mirror of
https://github.com/django/django.git
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534 lines
22 KiB
Python
534 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import os
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import sys
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import unittest
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from django import template
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from django.contrib.auth.models import Group
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from django.core import urlresolvers
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from django.template import (base as template_base, loader,
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Context, RequestContext, Template, TemplateSyntaxError)
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from django.template.engine import Engine
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from django.template.loaders import app_directories, filesystem
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from django.test import RequestFactory, SimpleTestCase
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from django.test.utils import extend_sys_path, ignore_warnings, override_settings
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from django.utils.deprecation import RemovedInDjango20Warning
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from django.utils._os import upath
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TESTS_DIR = os.path.dirname(os.path.dirname(os.path.abspath(upath(__file__))))
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TEMPLATES_DIR = os.path.join(TESTS_DIR, 'templates')
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class TemplateLoaderTests(SimpleTestCase):
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def test_loaders_security(self):
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ad_loader = app_directories.Loader(Engine.get_default())
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fs_loader = filesystem.Loader(Engine.get_default())
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def test_template_sources(path, template_dirs, expected_sources):
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if isinstance(expected_sources, list):
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# Fix expected sources so they are abspathed
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expected_sources = [os.path.abspath(s) for s in expected_sources]
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# Test the two loaders (app_directores and filesystem).
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func1 = lambda p, t: list(ad_loader.get_template_sources(p, t))
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func2 = lambda p, t: list(fs_loader.get_template_sources(p, t))
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for func in (func1, func2):
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if isinstance(expected_sources, list):
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self.assertEqual(func(path, template_dirs), expected_sources)
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else:
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self.assertRaises(expected_sources, func, path, template_dirs)
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template_dirs = ['/dir1', '/dir2']
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test_template_sources('index.html', template_dirs,
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['/dir1/index.html', '/dir2/index.html'])
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test_template_sources('/etc/passwd', template_dirs, [])
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test_template_sources('etc/passwd', template_dirs,
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['/dir1/etc/passwd', '/dir2/etc/passwd'])
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test_template_sources('../etc/passwd', template_dirs, [])
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test_template_sources('../../../etc/passwd', template_dirs, [])
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test_template_sources('/dir1/index.html', template_dirs,
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['/dir1/index.html'])
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test_template_sources('../dir2/index.html', template_dirs,
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['/dir2/index.html'])
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test_template_sources('/dir1blah', template_dirs, [])
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test_template_sources('../dir1blah', template_dirs, [])
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# UTF-8 bytestrings are permitted.
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test_template_sources(b'\xc3\x85ngstr\xc3\xb6m', template_dirs,
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['/dir1/Ångström', '/dir2/Ångström'])
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# Unicode strings are permitted.
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test_template_sources('Ångström', template_dirs,
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['/dir1/Ångström', '/dir2/Ångström'])
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test_template_sources('Ångström', [b'/Stra\xc3\x9fe'], ['/Straße/Ångström'])
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test_template_sources(b'\xc3\x85ngstr\xc3\xb6m', [b'/Stra\xc3\x9fe'],
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['/Straße/Ångström'])
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# Invalid UTF-8 encoding in bytestrings is not. Should raise a
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# semi-useful error message.
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test_template_sources(b'\xc3\xc3', template_dirs, UnicodeDecodeError)
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# Case insensitive tests (for win32). Not run unless we're on
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# a case insensitive operating system.
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if os.path.normcase('/TEST') == os.path.normpath('/test'):
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template_dirs = ['/dir1', '/DIR2']
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test_template_sources('index.html', template_dirs,
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['/dir1/index.html', '/DIR2/index.html'])
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test_template_sources('/DIR1/index.HTML', template_dirs,
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['/DIR1/index.HTML'])
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'DIRS': [TEMPLATES_DIR],
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}])
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# Turn TEMPLATE_DEBUG on, so that the origin file name will be kept with
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# the compiled templates.
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@override_settings(TEMPLATE_DEBUG=True)
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def test_loader_debug_origin(self):
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load_name = 'login.html'
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# We rely on the fact the file system and app directories loaders both
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# inherit the load_template method from the base Loader class, so we
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# only need to test one of them.
