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| <?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" initialize="upLoad()" layout="vertical">
<mx:Script>
<![CDATA[
import mx.utils.*;
import mx.controls.Alert;
private var fileRef:FileReference;
private var fileSize:uint;
private var fileContents:ByteArray ;
//you need to initiate two scokets one for sending
//commands and second for sending data to FTP Server
//socket for sending commands to FTP
private var s:Socket
//responce from FTP
private var ftpResponce:String;
//socket for sending Data to FTP
private var dataChannelSocket:Socket;
//responce from FTP when sending Data to FTP
private var dataResponce:String;
//will hold the IP address of new socket created by FTP
private var dataChannelIP:String;
//will hold the Port number created by FTP
private var dataChannelPort:int;
private var user:String="user";//FTP usernae
private var pass:String="";//FTP Password
private function receiveReply(e:ProgressEvent):void{
ftpResponce = s.readUTFBytes(s.bytesAvailable)
var serverResponse:Number = Number(ftpResponce.substr(0, 3));
if(ftpResponce.indexOf('227')>-1){
//get the ip from the string response
var temp:Object = ftpResponce.substring(ftpResponce.indexOf("(")+1,ftpResponce.indexOf(")"));
var dataChannelSocket_temp:Object = temp.split(",");
dataChannelIP = dataChannelSocket_temp.slice(0,4).join(".");
dataChannelPort = parseInt(dataChannelSocket_temp[4])*256+int(dataChannelSocket_temp[5]);
//create new Data Socket based on dataChannelSocket and dataChannelSocket port
dataChannelSocket = new Socket(dataChannelIP,dataChannelPort);
dataChannelSocket.addEventListener(ProgressEvent.SOCKET_DATA, receiveData);
}
//few FTP Responce Codes
switch(String(serverResponse)){
case "220" :
//FTP Server ready responce
break;
case "331" :
//User name okay, need password
break;
case "230":
//User logged in
break;
case "250" :
//CWD command successful
break;
case "227" :
//Entering Passive Mode (h1,h2,h3,h4,p1,p2).
break;
default:
}
//for more please
//http://http://www.altools.com/image/support/alftp/ALFTP_35_help/
//FTP_response_codes_rfc_959_messages.htm
traceData(ftpResponce);
}
private function receiveData(e:ProgressEvent):void{
dataResponce = dataChannelSocket.readUTFBytes(
dataChannelSocket.bytesAvailable);
traceData("dataChannelSocket_response—>"+dataResponce);
}
private function showError(e:IOErrorEvent):void{
traceData("Error—>"+e.text);
}
private function showSecError(e:SecurityErrorEvent):void{
traceData("SecurityError–>"+e.text);
}
private function createRemoteFile(fileName:String):void{
if(fileName!=null && fileName !=""){
s.writeUTFBytes("STOR "+fileName+"\n");
s.flush();
}
}
private function sendData():void{
fileContents=fileRef.data as ByteArray;
fileSize=fileRef.size;
dataChannelSocket.writeBytes(fileContents,0,fileSize);
dataChannelSocket.flush();
}
//initialize when application load
private function upLoad():void {
fileRef = new FileReference();
//some eventlistener
fileRef.addEventListener(Event.SELECT, selectEvent);
fileRef.addEventListener(Event.OPEN, onFileOpen);
//this fucntion connect to the ftp server
connect();
//send the usernae and password
this.userName(user);
this.passWord(pass);
//if you want to change the directory for upload file
this.changeDirectory("/");//directory name
//enter into PASSV Mode
s.writeUTFBytes("PASV\n");
s.flush();
}
private function onFileOpen(event:Event):void {
}
private function traceData(event:Object):void {
var tmp:String = "================================\n";
ta.text +=event.toString()+ "\n" ;
ta.verticalScrollPosition += 20;
}
private function ioErrorEvent(event:IOErrorEvent):void{
Alert.show("IOError:" + event.text);
}
private function selectEvent(event:Event):void{
btn_upload.enabled = true;
filename.text = fileRef.name;
fileRef.load();
}
private function uploadFile():void {
createRemoteFile(fileRef.name);
sendData();
}
private function connect():void{
s = new Socket("127.0.0.1",2100);//Socket("ftp.anydomain.com",21);
s.addEventListener(ProgressEvent.SOCKET_DATA, receiveReply);
s.addEventListener(IOErrorEvent.IO_ERROR, showError);
s.addEventListener(SecurityErrorEvent.SECURITY_ERROR, showSecError);
s.addEventListener(Event.CONNECT,onSocketConnect);
s.addEventListener(Event.CLOSE,onSocketClose);
s.addEventListener(Event.ACTIVATE,onSocketAtivate);
}
private function onSocketConnect(evt:Event):void {
//traceData("OnSocketConnect–>"+evt.target.toString());
}
private function onSocketClose(evt:Event):void {
//traceData("onSocketClose–>"+evt.target.toString());
}
private function onSocketAtivate(evt:Event):void {
//traceData("onSocketAtivate–>"+evt.target.toString());
}
private function userName(str:String):void {
sendCommand("USER "+str);
}
private function passWord(str:String):void {
sendCommand("PASS "+str);
}
private function changeDirectory(str:String):void {
sendCommand("CWD "+str);
}
private function sendCommand(arg:String):void {
arg +="\n";
s.writeUTFBytes(arg);
s.flush();
}
]]>
</mx:Script>
<mx:Panel id="up" horizontalAlign="left" width="100%" height="100%">
<mx:Box width="100%" height="100%">
<mx:VBox >
<mx:Form width="449" height="284">
<mx:FormItem label="Selected File:">
<mx:Label id="filename"/>
</mx:FormItem>
<mx:FormItem >
<mx:Button width="80" label="Browse" click="fileRef.browse()" />
<mx:Button width="80" label="Upload" id="btn_upload" enabled="false"
click="uploadFile()" />
<mx:Button width="80" label="Cancel" id="btn_cancel" enabled="false"
click="fileRef.cancel()" />
</mx:FormItem>
<mx:HRule width="100%" tabEnabled="false"/>
<mx:FormItem label="Events:">
<mx:TextArea id="ta" width="260" height="98" />
</mx:FormItem>
</mx:Form>
</mx:VBox>
</mx:Box>
</mx:Panel>
</mx:Application> |
