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# -*- Mode:Python; indent-tabs-mode:nil; tab-width:4 -*-
#
# Copyright 2002 Ben Escoto <ben@emerose.org>
# Copyright 2007 Kenneth Loafman <kenneth@loafman.com>
#
# This file is part of duplicity.
#
# Duplicity is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# Duplicity is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with duplicity; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import config
import sys, cStringIO, os, unittest
sys.path.insert(0, "../")
from duplicity import diffdir
from duplicity import patchdir
from duplicity import log
from duplicity import selection
from duplicity import tarfile
from duplicity import librsync
from duplicity.path import *
config.setup()
class PatchingTest(unittest.TestCase):
"""Test patching"""
def setUp(self):
assert not os.system("tar xzf testfiles.tar.gz > /dev/null 2>&1")
def tearDown(self):
assert not os.system("rm -rf testfiles tempdir temp2.tar")
def copyfileobj(self, infp, outfp):
"""Copy in fileobj to out, closing afterwards"""
blocksize = 32 * 1024
while 1:
buf = infp.read(blocksize)
if not buf: break
outfp.write(buf)
assert not infp.close()
assert not outfp.close()
def deltmp(self):
"""Delete temporary directories"""
assert not os.system("rm -rf testfiles/output")
os.mkdir("testfiles/output")
def test_total(self):
"""Test cycle on dirx"""
self.total_sequence(['testfiles/dir1',
'testfiles/dir2',
'testfiles/dir3'])
def get_sel(self, path):
"""Get selection iter over the given directory"""
return selection.Select(path).set_iter()
def total_sequence(self, filelist):
"""Test signatures, diffing, and patching on directory list"""
assert len(filelist) >= 2
self.deltmp()
sig = Path("testfiles/output/sig.tar")
diff = Path("testfiles/output/diff.tar")
seq_path = Path("testfiles/output/sequence")
new_path, old_path = None, None # set below in for loop
# Write initial full backup to diff.tar
for dirname in filelist:
old_path, new_path = new_path, Path(dirname)
if old_path:
sigblock = diffdir.DirSig(self.get_sel(seq_path))
diffdir.write_block_iter(sigblock, sig)
deltablock = diffdir.DirDelta(self.get_sel(new_path),
sig.open("rb"))
else: deltablock = diffdir.DirFull(self.get_sel(new_path))
diffdir.write_block_iter(deltablock, diff)
patchdir.Patch(seq_path, diff.open("rb"))
#print "#########", seq_path, new_path
assert seq_path.compare_recursive(new_path, 1)
def test_root(self):
"""Test changing uid/gid, devices"""
self.deltmp()
os.system("cp -pR testfiles/root1 testfiles/output/sequence")
seq_path = Path("testfiles/output/sequence")
new_path = Path("testfiles/root2")
sig = Path("testfiles/output/sig.tar")
diff = Path("testfiles/output/diff.tar")
diffdir.write_block_iter(diffdir.DirSig(self.get_sel(seq_path)), sig)
deltablock = diffdir.DirDelta(self.get_sel(new_path), sig.open("rb"))
diffdir.write_block_iter(deltablock, diff)
patchdir.Patch(seq_path, diff.open("rb"))
# since we are not running as root, don't even both comparing,
# just make sure file5 exists and file4 doesn't.
file5 = seq_path.append("file5")
assert file5.isreg()
file4 = seq_path.append("file4")
assert file4.type is None
def test_root2(self):
"""Again test files we don't have access to, this time Tar_WriteSig"""
self.deltmp()
sig_path = Path("testfiles/output/sig.sigtar")
tar_path = Path("testfiles/output/tar.tar")
basis_path = Path("testfiles/root1")
deltablock = diffdir.DirFull_WriteSig(self.get_sel(basis_path),
sig_path.open("wb"))
diffdir.write_block_iter(deltablock, tar_path)
def test_block_tar(self):
"""Test building block tar from a number of files"""
def get_fileobjs():
"""Return iterator yielding open fileobjs of tar files"""
for i in range(1, 4):
p = Path("testfiles/blocktartest/test%d.tar" % i)
fp = p.open("rb")
yield fp
fp.close()
tf = patchdir.TarFile_FromFileobjs(get_fileobjs())
namelist = []
for tarinfo in tf: namelist.append(tarinfo.name)
for i in range(1, 6):
assert ("tmp/%d" % i) in namelist, namelist
def test_doubledot_hole(self):
"""Test for the .. bug that lets tar overwrite parent dir"""
self.deltmp()
def make_bad_tar(filename):
"""Write attack tarfile to filename"""
def iterate_one_pair(path):
"""Iterate one (tarinfo, fp) pair
file object will be empty, and tarinfo will have path
"snapshot/../warning-security-error"
"""
path.index = ("diff", "..", "warning-security-error")
ti = path.get_tarinfo()
fp = cStringIO.StringIO("")
yield (ti, fp)
assert not os.system("cat /dev/null >testfiles/output/file")
tf = tarfile.TarFromIterator(iterate_one_pair(
Path("testfiles/output/file")))
tfbuf = tf.read()
fout = open(filename, "wb")
fout.write(tfbuf)
assert not fout.close()
self.deltmp()
make_bad_tar("testfiles/output/bad.tar")
os.mkdir("testfiles/output/temp")
