AlkantarClanX12

Your IP : 18.191.129.241

Current Path : /opt/alt/python37/lib64/python3.7/wsgiref/__pycache__/
Upload File :
Current File : //opt/alt/python37/lib64/python3.7/wsgiref/__pycache__/validate.cpython-37.opt-1.pyc

B

� f�:�@s�dZdgZddlZddlZddlZe�d�Ze�d�ZGdd�de�Z	dd	�Z
d
d�Zdd�ZGd
d�d�Z
Gdd�d�ZGdd�d�ZGdd�d�ZGdd�d�Zdd�Zdd�Zdd�Zdd�Zdd �Zd!d"�Zd#d$�Zd%d&�ZdS)'a&
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).
�	validator�Nz^[a-zA-Z][a-zA-Z0-9\-_]*$z[\000-\037]c@seZdZdZdS)�WSGIWarningz:
    Raised in response to WSGI-spec-related warnings
    N)�__name__�
__module__�__qualname__�__doc__�rr�5/opt/alt/python37/lib64/python3.7/wsgiref/validate.pyrysrcGs|st|��dS)N)�AssertionError)Zcond�argsrrr	�assert_~srcCs(t|�tkr|Std�|t|����dS)Nz!{0} must be of type str (got {1}))�type�strr
�format�repr)�value�titlerrr	�check_string_type�srcs�fdd�}|S)a�
    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).
    cs�tt|�dkd�t|d�|\}�t|�g���fdd�}t|d�|d<t|d�|d<�||�}t|dk	oz|dkd	�t|�t|��S)
N�zTwo arguments requiredzNo keyword arguments allowedcs�tt|�dkpt|�dkd|f�t|d�|d}|d}t|�dkrV|d}nd}t|�t|�t||�t|���d�t�|��S)Nr�zInvalid number of arguments: %szNo keyword arguments allowedr�)r�len�check_status�
check_headers�check_content_type�check_exc_info�append�WriteWrapper)r�kw�status�headers�exc_info)�start_response�start_response_startedrr	�start_response_wrapper�s


z;validator.<locals>.lint_app.<locals>.start_response_wrapperz
wsgi.inputzwsgi.errorsFz>The application must return an iterator, if only an empty list)rr�
check_environ�InputWrapper�ErrorWrapper�check_iterator�IteratorWrapper)rr�environr$�iterator)�application)r"r#r	�lint_app�s
zvalidator.<locals>.lint_appr)r,r-r)r,r	r�s)c@s<eZdZdd�Zdd�Zdd�Zdd�Zd	d
�Zdd�Zd
S)r&cCs
||_dS)N)�input)�self�
wsgi_inputrrr	�__init__�szInputWrapper.__init__cGs0tt|�dk�|jj|�}tt|�tk�|S)Nr)rrr.�readr
�bytes)r/r�vrrr	r2�szInputWrapper.readcGs0tt|�dk�|jj|�}tt|�tk�|S)Nr)rrr.�readliner
r3)r/rr4rrr	r5�szInputWrapper.readlinecGsNtt|�dk�|jj|�}tt|�tk�x|D]}tt|�tk�q2W|S)Nr)rrr.�	readlinesr
�listr3)r/r�lines�linerrr	r6�s
zInputWrapper.readlinesccs x|��}|sdS|VqWdS)N)r5)r/r9rrr	�__iter__�s
zInputWrapper.__iter__cCstdd�dS)Nrz input.close() must not be called)r)r/rrr	�close�szInputWrapper.closeN)	rrrr1r2r5r6r:r;rrrr	r&�sr&c@s4eZdZdd�Zdd�Zdd�Zdd�Zd	d
�ZdS)r'cCs
||_dS)N)�errors)r/�wsgi_errorsrrr	r1�szErrorWrapper.__init__cCs tt|�tk�|j�|�dS)N)rr
rr<�write)r/�srrr	r>�szErrorWrapper.writecCs|j��dS)N)r<�flush)r/rrr	r@�szErrorWrapper.flushcCsx|D]}|�|�qWdS)N)r>)r/�seqr9rrr	�
writelines�s
zErrorWrapper.writelinescCstdd�dS)Nrz!errors.close() must not be called)r)r/rrr	r;�szErrorWrapper.closeN)rrrr1r>r@rBr;rrrr	r'�s
r'c@seZdZdd�Zdd�ZdS)rcCs
||_dS)N)�writer)r/Zwsgi_writerrrr	r1�szWriteWrapper.__init__cCstt|�tk�|�|�dS)N)rr
r3rC)r/r?rrr	�__call__�szWriteWrapper.__call__N)rrrr1rDrrrr	r�src@seZdZdd�Zdd�ZdS)�PartialIteratorWrappercCs
||_dS)N)r+)r/�
wsgi_iteratorrrr	r1szPartialIteratorWrapper.__init__cCst|jd�S)N)r)r+)r/rrr	r:szPartialIteratorWrapper.__iter__N)rrrr1r:rrrr	rE�srEc@s4eZdZdd�Zdd�Zdd�Zdd�Zd	d
�ZdS)r)cCs ||_t|�|_d|_||_dS)NF)�original_iterator�iterr+�closed�check_start_response)r/rFrJrrr	r1	s
zIteratorWrapper.__init__cCs|S)Nr)r/rrr	r:szIteratorWrapper.__iter__cCsTt|jd�t|j�}t|�tk	r4tdd|f�|jdk	rPt|jd�d|_|S)NzIterator read after closedFz$Iterator yielded non-bytestring (%r)zjThe application returns and we started iterating over its body, but start_response has not yet been called)rrI�nextr+r
r3rJ)r/r4rrr	�__next__s

