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cpython/Lib/test/test_zipfile.py

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# We can test part of the module without zlib.
try:
import zlib
except ImportError:
zlib = None
import zipfile, os, unittest, sys, shutil, struct, io
from tempfile import TemporaryFile
from random import randint, random
import test.support as support
from test.support import TESTFN, run_unittest, findfile
TESTFN2 = TESTFN + "2"
TESTFNDIR = TESTFN + "d"
FIXEDTEST_SIZE = 1000
SMALL_TEST_DATA = [('_ziptest1', '1q2w3e4r5t'),
('ziptest2dir/_ziptest2', 'qawsedrftg'),
('/ziptest2dir/ziptest3dir/_ziptest3', 'azsxdcfvgb'),
('ziptest2dir/ziptest3dir/ziptest4dir/_ziptest3', '6y7u8i9o0p')]
class TestsWithSourceFile(unittest.TestCase):
def setUp(self):
self.line_gen = (bytes("Zipfile test line %d. random float: %f" %
(i, random()), "ascii")
for i in range(FIXEDTEST_SIZE))
self.data = b'\n'.join(self.line_gen) + b'\n'
# Make a source file with some lines
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
def makeTestArchive(self, f, compression):
# Create the ZIP archive
zipfp = zipfile.ZipFile(f, "w", compression)
zipfp.write(TESTFN, "another.name")
zipfp.write(TESTFN, TESTFN)
zipfp.writestr("strfile", self.data)
zipfp.close()
def zipTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
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), 4) # Number of files + header
self.assertTrue('File Name' in lines[0])
self.assertTrue('Modified' in lines[0])
self.assertTrue('Size' in lines[0])
fn, date, time, size = lines[1].split()
self.assertEqual(fn, 'another.name')
# XXX: timestamp is not tested
self.assertEqual(size, str(len(self.data)))
# Check the namelist
names = zipfp.namelist()
self.assertEqual(len(names), 3)
self.assertTrue(TESTFN in names)
self.assertTrue("another.name" in names)
self.assertTrue("strfile" in names)
# Check infolist
infos = zipfp.infolist()
names = [ i.filename for i in infos ]
self.assertEqual(len(names), 3)
self.assertTrue(TESTFN in names)
self.assertTrue("another.name" in names)
self.assertTrue("strfile" in 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 doesn't raise an exception
zipfp.testzip()
zipfp.close()
def testStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipTest(f, zipfile.ZIP_STORED)
def zipOpenTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
zipdata1 = []
zipopen1 = zipfp.open(TESTFN)
while 1:
read_data = zipopen1.read(256)
if not read_data:
break
zipdata1.append(read_data)
zipdata2 = []
zipopen2 = zipfp.open("another.name")
while 1:
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)
zipfp.close()
def testOpenStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipOpenTest(f, zipfile.ZIP_STORED)
def testOpenViaZipInfo(self):
# Create the ZIP archive
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED)
zipfp.writestr("name", "foo")
zipfp.writestr("name", "bar")
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "r")
infos = zipfp.infolist()
data = b""
for info in infos:
data += zipfp.open(info).read()
self.assertTrue(data == b"foobar" or data == b"barfoo")
data = b""
for info in infos:
data += zipfp.read(info)
self.assertTrue(data == b"foobar" or data == b"barfoo")
zipfp.close()
def zipRandomOpenTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
zipdata1 = []
zipopen1 = zipfp.open(TESTFN)
while 1:
read_data = zipopen1.read(randint(1, 1024))
if not read_data:
break
zipdata1.append(read_data)
self.assertEqual(b''.join(zipdata1), self.data)
zipfp.close()
def testRandomOpenStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipRandomOpenTest(f, zipfile.ZIP_STORED)
def zipReadlineTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
zipopen = zipfp.open(TESTFN)
for line in self.line_gen:
linedata = zipopen.readline()
self.assertEqual(linedata, line + '\n')
zipfp.close()
def zipReadlinesTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
ziplines = zipfp.open(TESTFN).readlines()
for line, zipline in zip(self.line_gen, ziplines):
self.assertEqual(zipline, line + '\n')
zipfp.close()
def zipIterlinesTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
for line, zipline in zip(self.line_gen, zipfp.open(TESTFN)):
self.assertEqual(zipline, line + '\n')
zipfp.close()
def testReadlineStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipReadlineTest(f, zipfile.ZIP_STORED)
def testReadlinesStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipReadlinesTest(f, zipfile.ZIP_STORED)
def testIterlinesStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipIterlinesTest(f, zipfile.ZIP_STORED)
if zlib:
def testDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipTest(f, zipfile.ZIP_DEFLATED)
def testOpenDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipOpenTest(f, zipfile.ZIP_DEFLATED)
def testRandomOpenDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipRandomOpenTest(f, zipfile.ZIP_DEFLATED)
def testReadlineDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipReadlineTest(f, zipfile.ZIP_DEFLATED)
def testReadlinesDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipReadlinesTest(f, zipfile.ZIP_DEFLATED)
def testIterlinesDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipIterlinesTest(f, zipfile.ZIP_DEFLATED)
def testLowCompression(self):
# Checks for cases where compressed data is larger than original
# Create the ZIP archive
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_DEFLATED)
zipfp.writestr("strfile", '12')
zipfp.close()
# Get an open object for strfile
zipfp = zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_DEFLATED)
openobj = zipfp.open("strfile")
self.assertEqual(openobj.read(1), b'1')
self.assertEqual(openobj.read(1), b'2')
def testAbsoluteArcnames(self):
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED)
zipfp.write(TESTFN, "/absolute")
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_STORED)
self.assertEqual(zipfp.namelist(), ["absolute"])
zipfp.close()
def testAppendToZipFile(self):
# Test appending to an existing zipfile
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED)
zipfp.write(TESTFN, TESTFN)
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "a", zipfile.ZIP_STORED)
zipfp.writestr("strfile", self.data)
self.assertEqual(zipfp.namelist(), [TESTFN, "strfile"])
zipfp.close()
def testAppendToNonZipFile(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
d = b'I am not a ZipFile!'*10
f = open(TESTFN2, 'wb')
f.write(d)
f.close()
zipfp = zipfile.ZipFile(TESTFN2, "a", zipfile.ZIP_STORED)
zipfp.write(TESTFN, TESTFN)
zipfp.close()
f = open(TESTFN2, 'rb')
f.seek(len(d))
zipfp = zipfile.ZipFile(f, "r")
self.assertEqual(zipfp.namelist(), [TESTFN])
zipfp.close()
f.close()
def test_WriteDefaultName(self):
# Check that calling ZipFile.write without arcname specified produces the expected result
zipfp = zipfile.ZipFile(TESTFN2, "w")
zipfp.write(TESTFN)
self.assertEqual(zipfp.read(TESTFN), open(TESTFN, "rb").read())
zipfp.close()
def test_PerFileCompression(self):
# Check that files within a Zip archive can have different compression options
zipfp = zipfile.ZipFile(TESTFN2, "w")
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)
zipfp.close()
def test_WriteToReadonly(self):
# Check that trying to call write() on a readonly ZipFile object
# raises a RuntimeError
zipf = zipfile.ZipFile(TESTFN2, mode="w")
zipf.writestr("somefile.txt", "bogus")
zipf.close()
zipf = zipfile.ZipFile(TESTFN2, mode="r")
self.assertRaises(RuntimeError, zipf.write, TESTFN)
zipf.close()
def testExtract(self):
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED)
for fpath, fdata in SMALL_TEST_DATA:
zipfp.writestr(fpath, fdata)
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "r")
for fpath, fdata in SMALL_TEST_DATA:
writtenfile = zipfp.extract(fpath)
# make sure it was written to the right place
if os.path.isabs(fpath):
correctfile = os.path.join(os.getcwd(), fpath[1:])
else:
correctfile = os.path.join(os.getcwd(), fpath)
correctfile = os.path.normpath(correctfile)
self.assertEqual(writtenfile, correctfile)
# make sure correct data is in correct file
self.assertEqual(fdata.encode(), open(writtenfile, "rb").read())
os.remove(writtenfile)
zipfp.close()
# remove the test file subdirectories
shutil.rmtree(os.path.join(os.getcwd(), 'ziptest2dir'))
def testExtractAll(self):
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED)
for fpath, fdata in SMALL_TEST_DATA:
zipfp.writestr(fpath, fdata)
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "r")
zipfp.extractall()
for fpath, fdata in SMALL_TEST_DATA:
if os.path.isabs(fpath):
outfile = os.path.join(os.getcwd(), fpath[1:])
else:
outfile = os.path.join(os.getcwd(), fpath)
self.assertEqual(fdata.encode(), open(outfile, "rb").read())
os.remove(outfile)
zipfp.close()
# remove the test file subdirectories
shutil.rmtree(os.path.join(os.getcwd(), 'ziptest2dir'))
def zip_test_writestr_permissions(self, f, compression):
# Make sure that writestr creates files with mode 0600,
# when it is passed a name rather than a ZipInfo instance.
self.makeTestArchive(f, compression)
zipfp = zipfile.ZipFile(f, "r")
zinfo = zipfp.getinfo('strfile')
self.assertEqual(zinfo.external_attr, 0o600 << 16)
def test_writestr_permissions(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zip_test_writestr_permissions(f, zipfile.ZIP_STORED)
def test_writestr_extended_local_header_issue1202(self):
orig_zip = zipfile.ZipFile(TESTFN2, 'w')
for data in 'abcdefghijklmnop':
zinfo = zipfile.ZipInfo(data)
zinfo.flag_bits |= 0x08 # Include an extended local header.
orig_zip.writestr(zinfo, data)
orig_zip.close()
def tearDown(self):
os.remove(TESTFN)
os.remove(TESTFN2)
class TestZip64InSmallFiles(unittest.TestCase):
# These tests test the ZIP64 functionality without using large files,
# see test_zipfile64 for proper tests.
def setUp(self):
self._limit = zipfile.ZIP64_LIMIT
zipfile.ZIP64_LIMIT = 5
line_gen = (bytes("Test of zipfile line %d." % i, "ascii")
for i in range(0, FIXEDTEST_SIZE))
self.data = b'\n'.join(line_gen)
# Make a source file with some lines
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
def largeFileExceptionTest(self, f, compression):
zipfp = zipfile.ZipFile(f, "w", compression)
self.assertRaises(zipfile.LargeZipFile,
zipfp.write, TESTFN, "another.name")
zipfp.close()
def largeFileExceptionTest2(self, f, compression):
zipfp = zipfile.ZipFile(f, "w", compression)
self.assertRaises(zipfile.LargeZipFile,
zipfp.writestr, "another.name", self.data)
zipfp.close()
def testLargeFileException(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.largeFileExceptionTest(f, zipfile.ZIP_STORED)
self.largeFileExceptionTest2(f, zipfile.ZIP_STORED)
def zipTest(self, f, compression):
# Create the ZIP archive
zipfp = zipfile.ZipFile(f, "w", compression, allowZip64=True)
zipfp.write(TESTFN, "another.name")
zipfp.write(TESTFN, TESTFN)
zipfp.writestr("strfile", self.data)
zipfp.close()
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
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.assertTrue('File Name' in lines[0])
self.assertTrue('Modified' in lines[0])
self.assertTrue('Size' in lines[0])
fn, date, time, size = lines[1].split()
self.assertEqual(fn, 'another.name')
# XXX: timestamp is not tested
self.assertEqual(size, str(len(self.data)))
# Check the namelist
names = zipfp.namelist()
self.assertEqual(len(names), 3)
self.assertTrue(TESTFN in names)
self.assertTrue("another.name" in names)
self.assertTrue("strfile" in names)
# Check infolist
infos = zipfp.infolist()
names = [ i.filename for i in infos ]
self.assertEqual(len(names), 3)
self.assertTrue(TESTFN in names)
self.assertTrue("another.name" in names)
self.assertTrue("strfile" in 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 doesn't raise an exception
zipfp.testzip()
zipfp.close()
def testStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipTest(f, zipfile.ZIP_STORED)
if zlib:
def testDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipTest(f, zipfile.ZIP_DEFLATED)
def testAbsoluteArcnames(self):
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED, allowZip64=True)
zipfp.write(TESTFN, "/absolute")
zipfp.close()
zipfp = zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_STORED)
self.assertEqual(zipfp.namelist(), ["absolute"])
zipfp.close()
def tearDown(self):
zipfile.ZIP64_LIMIT = self._limit
os.remove(TESTFN)
os.remove(TESTFN2)
class PyZipFileTests(unittest.TestCase):
def testWritePyfile(self):
zipfp = zipfile.PyZipFile(TemporaryFile(), "w")
fn = __file__
if fn.endswith('.pyc') or fn.endswith('.pyo'):
fn = fn[:-1]
zipfp.writepy(fn)
bn = os.path.basename(fn)
self.assertTrue(bn not in zipfp.namelist())
self.assertTrue(bn + 'o' in zipfp.namelist() or bn + 'c' in zipfp.namelist())
zipfp.close()
zipfp = zipfile.PyZipFile(TemporaryFile(), "w")
fn = __file__
if fn.endswith('.pyc') or fn.endswith('.pyo'):
fn = fn[:-1]
zipfp.writepy(fn, "testpackage")
bn = "%s/%s"%("testpackage", os.path.basename(fn))
self.assertTrue(bn not in zipfp.namelist())
self.assertTrue(bn + 'o' in zipfp.namelist() or bn + 'c' in zipfp.namelist())
zipfp.close()
def testWritePythonPackage(self):
import email
packagedir = os.path.dirname(email.__file__)
zipfp = zipfile.PyZipFile(TemporaryFile(), "w")
zipfp.writepy(packagedir)
# Check for a couple of modules at different levels of the hieararchy
names = zipfp.namelist()
self.assertTrue('email/__init__.pyo' in names or 'email/__init__.pyc' in names)
self.assertTrue('email/mime/text.pyo' in names or 'email/mime/text.pyc' in names)
def testWritePythonDirectory(self):
os.mkdir(TESTFN2)
try:
fp = open(os.path.join(TESTFN2, "mod1.py"), "w")
fp.write("print(42)\n")
fp.close()
fp = open(os.path.join(TESTFN2, "mod2.py"), "w")
fp.write("print(42 * 42)\n")
fp.close()
fp = open(os.path.join(TESTFN2, "mod2.txt"), "w")
fp.write("bla bla bla\n")
fp.close()
zipfp = zipfile.PyZipFile(TemporaryFile(), "w")
zipfp.writepy(TESTFN2)
names = zipfp.namelist()
self.assertTrue('mod1.pyc' in names or 'mod1.pyo' in names)
self.assertTrue('mod2.pyc' in names or 'mod2.pyo' in names)
self.assertTrue('mod2.txt' not in names)
finally:
shutil.rmtree(TESTFN2)
def testWriteNonPyfile(self):
zipfp = zipfile.PyZipFile(TemporaryFile(), "w")
open(TESTFN, 'w').write('most definitely not a python file')
self.assertRaises(RuntimeError, zipfp.writepy, TESTFN)
os.remove(TESTFN)
class OtherTests(unittest.TestCase):
zips_with_bad_crc = {
zipfile.ZIP_STORED: (
b'PK\003\004\024\0\0\0\0\0 \213\212;:r'
b'\253\377\f\0\0\0\f\0\0\0\005\0\0\000af'
b'ilehello,AworldP'
b'K\001\002\024\003\024\0\0\0\0\0 \213\212;:'
b'r\253\377\f\0\0\0\f\0\0\0\005\0\0\0\0'
b'\0\0\0\0\0\0\0\200\001\0\0\0\000afi'
b'lePK\005\006\0\0\0\0\001\0\001\0003\000'
b'\0\0/\0\0\0\0\0'),
zipfile.ZIP_DEFLATED: (
b'PK\x03\x04\x14\x00\x00\x00\x08\x00n}\x0c=FA'
b'KE\x10\x00\x00\x00n\x00\x00\x00\x05\x00\x00\x00af'
b'ile\xcbH\xcd\xc9\xc9W(\xcf/\xcaI\xc9\xa0'
b'=\x13\x00PK\x01\x02\x14\x03\x14\x00\x00\x00\x08\x00n'
b'}\x0c=FAKE\x10\x00\x00\x00n\x00\x00\x00\x05'
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x01\x00\x00\x00'
b'\x00afilePK\x05\x06\x00\x00\x00\x00\x01\x00'
b'\x01\x003\x00\x00\x003\x00\x00\x00\x00\x00'),
}
def testUnicodeFilenames(self):
zf = zipfile.ZipFile(TESTFN, "w")
zf.writestr("foo.txt", "Test for unicode filename")
zf.writestr("\xf6.txt", "Test for unicode filename")
zf.close()
zf = zipfile.ZipFile(TESTFN, "r")
self.assertEqual(zf.filelist[0].filename, "foo.txt")
self.assertEqual(zf.filelist[1].filename, "\xf6.txt")
zf.close()
def testCreateNonExistentFileForAppend(self):
if os.path.exists(TESTFN):
os.unlink(TESTFN)
filename = 'testfile.txt'
content = b'hello, world. this is some content.'
try:
zf = zipfile.ZipFile(TESTFN, 'a')
zf.writestr(filename, content)
zf.close()
except IOError:
self.fail('Could not append data to a non-existent zip file.')
self.assertTrue(os.path.exists(TESTFN))
zf = zipfile.ZipFile(TESTFN, 'r')
self.assertEqual(zf.read(filename), content)
zf.close()
def testCloseErroneousFile(self):
# This test checks that the ZipFile constructor closes the file object
# it opens if there's an error in the file. If it doesn't, the traceback
# holds a reference to the ZipFile object and, indirectly, the file object.
# On Windows, this causes the os.unlink() call to fail because the
# underlying file is still open. This is SF bug #412214.
#
fp = open(TESTFN, "w")
fp.write("this is not a legal zip file\n")
fp.close()
try:
zf = zipfile.ZipFile(TESTFN)
except zipfile.BadZipfile:
pass
def testIsZipErroneousFile(self):
# This test checks that the is_zipfile function correctly identifies
# a file that is not a zip file
# - passing a filename
with open(TESTFN, "w") as fp:
fp.write("this is not a legal zip file\n")
chk = zipfile.is_zipfile(TESTFN)
self.assertTrue(not chk)
# - passing a file object
with open(TESTFN, "rb") as fp:
chk = zipfile.is_zipfile(fp)
self.assertTrue(not chk)
# - passing a file-like object
fp = io.BytesIO()
fp.write(b"this is not a legal zip file\n")
chk = zipfile.is_zipfile(fp)
self.assertTrue(not chk)
fp.seek(0,0)
chk = zipfile.is_zipfile(fp)
self.assertTrue(not chk)
def testIsZipValidFile(self):
# This test checks that the is_zipfile function correctly identifies
# a file that is a zip file
# - passing a filename
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.writestr("foo.txt", b"O, for a Muse of Fire!")
zipf.close()
chk = zipfile.is_zipfile(TESTFN)
self.assertTrue(chk)
# - passing a file object
with open(TESTFN, "rb") as fp:
chk = zipfile.is_zipfile(fp)
self.assertTrue(chk)
fp.seek(0,0)
zip_contents = fp.read()
# - passing a file-like object
fp = io.BytesIO()
fp.write(zip_contents)
chk = zipfile.is_zipfile(fp)
self.assertTrue(chk)
fp.seek(0,0)
chk = zipfile.is_zipfile(fp)
self.assertTrue(chk)
def testNonExistentFileRaisesIOError(self):
# make sure we don't raise an AttributeError when a partially-constructed
# ZipFile instance is finalized; this tests for regression on SF tracker
# bug #403871.
# The bug we're testing for caused an AttributeError to be raised
# when a ZipFile instance was created for a file that did not
# exist; the .fp member was not initialized but was needed by the
# __del__() method. Since the AttributeError is in the __del__(),
# it is ignored, but the user should be sufficiently annoyed by
# the message on the output that regression will be noticed
# quickly.
self.assertRaises(IOError, zipfile.ZipFile, TESTFN)
def test_empty_file_raises_BadZipFile(self):
f = open(TESTFN, 'w')
f.close()
self.assertRaises(zipfile.BadZipfile, zipfile.ZipFile, TESTFN)
f = open(TESTFN, 'w')
f.write("short file")
f.close()
self.assertRaises(zipfile.BadZipfile, zipfile.ZipFile, TESTFN)
def testClosedZipRaisesRuntimeError(self):
# Verify that testzip() doesn't swallow inappropriate exceptions.
data = io.BytesIO()
zipf = zipfile.ZipFile(data, mode="w")
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
# This is correct; calling .read on a closed ZipFile should throw
# a RuntimeError, and so should calling .testzip. An earlier
# version of .testzip would swallow this exception (and any other)
# and report that the first file in the archive was corrupt.
self.assertRaises(RuntimeError, zipf.read, "foo.txt")
self.assertRaises(RuntimeError, zipf.open, "foo.txt")
self.assertRaises(RuntimeError, zipf.testzip)
self.assertRaises(RuntimeError, zipf.writestr, "bogus.txt", "bogus")
open(TESTFN, 'w').write('zipfile test data')
self.assertRaises(RuntimeError, zipf.write, TESTFN)
def test_BadConstructorMode(self):
# Check that bad modes passed to ZipFile constructor are caught
self.assertRaises(RuntimeError, zipfile.ZipFile, TESTFN, "q")
def test_BadOpenMode(self):
# Check that bad modes passed to ZipFile.open are caught
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipf = zipfile.ZipFile(TESTFN, mode="r")
# read the data to make sure the file is there
zipf.read("foo.txt")
self.assertRaises(RuntimeError, zipf.open, "foo.txt", "q")
zipf.close()
def test_Read0(self):
# Check that calling read(0) on a ZipExtFile object returns an empty
# string and doesn't advance file pointer
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
# read the data to make sure the file is there
f = zipf.open("foo.txt")
for i in range(FIXEDTEST_SIZE):
self.assertEqual(f.read(0), b'')
self.assertEqual(f.read(), b"O, for a Muse of Fire!")
zipf.close()
def test_OpenNonexistentItem(self):
# Check that attempting to call open() for an item that doesn't
# exist in the archive raises a RuntimeError
zipf = zipfile.ZipFile(TESTFN, mode="w")
self.assertRaises(KeyError, zipf.open, "foo.txt", "r")
def test_BadCompressionMode(self):
# Check that bad compression methods passed to ZipFile.open are caught
self.assertRaises(RuntimeError, zipfile.ZipFile, TESTFN, "w", -1)
def test_NullByteInFilename(self):
# Check that a filename containing a null byte is properly terminated
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.writestr("foo.txt\x00qqq", b"O, for a Muse of Fire!")
self.assertEqual(zipf.namelist(), ['foo.txt'])
def test_StructSizes(self):
# check that ZIP internal structure sizes are calculated correctly
self.assertEqual(zipfile.sizeEndCentDir, 22)
self.assertEqual(zipfile.sizeCentralDir, 46)
self.assertEqual(zipfile.sizeEndCentDir64, 56)
self.assertEqual(zipfile.sizeEndCentDir64Locator, 20)
def testComments(self):
# This test checks that comments on the archive are handled properly
# check default comment is empty
zipf = zipfile.ZipFile(TESTFN, mode="w")
self.assertEqual(zipf.comment, b'')
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipfr = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(zipfr.comment, b'')
zipfr.close()
# check a simple short comment
comment = b'Bravely taking to his feet, he beat a very brave retreat.'
