mirror of
https://github.com/django/django.git
synced 2025-10-31 09:41:08 +00:00
349 lines
13 KiB
Python
349 lines
13 KiB
Python
import os
|
|
from datetime import datetime
|
|
|
|
from django.core.serializers.json import DjangoJSONEncoder
|
|
from django.test import SimpleTestCase
|
|
from django.utils.functional import lazystr
|
|
from django.utils.html import (
|
|
conditional_escape,
|
|
escape,
|
|
escapejs,
|
|
format_html,
|
|
html_safe,
|
|
json_script,
|
|
linebreaks,
|
|
smart_urlquote,
|
|
strip_spaces_between_tags,
|
|
strip_tags,
|
|
urlize,
|
|
)
|
|
from django.utils.safestring import mark_safe
|
|
|
|
|
|
class TestUtilsHtml(SimpleTestCase):
|
|
def check_output(self, function, value, output=None):
|
|
"""
|
|
function(value) equals output. If output is None, function(value)
|
|
equals value.
|
|
"""
|
|
if output is None:
|
|
output = value
|
|
self.assertEqual(function(value), output)
|
|
|
|
def test_escape(self):
|
|
items = (
|
|
("&", "&"),
|
|
("<", "<"),
|
|
(">", ">"),
|
|
('"', """),
|
|
("'", "'"),
|
|
)
|
|
# Substitution patterns for testing the above items.
|
|
patterns = ("%s", "asdf%sfdsa", "%s1", "1%sb")
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
for pattern in patterns:
|
|
with self.subTest(value=value, output=output, pattern=pattern):
|
|
self.check_output(escape, pattern % value, pattern % output)
|
|
self.check_output(
|
|
escape, lazystr(pattern % value), pattern % output
|
|
)
|
|
# Check repeated values.
|
|
self.check_output(escape, value * 2, output * 2)
|
|
# Verify it doesn't double replace &.
|
|
self.check_output(escape, "<&", "<&")
|
|
|
|
def test_format_html(self):
|
|
self.assertEqual(
|
|
format_html(
|
|
"{} {} {third} {fourth}",
|
|
"< Dangerous >",
|
|
mark_safe("<b>safe</b>"),
|
|
third="< dangerous again",
|
|
fourth=mark_safe("<i>safe again</i>"),
|
|
),
|
|
"< Dangerous > <b>safe</b> < dangerous again <i>safe again</i>",
|
|
)
|
|
|
|
def test_linebreaks(self):
|
|
items = (
|
|
("para1\n\npara2\r\rpara3", "<p>para1</p>\n\n<p>para2</p>\n\n<p>para3</p>"),
|
|
(
|
|
"para1\nsub1\rsub2\n\npara2",
|
|
"<p>para1<br>sub1<br>sub2</p>\n\n<p>para2</p>",
|
|
),
|
|
(
|
|
"para1\r\n\r\npara2\rsub1\r\rpara4",
|
|
"<p>para1</p>\n\n<p>para2<br>sub1</p>\n\n<p>para4</p>",
|
|
),
|
|
("para1\tmore\n\npara2", "<p>para1\tmore</p>\n\n<p>para2</p>"),
|
|
)
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
self.check_output(linebreaks, value, output)
|
|
self.check_output(linebreaks, lazystr(value), output)
|
|
|
|
def test_strip_tags(self):
|
|
items = (
|
|
(
|
|
"<p>See: 'é is an apostrophe followed by e acute</p>",
|
|
"See: 'é is an apostrophe followed by e acute",
|
|
),
|
|
(
|
|
"<p>See: 'é is an apostrophe followed by e acute</p>",
|
|
"See: 'é is an apostrophe followed by e acute",
|
|
),
|
|
("<adf>a", "a"),
|
|
("</adf>a", "a"),
|
|
("<asdf><asdf>e", "e"),
|
|
("hi, <f x", "hi, <f x"),
|
|
("234<235, right?", "234<235, right?"),
|
|
("a4<a5 right?", "a4<a5 right?"),
|
|
("b7>b2!", "b7>b2!"),
|
|
("</fe", "</fe"),
|
|
("<x>b<y>", "b"),
|
|
("a<p onclick=\"alert('<test>')\">b</p>c", "abc"),
|
|
("a<p a >b</p>c", "abc"),
|
|
("d<a:b c:d>e</p>f", "def"),
|
|
('<strong>foo</strong><a href="http://example.com">bar</a>', "foobar"),
|
|
# caused infinite loop on Pythons not patched with
|
|
# https://bugs.python.org/issue20288
|
|
("&gotcha&#;<>", "&gotcha&#;<>"),
|
|
("<sc<!-- -->ript>test<<!-- -->/script>", "ript>test"),
|
|
("<script>alert()</script>&h", "alert()h"),
|
|
("><!" + ("&" * 16000) + "D", "><!" + ("&" * 16000) + "D"),
|
|
("X<<<<br>br>br>br>X", "XX"),
|
|
)
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
self.check_output(strip_tags, value, output)
|
|
self.check_output(strip_tags, lazystr(value), output)
|
|
|
|
def test_strip_tags_files(self):
|
|
# Test with more lengthy content (also catching performance regressions)
|
|
for filename in ("strip_tags1.html", "strip_tags2.txt"):
|
|
with self.subTest(filename=filename):
|
|
path = os.path.join(os.path.dirname(__file__), "files", filename)
|
|
with open(path) as fp:
|
|
content = fp.read()
|
|
start = datetime.now()
|
|
stripped = strip_tags(content)
|
|
elapsed = datetime.now() - start
|
|
self.assertEqual(elapsed.seconds, 0)
|
|
self.assertIn("Test string that has not been stripped.", stripped)
|
|
self.assertNotIn("<", stripped)
|
|
|
|
def test_strip_spaces_between_tags(self):