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template = loader.get_template(load_name).template
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template_name = template.nodelist[0].source[0].name
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self.assertTrue(template_name.endswith(load_name),
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'Template loaded by filesystem loader has incorrect name for debug page: %s' % template_name)
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'DIRS': [TEMPLATES_DIR],
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'OPTIONS': {
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'loaders': [
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('django.template.loaders.cached.Loader', [
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'django.template.loaders.filesystem.Loader',
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]),
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],
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},
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}])
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@override_settings(TEMPLATE_DEBUG=True)
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def test_cached_loader_debug_origin(self):
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load_name = 'login.html'
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# Test the cached loader separately since it overrides load_template.
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template = loader.get_template(load_name).template
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template_name = template.nodelist[0].source[0].name
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self.assertTrue(template_name.endswith(load_name),
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'Template loaded through cached loader has incorrect name for debug page: %s' % template_name)
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template = loader.get_template(load_name).template
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template_name = template.nodelist[0].source[0].name
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self.assertTrue(template_name.endswith(load_name),
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'Cached template loaded through cached loader has incorrect name for debug page: %s' % template_name)
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@override_settings(TEMPLATE_DEBUG=True)
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def test_loader_origin(self):
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template = loader.get_template('login.html')
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self.assertEqual(template.origin.loadname, 'login.html')
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@override_settings(TEMPLATE_DEBUG=True)
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def test_string_origin(self):
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template = Template('string template')
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self.assertEqual(template.origin.source, 'string template')
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def test_debug_false_origin(self):
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template = loader.get_template('login.html')
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self.assertEqual(template.origin, None)
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# TEMPLATE_DEBUG must be true, otherwise the exception raised
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# during {% include %} processing will be suppressed.
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@override_settings(TEMPLATE_DEBUG=True)
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# Test the base loader class via the app loader. load_template
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# from base is used by all shipped loaders excepting cached,
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# which has its own test.
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'APP_DIRS': True,
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}])
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def test_include_missing_template(self):
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"""
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Tests that the correct template is identified as not existing
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when {% include %} specifies a template that does not exist.
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"""
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load_name = 'test_include_error.html'
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r = None
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try:
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tmpl = loader.select_template([load_name])
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r = tmpl.render(template.Context({}))
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except template.TemplateDoesNotExist as e:
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self.assertEqual(e.args[0], 'missing.html')
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self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
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# TEMPLATE_DEBUG must be true, otherwise the exception raised
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# during {% include %} processing will be suppressed.
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@override_settings(TEMPLATE_DEBUG=True)
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# Test the base loader class via the app loader. load_template
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# from base is used by all shipped loaders excepting cached,
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# which has its own test.
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'APP_DIRS': True,
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}])
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def test_extends_include_missing_baseloader(self):
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"""
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Tests that the correct template is identified as not existing
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when {% extends %} specifies a template that does exist, but
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that template has an {% include %} of something that does not
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exist. See #12787.
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"""
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load_name = 'test_extends_error.html'
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tmpl = loader.get_template(load_name)
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r = None
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try:
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r = tmpl.render(template.Context({}))
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except template.TemplateDoesNotExist as e:
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self.assertEqual(e.args[0], 'missing.html')
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self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'OPTIONS': {
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'loaders': [
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('django.template.loaders.cached.Loader', [
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'django.template.loaders.app_directories.Loader',
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]),
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],
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},
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}])
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@override_settings(TEMPLATE_DEBUG=True)
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def test_extends_include_missing_cachedloader(self):
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"""
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Same as test_extends_include_missing_baseloader, only tests
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behavior of the cached loader instead of base loader.
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"""
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load_name = 'test_extends_error.html'
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tmpl = loader.get_template(load_name)
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r = None
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try:
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r = tmpl.render(template.Context({}))
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except template.TemplateDoesNotExist as e:
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self.assertEqual(e.args[0], 'missing.html')
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self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
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# For the cached loader, repeat the test, to ensure the first attempt did not cache a
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# result that behaves incorrectly on subsequent attempts.
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tmpl = loader.get_template(load_name)
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try:
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tmpl.render(template.Context({}))
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except template.TemplateDoesNotExist as e:
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self.assertEqual(e.args[0], 'missing.html')
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self.assertEqual(r, None, 'Template rendering unexpectedly succeeded, produced: ->%r<-' % r)
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def test_include_template_argument(self):
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"""
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Support any render() supporting object
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"""
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ctx = Context({
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'tmpl': Template('This worked!'),
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})
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outer_tmpl = Template('{% include tmpl %}')
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output = outer_tmpl.render(ctx)
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self.assertEqual(output, 'This worked!')
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@override_settings(TEMPLATE_DEBUG=True)
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def test_include_immediate_missing(self):
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"""
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Regression test for #16417 -- {% include %} tag raises TemplateDoesNotExist at compile time if TEMPLATE_DEBUG is True
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Test that an {% include %} tag with a literal string referencing a
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template that does not exist does not raise an exception at parse
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time.
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"""
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tmpl = Template('{% include "this_does_not_exist.html" %}')
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self.assertIsInstance(tmpl, Template)
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@override_settings(TEMPLATE_DEBUG=True)
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def test_include_recursive(self):
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comments = [
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{
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'comment': 'A1',
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'children': [
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{'comment': 'B1', 'children': []},
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{'comment': 'B2', 'children': []},
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{'comment': 'B3', 'children': [
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{'comment': 'C1', 'children': []}
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]},
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]
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}
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]
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t = loader.get_template('recursive_include.html')
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self.assertEqual(
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"Recursion! A1 Recursion! B1 B2 B3 Recursion! C1",
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t.render(Context({'comments': comments})).replace(' ', '').replace('\n', ' ').strip(),
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)
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class TemplateRegressionTests(SimpleTestCase):
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def test_token_smart_split(self):
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# Regression test for #7027
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token = template_base.Token(template_base.TOKEN_BLOCK, 'sometag _("Page not found") value|yesno:_("yes,no")')
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split = token.split_contents()
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self.assertEqual(split, ["sometag", '_("Page not found")', 'value|yesno:_("yes,no")'])
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@override_settings(SETTINGS_MODULE=None, TEMPLATE_DEBUG=True)
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def test_url_reverse_no_settings_module(self):
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# Regression test for #9005
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t = Template('{% url will_not_match %}')
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c = Context()
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with self.assertRaises(urlresolvers.NoReverseMatch):
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t.render(c)
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@override_settings(
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TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'OPTIONS': {'string_if_invalid': '%s is invalid'},
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}],
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SETTINGS_MODULE='also_something',
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)
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def test_url_reverse_view_name(self):
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# Regression test for #19827
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t = Template('{% url will_not_match %}')
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c = Context()
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try:
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t.render(c)
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except urlresolvers.NoReverseMatch:
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tb = sys.exc_info()[2]
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depth = 0
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while tb.tb_next is not None:
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tb = tb.tb_next
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depth += 1
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self.assertGreater(depth, 5,
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"The traceback context was lost when reraising the traceback. See #19827")
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@override_settings(DEBUG=True, TEMPLATE_DEBUG=True)
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def test_no_wrapped_exception(self):
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"""
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The template system doesn't wrap exceptions, but annotates them.
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Refs #16770
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"""
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c = Context({"coconuts": lambda: 42 / 0})
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t = Template("{{ coconuts }}")
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with self.assertRaises(ZeroDivisionError) as cm:
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t.render(c)
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self.assertEqual(cm.exception.django_template_source[1], (0, 14))
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def test_invalid_block_suggestion(self):
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# See #7876
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try:
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Template("{% if 1 %}lala{% endblock %}{% endif %}")
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except TemplateSyntaxError as e:
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self.assertEqual(e.args[0], "Invalid block tag: 'endblock', expected 'elif', 'else' or 'endif'")
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def test_ifchanged_concurrency(self):
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# Tests for #15849
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template = Template('[0{% for x in foo %},{% with var=get_value %}{% ifchanged %}{{ var }}{% endifchanged %}{% endwith %}{% endfor %}]')
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# Using generator to mimic concurrency.