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.comment = comment
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipfr = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(zipfr.comment, comment)
zipfr.close()
# check a comment of max length
comment2 = ''.join(['%d' % (i**3 % 10) for i in range((1 << 16)-1)])
comment2 = comment2.encode("ascii")
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.comment = comment2
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipfr = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(zipfr.comment, comment2)
zipfr.close()
# check a comment that is too long is truncated
zipf = zipfile.ZipFile(TESTFN, mode="w")
zipf.comment = comment2 + b'oops'
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipfr = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(zipfr.comment, comment2)
zipfr.close()
def check_testzip_with_bad_crc(self, compression):
"""Tests that files with bad CRCs return their name from testzip."""
zipdata = self.zips_with_bad_crc[compression]
zipf = zipfile.ZipFile(io.BytesIO(zipdata), mode="r")
# testzip returns the name of the first corrupt file, or None
self.assertEqual('afile', zipf.testzip())
zipf.close()
def test_testzip_with_bad_crc_stored(self):
self.check_testzip_with_bad_crc(zipfile.ZIP_STORED)
if zlib:
def test_testzip_with_bad_crc_deflated(self):
self.check_testzip_with_bad_crc(zipfile.ZIP_DEFLATED)
def check_read_with_bad_crc(self, compression):
"""Tests that files with bad CRCs raise a BadZipfile exception when read."""
zipdata = self.zips_with_bad_crc[compression]
# Using ZipFile.read()
zipf = zipfile.ZipFile(io.BytesIO(zipdata), mode="r")
self.assertRaises(zipfile.BadZipfile, zipf.read, 'afile')
zipf.close()
# Using ZipExtFile.read()
zipf = zipfile.ZipFile(io.BytesIO(zipdata), mode="r")
corrupt_file = zipf.open('afile', 'r')
self.assertRaises(zipfile.BadZipfile, corrupt_file.read)
corrupt_file.close()
zipf.close()
# Same with small reads (in order to exercise the buffering logic)
zipf = zipfile.ZipFile(io.BytesIO(zipdata), mode="r")
corrupt_file = zipf.open('afile', 'r')
corrupt_file.MIN_READ_SIZE = 2
with self.assertRaises(zipfile.BadZipfile):
while corrupt_file.read(2):
pass
corrupt_file.close()
zipf.close()
def test_read_with_bad_crc_stored(self):
self.check_read_with_bad_crc(zipfile.ZIP_STORED)
if zlib:
def test_read_with_bad_crc_deflated(self):
self.check_read_with_bad_crc(zipfile.ZIP_DEFLATED)
def check_read_return_size(self, compression):
# 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 = b''.join(struct.pack('B', randint(0, 255))
for x in range(file_size))
zipf = zipfile.ZipFile(io.BytesIO(), "w", compression)
try:
zipf.writestr('foo', junk)
fp = zipf.open('foo', 'r')
buf = fp.read(test_size)
self.assertEqual(len(buf), test_size)
finally:
zipf.close()
def test_read_return_size_stored(self):
self.check_read_return_size(zipfile.ZIP_STORED)
if zlib:
def test_read_return_size_deflated(self):
self.check_read_return_size(zipfile.ZIP_DEFLATED)
def tearDown(self):
support.unlink(TESTFN)
support.unlink(TESTFN2)
class DecryptionTests(unittest.TestCase):
# This test checks that ZIP decryption works. Since the library does not
# support encryption at the moment, we use a pre-generated encrypted
# ZIP file
data = (
b'PK\x03\x04\x14\x00\x01\x00\x00\x00n\x92i.#y\xef?&\x00\x00\x00\x1a\x00'
b'\x00\x00\x08\x00\x00\x00test.txt\xfa\x10\xa0gly|\xfa-\xc5\xc0=\xf9y'
b'\x18\xe0\xa8r\xb3Z}Lg\xbc\xae\xf9|\x9b\x19\xe4\x8b\xba\xbb)\x8c\xb0\xdbl'
b'PK\x01\x02\x14\x00\x14\x00\x01\x00\x00\x00n\x92i.#y\xef?&\x00\x00\x00'
b'\x1a\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x01\x00 \x00\xb6\x81'
b'\x00\x00\x00\x00test.txtPK\x05\x06\x00\x00\x00\x00\x01\x00\x01\x006\x00'
b'\x00\x00L\x00\x00\x00\x00\x00' )
data2 = (
b'PK\x03\x04\x14\x00\t\x00\x08\x00\xcf}38xu\xaa\xb2\x14\x00\x00\x00\x00\x02'
b'\x00\x00\x04\x00\x15\x00zeroUT\t\x00\x03\xd6\x8b\x92G\xda\x8b\x92GUx\x04'
b'\x00\xe8\x03\xe8\x03\xc7<M\xb5a\xceX\xa3Y&\x8b{oE\xd7\x9d\x8c\x98\x02\xc0'
b'PK\x07\x08xu\xaa\xb2\x14\x00\x00\x00\x00\x02\x00\x00PK\x01\x02\x17\x03'
b'\x14\x00\t\x00\x08\x00\xcf}38xu\xaa\xb2\x14\x00\x00\x00\x00\x02\x00\x00'
b'\x04\x00\r\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x00\x00\x00\x00ze'
b'roUT\x05\x00\x03\xd6\x8b\x92GUx\x00\x00PK\x05\x06\x00\x00\x00\x00\x01'
