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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
OS_X.py	1.47 KB	-rw-r--r--
SecretService.py	3.37 KB	-rw-r--r--
Windows.py	5.48 KB	-rw-r--r--
_OS_X_API.py	9.29 KB	-rw-r--r--
__init__.py	0 B	-rw-r--r--
chainer.py	1.98 KB	-rw-r--r--
fail.py	675 B	-rw-r--r--
kwallet.py	4.71 KB	-rw-r--r--
null.py	344 B	-rw-r--r--

Code Editor : chainer.py

"""
Keyring Chainer - iterates over other viable backends to
discover passwords in each.
"""

from __future__ import absolute_import

from .. import backend
from ..util import properties

class ChainerBackend(backend.KeyringBackend):
    """
    >>> ChainerBackend()
    <keyring.backends.chainer.ChainerBackend object at ...>
    """

# override viability as 'priority' cannot be determined
    # until other backends have been constructed
    viable = True

@properties.ClassProperty
    @classmethod
    def priority(cls):
        """
        High-priority if there are backends to chain, otherwise 0.
        """
        return 10 * (len(cls.backends) > 1)

@properties.ClassProperty
    @classmethod
    def backends(cls):
        """
        Discover all keyrings for chaining.
        """
        allowed = (
            keyring
            for keyring in filter(backend._limit, backend.get_all_keyring())
            if not isinstance(keyring, ChainerBackend)
            and keyring.priority > 0
        )
        return sorted(allowed, key=backend.by_priority, reverse=True)

def get_password(self, service, username):
        for keyring in self.backends:
            password = keyring.get_password(service, username)
            if password is not None:
                return password

def set_password(self, service, username, password):
        for keyring in self.backends:
            try:
                return keyring.set_password(service, username, password)
            except NotImplementedError:
                pass

def delete_password(self, service, username):
        for keyring in self.backends:
            try:
                return keyring.delete_password(service, username)
            except NotImplementedError:
                pass

def get_credential(self, service, username):
        for keyring in self.backends:
            credential = keyring.get_credential(service, username)
            if credential is not None:
                return credential

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Code Editor : chainer.py