init medical training project

apps/user/utils/sms.py

@@ -0,0 +1,33 @@
+import random
+import string
+import logging
+from abc import ABC, abstractmethod
+
+from django.conf import settings
+
+logger = logging.getLogger(__name__)
+
+
+def generate_sms_code(length=6) -> str:
+    return ''.join(random.choices(string.digits, k=length))
+
+
+# ── 策略接口 ──────────────────────────────────────────────────────────────────
+
+class SmsService(ABC):
+    @abstractmethod
+    def send_code(self, phone: str, scene: str, code: str) -> None:
+        """发送验证码短信。失败时抛出 SmsError。"""
+
+
+class SmsError(Exception):
+    pass
+
+
+def get_sms_service() -> SmsService:
+    provider = getattr(settings, 'SMS_PROVIDER', 'mock')
+    if provider == 'aliyun':
+        from apps.user.utils.sms_aliyun import AliyunSmsService
+        return AliyunSmsService()
+    from apps.user.utils.sms_mock import MockSmsService
+    return MockSmsService()