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package com.tylerstonge.honeypot.ftp
import java.net.InetSocketAddress
import java.nio.file.{Files, OpenOption, Paths, StandardOpenOption}
import akka.actor.{Actor, Props}
import akka.event.{Logging, LoggingAdapter}
import akka.io.Tcp._
import akka.io.{IO, Tcp}
import akka.util.{ByteString, ByteStringBuilder}
object FtpFileReceiver {
def props(port: Int): Props = Props(new FtpFileReceiver(port))
}
class FtpFileReceiver(port: Int) extends Actor {
val log: LoggingAdapter = Logging(context.system, this)
IO(Tcp)(context.system) ! Bind(self, new InetSocketAddress("localhost", port))
val fileData: ByteStringBuilder = ByteString.newBuilder
override def receive: Receive = {
case Bound(localAddress) =>
log.info("listening on {}", localAddress)
case CommandFailed(_: Bind) => context.stop(self)
case Connected(_, _) =>
log.info("peer connected")
context.become {
case Received(data) =>
fileData.addAll(data)
case PeerClosed =>
log.info("peer closed connection, writing file to disk")
val out = Files.newByteChannel(Paths.get("testfile.txt"), StandardOpenOption.CREATE_NEW, StandardOpenOption.WRITE)
out.write(fileData.result().toByteBuffer)
out.close()
context.stop(self)
}
}
}
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