From 2a552849f1219996303541110d56a058d38aa474 Mon Sep 17 00:00:00 2001
From: Stephen Paul Weber <singpolyma@singpolyma.net>
Date: Thu, 22 Feb 2024 21:49:59 -0500
Subject: [PATCH] Don't try to copy content we already have

Saves time, but also saves us copying over ourselves and destroying the file
---
 .../java/eu/siacs/conversations/persistance/FileBackend.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/main/java/eu/siacs/conversations/persistance/FileBackend.java b/src/main/java/eu/siacs/conversations/persistance/FileBackend.java
index b078428fdbdfd304826b5fce54bfc29e31e09979..9c35d6386fff5dc0bc971a4113c2f53af44ee541 100644
--- a/src/main/java/eu/siacs/conversations/persistance/FileBackend.java
+++ b/src/main/java/eu/siacs/conversations/persistance/FileBackend.java
@@ -743,7 +743,10 @@ public class FileBackend {
                 "copy file (" + uri.toString() + ") to private storage " + file.getAbsolutePath());
         file.getParentFile().mkdirs();
         try {
-            file.createNewFile();
+            if (!file.createNewFile() && file.length() > 0) {
+                if (file.canRead() && file.getName().startsWith("zb2")) return; // We have this content already
+                throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
+            }
         } catch (IOException e) {
             throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
         }