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3

  \;;                 @   s   d gZ ddlZddlZddlZejdZejdZG dd deZdd Z	d	d
 Z
dd  ZG dd dZG dd dZG dd dZG dd dZG d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$d% ZdS )&	validator    Nz^[a-zA-Z][a-zA-Z0-9\-_]*$z[\000-\037]c               @   s   e Zd ZdS )WSGIWarningN)__name__
__module____qualname__ r   r   (/usr/lib64/python3.6/wsgiref/validate.pyr   y   s   r   c             G   s   | st | d S )N)AssertionError)Zcondargsr   r   r   assert_~   s    r   c             C   s(   t | tkr| S tdj|t| d S )Nz!{0} must be of type str (got {1}))typestrr	   formatrepr)valuetitler   r   r   check_string_type   s    r   c                s    fdd}|S )Nc                 s   t t| dkd t | d | \} t| g  fdd}t|d |d< t|d |d< ||}t |d k	oz|dkd	 t| t|S )
N   zTwo arguments requiredzNo keyword arguments allowedc                 s   t t| dkpt| dkd| f  t | d | d }| d }t| dkrV| d }nd }t| t| t|| t| jd  t |  S )Nr      zInvalid number of arguments: %szNo 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_startedr   r   start_response_wrapper   s    


z;validator.<locals>.lint_app.<locals>.start_response_wrapperz
wsgi.inputzwsgi.errorsFz>The application must return an iterator, if only an empty list)r   r   check_environInputWrapperErrorWrappercheck_iteratorIteratorWrapper)r
   r   environr#   iterator)application)r!   r"   r   lint_app   s    
zvalidator.<locals>.lint_appr   )r+   r,   r   )r+   r   r      s    )c               @   s<   e Zd Zdd Zdd Zdd Zdd Zd	d
 Zdd ZdS )r%   c             C   s
   || _ d S )N)input)self
wsgi_inputr   r   r   __init__   s    zInputWrapper.__init__c             G   s0   t t|dk | jj| }t t|tk |S )Nr   )r   r   r-   readr   bytes)r.   r
   vr   r   r   r1      s    zInputWrapper.readc             G   s0   t t|dk | jj| }t t|tk |S )Nr   )r   r   r-   readliner   r2   )r.   r
   r3   r   r   r   r4      s    zInputWrapper.readlinec             G   sN   t t|dk | jj| }t t|tk x|D ]}t t|tk q2W |S )Nr   )r   r   r-   	readlinesr   listr2   )r.   r
   linesliner   r   r   r5      s    
zInputWrapper.readlinesc             c   s    x| j  }|sd S |V  qW d S )N)r4   )r.   r8   r   r   r   __iter__   s
    zInputWrapper.__iter__c             C   s   t dd d S )Nr   z input.close() must not be called)r   )r.   r   r   r   close   s    zInputWrapper.closeN)	r   r   r   r0   r1   r4   r5   r9   r:   r   r   r   r   r%      s   r%   c               @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )r&   c             C   s
   || _ d S )N)errors)r.   wsgi_errorsr   r   r   r0      s    zErrorWrapper.__init__c             C   s    t t|tk | jj| d S )N)r   r   r   r;   write)r.   sr   r   r   r=      s    zErrorWrapper.writec             C   s   | j j  d S )N)r;   flush)r.   r   r   r   r?      s    zErrorWrapper.flushc             C   s   x|D ]}| j | qW d S )N)r=   )r.   seqr8   r   r   r   
writelines   s    
zErrorWrapper.writelinesc             C   s   t dd d S )Nr   z!errors.close() must not be called)r   )r.   r   r   r   r:      s    zErrorWrapper.closeN)r   r   r   r0   r=   r?   rA   r:   r   r   r   r   r&      s
   r&   c               @   s   e Zd Zdd Zdd ZdS )r   c             C   s
   || _ d S )N)writer)r.   Zwsgi_writerr   r   r   r0      s    zWriteWrapper.__init__c             C   s   t t|tk | j| d S )N)r   r   r2   rB   )r.   r>   r   r   r   __call__   s    zWriteWrapper.__call__N)r   r   r   r0   rC   r   r   r   r   r      s   r   c               @   s   e Zd Zdd Zdd ZdS )PartialIteratorWrapperc             C   s
   || _ d S )N)r*   )r.   wsgi_iteratorr   r   r   r0      s    zPartialIteratorWrapper.__init__c             C   s   t | jd S )N)r(   r*   )r.   r   r   r   r9     s    zPartialIteratorWrapper.__iter__N)r   r   r   r0   r9   r   r   r   r   rD      s   rD   c               @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )r(   c             C   s    || _ t|| _d| _|| _d S )NF)original_iteratoriterr*   closedcheck_start_response)r.   rE   rI   r   r   r   r0   	  s    
zIteratorWrapper.__init__c             C   s   | S )Nr   )r.   r   r   r   r9     s    zIteratorWrapper.__iter__c             C   sT   t | j d t| j}t|tk	r4t dd|f  | jd k	rPt | jd d | _|S )NzIterator read after closedFz$Iterator yielded non-bytestring (%r)zjThe application returns and we started iterating over its body, but start_response has not yet been called)r   rH   nextr*   r   r2   rI   )r.   r3   r   r   r   __next__  s    

