a
    åzeû:  ã                   @   sä   d gZ ddlZddlZddlZe d¡Ze d¡ZG dd„ deƒZdd„ Z	d	d
„ Z
dd „ ZG dd„ dƒZG dd„ dƒZG dd„ dƒZG dd„ dƒZG dd„ dƒZdd„ Zdd„ Zdd„ Zdd„ Zdd„ Zd d!„ Zd"d#„ Zd$d%„ ZdS )&Ú	validatoré    Nz^[a-zA-Z][a-zA-Z0-9\-_]*$z[\000-\037]c                   @   s   e Zd ZdS )ÚWSGIWarningN)Ú__name__Ú
__module__Ú__qualname__© r   r   ú&/usr/lib/python3.9/wsgiref/validate.pyr   y   s   r   c                 G   s   | st |Ž ‚d S ©N)ÚAssertionError)ÚcondÚargsr   r   r   Úassert_~   s    r   c                 C   s(   t | ƒtu r| S td |t| ƒ¡ƒ‚d S )Nz!{0} must be of type str (got {1}))ÚtypeÚstrr
   ÚformatÚrepr)ÚvalueÚtitler   r   r   Úcheck_string_type‚   s
    ÿr   c                    s   ‡ fdd„}|S )Nc                     s’   t t| ƒdkdƒ t | dƒ | \}‰ t|ƒ g ‰‡ ‡fdd„}t|d ƒ|d< t|d ƒ|d< ˆ||ƒ}t |d uoz|dkd	ƒ t|ƒ t|ˆƒS )
Né   zTwo arguments requiredúNo keyword arguments allowedc                     s’   t t| ƒdkpt| ƒdkd| f ƒ t | dƒ | d }| d }t| ƒdkrV| d }nd }t|ƒ t|ƒ t||ƒ t|ƒ ˆ d ¡ tˆ | Ž ƒS )Nr   é   zInvalid number of arguments: %sr   r   é   )r   ÚlenÚcheck_statusÚcheck_headersÚcheck_content_typeÚcheck_exc_infoÚappendÚWriteWrapper)r   ÚkwÚstatusÚheadersÚexc_info©Zstart_responseZstart_response_startedr   r   Ústart_response_wrapperŸ   s    ÿ


