new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smarty_template_cached.php
@@ -0,0 +1,392 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Uwe Tews
+ * Date: 04.12.2014
+ * Time: 06:08
+ */
+
+/**
+ * Smarty Resource Data Object
+ * Cache Data Container for Template Files
+ *
+ * @package Smarty
+ * @subpackage TemplateResources
+ * @author Rodney Rehm
+ */
+class Smarty_Template_Cached {
+ /**
+ * Source Filepath
+ *
+ * @var string
+ */
+ public $filepath = false;
+
+ /**
+ * Source Content
+ *
+ * @var string
+ */
+ public $content = null;
+
+ /**
+ * Source Timestamp
+ *
+ * @var integer
+ */
+ public $timestamp = false;
+
+ /**
+ * Source Existence
+ *
+ * @var boolean
+ */
+ public $exists = false;
+
+ /**
+ * Cache Is Valid
+ *
+ * @var boolean
+ */
+ public $valid = null;
+
+ /**
+ * Cache was processed
+ *
+ * @var boolean
+ */
+ public $processed = false;
+
+ /**
+ * CacheResource Handler
+ *
+ * @var Smarty_CacheResource
+ */
+ public $handler = null;
+
+ /**
+ * Template Compile Id (Smarty_Internal_Template::$compile_id)
+ *
+ * @var string
+ */
+ public $compile_id = null;
+
+ /**
+ * Template Cache Id (Smarty_Internal_Template::$cache_id)
+ *
+ * @var string
+ */
+ public $cache_id = null;
+
+ /**
+ * Id for cache locking
+ *
+ * @var string
+ */
+ public $lock_id = null;
+
+ /**
+ * flag that cache is locked by this instance
+ *
+ * @var bool
+ */
+ public $is_locked = false;
+
+ /**
+ * Source Object
+ *
+ * @var Smarty_Template_Source
+ */
+ public $source = null;
+
+ /**
+ * create Cached Object container
+ *
+ * @param Smarty_Internal_Template $_template template object
+ */
+ public function __construct(Smarty_Internal_Template $_template) {
+ $this->compile_id = $_template->compile_id;
+ $this->cache_id = $_template->cache_id;
+ if (!isset($_template->source)) {
+ $_template->loadSource();
+ }
+ $this->source = $_template->source;
+ if (!class_exists('Smarty_CacheResource', false)) {
+ require SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
+ }
+ $this->handler = Smarty_CacheResource::load($_template->smarty);
+ }
+
+ /**
+ * @param Smarty_Internal_Template $_template
+ *
+ * @return Smarty_Template_Cached
+ */
+ static function load(Smarty_Internal_Template $_template) {
+ $_template->cached = $cached = new Smarty_Template_Cached($_template);
+ $cached->handler->populate($cached, $_template);
+ // caching enabled ?
+ if (!($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED) || $_template->source->recompiled) {
+ $cached->valid = false;
+ }
+ return $cached;
+ }
+
+ /**
+ * Check if cache is valid, lock cache if required
+ *
+ * @param \Smarty_Internal_Template $_template
+ *
+ * @return bool flag true if cache is valid
+ */
+ public function isCached(Smarty_Internal_Template $_template) {
+ if ($this->valid !== null) {
+ return $this->valid;
+ }
+ while (true) {
+ while (true) {
+ if ($this->exists === false || $_template->smarty->force_compile || $_template->smarty->force_cache) {
+ $this->valid = false;
+ } else {
+ $this->valid = true;
+ }
+ if ($this->valid && $_template->caching == Smarty::CACHING_LIFETIME_CURRENT && $_template->cache_lifetime >= 0 && time() > ($this->timestamp + $_template->cache_lifetime)) {
+ // lifetime expired
+ $this->valid = false;
+ }
+ if ($this->valid && $_template->source->timestamp > $this->timestamp) {
+ $this->valid = false;
+ }
+ if ($this->valid || !$_template->smarty->cache_locking) {
+ break;
+ }
+ if (!$this->handler->locked($_template->smarty, $this)) {
+ $this->handler->acquireLock($_template->smarty, $this);
