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# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# SPDX-License-Identifier: MPL-2.0
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
from collections import defaultdict
from . import dnskey
import os
import glob
########################################################################
# Class keydict
########################################################################
class keydict:
"""A dictionary of keys, indexed by name, algorithm, and key id"""
_keydict = defaultdict(lambda: defaultdict(dict))
_defttl = None
_missing = []
def __init__(self, dp=None, **kwargs):
self._defttl = kwargs.get("keyttl", None)
zones = kwargs.get("zones", None)
if not zones:
path = kwargs.get("path", None) or "."
self.readall(path)
else:
for zone in zones:
if "path" in kwargs and kwargs["path"] is not None:
path = kwargs["path"]
else:
path = dp and dp.policy(zone).directory or "."
if not self.readone(path, zone):
self._missing.append(zone)
def readall(self, path):
files = glob.glob(os.path.join(path, "*.private"))
for infile in files:
key = dnskey(infile, path, self._defttl)
self._keydict[key.name][key.alg][key.keyid] = key
def readone(self, path, zone):
if not zone.endswith("."):
zone += "."
match = "K" + zone + "+*.private"
files = glob.glob(os.path.join(path, match))
found = False
for infile in files:
key = dnskey(infile, path, self._defttl)
if key.fullname != zone: # shouldn't ever happen
continue
keyname = key.name if zone != "." else "."
self._keydict[keyname][key.alg][key.keyid] = key
found = True
return found
def __iter__(self):
for zone, algorithms in self._keydict.items():
for alg, keys in algorithms.items():
for key in keys.values():
yield key
def __getitem__(self, name):
return self._keydict[name]
def zones(self):
return self._keydict.keys()
def algorithms(self, zone):
return self._keydict[zone].keys()
def keys(self, zone, alg):
return self._keydict[zone][alg].keys()
def missing(self):
return self._missing
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