af_redditimgur: Use v.redd.it fallback URL when possible.

diff --git a/plugins/af_redditimgur/init.php b/plugins/af_redditimgur/init.php
index c872b429a927af76792be100ccac9a2e5a527693..9d10c09be039df3b5a62f6df919c21226daffe05 100755 (executable)
--- a/plugins/af_redditimgur/init.php
+++ b/plugins/af_redditimgur/init.php
@@ -159,7 +159,31 @@ class Af_RedditImgur extends Plugin {
                                                $poster_url = false;
                                        }
 
-                                       $source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
+                                       // IMPORTANT:  This assumes the article GUID is kept in "owner_uid,entry_guid" format, and
+                                       // Reddit feed entries will keep the <id> element (so get_id returns it).
+                                       $feeditem_id = explode(",", $article["guid"])[1];
+                                       $source_stream = false;
+                                       $j = json_decode(fetch_file_contents($article["link"].".json"), true);
+
+                                       if ($j) {
+                                               foreach ($j as $listing) {
+                                                       foreach ($listing["data"]["children"] as $child) {
+                                                               // Found the child object corresponding to the article (e.g. same name+ID like "t3_70j63a").
+                                                               if ($child["data"]["name"] == $feeditem_id) {
+                                                                       try {
+                                                                               $source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
+                                                                       }
+                                                                       catch (Exception $e) {
+                                                                       }
+                                                                       break 2;
+                                                               }
+                                                       }
+                                               }
+                                       }
+
+                                       if (!$source_stream) {
+                                               $source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
+                                       }
 
                                        $this->handle_as_video($doc, $entry, $source_stream, $poster_url);
                                        $found = 1;