-import tempfile
-import subprocess
+import glob, grp, pwd, stat, tempfile, subprocess
+import bup.helpers as helpers
from bup import metadata
+from bup.helpers import clear_errors, detect_fakeroot, is_superuser
from wvtest import *
-@wvtest
-def test__normalize_ts():
- normalize = metadata._normalize_ts
- bns = 10**9
- for ts in ((0, 0), (-1, 0), (0, bns - 1), (-1, bns - 1)):
- WVPASSEQ(normalize(ts), ts)
- WVPASSEQ(normalize((0, -1)), (-1, bns - 1))
- WVPASSEQ(normalize((-1, -1)), (-2, bns - 1))
- WVPASSEQ(normalize((0, bns)), (1, 0))
- WVPASSEQ(normalize((0, bns + 1)), (1, 1))
- WVPASSEQ(normalize((0, -bns)), (-1, 0))
- WVPASSEQ(normalize((0, -(bns + 1))), (-2, bns - 1))
- WVPASSEQ(normalize((0, 3 * bns)), (3, 0))
- WVPASSEQ(normalize((0, -3 * bns)), (-3, 0))
+top_dir = os.getcwd()
+
+
+def ex(*cmd):
+ try:
+ cmd_str = ' '.join(cmd)
+ print >> sys.stderr, cmd_str
+ rc = subprocess.call(cmd)
+ if rc < 0:
+ print >> sys.stderr, 'terminated by signal', - rc
+ sys.exit(1)
+ elif rc > 0:
+ print >> sys.stderr, 'returned exit status', rc
+ sys.exit(1)
+ except OSError, e:
+ print >> sys.stderr, 'subprocess call failed:', e
+ sys.exit(1)
+
+
+def setup_testfs():
+ # Set up testfs with user_xattr, etc.
+ subprocess.call(['umount', 'testfs'])
+ ex('dd', 'if=/dev/zero', 'of=testfs.img', 'bs=1M', 'count=32')
+ ex('mke2fs', '-F', '-j', '-m', '0', 'testfs.img')
+ ex('rm', '-rf', 'testfs')
+ os.mkdir('testfs')
+ ex('mount', '-o', 'loop,acl,user_xattr', 'testfs.img', 'testfs')
+ # Hide, so that tests can't create risks.
+ os.chown('testfs', 0, 0)
+ os.chmod('testfs', 0700)
+
+
+def cleanup_testfs():
+ subprocess.call(['umount', 'testfs'])
+ helpers.unlink('testfs.img')
@wvtest
WVPASSEQ(cleanup('///foo/bar'), 'foo/bar')
+def _first_err():
+ if helpers.saved_errors:
+ return str(helpers.saved_errors[0])
+ return ''
+
+
@wvtest
def test_from_path_error():
+ if is_superuser() or detect_fakeroot():
+ return
+ tmpdir = tempfile.mkdtemp(prefix='bup-tmetadata-')
+ try:
+ path = tmpdir + '/foo'
+ os.mkdir(path)
+ m = metadata.from_path(path, archive_path=path, save_symlinks=True)
+ WVPASSEQ(m.path, path)
+ os.chmod(path, 000)
+ metadata.from_path(path, archive_path=path, save_symlinks=True)
+ if metadata.get_linux_file_attr:
+ WVPASS(len(helpers.saved_errors) == 1)
+ errmsg = _first_err()
+ WVPASS(errmsg.startswith('read Linux attr'))
+ clear_errors()
+ finally:
+ subprocess.call(['rm', '-rf', tmpdir])
+
+
+@wvtest
+def test_apply_to_path_restricted_access():
+ if is_superuser() or detect_fakeroot():
+ return
tmpdir = tempfile.mkdtemp(prefix='bup-tmetadata-')
try:
path = tmpdir + '/foo'
- subprocess.call(['mkdir', path])
+ os.mkdir(path)
+ clear_errors()
m = metadata.from_path(path, archive_path=path, save_symlinks=True)
WVPASSEQ(m.path, path)
- subprocess.call(['chmod', '000', path])
- WVEXCEPT(metadata.MetadataAcquisitionError,
- metadata.from_path,
- path,
- archive_path=path,
- save_symlinks=True)
+ os.chmod(tmpdir, 000)
+ m.apply_to_path(path)
+ WVPASS(len(helpers.saved_errors) == 1)
+ errmsg = _first_err()
+ WVPASS(errmsg.startswith('utime: '))
+ clear_errors()
finally:
subprocess.call(['rm', '-rf', tmpdir])
@wvtest
-def test_apply_to_path_error():
+def test_restore_restricted_user_group():
+ if is_superuser() or detect_fakeroot():
+ return
tmpdir = tempfile.mkdtemp(prefix='bup-tmetadata-')
try:
path = tmpdir + '/foo'
- subprocess.call(['mkdir', path])
+ os.mkdir(path)
m = metadata.from_path(path, archive_path=path, save_symlinks=True)
WVPASSEQ(m.path, path)
- subprocess.call(['chmod', '000', tmpdir])
- WVEXCEPT(metadata.MetadataApplicationError,
- m.apply_to_path, path)
- subprocess.call(['chmod', '700', tmpdir])
+ WVPASSEQ(m.apply_to_path(path), None)
+ orig_uid = m.uid
+ m.uid = 0;
