o NK&hz@sddlmZddlmZddlmZmZmZddlm Z ddl m Z ddl m Z ddlmZddlmZdd lmZGd d d Zd S) ) annotations)Optional) BaseRenderer TextRendererexception_response) ServerError) error_logger) RouteHandler)Request)text) HTTPResponsec@speZdZdZefd$ddZd%d&d d Zd'ddZd%d(ddZd%d&ddZ eZ ddZ d)d d!Z e d*d"d#ZdS)+ ErrorHandleraProcess and handle all uncaught exceptions. This error handling framework is built into the core that can be extended by the developers to perform a wide range of tasks from recording the error stats to reporting them to an external service that can be used for realtime alerting system. Args: base (BaseRenderer): The renderer to use for the error pages. basetype[BaseRenderer]cCsi|_d|_||_dS)NF)cached_handlersdebugr)selfrrG/var/www/html/venv/lib/python3.10/site-packages/sanic/handlers/error.py__init__s zErrorHandler.__init__N route_name Optional[str]cCs |||SN)lookup)r exceptionrrrr _full_lookup$s zErrorHandler._full_lookupkey)tuple[type[BaseException], Optional[str]]handlerr returnNonecCsD||jvr|\}}|durd}d|d|}t|||j|<dS)N__ALL_ROUTES__z1Duplicate exception handler definition on: route=z and exception=)rr)rrrexcnamemessagerrr_add's zErrorHandler._add route_namesOptional[list[str]]cCs6|r|D] }|||f|qdS||df|dS)ajAdd a new exception handler to an already existing handler object. Args: exception (sanic.exceptions.SanicException or Exception): Type of exception that needs to be handled. handler (function): Reference to the function that will handle the exception. Returns: None N)r%)rrrr&routerrradd8s  zErrorHandler.addcCst|}|dfD]}||f}|j|}|r|Sq|dfD]+}t|D]#}||f}||jvrC|j|}||j||f<|S|turInq&qd|j||f<d}|S)aLookup the existing instance of `ErrorHandler` and fetch the registered handler for a specific type of exception. This method leverages a dict lookup to speedup the retrieval process. Args: exception (sanic.exceptions.SanicException or Exception): Type of exception. Returns: Registered function if found, ``None`` otherwise. N)typergetmro BaseException)rrrexception_classr# exception_keyrancestorrrrrKs,      zErrorHandler.lookupc Cs|r|jnd}|||}d}z|r|||}|dur$|||}W|SW|Sty`zt|j}Wn ty?d}Ynwd}t||j ||j rYt ||j |fdYSt ddYSw)aFetch and executes an exception handler and returns a response object. Args: request (sanic.request.Request): Instance of the request. exception (sanic.exceptions.SanicException or Exception): Exception to handle. Returns: Wrap the return value obtained from the `default` function or the registered handler for that type of exception. Nunknownz6Exception raised in exception handler "%s" for uri: %siz)An error occurred while handling an error) r#_lookupdefault ExceptionreprurlAttributeErrorrr__name__rr )rrequestrrrresponser6response_messagerrrr:rs0    zErrorHandler.responser9r rr4r cCs,||||jjj}t|||j|j|dS)aProvide a default behavior for the objects of ErrorHandler. If a developer chooses to extend the ErrorHandler, they can provide a custom implementation for this method to behave in a way they see fit. Args: request (sanic.request.Request): Incoming request. exception (sanic.exceptions.SanicException or Exception): Exception object. Returns: HTTPResponse: The response object. Examples: ```python class CustomErrorHandler(ErrorHandler): def default(self, request: Request, exception: Exception) -> HTTPResponse: # Custom logic for handling the exception and creating a response custom_response = my_custom_logic(request, exception) return custom_response app = Sanic("MyApp", error_handler=CustomErrorHandler()) ``` )rrfallback)logappconfigFALLBACK_ERROR_FORMATrrr)rr9rr<rrrr3s  zErrorHandler.defaultcCsft|dd}t|jjdd}|dus|dur1zt|j}Wn ty(d}Ynwtd|dSdS)a(Logs information about an incoming request and the associated exception. Args: request (Request): The incoming request to be logged. exception (Exception): The exception that occurred during the handling of the request. Returns: None quietFNOISY_EXCEPTIONSTr1z)Exception occurred while handling uri: %sN)getattrr>r?r5r6r7rr)r9rrAnoisyr6rrrr=s  zErrorHandler.log)rrr)rr)rrrr rr )r&r')r9r rr4rr )r9r rr4rr )r8 __module__ __qualname____doc__rrrr%r)rr2r:r3 staticmethodr=rrrrr s   % ##r N) __future__rtypingrsanic.errorpagesrrrsanic.exceptionsr sanic.logrsanic.models.handler_typesr sanic.request.typesr sanic.responser sanic.response.typesr r rrrrs