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3605 lines (3065 loc) · 149 KB
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import _pyio
import array
import contextlib
import importlib.util
import io
import itertools
import os
import posixpath
import stat
import struct
import subprocess
import sys
import time
import unittest
import unittest.mock as mock
import zipfile
from tempfile import TemporaryFile
from random import randint, random, randbytes
from test import archiver_tests
from test.support import script_helper, os_helper
from test.support import (
findfile, requires_zlib, requires_bz2, requires_lzma,
captured_stdout, captured_stderr, requires_subprocess,
)
from test.support.os_helper import (
TESTFN, unlink, rmtree, temp_dir, temp_cwd, fd_count, FakePath
)
TESTFN2 = TESTFN + "2"
TESTFNDIR = TESTFN + "d"
FIXEDTEST_SIZE = 1000
DATAFILES_DIR = 'zipfile_datafiles'
SMALL_TEST_DATA = [('_ziptest1', '1q2w3e4r5t'),
('ziptest2dir/_ziptest2', 'qawsedrftg'),
('ziptest2dir/ziptest3dir/_ziptest3', 'azsxdcfvgb'),
('ziptest2dir/ziptest3dir/ziptest4dir/_ziptest3', '6y7u8i9o0p')]
def get_files(test):
yield TESTFN2
with TemporaryFile() as f:
yield f
test.assertFalse(f.closed)
with io.BytesIO() as f:
yield f
test.assertFalse(f.closed)
class AbstractTestsWithSourceFile:
@classmethod
def setUpClass(cls):
cls.line_gen = [bytes("Zipfile test line %d. random float: %f\n" %
(i, random()), "ascii")
for i in range(FIXEDTEST_SIZE)]
cls.data = b''.join(cls.line_gen)
def setUp(self):
# Make a source file with some lines
with open(TESTFN, "wb") as fp:
fp.write(self.data)
def make_test_archive(self, f, compression, compresslevel=None):
kwargs = {'compression': compression, 'compresslevel': compresslevel}
# Create the ZIP archive
with zipfile.ZipFile(f, "w", **kwargs) as zipfp:
zipfp.write(TESTFN, "another.name")
zipfp.write(TESTFN, TESTFN)
zipfp.writestr("strfile", self.data)
with zipfp.open('written-open-w', mode='w') as f:
for line in self.line_gen:
f.write(line)
def zip_test(self, f, compression, compresslevel=None):
self.make_test_archive(f, compression, compresslevel)
# Read the ZIP archive
with zipfile.ZipFile(f, "r", compression) as zipfp:
self.assertEqual(zipfp.read(TESTFN), self.data)
self.assertEqual(zipfp.read("another.name"), self.data)
self.assertEqual(zipfp.read("strfile"), self.data)
# Print the ZIP directory
fp = io.StringIO()
zipfp.printdir(file=fp)
directory = fp.getvalue()
lines = directory.splitlines()
self.assertEqual(len(lines), 5) # Number of files + header
self.assertIn('File Name', lines[0])
self.assertIn('Modified', lines[0])
self.assertIn('Size', lines[0])
fn, date, time_, size = lines[1].split()
self.assertEqual(fn, 'another.name')
self.assertTrue(time.strptime(date, '%Y-%m-%d'))
self.assertTrue(time.strptime(time_, '%H:%M:%S'))
self.assertEqual(size, str(len(self.data)))
# Check the namelist
names = zipfp.namelist()
self.assertEqual(len(names), 4)
self.assertIn(TESTFN, names)
self.assertIn("another.name", names)
self.assertIn("strfile", names)
self.assertIn("written-open-w", names)
# Check infolist
infos = zipfp.infolist()
names = [i.filename for i in infos]
self.assertEqual(len(names), 4)
self.assertIn(TESTFN, names)
self.assertIn("another.name", names)
self.assertIn("strfile", names)
self.assertIn("written-open-w", names)
for i in infos:
self.assertEqual(i.file_size, len(self.data))
# check getinfo
for nm in (TESTFN, "another.name", "strfile", "written-open-w"):
info = zipfp.getinfo(nm)
self.assertEqual(info.filename, nm)
self.assertEqual(info.file_size, len(self.data))
# Check that testzip thinks the archive is ok
# (it returns None if all contents could be read properly)
self.assertIsNone(zipfp.testzip())
def test_basic(self):
for f in get_files(self):
self.zip_test(f, self.compression)
def zip_open_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r", compression) as zipfp:
zipdata1 = []
with zipfp.open(TESTFN) as zipopen1:
while True:
read_data = zipopen1.read(256)
if not read_data:
break
zipdata1.append(read_data)
zipdata2 = []
