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49258efada
Add missing import to code that handles too large files and offsets. Use list, not tuple, for a mutable sequence. Add tests to prevent similar mistakes. --------- Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org> Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
1027 lines
41 KiB
Python
1027 lines
41 KiB
Python
import sys
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import os
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import marshal
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import glob
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import importlib
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import importlib.util
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import re
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import struct
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import time
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import unittest
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import unittest.mock
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import warnings
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from test import support
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from test.support import import_helper
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from test.support import os_helper
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from zipfile import ZipFile, ZipInfo, ZIP_STORED, ZIP_DEFLATED
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import zipimport
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import linecache
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import doctest
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import inspect
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import io
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from traceback import extract_tb, extract_stack, print_tb
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try:
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import zlib
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except ImportError:
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zlib = None
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test_src = """\
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def get_name():
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return __name__
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def get_file():
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return __file__
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"""
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test_co = compile(test_src, "<???>", "exec")
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raise_src = 'def do_raise(): raise TypeError\n'
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def make_pyc(co, mtime, size):
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data = marshal.dumps(co)
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pyc = (importlib.util.MAGIC_NUMBER +
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struct.pack("<iLL", 0,
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int(mtime) & 0xFFFF_FFFF, size & 0xFFFF_FFFF) + data)
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return pyc
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def module_path_to_dotted_name(path):
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return path.replace(os.sep, '.')
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NOW = time.time()
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test_pyc = make_pyc(test_co, NOW, len(test_src))
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TESTMOD = "ziptestmodule"
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TESTPACK = "ziptestpackage"
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TESTPACK2 = "ziptestpackage2"
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TEMP_DIR = os.path.abspath("junk95142")
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TEMP_ZIP = os.path.abspath("junk95142.zip")
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TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "zipimport_data")
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pyc_file = importlib.util.cache_from_source(TESTMOD + '.py')
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pyc_ext = '.pyc'
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class ImportHooksBaseTestCase(unittest.TestCase):
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def setUp(self):
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self.path = sys.path[:]
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self.meta_path = sys.meta_path[:]
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self.path_hooks = sys.path_hooks[:]
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sys.path_importer_cache.clear()
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self.modules_before = import_helper.modules_setup()
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def tearDown(self):
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sys.path[:] = self.path
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sys.meta_path[:] = self.meta_path
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sys.path_hooks[:] = self.path_hooks
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sys.path_importer_cache.clear()
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import_helper.modules_cleanup(*self.modules_before)
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class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
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compression = ZIP_STORED
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def setUp(self):
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# We're reusing the zip archive path, so we must clear the
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# cached directory info and linecache.
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linecache.clearcache()
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zipimport._zip_directory_cache.clear()
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ImportHooksBaseTestCase.setUp(self)
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def makeTree(self, files, dirName=TEMP_DIR):
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# Create a filesystem based set of modules/packages
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# defined by files under the directory dirName.
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self.addCleanup(os_helper.rmtree, dirName)
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for name, (mtime, data) in files.items():
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path = os.path.join(dirName, name)
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if path[-1] == os.sep:
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if not os.path.isdir(path):
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os.makedirs(path)
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else:
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dname = os.path.dirname(path)
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if not os.path.isdir(dname):
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os.makedirs(dname)
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with open(path, 'wb') as fp:
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fp.write(data)
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def makeZip(self, files, zipName=TEMP_ZIP, **kw):
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# Create a zip archive based set of modules/packages
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# defined by files in the zip file zipName. If the
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# key 'stuff' exists in kw it is prepended to the archive.
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self.addCleanup(os_helper.unlink, zipName)
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with ZipFile(zipName, "w") as z:
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for name, (mtime, data) in files.items():
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zinfo = ZipInfo(name, time.localtime(mtime))
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zinfo.compress_type = self.compression
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z.writestr(zinfo, data)
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comment = kw.get("comment", None)
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if comment is not None:
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z.comment = comment
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stuff = kw.get("stuff", None)
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if stuff is not None:
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# Prepend 'stuff' to the start of the zipfile
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with open(zipName, "rb") as f:
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data = f.read()
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with open(zipName, "wb") as f:
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f.write(stuff)
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f.write(data)
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def getZip64Files(self):
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# This is the simplest way to make zipfile generate the zip64 EOCD block
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return {f"f{n}.py": (NOW, test_src) for n in range(65537)}
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def doTest(self, expected_ext, files, *modules, **kw):
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self.makeZip(files, **kw)
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self.doTestWithPreBuiltZip(expected_ext, *modules, **kw)
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def doTestWithPreBuiltZip(self, expected_ext, *modules, **kw):
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sys.path.insert(0, TEMP_ZIP)
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mod = importlib.import_module(".".join(modules))
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call = kw.get('call')
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if call is not None:
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call(mod)
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if expected_ext:
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file = mod.get_file()
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self.assertEqual(file, os.path.join(TEMP_ZIP,
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*modules) + expected_ext)
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def testAFakeZlib(self):
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#
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# This could cause a stack overflow before: importing zlib.py
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# from a compressed archive would cause zlib to be imported
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# which would find zlib.py in the archive, which would... etc.
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#
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# This test *must* be executed first: it must be the first one
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# to trigger zipimport to import zlib (zipimport caches the
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# zlib.decompress function object, after which the problem being
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# tested here wouldn't be a problem anymore...
