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import mimetypes
import unittest
from os import path
from django.conf.urls.static import static
from django.core.exceptions import ImproperlyConfigured
from django.http import FileResponse, HttpResponseNotModified
from django.test import SimpleTestCase, override_settings
from django.utils.http import http_date
from django.views.static import was_modified_since
from .. import urls
from ..urls import media_dir
@override_settings(DEBUG=True, ROOT_URLCONF='view_tests.urls')
class StaticTests(SimpleTestCase):
"""Tests django views in django/views/static.py"""
prefix = 'site_media'
def test_serve(self):
"The static view can serve static media"
media_files = ['file.txt', 'file.txt.gz']
for filename in media_files:
response = self.client.get('/%s/%s' % (self.prefix, filename))
response_content = b''.join(response)
file_path = path.join(media_dir, filename)
with open(file_path, 'rb') as fp:
self.assertEqual(fp.read(), response_content)
self.assertEqual(len(response_content), int(response['Content-Length']))
self.assertEqual(mimetypes.guess_type(file_path)[1], response.get('Content-Encoding', None))
def test_chunked(self):
"The static view should stream files in chunks to avoid large memory usage"
response = self.client.get('/%s/%s' % (self.prefix, 'long-line.txt'))
first_chunk = next(response.streaming_content)
self.assertEqual(len(first_chunk), FileResponse.block_size)
second_chunk = next(response.streaming_content)
response.close()
# strip() to prevent OS line endings from causing differences
self.assertEqual(len(second_chunk.strip()), 1449)
def test_unknown_mime_type(self):
response = self.client.get('/%s/file.unknown' % self.prefix)
self.assertEqual('application/octet-stream', response['Content-Type'])
response.close()
def test_copes_with_empty_path_component(self):
file_name = 'file.txt'
response = self.client.get('/%s//%s' % (self.prefix, file_name))
response_content = b''.join(response)
with open(path.join(media_dir, file_name), 'rb') as fp:
self.assertEqual(fp.read(), response_content)
def test_is_modified_since(self):
file_name = 'file.txt'
response = self.client.get(
'/%s/%s' % (self.prefix, file_name),
HTTP_IF_MODIFIED_SINCE='Thu, 1 Jan 1970 00:00:00 GMT'
)
response_content = b''.join(response)
with open(path.join(media_dir, file_name), 'rb') as fp:
self.assertEqual(fp.read(), response_content)
def test_not_modified_since(self):
file_name = 'file.txt'
response = self.client.get(
'/%s/%s' % (self.prefix, file_name),
HTTP_IF_MODIFIED_SINCE='Mon, 18 Jan 2038 05:14:07 GMT'
# This is 24h before max Unix time. Remember to fix Django and
# update this test well before 2038 :)
)
self.assertIsInstance(response, HttpResponseNotModified)
def test_invalid_if_modified_since(self):
"""Handle bogus If-Modified-Since values gracefully
Assume that a file is modified since an invalid timestamp as per RFC
2616, section 14.25.
"""
file_name = 'file.txt'
invalid_date = 'Mon, 28 May 999999999999 28:25:26 GMT'
response = self.client.get('/%s/%s' % (self.prefix, file_name),
HTTP_IF_MODIFIED_SINCE=invalid_date)
response_content = b''.join(response)
with open(path.join(media_dir, file_name), 'rb') as fp:
self.assertEqual(fp.read(), response_content)
self.assertEqual(len(response_content), int(response['Content-Length']))
def test_invalid_if_modified_since2(self):
"""Handle even more bogus If-Modified-Since values gracefully
Assume that a file is modified since an invalid timestamp as per RFC
2616, section 14.25.
"""
file_name = 'file.txt'
invalid_date = ': 1291108438, Wed, 20 Oct 2010 14:05:00 GMT'
response = self.client.get('/%s/%s' % (self.prefix, file_name),
HTTP_IF_MODIFIED_SINCE=invalid_date)
response_content = b''.join(response)
with open(path.join(media_dir, file_name), 'rb') as fp:
self.assertEqual(fp.read(), response_content)
self.assertEqual(len(response_content), int(response['Content-Length']))
def test_404(self):
response = self.client.get('/%s/nonexistent_resource' % self.prefix)
self.assertEqual(404, response.status_code)
def test_index(self):
response = self.client.get('/%s/' % self.prefix)
self.assertContains(response, 'Index of /')
class StaticHelperTest(StaticTests):
"""
Test case to make sure the static URL pattern helper works as expected
"""
def setUp(self):
super().setUp()
self._old_views_urlpatterns = urls.urlpatterns[:]
urls.urlpatterns += static('/media/', document_root=media_dir)
def tearDown(self):
super().tearDown()
urls.urlpatterns = self._old_views_urlpatterns
def test_prefix(self):
self.assertEqual(static('test')[0].regex.pattern, '^test(?P<path>.*)$')
@override_settings(DEBUG=False)
def test_debug_off(self):
"""No URLs are served if DEBUG=False."""
self.assertEqual(static('test'), [])
def test_empty_prefix(self):
with self.assertRaisesMessage(ImproperlyConfigured, 'Empty static prefix not permitted'):
static('')
def test_special_prefix(self):
"""No URLs are served if prefix contains '://'."""
self.assertEqual(static('http://'), [])
class StaticUtilsTests(unittest.TestCase):
def test_was_modified_since_fp(self):
"""
A floating point mtime does not disturb was_modified_since (#18675).
"""
mtime = 1343416141.107817
header = http_date(mtime)
self.assertFalse(was_modified_since(header, mtime))
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