with zipfp.open("another.name") as zipopen2:
while True:
read_data = zipopen2.read(256)
if not read_data:
break
zipdata2.append(read_data)
self.assertEqual(b''.join(zipdata1), self.data)
self.assertEqual(b''.join(zipdata2), self.data)
def test_open(self):
for f in get_files(self):
self.zip_open_test(f, self.compression)
def test_open_with_pathlike(self):
path = FakePath(TESTFN2)
self.zip_open_test(path, self.compression)
with zipfile.ZipFile(path, "r", self.compression) as zipfp:
self.assertIsInstance(zipfp.filename, str)
def zip_random_open_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r", compression) as zipfp:
zipdata1 = []
with zipfp.open(TESTFN) as zipopen1:
while True:
read_data = zipopen1.read(randint(1, 1024))
if not read_data:
break
zipdata1.append(read_data)
self.assertEqual(b''.join(zipdata1), self.data)
def test_random_open(self):
for f in get_files(self):
self.zip_random_open_test(f, self.compression)
def zip_read1_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp, \
zipfp.open(TESTFN) as zipopen:
zipdata = []
while True:
read_data = zipopen.read1(-1)
if not read_data:
break
zipdata.append(read_data)
self.assertEqual(b''.join(zipdata), self.data)
def test_read1(self):
for f in get_files(self):
self.zip_read1_test(f, self.compression)
def zip_read1_10_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp, \
zipfp.open(TESTFN) as zipopen:
zipdata = []
while True:
read_data = zipopen.read1(10)
self.assertLessEqual(len(read_data), 10)
if not read_data:
break
zipdata.append(read_data)
self.assertEqual(b''.join(zipdata), self.data)
def test_read1_10(self):
for f in get_files(self):
self.zip_read1_10_test(f, self.compression)
def zip_readline_read_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp, \
zipfp.open(TESTFN) as zipopen:
data = b''
while True:
read = zipopen.readline()
if not read:
break
data += read
read = zipopen.read(100)
if not read:
break
data += read
self.assertEqual(data, self.data)
def test_readline_read(self):
# Issue #7610: calls to readline() interleaved with calls to read().
for f in get_files(self):
self.zip_readline_read_test(f, self.compression)
def zip_readline_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp:
with zipfp.open(TESTFN) as zipopen:
for line in self.line_gen:
linedata = zipopen.readline()
self.assertEqual(linedata, line)
def test_readline(self):
for f in get_files(self):
self.zip_readline_test(f, self.compression)
def zip_readlines_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp:
with zipfp.open(TESTFN) as zipopen:
ziplines = zipopen.readlines()
for line, zipline in zip(self.line_gen, ziplines):
self.assertEqual(zipline, line)
def test_readlines(self):
for f in get_files(self):
self.zip_readlines_test(f, self.compression)
def zip_iterlines_test(self, f, compression):
self.make_test_archive(f, compression)
# Read the ZIP archive
with zipfile.ZipFile(f, "r") as zipfp:
with zipfp.open(TESTFN) as zipopen:
for line, zipline in zip(self.line_gen, zipopen):
self.assertEqual(zipline, line)
def test_iterlines(self):
for f in get_files(self):
self.zip_iterlines_test(f, self.compression)
def test_low_compression(self):
"""Check for cases where compressed data is larger than original."""
# Create the ZIP archive
with zipfile.ZipFile(TESTFN2, "w", self.compression) as zipfp:
zipfp.writestr("strfile", '12')
# Get an open object for strfile
with zipfile.ZipFile(TESTFN2, "r", self.compression) as zipfp:
with zipfp.open("strfile") as openobj:
self.assertEqual(openobj.read(1), b'1')
self.assertEqual(openobj.read(1), b'2')
def test_writestr_compression(self):
zipfp = zipfile.ZipFile(TESTFN2, "w")
zipfp.writestr("b.txt", "hello world", compress_type=self.compression)
info = zipfp.getinfo('b.txt')
self.assertEqual(info.compress_type, self.compression)
def test_writestr_compresslevel(self):
zipfp = zipfile.ZipFile(TESTFN2, "w", compresslevel=1)
zipfp.writestr("a.txt", "hello world", compress_type=self.compression)
zipfp.writestr("b.txt", "hello world", compress_type=self.compression,
compresslevel=2)
