library/Smarty/libs/sysplugins/smarty_internal_resource_extends.php

   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 *
  14 * Implements the file system as resource for Smarty which {extend}s a chain of template files templates
  15 *
  16 * @package Smarty
  17 * @subpackage TemplateResources
  18 */
  19 class Smarty_Internal_Resource_Extends extends Smarty_Resource {
  20
  21     /**
  22     * mbstring.overload flag
  23     *
  24     * @var int
  25     */
  26     public $mbstring_overload = 0;
  27
  28     /**
  29     * populate Source Object with meta data from Resource
  30     *
  31     * @param Smarty_Template_Source   $source    source object
  32     * @param Smarty_Internal_Template $_template template object
  33     */
  34     public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template=null)
  35     {
  36         $uid = '';
  37         $sources = array();
  38         $components = explode('|', $source->name);
  39         $exists = true;
  40         foreach ($components as $component) {
  41             $s = Smarty_Resource::source(null, $source->smarty, $component);
  42             if ($s->type == 'php') {
  43                 throw new SmartyException("Resource type {$s->type} cannot be used with the extends resource type");
  44             }
  45             $sources[$s->uid] = $s;
  46             $uid .= $s->filepath;
  47             if ($_template && $_template->smarty->compile_check) {
  48                 $exists = $exists && $s->exists;
  49             }
  50         }
  51         $source->components = $sources;
  52         $source->filepath = $s->filepath;
  53         $source->uid = sha1($uid);
  54         if ($_template && $_template->smarty->compile_check) {
  55             $source->timestamp = $s->timestamp;
  56             $source->exists = $exists;
  57         }
  58         // need the template at getContent()
  59         $source->template = $_template;
  60     }
  61
  62     /**
  63     * populate Source Object with timestamp and exists from Resource
  64     *
  65     * @param Smarty_Template_Source $source source object
  66     */
  67     public function populateTimestamp(Smarty_Template_Source $source)
  68     {
  69         $source->exists = true;
  70         foreach ($source->components as $s) {
  71             $source->exists = $source->exists && $s->exists;
  72         }
  73         $source->timestamp = $s->timestamp;
  74     }
  75
  76     /**
  77     * Load template's source from files into current template object
  78     *
  79     * @param Smarty_Template_Source $source source object
  80     * @return string template source
  81     * @throws SmartyException if source cannot be loaded
  82     */
  83     public function getContent(Smarty_Template_Source $source)
  84     {
  85         if (!$source->exists) {
  86             throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
  87         }
  88
  89         $this->mbstring_overload = ini_get('mbstring.func_overload') & 2;
  90         $_rdl = preg_quote($source->smarty->right_delimiter);
  91         $_ldl = preg_quote($source->smarty->left_delimiter);
  92         $_components = array_reverse($source->components);
  93         $_first = reset($_components);
  94         $_last = end($_components);
  95
  96         foreach ($_components as $_component) {
  97             // register dependency
  98             if ($_component != $_first) {
  99                 $source->template->properties['file_dependency'][$_component->uid] = array($_component->filepath, $_component->timestamp, $_component->type);
 100             }
 101
 102             // read content
 103             $source->filepath = $_component->filepath;
 104             $_content = $_component->content;
 105
 106             // extend sources
 107             if ($_component != $_last) {
 108                 if (preg_match_all("!({$_ldl}block\s(.+?){$_rdl})!", $_content, $_open) !=
 109                 preg_match_all("!({$_ldl}/block{$_rdl})!", $_content, $_close)) {
 110                     throw new SmartyException("unmatched {block} {/block} pairs in template {$_component->type} '{$_component->name}'");
 111                 }
 112                 preg_match_all("!{$_ldl}block\s(.+?){$_rdl}|{$_ldl}/block{$_rdl}|{$_ldl}\*([\S\s]*?)\*{$_rdl}!", $_content, $_result, PREG_OFFSET_CAPTURE);
 113                 $_result_count = count($_result[0]);
 114                 $_start = 0;
 115                 while ($_start+1 < $_result_count) {
 116                     $_end = 0;
 117                     $_level = 1;
 118                     if (($this->mbstring_overload ? mb_substr($_result[0][$_start][0],0,mb_strlen($source->smarty->left_delimiter,'latin1')+1, 'latin1') : substr($_result[0][$_start][0],0,strlen($source->smarty->left_delimiter)+1)) == $source->smarty->left_delimiter.'*') {
 119                         $_start++;
 120                         continue;
 121                     }
 122                     while ($_level != 0) {
 123                         $_end++;
 124                         if (($this->mbstring_overload ? mb_substr($_result[0][$_start + $_end][0],0,mb_strlen($source->smarty->left_delimiter,'latin1')+1, 'latin1') : substr($_result[0][$_start + $_end][0],0,strlen($source->smarty->left_delimiter)+1)) == $source->smarty->left_delimiter.'*') {
 125                             continue;
 126                         }
 127                         if (!strpos($_result[0][$_start + $_end][0], '/')) {
 128                             $_level++;
 129                         } else {
 130                             $_level--;
 131                         }
 132                     }
 133                     $_block_content = str_replace($source->smarty->left_delimiter . '$smarty.block.parent' . $source->smarty->right_delimiter, '%%%%SMARTY_PARENT%%%%',
 134                     ($this->mbstring_overload ? mb_substr($_content, $_result[0][$_start][1] + mb_strlen($_result[0][$_start][0], 'latin1'), $_result[0][$_start + $_end][1] - $_result[0][$_start][1] - + mb_strlen($_result[0][$_start][0], 'latin1'), 'latin1') : substr($_content, $_result[0][$_start][1] + strlen($_result[0][$_start][0]), $_result[0][$_start + $_end][1] - $_result[0][$_start][1] - + strlen($_result[0][$_start][0]))));
 135                     Smarty_Internal_Compile_Block::saveBlockData($_block_content, $_result[0][$_start][0], $source->template, $_component->filepath);
 136                     $_start = $_start + $_end + 1;
 137                 }
 138             } else {
 139                 return $_content;
 140             }
 141         }
 142     }
 143
 144     /**
 145     * Determine basename for compiled filename
 146     *
 147     * @param Smarty_Template_Source $source source object
 148     * @return string resource's basename
 149     */
 150     public function getBasename(Smarty_Template_Source $source)
 151     {
 152         return str_replace(':', '.', basename($source->filepath));
 153     }
 154
 155 }
 156
 157 ?>