o 2c@sndZddlZddlZddlZddlZddlZddlZddlZddl Zddl Zddl Zddl Zddl ZddlZddlZddlZddlZddlZddlZddlZddlZddlZGdddejjZGdddejjZGdddejjZGd d d ejjZGd d d ejjZGd ddejjZGdddejjZ GdddejjZ!GdddejjZ"GdddejjZ#Gdddejj$Z%Gdddej&j'Z(dZ)dZ*GdddZ+Gdd d Z,Gd!d"d"e+Z-d#d$Z.d%d&Z/Gd'd(d(Z0  * * *d:d+d,Z1Gd-d.d.Z2 * d;d0d1Z3dz DNS MessagesNc@eZdZdZdS) ShortHeaderz2The DNS packet passed to from_wire() is too short.N__name__ __module__ __qualname____doc__r r A/var/www/html/gps/gps/lib/python3.10/site-packages/dns/message.pyr,rc@r) TrailingJunkzEThe DNS packet passed to from_wire() has extra junk at the end of it.Nrr r r r r 0r r c@r)UnknownHeaderFieldzVThe header field name was not recognized when converting from text into a message.Nrr r r r r 4r r c@r)BadEDNSzLAn OPT record occurred somewhere other than the additional data section.Nrr r r r r9r rc@r)BadTSIGzWA TSIG record occurred somewhere other than the end of the additional data section.Nrr r r r r>r rc@r)UnknownTSIGKeyz(A TSIG with an unknown key was received.Nrr r r r rCr rc@seZdZdZdhZddZdS) TruncatedzThe truncated flag is set.messagecC |jdS)zbAs much of the message as could be processed. Returns a ``dns.message.Message``. r)kwargsselfr r r rLs zTruncated.messageN)rrrr supp_kwargsrr r r r rGs rc@r)NotQueryResponsez%Message is not a response to a query.Nrr r r r rTr rc@r) ChainTooLongzThe CNAME chain is too long.Nrr r r r rXr rc@r)AnswerForNXDOMAINz.The rcode is NXDOMAIN but an answer was found.Nrr r r r r\r rc@r)NoPreviousNamezNo previous name was known.Nrr r r r r_r rc@s,eZdZdZdZdZdZdZeddZ dS) MessageSectionzMessage sectionsrcCsdSNrr )clsr r r _maximumjzMessageSection._maximumN) rrrrQUESTIONANSWER AUTHORITY ADDITIONAL classmethodr"r r r r rcsric@seZdZdZeZdWddZeddZej ddZedd Z e j d d Z ed d Z e j d d Z eddZ e j ddZ ddZ ddZdXddZddZddZddZddZd d!Zejjdd"d"fd#d$Zejjdd"d"fd%d&ZdYd(d)Zed*d+Zdd,dd'd-ejjfd.d/Zed0d1Z ed2d3Z!ed4d5Z"ed6d7Z#ed8d9Z$ed'e%dfd:d;Z&d'd'e%ddfdd?Z(ed@dAZ)e)j dBdAZ)edCdDZ*edEdFZ+dZdGdHZ,dIdJZ-dKdLZ.dMdNZ/dOdPZ0dQdRZ1dSdTZ2dUdVZ3dS)[MessagezA DNS message.NcCsj|dur tj|_n||_d|_ggggg|_d|_d|_d|_d|_ d|_ d|_ d|_ d|_ i|_dS)NrF)dnsentropy random_16idflagssectionsoptrequest_payloadkeyringtsig request_macxfrorigintsig_ctxindex)rr/r r r __init__ws zMessage.__init__cCr)z The question section.rr1rr r r question zMessage.questioncC||jd<dSNrr<rvr r r r=cCr)z The answer section.rr<rr r r answerr>zMessage.answercCr?)Nrr<rAr r r rDrCcCr)z The authority section.rr<rr r r authorityr>zMessage.authoritycCr?)Nrr<rAr r r rErCcCr)z The additional data section.rr<rr r r additionalr>zMessage.additionalcCr?r r<rAr r r rFrCcCsdt|jdS)Nz)reprr/rr r r __repr__szMessage.__repr__cCs|SN)to_textrr r r __str__szMessage.__str__Tc Ks:t}|d|j|dtj||dtj||dtj|j|j dkrX|d|j |j dkrP|dtj |j |d|j |j D] }|d |q[|jjD]'\}}|d |d ||D]}||j||fi||d qqm|d d S)zConvert the message to text. The *origin*, *relativize*, and any other keyword arguments are passed to the RRset ``to_wire()`` method. Returns a ``str``. zid %d z opcode %s z rcode %s z flags %s rzedns %s z eflags %s z payload %d z option %s ; N)ioStringIOwriter/r,opcoderKrcoder0edns ednsflags edns_to_textpayloadoptions _section_enum __members__itemssection_from_numbergetvalue) rr8 relativizekwsr2namewhichrrsetr r r rKs*      zMessage.to_textcCst|tsdS|j|jkrdS|j|jkrdSt|jD]#\}}|j|}|D] }||vr1dSq'|D] }||vr>dSq4qdS)zTwo messages are equal if they have the same content in the header, question, answer, and authority sections. Returns a ``bool``. FT) isinstancer*r/r0 enumerater1)rotherisection other_sectionnr r r __eq__s$    zMessage.