Changeset 17555 for trunk/wp-includes/functions.php

Timestamp:

03/25/2011 02:42:20 AM (14 years ago)

Author:

dd32

Message:

First run of introducing Stream-To-File for the WP_HTTP API. Reduces memory consumption during file downloads. Implemented in download_url() for upgraders. Props sivel. See #16236

File:

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

trunk/wp-includes/functions.php

@@ -2109 +2109 @@
 
     return rtrim($base, '/') . '/' . ltrim($path, '/');
+}
+
+/**
+ * Determines a writable directory for temporary files.
+ * Function's preference is to WP_CONTENT_DIR followed by the return value of <code>sys_get_temp_dir()</code>, before finally defaulting to /tmp/
+ *
+ * In the event that this function does not find a writable location, It may be overridden by the <code>WP_TEMP_DIR</code> constant in your <code>wp-config.php</code> file.
+ *
+ * @since 2.5.0
+ *
+ * @return string Writable temporary directory
+ */
+function get_temp_dir() {
+    static $temp;
+    if ( defined('WP_TEMP_DIR') )
+        return trailingslashit(WP_TEMP_DIR);
+
+    if ( $temp )
+        return trailingslashit($temp);
+
+    $temp = WP_CONTENT_DIR . '/';
+    if ( is_dir($temp) && @is_writable($temp) )
+        return $temp;
+
+    if  ( function_exists('sys_get_temp_dir') ) {
+        $temp = sys_get_temp_dir();
+        if ( @is_writable($temp) )
+            return trailingslashit($temp);
+    }
+
+    $temp = ini_get('upload_tmp_dir');
+    if ( is_dir($temp) && @is_writable($temp) )
+        return trailingslashit($temp);
+
+    $temp = '/tmp/';
+    return $temp;
 }