def hashes_changed(src_rp, mir_rorp):
"""Return 0 if their data hashes same, 1 otherwise"""
verify_sha1 = Hardlink.get_hash(mir_rorp)
if not verify_sha1:
log.Log("Metadata file has no digest for mirror file {mf}, "
"unable to compare.".format(mf=mir_rorp), log.WARNING)
return 0
elif (src_rp.getsize() == mir_rorp.getsize()
and hash.compute_sha1(src_rp) == verify_sha1):
return 0
return 1
def Verify(mirror_rp, inc_rp, verify_time):
"""Compute SHA1 sums of repository files and check against metadata"""
assert mirror_rp.conn is Globals.local_connection, (
"Only verify mirror locally, not remotely over '{conn}'.".format(
conn=mirror_rp.conn))
repo_iter = RepoSide.init_and_get_iter(mirror_rp, inc_rp, verify_time)
base_index = RepoSide.mirror_base.index
bad_files = 0
no_hash = 0
for repo_rorp in repo_iter:
if not repo_rorp.isreg():
continue
verify_sha1 = Hardlink.get_hash(repo_rorp)
if not verify_sha1:
log.Log("Cannot find SHA1 digest for file {fi}, "
"perhaps because this feature was added in v1.1.1".format(
fi=repo_rorp), log.WARNING)
no_hash += 1
continue
fp = RepoSide.rf_cache.get_fp(base_index + repo_rorp.index, repo_rorp)
computed_hash = hash.compute_sha1_fp(fp)
if computed_hash == verify_sha1:
log.Log("Verified SHA1 digest of file {fi}".format(fi=repo_rorp),
log.INFO)
else:
bad_files += 1
log.Log("Computed SHA1 digest of file {fi} '{cd}' "
"doesn't match recorded digest of '{rd}'. "
"Your backup repository may be corrupted!".format(
fi=repo_rorp, cd=computed_hash, rd=verify_sha1),
log.WARNING)
RepoSide.close_rf_cache()
if bad_files:
log.Log("Verification found {cf} potentially corrupted files".format(
cf=bad_files), log.ERROR)
return 2
if no_hash:
log.Log("Verification found {fi} files without hash, all others "
"could be verified successfully".format(fi=no_hash), log.NOTE)
else:
log.Log("All files verified successfully", log.NOTE)
return 0
