mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-14 11:53:49 +01:00
6f18812bb0
The stubs have some issues so this has some generous cast and ignores in it, but it is better than not having stubs. Note that confusing that Element is a function which creates _Element instances (and similarly for Comment).
558 lines
20 KiB
Python
558 lines
20 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
|
||
#
|
||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
# you may not use this file except in compliance with the License.
|
||
# You may obtain a copy of the License at
|
||
#
|
||
# http://www.apache.org/licenses/LICENSE-2.0
|
||
#
|
||
# Unless required by applicable law or agreed to in writing, software
|
||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
# See the License for the specific language governing permissions and
|
||
# limitations under the License.
|
||
|
||
from synapse.media.preview_html import (
|
||
_get_html_media_encodings,
|
||
decode_body,
|
||
parse_html_to_open_graph,
|
||
summarize_paragraphs,
|
||
)
|
||
|
||
from tests import unittest
|
||
|
||
try:
|
||
import lxml
|
||
except ImportError:
|
||
lxml = None # type: ignore[assignment]
|
||
|
||
|
||
class SummarizeTestCase(unittest.TestCase):
|
||
if not lxml:
|
||
skip = "url preview feature requires lxml"
|
||
|
||
def test_long_summarize(self) -> None:
|
||
example_paras = [
|
||
"""Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:
|
||
Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in
|
||
Troms county, Norway. The administrative centre of the municipality is
|
||
the city of Tromsø. Outside of Norway, Tromso and Tromsö are
|
||
alternative spellings of the city.Tromsø is considered the northernmost
|
||
city in the world with a population above 50,000. The most populous town
|
||
north of it is Alta, Norway, with a population of 14,272 (2013).""",
|
||
"""Tromsø lies in Northern Norway. The municipality has a population of
|
||
(2015) 72,066, but with an annual influx of students it has over 75,000
|
||
most of the year. It is the largest urban area in Northern Norway and the
|
||
third largest north of the Arctic Circle (following Murmansk and Norilsk).
|
||
Most of Tromsø, including the city centre, is located on the island of
|
||
Tromsøya, 350 kilometres (217 mi) north of the Arctic Circle. In 2012,
|
||
Tromsøya had a population of 36,088. Substantial parts of the urban area
|
||
are also situated on the mainland to the east, and on parts of Kvaløya—a
|
||
large island to the west. Tromsøya is connected to the mainland by the Tromsø
|
||
Bridge and the Tromsøysund Tunnel, and to the island of Kvaløya by the
|
||
Sandnessund Bridge. Tromsø Airport connects the city to many destinations
|
||
in Europe. The city is warmer than most other places located on the same
|
||
latitude, due to the warming effect of the Gulf Stream.""",
|
||
"""The city centre of Tromsø contains the highest number of old wooden
|
||
houses in Northern Norway, the oldest house dating from 1789. The Arctic
|
||
Cathedral, a modern church from 1965, is probably the most famous landmark
|
||
in Tromsø. The city is a cultural centre for its region, with several
|
||
festivals taking place in the summer. Some of Norway's best-known
|
||
musicians, Torbjørn Brundtland and Svein Berge of the electronica duo
|
||
Röyksopp and Lene Marlin grew up and started their careers in Tromsø.
|
||
Noted electronic musician Geir Jenssen also hails from Tromsø.""",
|
||
]
|
||
|
||
desc = summarize_paragraphs(example_paras, min_size=200, max_size=500)
|
||
|
||
self.assertEqual(
|
||
desc,
|
||
"Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:"
|
||
" Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in"
|
||
" Troms county, Norway. The administrative centre of the municipality is"
|
||
" the city of Tromsø. Outside of Norway, Tromso and Tromsö are"
|
||
" alternative spellings of the city.Tromsø is considered the northernmost"
|
||
" city in the world with a population above 50,000. The most populous town"
|
||
" north of it is Alta, Norway, with a population of 14,272 (2013).",
|
||
)
|
||
|
||
desc = summarize_paragraphs(example_paras[1:], min_size=200, max_size=500)
|
||
|
||
self.assertEqual(
|
||
desc,
|
||
"Tromsø lies in Northern Norway. The municipality has a population of"
|
||
" (2015) 72,066, but with an annual influx of students it has over 75,000"
|
||
" most of the year. It is the largest urban area in Northern Norway and the"
|
||
" third largest north of the Arctic Circle (following Murmansk and Norilsk)."