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# The generator is not passed to the 'for' loop, because it does a list(values)
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# instead, call gen.next() in the template to control the generator.
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def gen():
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yield 1
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yield 2
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# Simulate that another thread is now rendering.
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# When the IfChangeNode stores state at 'self' it stays at '3' and skip the last yielded value below.
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iter2 = iter([1, 2, 3])
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output2 = template.render(Context({'foo': range(3), 'get_value': lambda: next(iter2)}))
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self.assertEqual(output2, '[0,1,2,3]', 'Expected [0,1,2,3] in second parallel template, got {}'.format(output2))
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yield 3
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gen1 = gen()
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output1 = template.render(Context({'foo': range(3), 'get_value': lambda: next(gen1)}))
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self.assertEqual(output1, '[0,1,2,3]', 'Expected [0,1,2,3] in first template, got {}'.format(output1))
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def test_cache_regression_20130(self):
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t = Template('{% load cache %}{% cache 1 regression_20130 %}foo{% endcache %}')
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cachenode = t.nodelist[1]
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self.assertEqual(cachenode.fragment_name, 'regression_20130')
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@override_settings(CACHES={
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'default': {
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'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
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'LOCATION': 'default',
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},
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'template_fragments': {
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'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
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'LOCATION': 'fragments',
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},
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})
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def test_cache_fragment_cache(self):
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"""
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When a cache called "template_fragments" is present, the cache tag
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will use it in preference to 'default'
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"""
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t1 = Template('{% load cache %}{% cache 1 fragment %}foo{% endcache %}')
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t2 = Template('{% load cache %}{% cache 1 fragment using="default" %}bar{% endcache %}')
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ctx = Context()
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o1 = t1.render(ctx)
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o2 = t2.render(ctx)
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self.assertEqual(o1, 'foo')
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self.assertEqual(o2, 'bar')
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def test_cache_missing_backend(self):
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"""
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When a cache that doesn't exist is specified, the cache tag will
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raise a TemplateSyntaxError
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'"""
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t = Template('{% load cache %}{% cache 1 backend using="unknown" %}bar{% endcache %}')
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ctx = Context()
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with self.assertRaises(TemplateSyntaxError):
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t.render(ctx)
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def test_ifchanged_render_once(self):
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""" Test for ticket #19890. The content of ifchanged template tag was
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rendered twice."""
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template = Template('{% ifchanged %}{% cycle "1st time" "2nd time" %}{% endifchanged %}')
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output = template.render(Context({}))
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self.assertEqual(output, '1st time')
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def test_super_errors(self):
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"""
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Test behavior of the raise errors into included blocks.
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See #18169
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"""
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t = loader.get_template('included_content.html')
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with self.assertRaises(urlresolvers.NoReverseMatch):
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t.render(Context({}))
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def test_debug_tag_non_ascii(self):
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"""
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Test non-ASCII model representation in debug output (#23060).