__eq__cCs || SrJ)rl)rrgr r r __ne__ zMessage.__ne__cCs|jtjj@dks|j|jkstj|jtj|jkrdS|tjjtjjtjj tjj hvr:t |j dkr:dStj |jrCdS|j D] }||j vrPdSqF|j D] }||j vr^dSqTdS)zIIs *other* a response this message? Returns a ``bool``. rFT)r0r,QRr/rS from_flagsrTFORMERRSERVFAILNOTIMPREFUSEDlenr= is_update)rrgrkr r r is_responses0        zMessage.is_responsecCs2t|jD]\}}||ur||Sqtd)zReturn the "section number" of the specified section for use in indexing. *section* is one of the section attributes of this message. Raises ``ValueError`` if the section isn't known. Returns an ``int``. zunknown section)rfr1rZ ValueError)rrirh our_sectionr r r section_numbers  zMessage.section_numbercCs|j|}|j|S)aReturn the section list associated with the specified section number. *number* is a section number `int` or the text form of a section name. Raises ``ValueError`` if the section isn't known. Returns a ``list``. )rZmaker1)rnumberrir r r r]s zMessage.section_from_numberFc Cst|tr |} || }n||} | |||||f} |s@|jdur.|j| } | dur-| Sn|D]} | |||||r?| Sq0|sDttj |||||} | | |jdur]| |j| <| S)aPFind the RRset with the given attributes in the specified section. *section*, an ``int`` section number, or one of the section attributes of this message. This specifies the the section of the message to search. For example:: my_message.find_rrset(my_message.answer, name, rdclass, rdtype) my_message.find_rrset(dns.message.ANSWER, name, rdclass, rdtype) *name*, a ``dns.name.Name``, the name of the RRset. *rdclass*, an ``int``, the class of the RRset. *rdtype*, an ``int``, the type of the RRset. *covers*, an ``int`` or ``None``, the covers value of the RRset. The default is ``None``. *deleting*, an ``int`` or ``None``, the deleting value of the RRset. The default is ``None``. *create*, a ``bool``. If ``True``, create the RRset if it is not found. The created RRset is appended to *section*. *force_unique*, a ``bool``. If ``True`` and *create* is also ``True``, create a new RRset regardless of whether a matching RRset exists already. The default is ``False``. This is useful when creating DDNS Update messages, as order matters for them. Raises ``KeyError`` if the RRset was not found and create was ``False``. Returns a ``dns.rrset.RRset object``. N) reintr]rzr:get full_matchKeyErrorr,rdRRsetappend) rrirbrdclassrdtypecoversdeletingcreate force_uniquerzkeyrdr r r find_rrset-s0 &        zMessage.find_rrsetc Cs8z|||||||||} W| Styd} Y| Sw)a5Get the RRset with the given attributes in the specified section. If the RRset is not found, None is returned. *section*, an ``int`` section number, or one of the section attributes of this message. This specifies the the section of the message to search. For example:: my_message.get_rrset(my_message.answer, name, rdclass, rdtype) my_message.get_rrset(dns.message.ANSWER, name, rdclass, rdtype) *name*, a ``dns.name.Name``, the name of the RRset. *rdclass*, an ``int``, the class of the RRset. *rdtype*, an ``int``, the type of the