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agent.py
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agent.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @FileName: agent.py
# @Software:
# @Author: Leven Xiang
# @Mail: xiangle0109@outlook.com
# @Date: 2021/7/3 20:43
import getopt
import os
import random
from socket import gethostname, gethostbyname
import sys
import time
if sys.version_info < (3, 6):
print("Python版本必须大于3.6!")
sys.exit(1)
from socketserver import ThreadingMixIn, TCPServer, BaseRequestHandler
from subprocess import Popen
def set_color(color, message):
"""
:param color: 消息颜色
:param message 消息内容
:return: None
"""
colors = {'red': 31, 'green': 32, 'yellow': 33, 'blue': 34, 'dark_green': 36, 'default': 37}
if color in colors:
fore = colors[color]
else:
fore = 37
color = '\033[%d;%dm' % (1, fore)
return '%s%s\033[0m' % (color, message)
try:
import bson
except (ImportError, ModuleNotFoundError):
print(set_color("red", "Python运行环境中未安装bson,将进行安装"))
b_install = Popen('python3 -m pip install bson')
b_install.wait()
if b_install.poll() == 0:
import bson
else:
print(set_color("red", "bson安装出现错误,未能正确安装,请检查系统环境或手动安装"))
sys.exit(1)
def usage():
print(
"""
使用: python3 {} [options...]
参数:
-i : 指定运行服务的IP,默认IP <0.0.0.0>
-p : 指定运行服务的端口,默认端口 <9876>
-h : 帮助信息
python3 {} -i 172.16.123.10 -p 1234
""".format(sys.argv[0], sys.argv[0])
)
def get_time():
return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))
class ServerEndpoint(ThreadingMixIn, TCPServer):
# 如果被控端触发了Ctrl-C 将杀死所有派生线程
daemon_threads = True
# 快速重新绑定
allow_reuse_address = True
def __init__(self, server_address, RequestHandlerClass):
TCPServer.__init__(self, server_address, RequestHandlerClass)
class TcpServerHandler(BaseRequestHandler):
def __init__(self, request, client_address, server):
super().__init__(request, client_address, server)
self.command = ""
self.show = True
self.keep_receive = True
self.columns = 80
self.banner = ""
self.tmp_file = ""
@staticmethod
def handle_msg(keep_receive, signal, msg_list, *text):
"""
封装发送的消息数据
:param keep_receive: Ture/False,给控制端发送,用于控制端判断数据是否接收完,False表示当前为最后一个包,True表示后续还有数据
:param signal: 给控制端发送的信号,用于控制端来做判断。或者是控制端给被控端发送需要被捕获的异常,用于被控端处理控制端出现的异常。
:param msg_list: list,传入的特定的消息内容,比如是执行命令的结果缓存,通过readlines()读取直接传入
:param text: tuple,需要组合的消息,将会和msg_list拼接
:return: dict
"""
msg_list = msg_list + list(text)
return {"keep_receive": keep_receive, "signal": signal, "data": msg_list}
@staticmethod
def handle_data(data):
"""
转换和处理数据
:param data: 接收传入bson或dict
:return: 如果传入是bson则会尝试解析成dict,如果传入是dict会尝试转换成bson
"""
if isinstance(data, bytes):
_data = bson.loads(data)
if isinstance(_data, dict):
return True, _data
else:
return False, {"keep_receive": False, "signal": "", "data": ["使用handle_data处理数据时,解析出来的数据类型不正确,解析后的类型是:{}".format(_data)]}
elif isinstance(data, dict):
return True, bson.dumps(data)
else:
return False, bson.dumps({"keep_receive": False, "signal": "", "data": ["使用handle_data处理数据时,传入的数据类型不正确,data类型是:{}".format(data)]})
def exec_command(self):
log_file = "{}-{}".format(self.tmp_file, random.randint(100000, 999999))
w_pipe = open(log_file, "wb")
result = Popen(self.command, stdout=w_pipe, stderr=w_pipe, shell=True, bufsize=0, universal_newlines=True)
r_pipe = open(log_file, "r")
try:
while True:
read_data = r_pipe.readlines(0-10)
try:
# 尝试再次获取一次控制端的recv,flags=0x40或64 也就是(socket.MSG_DONTWAIT)
# 正常情况下socket recv如果没有获取到新的消息,会一直等待接收,会阻塞后续的操作
# check_status, check_data = self.handle_data(self.request.recv(65535, 0x40))
check_status, check_data = self.handle_data(self.request.recv(65535, 64))
if not check_status:
check_data = {"keep_receive": True, "signal": "", "data": ["get receive check_data is null, check_data: {}".format(check_data)]}
except Exception as e:
check_data = {"keep_receive": True, "signal": "", "data": ["get receive check_data is null, reason: {}".format(e)]}
# 如果启用显示实时回显执行过程
if self.show:
# 尝试获取一下socket是否有传输带有SignalKillByKeyboardInterrupt,如果有表示控制端已经接收到Ctrl-C
# 则被控端当前正在运行的命令需要被强制结束。
if "SignalKillByKeyboardInterrupt" in check_data.get("signal"):
