class forwarder(asyncore.dispatcher):
def __init__(self, ip, port, remoteip,remoteport,backlog=5):
asyncore.dispatcher.__init__(self)
self.remoteip=remoteip
self.remoteport=remoteport
self.create_socket(socket.AF_INET,socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind((ip,port))
self.listen(backlog)
def handle_accept(self):
conn, addr = self.accept()
# print '--- Connect --- '
sender(receiver(conn),self.remoteip,self.remoteport)
forwarder(options.local_ip,options.local_port,options.remote_ip,options.remote_port) asyncore.loop()
class sender(asyncore.dispatcher):
def __init__(self, receiver, remoteaddr,remoteport):
asyncore.dispatcher.__init__(self)
self.receiver=receiver
receiver.sender=self
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.connect((remoteaddr, remoteport))
def handle_connect(self):
pass
def handle_read(self):
read = self.recv(4096)
# print '<-- i'%len(read)
self.receiver.to_remote_buffer += read
def writable(self):
return (len(self.receiver.from_remote_buffer) > 0)
def handle_write(self):
sent = self.send(self.receiver.from_remote_buffer)
# print '--> i'%sent
self.receiver.from_remote_buffer = self.receiver.from_remote_buffer[sent:]
def handle_close(self):
self.close()
self.receiver.close()
class receiver(asyncore.dispatcher):
def __init__(self,conn):
asyncore.dispatcher.__init__(self,conn)
self.from_remote_buffer=''
self.to_remote_buffer=''
self.sender=None
def handle_connect(self):
pass
def handle_read(self):
read = self.recv(4096)
# print 'i -->'%len(read)
self.from_remote_buffer += read
def writable(self):
return (len(self.to_remote_buffer) > 0)
def handle_write(self):
sent = self.send(self.to_remote_buffer)
# print 'i <--'%sent
self.to_remote_buffer = self.to_remote_buffer[sent:]
def handle_close(self):
self.close()
if self.sender:
self.sender.close()
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