+ break 2;
+ }
+ $this->handler->populate($this, $_template);
+ }
+ if ($this->valid) {
+ if (!$_template->smarty->cache_locking || $this->handler->locked($_template->smarty, $this) === null) {
+ // load cache file for the following checks
+ if ($_template->smarty->debugging) {
+ Smarty_Internal_Debug::start_cache($_template);
+ }
+ if ($this->handler->process($_template, $this) === false) {
+ $this->valid = false;
+ } else {
+ $this->processed = true;
+ }
+ if ($_template->smarty->debugging) {
+ Smarty_Internal_Debug::end_cache($_template);
+ }
+ } else {
+ $this->is_locked = true;
+ continue;
+ }
+ } else {
+ return $this->valid;
+ }
+ if ($this->valid && $_template->caching === Smarty::CACHING_LIFETIME_SAVED && $_template->properties['cache_lifetime'] >= 0 && (time() > ($_template->cached->timestamp + $_template->properties['cache_lifetime']))) {
+ $this->valid = false;
+ }
+ if ($_template->smarty->cache_locking) {
+ if (!$this->valid) {
+ $this->handler->acquireLock($_template->smarty, $this);
+ } elseif ($this->is_locked) {
+ $this->handler->releaseLock($_template->smarty, $this);
+ }
+ }
+ return $this->valid;
+ }
+ return $this->valid;
+ }
+
+ /**
+ * Process cached template
+ *
+ * @param Smarty_Internal_Template $_template template object
+ */
+ public function process(Smarty_Internal_Template $_template) {
+ if ($this->handler->process($_template, $this) === false) {
+ $this->valid = false;
+ }
+ if ($this->valid) {
+ $this->processed = true;
+ } else {
+ $this->processed = false;
+ }
+ }
+
+ /**
+ * Render cached template
+ *
+ * @param Smarty_Internal_Template $_template
+ *
+ * @return string
+ * @throws Exception
+ */
+ public function render(Smarty_Internal_Template $_template) {
+ if (!$this->processed) {
+ $this->process($_template);
+ }
+ return $_template->getRenderedTemplateCode();
+ }
+
+ /**
+ * Write this cache object to handler
+ *
+ * @param Smarty_Internal_Template $_template template object
+ * @param string $content content to cache
+ *
+ * @return boolean success
+ */
+ public function write(Smarty_Internal_Template $_template, $content) {
+ if (!$_template->source->recompiled) {
+ if ($this->handler->writeCachedContent($_template, $content)) {
+ $this->content = null;
+ $this->timestamp = time();
+ $this->exists = true;
+ $this->valid = true;
+ $this->processed = false;
+ if ($_template->smarty->cache_locking) {
+ $this->handler->releaseLock($_template->smarty, $this);
+ }
+
+ return true;
+ }
+ $this->content = null;
+ $this->timestamp = false;
+ $this->exists = false;
+ $this->valid = false;
+ $this->processed = false;
+ }
+
+ return false;
+ }
+
+ /**
+ * Read cache content from handler
+ *
+ * @param Smarty_Internal_Template $_template template object
+ *
+ * @return string content
+ */
+ public function read(Smarty_Internal_Template $_template) {
+ if (!$_template->source->recompiled) {
+ return $this->handler->readCachedContent($_template);
+ }
+ return false;
+ }
+
+ /**
+ * Sanitize content and write it to cache resource
+ *
+ * @param Smarty_Internal_Template $_template
+ * @param string $content
+ * @param bool $no_output_filter
+ *
+ * @throws SmartyException
+ */
+ public function updateCache(Smarty_Internal_Template $_template, $content, $no_output_filter) {
+ $_template->properties['has_nocache_code'] = false;
+ // get text between non-cached items
+ $cache_split = preg_split("!/\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*\/(.+?)/\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*/!s", $content);
+ // get non-cached items
