library/smarty/libs/sysplugins/smarty_internal_cacheresource_file.php
author Markus Broeker<broeker.markus@googlemail.com>
Sun, 14 Feb 2016 14:26:01 +0100
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<?php
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/**
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 * Smarty Internal Plugin CacheResource File
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 *
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 * @package    Smarty
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 * @subpackage Cacher
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 * @author     Uwe Tews
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 * @author     Rodney Rehm
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 */
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/**
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 * This class does contain all necessary methods for the HTML cache on file system
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 * Implements the file system as resource for the HTML cache Version ussing nocache inserts.
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 *
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 * @package    Smarty
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 * @subpackage Cacher
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 */
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class Smarty_Internal_CacheResource_File extends Smarty_CacheResource {
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    /**
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     * populate Cached Object with meta data from Resource
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     *
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     * @param Smarty_Template_Cached $cached cached object
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     * @param Smarty_Internal_Template $_template template object
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     *
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     * @return void
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     */
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    public function populate(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template) {
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        $_source_file_path = str_replace(':', '.', $_template->source->filepath);
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        $_cache_id = isset($_template->cache_id) ? preg_replace('![^\w\|]+!', '_', $_template->cache_id) : null;
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        $_compile_id = isset($_template->compile_id) ? preg_replace('![^\w\|]+!', '_', $_template->compile_id) : null;
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        $_filepath = $_template->source->uid;
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        // if use_sub_dirs, break file into directories
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        if ($_template->smarty->use_sub_dirs) {
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            $_filepath = substr($_filepath, 0, 2) . DS
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                . substr($_filepath, 2, 2) . DS
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                . substr($_filepath, 4, 2) . DS
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                . $_filepath;
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        }
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        $_compile_dir_sep = $_template->smarty->use_sub_dirs ? DS : '^';
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        if (isset($_cache_id)) {
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            $_cache_id = str_replace('|', $_compile_dir_sep, $_cache_id) . $_compile_dir_sep;
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        } else {
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            $_cache_id = '';
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        }
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        if (isset($_compile_id)) {
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            $_compile_id = $_compile_id . $_compile_dir_sep;
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        } else {
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            $_compile_id = '';
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        }
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        $_cache_dir = $_template->smarty->getCacheDir();
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        if ($_template->smarty->cache_locking) {
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            // create locking file name
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            // relative file name?
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            if (!preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_cache_dir)) {
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                $_lock_dir = rtrim(getcwd(), '/\\') . DS . $_cache_dir;
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            } else {
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                $_lock_dir = $_cache_dir;
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            }
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            $cached->lock_id = $_lock_dir . sha1($_cache_id . $_compile_id . $_template->source->uid) . '.lock';
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        }
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        $cached->filepath = $_cache_dir . $_cache_id . $_compile_id . $_filepath . '.' . basename($_source_file_path) . '.php';
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        $cached->timestamp = $cached->exists = is_file($cached->filepath);
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        if ($cached->exists) {
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            $cached->timestamp = filemtime($cached->filepath);
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        }
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    }
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    /**
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     * populate Cached Object with timestamp and exists from Resource
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     *
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     * @param Smarty_Template_Cached $cached cached object
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     *
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     * @return void
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     */
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    public function populateTimestamp(Smarty_Template_Cached $cached) {
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        $cached->timestamp = $cached->exists = is_file($cached->filepath);
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        if ($cached->exists) {
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            $cached->timestamp = filemtime($cached->filepath);
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        }
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    }
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    /**
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     * Read the cached template and process its header
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     *
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     * @param Smarty_Internal_Template $_template template object
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     * @param Smarty_Template_Cached $cached cached object
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     *
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     * @return booleantrue or false if the cached content does not exist
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     */
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    public function process(Smarty_Internal_Template $_template, Smarty_Template_Cached $cached = null) {
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        /** @var Smarty_Internal_Template $_smarty_tpl
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         * used in included file
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         */
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        $_smarty_tpl = $_template;
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        return @include $_template->cached->filepath;
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    }
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    /**
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     * Write the rendered template output to cache
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     *
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     * @param Smarty_Internal_Template $_template template object
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     * @param string $content content to cache
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     *
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     * @return boolean success
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     */
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    public function writeCachedContent(Smarty_Internal_Template $_template, $content) {
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        $obj = new Smarty_Internal_Write_File();
