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authorRuben Pollan <meskio@sindominio.net>2015-09-29 16:36:20 +0200
committerRuben Pollan <meskio@sindominio.net>2015-10-01 00:01:19 +0200
commit9a9c53eea49092e80737c84a2f850dd682c33ae3 (patch)
tree84534f413ad7d9b22d01abcbcdc74f4a503aa593
parent6a8cd66c656b810fb5052c75fa21002de5330273 (diff)
[feat] self-repair the keyring if keys get duplicated
In some cases in the past keys got stored twice in different documents. Hopefully this issue is solved now, this tries to self-repair the keyring if encounters that. This is not really solving the problem, if it keeps happening we need to investigate the source. - Resolves: #7498
-rw-r--r--changes/bug-7498_multiple_keys1
-rw-r--r--src/leap/keymanager/openpgp.py143
-rw-r--r--src/leap/keymanager/tests/__init__.py7
-rw-r--r--src/leap/keymanager/tests/test_openpgp.py104
4 files changed, 204 insertions, 51 deletions
diff --git a/changes/bug-7498_multiple_keys b/changes/bug-7498_multiple_keys
new file mode 100644
index 0000000..90cf675
--- /dev/null
+++ b/changes/bug-7498_multiple_keys
@@ -0,0 +1 @@
+- self-repair the keyring if keys get duplicated (Closes: #7485)
diff --git a/src/leap/keymanager/openpgp.py b/src/leap/keymanager/openpgp.py
index 069a78e..d648137 100644
--- a/src/leap/keymanager/openpgp.py
+++ b/src/leap/keymanager/openpgp.py
@@ -22,6 +22,7 @@ import os
import re
import shutil
import tempfile
+import traceback
import io
@@ -41,6 +42,8 @@ from leap.keymanager.keys import (
TYPE_ADDRESS_PRIVATE_INDEX,
KEY_ADDRESS_KEY,
KEY_ID_KEY,
+ KEY_FINGERPRINT_KEY,
+ KEY_REFRESHED_AT_KEY,
KEYMANAGER_ACTIVE_TYPE,
)
@@ -422,41 +425,42 @@ class OpenPGPScheme(EncryptionScheme):
:rtype: Deferred
"""
def check_and_put(docs, key):
- if len(docs) == 1:
- doc = docs.pop()
- oldkey = build_key_from_dict(OpenPGPKey, doc.content)
- if key.fingerprint == oldkey.fingerprint:
- # in case of an update of the key merge them with gnupg
- with TempGPGWrapper(gpgbinary=self._gpgbinary) as gpg:
- gpg.import_keys(oldkey.key_data)
- gpg.import_keys(key.key_data)
- gpgkey = gpg.list_keys(secret=key.private).pop()
- mergedkey = self._build_key_from_gpg(
- gpgkey,
- gpg.export_keys(gpgkey['fingerprint'],
- secret=key.private))
- mergedkey.validation = max(
- [key.validation, oldkey.validation])
- mergedkey.last_audited_at = oldkey.last_audited_at
- mergedkey.refreshed_at = key.refreshed_at
- mergedkey.encr_used = key.encr_used or oldkey.encr_used
- mergedkey.sign_used = key.sign_used or oldkey.sign_used
- doc.set_json(mergedkey.get_json())
- d = self._soledad.put_doc(doc)
- else:
- logger.critical(
- "Can't put a key whith the same key_id and different "
- "fingerprint: %s, %s"
- % (key.fingerprint, oldkey.fingerprint))
- d = defer.fail(
- errors.KeyFingerprintMismatch(key.fingerprint))
+ deferred_repair = defer.succeed(None)
+ if len(docs) == 0:
+ return self._soledad.create_doc_from_json(key.get_json())
elif len(docs) > 1:
+ deferred_repair = self._repair_key_docs(docs, key.key_id)
+
+ doc = docs[0]
+ oldkey = build_key_from_dict(OpenPGPKey, doc.content)
+ if key.fingerprint != oldkey.fingerprint:
logger.critical(