# Compression level follows the constructor.
a_info = zipfp.getinfo('a.txt')
self.assertEqual(a_info.compress_type, self.compression)
self.assertEqual(a_info.compress_level, 1)
# Compression level is overridden.
b_info = zipfp.getinfo('b.txt')
self.assertEqual(b_info.compress_type, self.compression)
self.assertEqual(b_info._compresslevel, 2)
def test_read_return_size(self):
# Issue #9837: ZipExtFile.read() shouldn't return more bytes
# than requested.
for test_size in (1, 4095, 4096, 4097, 16384):
file_size = test_size + 1
junk = randbytes(file_size)
with zipfile.ZipFile(io.BytesIO(), "w", self.compression) as zipf:
zipf.writestr('foo', junk)
with zipf.open('foo', 'r') as fp:
buf = fp.read(test_size)
self.assertEqual(len(buf), test_size)
def test_truncated_zipfile(self):
fp = io.BytesIO()
with zipfile.ZipFile(fp, mode='w') as zipf:
zipf.writestr('strfile', self.data, compress_type=self.compression)
end_offset = fp.tell()
zipfiledata = fp.getvalue()
fp = io.BytesIO(zipfiledata)
with zipfile.ZipFile(fp) as zipf:
with zipf.open('strfile') as zipopen:
fp.truncate(end_offset - 20)
with self.assertRaises(EOFError):
zipopen.read()
fp = io.BytesIO(zipfiledata)
with zipfile.ZipFile(fp) as zipf:
with zipf.open('strfile') as zipopen:
fp.truncate(end_offset - 20)
with self.assertRaises(EOFError):
while zipopen.read(100):
pass
fp = io.BytesIO(zipfiledata)
with zipfile.ZipFile(fp) as zipf:
with zipf.open('strfile') as zipopen:
fp.truncate(end_offset - 20)
with self.assertRaises(EOFError):
while zipopen.read1(100):
pass
def test_repr(self):
fname = 'file.name'
for f in get_files(self):
with zipfile.ZipFile(f, 'w', self.compression) as zipfp:
zipfp.write(TESTFN, fname)
r = repr(zipfp)
self.assertIn("mode='w'", r)
with zipfile.ZipFile(f, 'r') as zipfp:
r = repr(zipfp)
if isinstance(f, str):
self.assertIn('filename=%r' % f, r)
else:
self.assertIn('file=%r' % f, r)
self.assertIn("mode='r'", r)
r = repr(zipfp.getinfo(fname))
self.assertIn('filename=%r' % fname, r)
self.assertIn('filemode=', r)
self.assertIn('file_size=', r)
if self.compression != zipfile.ZIP_STORED:
self.assertIn('compress_type=', r)
self.assertIn('compress_size=', r)
with zipfp.open(fname) as zipopen:
r = repr(zipopen)
self.assertIn('name=%r' % fname, r)
if self.compression != zipfile.ZIP_STORED:
self.assertIn('compress_type=', r)
self.assertIn('[closed]', repr(zipopen))
self.assertIn('[closed]', repr(zipfp))
def test_compresslevel_basic(self):
for f in get_files(self):
self.zip_test(f, self.compression, compresslevel=9)
def test_per_file_compresslevel(self):
"""Check that files within a Zip archive can have different
compression levels."""
