cloudstack/tools/migration/paramiko/ssh_exception.py
2012-04-03 04:50:05 -07:00

113 lines
3.4 KiB
Python

# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
# Copyright 2012 Citrix Systems, Inc. Licensed under the
# Apache License, Version 2.0 (the "License"); you may not use this
# file except in compliance with the License. Citrix Systems, Inc.
# reserves all rights not expressly granted by 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.
#
# Automatically generated by addcopyright.py at 04/03/2012
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Exceptions defined by paramiko.
"""
class SSHException (Exception):
"""
Exception raised by failures in SSH2 protocol negotiation or logic errors.
"""
pass
class AuthenticationException (SSHException):
"""
Exception raised when authentication failed for some reason. It may be
possible to retry with different credentials. (Other classes specify more
specific reasons.)
@since: 1.6
"""
pass
class PasswordRequiredException (AuthenticationException):
"""
Exception raised when a password is needed to unlock a private key file.
"""
pass
class BadAuthenticationType (AuthenticationException):
"""
Exception raised when an authentication type (like password) is used, but
the server isn't allowing that type. (It may only allow public-key, for
example.)
@ivar allowed_types: list of allowed authentication types provided by the
server (possible values are: C{"none"}, C{"password"}, and
C{"publickey"}).
@type allowed_types: list
@since: 1.1
"""
allowed_types = []
def __init__(self, explanation, types):
AuthenticationException.__init__(self, explanation)
self.allowed_types = types
def __str__(self):
return SSHException.__str__(self) + ' (allowed_types=%r)' % self.allowed_types
class PartialAuthentication (AuthenticationException):
"""
An internal exception thrown in the case of partial authentication.
"""
allowed_types = []
def __init__(self, types):
AuthenticationException.__init__(self, 'partial authentication')
self.allowed_types = types
class ChannelException (SSHException):
"""
Exception raised when an attempt to open a new L{Channel} fails.
@ivar code: the error code returned by the server
@type code: int
@since: 1.6
"""
def __init__(self, code, text):
SSHException.__init__(self, text)
self.code = code
class BadHostKeyException (SSHException):
"""
The host key given by the SSH server did not match what we were expecting.
@ivar hostname: the hostname of the SSH server
@type hostname: str
@ivar key: the host key presented by the server
@type key: L{PKey}
@ivar expected_key: the host key expected
@type expected_key: L{PKey}
@since: 1.6
"""
def __init__(self, hostname, got_key, expected_key):
SSHException.__init__(self, 'Host key for server %s does not match!' % hostname)
self.hostname = hostname
self.key = got_key
self.expected_key = expected_key