From 9e91d1d435af8d6291eb393dea9d377657e24dad Mon Sep 17 00:00:00 2001
From: Varun Patil <varunpatil@ucla.edu>
Date: Mon, 21 Nov 2022 01:43:17 -0800
Subject: [PATCH] write: check encoded json (fix #220)

---
 lib/Db/TimelineWrite.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/Db/TimelineWrite.php b/lib/Db/TimelineWrite.php
index a1eceba7b..415c45177 100644
--- a/lib/Db/TimelineWrite.php
+++ b/lib/Db/TimelineWrite.php
@@ -114,8 +114,12 @@ public function processFile(
         $exifJson = json_encode($exif);
 
         // Store error if data > 64kb
-        if (\strlen($exifJson) > 65535) {
-            $exifJson = json_encode(['error' => 'Exif data too large']);
+        if (\is_string($exifJson)) {
+            if (\strlen($exifJson) > 65535) {
+                $exifJson = json_encode(['error' => 'Exif data too large']);
+            }
+        } else {
+            $exifJson = json_encode(['error' => 'Exif data encoding error']);
         }
 
         if ($prevRow) {