Method _process_auth

pymysql/connections.py:1033–1107

(self, plugin_name, auth_packet)

            print("Succeed to auth")

    def _process_auth(self, plugin_name, auth_packet):
        handler = self._get_auth_plugin_handler(plugin_name)
        if handler:
            try:
                return handler.authenticate(auth_packet)
            except AttributeError:
                if plugin_name != b"dialog":
                    raise err.OperationalError(
                        CR.CR_AUTH_PLUGIN_CANNOT_LOAD,
                        f"Authentication plugin '{plugin_name}'"
                        f" not loaded: - {type(handler)!r} missing authenticate method",
                    )
        if plugin_name == b"caching_sha2_password":
            return _auth.caching_sha2_password_auth(self, auth_packet)
        elif plugin_name == b"sha256_password":
            return _auth.sha256_password_auth(self, auth_packet)
        elif plugin_name == b"mysql_native_password":
            data = _auth.scramble_native_password(self.password, auth_packet.read_all())
        elif plugin_name == b"client_ed25519":
            data = _auth.ed25519_password(self.password, auth_packet.read_all())
        elif plugin_name == b"mysql_old_password":
            data = (
                _auth.scramble_old_password(self.password, auth_packet.read_all())
                + b"\0"
            )
        elif plugin_name == b"mysql_clear_password":
            # https://dev.mysql.com/doc/internals/en/clear-text-authentication.html
            data = self.password + b"\0"
        elif plugin_name == b"dialog":
            pkt = auth_packet
            while True:
                flag = pkt.read_uint8()
                echo = (flag & 0x06) == 0x02
                last = (flag & 0x01) == 0x01
                prompt = pkt.read_all()

                if prompt == b"Password: ":
                    self.write_packet(self.password + b"\0")
                elif handler:
                    resp = "no response - TypeError within plugin.prompt method"
                    try:
                        resp = handler.prompt(echo, prompt)
                        self.write_packet(resp + b"\0")
                    except AttributeError:
                        raise err.OperationalError(
                            CR.CR_AUTH_PLUGIN_CANNOT_LOAD,
                            f"Authentication plugin '{plugin_name}'"
                            f" not loaded: - {handler!r} missing prompt method",
                        )
                    except TypeError:
                        raise err.OperationalError(
                            CR.CR_AUTH_PLUGIN_ERR,
                            f"Authentication plugin '{plugin_name}'"
                            f" {handler!r} didn't respond with string. Returned '{resp!r}' to prompt {prompt!r}",
                        )
                else:
                    raise err.OperationalError(
                        CR.CR_AUTH_PLUGIN_CANNOT_LOAD,