feat: implement t-604 keyword prompt moderation

apps/api/generation.py

@@ -29,6 +29,8 @@ from apps.billing.services import (
     mark_call_success,
 )
 
+from apps.moderation.services import moderate_prompt
+
 from .errors import api_error
 from .storage import save_generated_image
 
@@ -60,6 +62,7 @@ def generate_title_response(*, user, api_key, request_data: Mapping[str, Any]) -
     alias = request_data.get("model") or None
     resolution = normalize_resolution(request_data.get("resolution") or "1K") or "1K"
     parameters = dict(request_data.get("parameters") or {})
+    moderate_prompt_or_raise(user=user, api_key=api_key, prompt=prompt)
     image_input = load_image_input(request_data)
 
     model_alias = resolve_model_alias_or_raise(CallRecord.OperationType.TITLE, alias)
@@ -134,6 +137,7 @@ def generate_image_response(*, user, api_key, request, request_data: Mapping[str
     resolution = normalize_resolution(request_data.get("resolution") or "1K") or "1K"
     aspect_ratio = request_data.get("aspect_ratio") or "1:1"
     parameters = dict(request_data.get("parameters") or {})
+    moderate_prompt_or_raise(user=user, api_key=api_key, prompt=prompt)
     image_input = load_image_input(request_data)
 
     model_alias = resolve_model_alias_or_raise(CallRecord.OperationType.IMAGE, alias)
@@ -202,6 +206,12 @@ def generate_image_response(*, user, api_key, request, request_data: Mapping[str
     }
 
 
+def moderate_prompt_or_raise(*, user, api_key, prompt: str) -> None:
+    outcome = moderate_prompt(user=user, api_key=api_key, prompt=prompt)
+    if outcome.blocked:
+        raise ApiRequestError("content_blocked", "输入内容未通过安全审核", status.HTTP_400_BAD_REQUEST)
+
+
 def resolve_model_alias_or_raise(operation_type: str, alias: str | None):
     try:
         return resolve_model_alias(operation_type, alias)