[Sommaire] [Imprimer]

   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  ?>