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Merge pull request #1906 from enkore/f/check-corrupted-manifest

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check: handle corrupted manifest
This commit is contained in:
TW 2016-11-30 04:31:58 +01:00 committed by GitHub
commit 8ddbc45c29
2 changed files with 43 additions and 3 deletions
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17
borg/archive.py
View file

@ -19,7 +19,7 @@
from .helpers import Error, uid2user, user2uid, gid2group, group2gid, bin_to_hex, \
parse_timestamp, to_localtime, format_time, format_timedelta, remove_surrogates, \
Manifest, Statistics, decode_dict, make_path_safe, StableDict, int_to_bigint, bigint_to_int, \
ProgressIndicatorPercent
ProgressIndicatorPercent, IntegrityError
from .platform import acl_get, acl_set
from .chunker import Chunker
from .hashindex import ChunkIndex
@ -849,7 +849,13 @@ def check(self, repository, repair=False, archive=None, last=None, prefix=None,
self.error_found = True
self.manifest = self.rebuild_manifest()
else:
self.manifest, _ = Manifest.load(repository, key=self.key)
try:
self.manifest, _ = Manifest.load(repository, key=self.key)
except IntegrityError as exc:
logger.error('Repository manifest is corrupted: %s', exc)
self.error_found = True
del self.chunks[Manifest.MANIFEST_ID]
self.manifest = self.rebuild_manifest()
self.rebuild_refcounts(archive=archive, last=last, prefix=prefix)
self.orphan_chunks_check()
self.finish(save_space=save_space)
@ -906,7 +912,12 @@ def valid_archive(obj):
archive_keys_serialized = [msgpack.packb(name) for name in ARCHIVE_KEYS]
for chunk_id, _ in self.chunks.iteritems():
cdata = self.repository.get(chunk_id)
data = self.key.decrypt(chunk_id, cdata)
try:
data = self.key.decrypt(chunk_id, cdata)
except IntegrityError as exc:
logger.error('Skipping corrupted chunk: %s', exc)
self.error_found = True
continue
if not valid_msgpacked_dict(data, archive_keys_serialized):
continue
if b'cmdline' not in data or b'\xa7version\x01' not in data:

29
borg/testsuite/archiver.py
View file

@ -1433,6 +1433,35 @@ def test_missing_manifest(self):
self.assert_in('archive2', output)
self.cmd('check', self.repository_location, exit_code=0)
def test_corrupted_manifest(self):
archive, repository = self.open_archive('archive1')
with repository:
manifest = repository.get(Manifest.MANIFEST_ID)
corrupted_manifest = manifest + b'corrupted!'
repository.put(Manifest.MANIFEST_ID, corrupted_manifest)
repository.commit()
self.cmd('check', self.repository_location, exit_code=1)
output = self.cmd('check', '-v', '--repair', self.repository_location, exit_code=0)
self.assert_in('archive1', output)
self.assert_in('archive2', output)
self.cmd('check', self.repository_location, exit_code=0)
def test_manifest_rebuild_corrupted_chunk(self):
archive, repository = self.open_archive('archive1')
with repository:
manifest = repository.get(Manifest.MANIFEST_ID)
corrupted_manifest = manifest + b'corrupted!'
repository.put(Manifest.MANIFEST_ID, corrupted_manifest)
chunk = repository.get(archive.id)
corrupted_chunk = chunk + b'corrupted!'
repository.put(archive.id, corrupted_chunk)
repository.commit()
self.cmd('check', self.repository_location, exit_code=1)
output = self.cmd('check', '-v', '--repair', self.repository_location, exit_code=0)
self.assert_in('archive2', output)
self.cmd('check', self.repository_location, exit_code=0)
def test_extra_chunks(self):
self.cmd('check', self.repository_location, exit_code=0)
with Repository(self.repository_location, exclusive=True) as repository: