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a k�h! � @ s` d Z ddlmZmZmZmZmZmZmZ ddl m Z ddl m Z ddl mZmZ ddlmZ ddlmZ ddlmZmZmZmZ dd lmZ dd lm Z dd l m Z e e�G d d � d ��Z e eeg�Z!e eg�ee eg�ee!eiZ"eeeeiZ#eed�Z$edediZ%e e�G dd� d��Z&e e�G dd� d��Z'e e�G dd� d��Z(e e�G dd� d��Z)dS )z= IPv6-aware hostname resolution. @see: L{IHostnameResolver} � )�AF_INET�AF_INET6� AF_UNSPEC� SOCK_DGRAM� SOCK_STREAM�gaierror� getaddrinfo)� implementer)� _idnaBytes)� IPv4Address� IPv6Address)�Deferred)�DNSLookupError)�IHostnameResolver�IHostResolution�IResolutionReceiver�IResolverSimple)�deferToThreadPool)�Logger)� nativeStringc @ s e Zd ZdZdd� Zdd� ZdS )�HostResolutionz9 The in-progress resolution of a given hostname. c C s || _ dS )zA Create a L{HostResolution} with the given name. N)�name)�selfr � r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/twisted/internet/_resolver.py�__init__- s zHostResolution.__init__c C s t � �d S �N)�NotImplementedError�r r r r �cancel3 s zHostResolution.cancelN)�__name__� __module__� __qualname__�__doc__r r r r r r r ' s r )�TCP�UDPr$ r% c @ s( e Zd ZdZdefdd�Zd dd�ZdS ) � GAIResolverzp L{IHostnameResolver} implementation that resolves hostnames by calling L{getaddrinfo} in a thread. Nc C s$ || _ |du r|jn|| _|| _dS )a� Create a L{GAIResolver}. @param reactor: the reactor to schedule result-delivery on @type reactor: L{IReactorThreads} @param getThreadPool: a function to retrieve the thread pool to use for scheduling name resolutions. If not supplied, the use the given C{reactor}'s thread pool. @type getThreadPool: 0-argument callable returning a L{twisted.python.threadpool.ThreadPool} @param getaddrinfo: a reference to the L{getaddrinfo} to use - mainly parameterized for testing. @type getaddrinfo: callable with the same signature as L{getaddrinfo} N)�_reactor� getThreadPool�_getThreadPool� _getaddrinfo)r Zreactorr( r r r r r W s �zGAIResolver.__init__r r$ c sr �� � }t|du rtnt|� � t| �� ����fdd�}t�j||�}t��} ��| � |j �fdd��} | S )�< See L{IHostnameResolver.resolveHostName} @param resolutionReceiver: see interface @param hostName: see interface @param portNumber: see interface @param addressTypes: see interface @param transportSemantics: see interface @return: see interface Nc s. z�� ��� ��W S ty( g Y S 0 d S r )r* r r )� addressFamily�hostName� portNumberr � socketTyper r �get� s � z(GAIResolver.resolveHostName.<locals>.getc sF | D ]4\}}}}}t | }� �|t�|d�g|�R � � q� �� d S �Nr$ )� _afToType�addressResolved�_socktypeToTyper0 �resolutionComplete)�result�family�socktype�protoZ cannonameZsockaddrZaddrType��resolutionReceiverr r �deliverResults� s �z3GAIResolver.resolveHostName.<locals>.deliverResults) r) � _typesToAF�_any� frozenset�_transportToSocketr r' r �resolutionBegan� addCallback) r r; r- r. � addressTypes�transportSemantics�poolr0 �d� resolutionr< r )r, r- r. r; r r/ r �resolveHostNamen s � zGAIResolver.resolveHostName)r Nr$ )r r! r" r# r r rH r r r r r& P s �r& c @ s( e Zd ZdZe� Zdd� Zd dd�ZdS ) �SimpleResolverComplexifierzF A converter from L{IResolverSimple} to L{IHostnameResolver}. c C s || _ dS )zW Construct a L{SimpleResolverComplexifier} with an L{IResolverSimple}. N)�_simpleResolver)r ZsimpleResolverr r r r � s z#SimpleResolverComplexifier.