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Fix issue #162 add different regex pattern to search for meta tags #179

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Merged
merged 8 commits into from
Jun 16, 2022
Merged

Fix issue #162 add different regex pattern to search for meta tags #179

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bb741e6
Add different regex pattern to search for meta tags
AngelikiBoura Jun 13, 2022
17e4780
Remove unneeded lines of code
AngelikiBoura Jun 14, 2022
a91b174
Merge pull request #1 from AngelikiBoura/still-bitting
AngelikiBoura Jun 14, 2022
80c1ea7
Fix new regex pattern's flexibility
AngelikiBoura Jun 15, 2022
83a1ecf
Fix format
AngelikiBoura Jun 15, 2022
e2339fb
Apply black
Gallaecio Jun 15, 2022
9757664
Freeze black
Gallaecio Jun 15, 2022
a0a0b0d
Freeze pylint
Gallaecio Jun 15, 2022
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11 changes: 11 additions & 0 deletions tests/test_html.py
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Original file line number Diff line number Diff line change
Expand Up @@ -669,3 +669,14 @@ def test_inside_script(self):
get_meta_refresh(body, baseurl, ignore_tags=()),
(0.0, "http://example.org/foobar_required"),
)

def test_redirections_in_different_ordering__in_meta_tag(self):
baseurl = 'http://localhost:8000'
url1 = '<html><head><meta http-equiv="refresh" content="0;url=dummy.html"></head></html>'
url2 = '<html><head><meta content="0;url=dummy.html" http-equiv="refresh"></head></html>'
self.assertEqual(
get_meta_refresh(url1, baseurl), (0.0, 'http://localhost:8000/dummy.html')
)
self.assertEqual(
get_meta_refresh(url2, baseurl), (0.0, 'http://localhost:8000/dummy.html')
)
7 changes: 6 additions & 1 deletion w3lib/html.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,11 @@
r'<meta\s[^>]*http-equiv[^>]*refresh[^>]*content\s*=\s*(?P<quote>["\'])(?P<int>(\d*\.)?\d+)\s*;\s*url=\s*(?P<url>.*?)(?P=quote)',
re.DOTALL | re.IGNORECASE,
)
_meta_refresh_re2 = re.compile(
r'<meta\s[^>]*content\s*=\s*(?P<quote>["\'])(?P<int>(\d*\.)?\d+)\s*;\s*url=\s*(?P<url>.*?)(?P=quote)\shttp-equiv="refresh"',
re.DOTALL | re.IGNORECASE,
)

_cdata_re = re.compile(
r"((?P<cdata_s><!\[CDATA\[)(?P<cdata_d>.*?)(?P<cdata_e>\]\]>))", re.DOTALL
)
Expand Down Expand Up @@ -338,7 +343,7 @@ def get_meta_refresh(
raise
utext = remove_tags_with_content(utext, ignore_tags)
utext = remove_comments(replace_entities(utext))
m = _meta_refresh_re.search(utext)
m = _meta_refresh_re.search(utext) or _meta_refresh_re2.search(utext)
if m:
interval = float(m.group("int"))
url = safe_url_string(m.group("url").strip(" \"'"), encoding)
Expand Down