Your IP : 216.73.216.196
B
��d^5% � . @ sJ d Z ddlmZmZ ddlZddlmZ ddlmZ ddl m
Z
m Z m Z ddl m
Z
mZ ddl mZ dd lmZmZmZ dd
lmZ ed �\ZZZd Zeej�G d
d� d��Z d)dd�Z ej dej dej dej!dej"dej#dej$dej%dej&dej'dej(d ej)d ej*d ej+d ej,d ej-d!ej.d"ej/d#ej0d$ej1d%ej2d&ej3d'ej4d(iZ5dS )*z>
Base functionality useful to various parts of Twisted Names.
� )�division�absolute_importN)� implementer)�dns)�DNSFormatError�DNSServerError� DNSNameError)�DNSNotImplementedError�DNSQueryRefusedError)�DNSUnknownError)�defer�error�
interfaces)�Logger� )� r r c
@ sV e Zd ZdZe� Zejeej e
ej e ej
eejeiZdZdd� Zdd� Zd>dd�Zd d
� Zd?d d �Zd@d
d�ZdAdd�ZdBdd�ZdCdd�ZdDdd�Z dEdd�Z dFdd�Z dGdd �Z dHd d �Z dId d �Z!dJd!d"�Z"dKd#d$�Z#dLd%d&�Z$dMd'd(�Z%dNd)d*�Z&dOd+d,�Z'dPd-d.�Z(dQd/d0�Z)dRd1d2�Z*dSd3d4�Z+dTd5d6�Z,dUd7d8�Z-dVd:d;�Z.d<d=� Z/dS )W� ResolverBaseaN
L{ResolverBase} is a base class for implementations of
L{interfaces.IResolver} which deals with a lot
of the boilerplate of implementing all of the lookup methods.
@cvar _errormap: A C{dict} mapping DNS protocol failure response codes
to exception classes which will be used to represent those failures.
Nc C s0 i | _ x$t �� D ]\}}t| |�| j |< qW d S )N)� typeToMethod�items�getattr)�self�k�vr r �G/opt/alt/python37/lib64/python3.7/site-packages/twisted/names/common.py�__init__4 s zResolverBase.__init__c C s | j �|t�S )z�
Convert a response code (one of the possible values of
L{dns.Message.rCode} to an exception instance representing it.
@since: 10.0
)� _errormap�getr )r Z responseCoder r r �exceptionForCode: s z ResolverBase.exceptionForCodec
C sd y| j |j }W n< tk
rL | jjd|d� t�| j|jjt j
|j|�S X t�||jj|�S d S )Nz:Query of unknown type {query.type} for {query.name.name!r})�query) r �type�KeyError�_log�debugr Z
maybeDeferred�_lookup�namer �IN)r r �timeout�methodr r r r D s zResolverBase.queryc C s t �td��S )NzResolverBase._lookup)r Zfail�NotImplementedError)r r$ �clsr r& r r r r# Q s zResolverBase._lookupc C s | � t�|�tjtj|�S )N)r# r � domainStringr% �A)r r$ r& r r r �
lookupAddressU s zResolverBase.lookupAddressc C s | � t�|�tjtj|�S )N)r# r r* r% �AAAA)r r$ r& r r r �lookupIPV6AddressY s z ResolverBase.lookupIPV6Addressc C s | � t�|�tjtj|�S )N)r# r r* r% �A6)r r$ r& r r r �lookupAddress6] s zResolverBase.lookupAddress6c C s | � t�|�tjtj|�S )N)r# r r* r% �MX)r r$ r& r r r �lookupMailExchangea s z ResolverBase.lookupMailExchangec C s | � t�|�tjtj|�S )N)r# r r* r% �NS)r r$ r& r r r �lookupNameserverse s z ResolverBase.lookupNameserversc C s | � t�|�tjtj|�S )N)r# r r* r% �CNAME)r r$ r& r r r �lookupCanonicalNamei s z ResolverBase.lookupCanonicalNamec C s | � t�|�tjtj|�S )N)r# r r* r% �MB)r r$ r& r r r �
lookupMailBoxm s zResolverBase.lookupMailBoxc C s | � t�|�tjtj|�S )N)r# r r* r% �MG)r r$ r& r r r �lookupMailGroupq s z ResolverBase.lookupMailGroupc C s | � t�|�tjtj|�S )N)r# r r* r% �MR)r r$ r& r r r �lookupMailRenameu s z ResolverBase.lookupMailRenamec C s | � t�|�tjtj|�S )N)r# r r* r% �PTR)r r$ r& r r r �
lookupPointery s zResolverBase.lookupPointerc C s | � t�|�tjtj|�S )N)r# r r* r% �SOA)r r$ r& r r r �lookupAuthority} s z ResolverBase.lookupAuthorityc C s | � t�|�tjtj|�S )N)r# r r* r% �NULL)r r$ r& r r r �
lookupNull� s zResolverBase.lookupNullc C s | � t�|�tjtj|�S )N)r# r r* r% �WKS)r r$ r& r r r �lookupWellKnownServices� s z$ResolverBase.lookupWellKnownServicesc C s | � t�|�tjtj|�S )N)r# r r* r% �SRV)r r$ r& r r r �
