lib/api/smarty/sysplugins/smarty_internal_compile_private_php.php

   1 <?php
   2 /**
   3  * Smarty Internal Plugin Compile PHP Expression
   4  * Compiles any tag which will output an expression or variable
   5  *
   6  * @package    Smarty
   7  * @subpackage Compiler
   8  * @author     Uwe Tews
   9  */
  10
  11 /**
  12  * Smarty Internal Plugin Compile PHP Expression Class
  13  *
  14  * @package    Smarty
  15  * @subpackage Compiler
  16  */
  17 class Smarty_Internal_Compile_Private_Php extends Smarty_Internal_CompileBase
  18 {
  19     /**
  20      * Attribute definition: Overwrites base class.
  21      *
  22      * @var array
  23      * @see Smarty_Internal_CompileBase
  24      */
  25     public $required_attributes = array('code', 'type');
  26
  27     /**
  28      * Compiles code for generating output from any expression
  29      *
  30      * @param array                                 $args      array with attributes from parser
  31      * @param \Smarty_Internal_TemplateCompilerBase $compiler  compiler object
  32      * @param array                                 $parameter array with compilation parameter
  33      *
  34      * @return string
  35      * @throws \SmartyException
  36      */
  37     public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter)
  38     {
  39         // check and get attributes
  40         $_attr = $this->getAttributes($compiler, $args);
  41         $compiler->has_code = false;
  42         $this->asp_tags = (ini_get('asp_tags') != '0');
  43         if ($_attr['type'] == 'tag' && !($compiler->smarty instanceof SmartyBC)) {
  44             $compiler->trigger_template_error('{php}[/php} tags not allowed. Use SmartyBC to enable them', $compiler->lex->taglineno);
  45         }
  46         if ($_attr['type'] != 'tag') {
  47             if (isset($compiler->smarty->security_policy)) {
  48                 $this->php_handling = $compiler->smarty->security_policy->php_handling;
  49             } else {
  50                 $this->php_handling = $compiler->smarty->php_handling;
  51             }
  52             if ($this->php_handling == Smarty::PHP_REMOVE) {
  53                 $output = preg_replace(array('#^(<\?(?:php|=)?)|(<%)|(<script\s+language\s*=\s*["\']?\s*php\s*["\']?\s*>)#', '#(\?>)|(%>)|(<\/script>)$#'), '', $_attr['code']);
  54                 $compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Text($compiler->parser, $output));
  55                 return '';
  56             } elseif ($this->php_handling == Smarty::PHP_QUOTE) {
  57                 $output = preg_replace_callback(array('#^(<\?(?:php|=)?)|(<%)|(<script\s+language\s*=\s*["\']?\s*php\s*["\']?\s*>)#', '#(\?>)|(%>)|(<\/script>)$#'), function ($match) {return htmlspecialchars($match[0], ENT_QUOTES);}, $_attr['code']);
  58                 $compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Text($compiler->parser, $output));
  59                 return '';
  60             } elseif ($this->php_handling == Smarty::PHP_PASSTHRU || ($_attr['type'] == 'asp' && !$this->asp_tags) || $_attr['type'] == 'unmatched') {
  61                 $compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Text($compiler->parser, $_attr['code']));
  62                 return '';
  63             } elseif ($this->php_handling == Smarty::PHP_ALLOW) {
  64                 if (!($compiler->smarty instanceof SmartyBC)) {
  65                     $compiler->trigger_template_error('$smarty->php_handling PHP_ALLOW not allowed. Use SmartyBC to enable it', $compiler->lex->taglineno);
  66                 }
  67                 $compiler->has_code = true;
  68                 return $_attr['code'];
  69             } else {
  70                 $compiler->trigger_template_error('Illegal $smarty->php_handling value', $compiler->lex->taglineno);
  71             }
  72         } else {
  73             $compiler->has_code = true;
  74             $ldel = preg_quote($compiler->smarty->left_delimiter, '#');
  75             $rdel = preg_quote($compiler->smarty->right_delimiter, '#');
  76             if (!preg_match("#{$ldel}\\s*/\\s*php\\s*{$rdel}$#", $_attr['code'], $match)) {
  77                 $compiler->trigger_template_error('Missing {/php} closing tag', $compiler->lex->taglineno);
  78             }
  79             if (!preg_match("#^({$ldel}\\s*php\\s*)((.)*?)({$rdel})#", $_attr['code'], $match)) {
  80                 $compiler->trigger_template_error('Missing {php} open tag', $compiler->lex->taglineno);
  81             }
  82             if (!empty($match[2])) {
  83                 if ('nocache' == trim($match[2])) {
  84                     $compiler->tag_nocache = true;
  85                 } else {
  86                     $compiler->trigger_template_error("illegal value of option flag \"{$match[2]}\"", $compiler->lex->taglineno);
  87                 }
  88             }
  89             return preg_replace(array("#^{$ldel}\\s*php\\s*(.)*?{$rdel}#", "#{$ldel}\\s*/\\s*php\\s*{$rdel}$#"), array('<?php ', '?>'), $_attr['code']);
  90         }
  91     }
  92 }