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			616 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			616 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| # -*- coding: utf-8 -*-
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| from __future__ import absolute_import, unicode_literals
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| 
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| import errno
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| import os
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| import shutil
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| import sys
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| import tempfile
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| import time
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| from datetime import datetime, timedelta
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| from io import BytesIO
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| 
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| try:
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|     import threading
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| except ImportError:
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|     import dummy_threading as threading
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| 
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| from django.conf import settings
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| from django.core.exceptions import SuspiciousOperation, ImproperlyConfigured
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| from django.core.files.base import File, ContentFile
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| from django.core.files.images import get_image_dimensions
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| from django.core.files.storage import FileSystemStorage, get_storage_class
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| from django.core.files.uploadedfile import UploadedFile
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| from django.test import SimpleTestCase
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| from django.utils import six
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| from django.utils import unittest
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| from django.test.utils import override_settings
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| from ..servers.tests import LiveServerBase
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| 
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| # Try to import PIL in either of the two ways it can end up installed.
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| # Checking for the existence of Image is enough for CPython, but
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| # for PyPy, you need to check for the underlying modules
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| try:
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|     from PIL import Image, _imaging
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| except ImportError:
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|     try:
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|         import Image, _imaging
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|     except ImportError:
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|         Image = None
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| 
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| 
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| class GetStorageClassTests(SimpleTestCase):
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| 
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|     def test_get_filesystem_storage(self):
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|         """
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|         get_storage_class returns the class for a storage backend name/path.
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|         """
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|         self.assertEqual(
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|             get_storage_class('django.core.files.storage.FileSystemStorage'),
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|             FileSystemStorage)
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| 
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|     def test_get_invalid_storage_module(self):
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|         """
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|         get_storage_class raises an error if the requested import don't exist.
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|         """
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|         self.assertRaisesMessage(
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|             ImproperlyConfigured,
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|             "NonExistingStorage isn't a storage module.",
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|             get_storage_class,
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|             'NonExistingStorage')
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| 
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|     def test_get_nonexisting_storage_class(self):
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|         """
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|         get_storage_class raises an error if the requested class don't exist.
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|         """
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|         self.assertRaisesMessage(
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|             ImproperlyConfigured,
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|             'Storage module "django.core.files.storage" does not define a '\
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|                 '"NonExistingStorage" class.',
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|             get_storage_class,
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|             'django.core.files.storage.NonExistingStorage')
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| 
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|     def test_get_nonexisting_storage_module(self):
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|         """
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|         get_storage_class raises an error if the requested module don't exist.
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|         """
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|         # Error message may or may not be the fully qualified path.
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|         six.assertRaisesRegex(self,
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|             ImproperlyConfigured,
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|             ('Error importing storage module django.core.files.non_existing_'
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|                 'storage: "No module named .*non_existing_storage'),
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|             get_storage_class,
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|             'django.core.files.non_existing_storage.NonExistingStorage'
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|         )
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| 
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| class FileStorageTests(unittest.TestCase):
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|     storage_class = FileSystemStorage
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| 
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|     def setUp(self):
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|         self.temp_dir = tempfile.mkdtemp()
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|         self.storage = self.storage_class(location=self.temp_dir,
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|             base_url='/test_media_url/')
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|         # Set up a second temporary directory which is ensured to have a mixed
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|         # case name.
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|         self.temp_dir2 = tempfile.mkdtemp(suffix='aBc')
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| 
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|     def tearDown(self):
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|         shutil.rmtree(self.temp_dir)
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|         shutil.rmtree(self.temp_dir2)
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| 
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|     def test_emtpy_location(self):
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|         """
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|         Makes sure an exception is raised if the location is empty
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|         """
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|         storage = self.storage_class(location='')
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|         self.assertEqual(storage.base_location, '')
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|         self.assertEqual(storage.location, os.getcwd())
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| 
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|     def test_file_access_options(self):
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|         """
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|         Standard file access options are available, and work as expected.
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|         """
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|         self.assertFalse(self.storage.exists('storage_test'))
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|         f = self.storage.open('storage_test', 'w')
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|         f.write('storage contents')
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|         f.close()
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|         self.assertTrue(self.storage.exists('storage_test'))
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| 
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|         f = self.storage.open('storage_test', 'r')
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|         self.assertEqual(f.read(), 'storage contents')
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|         f.close()
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| 
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|         self.storage.delete('storage_test')
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|         self.assertFalse(self.storage.exists('storage_test'))
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| 
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|     def test_file_accessed_time(self):
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|         """
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|         File storage returns a Datetime object for the last accessed time of
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|         a file.
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|         """
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|         self.assertFalse(self.storage.exists('test.file'))
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| 
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|         f = ContentFile('custom contents')
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|         f_name = self.storage.save('test.file', f)
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|         atime = self.storage.accessed_time(f_name)
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| 
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|         self.assertEqual(atime, datetime.fromtimestamp(
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|             os.path.getatime(self.storage.path(f_name))))
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|         self.assertTrue(datetime.now() - self.storage.accessed_time(f_name) < timedelta(seconds=2))
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|         self.storage.delete(f_name)
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| 
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|     def test_file_created_time(self):
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|         """
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|         File storage returns a Datetime object for the creation time of
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|         a file.
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|         """
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|         self.assertFalse(self.storage.exists('test.file'))
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| 
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|         f = ContentFile('custom contents')
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|         f_name = self.storage.save('test.file', f)
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|         ctime = self.storage.created_time(f_name)
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| 
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|         self.assertEqual(ctime, datetime.fromtimestamp(
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|             os.path.getctime(self.storage.path(f_name))))
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|         self.assertTrue(datetime.now() - self.storage.created_time(f_name) < timedelta(seconds=2))
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| 
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|         self.storage.delete(f_name)
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| 
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|     def test_file_modified_time(self):
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|         """
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|         File storage returns a Datetime object for the last modified time of
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|         a file.
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|         """
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|         self.assertFalse(self.storage.exists('test.file'))
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| 
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|         f = ContentFile('custom contents')
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|         f_name = self.storage.save('test.file', f)
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|         mtime = self.storage.modified_time(f_name)
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| 
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|         self.assertEqual(mtime, datetime.fromtimestamp(
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|             os.path.getmtime(self.storage.path(f_name))))
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|         self.assertTrue(datetime.now() - self.storage.modified_time(f_name) < timedelta(seconds=2))
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| 
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|         self.storage.delete(f_name)
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| 
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|     def test_file_save_without_name(self):
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|         """
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|         File storage extracts the filename from the content object if no
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|         name is given explicitly.
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|         """
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|         self.assertFalse(self.storage.exists('test.file'))
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| 
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|         f = ContentFile('custom contents')
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|         f.name = 'test.file'
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| 
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|         storage_f_name = self.storage.save(None, f)
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| 
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|         self.assertEqual(storage_f_name, f.name)
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| 
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|         self.assertTrue(os.path.exists(os.path.join(self.temp_dir, f.name)))
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| 
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|         self.storage.delete(storage_f_name)
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| 
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|     def test_file_save_with_path(self):
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|         """
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|         Saving a pathname should create intermediate directories as necessary.
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|         """
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|         self.assertFalse(self.storage.exists('path/to'))
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|         self.storage.save('path/to/test.file',
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|             ContentFile('file saved with path'))
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| 
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|         self.assertTrue(self.storage.exists('path/to'))
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|         with self.storage.open('path/to/test.file') as f:
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|             self.assertEqual(f.read(), b'file saved with path')
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| 
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|         self.assertTrue(os.path.exists(
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|             os.path.join(self.temp_dir, 'path', 'to', 'test.file')))
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| 
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|         self.storage.delete('path/to/test.file')
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| 
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|     def test_file_path(self):
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|         """
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|         File storage returns the full path of a file
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|         """
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|         self.assertFalse(self.storage.exists('test.file'))
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| 
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|         f = ContentFile('custom contents')
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|         f_name = self.storage.save('test.file', f)
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| 
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|         self.assertEqual(self.storage.path(f_name),
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|             os.path.join(self.temp_dir, f_name))
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| 
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|         self.storage.delete(f_name)
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| 
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|     def test_file_url(self):
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|         """
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|         File storage returns a url to access a given file from the Web.
