o 2c*@sdZddlZddlZddlZddlZddlZddlZGdddejj Z GdddZ Gddde Z Gd d d e Z e je iZd d Zd dZddZddZe jZe jZe jZe jZe jZe jZe jZe jZe jZe jZdS)z EDNS OptionsNc@s@eZdZdZdZdZdZdZdZdZ dZ d Z d Z e d d Zd S) OptionType cCsdS)Ni)clsr r >/var/www/html/gps/gps/lib/python3.10/site-packages/dns/edns.py_maximum3szOptionType._maximumN)__name__ __module__ __qualname__NSIDDAUDHUN3UECSEXPIRECOOKIE KEEPALIVEPADDINGCHAIN classmethodrr r r rrsrc@sneZdZdZddZdddZeddZd d Zd d Z d dZ ddZ ddZ ddZ ddZddZdS)Optionz%Base class for all EDNS option types.cCst||_dS)zPInitialize an option. *otype*, an ``int``, is the option type. N)rmakeotype)selfr!r r r__init__<szOption.__init__NcCt)zUConvert an option to wire format. Returns a ``bytes`` or ``None``. NotImplementedErrorr"filer r rto_wireCszOption.to_wirecCr$)zBuild an EDNS option object from wire format. *otype*, an ``int``, is the option type. *parser*, a ``dns.wire.Parser``, the parser, which should be restructed to the option length. Returns a ``dns.edns.Option``. r%rr!parserr r rfrom_wire_parserKs zOption.from_wire_parsercCs,|}|}||krdS||krdSdS)zCompare an EDNS option with another option of the same type. Returns < 0 if < *other*, 0 if == *other*, and > 0 if > *other*. r)r))r"otherwireowirer r r_cmpXsz Option._cmpcCs,t|tsdS|j|jkrdS||dkS)NFr isinstancerr!r2r"r/r r r__eq__e  z Option.__eq__cCs,t|tsdS|j|jkrdS||dkS)NTrr3r5r r r__ne__lr7z Option.__ne__cCs(t|tr |j|jkr tS||dkSNrr4rr!NotImplementedr2r5r r r__lt__s  z Option.__lt__cCs(t|tr |j|jkr tS||dkSr9r:r5r r r__le__yr=z Option.__le__cCs(t|tr |j|jkr tS||dkSr9r:r5r r r__ge__r=z Option.__ge__cCs(t|tr |j|jkr tS||dkSr9r:r5r r r__gt__r=z Option.__gt__cCs|SN)to_textr"r r r__str__szOption.__str__rA)rrr__doc__r#r)rr,r2r6r8r<r>r?r@rDr r r rr8s     rcs>eZdZdZfddZd ddZddZed d ZZ S) GenericOptionzwGeneric Option Class This class is used for EDNS option types for which we have no better implementation. cs"t|tjj|d|_dS)NT)superr#dnsrdataRdata _as_bytesdata)r"r!rL __class__r rr#s zGenericOption.__init__NcCs|r ||jdS|jSrA)writerLr'r r rr)szGenericOption.to_wirecCs d|jS)Nz Generic %d)r!rCr r rrBs zGenericOption.to_textcCs|||SrA) get_remainingr*r r rr,szGenericOption.from_wire_parserrA) rrrrEr#r)rBrr, __classcell__r r rMrrFs  rFcsLeZdZdZdfdd ZddZedd Zdd d Ze d d Z Z S) ECSOptionz!EDNS Client Subnet (ECS, RFC7871)Nrc sTttjtj|}|tjkr5d|_ |durd}tj j |}tj j |dd}tj j |dd}n,|tjkr]d|_ |durCd}tj j |}tj j |dd}tj j |dd}ntd ||_||_||_tj||}tt|d }|d||_|d }|dkrtd t|jd ddd |>@}|jdd ||_dSdS)a*address*, a ``str``, is the client address information. *srclen*, an ``int``, the source prefix length, which is the leftmost number of bits of the address to be used for the lookup. The default is 24 for IPv4 and 56 for IPv6. *scopelen*, an ``int``, the scope prefix length. This value must be 0 in queries, and should be set in responses. N8rr- zBad address family @rBr.)rGr#rrrHinetaf_for_addresssocketAF_INET6familyrIrJ_as_ipv6_address_as_intAF_INET_as_ipv4_address ValueErroraddresssrclenscopelen inet_ptonintmathceiladdrdatastructpackord) r"rerfrgafrlnbytesnbitslastrMr rr#s<   zECSOption.__init__cCsd|j|j|jS)NzECS {}/{} scope/{})formatrerfrgrCr r rrBs zECSOption.to_textcCsd}|}d}t|dkr|d}nt|dkr+|d|kr&td||d}ntd||d}|dkrE|d\}}d}n|dkrR|d\}}}ntd|zt|}Wntyotdd |wzt|}Wntytd d |wt|||S) aConvert a string into a `dns.edns.ECSOption` *text*, a `str`, the text form of the option. Returns a `dns.edns.ECSOption`. Examples: >>> import dns.edns >>> >>> # basic example >>> dns.edns.ECSOption.from_text('1.2.3.4/24') >>> >>> # also understands scope >>> dns.edns.ECSOption.from_text('1.2.3.4/24/32') >>> >>> # IPv6 >>> dns.edns.ECSOption.from_text('2001:4b98::1/64/64') >>> >>> # it understands results from `dns.edns.ECSOption.to_text()` >>> dns.edns.ECSOption.from_text('ECS 1.2.3.4/24/32') rNr-rrSzcould not parse ECS from "{}"/zinvalid scope z"{}": scope must be an integerzinvalid srclen z"{}": srclen must be an integer)splitlenrdrtcountrirR)textoptional_prefixtokensecs_text n_slashesrerfscoper r r from_texts@           zECSOption.from_textcCs2td|j|j|j|j}|r||dS|S)N!HBB)rmrnr_rfrgrlrO)r"r(valuer r rr)s zECSOption.to_wirec Cs|d\}}}tt|d}||}|dkr)d|}tj|d|} n|dkrs8W