+ preg_match_all("!/\*%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*\/(.+?)/\*/%%SmartyNocache:{$_template->properties['nocache_hash']}%%\*/!s", $content, $cache_parts);
+ $output = '';
+ // loop over items, stitch back together
+ foreach ($cache_split as $curr_idx => $curr_split) {
+ // escape PHP tags in template content
+ $output .= preg_replace('/(<%|%>|<\?php|<\?|\?>|<script\s+language\s*=\s*[\"\']?\s*php\s*[\"\']?\s*>)/', "<?php echo '\$1'; ?>\n", $curr_split);
+ if (isset($cache_parts[0][$curr_idx])) {
+ $_template->properties['has_nocache_code'] = true;
+ $output .= $cache_parts[1][$curr_idx];
+ }
+ }
+ if (!$no_output_filter && !$_template->has_nocache_code && (isset($_template->smarty->autoload_filters['output']) || isset($_template->smarty->registered_filters['output']))) {
+ $output = Smarty_Internal_Filter_Handler::runFilter('output', $output, $_template);
+ }
+ // write cache file content
+ $this->writeCachedContent($_template, $output);
+ }
+
+ /**
+ * Writes the content to cache resource
+ *
+ * @param Smarty_Internal_Template $_template
+ * @param string $content
+ *
+ * @return bool
+ */
+ public function writeCachedContent(Smarty_Internal_Template $_template, $content) {
+ if ($_template->source->recompiled || !($_template->caching == Smarty::CACHING_LIFETIME_CURRENT || $_template->caching == Smarty::CACHING_LIFETIME_SAVED)) {
+ // don't write cache file
+ return false;
+ }
+ $_template->properties['cache_lifetime'] = $_template->cache_lifetime;
+ $_template->properties['unifunc'] = 'content_' . str_replace(array('.', ','), '_', uniqid('', true));
+ $content = Smarty_Internal_Extension_CodeFrame::create($_template, $content, true);
+ if (!empty($_template->properties['tpl_function'])) {
+ foreach ($_template->properties['tpl_function'] as $funcParam) {
+ if (is_file($funcParam['compiled_filepath'])) {
+ // read compiled file
+ $code = file_get_contents($funcParam['compiled_filepath']);
+ // grab template function
+ if (preg_match("/\/\* {$funcParam['call_name']} \*\/([\S\s]*?)\/\*\/ {$funcParam['call_name']} \*\//", $code, $match)) {
+ unset($code);
+ $content .= "<?php " . $match[0] . "?>\n";
+ }
+ }
+ }
+ }
+ return $this->write($_template, $content);
+ }
+
+ /**
+ * check client side cache
+ *
+ * @param Smarty_Internal_Template $_template
+ * @param string $content
+ */
+ public function cacheModifiedCheck(Smarty_Internal_Template $_template, $content) {
+ $_isCached = $_template->isCached() && !$_template->has_nocache_code;
+ $_last_modified_date = @substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], 'GMT') + 3);
+ if ($_isCached && $this->timestamp <= strtotime($_last_modified_date)) {
+ switch (PHP_SAPI) {
+ case 'cgi': // php-cgi < 5.3
+ case 'cgi-fcgi': // php-cgi >= 5.3
+ case 'fpm-fcgi': // php-fpm >= 5.3.3
+ header('Status: 304 Not Modified');
+ break;
+
+ case 'cli':
+ if ( /* ^phpunit */
+ !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
+ ) {
+ $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = '304 Not Modified';
+ }
+ break;
+
+ default:
+ header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
+ break;
+ }
+ } else {
+ switch (PHP_SAPI) {
+ case 'cli':
+ if ( /* ^phpunit */
+ !empty($_SERVER['SMARTY_PHPUNIT_DISABLE_HEADERS']) /* phpunit$ */
+ ) {
+ $_SERVER['SMARTY_PHPUNIT_HEADERS'][] = 'Last-Modified: ' . gmdate('D, d M Y H:i:s', $this->timestamp) . ' GMT';
+ }
+ break;
+
+ default:
+ header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $this->timestamp) . ' GMT');
+ break;
+ }
+ echo $content;
+ }
+ }
+}