[rmcdecouverte] Generalize `_VALID_URL`

Closes #291

yt_dlp/extractor/rmcdecouverte.py

@@ -13,7 +13,7 @@ from ..utils import smuggle_url
 
 
 class RMCDecouverteIE(InfoExtractor):
-    _VALID_URL = r'https?://rmcdecouverte\.bfmtv\.com/(?:[^/]+/(?P<id>[^?#/]+)|(?P<live_id>mediaplayer-direct))'
+    _VALID_URL = r'https?://rmcdecouverte\.bfmtv\.com/(?:[^?#]*_(?P<id>\d+)|mediaplayer-direct)/?(?:[#?]|$)'
 
     _TESTS = [{
         'url': 'https://rmcdecouverte.bfmtv.com/vestiges-de-guerre_22240/les-bunkers-secrets-domaha-beach_25303/',
@@ -45,6 +45,13 @@ class RMCDecouverteIE(InfoExtractor):
             'skip_download': True,
         },
         'skip': 'only available for a week',
+    }, {
+        'url': 'https://rmcdecouverte.bfmtv.com/avions-furtifs-la-technologie-de-lextreme_10598',
+        'only_matching': True,
+    },{
+        # The website accepts any URL as long as it has _\d+ at the end
+        'url': 'https://rmcdecouverte.bfmtv.com/any/thing/can/go/here/_10598',
+        'only_matching': True,
     }, {
         # live, geo restricted, bypassable
         'url': 'https://rmcdecouverte.bfmtv.com/mediaplayer-direct/',
@@ -54,7 +61,7 @@ class RMCDecouverteIE(InfoExtractor):
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
-        display_id = mobj.group('id') or mobj.group('live_id')
+        display_id = mobj.group('id') or 'direct'
         webpage = self._download_webpage(url, display_id)
         brightcove_legacy_url = BrightcoveLegacyIE._extract_brightcove_url(webpage)
         if brightcove_legacy_url: