From 9e2ea2ffedb22f83137db4e5ba4c06b91f11e09d Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Thu, 17 May 2012 20:25:27 -0700
Subject: Smash multiple extensions down into a single one when accepting file
 uploads.  Fixes #1872.

---
 modules/gallery/helpers/legal_file.php | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'modules/gallery/helpers')

diff --git a/modules/gallery/helpers/legal_file.php b/modules/gallery/helpers/legal_file.php
index 075de9cd..bd48d7b7 100644
--- a/modules/gallery/helpers/legal_file.php
+++ b/modules/gallery/helpers/legal_file.php
@@ -92,4 +92,20 @@ class legal_file_Core {
       return preg_replace("/\.[^\.]*?$/", ".{$new_ext}", $filename);
     }
   }
+
+  /**
+   * Reduce the given file to having a single extension.
+   */
+  static function smash_extensions($filename) {
+    $parts = pathinfo($filename);
+    $result = "";
+    if ($parts["dirname"] != ".") {
+      $result .= $parts["dirname"] . "/";
+    }
+    $parts["filename"] = str_replace(".", "_", $parts["filename"]);
+    $parts["filename"] = preg_replace("/[_]+/", "_", $parts["filename"]);
+    $parts["filename"] = trim($parts["filename"], "_");
+    $result .= "{$parts['filename']}.{$parts['extension']}";
+    return $result;
+  }
 }
-- 
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