RRset. *covers*, an ``int`` or ``None``, the covers value of the RRset. The default is ``None``. *deleting*, an ``int`` or ``None``, the deleting value of the RRset. The default is ``None``. *create*, a ``bool``. If ``True``, create the RRset if it is not found. The created RRset is appended to *section*. *force_unique*, a ``bool``. If ``True`` and *create* is also ``True``, create a new RRset regardless of whether a matching RRset exists already. The default is ``False``. This is useful when creating DDNS Update messages, as order matters for them. Returns a ``dns.rrset.RRset object`` or ``None``. N)rr) rrirbrrrrrrrdr r r get_rrsetks% zMessage.get_rrsetrc Ks|dur |jdur |j}|dkr|jdkr|j}nd}|dkr"d}n|dkr(d}tj|j|j||}|jD] }||j |j |j q6|j D]}|j tjj|fi|qF|jD]}|j tjj|fi|qX|jduru| tjj|j|jD]}|j tjj|fi|qx||jdurtj||j|jdtt|j||\}} |j|j|| tjj|j||r| |_|S)aReturn a string containing the message in DNS compressed wire format. Additional keyword arguments are passed to the RRset ``to_wire()`` method. *origin*, a ``dns.name.Name`` or ``None``, the origin to be appended to any relative names. If ``None``, and the message has an origin attribute that is not ``None``, then it will be used. *max_size*, an ``int``, the maximum size of the wire format output; default is 0, which means "the message's request payload, if nonzero, or 65535". *multi*, a ``bool``, should be set to ``True`` if this message is part of a multiple message sequence. *tsig_ctx*, a ``dns.tsig.HMACTSig`` or ``dns.tsig.GSSTSig`` object, the ongoing TSIG context, used when signing zone transfers. Raises ``dns.exception.TooBig`` if *max_size* was exceeded. Returns a ``bytes``. Nrii)r8r3r,rendererRendererr/r0r= add_questionrbrrrD add_rrsetr%rEr&r2r'rF write_headerr5signget_wirer4r}timer6clearaddr9) rr8max_sizemultir9r`rrdnew_tsigctxr r r to_wiresL           zMessage.to_wirec Cs8tjjjtjjtjj||||||| }tj|d|Sr@)r,rdtypesANYTSIG rdataclass rdatatyperd from_rdata) keyname algorithm time_signedfudgemac original_iderrorrgr5r r r _make_tsigs zMessage._make_tsig,r+c Cst|tjjr |}|j}n0t|r|||}n&t|tr"tj|}|dur,tt |}||}t|t r=tj|||}||_ |durG|j }| ||j jd|d||||_dS)aWhen sending, a TSIG signature using the specified key should be added. *key*, a ``dns.tsig.Key`` is the key to use. If a key is specified, the *keyring* and *algorithm* fields are not used. *keyring*, a ``dict``, ``callable`` or ``dns.tsig.Key``, is either the TSIG keyring or key to use. The format of a keyring dict is a mapping from TSIG key name, as ``dns.name.Name`` to ``dns.tsig.Key`` or a TSIG secret, a ``bytes``. If a ``dict`` *keyring* is specified but a *keyname* is not, the key used will be the first key in the *keyring*. Note that the order of keys in a dictionary is not defined, so applications should supply a keyname when a ``dict`` keyring is used, unless they know the keyring contains only one key. If a ``callable`` keyring is specified, the callable will be called with the message and the keyname, and is expected to return a key. *keyname*, a ``dns.name.Name``, ``str`` or ``None``, the name of thes TSIG key to use; defaults to ``None``. If *keyring* is a ``dict``, the key must be defined in it. If *keyring* is a ``dns.tsig.Key``, this is ignored. *fudge*, an ``int``, the TSIG time fudge. *original_id*, an ``int``, the TSIG original id. If ``None``, the message's id is used. *tsig_error*, an ``int``, the TSIG error code. *other_data*, a ``bytes``, the TSIG other data. *algorithm*, a ``dns.name.Name``, the TSIG algorithm to use. This is only used if *keyring* is a ``dict``, and the key entry is a ``bytes``. Nrr+)rer,r5Keyrbcallablestr from_textnextiterbytesr4r/rr) rr4rrr tsig_error other_datarrr r r use_tsigs$(      zMessage.use_tsigcCs|jr|jjSdSrJ)r5rbrr r r rzMessage.keynamecC|jr |jdjSdSr@)r5rrr r r keyalgorithm# zMessage.keyalgorithmcCrr@)r5rrr r r r*rz Message.maccCrr@)r5rrr r r r1rzMessage.tsig_errorcCs t|jSrJ)boolr5rr r r had_tsig8s zMessage.had_tsigcCs4tjjj|tjj|p d}tjtjjt ||S)Nr ) r,rrOPTrrdrrbrootr})r0rXrYr2r r r _make_opt<szMessage._make_optcCs|dus|dur d}n|durd}|dkrd|_d|_dS|dM}||d>O}|dur-g}|||||_|dur;|}||_dS)a6Configure EDNS behavior. *edns*, an ``int``, is the EDNS level to use. Specifying ``None``, ``False``, or ``-1`` means "do not use EDNS", and in this case the other parameters are ignored. Specifying ``True`` is equivalent to specifying 0, i.e. "use EDNS0". *ednsflags*, an ``int``, the EDNS flag values. *payload*, an ``int``, is the EDNS sender's payload field, which is the maximum size of UDP datagram the sender can handle. I.e. how big a response to this message can be. *request_payload*, an ``int``, is the EDNS payload size to use when sending this message. If not specified, defaults to the value of *payload*. *options*, a list of ``dns.edns.Option`` objects or ``None``, the EDNS options. NFrOTrl~r))r2r3r)rrUrVrXr3rYr r r use_ednsBs   zMessage.use_ednscCs|jr |jd@d?SdS)Nir)rO)r2rVrr r r rUksz Message.ednscCs|jr|jjSdSr@)r2ttlrr r r rVrrzMessage.ednsflagscCs*|jr ||j_dS|r|||_dSdSrJ)r2rrrAr r r rVys  cCs|jr |jdjSdSr@)r2rXrr r r rXrzMessage.payloadcCs|jr |jdjSdS)Nrr )r2rYrr r r rYrzMessage.optionscCs<|r |jtjjO_dS|jr|jtjjM_dSdS)a!Enable or disable 'DNSSEC desired' flag in requests. *wanted*, a ``bool``. If ``True``, then DNSSEC data is desired in the response, EDNS is enabled if required, and then the DO bit is set. If ``False``, the DO bit is cleared if EDNS is enabled. N)rVr,r0DOr2)rwantedr r r want_dnssecs  zMessage.want_dnsseccCstjt|jt|jS)z7Return the rcode. Returns an ``int``. )r,rTrpr}r0rVrr r r rTsz Message.rcodecCsLtj|\}}|jdM_|j|O_|jdM_|j|O_dS)zJSet the rcode. *rcode*, an ``int``, is the rcode to set. iiN)r,rTto_flagsr0rV)rrTvalueevaluer r r set_rcodes zMessage.set_rcodecCstjt|jS)z8Return the opcode. Returns an ``int``. )r,rSrpr}r0rr r r rSszMessage.opcodecCs(|jdM_|jtj|O_dS)zMSet the opcode. *opcode*, an ``int``, is the opcode to set. iN)r0r,rSr)rrSr r r set_opcodeszMessage.set_opcodecCs|SrJr )rrr r r _get_one_rr_per_rrsetr#zMessage._get_one_rr_per_rrsetcCs ||ddfSNFr )rrirbrrr r r _parse_rr_headerrnzMessage._parse_rr_headercCsl|tjjkr|tjks|js|tjjkrtn|tjj kr0|tjks.|tjj ks.||dkr0t ||ddfS)NrF) r,rrrr'r2rbrrrrr)rricountpositionrbrrr r r _parse_special_rr_headers       z Message._parse_special_rr_headerrJ)NT)NrFN)T)4rrrrrrZr;propertyr=setterrDrErFrIrLrKrlrmrwrzr]r,rNONErrr staticmethodrr5default_algorithmrrrrrrDEFAULT_EDNS_PAYLOADrrrUrVrXrYrrTrrSrrrrr r r r r*rs          "   ? ,B  ;      )        r*c@seZdZdZddZdS)ChainingResultaThe result of a call to dns.message.QueryMessage.resolve_chaining(). The ``answer`` attribute is the answer RRSet, or ``None`` if it doesn't exist. The ``canonical_name`` attribute is the canonical name after all chaining has been applied (this is the name as ``rrset.name`` in cases where rrset is not ``None``). The ``minimum_ttl`` attribute is the minimum TTL, i.e. the TTL to use if caching the data. It is the smallest of all the CNAME TTLs and either the answer TTL if it exists or the SOA TTL and SOA minimum values for negative answers. The ``cnames`` attribute is a list of all the CNAME RRSets followed to get to the canonical name. cCs||_||_||_||_dSrJ)canonical_namerD minimum_ttlcnames)rrrDrrr r r r; zChainingResult.__init__N)rrrrr;r r r r rs rc@seZdZddZddZdS) QueryMessagec Cs|jtjj@dkr tt|jdkrtjj|jd}|j}tj j }d}d}g}|t krz| |j ||j|j}t||j }WnAty|jtjjkr~z&| |j ||jtjj}||t||j }|D]}|j}|d7}WYq(ty}YYnwYnw|t krt|tjjkr|durt|dur|} z| |j| |jtjj} t|| j | dj}Wntyz| } Wn tjjyYYnwYnwqt||||S)aFollow the CNAME chain in the response to determine the answer RRset. Raises ``dns.message.NotQueryResponse`` if the message is not a response. Raises ``dns.message.ChainTooLong`` if the CNAME chain is too long. Raises ``dns.message.AnswerForNXDOMAIN`` if the rcode is NXDOMAIN but an answer was found. Raises ``dns.exception.FormError`` if the question count is not 1. Returns a ChainingResult object. rrN) r0r,rorrur= exception FormErrorrbrMAX_TTL MAX_CHAINrrDrrminrrCNAMErtargetrrTNXDOMAINrrESOAminimumparentNoParentr) rr=qnamemin_ttlrDrrcrrsetrdaunamesrrsetr r r resolve_chainingsx          zQueryMessage.resolve_chainingcCs |jS)aReturn the canonical name of the first name in the question section. Raises ``dns.message.NotQueryResponse`` if the message is not a response. Raises ``dns.message.ChainTooLong`` if the CNAME chain is too long. Raises ``dns.message.AnswerForNXDOMAIN`` if the rcode is NXDOMAIN but an answer was found. Raises ``dns.exception.FormError`` if the question count is not 1. )rrrr r r r:s zQueryMessage.canonical_nameN)rrrrrr r r r rs JrcCs ddl}dSr@) dns.update)r,r r r _maybe_import_updateKs rcCs.|tjjkrtS|tjjkrttjjStSrJ) r,rSQUERYrUPDATErupdate UpdateMessager*)rSr r r _message_factory_from_opcodeTs  rc@s8eZdZdZ   d ddZddZdd Zd d ZdS) _WireReaderaWire format reader. parser: the binary parser message: The message object being built initialize_message: Callback to set message parsing options question_only: Are we only reading the question? one_rr_per_rrset: Put each RR into its own RRset? keyring: TSIG keyring ignore_trailing: Ignore trailing junk at end of request? multi: Is this message part of a multi-message sequence? DNS dynamic updates. FNcCs<tj||_d|_||_||_||_||_||_ ||_ dSrJ) r,wireParserparserrinitialize_message question_onlyone_rr_per_rrsetignore_trailingr4r)rrrrrrr4rr r r r;ms z_WireReader.__init__c Csp|jj|}t|D]+}|j|jj}|jd\}}|j||||\}}}}|jj||||dddq dS)zhRead the next *qcount* records from the wire data and add them to the question section. z!HHTrrN) rr1rangerget_namer8 get_structrr)rrzqcountri_rrrr r r _get_questionys    z_WireReader._get_questionc Cs~|jj|}|j}t|D].}|jj}|j}|jjdur'||jj}n|}|j d\} } } } | t j j t j j fvrM|j||||| | \} } } }n |j||| | \} } } }|rk| dkrdt jjd}t j j}n&|j| t j| | |j|jj}Wdn1swY|}|jjr| t j jkrd}| t j j krt j|| ||j_q | t j j kr|jdurtdt|jtr|j |}t|t!rt j"#|||j$}nt%|jr||j|}n|j}|durtd|||j_t j"&|jj'|||t(t))|jj*||jj+|j, |j_+t j|d||j_"q |j-||| | || d|}|dur<| dkr6d} |.|| q dS)zRead the next I{count} records from the wire data and add them to the specified section. section: the section of the message to which to add records count: the number of records to read Nz!HHIHrTz"got signed message without keyringzkey '%s' unknowni)/rr1rrrcurrentrr8r_rr,rrrrrrrr restrict_tordatafrom_wire_parserrr7rrdrr2r4rredictr~rr5rrrvalidaterr}rr6r9rrr)rrzrrirrhrr_start absolute_namerbrrrrdlenremptyrrrrdr r r _get_sections                    z_WireReader._get_sectioncCs|jdkr t|jd\}}}}}}ttj|}||d|_tj ||j_ | |j|j |j |_ |tj||jrF|jS|tj||tj||tj||jsg|jdkrgt|jr{|jjr{|jjs{|jj|jj|jS)zNRead a wire format DNS message and build a dns.message.Message object. z!HHHHHHr/r)r remainingrrrr,rSrprr0Flagrrrrrr$rr r%r&r'rr rr9rrr)rr/r0rancountaucountadcountfactoryr r r reads*    z_WireReader.read)FFFNF)rrrrr;rr rr r r r r^s    Mrr+Fc sfdd} t|| ||| ||} z| } Wntjjy6| jr5| jjtjj@r5| r5t| jdw| jtjj@rE| rEt| d| S)aTConvert a DNS wire format message into a message object. *keyring*, a ``dns.tsig.Key`` or ``dict``, the key or keyring to use if the message is signed. *request_mac*, a ``bytes``. If the message is a response to a TSIG-signed request, *request_mac* should be set to the MAC of that request. *xfr*, a ``bool``, should be set to ``True`` if this message is part of a zone transfer. *origin*, a ``dns.name.Name`` or ``None``. If the message is part of a zone transfer, *origin* should be the origin name of the zone. If not ``None``, names will be relativized to the origin. *tsig_ctx*, a ``dns.tsig.HMACTSig`` or ``dns.tsig.GSSTSig`` object, the ongoing TSIG context, used when validating zone transfers. *multi*, a ``bool``, should be set to ``True`` if this message is part of a multiple message sequence. *question_only*, a ``bool``. If ``True``, read only up to the end of the question section. *one_rr_per_rrset*, a ``bool``. If ``True``, put each RR into its own RRset. *ignore_trailing*, a ``bool``. If ``True``, ignore trailing junk at end of the message. *raise_on_truncation*, a ``bool``. If ``True``, raise an exception if the TC bit is set. Raises ``dns.message.ShortHeader`` if the message is less than 12 octets long. Raises ``dns.message.TrailingJunk`` if there were octets in the message past the end of the proper DNS message, and *ignore_trailing* is ``False``. Raises ``dns.message.BadEDNS`` if an OPT record was in the wrong section, or occurred more than once. Raises ``dns.message.BadTSIG`` if a TSIG record was not the last record of the additional data section. Raises ``dns.message.Truncated`` if the TC flag is set and *raise_on_truncation* is ``True``. Returns a ``dns.message.Message``. cs|_|_|_|_dSrJ)r6r7r8r9rr8r6r9r7r r r)rz%from_wire..initialize_messager) rrr,rrrr0TCr)rr4r6r7r8r9rrrrraise_on_truncationrreadermr rr from_wires 9   rc@sFeZdZdZ  dddZddZd d Zd d Zd dZddZ dS) _TextReaderatText format reader. tok: the tokenizer. message: The message object being built. DNS dynamic updates. last_name: The most recently read name when building a message object. one_rr_per_rrset: Put each RR into its own RRset? origin: The origin for relative names relativize: relativize names? relativize_to: the origin to relativize to. FNTcCshd|_tjj||d|_d|_||_||_||_||_ d|_ d|_ d|_ t |_d|_tjj|_d|_dS)N idna_codecrOr)rr, tokenizer Tokenizertok last_namerr8r_ relativize_tor/rUrVrrXrTrSrr0)rtextr rr8r_r%r r r r;Os  z_TextReader.