具有基本身份验证的 python aiosmtpd 服务器

Question

我正在尝试创建一个 aiosmtpd 服务器来处理收到的电子邮件。 它在没有身份验证的情况下工作得很好，但我根本不知道如何设置身份验证。 我浏览了文档并搜索了这方面的示例。

我目前如何使用它的示例：

from aiosmtpd.controller import Controller

class CustomHandler:
    async def handle_DATA(self, server, session, envelope):
        peer = session.peer
        mail_from = envelope.mail_from
        rcpt_tos = envelope.rcpt_tos
        data = envelope.content         # type: bytes
        # Process message data...
        print('peer:' + str(peer))
        print('mail_from:' + str(mail_from))
        print('rcpt_tos:' + str(rcpt_tos))
        print('data:' + str(data))
        return '250 OK'

if __name__ == '__main__':
    handler = CustomHandler()
    controller = Controller(handler, hostname='192.168.8.125', port=10025)
    # Run the event loop in a separate thread.
    controller.start()
    # Wait for the user to press Return.
    input('SMTP server running. Press Return to stop server and exit.')
    controller.stop()```

which is the basic method from the documentation.

could someone please provide me with an example as to how to do simple authentication?

Answer 1

好的，由于您使用的是1.3.0版本，您可以关注documentation for Authentication。

快速开始的方法是创建一个遵循Authenticator Callback guidelines 的“身份验证器函数”（可以是处理程序类中的方法，也可以是独立的）。

一个简单的例子：

from aiosmtpd.smtp import AuthResult, LoginPassword

auth_db = {
    b"user1": b"password1",
    b"user2": b"password2",
    b"user3": b"password3",
}

# Name can actually be anything
def authenticator_func(server, session, envelope, mechanism, auth_data):
    # For this simple example, we'll ignore other parameters
    assert isinstance(auth_data, LoginPassword)
    username = auth_data.login
    password = auth_data.password
    # If we're using a set containing tuples of (username, password),
    # we can simply use `auth_data in auth_set`.
    # Or you can get fancy and use a full-fledged database to perform
    # a query :-)
    if auth_db.get(username) == password:
        return AuthResult(success=True)
    else:
        return AuthResult(success=False, handled=False)

然后你正在创建控制器，像这样创建它：

    controller = Controller(
        handler,
        hostname='192.168.8.125',
        port=10025,
        authenticator=authenticator_func,  # i.e., the name of your authenticator function
        auth_required=True,  # Depending on your needs
    )