Update core/app.py

core/app.py

@@ -10,6 +10,7 @@ from slowapi import Limiter
 from slowapi.util import get_remote_address
 from slowapi.errors import RateLimitExceeded
 from fastapi.middleware.cors import CORSMiddleware
+from langdetect import detect, LangDetectException
 
 # Create necessary directories if they don't exist
 os.makedirs("static", exist_ok=True)
@@ -81,6 +82,17 @@ class SpeechRequest(BaseModel):
     input: str = Field(..., max_length=5000)
     voice: str
 
+# Allowed languages
+ALLOWED_LANGUAGES = {"en", "ja", "zh", "id"}  # Codes for English, Japanese, Chinese, Indonesian
+
+# Function to validate language
+def validate_language(text: str) -> bool:
+    try:
+        lang = detect(text)
+        return lang in ALLOWED_LANGUAGES
+    except LangDetectException:
+        return False
+
 # Endpoint to generate speech
 @app.post("/v1/audio/speech")
 @app.get("/v1/audio/speech")
@@ -89,6 +101,13 @@ class SpeechRequest(BaseModel):
 @limiter.limit(f"{RATE_LIMITS['rpd']}/day")
 async def create_speech(request: Request, speech_request: SpeechRequest):
     try:
+        # Validate input language
+        if not validate_language(speech_request.input):
+            raise HTTPException(
+                status_code=400,
+                detail="Input text must be in English, Japanese, Chinese, or Indonesian."
+            )
+
         if speech_request.model != "Pyx r1-voice":
             raise HTTPException(status_code=400, detail="Invalid model. Only 'Pyx r1-voice' is supported.")
         
@@ -112,6 +131,7 @@ async def create_speech(request: Request, speech_request: SpeechRequest):
         raise HTTPException(status_code=500, detail=str(e))
 
 # Endpoint to get available models
+@app.get("/models")
 @app.get("/v1/models")
 async def get_models():
     models_response = []