|
||
" Most of Tromsø, including the city centre, is located on the island of"
|
||
" Tromsøya, 350 kilometres (217 mi) north of the Arctic Circle. In 2012,"
|
||
" Tromsøya had a population of 36,088. Substantial parts of the urban…",
|
||
)
|
||
|
||
def test_short_summarize(self) -> None:
|
||
example_paras = [
|
||
"Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:"
|
||
" Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in"
|
||
" Troms county, Norway.",
|
||
"Tromsø lies in Northern Norway. The municipality has a population of"
|
||
" (2015) 72,066, but with an annual influx of students it has over 75,000"
|
||
" most of the year.",
|
||
"The city centre of Tromsø contains the highest number of old wooden"
|
||
" houses in Northern Norway, the oldest house dating from 1789. The Arctic"
|
||
" Cathedral, a modern church from 1965, is probably the most famous landmark"
|
||
" in Tromsø.",
|
||
]
|
||
|
||
desc = summarize_paragraphs(example_paras, min_size=200, max_size=500)
|
||
|
||
self.assertEqual(
|
||
desc,
|
||
"Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:"
|
||
" Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in"
|
||
" Troms county, Norway.\n"
|
||
"\n"
|
||
"Tromsø lies in Northern Norway. The municipality has a population of"
|
||
" (2015) 72,066, but with an annual influx of students it has over 75,000"
|
||
" most of the year.",
|
||
)
|
||
|
||
def test_small_then_large_summarize(self) -> None:
|
||
example_paras = [
|
||
"Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:"
|
||
" Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in"
|
||
" Troms county, Norway.",
|
||
"Tromsø lies in Northern Norway. The municipality has a population of"
|
||
" (2015) 72,066, but with an annual influx of students it has over 75,000"
|
||
" most of the year."
|
||
" The city centre of Tromsø contains the highest number of old wooden"
|
||
" houses in Northern Norway, the oldest house dating from 1789. The Arctic"
|
||
" Cathedral, a modern church from 1965, is probably the most famous landmark"
|
||
" in Tromsø.",
|
||
]
|
||
|
||
desc = summarize_paragraphs(example_paras, min_size=200, max_size=500)
|
||
self.assertEqual(
|
||
desc,
|
||
"Tromsø (Norwegian pronunciation: [ˈtrʊmsœ] ( listen); Northern Sami:"
|
||
" Romsa; Finnish: Tromssa[2] Kven: Tromssa) is a city and municipality in"
|
||
" Troms county, Norway.\n"
|
||
"\n"
|
||
"Tromsø lies in Northern Norway. The municipality has a population of"
|
||
" (2015) 72,066, but with an annual influx of students it has over 75,000"
|
||
" most of the year. The city centre of Tromsø contains the highest number"
|
||
" of old wooden houses in Northern Norway, the oldest house dating from"
|
||
" 1789. The Arctic Cathedral, a modern church from…",
|
||
)
|
||
|
||
|
||
class OpenGraphFromHtmlTestCase(unittest.TestCase):
|
||
if not lxml:
|
||
skip = "url preview feature requires lxml"
|
||
|
||
def test_simple(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<head><title>Foo</title></head>
|
||
<body>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
|
||
|
||
def test_comment(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<head><title>Foo</title></head>
|
||
<body>
|
||
<!-- HTML comment -->
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
|
||
|
||
def test_comment2(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<head><title>Foo</title></head>
|
||
<body>
|
||
Some text.
|
||
<!-- HTML comment -->
|
||
Some more text.
|
||
<p>Text</p>
|
||
More text
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(
|
||
og,
|
||
{
|
||
"og:title": "Foo",
|
||
"og:description": "Some text.\n\nSome more text.\n\nText\n\nMore text",
|
||
},
|
||
)
|
||
|
||
def test_script(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<head><title>Foo</title></head>
|
||
<body>
|
||
<script> (function() {})() </script>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
|
||
|
||
def test_missing_title(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<body>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": None, "og:description": "Some text."})
|
||
|
||
# Another variant is a title with no content.
|
||
html = b"""
|
||
<html>
|
||
<head><title></title></head>
|
||
<body>
|
||
<h1>Title</h1>
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Title", "og:description": "Title"})
|
||
|
||
def test_h1_as_title(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<meta property="og:description" content="Some text."/>
|
||
<body>
|
||
<h1>Title</h1>
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Title", "og:description": "Some text."})
|
||
|
||
def test_empty_description(self) -> None:
|
||
"""Description tags with empty content should be ignored."""
