From 3f8ec99719cc91c9ec4fe3a6b32e4930e2c27c23 Mon Sep 17 00:00:00 2001
From: Avi Peretz <pavi@videocites.com>
Date: Sat, 22 Jun 2019 22:54:09 +0300
Subject: [PATCH] extrace page likes.

---
 youtube_dl/extractor/facebook.py | 50 ++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/youtube_dl/extractor/facebook.py b/youtube_dl/extractor/facebook.py
index 1b91c9036..14cb54966 100644
--- a/youtube_dl/extractor/facebook.py
+++ b/youtube_dl/extractor/facebook.py
@@ -24,6 +24,7 @@ from ..utils import (
     sanitized_Request,
     try_get,
     urlencode_postdata,
+    update_url_query
 )
 
 
@@ -481,6 +482,8 @@ class FacebookIE(InfoExtractor):
             'like_count': likes_count,
             'share_count': shares_count
         }
+        if uploader_id:
+            info_dict['uploader_like_count'] = FacebookAjax(self, webpage, uploader_id).page_likes
 
         return webpage, info_dict
 
@@ -587,6 +590,53 @@ class FacebookTahoeData:
         return tahoe_request_data, tahoe_request_headers
 
 
+class FacebookAjax:
+    HOVER_URL_TEMPLATE = 'https://www.facebook.com/ajax/hovercard/user.php?id=111&fb_dtsg_ag=x&endpoint=%2Fajax%2Fhovercard%2Fuser.php%3Fid%3D111&__a=1'
+
+    def __init__(self, extractor, page, page_id):
+        self._page = page
+        self._page_id = page_id
+        self._extractor = extractor
+        self._hover_data = None
+
+    def _get_hover_data(self):
+        if self._hover_data:
+            data = self._hover_data
+        else:
+            data = self._extractor._download_webpage(
+                self._get_request_url(self._page_id), self._page_id
+            )
+        return '' if not data else data
+
+    @property
+    def hover(self):
+        return self._get_hover_data()
+
+    @property
+    def page_likes(self):
+        return parse_count(
+            self._extractor._search_regex(r'\/span>([\d,]+) likes', self.hover, 'uploader_likes', default=None)
+        )
+
+    def _get_request_url(self, page_id):
+        return update_url_query(self.HOVER_URL_TEMPLATE,
+            {
+
+                'id': page_id,
+                'endpoint': '/ajax/hovercard/user.php?id=%s' % page_id,
+                '__a': 1,
+                '__pc': self._extractor._search_regex(
+                    r'pkg_cohort["\']\s*:\s*["\'](.+?)["\']', self._page,
+                    'pkg cohort', default='PHASED:DEFAULT'),
+                '__rev': self._extractor._search_regex(
+                    r'client_revision["\']\s*:\s*(\d+),', self._page,
+                    'client revision', default='3944515'),
+                'fb_dtsg': self._extractor._search_regex(
+                    r'"DTSGInitialData"\s*,\s*\[\]\s*,\s*{\s*"token"\s*:\s*"([^"]+)"',
+                    self._page, 'dtsg token', default=''),
+            })
+
+
 class FacebookPluginsVideoIE(InfoExtractor):
     _VALID_URL = r'https?://(?:[\w-]+\.)?facebook\.com/plugins/video\.php\?.*?\bhref=(?P<id>https.+)'