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Edit File: socks.cpython-310.pyc
o �b� � @ s� d Z ddlZddlZddlZddlZddlmZmZmZ ddl m Z G dd� dej �Z G dd� dej �Z G d d � d ej �ZG d d � d ej�ZG d d� dej�ZdS )z) Implementation of the SOCKSv4 protocol. � N)�defer�protocol�reactor)�logc @ s4 e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd S ) �SOCKSv4Outgoingc C � || _ d S �N)�socks��selfr � r �9/usr/lib/python3/dist-packages/twisted/protocols/socks.py�__init__ � zSOCKSv4Outgoing.__init__c C s. | j �� }| jjdd|j|jd� | | j_d S )N�Z r )�port�ip)� transport�getPeerr � makeReplyr �host� otherConn)r �peerr r r �connectionMade s z SOCKSv4Outgoing.connectionMadec C � | j j�� d S r �r r �loseConnection�r �reasonr r r �connectionLost � z SOCKSv4Outgoing.connectionLostc C � | j �|� d S r �r �write�r �datar r r � dataReceived! r z SOCKSv4Outgoing.dataReceivedc C � | j �| |� | j�|� d S r �r r r r# r$ r r r r# $ � zSOCKSv4Outgoing.writeN)�__name__� __module__� __qualname__r r r r& r# r r r r r s r c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) �SOCKSv4Incomingc C s || _ | | j _d S r )r r r r r r r * s zSOCKSv4Incoming.__init__c C r r r r r r r r . r z SOCKSv4Incoming.connectionLostc C r! r r" r$ r r r r& 1 r z SOCKSv4Incoming.dataReceivedc C r' r r( r$ r r r r# 4 r) zSOCKSv4Incoming.writeN)r* r+ r, r r r& r# r r r r r- ) s r- c @ sp e Zd ZdZdefdd�Zdd� Zdd� Zd d � Zd d � Z d d� Z dd� Z dd� Z ddd�Z dd� Zdd� ZdS ) �SOCKSv4a� An implementation of the SOCKSv4 protocol. @type logging: L{str} or L{None} @ivar logging: If not L{None}, the name of the logfile to which connection information will be written. @type reactor: object providing L{twisted.internet.interfaces.IReactorTCP} @ivar reactor: The reactor used to create connections. @type buf: L{str} @ivar buf: Part of a SOCKSv4 connection request. @type otherConn: C{SOCKSv4Incoming}, C{SOCKSv4Outgoing} or L{None} @ivar otherConn: Until the connection has been established, C{otherConn} is L{None}. After that, it is the proxy-to-destination protocol instance along which the client's connection is being forwarded. Nc C � || _ || _d S r )�loggingr )r r0 r r r r r M � zSOCKSv4.__init__c C s d| _ d | _d S )N� )�bufr )r r r r r Q r1 zSOCKSv4.connectionMadec C s2 | j r | j �|� dS | j| | _| j}d| jdd� v r�| jdd� | jdd� }| _t�d|dd� �\}}}| j�dd�\}| _|dd� dkr�|dd� dkr�d| jvr^|| _dS | j�dd�\}| _| j�|�} | �| j ||||� | � | fd d �� dS t � |dd� �}| � |||||� dS dS ) z� Called whenever data is received. @type data: L{bytes} @param data: Part or all of a SOCKSv4 packet. N� � �!BBH� � � s c S � |� d�S �N�[ �r ��resultr r r r �<lambda>p � z&SOCKSv4.dataReceived.<locals>.