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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
agent.py	13.05 KB	-rw-r--r--
auth_handler.py	34.98 KB	-rw-r--r--
ber.py	4.25 KB	-rw-r--r--
buffered_pipe.py	7.29 KB	-rw-r--r--
channel.py	48.18 KB	-rw-r--r--
client.py	31.37 KB	-rw-r--r--
common.py	8.12 KB	-rw-r--r--
compress.py	1.26 KB	-rw-r--r--
config.py	26.66 KB	-rw-r--r--
dsskey.py	8 KB	-rw-r--r--
ecdsakey.py	11.21 KB	-rw-r--r--
ed25519key.py	7.26 KB	-rw-r--r--
file.py	19.13 KB	-rw-r--r--
hostkeys.py	12.98 KB	-rw-r--r--
__init__.py	3.91 KB	-rw-r--r--
kex_curve25519.py	4.46 KB	-rw-r--r--
kex_ecdh_nist.py	4.91 KB	-rw-r--r--
kex_gex.py	10.11 KB	-rw-r--r--
kex_group14.py	1.79 KB	-rw-r--r--
kex_group16.py	2.23 KB	-rw-r--r--
kex_group1.py	5.66 KB	-rw-r--r--
kex_gss.py	24 KB	-rw-r--r--
message.py	8.81 KB	-rw-r--r--
packet.py	22.13 KB	-rw-r--r--
pipe.py	3.83 KB	-rw-r--r--
pkey.py	28.31 KB	-rw-r--r--
primes.py	5 KB	-rw-r--r--
proxy.py	4.54 KB	-rw-r--r--
py3compat.py	4.11 KB	-rw-r--r--
rsakey.py	7.17 KB	-rw-r--r--
server.py	29.7 KB	-rw-r--r--
sftp_attr.py	8.22 KB	-rw-r--r--
sftp_client.py	33.82 KB	-rw-r--r--
sftp_file.py	20.1 KB	-rw-r--r--
sftp_handle.py	7.26 KB	-rw-r--r--
sftp.py	5.89 KB	-rw-r--r--
sftp_server.py	19.14 KB	-rw-r--r--
sftp_si.py	12.28 KB	-rw-r--r--
ssh_exception.py	7.24 KB	-rw-r--r--
ssh_gss.py	28.21 KB	-rw-r--r--
transport.py	122.91 KB	-rw-r--r--
util.py	8.36 KB	-rw-r--r--
_version.py	80 B	-rw-r--r--
_winapi.py	11.09 KB	-rw-r--r--
win_pageant.py	4.17 KB	-rw-r--r--

Code Editor : ber.py

# Copyright (C) 2003-2007  Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
from paramiko.common import max_byte, zero_byte
from paramiko.py3compat import b, byte_ord, byte_chr, long

import paramiko.util as util

class BERException(Exception):
    pass

class BER(object):
    """
    Robey's tiny little attempt at a BER decoder.
    """

def __init__(self, content=bytes()):
        self.content = b(content)
        self.idx = 0

def asbytes(self):
        return self.content

def __str__(self):
        return self.asbytes()

def __repr__(self):
        return "BER('" + repr(self.content) + "')"

def decode(self):
        return self.decode_next()

def decode_next(self):
        if self.idx >= len(self.content):
            return None
        ident = byte_ord(self.content[self.idx])
        self.idx += 1
        if (ident & 31) == 31:
            # identifier > 30
            ident = 0
            while self.idx < len(self.content):
                t = byte_ord(self.content[self.idx])
                self.idx += 1
                ident = (ident << 7) | (t & 0x7f)
                if not (t & 0x80):
                    break
        if self.idx >= len(self.content):
            return None
        # now fetch length
        size = byte_ord(self.content[self.idx])
        self.idx += 1
        if size & 0x80:
            # more complimicated...
            # FIXME: theoretically should handle indefinite-length (0x80)
            t = size & 0x7f
            if self.idx + t > len(self.content):
                return None
            size = util.inflate_long(
                self.content[self.idx : self.idx + t], True
            )
            self.idx += t
        if self.idx + size > len(self.content):
            # can't fit
            return None
        data = self.content[self.idx : self.idx + size]
        self.idx += size
        # now switch on id
        if ident == 0x30:
            # sequence
            return self.decode_sequence(data)
        elif ident == 2:
            # int
            return util.inflate_long(data)
        else:
            # 1: boolean (00 false, otherwise true)
            msg = "Unknown ber encoding type {:d} (robey is lazy)"
            raise BERException(msg.format(ident))

@staticmethod
    def decode_sequence(data):
        out = []
        ber = BER(data)
        while True:
            x = ber.decode_next()
            if x is None:
                break
            out.append(x)
        return out

def encode_tlv(self, ident, val):
        # no need to support ident > 31 here
        self.content += byte_chr(ident)
        if len(val) > 0x7f:
            lenstr = util.deflate_long(len(val))
            self.content += byte_chr(0x80 + len(lenstr)) + lenstr
        else:
            self.content += byte_chr(len(val))
        self.content += val

def encode(self, x):
        if type(x) is bool:
            if x:
                self.encode_tlv(1, max_byte)
            else:
                self.encode_tlv(1, zero_byte)
        elif (type(x) is int) or (type(x) is long):
            self.encode_tlv(2, util.deflate_long(x))
        elif type(x) is str:
            self.encode_tlv(4, x)
        elif (type(x) is list) or (type(x) is tuple):
            self.encode_tlv(0x30, self.encode_sequence(x))
        else:
            raise BERException(
                "Unknown type for encoding: {!r}".format(type(x))
            )

@staticmethod
    def encode_sequence(data):
        ber = BER()
        for item in data:
            ber.encode(item)
        return ber.asbytes()

${this.title}

Code Editor : ber.py