__init__cCsx|j}|j}|dkr|j|_n|dkr5 |j}|s(|j|n |jtj |jB|_qn|dkrI|j|_ |j |j d>B|_ nl|dkrs|j dkrUd|_ |j}|sf|j|n |j tj |jB|_ qVnB|dkr|j|_ |j dkrd|_ n/|d kr|j}tj ||_|jtj|jB|_n|d kr|j}tj ||_nt|jd S) z5Process one line from the text format header section.r/r0TrUr)eflagsrrXrSrTN)r#r~rget_intr/ is_identifierungetr0r,rrUrVedns_from_textrX get_stringrSrrTr get_eol)rrtokenwhatr&r r r _header_line`sV            z_TextReader._header_linecCs|jj|}|jjdd}|s|j||jj|j|j|_ |j }|dur(t |j}| s5t j jzt j|j}|j}| sJt j jWnt j jyXt j jtydt jj}Ynwt j|j}|j||||\}}}}|jj||||ddd|jdS)z7Process one line from the text format question section.T want_leadingNr)rr1r#r~ is_whitespaceas_namer8r_r%r$rr)r,r SyntaxErrorrrr ExceptionINrrrr-)rrzrir.rbrrrr r r _question_lines>      z_TextReader._question_linec Cs|jj|}|jjdd}|s|j||jj|j|j|_ |j }|dur(t |j}| s5t j jzt|jd}|j}| sIt j jWnt j jyWt j jtyad}Ynwzt j|j}|j}| swt j jWnt j jyt j jtyt jj}Ynwt j|j}|j||||\}}}} |j}| r|st j j| s|rt j j|s|j|t j|||j|jj|j|j} | } nd} t jj} |j||||| |d|j} | dur| | |dSdS)zfProcess one line from the text format answer, authority, or additional data sections. Tr1Nr) rr1r#r~r3r4r8r_r%r$rr)r,rr5r}rr6rrr7rr is_eol_or_eof UnexpectedEndr*rrrrrr) rrzrir.rbrrrrr rrrdr r r _rr_linesv               z_TextReader._rr_linecCs`t|j}||jd}|j|_|jdkr||j|j|j|jr'| |j|j r.|j |_ |S)Nrr) rrSr/r0rUrrVrXrTrr8)rrrr r r _make_messages    z_TextReader._make_messagecCs|j}d} |jdd}|rnW|r^|j}|dkr"|j}|jr)|j}n|}z!|j |}|jsA||_| |j |_ |t jkrJ|j}n|j}Wn tyWYnw|jq|j|||q|jsq||_|jS)zNRead a text format DNS message and build a dns.message.Message object.NrTHEADER)r0r#r~r9 is_commentrupperrr<rZrrrrr$r8r;r6r-r*)r line_methodrzr.urr r r rsD       " z_TextReader.read)FNTN) rrrrr;r0r8r;r<rr r r r rAs  *!> rTcCst||||||}|S)aConvert the text format message into a message object. The reader stops after reading the first blank line in the input to facilitate reading multiple messages from a single file with ``dns.message.from_file()``. *text*, a ``str``, the text format message. *idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder is used. *one_rr_per_rrset*, a ``bool``. If ``True``, then each RR is put into its own rrset. The default is ``False``. *origin*, a ``dns.name.Name`` (or ``None``), the origin to use for relative names. *relativize*, a ``bool``. If true, name will be relativized. *relativize_to*, a ``dns.name.Name`` (or ``None``), the origin to use when relativizing names. If not set, the *origin* value will be used. Raises ``dns.message.UnknownHeaderField`` if a header is unknown. Raises ``dns.exception.SyntaxError`` if the text is badly formed. Returns a ``dns.message.Message object`` )rr)r&r rr8r_r%rr r r r"s $rcCsPt}t|tr|t|}t|||WdS1s!wYdS)aRead the next text format message from the specified file. Message blocks are separated by a single blank line. *f*, a ``file`` or ``str``. If *f* is text, it is treated as the pathname of a file to open. *idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder is used. *one_rr_per_rrset*, a ``bool``. If ``True``, then each RR is put into its own rrset. The default is ``False``. Raises ``dns.message.UnknownHeaderField`` if a header is unknown. Raises ``dns.exception.SyntaxError`` if the text is badly formed. Returns a ``dns.message.Message object`` N) contextlib ExitStackrer enter_contextopenr)fr rstackr r r from_fileKs   $rHc Cst|tr tjj|| d}tjj|}tjj |}t } | j tj j O_ | j | j|||dddi} |dur=|| d<|durE|| d<|durM|| d<|durU|| d<| r]|dur]d }|| d <| jd i| | || S) aMake a query message. The query name, type, and class may all be specified either as objects of the appropriate type, or as strings. The query will have a randomly chosen query id, and its DNS flags will be set to dns.flags.RD. qname, a ``dns.name.Name`` or ``str``, the query name. *rdtype*, an ``int`` or ``str``, the desired rdata type. *rdclass*, an ``int`` or ``str``, the desired rdata class; the default is class IN. *use_edns*, an ``int``, ``bool`` or ``None``. The EDNS level to use; the default is None (no EDNS). See the description of dns.message.Message.use_edns() for the possible values for use_edns and their meanings. *want_dnssec*, a ``bool``. If ``True``, DNSSEC data is desired. *ednsflags*, an ``int``, the EDNS flag values. *payload*, an ``int``, is the EDNS sender's payload field, which is the maximum size of UDP datagram the sender can handle. I.e. how big a response to this message can be. *request_payload*, an ``int``, is the EDNS payload size to use when sending this message. If not specified, defaults to the value of *payload*. *options*, a list of ``dns.edns.Option`` objects or ``None``, the EDNS options. *idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder is used. Returns a ``dns.message.QueryMessage`` rTrNrVrXr3rYrrUr )rerr,rbrr RdataTyper{r RdataClassrr0RDrr=rr) rrrrrrVrXr3rYr rrr r r make_querygs0 -  rL rc Cs|jtjj@r tjdt|}||jd}tjj|jtjj@B|_|r0|jtjj O_| |t |j |_ |j dkrK|dd||j|jr`||j|j|d|d|j|j|_|S)a`Make a message which is a response for the specified query. The message returned is really a response skeleton; it has all of the infrastructure required of a response, but none of the content. The response's question section is a shallow copy of the query's question section, so the query's question RRsets should not be changed. *query*, a ``dns.message.Message``, the query to respond to. *recursion_available*, a ``bool``, should RA be set in the response? *our_payload*, an ``int``, the payload size to advertise in EDNS responses. *fudge*, an ``int``, the TSIG time fudge. *tsig_error*, an ``int``, the TSIG error. Returns a ``dns.message.Message`` object whose specific class is appropriate for the query. For example, if query is a ``dns.update.UpdateMessage``, response will be too. z&specified query message is not a queryrrNr+)r0r,rorrrrSr/rKRArlistr=rUrrXrrr4rrrr6)queryrecursion_available our_payloadrrrresponser r r make_responses"     rT) Nr+FNNFFFFF)NFNTNr)FrMrr)=rrBrPrdns.wirer,dns.ednsdns.enum dns.exception dns.flagsdns.name dns.opcode dns.entropy dns.rcode dns.rdatadns.rdataclass dns.rdatatype dns.rrset dns.rendererdns.ttldns.tsigdns.rdtypes.ANY.OPTdns.rdtypes.ANY.TSIGrrrr DNSExceptionr rrrrrrrr5renumIntEnumrrrr*rrrrrrrrrHrr7rLrTr$r%r&r'r r r r s  h\   Qb ) I .