Asynchronous retrieval of bookmark's thumbnails

[github/shaarli/Shaarli.git] / application / bookmark / Bookmark.php

diff --git a/application/bookmark/Bookmark.php b/application/bookmark/Bookmark.php
index ea565d1f689d0068b7327211025581546189a4d2..4810c5e63b5b97b831ba7eb77cc6053c0dbd9d9d 100644 (file)
--- a/application/bookmark/Bookmark.php
+++ b/application/bookmark/Bookmark.php
@@ -377,6 +377,24 @@ class Bookmark
         return $this;
     }
 
+    /**
+     * Return true if:
+     *   - the bookmark's thumbnail is not already set to false (= not found)
+     *   - it's not a note
+     *   - it's an HTTP(S) link
+     *   - the thumbnail has not yet be retrieved (null) or its associated cache file doesn't exist anymore
+     *
+     * @return bool True if the bookmark's thumbnail needs to be retrieved.
+     */
+    public function shouldUpdateThumbnail(): bool
+    {
+        return $this->thumbnail !== false
+            && !$this->isNote()
+            && startsWith(strtolower($this->url), 'http')
+            && (null === $this->thumbnail || !is_file($this->thumbnail))
+        ;
+    }
+
     /**
      * Get the Sticky.
      *