Blame | Last modification | View Log
<?php
/**
* Smarty Internal Plugin Smarty Template Compiler Base
* This file contains the basic classes and methods for compiling Smarty templates with lexer/parser
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* Main abstract compiler class
*
* @package Smarty
* @subpackage Compiler
*
* @property Smarty_Internal_SmartyTemplateCompiler $prefixCompiledCode = ''
* @property Smarty_Internal_SmartyTemplateCompiler $postfixCompiledCode = ''
* @method registerPostCompileCallback($callback, $parameter = array(), $key = null, $replace = false)
* @method unregisterPostCompileCallback($key)
*/
abstract class Smarty_Internal_TemplateCompilerBase
{
/**
* compile tag objects cache
*
* @var array
*/
public static $_tag_objects = array();
/**
* counter for prefix variable number
*
* @var int
*/
public static $prefixVariableNumber = 0;
/**
* Smarty object
*
* @var Smarty
*/
public $smarty = null;
/**
* Parser object
*
* @var Smarty_Internal_Templateparser
*/
public $parser = null;
/**
* hash for nocache sections
*
* @var mixed
*/
public $nocache_hash = null;
/**
* suppress generation of nocache code
*
* @var bool
*/
public $suppressNocacheProcessing = false;
/**
* caching enabled (copied from template object)
*
* @var int
*/
public $caching = 0;
/**
* tag stack
*
* @var array
*/
public $_tag_stack = array();
/**
* tag stack count
*
* @var array
*/
public $_tag_stack_count = array();
/**
* Plugins used by template
*
* @var array
*/
public $required_plugins = array('compiled' => array(), 'nocache' => array());
/**
* Required plugins stack
*
* @var array
*/
public $required_plugins_stack = array();
/**
* current template
*
* @var Smarty_Internal_Template
*/
public $template = null;
/**
* merged included sub template data
*
* @var array
*/
public $mergedSubTemplatesData = array();
/**
* merged sub template code
*
* @var array
*/
public $mergedSubTemplatesCode = array();
/**
* collected template properties during compilation
*
* @var array
*/
public $templateProperties = array();
/**
* source line offset for error messages
*
* @var int
*/
public $trace_line_offset = 0;
/**
* trace uid
*
* @var string
*/
public $trace_uid = '';
/**
* trace file path
*
* @var string
*/
public $trace_filepath = '';
/**
* stack for tracing file and line of nested {block} tags
*
* @var array
*/
public $trace_stack = array();
/**
* plugins loaded by default plugin handler
*
* @var array
*/
public $default_handler_plugins = array();
/**
* saved preprocessed modifier list
*
* @var mixed
*/
public $default_modifier_list = null;
/**
* force compilation of complete template as nocache
*
* @var boolean
*/
public $forceNocache = false;
/**
* flag if compiled template file shall we written
*
* @var bool
*/
public $write_compiled_code = true;
/**
* Template functions
*
* @var array
*/
public $tpl_function = array();
/**
* called sub functions from template function
*
* @var array
*/
public $called_functions = array();
/**
* compiled template or block function code
*
* @var string
*/
public $blockOrFunctionCode = '';
/**
* php_handling setting either from Smarty or security
*
* @var int
*/
public $php_handling = 0;
/**
* flags for used modifier plugins
*
* @var array
*/
public $modifier_plugins = array();
/**
* type of already compiled modifier
*
* @var array
*/
public $known_modifier_type = array();
/**
* parent compiler object for merged subtemplates and template functions
*
* @var Smarty_Internal_TemplateCompilerBase
*/
public $parent_compiler = null;
/**
* Flag true when compiling nocache section
*
* @var bool
*/
public $nocache = false;
/**
* Flag true when tag is compiled as nocache
*
* @var bool
*/
public $tag_nocache = false;
/**
* Compiled tag prefix code
*
* @var array
*/
public $prefix_code = array();
/**
* used prefix variables by current compiled tag
*
* @var array
*/
public $usedPrefixVariables = array();
/**
* Prefix code stack
*
* @var array
*/
public $prefixCodeStack = array();
/**
* Tag has compiled code
*
* @var bool
*/
public $has_code = false;
/**
* A variable string was compiled
*
* @var bool
*/
public $has_variable_string = false;
/**
* Stack for {setfilter} {/setfilter}
*
* @var array
*/
public $variable_filter_stack = array();
/**
* variable filters for {setfilter} {/setfilter}
*
* @var array
*/
public $variable_filters = array();
/**
* Nesting count of looping tags like {foreach}, {for}, {section}, {while}
*
* @var int
*/
public $loopNesting = 0;
/**
* Strip preg pattern
*
* @var string
*/
public $stripRegEx = '![\t ]*[\r\n]+[\t ]*!';
/**
* plugin search order
*
* @var array
*/
public $plugin_search_order = array(
'function',
'block',
'compiler',
'class'
);
/**
* General storage area for tag compiler plugins
*
* @var array
*/
public $_cache = array();
/**
* Lexer preg pattern for left delimiter
*
* @var string
*/
private $ldelPreg = '[{]';
/**
* Lexer preg pattern for right delimiter
*
* @var string
*/
private $rdelPreg = '[}]';
/**
* Length of right delimiter
*
* @var int
*/
private $rdelLength = 0;
/**
* Length of left delimiter
*
* @var int
*/
private $ldelLength = 0;
/**
* Lexer preg pattern for user literals
*
* @var string
*/
private $literalPreg = '';
/**
* Initialize compiler
*
* @param Smarty $smarty global instance
*/
public function __construct(Smarty $smarty)
{
$this->smarty = $smarty;
$this->nocache_hash = str_replace(
array(
'.',
','
),
'_',
uniqid(mt_rand(), true)
);
}
/**
* Method to compile a Smarty template
*
* @param Smarty_Internal_Template $template template object to compile
* @param bool $nocache true is shall be compiled in nocache mode
* @param null|Smarty_Internal_TemplateCompilerBase $parent_compiler
*
* @return bool true if compiling succeeded, false if it failed
* @throws \Exception
*/
public function compileTemplate(
Smarty_Internal_Template $template,
$nocache = null,
Smarty_Internal_TemplateCompilerBase $parent_compiler = null
) {
// get code frame of compiled template
$_compiled_code = $template->smarty->ext->_codeFrame->create(
$template,
$this->compileTemplateSource(
$template,
$nocache,
$parent_compiler
),
$this->postFilter($this->blockOrFunctionCode) .
join('', $this->mergedSubTemplatesCode),
false,
$this
);
return $_compiled_code;
}
/**
* Compile template source and run optional post filter
*
* @param \Smarty_Internal_Template $template
* @param null|bool $nocache flag if template must be compiled in nocache mode
* @param \Smarty_Internal_TemplateCompilerBase $parent_compiler
*
* @return string
* @throws \Exception
*/
public function compileTemplateSource(
Smarty_Internal_Template $template,
$nocache = null,
Smarty_Internal_TemplateCompilerBase $parent_compiler = null
) {
try {
// save template object in compiler class
$this->template = $template;
if (property_exists($this->template->smarty, 'plugin_search_order')) {
$this->plugin_search_order = $this->template->smarty->plugin_search_order;
}
if ($this->smarty->debugging) {
if (!isset($this->smarty->_debug)) {
$this->smarty->_debug = new Smarty_Internal_Debug();
}
$this->smarty->_debug->start_compile($this->template);
}
if (isset($this->template->smarty->security_policy)) {
$this->php_handling = $this->template->smarty->security_policy->php_handling;
} else {
$this->php_handling = $this->template->smarty->php_handling;
}
$this->parent_compiler = $parent_compiler ? $parent_compiler : $this;
$nocache = isset($nocache) ? $nocache : false;
if (empty($template->compiled->nocache_hash)) {
$template->compiled->nocache_hash = $this->nocache_hash;
} else {
$this->nocache_hash = $template->compiled->nocache_hash;
}
$this->caching = $template->caching;
// flag for nocache sections
$this->nocache = $nocache;
$this->tag_nocache = false;
// reset has nocache code flag
$this->template->compiled->has_nocache_code = false;
$this->has_variable_string = false;
$this->prefix_code = array();
// add file dependency
if ($this->smarty->merge_compiled_includes || $this->template->source->handler->checkTimestamps()) {
$this->parent_compiler->template->compiled->file_dependency[ $this->template->source->uid ] =
array(
$this->template->source->filepath,
$this->template->source->getTimeStamp(),
$this->template->source->type,
);
}
$this->smarty->_current_file = $this->template->source->filepath;
// get template source
if (!empty($this->template->source->components)) {
// we have array of inheritance templates by extends: resource
// generate corresponding source code sequence
$_content =
Smarty_Internal_Compile_Extends::extendsSourceArrayCode($this->template);
} else {
// get template source
$_content = $this->template->source->getContent();
}
$_compiled_code = $this->postFilter($this->doCompile($this->preFilter($_content), true));
if (!empty($this->required_plugins[ 'compiled' ]) || !empty($this->required_plugins[ 'nocache' ])) {
$_compiled_code = '<?php ' . $this->compileRequiredPlugins() . "?>\n" . $_compiled_code;
}
} catch (Exception $e) {
if ($this->smarty->debugging) {
$this->smarty->_debug->end_compile($this->template);
}
$this->_tag_stack = array();
// free memory
$this->parent_compiler = null;
$this->template = null;
$this->parser = null;
throw $e;
}
if ($this->smarty->debugging) {
$this->smarty->_debug->end_compile($this->template);
}
$this->parent_compiler = null;
$this->parser = null;
return $_compiled_code;
}
/**
* Optionally process compiled code by post filter
*
* @param string $code compiled code
*
* @return string
* @throws \SmartyException
*/
public function postFilter($code)
{
// run post filter if on code
if (!empty($code)
&& (isset($this->smarty->autoload_filters[ 'post' ]) || isset($this->smarty->registered_filters[ 'post' ]))
) {
return $this->smarty->ext->_filterHandler->runFilter('post', $code, $this->template);
} else {
return $code;
}
}
/**
* Run optional prefilter
*
* @param string $_content template source
*
* @return string
* @throws \SmartyException
*/
public function preFilter($_content)
{
// run pre filter if required
if ($_content !== ''
&& ((isset($this->smarty->autoload_filters[ 'pre' ]) || isset($this->smarty->registered_filters[ 'pre' ])))
) {
return $this->smarty->ext->_filterHandler->runFilter('pre', $_content, $this->template);
} else {
return $_content;
}
}
/**
* Compile Tag
* This is a call back from the lexer/parser
*
* Save current prefix code
* Compile tag
* Merge tag prefix code with saved one
* (required nested tags in attributes)
*
* @param string $tag tag name
* @param array $args array with tag attributes
* @param array $parameter array with compilation parameter
*
* @throws SmartyCompilerException
* @throws SmartyException
* @return string compiled code
*/
public function compileTag($tag, $args, $parameter = array())
{
$this->prefixCodeStack[] = $this->prefix_code;
$this->prefix_code = array();
$result = $this->compileTag2($tag, $args, $parameter);
$this->prefix_code = array_merge($this->prefix_code, array_pop($this->prefixCodeStack));
return $result;
}
/**
* compile variable
*
* @param string $variable
*
* @return string
*/
public function compileVariable($variable)
{
if (!strpos($variable, '(')) {
// not a variable variable
$var = trim($variable, '\'');
$this->tag_nocache = $this->tag_nocache |
$this->template->ext->getTemplateVars->_getVariable(
$this->template,
$var,
null,
true,
false
)->nocache;
// todo $this->template->compiled->properties['variables'][$var] = $this->tag_nocache | $this->nocache;
}
return '$_smarty_tpl->tpl_vars[' . $variable . ']->value';
}
/**
* compile config variable
*
* @param string $variable
*
* @return string
*/
public function compileConfigVariable($variable)
{
// return '$_smarty_tpl->config_vars[' . $variable . ']';
return '$_smarty_tpl->smarty->ext->configLoad->_getConfigVariable($_smarty_tpl, ' . $variable . ')';
}
/**
* compile PHP function call
*
* @param string $name
* @param array $parameter
*
* @return string
* @throws \SmartyCompilerException
*/
public function compilePHPFunctionCall($name, $parameter)
{
if (!$this->smarty->security_policy || $this->smarty->security_policy->isTrustedPhpFunction($name, $this)) {
if (strcasecmp($name, 'isset') === 0 || strcasecmp($name, 'empty') === 0
|| strcasecmp($name, 'array') === 0 || is_callable($name)
) {
$func_name = strtolower($name);
$par = implode(',', $parameter);
$parHasFuction = strpos($par, '(') !== false;
if ($func_name === 'isset') {
if (count($parameter) === 0) {
$this->trigger_template_error('Illegal number of parameter in "isset()"');
}
if ($parHasFuction) {
$pa = array();
foreach ($parameter as $p) {
$pa[] = (strpos($p, '(') === false) ? ('isset(' . $p . ')') : ('(' . $p . ' !== null )');
}
return '(' . implode(' && ', $pa) . ')';
} else {
$isset_par = str_replace("')->value", "',null,true,false)->value", $par);
}
return $name . '(' . $isset_par . ')';
} elseif (in_array(
$func_name,
array(
'empty',
'reset',
'current',
'end',
'prev',
'next'
)
)
) {
if (count($parameter) !== 1) {
$this->trigger_template_error("Illegal number of parameter in '{$func_name()}'");
}
if ($func_name === 'empty') {
if ($parHasFuction && version_compare(PHP_VERSION, '5.5.0', '<')) {
return '(' . $parameter[ 0 ] . ' === false )';
} else {
return $func_name . '(' .
str_replace("')->value", "',null,true,false)->value", $parameter[ 0 ]) . ')';
}
} else {
return $func_name . '(' . $parameter[ 0 ] . ')';
}
} else {
return $name . '(' . implode(',', $parameter) . ')';
}
} else {
$this->trigger_template_error("unknown function '{$name}'");
}
}
}
/**
* This method is called from parser to process a text content section
* - remove text from inheritance child templates as they may generate output
* - strip text if strip is enabled
*
* @param string $text
*
* @return null|\Smarty_Internal_ParseTree_Text
*/
public function processText($text)
{
if ((string)$text != '') {
$store = array();
$_store = 0;
if ($this->parser->strip) {
if (strpos($text, '<') !== false) {
// capture html elements not to be messed with
$_offset = 0;
if (preg_match_all(
'#(<script[^>]*>.*?</script[^>]*>)|(<textarea[^>]*>.*?</textarea[^>]*>)|(<pre[^>]*>.*?</pre[^>]*>)#is',
$text,
$matches,
PREG_OFFSET_CAPTURE | PREG_SET_ORDER
)
) {
foreach ($matches as $match) {
$store[] = $match[ 0 ][ 0 ];
$_length = strlen($match[ 0 ][ 0 ]);
$replace = '@!@SMARTY:' . $_store . ':SMARTY@!@';
$text = substr_replace($text, $replace, $match[ 0 ][ 1 ] - $_offset, $_length);
$_offset += $_length - strlen($replace);
$_store++;
}
}
$expressions = array(// replace multiple spaces between tags by a single space
'#(:SMARTY@!@|>)[\040\011]+(?=@!@SMARTY:|<)#s' => '\1 \2',
// remove newline between tags
'#(:SMARTY@!@|>)[\040\011]*[\n]\s*(?=@!@SMARTY:|<)#s' => '\1\2',
// remove multiple spaces between attributes (but not in attribute values!)
'#(([a-z0-9]\s*=\s*("[^"]*?")|(\'[^\']*?\'))|<[a-z0-9_]+)\s+([a-z/>])#is' => '\1 \5',
'#>[\040\011]+$#Ss' => '> ',
'#>[\040\011]*[\n]\s*$#Ss' => '>',
$this->stripRegEx => '',
);
$text = preg_replace(array_keys($expressions), array_values($expressions), $text);
$_offset = 0;
if (preg_match_all(
'#@!@SMARTY:([0-9]+):SMARTY@!@#is',
$text,
$matches,
PREG_OFFSET_CAPTURE | PREG_SET_ORDER
)
) {
foreach ($matches as $match) {
$_length = strlen($match[ 0 ][ 0 ]);
$replace = $store[ $match[ 1 ][ 0 ] ];
$text = substr_replace($text, $replace, $match[ 0 ][ 1 ] + $_offset, $_length);
$_offset += strlen($replace) - $_length;
$_store++;
}
}
} else {
$text = preg_replace($this->stripRegEx, '', $text);
}
}
return new Smarty_Internal_ParseTree_Text($text);
}
return null;
}
/**
* lazy loads internal compile plugin for tag and calls the compile method
* compile objects cached for reuse.
