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Editing: validate.cpython-33.pyc
� �� f/; c @ sN d Z d g Z d d l Z d d l Z d d l Z e j d � Z e j d � Z Gd d � d e � Z d d � Z d d � Z d d � Z Gd d � d � Z Gd d � d � Z Gd d � d � Z Gd d � d � Z Gd d � d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d! d" � Z d# d$ � Z d% d& � Z d S(' u& Middleware to check for obedience to the WSGI specification. Some of the things this checks: * Signature of the application and start_response (including that keyword arguments are not used). * Environment checks: - Environment is a dictionary (and not a subclass). - That all the required keys are in the environment: REQUEST_METHOD, SERVER_NAME, SERVER_PORT, wsgi.version, wsgi.input, wsgi.errors, wsgi.multithread, wsgi.multiprocess, wsgi.run_once - That HTTP_CONTENT_TYPE and HTTP_CONTENT_LENGTH are not in the environment (these headers should appear as CONTENT_LENGTH and CONTENT_TYPE). - Warns if QUERY_STRING is missing, as the cgi module acts unpredictably in that case. - That CGI-style variables (that don't contain a .) have (non-unicode) string values - That wsgi.version is a tuple - That wsgi.url_scheme is 'http' or 'https' (@@: is this too restrictive?) - Warns if the REQUEST_METHOD is not known (@@: probably too restrictive). - That SCRIPT_NAME and PATH_INFO are empty or start with / - That at least one of SCRIPT_NAME or PATH_INFO are set. - That CONTENT_LENGTH is a positive integer. - That SCRIPT_NAME is not '/' (it should be '', and PATH_INFO should be '/'). - That wsgi.input has the methods read, readline, readlines, and __iter__ - That wsgi.errors has the methods flush, write, writelines * The status is a string, contains a space, starts with an integer, and that integer is in range (> 100). * That the headers is a list (not a subclass, not another kind of sequence). * That the items of the headers are tuples of strings. * That there is no 'status' header (that is used in CGI, but not in WSGI). * That the headers don't contain newlines or colons, end in _ or -, or contain characters codes below 037. * That Content-Type is given if there is content (CGI often has a default content type, but WSGI does not). * That no Content-Type is given when there is no content (@@: is this too restrictive?) * That the exc_info argument to start_response is a tuple or None. * That all calls to the writer are with strings, and no other methods on the writer are accessed. * That wsgi.input is used properly: - .read() is called with zero or one argument - That it returns a string - That readline, readlines, and __iter__ return strings - That .close() is not called - No other methods are provided * That wsgi.errors is used properly: - .write() and .writelines() is called with a string - That .close() is not called, and no other methods are provided. * The response iterator: - That it is not a string (it should be a list of a single string; a string will work, but perform horribly). - That .__next__() returns a string - That the iterator is not iterated over until start_response has been called (that can signal either a server or application error). - That .close() is called (doesn't raise exception, only prints to sys.stderr, because we only know it isn't called when the object is garbage collected). u validatori Nu ^[a-zA-Z][a-zA-Z0-9\-_]*$u [\000-\037]c B s | Ee Z d Z d Z d S( u WSGIWarningu: Raised in response to WSGI-spec-related warnings N( u __name__u __module__u __qualname__u __doc__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu WSGIWarningy s u WSGIWarningc G s | s t | � � n d S( N( u AssertionError( u condu args( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu assert_~ s u assert_c C s8 t | � t k r | St d j | t | � � � � d S( Nu! {0} must be of type str (got {1})( u typeu stru AssertionErroru formatu repr( u valueu title( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_string_type� s u check_string_typec s � f d d � } | S( u� When applied between a WSGI server and a WSGI application, this middleware will check for WSGI compliancy on a number of levels. This middleware does not modify the request or response in any way, but will raise an AssertionError if anything seems off (except for a failure to close the application iterator, which will be printed to stderr -- there's no way to raise an exception at that point). c s� t t | � d k d � t | d � | \ } � t | � g � � � f d d � } t | d � | d <t | d � | d <� | | � } t | d k o� | d k d � t | � t | � � S( Ni u Two arguments requiredu No keyword arguments allowedc s� t t | � d k p$ t | � d k d | f � t | d � | d } | d } t | � d k rs | d } n d } t | � t | � t | | � t | � � j d � t � | � � S( Ni i u Invalid number of arguments: %su No keyword arguments allowedi i ( u assert_u lenu Noneu check_statusu check_headersu check_content_typeu check_exc_infou appendu WriteWrapper( u argsu kwu statusu headersu exc_info( u start_responseu start_response_started( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu start_response_wrapper� s $ u; validator.<locals>.lint_app.