tfdZddlmZmZddlmZddlmZddlm Z m Z ddl m Z m Z mZmZee jGdd Zd S) zD IProxyParser implementation for version one of the PROXY protocol. )TupleUnion) implementer)address)_info _interfaces)InvalidNetworkProtocolInvalidProxyHeaderMissingAddressData convertErrorceZdZdZdZdZdZdZeeefZdZ dd Z d e de e eje fe d ffd Zed e dejfdZdS)V1Parserz PROXY protocol version one header parser. Version one of the PROXY protocol is a human readable format represented by a single, newline delimited binary string that contains all of the relevant source and destination data. sPROXYsUNKNOWNsTCP4sTCP6s returnNcd|_dS)N)buffer)selfs b/var/www/surfInsights/venv3-11/lib/python3.11/site-packages/twisted/protocols/haproxy/_v1parser.py__init__zV1Parser.__init__,s  rdataNNc|xj|z c_t|jdkr|j|jvrt|j|jd}t|dksdSd|_|}|}||}||fS)a Consume a chunk of data and attempt to parse it. @param data: A bytestring. @type data: L{bytes} @return: A two-tuple containing, in order, a L{_interfaces.IProxyInfo} and any bytes fed to the parser that followed the end of the header. Both of these values are None until a complete header is parsed. @raises InvalidProxyHeader: If the bytes fed to the parser create an invalid PROXY header. krrr)rlenNEWLINEr splitpopparse)rrlines remainingheaderinfos rfeedz V1Parser.feed/s" t t{  c ! !dl$+&E&E$&& &##DL!445zzA~~< IIKK zz&!!i  rlinec N|}d}d}d}d}d}d}ttt5|dd\}}dddn #1swxYwY||jkrtttt 5|dd\}}dddn #1swxYwY||jvrt ||jkrtj |ddSttt5|dd\}}dddn #1swxYwYttt5|dd\}}dddn #1swxYwYttt5|dd\}}dddn #1swxYwYttt5|dd}dddn #1swxYwY||j kr|tj |tj d|t|tj d|t|Stj |tjd|t|tjd|t|S)a Parse a bytestring as a full PROXY protocol header line. @param line: A bytestring that represents a valid HAProxy PROXY protocol header line. @type line: bytes @return: A L{_interfaces.IProxyInfo} containing the parsed data. @raises InvalidProxyHeader: If the bytestring does not represent a valid PROXY header. @raises InvalidNetworkProtocol: When no protocol can be parsed or is not one of the allowed values. @raises MissingAddressData: When the protocol is TCP* but the header does not contain a complete set of addresses and ports. N rrTCP)r ValueErrorr rPROXYSTRr ALLOWED_NET_PROTOS UNKNOWN_PROTOr ProxyInfor TCP4_PROTOr IPv4Addressdecodeint IPv6Address) clsr% originalLineproxyStrnetworkProtocol sourceAddr sourcePortdestAddrdestPorts rrzV1Parser.parseLsA(    *&8 9 9 1 1!ZZa00NHd 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 s| # #$&& & *&< = = 8 8$(JJtQ$7$7 !OT 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 #"8 8 8(** * c/ / /?<t<< < *&8 9 9 3 3#zz$22 J 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3*&8 9 9 1 1!ZZa00NHd 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1*&8 9 9 3 3#zz$22 J 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3*&8 9 9 + +zz$''*H + + + + + + + + + + + + + + + cn , ,?#E:+<+<+>+>JPP#E8??+<+typingrrzope.interfacertwisted.internetrrr _exceptionsr r r r IProxyParserrrBrrrIs  &&&&&&$$$$$$  [ %&&v v v v v v v '&v v v r