* class name format: Smarty_Internal_Compile_TagName
* plugin filename format: Smarty_Internal_TagName.php
*
* @param string $tag tag name
* @param array $args list of tag attributes
* @param mixed $param1 optional parameter
* @param mixed $param2 optional parameter
* @param mixed $param3 optional parameter
*
* @return bool|string compiled code or false
* @throws \SmartyCompilerException
*/
public function callTagCompiler($tag, $args, $param1 = null, $param2 = null, $param3 = null)
{
/* @var Smarty_Internal_CompileBase $tagCompiler */
$tagCompiler = $this->getTagCompiler($tag);
// compile this tag
return $tagCompiler === false ? false : $tagCompiler->compile($args, $this, $param1, $param2, $param3);
}
/**
* lazy loads internal compile plugin for tag compile objects cached for reuse.
*
* class name format: Smarty_Internal_Compile_TagName
* plugin filename format: Smarty_Internal_TagName.php
*
* @param string $tag tag name
*
* @return bool|\Smarty_Internal_CompileBase tag compiler object or false if not found
*/
public function getTagCompiler($tag)
{
// re-use object if already exists
if (!isset(self::$_tag_objects[ $tag ])) {
// lazy load internal compiler plugin
$_tag = explode('_', $tag);
$_tag = array_map('ucfirst', $_tag);
$class_name = 'Smarty_Internal_Compile_' . implode('_', $_tag);
if (class_exists($class_name)
&& (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this))
) {
self::$_tag_objects[ $tag ] = new $class_name;
} else {
self::$_tag_objects[ $tag ] = false;
}
}
return self::$_tag_objects[ $tag ];
}
/**
* Check for plugins and return function name
*
* @param $plugin_name
* @param string $plugin_type type of plugin
*
* @return string call name of function
* @throws \SmartyException
*/
public function getPlugin($plugin_name, $plugin_type)
{
$function = null;
if ($this->caching && ($this->nocache || $this->tag_nocache)) {
if (isset($this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ])) {
$function =
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ][ 'function' ];
} elseif (isset($this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ])) {
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ] =
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ];
$function =
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ][ 'function' ];
}
} else {
if (isset($this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ])) {
$function =
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ][ 'function' ];
} elseif (isset($this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ])) {
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ] =
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ];
$function =
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ][ 'function' ];
}
}
if (isset($function)) {
if ($plugin_type === 'modifier') {
$this->modifier_plugins[ $plugin_name ] = true;
}
return $function;
}
// loop through plugin dirs and find the plugin
$function = 'smarty_' . $plugin_type . '_' . $plugin_name;
$file = $this->smarty->loadPlugin($function, false);
if (is_string($file)) {
if ($this->caching && ($this->nocache || $this->tag_nocache)) {
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ][ 'file' ] =
$file;
$this->required_plugins[ 'nocache' ][ $plugin_name ][ $plugin_type ][ 'function' ] =
$function;
} else {
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ][ 'file' ] =
$file;
$this->required_plugins[ 'compiled' ][ $plugin_name ][ $plugin_type ][ 'function' ] =
$function;
}
if ($plugin_type === 'modifier') {
$this->modifier_plugins[ $plugin_name ] = true;
}
return $function;
}
if (is_callable($function)) {
// plugin function is defined in the script
return $function;
}
return false;
}
/**
* Check for plugins by default plugin handler
*
* @param string $tag name of tag
* @param string $plugin_type type of plugin
*
* @return bool true if found
* @throws \SmartyCompilerException
*/
public function getPluginFromDefaultHandler($tag, $plugin_type)
{
$callback = null;
$script = null;
$cacheable = true;
$result = call_user_func_array(
$this->smarty->default_plugin_handler_func,
array(
$tag,
$plugin_type,
$this->template,
&$callback,
&$script,
&$cacheable,
)
);
if ($result) {
$this->tag_nocache = $this->tag_nocache || !$cacheable;
if ($script !== null) {
if (is_file($script)) {
if ($this->caching && ($this->nocache || $this->tag_nocache)) {
$this->required_plugins[ 'nocache' ][ $tag ][ $plugin_type ][ 'file' ] =
$script;
$this->required_plugins[ 'nocache' ][ $tag ][ $plugin_type ][ 'function' ] =
$callback;
} else {
$this->required_plugins[ 'compiled' ][ $tag ][ $plugin_type ][ 'file' ] =
$script;
$this->required_plugins[ 'compiled' ][ $tag ][ $plugin_type ][ 'function' ] =
$callback;
}
include_once $script;
} else {
$this->trigger_template_error("Default plugin handler: Returned script file '{$script}' for '{$tag}' not found");
}
}
if (is_callable($callback)) {
$this->default_handler_plugins[ $plugin_type ][ $tag ] = array(
$callback,
true,
array()
);
return true;
} else {
$this->trigger_template_error("Default plugin handler: Returned callback for '{$tag}' not callable");
}
}
return false;
}
/**
* Append code segments and remove unneeded ?> <?php transitions
*
* @param string $left
* @param string $right
*
* @return string
*/
public function appendCode($left, $right)
{
if (preg_match('/\s*\?>\s?$/D', $left) && preg_match('/^<\?php\s+/', $right)) {
$left = preg_replace('/\s*\?>\s?$/D', "\n", $left);
$left .= preg_replace('/^<\?php\s+/', '', $right);
} else {
$left .= $right;
}
return $left;
}
/**
* Inject inline code for nocache template sections
* This method gets the content of each template element from the parser.
* If the content is compiled code and it should be not cached the code is injected
* into the rendered output.
