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__module__� __qualname__�__doc__� r r �/usr/lib/python3.6/name.pyr 4 s r c @ s e Zd ZdZdS )� BadEscapez8An escaped code in a text format of DNS name is invalid.N)r r r r r r r r r 9 s r c @ s e Zd ZdZdS )�
BadPointerz=A DNS compression pointer points forward instead of backward.N)r r r r r r r r r > s r c @ s e Zd ZdZdS )� BadLabelTypez2The label type in DNS name wire format is unknown.N)r r r r r r r r r C s r c @ s e Zd ZdZdS )�NeedAbsoluteNameOrOriginzvAn attempt was made to convert a non-absolute name to
wire when there was also a non-absolute (or missing) origin.N)r r r r r r r r r H s r c @ s e Zd ZdZdS )� NameTooLongz A DNS name is > 255 octets long.N)r r r r r r r r r N s r c @ s e Zd ZdZdS )� LabelTooLongz A DNS label is > 63 octets long.N)r r r r r r r r r S s r c @ s e Zd ZdZdS )�AbsoluteConcatenationz]An attempt was made to append anything other than the
empty name to an absolute DNS name.N)r r r r r r r r r X s r c @ s e Zd ZdZdS )�NoParentzMAn attempt was made to get the parent of the root name
or the empty name.N)r r r r r r r r r ^ s r c @ s e Zd ZdZdS )�
NoIDNA2008zLIDNA 2008 processing was requested but the idna module is not
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� IDNACodecz.Abstract base class for IDNA encoder/decoders.c C s d S )Nr )�selfr r r �__init__t s zIDNACodec.__init__c C s |j � jd�S )Ns xn--)�lower�
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IDNA2003CodeczIDNA 2003 encoder/decoder.Fc s t t| �j� || _dS )a Initialize the IDNA 2003 encoder/decoder.
@param strict_decode: If True, then IDNA2003 checking is done when
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@type strict_decode: bool
N)�superr2 r# �
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IDNA2008CodeczIDNA 2008 encoder/decoder.Fc s* t t| �j� || _|| _|| _|| _dS )a� Initialize the IDNA 2008 encoder/decoder.
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as described in Unicode Technical Standard #46
(U{http://unicode.org/reports/tr46/}). This parameter is only
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the mapping. The default is False
@type uts_46: bool
@param transitional: If True, use the "transitional" mode described
in Unicode Technical Standard #46. This parameter is only
meaningful if IDNA 2008 is in use. The default is False.
@type transitional: bool
@param allow_pure_ascii: If True, then a label which
consists of only ASCII characters is allowed. This is less strict
than regular IDNA 2008, but is also necessary for mixed names,
e.g. a name with starting with "_sip._tcp." and ending in an IDN
suffixm which would otherwise be disallowed. The default is False
@type allow_pure_ascii: bool
@param strict_decode: If True, then IDNA2008 checking is done when
decoding. This can cause failures if the name was encoded with
IDNA2003. The default is False.
@type strict_decode: bool
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r< s "().;\@$z"().;\@$c C s� t | t�rzd}t | t�r | j� } xTt| �D ]H}|tkrH|dt|� 7 }q*|dkrf|dk rf|t|�7 }q*|d| 7 }q*W |S d}xD| D ]<}|tkr�|d| 7 }q�|dkr�|dt|� 7 }q�||7 }q�W |S )zaEscape the characters in label which need it.
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isinstance�bytesr r- � bytearray�_escaped�chr�
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r0 c C s� t | �}d}d}d}xH| D ]@}t |�}||d 7 }|dkr>t�|dk rR|dkrR|}|d7 }qW |dkrjt�|dkr�||d kr�t�dS )a/ Check for empty labels in the middle of a label sequence,
labels that are too long, and for too many labels.
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in a position other than the end of the label sequencer r �? r7 � N���)�lenr r r )�labels�l�total�i�jr& Zllr r r �_validate_labels s
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rY c sD e Zd ZdZdgZ� fdd�Zdd� Zdd� Zd d
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<listcomp>H s z!Name.__init__.<locals>.<listcomp>rR N)r3 rZ � __setattr__�tuplerW rR )r" rR )r5 r r r# C s z
Name.__init__c C s t d��d S )Nz+object doesn't support attribute assignment)� TypeError)r" �name�valuer r r r^ L s zName.__setattr__c C s
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Name.__copy__c C s t tj| j|��S )N)rZ �copy�deepcopyrR )r" �memor r r � __deepcopy__R s zName.__deepcopy__c C s
d| j iS )NrR )rR )r" r r r � __getstate__U s zName.__getstate__c s$ t t| �jd|d � t| j� d S )NrR )r3 rZ r^ rW rR )r" �state)r5 r r � __setstate__X s zName.__setstate__c C s t | j�dko| jd dkS )zXIs the most significant label of this name the root label?