+ m.apply_to_path(path, restore_numeric_ids=True)
+ WVPASS(len(helpers.saved_errors) == 1)
+ errmsg = _first_err()
+ WVPASS(errmsg.startswith('lchown: '))
+ clear_errors()
+ m.uid = orig_uid
+ m.gid = 0;
+ m.apply_to_path(path, restore_numeric_ids=True)
+ WVPASS(len(helpers.saved_errors) == 1)
+ errmsg = _first_err()
+ WVPASS(errmsg.startswith('lchown: ') or os.stat(path).st_gid == m.gid)
+ clear_errors()
finally:
subprocess.call(['rm', '-rf', tmpdir])
+
+
+@wvtest
+def test_restore_nonexistent_user_group():
+ tmpdir = tempfile.mkdtemp(prefix='bup-tmetadata-')
+ try:
+ path = tmpdir + '/foo'
+ os.mkdir(path)
+ m = metadata.from_path(path, archive_path=path, save_symlinks=True)
+ WVPASSEQ(m.path, path)
+ junk,m.user = max([(len(x.pw_name), x.pw_name + 'x')
+ for x in pwd.getpwall()])
+ junk,m.group = max([(len(x.gr_name), x.gr_name + 'x')
+ for x in grp.getgrall()])
+ WVPASSEQ(m.apply_to_path(path, restore_numeric_ids=True), None)
+ WVPASSEQ(os.stat(path).st_uid, m.uid)
+ WVPASSEQ(os.stat(path).st_gid, m.gid)
+ WVPASSEQ(m.apply_to_path(path, restore_numeric_ids=False), None)
+ WVPASSEQ(os.stat(path).st_uid, m.uid)
+ WVPASSEQ(os.stat(path).st_gid, m.gid)
+ finally:
+ subprocess.call(['rm', '-rf', tmpdir])
+
+
+@wvtest
+def test_restore_over_existing_target():
+ tmpdir = tempfile.mkdtemp(prefix='bup-tmetadata-')
+ try:
+ path = tmpdir + '/foo'
+ os.mkdir(path)
+ dir_m = metadata.from_path(path, archive_path=path, save_symlinks=True)
+ os.rmdir(path)
+ open(path, 'w').close()
+ file_m = metadata.from_path(path, archive_path=path, save_symlinks=True)
+ # Restore dir over file.
+ WVPASSEQ(dir_m.create_path(path, create_symlinks=True), None)
+ WVPASS(stat.S_ISDIR(os.stat(path).st_mode))
+ # Restore dir over dir.
+ WVPASSEQ(dir_m.create_path(path, create_symlinks=True), None)
+ WVPASS(stat.S_ISDIR(os.stat(path).st_mode))
+ # Restore file over dir.
+ WVPASSEQ(file_m.create_path(path, create_symlinks=True), None)
+ WVPASS(stat.S_ISREG(os.stat(path).st_mode))
+ # Restore file over file.
+ WVPASSEQ(file_m.create_path(path, create_symlinks=True), None)
+ WVPASS(stat.S_ISREG(os.stat(path).st_mode))
+ # Restore file over non-empty dir.
+ os.remove(path)
+ os.mkdir(path)
+ open(path + '/bar', 'w').close()
+ WVEXCEPT(Exception, file_m.create_path, path, create_symlinks=True)
+ # Restore dir over non-empty dir.
+ os.remove(path + '/bar')
+ os.mkdir(path + '/bar')
+ WVEXCEPT(Exception, dir_m.create_path, path, create_symlinks=True)
+ finally:
+ subprocess.call(['rm', '-rf', tmpdir])
+
+
+from bup.metadata import posix1e
+if not posix1e:
+ @wvtest
+ def POSIX1E_ACL_SUPPORT_IS_MISSING():
+ pass
+
+
+from bup.metadata import xattr
+if not xattr:
+ @wvtest
+ def LINUX_XATTR_SUPPORT_IS_MISSING():
+ pass
+else:
+ @wvtest
+ def test_handling_of_incorrect_existing_linux_xattrs():
+ if not is_superuser():
+ return
+ setup_testfs()
+ for f in glob.glob('testfs/*'):
+ ex('rm', '-rf', f)
+ path = 'testfs/foo'
+ open(path, 'w').close()
+ xattr.set(path, 'foo', 'bar', namespace=xattr.NS_USER)
+ m = metadata.from_path(path, archive_path=path, save_symlinks=True)
+ xattr.set(path, 'baz', 'bax', namespace=xattr.NS_USER)
+ m.apply_to_path(path, restore_numeric_ids=False)
+ WVPASSEQ(xattr.list(path), ['user.foo'])
+ WVPASSEQ(xattr.get(path, 'user.foo'), 'bar')
+ xattr.set(path, 'foo', 'baz', namespace=xattr.NS_USER)
+ m.apply_to_path(path, restore_numeric_ids=False)
+ WVPASSEQ(xattr.list(path), ['user.foo'])
+ WVPASSEQ(xattr.get(path, 'user.foo'), 'bar')
+ xattr.remove(path, 'foo', namespace=xattr.NS_USER)
+ m.apply_to_path(path, restore_numeric_ids=False)
+ WVPASSEQ(xattr.list(path), ['user.foo'])
+ WVPASSEQ(xattr.get(path, 'user.foo'), 'bar')
+ os.chdir(top_dir)
+ cleanup_testfs()
projects / bup.git / blobdiff