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|         """
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|         self.assertEqual(self.storage.url('test.file'),
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|             '%s%s' % (self.storage.base_url, 'test.file'))
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| 
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|         # should encode special chars except ~!*()'
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|         # like encodeURIComponent() JavaScript function do
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|         self.assertEqual(self.storage.url(r"""~!*()'@#$%^&*abc`+ =.file"""),
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|             """/test_media_url/~!*()'%40%23%24%25%5E%26*abc%60%2B%20%3D.file""")
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| 
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|         # should stanslate os path separator(s) to the url path separator
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|         self.assertEqual(self.storage.url("""a/b\\c.file"""),
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|             """/test_media_url/a/b/c.file""")
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| 
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|         self.storage.base_url = None
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|         self.assertRaises(ValueError, self.storage.url, 'test.file')
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| 
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|     def test_listdir(self):
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|         """
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|         File storage returns a tuple containing directories and files.
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|         """
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|         self.assertFalse(self.storage.exists('storage_test_1'))
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|         self.assertFalse(self.storage.exists('storage_test_2'))
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|         self.assertFalse(self.storage.exists('storage_dir_1'))
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| 
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|         f = self.storage.save('storage_test_1', ContentFile('custom content'))
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|         f = self.storage.save('storage_test_2', ContentFile('custom content'))
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|         os.mkdir(os.path.join(self.temp_dir, 'storage_dir_1'))
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| 
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|         dirs, files = self.storage.listdir('')
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|         self.assertEqual(set(dirs), set(['storage_dir_1']))
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|         self.assertEqual(set(files),
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|                          set(['storage_test_1', 'storage_test_2']))
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| 
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|         self.storage.delete('storage_test_1')
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|         self.storage.delete('storage_test_2')
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|         os.rmdir(os.path.join(self.temp_dir, 'storage_dir_1'))
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| 
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|     def test_file_storage_prevents_directory_traversal(self):
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|         """
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|         File storage prevents directory traversal (files can only be accessed if
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|         they're below the storage location).
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|         """
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|         self.assertRaises(SuspiciousOperation, self.storage.exists, '..')
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|         self.assertRaises(SuspiciousOperation, self.storage.exists, '/etc/passwd')
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| 
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|     def test_file_storage_preserves_filename_case(self):
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|         """The storage backend should preserve case of filenames."""
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|         # Create a storage backend associated with the mixed case name
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|         # directory.
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|         temp_storage = self.storage_class(location=self.temp_dir2)
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|         # Ask that storage backend to store a file with a mixed case filename.
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|         mixed_case = 'CaSe_SeNsItIvE'
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|         file = temp_storage.open(mixed_case, 'w')
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|         file.write('storage contents')
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|         file.close()
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|         self.assertEqual(os.path.join(self.temp_dir2, mixed_case),
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|                          temp_storage.path(mixed_case))
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|         temp_storage.delete(mixed_case)
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| 
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|     def test_makedirs_race_handling(self):
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|         """
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|         File storage should be robust against directory creation race conditions.
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|         """
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|         real_makedirs = os.makedirs
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| 
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|         # Monkey-patch os.makedirs, to simulate a normal call, a raced call,
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|         # and an error.
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|         def fake_makedirs(path):
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|             if path == os.path.join(self.temp_dir, 'normal'):
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|                 real_makedirs(path)
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|             elif path == os.path.join(self.temp_dir, 'raced'):
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|                 real_makedirs(path)
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|                 raise OSError(errno.EEXIST, 'simulated EEXIST')
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|             elif path == os.path.join(self.temp_dir, 'error'):
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|                 raise OSError(errno.EACCES, 'simulated EACCES')
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|             else:
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|                 self.fail('unexpected argument %r' % path)
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| 
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|         try:
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|             os.makedirs = fake_makedirs
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| 
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|             self.storage.save('normal/test.file',
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|                 ContentFile('saved normally'))
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|             with self.storage.open('normal/test.file') as f:
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|                 self.assertEqual(f.read(), b'saved normally')
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| 
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|             self.storage.save('raced/test.file',
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|                 ContentFile('saved with race'))
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|             with self.storage.open('raced/test.file') as f:
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|                 self.assertEqual(f.read(), b'saved with race')
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| 
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|             # Check that OSErrors aside from EEXIST are still raised.
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|             self.assertRaises(OSError,
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|                 self.storage.save, 'error/test.file', ContentFile('not saved'))
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|         finally:
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|             os.makedirs = real_makedirs
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| 
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|     def test_remove_race_handling(self):
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|         """
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|         File storage should be robust against file removal race conditions.
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|         """
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|         real_remove = os.remove
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| 
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|         # Monkey-patch os.remove, to simulate a normal call, a raced call,
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|         # and an error.
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|         def fake_remove(path):
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|             if path == os.path.join(self.temp_dir, 'normal.file'):
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|                 real_remove(path)
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|             elif path == os.path.join(self.temp_dir, 'raced.file'):
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|                 real_remove(path)
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|                 raise OSError(errno.ENOENT, 'simulated ENOENT')
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|             elif path == os.path.join(self.temp_dir, 'error.file'):
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|                 raise OSError(errno.EACCES, 'simulated EACCES')
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|             else:
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|                 self.fail('unexpected argument %r' % path)
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| 
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|         try:
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|             os.remove = fake_remove
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| 
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|             self.storage.save('normal.file', ContentFile('delete normally'))
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|             self.storage.delete('normal.file')
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|             self.assertFalse(self.storage.exists('normal.file'))
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| 
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|             self.storage.save('raced.file', ContentFile('delete with race'))
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|             self.storage.delete('raced.file')
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|             self.assertFalse(self.storage.exists('normal.file'))
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| 
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|             # Check that OSErrors aside from ENOENT are still raised.
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|             self.storage.save('error.file', ContentFile('delete with error'))
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|             self.assertRaises(OSError, self.storage.delete, 'error.file')
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|         finally:
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|             os.remove = real_remove
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| 
 | |
|     def test_file_chunks_error(self):
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|         """
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|         Test behaviour when file.chunks() is raising an error
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|         """
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|         f1 = ContentFile('chunks fails')
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|         def failing_chunks():
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|             raise IOError
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|         f1.chunks = failing_chunks
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|         with self.assertRaises(IOError):
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|             self.storage.save('error.file', f1)
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| 
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| 
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| class CustomStorage(FileSystemStorage):
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|     def get_available_name(self, name):
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|         """
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|         Append numbers to duplicate files rather than underscores, like Trac.
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|         """
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|         parts = name.split('.')
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|         basename, ext = parts[0], parts[1:]
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|         number = 2
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|         while self.exists(name):
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|             name = '.'.join([basename, str(number)] + ext)
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|             number += 1
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| 
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|         return name
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| 
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| class CustomStorageTests(FileStorageTests):
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|     storage_class = CustomStorage
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| 
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|     def test_custom_get_available_name(self):
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|         first = self.storage.save('custom_storage', ContentFile('custom contents'))
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|         self.assertEqual(first, 'custom_storage')
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|         second = self.storage.save('custom_storage', ContentFile('more contents'))
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|         self.assertEqual(second, 'custom_storage.2')
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|         self.storage.delete(first)
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|         self.storage.delete(second)
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| 
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| class UnicodeFileNameTests(unittest.TestCase):
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|     def test_unicode_file_names(self):
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|         """
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|         Regression test for #8156: files with unicode names I can't quite figure
 | |
|         out the encoding situation between doctest and this file, but the actual
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|         repr doesn't matter; it just shouldn't return a unicode object.
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|         """
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|         uf = UploadedFile(name='¿Cómo?',content_type='text')
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|         self.assertEqual(type(uf.__repr__()), str)
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| 
 | |
| # Tests for a race condition on file saving (#4948).
 | |
| # This is written in such a way that it'll always pass on platforms
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| # without threading.
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| 
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| class SlowFile(ContentFile):
 | |
|     def chunks(self):
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|         time.sleep(1)
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|         return super(ContentFile, self).chunks()
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| 
 | |
| class FileSaveRaceConditionTest(unittest.TestCase):
 | |
|     def setUp(self):
 | |
|         self.storage_dir = tempfile.mkdtemp()
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|         self.storage = FileSystemStorage(self.storage_dir)
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|         self.thread = threading.Thread(target=self.save_file, args=['conflict'])
 | |
| 
 | |
|     def tearDown(self):
 | |
|         shutil.rmtree(self.storage_dir)
 | |
| 
 | |
|     def save_file(self, name):
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|         name = self.storage.save(name, SlowFile(b"Data"))
 | |
| 
 | |
|     def test_race_condition(self):
 | |
|         self.thread.start()
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|         name = self.save_file('conflict')
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|         self.thread.join()
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|         self.assertTrue(self.storage.exists('conflict'))
 | |
|         self.assertTrue(self.storage.exists('conflict_1'))
 | |
|         self.storage.delete('conflict')
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|         self.storage.delete('conflict_1')
 | |
| 
 | |
| @unittest.skipIf(sys.platform.startswith('win'), "Windows only partially supports umasks and chmod.")
