1: <?php
  2: /**
  3:  * Smarty Internal Plugin Resource Extends
  4:  *
  5:  * @package    Smarty
  6:  * @subpackage TemplateResources
  7:  * @author     Uwe Tews
  8:  * @author     Rodney Rehm
  9:  */
 10: 
 11: /**
 12:  * Smarty Internal Plugin Resource Extends
 13:  * Implements the file system as resource for Smarty which {extend}s a chain of template files templates
 14:  *
 15:  * @package    Smarty
 16:  * @subpackage TemplateResources
 17:  */
 18: class Smarty_Internal_Resource_Extends extends Smarty_Resource
 19: {
 20:     /**
 21:      * mbstring.overload flag
 22:      *
 23:      * @var int
 24:      */
 25:     public $mbstring_overload = 0;
 26: 
 27:     /**
 28:      * populate Source Object with meta data from Resource
 29:      *
 30:      * @param Smarty_Template_Source   $source    source object
 31:      * @param Smarty_Internal_Template $_template template object
 32:      *
 33:      * @throws SmartyException
 34:      */
 35:     public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
 36:     {
 37:         $uid = '';
 38:         $sources = array();
 39:         $components = explode('|', $source->name);
 40:         $exists = true;
 41:         foreach ($components as $component) {
 42:             $s = Smarty_Resource::source(null, $source->smarty, $component);
 43:             if ($s->type == 'php') {
 44:                 throw new SmartyException("Resource type {$s->type} cannot be used with the extends resource type");
 45:             }
 46:             $sources[$s->uid] = $s;
 47:             $uid .= realpath($s->filepath);
 48:             if ($_template && $_template->smarty->compile_check) {
 49:                 $exists = $exists && $s->exists;
 50:             }
 51:         }
 52:         $source->components = $sources;
 53:         $source->filepath = $s->filepath;
 54:         $source->uid = sha1($uid);
 55:         if ($_template && $_template->smarty->compile_check) {
 56:             $source->timestamp = $s->timestamp;
 57:             $source->exists = $exists;
 58:         }
 59:         // need the template at getContent()
 60:         $source->template = $_template;
 61:     }
 62: 
 63:     /**
 64:      * populate Source Object with timestamp and exists from Resource
 65:      *
 66:      * @param Smarty_Template_Source $source source object
 67:      */
 68:     public function populateTimestamp(Smarty_Template_Source $source)
 69:     {
 70:         $source->exists = true;
 71:         foreach ($source->components as $s) {
 72:             $source->exists = $source->exists && $s->exists;
 73:         }
 74:         $source->timestamp = $s->timestamp;
 75:     }
 76: 
 77:     /**
 78:      * Load template's source from files into current template object
 79:      *
 80:      * @param Smarty_Template_Source $source source object
 81:      *
 82:      * @return string template source
 83:      * @throws SmartyException if source cannot be loaded
 84:      */
 85:     public function getContent(Smarty_Template_Source $source)
 86:     {
 87:         if (!$source->exists) {
 88:             throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
 89:         }
 90: 
 91:         $_components = array_reverse($source->components);
 92: 
 93:         $_content = '';
 94:         foreach ($_components as $_component) {
 95:             // read content
 96:             $_content .= $_component->content;
 97:         }
 98:         return $_content;
 99:     }
100: 
101:     /**
102:      * Determine basename for compiled filename
103:      *
104:      * @param Smarty_Template_Source $source source object
105:      *
106:      * @return string resource's basename
107:      */
108:     public function getBasename(Smarty_Template_Source $source)
109:     {
110:         return str_replace(':', '.', basename($source->filepath));
111:     }
112: }
113: