# Copyright 2009 Shikhar Bhushan
# Copyright 2014 Leonidas Poulopoulos
#
# 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 NCClientError

class TransportError(NCClientError):
    pass

class SessionError(NCClientError):
    pass

class AuthenticationError(TransportError):
    pass

class PermissionError(TransportError):
    pass

class SessionCloseError(TransportError):

    def __init__(self, in_buf, out_buf=None):
        msg = 'Unexpected session close'
        if in_buf:
            msg += '\nIN_BUFFER: `%s`' % in_buf
        if out_buf:
            msg += ' OUT_BUFFER: `%s`' % out_buf
        SSHError.__init__(self, msg)

class SSHError(TransportError):
    pass

class SSHUnknownHostError(SSHError):

    def __init__(self, host, fingerprint):
        SSHError.__init__(self, 'Unknown host key [%s] for [%s]' % (fingerprint, host))
        self.host = host
        self.fingerprint = fingerprint

class NetconfFramingError(TransportError):
    pass