dZddlmZddlZddlZddlZddlmZddlZ ddl Z ddl Z ddl Z ddl Z ddlZ ddlZ ddlZ ddlZ ddlZ ddlZ ddlmZmZmZGdde j0j2ZGd d eZGd d eZGd deZGddeZGddeZ de jBjDdedddfdZ#de jBjDdedddfdZ$eddfdZ%y)z DNS Zones.) generatorsN)BytesIO) string_types text_typePY3ceZdZdZy)BadZonezThe DNS zone is malformed.N__name__ __module__ __qualname____doc__lib/third_party/dns/zone.pyr r )s$rr ceZdZdZy)NoSOAz)The DNS zone has no SOA RR at its origin.Nr rrrrr.s3rrceZdZdZy)NoNSz+The DNS zone has no NS RRset at its origin.Nr rrrrr3s5rrceZdZdZy) UnknownOriginz!The DNS zone's origin is unknown.Nr rrrrr8s+rrceZdZdZej j ZgdZejjdfdZ dZ dZ dZdZd Zd Zd Zd Zd ZdZdZdZeZdZdZd#dZd#dZdZej<j>dfdZ ej<j>dfdZ!ej<j>fdZ"dZ#ej<j>fdZ$ej<j>fdZ%ej<jLej<j>fdZ'ej<jLej<j>fdZ(d$d Z)d$d!Z*d"Z+y)%ZoneaZA DNS zone. A Zone is a mapping from names to nodes. The zone object may be treated like a Python dictionary, e.g. zone[name] will retrieve the node associated with that name. The I{name} may be a dns.name.Name object, or it may be a string. In the either case, if the name is relative it is treated as relative to the origin of the zone. @ivar rdclass: The zone's rdata class; the default is class IN. @type rdclass: int @ivar origin: The origin of the zone. @type origin: dns.name.Name object @ivar nodes: A dictionary mapping the names of nodes in the zone to the nodes themselves. @type nodes: dict @ivar relativize: should names in the zone be relativized? @type relativize: bool @cvar node_factory: the factory used to create a new node @type node_factory: class or callable )rdclassoriginnodes relativizeTc4|zt|tr tjj |}n/t|tjj s t d|js t d||_||_ i|_ ||_ y)zInitialize a zone object. @param origin: The origin of the zone. @type origin: dns.name.Name object @param rdclass: The zone's rdata class; the default is class IN. @type rdclass: intNz2origin parameter must be convertible to a DNS namez)origin parameter must be an absolute name) isinstancerdnsname from_textName ValueError is_absoluterrrr)selfrrrs r__init__z Zone.__init__Ys  &,/++F3 6 ",--%%' !LMM   $rct|tsy|j|jk7s2|j|jk7s|j|jk7ryy)ziTwo zones are equal if they have the same origin, class, and nodes. @rtype: bool FT)r rrrrr'others r__eq__z Zone.__eq__nsG %& <<5== ( ;;%,, & :: $rc&|j| S)z6Are two zones not equal? @rtype: bool )r,r*s r__ne__z Zone.__ne__|s ;;u%%%rct|tr!tjj |d}n/t|tjj s t d|jrM|j|js t d|jr|j|j}|S)Nz0name parameter must be convertible to a DNS namez5name parameter must be a subdomain of the zone origin) r rr!r"r#r$KeyErrorr& is_subdomainrrr'r"s r_validate_namezZone._validate_names dL )88%%dD1DD#((--0MN N    $$T[[1KMMt{{3 rcB|j|}|j|SNr3rr'keys r __getitem__zZone.__getitem__s !!#&zz#rcD|j|}||j|<yr5r6)r'r8values r __setitem__zZone.__setitem__s!!#& 3rc@|j|}|j|=yr5r6r7s r __delitem__zZone.__delitem__s!!#& JJsOrc6|jjSr5)r__iter__r's rr@z Zone.__iter__szz""$$rcvtr|jjS|jjSr5)rrkeysiterkeysrAs rrDz Zone.iterkeyss) ::??$ $::&&( (rc6|jjSr5)rrCrAs rrCz Zone.keysszz  rcvtr|jjS|jjSr5)rrvalues itervaluesrAs rrHzZone.itervaluess+ ::$$& &::((* *rc6|jjSr5)rrGrAs rrGz Zone.valuesszz  ""rc6|jjSr5)ritemsrAs rrKz Zone.itemsszz!!rcZ|j|}|jj|Sr5)r3rgetr7s rrMzZone.gets%!!