|
|
# Strings that should come out untouched.
|
|
items = (" <adf>", "<adf> ", " </adf> ", " <f> x</f>")
|
|
for value in items:
|
|
with self.subTest(value=value):
|
|
self.check_output(strip_spaces_between_tags, value)
|
|
self.check_output(strip_spaces_between_tags, lazystr(value))
|
|
|
|
# Strings that have spaces to strip.
|
|
items = (
|
|
("<d> </d>", "<d></d>"),
|
|
("<p>hello </p>\n<p> world</p>", "<p>hello </p><p> world</p>"),
|
|
("\n<p>\t</p>\n<p> </p>\n", "\n<p></p><p></p>\n"),
|
|
)
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
self.check_output(strip_spaces_between_tags, value, output)
|
|
self.check_output(strip_spaces_between_tags, lazystr(value), output)
|
|
|
|
def test_escapejs(self):
|
|
items = (
|
|
(
|
|
"\"double quotes\" and 'single quotes'",
|
|
"\\u0022double quotes\\u0022 and \\u0027single quotes\\u0027",
|
|
),
|
|
(r"\ : backslashes, too", "\\u005C : backslashes, too"),
|
|
(
|
|
"and lots of whitespace: \r\n\t\v\f\b",
|
|
"and lots of whitespace: \\u000D\\u000A\\u0009\\u000B\\u000C\\u0008",
|
|
),
|
|
(
|
|
r"<script>and this</script>",
|
|
"\\u003Cscript\\u003Eand this\\u003C/script\\u003E",
|
|
),
|
|
(
|
|
"paragraph separator:\u2029and line separator:\u2028",
|
|
"paragraph separator:\\u2029and line separator:\\u2028",
|
|
),
|
|
("`", "\\u0060"),
|
|
)
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
self.check_output(escapejs, value, output)
|
|
self.check_output(escapejs, lazystr(value), output)
|
|
|
|
def test_json_script(self):
|
|
tests = (
|
|
# "<", ">" and "&" are quoted inside JSON strings
|
|
(
|
|
(
|
|
"&<>",
|
|
'<script id="test_id" type="application/json">'
|
|
'"\\u0026\\u003C\\u003E"</script>',
|
|
)
|
|
),
|
|
# "<", ">" and "&" are quoted inside JSON objects
|
|
(
|
|
{"a": "<script>test&ing</script>"},
|
|
'<script id="test_id" type="application/json">'
|
|
'{"a": "\\u003Cscript\\u003Etest\\u0026ing\\u003C/script\\u003E"}'
|
|
"</script>",
|
|
),
|
|
# Lazy strings are quoted
|
|
(
|
|
lazystr("&<>"),
|
|
'<script id="test_id" type="application/json">"\\u0026\\u003C\\u003E"'
|
|
"</script>",
|
|
),
|
|
(
|
|
{"a": lazystr("<script>test&ing</script>")},
|
|
'<script id="test_id" type="application/json">'
|
|
'{"a": "\\u003Cscript\\u003Etest\\u0026ing\\u003C/script\\u003E"}'
|
|
"</script>",
|
|
),
|
|
)
|
|
for arg, expected in tests:
|
|
with self.subTest(arg=arg):
|
|
self.assertEqual(json_script(arg, "test_id"), expected)
|
|
|
|
def test_json_script_custom_encoder(self):
|
|
class CustomDjangoJSONEncoder(DjangoJSONEncoder):
|
|
def encode(self, o):
|
|
return '{"hello": "world"}'
|
|
|
|
self.assertHTMLEqual(
|
|
json_script({}, encoder=CustomDjangoJSONEncoder),
|
|
'<script type="application/json">{"hello": "world"}</script>',
|
|
)
|
|
|
|
def test_json_script_without_id(self):
|
|
self.assertHTMLEqual(
|
|
json_script({"key": "value"}),
|
|
'<script type="application/json">{"key": "value"}</script>',
|
|
)
|
|
|
|
def test_smart_urlquote(self):
