236 lines
9.0 KiB
Python
236 lines
9.0 KiB
Python
"""
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Tests for StaticContentServer
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"""
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import copy
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import ddt
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import logging
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import unittest
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from uuid import uuid4
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from django.conf import settings
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from django.test.client import Client
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from django.test.utils import override_settings
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from xmodule.contentstore.django import contentstore
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from xmodule.modulestore.django import modulestore
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from opaque_keys.edx.locations import SlashSeparatedCourseKey
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from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
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from xmodule.modulestore.xml_importer import import_from_xml
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from contentserver.middleware import parse_range_header
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from student.models import CourseEnrollment
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log = logging.getLogger(__name__)
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TEST_DATA_CONTENTSTORE = copy.deepcopy(settings.CONTENTSTORE)
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TEST_DATA_CONTENTSTORE['DOC_STORE_CONFIG']['db'] = 'test_xcontent_%s' % uuid4().hex
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@ddt.ddt
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@override_settings(CONTENTSTORE=TEST_DATA_CONTENTSTORE)
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class ContentStoreToyCourseTest(ModuleStoreTestCase):
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"""
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Tests that use the toy course.
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"""
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def setUp(self):
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"""
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Create user and login.
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"""
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self.staff_pwd = super(ContentStoreToyCourseTest, self).setUp()
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self.staff_usr = self.user
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self.non_staff_usr, self.non_staff_pwd = self.create_non_staff_user()
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self.client = Client()
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self.contentstore = contentstore()
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self.course_key = SlashSeparatedCourseKey('edX', 'toy', '2012_Fall')
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import_from_xml(
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modulestore(), self.user.id, 'common/test/data/', ['toy'],
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static_content_store=self.contentstore, verbose=True
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)
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# A locked asset
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self.locked_asset = self.course_key.make_asset_key('asset', 'sample_static.txt')
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self.url_locked = self.locked_asset.to_deprecated_string()
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self.contentstore.set_attr(self.locked_asset, 'locked', True)
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# An unlocked asset
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self.unlocked_asset = self.course_key.make_asset_key('asset', 'another_static.txt')
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self.url_unlocked = self.unlocked_asset.to_deprecated_string()
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self.length_unlocked = self.contentstore.get_attr(self.unlocked_asset, 'length')
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def test_unlocked_asset(self):
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"""
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Test that unlocked assets are being served.
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"""
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self.client.logout()
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resp = self.client.get(self.url_unlocked)
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self.assertEqual(resp.status_code, 200) # pylint: disable=E1103
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def test_locked_asset_not_logged_in(self):
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"""
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Test that locked assets behave appropriately in case the user is not
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logged in.
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"""
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self.client.logout()
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resp = self.client.get(self.url_locked)
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self.assertEqual(resp.status_code, 403) # pylint: disable=E1103
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def test_locked_asset_not_registered(self):
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"""
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Test that locked assets behave appropriately in case user is logged in
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in but not registered for the course.
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"""
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self.client.login(username=self.non_staff_usr, password=self.non_staff_pwd)
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resp = self.client.get(self.url_locked)
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self.assertEqual(resp.status_code, 403) # pylint: disable=E1103
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def test_locked_asset_registered(self):
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"""
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Test that locked assets behave appropriately in case user is logged in
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and registered for the course.
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"""
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CourseEnrollment.enroll(self.non_staff_usr, self.course_key)
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self.assertTrue(CourseEnrollment.is_enrolled(self.non_staff_usr, self.course_key))
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self.client.login(username=self.non_staff_usr, password=self.non_staff_pwd)
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resp = self.client.get(self.url_locked)
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self.assertEqual(resp.status_code, 200) # pylint: disable=E1103
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def test_locked_asset_staff(self):
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"""
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Test that locked assets behave appropriately in case user is staff.
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"""
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self.client.login(username=self.staff_usr, password=self.staff_pwd)
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resp = self.client.get(self.url_locked)
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self.assertEqual(resp.status_code, 200) # pylint: disable=E1103
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def test_range_request_full_file(self):
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"""
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Test that a range request from byte 0 to last,
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outputs partial content status code and valid Content-Range and Content-Length.
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"""
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resp = self.client.get(self.url_unlocked, HTTP_RANGE='bytes=0-')
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self.assertEqual(resp.status_code, 206) # HTTP_206_PARTIAL_CONTENT
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self.assertEqual(
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resp['Content-Range'],
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'bytes {first}-{last}/{length}'.format(
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first=0, last=self.length_unlocked - 1,
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length=self.length_unlocked
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)
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)
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self.assertEqual(resp['Content-Length'], str(self.length_unlocked))
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def test_range_request_partial_file(self):
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"""
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Test that a range request for a partial file,
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outputs partial content status code and valid Content-Range and Content-Length.
