U Zj6@sdZddlZddlmZddlmZddlmZddl m Z ddl m Z dd l mZejr~dd lmZdd lmZdd lmZGd ddeZGdddeZefeeejddddZGdddZGdddZGdddZGdddZGdddZdS)a WSGI Protocol Linter ==================== This module provides a middleware that performs sanity checks on the behavior of the WSGI server and application. It checks that the :pep:`3333` WSGI spec is properly implemented. It also warns on some common HTTP errors such as non-empty responses for 304 status codes. .. autoclass:: LintMiddleware :copyright: 2007 Pallets :license: BSD-3-Clause N) TracebackType)urlparse)warn)Headers)is_entity_header) FileWrapper) StartResponse)WSGIApplication)WSGIEnvironmentc@seZdZdZdS) WSGIWarningz Warning class for WSGI warnings.N__name__ __module__ __qualname____doc__rr[/var/www/html/TRUCKING_PROJECT/venv/lib/python3.8/site-packages/werkzeug/middleware/lint.pyr sr c@seZdZdZdS) HTTPWarningz Warning class for HTTP warnings.Nr rrrrr"sr)contextobjneedreturncCs8t||k r4t|d|jdt|jdtdddS)Nz requires z, got . stacklevel)typerrr )rrrrrr check_type&s  rc@sheZdZejeddddZejedddZejeddd Z ej ed d d Z dd d dZ dS) InputStreamNstreamrcCs ||_dSN_streamselfr!rrr__init__0szInputStream.__init__)argsrcGsBt|dkrtdtddnt|dkr6tdtdd|jj|S)NrzWSGI does not guarantee an EOF marker on the input stream, thus making calls to 'wsgi.input.read()' unsafe. 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Valid status strings are three digits, a space and a status explanation.rXzStatus code < 100 detected.zHeader list is not a list.rz#Header items must be 2-item tuples.z'Header keys and values must be strings.zFThe status header is not supported due to conflicts with the CGI spec.zInvalid value for exc_info.)rr=splitr* isdecimalrr rNrlisttupler^ isinstancer check_headers) r&rtr`ruZstatus_code_strr_itemnamevaluerrrcheck_start_responsesH     z#LintMiddleware.check_start_response)r`rcCs|d}|dk rt|dr@|dr4tdtdd|dd}|dd|d dkrdd kstntd tdd|d }|dk rt|jstd tdddS)Netag)zW/w/rz)Weak etag indicator should be upper case.rjrrr)"zUnquoted etag emitted.locationz+Absolute URLs required for location header.)r] startswithrrrnetloc)r&r`rrrrrr|Ns(    &  zLintMiddleware.check_headers)app_iterrcCst|trtdtdddS)NzThe application returned a bytestring. The response will send one character at a time to the client, which will kill performance. 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