commit 6307de6a85132ea3859ab0dca7e95db9b04d0af0 Author: Nate Hardison <nate@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);