#&zz~~c""rc||jvSr5)rr*s r __contains__zZone.__contains__s ""rFc|j|}|jj|}|'|st|j }||j|<|S)arFind a node in the zone, possibly creating it. @param name: the name of the node to find @type name: dns.name.Name object or string @param create: should the node be created if it doesn't exist? @type create: bool @raises KeyError: the name is not known and create was not specified. @rtype: dns.node.Node object )r3rrMr0 node_factoryr'r"createnodes r find_nodezZone.find_nodesT""4(zz~~d# <$$&D#DJJt  rcP |j||}|S#t$rd}Y|SwxYw)aGet a node in the zone, possibly creating it. This method is like L{find_node}, except it returns None instead of raising an exception if the node does not exist and creation has not been requested. @param name: the name of the node to find @type name: dns.name.Name object or string @param create: should the node be created if it doesn't exist? @type create: bool @rtype: dns.node.Node object or None N)rUr0rRs rget_nodez Zone.get_nodes9 >>$/D  D  s  %%c^|j|}||jvr|j|=yy)zhDelete the specified node if it exists. It is not an error if the node does not exist. Nr6r2s r delete_nodezZone.delete_nodes1 ""4( 4::  4  rc@|j|}t|trtjj |}t|trtjj |}|j ||}|j|j|||S)aLook for rdata with the specified name and type in the zone, and return an rdataset encapsulating it. The I{name}, I{rdtype}, and I{covers} parameters may be strings, in which case they will be converted to their proper type. The rdataset returned is not a copy; changes to it will change the zone. KeyError is raised if the name or type are not found. Use L{get_rdataset} if you want to have None returned instead. @param name: the owner name to look for @type name: DNS.name.Name object or string @param rdtype: the rdata type desired @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string @param create: should the node and rdataset be created if they do not exist? @type create: bool @raises KeyError: the node or rdata could not be found @rtype: dns.rdataset.Rdataset object ) r3r rr! rdatatyper#rU find_rdatasetr)r'r"rdtypecoversrSrTs rr\zZone.find_rdatasets{8""4( fl +]],,V4F fl +]],,V4F~~dF+!!$,,GGrcT |j||||}|S#t$rd}Y|SwxYw)aLook for rdata with the specified name and type in the zone, and return an rdataset encapsulating it. The I{name}, I{rdtype}, and I{covers} parameters may be strings, in which case they will be converted to their proper type. The rdataset returned is not a copy; changes to it will change the zone. None is returned if the name or type are not found. Use L{find_rdataset} if you want to have KeyError raised instead. @param name: the owner name to look for @type name: DNS.name.Name object or string @param rdtype: the rdata type desired @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string @param create: should the node and rdataset be created if they do not exist? @type create: bool @rtype: dns.rdataset.Rdataset object or None N)r\r0)r'r"r]r^rSrdatasets r get_rdatasetzZone.get_rdatasets?6 ))$GH H s  ''c|j|}t|trtjj |}t|trtjj |}|j |}|>|j|j||t|dk(r|j|yyy)aDelete the rdataset matching I{rdtype} and I{covers}, if it exists at the node specified by I{name}. The I{name}, I{rdtype}, and I{covers} parameters may be strings, in which case they will be converted to their proper type. It is not an error if the node does not exist, or if there is no matching rdataset at the node. If the node has no rdatasets after the deletion, it will itself be deleted. @param name: the owner name to look for @type name: DNS.name.Name object or string @param rdtype: the rdata type desired @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string Nr) r3r rr!r[r#rWdelete_rdatasetrlenrY)r'r"r]r^rTs rrczZone.delete_rdataset4s,""4( fl +]],,V4F fl +]],,V4F}}T"    vv >4yA~  & rc|j|jk7r td|j|d}|j|y)a:Replace an rdataset at name. It is not an error if there is no rdataset matching I{replacement}. Ownership of the I{replacement} object is transferred to the zone; in other words, this method does not store a copy of I{replacement} at the node, it stores I{replacement} itself. If the I{name} node does not exist, it is created. @param name: the owner name @type name: DNS.name.Name object or string @param replacement: the replacement rdataset @type replacement: dns.rdataset.Rdataset z#replacement.rdclass != zone.rdclassTN)rr%rUreplace_rdataset)r'r" replacementrTs rrfzZone.replace_rdatasetUs@"   $,, .BC C~~dD) k*rc|j|}t|trtjj |}t|trtjj |}|j |j|j||}tjj||j||}|j||S)aLook for rdata with the specified name and type in the zone, and return an RRset encapsulating it. The I{name}, I{rdtype}, and I{covers} parameters may be strings, in which case they will be converted to their proper type. This method is less efficient than the similar L{find_rdataset} because it creates an RRset instead of returning the matching rdataset. It may be more convenient for some uses since it returns an object which binds the owner name to the rdata. This method may not be used to create new nodes or rdatasets; use L{find_rdataset} instead. KeyError is raised if the name or type are not found. Use L{get_rrset} if you want to have None returned instead. @param name: the owner name to look for @type name: DNS.name.Name object or string @param rdtype: the rdata type desired @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string @raises KeyError: the node or rdata could not be found @rtype: dns.rrset.RRset object ) r3r rr!r[r#rr\rrrsetRRsetupdate)r'r"r]r^r`ris r find_rrsetzZone.find_rrsetks<""4( fl +]],,V4F fl +]],,V4F::d#11$,,O dllFFC X rcR |j|||}|S#t$rd}Y|SwxYw)aJLook for rdata with the specified name and type in the zone, and return an RRset encapsulating it. The I{name}, I{rdtype}, and I{covers} parameters may be strings, in which case they will be converted to their proper type. This method is less efficient than the similar L{get_rdataset} because it creates an RRset instead of returning the matching rdataset. It may be more convenient for some uses since it returns an object which binds the owner name to the rdata. This method may not be used