U  W[' ã@sNdZddlmZmZddlmZmZmZdd„ZeGdd„de ƒƒZ dgZ dS) z2 An API for storing HTTP header names and values. é)ÚdivisionÚabsolute_import)Ú comparableÚcmpÚunicodecCsd dd„| d¡Dƒ¡S)a Return a byte string which is capitalized using '-' as a word separator. @param name: The name of the header to capitalize. @type name: L{bytes} @return: The given header capitalized using '-' as a word separator. @rtype: L{bytes} ó-cSsg|] }| ¡‘qS©)Ú capitalize)Ú.0Zwordrrú:/usr/lib/python3/dist-packages/twisted/web/http_headers.pyÚ sz#_dashCapitalize..)ÚjoinÚsplit)Únamerrr Ú_dashCapitalizes rc@s eZdZdZdddddddd œZd)d d „Zd d„Zdd„Zdd„Zdd„Z dd„Z dd„Z dd„Z dd„Z dd„Zdd „Zd!d"„Zd*d#d$„Zd%d&„Zd'd(„Zd S)+ÚHeadersaŸ Stores HTTP headers in a key and multiple value format. Most methods accept L{bytes} and L{unicode}, with an internal L{bytes} representation. When passed L{unicode}, header names (e.g. 'Content-Type') are encoded using ISO-8859-1 and header values (e.g. 'text/html;charset=utf-8') are encoded using UTF-8. Some methods that return values will return them in the same type as the name given. If the header keys or values cannot be encoded or decoded using the rules above, using just L{bytes} arguments to the methods of this class will ensure no decoding or encoding is done, and L{Headers} will treat the keys and values as opaque byte strings. @cvar _caseMappings: A L{dict} that maps lowercase header names to their canonicalized representation. @ivar _rawHeaders: A L{dict} mapping header names as L{bytes} to L{list}s of header values as L{bytes}. s Content-MD5sDNTsETagsP3PsTEsWWW-AuthenticatesX-XSS-Protection)s content-md5sdntsetagsp3psteswww-authenticatesx-xss-protectionNcCs0i|_|dk r,| ¡D]\}}| ||¡qdS)N)Ú _rawHeadersÚitemsÚ setRawHeaders)ÚselfZ rawHeadersrÚvaluesrrr Ú__init__;szHeaders.__init__cCsd|jj|jfS)zR Return a string fully describing the headers set on this object. z%s(%r))Ú __class__Ú__name__r©rrrr Ú__repr__BszHeaders.__repr__cCs,t|tƒr(tt|j ¡ƒt|j ¡ƒƒStS)zu Define L{Headers} instances as being equal to each other if they have the same raw headers. )Ú isinstancerrÚsortedrrÚNotImplemented)rÚotherrrr Ú__cmp__Is    þzHeaders.__cmp__cCs t|tƒr| ¡ d¡S| ¡S)a" Encode the name of a header (eg 'Content-Type') to an ISO-8859-1 encoded bytestring if required. @param name: A HTTP header name @type name: L{unicode} or L{bytes} @return: C{name}, encoded if required, lowercased @rtype: L{bytes} z iso-8859-1)rrÚlowerÚencode©rrrrr Ú _encodeNameUs zHeaders._encodeNamecCst|tƒr| d¡S|S)a Encode a single header value to a UTF-8 encoded bytestring if required. @param value: A single HTTP header value. @type value: L{bytes} or L{unicode} @return: C{value}, encoded if required @rtype: L{bytes} Úutf8)rrr")rÚvaluerrr Ú _encodeValuees  zHeaders._encodeValuecCs"g}|D]}| | |¡¡q|S)aZ Encode a L{list} of header values to a L{list} of UTF-8 encoded bytestrings if required. @param values: A list of HTTP header values. @type values: L{list} of L{bytes} or L{unicode} (mixed types allowed) @return: C{values}, with each item encoded if required @rtype: L{list} of L{bytes} )Úappendr'©rrZ newValuesr&rrr Ú _encodeValuests zHeaders._encodeValuescCs"g}|D]}| | d¡¡q|S)a Decode a L{list} of header values into a L{list} of Unicode strings. @param values: A list of HTTP header values. @type values: L{list} of UTF-8 encoded L{bytes} @return: C{values}, with each item decoded @rtype: L{list} of L{unicode} r%)r(Údecoder)rrr Ú _decodeValues†s zHeaders._decodeValuescCs | |j¡S)zg Return a copy of itself with the same headers set. @return: A new L{Headers} )rrrrrr Úcopy—sz Headers.copycCs| |¡|jkS)a Check for the existence of a given header. @type name: L{bytes} or L{unicode} @param name: The name of the HTTP header to check for. @rtype: L{bool} @return: C{True} if the header exists, otherwise C{False}. )r$rr#rrr Ú hasHeader s zHeaders.hasHeadercCs|j | |¡d¡dS)zÄ Remove the named header from this header object. @type name: L{bytes} or L{unicode} @param name: The name of the HTTP header to remove. @return: L{None} N)rÚpopr$r#rrr Ú removeHeader­s zHeaders.removeHeadercCs<t|tƒstd|t|ƒfƒ‚| |¡}| |¡|j|<dS)aw Sets the raw representation of the given header. @type name: L{bytes} or L{unicode} @param name: The name of the HTTP header to set the values for. @type values: L{list} of L{bytes} or L{unicode} strings @param values: A list of strings each one being a header value of the given name. @return: L{None} z?Header entry %r should be list but found instance of %r insteadN)rÚlistÚ TypeErrorÚtyper$r*r)rrrrrr r¹s  ÿ zHeaders.setRawHeaderscCs4| |¡}|dk r| |¡n|g}| ||¡dS)a Add a new raw value for the given header. @type name: L{bytes} or L{unicode} @param name: The name of the header for which to set the value. @type value: L{bytes} or L{unicode} @param value: The value to set for the named header. N)Ú getRawHeadersr(r)rrr&rrrr Ú addRawHeaderÎs  zHeaders.addRawHeadercCs8| |¡}|j ||¡}t|tƒr4||k r4| |¡S|S)a Returns a list of headers matching the given name as the raw string given. @type name: L{bytes} or L{unicode} @param name: The name of the HTTP header to get the values of. @param default: The value to return if no header with the given C{name} exists. @rtype: L{list} of strings, same type as C{name} (except when C{default} is returned). @return: If the named header is present, a L{list} of its values. Otherwise, C{default}. )r$rÚgetrrr,)rrÚdefaultZ encodedNamerrrr r4âs   zHeaders.getRawHeadersccs(|j ¡D]\}}| |¡|fVq dS)zµ Return an iterator of key, value pairs of all headers contained in this object, as L{bytes}. The keys are capitalized in canonical capitalization. N)rrÚ_canonicalNameCaps)rÚkÚvrrr ÚgetAllRawHeadersúszHeaders.getAllRawHeaderscCs|j |t|ƒ¡S)a Return the canonical name for the given header. @type name: L{bytes} @param name: The all-lowercase header name to capitalize in its canonical form. @rtype: L{bytes} @return: The canonical name of the header. )Ú _caseMappingsr6rr#rrr r8s zHeaders._canonicalNameCaps)N)N)rÚ __module__Ú __qualname__Ú__doc__r<rrr r$r'r*r,r-r.r0rr5r4r;r8rrrr rs0ù       rN) r?Z __future__rrZtwisted.python.compatrrrrÚobjectrÚ__all__rrrr Úsw