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# (Hence the 'A' in the test method name: to make it the first
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# item in a list sorted by name, like
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# unittest.TestLoader.getTestCaseNames() does.)
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#
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# This test fails on platforms on which the zlib module is
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# statically linked, but the problem it tests for can't
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# occur in that case (builtin modules are always found first),
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# so we'll simply skip it then. Bug #765456.
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#
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if "zlib" in sys.builtin_module_names:
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self.skipTest('zlib is a builtin module')
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if "zlib" in sys.modules:
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del sys.modules["zlib"]
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files = {"zlib.py": (NOW, test_src)}
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try:
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self.doTest(".py", files, "zlib")
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except ImportError:
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if self.compression != ZIP_DEFLATED:
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self.fail("expected test to not raise ImportError")
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else:
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if self.compression != ZIP_STORED:
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self.fail("expected test to raise ImportError")
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def testPy(self):
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files = {TESTMOD + ".py": (NOW, test_src)}
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self.doTest(".py", files, TESTMOD)
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def testPyc(self):
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files = {TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTMOD)
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def testBoth(self):
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTMOD)
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def testUncheckedHashBasedPyc(self):
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source = b"state = 'old'"
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source_hash = importlib.util.source_hash(source)
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bytecode = importlib._bootstrap_external._code_to_hash_pyc(
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compile(source, "???", "exec"),
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source_hash,
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False, # unchecked
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)
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files = {TESTMOD + ".py": (NOW, "state = 'new'"),
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TESTMOD + ".pyc": (NOW - 20, bytecode)}
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def check(mod):
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self.assertEqual(mod.state, 'old')
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self.doTest(None, files, TESTMOD, call=check)
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@unittest.mock.patch('_imp.check_hash_based_pycs', 'always')
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def test_checked_hash_based_change_pyc(self):
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source = b"state = 'old'"
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source_hash = importlib.util.source_hash(source)
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bytecode = importlib._bootstrap_external._code_to_hash_pyc(
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compile(source, "???", "exec"),
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source_hash,
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False,
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)
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files = {TESTMOD + ".py": (NOW, "state = 'new'"),
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TESTMOD + ".pyc": (NOW - 20, bytecode)}
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def check(mod):
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self.assertEqual(mod.state, 'new')
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self.doTest(None, files, TESTMOD, call=check)
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def testEmptyPy(self):
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files = {TESTMOD + ".py": (NOW, "")}
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self.doTest(None, files, TESTMOD)
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def testBadMagic(self):
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# make pyc magic word invalid, forcing loading from .py
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badmagic_pyc = bytearray(test_pyc)
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badmagic_pyc[0] ^= 0x04 # flip an arbitrary bit
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
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self.doTest(".py", files, TESTMOD)
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def testBadMagic2(self):
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# make pyc magic word invalid, causing an ImportError
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badmagic_pyc = bytearray(test_pyc)
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badmagic_pyc[0] ^= 0x04 # flip an arbitrary bit
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files = {TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
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try:
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self.doTest(".py", files, TESTMOD)
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self.fail("This should not be reached")
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except zipimport.ZipImportError as exc:
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self.assertIsInstance(exc.__cause__, ImportError)
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self.assertIn("magic number", exc.__cause__.msg)
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def testBadMTime(self):
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badtime_pyc = bytearray(test_pyc)
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# flip the second bit -- not the first as that one isn't stored in the
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# .py's mtime in the zip archive.
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badtime_pyc[11] ^= 0x02
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, badtime_pyc)}
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self.doTest(".py", files, TESTMOD)
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def test2038MTime(self):
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# Make sure we can handle mtimes larger than what a 32-bit signed number
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# can hold.
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twenty_thirty_eight_pyc = make_pyc(test_co, 2**32 - 1, len(test_src))
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, twenty_thirty_eight_pyc)}
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self.doTest(".py", files, TESTMOD)
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def testPackage(self):
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packdir = TESTPACK + os.sep
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files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir + TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTPACK, TESTMOD)
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def testSubPackage(self):
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# Test that subpackages function when loaded from zip
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# archives.
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTPACK, TESTPACK2, TESTMOD)
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def testSubNamespacePackage(self):
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# Test that implicit namespace subpackages function
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# when loaded from zip archives.
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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# The first two files are just directory entries (so have no data).
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files = {packdir: (NOW, ""),
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packdir2: (NOW, ""),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTPACK, TESTPACK2, TESTMOD)
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def testMixedNamespacePackage(self):
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# Test implicit namespace packages spread between a
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# real filesystem and a zip archive.
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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packdir3 = packdir2 + TESTPACK + '3' + os.sep
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files1 = {packdir: (NOW, ""),
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packdir + TESTMOD + pyc_ext: (NOW, test_pyc),
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packdir2: (NOW, ""),
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packdir3: (NOW, ""),
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packdir3 + TESTMOD + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + '3' + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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files2 = {packdir: (NOW, ""),
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packdir + TESTMOD + '2' + pyc_ext: (NOW, test_pyc),
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packdir2: (NOW, ""),
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packdir2 + TESTMOD + '2' + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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zip1 = os.path.abspath("path1.zip")
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self.makeZip(files1, zip1)
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zip2 = TEMP_DIR
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self.makeTree(files2, zip2)
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# zip2 should override zip1.
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sys.path.insert(0, zip1)
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sys.path.insert(0, zip2)
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mod = importlib.import_module(TESTPACK)
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# if TESTPACK is functioning as a namespace pkg then
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# there should be two entries in the __path__.
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# First should be path2 and second path1.
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self.assertEqual(2, len(mod.__path__))
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p1, p2 = mod.__path__
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self.assertEqual(os.path.basename(TEMP_DIR), p1.split(os.sep)[-2])
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self.assertEqual("path1.zip", p2.split(os.sep)[-2])
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# packdir3 should import as a namespace package.
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# Its __path__ is an iterable of 1 element from zip1.
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mod = importlib.import_module(packdir3.replace(os.sep, '.')[:-1])
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self.assertEqual(1, len(mod.__path__))
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mpath = list(mod.__path__)[0].split('path1.zip' + os.sep)[1]
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self.assertEqual(packdir3[:-1], mpath)
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# TESTPACK/TESTMOD only exists in path1.
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mod = importlib.import_module('.'.join((TESTPACK, TESTMOD)))
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self.assertEqual("path1.zip", mod.__file__.split(os.sep)[-3])
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# And TESTPACK/(TESTMOD + '2') only exists in path2.
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mod = importlib.import_module('.'.join((TESTPACK, TESTMOD + '2')))
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self.assertEqual(os.path.basename(TEMP_DIR),
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mod.__file__.split(os.sep)[-3])
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# One level deeper...
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subpkg = '.'.join((TESTPACK, TESTPACK2))
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mod = importlib.import_module(subpkg)
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self.assertEqual(2, len(mod.__path__))
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p1, p2 = mod.__path__
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self.assertEqual(os.path.basename(TEMP_DIR), p1.split(os.sep)[-3])
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self.assertEqual("path1.zip", p2.split(os.sep)[-3])
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# subpkg.TESTMOD exists in both zips should load from zip2.
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mod = importlib.import_module('.'.join((subpkg, TESTMOD)))
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self.assertEqual(os.path.basename(TEMP_DIR),
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mod.__file__.split(os.sep)[-4])
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# subpkg.TESTMOD + '2' only exists in zip2.
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mod = importlib.import_module('.'.join((subpkg, TESTMOD + '2')))
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self.assertEqual(os.path.basename(TEMP_DIR),
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mod.__file__.split(os.sep)[-4])
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# Finally subpkg.TESTMOD + '3' only exists in zip1.
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mod = importlib.import_module('.'.join((subpkg, TESTMOD + '3')))
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self.assertEqual('path1.zip', mod.__file__.split(os.sep)[-4])
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def testNamespacePackage(self):
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# Test implicit namespace packages spread between multiple zip
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# archives.
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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packdir3 = packdir2 + TESTPACK + '3' + os.sep
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files1 = {packdir: (NOW, ""),
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packdir + TESTMOD + pyc_ext: (NOW, test_pyc),
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packdir2: (NOW, ""),
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packdir3: (NOW, ""),
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packdir3 + TESTMOD + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + '3' + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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zip1 = os.path.abspath("path1.zip")
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self.makeZip(files1, zip1)
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files2 = {packdir: (NOW, ""),
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packdir + TESTMOD + '2' + pyc_ext: (NOW, test_pyc),
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packdir2: (NOW, ""),
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packdir2 + TESTMOD + '2' + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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zip2 = os.path.abspath("path2.zip")
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self.makeZip(files2, zip2)
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# zip2 should override zip1.
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sys.path.insert(0, zip1)
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sys.path.insert(0, zip2)
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mod = importlib.import_module(TESTPACK)
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# if TESTPACK is functioning as a namespace pkg then
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# there should be two entries in the __path__.
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# First should be path2 and second path1.
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self.assertEqual(2, len(mod.__path__))
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p1, p2 = mod.__path__
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self.assertEqual("path2.zip", p1.split(os.sep)[-2])
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self.assertEqual("path1.zip", p2.split(os.sep)[-2])
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# packdir3 should import as a namespace package.
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# Tts __path__ is an iterable of 1 element from zip1.
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mod = importlib.import_module(packdir3.replace(os.sep, '.')[:-1])
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self.assertEqual(1, len(mod.__path__))
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mpath = list(mod.__path__)[0].split('path1.zip' + os.sep)[1]
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self.assertEqual(packdir3[:-1], mpath)
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# TESTPACK/TESTMOD only exists in path1.
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mod = importlib.import_module('.'.join((TESTPACK, TESTMOD)))
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self.assertEqual("path1.zip", mod.__file__.split(os.sep)[-3])
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# And TESTPACK/(TESTMOD + '2') only exists in path2.
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mod = importlib.import_module('.'.join((TESTPACK, TESTMOD + '2')))
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self.assertEqual("path2.zip", mod.__file__.split(os.sep)[-3])
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# One level deeper...
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subpkg = '.'.join((TESTPACK, TESTPACK2))
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mod = importlib.import_module(subpkg)
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self.assertEqual(2, len(mod.__path__))
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p1, p2 = mod.__path__
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self.assertEqual("path2.zip", p1.split(os.sep)[-3])
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self.assertEqual("path1.zip", p2.split(os.sep)[-3])
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# subpkg.TESTMOD exists in both zips should load from zip2.
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mod = importlib.import_module('.'.join((subpkg, TESTMOD)))
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self.assertEqual('path2.zip', mod.__file__.split(os.sep)[-4])
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|
|
|
# subpkg.TESTMOD + '2' only exists in zip2.
|
|
mod = importlib.import_module('.'.join((subpkg, TESTMOD + '2')))
|
|
self.assertEqual('path2.zip', mod.__file__.split(os.sep)[-4])
|
|
|
|
# Finally subpkg.TESTMOD + '3' only exists in zip1.
|
|
mod = importlib.import_module('.'.join((subpkg, TESTMOD + '3')))
|
|
self.assertEqual('path1.zip', mod.__file__.split(os.sep)[-4])
|
|
|
|
def testZipImporterMethods(self):
|
|
packdir = TESTPACK + os.sep
|
|
packdir2 = packdir + TESTPACK2 + os.sep
|
|
files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc),
|
|
"spam" + pyc_ext: (NOW, test_pyc)}
|
|
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
with ZipFile(TEMP_ZIP, "w") as z:
|
|
for name, (mtime, data) in files.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"spam"
|
|
z.writestr(zinfo, data)
|
|
|
|
zi = zipimport.zipimporter(TEMP_ZIP)
|
|
self.assertEqual(zi.archive, TEMP_ZIP)
|
|
self.assertTrue(zi.is_package(TESTPACK))
|
|
|
|
# PEP 302
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
|
|
mod = zi.load_module(TESTPACK)
|
|
self.assertEqual(zi.get_filename(TESTPACK), mod.__file__)
|
|
|
|
# PEP 451
|
|
spec = zi.find_spec('spam')
|
|
self.assertIsNotNone(spec)
|
|
self.assertIsInstance(spec.loader, zipimport.zipimporter)
|
|
self.assertFalse(spec.loader.is_package('spam'))
|
|
exec_mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(exec_mod)
|
|
self.assertEqual(spec.loader.get_filename('spam'), exec_mod.__file__)
|
|
|
|
spec = zi.find_spec(TESTPACK)
|
|
mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(mod)
|
|
self.assertEqual(zi.get_filename(TESTPACK), mod.__file__)
|
|
|
|
existing_pack_path = importlib.import_module(TESTPACK).__path__[0]
|
|
expected_path_path = os.path.join(TEMP_ZIP, TESTPACK)
|
|
self.assertEqual(existing_pack_path, expected_path_path)
|
|
|
|
self.assertFalse(zi.is_package(packdir + '__init__'))
|
|
self.assertTrue(zi.is_package(packdir + TESTPACK2))
|
|
self.assertFalse(zi.is_package(packdir2 + TESTMOD))
|
|
|
|
mod_path = packdir2 + TESTMOD
|
|
mod_name = module_path_to_dotted_name(mod_path)
|
|
mod = importlib.import_module(mod_name)
|
|
self.assertTrue(mod_name in sys.modules)
|
|
self.assertIsNone(zi.get_source(TESTPACK))
|
|
self.assertIsNone(zi.get_source(mod_path))
|
|
self.assertEqual(zi.get_filename(mod_path), mod.__file__)
|
|
# To pass in the module name instead of the path, we must use the
|
|
# right importer
|
|
loader = mod.__spec__.loader
|
|
self.assertIsNone(loader.get_source(mod_name))
|
|
self.assertEqual(loader.get_filename(mod_name), mod.__file__)
|
|
|
|
# test prefix and archivepath members
|
|
zi2 = zipimport.zipimporter(TEMP_ZIP + os.sep + TESTPACK)
|
|
self.assertEqual(zi2.archive, TEMP_ZIP)
|
|
self.assertEqual(zi2.prefix, TESTPACK + os.sep)
|
|
|
|
def testInvalidateCaches(self):
|
|
packdir = TESTPACK + os.sep
|
|
packdir2 = packdir + TESTPACK2 + os.sep
|
|
files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc),
|
|
"spam" + pyc_ext: (NOW, test_pyc)}
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
with ZipFile(TEMP_ZIP, "w") as z:
|
|
for name, (mtime, data) in files.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"spam"
|
|
z.writestr(zinfo, data)
|
|
|
|
zi = zipimport.zipimporter(TEMP_ZIP)
|
|
self.assertEqual(zi._get_files().keys(), files.keys())
|
|
# Check that the file information remains accurate after reloading
|
|
zi.invalidate_caches()
|
|
self.assertEqual(zi._get_files().keys(), files.keys())
|
|
# Add a new file to the ZIP archive
|
|
newfile = {"spam2" + pyc_ext: (NOW, test_pyc)}
|
|
files.update(newfile)
|
|
with ZipFile(TEMP_ZIP, "a") as z:
|
|
for name, (mtime, data) in newfile.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"spam"
|
|
z.writestr(zinfo, data)
|
|
# Check that we can detect the new file after invalidating the cache
|
|
zi.invalidate_caches()
|
|
self.assertEqual(zi._get_files().keys(), files.keys())
|
|
spec = zi.find_spec('spam2')
|
|
self.assertIsNotNone(spec)
|
|
self.assertIsInstance(spec.loader, zipimport.zipimporter)
|
|
# Check that the cached data is removed if the file is deleted
|
|
os.remove(TEMP_ZIP)
|
|
zi.invalidate_caches()
|
|
self.assertFalse(zi._get_files())
|
|
self.assertIsNone(zipimport._zip_directory_cache.get(zi.archive))
|
|
self.assertIsNone(zi.find_spec("name_does_not_matter"))
|
|
|
|
def testInvalidateCachesWithMultipleZipimports(self):
|
|
packdir = TESTPACK + os.sep
|
|
packdir2 = packdir + TESTPACK2 + os.sep
|
|
files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc),
|
|
"spam" + pyc_ext: (NOW, test_pyc)}
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
with ZipFile(TEMP_ZIP, "w") as z:
|
|
for name, (mtime, data) in files.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"spam"
|
|
z.writestr(zinfo, data)
|
|
|
|
zi = zipimport.zipimporter(TEMP_ZIP)
|
|
self.assertEqual(zi._get_files().keys(), files.keys())