- "There is more than one key with the same key_id %s"
- % (key.key_id,))
- d = defer.fail(errors.KeyAttributesDiffer(key.key_id))
- else:
- d = self._soledad.create_doc_from_json(key.get_json())
+ "Can't put a key whith the same key_id and different "
+ "fingerprint: %s, %s"
+ % (key.fingerprint, oldkey.fingerprint))
+ return defer.fail(
+ errors.KeyFingerprintMismatch(key.fingerprint))
+
+ # in case of an update of the key merge them with gnupg
+ with TempGPGWrapper(gpgbinary=self._gpgbinary) as gpg:
+ gpg.import_keys(oldkey.key_data)
+ gpg.import_keys(key.key_data)
+ gpgkey = gpg.list_keys(secret=key.private).pop()
+ mergedkey = self._build_key_from_gpg(
+ gpgkey,
+ gpg.export_keys(gpgkey['fingerprint'],
+ secret=key.private))
+ mergedkey.validation = max(
+ [key.validation, oldkey.validation])
+ mergedkey.last_audited_at = oldkey.last_audited_at
+ mergedkey.refreshed_at = key.refreshed_at
+ mergedkey.encr_used = key.encr_used or oldkey.encr_used
+ mergedkey.sign_used = key.sign_used or oldkey.sign_used
+ doc.set_json(mergedkey.get_json())
+ deferred_put = self._soledad.put_doc(doc)
+
+ d = defer.gatherResults([deferred_put, deferred_repair])
+ d.addCallback(lambda res: res[0])
return d
d = self._soledad.get_from_index(
@@ -533,14 +537,21 @@ class OpenPGPScheme(EncryptionScheme):
self.KEY_TYPE,
key_id,
'1' if private else '0')
- d.addCallback(get_doc, key_id)
+ d.addCallback(get_doc, key_id, activedoc)
return d
- def get_doc(doclist, key_id):
- leap_assert(
- len(doclist) is 1,
- 'There is %d keys for id %s!' % (len(doclist), key_id))
- return doclist.pop()
+ def get_doc(doclist, key_id, activedoc):
+ if len(doclist) == 0:
+ logger.warning('There is no key for id %s! Self-repairing it.'
+ % (key_id))
+ d = self._soledad.delete_doc(activedoc)
+ d.addCallback(lambda _: None)
+ return d
+ elif len(doclist) > 1:
+ d = self._repair_key_docs(doclist, key_id)
+ d.addCallback(lambda _: doclist[0])
+ return d
+ return doclist[0]
d = self._soledad.get_from_index(
TYPE_ADDRESS_PRIVATE_INDEX,
@@ -598,18 +609,20 @@ class OpenPGPScheme(EncryptionScheme):
def delete_key(docs):
if len(docs) == 0:
raise errors.KeyNotFound(key)
- if len(docs) > 1:
- logger.critical("There is more than one key for key_id %s"
- % key.key_id)
-
- doc = None
- for d in docs:
- if d.content['fingerprint'] == key.fingerprint:
- doc = d
- break
- if doc is None:
+ elif len(docs) > 1:
+ logger.warning("There is more than one key for key_id %s"
+ % key.key_id)
+
+ has_deleted = False
+ deferreds = []
+ for doc in docs:
+ if doc.content['fingerprint'] == key.fingerprint:
+ d = self._soledad.delete_doc(doc)
+ deferreds.append(d)
+ has_deleted = True
+ if not has_deleted:
raise errors.KeyNotFound(key)
- return self._soledad.delete_doc(doc)
+ return defer.gatherResults(deferreds)
d = self._soledad.get_from_index(
TYPE_ID_PRIVATE_INDEX,
@@ -621,6 +634,36 @@ class OpenPGPScheme(EncryptionScheme):
d.addCallback(delete_key)
return d
+ def _repair_key_docs(self, doclist, key_id):
+ """
+ If there is more than one key for a key id try to self-repair it
+
+ :return: a Deferred that will be fired once all the deletions are