with zipfile.ZipFile(TESTFN2, "w", compresslevel=1) as zipfp:
zipfp.write(TESTFN, 'compress_1')
zipfp.write(TESTFN, 'compress_9', compresslevel=9)
one_info = zipfp.getinfo('compress_1')
nine_info = zipfp.getinfo('compress_9')
self.assertEqual(one_info._compresslevel, 1)
self.assertEqual(nine_info.compress_level, 9)
def test_writing_errors(self):
class BrokenFile(io.BytesIO):
def write(self, data):
nonlocal count
if count is not None:
if count == stop:
raise OSError
count += 1
super().write(data)
stop = 0
while True:
testfile = BrokenFile()
count = None
with zipfile.ZipFile(testfile, 'w', self.compression) as zipfp:
with zipfp.open('file1', 'w') as f:
f.write(b'data1')
count = 0
try:
with zipfp.open('file2', 'w') as f:
f.write(b'data2')
except OSError:
stop += 1
else:
break
finally:
count = None
with zipfile.ZipFile(io.BytesIO(testfile.getvalue())) as zipfp:
self.assertEqual(zipfp.namelist(), ['file1'])
self.assertEqual(zipfp.read('file1'), b'data1')
with zipfile.ZipFile(io.BytesIO(testfile.getvalue())) as zipfp:
self.assertEqual(zipfp.namelist(), ['file1', 'file2'])
self.assertEqual(zipfp.read('file1'), b'data1')
self.assertEqual(zipfp.read('file2'), b'data2')
def test_zipextfile_attrs(self):
fname = "somefile.txt"
with zipfile.ZipFile(TESTFN2, mode="w") as zipfp:
zipfp.writestr(fname, "bogus")
with zipfile.ZipFile(TESTFN2, mode="r") as zipfp:
with zipfp.open(fname) as fid:
self.assertEqual(fid.name, fname)
self.assertRaises(io.UnsupportedOperation, fid.fileno)
self.assertEqual(fid.mode, 'rb')
self.assertIs(fid.readable(), True)
self.assertIs(fid.writable(), False)
self.assertIs(fid.seekable(), True)
self.assertIs(fid.closed, False)
self.assertIs(fid.closed, True)
self.assertEqual(fid.name, fname)
self.assertEqual(fid.mode, 'rb')
self.assertRaises(io.UnsupportedOperation, fid.fileno)
self.assertRaises(ValueError, fid.readable)
self.assertIs(fid.writable(), False)
self.assertRaises(ValueError, fid.seekable)
def tearDown(self):
unlink(TESTFN)
unlink(TESTFN2)
class StoredTestsWithSourceFile(AbstractTestsWithSourceFile,
unittest.TestCase):
compression = zipfile.ZIP_STORED
test_low_compression = None
def zip_test_writestr_permissions(self, f, compression):
# Make sure that writestr and open(... mode='w') create files with
# mode 0600, when they are passed a name rather than a ZipInfo
# instance.
self.make_test_archive(f, compression)
with zipfile.ZipFile(f, "r") as zipfp:
zinfo = zipfp.getinfo('strfile')
self.assertEqual(zinfo.external_attr, 0o600 << 16)
zinfo2 = zipfp.getinfo('written-open-w')
self.assertEqual(zinfo2.external_attr, 0o600 << 16)
def test_writestr_permissions(self):
for f in get_files(self):
self.zip_test_writestr_permissions(f, zipfile.ZIP_STORED)
def test_absolute_arcnames(self):
with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, "/absolute")
with zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_STORED) as zipfp:
self.assertEqual(zipfp.namelist(), ["absolute"])
def test_append_to_zip_file(self):
"""Test appending to an existing zipfile."""
with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, TESTFN)
with zipfile.ZipFile(TESTFN2, "a", zipfile.ZIP_STORED) as zipfp:
zipfp.writestr("strfile", self.data)
self.assertEqual(zipfp.namelist(), [TESTFN, "strfile"])
def test_append_to_non_zip_file(self):
"""Test appending to an existing file that is not a zipfile."""
