ncclient:NETCONF Python client

# Copyright 2009 Shikhar Bhushan

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#    http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

from ncclient import ClientError

class SessionError(ClientError):

    pass

class SSHError(SessionError):

    pass

class SSHUnknownHostError(SSHError):

    def __init__(self, hostname, key):

        self.hostname = hostname

        self.key = key

    def __str__(self):

        from binascii import hexlify

        return ('Unknown host key [%s] for [%s]' %

                (hexlify(self.key.get_fingerprint()), self.hostname))

class SSHAuthenticationError(SSHError):

    pass

class SSHSessionClosedError(SSHError):

    def __init__(self, in_buf, out_buf=None):

        SessionError.__init__(self, "Unexpected session close.")

        self._in_buf, self._out_buf = in_buf, out_buf

    def __str__(self):

        msg = SessionError(self).__str__()

        if self._in_buf:

            msg += '\nIN_BUFFER: %s' % self._in_buf

        if self._out_buf:

            msg += '\nOUT_BUFFER: %s' % self._out_buf

        return msg