+ completed
+ :rtype: Deferred
+ """
+ logger.error("BUG ---------------------------------------------------")
+ logger.error("There is more than one key with the same key_id %s:"
+ % (key_id,))
+
+ def log_key_doc(doc):
+ logger.error("\t%s: %s" % (doc.content[KEY_ADDRESS_KEY],
+ doc.content[KEY_FINGERPRINT_KEY]))
+
+ doclist.sort(key=lambda doc: doc.content[KEY_REFRESHED_AT_KEY],
+ reverse=True)
+ log_key_doc(doclist[0])
+ deferreds = []
+ for doc in doclist[1:]:
+ log_key_doc(doc)
+ d = self._soledad.delete_doc(doc)
+ deferreds.append(d)
+
+ logger.error("")
+ logger.error(traceback.extract_stack())
+ logger.error("BUG (please report above info) ------------------------")
+ return defer.gatherResults(deferreds, consumeErrors=True)
+
#
# Data encryption, decryption, signing and verifying
#
diff --git a/src/leap/keymanager/tests/__init__.py b/src/leap/keymanager/tests/__init__.py
index 9b95e1a..cd612c4 100644
--- a/src/leap/keymanager/tests/__init__.py
+++ b/src/leap/keymanager/tests/__init__.py
@@ -66,9 +66,15 @@ class KeyManagerWithSoledadTestCase(unittest.TestCase, BaseLeapTest):
for private in [True, False]:
d = km.get_all_keys(private=private)
d.addCallback(delete_keys)
+ d.addCallback(check_deleted, private)
deferreds.append(d)
return gatherResults(deferreds)
+ def check_deleted(_, private):
+ d = km.get_all_keys(private=private)
+ d.addCallback(lambda keys: self.assertEqual(keys, []))
+ return d
+
# wait for the indexes to be ready for the tear down
d = km._wrapper_map[OpenPGPKey].deferred_indexes
d.addCallback(get_and_delete_keys)
@@ -91,6 +97,7 @@ class KeyManagerWithSoledadTestCase(unittest.TestCase, BaseLeapTest):
# key 24D18DDF: public key "Leap Test Key <leap@leap.se>"
+KEY_ID = "2F455E2824D18DDF"
KEY_FINGERPRINT = "E36E738D69173C13D709E44F2F455E2824D18DDF"
PUBLIC_KEY = """
-----BEGIN PGP PUBLIC KEY BLOCK-----
diff --git a/src/leap/keymanager/tests/test_openpgp.py b/src/leap/keymanager/tests/test_openpgp.py
index 5f85c74..bae83db 100644
--- a/src/leap/keymanager/tests/test_openpgp.py
+++ b/src/leap/keymanager/tests/test_openpgp.py
@@ -21,12 +21,15 @@ Tests for the OpenPGP support on Key Manager.
"""
-from twisted.internet.defer import inlineCallbacks
+from datetime import datetime
+from mock import Mock
+from twisted.internet.defer import inlineCallbacks, gatherResults, succeed
from leap.keymanager import (
KeyNotFound,
openpgp,
)
+from leap.keymanager.keys import TYPE_ID_PRIVATE_INDEX
from leap.keymanager.openpgp import OpenPGPKey
from leap.keymanager.tests import (
KeyManagerWithSoledadTestCase,
@@ -34,6 +37,7 @@ from leap.keymanager.tests import (
ADDRESS_2,
KEY_FINGERPRINT,
PUBLIC_KEY,
+ KEY_ID,
PUBLIC_KEY_2,
PRIVATE_KEY,
PRIVATE_KEY_2,
@@ -247,6 +251,104 @@ class OpenPGPCryptoTestCase(KeyManagerWithSoledadTestCase):
validsign = pgp.verify(data, pubkey, detached_sig=signature)
self.assertTrue(validsign)
+ @inlineCallbacks
+ def test_self_repair_three_keys(self):
+ pgp = openpgp.OpenPGPScheme(
+ self._soledad, gpgbinary=self.gpg_binary_path)
+ yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
+
+ get_from_index = self._soledad.get_from_index
