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Name	Size	Permission
macOS	[ DIR ]	drwxr-xr-x
__pycache__	[ DIR ]	drwxr-xr-x
chainer.py	2.15 KB	-rw-r--r--
fail.py	836 B	-rw-r--r--
__init__.py	0 B	-rw-r--r--
kwallet.py	5.71 KB	-rw-r--r--
libsecret.py	5.8 KB	-rw-r--r--
null.py	360 B	-rw-r--r--
OS_X.py	222 B	-rw-r--r--
SecretService.py	4.63 KB	-rw-r--r--
Windows.py	5.68 KB	-rw-r--r--

Code Editor : chainer.py

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

from .. import backend
from ..util import properties
from . import fail

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):
        """
        If there are backends to chain, high priority
        Otherwise very low priority since our operation when empty
        is the same as null.
        """
        return 10 if len(cls.backends) > 1 else (fail.Keyring.priority - 1)

@properties.ClassProperty
    @classmethod
    def backends(cls):
        """
        Discover all keyrings for chaining.
        """

def allow(keyring):
            limit = backend._limit or bool
            return (
                not isinstance(keyring, ChainerBackend)
                and limit(keyring)
                and keyring.priority > 0
            )

allowed = filter(allow, backend.get_all_keyring())
        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