Fixed #5033 - use PHP’s max filesize for image uploads

2018-02-16 21:17:41 -08:00
parent ba5057181e
commit d8fc50c351
9 changed files with 89 additions and 11 deletions
@@ -731,5 +731,62 @@ class Helper
    }


+    // Nicked from Drupal :)
+    // Returns a file size limit in bytes based on the PHP upload_max_filesize
+    // and post_max_size
+    public static function file_upload_max_size() {
+        static $max_size = -1;
+
+        if ($max_size < 0) {
+            // Start with post_max_size.
+            $post_max_size = Helper::parse_size(ini_get('post_max_size'));
+            if ($post_max_size > 0) {
+                $max_size = $post_max_size;
+            }
+
+            // If upload_max_size is less, then reduce. Except if upload_max_size is
+            // zero, which indicates no limit.
+            $upload_max = Helper::parse_size(ini_get('upload_max_filesize'));
+            if ($upload_max > 0 && $upload_max < $max_size) {
+                $max_size = $upload_max;
+            }
+        }
+        return $max_size;
+    }
+
+    public static function file_upload_max_size_readable() {
+        static $max_size = -1;
+
+        if ($max_size < 0) {
+            // Start with post_max_size.
+            $post_max_size = Helper::parse_size(ini_get('post_max_size'));
+            if ($post_max_size > 0) {
+                $max_size = ini_get('post_max_size');
+            }
+
+            // If upload_max_size is less, then reduce. Except if upload_max_size is
+            // zero, which indicates no limit.
+            $upload_max = Helper::parse_size(ini_get('upload_max_filesize'));
+            if ($upload_max > 0 && $upload_max < $max_size) {
+                $max_size = ini_get('upload_max_filesize');
+            }
+        }
+        return $max_size;
+    }
+
+    public static function parse_size($size) {
+        $unit = preg_replace('/[^bkmgtpezy]/i', '', $size); // Remove the non-unit characters from the size.
+        $size = preg_replace('/[^0-9\.]/', '', $size); // Remove the non-numeric characters from the size.
+        if ($unit) {
+            // Find the position of the unit in the ordered string which is the power of magnitude to multiply a kilobyte by.
+            return round($size * pow(1024, stripos('bkmgtpezy', $unit[0])));
+        }
+        else {
+            return round($size);
+        }
+    }
+
+
+

 }