|
|
items = (
|
|
("http://öäü.com/", "http://xn--4ca9at.com/"),
|
|
("http://öäü.com/öäü/", "http://xn--4ca9at.com/%C3%B6%C3%A4%C3%BC/"),
|
|
# Everything unsafe is quoted, !*'();:@&=+$,/?#[]~ is considered
|
|
# safe as per RFC.
|
|
(
|
|
"http://example.com/path/öäü/",
|
|
"http://example.com/path/%C3%B6%C3%A4%C3%BC/",
|
|
),
|
|
("http://example.com/%C3%B6/ä/", "http://example.com/%C3%B6/%C3%A4/"),
|
|
("http://example.com/?x=1&y=2+3&z=", "http://example.com/?x=1&y=2+3&z="),
|
|
("http://example.com/?x=<>\"'", "http://example.com/?x=%3C%3E%22%27"),
|
|
(
|
|
"http://example.com/?q=http://example.com/?x=1%26q=django",
|
|
"http://example.com/?q=http%3A%2F%2Fexample.com%2F%3Fx%3D1%26q%3D"
|
|
"django",
|
|
),
|
|
(
|
|
"http://example.com/?q=http%3A%2F%2Fexample.com%2F%3Fx%3D1%26q%3D"
|
|
"django",
|
|
"http://example.com/?q=http%3A%2F%2Fexample.com%2F%3Fx%3D1%26q%3D"
|
|
"django",
|
|
),
|
|
("http://.www.f oo.bar/", "http://.www.f%20oo.bar/"),
|
|
)
|
|
# IDNs are properly quoted
|
|
for value, output in items:
|
|
with self.subTest(value=value, output=output):
|
|
self.assertEqual(smart_urlquote(value), output)
|
|
|
|
def test_conditional_escape(self):
|
|
s = "<h1>interop</h1>"
|
|
self.assertEqual(conditional_escape(s), "<h1>interop</h1>")
|
|
self.assertEqual(conditional_escape(mark_safe(s)), s)
|
|
self.assertEqual(conditional_escape(lazystr(mark_safe(s))), s)
|
|
|
|
def test_html_safe(self):
|
|
@html_safe
|
|
class HtmlClass:
|
|
def __str__(self):
|
|
return "<h1>I'm a html class!</h1>"
|
|
|
|
html_obj = HtmlClass()
|
|
self.assertTrue(hasattr(HtmlClass, "__html__"))
|
|
self.assertTrue(hasattr(html_obj, "__html__"))
|
|
self.assertEqual(str(html_obj), html_obj.__html__())
|
|
|
|
def test_html_safe_subclass(self):
|
|
class BaseClass:
|
|
def __html__(self):
|
|
# defines __html__ on its own
|
|
return "some html content"
|
|
|
|
def __str__(self):
|
|
return "some non html content"
|
|
|
|
@html_safe
|
|
class Subclass(BaseClass):
|
|
def __str__(self):
|
|
# overrides __str__ and is marked as html_safe
|
|
return "some html safe content"
|
|
|
|
subclass_obj = Subclass()
|
|
self.assertEqual(str(subclass_obj), subclass_obj.__html__())
|
|
|
|
def test_html_safe_defines_html_error(self):
|
|
msg = "can't apply @html_safe to HtmlClass because it defines __html__()."
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
|
|
@html_safe
|
|
class HtmlClass:
|
|
def __html__(self):
|
|
return "<h1>I'm a html class!</h1>"
|
|
|
|
def test_html_safe_doesnt_define_str(self):
|
|
msg = "can't apply @html_safe to HtmlClass because it doesn't define __str__()."
|
|
with self.assertRaisesMessage(ValueError, msg):
|
|
|
|
@html_safe
|
|
class HtmlClass:
|
|
pass
|
|
|
|
def test_urlize(self):
|
|
tests = (
|
|
(
|
|
"Search for google.com/?q=! and see.",
|
|
'Search for <a href="http://google.com/?q=">google.com/?q=</a>! and '
|
|
"see.",
|
|
),
|
|
(
|
|
"Search for google.com/?q=1<! and see.",
|
|
'Search for <a href="http://google.com/?q=1%3C">google.com/?q=1<'
|
|
"</a>! and see.",
|
|
),
|
|
(
|
|
lazystr("Search for google.com/?q=!"),
|
|
'Search for <a href="http://google.com/?q=">google.com/?q=</a>!',
|
|
),
|
|
("foo@example.com", '<a href="mailto:foo@example.com">foo@example.com</a>'),
|
|
)
|
|
for value, output in tests:
|
|
with self.subTest(value=value):
|
|
self.assertEqual(urlize(value), output)
|
|
|
|
def test_urlize_unchanged_inputs(self):
|
|
tests = (
|
|
("a" + "@a" * 50000) + "a", # simple_email_re catastrophic test
|
|
("a" + "." * 1000000) + "a", # trailing_punctuation catastrophic test
|
|
"foo@",
|
|
"@foo.com",
|
|
"foo@.example.com",
|
|
"foo@localhost",
|
|
"foo@localhost.",
|
|
)
|
|
for value in tests:
|
|
with self.subTest(value=value):
|
|
self.assertEqual(urlize(value), value)
|