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first_byte and last_byte are chosen to be simple but non trivial values.
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"""
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first_byte = self.length_unlocked / 4
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last_byte = self.length_unlocked / 2
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resp = self.client.get(self.url_unlocked, HTTP_RANGE='bytes={first}-{last}'.format(
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first=first_byte, last=last_byte)
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)
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self.assertEqual(resp.status_code, 206) # HTTP_206_PARTIAL_CONTENT
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self.assertEqual(resp['Content-Range'], 'bytes {first}-{last}/{length}'.format(
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first=first_byte, last=last_byte, length=self.length_unlocked))
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self.assertEqual(resp['Content-Length'], str(last_byte - first_byte + 1))
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def test_range_request_multiple_ranges(self):
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"""
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Test that multiple ranges in request outputs the full content.
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"""
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first_byte = self.length_unlocked / 4
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last_byte = self.length_unlocked / 2
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resp = self.client.get(self.url_unlocked, HTTP_RANGE='bytes={first}-{last}, -100'.format(
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first=first_byte, last=last_byte)
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)
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self.assertEqual(resp.status_code, 200)
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self.assertNotIn('Content-Range', resp)
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self.assertEqual(resp['Content-Length'], str(self.length_unlocked))
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@ddt.data(
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'bytes 0-',
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'bits=0-',
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'bytes=0',
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'bytes=one-',
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)
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def test_syntax_errors_in_range(self, header_value):
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"""
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Test that syntactically invalid Range values result in a 200 OK full content response.
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"""
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resp = self.client.get(self.url_unlocked, HTTP_RANGE=header_value)
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self.assertEqual(resp.status_code, 200)
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self.assertNotIn('Content-Range', resp)
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def test_range_request_malformed_invalid_range(self):
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"""
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Test that a range request with malformed Range (first_byte > last_byte) outputs
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416 Requested Range Not Satisfiable.
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"""
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resp = self.client.get(self.url_unlocked, HTTP_RANGE='bytes={first}-{last}'.format(
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first=(self.length_unlocked / 2), last=(self.length_unlocked / 4))
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)
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self.assertEqual(resp.status_code, 416)
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def test_range_request_malformed_out_of_bounds(self):
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"""
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Test that a range request with malformed Range (first_byte, last_byte == totalLength, offset by 1 error)
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outputs 416 Requested Range Not Satisfiable.
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"""
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resp = self.client.get(self.url_unlocked, HTTP_RANGE='bytes={first}-{last}'.format(
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first=(self.length_unlocked), last=(self.length_unlocked))
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)
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self.assertEqual(resp.status_code, 416)
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@ddt.ddt
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class ParseRangeHeaderTestCase(unittest.TestCase):
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"""
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Tests for the parse_range_header function.
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"""
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def setUp(self):
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self.content_length = 10000
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def test_bytes_unit(self):
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unit, __ = parse_range_header('bytes=100-', self.content_length)
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self.assertEqual(unit, 'bytes')
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@ddt.data(
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('bytes=100-', 1, [(100, 9999)]),
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('bytes=1000-', 1, [(1000, 9999)]),
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('bytes=100-199, 200-', 2, [(100, 199), (200, 9999)]),
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('bytes=100-199, 200-499', 2, [(100, 199), (200, 499)]),
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('bytes=-100', 1, [(9900, 9999)]),
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('bytes=-100, -200', 2, [(9900, 9999), (9800, 9999)])
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)
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@ddt.unpack
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def test_valid_syntax(self, header_value, excepted_ranges_length, expected_ranges):
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__, ranges = parse_range_header(header_value, self.content_length)
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self.assertEqual(len(ranges), excepted_ranges_length)
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self.assertEqual(ranges, expected_ranges)
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@ddt.data(
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('bytes=one-20', ValueError, 'invalid literal for int()'),
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('bytes=-one', ValueError, 'invalid literal for int()'),
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('bytes=-', ValueError, 'invalid literal for int()'),
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('bytes=--', ValueError, 'invalid literal for int()'),
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('bytes', ValueError, 'Invalid syntax'),
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('bytes=', ValueError, 'Invalid syntax'),
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('bytes=0', ValueError, 'Invalid syntax'),
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('bytes=0-10,0', ValueError, 'Invalid syntax'),
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('bytes=0=', ValueError, 'too many values to unpack'),
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)
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@ddt.unpack
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def test_invalid_syntax(self, header_value, exception_class, exception_message_regex):
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self.assertRaisesRegexp(
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exception_class, exception_message_regex, parse_range_header, header_value, self.content_length
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)
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