zIteratorWrapper.__next__c             C   s    d| _ t| jdr| jj  d S )NTr:   )rH   hasattrrF   r:   )r.   r   r   r   r:     s    zIteratorWrapper.closec             C   s"   | j stjjd t| j d d S )Nz/Iterator garbage collected without being closed)rH   sysstderrr=   r   )r.   r   r   r   __del__#  s
    zIteratorWrapper.__del__N)r   r   r   r0   r9   rK   r:   rO   r   r   r   r   r(     s
   r(   c          	   C   s  t t| tkdt| | f  x d,D ]}t || kd|f  q$W x*d-D ]"}t || kd||dd  f  qFW d| krtjdt xF| j D ]:}d|krqt t| | tkd|t| | | | f  qW t 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 t | jd" pX| d" jd#d$| d"   t | jd% p| d% jd#d&| d%   | jd'rt t| d' d(kd)| d'   | jd"st d%| kd* t | jd"d#kd+ d S )0Nz:Environment is not of the right type: %r (environment: %r)REQUEST_METHODSERVER_NAMESERVER_PORTwsgi.version
wsgi.inputwsgi.errorswsgi.multithreadwsgi.multiprocesswsgi.run_oncez$Environment missing required key: %rHTTP_CONTENT_TYPEHTTP_CONTENT_LENGTHz8Environment should not have the key: %s (use %s instead)   ZQUERY_STRINGzQUERY_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.version should be a tuple (%r)zwsgi.url_schemehttphttpszwsgi.url_scheme unknown: %rGETHEADPOSTOPTIONSPATCHPUTDELETETRACEzUnknown REQUEST_METHOD: %rZSCRIPT_NAME/z$SCRIPT_NAME doesn't start with /: %rZ	PATH_INFOz"PATH_INFO doesn't start with /: %rZCONTENT_LENGTHr   zInvalid CONTENT_LENGTH: %rzgOne of SCRIPT_NAME or PATH_INFO are required (PATH_INFO should at least be '/' if SCRIPT_NAME is empty)zOSCRIPT_NAME cannot be '/'; it should instead be '', and PATH_INFO should be '/')	rP   rQ   rR   rS   rT   rU   rV   rW   rX   )rY   rZ   )r]   r^   )r_   r`   ra   rb   rc   rd   re   rf   )r   r   dictwarningswarnr   keysr   tuplecheck_inputcheck_errorsget
startswithint)r)   keyr   r   r   r$   *  s`      

r$   c             C   s*   x$dD ]}t t| |d| |f  qW d S )Nr1   r4   r5   r9   z-wsgi.input (%r) doesn't have the attribute %s)r1   r4   r5   r9   )r   rL   )r/   attrr   r   r   rm   k  s    

rm   c             C   s*   x$dD ]}t t| |d| |f  qW d S )Nr?   r=   rA   z.wsgi.errors (%r) doesn't have the attribute %s)r?   r=   rA   )r   rL   )r<   rs   r   r   r   rn   q  s    

rn   c             C   sv   t | d} | jd dd }tt|dkd|  t|}t|dkd|  t| dk sb| d d	krrtjd
|  t d S )NStatusr   r   r   z)Status codes must be three characters: %rd   zStatus 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   r   rq   ri   rj   r   )r   Zstatus_codeZ
status_intr   r   r   r   w  s    

r   c             C   s  t t| tkd| t| f  i }x| 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od	|kd
|  t tj|d|  t |j	d o|j	d d|  t
j|r(t dd|t
j|jdf  q(W d S )Nz%Headers (%r) must be of type list: %rz1Individual headers (%r) must be of type tuple: %rr   zHeader namezHeader valuer   zyThe 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': %rzBad header name: %r-_z#Names may not end in '-' or '_': %rr   z#Bad header value: %r (bad char: %r))r   r   r6   rl   r   r   lower	header_researchendswithbad_header_value_regroup)r   Zheader_namesitemnamer   r   r   r   r     s0    





r   c             C   s~   t | d} t| jd dd }d
}x@|D ]8\}}t |d}|j dkr(||krRd S tdd|  q(W ||krztdd	|  d S )Nrt   r   r      0  zHeader namezcontent-typezJContent-Type header found in a %s response, which must not return content.z,No Content-Type header found in headers (%s))r   r   )r   rq   rx   r}   r   )r   r   codeZNO_MESSAGE_BODYr   r   r   r   r   r     s    

r   c             C   s*   t | d kpt| tkd| t| f  d S )Nz exc_info (%r) is not a tuple: %r)r   r   rl   )r    r   r   r   r     s    r   c             C   s   t t| ttf d d S )NzwYou should not return a string as your application iterator, instead return a single-item list containing a bytestring.)r   
isinstancer   r2   )r*   r   r   r   r'     s    r'   )__all__rerM   ri   compiler~   r   Warningr   r   r   r   r%   r&   r   rD   r(   r$   rm   rn   r   r   r   r   r'   r   r   r   r   <module>o   s,   

7#		#A