to create new nodes or rdatasets; use L{find_rdataset} instead. None is returned if the name or type are not found. Use L{find_rrset} if you want to have KeyError raised instead. @param name: the owner name to look for @type name: DNS.name.Name object or string @param rdtype: the rdata type desired @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string @rtype: dns.rrset.RRset object N)rlr0)r'r"r]r^ris r get_rrsetzZone.get_rrsets;8 OOD&&9E  E  s  &&c#Kt|trtjj |}t|trtjj |}|j D]O\}}|D]E}|tjj k(s |j|k(s0|j|k(s@||fGQyw)aReturn a generator which yields (name, rdataset) tuples for all rdatasets in the zone which have the specified I{rdtype} and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default, then all rdatasets will be matched. @param rdtype: int or string @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string N) r rr!r[r# iteritemsANYr]r^)r'r]r^r"rTrdss riterate_rdatasetszZone.iterate_rdatasetss fl +]],,V4F fl +]],,V4F NN,LT4S]]...JJ&(SZZ6-A+%-sB&C)C9 Cc#Kt|trtjj |}t|trtjj |}|j D]a\}}|D]W}|tjj k(s |j|k(s0|j|k(s@|D]}||j|fYcyw)aReturn a generator which yields (name, ttl, rdata) tuples for all rdatas in the zone which have the specified I{rdtype} and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default, then all rdatas will be matched. @param rdtype: int or string @type rdtype: int or string @param covers: the covered type (defaults to None) @type covers: int or string N) r rr!r[r#rprqr]r^ttl)r'r]r^r"rTrrrdatas riterate_rdataszZone.iterate_rdatass fl +]],,V4F fl +]],,V4F NN,LT4S]]...JJ&(SZZ6-A!$#SWWe44"%-sB&C)C9CNcJt|trt|d}d}nd}t|dd}|d}|"tj j |}d}n4t|tr|j |}n|}|j} |r*t|j}|jn|j}|D]z} || j| |j|} t| tr| j |} n| } | j} |j| |j|| |r|j#yy#t $r%|j| |j|YwxYw#|r|j#wwxYw) aWrite a zone to a file. @param f: file or string. If I{f} is a string, it is treated as the name of a file to open. @param sorted: if True, the file will be written with the names sorted in DNSSEC order from least to greatest. Otherwise the names will be written in whatever order they happen to have in the zone's dictionary. @param relativize: if True, domain names in the output will be relativized to the zone's origin (if possible). @type relativize: bool @param nl: The end of line string. If not specified, the output will use the platform's native end-of-line marker (i.e. LF on POSIX, CRLF on Windows, CR on Macintosh). @type nl: string or None wbTFencodingNzutf-8 )rr)r ropengetattroslinesepencodedecodelistrCsortrDto_textrrwrite TypeErrorclose) r'fsortedrnl want_closefile_encnl_bnamesnll_bs rto_filez Zone.to_filesm$ a &Q AJJ1j$/  H :::$$X.DB L )99X&DDB TYY[)  GOOAdkk/9$;a+((8,CC A GGCLGGDM   ! GGAJGGBK  s1 BF #"EF +F F F  F F"ct}|j|||||j}|j|S)aReturn a zone's text as though it were written to a file. @param sorted: if True, the file will be written with the names sorted in DNSSEC order from least to greatest. Otherwise the names will be written in whatever order they happen to have in the zone's dictionary. @param relativize: if True, domain names in the output will be relativized to