Your IP : 216.73.216.196
B
��d^* � @ s� d Z ddlmZmZ ddlmZ ddlmZ ddlm Z ddl
m Z ddl m
Z
ddlmZ dd lmZ d
d � Zd d
� ZG dd� dej�ZdS )z
hosts(5) support.
� )�division�absolute_import)� nativeString)�dns)�failure)�FilePath)�defer)� isIPAddress)�commonc C s� g }y| � � �� }W n
|S |�� }xh|D ]`}|�d�}|dkrP|d|� }|sVq.|�� }|�� dd� |dd� D �kr.|�t|d �� q.W |S )a�
Search the given file, which is in hosts(5) standard format, for an address
entry 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.
� #���Nc S s g | ] }|� � �qS � )�lower)�.0�sr
r
�F/opt/alt/python37/lib64/python3.7/site-packages/twisted/names/hosts.py�
<listcomp>1 s z$searchFileForAll.<locals>.<listcomp>� r )Z
getContent�
splitlinesr �find�split�appendr )Z hostsFile�name�results�lines�line�idx�partsr
r
r �searchFileForAll s
r c C s t t| �|�}|r|d S dS )a�
Grep given file, which is in hosts(5) standard format, for an address
entry with a given name.
@param file: The name of the hosts(5)-format file to search.
@type file: C{str} or C{bytes}
@param name: The name to search for.
@type name: C{bytes}
@return: L{None} if the name is not found in the file, otherwise a
C{str} giving the first address in the file associated with
the name.
r N)r r )�filer Z addressesr
r
r �
searchFileFor7 s r c @ sJ e Zd ZdZddd�Zdd� Zdd � Zd
d � Zdd
d�Zddd�Z eZ
d S )�Resolverz9
A resolver that services hosts(5) format files.
�
/etc/hosts� c C s t j�| � || _|| _d S )N)r
� ResolverBase�__init__r �ttl)�selfr r& r
r
r r% Q s zResolver.__init__c s$ t � �fdd�tt�j�� �D ��S )zv
Return a tuple of L{dns.RRHeader} instances for all of the IPv4
addresses in the hosts file.
c s6 g | ].}t |�rt�� tjtj�jt�|�j���qS r
)r r �RRHeader�A�INr& ZRecord_A)r �addr)r r' r
r r ] s z&Resolver._aRecords.<locals>.<listcomp>)�tupler r r )r' r r
)r r' r � _aRecordsW s zResolver._aRecordsc s$ t � �fdd�tt�j�� �D ��S )zv
Return a tuple of L{dns.RRHeader} instances for all of the IPv6
addresses in the hosts file.
c s6 g | ].}t |�st�� tjtj�jt�|�j���qS r
)r r r( ZAAAAr* r& Z Record_AAAA)r r+ )r r' r
r r j s z)Resolver._aaaaRecords.<locals>.<listcomp>)r, r r r )r' r r
)r r' r � _aaaaRecordsd s zResolver._aaaaRecordsc C s* |rt �|ddf�S t �t�t�|���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
)r ZsucceedZfailr ZFailurer Z DomainError)r' r �recordsr
r
r �_respondq s zResolver._respondNc C s t �|�}| �|| �|��S )zm
Read any IPv4 addresses from C{self.file} and return them as
L{Record_A} instances.
)r � domainStringr0 r- )r' r �timeoutr
r
r �
lookupAddress� s
zResolver.lookupAddressc C s t �|�}| �|| �|��S )zp
Read any IPv6 addresses from C{self.file} and return them as
L{Record_AAAA} instances.
)r r1 r0 r. )r' r r2 r
r
r �lookupIPV6Address� s
zResolver.lookupIPV6Address)r" r# )N)N) �__name__�
__module__� __qualname__�__doc__r% r- r. r0 r3 r4 ZlookupAllRecordsr
r
r
r r! M s
r! N)r8 �
__future__r r Ztwisted.python.compatr Z
twisted.namesr Ztwisted.pythonr Ztwisted.python.filepathr Ztwisted.internetr Ztwisted.internet.abstractr r
r r r$ r! r
r
r
r �<module> s #