o
     d                     @   sZ   d dl Z d dlmZmZ d dlmZmZmZ d dlm	Z	m
Z
mZmZ dZG dd dZdS )    N)URLHeaders)PlainTextResponseRedirectResponseResponse)ASGIAppReceiveScopeSendz6Domain wildcard patterns must be like '*.example.com'.c                	   @   sR   e Zd Z		ddedejeje  deddfddZ	d	e
d
ededdfddZdS )TrustedHostMiddlewareNTappallowed_hostswww_redirectreturnc                 C   sx   |d u rdg}|D ] }d|dd  vsJ t |dr)|dkr)|ds)J t q	|| _t|| _d|v | _|| _d S )N*   z*.)ENFORCE_DOMAIN_WILDCARD
startswithr   listr   	allow_anyr   )selfr   r   r   pattern r   K/usr/local/lib/python3.10/dist-packages/starlette/middleware/trustedhost.py__init__   s   


zTrustedHostMiddleware.__init__scopereceivesendc                    s  | j s
|d dvr| |||I d H  d S t|d}|dddd }d}d}| jD ] }||ksA|d	rE||d
d  rEd} n	d| |krMd}q-|r\| |||I d H  d S |rw| jrwt	|d}	|	j
d|	j d}
tt|
d}ntddd}||||I d H  d S )Ntype)http	websocket)r   host :r   Fr   r   Tzwww.)netloc)urlzInvalid host headeri  )status_code)r   r   r   getsplitr   r   endswithr   r   replacer$   r   strr   )r   r   r   r   headersr!   is_valid_hostfound_www_redirectr   r%   redirect_urlresponser   r   r   __call__   s6   



zTrustedHostMiddleware.__call__)NT)__name__
__module____qualname__r   typingOptionalSequencer+   boolr   r	   r   r
   r1   r   r   r   r   r   
   s    
r   )r5   starlette.datastructuresr   r   starlette.responsesr   r   r   starlette.typesr   r   r	   r
   r   r   r   r   r   r   <module>   s    