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