# NOTE: this test fails if len(d) < 22 because of the first
# line "fpin.seek(-22, 2)" in _EndRecData
data = b'I am not a ZipFile!'*10
with open(TESTFN2, 'wb') as f:
f.write(data)
with zipfile.ZipFile(TESTFN2, "a", zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, TESTFN)
with open(TESTFN2, 'rb') as f:
f.seek(len(data))
with zipfile.ZipFile(f, "r") as zipfp:
self.assertEqual(zipfp.namelist(), [TESTFN])
self.assertEqual(zipfp.read(TESTFN), self.data)
with open(TESTFN2, 'rb') as f:
self.assertEqual(f.read(len(data)), data)
zipfiledata = f.read()
with io.BytesIO(zipfiledata) as bio, zipfile.ZipFile(bio) as zipfp:
self.assertEqual(zipfp.namelist(), [TESTFN])
self.assertEqual(zipfp.read(TESTFN), self.data)
def test_read_concatenated_zip_file(self):
with io.BytesIO() as bio:
with zipfile.ZipFile(bio, 'w', zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, TESTFN)
zipfiledata = bio.getvalue()
data = b'I am not a ZipFile!'*10
with open(TESTFN2, 'wb') as f:
f.write(data)
f.write(zipfiledata)
with zipfile.ZipFile(TESTFN2) as zipfp:
self.assertEqual(zipfp.namelist(), [TESTFN])
self.assertEqual(zipfp.read(TESTFN), self.data)
def test_append_to_concatenated_zip_file(self):
with io.BytesIO() as bio:
with zipfile.ZipFile(bio, 'w', zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, TESTFN)
zipfiledata = bio.getvalue()
data = b'I am not a ZipFile!'*1000000
with open(TESTFN2, 'wb') as f:
f.write(data)
f.write(zipfiledata)
with zipfile.ZipFile(TESTFN2, 'a') as zipfp:
self.assertEqual(zipfp.namelist(), [TESTFN])
zipfp.writestr('strfile', self.data)
with open(TESTFN2, 'rb') as f:
self.assertEqual(f.read(len(data)), data)
zipfiledata = f.read()
with io.BytesIO(zipfiledata) as bio, zipfile.ZipFile(bio) as zipfp:
self.assertEqual(zipfp.namelist(), [TESTFN, 'strfile'])
self.assertEqual(zipfp.read(TESTFN), self.data)
self.assertEqual(zipfp.read('strfile'), self.data)
def test_ignores_newline_at_end(self):
with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED) as zipfp:
zipfp.write(TESTFN, TESTFN)
with open(TESTFN2, 'a', encoding='utf-8') as f:
f.write("\r\n\00\00\00")
with zipfile.ZipFile(TESTFN2, "r") as zipfp:
self.assertIsInstance(zipfp, zipfile.ZipFile)
def test_ignores_stuff_appended_past_comments(self):
with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED) as zipfp:
zipfp.comment = b"this is a comment"
zipfp.write(TESTFN, TESTFN)
with open(TESTFN2, 'a', encoding='utf-8') as f:
f.write("abcdef\r\n")
with zipfile.ZipFile(TESTFN2, "r") as zipfp:
self.assertIsInstance(zipfp, zipfile.ZipFile)
self.assertEqual(zipfp.comment, b"this is a comment")
def test_write_default_name(self):
"""Check that calling ZipFile.write without arcname specified
produces the expected result."""
with zipfile.ZipFile(TESTFN2, "w") as zipfp:
zipfp.write(TESTFN)
with open(TESTFN, "rb") as f:
self.assertEqual(zipfp.read(TESTFN), f.read())
def test_io_on_closed_zipextfile(self):
fname = "somefile.txt"
with zipfile.ZipFile(TESTFN2, mode="w", compression=self.compression) as zipfp:
zipfp.writestr(fname, "bogus")
with zipfile.ZipFile(TESTFN2, mode="r") as zipfp:
with zipfp.open(fname) as fid:
fid.close()
self.assertIs(fid.closed, True)
self.assertRaises(ValueError, fid.read)
self.assertRaises(ValueError, fid.seek, 0)
self.assertRaises(ValueError, fid.tell)
def test_write_to_readonly(self):
"""Check that trying to call write() on a readonly ZipFile object
raises a ValueError."""
with zipfile.ZipFile(TESTFN2, mode="w") as zipfp:
zipfp.writestr("somefile.txt", "bogus")
with zipfile.ZipFile(TESTFN2, mode="r") as zipfp:
self.assertRaises(ValueError, zipfp.write, TESTFN)
with zipfile.ZipFile(TESTFN2, mode="r") as zipfp:
with self.assertRaises(ValueError):
zipfp.open(TESTFN, mode='w')
def test_add_file_before_1980(self):
# Set atime and mtime to 1970-01-01
os.utime(TESTFN, (0, 0))
with zipfile.ZipFile(TESTFN2, "w") as zipfp:
self.assertRaises(ValueError, zipfp.write, TESTFN)
with zipfile.ZipFile(TESTFN2, "w", strict_timestamps=False) as zipfp:
zipfp.write(TESTFN)
zinfo = zipfp.getinfo(TESTFN)
self.assertEqual(zinfo.date_time, (1980, 1, 1, 0, 0, 0))
def test_add_file_after_2107(self):
# Set atime and mtime to 2108-12-30
ts = 4386268800
try:
time.localtime(ts)
except OverflowError:
self.skipTest(f'time.localtime({ts}) raises OverflowError')
try:
os.utime(TESTFN, (ts, ts))
except OverflowError:
self.skipTest('Host fs cannot set timestamp to required value.')