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        if ($obj->writeFile($_template->cached->filepath, $content, $_template->smarty) === true) {
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            $cached = $_template->cached;
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            $cached->timestamp = $cached->exists = is_file($cached->filepath);
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            if ($cached->exists) {
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                $cached->timestamp = filemtime($cached->filepath);
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                return true;
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            }
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        }
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        return false;
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    }
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    /**
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     * Read cached template from cache
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     *
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     * @param  Smarty_Internal_Template $_template template object
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     *
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     * @return string  content
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     */
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    public function readCachedContent(Smarty_Internal_Template $_template) {
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        if (is_file($_template->cached->filepath)) {
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            return file_get_contents($_template->cached->filepath);
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        }
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        return false;
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    }
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parents:
diff changeset
   134
    /**
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   135
     * Empty cache
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   136
     *
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   137
     * @param Smarty $smarty
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   138
     * @param integer $exp_time expiration time (number of seconds, not timestamp)
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   139
     *
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   140
     * @return integer number of cache files deleted
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   141
     */
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   142
    public function clearAll(Smarty $smarty, $exp_time = null) {
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   143
        return $this->clear($smarty, null, null, null, $exp_time);
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   144
    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   145
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   146
    /**
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   147
     * Empty cache for a specific template
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   148
     *
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   149
     * @param Smarty $smarty
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   150
     * @param string $resource_name template name
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   151
     * @param string $cache_id cache id
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   152
     * @param string $compile_id compile id
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   153
     * @param integer $exp_time expiration time (number of seconds, not timestamp)
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   154
     *
4869aea77e21 Bröker-Framework BFW-1
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parents:
diff changeset
   155
     * @return integer number of cache files deleted
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   156
     */
4869aea77e21 Bröker-Framework BFW-1
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parents:
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   157
    public function clear(Smarty $smarty, $resource_name, $cache_id, $compile_id, $exp_time) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   158
        $_cache_id = isset($cache_id) ? preg_replace('![^\w\|]+!', '_', $cache_id) : null;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   159
        $_compile_id = isset($compile_id) ? preg_replace('![^\w\|]+!', '_', $compile_id) : null;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   160
        $_dir_sep = $smarty->use_sub_dirs ? '/' : '^';
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   161
        $_compile_id_offset = $smarty->use_sub_dirs ? 3 : 0;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   162
        $_dir = realpath($smarty->getCacheDir()) . '/';
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   163
        if ($_dir == '/') { //We should never want to delete this!
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   164
            return 0;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   165
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   166
        $_dir_length = strlen($_dir);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   167
        if (isset($_cache_id)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   168
            $_cache_id_parts = explode('|', $_cache_id);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   169
            $_cache_id_parts_count = count($_cache_id_parts);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   170
            if ($smarty->use_sub_dirs) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   171
                foreach ($_cache_id_parts as $id_part) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   172
                    $_dir .= $id_part . DS;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   173
                }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   174
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   175
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   176
        if (isset($resource_name)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   177
            $_save_stat = $smarty->caching;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   178
            $smarty->caching = true;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   179
            $tpl = new $smarty->template_class($resource_name, $smarty);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   180
            $smarty->caching = $_save_stat;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   181
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   182
            // remove from template cache
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   183
            $tpl->source; // have the template registered before unset()
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   184
            if ($smarty->allow_ambiguous_resources) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   185
                $_templateId = $tpl->source->unique_resource . $tpl->cache_id . $tpl->compile_id;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   186
            } else {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   187
                $_templateId = $smarty->joined_template_dir . '#' . $resource_name . $tpl->cache_id . $tpl->compile_id;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   188
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   189
            if (isset($_templateId[150])) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   190
                $_templateId = sha1($_templateId);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   191
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   192
            unset($smarty->template_objects[$_templateId]);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   193
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   194
            if ($tpl->source->exists) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   195
                $_resourcename_parts = basename(str_replace('^', '/', $tpl->cached->filepath));
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   196
            } else {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   197
                return 0;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   198
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   199
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   200
        $_count = 0;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   201
        $_time = time();
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   202
        if (file_exists($_dir)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   203
            $_cacheDirs = new RecursiveDirectoryIterator($_dir);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   204
            $_cache = new RecursiveIteratorIterator($_cacheDirs, RecursiveIteratorIterator::CHILD_FIRST);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   205
            foreach ($_cache as $_file) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   206
                if (substr(basename($_file->getPathname()), 0, 1) == '.' || strpos($_file, '.svn') !== false) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   207
                    continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   208
                }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   209
                // directory ?
