aboutsummaryrefslogtreecommitdiffstats
path: root/include/smarty/libs/sysplugins/smarty_internal_runtime_cachemodify.php
blob: 4e2fb83e6cc5004c5aadb91e9e9d49a666736aae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
<?php

/**
 * Inline Runtime Methods render, setSourceByUid, setupSubTemplate
 *
 * @package    Smarty
 * @subpackage PluginsInternal
 * @author     Uwe Tews
 *
 **/
class Smarty_Internal_Runtime_CacheModify
{
    /**
     * check client side cache
     *
     * @param Smarty_Internal_Template $_template
     * @param  string                  $content
     */
    public function cacheModifiedCheck(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template, $content)
    {
        $_isCached = $_template->isCached() && !$_template->compiled->has_nocache_code;
        $_last_modified_date =
            @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
        if ($_isCached && $cached->timestamp <= strtotime($_last_modified_date)) {
            switch (PHP_SAPI) {
                case 'cgi': // php-cgi < 5.3
                case 'cgi-fcgi': // php-cgi >= 5.3
                case 'fpm-fcgi': // php-fpm >= 5.3.3
                    header('Status: 304 Not Modified');
                    break;

                case 'cli':
                    if ( /* ^phpunit */
                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
                    ) {
                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
                    }
                    break;

                default:
                    if ( /* ^phpunit */
                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
                    ) {
                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
                    } else {
                        header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
                    }
                    break;
            }
        } else {
            switch (PHP_SAPI) {
                case 'cli':
                    if ( /* ^phpunit */
                    !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
                    ) {
                        $_SERVER['SMARTY_PHPUNIT_HEADERS'][] =
                            'Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT';
                    }
                    break;
                default:
                    header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT');
                    break;
            }
            echo $content;
        }
    }
}