mirror of
https://gitee.com/dify_ai/dify.git
synced 2024-12-05 20:57:46 +08:00
313 lines
8.5 KiB
Python
313 lines
8.5 KiB
Python
import os
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if os.environ.get("DEBUG", "false").lower() != "true":
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from gevent import monkey
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monkey.patch_all()
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import grpc.experimental.gevent
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grpc.experimental.gevent.init_gevent()
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import json
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import logging
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import sys
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import threading
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import time
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import warnings
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from logging.handlers import RotatingFileHandler
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from flask import Flask, Response, request
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from flask_cors import CORS
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from werkzeug.exceptions import Unauthorized
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import contexts
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from commands import register_commands
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from configs import dify_config
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# DO NOT REMOVE BELOW
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from events import event_handlers # noqa: F401
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from extensions import (
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ext_celery,
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ext_code_based_extension,
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ext_compress,
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ext_database,
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ext_hosting_provider,
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ext_login,
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ext_mail,
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ext_migrate,
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ext_proxy_fix,
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ext_redis,
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ext_sentry,
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ext_storage,
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)
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from extensions.ext_database import db
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from extensions.ext_login import login_manager
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from libs.passport import PassportService
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# TODO: Find a way to avoid importing models here
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from models import account, dataset, model, source, task, tool, tools, web # noqa: F401
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from services.account_service import AccountService
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# DO NOT REMOVE ABOVE
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warnings.simplefilter("ignore", ResourceWarning)
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os.environ["TZ"] = "UTC"
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# windows platform not support tzset
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if hasattr(time, "tzset"):
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time.tzset()
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class DifyApp(Flask):
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pass
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# -------------
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# Configuration
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# -------------
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config_type = os.getenv("EDITION", default="SELF_HOSTED") # ce edition first
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# ----------------------------
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# Application Factory Function
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# ----------------------------
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def create_flask_app_with_configs() -> Flask:
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"""
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create a raw flask app
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with configs loaded from .env file
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"""
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dify_app = DifyApp(__name__)
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dify_app.config.from_mapping(dify_config.model_dump())
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# populate configs into system environment variables
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for key, value in dify_app.config.items():
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if isinstance(value, str):
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os.environ[key] = value
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elif isinstance(value, int | float | bool):
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os.environ[key] = str(value)
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elif value is None:
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os.environ[key] = ""
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return dify_app
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def create_app() -> Flask:
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app = create_flask_app_with_configs()
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app.secret_key = app.config["SECRET_KEY"]
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log_handlers = None
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log_file = app.config.get("LOG_FILE")
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if log_file:
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log_dir = os.path.dirname(log_file)
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os.makedirs(log_dir, exist_ok=True)
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log_handlers = [
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RotatingFileHandler(
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filename=log_file,
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maxBytes=1024 * 1024 * 1024,
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backupCount=5,
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),
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logging.StreamHandler(sys.stdout),
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]
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logging.basicConfig(
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level=app.config.get("LOG_LEVEL"),
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format=app.config.get("LOG_FORMAT"),
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datefmt=app.config.get("LOG_DATEFORMAT"),
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handlers=log_handlers,
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force=True,
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)
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log_tz = app.config.get("LOG_TZ")
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if log_tz:
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from datetime import datetime
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import pytz
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timezone = pytz.timezone(log_tz)
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def time_converter(seconds):
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return datetime.utcfromtimestamp(seconds).astimezone(timezone).timetuple()
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for handler in logging.root.handlers:
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handler.formatter.converter = time_converter
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initialize_extensions(app)
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register_blueprints(app)
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register_commands(app)
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return app
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def initialize_extensions(app):
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# Since the application instance is now created, pass it to each Flask
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# extension instance to bind it to the Flask application instance (app)
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ext_compress.init_app(app)
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ext_code_based_extension.init()
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ext_database.init_app(app)
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ext_migrate.init(app, db)
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ext_redis.init_app(app)
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ext_storage.init_app(app)
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ext_celery.init_app(app)
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ext_login.init_app(app)
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ext_mail.init_app(app)
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ext_hosting_provider.init_app(app)
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ext_sentry.init_app(app)
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ext_proxy_fix.init_app(app)
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# Flask-Login configuration
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@login_manager.request_loader
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def load_user_from_request(request_from_flask_login):
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"""Load user based on the request."""