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   210
                if ($_file->isDir()) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   211
                    if (!$_cache->isDot()) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   212
                        // delete folder if empty
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   213
                        @rmdir($_file->getPathname());
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   214
                    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   215
                } else {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   216
                    $_parts = explode($_dir_sep, str_replace('\\', '/', substr((string)$_file, $_dir_length)));
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   217
                    $_parts_count = count($_parts);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   218
                    // check name
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   219
                    if (isset($resource_name)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   220
                        if ($_parts[$_parts_count - 1] != $_resourcename_parts) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   221
                            continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   222
                        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   223
                    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   224
                    // check compile id
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   225
                    if (isset($_compile_id) && (!isset($_parts[$_parts_count - 2 - $_compile_id_offset]) || $_parts[$_parts_count - 2 - $_compile_id_offset] != $_compile_id)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   226
                        continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   227
                    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   228
                    // check cache id
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   229
                    if (isset($_cache_id)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   230
                        // count of cache id parts
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   231
                        $_parts_count = (isset($_compile_id)) ? $_parts_count - 2 - $_compile_id_offset : $_parts_count - 1 - $_compile_id_offset;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   232
                        if ($_parts_count < $_cache_id_parts_count) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   233
                            continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   234
                        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   235
                        for ($i = 0; $i < $_cache_id_parts_count; $i++) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   236
                            if ($_parts[$i] != $_cache_id_parts[$i]) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   237
                                continue 2;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   238
                            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   239
                        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   240
                    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   241
                    // expired ?
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   242
                    if (isset($exp_time)) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   243
                        if ($exp_time < 0) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   244
                            preg_match('#\'cache_lifetime\' =>\s*(\d*)#', file_get_contents($_file), $match);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   245
                            if ($_time < (@filemtime($_file) + $match[1])) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   246
                                continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   247
                            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   248
                        } else {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   249
                            if ($_time - @filemtime($_file) < $exp_time) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   250
                                continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   251
                            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   252
                        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   253
                    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   254
                    $_count += @unlink((string)$_file) ? 1 : 0;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   255
                }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   256
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   257
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   258
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   259
        return $_count;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   260
    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   261
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   262
    /**
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   263
     * Check is cache is locked for this template
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   264
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   265
     * @param Smarty $smarty Smarty object
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   266
     * @param Smarty_Template_Cached $cached cached object
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     *
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     * @return boolean true or false if cache is locked
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     */
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    public function hasLock(Smarty $smarty, Smarty_Template_Cached $cached) {
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        if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
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            clearstatcache(true, $cached->lock_id);
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        } else {
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            clearstatcache();
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        }
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        if (is_file($cached->lock_id)) {
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            $t = @filemtime($cached->lock_id);
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            return $t && (time() - $t < $smarty->locking_timeout);
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        } else {
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            return false;
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        }
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    }
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    /**
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     * Lock cache for this template
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     *
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     * @param Smarty $smarty Smarty object
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     * @param Smarty_Template_Cached $cached cached object
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     *
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     * @return bool|void
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     */
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    public function acquireLock(Smarty $smarty, Smarty_Template_Cached $cached) {
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        $cached->is_locked = true;
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        touch($cached->lock_id);
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    }
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    /**
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     * Unlock cache for this template
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     *
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     * @param Smarty $smarty Smarty object
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     * @param Smarty_Template_Cached $cached cached object
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     *
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     * @return bool|void
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     */
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    public function releaseLock(Smarty $smarty, Smarty_Template_Cached $cached) {
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        $cached->is_locked = false;
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        @unlink($cached->lock_id);
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    }
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}