dify/api/core/plugin/manager/base.py
2024-09-24 16:02:01 +08:00

138 lines
4.5 KiB
Python

import json
from collections.abc import Callable, Generator
from typing import TypeVar
import requests
from pydantic import BaseModel
from yarl import URL
from configs import dify_config
from core.plugin.entities.plugin_daemon import PluginDaemonBasicResponse
plugin_daemon_inner_api_baseurl = dify_config.PLUGIN_API_URL
plugin_daemon_inner_api_key = dify_config.PLUGIN_API_KEY
T = TypeVar("T", bound=(BaseModel | dict | list | bool))
class BasePluginManager:
def _request(
self,
method: str,
path: str,
headers: dict | None = None,
data: bytes | dict | str | None = None,
params: dict | None = None,
stream: bool = False,
) -> requests.Response:
"""
Make a request to the plugin daemon inner API.
"""
url = URL(str(plugin_daemon_inner_api_baseurl)) / path
headers = headers or {}
headers["X-Api-Key"] = plugin_daemon_inner_api_key
if headers.get("Content-Type") == "application/json" and isinstance(data, dict):
data = json.dumps(data)
response = requests.request(
method=method, url=str(url), headers=headers, data=data, params=params, stream=stream
)
return response
def _stream_request(
self,
method: str,
path: str,
params: dict | None = None,
headers: dict | None = None,
data: bytes | dict | None = None,
) -> Generator[bytes, None, None]:
"""
Make a stream request to the plugin daemon inner API
"""
response = self._request(method, path, headers, data, params, stream=True)
for line in response.iter_lines():
line = line.decode("utf-8").strip()
if line.startswith("data:"):
line = line[5:].strip()
if line:
yield line
def _stream_request_with_model(
self,
method: str,
path: str,
type: type[T],
headers: dict | None = None,
data: bytes | dict | None = None,
params: dict | None = None,
) -> Generator[T, None, None]:
"""
Make a stream request to the plugin daemon inner API and yield the response as a model.
"""
for line in self._stream_request(method, path, params, headers, data):
yield type(**json.loads(line))
def _request_with_model(
self,
method: str,
path: str,
type: type[T],
headers: dict | None = None,
data: bytes | None = None,
params: dict | None = None,
) -> T:
"""
Make a request to the plugin daemon inner API and return the response as a model.
"""
response = self._request(method, path, headers, data, params)
return type(**response.json())
def _request_with_plugin_daemon_response(
self,
method: str,
path: str,
type: type[T],
headers: dict | None = None,
data: bytes | dict | None = None,
params: dict | None = None,
transformer: Callable[[dict], dict] | None = None,
) -> T:
"""
Make a request to the plugin daemon inner API and return the response as a model.
"""
response = self._request(method, path, headers, data, params)
json_response = response.json()
if transformer:
json_response = transformer(json_response)
rep = PluginDaemonBasicResponse[type](**json_response)
if rep.code != 0:
raise ValueError(f"got error from plugin daemon: {rep.message}, code: {rep.code}")
if rep.data is None:
raise ValueError("got empty data from plugin daemon")
return rep.data
def _request_with_plugin_daemon_response_stream(
self,
method: str,
path: str,
type: type[T],
headers: dict | None = None,
data: bytes | dict | None = None,
params: dict | None = None,
) -> Generator[T, None, None]:
"""
Make a stream request to the plugin daemon inner API and yield the response as a model.
"""
for line in self._stream_request(method, path, params, headers, data):
line_data = json.loads(line)
rep = PluginDaemonBasicResponse[type](**line_data)
if rep.code != 0:
raise ValueError(f"got error from plugin daemon: {rep.message}, code: {rep.code}")
if rep.data is None:
raise ValueError("got empty data from plugin daemon")
yield rep.data