*
* @param string $content content of template element
* @param boolean $is_code true if content is compiled code
*
* @return string content
*/
public function processNocacheCode($content, $is_code)
{
// If the template is not evaluated and we have a nocache section and or a nocache tag
if ($is_code && !empty($content)) {
// generate replacement code
if ((!($this->template->source->handler->recompiled) || $this->forceNocache) && $this->caching
&& !$this->suppressNocacheProcessing && ($this->nocache || $this->tag_nocache)
) {
$this->template->compiled->has_nocache_code = true;
$_output = addcslashes($content, '\'\\');
$_output = str_replace('^#^', '\'', $_output);
$_output =
"<?php echo '/*%%SmartyNocache:{$this->nocache_hash}%%*/{$_output}/*/%%SmartyNocache:{$this->nocache_hash}%%*/';?>\n";
// make sure we include modifier plugins for nocache code
foreach ($this->modifier_plugins as $plugin_name => $dummy) {
if (isset($this->required_plugins[ 'compiled' ][ $plugin_name ][ 'modifier' ])) {
$this->required_plugins[ 'nocache' ][ $plugin_name ][ 'modifier' ] =
$this->required_plugins[ 'compiled' ][ $plugin_name ][ 'modifier' ];
}
}
} else {
$_output = $content;
}
} else {
$_output = $content;
}
$this->modifier_plugins = array();
$this->suppressNocacheProcessing = false;
$this->tag_nocache = false;
return $_output;
}
/**
* Get Id
*
* @param string $input
*
* @return bool|string
*/
public function getId($input)
{
if (preg_match('~^([\'"]*)([0-9]*[a-zA-Z_]\w*)\1$~', $input, $match)) {
return $match[ 2 ];
}
return false;
}
/**
* Get variable name from string
*
* @param string $input
*
* @return bool|string
*/
public function getVariableName($input)
{
if (preg_match('~^[$]_smarty_tpl->tpl_vars\[[\'"]*([0-9]*[a-zA-Z_]\w*)[\'"]*\]->value$~', $input, $match)) {
return $match[ 1 ];
}
return false;
}
/**
* Set nocache flag in variable or create new variable
*
* @param string $varName
*/
public function setNocacheInVariable($varName)
{
// create nocache var to make it know for further compiling
if ($_var = $this->getId($varName)) {
if (isset($this->template->tpl_vars[ $_var ])) {
$this->template->tpl_vars[ $_var ] = clone $this->template->tpl_vars[ $_var ];
$this->template->tpl_vars[ $_var ]->nocache = true;
} else {
$this->template->tpl_vars[ $_var ] = new Smarty_Variable(null, true);
}
}
}
/**
* @param array $_attr tag attributes
* @param array $validScopes
*
* @return int|string
* @throws \SmartyCompilerException
*/
public function convertScope($_attr, $validScopes)
{
$_scope = 0;
if (isset($_attr[ 'scope' ])) {
$_scopeName = trim($_attr[ 'scope' ], '\'"');
if (is_numeric($_scopeName) && in_array($_scopeName, $validScopes)) {
$_scope = $_scopeName;
} elseif (is_string($_scopeName)) {
$_scopeName = trim($_scopeName, '\'"');
$_scope = isset($validScopes[ $_scopeName ]) ? $validScopes[ $_scopeName ] : false;
} else {
$_scope = false;
}
if ($_scope === false) {
$err = var_export($_scopeName, true);
$this->trigger_template_error("illegal value '{$err}' for \"scope\" attribute", null, true);
}
}
return $_scope;
}
/**
* Generate nocache code string
*
* @param string $code PHP code
*
* @return string
*/
public function makeNocacheCode($code)
{
return "echo '/*%%SmartyNocache:{$this->nocache_hash}%%*/<?php " .
str_replace('^#^', '\'', addcslashes($code, '\'\\')) .
"?>/*/%%SmartyNocache:{$this->nocache_hash}%%*/';\n";
}
/**
* display compiler error messages without dying
* If parameter $args is empty it is a parser detected syntax error.
* In this case the parser is called to obtain information about expected tokens.
* If parameter $args contains a string this is used as error message
*
* @param string $args individual error message or null
* @param string $line line-number
* @param null|bool $tagline if true the line number of last tag
*
* @throws \SmartyCompilerException when an unexpected token is found
*/
public function trigger_template_error($args = null, $line = null, $tagline = null)
{
$lex = $this->parser->lex;
if ($tagline === true) {
// get line number of Tag
$line = $lex->taglineno;
} elseif (!isset($line)) {
// get template source line which has error
$line = $lex->line;
} else {
$line = (int)$line;
}
if (in_array(
$this->template->source->type,
array(
'eval',
'string'
)
)
) {
$templateName = $this->template->source->type . ':' . trim(
preg_replace(
'![\t\r\n]+!',
' ',
strlen($lex->data) > 40 ?
substr($lex->data, 0, 40) .
'...' : $lex->data
)
);
} else {
$templateName = $this->template->source->type . ':' . $this->template->source->filepath;
}
// $line += $this->trace_line_offset;
$match = preg_split("/\n/", $lex->data);
$error_text =
'Syntax error in template "' . (empty($this->trace_filepath) ? $templateName : $this->trace_filepath) .
