diff options
Diffstat (limited to 'vendors/uploadify/com/adobe/net/proxies')
| -rw-r--r-- | vendors/uploadify/com/adobe/net/proxies/RFC2817Socket.as | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/vendors/uploadify/com/adobe/net/proxies/RFC2817Socket.as b/vendors/uploadify/com/adobe/net/proxies/RFC2817Socket.as new file mode 100644 index 000000000..e73e9e7df --- /dev/null +++ b/vendors/uploadify/com/adobe/net/proxies/RFC2817Socket.as @@ -0,0 +1,198 @@ +/*
+ Copyright (c) 2008, Adobe Systems Incorporated
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the name of Adobe Systems Incorporated nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+package com.adobe.net.proxies
+{
+ import flash.events.Event;
+ import flash.events.IOErrorEvent;
+ import flash.events.ProgressEvent;
+ import flash.net.Socket;
+
+ /**
+ * This class allows TCP socket connections through HTTP proxies in accordance with
+ * RFC 2817:
+ *
+ * ftp://ftp.rfc-editor.org/in-notes/rfc2817.txt
+ *
+ * It can also be used to make direct connections to a destination, as well. If you
+ * pass the host and port into the constructor, no proxy will be used. You can also
+ * call connect, passing in the host and the port, and if you didn't set the proxy
+ * info, a direct connection will be made. A proxy is only used after you have called
+ * the setProxyInfo function.
+ *
+ * The connection to and negotiation with the proxy is completely hidden. All the
+ * same events are thrown whether you are using a proxy or not, and the data you
+ * receive from the target server will look exact as it would if you were connected
+ * to it directly rather than through a proxy.
+ *
+ * @author Christian Cantrell
+ *
+ **/
+ public class RFC2817Socket
+ extends Socket
+ {
+ private var proxyHost:String = null;
+ private var host:String = null;
+ private var proxyPort:int = 0;
+ private var port:int = 0;
+ private var deferredEventHandlers:Object = new Object();
+ private var buffer:String = new String();
+
+ /**
+ * Construct a new RFC2817Socket object. If you pass in the host and the port,
+ * no proxy will be used. If you want to use a proxy, instantiate with no
+ * arguments, call setProxyInfo, then call connect.
+ **/
+ public function RFC2817Socket(host:String = null, port:int = 0)
+ {
+ super(host, port);
+ }
+
+ /**
+ * Set the proxy host and port number. Your connection will only proxied if
+ * this function has been called.
+ **/
+ public function setProxyInfo(host:String, port:int):void
+ {
+ this.proxyHost = host;
+ this.proxyPort = port;
+
+ var deferredSocketDataHandler:Object = this.deferredEventHandlers[ProgressEvent.SOCKET_DATA];
+ var deferredConnectHandler:Object = this.deferredEventHandlers[Event.CONNECT];
+
+ if (deferredSocketDataHandler != null)
+ {
+ super.removeEventListener(ProgressEvent.SOCKET_DATA, deferredSocketDataHandler.listener, deferredSocketDataHandler.useCapture);
+ }
+
+ if (deferredConnectHandler != null)
+ {
+ super.removeEventListener(Event.CONNECT, deferredConnectHandler.listener, deferredConnectHandler.useCapture);
+ }
+ }
+
+ /**
+ * Connect to the specified host over the specified port. If you want your
+ * connection proxied, call the setProxyInfo function first.
+ **/
+ public override function connect(host:String, port:int):void
+ {
+ if (this.proxyHost == null)
+ {
+ this.redirectConnectEvent();
+ this.redirectSocketDataEvent();
+ super.connect(host, port);
+ }
+ else
+ {
+ this.host = host;
+ this.port = port;
+ super.addEventListener(Event.CONNECT, this.onConnect);
+ super.addEventListener(ProgressEvent.SOCKET_DATA, this.onSocketData);
+ super.connect(this.proxyHost, this.proxyPort);
+ }
+ }
+
+ private function onConnect(event:Event):void
+ {
+ this.writeUTFBytes("CONNECT "+this.host+":"+this.port+" HTTP/1.1\n\n");
+ this.flush();
+ this.redirectConnectEvent();
+ }
+
+ private function onSocketData(event:ProgressEvent):void
+ {
+ while (this.bytesAvailable != 0)
+ {
+ this.buffer += this.readUTFBytes(1);
+ if (this.buffer.search(/\r?\n\r?\n$/) != -1)
+ {
+ this.checkResponse(event);
+ break;
+ }
+ }
+ }
+
+ private function checkResponse(event:ProgressEvent):void
+ {
+ var responseCode:String = this.buffer.substr(this.buffer.indexOf(" ")+1, 3);
+
+ if (responseCode.search(/^2/) == -1)
+ {
+ var ioError:IOErrorEvent = new IOErrorEvent(IOErrorEvent.IO_ERROR);
+ ioError.text = "Error connecting to the proxy ["+this.proxyHost+"] on port ["+this.proxyPort+"]: " + this.buffer;
+ this.dispatchEvent(ioError);
+ }
+ else
+ {
+ this.redirectSocketDataEvent();
+ this.dispatchEvent(new Event(Event.CONNECT));
+ if (this.bytesAvailable > 0)
+ {
+ this.dispatchEvent(event);
+ }
+ }
+ this.buffer = null;
+ }
+
+ private function redirectConnectEvent():void
+ {
+ super.removeEventListener(Event.CONNECT, onConnect);
+ var deferredEventHandler:Object = this.deferredEventHandlers[Event.CONNECT];
+ if (deferredEventHandler != null)
+ {
+ super.addEventListener(Event.CONNECT, deferredEventHandler.listener, deferredEventHandler.useCapture, deferredEventHandler.priority, deferredEventHandler.useWeakReference);
+ }
+ }
+
+ private function redirectSocketDataEvent():void
+ {
+ super.removeEventListener(ProgressEvent.SOCKET_DATA, onSocketData);
+ var deferredEventHandler:Object = this.deferredEventHandlers[ProgressEvent.SOCKET_DATA];
+ if (deferredEventHandler != null)
+ {
+ super.addEventListener(ProgressEvent.SOCKET_DATA, deferredEventHandler.listener, deferredEventHandler.useCapture, deferredEventHandler.priority, deferredEventHandler.useWeakReference);
+ }
+ }
+
+ public override function addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int=0.0, useWeakReference:Boolean=false):void
+ {
+ if (type == Event.CONNECT || type == ProgressEvent.SOCKET_DATA)
+ {
+ this.deferredEventHandlers[type] = {listener:listener,useCapture:useCapture, priority:priority, useWeakReference:useWeakReference};
+ }
+ else
+ {
+ super.addEventListener(type, listener, useCapture, priority, useWeakReference);
+ }
+ }
+ }
+}
\ No newline at end of file |