U
    e!                     @  s   d dl mZ 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
Z	d dlm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 )    )annotationsN)	parsedate)get_route_path)URLHeaders)HTTPException)FileResponseRedirectResponseResponse)ReceiveScopeSendzos.PathLike[str]c                      s&   e Zd ZdZdd fddZ  ZS )NotModifiedResponse)zcache-controlzcontent-locationdateetagexpiresvaryr   )headersc                   s&   t  jd fdd| D d d S )Ni0  c                   s    i | ]\}}| j kr||qS  )NOT_MODIFIED_HEADERS).0namevalueselfr   9/tmp/pip-unpacked-wheel-2mv5qoba/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   __classcell__r   r   r!   r   r      s   	r   c                   @  s   e Zd Zddddddddddddd	d
dZd0ddddddZdddddddZdddddZddddddZdddd d!Zd1d#d$dd%dd&d'd(Z	dd)d*d+Z
d,d,dd-d.d/ZdS )2StaticFilesNFT)	directorypackageshtml	check_dirfollow_symlinkzPathLike | Nonez"list[str | tuple[str, str]] | NoneboolNone)r(   r)   r*   r+   r,   returnc                C  sX   || _ || _| ||| _|| _d| _|| _|rT|d k	rTtj	|sTt
d| d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__zlist[PathLike])r(   r)   r/   c                 C  s   g }|dk	r| | |pg D ]}t|tr6|\}}nd}tj|}|dk	s^td|d|jdk	sxtd|dtj	
tj	|jd|}tj	|st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.
        NZstaticszPackage z could not be found.z..r0   z' in package )append
isinstancetuple	importlibutil	find_specAssertionErrororiginr4   r5   normpathjoinr6   )r   r(   r)   directoriespackageZstatics_dirspecpackage_directoryr   r   r   r1   =   s(    	


zStaticFiles.get_directoriesr   r   r   )scopereceivesendr/   c                   s\   |d dkst | js*|  I dH  d| _| |}| ||I dH }||||I dH  dS )z'
        The ASGI entry point.
        typehttpNT)r>   r3   check_configget_pathget_response)r   rF   rG   rH   r5   responser   r   r   __call__\   s    
zStaticFiles.__call__str)rF   r/   c                 C  s"   t |}tjtjj|d S )z
        Given the ASGI scope, return the `path` string to serve up,
        with OS specific path separators, and any '..', '.' components removed.
        /)r   r4   r5   r@   rA   split)r   rF   Z
route_pathr   r   r   rL   j   s    zStaticFiles.get_pathr
   )r5   rF   r/   c                   sx  |d dkrt ddztj| j|I dH \}}W n2 tk
rR   t ddY n tk
rf    Y nX |rt|j	r| 
|||S |r&t|j	r&| jr&tj|d}tj| j|I dH \}}|dk	r&t|j	r&|d d	st|d
}|j|jd	 d}t|dS | 
|||S | jrjtj| jdI dH \}}|rjt|j	rjt||ddS t dddS )z`
        Returns an HTTP response, given the incoming path, method and request headers.
        method)GETHEADi  )r   Ni  z
index.htmlr5   rQ   rF   )r5   )urlz404.htmli  )stat_resultr   )r   anyio	to_threadrun_synclookup_pathPermissionErrorOSErrorstatS_ISREGst_modefile_responseS_ISDIRr*   r4   r5   rA   endswithr   replacer	   r   )r   r5   rF   	full_pathrX   Z
index_pathrW   r   r   r   rM   r   sB    
  

 zStaticFiles.get_responsez!tuple[str, os.stat_result | None])r5   r/   c              
   C  s   | j D ]}tj||}| jr,tj|}ntj|}tj|}tj||g|krZqz|t|fW   S  t	t
fk
r   Y qY qX qdS )N) N)r2   r4   r5   rA   r,   abspathrealpath
commonpathr_   FileNotFoundErrorNotADirectoryError)r   r5   r(   Zjoined_pathrf   r   r   r   r\      s    
zStaticFiles.lookup_path   PathLikezos.stat_resultint)rf   rX   rF   r   r/   c                 C  s4   t |d}t|||d}| |j|r0t|jS |S )NrV   )r   rX   )r   r   is_not_modifiedr   r   )r   rf   rX   rF   r   request_headersrN   r   r   r   rb      s    
  
zStaticFiles.file_response)r/   c                   s   | j dkrdS ztjtj| j I dH }W n& tk
rP   td| j  dY nX t|j	s|t
|j	s|td| j  d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(   rY   rZ   r[   r4   r_   rk   r7   rc   ra   S_ISLNK)r   rX   r   r   r   rK      s    

zStaticFiles.check_configr   )response_headersrq   r/   c                 C  s   z2|d }|d }|dd | dD kr0W dS W n tk
rF   Y nX z:t|d }t|d }|d	k	r|d	k	r||krW dS W n tk
r   Y nX d
S )z
        Given the request and response headers, return `True` if an HTTP
        "Not Modified" response could be returned instead.
        zif-none-matchr   c                 S  s   g | ]}| d qS )z W/)strip)r   tagr   r   r   
<listcomp>   s     z/StaticFiles.is_not_modified.<locals>.<listcomp>,Tzif-modified-sincezlast-modifiedNF)rR   KeyErrorr   )r   rs   rq   Zif_none_matchr   Zif_modified_sinceZlast_modifiedr   r   r   rp      s(    

zStaticFiles.is_not_modified)NN)rm   )r#   r$   r%   r   r1   rO   rL   rM   r\   rb   rK   rp   r   r   r   r   r'   *   s"     , r'   )
__future__r   importlib.utilr;   r4   r_   typingemail.utilsr   rY   Zanyio.to_threadZstarlette._utilsr   Zstarlette.datastructuresr   r   Zstarlette.exceptionsr   Zstarlette.responsesr   r	   r
   Zstarlette.typesr   r   r   UnionrP   rn   r   r'   r   r   r   r   <module>   s   