from __future__ import annotations import logging import os import asyncio from typing import Iterator from flask import send_from_directory from inspect import signature from g4f import version, models from g4f import ChatCompletion, get_model_and_provider from g4f.errors import VersionNotFoundError from g4f.image import ImagePreview, ImageResponse, copy_images, ensure_images_dir, images_dir from g4f.Provider import ProviderType, __providers__, __map__ from g4f.providers.base_provider import ProviderModelMixin from g4f.providers.retry_provider import IterListProvider from g4f.providers.response import BaseConversation, FinishReason, SynthesizeData from g4f.client.service import convert_to_provider from g4f import debug logger = logging.getLogger(__name__) conversations: dict[dict[str, BaseConversation]] = {} class Api: @staticmethod def get_models(): return [{ "name": model.name, "image": isinstance(model, models.ImageModel), "providers": [ getattr(provider, "parent", provider.__name__) for provider in providers ] } for model, providers in models.__models__.values()] @staticmethod def get_provider_models(provider: str, api_key: str = None): if provider in __map__: provider: ProviderType = __map__[provider] if issubclass(provider, ProviderModelMixin): if api_key is not None and "api_key" in signature(provider.get_models).parameters: models = provider.get_models(api_key=api_key) else: models = provider.get_models() return [ { "model": model, "default": model == provider.default_model, "vision": getattr(provider, "default_vision_model", None) == model or model in getattr(provider, "vision_models", []), "image": False if provider.image_models is None else model in provider.image_models, } for model in models ] return [] @staticmethod def get_providers() -> dict[str, str]: return [{ "name": provider.__name__, "label": provider.label if hasattr(provider, "label") else provider.__name__, "parent": getattr(provider, "parent", None), "image": getattr(provider, "image_models", None) is not None, "vision": getattr(provider, "default_vision_model", None) is not None, "webdriver": "webdriver" in provider.get_parameters(), "auth": provider.needs_auth, } for provider in __providers__ if provider.working] @staticmethod def get_version() -> dict: try: current_version = version.utils.current_version except VersionNotFoundError: current_version = None return { "version": current_version, "latest_version": version.utils.latest_version, } def serve_images(self, name): ensure_images_dir() return send_from_directory(os.path.abspath(images_dir), name) def _prepare_conversation_kwargs(self, json_data: dict, kwargs: dict): model = json_data.get('model') or models.default provider = json_data.get('provider') messages = json_data['messages'] api_key = json_data.get("api_key") if api_key is not None: kwargs["api_key"] = api_key do_web_search = json_data.get('web_search') if do_web_search and provider: provider_handler = convert_to_provider(provider) if hasattr(provider_handler, "get_parameters"): if "web_search" in provider_handler.get_parameters(): kwargs['web_search'] = True do_web_search = False if do_web_search: from .internet import get_search_message messages[-1]["content"] = get_search_message(messages[-1]["content"]) if json_data.get("auto_continue"): kwargs['auto_continue'] = True conversation_id = json_data.get("conversation_id") if conversation_id and provider: if provider in conversations and conversation_id in conversations[provider]: kwargs["conversation"] = conversations[provider][conversation_id] if json_data.get("ignored"): kwargs["ignored"] = json_data["ignored"] return { "model": model, "provider": provider, "messages": messages, "stream": True, "ignore_stream": True, "return_conversation": True, **kwargs } def _create_response_stream(self, kwargs: dict, conversation_id: str, provider: str, download_images: bool = True) -> Iterator: def log_handler(text: str): debug.logs.append(text) if debug.logging: print(text) debug.log_handler = log_handler proxy = os.environ.get("G4F_PROXY") provider = kwargs.get("provider") model, provider_handler = get_model_and_provider( kwargs.get("model"), provider, stream=True, ignore_stream=True ) first = True try: result = ChatCompletion.create(**{**kwargs, "model": model, "provider": provider_handler}) for chunk in result: if first: first = False yield self.handle_provider(provider_handler, model) if isinstance(chunk, BaseConversation): if provider is not None: if provider not in conversations: conversations[provider] = {} conversations[provider][conversation_id] = chunk yield self._format_json("conversation", conversation_id) elif isinstance(chunk, Exception): logger.exception(chunk) yield self._format_json("message", get_error_message(chunk)) elif isinstance(chunk, ImagePreview): yield self._format_json("preview", chunk.to_string()) elif isinstance(chunk, ImageResponse): images = chunk if download_images: images = asyncio.run(copy_images(chunk.get_list(), chunk.get("cookies"), proxy)) images = ImageResponse(images, chunk.alt) yield self._format_json("content", str(images)) elif isinstance(chunk, SynthesizeData): yield self._format_json("synthesize", chunk.to_json()) elif not isinstance(chunk, FinishReason): yield self._format_json("content", str(chunk)) if debug.logs: for log in debug.logs: yield self._format_json("log", str(log)) debug.logs = [] except Exception as e: logger.exception(e) yield self._format_json('error', get_error_message(e)) if first: yield self.handle_provider(provider_handler, model) def _format_json(self, response_type: str, content): return { 'type': response_type, response_type: content } def handle_provider(self, provider_handler, model): if isinstance(provider_handler, IterListProvider): provider_handler = provider_handler.last_provider if issubclass(provider_handler, ProviderModelMixin) and provider_handler.last_model is not None: model = provider_handler.last_model return self._format_json("provider", {**provider_handler.get_dict(), "model": model}) def get_error_message(exception: Exception) -> str: return f"{type(exception).__name__}: {exception}"