result.send_signal(2)
# 再发送一次文件内容,比如程序在接收到2信号会处理信号,会有新的结果产生
print("控制端发送<Ctrl-C>,命令<{}>,被强制终止...".format(self.command))
time.sleep(0.1)
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
r_pipe.readlines(),
set_color("dark_green", "{} -- Aborted -- {}".format(gethostbyname(gethostname()), get_time())),
))
self.request.send(send_msg)
self.request.close()
return
# 如果result.pool()不为None 说明己执行完成
if result.poll() is not None:
if len(read_data) > 0:
_, send_msg = self.handle_data(self.handle_msg(True, "", read_data))
self.request.send(send_msg)
continue
break
# 否则还在执行中,持续读取文件内容发给控制端
else:
if len(read_data) > 0:
_, send_msg = self.handle_data(self.handle_msg(True, "", read_data))
self.request.send(send_msg)
continue
# 否则就是不回显执行过程
else:
if result.poll() is not None:
break
if result.returncode == 0:
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
[],
set_color("green", "{} -- SUCCESS -- {}".format(gethostbyname(gethostname()), get_time())),
))
else:
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
[],
set_color("red", "{} -- FAILED -- {}".format(gethostbyname(gethostname()), get_time())),
))
time.sleep(0.1)
self.request.send(send_msg)
except BrokenPipeError:
pass
except KeyboardInterrupt:
result.send_signal(2)
time.sleep(0.1)
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
r_pipe.readlines(),
set_color("yellow", "{} -- KeyboardInterrupt -- {}".format(gethostbyname(gethostname()), get_time())),
))
self.request.send(send_msg)
except Exception as e:
result.send_signal(2)
time.sleep(0.1)
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
r_pipe.readlines(),
"被控端执行过程出现异常:{}".format(e),
set_color("red", "{} -- Exception -- {}".format(gethostbyname(gethostname()), get_time())),
))
self.request.send(send_msg)
finally:
w_pipe.close()
r_pipe.close()
os.remove(log_file)
def handle_setup_msg(self):
_, setup_msg = self.handle_data(self.handle_msg(
True,
"",
[],
"Setup\t--\t连接建立:\t<{}:{}> ←-→ <{}:{}>".format(
self.client_address[0], self.client_address[1],
gethostbyname(gethostname()),
self.server.server_address[1]
)
))
self.request.send(setup_msg)
def handle_run_msg(self):
_, run_msg = self.handle_data(self.handle_msg(
True,
"",
[],
set_color("blue", "{} -- Result >>".format(gethostbyname(gethostname()))),
))
self.request.send(run_msg)
def setup(self):
print("Run\t\t--\t开始执行:\t", time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time())))
print("Setup\t--\t连接建立:\t<{}:{}>".format(self.client_address[0], self.client_address[1]))
def handle(self):
send_msg = {"keep_receive": False, "signal": "", "data": []}
receive_status, receive_data = self.handle_data(self.request.recv(65535))
# 先判断下接收到的第一个数据是否合规
if receive_status and not receive_data.get("signal") and receive_data.get("setup") == 1:
self.command = receive_data.get("command")
self.show = receive_data.get("show")
self.keep_receive = receive_data.get("keep_receive")
self.columns = receive_data.get("columns")
if 'win' in sys.platform:
self.tmp_file = "{}\\socket-server-filestream" .format(os.getenv('TMP'))
else:
self.tmp_file = "/tmp/socket-server-filestream"
self.banner = "=" * self.columns
# self.handle_setup_msg()
self.handle_run_msg()
self.exec_command()
else:
_, send_msg = self.handle_data(self.handle_msg(
False,
"SocketControlledEndSayBye",
[],
set_color("red", "{} -- Error -- >>".format(gethostbyname(gethostname()))),
"{}".format(receive_data),
))
self.request.send(send_msg)
def finish(self):
self.request.close()
print("Finish\t--\t执行命令:\t<{}> 完成...".format(self.command))
if __name__ == "__main__":
"""
被控端
"""
host = "0.0.0.0"
port = 9876
try:
opts, args = getopt.getopt(sys.argv[1:], "hi:p:")
except getopt.GetoptError:
usage()
sys.exit()
for opt, arg in opts:
if opt in ("-h", "--help"):
usage()
sys.exit()
elif opt == "-i":
host = arg
elif opt == "-p":
port = arg
try:
# 衍生一个多线程被控端
server = ServerEndpoint((host, port), TcpServerHandler)
print(set_color("blue", "使用<{}:{}>启动被控端...".format(host, port)))
# 启动服务,服务将一直保持运行状态
server.serve_forever()
except KeyboardInterrupt:
print("Ctrl-C,强制终止...")
sys.exit(1)