import com.jcraft.jsch.Channel as Channel
import com.jcraft.jsch.ChannelShell as ChannelShell
import com.jcraft.jsch.JSch as JSch
import com.jcraft.jsch.JSchException as JSchException
import com.jcraft.jsch.Session as Session
import java.lang.System as System
import java.io.PrintStream as PrintStream


#Parameters:
#CMD
#USR
#PWD
#HOST
#PORT

jsch= JSch()
session=jsch.getSession(USR, HOST, PORT)
session.setPassword(PWD)
session.setConfig("StrictHostKeyChecking", "no")
session.connect()

#channel=session.openChannel("shell")
#input_stream=channel.getInputStream()
#output_stream = channel.getOutputStream()
#print_stream = PrintStream(output_stream, True)
#print_stream.println("ls")   

channel=session.openChannel("exec")
channel.setCommand(CMD)
channel.setInputStream(None)
channel.setOutputStream(System.out)
channel.setErrStream(System.err)
input_stream=channel.getInputStream()


def wait_ret():
    global input_stream
    rx = ""
    while True:                
        while (input_stream.available() > 0):
        	i = input_stream.read()
        	if i < 0: 
        	    break
        	rx=rx+chr(i)    	        	        
        if channel.closed: 
            break
        time.sleep(0.1)              
    return rx  
    

channel.connect()

try:
    ret = wait_ret()    
except:
    channel.disconnect()
    session.disconnect()
    raise

set_return(ret)