o
    Zh.                     @   s   d dl Z d dlZd dlZd dlmZmZmZmZ d dlm	Z	m
Z
mZmZmZmZmZmZ d dlmZmZ d dlmZ d dlmZmZ dZdZdZed	Zed
ZedZG dd deZG dd deZ dS )    N)ChunkedReaderLengthReader	EOFReaderBody)InvalidHeaderInvalidHeaderName
NoMoreDataInvalidRequestLineInvalidRequestMethodInvalidHTTPVersionLimitRequestLineLimitRequestHeaders)InvalidProxyLineForbiddenProxyRequest)InvalidSchemeHeaders)bytes_to_strsplit_request_urii  i   z%[\x00-\x1F\x7F()<>@,;:\[\]={} \t\\\"]z[A-Z0-9$-_.]{3,20}zHTTP/(\d+)\.(\d+)c                   @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )Messagec                 C   s   || _ || _|| _|| _d | _g | _g | _d | _|jrdnd| _	|j
| _
| j
dks.| j
tkr1t| _
|j| _| jdk r=t| _| jpAt}| j
|d  d | _| | j}| j| |   d S )Nhttpshttpr         )cfgunreader	peer_addrremote_addrversionheadersZtrailersbodyZis_sslschemelimit_request_fieldsMAX_HEADERSlimit_request_field_sizeDEFAULT_MAX_HEADERFIELD_SIZEmax_buffer_headersparseunreadset_body_reader)selfr   r   r   Zmax_header_field_sizeZunused r)   L/var/www/html/lang_env/lib/python3.10/site-packages/gunicorn/http/message.py__init__   s2   



zMessage.__init__c                 C   s   t  N)NotImplementedError)r(   r   r)   r)   r*   r%   ;   s   zMessage.parsec                 C   s  | j }g }dd |dD }d}i }d|jv s&t| jtr&| jd |jv r)|j}|rt|| jkr6t	d|
d}t|}|ddk rLt| |dd	\}	}
| j jr`|	d
 }	n|	 }	t|	rmt|	|	 |
 g}	}
|r|d dr|
d}|t|7 }|| j  krdkrt	d |
| |r|d dsd|
 }
|| j  krdkrt	d |	|v r|
||	 k}|rdnd}|r|| jkrt nd}|| _||	|
f |s+|S )Nc                 S   s   g | ]}t |d  qS )z
r   ).0liner)   r)   r*   
<listcomp>C   s    z)Message.parse_headers.<locals>.<listcomp>   
F*r   zlimit request headers fields:   z 	) 	z!limit request headers fields size r   r   T)r   splitZforwarded_allow_ips
isinstancer   tuplesecure_scheme_headerslenr    r   popfindr   stripZstrip_header_spacesrstripupper	HEADER_REsearchr   lstrip
startswithr"   appendjoinr   r   )r(   datar   r   linesZscheme_headerr<   currheader_lengthnamevaluesecurer   r)   r)   r*   parse_headers>   s`   






,zMessage.parse_headersc                 C   s   d}d }| j D ]!\}}|dkr|d urtd| d|}q|dkr(| dkr(d}q|r6tt| | j| _d S |d urpzt| rFt	|}ntd| dW n t
yZ   td| dw |dk retd| dtt| j|| _d S tt| j| _d S )NFzCONTENT-LENGTH)reqzTRANSFER-ENCODINGchunkedTr   )r   r   lowerr   r   r   r   str	isnumericint
ValueErrorr   r   )r(   rR   content_lengthrM   rN   r)   r)   r*   r'   }   s4   
zMessage.set_body_readerc                 C   sN   | j D ]\}}|dkr!|  }|dkr dS |dkr dS  nq| jdkS )NZ
CONNECTIONcloseTz
keep-aliveF)r5   r   )r   rS   r@   r   )r(   hvr)   r)   r*   should_close   s   
zMessage.should_closeN)__name__
__module____qualname__r+   r%   rP   r'   r\   r)   r)   r)   r*   r      s    ?r   c                       sf   e Zd Zd fdd	ZdddZdd Zdd
dZdd Zdd Zdd Z	dd Z
 fddZ  ZS )Requestr5   c                    s`   d | _ d | _d | _d | _d | _|j| _| jdk s| jtkr t| _|| _d | _t	 
||| d S Nr   )methoduripathqueryfragmentlimit_request_lineMAX_REQUEST_LINE
req_numberproxy_protocol_infosuperr+   )r(   r   r   r   ri   	__class__r)   r*   r+      s   