<locals>.start_response_wrapperu wsgi.inputu wsgi.errorsu> The application must return an iterator, if only an empty listF( u assert_u lenu check_environu InputWrapperu ErrorWrapperu Noneu Falseu check_iteratoru IteratorWrapper( u argsu kwu environu start_response_wrapperu iterator( u application( u start_responseu start_response_startedu5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu lint_app� s u validator.<locals>.lint_app( ( u applicationu lint_app( ( u applicationu5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu validator� s )c B s\ | Ee Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S( u InputWrapperc C s | | _ d S( N( u input( u selfu wsgi_input( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __init__� s u InputWrapper.__init__c G sB t t | � d k � | j j | � } t t | � t k � | S( Ni ( u assert_u lenu inputu readu typeu bytes( u selfu argsu v( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu read� s u InputWrapper.readc G sB t t | � d k � | j j | � } t t | � t k � | S( Ni ( u assert_u lenu inputu readlineu typeu bytes( u selfu argsu v( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu readline� s u InputWrapper.readlinec G si t t | � d k � | j j | � } t t | � t k � x$ | D] } t t | � t k � qE W| S( Ni ( u assert_u lenu inputu readlinesu typeu listu bytes( u selfu argsu linesu line( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu readlines� s u InputWrapper.readlinesc c s% x | j � } | s d S| Vq d S( N( u readline( u selfu line( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __iter__� s u InputWrapper.__iter__c C s t d d � d S( Ni u input.close() must not be called( u assert_( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu close� s u InputWrapper.closeN( u __name__u __module__u __qualname__u __init__u readu readlineu readlinesu __iter__u close( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu InputWrapper� s u InputWrapperc B sP | Ee Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d S( u ErrorWrapperc C s | | _ d S( N( u errors( u selfu wsgi_errors( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __init__� s u ErrorWrapper.__init__c C s* t t | � t k � | j j | � d S( N( u assert_u typeu stru errorsu write( u selfu s( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu write� s u ErrorWrapper.writec C s | j j � d S( N( u errorsu flush( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu flush� s u ErrorWrapper.flushc C s" x | D] } | j | � q Wd S( N( u write( u selfu sequ line( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu writelines� s u ErrorWrapper.writelinesc C s t d d � d S( Ni u! errors.close() must not be called( u assert_( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu close� s u ErrorWrapper.closeN( u __name__u __module__u __qualname__u __init__u writeu flushu writelinesu close( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu ErrorWrapper� s u ErrorWrapperc B s, | Ee Z d Z d d � Z d d � Z d S( u WriteWrapperc C s | | _ d S( N( u writer( u selfu wsgi_writer( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __init__� s u WriteWrapper.__init__c C s' t t | � t k � | j | � d S( N( u assert_u typeu bytesu writer( u selfu s( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __call__� s u WriteWrapper.__call__N( u __name__u __module__u __qualname__u __init__u __call__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu WriteWrapper� s u WriteWrapperc B s, | Ee Z d Z d d � Z d d � Z d S( u PartialIteratorWrapperc C s | | _ d S( N( u iterator( u selfu wsgi_iterator( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __init__ s u PartialIteratorWrapper.__init__c C s t | j d � S( N( u IteratorWrapperu iteratoru None( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __iter__ s u PartialIteratorWrapper.__iter__N( u __name__u __module__u __qualname__u __init__u __iter__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu PartialIteratorWrapper� s u PartialIteratorWrapperc B sP | Ee Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d S( u IteratorWrapperc C s. | | _ t | � | _ d | _ | | _ d S( NF( u original_iteratoru iteru iteratoru Falseu closedu check_start_response( u selfu wsgi_iteratoru check_start_response( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __init__ s u IteratorWrapper.__init__c C s | S( N( ( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __iter__ s u IteratorWrapper.__iter__c C sx t | j d � t | j � } t | � t k rI t d d | f � n | j d k rt t | j d � d | _ n | S( Nu Iterator read after closedu$ Iterator yielded non-bytestring (%r)uj The application returns and we started iterating over its body, but start_response has not yet been calledF( u assert_u closedu nextu iteratoru typeu bytesu Falseu check_start_responseu None( u selfu v( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __next__ s u IteratorWrapper.__next__c C s/ d | _ t | j d � r+ | j j � n d S( Nu closeT( u Trueu closedu hasattru original_iteratoru close( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu close s u IteratorWrapper.closec C s0 | j s t j j d � n t | j d � d S( Nu/ Iterator garbage collected without being closed( u closedu sysu stderru writeu assert_( u self( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu __del__# s u IteratorWrapper.