�
Ϫ�f� � � � d Z ddlmZ ddlmZmZ ddlmZmZ ddl m
Z
ddl m Z ddl
mZ d� Zd � Z G d
� d ej" � Zy )
z
hosts(5) support.
� )�defer)� isIPAddress�
isIPv6Address)�common�dns)�failure)� nativeString)�FilePathc �� � g } | j � j � }|j � }|D ]� }|j d� }|dk7 r|d| }|s�!|j � }|j � |dd D �cg c] }|j � �� c}v s�c t
|d � }t |� s t |� s��|j |� �� |S # t $ r |cY S w xY wc c}w # t $ r Y ��w xY w)a�
Search the given file, which is in hosts(5) standard format, for addresses
associated with a given name.
@param hostsFile: The name of the hosts(5)-format file to search.
@type hostsFile: L{FilePath}
@param name: The name to search for.
@type name: C{bytes}
@return: L{None} if the name is not found in the file, otherwise a
C{str} giving the address in the file associated with the name.
� #���N� r ) �
getContent�
splitlines�
BaseException�lower�find�splitr �
ValueErrorr r �append) � hostsFile�name�results�lines�line�idx�parts�s�maybeIPs �5/usr/lib/python3/dist-packages/twisted/names/hosts.py�searchFileForAllr! s� � � �G���$�$�&�1�1�3�� �:�:�<�D�� (���i�i��o�� �"�9����:�D�� ��
�
� �� �:�:�<�u�Q�R�y�9�!�A�G�G�I�9� 9�
�&�u�Q�x�0�� �7�#�}�W�'=����w�'� (� �N��' � ����� :�� �
��
�s) � C �;C#�C(� C � C �( C4�3C4c �< � t t | � |� }|r|d S y)a�
Grep given file, which is in hosts(5) standard format, for an address
entry with a given name.
@param file: The name of the hosts(5)-format file to search.
@type file: C{str} or C{bytes}
@param name: The name to search for.
@type name: C{bytes}
@return: L{None} if the name is not found in the file, otherwise a
C{str} giving the first address in the file associated with
the name.
r N)r! r
)�filer � addressess r �
searchFileForr% 9 s$ � � !��$� ��6�I����|�� � c �> � e Zd ZdZd d�Zd� Zd� Zd� Zd
d�Zd
d�Z eZ
y) �Resolverz9
A resolver that services hosts(5) format files.
c �^ � t j j | � || _ || _ y �N)r � ResolverBase�__init__r# �ttl)�selfr# r- s r r, zResolver.__init__S s$ � ����$�$�T�*��� ���r& c �j � �� t �� fd�t t � j � �� D � � S )zv
Return a tuple of L{dns.RRHeader} instances for all of the IPv4
addresses in the hosts file.
c 3 �� �K � | ]l }t |� r_t j �t j t j �j
t j |�j
� � �� �n y �wr* )r r �RRHeader�A�INr- �Record_A��.0�addrr r. s ��r � <genexpr>z%Resolver._aRecords.<locals>.<genexpr>] sM �� �� �
���4� �
�L�L��s�u�u�c�f�f�d�h�h�� � �T�4�8�8�8T� U�
�� �A2A5��tupler! r
r# �r. r s ``r � _aRecordszResolver._aRecordsX s/ �� �
�
�(��$�)�)�)<�d�C�
�
�
r& c �j � �� t �� fd�t t � j � �� D � � S )zv
Return a tuple of L{dns.RRHeader} instances for all of the IPv6
addresses in the hosts file.
c 3 �� �K � | ]l }t |� r_t j �t j t j �j
t j |�j
� � �� �n y �wr* )r r r1 �AAAAr3 r- � Record_AAAAr5 s ��r r8 z(Resolver._aaaaRecords.<locals>.<genexpr>h sR �� �� �
� � �T�"�
�L�L��c�h�h�������#�/�/�$����2Q�
�
�r9 r: r< s ``r � _aaaaRecordszResolver._aaaaRecordsc s1 �� �
�
� )��$�)�)�)<�d�C�
�
�
r& c � � |rt j |ddf� S t j t j t j |� � � S )aF
Generate a response for the given name containing the given result
records, or a failure if there are no result records.
@param name: The DNS name the response is for.
@type name: C{str}
@param records: A tuple of L{dns.RRHeader} instances giving the results
that will go into the response.
@return: A L{Deferred} which will fire with a three-tuple of result
records, authority records, and additional records, or which will
fail with L{dns.DomainError} if there are no result records.
� )r �succeed�failr �Failurer � DomainError)r. r �recordss r �_respondzResolver._respondp s> � � ��=�=�'�2�r�!2�3� 3��z�z�'�/�/�#�/�/�$�*?�@�A�Ar& Nc �n � t j |� }| j || j |� � S )zm
Read any IPv4 addresses from C{self.file} and return them as
L{Record_A} instances.
)r � domainStringrJ r= �r. r �timeouts r �
lookupAddresszResolver.lookupAddress� s. � �
� � ��%���}�}�T�4�>�>�$�#7�8�8r& c �n � t j |� }| j || j |� � S )zp
Read any IPv6 addresses from C{self.file} and return them as
L{Record_AAAA} instances.
)r rL rJ rB rM s r �lookupIPV6AddresszResolver.lookupIPV6Address� s0 � �
� � ��%���}�}�T�4�#4�#4�T�#:�;�;r& )s
/etc/hostsi r* ) �__name__�
__module__� __qualname__�__doc__r, r= rB rJ rO rQ �lookupAllRecordsrD r& r r( r( N s. � ���
�
�B�&9�<� %�r& r( N)rU �twisted.internetr �twisted.internet.abstractr r �
twisted.namesr r �twisted.pythonr �twisted.python.compatr �twisted.python.filepathr
r! r% r+ r( rD r& r �<module>r] s= ��
�
#� @� %� "� .� ,�$�N�*I%�v�"�"� I%r& |