mirror of
https://github.com/smarty-php/smarty.git
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198 lines
8.7 KiB
PHP
198 lines
8.7 KiB
PHP
<?php
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/**
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* Smarty Internal Plugin Compile PHP Expression
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* Compiles any tag which will output an expression or variable
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*
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* @package Smarty
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* @subpackage Compiler
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* @author Uwe Tews
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*/
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/**
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* Smarty Internal Plugin Compile PHP Expression Class
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*
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* @package Smarty
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* @subpackage Compiler
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*/
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class Smarty_Internal_Compile_Private_Php extends Smarty_Internal_CompileBase
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{
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/**
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* Attribute definition: Overwrites base class.
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*
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* @var array
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* @see Smarty_Internal_CompileBase
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*/
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public $required_attributes = array('code', 'type');
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/**
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* Compiles code for generating output from any expression
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*
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* @param array $args array with attributes from parser
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* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
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* @param array $parameter array with compilation parameter
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*
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* @return string
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* @throws \SmartyException
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*/
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public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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$compiler->has_code = false;
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if ($_attr['type'] == 'xml') {
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$compiler->tag_nocache = true;
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$save = $compiler->template->has_nocache_code;
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$output = addcslashes($_attr['code'], "'\\");
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$compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Tag($compiler->parser, $compiler->processNocacheCode("<?php echo '" . $output . "';?>", $compiler, true)));
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$compiler->template->has_nocache_code = $save;
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return '';
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}
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if ($_attr['type'] != 'tag') {
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if ($compiler->php_handling == Smarty::PHP_REMOVE) {
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return '';
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} elseif ($compiler->php_handling == Smarty::PHP_QUOTE) {
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$output = preg_replace_callback('#(<\?(?:php|=)?)|(<%)|(<script\s+language\s*=\s*["\']?\s*php\s*["\']?\s*>)|(\?>)|(%>)|(<\/script>)#i', array($this,
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'quote'), $_attr['code']);
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$compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Text($compiler->parser, $output));
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return '';
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} elseif ($compiler->php_handling == Smarty::PHP_PASSTHRU || $_attr['type'] == 'unmatched') {
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$compiler->tag_nocache = true;
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$save = $compiler->template->has_nocache_code;
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$output = addcslashes($_attr['code'], "'\\");
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$compiler->parser->current_buffer->append_subtree(new Smarty_Internal_ParseTree_Tag($compiler->parser, $compiler->processNocacheCode("<?php echo '" . $output . "';?>", $compiler, true)));
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$compiler->template->has_nocache_code = $save;
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return '';
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} elseif ($compiler->php_handling == Smarty::PHP_ALLOW) {
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if (!($compiler->smarty instanceof SmartyBC)) {
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$compiler->trigger_template_error('$smarty->php_handling PHP_ALLOW not allowed. Use SmartyBC to enable it', $compiler->lex->taglineno);
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}
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$compiler->has_code = true;
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return $_attr['code'];
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} else {
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$compiler->trigger_template_error('Illegal $smarty->php_handling value', $compiler->lex->taglineno);
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}
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} else {
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$compiler->has_code = true;
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if (!($compiler->smarty instanceof SmartyBC)) {
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$compiler->trigger_template_error('{php}[/php} tags not allowed. Use SmartyBC to enable them', $compiler->lex->taglineno);
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}
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$ldel = preg_quote($compiler->smarty->left_delimiter, '#');
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$rdel = preg_quote($compiler->smarty->right_delimiter, '#');
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preg_match("#^({$ldel}php\\s*)((.)*?)({$rdel})#", $_attr['code'], $match);
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if (!empty($match[2])) {
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if ('nocache' == trim($match[2])) {
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$compiler->tag_nocache = true;
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} else {
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$compiler->trigger_template_error("illegal value of option flag \"{$match[2]}\"", $compiler->lex->taglineno);
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}
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}
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return preg_replace(array("#^{$ldel}\\s*php\\s*(.)*?{$rdel}#",
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"#{$ldel}\\s*/\\s*php\\s*{$rdel}$#"), array('<?php ', '?>'), $_attr['code']);
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}
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}
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/**
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* Lexer code for PHP tags
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*
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* This code has been moved from lexer here fo easier debugging and maintenance
