1 files changed, 87 insertions, 0 deletions
diff --git a/bin/python/isc/keydict.py.in b/bin/python/isc/keydict.py.in
new file mode 100644
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+++ b/bin/python/isc/keydict.py.in
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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