[extractor/hrefli] Add extractor (#6762)

Authored by: selfisekai

yt_dlp/extractor/_extractors.py

@@ -734,6 +734,7 @@ from .hotstar import (
 )
 from .howcast import HowcastIE
 from .howstuffworks import HowStuffWorksIE
+from .hrefli import HrefLiRedirectIE
 from .hrfensehen import HRFernsehenIE
 from .hrti import (
     HRTiIE,

yt_dlp/extractor/hrefli.py

@@ -0,0 +1,15 @@
+from .common import InfoExtractor
+
+
+class HrefLiRedirectIE(InfoExtractor):
+    IE_NAME = 'href.li'
+    IE_DESC = False  # Do not list
+    _VALID_URL = r'https?://href\.li/\?(?P<url>.+)'
+
+    _TESTS = [{
+        'url': 'https://href.li/?https://www.reddit.com/r/cats/comments/12bluel/my_cat_helps_me_with_water/?utm_source=share&utm_medium=android_app&utm_name=androidcss&utm_term=1&utm_content=share_button',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
+        return self.url_result(self._match_valid_url(url).group('url'))