__del__N( u __name__u __module__u __qualname__u __init__u __iter__u __next__u closeu __del__( u __locals__( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu IteratorWrapper s u IteratorWrapperc C s� t t | � t k d t | � | f � xC d d d d d d d d d g D] } t | | k d | f � qK Wx; d d g D]- } t | | k d | | d d � f � q| Wd | k r� t j d t � n x^ | j � D]P } d | k r� q� n t t | | � t k d | t | | � | | f � q� Wt t | d � t k d | d f � t | d d+ k d | d � t | d � t | d � | d d, k r�t j d | d t � n t | j d! � p�| d! j d" � d# | d! � t | j d$ � p| d$ j d" � d% | d$ � | j d& � rVt t | d& � d' k d( | d& � n | j d! � s{t d$ | k d) � n t | j d! � d" k d* � d S(- Nu: Environment is not of the right type: %r (environment: %r)u REQUEST_METHODu SERVER_NAMEu SERVER_PORTu wsgi.versionu wsgi.inputu wsgi.errorsu wsgi.multithreadu wsgi.multiprocessu wsgi.run_onceu$ Environment missing required key: %ru HTTP_CONTENT_TYPEu HTTP_CONTENT_LENGTHu8 Environment should not have the key: %s (use %s instead)i u QUERY_STRINGu� QUERY_STRING is not in the WSGI environment; the cgi module will use sys.argv when this variable is missing, so application errors are more likelyu .u9 Environmental variable %s is not a string: %r (value: %r)u# wsgi.version should be a tuple (%r)u wsgi.url_schemeu httpu httpsu wsgi.url_scheme unknown: %ru GETu HEADu POSTu OPTIONSu PUTu DELETEu TRACEu Unknown REQUEST_METHOD: %ru SCRIPT_NAMEu /u$ SCRIPT_NAME doesn't start with /: %ru PATH_INFOu" PATH_INFO doesn't start with /: %ru CONTENT_LENGTHi u Invalid CONTENT_LENGTH: %rug One of SCRIPT_NAME or PATH_INFO are required (PATH_INFO should at least be '/' if SCRIPT_NAME is empty)uO SCRIPT_NAME cannot be '/'; it should instead be '', and PATH_INFO should be '/'( u httpu https( u GETu HEADu POSTu OPTIONSu PUTu DELETEu TRACE( u assert_u typeu dictu warningsu warnu WSGIWarningu keysu stru tupleu check_inputu check_errorsu getu startswithu int( u environu key( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_environ* s` # u check_environc C sA x: d d d d g D]& } t t | | � d | | f � q Wd S( Nu readu readlineu readlinesu __iter__u- wsgi.input (%r) doesn't have the attribute %s( u assert_u hasattr( u wsgi_inputu attr( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_inputk s u check_inputc C s> x7 d d d g D]& } t t | | � d | | f � q Wd S( Nu flushu writeu writelinesu. wsgi.errors (%r) doesn't have the attribute %s( u assert_u hasattr( u wsgi_errorsu attr( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_errorsq s u check_errorsc C s� t | d � } | j d d � d } t t | � d k d | � t | � } t | d k d | � t | � d k s� | d d k r� t j d | t � n d S( Nu Statusi i i u) Status codes must be three characters: %rid u Status code is invalid: %ri u uj The status string (%r) should be a three-digit integer followed by a single space and a status explanation( u check_string_typeu splitu Noneu assert_u lenu intu warningsu warnu WSGIWarning( u statusu status_codeu status_int( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_statusw s "u check_statusc C s} t t | � t k d | t | � f � i } xG| D]?} t t | � t k d | t | � f � t t | � d k � | \ } } t | d � } t | d � } t | j � d k d | � d | | j � <t d | k o� d | k d | � t t j | � d | � t | j d � o/| j d � d | � t j | � r6 t d d | t j | � j d � f � q6 q6 Wd S( Nu% Headers (%r) must be of type list: %ru1 Individual headers (%r) must be of type tuple: %ri u Header nameu Header valueu statusuy The Status header cannot be used; it conflicts with CGI script, and HTTP status is not given through headers (value: %r).u u :u, Header names may not contain ':' or '\n': %ru Bad header name: %ru -u _u# Names may not end in '-' or '_': %ri u# Bad header value: %r (bad char: %r)( u assert_u typeu listu tupleu lenu check_string_typeu loweru Noneu header_reu searchu endswithu bad_header_value_reu group( u headersu header_namesu itemu nameu value( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_headers� s0 u check_headersc C s� t | d � } t | j d d � d � } d } xY | D]Q \ } } t | d � } | j � d k r8 | | k ru d St d d | � q8 q8 W| | k r� t d d | � n d S( Nu Statusi i i� i0 u Header nameu content-typeuJ Content-Type header found in a %s response, which must not return content.u, No Content-Type header found in headers (%s)( i� i0 ( u check_string_typeu intu splitu Noneu loweru assert_( u statusu headersu codeu NO_MESSAGE_BODYu nameu value( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_content_type� s u check_content_typec C s9 t | d k p t | � t k d | t | � f � d S( Nu exc_info (%r) is not a tuple: %r( u assert_u Noneu typeu tuple( u exc_info( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_exc_info� s u check_exc_infoc C s! t t | t t f � d � d S( Nuw You should not return a string as your application iterator, instead return a single-item list containing a bytestring.( u assert_u isinstanceu stru bytes( u iterator( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu check_iterator� s u check_iterator( u __doc__u __all__u reu sysu warningsu compileu header_reu bad_header_value_reu Warningu WSGIWarningu assert_u check_string_typeu validatoru InputWrapperu ErrorWrapperu WriteWrapperu PartialIteratorWrapperu IteratorWrapperu check_environu check_inputu check_errorsu check_statusu check_headersu check_content_typeu check_exc_infou check_iterator( ( ( u5 /opt/alt/python33/lib64/python3.3/wsgiref/validate.pyu <module>n s. 7# # A
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