lib/api/smarty/sysplugins/smarty_internal_extension_codeframe.php

   1 <?php
   2 /**
   3  * Smarty Internal Extension
   4  * This file contains the Smarty template extension to create a code frame
   5  *
   6  * @package    Smarty
   7  * @subpackage Template
   8  * @author     Uwe Tews
   9  */
  10
  11 /**
  12  * Class Smarty_Internal_Extension_CodeFrame
  13  * Create code frame for compiled and cached templates
  14  */
  15 class Smarty_Internal_Extension_CodeFrame
  16 {
  17     /**
  18      * Create code frame for compiled and cached templates
  19      *
  20      * @param Smarty_Internal_Template $_template
  21      * @param  string                  $content optional template content
  22      * @param  bool                    $cache   flag for cache file
  23      *
  24      * @return string
  25      */
  26     public static function create(Smarty_Internal_Template $_template, $content = '', $cache = false)
  27     {
  28         // build property code
  29         $_template->properties['has_nocache_code'] = $_template->has_nocache_code || !empty($_template->required_plugins['nocache']);
  30         $_template->properties['version'] = Smarty::SMARTY_VERSION;
  31         if (!isset($_template->properties['unifunc'])) {
  32             $_template->properties['unifunc'] = 'content_' . str_replace(array('.', ','), '_', uniqid('', true));
  33         }
  34         $properties = $_template->properties;
  35         if (!$cache) {
  36             unset($properties['tpl_function']);
  37             if (!empty($_template->compiler->templateProperties)) {
  38                 $properties['tpl_function'] = $_template->compiler->templateProperties['tpl_function'];
  39             }
  40         }
  41         $output = "<?php\n";
  42         $output .= "/*%%SmartyHeaderCode:{$_template->properties['nocache_hash']}%%*/\n";
  43         if ($_template->smarty->direct_access_security) {
  44             $output .= "if(!defined('SMARTY_DIR')) exit('no direct access allowed');\n";
  45         }
  46         $output .= "\$_valid = \$_smarty_tpl->decodeProperties(" . var_export($properties, true) . ',' . ($cache ? 'true' : 'false') . ");\n";
  47         $output .= "/*/%%SmartyHeaderCode%%*/\n";
  48         $output .= "if (\$_valid && !is_callable('{$_template->properties['unifunc']}')) {\n";
  49         $output .= "function {$_template->properties['unifunc']} (\$_smarty_tpl) {\n";
  50         // include code for plugins
  51         if (!$cache) {
  52             if (!empty($_template->required_plugins['compiled'])) {
  53                 foreach ($_template->required_plugins['compiled'] as $tmp) {
  54                     foreach ($tmp as $data) {
  55                         $file = addslashes($data['file']);
  56                         if (is_Array($data['function'])) {
  57                             $output .= "if (!is_callable(array('{$data['function'][0]}','{$data['function'][1]}'))) require_once '{$file}';\n";
  58                         } else {
  59                             $output .= "if (!is_callable('{$data['function']}')) require_once '{$file}';\n";
  60                         }
  61                     }
  62                 }
  63             }
  64             if (!empty($_template->required_plugins['nocache'])) {
  65                 $_template->has_nocache_code = true;
  66                 $output .= "echo '/*%%SmartyNocache:{$_template->properties['nocache_hash']}%%*/<?php \$_smarty = \$_smarty_tpl->smarty; ";
  67                 foreach ($_template->required_plugins['nocache'] as $tmp) {
  68                     foreach ($tmp as $data) {
  69                         $file = addslashes($data['file']);
  70                         if (is_Array($data['function'])) {
  71                             $output .= addslashes("if (!is_callable(array('{$data['function'][0]}','{$data['function'][1]}'))) require_once '{$file}';\n");
  72                         } else {
  73                             $output .= addslashes("if (!is_callable('{$data['function']}')) require_once '{$file}';\n");
  74                         }
  75                     }
  76                 }
  77                 $output .= "?>/*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%*/';\n";
  78             }
  79         }
  80         $output .= "?>\n";
  81         $output = self::appendCode($output, $content);
  82         return self::appendCode($output, "<?php }\n}\n?>");
  83     }
  84
  85     /**
  86      * Create code frame of compiled template function
  87      *
  88      * @param \Smarty_Internal_Template $_template
  89      * @param string                    $content
  90      *
  91      * @return string
  92      */
  93     public static function createFunctionFrame(Smarty_Internal_Template $_template, $content = '')
  94     {
  95         if (!isset($_template->properties['unifunc'])) {
  96             $_template->properties['unifunc'] = 'content_' . str_replace(array('.', ','), '_', uniqid('', true));
  97         }
  98         $output = "<?php\n";
  99         $output .= "/*%%SmartyHeaderCode:{$_template->properties['nocache_hash']}%%*/\n";
 100         $output .= "if (\$_valid && !is_callable('{$_template->properties['unifunc']}')) {\n";
 101         $output .= "function {$_template->properties['unifunc']} (\$_smarty_tpl) {\n";
 102         $output .= "?>\n" . $content;
 103         $output .= "<?php\n";
 104         $output .= "/*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%*/\n";
 105         $output .= "}\n}\n?>";
 106         return $output;
 107     }
 108
 109     /**
 110      * Append code segments and remove unneeded ?> <?php transitions
 111      *
 112      * @param string $left
 113      * @param string $right
 114      *
 115      * @return string
 116      */
 117     public static function appendCode($left, $right)
 118     {
 119         if (preg_match('/\s*\?>$/', $left) && preg_match('/^<\?php\s+/', $right)) {
 120             $left = preg_replace('/\s*\?>$/', "\n", $left);
 121             $left .= preg_replace('/^<\?php\s+/', '', $right);
 122         } else {
 123             $left .= $right;
 124         }
 125         return $left;
 126     }
 127 }