|
|
# Zipimporter for the same path.
|
|
zi2 = zipimport.zipimporter(TEMP_ZIP)
|
|
self.assertEqual(zi2._get_files().keys(), files.keys())
|
|
# Add a new file to the ZIP archive to make the cache wrong.
|
|
newfile = {"spam2" + pyc_ext: (NOW, test_pyc)}
|
|
files.update(newfile)
|
|
with ZipFile(TEMP_ZIP, "a") as z:
|
|
for name, (mtime, data) in newfile.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"spam"
|
|
z.writestr(zinfo, data)
|
|
# Invalidate the cache of the first zipimporter.
|
|
zi.invalidate_caches()
|
|
# Check that the second zipimporter detects the new file and isn't using a stale cache.
|
|
self.assertEqual(zi2._get_files().keys(), files.keys())
|
|
spec = zi2.find_spec('spam2')
|
|
self.assertIsNotNone(spec)
|
|
self.assertIsInstance(spec.loader, zipimport.zipimporter)
|
|
|
|
def testZipImporterMethodsInSubDirectory(self):
|
|
packdir = TESTPACK + os.sep
|
|
packdir2 = packdir + TESTPACK2 + os.sep
|
|
files = {packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
|
|
packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
|
|
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
with ZipFile(TEMP_ZIP, "w") as z:
|
|
for name, (mtime, data) in files.items():
|
|
zinfo = ZipInfo(name, time.localtime(mtime))
|
|
zinfo.compress_type = self.compression
|
|
zinfo.comment = b"eggs"
|
|
z.writestr(zinfo, data)
|
|
|
|
zi = zipimport.zipimporter(TEMP_ZIP + os.sep + packdir)
|
|
self.assertEqual(zi.archive, TEMP_ZIP)
|
|
self.assertEqual(zi.prefix, packdir)
|
|
self.assertTrue(zi.is_package(TESTPACK2))
|
|
# PEP 302
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
mod = zi.load_module(TESTPACK2)
|
|
self.assertEqual(zi.get_filename(TESTPACK2), mod.__file__)
|
|
# PEP 451
|
|
spec = zi.find_spec(TESTPACK2)
|
|
mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(mod)
|
|
self.assertEqual(spec.loader.get_filename(TESTPACK2), mod.__file__)
|
|
|
|
self.assertFalse(zi.is_package(TESTPACK2 + os.sep + '__init__'))
|
|
self.assertFalse(zi.is_package(TESTPACK2 + os.sep + TESTMOD))
|
|
|
|
pkg_path = TEMP_ZIP + os.sep + packdir + TESTPACK2
|
|
zi2 = zipimport.zipimporter(pkg_path)
|
|
|
|
# PEP 451
|
|
spec = zi2.find_spec(TESTMOD)
|
|
self.assertIsNotNone(spec)
|
|
self.assertIsInstance(spec.loader, zipimport.zipimporter)
|
|
self.assertFalse(spec.loader.is_package(TESTMOD))
|
|
load_mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(load_mod)
|
|
self.assertEqual(
|
|
spec.loader.get_filename(TESTMOD), load_mod.__file__)
|
|
|
|
mod_path = TESTPACK2 + os.sep + TESTMOD
|
|
mod_name = module_path_to_dotted_name(mod_path)
|
|
mod = importlib.import_module(mod_name)
|
|
self.assertTrue(mod_name in sys.modules)
|
|
self.assertIsNone(zi.get_source(TESTPACK2))
|
|
self.assertIsNone(zi.get_source(mod_path))
|
|
self.assertEqual(zi.get_filename(mod_path), mod.__file__)
