[facebook] raise AuthRequired for profiles requiring cookies (#7962)

gallery_dl/extractor/facebook.py

@@ -315,6 +315,11 @@ class FacebookExtractor(Extractor):
 
         for _ in range(self.fallback_retries + 1):
             profile_photos_page = self.request(profile_photos_url).text
+
+            if ('"props":{"title":"This content isn\'t available right now"' in
+                    profile_photos_page):
+                raise exception.AuthRequired("cookies")
+
             set_id = self._extract_profile_set_id(profile_photos_page)
             avatar_page_url = text.extr(
                 profile_photos_page, ',"profilePhoto":{"url":"', '"')

test/results/facebook.py

@@ -5,6 +5,7 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import facebook
+from gallery_dl import exception
 import datetime
 
 
@@ -65,6 +66,13 @@ __tests__ = (
     "#count"   : 0,
 },
 
+{
+    "#url"      : "https://www.facebook.com/Forgetmen0w/photos",
+    "#comment"  : "'This content isn't available right now'",
+    "#class"    : facebook.FacebookPhotosExtractor,
+    "#exception": exception.AuthRequired,
+},
+
 {
     "#url"     : "https://www.facebook.com/facebook/avatar",
     "#class"   : facebook.FacebookAvatarExtractor,