__init__r Nr$ c s� z� � d�� W n ty( t� �� Y n0 t� �� t� �}��|� �j�� �}��fdd�}� �fdd�} |�|| � �fdd�} |� | � |S )r+ �asciic s �� td| � �� d S r1 )r3 r )�address)r. r; r r �addressReceived� s zCSimpleResolverComplexifier.resolveHostName.<locals>.addressReceivedc s$ | � t�s �jjd| � �jd� d S )Nz'while looking up {name} with {resolver})r �resolver)�checkr �_logZfailurerJ )�error)r- r r r � errorReceived� s �zASimpleResolverComplexifier.resolveHostName.<locals>.errorReceivedc s � � � d S r )r5 )r6 r: r r �finish� s z:SimpleResolverComplexifier.resolveHostName.<locals>.finish) �encode�UnicodeEncodeErrorr r r rA rJ � getHostByNameZ addCallbacksrB ) r r; r- r. rC rD rG Z onAddressrM rR rS r )r- r. r; r r rH � s z*SimpleResolverComplexifier.resolveHostName)r Nr$ )r r! r" r# r rP r rH r r r r rI � s �rI c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) � FirstOneWinszT An L{IResolutionReceiver} which fires a L{Deferred} with its first result. c C s || _ d| _dS )zp @param deferred: The L{Deferred} to fire when the first resolution result arrives. FN)� _deferred� _resolved)r �deferredr r r r � s zFirstOneWins.__init__c C s || _ dS )z� See L{IResolutionReceiver.resolutionBegan} @param resolution: See L{IResolutionReceiver.resolutionBegan} N)� _resolution)r rG r r r rA � s z FirstOneWins.resolutionBeganc C s" | j r dS d| _ | j�|j� dS )z� See L{IResolutionReceiver.addressResolved} @param address: See L{IResolutionReceiver.addressResolved} NT)rY rX �callback�host)r rL r r r r3 s z FirstOneWins.addressResolvedc C s" | j r dS | j�t| jj�� dS )z? See L{IResolutionReceiver.resolutionComplete} N)rY rX Zerrbackr r[ r r r r r r5 s z FirstOneWins.resolutionCompleteN)r r! r" r# r rA r3 r5 r r r r rW � s rW c @ s" e Zd ZdZdd� Zddd�ZdS ) �ComplexResolverSimplifierzE A converter from L{IHostnameResolver} to L{IResolverSimple} c C s || _ dS )z� Create a L{ComplexResolverSimplifier} with an L{IHostnameResolver}. @param nameResolver: The L{IHostnameResolver} to use. N)� _nameResolver)r Z nameResolverr r r r s z"ComplexResolverSimplifier.__init__r c C s" t � }| j�t|�|dtg� |S )z� See L{IResolverSimple.getHostByName} @param name: see L{IResolverSimple.getHostByName} @param timeouts: see L{IResolverSimple.getHostByName} @return: see L{IResolverSimple.getHostByName} r )r r_ rH rW r )r r Ztimeoutsr6 r r r rV & s z'ComplexResolverSimplifier.getHostByNameN)r )r r! r" r# r rV r r r r r^ s r^ N)*r# �socketr r r r r r r Zzope.interfacer Ztwisted.internet._idnar Ztwisted.internet.addressr r Ztwisted.internet.deferr Ztwisted.internet.errorr Ztwisted.internet.interfacesr r r r Ztwisted.internet.threadsr Ztwisted.loggerr Ztwisted.python.compatr r r? r> r= r2 r@ r4 r& rI rW r^ r r r r �<module> sD $ ����RJ)
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