|
|
# To pass in the module name instead of the path, we must use the
|
|
# right importer.
|
|
loader = mod.__loader__
|
|
self.assertIsNone(loader.get_source(mod_name))
|
|
self.assertEqual(loader.get_filename(mod_name), mod.__file__)
|
|
|
|
def testGetData(self):
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
with ZipFile(TEMP_ZIP, "w") as z:
|
|
z.compression = self.compression
|
|
name = "testdata.dat"
|
|
data = bytes(x for x in range(256))
|
|
z.writestr(name, data)
|
|
|
|
zi = zipimport.zipimporter(TEMP_ZIP)
|
|
self.assertEqual(data, zi.get_data(name))
|
|
self.assertIn('zipimporter object', repr(zi))
|
|
|
|
def testImporterAttr(self):
|
|
src = """if 1: # indent hack
|
|
def get_file():
|
|
return __file__
|
|
if __loader__.get_data("some.data") != b"some data":
|
|
raise AssertionError("bad data")\n"""
|
|
pyc = make_pyc(compile(src, "<???>", "exec"), NOW, len(src))
|
|
files = {TESTMOD + pyc_ext: (NOW, pyc),
|
|
"some.data": (NOW, "some data")}
|
|
self.doTest(pyc_ext, files, TESTMOD)
|
|
|
|
def testDefaultOptimizationLevel(self):
|
|
# zipimport should use the default optimization level (#28131)
|
|
src = """if 1: # indent hack
|
|
def test(val):
|
|
assert(val)
|
|
return val\n"""
|
|
files = {TESTMOD + '.py': (NOW, src)}
|
|
self.makeZip(files)
|
|
sys.path.insert(0, TEMP_ZIP)
|
|
mod = importlib.import_module(TESTMOD)
|
|
self.assertEqual(mod.test(1), 1)
|
|
if __debug__:
|
|
self.assertRaises(AssertionError, mod.test, False)
|
|
else:
|
|
self.assertEqual(mod.test(0), 0)
|
|
|
|
def testImport_WithStuff(self):
|
|
# try importing from a zipfile which contains additional
|
|
# stuff at the beginning of the file
|
|
files = {TESTMOD + ".py": (NOW, test_src)}
|
|
self.doTest(".py", files, TESTMOD,
|
|
stuff=b"Some Stuff"*31)
|
|
|
|
def assertModuleSource(self, module):
|
|
self.assertEqual(inspect.getsource(module), test_src)
|
|
|
|
def testGetSource(self):
|
|
files = {TESTMOD + ".py": (NOW, test_src)}
|
|
self.doTest(".py", files, TESTMOD, call=self.assertModuleSource)
|
|
|
|
def testGetCompiledSource(self):
|
|
pyc = make_pyc(compile(test_src, "<???>", "exec"), NOW, len(test_src))
|
|
files = {TESTMOD + ".py": (NOW, test_src),
|
|
TESTMOD + pyc_ext: (NOW, pyc)}
|
|
self.doTest(pyc_ext, files, TESTMOD, call=self.assertModuleSource)
|
|
|
|
def runDoctest(self, callback):
|
|
files = {TESTMOD + ".py": (NOW, test_src),
|
|
"xyz.txt": (NOW, ">>> log.append(True)\n")}
|
|
self.doTest(".py", files, TESTMOD, call=callback)
|
|
|
|
def doDoctestFile(self, module):
|
|
log = []
|
|
old_master, doctest.master = doctest.master, None
|
|
try:
|
|
doctest.testfile(
|
|
'xyz.txt', package=module, module_relative=True,
|
|
globs=locals()
|
|
)
|
|
finally:
|
|
doctest.master = old_master
|
|
self.assertEqual(log,[True])
|
|
|
|
def testDoctestFile(self):
|
|
self.runDoctest(self.doDoctestFile)
|
|
|
|
def doDoctestSuite(self, module):
|
|
log = []
|
|
doctest.DocFileTest(
|
|
'xyz.txt', package=module, module_relative=True,
|
|
globs=locals()
|
|
).run()
|
|
self.assertEqual(log,[True])
|
|
|
|
def testDoctestSuite(self):
|
|
self.runDoctest(self.doDoctestSuite)
|
|
|
|
def doTraceback(self, module):
|
|
try:
|
|
module.do_raise()
|
|
except Exception as e:
|
|
tb = e.__traceback__.tb_next
|
|
|
|
f,lno,n,line = extract_tb(tb, 1)[0]
|
|
self.assertEqual(line, raise_src.strip())
|
|
|
|
f,lno,n,line = extract_stack(tb.tb_frame, 1)[0]
|
|
self.assertEqual(line, raise_src.strip())
|
|
|
|
s = io.StringIO()
|
|
print_tb(tb, 1, s)
|
|
self.assertTrue(s.getvalue().endswith(
|
|
' def do_raise(): raise TypeError\n'
|
|
'' if support.has_no_debug_ranges() else
|
|
' ^^^^^^^^^^^^^^^\n'
|
|
))
|
|
else:
|
|
raise AssertionError("This ought to be impossible")
|
|
|
|
def testTraceback(self):
|
|
files = {TESTMOD + ".py": (NOW, raise_src)}
|
|
self.doTest(None, files, TESTMOD, call=self.doTraceback)
|
|
|
|
@unittest.skipIf(os_helper.TESTFN_UNENCODABLE is None,
|
|
"need an unencodable filename")
|
|
def testUnencodable(self):
|
|
filename = os_helper.TESTFN_UNENCODABLE + ".zip"
|
|
self.addCleanup(os_helper.unlink, filename)
|
|
with ZipFile(filename, "w") as z:
|
|
zinfo = ZipInfo(TESTMOD + ".py", time.localtime(NOW))
|
|
zinfo.compress_type = self.compression
|
|
z.writestr(zinfo, test_src)
|
|
spec = zipimport.zipimporter(filename).find_spec(TESTMOD)
|
|
mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(mod)
|
