prevent repeated failures when working with cached media (OOM, etc)

1 files changed, 8 insertions, 0 deletions

diff --git a/init.php b/init.php
index 95e2405..7c22089 100644
--- a/init.php
+++ b/init.php
@@ -120,8 +120,16 @@ class Api_Resize_Media extends Plugin {
 		}
 
 		$local_filename = sha1($url);
+		$local_filename_flag = "$local_filename.api_resize-flag";
 		$quality = $this->host->get($this, "quality", self::DEFAULT_QUALITY);
 
+		if ($this->cache->exists($local_filename_flag)) {
+			Debug::log("[api_resize_media] $local_filename_flag exists, looks like we failed on this URL before; skipping.", Debug::LOG_VERBOSE);
+			return;
+		}
+
+		$this->cache->touch($local_filename_flag);
+
 		if (!$this->cache->exists($local_filename)) {
 			$data = fetch_file_contents(["url" => $url, "max_size" => Config::get(Config::MAX_CACHE_FILE_SIZE)]);