U
    mf`                     @   sv  d dl Z d dlZd dlmZ d dlmZ d dlmZmZm	Z	m
Z
mZ d dlmZ d dlmZ d dlmZmZmZmZ d dlmZ d d	lmZmZ d d
l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 dl&m'Z' ddl(m)Z) e* Z+e'dZ,G dd de-Z.G dd de/Z0G dd dZ1G dd deZ2G dd deZ3G dd dZ4dd Z5d d! Z6d"d# Z7d$d% Z8dS )&    N)BytesIO)chain)	parse_qslquote	urlencodeurljoinurlsplit)settings)signing)DisallowedHostImproperlyConfiguredRequestDataTooBigTooManyFieldsSent)uploadhandler)MultiPartParserMultiPartParserError)CaseInsensitiveMappingImmutableListMultiValueDict)escape_uri_path
iri_to_uri)cached_property)is_same_domainparse_header_parameters)_lazy_re_compile   )parse_headerz4^([a-z0-9.-]+|\[[a-f0-9]*:[a-f0-9\.:]+\])(:[0-9]+)?$c                   @   s   e Zd ZdS )UnreadablePostErrorN)__name__
__module____qualname__ r!   r!   7/tmp/pip-unpacked-wheel-siwebuq3/django/http/request.pyr   #   s   r   c                   @   s   e Zd ZdZdS )RawPostDataExceptionz
    You cannot access raw_post_data from a request that has
    multipart/* POST data if it has been accessed via POST,
    FILES, etc..
    N)r   r   r    __doc__r!   r!   r!   r"   r#   '   s   r#   c                   @   sN  e Zd ZdZdZg Zdd Zdd Zedd Z	ed	d
 Z
dd Zdd Zdd Zdd Zdd ZdCddZdDddZdd ZeddfddZdEdd Zed!d" Zd#d$ Zed%d& Zd'd( Zed)d* Zejd+d* Zd,d- Zed.d/ Zejd0d/ Zd1d2 Zed3d4 Z d5d6 Z!d7d8 Z"d9d: Z#d;d< Z$d=d> Z%d?d@ Z&dAdB Z'dS )FHttpRequestzA basic HTTP request.Nc                 C   sT   t dd| _t dd| _i | _i | _t | _d| _d| _d | _	d | _
d | _d | _d S )NT)mutable )	QueryDictGETPOSTCOOKIESMETAr   ZFILESpath	path_infomethodZresolver_matchcontent_typecontent_paramsselfr!   r!   r"   __init__8   s    zHttpRequest.__init__c                 C   s6   | j d ks|  sd| jj S d| jj| j |  f S )Nz<%s>z<%s: %s %r>)r/   get_full_path	__class__r   r2   r!   r!   r"   __repr__J   s    zHttpRequest.__repr__c                 C   s
   t | jS N)HttpHeadersr,   r2   r!   r!   r"   headersS   s    zHttpRequest.headersc                 C   s   t | jddS )z%Return a list of MediaType instances.Acceptz*/*)parse_accept_headerr:   getr2   r!   r!   r"   accepted_typesW   s    zHttpRequest.accepted_typesc                    s   t  fdd| jD S )Nc                 3   s   | ]}|  V  qd S r8   )match).0Zaccepted_type
media_typer!   r"   	<genexpr>]   s    z&HttpRequest.accepts.<locals>.<genexpr>)anyr>   )r3   rB   r!   rA   r"   accepts\   s    zHttpRequest.acceptsc                 C   s\   t |dd\| _| _d| jkrXzt| jd  W n tk
rJ   Y nX | jd | _dS )z/Set content_type, content_params, and encoding.CONTENT_TYPEr'   charsetN)r   r=   r0   r1   codecslookupLookupErrorencoding)r3   metar!   r!   r"   _set_content_type_paramsa   s    