|
|
|
def testBytesPath(self):
|
|
filename = os_helper.TESTFN + ".zip"
|
|
self.addCleanup(os_helper.unlink, filename)
|
|
with ZipFile(filename, "w") as z:
|
|
zinfo = ZipInfo(TESTMOD + ".py", time.localtime(NOW))
|
|
zinfo.compress_type = self.compression
|
|
z.writestr(zinfo, test_src)
|
|
|
|
zipimport.zipimporter(filename)
|
|
with self.assertRaises(TypeError):
|
|
zipimport.zipimporter(os.fsencode(filename))
|
|
with self.assertRaises(TypeError):
|
|
zipimport.zipimporter(bytearray(os.fsencode(filename)))
|
|
with self.assertRaises(TypeError):
|
|
zipimport.zipimporter(memoryview(os.fsencode(filename)))
|
|
|
|
def testComment(self):
|
|
files = {TESTMOD + ".py": (NOW, test_src)}
|
|
self.doTest(".py", files, TESTMOD, comment=b"comment")
|
|
|
|
def testBeginningCruftAndComment(self):
|
|
files = {TESTMOD + ".py": (NOW, test_src)}
|
|
self.doTest(".py", files, TESTMOD, stuff=b"cruft" * 64, comment=b"hi")
|
|
|
|
def testLargestPossibleComment(self):
|
|
files = {TESTMOD + ".py": (NOW, test_src)}
|
|
self.doTest(".py", files, TESTMOD, comment=b"c" * ((1 << 16) - 1))
|
|
|
|
def testZip64(self):
|
|
files = self.getZip64Files()
|
|
self.doTest(".py", files, "f6")
|
|
|
|
def testZip64CruftAndComment(self):
|
|
files = self.getZip64Files()
|
|
self.doTest(".py", files, "f65536", comment=b"c" * ((1 << 16) - 1))
|
|
|
|
def testZip64LargeFile(self):
|
|
support.requires(
|
|
"largefile",
|
|
f"test generates files >{0xFFFFFFFF} bytes and takes a long time "
|
|
"to run"
|
|
)
|
|
|
|
# N.B.: We do alot of gymnastics below in the ZIP_STORED case to save
|
|
# and reconstruct a sparse zip on systems that support sparse files.
|
|
# Instead of creating a ~8GB zip file mainly consisting of null bytes
|
|
# for every run of the test, we create the zip once and save off the
|
|
# non-null portions of the resulting file as data blobs with offsets
|
|
# that allow re-creating the zip file sparsely. This drops disk space
|
|
# usage to ~9KB for the ZIP_STORED case and drops that test time by ~2
|
|
# orders of magnitude. For the ZIP_DEFLATED case, however, we bite the
|
|
# bullet. The resulting zip file is ~8MB of non-null data; so the sparse
|
|
# trick doesn't work and would result in that full ~8MB zip data file
|
|
# being checked in to source control.
|
|
parts_glob = f"sparse-zip64-c{self.compression:d}-0x*.part"
|
|
full_parts_glob = os.path.join(TEST_DATA_DIR, parts_glob)
|
|
pre_built_zip_parts = glob.glob(full_parts_glob)
|
|
|
|
self.addCleanup(os_helper.unlink, TEMP_ZIP)
|
|
if not pre_built_zip_parts:
|
|
if self.compression != ZIP_STORED:
|
|
support.requires(
|
|
"cpu",
|
|
"test requires a lot of CPU for compression."
|
|
)
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
with open(os_helper.TESTFN, "wb") as f:
|
|
f.write(b"data")
|
|
f.write(os.linesep.encode())
|
|
f.seek(0xffff_ffff, os.SEEK_CUR)
|
|
f.write(os.linesep.encode())
|
|
os.utime(os_helper.TESTFN, (0.0, 0.0))
|
|
with ZipFile(
|
|
TEMP_ZIP,
|
|
"w",
|
|
compression=self.compression,
|
|
strict_timestamps=False
|
|
) as z:
|
|
z.write(os_helper.TESTFN, "data1")
|
|
z.writestr(
|
|
ZipInfo("module.py", (1980, 1, 1, 0, 0, 0)), test_src
|
|
)
|
|
z.write(os_helper.TESTFN, "data2")
|
|
|
|
# This "works" but relies on the zip format having a non-empty
|
|
# final page due to the trailing central directory to wind up with
|
|
# the correct length file.
|
|
def make_sparse_zip_parts(name):
|
|
empty_page = b"\0" * 4096
|
|
with open(name, "rb") as f:
|
|
part = None
|
|
try:
|
|
while True:
|
|
offset = f.tell()
|
|
data = f.read(len(empty_page))
|
|
if not data:
|
|
break
|
|
if data != empty_page:
|
|
if not part:
|
|
part_fullname = os.path.join(
|
|
TEST_DATA_DIR,
|
|
f"sparse-zip64-c{self.compression:d}-"
|
|
f"{offset:#011x}.part",
|
|
)
|
|
os.makedirs(
|
|
os.path.dirname(part_fullname),
|
|
exist_ok=True
|
|
)
|
|
part = open(part_fullname, "wb")
|
|
print("Created", part_fullname)
|
|
part.write(data)
|
|
else:
|
|
if part:
|
|
part.close()
|
|
part = None
|
|
finally:
|
|
if part:
|
|
part.close()
|
|
|
|
if self.compression == ZIP_STORED:
|
|
print(f"Creating sparse parts to check in into {TEST_DATA_DIR}:")
|
|
make_sparse_zip_parts(TEMP_ZIP)
|
|
|
|
else:
|
|
def extract_offset(name):
|
|
if m := re.search(r"-(0x[0-9a-f]{9})\.part$", name):
|
|
return int(m.group(1), base=16)
|
|
raise ValueError(f"{name=} does not fit expected pattern.")
