Added VineUserIE extractor for vine user timeline

Added vine user timeline extractor using unofficial
vine api user profile and timeline api endpoints.

youtube_dl/extractor/vine.py

@@ -2,6 +2,7 @@ from __future__ import unicode_literals
 
 import re
 import json
+import itertools
 
 from .common import InfoExtractor
 from ..utils import unified_strdate
@@ -58,3 +59,38 @@ class VineIE(InfoExtractor):
             'repost_count': data['reposts']['count'],
             'formats': formats,
         }
+
+class VineUserIE(InfoExtractor):
+    IE_NAME = 'vine:user'
+    _VALID_URL = r'(?:https?://)?vine\.co/(?P<user>[^/]+)/?(\?.*)?$'
+    _VINE_BASE_URL = "https://vine.co/"
+
+    def _profile_url(self, user):
+        return "%sapi/users/profiles/vanity/%s"%(self._VINE_BASE_URL, user)
+
+    def _timeline_url(self, user_id, page=1):
+        return "%sapi/timelines/users/%s?page=%s"%(self._VINE_BASE_URL, user_id, page)
+
+    def _profile_data(self, user):
+        return self._download_json(self._profile_url(user), user)
+
+    def _timeline_data(self, user):
+        profile_data = self._profile_data(user)
+        user_id = profile_data['data']['userId']
+        timeline_data = []
+        for pagenum in itertools.count(1):
+            timeline_page = self._download_json(self._timeline_url(user_id, pagenum), user)
+            timeline_data.extend(timeline_page['data']['records'])
+            if timeline_page['data']['nextPage'] is None:
+                break
+        return timeline_data
+
+    def _extract_videos(self, user):
+        timeline_data = self._timeline_data(user)
+        entries = [self.url_result(e['permalinkUrl'], 'Vine') for e in timeline_data]
+        return self.playlist_result(entries, user)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        user = mobj.group('user')
+        return self._extract_videos(user)