From 2d662d79ff26c67b39bbf6588837390bbd3b0da9 Mon Sep 17 00:00:00 2001
From: evermind <evermind@tuxfamily.org>
Date: Mon, 6 Feb 2023 22:46:01 +0100
Subject: [PATCH] RUMBLE: fix getting video size for Rumble as they no longer
 support HEAD (discovered 20230203)

---
 .../org/schabi/newpipe/DownloaderImpl.java    | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/org/schabi/newpipe/DownloaderImpl.java b/app/src/main/java/org/schabi/newpipe/DownloaderImpl.java
index 9ddbe96df..27d63897c 100644
--- a/app/src/main/java/org/schabi/newpipe/DownloaderImpl.java
+++ b/app/src/main/java/org/schabi/newpipe/DownloaderImpl.java
@@ -14,6 +14,8 @@ import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
 import org.schabi.newpipe.util.InfoCache;
 
 import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -115,7 +117,11 @@ public final class DownloaderImpl extends Downloader {
     public long getContentLength(final String url) throws IOException {
         try {
             final Response response = head(url);
-            return Long.parseLong(response.getHeader("Content-Length"));
+            if (response.responseCode() == 405) { // HEAD Method not allowed
+                return getContentLengthViaGet(url);
+            } else {
+                return Long.parseLong(response.getHeader("Content-Length"));
+            }
         } catch (final NumberFormatException e) {
             throw new IOException("Invalid content length", e);
         } catch (final ReCaptchaException e) {
@@ -179,4 +185,16 @@ public final class DownloaderImpl extends Downloader {
         return new Response(response.code(), response.message(), response.headers().toMultimap(),
                 responseBodyToReturn, latestUrl);
     }
+
+    // some servers eg rumble do not allow HEAD requests anymore (discovered 202300203)
+    private long getContentLengthViaGet(final String url) throws IOException {
+        final HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
+        conn.setInstanceFollowRedirects(true);
+        conn.setRequestProperty("User-Agent", USER_AGENT);
+        conn.setRequestProperty("Accept", "*/*");
+        conn.setRequestProperty("Accept-Encoding", "*");
+        final String contentSize = conn.getHeaderField("Content-Length");
+        conn.disconnect();
+        return Long.parseLong(contentSize);
+    }
 }