o
     d"                     @   s   d dl Zd dlZd dlZd dlZd dlmZ d dlZd dlm	Z	m
Z
 d dlmZ d dlmZmZmZ d dlmZmZmZ ejedf ZG dd	 d	eZG d
d dZdS )    N)	parsedate)URLHeaders)HTTPException)FileResponseRedirectResponseResponse)ReceiveScopeSendzos.PathLike[str]c                       s&   e Zd ZdZdef fddZ  ZS )NotModifiedResponse)zcache-controlzcontent-locationdateetagexpiresvaryheadersc                    s&   t  jd fdd| D d d S )Ni0  c                    s    i | ]\}}| j v r||qS  )NOT_MODIFIED_HEADERS).0namevalueselfr   @/usr/local/lib/python3.10/dist-packages/starlette/staticfiles.py
<dictcomp>   s    z0NotModifiedResponse.__init__.<locals>.<dictcomp>)status_coder   )super__init__items)r   r   	__class__r   r   r      s   

zNotModifiedResponse.__init__)__name__
__module____qualname__r   r   r   __classcell__r   r   r   r   r      s    	r   c                   @   sT  e Zd Zdddddddeje dejejejeej	eef f   de
de
d	e
d
dfddZ		d'deje dejejejeej	eef f   d
eje fddZdededed
dfddZded
efddZdeded
efddZded
ej	eejej f fddZ	d(dedejdeded
ef
dd Zd)d!d"Zd#ed$ed
e
fd%d&ZdS )*StaticFilesNFT)	directorypackageshtml	check_dirfollow_symlinkr&   r'   r(   r)   r*   returnc                C   s`   || _ || _| ||| _|| _d| _|| _|r*|d ur,tj	|s.t
d| dd S d S d S )NFDirectory 'z' does not exist)r&   r'   get_directoriesall_directoriesr(   config_checkedr*   ospathisdirRuntimeError)r   r&   r'   r(   r)   r*   r   r   r   r   '   s   zStaticFiles.__init__c                 C   s   g }|dur| | |pg D ]P}t|tr|\}}nd}tj|}|dus/J d|d|jdus<J d|dtj	tj
|jd|}tj|sZJ d|d|d| | q|S )z
        Given `directory` and `packages` arguments, return a list of all the
        directories that should be used for serving static files from.
        NstaticszPackage z could not be found.z..r,   z' in package )append
isinstancetuple	importlibutil	find_specoriginr0   r1   normpathjoinr2   )r   r&   r'   directoriespackagestatics_dirspecpackage_directoryr   r   r   r-   ;   s(   


zStaticFiles.get_directoriesscopereceivesendc                    s^   |d dks	J | j s|  I dH  d| _ | |}| ||I dH }||||I dH  dS )z'
        The ASGI entry point.
        typehttpNT)r/   check_configget_pathget_response)r   rC   rD   rE   r1   responser   r   r   __call__\   s   
zStaticFiles.__call__c                 C   s   t jt jj|d d S )z
        Given the ASGI scope, return the `path` string to serve up,
        with OS specific path separators, and any '..', '.' components removed.
        r1   /)r0   r1   r<   r=   split)r   rC   r   r   r   rI   j   s   zStaticFiles.get_pathr1   c                    s^  |d dvrt ddztj| j|I dH \}}W n ty'   t dd ty.    w |r>t|j	r>| 
|||S |rt|j	r| jrtj|d}tj| j|I dH \}}|durt|j	r|d d	st|d
}|j|jd	 d}t|dS | 
|||S | jrtj| jdI dH \}}|rt|j	rt|||d ddS t dd)z`
        Returns an HTTP response, given the incoming path, method and request headers.
        method)GETHEADi  )r   Ni  z
index.htmlr1   rM   rC   )r1   )urlz404.htmli  )stat_resultrO   r   )r   anyio	to_threadrun_synclookup_pathPermissionErrorOSErrorstatS_ISREGst_modefile_responseS_ISDIRr(   r0   r1   r=   endswithr   replacer   r   )r   r1   rC   	full_pathrT   
index_pathrS   r   r   r   rJ   q   sJ   




zStaticFiles.get_responsec              
   C   s   | j D ]?}tj||}| jrtj|}ntj|}tj|}tj||g|kr-qz
|t|fW   S  t	t
fyB   Y qw dS )N) N)r.   r0   r1   r=   r*   abspathrealpathcommonprefixr[   FileNotFoundErrorNotADirectoryError)r   r1   r&   joined_pathrb   r   r   r   rX      s   
zStaticFiles.lookup_path   rb   rT   r   c                 C   s>   |d }t |d}t||||d}| |j|rt|jS |S )NrO   rR   )r   rT   rO   )r   r   is_not_modifiedr   r   )r   rb   rT   rC   r   rO   request_headersrK   r   r   r   r^      s   

zStaticFiles.file_responsec                    s   | j du rdS ztjtj| j I dH }W n ty&   td| j  dw t|j	s<t
|j	s>td| j  ddS dS )z
        Perform a one-off configuration check that StaticFiles is actually
        pointed at a directory, so that we can raise loud errors rather than
        just returning 404 responses.
        NzStaticFiles directory 'z' does not exist.zStaticFiles path 'z' is not a directory.)r&   rU   rV   rW   r0   r[   rh   r3   r_   r]   S_ISLNK)r   rT   r   r   r   rH      s   
zStaticFiles.check_configresponse_headersrm   c                 C   s   z|d }|d }||krW dS W n	 t y   Y nw z$t|d }t|d }|dur7|dur:||kr=W dS W dS W dS W dS  t yI   Y dS w )z
        Given the request and response headers, return `True` if an HTTP
        "Not Modified" response could be returned instead.
        zif-none-matchr   Tzif-modified-sincezlast-modifiedNF)KeyErrorr   )r   ro   rm   if_none_matchr   if_modified_sincelast_modifiedr   r   r   rl      s:   			zStaticFiles.is_not_modified)NN)rk   )r+   N)r!   r"   r#   typingOptionalPathLikeListUnionstrTupleboolr   r-   r
   r	   r   rL   rI   r   rJ   r0   rT   rX   intr^   rH   r   rl   r   r   r   r   r%   &   sx    	


!1


r%   )importlib.utilr8   r0   r[   rt   email.utilsr   rU   starlette.datastructuresr   r   starlette.exceptionsr   starlette.responsesr   r   r   starlette.typesr	   r
   r   rx   ry   rv   r   r%   r   r   r   r   <module>   s    