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   1  <?php
   2  /**

   3   * Smarty Internal Plugin Resource Eval

   4   *

   5   * @package Smarty

   6   * @subpackage TemplateResources

   7   * @author Uwe Tews

   8   * @author Rodney Rehm

   9   */
  10  
  11  /**

  12   * Smarty Internal Plugin Resource Eval

  13   *

  14   * Implements the strings as resource for Smarty template

  15   *

  16   * {@internal unlike string-resources the compiled state of eval-resources is NOT saved for subsequent access}}

  17   *

  18   * @package Smarty

  19   * @subpackage TemplateResources

  20   */
  21  class Smarty_Internal_Resource_Eval extends Smarty_Resource_Recompiled {
  22  
  23      /**

  24       * populate Source Object with meta data from Resource

  25       *

  26       * @param Smarty_Template_Source   $source    source object

  27       * @param Smarty_Internal_Template $_template template object

  28       * @return void

  29       */
  30      public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template=null)
  31      {
  32          $source->uid = $source->filepath = sha1($source->name);
  33          $source->timestamp = false;
  34          $source->exists = true;
  35      }
  36  
  37      /**

  38       * Load template's source from $resource_name into current template object

  39       *

  40       * @uses decode() to decode base64 and urlencoded template_resources

  41       * @param Smarty_Template_Source $source source object

  42       * @return string template source

  43       */
  44      public function getContent(Smarty_Template_Source $source)
  45      {
  46          return $this->decode($source->name);
  47      }
  48      
  49      /**

  50       * decode base64 and urlencode

  51       *

  52       * @param string $string template_resource to decode

  53       * @return string decoded template_resource

  54       */
  55      protected function decode($string)
  56      {
  57          // decode if specified

  58          if (($pos = strpos($string, ':')) !== false) {
  59              if (!strncmp($string, 'base64', 6)) {
  60                  return base64_decode(substr($string, 7));
  61              } elseif (!strncmp($string, 'urlencode', 9)) {
  62                  return urldecode(substr($string, 10));
  63              }
  64          }
  65          
  66          return $string;
  67      }
  68      
  69      /**

  70       * modify resource_name according to resource handlers specifications

  71       *

  72       * @param Smarty $smarty        Smarty instance

  73       * @param string $resource_name resource_name to make unique

  74       * @return string unique resource name

  75       */
  76      protected function buildUniqueResourceName(Smarty $smarty, $resource_name)
  77      {
  78          return get_class($this) . '#' .$this->decode($resource_name);
  79      }
  80  
  81      /**

  82       * Determine basename for compiled filename

  83       *

  84       * @param Smarty_Template_Source $source source object

  85       * @return string resource's basename

  86       */
  87      protected function getBasename(Smarty_Template_Source $source)
  88      {
  89          return '';
  90      }
  91  
  92  }
  93  
  94  ?>