Method get_verification_code

src/services/temp_mail.py:678–846

从 TempMail 邮箱获取验证码 Args: email: 邮箱地址 email_id: 未使用，保留接口兼容 timeout: 超时时间（秒） pattern: 验证码正则 otp_sent_at: OTP 发送时间戳（用于过滤旧邮件） Returns: 验证码字符串，超时返回 None

(
        self,
        email: str,
        email_id: str = None,
        timeout: int = 120,
        pattern: str = OTP_CODE_PATTERN,
        otp_sent_at: Optional[float] = None,
    )

            raise EmailServiceError(f"创建邮箱失败: {e}")

    def get_verification_code(
        self,
        email: str,
        email_id: str = None,
        timeout: int = 120,
        pattern: str = OTP_CODE_PATTERN,
        otp_sent_at: Optional[float] = None,
    ) -> Optional[str]:
        """
        从 TempMail 邮箱获取验证码

        Args:
            email: 邮箱地址
            email_id: 未使用，保留接口兼容
            timeout: 超时时间（秒）
            pattern: 验证码正则
            otp_sent_at: OTP 发送时间戳（用于过滤旧邮件）

        Returns:
            验证码字符串，超时返回 None
        """
        logger.info(f"正在从 TempMail 邮箱 {email} 获取验证码...")

        start_time = time.time()
        seen_mail_ids: set = set()
        last_used_mail_id = self._last_used_mail_ids.get(email)
        unknown_ts_grace_seconds = 15

        # 优先使用用户级 JWT，回退到 admin API
        cached = self._email_cache.get(email, {})
        jwt = cached.get("jwt")
        address_id = (
            str(cached.get("address_id") or "").strip()
            or str(email_id or "").strip()
            or None
        )
        poll_count = 0

        while time.time() - start_time < timeout:
            poll_count += 1
            try:
                mails = self._fetch_mails_once(email=email, jwt=jwt, email_id=address_id)
                if not mails:
                    if poll_count == 1 or poll_count % 5 == 0:
                        logger.info(
                            f"TempMail 轮询[{email}] 第 {poll_count} 次: 暂无邮件（已等待 {int(time.time() - start_time)}s）"
                        )
                    time.sleep(3)
                    continue

                if poll_count == 1 or poll_count % 3 == 0:
                    logger.info(
                        f"TempMail 轮询[{email}] 第 {poll_count} 次: 收到 {len(mails)} 封候选邮件"
                    )

                candidates: List[Dict[str, Any]] = []
                unknown_ts_candidates: List[Dict[str, Any]] = []