z$HttpRequest._set_content_type_paramsc                 C   sh   t jrd| jkr| jd }nHd| jkr2| jd }n2| jd }|  }||  rRdndkrdd||f }|S )z
        Return the HTTP host using the environment or request headers. Skip
        allowed hosts protection, so may return an insecure host.
        ZHTTP_X_FORWARDED_HOSTZ	HTTP_HOSTZSERVER_NAME44380z%s:%s)r	   ZUSE_X_FORWARDED_HOSTr,   get_port	is_secure)r3   hostZserver_portr!   r!   r"   _get_raw_hostn   s    

zHttpRequest._get_raw_hostc                 C   sn   |   }tj}tjr"|s"dddg}t|\}}|r@t||r@|S d| }|rZ|d| 7 }n|d7 }t|dS )z>Return the HTTP host using the environment or request headers.z
.localhostz	127.0.0.1z[::1]zInvalid HTTP_HOST header: %r.z) You may need to add %r to ALLOWED_HOSTS.zB The domain name provided is not valid according to RFC 1034/1035.N)rS   r	   ZALLOWED_HOSTSDEBUGsplit_domain_portvalidate_hostr   )r3   rR   allowed_hostsdomainportmsgr!   r!   r"   get_host   s    

zHttpRequest.get_hostc                 C   s.   t jrd| jkr| jd }n
| jd }t|S )z3Return the port number for the request as a string.ZHTTP_X_FORWARDED_PORTZSERVER_PORT)r	   ZUSE_X_FORWARDED_PORTr,   str)r3   rY   r!   r!   r"   rP      s    
zHttpRequest.get_portFc                 C   s   |  | j|S r8   )_get_full_pathr-   r3   force_append_slashr!   r!   r"   r5      s    zHttpRequest.get_full_pathc                 C   s   |  | j|S r8   )r]   r.   r^   r!   r!   r"   get_full_path_info   s    zHttpRequest.get_full_path_infoc              	   C   sH   dt ||r|dsdnd| jddr@dt| jdd ndf S )N%s%s%s/r'   QUERY_STRING?)r   endswithr,   r=   r   )r3   r-   r_   r!   r!   r"   r]      s    zHttpRequest._get_full_pathr'   c                 C   s   z| j | }W n& tk
r4   |tk	r.| Y S  Y nX ztj|| dj||d}W n( tjk
r|   |tk	rv| Y S  Y nX |S )z
        Attempt to return a signed cookie. If the signature fails or the
        cookie has expired, raise an exception, unless the `default` argument
        is provided,  in which case return that value.
        )salt)max_age)r+   KeyErrorRAISE_ERRORr
   Zget_cookie_signerZunsignZBadSignature)r3   keydefaultrf   rg   Zcookie_valuevaluer!   r!   r"   get_signed_cookie   s      
zHttpRequest.get_signed_cookiec                 C   s   |dkrd|    }nt|}t|}|jr2|js|jdr|js|jsd|jkrd|jkr|drt|dd }| j| }nt| j| j |}t	|S )a  
        Build an absolute URI from the location and the variables available in
        this request. If no ``location`` is specified, build the absolute URI
        using request.get_full_path(). If the location is absolute, convert it
        to an RFC 3987 compliant URI and return it. If location is relative or
        is scheme-relative (i.e., ``//example.com/``), urljoin() it to a base
        URL constructed from the request variables.
        Nz//%srb   z/./z/../z//   )
r5   r\   r   schemenetlocr-   
startswith_current_scheme_hostr   r   )r3   locationbitsr!   r!   r"   build_absolute_uri   s(    	


zHttpRequest.build_absolute_uric                 C   s   d | j|  S )Nz{}://{})formatro   r[   r2   r!   r!   r"   rr      s    z HttpRequest._current_scheme_hostc                 C   s   dS )zf
        Hook for subclasses like WSGIRequest to implement. Return 'http' by
        default.
        httpr!   r2   r!   r!   r"   _get_scheme   s    zHttpRequest._get_schemec                 C   sr   t jrjzt j\}}W n tk
r0   tdY nX | j|}|d k	rj|dd^}}| |krfdS dS |  S )NzJThe SECURE_PROXY_SSL_HEADER setting must be a tuple containing two values.,r   httpsrw   )	r	   ZSECURE_PROXY_SSL_HEADER
ValueErrorr   r,   r=   splitstriprx   )r3   headerZsecure_valueheader_value_r!   r!   r"   ro      s    
zHttpRequest.schemec                 C   s
   | j dkS )Nrz   )ro   r2   r!   r!   r"   rQ     s    zHttpRequest.is_securec                 C   s   | j S r8   	_encodingr2   r!   r!   r"   rK     s    zHttpRequest.encodingc                 C   s&   || _ t| dr| `t| dr"| `dS )z
        Set the encoding used for GET/POST accesses. If the GET or POST
        dictionary has already been created, remove and recreate it on the
        next access (so that it is decoded correctly).
        r)   _postN)r   hasattrr)   r   )r3   valr!   r!   r"   rK     s
    

c                    s    fddt jD  _d S )Nc                    s   g | ]}t | qS r!   )r   Zload_handler)r@   handlerr2   r!   r"   
<listcomp>   s   z4HttpRequest._initialize_handlers.<locals>.<listcomp>)r	   ZFILE_UPLOAD_HANDLERS_upload_handlersr2   r!   r2   r"   _initialize_handlers  s    
z HttpRequest._initialize_handlersc                 C   s   | j s|   | j S r8   )r   r   r2   r!   r!   r"   upload_handlers%  s    zHttpRequest.upload_handlersc                 C   s   t | drtd|| _d S )N_fileszGYou cannot set the upload handlers after the upload has been processed.)r   AttributeErrorr   )r3   r   r!   r!   r"   r   ,  s
    
c                 C   s*   t | jdd| _t||| j| j}| S )z9Return a tuple of (POST QueryDict, FILES MultiValueDict).zEYou cannot alter upload handlers after the upload has been processed.)warning)r   r   r   rK   parse)r3   r,   Z	post_dataparserr!   r!   r"   parse_file_upload5  s    zHttpRequest.parse_file_uploadc              
   C   s   t | ds| jrtdtjd k	rDt| jdp2dtjkrDtdz| 	 | _
W n. tk
r } zt|j |W 5 d }~X Y nX t| j
| _| j
S )N_bodyz?You cannot access body after reading from request's data streamCONTENT_LENGTHr   z;Request body exceeded settings.DATA_UPLOAD_MAX_MEMORY_SIZE.)r   _read_startedr#   r	   ZDATA_UPLOAD_MAX_MEMORY_SIZEintr,   r=   r   readr   OSErrorr   argsr   _stream)r3   er!   r!   r"   bodyA  s(    
zHttpRequest.bodyc                 C   s   t  | _t | _d S r8   )r(   r   r   r   r2   r!   r!   r"   _mark_post_parse_errorZ  s    z"HttpRequest._mark_post_parse_errorc                 C   s   | j dkr&t| jdt  | _| _dS | jrBt| dsB|   dS | j	dkrt| drbt
| j}n| }z| | j|\| _| _W q tk
r   |    Y qX n@| j	dkrt| j| jdt  | _| _nt| jdt  | _| _dS )zFPopulate self._post and self._files if the content-type is a form typer*   )rK   Nr   zmultipart/form-dataz!application/x-www-form-urlencoded)r/   r(   r   r   r   r   r   r   r   r0   r   r   r   r,   r   r   )r3   datar!   r!   r"   _load_post_and_files^  s0    