'" on line ' . ($line + $this->trace_line_offset) . ' "' .
trim(preg_replace('![\t\r\n]+!', ' ', $match[ $line - 1 ])) . '" ';
if (isset($args)) {
// individual error message
$error_text .= $args;
} else {
$expect = array();
// expected token from parser
$error_text .= ' - Unexpected "' . $lex->value . '"';
if (count($this->parser->yy_get_expected_tokens($this->parser->yymajor)) <= 4) {
foreach ($this->parser->yy_get_expected_tokens($this->parser->yymajor) as $token) {
$exp_token = $this->parser->yyTokenName[ $token ];
if (isset($lex->smarty_token_names[ $exp_token ])) {
// token type from lexer
$expect[] = '"' . $lex->smarty_token_names[ $exp_token ] . '"';
} else {
// otherwise internal token name
$expect[] = $this->parser->yyTokenName[ $token ];
}
}
$error_text .= ', expected one of: ' . implode(' , ', $expect);
}
}
if ($this->smarty->_parserdebug) {
$this->parser->errorRunDown();
echo ob_get_clean();
flush();
}
$e = new SmartyCompilerException($error_text);
$e->line = $line;
$e->source = trim(preg_replace('![\t\r\n]+!', ' ', $match[ $line - 1 ]));
$e->desc = $args;
$e->template = $this->template->source->filepath;
throw $e;
}
/**
* Return var_export() value with all white spaces removed
*
* @param mixed $value
*
* @return string
*/
public function getVarExport($value)
{
return preg_replace('/\s/', '', var_export($value, true));
}
/**
* enter double quoted string
* - save tag stack count
*/
public function enterDoubleQuote()
{
array_push($this->_tag_stack_count, $this->getTagStackCount());
}
/**
* Return tag stack count
*
* @return int
*/
public function getTagStackCount()
{
return count($this->_tag_stack);
}
/**
* @param $lexerPreg
*
* @return mixed
*/
public function replaceDelimiter($lexerPreg)
{
return str_replace(
array('SMARTYldel', 'SMARTYliteral', 'SMARTYrdel', 'SMARTYautoliteral', 'SMARTYal'),
array(
$this->ldelPreg, $this->literalPreg, $this->rdelPreg,
$this->smarty->getAutoLiteral() ? '{1,}' : '{9}',
$this->smarty->getAutoLiteral() ? '' : '\\s*'
),
$lexerPreg
);
}
/**
* Build lexer regular expressions for left and right delimiter and user defined literals
*/
public function initDelimiterPreg()
{
$ldel = $this->smarty->getLeftDelimiter();
$this->ldelLength = strlen($ldel);
$this->ldelPreg = '';
foreach (str_split($ldel, 1) as $chr) {
$this->ldelPreg .= '[' . preg_quote($chr,'/') . ']';
}
$rdel = $this->smarty->getRightDelimiter();
$this->rdelLength = strlen($rdel);
$this->rdelPreg = '';
foreach (str_split($rdel, 1) as $chr) {
$this->rdelPreg .= '[' . preg_quote($chr,'/') . ']';
}
$literals = $this->smarty->getLiterals();
if (!empty($literals)) {
foreach ($literals as $key => $literal) {
$literalPreg = '';
foreach (str_split($literal, 1) as $chr) {
$literalPreg .= '[' . preg_quote($chr,'/') . ']';
}
$literals[ $key ] = $literalPreg;
}
$this->literalPreg = '|' . implode('|', $literals);
} else {
$this->literalPreg = '';
}
}
/**
* leave double quoted string
* - throw exception if block in string was not closed
*
* @throws \SmartyCompilerException
*/
public function leaveDoubleQuote()
{
if (array_pop($this->_tag_stack_count) !== $this->getTagStackCount()) {
$tag = $this->getOpenBlockTag();
$this->trigger_template_error(
"unclosed '{{$tag}}' in doubled quoted string",
null,
true
);
}
}
/**
* Get left delimiter preg
*
* @return string
*/
public function getLdelPreg()
{
return $this->ldelPreg;
}
/**
* Get right delimiter preg
*
* @return string
*/
public function getRdelPreg()
{
return $this->rdelPreg;
}
/**
* Get length of left delimiter
*
* @return int
*/
public function getLdelLength()
{
return $this->ldelLength;
}
/**
* Get length of right delimiter
*
* @return int
*/
public function getRdelLength()
{
return $this->rdelLength;
}
/**
* Get name of current open block tag
*
* @return string|boolean
*/
public function getOpenBlockTag()
{
$tagCount = $this->getTagStackCount();
if ($tagCount) {
return $this->_tag_stack[ $tagCount - 1 ][ 0 ];
} else {
return false;
}
}
/**
* Check if $value contains variable elements
*
* @param mixed $value
*
* @return bool|int
*/
public function isVariable($value)
{
if (is_string($value)) {
return preg_match('/[$(]/', $value);
}
if (is_bool($value) || is_numeric($value)) {
return false;
}
if (is_array($value)) {
foreach ($value as $k => $v) {
if ($this->isVariable($k) || $this->isVariable($v)) {
return true;
}
}
return false;
}
return false;
}
/**
* Get new prefix variable name
*
* @return string
*/
public function getNewPrefixVariable()
{
++self::$prefixVariableNumber;
return $this->getPrefixVariable();
}
/**
* Get current prefix variable name
*
* @return string
*/
public function getPrefixVariable()
{
return '$_prefixVariable' . self::$prefixVariableNumber;
}
/**
* append code to prefix buffer
*
* @param string $code