|
|
offset_parts = [(extract_offset(n), n) for n in pre_built_zip_parts]
|
|
with open(TEMP_ZIP, "wb") as f:
|
|
for offset, part_fn in sorted(offset_parts):
|
|
with open(part_fn, "rb") as part:
|
|
f.seek(offset, os.SEEK_SET)
|
|
f.write(part.read())
|
|
# Confirm that the reconstructed zip file works and looks right.
|
|
with ZipFile(TEMP_ZIP, "r") as z:
|
|
self.assertEqual(
|
|
z.getinfo("module.py").date_time, (1980, 1, 1, 0, 0, 0)
|
|
)
|
|
self.assertEqual(
|
|
z.read("module.py"), test_src.encode(),
|
|
msg=f"Recreate {full_parts_glob}, unexpected contents."
|
|
)
|
|
def assertDataEntry(name):
|
|
zinfo = z.getinfo(name)
|
|
self.assertEqual(zinfo.date_time, (1980, 1, 1, 0, 0, 0))
|
|
self.assertGreater(zinfo.file_size, 0xffff_ffff)
|
|
assertDataEntry("data1")
|
|
assertDataEntry("data2")
|
|
|
|
self.doTestWithPreBuiltZip(".py", "module")
|
|
|
|
|
|
@support.requires_zlib()
|
|
class CompressedZipImportTestCase(UncompressedZipImportTestCase):
|
|
compression = ZIP_DEFLATED
|
|
|
|
|
|
class BadFileZipImportTestCase(unittest.TestCase):
|
|
def assertZipFailure(self, filename):
|
|
self.assertRaises(zipimport.ZipImportError,
|
|
zipimport.zipimporter, filename)
|
|
|
|
def testNoFile(self):
|
|
self.assertZipFailure('AdfjdkFJKDFJjdklfjs')
|
|
|
|
def testEmptyFilename(self):
|
|
self.assertZipFailure('')
|
|
|
|
def testBadArgs(self):
|
|
self.assertRaises(TypeError, zipimport.zipimporter, None)
|
|
self.assertRaises(TypeError, zipimport.zipimporter, TESTMOD, kwd=None)
|
|
self.assertRaises(TypeError, zipimport.zipimporter,
|
|
list(os.fsencode(TESTMOD)))
|
|
|
|
def testFilenameTooLong(self):
|
|
self.assertZipFailure('A' * 33000)
|
|
|
|
def testEmptyFile(self):
|
|
os_helper.unlink(TESTMOD)
|
|
os_helper.create_empty_file(TESTMOD)
|
|
self.assertZipFailure(TESTMOD)
|
|
|
|
@unittest.skipIf(support.is_wasi, "mode 000 not supported.")
|
|
def testFileUnreadable(self):
|
|
os_helper.unlink(TESTMOD)
|
|
fd = os.open(TESTMOD, os.O_CREAT, 000)
|
|
try:
|
|
os.close(fd)
|
|
|
|
with self.assertRaises(zipimport.ZipImportError) as cm:
|
|
zipimport.zipimporter(TESTMOD)
|
|
finally:
|
|
# If we leave "the read-only bit" set on Windows, nothing can
|
|
# delete TESTMOD, and later tests suffer bogus failures.
|
|
os.chmod(TESTMOD, 0o666)
|
|
os_helper.unlink(TESTMOD)
|
|
|
|
def testNotZipFile(self):
|
|
os_helper.unlink(TESTMOD)
|
|
fp = open(TESTMOD, 'w+')
|
|
fp.write('a' * 22)
|
|
fp.close()
|
|
self.assertZipFailure(TESTMOD)
|
|
|
|
# XXX: disabled until this works on Big-endian machines
|
|
def _testBogusZipFile(self):
|
|
os_helper.unlink(TESTMOD)
|
|
fp = open(TESTMOD, 'w+')
|
|
fp.write(struct.pack('=I', 0x06054B50))
|
|
fp.write('a' * 18)
|
|
fp.close()
|
|
z = zipimport.zipimporter(TESTMOD)
|
|
|
|
try:
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
self.assertRaises(TypeError, z.load_module, None)
|
|
self.assertRaises(TypeError, z.find_module, None)
|
|
self.assertRaises(TypeError, z.find_spec, None)
|
|
self.assertRaises(TypeError, z.exec_module, None)
|
|
self.assertRaises(TypeError, z.is_package, None)
|
|
self.assertRaises(TypeError, z.get_code, None)
|
|
self.assertRaises(TypeError, z.get_data, None)
|
|
self.assertRaises(TypeError, z.get_source, None)
|
|
|
|
error = zipimport.ZipImportError
|
|
self.assertIsNone(z.find_spec('abc'))
|
|
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
self.assertRaises(error, z.load_module, 'abc')
|
|
self.assertRaises(error, z.get_code, 'abc')
|
|
self.assertRaises(OSError, z.get_data, 'abc')
|
|
self.assertRaises(error, z.get_source, 'abc')
|
|
self.assertRaises(error, z.is_package, 'abc')
|
|
finally:
|
|
zipimport._zip_directory_cache.clear()
|
|
|
|
|
|
def tearDownModule():
|
|
os_helper.unlink(TESTMOD)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|