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if request.blueprint not in {"console", "inner_api"}:
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return None
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# Check if the user_id contains a dot, indicating the old format
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auth_header = request.headers.get("Authorization", "")
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if not auth_header:
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auth_token = request.args.get("_token")
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if not auth_token:
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raise Unauthorized("Invalid Authorization token.")
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else:
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if " " not in auth_header:
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raise Unauthorized("Invalid Authorization header format. Expected 'Bearer <api-key>' format.")
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auth_scheme, auth_token = auth_header.split(None, 1)
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auth_scheme = auth_scheme.lower()
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if auth_scheme != "bearer":
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raise Unauthorized("Invalid Authorization header format. Expected 'Bearer <api-key>' format.")
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decoded = PassportService().verify(auth_token)
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user_id = decoded.get("user_id")
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logged_in_account = AccountService.load_logged_in_account(account_id=user_id, token=auth_token)
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if logged_in_account:
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contexts.tenant_id.set(logged_in_account.current_tenant_id)
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return logged_in_account
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@login_manager.unauthorized_handler
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def unauthorized_handler():
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"""Handle unauthorized requests."""
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return Response(
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json.dumps({"code": "unauthorized", "message": "Unauthorized."}),
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status=401,
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content_type="application/json",
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)
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# register blueprint routers
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def register_blueprints(app):
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from controllers.console import bp as console_app_bp
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from controllers.files import bp as files_bp
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from controllers.inner_api import bp as inner_api_bp
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from controllers.service_api import bp as service_api_bp
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from controllers.web import bp as web_bp
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CORS(
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service_api_bp,
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allow_headers=["Content-Type", "Authorization", "X-App-Code"],
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methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
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)
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app.register_blueprint(service_api_bp)
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CORS(
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web_bp,
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resources={r"/*": {"origins": app.config["WEB_API_CORS_ALLOW_ORIGINS"]}},
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supports_credentials=True,
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allow_headers=["Content-Type", "Authorization", "X-App-Code"],
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methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
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expose_headers=["X-Version", "X-Env"],
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)
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app.register_blueprint(web_bp)
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CORS(
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console_app_bp,
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resources={r"/*": {"origins": app.config["CONSOLE_CORS_ALLOW_ORIGINS"]}},
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supports_credentials=True,
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allow_headers=["Content-Type", "Authorization"],
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methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
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expose_headers=["X-Version", "X-Env"],
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)
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app.register_blueprint(console_app_bp)
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CORS(files_bp, allow_headers=["Content-Type"], methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"])
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app.register_blueprint(files_bp)
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app.register_blueprint(inner_api_bp)
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# create app
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app = create_app()
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celery = app.extensions["celery"]
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if app.config.get("TESTING"):
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print("App is running in TESTING mode")
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@app.after_request
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def after_request(response):
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"""Add Version headers to the response."""
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response.set_cookie("remember_token", "", expires=0)
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response.headers.add("X-Version", app.config["CURRENT_VERSION"])
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response.headers.add("X-Env", app.config["DEPLOY_ENV"])
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return response
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@app.route("/health")
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def health():
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return Response(
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json.dumps({"pid": os.getpid(), "status": "ok", "version": app.config["CURRENT_VERSION"]}),
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status=200,
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content_type="application/json",
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)
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@app.route("/threads")
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def threads():
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num_threads = threading.active_count()
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threads = threading.enumerate()
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thread_list = []
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for thread in threads:
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thread_name = thread.name
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thread_id = thread.ident
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is_alive = thread.is_alive()
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thread_list.append(
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{
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"name": thread_name,
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"id": thread_id,
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"is_alive": is_alive,
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}
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)
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return {
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"pid": os.getpid(),
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"thread_num": num_threads,
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"threads": thread_list,
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}
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@app.route("/db-pool-stat")
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def pool_stat():
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engine = db.engine
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return {
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"pid": os.getpid(),
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"pool_size": engine.pool.size(),
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"checked_in_connections": engine.pool.checkedin(),
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"checked_out_connections": engine.pool.checkedout(),
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"overflow_connections": engine.pool.overflow(),
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"connection_timeout": engine.pool.timeout(),
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"recycle_time": db.engine.pool._recycle,
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}
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if __name__ == "__main__":
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app.run(host="0.0.0.0", port=5001)
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