zRequest.__init__Fc                 C   s0   |  }|s|rt t| || d S r,   )readStopIterationr   getvaluewrite)r(   r   bufstoprI   r)   r)   r*   get_data   s   zRequest.get_datac           	      C   s>  t  }| j||dd | ||| j\}}| t|r0t  }|| | ||| j\}}| | t  }|| |	 }|
d}|d d dk}	 |
d}|d d dk}|dk ry|sy| || |	 }t|| jkrxtdnnqP|r| j|dd   dS | |d | | _||d	 d  }d }|S )
NT)rs   s   

r   r2   r   zmax buffer headers    r   )ioBytesIOrt   	read_linerg   proxy_protocolr   rq   parse_request_linerp   r?   r=   r$   r   r   r&   rP   r   )	r(   r   rr   r0   ZrbufrI   idxdoneretr)   r)   r*   r%      s>   




zRequest.parser   c                 C   s   |  }	 |d}|dkr ||  krdkrn nt||n"t|d |  kr.dkr7n ntt||| || |  }q|d | ||d d  fS )NTr2   r   r   )rp   r?   r   r=   rt   )r(   r   rr   limitrI   r{   r)   r)   r*   rx      s   

 
zRequest.read_linec                 C   s>   | j jsdS | jdkrdS |dsdS |   | | dS )z        Detect, check and parse proxy protocol.

        :raises: ForbiddenProxyRequest, InvalidProxyLine.
        :return: True for proxy protocol line else False
        Fr5   ZPROXYT)r   ry   ri   rF   proxy_protocol_access_checkparse_proxy_protocol)r(   r0   r)   r)   r*   ry     s   


zRequest.proxy_protocolc                 C   sD   d| j jvrt| jtr| jd | j jvr t| jd d S d S d S )Nr3   r   )r   Zproxy_allow_ipsr:   r   r;   r   r(   r)   r)   r*   r     s   
z#Request.proxy_protocol_access_checkc                 C   sT  |  }t|dkrt||d }|d }|d }|dvr$td| |dkrEzttj| ttj| W n- tjyD   t|w |dkrfzttj| ttj| W n tjye   t|w zt|d	 }t|d
 }W n t	y   td| w d|  krdkrn nd|  krdksn td| |||||d| _
d S )N   r5   r      )TCP4TCP6zprotocol '%s' not supportedr   r   r      zinvalid port %sr   i  )ry   client_addrZclient_portZ
proxy_addrZ
proxy_port)r9   r=   r   socket	inet_ptonAF_INETerrorAF_INET6rV   rW   rj   )r(   r0   bitsprotoZs_addrZd_addrZs_portZd_portr)   r)   r*   r     sH   .zRequest.parse_proxy_protocolc                 C   s   dd | d dD }t|dkrtt|t|d s$t|d |d  | _|d | _	zt
| j	}W n tyD   tt|w |jpId| _|jpOd| _|jpUd| _t|d }|d u rht|d t|dt|df| _d S )Nc                 S   s   g | ]}t |qS r)   r.   )r/   bitr)   r)   r*   r1   K  s    z.Request.parse_request_line.<locals>.<listcomp>r   r   r   r5   r8   )r9   r=   r	   r   METH_REmatchr
   rB   rb   rc   r   rW   rd   re   rf   
VERSION_REr   rV   groupr   )r(   Z
line_bytesr   partsr   r)   r)   r*   rz   J  s&   
"zRequest.parse_request_linec                    s2   t    t| jjtrtt| jd| _d S d S ra   )	rk   r'   r:   r   readerr   r   r   r   r   rl   r)   r*   r'   e  s   
zRequest.set_body_reader)r5   )F)r   )r]   r^   r_   r+   rt   r%   rx   ry   r   r   rz   r'   __classcell__r)   r)   rl   r*   r`      s    

--r`   )!rv   rer   Zgunicorn.http.bodyr   r   r   r   Zgunicorn.http.errorsr   r   r   r	   r
   r   r   r   r   r   r   Zgunicorn.utilr   r   rh   r!   r#   compilerC   r   r   objectr   r`   r)   r)   r)   r*   <module>   s"   (


 