feat: 23 опкод для регистрации, смс шлюз, докер

sms-gateway/app/service.py

@@ -0,0 +1,90 @@
+from __future__ import annotations
+import logging
+import redis.asyncio as aioredis
+from app.config import Config
+from app.providers import SendResult
+from app.providers.base import BaseProvider
+logger = logging.getLogger(__name__)
+RATE_KEY = "sms:rate:{phone}"
+CODE_KEY = "sms:code:{phone}"
+
+class RateLimitExceeded(Exception):
+    def __init__(self, retry_after: int) -> None:
+        self.retry_after = retry_after
+        super().__init__(f"Rate limit exceeded, retry after {retry_after}s")
+
+class SmsService:
+    def __init__(self, config: Config, providers: dict[str, BaseProvider], redis: aioredis.Redis) -> None:
+        self.config = config
+        self.providers = providers
+        self.redis = redis
+
+    async def send_code(self, phone_number: str, code: str | None = None) -> SendResult:
+        normalized = phone_number if phone_number.startswith("+") else f"+{phone_number}"
+        await self._check_rate_limit(normalized)
+        primary_name, fallback_name = self.config.resolve_provider(normalized)
+        result = await self._try_send(primary_name, normalized, code=code)
+        if not result.success and fallback_name:
+            logger.warning(
+                "Провайдер %s недоступен для %s, пробуем fallback: %s",
+                primary_name, normalized, fallback_name,
+            )
+            result = await self._try_send(fallback_name, normalized, code=code)
+        if result.success and result.code:
+            ttl = self.config.settings.code_ttl_seconds
+            key = CODE_KEY.format(phone=normalized)
+            await self.redis.set(key, result.code, ex=ttl)
+            if self.config.settings.log_codes:
+                logger.info("Код сохранён: phone=%s code=%s provider=%s", normalized, result.code, result.provider)
+        return result
+
+    async def _check_rate_limit(self, phone: str) -> None:
+        rl = self.config.settings.rate_limit
+        if not rl.enabled:
+            return
+        key = RATE_KEY.format(phone=phone)
+        pipe = self.redis.pipeline()
+        pipe.incr(key)
+        pipe.ttl(key)
+        count, ttl = await pipe.execute()
+        if count == 1:
+            await self.redis.expire(key, rl.window_seconds)
+            ttl = rl.window_seconds
+        if count > rl.max_attempts:
+            retry_after = ttl if ttl > 0 else rl.window_seconds
+            logger.warning("Rate limit для %s: попытка %d/%d, retry_after=%ds", phone, count, rl.max_attempts, retry_after)
+            raise RateLimitExceeded(retry_after=retry_after)
+
+    async def _try_send(self, provider_name: str, phone: str, code: str | None = None) -> SendResult:
+        provider = self.providers.get(provider_name)
+        if provider is None:
+            logger.error("Провайдер не найден: %s", provider_name)
+            return SendResult(success=False, provider=provider_name, error=f"Provider '{provider_name}' not found")
+        return await provider.send(phone, code=code)
+
+    async def get_pending_code(self, phone_number: str) -> str | None:
+        normalized = phone_number if phone_number.startswith("+") else f"+{phone_number}"
+        key = CODE_KEY.format(phone=normalized)
+        return await self.redis.get(key)
+
+    async def consume_code(self, phone_number: str) -> str | None:
+        normalized = phone_number if phone_number.startswith("+") else f"+{phone_number}"
+        key = CODE_KEY.format(phone=normalized)
+        pipe = self.redis.pipeline()
+        pipe.get(key)
+        pipe.delete(key)
+        code, _ = await pipe.execute()
+        return code
+
+    async def list_pending_codes(self) -> list[dict]:
+        pattern = CODE_KEY.format(phone="*")
+        result = []
+        async for key in self.redis.scan_iter(pattern):
+            pipe = self.redis.pipeline()
+            pipe.get(key)
+            pipe.ttl(key)
+            code, ttl = await pipe.execute()
+            if code:
+                phone = key.replace("sms:code:", "")
+                result.append({"phone": phone, "code": code, "expires_in": max(ttl, 0)})
+        return result