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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 get_last_provider, ChatCompletion
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.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() -> list[str]:
return models._all_models
@staticmethod
def get_provider_models(provider: str, api_key: str = None) -> list[dict]:
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_image_models() -> list[dict]:
image_models = []
index = []
for provider in __providers__:
if hasattr(provider, "image_models"):
if hasattr(provider, "get_models"):
provider.get_models()
parent = provider
if hasattr(provider, "parent"):
parent = __map__[provider.parent]
if parent.__name__ not in index:
for model in provider.image_models:
image_models.append({
"provider": parent.__name__,
"url": parent.url,
"label": parent.label if hasattr(parent, "label") else None,
"image_model": model,
"vision_model": getattr(parent, "default_vision_model", None)
})
index.append(parent.__name__)
elif hasattr(provider, "default_vision_model") and provider.__name__ not in index:
image_models.append({
"provider": provider.__name__,
"url": provider.url,
"label": provider.label if hasattr(provider, "label") else None,
"image_model": None,
"vision_model": provider.default_vision_model
})
index.append(provider.__name__)
return image_models
@staticmethod
def get_providers() -> list[str]:
return {
provider.__name__: (provider.label if hasattr(provider, "label") else provider.__name__)
+ (" (Image Generation)" if getattr(provider, "image_models", None) else "")
+ (" (Image Upload)" if getattr(provider, "default_vision_model", None) else "")
+ (" (WebDriver)" if "webdriver" in provider.get_parameters() else "")
+ (" (Auth)" if provider.needs_auth else "")
for provider in __providers__
if provider.working
}
@staticmethod
def get_version():
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]
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:
if debug.logging:
debug.logs = []
print_callback = debug.log_handler
def log_handler(text: str):
debug.logs.append(text)
print_callback(text)
debug.log_handler = log_handler
try:
result = ChatCompletion.create(**kwargs)
first = True
if isinstance(result, ImageResponse):
if first:
first = False
yield self._format_json("provider", get_last_provider(True))
yield self._format_json("content", str(result))
else:
for chunk in result:
if first:
first = False
yield self._format_json("provider", get_last_provider(True))
if isinstance(chunk, BaseConversation):
if provider:
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.options.get("cookies")))
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))
def _format_json(self, response_type: str, content):
return {
'type': response_type,
response_type: content
}
def get_error_message(exception: Exception) -> str:
message = f"{type(exception).__name__}: {exception}"
provider = get_last_provider()
if provider is None:
return message
return f"{provider.__name__}: {message}"
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