) + return SOCKS_INCOMPLETE; socks_state->state = ST_HAVE_ADDR; - return 1; + return SOCKS_GOOD; } break; case SOCKS5_VERSION: if (socks_state->state == ST_WAITING) { /* We don't know this connection. We have to do method negotiation. */ r = socks5_handle_negotiation(source,dest,socks_state); - if (r == -1) + if (r == SOCKS_BROKEN) goto broken; - else if (r == 0) - return 0; - else if (r == 1) + else if (r == SOCKS_INCOMPLETE) + return SOCKS_INCOMPLETE; + else if (r == SOCKS_GOOD) socks_state->state = ST_NEGOTIATION_DONE; } if (socks_state->state == ST_NEGOTIATION_DONE) { /* We know this connection. Let's see what it wants. */ r = socks5_handle_request(source,&socks_state->parsereq); - if (r == SOCKS_GOOD) + if (r == SOCKS_GOOD) { socks_state->state = ST_HAVE_ADDR; - else if (r == SOCKS_INCOMPLETE) + return SOCKS_GOOD; + } else if (r == SOCKS_INCOMPLETE) return SOCKS_INCOMPLETE; else if (r == SOCKS_CMD_NOT_CONNECT) { socks_state->broken = 1; return SOCKS_CMD_NOT_CONNECT; } else if (r == SOCKS_BROKEN) goto broken; - return r; + assert(0); } break; default: goto broken; } - return 0; + return SOCKS_INCOMPLETE; broken: socks_state->broken = 1; - return -1; + return SOCKS_BROKEN; } enum socks_status_t diff --git a/src/socks.h b/src/socks.h index 7b35cb5..f686253 100644 --- a/src/socks.h +++ b/src/socks.h @@ -17,15 +17,15 @@ enum socks_status_t { ST_SENT_REPLY }; -enum req_status { +enum socks_ret { SOCKS_GOOD=0, SOCKS_INCOMPLETE, SOCKS_CMD_NOT_CONNECT, SOCKS_BROKEN }; -int handle_socks(struct evbuffer *source, - struct evbuffer *dest, socks_state_t *socks_state); +enum socks_ret handle_socks(struct evbuffer *source, + struct evbuffer *dest, socks_state_t *socks_state); socks_state_t *socks_state_new(void); void socks_state_free(socks_state_t *s); @@ -96,14 +96,13 @@ struct socks_state_t { struct parsereq parsereq; }; -int socks5_handle_negotiation(struct evbuffer *source, +enum socks_ret socks5_handle_negotiation(struct evbuffer *source, struct evbuffer *dest, socks_state_t *state); int socks5_send_reply(struct evbuffer *reply_dest, socks_state_t *state, int status); -enum req_status socks5_handle_request(struct evbuffer *source, struct parsereq *parsereq); +enum socks_ret socks5_handle_request(struct evbuffer *source, struct parsereq *parsereq); - -int socks4_read_request(struct evbuffer *source, socks_state_t *state); +enum socks_ret socks4_read_request(struct evbuffer *source, socks_state_t *state); int socks4_send_reply(struct evbuffer *dest, socks_state_t *state, int status); #endif

