[youtube] Add support for search result URLs (Fixes #2495)

3 files changed, 48 insertions, 9 deletions

diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 47205efae..bbfdfb444 100644
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -675,7 +675,7 @@ class YoutubeDL(object):
             info_dict['playlist'] = None
             info_dict['playlist_index'] = None
 
-        if 'display_id' not in info_dict:
+        if 'display_id' not in info_dict and 'id' in info_dict:
             info_dict['display_id'] = info_dict['id']
 
         # This extractors handle format selection themselves
diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index e6755151c..f35ee4941 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -285,19 +285,20 @@ from .youku import YoukuIE
 from .youporn import YouPornIE
 from .youtube import (
     YoutubeIE,
+    YoutubeChannelIE,
+    YoutubeFavouritesIE,
+    YoutubeHistoryIE,
     YoutubePlaylistIE,
-    YoutubeSearchIE,
+    YoutubeRecommendedIE,
     YoutubeSearchDateIE,
-    YoutubeUserIE,
-    YoutubeChannelIE,
+    YoutubeSearchIE,
+    YoutubeSearchURLIE,
     YoutubeShowIE,
     YoutubeSubscriptionsIE,
-    YoutubeRecommendedIE,
+    YoutubeTopListIE,
     YoutubeTruncatedURLIE,
+    YoutubeUserIE,
     YoutubeWatchLaterIE,
-    YoutubeFavouritesIE,
-    YoutubeHistoryIE,
-    YoutubeTopListIE,
 )
 from .zdf import ZDFIE
 
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index b40a45384..166a0cf70 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -1645,7 +1645,7 @@ class YoutubeChannelIE(InfoExtractor):
 
 class YoutubeUserIE(InfoExtractor):
     IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
-    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
+    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
     _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/users/%s'
     _GDATA_PAGE_SIZE = 50
     _GDATA_URL = 'https://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
@@ -1744,12 +1744,50 @@ class YoutubeSearchIE(SearchInfoExtractor):
                   for video_id in video_ids]
         return self.playlist_result(videos, query)
 
+
 class YoutubeSearchDateIE(YoutubeSearchIE):
     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
     _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc&orderby=published'
     _SEARCH_KEY = 'ytsearchdate'
     IE_DESC = u'YouTube.com searches, newest videos first'
 
+
+class YoutubeSearchURLIE(InfoExtractor):
+    IE_DESC = u'YouTube.com search URLs'
+    IE_NAME = u'youtube:search_url'
+    _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?search_query=(?P<query>[^&]+)(?:[&]|$)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        query = compat_urllib_parse.unquote_plus(mobj.group('query'))
+
+        webpage = self._download_webpage(url, query)
+        result_code = self._search_regex(
+            r'(?s)<ol id="search-results"(.*?)</ol>', webpage, u'result HTML')
+
+        part_codes = re.findall(
+            r'(?s)<h3 class="yt-lockup-title">(.*?)</h3>', result_code)
+        entries = []
+        for part_code in part_codes:
+            part_title = self._html_search_regex(
+                r'(?s)title="([^"]+)"', part_code, 'item title', fatal=False)
+            part_url_snippet = self._html_search_regex(
+                r'(?s)href="([^"]+)"', part_code, 'item URL')
+            part_url = compat_urlparse.urljoin(
+                'https://www.youtube.com/', part_url_snippet)
+            entries.append({
+                '_type': 'url',
+                'url': part_url,
+                'title': part_title,
+            })
+
+        return {
+            '_type': 'playlist',
+            'entries': entries,
+            'title': query,
+        }
+
+
 class YoutubeShowIE(InfoExtractor):
     IE_DESC = u'YouTube.com (multi-season) shows'
     _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'