[ie/Monstercat] Add extractor (#8133)

Closes #8067
Authored by: garret1317

yt_dlp/extractor/_extractors.py

@@ -1126,6 +1126,7 @@ from .mofosex import (
     MofosexEmbedIE,
 )
 from .mojvideo import MojvideoIE
+from .monstercat import MonstercatIE
 from .morningstar import MorningstarIE
 from .motherless import (
     MotherlessIE,

yt_dlp/extractor/monstercat.py

@@ -0,0 +1,79 @@
+import re
+
+from .common import InfoExtractor
+from ..utils import (
+    clean_html,
+    extract_attributes,
+    get_element_by_class,
+    get_element_html_by_class,
+    get_element_text_and_html_by_tag,
+    int_or_none,
+    unified_strdate,
+    strip_or_none,
+    traverse_obj,
+    try_call,
+)
+
+
+class MonstercatIE(InfoExtractor):
+    _VALID_URL = r'https://www\.monstercat\.com/release/(?P<id>\d+)'
+    _TESTS = [{
+        'url': 'https://www.monstercat.com/release/742779548009',
+        'playlist_count': 20,
+        'info_dict': {
+            'title': 'The Secret Language of Trees',
+            'id': '742779548009',
+            'thumbnail': 'https://www.monstercat.com/release/742779548009/cover',
+            'release_year': 2023,
+            'release_date': '20230711',
+            'album': 'The Secret Language of Trees',
+            'album_artist': 'BT',
+        }
+    }]
+
+    def _extract_tracks(self, table, album_meta):
+        for td in re.findall(r'<tr[^<]*>((?:(?!</tr>)[\w\W])+)', table):  # regex by chatgpt due to lack of get_elements_by_tag
+            title = clean_html(try_call(
+                lambda: get_element_by_class('d-inline-flex flex-column', td).partition(' <span')[0]))
+            ids = extract_attributes(try_call(lambda: get_element_html_by_class('btn-play cursor-pointer mr-small', td)) or '')
+            track_id = ids.get('data-track-id')
+            release_id = ids.get('data-release-id')
+
+            track_number = int_or_none(try_call(lambda: get_element_by_class('py-xsmall', td)))
+            if not track_id or not release_id:
+                self.report_warning(f'Skipping track {track_number}, ID(s) not found')
+                self.write_debug(f'release_id={repr(release_id)} track_id={repr(track_id)}')
+                continue
+            yield {
+                **album_meta,
+                'title': title,
+                'track': title,
+                'track_number': track_number,
+                'artist': clean_html(try_call(lambda: get_element_by_class('d-block fs-xxsmall', td))),
+                'url': f'https://www.monstercat.com/api/release/{release_id}/track-stream/{track_id}',
+                'id': track_id,
+                'ext': 'mp3'
+            }
+
+    def _real_extract(self, url):
+        url_id = self._match_id(url)
+        html = self._download_webpage(url, url_id)
+        # wrap all `get_elements` in `try_call`, HTMLParser has problems with site's html
+        tracklist_table = try_call(lambda: get_element_by_class('table table-small', html)) or ''
+
+        title = try_call(lambda: get_element_text_and_html_by_tag('h1', html)[0])
+        date = traverse_obj(html, ({lambda html: get_element_by_class('font-italic mb-medium d-tablet-none d-phone-block',
+                            html).partition('Released ')}, 2, {strip_or_none}, {unified_strdate}))
+
+        album_meta = {
+            'title': title,
+            'album': title,
+            'thumbnail': f'https://www.monstercat.com/release/{url_id}/cover',
+            'album_artist': try_call(
+                lambda: get_element_by_class('h-normal text-uppercase mb-desktop-medium mb-smallish', html)),
+            'release_year': int_or_none(date[:4]) if date else None,
+            'release_date': date,
+        }
+
+        return self.playlist_result(
+            self._extract_tracks(tracklist_table, album_meta), playlist_id=url_id, **album_meta)