+ delete_doc = self._soledad.delete_doc
+
+ def my_get_from_index(*args):
+ if (args[0] == TYPE_ID_PRIVATE_INDEX and
+ args[2] == KEY_ID):
+ k1 = OpenPGPKey(ADDRESS, key_id="1",
+ refreshed_at=datetime(2005, 1, 1))
+ k2 = OpenPGPKey(ADDRESS, key_id="2",
+ refreshed_at=datetime(2007, 1, 1))
+ k3 = OpenPGPKey(ADDRESS, key_id="3",
+ refreshed_at=datetime(2001, 1, 1))
+ d1 = self._soledad.create_doc_from_json(k1.get_json())
+ d2 = self._soledad.create_doc_from_json(k2.get_json())
+ d3 = self._soledad.create_doc_from_json(k3.get_json())
+ return gatherResults([d1, d2, d3])
+ return get_from_index(*args)
+
+ self._soledad.get_from_index = my_get_from_index
+ self._soledad.delete_doc = Mock(return_value=succeed(None))
+
+ key = yield pgp.get_key(ADDRESS, private=False)
+
+ try:
+ self.assertEqual(key.key_id, "2")
+ self.assertEqual(self._soledad.delete_doc.call_count, 2)
+ finally:
+ self._soledad.get_from_index = get_from_index
+ self._soledad.delete_doc = delete_doc
+
+ @inlineCallbacks
+ def test_self_repair_no_keys(self):
+ pgp = openpgp.OpenPGPScheme(
+ self._soledad, gpgbinary=self.gpg_binary_path)
+ yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
+
+ get_from_index = self._soledad.get_from_index
+ delete_doc = self._soledad.delete_doc
+
+ def my_get_from_index(*args):
+ if (args[0] == TYPE_ID_PRIVATE_INDEX and
+ args[2] == KEY_ID):
+ return succeed([])
+ return get_from_index(*args)
+
+ self._soledad.get_from_index = my_get_from_index
+ self._soledad.delete_doc = Mock(return_value=succeed(None))
+
+ try:
+ yield self.assertFailure(pgp.get_key(ADDRESS, private=False),
+ KeyNotFound)
+ self.assertEqual(self._soledad.delete_doc.call_count, 1)
+ finally:
+ self._soledad.get_from_index = get_from_index
+ self._soledad.delete_doc = delete_doc
+
+ @inlineCallbacks
+ def test_self_repair_put_keys(self):
+ pgp = openpgp.OpenPGPScheme(
+ self._soledad, gpgbinary=self.gpg_binary_path)
+
+ get_from_index = self._soledad.get_from_index
+ delete_doc = self._soledad.delete_doc
+
+ def my_get_from_index(*args):
+ if (args[0] == TYPE_ID_PRIVATE_INDEX and
+ args[2] == KEY_ID):
+ k1 = OpenPGPKey(ADDRESS, key_id="1",
+ fingerprint=KEY_FINGERPRINT,
+ refreshed_at=datetime(2005, 1, 1))
+ k2 = OpenPGPKey(ADDRESS, key_id="2",
+ fingerprint=KEY_FINGERPRINT,
+ refreshed_at=datetime(2007, 1, 1))
+ k3 = OpenPGPKey(ADDRESS, key_id="3",
+ fingerprint=KEY_FINGERPRINT,
+ refreshed_at=datetime(2001, 1, 1))
+ d1 = self._soledad.create_doc_from_json(k1.get_json())
+ d2 = self._soledad.create_doc_from_json(k2.get_json())
+ d3 = self._soledad.create_doc_from_json(k3.get_json())
+ return gatherResults([d1, d2, d3])
+ return get_from_index(*args)
+
+ self._soledad.get_from_index = my_get_from_index
+ self._soledad.delete_doc = Mock(return_value=succeed(None))
+
+ try:
+ yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
+ self.assertEqual(self._soledad.delete_doc.call_count, 2)
+ finally:
+ self._soledad.get_from_index = get_from_index
+ self._soledad.delete_doc = delete_doc
+
def _assert_key_not_found(self, pgp, address, private=False):
d = pgp.get_key(address, private=private)
return self.assertFailure(d, KeyNotFound)