__init__.py 文件源码

def create_web_app(configuration: UchanConfiguration, app):
    if configuration.http.use_proxy_fixer:
        app.wsgi_app = ProxyFix(app.wsgi_app, configuration.http.proxy_fixer_num_proxies)

    app.config['DEBUG'] = configuration.app.debug
    app.config['APP_NAME'] = configuration.app.name
    app.config['MAX_CONTENT_LENGTH'] = configuration.http.max_content_length

    app.jinja_env.trim_blocks = True
    app.jinja_env.lstrip_blocks = True

    import uchan.view.routing.converters
    uchan.view.routing.converters.init_converters(app)

    from uchan import logger
    from uchan.lib.exceptions import BadRequestError

    # Setup error handlers
    @app.errorhandler(500)
    def server_error_handler(error):
        logger.exception(error)
        return app.send_static_file('500.html'), 500

    @app.errorhandler(404)
    def server_error_handler(error):
        return app.send_static_file('404.html'), 404

    def bad_request_message(e):
        if isinstance(e, BadRequestError):
            while isinstance(e, Exception) and len(e.args) > 0:
                e = e.args[0]

        return e if type(e) is str else ''

    from uchan.view import render_error

    @app.errorhandler(BadRequestError)
    def bad_request_handler(error):
        user_message = bad_request_message(error)

        return render_error(user_message, 400)

    from uchan.lib.action_authorizer import NoPermissionError

    @app.errorhandler(NoPermissionError)
    def no_permission_handler(error):
        return render_error('No permission', 401)

    from uchan.lib.service import verification_service

    @app.after_request
    def after_request_handler(response):
        verification_service.after_request(response)
        return response

    return app