b'\x00\x01\x00?\x00\x00\x00[\x00\x00\x00\x00\x00' )
plain = b'zipfile.py encryption test'
plain2 = b'\x00'*512
def setUp(self):
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
self.zip = zipfile.ZipFile(TESTFN, "r")
fp = open(TESTFN2, "wb")
fp.write(self.data2)
fp.close()
self.zip2 = zipfile.ZipFile(TESTFN2, "r")
def tearDown(self):
self.zip.close()
os.unlink(TESTFN)
self.zip2.close()
os.unlink(TESTFN2)
def testNoPassword(self):
# Reading the encrypted file without password
# must generate a RunTime exception
self.assertRaises(RuntimeError, self.zip.read, "test.txt")
self.assertRaises(RuntimeError, self.zip2.read, "zero")
def testBadPassword(self):
self.zip.setpassword(b"perl")
self.assertRaises(RuntimeError, self.zip.read, "test.txt")
self.zip2.setpassword(b"perl")
self.assertRaises(RuntimeError, self.zip2.read, "zero")
def testGoodPassword(self):
self.zip.setpassword(b"python")
self.assertEqual(self.zip.read("test.txt"), self.plain)
self.zip2.setpassword(b"12345")
self.assertEqual(self.zip2.read("zero"), self.plain2)
class TestsWithRandomBinaryFiles(unittest.TestCase):
def setUp(self):
datacount = randint(16, 64)*1024 + randint(1, 1024)
self.data = b''.join(struct.pack('<f', random()*randint(-1000, 1000))
for i in range(datacount))
# Make a source file with some lines
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
def tearDown(self):
support.unlink(TESTFN)
support.unlink(TESTFN2)
def makeTestArchive(self, f, compression):
# Create the ZIP archive
zipfp = zipfile.ZipFile(f, "w", compression)
zipfp.write(TESTFN, "another.name")
zipfp.write(TESTFN, TESTFN)
zipfp.close()
def zipTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
testdata = zipfp.read(TESTFN)
self.assertEqual(len(testdata), len(self.data))
self.assertEqual(testdata, self.data)
self.assertEqual(zipfp.read("another.name"), self.data)
zipfp.close()
def testStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipTest(f, zipfile.ZIP_STORED)
def zipOpenTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
zipdata1 = []
zipopen1 = zipfp.open(TESTFN)
while 1:
read_data = zipopen1.read(256)
if not read_data:
break
zipdata1.append(read_data)
zipdata2 = []
zipopen2 = zipfp.open("another.name")
while 1:
read_data = zipopen2.read(256)
if not read_data:
break
zipdata2.append(read_data)
testdata1 = b''.join(zipdata1)
self.assertEqual(len(testdata1), len(self.data))
self.assertEqual(testdata1, self.data)
testdata2 = b''.join(zipdata2)
self.assertEqual(len(testdata1), len(self.data))
self.assertEqual(testdata1, self.data)
zipfp.close()
def testOpenStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipOpenTest(f, zipfile.ZIP_STORED)
def zipRandomOpenTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
zipdata1 = []
zipopen1 = zipfp.open(TESTFN)
while 1:
read_data = zipopen1.read(randint(1, 1024))
if not read_data:
break
zipdata1.append(read_data)
testdata = b''.join(zipdata1)
self.assertEqual(len(testdata), len(self.data))
self.assertEqual(testdata, self.data)
zipfp.close()
def testRandomOpenStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.zipRandomOpenTest(f, zipfile.ZIP_STORED)
class TestsWithMultipleOpens(unittest.TestCase):
def setUp(self):
# Create the ZIP archive
zipfp = zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_DEFLATED)
zipfp.writestr('ones', '1'*FIXEDTEST_SIZE)
zipfp.writestr('twos', '2'*FIXEDTEST_SIZE)
zipfp.close()
def testSameFile(self):
# Verify that (when the ZipFile is in control of creating file objects)
# multiple open() calls can be made without interfering with each other.
zipf = zipfile.ZipFile(TESTFN2, mode="r")
zopen1 = zipf.open('ones')
zopen2 = zipf.open('ones')
data1 = zopen1.read(500)
data2 = zopen2.read(500)
data1 += zopen1.read(500)
data2 += zopen2.read(500)
self.assertEqual(data1, data2)
zipf.close()
def testDifferentFile(self):
# Verify that (when the ZipFile is in control of creating file objects)
# multiple open() calls can be made without interfering with each other.
zipf = zipfile.ZipFile(TESTFN2, mode="r")
zopen1 = zipf.open('ones')
zopen2 = zipf.open('twos')
data1 = zopen1.read(500)
data2 = zopen2.read(500)
data1 += zopen1.read(500)
data2 += zopen2.read(500)
self.assertEqual(data1, b'1'*FIXEDTEST_SIZE)
self.assertEqual(data2, b'2'*FIXEDTEST_SIZE)
zipf.close()
def testInterleaved(self):