*/
public function appendPrefixCode($code)
{
$this->prefix_code[] = $code;
}
/**
* get prefix code string
*
* @return string
*/
public function getPrefixCode()
{
$code = '';
$prefixArray = array_merge($this->prefix_code, array_pop($this->prefixCodeStack));
$this->prefixCodeStack[] = array();
foreach ($prefixArray as $c) {
$code = $this->appendCode($code, $c);
}
$this->prefix_code = array();
return $code;
}
/**
* Save current required plugins
*
* @param bool $init if true init required plugins
*/
public function saveRequiredPlugins($init = false)
{
$this->required_plugins_stack[] = $this->required_plugins;
if ($init) {
$this->required_plugins = array('compiled' => array(), 'nocache' => array());
}
}
/**
* Restore required plugins
*/
public function restoreRequiredPlugins()
{
$this->required_plugins = array_pop($this->required_plugins_stack);
}
/**
* Compile code to call Smarty_Internal_Template::_checkPlugins()
* for required plugins
*
* @return string
*/
public function compileRequiredPlugins()
{
$code = $this->compileCheckPlugins($this->required_plugins[ 'compiled' ]);
if ($this->caching && !empty($this->required_plugins[ 'nocache' ])) {
$code .= $this->makeNocacheCode($this->compileCheckPlugins($this->required_plugins[ 'nocache' ]));
}
return $code;
}
/**
* Compile code to call Smarty_Internal_Template::_checkPlugins
* - checks if plugin is callable require otherwise
*
* @param $requiredPlugins
*
* @return string
*/
public function compileCheckPlugins($requiredPlugins)
{
if (!empty($requiredPlugins)) {
$plugins = array();
foreach ($requiredPlugins as $plugin) {
foreach ($plugin as $data) {
$plugins[] = $data;
}
}
return '$_smarty_tpl->_checkPlugins(' . $this->getVarExport($plugins) . ');' . "\n";
} else {
return '';
}
}
/**
* method to compile a Smarty template
*
* @param mixed $_content template source
* @param bool $isTemplateSource
*
* @return bool true if compiling succeeded, false if it failed
*/
abstract protected function doCompile($_content, $isTemplateSource = false);
/**
* Compile Tag
*
* @param string $tag tag name
* @param array $args array with tag attributes
* @param array $parameter array with compilation parameter
*
* @throws SmartyCompilerException
* @throws SmartyException
* @return string compiled code
*/
private function compileTag2($tag, $args, $parameter)
{
$plugin_type = '';
// $args contains the attributes parsed and compiled by the lexer/parser
// assume that tag does compile into code, but creates no HTML output
$this->has_code = true;
// log tag/attributes
if (isset($this->smarty->_cache[ 'get_used_tags' ])) {
$this->template->_cache[ 'used_tags' ][] = array(
$tag,
$args
);
}
// check nocache option flag
foreach ($args as $arg) {
if (!is_array($arg)) {
if ($arg === "'nocache'" || $arg === 'nocache') {
$this->tag_nocache = true;
}
} else {
foreach ($arg as $k => $v) {
if (($k === "'nocache'" || $k === 'nocache') && (trim($v, "'\" ") === 'true')) {
$this->tag_nocache = true;
}
}
}
}
// compile the smarty tag (required compile classes to compile the tag are auto loaded)
if (($_output = $this->callTagCompiler($tag, $args, $parameter)) === false) {
if (isset($this->parent_compiler->tpl_function[ $tag ])
|| (isset($this->template->smarty->ext->_tplFunction)
&& $this->template->smarty->ext->_tplFunction->getTplFunction($this->template, $tag) !== false)
) {
// template defined by {template} tag
$args[ '_attr' ][ 'name' ] = "'{$tag}'";
$_output = $this->callTagCompiler('call', $args, $parameter);
}
}
if ($_output !== false) {
if ($_output !== true) {
// did we get compiled code
if ($this->has_code) {
// return compiled code
return $_output;
}
}
// tag did not produce compiled code
return null;
} else {
// map_named attributes
if (isset($args[ '_attr' ])) {
foreach ($args[ '_attr' ] as $key => $attribute) {
if (is_array($attribute)) {
$args = array_merge($args, $attribute);
}
}
}
// not an internal compiler tag
if (strlen($tag) < 6 || substr($tag, -5) !== 'close') {
// check if tag is a registered object
if (isset($this->smarty->registered_objects[ $tag ]) && isset($parameter[ 'object_method' ])) {
$method = $parameter[ 'object_method' ];
if (!in_array($method, $this->smarty->registered_objects[ $tag ][ 3 ])
&& (empty($this->smarty->registered_objects[ $tag ][ 1 ])
|| in_array($method, $this->smarty->registered_objects[ $tag ][ 1 ]))
) {
return $this->callTagCompiler('private_object_function', $args, $parameter, $tag, $method);
} elseif (in_array($method, $this->smarty->registered_objects[ $tag ][ 3 ])) {
return $this->callTagCompiler(
'private_object_block_function',
$args,
$parameter,
$tag,
$method
);
} else {
// throw exception
$this->trigger_template_error(
'not allowed method "' . $method . '" in registered object "' .