z;validator.<locals>.lint_app.<locals>.start_response_wrapperú
wsgi.inputúwsgi.errorsFz>The application must return an iterator, if only an empty list)r   r   Úcheck_environÚInputWrapperÚErrorWrapperÚcheck_iteratorÚIteratorWrapper)r   r    Úenvironr%   Úiterator©Úapplicationr$   r   Úlint_app”   s    
ÿzvalidator.<locals>.lint_appr   )r0   r1   r   r/   r   r   ˆ   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 r	   )Úinput)ÚselfÚ
wsgi_inputr   r   r   Ú__init__Á   s    zInputWrapper.__init__c                 G   s0   t t|ƒdkƒ | jj|Ž }t t|ƒtu ƒ |S ©Nr   )r   r   r2   Úreadr   Úbytes©r3   r   Úvr   r   r   r7   Ä   s    zInputWrapper.readc                 G   s0   t t|ƒdkƒ | jj|Ž }t t|ƒtu ƒ |S r6   )r   r   r2   Úreadliner   r8   r9   r   r   r   r;   Ê   s    zInputWrapper.readlinec                 G   sJ   t t|ƒdkƒ | jj|Ž }t t|ƒtu ƒ |D ]}t t|ƒtu ƒ q0|S r6   )r   r   r2   Ú	readlinesr   Úlistr8   )r3   r   ÚlinesÚliner   r   r   r<   Ð   s    zInputWrapper.readlinesc                 c   s   |   ¡ }|sd S |V  q d S r	   )r;   )r3   r?   r   r   r   Ú__iter__Ø   s    zInputWrapper.__iter__c                 C   s   t ddƒ d S )Nr   z input.close() must not be called©r   ©r3   r   r   r   Úcloseß   s    zInputWrapper.closeN)	r   r   r   r5   r7   r;   r<   r@   rC   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 r	   )Úerrors)r3   Úwsgi_errorsr   r   r   r5   ä   s    zErrorWrapper.__init__c                 C   s    t t|ƒtu ƒ | j |¡ d S r	   )r   r   r   rD   Úwrite©r3   Úsr   r   r   rF   ç   s    zErrorWrapper.writec                 C   s   | j  ¡  d S r	   )rD   ÚflushrB   r   r   r   rI   ë   s    zErrorWrapper.flushc                 C   s   |D ]}|   |¡ qd S r	   )rF   )r3   Úseqr?   r   r   r   Ú
writelinesî   s    zErrorWrapper.writelinesc                 C   s   t ddƒ d S )Nr   z!errors.close() must not be calledrA   rB   r   r   r   rC   ò   s    zErrorWrapper.closeN)r   r   r   r5   rF   rI   rK   rC   r   r   r   r   r*   â   s
   r*   c                   @   s   e Zd Zdd„ Zdd„ ZdS )r   c                 C   s
   || _ d S r	   )Úwriter)r3   Zwsgi_writerr   r   r   r5   ÷   s    zWriteWrapper.__init__c                 C   s   t t|ƒtu ƒ |  |¡ d S r	   )r   r   r8   rL   rG   r   r   r   Ú__call__ú   s    zWriteWrapper.__call__N)r   r   r   r5   rM   r   r   r   r   r   õ   s   r   c                   @   s   e Zd Zdd„ Zdd„ ZdS )ÚPartialIteratorWrapperc                 C   s
   || _ d S r	   ©r.   )r3   Úwsgi_iteratorr   r   r   r5      s    zPartialIteratorWrapper.__init__c                 C   s   t | jd ƒS r	   )r,   r.   rB   r   r   r   r@     s    zPartialIteratorWrapper.__iter__N)r   r   r   r5   r@   r   r   r   r   rN   þ   s   rN   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|ƒ| _d| _|| _d S )NF)Úoriginal_iteratorÚiterr.   ÚclosedÚcheck_start_response)r3   rP   rT   r   r   r   r5   	  s    
zIteratorWrapper.__init__c                 C   s   | S r	   r   rB   r   r   r   r@     s    zIteratorWrapper.__iter__c                 C   sT   t | j dƒ t| jƒ}t|ƒtur4t dd|f ƒ | jd urPt | jdƒ 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   rS   Únextr.   r   r8   rT   )r3   r:   r   r   r   Ú__next__  s    ÿ

