forked from phoenix-oss/llama-stack-mirror
eb2d8a31a5
* Update configure.py to use multiple routing keys for safety * Refactor distribution/datatypes into a providers/datatypes * Cleanup
97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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from together import Together
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from llama_models.llama3.api.datatypes import * # noqa: F403
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from llama_stack.apis.safety import (
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RunShieldResponse,
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Safety,
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SafetyViolation,
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ViolationLevel,
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)
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from llama_stack.distribution.datatypes import RoutableProvider
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from llama_stack.distribution.request_headers import NeedsRequestProviderData
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from .config import TogetherSafetyConfig
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SAFETY_SHIELD_TYPES = {
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"llama_guard": "meta-llama/Meta-Llama-Guard-3-8B",
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"Llama-Guard-3-8B": "meta-llama/Meta-Llama-Guard-3-8B",
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"Llama-Guard-3-11B-Vision": "meta-llama/Llama-Guard-3-11B-Vision-Turbo",
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}
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class TogetherSafetyImpl(Safety, NeedsRequestProviderData, RoutableProvider):
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def __init__(self, config: TogetherSafetyConfig) -> None:
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self.config = config
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async def initialize(self) -> None:
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pass
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async def shutdown(self) -> None:
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pass
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async def validate_routing_keys(self, routing_keys: List[str]) -> None:
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for key in routing_keys:
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if key not in SAFETY_SHIELD_TYPES:
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raise ValueError(f"Unknown safety shield type: {key}")
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async def run_shield(
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self, shield_type: str, messages: List[Message], params: Dict[str, Any] = None
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) -> RunShieldResponse:
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if shield_type not in SAFETY_SHIELD_TYPES:
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raise ValueError(f"Unknown safety shield type: {shield_type}")
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together_api_key = None
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if self.config.api_key is not None:
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together_api_key = self.config.api_key
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else:
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provider_data = self.get_request_provider_data()
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if provider_data is None or not provider_data.together_api_key:
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raise ValueError(
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'Pass Together API Key in the header X-LlamaStack-ProviderData as { "together_api_key": <your api key>}'
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)
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together_api_key = provider_data.together_api_key
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model_name = SAFETY_SHIELD_TYPES[shield_type]
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# messages can have role assistant or user
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api_messages = []
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for message in messages:
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if message.role in (Role.user.value, Role.assistant.value):
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api_messages.append({"role": message.role, "content": message.content})
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violation = await get_safety_response(
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together_api_key, model_name, api_messages
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)
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return RunShieldResponse(violation=violation)
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async def get_safety_response(
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api_key: str, model_name: str, messages: List[Dict[str, str]]
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) -> Optional[SafetyViolation]:
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client = Together(api_key=api_key)
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response = client.chat.completions.create(messages=messages, model=model_name)
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if len(response.choices) == 0:
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return None
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response_text = response.choices[0].message.content
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if response_text == "safe":
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return None
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parts = response_text.split("\n")
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if len(parts) != 2:
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return None
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if parts[0] == "unsafe":
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return SafetyViolation(
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violation_level=ViolationLevel.ERROR,
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user_message="unsafe",
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metadata={"violation_type": parts[1]},
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)
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return None
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