BdZddlmZddlZddlZddlZGddeZy)z)DNS nodes. A node is a set of rdatasets.)StringIONceZdZdZdgZdZdZdZdZdZ dZ d Z e jjd fd Ze jjd fd Ze jjfd ZdZy)NodezA Node is a set of rdatasets. rdatasetscg|_yNrselfs lib/third_party/dns/node.py__init__z Node.__init__!s c t}|jD]D}t|dkDs|j|j|fi||jdF|j ddS)a&Convert a node to text format. Each rdataset at the node is printed. Any keyword arguments to this method are passed on to the rdataset's to_text() method. *name*, a ``dns.name.Name`` or ``text``, the owner name of the rdatasets. Returns a ``text``. r N)rrlenwriteto_textgetvalue)r namekwsrdss r rz Node.to_text%s` J>>C3x!|  D/B/0"zz|CR  rc6dtt|zdzS)Nz )stridr s r __repr__z Node.__repr__7sc"T(m+c11rc|jD]}||jvsy|jD]}||jvsyy)NFTr )r otherrds r __eq__z Node.__eq__:sE..B(!//B'"rc&|j| Sr)r")r r s r __ne__z Node.__ne__Fs;;u%%%rc,t|jSr)rrr s r __len__z Node.__len__Is4>>""rc,t|jSr)iterrr s r __iter__z Node.__iter__LsDNN##rFc|jD]}|j|||s|cS|sttjj ||}|jj ||S)aFind an rdataset matching the specified properties in the current node. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int``, the covered type. Usually this value is dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or dns.rdatatype.RRSIG, then the covers value will be the rdata type the SIG/RRSIG covers. The library treats the SIG and RRSIG types as if they were a family of types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much easier to work with than if RRSIGs covering different rdata types were aggregated into a single RRSIG rdataset. *create*, a ``bool``. If True, create the rdataset if it is not found. Raises ``KeyError`` if an rdataset of the desired type and class does not exist and *create* is not ``True``. Returns a ``dns.rdataset.Rdataset``. )rmatchKeyErrordnsrdatasetRdatasetappendr rdclassrdtypecoverscreaters r find_rdatasetzNode.find_rdatasetOs^4>>Cyy&&1 "Nll##GV4 c" rcT |j||||}|S#t$rd}Y|SwxYw)aGet an rdataset matching the specified properties in the current node. None is returned if an rdataset of the specified type and class does not exist and *create* is not ``True``. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int``, the covered type. Usually this value is dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or dns.rdatatype.RRSIG, then the covers value will be the rdata type the SIG/RRSIG covers. The library treats the SIG and RRSIG types as if they were a family of types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much easier to work with than if RRSIGs covering different rdata types were aggregated into a single RRSIG rdataset. *create*, a ``bool``. If True, create the rdataset if it is not found. Returns a ``dns.rdataset.Rdataset`` or ``None``. N)r6r,r1s r get_rdatasetzNode.get_rdatasetrs?4 $$WfffEC  C  s  ''cf|j|||}||jj|yy)aDDelete the rdataset matching the specified properties in the current node. If a matching rdataset does not exist, it is not an error. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int``, the covered type. N)r8rremove)r r2r3r4rs r delete_rdatasetzNode.delete_rdatasets48 ? NN ! !# & rct|tjjs t d|j |j |j|j|jj|y)aReplace an rdataset. It is not an error if there is no rdataset matching *replacement*. Ownership of the *replacement* object is transferred to the node; in other words, this method does not store a copy of *replacement* at the node, it stores *replacement* itself. *replacement*, a ``dns.rdataset.Rdataset``. Raises ``ValueError`` if *replacement* is not a ``dns.rdataset.Rdataset``. zreplacement is not an rdatasetN) isinstancer-r.r/ ValueErrorr;r2r3r4rr0)r replacements r replace_rdatasetzNode.replace_rdatasets]+s||'<'<==> > [00+2D2D(// 1 k*rN)__name__ __module__ __qualname____doc__ __slots__r rrr"r$r&r)r- rdatatypeNONEr6r8r;r@rr rrsx' I!$2 &#$58MM4F4F"!F47==3E3E!@7:mm6H6H'"+rr) rDior dns.rdatasetr- dns.rdatatype dns.rendererobjectrrHrr rNs$$0[+6[+r