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/boto-2.5.2/boto/ec2/keypair.py

#
Python | 113 lines | 42 code | 12 blank | 59 comment | 4 complexity | a0eac4a25450537a2c509bfde1008576 MD5 | raw file
  1# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
  2#
  3# Permission is hereby granted, free of charge, to any person obtaining a
  4# copy of this software and associated documentation files (the
  5# "Software"), to deal in the Software without restriction, including
  6# without limitation the rights to use, copy, modify, merge, publish, dis-
  7# tribute, sublicense, and/or sell copies of the Software, and to permit
  8# persons to whom the Software is furnished to do so, subject to the fol-
  9# lowing conditions:
 10#
 11# The above copyright notice and this permission notice shall be included
 12# in all copies or substantial portions of the Software.
 13#
 14# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 15# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
 16# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
 17# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 18# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 19# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 20# IN THE SOFTWARE.
 21
 22"""
 23Represents an EC2 Keypair
 24"""
 25
 26import os
 27from boto.ec2.ec2object import EC2Object
 28from boto.exception import BotoClientError
 29
 30class KeyPair(EC2Object):
 31    
 32    def __init__(self, connection=None):
 33        EC2Object.__init__(self, connection)
 34        self.name = None
 35        self.fingerprint = None
 36        self.material = None
 37
 38    def __repr__(self):
 39        return 'KeyPair:%s' % self.name
 40
 41    def endElement(self, name, value, connection):
 42        if name == 'keyName':
 43            self.name = value
 44        elif name == 'keyFingerprint':
 45            self.fingerprint = value
 46        elif name == 'keyMaterial':
 47            self.material = value
 48        else:
 49            setattr(self, name, value)
 50
 51    def delete(self):
 52        """
 53        Delete the KeyPair.
 54        
 55        :rtype: bool
 56        :return: True if successful, otherwise False.
 57        """
 58        return self.connection.delete_key_pair(self.name)
 59
 60    def save(self, directory_path):
 61        """
 62        Save the material (the unencrypted PEM encoded RSA private key)
 63        of a newly created KeyPair to a local file.
 64        
 65        :type directory_path: string
 66        :param directory_path: The fully qualified path to the directory
 67                               in which the keypair will be saved.  The
 68                               keypair file will be named using the name
 69                               of the keypair as the base name and .pem
 70                               for the file extension.  If a file of that
 71                               name already exists in the directory, an
 72                               exception will be raised and the old file
 73                               will not be overwritten.
 74        
 75        :rtype: bool
 76        :return: True if successful.
 77        """
 78        if self.material:
 79            directory_path = os.path.expanduser(directory_path)
 80            file_path = os.path.join(directory_path, '%s.pem' % self.name)
 81            if os.path.exists(file_path):
 82                raise BotoClientError('%s already exists, it will not be overwritten' % file_path)
 83            fp = open(file_path, 'wb')
 84            fp.write(self.material)
 85            fp.close()
 86            os.chmod(file_path, 0600)
 87            return True
 88        else:
 89            raise BotoClientError('KeyPair contains no material')
 90
 91    def copy_to_region(self, region):
 92        """
 93        Create a new key pair of the same new in another region.
 94        Note that the new key pair will use a different ssh
 95        cert than the this key pair.  After doing the copy,
 96        you will need to save the material associated with the
 97        new key pair (use the save method) to a local file.
 98
 99        :type region: :class:`boto.ec2.regioninfo.RegionInfo`
100        :param region: The region to which this security group will be copied.
101
102        :rtype: :class:`boto.ec2.keypair.KeyPair`
103        :return: The new key pair
104        """
105        if region.name == self.region:
106            raise BotoClientError('Unable to copy to the same Region')
107        conn_params = self.connection.get_params()
108        rconn = region.connect(**conn_params)
109        kp = rconn.create_key_pair(self.name)
110        return kp
111
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