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� !`Nc @ sz d Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d e j j f d � � YZ d S( s DNS Dynamic Update Supporti����Nt Updatec B s� e Z e j j d d e j j d � Z d d d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d d d � Z RS( c C s� t t | � j � | j t j j t j j � O_ t | t t f � r^ t j j | � } n | | _ t | t � r� t j j | � } n | | _ | j | j | j | t j j d t d t �| d k r� | j | | d | �n d S( s� Initialize a new DNS Update object. @param zone: The zone which is being updated. @type zone: A dns.name.Name or string @param rdclass: The class of the zone; defaults to dns.rdataclass.IN. @type rdclass: An int designating the class, or a string whose value is the name of a class. @param keyring: The TSIG keyring to use; defaults to None. @type keyring: dict @param keyname: The name of the TSIG key to use; defaults to None. The key must be defined in the keyring. If a keyring is specified but a keyname is not, then 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 keyring is used, unless they know the keyring contains only one key. @type keyname: dns.name.Name or string @param keyalgorithm: The TSIG algorithm to use; defaults to dns.tsig.default_algorithm. Constants for TSIG algorithms are defined in dns.tsig, and the currently implemented algorithms are HMAC_MD5, HMAC_SHA1, HMAC_SHA224, HMAC_SHA256, HMAC_SHA384, and HMAC_SHA512. @type keyalgorithm: string t createt force_uniquet algorithmN( t superR t __init__t flagst dnst opcodet to_flagst UPDATEt isinstancet strt unicodet namet from_textt origint rdataclasst zone_rdclasst find_rrsett questiont rdatatypet SOAt Truet Nonet use_tsig( t selft zonet rdclasst keyringt keynamet keyalgorithm( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR s ! ! c C sb | d k r | j } n | j � } | j | | | j | j | | t t � } | j | | � d S( s& Add a single RR to the update section.N( R t authorityt coversR R t rdtypeR t add( R R t ttlt rdt deletingt sectionR! t rrset( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyt _add_rrA s c G s� t | t t f � r- t j j | d � } n t | d t j j � r� xx| D]O } | ro | j | | j � n x* | D]" } | j | | j | d | �qv WqM Wn t | � } t | j d � � } t | d t j j � r*| r� | j | | d j � n x� | D] } | j | | | d | �qWn� | j d � } t | t � r]t j j | � } n | rv| j | | � n xH | D]@ } t j j | j | | | j � } | j | | | d | �q}Wd S( s� Add records. The first argument is the replace mode. If false, RRs are added to an existing RRset; if true, the RRset is replaced with the specified contents. The second argument is the section to add to. The third argument is always a name. The other arguments can be: - rdataset... - ttl, rdata... - ttl, rdtype, string...i R' N( R R R R R R R t rdatasett Rdatasett deleteR" R) R$ t listt intt popt rdatat RdataR R R ( R t replaceR' R t argst rdsR% R$ R" t s( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyt _addK s0 ' c G s | j t | j | | � d S( s� Add records. The first argument is always a name. The other arguments can be: - rdataset... - ttl, rdata... - ttl, rdtype, string...N( R6 t FalseR ( R R R3 ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR# s s c G s t | t t f � r- t j j | d � } n t | � d k r� | j | j | t j j t j j t j j t j j t t � } n�t | d t j j � r� xe| D]3 } x* | D]" } | j | d | t j j � q� Wq� Wn't | � } t | d t j j � r0x� | D]" } | j | d | t j j � qWn� | j d � } t | t t f � rit j j | � } n t | � d k r�| j | j | | j | t j j t j j t t � } nN xK | D]C } t j j | j | | | j � } | j | d | t j j � q�Wd S( s� Delete records. The first argument is always a name. The other arguments can be: - I{nothing} - rdataset... - rdata... - rdtype, [string...]i N( R R R R R R R t lenR R R t ANYR t NONER R* R+ R) R- R0 R1 R/ R R ( R R R3 R( R4 R% R" R5 ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR, ~ s6 ' # c G s | j t | j | | � d S( sQ Replace records. The first argument is always a name. The other arguments can be: - rdataset... - ttl, rdata... - ttl, rdtype, string... Note that if you want to replace the entire node, you should do a delete of the name followed by one or more calls to add.N( R6 R R ( R R R3 ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR2 � s c G s~ t | t t f � r- t j j | d � } n t | � d k r{ | j | j | t j j t j j t j j d t t � } n� t | d t j j � s� t | d t j j � s� t | � d k rt | d t j j � s� t | � } | j d d � n | j t | j | | � ng | d } t | t t f � rGt j j | � } n | j | j | t j j | t j j d t t � } d S( sB Require that an owner name (and optionally an rdata type, or specific rdataset) exists as a prerequisite to the execution of the update. The first argument is always a name. The other arguments can be: - rdataset... - rdata... - rdtype, string...i i N( R R R R R R R R8 R t answerR R9 R R: R R* R+ R0 R1 R- t insertR6 R7 ( R R R3 R( R" ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyt present� s* c C s� t | t t f � r- t j j | d � } n | d k ru | j | j | t j j t j j t j j d t t � } n] t | t t f � r� t j j | � } n | j | j | t j j | t j j d t t � } d S( s� Require that an owner name (and optionally an rdata type) does not exist as a prerequisite to the execution of the update.N( R R R R R R R R R; R R: R R9 R ( R R R" R( ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyt absent� s i�� c C s1 | d k r | j } n t t | � j | | � S( sc Return a string containing the update in DNS compressed wire format. @rtype: stringN( R R R R t to_wire( R R t max_size( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR? � s N( t __name__t __module__R R t INR t tsigt default_algorithmR R) R6 R# R, R2 R= R> R? ( ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyR s % ( + $ ( t __doc__t dns.messageR t dns.namet dns.opcodet dns.rdatat dns.rdataclasst dns.rdatasett dns.tsigt messaget MessageR ( ( ( s0 /usr/lib64/python2.7/site-packages/dns/update.pyt <module> s