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r � *)rQ rR )r" r r r �is_wildc s z Name.is_wildc C sJ t d�}x4| jD ]*}x$t|j� �D ]}||d> | 7 }q"W qW t|t �S )zHReturn a case-insensitive hash of the name.
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|| fS )a� Compare two names, returning a 3-tuple (relation, order, nlabels).
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and is one of: dns.name.NAMERELN_NONE,
dns.name.NAMERELN_SUPERDOMAIN, dns.name.NAMERELN_SUBDOMAIN,
dns.name.NAMERELN_EQUAL, or dns.name.NAMERELN_COMMONANCESTOR
I{order} is < 0 if self < other, > 0 if self > other, and ==
0 if self == other. A relative name is always less than an
absolute name. If both names have the same relativity, then
the DNSSEC order relation is used to order them.
I{nlabels} is the number of significant labels that the two names
have in common.
r r rP rP ) rk �
NAMERELN_NONErQ rR r$ �NAMERELN_COMMONANCESTOR�NAMERELN_SUPERDOMAIN�NAMERELN_SUBDOMAIN�NAMERELN_EQUAL)
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zName.fullcomparec C s( | j |�\}}}|tks |tkr$dS dS )zoIs self a subdomain of other?
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TF)r{ ru rv )r" rw �nr�o�nlr r r � is_subdomain� s zName.is_subdomainc C s( | j |�\}}}|tks |tkr$dS dS )zqIs self a superdomain of other?
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TF)r{ rt rv )r" rw r| r} r~ r r r �is_superdomain� s zName.is_superdomainc C s t dd� | jD ��S )z�Return a name which is equal to the current name, but is in
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@rtype: dns.name.Name object
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z Name.__eq__c C s$ t |t�r | j|�d dkS dS d S )Nr r T)rG rZ r{ )r" rw r r r �__ne__� s
z Name.__ne__c C s$ t |t�r | j|�d dk S tS d S )Nr r )rG rZ r{ �NotImplemented)r" rw r r r �__lt__� s
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z Name.__le__c C s$ t |t�r | j|�d dkS tS d S )Nr r )rG rZ r{ r� )r" rw r r r �__ge__� s
z Name.__ge__c C s$ t |t�r | j|�d dkS tS d S )Nr r )rG rZ r{ r� )r" rw r r r �__gt__� s
z Name.__gt__c C s d| j � d S )Nz
<DNS name �>)�__str__)r" r r r �__repr__� s z
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| j d�S )NF)�to_text)r" r r r r� � s z Name.__str__Fc C sp t | j�dkrtd�S t | j�dkr:| jd dkr:td�S |rV| j� rV| jdd� }n| j}djtt|��}|S ) z�Convert name to text format.
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root label) for absolute names. The default is False.
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a� Convert name to Unicode text format.
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@param omit_final_dot: If True, don't emit the final dot (denoting the
root label) for absolute names. The default is False.
@type omit_final_dot: bool
@param idna_codec: IDNA encoder/decoder. If None, the
IDNA_2003_Practical encoder/decoder is used. The IDNA_2003_Practical
decoder does not impose any policy, it just decodes punycode, so if
you don't want checking for compliance, you can use this decoder for
IDNA2008 as well.
@type idna_codec: dns.name.IDNA
@rtype: string
r �@r r7 r� Nc s g | ]}� j |��qS r )r. )r[ r\ )�
idna_codecr r r] ) s z#Name.to_unicode.<locals>.<listcomp>rP )rQ rR rk �IDNA_2003_Practicalr� )r" r� r� rS r )r� r �
to_unicode s zName.to_unicodec C sX | j � s:|dks|j � r t�t| j�}|jt|j�� n| j}dd� |D �}dj|�S )a Convert name to a format suitable for digesting in hashes.
The name is canonicalized and converted to uncompressed wire format.
@param origin: If the name is relative and origin is not None, then
origin will be appended to it.
@type origin: dns.name.Name object
@raises NeedAbsoluteNameOrOrigin: All names in wire format are
absolute. If self is a relative name, then an origin must be supplied;
if it is missing, then this exception is raised
@rtype: string
Nc S s* g | ]"}t jd t|� t|�|j� ��qS )z!B%ds)�struct�packrQ r$ )r[ r\ r r r r] @ s z&Name.to_digestable.<locals>.<listcomp>r7 )rk r �listrR �extendr� )r" �originrR Zdlabelsr r r �
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@type file: file or None
@param compress: The compression table. If None (the default) names
will not be compressed.
@type compress: dict
@param origin: If the name is relative and origin is not None, then
origin will be appended to it.
@type origin: dns.name.Name object
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absolute. If self is a relative name, then an origin must be supplied;
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NTFr r i � z!Hi�? z!B)r rk r r� rR r� rZ �getr� r� �writerQ �tell�getvalue)
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t | j�S )z@The length of the name (in labels).
