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Mini Shell
Mini Shell
#! /usr/bin/env python
# -*- coding: utf-8 -*-
"""
a remote python shell
for injection into startserver.py
"""
import os
import select
import socket
import sys
from threading import Thread
from traceback import print_exc
def clientside():
print("client side starting")
host, port = sys.argv[1].split(":")
port = int(port)
myself = open(os.path.abspath(sys.argv[0]), "rU").read()
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((host, port))
sock.sendall(repr(myself) + "\n")
print("send boot string")
inputlist = [sock, sys.stdin]
try:
while 1:
r, w, e = select.select(inputlist, [], [])
if sys.stdin in r:
line = raw_input()
sock.sendall(line + "\n")
if sock in r:
line = sock.recv(4096)
sys.stdout.write(line)
sys.stdout.flush()
except:
import traceback
print(traceback.print_exc())
sys.exit(1)
class promptagent(Thread):
def __init__(self, clientsock):
print("server side starting")
Thread.__init__(self)
self.clientsock = clientsock
def run(self):
print("Entering thread prompt loop")
clientfile = self.clientsock.makefile("w")
filein = self.clientsock.makefile("r")
loc = self.clientsock.getsockname()
while 1:
try:
clientfile.write("%s %s >>> " % loc)
clientfile.flush()
line = filein.readline()
if not line:
raise EOFError("nothing")
if line.strip():
oldout, olderr = sys.stdout, sys.stderr
sys.stdout, sys.stderr = clientfile, clientfile
try:
try:
exec(compile(line + "\n", "<remote pyin>", "single"))
except:
print_exc()
finally:
sys.stdout = oldout
sys.stderr = olderr
clientfile.flush()
except EOFError:
sys.stderr.write("connection close, prompt thread returns")
break
self.clientsock.close()
sock = globals().get("clientsock")
if sock is not None:
prompter = promptagent(sock)
prompter.start()
print("promptagent - thread started")
else:
clientside()
Zerion Mini Shell 1.0