z HttpRequest._load_post_and_filesc                 C   s6   t | dr2tdd | j D D ]}|  q$d S )Nr   c                 s   s   | ]}|d  V  qdS )r   Nr!   )r@   list_r!   r!   r"   rC     s     z$HttpRequest.close.<locals>.<genexpr>)r   r   from_iterabler   listsclose)r3   fr!   r!   r"   r     s    
zHttpRequest.closec              
   O   sJ   d| _ z| jj||W S  tk
rD } zt|j |W 5 d }~X Y nX d S NT)r   r   r   r   r   r   r3   r   kwargsr   r!   r!   r"   r     s
    zHttpRequest.readc              
   O   sJ   d| _ z| jj||W S  tk
rD } zt|j |W 5 d }~X Y nX d S r   )r   r   readliner   r   r   r   r!   r!   r"   r     s
    zHttpRequest.readlinec                 C   s   t | jdS )N    )iterr   r2   r!   r!   r"   __iter__  s    zHttpRequest.__iter__c                 C   s   t | S r8   )listr2   r!   r!   r"   	readlines  s    zHttpRequest.readlines)F)F)N)(r   r   r    r$   r   r   r4   r7   r   r:   r>   rE   rM   rS   r[   rP   r5   r`   r]   ri   rm   ru   rr   rx   propertyro   rQ   rK   setterr   r   r   r   r   r   r   r   r   r   r   r!   r!   r!   r"   r%   1   sX   	




)






&r%   c                       s@   e Zd ZdZddhZ fddZ fddZedd	 Z  Z	S )
r9   ZHTTP_rF   r   c                    s<   i }|  D ]\}}| |}|r|||< qt | d S r8   )itemsparse_header_namesuperr4   )r3   environr:   r~   rl   namer6   r!   r"   r4     s    

zHttpHeaders.__init__c                    s   t  |ddS )z:Allow header lookup using underscores in place of hyphens.r   -)r   __getitem__replacer3   rj   r   r!   r"   r     s    zHttpHeaders.__getitem__c                 C   s>   | | jr |t| jd  }n|| jkr.d S |dd S )Nr   r   )rq   HTTP_PREFIXlenUNPREFIXED_HEADERSr   title)clsr~   r!   r!   r"   r     s
    
zHttpHeaders.parse_header_name)
r   r   r    r   r   r4   r   classmethodr   __classcell__r!   r!   r   r"   r9     s   r9   c                       s   e Zd ZdZdZdZd) fdd	Zed*dd	Ze	d
d Z
e
jdd Z
dd Z fddZ fddZdd Zdd Z fddZd+ fdd	Z fddZ fddZ fdd Z fd!d"Zd, fd#d$	Zd%d& Zd-d'd(Z  ZS ).r(   a  
    A specialized MultiValueDict which represents a query string.

    A QueryDict can be used to represent GET or POST data. It subclasses
    MultiValueDict since keys in such data can be repeated, for instance
    in the data from a form with a <select multiple> field.

    By default QueryDicts are immutable, though the copy() method
    will always return a mutable copy.

    Both keys and values set on this class are converted from the given encoding
    (DEFAULT_CHARSET by default) to str.
    TNFc              
      s   t    |ptj| _|pd}d| jtjd}t|trhz|| j}W n t	k
rf   |d}Y nX z&t
|f|D ]\}}| || qvW n, tk
r } ztd|W 5 d }~X Y nX || _d S )Nr'   T)keep_blank_valuesrK   max_num_fieldsz
iso-8859-1zRThe number of GET/POST parameters exceeded settings.DATA_UPLOAD_MAX_NUMBER_FIELDS.)r   r4   r	   DEFAULT_CHARSETrK   ZDATA_UPLOAD_MAX_NUMBER_FIELDS
isinstancebytesdecodeUnicodeDecodeErrorr   
appendlistr{   r   _mutable)r3   Zquery_stringr&   rK   Zparse_qsl_kwargsrj   rl   r   r   r!   r"   r4     s,    