the zone's origin (if possible). @type relativize: bool @param nl: The end of line string. If not specified, the output will use the platform's native end-of-line marker (i.e. LF on POSIX, CRLF on Windows, CR on Macintosh). @type nl: string or None )rrgetvaluer)r'rrr temp_buffer return_values rrz Zone.to_text$s=i  [&*b9"++- rc*|jrtjj}n |j}|j |tj jt|j |tj jty)zDo some simple checking of the zone's origin. @raises dns.zone.NoSOA: there is no SOA RR @raises dns.zone.NoNS: there is no NS RRset @raises KeyError: there is no origin node N) rr!r"emptyrrar[SOArNSrr2s r check_originzZone.check_origin9sj ??88>>D;;D   T3==#4#4 5 =K   T3==#3#3 4 <J =r)F)TTN),r r rrr!rTNoderQ __slots__ rdataclassINr(r,r.r3r9r<r>r@rDrCrHrGrKrprMrOrUrWrYr[NONEr\rarcrfrlrnrqrsrwrrrrrrrr=sR,88==L@*rrc<eZdZdZeddfdZdZdZdZdZ d Z y ) _MasterReadera(Read a DNS master file @ivar tok: The tokenizer @type tok: dns.tokenizer.Tokenizer object @ivar last_ttl: The last seen explicit TTL for an RR @type last_ttl: int @ivar last_ttl_known: Has last TTL been detected @type last_ttl_known: bool @ivar default_ttl: The default TTL from a $TTL directive or SOA RR @type default_ttl: int @ivar default_ttl_known: Has default TTL been detected @type default_ttl_known: bool @ivar last_name: The last name read @type last_name: dns.name.Name object @ivar current_origin: The current origin @type current_origin: dns.name.Name object @ivar relativize: should names in the zone be relativized? @type relativize: bool @ivar zone: the zone @type zone: dns.zone.Zone object @ivar saved_state: saved reader state (used when processing $INCLUDE) @type saved_state: list of (tokenizer, current_origin, last_name, file, last_ttl, last_ttl_known, default_ttl, default_ttl_known) tuples. @ivar current_file: the file object of the $INCLUDed file being parsed (None if no $INCLUDE is active). @ivar allow_include: is $INCLUDE allowed? @type allow_include: bool @ivar check_origin: should sanity checks of the origin node be done? The default is True. @type check_origin: bool FTc>t|trtjj |}||_||_||_d|_d|_ d|_ d|_ |j |_ |||||_ g|_d|_||_||_y)NrFr)r rr!r"r#tokcurrent_originrlast_ttllast_ttl_known default_ttldefault_ttl_known last_namezone saved_state current_file allow_includer)r'rrrr zone_factoryrrs rr(z_MasterReader.__init__ls fl +XX''/F$$ #!&,, ZH  *(rc\ |jj}|jry,r5)rrM is_eol_or_eof)r'tokens r _eat_linez_MasterReader._eat_line~s(HHLLNE""$rc | |jt|jjd}|j s:t j j|j|j|_ nF|jj}|jry|jj||j}|j|jjs|jy|j r%|j!|jj}|jj}|j#st j$j& t j(j|j}||_d|_|jj}|j#st j$j& t j4j|j}|jj}|j#st j$j& ||jj8k7rt j$j'd t j:j|j}|jj<j|}|3|jj?}||jj<|< t j@j|||j|jd}|j0sPtK|t jLjNjPjPr|jR|_d|_|jU|jj|j |jW} |jY||| d} | j[||y#t j(j.$r`|j,s+|j0st j$j'd|j0r |j2}n |j*}YwxYw#t j$j&$rt j$j&t6$r|jj8}YwxYw#t j$j'd|jzxYw#t j$j&$rtCjDdd\}} | tCjDdd\}} t j$j'd jGtI|tI| xYw) z(Process one line from a DNS master file.NT) want_leadingMissing default TTL valueRR class is not zone's classunknown rdatatype '%s'Fzcaught exception {}: {}).rrrrM is_whitespacer!r"r#r;rrungetr1rrrr is_identifier exception SyntaxErrorrurrBadTTLrrr Exceptionrr[rrQrvsysexc_infoformatstrr rdtypesrqrminimumchoose_relativityr^r\add) r'rr"rurr]rrdtyvar^rrs r_rr_linez_MasterReader._rr_lines7    &  $ /""$ XX// T002DNHHLLNE""$ HHNN5 !