|
||
html = b"""
|
||
<html>
|
||
<meta property="og:description" content=""/>
|
||
<meta property="og:description"/>
|
||
<meta name="description" content=""/>
|
||
<meta name="description"/>
|
||
<meta name="description" content="Finally!"/>
|
||
<body>
|
||
<h1>Title</h1>
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": "Title", "og:description": "Finally!"})
|
||
|
||
def test_missing_title_and_broken_h1(self) -> None:
|
||
html = b"""
|
||
<html>
|
||
<body>
|
||
<h1><a href="foo"/></h1>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
|
||
self.assertEqual(og, {"og:title": None, "og:description": "Some text."})
|
||
|
||
def test_empty(self) -> None:
|
||
"""Test a body with no data in it."""
|
||
html = b""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
self.assertIsNone(tree)
|
||
|
||
def test_no_tree(self) -> None:
|
||
"""A valid body with no tree in it."""
|
||
html = b"\x00"
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
self.assertIsNone(tree)
|
||
|
||
def test_xml(self) -> None:
|
||
"""Test decoding XML and ensure it works properly."""
|
||
# Note that the strip() call is important to ensure the xml tag starts
|
||
# at the initial byte.
|
||
html = b"""
|
||
<?xml version="1.0" encoding="UTF-8"?>
|
||
|
||
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||
<head><title>Foo</title></head><body>Some text.</body></html>
|
||
""".strip()
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
|
||
|
||
def test_invalid_encoding(self) -> None:
|
||
"""An invalid character encoding should be ignored and treated as UTF-8, if possible."""
|
||
html = b"""
|
||
<html>
|
||
<head><title>Foo</title></head>
|
||
<body>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html", "invalid-encoding")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
|
||
|
||
def test_invalid_encoding2(self) -> None:
|
||
"""A body which doesn't match the sent character encoding."""
|
||
# Note that this contains an invalid UTF-8 sequence in the title.
|
||
html = b"""
|
||
<html>
|
||
<head><title>\xff\xff Foo</title></head>
|
||
<body>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(og, {"og:title": "ÿÿ Foo", "og:description": "Some text."})
|
||
|
||
def test_windows_1252(self) -> None:
|
||
"""A body which uses cp1252, but doesn't declare that."""
|
||
html = b"""
|
||
<html>
|
||
<head><title>\xf3</title></head>
|
||
<body>
|
||
Some text.
|
||
</body>
|
||
</html>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(og, {"og:title": "ó", "og:description": "Some text."})
|
||
|
||
def test_twitter_tag(self) -> None:
|
||
"""Twitter card tags should be used if nothing else is available."""
|
||
html = b"""
|
||
<html>
|
||
<meta name="twitter:card" content="summary">
|
||
<meta name="twitter:description" content="Description">
|
||
<meta name="twitter:site" content="@matrixdotorg">
|
||
</html>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(
|
||
og,
|
||
{
|
||
"og:title": None,
|
||
"og:description": "Description",
|
||
"og:site_name": "@matrixdotorg",
|
||
},
|
||
)
|
||
|
||
# But they shouldn't override Open Graph values.
|
||
html = b"""
|
||
<html>
|
||
<meta name="twitter:card" content="summary">
|
||
<meta name="twitter:description" content="Description">
|
||
<meta property="og:description" content="Real Description">
|
||
<meta name="twitter:site" content="@matrixdotorg">
|
||
<meta property="og:site_name" content="matrix.org">
|
||
</html>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(
|
||
og,
|
||
{
|
||
"og:title": None,
|
||
"og:description": "Real Description",
|
||
"og:site_name": "matrix.org",
|
||
},
|
||
)
|
||
|
||
def test_nested_nodes(self) -> None:
|
||
"""A body with some nested nodes. Tests that we iterate over children
|
||
in the right order (and don't reverse the order of the text)."""