zQueryDict.__init__r'   c                 C   s2   | dd|d}|D ]}| || q|s.d|_|S )zt
        Return a new QueryDict with keys (may be repeated) from an iterable and
        values from value.
        r'   Tr&   rK   F)r   r   )r   iterablerl   r&   rK   qrj   r!   r!   r"   fromkeys  s    zQueryDict.fromkeysc                 C   s   | j d krtj| _ | j S r8   )r   r	   r   r2   r!   r!   r"   rK     s    
zQueryDict.encodingc                 C   s
   || _ d S r8   r   )r3   rl   r!   r!   r"   rK     s    c                 C   s   | j stdd S )Nz$This QueryDict instance is immutable)r   r   r2   r!   r!   r"   _assert_mutable	  s    zQueryDict._assert_mutablec                    s2   |    t|| j}t|| j}t || d S r8   )r   bytes_to_textrK   r   __setitem__r3   rj   rl   r   r!   r"   r     s    zQueryDict.__setitem__c                    s   |    t | d S r8   )r   r   __delitem__r   r   r!   r"   r     s    zQueryDict.__delitem__c                 C   s4   | j dd| jd}|  D ]\}}||| q|S Nr'   Tr   )r6   rK   r   setlist)r3   resultrj   rl   r!   r!   r"   __copy__  s    zQueryDict.__copy__c                 C   sP   | j dd| jd}||t| < |  D ]$\}}|t||t|| q&|S r   )r6   rK   idr   r   copydeepcopy)r3   memor   rj   rl   r!   r!   r"   __deepcopy__  s
    zQueryDict.__deepcopy__c                    s8       t| j} fdd|D }t || d S )Nc                    s   g | ]}t | jqS r!   )r   rK   )r@   eltr2   r!   r"   r   '  s     z%QueryDict.setlist.<locals>.<listcomp>)r   r   rK   r   r   )r3   rj   r   r   r2   r"   r   $  s    zQueryDict.setlistc                    s   |    t ||S r8   )r   r   setlistdefault)r3   rj   Zdefault_listr   r!   r"   r   *  s    zQueryDict.setlistdefaultc                    s2   |    t|| j}t|| j}t || d S r8   )r   r   rK   r   r   r   r   r!   r"   r   .  s    zQueryDict.appendlistc                    s   |    t j|f| S r8   )r   r   pop)r3   rj   r   r   r!   r"   r   4  s    zQueryDict.popc                    s   |    t  S r8   )r   r   popitemr2   r   r!   r"   r   8  s    zQueryDict.popitemc                    s   |    t   d S r8   )r   r   clearr2   r   r!   r"   r   <  s    zQueryDict.clearc                    s.   |    t|| j}t|| j}t ||S r8   )r   r   rK   r   
setdefault)r3   rj   rk   r   r!   r"   r   @  s    zQueryDict.setdefaultc                 C   s
   |  i S )z%Return a mutable copy of this object.)r   r2   r!   r!   r"   r   F  s    zQueryDict.copyc                    sb   g }r" jfdd ndd   D ]$\}| fdd|D  q2d|S )ah  
        Return an encoded string of all query string arguments.

        `safe` specifies characters which don't require quoting, for example::

            >>> q = QueryDict(mutable=True)
            >>> q['next'] = '/a&b/'
            >>> q.urlencode()
            'next=%2Fa%26b%2F'
            >>> q.urlencode(safe='/')
            'next=/a%26b/'
        c                    s   dt |  t | f S )Nz%s=%s)r   kv)safer!   r"   encode[  s    z#QueryDict.urlencode.<locals>.encodec                 S   s   t | |iS r8   )r   r   r!   r!   r"   r   `  s    c                 3   s,   | ]$}  jt| jV  qd S r8   )r   rK   r\   )r@   r   )r   r   r3   r!   r"   rC   d  s   z&QueryDict.urlencode.<locals>.<genexpr>&)r   rK   r   extendjoin)r3   r   outputr   r!   )r   r   r   r3   r"   r   J  s    
zQueryDict.urlencode)NFN)r'   FN)N)N)N)r   r   r    r$   r   r   r4   r   r   r   rK   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r!   r!   r   r"   r(     s0   

