Changeset 22009 for trunk/wp-includes/functions.php

Timestamp:

09/26/2012 05:08:26 AM (12 years ago)

Author:

dd32

Message:

Move win_is_writable() from wp-admin/includes to wp-includes so that it's always available for get_temp_dir(). Fixes #20778

File:

• trunk/wp-includes/functions.php (modified) (1 diff)

trunk/wp-includes/functions.php

@@ -1407 +1407 @@
     $temp = '/tmp/';
     return $temp;
+}
+
+/**
+ * Workaround for Windows bug in is_writable() function
+ *
+ * @since 2.8.0
+ *
+ * @param string $path
+ * @return bool
+ */
+function win_is_writable( $path ) {
+    /* will work in despite of Windows ACLs bug
+     * NOTE: use a trailing slash for folders!!!
+     * see http://bugs.php.net/bug.php?id=27609
+     * see http://bugs.php.net/bug.php?id=30931
+     */
+
+    if ( $path[strlen( $path ) - 1] == '/' ) // recursively return a temporary file path
+        return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp');
+    else if ( is_dir( $path ) )
+        return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' );
+    // check tmp file for read/write capabilities
+    $should_delete_tmp_file = !file_exists( $path );
+    $f = @fopen( $path, 'a' );
+    if ( $f === false )
+        return false;
+    fclose( $f );
+    if ( $should_delete_tmp_file )
+        unlink( $path );
+    return true;
 }