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� =OXc @ s� d Z d d l Z d d l m Z d d l m Z m Z m Z m Z d d l m Z m Z m Z m Z d e f d � � YZ d S( s& Implementation of an SSH2 "message". i����N( t util( t zero_bytet max_bytet one_bytet asbytes( t longt BytesIOt ut integer_typest Messagec B s" e Z d Z e d � Z d d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z! d � Z" RS( s� An SSH2 message is a stream of bytes that encodes some combination of strings, integers, bools, and infinite-precision integers (known in Python as longs). This class builds or breaks down such a byte stream. Normally you don't need to deal with anything this low-level, but it's exposed for people implementing custom extensions, or features that paramiko doesn't support yet. l ~ c C s. | d k r t | � | _ n t � | _ d S( s� Create a new SSH2 message. :param str content: the byte stream to use as the message content (passed in only when decomposing a message). N( t NoneR t packet( t selft content( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt __init__+ s c C s | j � S( sX Return the byte stream content of this message, as a string/bytes obj. ( R ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt __str__8 s c C s d t | j j � � d S( sP Returns a string representation of this object, for debugging. s paramiko.Message(t )( t reprR t getvalue( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt __repr__> s c C s | j j � S( sK Return the byte stream content of this Message, as bytes. ( R R ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyR D s c C s | j j d � d S( sk Rewind the message to the beginning as if no items had been parsed out of it yet. i N( R t seek( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt rewindJ s c C s2 | j j � } | j j � } | j j | � | S( sv Return the bytes (as a `str`) of this message that haven't already been parsed and returned. ( R t tellt readR ( R t positiont remainder( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_remainderQ s c C s) | j j � } | j � | j j | � S( s� Returns the `str` bytes of this message that have been parsed and returned. The string passed into a message's constructor can be regenerated by concatenating ``get_so_far`` and `get_remainder`. ( R R R R ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_so_far[ s c C sT | j j | � } d } t | � | k o5 | k n rP | t | t | � S| S( s Return the next ``n`` bytes of the message (as a `str`), without decomposing into an int, decoded string, etc. Just the raw bytes are returned. Returns a string of ``n`` zero bytes if there weren't ``n`` bytes remaining in the message. i i i ( R R t lenR ( R t nt bt max_pad_size( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_bytese s "c C s | j d � S( s Return the next byte of the message, without decomposing it. This is equivalent to `get_bytes(1) <get_bytes>`. :return: the next (`str`) byte of the message, or ``' '`` if there aren't any bytes remaining. i ( R ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_byter s c C s | j d � } | t k S( s2 Fetch a boolean from the stream. i ( R R ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_boolean} s c C sU | j d � } | t k r. t j | j � � S| | j d � 7} t j d | � d S( sZ Fetch an int from the stream. :return: a 32-bit unsigned `int`. i i s >Ii ( R R R t inflate_longt get_binaryt structt unpack( R t byte( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_adaptive_int� s c C s t j d | j d � � d S( sp Fetch an int from the stream. @return: a 32-bit unsigned integer. @rtype: int s >Ii i ( R% R& R ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_int� s c C s t j d | j d � � d S( sk Fetch a 64-bit int from the stream. :return: a 64-bit unsigned integer (`long`). s >Qi i ( R% R& R ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_int64� s c C s t j | j � � S( ss Fetch a long int (mpint) from the stream. :return: an arbitrary-length integer (`long`). ( R R# R$ ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_mpint� s c C s | j | j � � S( s� Fetch a `str` from the stream. This could be a byte string and may contain unprintable characters. (It's not unheard of for a string to contain another byte-stream message.) ( R R) ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_string� s c C s t | j | j � � � S( s Fetch a string from the stream. This could be a byte string and may contain unprintable characters. (It's not unheard of for a string to contain another byte-stream Message.) @return: a string. @rtype: string ( R R R) ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_text� s c C s | j | j � � S( s Fetch a string from the stream. This could be a byte string and may contain unprintable characters. (It's not unheard of for a string to contain another byte-stream Message.) @return: a string. @rtype: string ( R R) ( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyR$ � s c C s | j � j d � S( s� Fetch a `list` of `strings <str>` from the stream. These are trivially encoded as comma-separated values in a string. t ,( R- t split( R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt get_list� s c C s | j j | � | S( sp Write bytes to the stream, without any formatting. :param str b: bytes to add ( R t write( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_bytes� s c C s | j j | � | S( sw Write a single byte to the stream, without any formatting. :param str b: byte to add ( R R1 ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_byte� s c C s- | r | j j t � n | j j t � | S( si Add a boolean value to the stream. :param bool b: boolean value to add ( R R1 R R ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_boolean� s c C s | j j t j d | � � | S( s] Add an integer to the stream. :param int n: integer to add s >I( R R1 R% t pack( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_int� s c C sX | t j k r8 | j j t � | j t j | � � n | j j t j d | � � | S( s] Add an integer to the stream. :param int n: integer to add s >I( R t big_intR R1 R t add_stringR t deflate_longR% R5 ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_adaptive_int� s c C s | j j t j d | � � | S( sY Add a 64-bit int to the stream. :param long n: long int to add s >Q( R R1 R% R5 ( R R ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_int64 s c C s | j t j | � � | S( s� Add a long int to the stream, encoded as an infinite-precision integer. This method only works on positive numbers. :param long z: long int to add ( R8 R R9 ( R t z( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_mpint s c C s3 t | � } | j t | � � | j j | � | S( sZ Add a string to the stream. :param str s: string to add ( R R6 R R R1 ( R t s( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyR8 s c C s | j d j | � � | S( s� Add a list of strings to the stream. They are encoded identically to a single string of values separated by commas. (Yes, really, that's how SSH2 does it.) :param list l: list of strings to add R. ( R8 t join( R t l( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add_list" s c C sk t | � t k r | j | � St | t � r; | j | � St | � t k rZ | j | � S| j | � Sd S( N( t typet boolR4 t isinstanceR R: t listRA R8 ( R t i( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt _add- s c G s" x | D] } | j | � q Wd S( s" Add a sequence of items to the stream. The values are encoded based on their type: str, int, bool, list, or long. .. warning:: Longs are encoded non-deterministically. Don't use this method. :param seq: the sequence of items N( RG ( R t seqt item( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt add7 s N(# t __name__t __module__t __doc__R R7 R R R R R R R R R R! R" R( R) R* R+ R, R- R$ R0 R2 R3 R4 R6 R: R; R= R8 RA RG RJ ( ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyR s> ( RM R% t paramikoR t paramiko.commonR R R R t paramiko.py3compatR R R R t objectR ( ( ( s4 /usr/lib/python2.7/site-packages/paramiko/message.pyt <module> s ""
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