workflow.py 文件源码

def get_password(self, account, service=None):
        """Retrieve the password saved at ``service/account``.

        Raise :class:`PasswordNotFound` exception if password doesn't exist.

        :param account: name of the account the password is for, e.g.
            "Pinboard"
        :type account: ``unicode``
        :param service: Name of the service. By default, this is the workflow's
                        bundle ID
        :type service: ``unicode``
        :returns: account password
        :rtype: ``unicode``

        """
        if not service:
            service = self.bundleid

        output = self._call_security('find-generic-password', service,
                                     account, '-g')

        # Parsing of `security` output is adapted from python-keyring
        # by Jason R. Coombs
        # https://pypi.python.org/pypi/keyring
        m = re.search(
            r'password:\s*(?:0x(?P<hex>[0-9A-F]+)\s*)?(?:"(?P<pw>.*)")?',
            output)

        if m:
            groups = m.groupdict()
            h = groups.get('hex')
            password = groups.get('pw')
            if h:
                password = unicode(binascii.unhexlify(h), 'utf-8')

        self.logger.debug('Got password : %s:%s', service, account)

        return password