1 0

[obfsproxy/master] Revive unit tests.
by nickm＠torproject.org 09 Jun '11

09 Jun '11

commit 8b198c960b9791623dff0a52deeb37ba88d92671 Author: George Kadianakis <desnacked(a)gmail.com> Date: Tue Jun 7 04:56:32 2011 +0200 Revive unit tests. --- src/test/unittest_socks.c | 22 +++++++++++----------- 1 files changed, 11 insertions(+), 11 deletions(-) diff --git a/src/test/unittest_socks.c b/src/test/unittest_socks.c index d7706ee..d82964f 100644 --- a/src/test/unittest_socks.c +++ b/src/test/unittest_socks.c @@ -40,7 +40,7 @@ test_socks_socks5_send_negotiation(void *data) evbuffer_add(source, req1, 2); - tt_int_op(1, ==, socks5_handle_negotiation(source,dest,state)); + tt_int_op(SOCKS_GOOD, ==, socks5_handle_negotiation(source,dest,state)); tt_int_op(0, ==, evbuffer_get_length(source)); uchar rep1[2]; @@ -57,7 +57,7 @@ test_socks_socks5_send_negotiation(void *data) evbuffer_add(source, req2, 10); - tt_int_op(1, ==, socks5_handle_negotiation(source,dest,state)); + tt_int_op(SOCKS_GOOD, ==, socks5_handle_negotiation(source,dest,state)); tt_int_op(0, ==, evbuffer_get_length(source)); uchar rep2[2]; @@ -73,7 +73,7 @@ test_socks_socks5_send_negotiation(void *data) evbuffer_add(source, req3, 100); - tt_int_op(-1, ==, socks5_handle_negotiation(source,dest,state)); + tt_int_op(SOCKS_BROKEN, ==, socks5_handle_negotiation(source,dest,state)); tt_int_op(0, ==, evbuffer_get_length(source)); /* all data removed */ uchar rep3[2]; @@ -92,7 +92,7 @@ test_socks_socks5_send_negotiation(void *data) evbuffer_add(source, req4, 4); - tt_int_op(0, ==, socks5_handle_negotiation(source,dest,state)); + tt_int_op(SOCKS_INCOMPLETE, ==, socks5_handle_negotiation(source,dest,state)); tt_int_op(4, ==, evbuffer_get_length(source)); /* no bytes removed */ evbuffer_drain(source, 4); @@ -105,7 +105,7 @@ test_socks_socks5_send_negotiation(void *data) evbuffer_add(source, req5, 5); - tt_int_op(1, ==, socks5_handle_negotiation(source,dest,state)); + tt_int_op(SOCKS_GOOD, ==, socks5_handle_negotiation(source,dest,state)); tt_int_op(1, ==, evbuffer_get_length(source)); /* 4 bytes removed */ evbuffer_drain(source, 1); @@ -431,7 +431,7 @@ test_socks_socks4_request(void *data) evbuffer_add(source,req1,8); - tt_int_op(1, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_GOOD, ==, socks4_read_request(source,state)); tt_str_op(state->parsereq.addr, ==, "127.0.0.1"); tt_int_op(state->parsereq.port, ==, 80); @@ -449,7 +449,7 @@ test_socks_socks4_request(void *data) evbuffer_add(source,req2,9); - tt_int_op(0, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_INCOMPLETE, ==, socks4_read_request(source,state)); /* emptying source buffer before next test */ buffer_len = evbuffer_get_length(source); @@ -465,7 +465,7 @@ test_socks_socks4_request(void *data) evbuffer_add(source,req3,16); - tt_int_op(1, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_GOOD, ==, socks4_read_request(source,state)); tt_str_op(state->parsereq.addr, ==, "127.0.0.1"); tt_int_op(state->parsereq.port, ==, 80); @@ -485,7 +485,7 @@ test_socks_socks4_request(void *data) evbuffer_add(source,req4,33); - tt_int_op(1, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_GOOD, ==, socks4_read_request(source,state)); tt_str_op(state->parsereq.addr, ==, "www.test.example"); tt_int_op(state->parsereq.port, ==, 80); @@ -505,7 +505,7 @@ test_socks_socks4_request(void *data) /* Don't send it all. */ evbuffer_add(source,req5,28); - tt_int_op(0, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_INCOMPLETE, ==, socks4_read_request(source,state)); /* emptying source buffer before next test */ buffer_len = evbuffer_get_length(source); @@ -525,7 +525,7 @@ test_socks_socks4_request(void *data) evbuffer_add(source,req6,16+HUGE+1); - tt_int_op(-1, ==, socks4_read_request(source,state)); + tt_int_op(SOCKS_BROKEN, ==, socks4_read_request(source,state)); #undef HUGE end:

1 0

[obfsproxy/master] Merge remote-tracking branch 'asn/bug3359'
by nickm＠torproject.org 09 Jun '11

09 Jun '11

commit f949faca8c0664400a50c30d2433408514938e4f Merge: b1e2ee5 8b198c9 Author: Nick Mathewson <nickm(a)torproject.org> Date: Thu Jun 9 02:31:45 2011 -0400 Merge remote-tracking branch 'asn/bug3359' src/network.c | 12 ++++---- src/socks.c | 74 +++++++++++++++++++++++---------------------- src/socks.h | 13 ++++---- src/test/unittest_socks.c | 22 +++++++------- 4 files changed, 61 insertions(+), 60 deletions(-)

1 0