~~  !1!12 NN   ????499#3#34D ""$--++ + $''##EKK0CDM"&D HHLLNE&&(mm///) (nn..u{{;GHHLLNE&&(mm///) dii'' '--++,JK K 8]],,U[[9F IIOO   % 9 &&(A$%DIIOOD ! D$$Wfdhh%)%8%8%AB %%*R9L9L9P9P*Q "zzD %)D " TYY--t?oogvvt< Cqww~~ $''4+A+Amm//0KLL%%&&mm  $}}(( ,--++ + (ii''G ( 8--++(5;;68 8}}(( ||~bq)HRH D ||~bq)HR--++)00R#b'BD DsA7A;P4A-R)S57T&A9RRAS21S25.T#&BV;ctjd}tjd}tjd}|j|}|r|j\}}}} } |dk(rd}|j|} | r| j\}}}|dk(rd}d} d} |j|} | r1|j\}}}} |dk(rd}|jd} d} |s| s | s d}d}d}d} d}  dk7r t  | fS) Nz"^.*\$({(\+|-?)(\d+),(\d+),(.)}).*$z^.*\$({(\+|-?)(\d+)}).*$z^.*\$({(\+|-?)(\d+),(\d+)}).*$+rdr)recompilematchgroupsNotImplementedError) r'side is_generate1 is_generate2 is_generate3g1modsignoffsetwidthbaseg2g3s r _parse_modifyz_MasterReader._parse_modifys+zz"GH zz"=> zz"CD    % -/YY[ *Cvudrz    % " CvrzED    % ')yy{ $CvurzIIKNEDbBCDFED 3;%' 'D&%--rc N|jt|jj} tj j |j\}}}|jj}|jstjj |j}|jj}|jstjj tjj |j}||_ d|_ |jj}|jstjj tj"j |j}|jj}|jstjj ||j&j(k7rtjjd tj*j |j}|jj}|jstjj |j} |j-|\} } } } }|j-| \}}}}}t/||dz|D]R}| dk(r|t1| z}n| dk(r|t1| z }|dk(r|t1|z }n|dk(r|t1|z}t3j5t1| }t3j5t1|}|j7d | z|}| j7d |z|}tj8j ||j|_|j:}|j=|j&j>s|jAy|jBr%|jC|j&j>}|j&jDj|}|3|j&jG}||j&jD|< tjHj ||||jd }|jO|j&j>|jB|jQ}|jS|||d} | jU||Uy#tjjxYw#tjjxYw#tjj$r`|js+|jstjjd|jr |j }n |j}YrwxYw#tjj$rtjjt$$r|j&j(}Y_wxYw#t$$r-tjjd|jzwxYw#tjjxYw#tjj$rtKjLdd \}}|tKjLdd \}}tjjd t3|d t3|xYw)zRProcess one line containing the GENERATE statement from a DNS master file.NTrrrrr-z$%sFrzcaught exception z: )+rrrrMr!granger#r;rrrrurrrrrrrrrr[rrangeintrzfillreplacer"rr1rrrrrQrvrrrr^r\r)!r'rstartstopsteplhsrurr]rhslmodlsignloffsetlwidthlbasermodrsignroffsetrwidthrbaseilindexrindexlzfindexrzfindexr"rvrrrrr^rrs! r_generate_linez_MasterReader._generate_lines    &   , # 4 4U[[ A E4HHLLNE&&(mm///)  ,++CHHLLNE&&(mm///) $''##EKK0CDM"&D HHLLNE&&(mm///) (nn..u{{;GHHLLNE&&(mm///) dii'' '--++,JK K 9]],,U[[9FHHLLNE&&(mm///) ,++C/3.@.@.E+eWfe.2.@.@.E+eWfeudQh-A}S\)$S\)}S\)$S\)6{((V5H6{((V5H;;v9DKK$:E XX//d6I6IJDN>>D$$TYY%5%56 tyy'7'78 ##D)AyII**,() % DYY((&%)-)<)"1-R D <<>"1-Rmm//14R#b'1CDDsgA1T'!AU3A;U%0A-W%A-Y Y:-Z'UU"%A9W"!W"%AX>=X>6Y7:ZB \$c  |jjdd}|jr|j|jj t |j dkDrM|j jd\|_|_|_ |_|_ |_ |_ |_ n|jr|jr|jj!|j"ddk(r|j"j%}|dk(r|jj}|j'st(j*j-dt(j.j1|j"|_ d|_ |jj!nU|dk(rm|jj3|_|jj!|j4j6|j|j4_n|d k(r|j8r|jj}|j"}|jj}|j'rOt(j:j1|j"|j}|jj!n;|j=st(j*j-d |j}|j j?|j|j|j|j|j|j|j|jftA|d |_t(jBjE|j||_||_n;|d k(r|jGn%t(j*j-d |zdz|jjI||jKE |jNr|j4jOyy#t(j*j,$rK}|jjM\}}|d}t(j*j-d|||fzd}~wwxYw)zRead a DNS master file and build a zone object. @raises dns.zone.NoSOA: No SOA RR was found at the zone origin @raises dns.zone.NoNS: No NS RRset was found at the zone origin TNr$z$TTLzbad $TTLz$ORIGINz$INCLUDEzbad origin in $INCLUDErz $GENERATEzUnknown master file directive ''z syntax errorz %s:%d: %s)(rrMis_eofrrrdrpoprrrrrris_eol is_commentget_eolr;upperrr!rrrur#get_namerrrr"rappendr| tokenizer