mas01mj@732: /*
mas01mj@732:   Copyright (c) 2009, Adobe Systems Incorporated
mas01mj@732:   All rights reserved.
mas01mj@732: 
mas01mj@732:   Redistribution and use in source and binary forms, with or without 
mas01mj@732:   modification, are permitted provided that the following conditions are
mas01mj@732:   met:
mas01mj@732: 
mas01mj@732:   * Redistributions of source code must retain the above copyright notice, 
mas01mj@732:     this list of conditions and the following disclaimer.
mas01mj@732:   
mas01mj@732:   * Redistributions in binary form must reproduce the above copyright
mas01mj@732:     notice, this list of conditions and the following disclaimer in the 
mas01mj@732:     documentation and/or other materials provided with the distribution.
mas01mj@732:   
mas01mj@732:   * Neither the name of Adobe Systems Incorporated nor the names of its 
mas01mj@732:     contributors may be used to endorse or promote products derived from 
mas01mj@732:     this software without specific prior written permission.
mas01mj@732: 
mas01mj@732:   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
mas01mj@732:   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
mas01mj@732:   THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
mas01mj@732:   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
mas01mj@732:   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mas01mj@732:   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
mas01mj@732:   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
mas01mj@732:   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
mas01mj@732:   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
mas01mj@732:   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mas01mj@732:   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mas01mj@732: */
mas01mj@732: 
mas01mj@732: package com.adobe.protocols.dict.util
mas01mj@732: {
mas01mj@732: 	import com.adobe.net.proxies.RFC2817Socket;
mas01mj@732: 	import flash.events.ProgressEvent;
mas01mj@732: 
mas01mj@732: 	public class SocketHelper
mas01mj@732: 		extends RFC2817Socket
mas01mj@732: 	{
mas01mj@732: 		private var terminator:String = "\r\n.\r\n";
mas01mj@732: 		private var buffer:String;
mas01mj@732: 		public static var COMPLETE_RESPONSE:String = "completeResponse";
mas01mj@732: 
mas01mj@732: 		public function SocketHelper()
mas01mj@732: 		{
mas01mj@732: 			super();
mas01mj@732: 			buffer = new String();
mas01mj@732: 			addEventListener(ProgressEvent.SOCKET_DATA, incomingData);
mas01mj@732: 		}
mas01mj@732: 
mas01mj@732: 		private function incomingData(event:ProgressEvent):void
mas01mj@732: 		{
mas01mj@732: 			buffer += readUTFBytes(bytesAvailable);
mas01mj@732: 			buffer = buffer.replace(/250[^\r\n]+\r\n/, ""); // Get rid of all 250s. Don't need them.
mas01mj@732: 			var codeStr:String = buffer.substring(0, 3);
mas01mj@732: 			if (!isNaN(parseInt(codeStr)))
mas01mj@732: 			{
mas01mj@732: 				var code:uint = uint(codeStr);
mas01mj@732: 				if (code == 150 || code >= 200)
mas01mj@732: 				{
mas01mj@732: 					buffer = buffer.replace("\r\n", this.terminator);
mas01mj@732: 				}
mas01mj@732: 			}
mas01mj@732: 
mas01mj@732: 			while (buffer.indexOf(this.terminator) != -1)
mas01mj@732: 			{
mas01mj@732: 				var chunk:String = buffer.substring(0, buffer.indexOf(this.terminator));
mas01mj@732: 				buffer = buffer.substring(chunk.length + this.terminator.length, buffer.length);
mas01mj@732: 				throwResponseEvent(chunk);
mas01mj@732: 			}
mas01mj@732: 		}
mas01mj@732: 		
mas01mj@732: 		private function throwResponseEvent(response:String):void
mas01mj@732: 		{
mas01mj@732: 			var responseEvent:CompleteResponseEvent = new CompleteResponseEvent(CompleteResponseEvent.COMPLETE_RESPONSE);
mas01mj@732: 			responseEvent.response = response;
mas01mj@732: 			dispatchEvent(responseEvent);			
mas01mj@732: 		}
mas01mj@732: 	}
mas01mj@732: }