Updating copyrights. Happy New Year.

[squirrelmail.git] / functions / global.php

diff --git a/functions/global.php b/functions/global.php
index a48ab2790d1b9228c262f5bb9ce7113aa75d1a33..7e22864ddda305fa03494ed10ed55ac284866145 100644 (file)
--- a/functions/global.php
+++ b/functions/global.php
@@ -7,7 +7,7 @@
  * It also has some session register functions that work across various
  * php versions.
  *
- * @copyright 1999-2009 The SquirrelMail Project Team
+ * @copyright 1999-2012 The SquirrelMail Project Team
  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  * @version $Id$
  * @package squirrelmail
@@ -115,7 +115,7 @@ function sqstripslashes(&$array) {
  *               executed will be returned.
  *
  */
-function sq_call_function_suppress_errors($function, $args=NULL) {
+function sq_call_function_suppress_errors($function, $args=array()) {
    global $sm_debug_mode;
 
    $display_errors = ini_get('display_errors');
@@ -670,32 +670,56 @@ if (!function_exists('session_regenerate_id')) {
 /**
  * php_self
  *
- * Creates an URL for the page calling this function, using either the PHP global
- * REQUEST_URI, or the PHP global PHP_SELF with QUERY_STRING added. Before 1.5.1
- * function was stored in function/strings.php.
+ * Attempts to determine the path and filename and any arguments
+ * for the currently executing script.  This is usually found in
+ * $_SERVER['REQUEST_URI'], but some environments may differ, so 
+ * this function tries to standardize this value.
+ *
+ * Note that before SquirrelMail version 1.5.1, this function was
+ * stored in function/strings.php.
  *
- * @return string the complete url for this page
  * @since 1.2.3
+ * @return string The path, filename and any arguments for the
+ *                current script
  */
-function php_self () {
-    // PHP 4.4.4 apparently gives the wrong value here - missing the query string
-    // this code is commented out in the 1.4.x code, so we'll do the same here
-    //if ( sqgetGlobalVar('REQUEST_URI', $req_uri, SQ_SERVER) && !empty($req_uri) ) {
-    //  return $req_uri;
-    //}
+function php_self() {
 
-    if ( sqgetGlobalVar('PHP_SELF', $php_self, SQ_SERVER) && !empty($php_self) ) {
+    $request_uri = '';
 
-      // need to add query string to end of PHP_SELF to match REQUEST_URI
-      //
-      if ( sqgetGlobalVar('QUERY_STRING', $query_string, SQ_SERVER) && !empty($query_string) ) {
-         $php_self .= '?' . $query_string;
-      }
+    // first try $_SERVER['PHP_SELF'], which seems most reliable
+    // (albeit it usually won't include the query string)
+    //
+    $request_uri = ''; 
+    if (!sqgetGlobalVar('PHP_SELF', $request_uri, SQ_SERVER)
+     || empty($request_uri)) { 
+
+        // well, then let's try $_SERVER['REQUEST_URI']
+        //
+        $request_uri = '';
+        if (!sqgetGlobalVar('REQUEST_URI', $request_uri, SQ_SERVER)
+         || empty($request_uri)) { 
+
+            // TODO: anyone have any other ideas?  maybe $_SERVER['SCRIPT_NAME']???
+            //
+            return '';
+        }
 
-      return $php_self;
     }
 
-    return '';
+    // we may or may not have any query arguments, depending on 
+    // which environment variable was used above, and the PHP
+    // version, etc., so let's check for it now
+    //
+    $query_string = '';
+    if (strpos($request_uri, '?') === FALSE
+     && sqgetGlobalVar('QUERY_STRING', $query_string, SQ_SERVER)
+     && !empty($query_string)) {
+
+        $request_uri .= '?' . $query_string;
+    }   
+
+    return $request_uri;
+
 }