lookupService� s zResolverBase.lookupServicec C s | � t�|�tjtj|�S )N)r# r r* r% �HINFO)r r$ r& r r r �lookupHostInfo� s zResolverBase.lookupHostInfoc C s | � t�|�tjtj|�S )N)r# r r* r% �MINFO)r r$ r& r r r �lookupMailboxInfo� s z ResolverBase.lookupMailboxInfoc C s | � t�|�tjtj|�S )N)r# r r* r% �TXT)r r$ r& r r r �
lookupText� s zResolverBase.lookupTextc C s | � t�|�tjtj|�S )N)r# r r* r% �SPF)r r$ r& r r r �lookupSenderPolicy� s z ResolverBase.lookupSenderPolicyc C s | � t�|�tjtj|�S )N)r# r r* r% �RP)r r$ r& r r r �lookupResponsibility� s z!ResolverBase.lookupResponsibilityc C s | � t�|�tjtj|�S )N)r# r r* r% �AFSDB)r r$ r& r r r �lookupAFSDatabase� s z ResolverBase.lookupAFSDatabasec C s | � t�|�tjtj|�S )N)r# r r* r% �AXFR)r r$ r& r r r �
lookupZone� s zResolverBase.lookupZonec C s | � t�|�tjtj|�S )N)r# r r* r% �NAPTR)r r$ r& r r r � lookupNamingAuthorityPointer� s z)ResolverBase.lookupNamingAuthorityPointerc C s | � t�|�tjtj|�S )N)r# r r* r% � ALL_RECORDS)r r$ r& r r r �lookupAllRecords� s z ResolverBase.lookupAllRecords�
c C s* t �|�}| �||�}|�| j||� |S )N)r r* rX � addCallback�
_cbRecords)r r$ r& �effort�dr r r �
getHostByName� s
zResolverBase.getHostByNamec C s8 |\}}}t | t�|�|| | |�}|s4t�|��|S )N)�
extractRecordr �Namer
ZDNSLookupError)r �recordsr$ r\ �ans�auth�add�resultr r r r[ � s
zResolverBase._cbRecords)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)N)NrY )0�__name__�
__module__� __qualname__�__doc__r r! r ZEFORMATr ZESERVERr ZENAMEr ZENOTIMPr ZEREFUSEDr
r r r r r r# r, r. r0 r2 r4 r6 r8 r: r< r> r@ rB rD rF rH rJ rL rN rP rR rT rV rX r^ r[ r r r r r sJ
r rY c s� � sdS t td�r~x4|D ],}|j�kr|jtjkrt�tj|jj �S qW x4|D ],}|j�krN|jtj
krNt�tj|jj �S qNW x4|D ],}|j�kr�|jtj kr�t�tj |jj �S q�W xZ|D ]R}|j�kr�|jtj
kr�t| |jj|� d �}|�s| j|jjj� d d�S |S q�W xj|D ]b}|jtjk�r,�qddlm} |j|jjj�d�tjfgd��� ��fd d
�}���j��|�S W dS ) am
Resolve a name to an IP address, following I{CNAME} records and I{NS}
referrals recursively.
This is an implementation detail of L{ResolverBase.getHostByName}.
@param resolver: The resolver to use for the next query (unless handling
an I{NS} referral).
@type resolver: L{IResolver}
@param name: The name being looked up.
@type name: L{dns.Name}
@param answers: All of the records returned by the previous query (answers,
authority, and additional concatenated).
@type answers: L{list} of L{dns.RRHeader}
@param level: Remaining recursion budget. This is decremented at each
recursion. The query returns L{None} when it reaches 0.
@type level: L{int}
@returns: The first IPv4 or IPv6 address (as a dotted quad or colon
quibbles), or L{None} when no result is found.
@rtype: native L{str} or L{None}
N� inet_ntop� )r\ r )�client�ascii)Zserversc s$ | \}}}t ��|| | � d �S )Nrk )r_ )ra rb rc rd )�levelr$ �
nsResolverr r �
queryAgain s
z!extractRecord.<locals>.queryAgain)�hasattr�socketr$ r r r/ rj �AF_INET6�payload�addressr- r+ �AF_INETr5 r_ r^ r3 �
twisted.namesrl ZResolver�decodeZPORTr, rZ )Zresolverr$ Zanswersrn �rre rl rp r )rn r$ ro r r_ � s8
r_ r, r. r0 r4 r6 r@ r8 r: r< rB rD r> rH rJ r2 rL rN rP rR rF rV rT rX )rY )6ri �
__future__r r rr Zzope.interfacer rw r Ztwisted.names.errorr r r r r
r Ztwisted.internetr r
r Ztwisted.loggerr �rangeZ_ANSZ_AUTHZ_ADDZ EMPTY_RESULTZ IResolverr r_ r+ r- r/ r3 r5 r? r7 r9 r; rA rC r= rG rI r1 rK rM rO rQ rE rU rS rW r r r r r �<module> sJ '
C