From c5f8759c684bb31f8a85100fdd2a40139c2f77a9 Mon Sep 17 00:00:00 2001
From: Aditya Nath <928.aditya@gmail.com>
Date: Sat, 2 Feb 2019 22:43:05 -0500
Subject: [PATCH] [facebookExtermnal] Add new extractor

---
 youtube_dl/extractor/extractors.py       |  3 +++
 youtube_dl/extractor/facebookExternal.py | 27 ++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 youtube_dl/extractor/facebookExternal.py

diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index b40be42e6..0ff44407d 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -350,6 +350,9 @@ from .facebook import (
     FacebookIE,
     FacebookPluginsVideoIE,
 )
+from .facebookExternal import (
+    FacebookExternalExtractorIE
+)
 from .faz import FazIE
 from .fc2 import (
     FC2IE,
diff --git a/youtube_dl/extractor/facebookExternal.py b/youtube_dl/extractor/facebookExternal.py
new file mode 100644
index 000000000..20d6c2198
--- /dev/null
+++ b/youtube_dl/extractor/facebookExternal.py
@@ -0,0 +1,27 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+from ..compat import (
+    compat_urllib_parse_unquote
+)
+
+
+class FacebookExternalExtractorIE(InfoExtractor):
+    _VALID_URL = r'(?:https?:\/\/(?:[\w-]+\.)?)(?:facebook\.com|facebookcorewwwi\.onion)\/' \
+                 r'(?:[^#]*?\#!\/)?(?:flx\/warn\/)\?(?:.*?)(?:u)=' \
+                 r'(?P<id>https?:\/\/.*)'
+    _TEST = {
+        'url': 'https://www.facebook.com/flx/warn/?u=https://ok.ru/video/1274065521345&h=AT3HvDHvyYWmq_d0apMYHov1W3DmbiVyGLy7QUWYAxXoeMj60gBcYsW4kOu-gXSiEBHk1fVDrlBN3rNOY0E4IDK3TBL7mSvCWLRXv3yZwkS2_7VbmH-1J0jH0B0XMx76PvCf712QltvoUSgqLFJhQ_FSlGGM44FJP_o-NsrNAvJedRrBuw0gyUYcToZvwK8utMr9Z-GESj6tP9fX9xlDChvO7IhAkq9cC3D_naj5ZksqroGkMIbFIfZBqgkZdd0d4657j3awFeHQqItiPGg3D26F47L6RHmrJ9CJGwX01QvtgKlu61N53Kz3jAzbZsGrdlogrEuXX3Y_zeIwZaXfNx_Qz1X4Ub7CqS2ePfLZd6ez01srCR_1pq-HPxOGB79ybz4e54QsF47O-nGgXqm793wtB8w42T_WPUIw1fePBfRrDg3g_UnC1mGVR_1x-dt3RQFrDKrclNk-k_2cqrCpiZ1X3hPFtkNM3HOQYJgVI-1mczqmV3Afx--MjndNXd8Oi19Wu2J_hDqinhH50bYOAF6Ucftn35DCZckV5TC8SP1w8mjB-czyWdgSSv9hWOb_wOZXVnmqpzOuyjvxeKKKYXcCgAp3CoTjNMDzJB5olLmxqMFecR1XlxE2iH9_lM0wABtfQl_gGJa_wh65Y2e75w&_fb_noscript=1',
+        'info_dict': {
+            'id': '1274065521345',
+            'ext': 'mp4',
+            'title': 'Az élet dallama 14. rész'
+        }
+    }
+
+    def _real_extract(self, url):
+        # The only role for this extractor would be to pull
+        # the redirect URL and to pass that to youtubeDL class
+        return self.url_result(
+            compat_urllib_parse_unquote(self._match_id(url)))