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"""
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Group.objects.create(name="清風")
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c1 = Context({"objs": Group.objects.all()})
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t1 = Template('{% debug %}')
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self.assertIn("清風", t1.render(c1))
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class TemplateTagLoading(SimpleTestCase):
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def setUp(self):
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self.egg_dir = '%s/eggs' % os.path.dirname(upath(__file__))
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def test_load_error(self):
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ttext = "{% load broken_tag %}"
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self.assertRaises(template.TemplateSyntaxError, template.Template, ttext)
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try:
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template.Template(ttext)
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except template.TemplateSyntaxError as e:
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self.assertIn('ImportError', e.args[0])
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self.assertIn('Xtemplate', e.args[0])
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def test_load_error_egg(self):
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ttext = "{% load broken_egg %}"
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egg_name = '%s/tagsegg.egg' % self.egg_dir
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with extend_sys_path(egg_name):
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with self.assertRaises(template.TemplateSyntaxError):
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with self.settings(INSTALLED_APPS=['tagsegg']):
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template.Template(ttext)
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try:
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with self.settings(INSTALLED_APPS=['tagsegg']):
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template.Template(ttext)
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except template.TemplateSyntaxError as e:
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self.assertIn('ImportError', e.args[0])
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self.assertIn('Xtemplate', e.args[0])
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def test_load_working_egg(self):
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ttext = "{% load working_egg %}"
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egg_name = '%s/tagsegg.egg' % self.egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=['tagsegg']):
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template.Template(ttext)
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class RequestContextTests(unittest.TestCase):
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def setUp(self):
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self.fake_request = RequestFactory().get('/')
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@override_settings(TEMPLATES=[{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
|
|
'OPTIONS': {
|
|
'loaders': [
|
|
('django.template.loaders.locmem.Loader', {
|
|
'child': '{{ var|default:"none" }}',
|
|
}),
|
|
],
|
|
},
|
|
}])
|
|
def test_include_only(self):
|
|
"""
|
|
Regression test for #15721, ``{% include %}`` and ``RequestContext``
|
|
not playing together nicely.
|
|
"""
|
|
ctx = RequestContext(self.fake_request, {'var': 'parent'})
|
|
self.assertEqual(
|
|
template.Template('{% include "child" %}').render(ctx),
|
|
'parent'
|
|
)
|
|
self.assertEqual(
|
|
template.Template('{% include "child" only %}').render(ctx),
|
|
'none'
|
|
)
|
|
|
|
def test_stack_size(self):
|
|
"""
|
|
Regression test for #7116, Optimize RequetsContext construction
|
|
"""
|
|
ctx = RequestContext(self.fake_request, {})
|
|
# The stack should now contain 3 items:
|
|
# [builtins, supplied context, context processor]
|
|
self.assertEqual(len(ctx.dicts), 3)
|
|
|
|
def test_context_comparable(self):
|
|
# Create an engine without any context processors.
|
|
engine = Engine()
|
|
|
|
test_data = {'x': 'y', 'v': 'z', 'd': {'o': object, 'a': 'b'}}
|
|
|
|
# test comparing RequestContext to prevent problems if somebody
|
|
# adds __eq__ in the future
|
|
request = RequestFactory().get('/')
|
|
|
|
self.assertEqual(
|
|
RequestContext(request, dict_=test_data, engine=engine),
|
|
RequestContext(request, dict_=test_data, engine=engine))
|
|
|
|
|
|
@ignore_warnings(category=RemovedInDjango20Warning)
|
|
class SSITests(SimpleTestCase):
|
|
def setUp(self):
|
|
self.this_dir = os.path.dirname(os.path.abspath(upath(__file__)))
|
|
self.ssi_dir = os.path.join(self.this_dir, "templates", "first")
|
|
self.engine = Engine(allowed_include_roots=(self.ssi_dir,))
|
|
|
|
def render_ssi(self, path):
|
|
# the path must exist for the test to be reliable
|
|
self.assertTrue(os.path.exists(path))
|
|
return self.engine.from_string('{%% ssi "%s" %%}' % path).render(Context({}))
|
|
|
|
def test_allowed_paths(self):
|
|
acceptable_path = os.path.join(self.ssi_dir, "..", "first", "test.html")
|
|
self.assertEqual(self.render_ssi(acceptable_path), 'First template\n')
|
|
|
|
def test_relative_include_exploit(self):
|
|
"""
|
|
May not bypass allowed_include_roots with relative paths
|
|
|
|
e.g. if allowed_include_roots = ("/var/www",), it should not be
|
|
possible to do {% ssi "/var/www/../../etc/passwd" %}
|
|
"""
|
|
disallowed_paths = [
|
|
os.path.join(self.ssi_dir, "..", "ssi_include.html"),
|
|
os.path.join(self.ssi_dir, "..", "second", "test.html"),
|
|
]
|
|
for disallowed_path in disallowed_paths:
|
|
self.assertEqual(self.render_ssi(disallowed_path), '')
|