a
     d                     @   sr   d dl Z d dlZd dlZd dlmZmZ d dlmZmZ d dl	m
Z
mZmZmZmZ dZh dZG dd dZdS )	    N)HeadersMutableHeaders)PlainTextResponseResponse)ASGIAppMessageReceiveScopeSend)DELETEGETHEADOPTIONSPATCHPOSTPUT>   zContent-LanguagezContent-TypeAcceptzAccept-Languagec                   @   s   e Zd Zdeeje eje eje eeje eje e	dd	ddZ
eeedd	d
dZeedddZeedddZeeeeddddZeeeddddZeeeddddZdS )CORSMiddleware r   FNX  )	appallow_originsallow_methodsallow_headersallow_credentialsallow_origin_regexexpose_headersmax_agereturnc	                 C   s  d|v rt }d }	|d ur"t|}	d|v }
d|v }|
 p:|}i }|
rLd|d< |rXd|d< |rjd||d< i }|r|d|d< nd|d< |d|t|d	 ttt|B }|r|sd||d
< |rd|d< || _	|| _
|| _dd |D | _|
| _|| _|| _|	| _|| _|| _d S )N*Access-Control-Allow-Origintruez Access-Control-Allow-Credentials, zAccess-Control-Expose-HeadersOriginZVary)zAccess-Control-Allow-MethodszAccess-Control-Max-AgeAccess-Control-Allow-Headersc                 S   s   g | ]}|  qS r   lower.0hr   r   b/var/www/html/stable-diffusion-webui/venv/lib/python3.9/site-packages/starlette/middleware/cors.py
<listcomp>B       z+CORSMiddleware.__init__.<locals>.<listcomp>)ALL_METHODSrecompilejoinupdatestrsortedSAFELISTED_HEADERSsetr   r   r   r   allow_all_originsallow_all_headerspreflight_explicit_allow_originr   simple_headerspreflight_headers)selfr   r   r   r   r   r   r   r   Zcompiled_allow_origin_regexr7   r8   r9   r:   r;   r   r   r+   __init__   sN    


zCORSMiddleware.__init__)scopereceivesendr   c                    s   |d dkr$|  |||I d H  d S |d }t|d}|d}|d u r`|  |||I d H  d S |dkrd|v r| j|d}||||I d H  d S | j||||dI d H  d S )	Ntypehttpmethodr>   originr   access-control-request-method)request_headers)r   r   getpreflight_responsesimple_response)r<   r>   r?   r@   rC   headersrE   responser   r   r+   __call__J   s    

zCORSMiddleware.__call__)rE   r   c                 C   s.   | j r
dS | jd ur$| j|r$dS || jv S )NT)r7   r   	fullmatchr   )r<   rE   r   r   r+   is_allowed_origin^   s    z CORSMiddleware.is_allowed_origin)rG   r   c           	      C   s   |d }|d }| d}t| j}g }| j|drD| jrN||d< n
|d || jvrb|d | jrz|d urz||d< n>|d urdd	 |d
D D ] }|	 | j
vr|d  qq|rdd| }t|d|dS tdd|dS )NrE   rF   zaccess-control-request-headersrE   r!   rC   r%   c                 S   s   g | ]}|  qS r   r&   r(   r   r   r+   r,      r-   z5CORSMiddleware.preflight_response.<locals>.<listcomp>,rK   zDisallowed CORS r#   i  )status_coderK   OK   )rH   dictr;   rO   r9   appendr   r8   splitstripr   r1   r   )	r<   rG   Zrequested_originZrequested_methodZrequested_headersrK   ZfailuresheaderZfailure_textr   r   r+   rI   i   s,    







z!CORSMiddleware.preflight_response)r>   r?   r@   rG   r   c                    s*   t j| j||d}| |||I d H  d S )N)r@   rG   )	functoolspartialr@   r   )r<   r>   r?   r@   rG   r   r   r+   rJ      s    zCORSMiddleware.simple_response)messager@   rG   r   c                    s   |d dkr||I d H  d S | dg  t|d}|| j |d }d|v }| jrh|rh| || n| js| j|dr| || ||I d H  d S )NrA   zhttp.response.startrK   rD   r$   cookierP   )
setdefaultr   r2   r:   r7   allow_explicit_originrO   )r<   r\   r@   rG   rK   rE   Z
has_cookier   r   r+   r@      s    

zCORSMiddleware.send)rK   rE   r   c                 C   s   || d< |  d d S )Nr!   r$   )Zadd_vary_header)rK   rE   r   r   r+   r_      s    z$CORSMiddleware.allow_explicit_origin)r   r   r   FNr   r   )__name__
__module____qualname__r   typingSequencer3   boolOptionalintr=   r	   r   r
   rM   rO   r   r   rI   rJ   r   r@   staticmethodr   r_   r   r   r   r+   r      s:          <'r   )rZ   r/   rc   Zstarlette.datastructuresr   r   Zstarlette.responsesr   r   Zstarlette.typesr   r   r   r	   r
   r.   r5   r   r   r   r   r+   <module>   s   