zIteratorWrapper.__next__cCs d|_t|jd�r|j��dS)NTr;)rI�hasattrrGr;)r/rrr	r;szIteratorWrapper.closecCs"|jstj�d�t|jd�dS)Nz/Iterator garbage collected without being closed)rI�sys�stderrr>r)r/rrr	�__del__#s
zIteratorWrapper.__del__N)rrrr1r:rLr;rPrrrr	r)s
r)cCs�tt|�tkdt|�|f�x dD]}t||kd|f�q$Wx*dD]"}t||kd||dd�f�qFWd|kr�t�dt�xF|��D]:}d	|kr�q�tt||�tkd
|t||�||f�q�Wtt|d�tkd|df�t|d
dkd|d
�t	|d�t
|d�|ddk�r<t�d|dt�t|�d��pX|d�d�d|d�t|�d��p�|d�d�d|d�|�d��r�tt
|d�dkd|d�|�d��s�td|kd�t|�d�dkd�dS)Nz:Environment is not of the right type: %r (environment: %r))	�REQUEST_METHODZSERVER_NAMEZSERVER_PORTzwsgi.versionz
wsgi.inputzwsgi.errorszwsgi.multithreadzwsgi.multiprocessz
wsgi.run_oncez$Environment missing required key: %r)ZHTTP_CONTENT_TYPEZHTTP_CONTENT_LENGTHz8Environment should not have the key: %s (use %s instead)�ZQUERY_STRINGz�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 likely�.z9Environmental variable %s is not a string: %r (value: %r)zwsgi.versionz#wsgi.version should be a tuple (%r)zwsgi.url_scheme)ZhttpZhttpszwsgi.url_scheme unknown: %rz
wsgi.inputzwsgi.errorsrQ)ZGETZHEADZPOSTZOPTIONSZPATCHZPUTZDELETEZTRACEzUnknown REQUEST_METHOD: %rZSCRIPT_NAME�/z$SCRIPT_NAME doesn't start with /: %rZ	PATH_INFOz"PATH_INFO doesn't start with /: %rZCONTENT_LENGTHrzInvalid CONTENT_LENGTH: %rzgOne of SCRIPT_NAME or PATH_INFO are required (PATH_INFO should at least be '/' if SCRIPT_NAME is empty)zOSCRIPT_NAME cannot be '/'; it should instead be '', and PATH_INFO should be '/')rr
�dict�warnings�warnr�keysr�tuple�check_input�check_errors�get�
startswith�int)r*�keyrrr	r%*sZ


r%cCs*x$dD]}tt||�d||f�qWdS)N)r2r5r6r:z-wsgi.input (%r) doesn't have the attribute %s)rrM)r0�attrrrr	rZks

rZcCs*x$dD]}tt||�d||f�qWdS)N)r@r>rBz.wsgi.errors (%r) doesn't have the attribute %s)rrM)r=r`rrr	r[qs

r[cCsvt|d�}|�dd�d}tt|�dkd|�t|�}t|dkd|�t|�dksb|dd	krrt�d
|t�dS)N�Statusrrrz)Status codes must be three characters: %r�dzStatus code is invalid: %r�� zjThe status string (%r) should be a three-digit integer followed by a single space and a status explanation)r�splitrrr^rVrWr)rZstatus_codeZ
status_intrrr	rws

rcCstt|�tkd|t|�f�x�|D]�}tt|�tkd|t|�f�tt|�dk�|\}}t|d�}t|d�}t|��dkd|�td|ko�d	|kd
|�tt�|�d|�t|�	d�o�|�	d
�d|�t
�|�r$tdd|t
�|��d�f�q$WdS)Nz%Headers (%r) must be of type list: %rz1Individual headers (%r) must be of type tuple: %rrzHeader namezHeader valuerzyThe Status header cannot be used; it conflicts with CGI script, and HTTP status is not given through headers (value: %r).�
�:z,Header names may not contain ':' or '\n': %rzBad header name: %r�-�_z#Names may not end in '-' or '_': %rrz#Bad header value: %r (bad char: %r))rr
r7rYrr�lower�	header_re�search�endswith�bad_header_value_re�group)r �item�namerrrr	r�s,





rcCs~t|d�}t|�dd�d�}d}x@|D]8\}}t|d�}|��dkr(||krRdStdd|�q(W||krztdd|�dS)	Nrarr)��i0zHeader namezcontent-typezJContent-Type header found in a %s response, which must not return content.z,No Content-Type header found in headers (%s))rr^rerjr)rr �codeZNO_MESSAGE_BODYrqrrrr	r�s

rcCs*t|dkpt|�tkd|t|�f�dS)Nz exc_info (%r) is not a tuple: %r)rr
rY)r!rrr	r�srcCstt|ttf�d�dS)NzwYou should not return a string as your application iterator, instead return a single-item list containing a bytestring.)r�
isinstancerr3)r+rrr	r(�sr()r�__all__�rerNrV�compilerkrn�Warningrrrrr&r'rrEr)r%rZr[rrrrr(rrrr	�<module>ns.

7#		#A