mtime_ns = os.stat(TESTFN).st_mtime_ns
if mtime_ns != (4386268800 * 10**9):
# XFS filesystem is limited to 32-bit timestamp, but the syscall
# didn't fail. Moreover, there is a VFS bug which returns
# a cached timestamp which is different than the value on disk.
#
# Test st_mtime_ns rather than st_mtime to avoid rounding issues.
#
# https://bugzilla.redhat.com/show_bug.cgi?id=1795576
# https://bugs.python.org/issue39460#msg360952
self.skipTest(f"Linux VFS/XFS kernel bug detected: {mtime_ns=}")
with zipfile.ZipFile(TESTFN2, "w") as zipfp:
self.assertRaises(struct.error, zipfp.write, TESTFN)
with zipfile.ZipFile(TESTFN2, "w", strict_timestamps=False) as zipfp:
zipfp.write(TESTFN)
zinfo = zipfp.getinfo(TESTFN)
self.assertEqual(zinfo.date_time, (2107, 12, 31, 23, 59, 59))
@requires_zlib()
class DeflateTestsWithSourceFile(AbstractTestsWithSourceFile,
unittest.TestCase):
compression = zipfile.ZIP_DEFLATED
def test_per_file_compression(self):
"""Check that files within a Zip archive can have different
compression options."""
with zipfile.ZipFile(TESTFN2, "w") as zipfp:
zipfp.write(TESTFN, 'storeme', zipfile.ZIP_STORED)
zipfp.write(TESTFN, 'deflateme', zipfile.ZIP_DEFLATED)
sinfo = zipfp.getinfo('storeme')
dinfo = zipfp.getinfo('deflateme')
self.assertEqual(sinfo.compress_type, zipfile.ZIP_STORED)
self.assertEqual(dinfo.compress_type, zipfile.ZIP_DEFLATED)
@requires_bz2()
class Bzip2TestsWithSourceFile(AbstractTestsWithSourceFile,
unittest.TestCase):
compression = zipfile.ZIP_BZIP2
@requires_lzma()
class LzmaTestsWithSourceFile(AbstractTestsWithSourceFile,
unittest.TestCase):
compression = zipfile.ZIP_LZMA
class AbstractTestZip64InSmallFiles:
# These tests test the ZIP64 functionality without using large files,
# see test_zipfile64 for proper tests.
@classmethod
def setUpClass(cls):
line_gen = (bytes("Test of zipfile line %d." % i, "ascii")
for i in range(0, FIXEDTEST_SIZE))
cls.data = b'\n'.join(line_gen)
def setUp(self):
self._limit = zipfile.ZIP64_LIMIT
self._filecount_limit = zipfile.ZIP_FILECOUNT_LIMIT
zipfile.ZIP64_LIMIT = 1000
zipfile.ZIP_FILECOUNT_LIMIT = 9
# Make a source file with some lines
with open(TESTFN, "wb") as fp:
fp.write(self.data)
def zip_test(self, f, compression):
# Create the ZIP archive
with zipfile.ZipFile(f, "w", compression, allowZip64=True) as zipfp:
zipfp.write(TESTFN, "another.name")
zipfp.write(TESTFN, TESTFN)
zipfp.writestr("strfile", self.data)
# Read the ZIP archive
with zipfile.ZipFile(f, "r", compression) as zipfp:
self.assertEqual(zipfp.read(TESTFN), self.data)
self.assertEqual(zipfp.read("another.name"), self.data)
self.assertEqual(zipfp.read("strfile"), self.data)
# Print the ZIP directory
fp = io.StringIO()
zipfp.printdir(fp)
directory = fp.getvalue()
lines = directory.splitlines()
self.assertEqual(len(lines), 4) # Number of files + header
self.assertIn('File Name', lines[0])
self.assertIn('Modified', lines[0])
self.assertIn('Size', lines[0])
fn, date, time_, size = lines[1].split()
self.assertEqual(fn, 'another.name')
self.assertTrue(time.strptime(date, '%Y-%m-%d'))
self.assertTrue(time.strptime(time_, '%H:%M:%S'))
self.assertEqual(size, str(len(self.data)))
# Check the namelist
names = zipfp.namelist()
self.assertEqual(len(names), 3)
self.assertIn(TESTFN, names)
self.assertIn("another.name", names)
self.assertIn("strfile", names)
# Check infolist
infos = zipfp.infolist()
names = [i.filename for i in infos]
self.assertEqual(len(names), 3)
self.assertIn(TESTFN, names)
self.assertIn("another.name", names)
self.assertIn("strfile", names)
for i in infos:
self.assertEqual(i.file_size, len(self.data))
# check getinfo
for nm in (TESTFN, "another.name", "strfile"):
info = zipfp.getinfo(nm)
self.assertEqual(info.filename, nm)
self.assertEqual(info.file_size, len(self.data))
