mirror of https://github.com/django/django.git
144 lines
4.3 KiB
Python
144 lines
4.3 KiB
Python
# coding: utf-8
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"""
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Tests for the file storage mechanism
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>>> import tempfile
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>>> from django.core.files.storage import FileSystemStorage
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>>> from django.core.files.base import ContentFile
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# Set up a unique temporary directory
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>>> import os
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>>> temp_dir = tempfile.mktemp()
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>>> os.makedirs(temp_dir)
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>>> temp_storage = FileSystemStorage(location=temp_dir)
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# Standard file access options are available, and work as expected.
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>>> temp_storage.exists('storage_test')
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False
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>>> file = temp_storage.open('storage_test', 'w')
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>>> file.write('storage contents')
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>>> file.close()
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>>> temp_storage.exists('storage_test')
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True
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>>> file = temp_storage.open('storage_test', 'r')
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>>> file.read()
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'storage contents'
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>>> file.close()
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>>> temp_storage.delete('storage_test')
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>>> temp_storage.exists('storage_test')
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False
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# Files can only be accessed if they're below the specified location.
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>>> temp_storage.exists('..')
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Traceback (most recent call last):
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...
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SuspiciousOperation: Attempted access to '..' denied.
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>>> temp_storage.open('/etc/passwd')
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Traceback (most recent call last):
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...
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SuspiciousOperation: Attempted access to '/etc/passwd' denied.
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# Custom storage systems can be created to customize behavior
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>>> class CustomStorage(FileSystemStorage):
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... def get_available_name(self, name):
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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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...
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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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>>> custom_storage = CustomStorage(temp_dir)
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>>> first = custom_storage.save('custom_storage', ContentFile('custom contents'))
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>>> first
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u'custom_storage'
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>>> second = custom_storage.save('custom_storage', ContentFile('more contents'))
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>>> second
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u'custom_storage.2'
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>>> custom_storage.delete(first)
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>>> custom_storage.delete(second)
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# Cleanup the temp dir
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>>> os.rmdir(temp_dir)
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# Regression test for #8156: files with unicode names I can't quite figure out the
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# encoding situation between doctest and this file, but the actual repr doesn't
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# matter; it just shouldn't return a unicode object.
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>>> from django.core.files.uploadedfile import UploadedFile
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>>> uf = UploadedFile(name=u'¿Cómo?',content_type='text')
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>>> uf.__repr__()
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'<UploadedFile: ... (text)>'
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"""
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# Tests for a race condition on file saving (#4948).
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# This is written in such a way that it'll always pass on platforms
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# without threading.
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import os
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import time
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import shutil
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import tempfile
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from unittest import TestCase
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from django.conf import settings
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from django.core.files.base import ContentFile
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from django.core.files.storage import FileSystemStorage
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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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class SlowFile(ContentFile):
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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(TestCase):
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def setUp(self):
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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'])
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def tearDown(self):
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shutil.rmtree(self.storage_dir)
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def save_file(self, name):
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name = self.storage.save(name, SlowFile("Data"))
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def test_race_condition(self):
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self.thread.start()
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name = self.save_file('conflict')
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self.thread.join()
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self.assert_(self.storage.exists('conflict'))
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self.assert_(self.storage.exists('conflict_'))
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self.storage.delete('conflict')
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self.storage.delete('conflict_')
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class FileStoragePermissions(TestCase):
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def setUp(self):
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self.old_perms = settings.FILE_UPLOAD_PERMISSIONS
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settings.FILE_UPLOAD_PERMISSIONS = 0666
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self.storage_dir = tempfile.mkdtemp()
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self.storage = FileSystemStorage(self.storage_dir)
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def tearDown(self):
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settings.FILE_UPLOAD_PERMISSIONS = self.old_perms
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shutil.rmtree(self.storage_dir)
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def test_file_upload_permissions(self):
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name = self.storage.save("the_file", ContentFile("data"))
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actual_mode = os.stat(self.storage.path(name))[0] & 0777
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self.assertEqual(actual_mode, 0666)
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