1 files changed, 83 insertions, 0 deletions
diff --git a/yt_dlp/extractor/box.py b/yt_dlp/extractor/box.py
new file mode 100644
index 0000000..7281b3c
--- /dev/null
+++ b/yt_dlp/extractor/box.py
@@ -0,0 +1,83 @@
+import json
+import urllib.parse
+
+from .common import InfoExtractor
+from ..utils import (
+    parse_iso8601,
+    update_url_query,
+    url_or_none,
+)
+from ..utils.traversal import traverse_obj
+
+
+class BoxIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:[^.]+\.)?app\.box\.com/s/(?P<shared_name>[^/?#]+)/file/(?P<id>\d+)'
+    _TEST = {
+        'url': 'https://mlssoccer.app.box.com/s/0evd2o3e08l60lr4ygukepvnkord1o1x/file/510727257538',
+        'md5': '1f81b2fd3960f38a40a3b8823e5fcd43',
+        'info_dict': {
+            'id': '510727257538',
+            'ext': 'mp4',
+            'title': 'Garber   St. Louis will be 28th MLS team  +scarving.mp4',
+            'uploader': '',
+            'timestamp': 1566320259,
+            'upload_date': '20190820',
+            'uploader_id': '235196876',
+        },
+        'params': {'skip_download': 'dash fragment too small'},
+    }
+
+    def _real_extract(self, url):
+        shared_name, file_id = self._match_valid_url(url).groups()
+        webpage = self._download_webpage(url, file_id)
+        request_token = self._parse_json(self._search_regex(
+            r'Box\.config\s*=\s*({.+?});', webpage,
+            'Box config'), file_id)['requestToken']
+        access_token = self._download_json(
+            'https://app.box.com/app-api/enduserapp/elements/tokens', file_id,
+            'Downloading token JSON metadata',
+            data=json.dumps({'fileIDs': [file_id]}).encode(), headers={
+                'Content-Type': 'application/json',
+                'X-Request-Token': request_token,
+                'X-Box-EndUser-API': 'sharedName=' + shared_name,
+            })[file_id]['read']
+        shared_link = 'https://app.box.com/s/' + shared_name
+        f = self._download_json(
+            'https://api.box.com/2.0/files/' + file_id, file_id,
+            'Downloading file JSON metadata', headers={
+                'Authorization': 'Bearer ' + access_token,
+                'BoxApi': 'shared_link=' + shared_link,
+                'X-Rep-Hints': '[dash]',  # TODO: extract `hls` formats
+            }, query={
+                'fields': 'authenticated_download_url,created_at,created_by,description,extension,is_download_available,name,representations,size'
+            })
+        title = f['name']
+
+        query = {
+            'access_token': access_token,
+            'shared_link': shared_link
+        }
+
+        formats = []
+
+        for url_tmpl in traverse_obj(f, (
+            'representations', 'entries', lambda _, v: v['representation'] == 'dash',
+            'content', 'url_template', {url_or_none}
+        )):
+            manifest_url = update_url_query(url_tmpl.replace('{+asset_path}', 'manifest.mpd'), query)
+            fmts = self._extract_mpd_formats(manifest_url, file_id)
+            for fmt in fmts:
+                fmt['extra_param_to_segment_url'] = urllib.parse.urlparse(manifest_url).query
+            formats.extend(fmts)
+
+        creator = f.get('created_by') or {}
+
+        return {
+            'id': file_id,
+            'title': title,
+            'formats': formats,
+            'description': f.get('description') or None,
+            'uploader': creator.get('name'),
+            'timestamp': parse_iso8601(f.get('created_at')),
+            'uploader_id': creator.get('id'),
+        }