fixed the Base URL usage issue in Podcast Generator tool verification (#10697)

api/core/tools/provider/builtin/podcast_generator/podcast_generator.py

@@ -1,6 +1,7 @@
 from typing import Any
 
 import openai
+from yarl import URL
 
 from core.tools.errors import ToolProviderCredentialValidationError
 from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController
@@ -10,6 +11,7 @@ class PodcastGeneratorProvider(BuiltinToolProviderController):
     def _validate_credentials(self, credentials: dict[str, Any]) -> None:
         tts_service = credentials.get("tts_service")
         api_key = credentials.get("api_key")
+        base_url = credentials.get("openai_base_url")
 
         if not tts_service:
             raise ToolProviderCredentialValidationError("TTS service is not specified")
@@ -17,13 +19,16 @@ class PodcastGeneratorProvider(BuiltinToolProviderController):
         if not api_key:
             raise ToolProviderCredentialValidationError("API key is missing")
 
+        if base_url:
+            base_url = str(URL(base_url) / "v1")
+
         if tts_service == "openai":
-            self._validate_openai_credentials(api_key)
+            self._validate_openai_credentials(api_key, base_url)
         else:
             raise ToolProviderCredentialValidationError(f"Unsupported TTS service: {tts_service}")
 
-    def _validate_openai_credentials(self, api_key: str) -> None:
-        client = openai.OpenAI(api_key=api_key)
+    def _validate_openai_credentials(self, api_key: str, base_url: str | None) -> None:
+        client = openai.OpenAI(api_key=api_key, base_url=base_url)
         try:
             # We're using a simple API call to validate the credentials
             client.models.list()