 | |
| class FileStoragePermissions(unittest.TestCase):
 | |
|     def setUp(self):
 | |
|         self.umask = 0o027
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|         self.old_umask = os.umask(self.umask)
 | |
|         self.storage_dir = tempfile.mkdtemp()
 | |
|         self.storage = FileSystemStorage(self.storage_dir)
 | |
| 
 | |
|     def tearDown(self):
 | |
|         shutil.rmtree(self.storage_dir)
 | |
|         os.umask(self.old_umask)
 | |
| 
 | |
|     @override_settings(FILE_UPLOAD_PERMISSIONS=0o654)
 | |
|     def test_file_upload_permissions(self):
 | |
|         name = self.storage.save("the_file", ContentFile("data"))
 | |
|         actual_mode = os.stat(self.storage.path(name))[0] & 0o777
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|         self.assertEqual(actual_mode, 0o654)
 | |
| 
 | |
|     @override_settings(FILE_UPLOAD_PERMISSIONS=None)
 | |
|     def test_file_upload_default_permissions(self):
 | |
|         fname = self.storage.save("some_file", ContentFile("data"))
 | |
|         mode = os.stat(self.storage.path(fname))[0] & 0o777
 | |
|         self.assertEqual(mode, 0o666 & ~self.umask)
 | |
| 
 | |
| class FileStoragePathParsing(unittest.TestCase):
 | |
|     def setUp(self):
 | |
|         self.storage_dir = tempfile.mkdtemp()
 | |
|         self.storage = FileSystemStorage(self.storage_dir)
 | |
| 
 | |
|     def tearDown(self):
 | |
|         shutil.rmtree(self.storage_dir)
 | |
| 
 | |
|     def test_directory_with_dot(self):
 | |
|         """Regression test for #9610.
 | |
| 
 | |
|         If the directory name contains a dot and the file name doesn't, make
 | |
|         sure we still mangle the file name instead of the directory name.
 | |
|         """
 | |
| 
 | |
|         self.storage.save('dotted.path/test', ContentFile("1"))
 | |
|         self.storage.save('dotted.path/test', ContentFile("2"))
 | |
| 
 | |
|         self.assertFalse(os.path.exists(os.path.join(self.storage_dir, 'dotted_.path')))
 | |
|         self.assertTrue(os.path.exists(os.path.join(self.storage_dir, 'dotted.path/test')))
 | |
|         self.assertTrue(os.path.exists(os.path.join(self.storage_dir, 'dotted.path/test_1')))
 | |
| 
 | |
|     def test_first_character_dot(self):
 | |
|         """
 | |
|         File names with a dot as their first character don't have an extension,
 | |
|         and the underscore should get added to the end.
 | |
|         """
 | |
|         self.storage.save('dotted.path/.test', ContentFile("1"))
 | |
|         self.storage.save('dotted.path/.test', ContentFile("2"))
 | |
| 
 | |
|         self.assertTrue(os.path.exists(os.path.join(self.storage_dir, 'dotted.path/.test')))
 | |
|         self.assertTrue(os.path.exists(os.path.join(self.storage_dir, 'dotted.path/.test_1')))
 | |
| 
 | |
| class DimensionClosingBug(unittest.TestCase):
 | |
|     """
 | |
|     Test that get_image_dimensions() properly closes files (#8817)
 | |
|     """
 | |
|     @unittest.skipUnless(Image, "PIL not installed")
 | |
|     def test_not_closing_of_files(self):
 | |
|         """
 | |
|         Open files passed into get_image_dimensions() should stay opened.
 | |
|         """
 | |
|         empty_io = BytesIO()
 | |
|         try:
 | |
|             get_image_dimensions(empty_io)
 | |
|         finally:
 | |
|             self.assertTrue(not empty_io.closed)
 | |
| 
 | |
|     @unittest.skipUnless(Image, "PIL not installed")
 | |
|     def test_closing_of_filenames(self):
 | |
|         """
 | |
|         get_image_dimensions() called with a filename should closed the file.
 | |
|         """
 | |
|         # We need to inject a modified open() builtin into the images module
 | |
|         # that checks if the file was closed properly if the function is
 | |
|         # called with a filename instead of an file object.
 | |
|         # get_image_dimensions will call our catching_open instead of the
 | |
|         # regular builtin one.
 | |
| 
 | |
|         class FileWrapper(object):
 | |
|             _closed = []
 | |
|             def __init__(self, f):
 | |
|                 self.f = f
 | |
|             def __getattr__(self, name):
 | |
|                 return getattr(self.f, name)
 | |
|             def close(self):
 | |
|                 self._closed.append(True)
 | |
|                 self.f.close()
 | |
| 
 | |
|         def catching_open(*args):
 | |
|             return FileWrapper(open(*args))
 | |
| 
 | |
|         from django.core.files import images
 | |
|         images.open = catching_open
 | |
|         try:
 | |
|             get_image_dimensions(os.path.join(os.path.dirname(__file__), "test1.png"))
 | |
|         finally:
 | |
|             del images.open
 | |
|         self.assertTrue(FileWrapper._closed)
 | |
| 
 | |
| class InconsistentGetImageDimensionsBug(unittest.TestCase):
 | |
|     """
 | |
|     Test that get_image_dimensions() works properly after various calls
 | |
|     using a file handler (#11158)
 | |
|     """
 | |
|     @unittest.skipUnless(Image, "PIL not installed")
 | |
|     def test_multiple_calls(self):
 | |
|         """
 | |
|         Multiple calls of get_image_dimensions() should return the same size.
 | |
|         """
 | |
|         from django.core.files.images import ImageFile
 | |
| 
 | |
|         img_path = os.path.join(os.path.dirname(__file__), "test.png")
 | |
|         image = ImageFile(open(img_path, 'rb'))
 | |
|         image_pil = Image.open(img_path)
 | |
|         size_1, size_2 = get_image_dimensions(image), get_image_dimensions(image)
 | |
|         self.assertEqual(image_pil.size, size_1)
 | |
|         self.assertEqual(size_1, size_2)
 | |
| 
 | |
| class ContentFileTestCase(unittest.TestCase):
 | |
| 
 | |
|     def test_content_file_default_name(self):
 | |
|         self.assertEqual(ContentFile(b"content").name, None)
 | |
| 
 | |
|     def test_content_file_custom_name(self):
 | |
|         """
 | |
|         Test that the constructor of ContentFile accepts 'name' (#16590).
 | |
|         """
 | |
|         name = "I can have a name too!"
 | |
|         self.assertEqual(ContentFile(b"content", name=name).name, name)
 | |
| 
 | |
|     def test_content_file_input_type(self):
 | |
|         """
 | |
|         Test that ContentFile can accept both bytes and unicode and that the
 | |
|         retrieved content is of the same type.
 | |
|         """
 | |
|         self.assertTrue(isinstance(ContentFile(b"content").read(), bytes))
 | |
|         self.assertTrue(isinstance(ContentFile("español").read(), six.text_type))
 | |
| 
 | |
| class NoNameFileTestCase(unittest.TestCase):
 | |
|     """
 | |
|     Other examples of unnamed files may be tempfile.SpooledTemporaryFile or
 | |
|     urllib.urlopen()
 | |
|     """
 | |
|     def test_noname_file_default_name(self):
 | |
|         self.assertEqual(File(BytesIO(b'A file with no name')).name, None)
 | |
| 
 | |
|     def test_noname_file_get_size(self):
 | |
|         self.assertEqual(File(BytesIO(b'A file with no name')).size, 19)
 | |
| 
 | |
| class FileLikeObjectTestCase(LiveServerBase):
 | |
|     """
 | |
|     Test file-like objects (#15644).
 | |
|     """
 | |
|     def setUp(self):
 | |
|         self.temp_dir = tempfile.mkdtemp()
 | |
|         self.storage = FileSystemStorage(location=self.temp_dir)
 | |
| 
 | |
|     def tearDown(self):
 | |
|         shutil.rmtree(self.temp_dir)
 | |
| 
 | |
|     def test_urllib2_urlopen(self):
 | |
|         """
 | |
|         Test the File storage API with a file like object coming from urllib2.urlopen()
 | |
|         """
 | |
| 
 | |
|         file_like_object = self.urlopen('/example_view/')
 | |
|         f = File(file_like_object)
 | |
|         stored_filename = self.storage.save("remote_file.html", f)
 | |
| 
 | |
|         stored_file = self.storage.open(stored_filename)
 | |
|         remote_file = self.urlopen('/example_view/')
 | |
| 
 | |
|         self.assertEqual(stored_file.read(), remote_file.read())
 |