U
    d-                     @   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$-_.]{3,20}zHTTP/(\d+)\.(\d+)c                   @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )Messagec                 C   s   || _ || _|| _d | _g | _g | _d | _|jr4dnd| _|j	| _	| j	dksV| j	t
kr\t
| _	|j| _| jdk rtt| _| jp|t}| j	|d  d | _| | j}| j| |   d S )Nhttpshttpr         )cfgunreader	peer_addrversionheadersZtrailersbodyZis_sslschemelimit_request_fieldsMAX_HEADERSlimit_request_field_sizeDEFAULT_MAX_HEADERFIELD_SIZEmax_buffer_headersparseunreadset_body_reader)selfr   r   r   Zmax_header_field_sizeZunused r(   9/tmp/pip-unpacked-wheel-1tw_qy24/gunicorn/http/message.py__init__   s2    


zMessage.__init__c                 C   s
   t  d S N)NotImplementedError)r'   r   r(   r(   r)   r$   :   s    zMessage.parsec                 C   s  | j }g }dd |dD }d}i }d|jksLt| jtrL| jd |jkrR|j}|rt|| jkrnt	d|
d}t|}|ddk rt| |dd	\}	}
| j jr|	d
 }	n|	 }	t|	rt|	|	 |
 g }	}
|rN|d drN|
d}|t|7 }|| j  kr6dkrBn nt	d|
| qd|
 }
|| j  krvdkrn nt	d|	|kr|
||	 k}|rdnd}|r|| jkrt n
d}|| _||	|
f qR|S )Nc                 S   s   g | ]}t |d  qS )z
r   ).0liner(   r(   r)   
<listcomp>B   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=   sX    





zMessage.parse_headersc                 C   s   d}d }| j D ]B\}}|dkr8|d k	r2td| d|}q|dkr| dkrd}q|rjtt| | j| _nn|d k	rzt|}W n  tk
r   td| dY nX |dk rtd| dtt	| j|| _ntt
| j| _d S )NFzCONTENT-LENGTH)reqzTRANSFER-ENCODINGchunkedTr   )r   r   lowerr   r   r   r   int
ValueErrorr   r   )r'   rQ   content_lengthrL   rM   r(   r(   r)   r&   |   s*    zMessage.set_body_readerc                 C   sN   | j D ]<\}}|dkr|  }|dkr0 dS |dkr> dS  qDq| jdkS )NZ
CONNECTIONcloseTz
keep-aliveF)r4   r   )r   rR   r?   r   )r'   hvr(   r(   r)   should_close   s    zMessage.should_closeN)__name__
__module____qualname__r*   r$   rO   r&   rY   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 )Requestr4   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   rf   	__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stoprH   r(   r(   r)   get_data   s    zRequest.get_datac           	      C   s>  t  }| j||dd | ||| j\}}| t|r`t  }|| | ||| j\}}| | t  }|| |	 }|
d}|d d dk}|
d}|d d dk}|dk r|s| || |	 }t|| jkrtdqqq|r| j|dd   dS | |d | | _||d	 d  }d }|S )
NT)rp   s   

r   r1   r   zmax buffer headers    r   )ioBytesIOrq   	read_linerd   proxy_protocolr   rn   parse_request_linerm   r>   r<   r#   r   r   r%   rO   r   )	r'   r   ro   r/   ZrbufrH   idxdoneretr(   r(   r)   r$      s8    





zRequest.parser   c                 C   s   |  }|d}|dkr>||  kr.dkrn qt||qt|d |  krZdkrln ntt||| || |  }q|d | ||d d  fS )Nr1   r   r   )rm   r>   r   r<   rq   )r'   r   ro   limitrH   rx   r(   r(   r)   ru      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
        Fr4   ZPROXYT)r   rv   rf   rE   proxy_protocol_access_checkparse_proxy_protocol)r'   r/   r(   r(   r)   rv      s    


zRequest.proxy_protocolc                 C   s<   d| j jkr8t| jtr8| jd | j jkr8t| jd d S )Nr2   r   )r   Zproxy_allow_ipsr9   r   r:   r   r'   r(   r(   r)   r|     s    
z#Request.proxy_protocol_access_checkc                 C   sr  |  }t|dkrt||d }|d }|d }|dkrHtd| |dkrz ttj| ttj| W q tjk
r   t|Y qX nH|dkrz ttj| ttj| W n tjk
r   t|Y nX zt|d	 }t|d
 }W n" t	k
r   td| Y nX d|  kr2dkrPn nd|  krNdks\n td| |||||d| _
d S )N   r4   r      )TCP4TCP6zprotocol '%s' not supportedr   r   r      zinvalid port %sr   i  )rv   client_addrZclient_portZ
proxy_addrZ
proxy_port)r8   r<   r   socket	inet_ptonAF_INETerrorAF_INET6rS   rT   rg   )r'   r/   bitsprotoZs_addrZd_addrZs_portZd_portr(   r(   r)   r}     sB    6zRequest.parse_proxy_protocolc                 C   s   dd | d dD }t|dkr.tt|t|d sHt|d |d  | _|d | _	zt
| j	}W n  tk
r   tt|Y nX |jpd| _|jpd| _|jpd| _t|d }|d krt|d t|dt|df| _d S )Nc                 S   s   g | ]}t |qS r(   r-   )r.   bitr(   r(   r)   r0   G  s     z.Request.parse_request_line.<locals>.<listcomp>r   r   r   r4   r7   )r8   r<   r	   r   METH_REmatchr
   rA   r_   r`   r   rT   ra   rb   rc   
VERSION_REr   rS   groupr   )r'   Z
line_bytesr   partsr   r(   r(   r)   rw   F  s$    
zRequest.parse_request_linec                    s.   t    t| jjtr*tt| jd| _d S r^   )	rh   r&   r9   r   readerr   r   r   r   r~   ri   r(   r)   r&   a  s    
zRequest.set_body_reader)r4   )F)r   )rZ   r[   r\   r*   rq   r$   ru   rv   r|   r}   rw   r&   __classcell__r(   r(   ri   r)   r]      s   
-
-r]   )!rs   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   re   r    r"   compilerB   r   r   objectr   r]   r(   r(   r(   r)   <module>   s    (


 