ÿzIteratorWrapper.__next__c                 C   s    d| _ t| jdƒr| j ¡  d S )NTrC   )rS   ÚhasattrrQ   rC   rB   r   r   r   rC     s    zIteratorWrapper.closec                 C   s"   | j stj d¡ t| j dƒ d S )Nz/Iterator garbage collected without being closed)rS   ÚsysÚstderrrF   r   rB   r   r   r   Ú__del__#  s    ÿÿzIteratorWrapper.__del__N)r   r   r   r5   r@   rV   rC   rZ   r   r   r   r   r,     s
   r,   c                 C   sà  t t| ƒtu dt| ƒ| f ƒ dD ]}t || v d|f ƒ q"dD ]"}t || vd||dd … f ƒ q@d| vrxt dt¡ |  ¡ D ]:}d	|v rŽq€t t| | ƒtu d
|t| | ƒ| | f ƒ q€t t| d ƒtu d| d f ƒ t | d dv d| d  ƒ t	| d ƒ t
| d ƒ | d dvr0t d| d  t¡ t |  d¡ pL| d  d¡d| d  ƒ t |  d¡ pv| d  d¡d| d  ƒ |  d¡r®t t| d ƒdkd| d  ƒ |  d¡sÈt d| v dƒ t |  d¡dkdƒ d S )Nz:Environment is not of the right type: %r (environment: %r))	ÚREQUEST_METHODZSERVER_NAMEZSERVER_PORTúwsgi.versionr&   r'   zwsgi.multithreadzwsgi.multiprocesszwsgi.run_oncez$Environment missing required key: %r)ZHTTP_CONTENT_TYPEZHTTP_CONTENT_LENGTHz8Environment should not have the key: %s (use %s instead)é   ZQUERY_STRINGz’QUERY_STRING is not in the WSGI environment; the cgi module will use sys.argv when this variable is missing, so application errors are more likelyÚ.z9Environmental variable %s is not a string: %r (value: %r)r\   z#wsgi.version should be a tuple (%r)zwsgi.url_scheme)ÚhttpÚhttpszwsgi.url_scheme unknown: %rr&   r'   r[   )ÚGETZHEADZPOSTZOPTIONSZPATCHÚPUTZDELETEZTRACEzUnknown REQUEST_METHOD: %rZSCRIPT_NAMEú/z$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 '/')r   r   ÚdictÚwarningsÚwarnr   Úkeysr   ÚtupleÚcheck_inputÚcheck_errorsÚgetÚ
startswithÚint)r-   Úkeyr   r   r   r(   *  sx    
ÿÿÿÿÿüÿÿÿ
ÿ
þ
þ
þ
ÿÿÿr(   c                 C   s&   dD ]}t t| |ƒd| |f ƒ qd S )N)r7   r;   r<   r@   z-wsgi.input (%r) doesn't have the attribute %s©r   rW   )r4   Úattrr   r   r   ri   k  s    
ÿÿri   c                 C   s&   dD ]}t t| |ƒd| |f ƒ qd S )N)rI   rF   rK   z.wsgi.errors (%r) doesn't have the attribute %sro   )rE   rp   r   r   r   rj   q  s    
ÿÿrj   c                 C   sv   t | dƒ} |  d d¡d }tt|ƒdkd| ƒ t|ƒ}t|dkd| ƒ t| ƒdk sb| d d	krrt d
|  t¡ d S )NÚStatusr   r   r   z)Status codes must be three characters: %réd   zStatus code is invalid: %ré   ú zjThe status string (%r) should be a three-digit integer followed by a single space and a status explanation)r   Úsplitr   r   rm   re   rf   r   )r!   Zstatus_codeZ
status_intr   r   r   r   w  s    
ÿþýr   c                 C   s  t t| ƒtu d| t| ƒf ƒ | D ]Ü}t t|ƒtu d|t|ƒf ƒ t t|ƒdkƒ |\}}t|dƒ}t|dƒ}t | ¡ dkd| ƒ t d|vo–d	|vd
| ƒ t t |¡d| ƒ t | 	d¡ oÌ| 	d¡ d| ƒ t
 |¡r"t dd|t
 |¡ d¡f ƒ q"d S )Nz%Headers (%r) must be of type list: %rz1Individual headers (%r) must be of type tuple: %rr   ú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).Ú
ú:z,Header names may not contain ':' or '\n': %rzBad header name: %rú-Ú_z#Names may not end in '-' or '_': %rr   z#Bad header value: %r (bad char: %r))r   r   r=   rh   r   r   ÚlowerÚ	header_reÚsearchÚendswithÚbad_header_value_reÚgroup)r"   ÚitemÚnamer   r   r   r   r   …  s>    
ÿÿ
ÿÿ

þÿÿÿ
ÿr   c                 C   s|   t | dƒ} t|  d d¡d ƒ}d}|D ]:\}}t |dƒ}| ¡ dkr&||vrR d S tdd| ƒ q&||vrxtdd| ƒ d S )	Nrq   r   r   )éÌ   i0  rv   zcontent-typezJContent-Type header found in a %s response, which must not return content.z,No Content-Type header found in headers (%s))r   rm   ru   r{   r   )r!   r"   ÚcodeZNO_MESSAGE_BODYr‚   r   r   r   r   r   ž  s    

ÿr   c                 C   s*   t | d u pt| ƒtu d| t| ƒf ƒ d S )Nz exc_info (%r) is not a tuple: %r)r   r   rh   )r#   r   r   r   r   ®  s    ÿr   c                 C   s   t t| ttfƒ dƒ d S )NzwYou should not return a string as your application iterator, instead return a single-item list containing a bytestring.)r   Ú
isinstancer   r8   rO   r   r   r   r+   ³  s    ÿr+   )Ú__all__ÚrerX   re   Úcompiler|   r   ÚWarningr   r   r   r   r)   r*   r   rN   r,   r(   ri   rj   r   r   r   r   r+   r   r   r   r   Ú<module>o   s,   

7#		#A