Rewrite to Quart web-framework, refactor code.

yellow/factory.py

@@ -0,0 +1,80 @@
+import os
+import logging
+import asyncio
+
+from quart import Quart, url_for, jsonify, render_template, session
+from quart_session_openid import OpenID
+from quart_session import Session
+import settings
+
+
+app: Quart = None
+peewee = None
+cache = None
+openid: OpenID = None
+
+
+async def _setup_database(app: Quart):
+    import peewee
+    import yellow.models
+    models = peewee.Model.__subclasses__()
+    for m in models:
+        m.create_table()
+
+
+async def _setup_openid(app: Quart):
+    global openid
+    openid = OpenID(app, **settings.OPENID_CFG)
+    from yellow.auth import handle_user_login
+
+
+async def _setup_cache(app: Quart):
+    global cache
+    app.config['SESSION_TYPE'] = 'redis'
+    app.config['SESSION_URI'] = settings.REDIS_URI
+    Session(app)
+
+
+async def _setup_error_handlers(app: Quart):
+    @app.errorhandler(500)
+    async def page_error(e):
+        return await render_template('error.html', code=500, msg="Error occurred"), 500
+
+    @app.errorhandler(403)
+    async def page_forbidden(e):
+        return await render_template('error.html', code=403, msg="Forbidden"), 403
+
+    @app.errorhandler(404)
+    async def page_not_found(e):
+        return await render_template('error.html', code=404, msg="Page not found"), 404
+
+
+def create_app():
+    global app
+    app = Quart(__name__)
+
+    app.logger.setLevel(logging.INFO)
+    app.secret_key = settings.APP_SECRET
+
+    @app.context_processor
+    def template_variables():
+        global openid
+        from yellow.models import User
+        current_user = session.get('user')
+        if current_user:
+            current_user = User(**current_user)
+        return dict(user=current_user, url_login=openid.endpoint_name_login)
+
+    @app.before_serving
+    async def startup():
+        await _setup_cache(app)
+        await _setup_openid(app)
+        await _setup_database(app)
+        await _setup_error_handlers(app)
+
+        from yellow.routes import bp_routes
+        from yellow.api import bp_api
+        app.register_blueprint(bp_routes)
+        app.register_blueprint(bp_api)
+
+    return app