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DNS Zones.i����(t
generatorsN(tStringIOtBadZonecBseZdZRS(sThe zone is malformed.(t__name__t
__module__t__doc__(((s./usr/lib64/python2.7/site-packages/dns/zone.pyR'stNoSOAcBseZdZRS(s%The zone has no SOA RR at its origin.(RRR(((s./usr/lib64/python2.7/site-packages/dns/zone.pyR+stNoNScBseZdZRS(s'The zone has no NS RRset at its origin.(RRR(((s./usr/lib64/python2.7/site-packages/dns/zone.pyR/st
UnknownOrigincBseZdZRS(sThe zone's origin is unknown.(RRR(((s./usr/lib64/python2.7/site-packages/dns/zone.pyR3stZonecBs�eZdZejjZddddgZejj	e
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    A Zone is a mapping from names to nodes.  The zone object may be
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    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
    trdclasstorigintnodest
relativizecCs(||_||_i|_||_dS(s�Initialize a zone object.

        @param origin: The origin of the zone.
        @type origin: dns.name.Name object
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((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__init__Rs			cCsQt|t�stS|j|jksI|j|jksI|j|jkrMtStS(siTwo zones are equal if they have the same origin, class, and
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RRtTrue(Rtother((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__eq___scCs|j|�S(s6Are two zones not equal?
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(RR((s./usr/lib64/python2.7/site-packages/dns/zone.pyt_validate_namets	cCs|j|�}|j|S(N(R R(Rtkey((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__getitem__�scCs |j|�}||j|<dS(N(R R(RR!tvalue((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__setitem__�scCs|j|�}|j|=dS(N(R R(RR!((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__delitem__�scCs
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itervalues(R((s./usr/lib64/python2.7/site-packages/dns/zone.pyR)�scCs
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|jj�S(N(Rt	iteritems(R((s./usr/lib64/python2.7/site-packages/dns/zone.pyR+�scCs
|jj�S(N(Rtitems(R((s./usr/lib64/python2.7/site-packages/dns/zone.pyR,�scCs|j|�}|jj|�S(N(R Rtget(RR!((s./usr/lib64/python2.7/site-packages/dns/zone.pyR-�scCs
||jkS(N(R(RR((s./usr/lib64/python2.7/site-packages/dns/zone.pyt__contains__�scCs\|j|�}|jj|�}|dkrX|s<t�n|j�}||j|<n|S(srFind 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
        N(R RR-RRtnode_factory(RRtcreatetnode((s./usr/lib64/python2.7/site-packages/dns/zone.pyt	find_node�s	cCs4y|j||�}Wntk
r/d}nX|S(s�Get 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(R2RR(RRR0R1((s./usr/lib64/python2.7/site-packages/dns/zone.pytget_node�s

cCs2|j|�}|jj|�r.|j|=ndS(shDelete the specified node if it exists.

        It is not an error if the node does not exist.
        N(R Rthas_key(RR((s./usr/lib64/python2.7/site-packages/dns/zone.pytdelete_node�scCs�|j|�}t|ttf�r9tjj|�}nt|ttf�rctjj|�}n|j||�}|j|j	|||�S(s�Look 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.rrset.RRset object
        (
R RRRRt	rdatatypeRR2t
find_rdatasetR
(RRtrdtypetcoversR0R1((s./usr/lib64/python2.7/site-packages/dns/zone.pyR7�scCs:y|j||||�}Wntk
r5d}nX|S(s�Look 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.rrset.RRset object
        N(R7RR(RRR8R9R0trdataset((s./usr/lib64/python2.7/site-packages/dns/zone.pytget_rdataset�s

