feat(google_text_moderation.py): allow user to use google text moderation for content mod on proxy

enterprise/enterprise_hooks/google_text_moderation.py

@@ -26,10 +26,62 @@ import aiohttp, asyncio
 
 class _ENTERPRISE_GoogleTextModeration(CustomLogger):
     user_api_key_cache = None
+    confidence_categories = [
+        "toxic",
+        "insult",
+        "profanity",
+        "derogatory",
+        "sexual",
+        "death_harm_and_tragedy",
+        "violent",
+        "firearms_and_weapons",
+        "public_safety",
+        "health",
+        "religion_and_belief",
+        "illicit_drugs",
+        "war_and_conflict",
+        "politics",
+        "finance",
+        "legal",
+    ]  # https://cloud.google.com/natural-language/docs/moderating-text#safety_attribute_confidence_scores
 
     # Class variables or attributes
-    def __init__(self, mock_testing: bool = False):
-        pass
+    def __init__(self):
+        try:
+            from google.cloud import language_v1
+        except:
+            raise Exception(
+                "Missing google.cloud package. Run `pip install --upgrade google-cloud-language`"
+            )
+
+        # Instantiates a client
+        self.client = language_v1.LanguageServiceClient()
+        self.moderate_text_request = language_v1.ModerateTextRequest
+        self.language_document = language_v1.types.Document
+        self.document_type = language_v1.types.Document.Type.PLAIN_TEXT
+
+        if hasattr(litellm, "google_moderation_confidence_threshold"):
+            default_confidence_threshold = (
+                litellm.google_moderation_confidence_threshold
+            )
+        else:
+            default_confidence_threshold = (
+                0.8  # by default require a high confidence (80%) to fail
+            )
+
+        for category in self.confidence_categories:
+            if hasattr(litellm, f"{category}_confidence_threshold"):
+                setattr(
+                    self,
+                    f"{category}_confidence_threshold",
+                    getattr(litellm, f"{category}_confidence_threshold"),
+                )
+            else:
+                setattr(
+                    self,
+                    f"{category}_confidence_threshold",
+                    default_confidence_threshold,
+                )
 
     def print_verbose(self, print_statement):
         try:
@@ -39,15 +91,52 @@ class _ENTERPRISE_GoogleTextModeration(CustomLogger):
         except:
             pass
 
-    async def async_pre_call_hook(
+    async def async_moderation_hook(
         self,
-        user_api_key_dict: UserAPIKeyAuth,
-        cache: DualCache,
         data: dict,
-        call_type: str,
     ):
         """
         - Calls Google's Text Moderation API
         - Rejects request if it fails safety check
         """
-        pass
+        if "messages" in data and isinstance(data["messages"], list):
+            text = ""
+            for m in data["messages"]:  # assume messages is a list
+                if "content" in m and isinstance(m["content"], str):
+                    text += m["content"]
+            document = self.language_document(content=text, type_=self.document_type)
+
+            request = self.moderate_text_request(
+                document=document,
+            )
+
+            # Make the request
+            response = self.client.moderate_text(request=request)
+            print(response)
+            for category in response.moderation_categories:
+                category_name = category.name
+                category_name = category_name.lower()
+                category_name = category_name.replace("&", "and")
+                category_name = category_name.replace(",", "")
+                category_name = category_name.replace(
+                    " ", "_"
+                )  # e.g. go from 'Firearms & Weapons' to 'firearms_and_weapons'
+                if category.confidence > getattr(
+                    self, f"{category_name}_confidence_threshold"
+                ):
+                    raise HTTPException(
+                        status_code=400,
+                        detail={
+                            "error": f"Violated content safety policy. Category={category}"
+                        },
+                    )
+            # Handle the response
+            return data
+
+
+# google_text_moderation_obj = _ENTERPRISE_GoogleTextModeration()
+# asyncio.run(
+#     google_text_moderation_obj.async_moderation_hook(
+#         data={"messages": [{"role": "user", "content": "Hey, how's it going?"}]}
+#     )
+# )

enterprise/enterprise_hooks/llama_guard.py

@@ -54,18 +54,19 @@ class _ENTERPRISE_LlamaGuard(CustomLogger):
 
         The llama guard prompt template is applied automatically in factory.py
         """
-        safety_check_messages = data["messages"][
-            -1
-        ]  # get the last response - llama guard has a 4k token limit
-        response = await litellm.acompletion(
-            model=self.model,
-            messages=[safety_check_messages],
-            hf_model_name="meta-llama/LlamaGuard-7b",
-        )
-
-        if "unsafe" in response.choices[0].message.content:
-            raise HTTPException(
-                status_code=400, detail={"error": "Violated content safety policy"}
+        if "messages" in data:
+            safety_check_messages = data["messages"][
+                -1
+            ]  # get the last response - llama guard has a 4k token limit
+            response = await litellm.acompletion(
+                model=self.model,
+                messages=[safety_check_messages],
+                hf_model_name="meta-llama/LlamaGuard-7b",
             )
 
+            if "unsafe" in response.choices[0].message.content:
+                raise HTTPException(
+                    status_code=400, detail={"error": "Violated content safety policy"}
+                )
+
         return data

litellm/__init__.py

@@ -56,6 +56,7 @@ aleph_alpha_key: Optional[str] = None
 nlp_cloud_key: Optional[str] = None
 use_client: bool = False
 llamaguard_model_name: Optional[str] = None
+google_moderation_confidence_threshold: Optional[float] = None
 logging: bool = True
 caching: bool = (
     False  # Not used anymore, will be removed in next MAJOR release - https://github.com/BerriAI/litellm/discussions/648

litellm/proxy/proxy_server.py

@@ -1427,6 +1427,18 @@ class ProxyConfig:
 
                                 llama_guard_object = _ENTERPRISE_LlamaGuard()
                                 imported_list.append(llama_guard_object)
+                            elif (
+                                isinstance(callback, str)
+                                and callback == "google_text_moderation"
+                            ):
+                                from litellm.proxy.enterprise.enterprise_hooks.google_text_moderation import (
+                                    _ENTERPRISE_GoogleTextModeration,
+                                )
+
+                                google_text_moderation_obj = (
+                                    _ENTERPRISE_GoogleTextModeration()
+                                )
+                                imported_list.append(google_text_moderation_obj)
                             else:
                                 imported_list.append(
                                     get_instance_fn(