|
||
html = b"""
|
||
<a href="somewhere">Welcome <b>the bold <u>and underlined text <svg>
|
||
with a cheeky SVG</svg></u> and <strong>some</strong> tail text</b></a>
|
||
"""
|
||
tree = decode_body(html, "http://example.com/test.html")
|
||
assert tree is not None
|
||
og = parse_html_to_open_graph(tree)
|
||
self.assertEqual(
|
||
og,
|
||
{
|
||
"og:title": None,
|
||
"og:description": "Welcome\n\nthe bold\n\nand underlined text\n\nand\n\nsome\n\ntail text",
|
||
},
|
||
)
|
||
|
||
|
||
class MediaEncodingTestCase(unittest.TestCase):
|
||
def test_meta_charset(self) -> None:
|
||
"""A character encoding is found via the meta tag."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<html>
|
||
<head><meta charset="ascii">
|
||
</head>
|
||
</html>
|
||
""",
|
||
"text/html",
|
||
)
|
||
self.assertEqual(list(encodings), ["ascii", "utf-8", "cp1252"])
|
||
|
||
# A less well-formed version.
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<html>
|
||
<head>< meta charset = ascii>
|
||
</head>
|
||
</html>
|
||
""",
|
||
"text/html",
|
||
)
|
||
self.assertEqual(list(encodings), ["ascii", "utf-8", "cp1252"])
|
||
|
||
def test_meta_charset_underscores(self) -> None:
|
||
"""A character encoding contains underscore."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<html>
|
||
<head><meta charset="Shift_JIS">
|
||
</head>
|
||
</html>
|
||
""",
|
||
"text/html",
|
||
)
|
||
self.assertEqual(list(encodings), ["shift_jis", "utf-8", "cp1252"])
|
||
|
||
def test_xml_encoding(self) -> None:
|
||
"""A character encoding is found via the meta tag."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<?xml version="1.0" encoding="ascii"?>
|
||
<html>
|
||
</html>
|
||
""",
|
||
"text/html",
|
||
)
|
||
self.assertEqual(list(encodings), ["ascii", "utf-8", "cp1252"])
|
||
|
||
def test_meta_xml_encoding(self) -> None:
|
||
"""Meta tags take precedence over XML encoding."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<?xml version="1.0" encoding="ascii"?>
|
||
<html>
|
||
<head><meta charset="UTF-16">
|
||
</head>
|
||
</html>
|
||
""",
|
||
"text/html",
|
||
)
|
||
self.assertEqual(list(encodings), ["utf-16", "ascii", "utf-8", "cp1252"])
|
||
|
||
def test_content_type(self) -> None:
|
||
"""A character encoding is found via the Content-Type header."""
|
||
# Test a few variations of the header.
|
||
headers = (
|
||
'text/html; charset="ascii";',
|
||
"text/html;charset=ascii;",
|
||
'text/html; charset="ascii"',
|
||
"text/html; charset=ascii",
|
||
'text/html; charset="ascii;',
|
||
'text/html; charset=ascii";',
|
||
)
|
||
for header in headers:
|
||
encodings = _get_html_media_encodings(b"", header)
|
||
self.assertEqual(list(encodings), ["ascii", "utf-8", "cp1252"])
|
||
|
||
def test_fallback(self) -> None:
|
||
"""A character encoding cannot be found in the body or header."""
|
||
encodings = _get_html_media_encodings(b"", "text/html")
|
||
self.assertEqual(list(encodings), ["utf-8", "cp1252"])
|
||
|
||
def test_duplicates(self) -> None:
|
||
"""Ensure each encoding is only attempted once."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<?xml version="1.0" encoding="utf8"?>
|
||
<html>
|
||
<head><meta charset="UTF-8">
|
||
</head>
|
||
</html>
|
||
""",
|
||
'text/html; charset="UTF_8"',
|
||
)
|
||
self.assertEqual(list(encodings), ["utf-8", "cp1252"])
|
||
|
||
def test_unknown_invalid(self) -> None:
|
||
"""A character encoding should be ignored if it is unknown or invalid."""
|
||
encodings = _get_html_media_encodings(
|
||
b"""
|
||
<html>
|
||
<head><meta charset="invalid">
|
||
</head>
|
||
</html>
|
||
""",
|
||
'text/html; charset="invalid"',
|
||
)
|
||
self.assertEqual(list(encodings), ["utf-8", "cp1252"])
|