feat(account-check): 登录接口可选 wgapi / iframe

账号检测原来把 WgapiLoginAPI 写死在执行器里，收不到邮箱验证码时只能干等；
登录任务早就可选 iframe（邮箱验证走 iframe 接口）。默认仍 wgapi，旧行为不变。

web/backend/routers/account_check.py

@@ -113,6 +113,7 @@ def create_account_check_batch(
         max_total_time=req.max_total_time,
         use_proxy=req.use_proxy,
         proxy_config=proxy_config,
+        api_strategy=req.api_strategy,
     )
     thread = threading.Thread(target=runner.run, daemon=True)
     thread.start()

web/backend/schemas.py

@@ -331,6 +331,9 @@ class AccountCheckBatchRequest(BaseModel):
     max_login_retries: int = Field(0, ge=0, le=50)
     max_total_time: float = Field(300, ge=0, le=3600)
     use_proxy: bool = False
+    # 登录接口策略，与登录任务同一套取值：wgapi（默认，保持原行为）或 iframe。
+    # 有些人只有其中一套能收到邮箱验证码，所以要能选。
+    api_strategy: str = "wgapi"
 
 
 class AccountCheckItemOut(BaseModel):
@@ -353,6 +356,7 @@ class AccountCheckBatchOut(BaseModel):
     max_login_retries: int
     max_total_time: float
     use_proxy: bool
+    api_strategy: str = "wgapi"
     total: int
     finished_count: int
     running_count: int

web/backend/services/account_check_service.py

@@ -14,7 +14,7 @@ from typing import cast
 
 from loguru import logger
 
-from core.douyu import DouyuLogin, WgapiLoginAPI
+from core.douyu import DouyuLogin, create_login_api_strategy
 from core.douyu.login import AccountLike
 from core.douyu.proxy_fetcher import ProxyFetcher
 
@@ -109,6 +109,9 @@ class AccountCheckBatch:
     max_total_time: float
     use_proxy: bool
     items: list[AccountCheckItemState]
+    #: 检测使用的登录接口策略（wgapi / iframe）—— 与登录任务同一套取值。
+    #: 默认 wgapi，保持账号检测原来的行为不变。
+    api_strategy: str = "wgapi"
     status: str = "pending"
     message: str = "等待开始"
     created_at: datetime = field(default_factory=_now)
@@ -347,7 +350,7 @@ class AccountCheckRunner:
                 max_total_time=self.batch.max_total_time,
                 proxy_fetcher=self._shared_proxy_fetcher,
                 stop_event=self._stop,
-                api_strategy=WgapiLoginAPI(),
+                api_strategy=create_login_api_strategy(self.batch.api_strategy),
             ).check_account()
         except Exception as exc:  # noqa: BLE001 外部接口与任务边界需要保留宽泛异常兜底
             self._set_item(
@@ -395,6 +398,7 @@ class AccountCheckRunner:
                 "max_login_retries": self.batch.max_login_retries,
                 "max_total_time": self.batch.max_total_time,
                 "use_proxy": self.batch.use_proxy,
+                "api_strategy": self.batch.api_strategy,
                 "total": len(self.batch.items),
                 "finished_count": finished_count,
                 "running_count": running_count,
@@ -486,6 +490,7 @@ class AccountCheckRegistry:
         max_total_time: float,
         use_proxy: bool = False,
         proxy_config: ProxyConfigModel | None = None,
+        api_strategy: str = "wgapi",
     ) -> AccountCheckRunner:
         batch_id = uuid.uuid4().hex[:12]
         normalized_retries = max_login_retries if max_login_retries > 0 else 20
@@ -496,6 +501,7 @@ class AccountCheckRegistry:
             max_login_retries=normalized_retries,
             max_total_time=max(0.0, float(max_total_time or 0)),
             use_proxy=bool(use_proxy),
+            api_strategy=str(api_strategy or "wgapi"),
             items=[
                 AccountCheckItemState(
                     line=account.line,

web/backend/services/login_service.py

@@ -14,7 +14,7 @@ from loguru import logger
 from sqlalchemy import and_, func, or_
 from sqlalchemy.orm import Session
 
-from core.douyu import DouyuLogin, IframeLoginAPI, WgapiLoginAPI
+from core.douyu import DouyuLogin, create_login_api_strategy
 from core.douyu.login import AccountLike
 from core.douyu.proxy_fetcher import ProxyFetcher
 
@@ -26,14 +26,6 @@ from .account_lifecycle import on_ck_verdict, on_login_success
 from .cookie_check_service import check_douyu_cookie
 from .douyu_service import LOGIN_ATTEMPT_IN_FLIGHT_STATUSES
 
-
-def _create_api_strategy(strategy_name: str):
-    """根据名称创建登录接口策略实例。"""
-    if strategy_name == "iframe":
-        return IframeLoginAPI()
-    return WgapiLoginAPI()
-
-
 CHECK_STATUS_MESSAGES = {
     "account_cancelled": "账号已注销",
     "password_wrong": "账号密码错误",
@@ -223,7 +215,7 @@ class LoginBatchRunner:
         self.loop = loop
         self.batch_id = uuid.uuid4().hex[:12]
         self.concurrency = max(1, min(concurrency, 10))  # 限制 1-10
-        self.api_strategy = _create_api_strategy(api_strategy)
+        self.api_strategy = create_login_api_strategy(api_strategy)
         self.mode = mode if mode in ("login", "check", "relogin") else "login"
         self._stop = threading.Event()
         self._counter_lock = threading.Lock()