136 lines
4.8 KiB
Python
Executable file
136 lines
4.8 KiB
Python
Executable file
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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#
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# script to manipulate password file
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#
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# Copyright (C) 2017 AleaJactaEst
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import bcrypt
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import argparse
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import sys
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import os
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import getpass
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__VERSION__ = '1.0'
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class PasswordFile:
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def __init__(self, passwordfile, createfile, password_comand_line, username, password):
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self.passwordfile = passwordfile
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self.users = {}
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if not password_comand_line:
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if password is not None:
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raise Exception("password in command line (but option disable to read this password).")
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else:
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self.password = None
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elif password is None:
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raise Exception("Missing password.")
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else:
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self.password = password
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self.username = username
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if not os.path.exists(self.passwordfile):
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if createfile:
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with open(self.passwordfile, 'wt', encoding='utf-8') as fp:
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fp.write('\n')
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else:
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raise Exception("%s does not exist." % self.passwordfile)
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else:
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self.__load__()
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def __load__(self):
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with open(self.passwordfile, 'rt') as fp:
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for line in fp:
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line = line.strip()
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if not line:
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continue
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username, password = line.split(':', maxsplit=1)
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self.users.setdefault(username, password)
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def save(self):
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with open(self.passwordfile, 'wt', encoding='utf-8') as fp:
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for user in sorted(self.users):
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fp.write('%s:%s\n' % (user, self.users[user]))
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def update(self):
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if self.password is None:
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self.password = getpass.getpass('New password:')
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check = getpass.getpass('Re-type new password:')
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if self.password != check:
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raise Exception("password verification error")
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hashed_password = bcrypt.hashpw(self.password.encode('utf-8'), bcrypt.gensalt()).decode('utf8')
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self.users[self.username] = hashed_password
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print("Adding password for user %s" % self.username)
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def verify(self):
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if self.password is None:
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self.password = getpass.getpass('Enter password:')
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if bcrypt.checkpw(self.password.encode('utf-8'), self.users[self.username].encode('utf-8')):
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print("Password for user %s correct." % self.username)
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else:
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raise Exception("password verification failed.")
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def delete(self):
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if self.username in self.users:
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del self.users[self.username]
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def root(passwordfile, create, password_comand_line, username, password, delete, verify):
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pf = PasswordFile(passwordfile, create, password_comand_line, username, password)
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if delete:
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pf.delete()
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pf.save()
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elif verify:
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pf.verify()
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else:
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pf.update()
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pf.save()
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def main(args=sys.argv[1:]):
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""" Main function
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:param list args: root password
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"""
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parser = argparse.ArgumentParser(description='password manager')
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parser.add_argument('--version', action='version', version='%(prog)s ' + __VERSION__)
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parser.add_argument('-c', '--create', action='store_true',
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help='create a new file', default=False)
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parser.add_argument('-D', '--delete', action='store_true',
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help='delete username', default=False)
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parser.add_argument('-v', '--verify', action='store_true',
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help='Verify password for the specified user.', default=False)
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parser.add_argument('-b', '--password-comand-line', action='store_true',
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help='Use the password from the command line rather than prompting for it.',
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default=False)
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parser.add_argument('passwordfile', type=str, help='file contains all password')
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parser.add_argument('username', type=str)
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parser.add_argument('password', type=str, nargs='?')
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param = parser.parse_args(args)
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root(param.passwordfile,
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param.create,
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param.password_comand_line,
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param.username,
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param.password,
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param.delete, param.verify)
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if __name__ == '__main__':
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main()
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