# Check that testzip thinks the archive is valid
self.assertIsNone(zipfp.testzip())
def test_basic(self):
for f in get_files(self):
self.zip_test(f, self.compression)
def test_too_many_files(self):
# This test checks that more than 64k files can be added to an archive,
# and that the resulting archive can be read properly by ZipFile
zipf = zipfile.ZipFile(TESTFN, "w", self.compression,
allowZip64=True)
zipf.debug = 100
numfiles = 15
for i in range(numfiles):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf2 = zipfile.ZipFile(TESTFN, "r", self.compression)
self.assertEqual(len(zipf2.namelist()), numfiles)
for i in range(numfiles):
content = zipf2.read("foo%08d" % i).decode('ascii')
self.assertEqual(content, "%d" % (i**3 % 57))
zipf2.close()
def test_too_many_files_append(self):
zipf = zipfile.ZipFile(TESTFN, "w", self.compression,
allowZip64=False)
zipf.debug = 100
numfiles = 9
for i in range(numfiles):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles)
with self.assertRaises(zipfile.LargeZipFile):
zipf.writestr("foo%08d" % numfiles, b'')
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf = zipfile.ZipFile(TESTFN, "a", self.compression,
allowZip64=False)
zipf.debug = 100
self.assertEqual(len(zipf.namelist()), numfiles)
with self.assertRaises(zipfile.LargeZipFile):
zipf.writestr("foo%08d" % numfiles, b'')
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf = zipfile.ZipFile(TESTFN, "a", self.compression,
allowZip64=True)
zipf.debug = 100
self.assertEqual(len(zipf.namelist()), numfiles)
numfiles2 = 15
for i in range(numfiles, numfiles2):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles2)
zipf.close()
zipf2 = zipfile.ZipFile(TESTFN, "r", self.compression)
self.assertEqual(len(zipf2.namelist()), numfiles2)
for i in range(numfiles2):
content = zipf2.read("foo%08d" % i).decode('ascii')
self.assertEqual(content, "%d" % (i**3 % 57))
zipf2.close()
def tearDown(self):
zipfile.ZIP64_LIMIT = self._limit
zipfile.ZIP_FILECOUNT_LIMIT = self._filecount_limit
unlink(TESTFN)
unlink(TESTFN2)
class StoredTestZip64InSmallFiles(AbstractTestZip64InSmallFiles,
unittest.TestCase):
compression = zipfile.ZIP_STORED
def large_file_exception_test(self, f, compression):
with zipfile.ZipFile(f, "w", compression, allowZip64=False) as zipfp:
self.assertRaises(zipfile.LargeZipFile,
zipfp.write, TESTFN, "another.name")
def large_file_exception_test2(self, f, compression):
with zipfile.ZipFile(f, "w", compression, allowZip64=False) as zipfp:
self.assertRaises(zipfile.LargeZipFile,
zipfp.writestr, "another.name", self.data)
def test_large_file_exception(self):
for f in get_files(self):
self.large_file_exception_test(f, zipfile.ZIP_STORED)
self.large_file_exception_test2(f, zipfile.ZIP_STORED)
def test_absolute_arcnames(self):
with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED,
allowZip64=True) as zipfp:
zipfp.write(TESTFN, "/absolute")
with zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_STORED) as zipfp:
self.assertEqual(zipfp.namelist(), ["absolute"])
def test_append(self):
# Test that appending to the Zip64 archive doesn't change
# extra fields of existing entries.
with zipfile.ZipFile(TESTFN2, "w", allowZip64=True) as zipfp:
zipfp.writestr("strfile", self.data)
with zipfile.ZipFile(TESTFN2, "r", allowZip64=True) as zipfp:
zinfo = zipfp.getinfo("strfile")
extra = zinfo.extra
with zipfile.ZipFile(TESTFN2, "a", allowZip64=True) as zipfp:
zipfp.writestr("strfile2", self.data)
with zipfile.ZipFile(TESTFN2, "r", allowZip64=True) as zipfp:
zinfo = zipfp.getinfo("strfile")
self.assertEqual(zinfo.extra, extra)
def make_zip64_file(
self, file_size_64_set=False, file_size_extra=False,
compress_size_64_set=False, compress_size_extra=False,
header_offset_64_set=False, header_offset_extra=False,
):
"""Generate bytes sequence for a zip with (incomplete) zip64 data.