self.assertRaises(patchdir.PatchDirException, patchdir.Patch,
Path("testfiles/output/temp"),
open("testfiles/output/bad.tar"))
assert not Path("testfiles/output/warning-security-error").exists()
class index:
"""Used below to test the iter collation"""
def __init__(self, index):
self.index = index
class CollateItersTest(unittest.TestCase):
def setUp(self):
assert not os.system("tar xzf testfiles.tar.gz > /dev/null 2>&1")
def tearDown(self):
assert not os.system("rm -rf testfiles tempdir temp2.tar")
def test_collate(self):
"""Test collate_iters function"""
indicies = map(index, [0,1,2,3])
helper = lambda i: indicies[i]
makeiter1 = lambda: iter(indicies)
makeiter2 = lambda: iter(map(helper, [0,1,3]))
makeiter3 = lambda: iter(map(helper, [1,2]))
outiter = patchdir.collate_iters([makeiter1(), makeiter2()])
assert Iter.equal(outiter,
iter([(indicies[0], indicies[0]),
(indicies[1], indicies[1]),
(indicies[2], None),
(indicies[3], indicies[3])]))
assert Iter.equal(patchdir.collate_iters([makeiter1(),
makeiter2(),
makeiter3()]),
iter([(indicies[0], indicies[0], None),
(indicies[1], indicies[1], indicies[1]),
(indicies[2], None, indicies[2]),
(indicies[3], indicies[3], None)]), 1)
assert Iter.equal(patchdir.collate_iters([makeiter1(), iter([])]),
iter(map(lambda i: (i, None), indicies)))
assert Iter.equal(iter(map(lambda i: (i, None), indicies)),
patchdir.collate_iters([makeiter1(), iter([])]))
def test_tuple(self):
"""Test indexed tuple"""
i = patchdir.IndexedTuple((1,2,3), ("a", "b"))
i2 = patchdir.IndexedTuple((), ("hello", "there", "how are you"))
assert i[0] == "a"
assert i[1] == "b"
assert i2[1] == "there"
assert len(i) == 2 and len(i2) == 3
assert i2 < i, i2 < i
def test_tuple_assignment(self):
a, b, c = patchdir.IndexedTuple((), (1, 2, 3))
assert a == 1
assert b == 2
assert c == 3
class TestInnerFuncs(unittest.TestCase):
"""Test some other functions involved in patching"""
def setUp(self):
assert not os.system("tar xzf testfiles.tar.gz > /dev/null 2>&1")
self.check_output()
def tearDown(self):
assert not os.system("rm -rf testfiles tempdir temp2.tar")
def check_output(self):
"""Make sure testfiles/output exists"""
out = Path("testfiles/output")
if not (out.exists() and out.isdir()): out.mkdir()
self.out = out
def snapshot(self):
"""Make a snapshot ROPath, permissions 0600"""
ss = self.out.append("snapshot")
fout = ss.open("wb")
fout.write("hello, world!")
assert not fout.close()
ss.chmod(0600)
ss.difftype = "snapshot"
return ss
def get_delta(self, old_buf, new_buf):
"""Return delta buffer from old to new"""
sigfile = librsync.SigFile(cStringIO.StringIO(old_buf))
sig = sigfile.read()
assert not sigfile.close()
deltafile = librsync.DeltaFile(sig, cStringIO.StringIO(new_buf))
deltabuf = deltafile.read()
assert not deltafile.close()
return deltabuf
def delta1(self):
"""Make a delta ROPath, permissions 0640"""
delta1 = self.out.append("delta1")
fout = delta1.open("wb")
fout.write(self.get_delta("hello, world!",
"aonseuth aosetnuhaonsuhtansoetuhaoe"))
assert not fout.close()
delta1.chmod(0640)
delta1.difftype = "diff"
return delta1
def delta2(self):
"""Make another delta ROPath, permissions 0644"""
delta2 = self.out.append("delta1")
fout = delta2.open("wb")
fout.write(self.get_delta("aonseuth aosetnuhaonsuhtansoetuhaoe",
"3499 34957839485792357 458348573"))
assert not fout.close()
delta2.chmod(0644)
delta2.difftype = "diff"
return delta2
def deleted(self):
"""Make a deleted ROPath"""
deleted = self.out.append("deleted")
assert not deleted.exists()
deleted.difftype = "deleted"
return deleted
def test_normalize(self):
"""Test normalizing a sequence of diffs"""
ss = self.snapshot()
d1 = self.delta1()
d2 = self.delta2()
de = self.deleted()
seq1 = [ss, d1, d2]
seq2 = [ss, d1, d2, de]
seq3 = [de, ss, d1, d2]
seq4 = [de, ss, d1, d2, ss]
seq5 = [de, ss, d1, d2, ss, d1, d2]
def try_seq(input_seq, correct_output_seq):
normed = patchdir.normalize_ps(input_seq)
assert normed == correct_output_seq, (normed, correct_output_seq)
try_seq(seq1, seq1)
try_seq(seq2, [de])
try_seq(seq3, seq1)
try_seq(seq4, [ss])
try_seq(seq5, seq1)
def test_patch_seq2ropath(self):
"""Test patching sequence"""
def testseq(seq, perms, buf):
result = patchdir.patch_seq2ropath(seq)
assert result.getperms() == perms, (result.getperms(), perms)
fout = result.open("rb")
contents = fout.read()
assert not fout.close()
assert contents == buf, (contents, buf)
testseq([self.snapshot()], 0600, "hello, world!")
testseq([self.snapshot(), self.delta1()], 0640,
"aonseuth aosetnuhaonsuhtansoetuhaoe")
testseq([self.snapshot(), self.delta1(), self.delta2()], 0644,
"3499 34957839485792357 458348573")
if __name__ == "__main__":
unittest.main()
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