r(   c                   @   s8   e Zd Zdd Zdd Zdd Zedd Zd	d
 ZdS )	MediaTypec                 C   s4   t |r|dnd\}| _|d\| _}| _d S )Nasciir   rb   )r   r   params	partition	main_typesub_type)r3   Zmedia_type_raw_lineZ	full_typer   r!   r!   r"   r4   l  s    
zMediaType.__init__c                 C   s:   d dd | j D }d| j| jr0d| j nd|f S )Nr'   c                 s   s$   | ]\}}d || df V  qdS )z; %s=%sr   N)r   )r@   r   r   r!   r!   r"   rC   s  s    z$MediaType.__str__.<locals>.<genexpr>ra   z/%s)r   r   r   r   r   )r3   Z
params_strr!   r!   r"   __str__r  s    
zMediaType.__str__c                 C   s   d| j j| f S )Nz<%s: %s>)r6   r    r2   r!   r!   r"   r7   |  s    zMediaType.__repr__c                 C   s   | j dko| jdkS )N*)r   r   r2   r!   r!   r"   is_all_types  s    zMediaType.is_all_typesc                 C   s6   | j r
dS t|}| j|jkr2| jd|jhkr2dS dS )NTr   F)r   r   r   r   )r3   otherr!   r!   r"   r?     s    zMediaType.matchN)	r   r   r    r4   r   r7   r   r   r?   r!   r!   r!   r"   r   k  s   

r   c                 C   s   t | trt| |dS | S dS )u   
    Convert bytes objects to strings, using the given encoding. Illegally
    encoded input characters are replaced with Unicode "unknown" codepoint
    (�).

    Return any non-bytes objects without change.
    r   N)r   r   r\   )srK   r!   r!   r"   r     s    
r   c                 C   sx   |   } t| sdS | d dkr*| dfS | dd}t|dkrF|n
|d df\}}|d	rl|d
d n|}||fS )z
    Return a (domain, port) tuple from a given host.

    Returned domain is lowercased. If the host is invalid, the domain will be
    empty.
    )r'   r'   ]r'   :r   rn   r   .N)lowerhost_validation_rer?   rsplitr   re   )rR   rt   rX   rY   r!   r!   r"   rU     s    
 rU   c                    s   t  fdd|D S )a4  
    Validate the given host for this site.

    Check that the host looks valid and matches a host or host pattern in the
    given list of ``allowed_hosts``. Any pattern beginning with a period
    matches a domain and all its subdomains (e.g. ``.example.com`` matches
    ``example.com`` and any subdomain), ``*`` matches anything, and anything
    else must match exactly.

    Note: This function assumes that the given host is lowercased and has
    already had the port, if any, stripped off.

    Return ``True`` for a valid host, ``False`` otherwise.
    c                 3   s    | ]}|d kpt  |V  qdS )r   N)r   )r@   patternrR   r!   r"   rC     s    z validate_host.<locals>.<genexpr>)rD   )rR   rW   r!   r   r"   rV     s    rV   c                 C   s   dd |  dD S )Nc                 S   s   g | ]}|  rt|qS r!   )r}   r   )r@   tokenr!   r!   r"   r     s      z'parse_accept_header.<locals>.<listcomp>ry   )r|   )r~   r!   r!   r"   r<     s    r<   )9rH   r   ior   	itertoolsr   urllib.parser   r   r   r   r   Zdjango.confr	   Zdjango.corer
   Zdjango.core.exceptionsr   r   r   r   Zdjango.core.filesr   Zdjango.http.multipartparserr   r   Zdjango.utils.datastructuresr   r   r   Zdjango.utils.encodingr   r   Zdjango.utils.functionalr   Zdjango.utils.httpr   r   Zdjango.utils.regex_helperr   Zmultipartparserr   objectri   r   r   r   	Exceptionr#   r%   r9   r(   r   r   rU   rV   r<   r!   r!   r!   r"   <module>   s@   
  w ,$