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relativize)r" rw r r r �__sub__� s z Name.__sub__c C sn t | j�}|dkr | tjjfS ||kr2tjj| fS |dk sB||krJtd��t| d| � �t| | d� �fS )a( Split a name into a prefix and suffix at depth.
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name.
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@rtype: tuple
r z0depth must be >= 0 and <= the length of the nameN)rQ rR �dnsra �emptyrX rZ )r" �depthrS r r r �split� s
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Name.splitc C s: | j � rt|�dkrt�t| j�}|jt|j�� t|�S )z�Return a new name which is the concatenation of self and other.
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r )rk rQ r r� rR r� rZ )r" rw rR r r r r� � s
zName.concatenatec C s0 |dk r(| j |�r(t| dt|� � �S | S dS )z�If self is a subdomain of origin, return a new name which is self
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N)r rZ rQ )r" r� r r r r� � s zName.relativizec C s | j � s| j|�S | S dS )z�If self is a relative name, return a new name which is the
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N)rk r� )r" r� r r r � derelativize� s
zName.derelativizeTc C s& |r |r| j |�S | j|�S n| S dS )a Return a name with the relativity desired by the caller. If
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false the name is derelativized.
@rtype: dns.name.Name object
N)r� r� )r" r� r� r r r �choose_relativity� s
zName.choose_relativityc C s& | t ks| tkrt�t| jdd� �S )z�Return the parent of the name.
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and thus has no parent.
r N)�rootr� r rZ rR )r" r r r �parent� s z Name.parent)F)FN)N)NNN)NT))r r r r � __slots__r# r^ rc rg rh rj rk rm rq r{ r r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r; r r )r5 r rZ 7 sJ =
8
rZ r7 c C s� t | t�std��|dkp"t |t�s,td��g }d}d}d}d}|dkrLt}| dkrXd} | �rz| dkrptd g�S x�| D ]�}|r�|dkr�|j� r�t|�}|d
7 }q�||7 }d}n@|j� s�t�|d 9 }|t|�7 }|d
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�|j |j |�� d}qv|dk�r:d}d}d}qv||7 }qvW |�rPt�t |�dk�rp|j |j |�� n
|j d � t |�dk�s�|d d k�r�|dk �r�|j
t|j�� t|�S )a� Convert unicode text into a Name object.
Labels are encoded in IDN ACE form.
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@type text: Unicode string
@param origin: The origin to append to non-absolute names.
@type origin: dns.name.Name
@param idna_codec: IDNA encoder/decoder. If None, the default IDNA 2003
encoder/decoder is used.
@type idna_codec: dns.name.IDNA
@rtype: dns.name.Name object
z0input to from_unicode() must be a unicode stringNz origin must be a Name or Noner6 Fr r� r� r7 r �
r � 。� ．� ｡rD T)r� r� r� r� rP )rG r rX rZ � IDNA_2003�isdigitrn r r rQ r �appendr- r� r� rR ) rM r� r� rR r& �escaping�edigitsrT r* r r r � from_unicode� sd
&r� c
C s� t | t�rt| ||�S t | t�s(td��|dkp8t |t�sBtd��g }d}d}d}d}| dkrbd} | �r�| dkrztdg�S x�t| �D ]�}tjd |�} |�r|dkr�| j � r�t
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|jd� t |�dk�s�|d dk�r�|dk �r�|jt|j�� t|�S )a} Convert text into a Name object.
@param text: The text to convert into a name.
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@param origin: The origin to append to non-absolute names.
@type origin: dns.name.Name
@param idna_codec: IDNA encoder/decoder. If None, the default IDNA 2003
encoder/decoder is used.
@type idna_codec: dns.name.IDNA
@rtype: dns.name.Name object
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|�|fS ) a^ Convert possibly compressed wire format into a Name.
@param message: the entire DNS message
@type message: string
@param current: the offset of the beginning of the name from the start
of the message
@type current: int
@raises dns.name.BadPointer: a compression pointer did not point backwards
in the message
@raises dns.name.BadLabelType: an invalid label type was encountered.
@returns: a tuple consisting of the name that was read and the number
of bytes of the wire format message which were consumed reading it
@rtype: (dns.name.Name object, int) tuple
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dns.exceptionr� Z dns.wiredataZ_compatr r r r r ro �AttributeError�calcsizerr rt ru rv rs Z exception� SyntaxErrorr r Z FormErrorr r Z DNSExceptionr r r r r r r �objectr! r2 r< rI rJ rL r� ZIDNA_2003_Strictr� ZIDNA_2008_PracticalZIDNA_2008_UTS_46ZIDNA_2008_StrictZIDNA_2008_TransitionalZ IDNA_2008r0 rW rY rZ r� r� r� r� r� r r r r �<module> st
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