# Verify that (when the ZipFile is in control of creating file objects)
# multiple open() calls can be made without interfering with each other.
zipf = zipfile.ZipFile(TESTFN2, mode="r")
zopen1 = zipf.open('ones')
data1 = zopen1.read(500)
zopen2 = zipf.open('twos')
data2 = zopen2.read(500)
data1 += zopen1.read(500)
data2 += zopen2.read(500)
self.assertEqual(data1, b'1'*FIXEDTEST_SIZE)
self.assertEqual(data2, b'2'*FIXEDTEST_SIZE)
zipf.close()
def tearDown(self):
os.remove(TESTFN2)
class TestWithDirectory(unittest.TestCase):
def setUp(self):
os.mkdir(TESTFN2)
def testExtractDir(self):
zipf = zipfile.ZipFile(findfile("zipdir.zip"))
zipf.extractall(TESTFN2)
self.assertTrue(os.path.isdir(os.path.join(TESTFN2, "a")))
self.assertTrue(os.path.isdir(os.path.join(TESTFN2, "a", "b")))
self.assertTrue(os.path.exists(os.path.join(TESTFN2, "a", "b", "c")))
def test_bug_6050(self):
# Extraction should succeed if directories already exist
os.mkdir(os.path.join(TESTFN2, "a"))
self.testExtractDir()
def testStoreDir(self):
os.mkdir(os.path.join(TESTFN2, "x"))
zipf = zipfile.ZipFile(TESTFN, "w")
zipf.write(os.path.join(TESTFN2, "x"), "x")
self.assertTrue(zipf.filelist[0].filename.endswith("x/"))
def tearDown(self):
shutil.rmtree(TESTFN2)
if os.path.exists(TESTFN):
os.remove(TESTFN)
class UniversalNewlineTests(unittest.TestCase):
def setUp(self):
self.line_gen = [bytes("Test of zipfile line %d." % i, "ascii")
for i in range(FIXEDTEST_SIZE)]
self.seps = ('\r', '\r\n', '\n')
self.arcdata, self.arcfiles = {}, {}
for n, s in enumerate(self.seps):
b = s.encode("ascii")
self.arcdata[s] = b.join(self.line_gen) + b
self.arcfiles[s] = '%s-%d' % (TESTFN, n)
f = open(self.arcfiles[s], "wb")
try:
f.write(self.arcdata[s])
finally:
f.close()
def makeTestArchive(self, f, compression):
# Create the ZIP archive
zipfp = zipfile.ZipFile(f, "w", compression)
for fn in self.arcfiles.values():
zipfp.write(fn, fn)
zipfp.close()
def readTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
for sep, fn in self.arcfiles.items():
zipdata = zipfp.open(fn, "rU").read()
self.assertEqual(self.arcdata[sep], zipdata)
zipfp.close()
def readlineTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
for sep, fn in self.arcfiles.items():
zipopen = zipfp.open(fn, "rU")
for line in self.line_gen:
linedata = zipopen.readline()
self.assertEqual(linedata, line + b'\n')
zipfp.close()
def readlinesTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
for sep, fn in self.arcfiles.items():
ziplines = zipfp.open(fn, "rU").readlines()
for line, zipline in zip(self.line_gen, ziplines):
self.assertEqual(zipline, line + b'\n')
zipfp.close()
def iterlinesTest(self, f, compression):
self.makeTestArchive(f, compression)
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r")
for sep, fn in self.arcfiles.items():
for line, zipline in zip(self.line_gen, zipfp.open(fn, "rU")):
self.assertEqual(zipline, line + b'\n')
zipfp.close()
def testReadStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readTest(f, zipfile.ZIP_STORED)
def testReadlineStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readlineTest(f, zipfile.ZIP_STORED)
def testReadlinesStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readlinesTest(f, zipfile.ZIP_STORED)
def testIterlinesStored(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.iterlinesTest(f, zipfile.ZIP_STORED)
if zlib:
def testReadDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readTest(f, zipfile.ZIP_DEFLATED)
def testReadlineDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readlineTest(f, zipfile.ZIP_DEFLATED)
def testReadlinesDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.readlinesTest(f, zipfile.ZIP_DEFLATED)
def testIterlinesDeflated(self):
for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
self.iterlinesTest(f, zipfile.ZIP_DEFLATED)
def tearDown(self):
for sep, fn in self.arcfiles.items():
os.remove(fn)
support.unlink(TESTFN)
support.unlink(TESTFN2)
def test_main():
run_unittest(TestsWithSourceFile, TestZip64InSmallFiles, OtherTests,
PyZipFileTests, DecryptionTests, TestsWithMultipleOpens,
TestWithDirectory,
UniversalNewlineTests, TestsWithRandomBinaryFiles)
if __name__ == "__main__":
test_main()
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