cCs�|j|�}t|ttf�r9tjj|�}nt|ttf�rctjj|�}n|j|�}|dk	r�|j	|j
||�t|�dkr�|j|�q�ndS(s�Delete the rdataset matching I{rdtype} and I{covers}, if it
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        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
        iN(
R RRRRR6RR3Rtdelete_rdatasetR
tlenR5(RRR8R9R1((s./usr/lib64/python2.7/site-packages/dns/zone.pyR<scCsD|j|jkr!td��n|j|t�}|j|�dS(s: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
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t
ValueErrorR2Rtreplace_rdataset(RRtreplacementR1((s./usr/lib64/python2.7/site-packages/dns/zone.pyR?@scCs�|j|�}t|ttf�r9tjj|�}nt|ttf�rctjj|�}n|j|j|j	||�}tj
j||j	||�}|j|�|S(s�Look 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
        (
R RRRRR6RRR7R
trrsettRRsettupdate(RRR8R9R:RA((s./usr/lib64/python2.7/site-packages/dns/zone.pyt
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r2d}nX|S(sJLook 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
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        N(RDRR(RRR8R9RA((s./usr/lib64/python2.7/site-packages/dns/zone.pyt	get_rrset~s

ccs�t|ttf�r*tjj|�}nt|ttf�rTtjj|�}nxi|j�D][\}}xL|D]D}|tjjks�|j|krt|j	|krt||fVqtqtWqaWdS(s�Return a generator which yields (name, rdataset) tuples for
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        @param rdtype: int or string
        @type rdtype: int or string
        @param covers: the covered type (defaults to None)
        @type covers: int or string
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RRRRR6RR+tANYR8R9(RR8R9RR1trds((s./usr/lib64/python2.7/site-packages/dns/zone.pytiterate_rdatasets�s

ccs�t|ttf�r*tjj|�}nt|ttf�rTtjj|�}nx�|j�D]r\}}xc|D][}|tjjks�|j|krt|j	|krtx"|D]}||j
|fVq�WqtqtWqaWdS(s�Return a generator which yields (name, ttl, rdata) tuples for
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        then all rdatas will be matched.

        @param rdtype: int or string
        @type rdtype: int or string
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        @type covers: int or string
        N(RRRRR6RR+RFR8R9tttl(RR8R9RR1RGtrdata((s./usr/lib64/python2.7/site-packages/dns/zone.pytiterate_rdatas�s


cCstjdkrt}nt}|dkr3d}nd}t||�r`t||�}t}nt}z�|r�|j	�}|j
�n|j�}xc|D][}	||	j|	d|j
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�|j|�q�WWd|r|j�nXdS(sWrite a zone to a file.

        @param f: file or string.  If I{f} is a string, it is treated
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        @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.
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N(tsyst
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cCs9t�}|j||||�|j�}|j�|S(s�Return a zone's text as though it were written to a file.

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        @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
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cCss|jrtjj}n	|j}|j|tjj�dkrHt	�n|j|tjj
�dkrot�ndS(s�Do some simple checking of the zone's origin.

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RRtemptyRR;R6tSOARRtNSR(RR((s./usr/lib64/python2.7/site-packages/dns/zone.pytcheck_origins			N(.RRRRR1tNodeR/t	__slots__t
rdataclasstINRRRRR R"R$R%R'R&R(R)R*R+R,R-R.RR2R3R5R6tNONER7R;R<R?RDRERFRHRKRR_RSRf(((s./usr/lib64/python2.7/site-packages/dns/zone.pyR	7sJ
																
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d�ZRS(s�Read a DNS master file

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    @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)
    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?
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		 cCs{y�x�|jjtt�}|j�r�|jdk	rF|jj�nt|j�dkr�|jj	d�\|_|_
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}ntjjd|||f��nX|j%rw|jj%�ndS(s�Read a DNS master file and build a zone object.

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Cs_|dkrd}ntjj||�}t|||||d|d|�}	|	j�|	jS(srBuild a zone object from a master file format string.

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    @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
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    @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?
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    @type check_origin: bool
    @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
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    $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
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    @type check_origin: bool
    @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
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    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
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