$tag . '"',
null,
true
);
}
}
// check if tag is registered
foreach (array(
Smarty::PLUGIN_COMPILER,
Smarty::PLUGIN_FUNCTION,
Smarty::PLUGIN_BLOCK,
) as $plugin_type) {
if (isset($this->smarty->registered_plugins[ $plugin_type ][ $tag ])) {
// if compiler function plugin call it now
if ($plugin_type === Smarty::PLUGIN_COMPILER) {
$new_args = array();
foreach ($args as $key => $mixed) {
if (is_array($mixed)) {
$new_args = array_merge($new_args, $mixed);
} else {
$new_args[ $key ] = $mixed;
}
}
if (!$this->smarty->registered_plugins[ $plugin_type ][ $tag ][ 1 ]) {
$this->tag_nocache = true;
}
return call_user_func_array(
$this->smarty->registered_plugins[ $plugin_type ][ $tag ][ 0 ],
array(
$new_args,
$this
)
);
}
// compile registered function or block function
if ($plugin_type === Smarty::PLUGIN_FUNCTION || $plugin_type === Smarty::PLUGIN_BLOCK) {
return $this->callTagCompiler(
'private_registered_' . $plugin_type,
$args,
$parameter,
$tag
);
}
}
}
// check plugins from plugins folder
foreach ($this->plugin_search_order as $plugin_type) {
if ($plugin_type === Smarty::PLUGIN_COMPILER
&& $this->smarty->loadPlugin('smarty_compiler_' . $tag)
&& (!isset($this->smarty->security_policy)
|| $this->smarty->security_policy->isTrustedTag($tag, $this))
) {
$plugin = 'smarty_compiler_' . $tag;
if (is_callable($plugin)) {
// convert arguments format for old compiler plugins
$new_args = array();
foreach ($args as $key => $mixed) {
if (is_array($mixed)) {
$new_args = array_merge($new_args, $mixed);
} else {
$new_args[ $key ] = $mixed;
}
}
return $plugin($new_args, $this->smarty);
}
if (class_exists($plugin, false)) {
$plugin_object = new $plugin;
if (method_exists($plugin_object, 'compile')) {
return $plugin_object->compile($args, $this);
}
}
throw new SmartyException("Plugin '{$tag}' not callable");
} else {
if ($function = $this->getPlugin($tag, $plugin_type)) {
if (!isset($this->smarty->security_policy)
|| $this->smarty->security_policy->isTrustedTag($tag, $this)
) {
return $this->callTagCompiler(
'private_' . $plugin_type . '_plugin',
$args,
$parameter,
$tag,
$function
);
}
}
}
}
if (is_callable($this->smarty->default_plugin_handler_func)) {
$found = false;
// look for already resolved tags
foreach ($this->plugin_search_order as $plugin_type) {
if (isset($this->default_handler_plugins[ $plugin_type ][ $tag ])) {
$found = true;
break;
}
}
if (!$found) {
// call default handler
foreach ($this->plugin_search_order as $plugin_type) {
if ($this->getPluginFromDefaultHandler($tag, $plugin_type)) {
$found = true;
break;
}
}
}
if ($found) {
// if compiler function plugin call it now
if ($plugin_type === Smarty::PLUGIN_COMPILER) {
$new_args = array();
foreach ($args as $key => $mixed) {
if (is_array($mixed)) {
$new_args = array_merge($new_args, $mixed);
} else {
$new_args[ $key ] = $mixed;
}
}
return call_user_func_array(
$this->default_handler_plugins[ $plugin_type ][ $tag ][ 0 ],
array(
$new_args,
$this
)
);
} else {
return $this->callTagCompiler(
'private_registered_' . $plugin_type,
$args,
$parameter,
$tag
);
}
}
}
} else {
// compile closing tag of block function
$base_tag = substr($tag, 0, -5);
// check if closing tag is a registered object
if (isset($this->smarty->registered_objects[ $base_tag ]) && isset($parameter[ 'object_method' ])) {
$method = $parameter[ 'object_method' ];
if (in_array($method, $this->smarty->registered_objects[ $base_tag ][ 3 ])) {
return $this->callTagCompiler(
'private_object_block_function',
$args,
$parameter,
$tag,
$method
);
} else {
// throw exception
$this->trigger_template_error(
'not allowed closing tag method "' . $method .
'" in registered object "' . $base_tag . '"',
null,
true
);
}
}
// registered block tag ?
if (isset($this->smarty->registered_plugins[ Smarty::PLUGIN_BLOCK ][ $base_tag ])
|| isset($this->default_handler_plugins[ Smarty::PLUGIN_BLOCK ][ $base_tag ])
) {
return $this->callTagCompiler('private_registered_block', $args, $parameter, $tag);
}
// registered function tag ?
if (isset($this->smarty->registered_plugins[ Smarty::PLUGIN_FUNCTION ][ $tag ])) {
return $this->callTagCompiler('private_registered_function', $args, $parameter, $tag);
}
// block plugin?
if ($function = $this->getPlugin($base_tag, Smarty::PLUGIN_BLOCK)) {
return $this->callTagCompiler('private_block_plugin', $args, $parameter, $tag, $function);
}
// function plugin?
if ($function = $this->getPlugin($tag, Smarty::PLUGIN_FUNCTION)) {
if (!isset($this->smarty->security_policy)
|| $this->smarty->security_policy->isTrustedTag($tag, $this)
) {
return $this->callTagCompiler('private_function_plugin', $args, $parameter, $tag, $function);
}
}
// registered compiler plugin ?
if (isset($this->smarty->registered_plugins[ Smarty::PLUGIN_COMPILER ][ $tag ])) {
// if compiler function plugin call it now
$args = array();
if (!$this->smarty->registered_plugins[ Smarty::PLUGIN_COMPILER ][ $tag ][ 1 ]) {
$this->tag_nocache = true;
}
return call_user_func_array(
$this->smarty->registered_plugins[ Smarty::PLUGIN_COMPILER ][ $tag ][ 0 ],
array(
$args,
$this
)
);
}
if ($this->smarty->loadPlugin('smarty_compiler_' . $tag)) {
$plugin = 'smarty_compiler_' . $tag;
if (is_callable($plugin)) {
return $plugin($args, $this->smarty);
}
if (class_exists($plugin, false)) {
$plugin_object = new $plugin;
if (method_exists($plugin_object, 'compile')) {
return $plugin_object->compile($args, $this);
}
}
throw new SmartyException("Plugin '{$tag}' not callable");
}
}
$this->trigger_template_error("unknown tag '{$tag}'", null, true);
}
}
}