The actual values (not the zip 64 0xffffffff values) stored in the file
are:
file_size: 8
compress_size: 8
header_offset: 0
"""
actual_size = 8
actual_header_offset = 0
local_zip64_fields = []
central_zip64_fields = []
file_size = actual_size
if file_size_64_set:
file_size = 0xffffffff
if file_size_extra:
local_zip64_fields.append(actual_size)
central_zip64_fields.append(actual_size)
file_size = struct.pack("<L", file_size)
compress_size = actual_size
if compress_size_64_set:
compress_size = 0xffffffff
if compress_size_extra:
local_zip64_fields.append(actual_size)
central_zip64_fields.append(actual_size)
compress_size = struct.pack("<L", compress_size)
header_offset = actual_header_offset
if header_offset_64_set:
header_offset = 0xffffffff
if header_offset_extra:
central_zip64_fields.append(actual_header_offset)
header_offset = struct.pack("<L", header_offset)
local_extra = struct.pack(
'<HH' + 'Q'*len(local_zip64_fields),
0x0001,
8*len(local_zip64_fields),
*local_zip64_fields
)
central_extra = struct.pack(
'<HH' + 'Q'*len(central_zip64_fields),
0x0001,
8*len(central_zip64_fields),
*central_zip64_fields
)
central_dir_size = struct.pack('<Q', 58 + 8 * len(central_zip64_fields))
offset_to_central_dir = struct.pack('<Q', 50 + 8 * len(local_zip64_fields))
local_extra_length = struct.pack("<H", 4 + 8 * len(local_zip64_fields))
central_extra_length = struct.pack("<H", 4 + 8 * len(central_zip64_fields))
filename = b"test.txt"
content = b"test1234"
filename_length = struct.pack("<H", len(filename))
zip64_contents = (
# Local file header
b"PK\x03\x04\x14\x00\x00\x00\x00\x00\x00\x00!\x00\x9e%\xf5\xaf"
+ compress_size
+ file_size
+ filename_length
+ local_extra_length
+ filename
+ local_extra
+ content
# Central directory:
+ b"PK\x01\x02-\x03-\x00\x00\x00\x00\x00\x00\x00!\x00\x9e%\xf5\xaf"
+ compress_size
+ file_size
+ filename_length
+ central_extra_length
+ b"\x00\x00\x00\x00\x00\x00\x00\x00\x80\x01"
+ header_offset
+ filename
+ central_extra
# Zip64 end of central directory
+ b"PK\x06\x06,\x00\x00\x00\x00\x00\x00\x00-\x00-"
+ b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00"
+ b"\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00"
+ central_dir_size
+ offset_to_central_dir
# Zip64 end of central directory locator
+ b"PK\x06\x07\x00\x00\x00\x00l\x00\x00\x00\x00\x00\x00\x00\x01"
+ b"\x00\x00\x00"
# end of central directory
+ b"PK\x05\x06\x00\x00\x00\x00\x01\x00\x01\x00:\x00\x00\x002\x00"
+ b"\x00\x00\x00\x00"
)
return zip64_contents
def test_bad_zip64_extra(self):
"""Missing zip64 extra records raises an exception.
There are 4 fields that the zip64 format handles (the disk number is
not used in this module and so is ignored here). According to the zip
spec:
The order of the fields in the zip64 extended
information record is fixed, but the fields MUST
only appear if the corresponding Local or Central
directory record field is set to 0xFFFF or 0xFFFFFFFF.
If the zip64 extra content doesn't contain enough entries for the
number of fields marked with 0xFFFF or 0xFFFFFFFF, we raise an error.
This test mismatches the length of the zip64 extra field and the number
of fields set to indicate the presence of zip64 data.
"""
# zip64 file size present, no fields in extra, expecting one, equals
# missing file size.