Tokenizerrrrwherer)r'rcfilename new_origindetail line_numbers rreadz_MasterReader.readsK ? T40<<>((4))//14++,q0483C3C3G3G3K1,*,)/ \\^%%'HH$$&[[^t+ ))+AG| $ $224"%--";";J"GG+.77+<+'. @type filename: string @param allow_include: is $INCLUDE allowed? @type allow_include: bool @param check_origin: should sanity checks of the origin node be done? The default is True. @type check_origin: bool @raises dns.zone.NoSOA: No SOA RR was found at the zone origin @raises dns.zone.NoNS: No NS RRset was found at the zone origin @rtype: dns.zone.Zone object z)rr)r!r rrrr) textrrrrrrrrreaders rr#r#sUD -- ! !$ 1C 3\)6(46F KKM ;;rc t}trd} nd} t||r||}t|| }d} n|d}d} t ||||||||} | r|j | S#| r|j wwxYw)aRead a master file and build a zone object. @param f: file or string. If I{f} is a string, it is treated as the name of a file to open. @param origin: The origin of the zone; if not specified, the first $ORIGIN statement in the master file will determine the origin of the zone. @type origin: dns.name.Name object or string @param rdclass: The zone's rdata class; the default is class IN. @type rdclass: int @param relativize: should names be relativized? The default is True @type relativize: bool @param zone_factory: The zone factory to use @type zone_factory: function returning a Zone @param filename: The filename to emit when describing where an error occurred; the default is '', or the value of I{f} if I{f} is a string. @type filename: string @param allow_include: is $INCLUDE allowed? @type allow_include: bool @param check_origin: should sanity checks of the origin node be done? The default is True. @type check_origin: bool @raises dns.zone.NoSOA: No SOA RR was found at the zone origin @raises dns.zone.NoNS: No NS RRset was found at the zone origin @rtype: dns.zone.Zone object rrUTzF)rrr r|r#r) rrrrrrrrstr_typeoptsrzs r from_filers>H !X  H DM  H  a*l | =  GGI H  GGI s AA3cd}|D]3}|L|r |j}n|jdj}|jdj}||||}|jD]}|jj |j} | s)|j } | |j|j<| j|j|j|jd} | j|j|D]/} | j|j|| j| 16|r|j|S)aConvert the output of a zone transfer generator into a zone object. @param xfr: The xfr generator @type xfr: generator of dns.message.Message objects @param relativize: should names be relativized? The default is True. It is essential that the relativize setting matches the one specified to dns.query.xfr(). @type relativize: bool @param check_origin: should sanity checks of the origin node be done? The default is True. @type check_origin: bool @raises dns.zone.NoSOA: No SOA RR was found at the zone origin @raises dns.zone.NoNS: No NS RRset was found at the zone origin @rtype: dns.zone.Zone object NrrT)ranswerr"rrrMrQr\r]r^ update_ttlrurrr) xfrrrrrrrrriznodezrdsrs rfrom_xfrr%@s" A  9!))hhqk))GVWDAXXEGGKK +E(&+ #&&u}}ell',||T;D OOEII &$$QXXz: &  Hr)&r __future__rrrr~ior dns.exceptionr!dns.namedns.nodedns.rdataclass dns.rdatatype dns.rdatadns.rdtypes.ANY.SOA dns.rrset dns.tokenizerdns.ttl dns.grange_compatrrrr DNSExceptionr rrrobjectrrrrr#rr%rrrr6s$! 11%cmm((% 4G4 676 ,G, J6JZO%FO%d  ):):D4!)Xcnn&7&7D4 t5 p $4' r