51ff3226 |
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 | // $plugins |
15 | |
16 | function smarty_core_load_plugins($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 | ?> |