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*
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* @param $lex
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*/
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public function parsePhp($lex)
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{
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$lex->token = Smarty_Internal_Templateparser::TP_PHP;
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$close = 0;
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$lex->taglineno = $lex->line;
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$closeTag = '?>';
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if (strpos($lex->value, '<?xml') === 0) {
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$lex->is_xml = true;
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$lex->token = Smarty_Internal_Templateparser::TP_NOCACHE;
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return;
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} elseif (strpos($lex->value, '<?') === 0) {
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$lex->phpType = 'php';
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} elseif (strpos($lex->value, '<%') === 0) {
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$lex->phpType = 'asp';
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$closeTag = '%>';
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} elseif (strpos($lex->value, '%>') === 0) {
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$lex->phpType = 'unmatched';
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} elseif (strpos($lex->value, '?>') === 0) {
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if ($lex->is_xml) {
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$lex->is_xml = false;
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$lex->token = Smarty_Internal_Templateparser::TP_NOCACHE;
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return;
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}
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$lex->phpType = 'unmatched';
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} elseif (strpos($lex->value, '<s') === 0) {
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$lex->phpType = 'script';
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$closeTag = '</script>';
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} elseif (strpos($lex->value, $lex->smarty->left_delimiter) === 0) {
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if ($lex->isAutoLiteral()) {
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$lex->token = Smarty_Internal_Templateparser::TP_TEXT;
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return;
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}
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$closeTag = "{$lex->smarty->left_delimiter}/php{$lex->smarty->right_delimiter}";
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if ($lex->value == $closeTag) {
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$lex->compiler->trigger_template_error("unexpected closing tag '{$closeTag}'");
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}
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$lex->phpType = 'tag';
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}
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if ($lex->phpType == 'unmatched') {
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return;
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}
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if (($lex->phpType == 'php' || $lex->phpType == 'asp') && ($lex->compiler->php_handling == Smarty::PHP_PASSTHRU || $lex->compiler->php_handling == Smarty::PHP_QUOTE)) {
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return;
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}
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$start = $lex->counter + strlen($lex->value);
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$body = true;
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if (preg_match('~' . preg_quote($closeTag, '~') . '~i', $lex->data, $match, PREG_OFFSET_CAPTURE, $start)) {
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$close = $match[0][1];
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} else {
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$lex->compiler->trigger_template_error("missing closing tag '{$closeTag}'");
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}
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while ($body) {
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if (preg_match('~([/][*])|([/][/][^\n]*)|(\'[^\'\\\\]*(?:\\.[^\'\\\\]*)*\')|("[^"\\\\]*(?:\\.[^"\\\\]*)*")~', $lex->data, $match, PREG_OFFSET_CAPTURE, $start)) {
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$value = $match[0][0];
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$from = $pos = $match[0][1];
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if ($pos > $close) {
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$body = false;
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} else {
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$start = $pos + strlen($value);
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$phpCommentStart = $value == '/*';
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if ($phpCommentStart) {
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$phpCommentEnd = preg_match('~([*][/])~', $lex->data, $match, PREG_OFFSET_CAPTURE, $start);
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if ($phpCommentEnd) {
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$pos2 = $match[0][1];
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$start = $pos2 + strlen($match[0][0]);
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}
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}
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while ($close > $pos && $close < $start) {
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if (preg_match('~' . preg_quote($closeTag, '~') . '~i', $lex->data, $match, PREG_OFFSET_CAPTURE, $from)) {
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$close = $match[0][1];
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$from = $close + strlen($match[0][0]);
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} else {
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$lex->compiler->trigger_template_error("missing closing tag '{$closeTag}'");
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}
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}
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if ($phpCommentStart && (!$phpCommentEnd || $pos2 > $close)) {
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$lex->taglineno = $lex->line + substr_count(substr($lex->data, $lex->counter, $start), "\n");
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$lex->compiler->trigger_template_error("missing PHP comment closing tag '*/'");
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}
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}
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} else {
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$body = false;
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}
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}
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$lex->value = substr($lex->data, $lex->counter, $close + strlen($closeTag) - $lex->counter);
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}
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/*
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* Call back function for $php_handling = PHP_QUOTE
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*
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*/
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private function quote($match)
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{
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return htmlspecialchars($match[0], ENT_QUOTES);
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}
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}
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