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authorH Lohaus <hlohaus@users.noreply.github.com>2024-03-16 18:22:26 +0100
committerGitHub <noreply@github.com>2024-03-16 18:22:26 +0100
commitfb2061da48525edab9cd993205bb5e30c386aa1a (patch)
tree1e740bd6955dfd27b9a4d773df07234ed9e5c75e /g4f/gui/server/backend.py
parentMerge pull request #1694 from ComRSMaster/main (diff)
parentAdd conversation support for Bing (diff)
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Diffstat (limited to 'g4f/gui/server/backend.py')
-rw-r--r--g4f/gui/server/backend.py163
1 files changed, 21 insertions, 142 deletions
diff --git a/g4f/gui/server/backend.py b/g4f/gui/server/backend.py
index 454ed1c6..fb8404d4 100644
--- a/g4f/gui/server/backend.py
+++ b/g4f/gui/server/backend.py
@@ -1,15 +1,9 @@
-import logging
import json
from flask import request, Flask
-from typing import Generator
-from g4f import version, models
-from g4f import get_last_provider, ChatCompletion
from g4f.image import is_allowed_extension, to_image
-from g4f.errors import VersionNotFoundError
-from g4f.Provider import __providers__
-from g4f.Provider.bing.create_images import patch_provider
+from .api import Api
-class Backend_Api:
+class Backend_Api(Api):
"""
Handles various endpoints in a Flask application for backend operations.
@@ -33,6 +27,10 @@ class Backend_Api:
'function': self.get_models,
'methods': ['GET']
},
+ '/backend-api/v2/models/<provider>': {
+ 'function': self.get_provider_models,
+ 'methods': ['GET']
+ },
'/backend-api/v2/providers': {
'function': self.get_providers,
'methods': ['GET']
@@ -54,7 +52,7 @@ class Backend_Api:
'methods': ['POST']
}
}
-
+
def handle_error(self):
"""
Initialize the backend API with the given Flask application.
@@ -64,49 +62,7 @@ class Backend_Api:
"""
print(request.json)
return 'ok', 200
-
- def get_models(self):
- """
- Return a list of all models.
-
- Fetches and returns a list of all available models in the system.
-
- Returns:
- List[str]: A list of model names.
- """
- return models._all_models
-
- def get_providers(self):
- """
- Return a list of all working providers.
- """
- return [provider.__name__ for provider in __providers__ if provider.working]
-
- def get_version(self):
- """
- Returns the current and latest version of the application.
-
- Returns:
- dict: A dictionary containing the current and latest version.
- """
- try:
- current_version = version.utils.current_version
- except VersionNotFoundError:
- current_version = None
- return {
- "version": current_version,
- "latest_version": version.utils.latest_version,
- }
-
- def generate_title(self):
- """
- Generates and returns a title based on the request data.
- Returns:
- dict: A dictionary with the generated title.
- """
- return {'title': ''}
-
def handle_conversation(self):
"""
Handles conversation requests and streams responses back.
@@ -114,26 +70,10 @@ class Backend_Api:
Returns:
Response: A Flask response object for streaming.
"""
- kwargs = self._prepare_conversation_kwargs()
-
- return self.app.response_class(
- self._create_response_stream(kwargs),
- mimetype='text/event-stream'
- )
-
- def _prepare_conversation_kwargs(self):
- """
- Prepares arguments for chat completion based on the request data.
-
- Reads the request and prepares the necessary arguments for handling
- a chat completion request.
-
- Returns:
- dict: Arguments prepared for chat completion.
- """
+
kwargs = {}
- if "image" in request.files:
- file = request.files['image']
+ if "file" in request.files:
+ file = request.files['file']
if file.filename != '' and is_allowed_extension(file.filename):
kwargs['image'] = to_image(file.stream, file.filename.endswith('.svg'))
kwargs['image_name'] = file.filename
@@ -141,66 +81,20 @@ class Backend_Api:
json_data = json.loads(request.form['json'])
else:
json_data = request.json
-
- provider = json_data.get('provider', '').replace('g4f.Provider.', '')
- provider = provider if provider and provider != "Auto" else None
-
- if "image" in kwargs and not provider:
- provider = "Bing"
- if provider == 'OpenaiChat':
- kwargs['auto_continue'] = True
-
- messages = json_data['messages']
- if json_data.get('web_search'):
- if provider == "Bing":
- kwargs['web_search'] = True
- else:
- # ResourceWarning: unclosed event loop
- from .internet import get_search_message
- messages[-1]["content"] = get_search_message(messages[-1]["content"])
-
- model = json_data.get('model')
- model = model if model else models.default
- patch = patch_provider if json_data.get('patch_provider') else None
-
- return {
- "model": model,
- "provider": provider,
- "messages": messages,
- "stream": True,
- "ignore_stream": True,
- "patch_provider": patch,
- **kwargs
- }
- def _create_response_stream(self, kwargs) -> Generator[str, None, None]:
- """
- Creates and returns a streaming response for the conversation.
+ kwargs = self._prepare_conversation_kwargs(json_data, kwargs)
- Args:
- kwargs (dict): Arguments for creating the chat completion.
+ return self.app.response_class(
+ self._create_response_stream(kwargs, json_data.get("conversation_id")),
+ mimetype='text/event-stream'
+ )
- Yields:
- str: JSON formatted response chunks for the stream.
+ def get_provider_models(self, provider: str):
+ models = super().get_provider_models(provider)
+ if models is None:
+ return 404, "Provider not found"
+ return models
- Raises:
- Exception: If an error occurs during the streaming process.
- """
- try:
- first = True
- for chunk in ChatCompletion.create(**kwargs):
- if first:
- first = False
- yield self._format_json('provider', get_last_provider(True))
- if isinstance(chunk, Exception):
- logging.exception(chunk)
- yield self._format_json('message', get_error_message(chunk))
- else:
- yield self._format_json('content', str(chunk))
- except Exception as e:
- logging.exception(e)
- yield self._format_json('error', get_error_message(e))
-
def _format_json(self, response_type: str, content) -> str:
"""
Formats and returns a JSON response.
@@ -212,19 +106,4 @@ class Backend_Api:
Returns:
str: A JSON formatted string.
"""
- return json.dumps({
- 'type': response_type,
- response_type: content
- }) + "\n"
-
-def get_error_message(exception: Exception) -> str:
- """
- Generates a formatted error message from an exception.
-
- Args:
- exception (Exception): The exception to format.
-
- Returns:
- str: A formatted error message string.
- """
- return f"{get_last_provider().__name__}: {type(exception).__name__}: {exception}" \ No newline at end of file
+ return json.dumps(super()._format_json(response_type, content)) + "\n" \ No newline at end of file