Changeset 56852 for branches/4.3/src/wp-includes/shortcodes.php

Timestamp:

10/12/2023 02:28:05 PM (3 years ago)

Author:

davidbaumwald

Message:

Grouped backports to the 4.3 branch.

• Comments: Prevent users who can not see a post from seeing comments on it.
• Shortcodes: Restrict ajax handler for media shortcode.
• Prevent unintended behavior when certain objects are unserialized.

Merges [56835], [56836], and [56838] to the 4.1 branch.
Props xknown, jorbin, joehoyle, peterwilsoncc, ehtis, tykoted, antpb.

File:

• branches/4.3/src/wp-includes/shortcodes.php (modified) (1 diff)

branches/4.3/src/wp-includes/shortcodes.php

@@ -172 +172 @@
 
 /**
- * Search content for shortcodes and filter shortcodes through their hooks.
+ * Returns a list of registered shortcode names found in the given content.
+ *
+ * Example usage:
+ *
+ *     get_shortcode_tags_in_content( '[audio src="file.mp3"][/audio] [foo] [gallery ids="1,2,3"]' );
+ *     // array( 'audio', 'gallery' )
+ *
+ * @since 6.3.2
+ *
+ * @param string $content The content to check.
+ * @return string[] An array of registered shortcode names found in the content.
+ */
+function get_shortcode_tags_in_content( $content ) {
+    if ( false === strpos( $content, '[' ) ) {
+        return array();
+    }
+
+    preg_match_all( '/' . get_shortcode_regex() . '/', $content, $matches, PREG_SET_ORDER );
+    if ( empty( $matches ) ) {
+        return array();
+    }
+
+    $tags = array();
+    foreach ( $matches as $shortcode ) {
+        $tags[] = $shortcode[2];
+
+        if ( ! empty( $shortcode[5] ) ) {
+            $deep_tags = get_shortcode_tags_in_content( $shortcode[5] );
+            if ( ! empty( $deep_tags ) ) {
+                $tags = array_merge( $tags, $deep_tags );
+            }
+        }
+    }
+
+    return $tags;
+}
+
+/**
+ * Searches content for shortcodes and filter shortcodes through their hooks.
  *
  * If there are no shortcode tags defined, then the content will be returned