<lambda>) r r# r3 �struct�unpack�splitr �resolve� addCallback�_dataReceived2� addErrback�socket� inet_ntoa) r r% �completeBuffer�head�version�coder �user�server�dr r r r& U s* �zSOCKSv4.dataReceivedc C s� |dks J d| ��| � ||||�s| �d� dS |dkr/| �||t| �}|�| fdd�� n |dkrE| �d t| |�}|�| fd d�� ntd |� ���| j d ksZJ d t | j � ��dS )a4 The second half of the SOCKS connection setup. For a SOCKSv4 packet this is after the server address has been extracted from the header. For a SOCKSv4a packet this is after the host name has been resolved. @type server: L{str} @param server: The IP address of the destination, represented as a dotted quad. @type user: L{str} @param user: The username associated with the connection. @type version: L{int} @param version: The SOCKS protocol version number. @type code: L{int} @param code: The command code. 1 means establish a TCP/IP stream connection, and 2 means establish a TCP/IP port binding. @type port: L{int} @param port: The port number associated with the connection. r7 zBad version code: %sr< Nr8 c S r: r; r= r> r r r r@ � rA z(SOCKSv4._dataReceived2.<locals>.<lambda>� r c S s |� dd| d | d �S )Nr r r8 r= )�xr r r r r@ � s zBad Connect Code: r2 z hmm, still stuff in buffer... %s) � authorizer � connectClassr rH � listenClass�SOCKSv4IncomingFactoryrF � RuntimeErrorr3 �repr)r rP rO rM rN r rQ r r r rG w s zSOCKSv4._dataReceived2c C s | j r | j j�� d S d S r )r r r r r r r r � s �zSOCKSv4.connectionLostc C s t �d||||f � dS )Nz0code %s connection to %s:%s (user %s) authorizedr8 )r �msg)r rN rP r rO r r r rT � s ��zSOCKSv4.authorizec G s t jt|g|�R � �||�S r )r � ClientCreatorr � connectTCP)r r r �klass�argsr r r rU � s zSOCKSv4.connectClassc G s& t �|||� �}t�|�� dd � �S )Nr8 )r � listenTCPr �succeed�getHost)r r r] r^ �servr r r rV � s zSOCKSv4.listenClassr �0.0.0.0c C s< | j �t�d|||�t�|� � |dkr | j �� d S d S )Nr6 r )r r# rB �packrI � inet_atonr )r �replyrM r r r r r r � s ��zSOCKSv4.makeReplyc C s | � | |� | j�|� d S r )r r r# r$ r r r r# � s z SOCKSv4.writec C s | j sd S | j�� }| jj�� }t| j d�}|�dt�� |j|j || kr&dp'd|j|j f � |rz|d d� |dd � }}|�t � t dd� |�d�d � |�dt |� d d � |D ]}t t|��d krm|�d � q]|�|� q]|�d � |s1|�d � |�� d S ) N�az%s %s:%d %s %s:%d �<�>� c S s dt | � S )Nz%02X)�ord)rS r r r r@ � s z SOCKSv4.log.<locals>.<lambda>� � �.� )r0 r r r �openr# �time�ctimer r �string�join�map�lenrY �close)r �protor% r � their_peer�f�p�cr r r r � s8 ��� � z SOCKSv4.log)r r rc )r* r+ r, �__doc__r r r r& rG r rT rU rV r r# r r r r r r. 9 s "% r. c @ � e Zd ZdZdd� Zdd� ZdS )�SOCKSv4Factoryz` A factory for a SOCKSv4 proxy. Constructor accepts one argument, a log file name. c C r r )r0 )r r r r r r � r zSOCKSv4Factory.__init__c C s t | jt�S r )r. r0 r �r �addrr r r � buildProtocol� s z SOCKSv4Factory.buildProtocolN�r* r+ r, r} r r� r r r r r � s r c @ r~ )rW zJ A utility class for building protocols for incoming connections. c C r/ r )r r )r r r r r r r � r1 z SOCKSv4IncomingFactory.__init__c C sR |d | j krd| _ | j�dd� t| j�S | j dkr d S | j�dd� d| _ d S )Nr � r r< )r r r r- r� r r r r� � s z$SOCKSv4IncomingFactory.buildProtocolNr� r r r r rW � s rW )r} rI rs rB rq �twisted.internetr r r �twisted.pythonr �Protocolr r- r. �Factoryr rW r r r r �<module> s