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文件: /usr/lib/python3/dist-packages/twisted/protocols/haproxy/__pycache__/_wrapper.cpython-310.pyc
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o �b] � @ s� d Z ddlmZmZ ddlmZ ddlmZ ddlm Z ddl m Z ddl m Z dd lmZ dd lmZ G d d � d e j�ZG d d� de j�Zdejdefdd�ZdS )z@ Protocol wrapper that provides HAProxy PROXY protocol support. � )�Optional�Union)� interfaces)�_WrapperServerEndpoint)�policies� )�_info)�InvalidProxyHeader)�V1Parser)�V2Parserc s` e Zd ZdZdejdejf� fdd� Zde ddfd d �Z dej fd d �Z dej fd d�Z � ZS )�HAProxyProtocolWrappera A Protocol wrapper that provides HAProxy support. This protocol reads the PROXY stream header, v1 or v2, parses the provided connection data, and modifies the behavior of getPeer and getHost to return the data provided by the PROXY header. �factory�wrappedProtocolc s t � �||� d | _d | _d S �N)�super�__init__� _proxyInfo�_parser)�selfr r �� __class__� �D/usr/lib/python3/dist-packages/twisted/protocols/haproxy/_wrapper.pyr s z HAProxyProtocolWrapper.__init__�data�returnNc C s� | j d ur | j�|�S | j}|d u rPt|�dkr4|d d� tjkr4t|dd� �d@ dkr4t� | _}n t|�dkrJ|d d� tj krJt� | _}n| � � d S z|� |�\| _ }|rd| j�|� W d S W d S t yt | � � Y d S w )N� � � �� � � � ) r r � dataReceivedr �lenr �PREFIX�ordr �PROXYSTR�loseConnection�feedr )r r �parser� remainingr r r r" $ s( � �z#HAProxyProtocolWrapper.dataReceivedc C �* | j r | j jr | j jS | jsJ �| j�� S r )r �source� transport�getPeer�r r r r r. = � z HAProxyProtocolWrapper.getPeerc C r+ r )r � destinationr- �getHostr/ r r r r2 C r0 z HAProxyProtocolWrapper.getHost)�__name__� __module__� __qualname__�__doc__r �WrappingFactoryr � IProtocolr �bytesr" �IAddressr. r2 � __classcell__r r r r r s ��r c @ s" e Zd ZdZeZdefdd�ZdS )�HAProxyWrappingFactoryzL A Factory wrapper that adds PROXY protocol support to connections. r c C s. t j�| j�r | j�� }n| jjj}|� d�S )z� Annotate the wrapped factory's log prefix with some text indicating the PROXY protocol is in use. @rtype: C{str} z (PROXY))r �ILoggingContext� providedBy�wrappedFactory� logPrefixr r3 )r r@ r r r r@ Q s z HAProxyWrappingFactory.logPrefixN)r3 r4 r5 r6 r �protocol�strr@ r r r r r< J s r< �wrappedEndpointr c C s t | t�S )a� Wrap an endpoint with PROXY protocol support, so that the transport's C{getHost} and C{getPeer} methods reflect the attributes of the proxied connection rather than the underlying connection. @param wrappedEndpoint: The underlying listening endpoint. @type wrappedEndpoint: L{IStreamServerEndpoint} @return: a new listening endpoint that speaks the PROXY protocol. @rtype: L{IStreamServerEndpoint} )r r< )rC r r r � proxyEndpoint_ s rD N)r6 �typingr r �twisted.internetr �twisted.internet.endpointsr �twisted.protocolsr � r � _exceptionsr � _v1parserr � _v2parserr �ProtocolWrapperr r7 r< �IStreamServerEndpointrD r r r r �<module> s 6��
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