Fix db_get_value after mysql->mysqli upgrade

[wfpl.git] / http.php

diff --git a/http.php b/http.php
index 042e1b9..2907410 100644 (file)
--- a/http.php
+++ b/http.php
@@ -1,35 +1,19 @@
 <?php
 
-#  Copyright (C) 2005 Jason Woofenden
-#
-#  This file is part of wfpl.
-#
-#  wfpl is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Lesser General Public License as published by the Free
-#  Software Foundation; either version 2.1 of the License, or (at your option)
-#  any later version.
-#
-#  wfpl is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-#  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU Lesser General Public License
-#  along with wfpl; if not, write to the Free Software Foundation, Inc., 51
-#  Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+# This program is in the public domain within the United States. Additionally,
+# we waive copyright and related rights in the work worldwide through the CC0
+# 1.0 Universal public domain dedication, which can be found at
+# http://creativecommons.org/publicdomain/zero/1.0/
 
 
 # return our best guess at the url used to access this page, without the path or query string
 function this_url_sans_path() {
-       list($protocol, $version) = explode('/', $_SERVER['SERVER_PROTOCOL']);
-       $url = strtolower($protocol);
-
-       if($url == 'http') {
-               $expected_port = 80;
-       } elseif ($url == 'https') {
+       if (isset($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS']) == 'on' || strtolower($_SERVER['HTTPS']) == 'yes')) {
+               $url = 'https';
                $expected_port = 443;
        } else {
-               $expected_port = -1;
+               $url = 'http';
+               $expected_port = 80;
        }
 
        $url .= '://';
@@ -84,11 +68,14 @@ function redirect($url, $status = '302 Moved Temporarily', $message = '') {
                if(substr($url, 0, 1) == '/') {
                        $url = this_url_sans_path() . $url;
                } else {
-                       $url = ereg_replace('/[^/]*$', "/$url", this_url());
+                       $url = preg_replace('|/[^/]*$|', "/$url", this_url());
                }
        }
                        
        if(function_exists('session_save_messages')) {
+               if(function_exists('atexit_now')) {
+                       atexit_now();
+               }
                session_save_messages();
        }
 
@@ -98,4 +85,9 @@ function redirect($url, $status = '302 Moved Temporarily', $message = '') {
        exit();
 }
 
-?>
+# output http headers to allow caching of this page forever
+function http_cache_forever($cache_control = 'public') {
+       header('Last-Modified: '.gmdate('D, d M Y H:i:s', 5025) . ' GMT'); # long time ago
+       header("Cache-Control: $cache_control");
+       header('Expires: ' . gmdate('D, d M Y H:i:s',time()+31536000) . ' GMT'); # rfc 2616 says not to go more than a year in the future
+}