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ssh_terminal.py
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#coding: utf-8
# +-------------------------------------------------------------------
# | 宝塔Linux面板
# +-------------------------------------------------------------------
# | Copyright (c) 2015-2099 宝塔软件(http://bt.cn) All rights reserved.
# +-------------------------------------------------------------------
# | Author: 黄文良 <[email protected]>
# +-------------------------------------------------------------------
try:
import paramiko
except: pass
import json
import time
import os
import sys
import socket
import threading
sys.path.insert(0, '/www/server/panel/class/')
import public
from io import BytesIO, StringIO
from BTPanel import session
class ssh_terminal:
__log_type = '宝塔终端'
_coll_user = None
_host = None
_web_socket = None
_ssh_info = None
_ssh_socket = None
_en_key = '4BbA7076e19H'
_thread = None
_my_terms = {}
_room = "ssh_data"
_send_last = False
_send_last_time = 0
_connect_time = 0
def __init__(self):
pass
def connect(self, ssh_info=None):
if ssh_info: self._ssh_info = ssh_info
if not self._host: self._host = self._ssh_info['host']
# print('----------连接时的ssh_info--------------')
if self._ssh_info['host'] in self._my_terms:
if time.time() - self._my_terms[self._host].last_time < 86400:
return True
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 262144)
sock.connect((self._ssh_info['host'], int(self._ssh_info['port'])))
except Exception as e:
self._web_socket.send("\r服务器连接失败!\r")
return False
# 使用Transport连接
p1 = paramiko.Transport(sock)
p1.start_client()
if not 'pkey' in self._ssh_info: self._ssh_info['pkey'] = None
if not 'c_type' in self._ssh_info: self._ssh_info['c_type'] = None
try:
# 如果有pkey时则使用RSA私钥登录
if self._ssh_info['pkey'] and self._ssh_info['c_type']:
# print('------使用私钥登陆---------')
# 将RSA私钥转换为io对象，然后生成rsa_key对象
p_file = StringIO(self._ssh_info['pkey'])
pkey = paramiko.RSAKey.from_private_key(p_file)
p1.auth_publickey(username=self._ssh_info['username'].strip(), key=pkey)
else:
# print('-----------使用密码登陆-----------')
p1.auth_password(username=self._ssh_info['username'].strip(), password=self._ssh_info['password'])
except Exception as e:
self._web_socket.send("\r用户名或密码错误!\r")
p1.close()
return False
self._my_terms[self._host] = public.dict_obj()
self._my_terms[self._host].last_time = time.time()
self._my_terms[self._host].connect_time = time.time()
# 打开会话
self._my_terms[self._host].tty = p1.open_session()
# 获取终端对象
self._my_terms[self._host].tty.get_pty(term='xterm', width=100, height=34)
self._my_terms[self._host].tty.invoke_shell()
# 记录登陆记录
#public.M('ssh_records').add('coll_user,ssh_user,host,cmd,addtime', (self._coll_user, self._ssh_info['username'], self._ssh_info['host'], 'login', int(time.time())))
#print("登录成功")
self._my_terms[self._host].last_send = []
self._send_last = True
self._connect_time = time.time()
return True
def resize(self, data):
try:
data = json.loads(data)
self._my_terms[self._host].tty.resize_pty(width=data['width'], height=data['height'], width_pixels=data['width_px'], height_pixels=data['height_px'])
return True
except:
print(public.get_error_info())
return False
def send(self):
try:
while not self._web_socket.closed:
c_data = self._web_socket.receive()
if not c_data: continue
if len(c_data) > 10:
if c_data.find('new_terminal') != -1:
if not self._host in self._my_terms:
self.connect()
else:
if time.time() - self._connect_time > 3:
self.last_send()
continue
if c_data.find("reset_connect") != -1:
if not self._host in self._my_terms: self.connect()
continue
if self._host in self._my_terms:
self._my_terms[self._host].last_time = time.time()
self._my_terms[self._host].tty.send(c_data)
else:
return
except:
print(public.get_error_info())
def recv(self):
try:
n = 0
while not self._web_socket.closed:
self.not_send()
#if n == 0: self.last_send()
data = self._my_terms[self._host].tty.recv(1024)
self.not_send()
if not data:
self.close()
self._web_socket.send('连接已断开,连续按两次回车将尝试重新连接!')
return
try:
result = data.decode()
except:
result = str(data)
if not result: continue
if self._web_socket.closed:
self._my_terms[self._host].not_send = result
return
self.set_last_send(result)
if not n: n = 1
self._web_socket.send(result)
except:
print(public.get_error_info())
def set_last_send(self,result):
last_size = 1024
if not 'last_send' in self._my_terms[self._host]:
self._my_terms[self._host].last_send = []
self._my_terms[self._host].last_send.append(result)
last_len = len(self._my_terms[self._host].last_send)
if last_len > last_size:
self._my_terms[self._host].last_send = self._my_terms[self._host].last_send[last_len-last_size:]
def not_send(self):
if 'not_send' in self._my_terms[self._host]:
if self._my_terms[self._host].not_send:
self._web_socket.send(self._my_terms[self._host].not_send)
self._my_terms[self._host].not_send = ""
def last_send(self):
if time.time()- self._send_last_time < 3: return False
self._send_last_time = time.time()
time.sleep(0.3)
if not self._host in self._my_terms: return False
if 'last_send' in self._my_terms[self._host]:
for d in self._my_terms[self._host].last_send:
self._web_socket.send(d)
def close(self):
try:
self._my_terms[self._host].tty.close()
except:pass
if self._host in self._my_terms:
del self._my_terms[self._host]
self._thread = None
def run(self,web_socket, ssh_info=None):
self._web_socket = web_socket
if 'id' in ssh_info:
self._ssh_info = self.get_server_ssh_info(ssh_info)
else:
self._ssh_info = ssh_info
if not self._ssh_info:
return
result = self.connect()
time.sleep(0.1)
if result:
sendt = threading.Thread(target=self.send)
recvt = threading.Thread(target=self.recv)
sendt.start()
recvt.start()
sendt.join()
recvt.join()
if time.time() - self._my_terms[self._host].last_time > 86400: self.close()
self._web_socket = None