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106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
#!/usr/bin/env python
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"""Simple command line interface to get/set password from a keyring"""
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from __future__ import print_function
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import getpass
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from optparse import OptionParser
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import sys
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from . import get_keyring, set_keyring, get_password, set_password, delete_password
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from . import core
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class CommandLineTool(object):
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def __init__(self):
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self.parser = OptionParser(
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usage="%prog [get|set|del] SERVICE USERNAME")
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self.parser.add_option("-p", "--keyring-path",
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dest="keyring_path", default=None,
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help="Path to the keyring backend")
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self.parser.add_option("-b", "--keyring-backend",
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dest="keyring_backend", default=None,
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help="Name of the keyring backend")
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def run(self, argv):
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opts, args = self.parser.parse_args(argv)
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try:
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kind, service, username = args
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except ValueError:
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if len(args) == 0:
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# Be nice with the user if he just tries to launch the tool
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self.parser.print_help()
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return 1
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else:
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self.parser.error("Wrong number of arguments")
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if opts.keyring_backend is not None:
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try:
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if opts.keyring_path:
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sys.path.insert(0, opts.keyring_path)
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backend = core.load_keyring(opts.keyring_backend)
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set_keyring(backend)
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except (Exception,):
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# Tons of things can go wrong here:
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# ImportError when using "fjkljfljkl"
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# AttributeError when using "os.path.bar"
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# TypeError when using "__builtins__.str"
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# So, we play on the safe side, and catch everything.
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e = sys.exc_info()[1]
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self.parser.error("Unable to load specified keyring: %s" % e)
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if kind == 'get':
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password = get_password(service, username)
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if password is None:
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return 1
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self.output_password(password)
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return 0
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elif kind == 'set':
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password = self.input_password("Password for '%s' in '%s': " %
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(username, service))
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set_password(service, username, password)
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return 0
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elif kind == 'del':
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password = self.input_password("Deleting password for '%s' in '%s': " %
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(username, service))
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delete_password(service, username)
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return 0
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else:
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self.parser.error("You can only 'get', 'del' or 'set' a password.")
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pass
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def input_password(self, prompt):
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"""Ask for a password to the user.
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This mostly exists to ease the testing process.
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"""
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return getpass.getpass(prompt)
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def output_password(self, password):
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"""Output the password to the user.
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This mostly exists to ease the testing process.
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"""
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print(password, file=sys.stdout)
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def main(argv=None):
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"""Main command line interface."""
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if argv is None:
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argv = sys.argv[1:]
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cli = CommandLineTool()
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return cli.run(argv)
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if __name__ == '__main__':
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sys.exit(main())
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