python - 为 SocketServer 添加 SSL 支持

Question

我有一个基于ThreadingTCPServer 的服务器。现在我想为该服务器添加 SSL 支持。没有 SSL 它工作正常但使用 SSLv3 我无法将客户端连接到服务器，它总是抛出异常:Error 111 Connection Refused。该错误表示该端口上没有 SSL 服务器。

我根据在 Stackoverflow 上找到的示例添加了 SSL 支持。这是我的代码:

服务器:

class BeastServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):

    def __init__(self, server_address, RequestHandlerClass, bind_and_activate=True):
        SocketServer.BaseServer.__init__(self, server_address,
                                                        RequestHandlerClass)
        ctx = SSL.Context(SSL.SSLv3_METHOD)
        cert = 'server.pem'
        key = 'key.pem'
        ctx.use_privatekey_file(key)
        ctx.use_certificate_file(cert)
        self.socket = SSL.Connection(ctx, socket.socket(self.address_family,
                                                        self.socket_type))
        if bind_and_activate:
        #self.server_bind()
        #self.server_a

客户:

class Client(object) :

    def verbinden (self, ip_) :

        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        ssl_sock = ssl.wrap_socket(s, cert_reqs=ssl.CERT_REQUIRED,
                    ssl_version=ssl.PROTOCOL_SSLv3, ca_certs='server.pem')
        ssl_sock.connect((ip_, 10012))

        return ssl_sock

key 和证书文件是使用开放式 SSL 创建的。我希望有人能告诉我问题出在哪里。

谢谢你的帮助

最好的问候帕特里克

Answer 1

只使用标准库

服务器端:

from SocketServer import TCPServer, ThreadingMixIn, StreamRequestHandler
import ssl

class MySSL_TCPServer(TCPServer):
    def __init__(self,
                 server_address,
                 RequestHandlerClass,
                 certfile,
                 keyfile,
                 ssl_version=ssl.PROTOCOL_TLSv1,
                 bind_and_activate=True):
        TCPServer.__init__(self, server_address, RequestHandlerClass, bind_and_activate)
        self.certfile = certfile
        self.keyfile = keyfile
        self.ssl_version = ssl_version

    def get_request(self):
        newsocket, fromaddr = self.socket.accept()
        connstream = ssl.wrap_socket(newsocket,
                                 server_side=True,
                                 certfile = self.certfile,
                                 keyfile = self.keyfile,
                                 ssl_version = self.ssl_version)
        return connstream, fromaddr

class MySSL_ThreadingTCPServer(ThreadingMixIn, MySSL_TCPServer): pass

class testHandler(StreamRequestHandler):
    def handle(self):
        data = self.connection.recv(4096)
        self.wfile.write(data)
#test code
MySSL_ThreadingTCPServer(('127.0.0.1',5151),testHandler,"cert.pem","key.pem").serve_forever()

客户端:

import os
import socket, ssl

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
ssl_sock = ssl.wrap_socket(s,
                           ca_certs="cert.pem",
                           cert_reqs=ssl.CERT_REQUIRED,
                           ssl_version=ssl.PROTOCOL_TLSv1)
ssl_sock.connect(('127.0.0.1',5151))
ssl_sock.send('hello ~MySSL !')
print ssl_sock.recv(4096)
ssl_sock.close()

效果不错