update smarty library - seems to bring some performance improvement

1 files changed, 403 insertions, 0 deletions

diff --git a/library/Smarty/libs/sysplugins/smarty_template_cached.php b/library/Smarty/libs/sysplugins/smarty_template_cached.php
new file mode 100644
index 000000000..5b9043958
--- /dev/null
+++ b/library/Smarty/libs/sysplugins/smarty_template_cached.php
@@ -0,0 +1,403 @@
+<?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;
+        }
+    }
+}