source: branches/1.2/workflow/inc/smarty/internals/core.load_plugins.php @ 1349

Revision 1349, 4.3 KB checked in by niltonneto, 15 years ago (diff)

Ticket #561 - Inclusão do módulo Workflow faltante nessa versão.

  • Property svn:executable set to *
Line 
1<?php
2/**
3 * Smarty plugin
4 * @package Smarty
5 * @subpackage plugins
6 */
7
8/**
9 * Load requested plugins
10 *
11 * @param array $plugins
12 */
13
14// $plugins
15
16function smarty_core_load_plugins($params, &$smarty)
17{
18
19    foreach ($params['plugins'] as $_plugin_info) {
20        list($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info;
21        $_plugin = &$smarty->_plugins[$_type][$_name];
22
23        /*
24         * We do not load plugin more than once for each instance of Smarty.
25         * The following code checks for that. The plugin can also be
26         * registered dynamically at runtime, in which case template file
27         * and line number will be unknown, so we fill them in.
28         *
29         * The final element of the info array is a flag that indicates
30         * whether the dynamically registered plugin function has been
31         * checked for existence yet or not.
32         */
33        if (isset($_plugin)) {
34            if (empty($_plugin[3])) {
35                if (!is_callable($_plugin[0])) {
36                    $smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
37                } else {
38                    $_plugin[1] = $_tpl_file;
39                    $_plugin[2] = $_tpl_line;
40                    $_plugin[3] = true;
41                    if (!isset($_plugin[4])) $_plugin[4] = true; /* cacheable */
42                }
43            }
44            continue;
45        } else if ($_type == 'insert') {
46            /*
47             * For backwards compatibility, we check for insert functions in
48             * the symbol table before trying to load them as a plugin.
49             */
50            $_plugin_func = 'insert_' . $_name;
51            if (function_exists($_plugin_func)) {
52                $_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false);
53                continue;
54            }
55        }
56
57        $_plugin_file = $smarty->_get_plugin_filepath($_type, $_name);
58
59        if (! $_found = ($_plugin_file != false)) {
60            $_message = "could not load plugin file '$_type.$_name.php'\n";
61        }
62
63        /*
64         * If plugin file is found, it -must- provide the properly named
65         * plugin function. In case it doesn't, simply output the error and
66         * do not fall back on any other method.
67         */
68        if ($_found) {
69            include_once $_plugin_file;
70
71            $_plugin_func = 'smarty_' . $_type . '_' . $_name;
72            if (!function_exists($_plugin_func)) {
73                $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__, __LINE__);
74                continue;
75            }
76        }
77        /*
78         * In case of insert plugins, their code may be loaded later via
79         * 'script' attribute.
80         */
81        else if ($_type == 'insert' && $_delayed_loading) {
82            $_plugin_func = 'smarty_' . $_type . '_' . $_name;
83            $_found = true;
84        }
85
86        /*
87         * Plugin specific processing and error checking.
88         */
89        if (!$_found) {
90            if ($_type == 'modifier') {
91                /*
92                 * In case modifier falls back on using PHP functions
93                 * directly, we only allow those specified in the security
94                 * context.
95                 */
96                if ($smarty->security && !in_array($_name, $smarty->security_settings['MODIFIER_FUNCS'])) {
97                    $_message = "(secure mode) modifier '$_name' is not allowed";
98                } else {
99                    if (!function_exists($_name)) {
100                        $_message = "modifier '$_name' is not implemented";
101                    } else {
102                        $_plugin_func = $_name;
103                        $_found = true;
104                    }
105                }
106            } else if ($_type == 'function') {
107                /*
108                 * This is a catch-all situation.
109                 */
110                $_message = "unknown tag - '$_name'";
111            }
112        }
113
114        if ($_found) {
115            $smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true);
116        } else {
117            // output error
118            $smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__, __LINE__);
119        }
120    }
121}
122
123/* vim: set expandtab: */
124
125?>
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