From 92e1671514f713675febd2824e34e15c2975be10 Mon Sep 17 00:00:00 2001
From: gringofe <PGFvy85nC@protonmail.com>
Date: Fri, 23 Oct 2020 11:15:14 +0200
Subject: [PATCH] fix gifdelivernetwork redirection

---
 .../me/ccrama/redditslide/util/GifUtils.java  | 46 ++++++++++++++-----
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/app/src/main/java/me/ccrama/redditslide/util/GifUtils.java b/app/src/main/java/me/ccrama/redditslide/util/GifUtils.java
index 04ef3ac630..08f55be5e6 100644
--- a/app/src/main/java/me/ccrama/redditslide/util/GifUtils.java
+++ b/app/src/main/java/me/ccrama/redditslide/util/GifUtils.java
@@ -12,6 +12,7 @@
 import android.os.AsyncTask;
 import android.os.Environment;
 import android.os.Looper;
+import android.util.Log;
 import android.view.View;
 import android.widget.ProgressBar;
 import android.widget.TextView;
@@ -473,6 +474,33 @@ public static VideoType getVideoType(String url) {
             return VideoType.OTHER;
         }
 
+      /**
+       * Get an API response for a given host and gfy name
+       *
+       * @param host the host to send the req to
+       * @param name the name of the gfy
+       * @return the result
+       */
+        JsonObject getApiResponse(String host, String name){
+          String gfycatUrl = "https://api." + host + ".com/v1/gfycats" + name;
+          return HttpUtil.getJsonObject(client, gson, gfycatUrl);
+        }
+
+       /**
+        * Get the correct mp4/mobile url from a given result JsonObject
+        *
+        * @param result the result to check
+        * @return the video url
+        */
+        String getUrlFromApi(JsonObject result){
+          if (result.getAsJsonObject("gfyItem").has("mobileUrl")) {
+            return result.getAsJsonObject("gfyItem").get("mobileUrl").getAsString();
+          } else {
+            return result.getAsJsonObject("gfyItem").get("mp4Url").getAsString();
+          }
+        }
+
+
         OkHttpClient client = Reddit.client;
 
         /**
@@ -493,14 +521,13 @@ Uri loadGfycat(String name, String fullUrl, Gson gson) {
             if (name.contains("-")) {
                 name = name.split("-")[0];
             }
-            String gfycatUrl = "https://api." + host + ".com/v1/gfycats" + name;
-            final JsonObject result = HttpUtil.getJsonObject(client, gson, gfycatUrl);
-            String obj;
+            final JsonObject result = getApiResponse(host, name);
             if (result == null || result.get("gfyItem") == null || result.getAsJsonObject("gfyItem")
                     .get("mp4Url")
                     .isJsonNull()) {
                 //If the result null, the gfycat link may be redirecting to gifdeliverynetwork which is powered by redgifs.
-                //Try getting the redirected url from gfycat and check if redirected url is gifdeliverynetwork and return the url
+                //Try getting the redirected url from gfycat and check if redirected url is gifdeliverynetwork and if it is,
+                // we fetch the actual .mp4/.webm url from the redgifs api
                 if (result == null) {
                     try {
                         URL newUrl = new URL(fullUrl);
@@ -508,7 +535,7 @@ Uri loadGfycat(String name, String fullUrl, Gson gson) {
                         ucon.setInstanceFollowRedirects(false);
                         String secondURL = new URL(ucon.getHeaderField("location")).toString();
                         if (secondURL.contains("gifdeliverynetwork")){
-                            return Uri.parse(secondURL);
+                            return Uri.parse(getUrlFromApi(getApiResponse("redgifs", name)));
                         }
 
                     } catch (IOException e) {
@@ -550,14 +577,9 @@ public void onClick(DialogInterface dialog, int which) {
                 }
 
                 return null;
-            } else {
-                if (result.getAsJsonObject("gfyItem").has("mobileUrl")) {
-                    obj = result.getAsJsonObject("gfyItem").get("mobileUrl").getAsString();
-                } else {
-                    obj = result.getAsJsonObject("gfyItem").get("mp4Url").getAsString();
-                }
             }
-            return Uri.parse(obj);
+
+            return Uri.parse(getUrlFromApi(result));
         }
 
         /*Loads a direct MP4, used for DASH mp4 or direct/imgur videos, currently unused