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twisted
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_v1parser.cpython-312.pyc
� Ϫ�f� � � � d Z ddlmZmZ ddlmZ ddlmZ ddlm Z m Z ddl m Z m Z mZmZ ee j � G d� d � � Zy ) zD IProxyParser implementation for version one of the PROXY protocol. � )�Tuple�Union)� implementer)�address� )�_info� _interfaces)�InvalidNetworkProtocol�InvalidProxyHeader�MissingAddressData� convertErrorc � � e Zd ZdZdZdZdZdZeeefZdZ dd �Z d e de e ej e f e d f fd �Zed e dej fd�� Zy)�V1Parserz� PROXY protocol version one header parser. Version one of the PROXY protocol is a human readable format represented by a single, newline delimited binary string that contains all of the relevant source and destination data. s PROXYs UNKNOWNs TCP4s TCP6s �returnNc � � d| _ y )N� )�buffer)�selfs �E/usr/lib/python3/dist-packages/twisted/protocols/haproxy/_v1parser.py�__init__zV1Parser.__init__, s � ��� r �data�NNc � � | xj |z c_ t | j � dkD r"| j | j vr t � �| j j | j d� }t |� dkD syd| _ |j � }|j � }| j |� }||fS )a� Consume a chunk of data and attempt to parse it. @param data: A bytestring. @type data: L{bytes} @return: A two-tuple containing, in order, a L{_interfaces.IProxyInfo} and any bytes fed to the parser that followed the end of the header. Both of these values are None until a complete header is parsed. @raises InvalidProxyHeader: If the bytes fed to the parser create an invalid PROXY header. �k r r r )r �len�NEWLINEr �split�pop�parse)r r �lines� remaining�header�infos r �feedz V1Parser.feed/ s� � �" � � �t�� � �t�{�{� �c� !�d�l�l�$�+�+�&E�$�&� &����#�#�D�L�L�!�4���5�z�A�~� ��� ��I�I�K� �������z�z�&�!���i� � r �linec � � |}d}d}d}d}d}d}t t t � 5 |j dd� \ }}ddd� || j k7 r t � �t t t � 5 |j dd� \ }}ddd� || j vr t � �|| j k( rt j |dd� S t t t � 5 |j dd� \ }}ddd� t t t � 5 |j dd� \ }}ddd� t t t � 5 |j dd� \ }}ddd� t t t � 5 |j d� d }ddd� || j k( rot j |t j d|j � t |� � t j d|j � t |� � � S t j |t j d|j � t |� � t j d|j � t |� � � S # 1 sw Y ��GxY w# 1 sw Y �� xY w# 1 sw Y ���xY w# 1 sw Y ���xY w# 1 sw Y ��\xY w# 1 sw Y ��8xY w)a� Parse a bytestring as a full PROXY protocol header line. @param line: A bytestring that represents a valid HAProxy PROXY protocol header line. @type line: bytes @return: A L{_interfaces.IProxyInfo} containing the parsed data. @raises InvalidProxyHeader: If the bytestring does not represent a valid PROXY header. @raises InvalidNetworkProtocol: When no protocol can be parsed or is not one of the allowed values. @raises MissingAddressData: When the protocol is TCP* but the header does not contain a complete set of addresses and ports. N� r r �TCP)r � ValueErrorr r �PROXYSTRr �ALLOWED_NET_PROTOS� UNKNOWN_PROTOr � ProxyInfor � TCP4_PROTOr � IPv4Address�decode�int� IPv6Address) �clsr% � originalLine�proxyStr�networkProtocol� sourceAddr� sourcePort�destAddr�destPorts r r zV1Parser.parseL si � �( � ��� ��� �� ����� �*�&8� 9� 1� !�Z�Z��a� 0�N�H�d� 1� �s�|�|� #�$�&� &� �*�&<� =� 8�$(�J�J�t�Q�$7� !�O�T� 8� �#�"8�"8� 8�(�*� *� �c� /� /� /��?�?�<��t�<� <� �*�&8� 9� 3� #�z�z�$�� 2� �J�� 3� �*�&8� 9� 1� !�Z�Z��a� 0�N�H�d� 1� �*�&8� 9� 3� #�z�z�$�� 2� �J�� 3� �*�&8� 9� +��z�z�$�'��*�H� +� �c�n�n� ,��?�?� ��#�#�E�:�+<�+<�+>��J��P��#�#�E�8�?�?�+<�c�(�m�L�� � ��� � � � ��z�'8�'8�':�C� �O� L� � � ��x���'8�#�h�-� H� � �E 1� 1�� 8� 8�� 3� 3�� 1� 1�� 3� 3�� +� +�sG �I>�.J � J�J%�J2�4J?�>J� J�J"�%J/�2J<�?K )r N)�__name__� __module__� __qualname__�__doc__r* r, r. � TCP6_PROTOr+ r r �bytesr r r r- r$ � classmethodr � r r r r s� � �� �H� �M��J��J������ �G��!��!� �u�U�_�_�e�+�,�e�J�.?�?� @�!�: �A �� A �5�?�?� A � �A r r N)r> �typingr r �zope.interfacer �twisted.internetr � r r � _exceptionsr r r r � IProxyParserr rB r r �<module>rI sI �� � � &� $� �� � �[� %� %�&�v � v � '�v r
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