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<?php
class view {
protected $dir; //templates directory
protected $lang; //language
protected $authorized;
protected $user;
protected function getCache($template) {
//return false; //uncomment for developing
if (!isset($_SESSION['cache_' . $template])) return false;
return $_SESSION['cache_' . $template];
}
protected function addCache($template, $content) {
$_SESSION['cache_' . $template] = $content;
}
public function __construct($dir, localization $lang, user $user) {
$this->dir = $dir;
$this->authorized = (bool) $user->authorized;
$this->user = $user;
$this->lang = $lang;
}
public function invoke($template, $params = [], $return = false, $quests = []) { //can be called w/o params
$filename = ROOT . '/' . $this->dir . '/tpl/' . $template . '.tpl';
$lang = $this->lang->getData();
$content = $this->getCache($template);
if (!$content) {
$f = fopen($filename, 'a+');
$content = fread($f, (filesize($filename) > 0 ? filesize($filename) : 1));
$this->addCache($template, $content);
}
foreach ($params as $key => $value) {
$content = str_ireplace('{{' . $key . '}}', $value, $content);
}
preg_match_all("@{{:([a-z0-9_]+?)}}@sui", $content, $localization);
$localization = $localization[1];
foreach ($localization as $value) {
$content = str_ireplace('{{:' . $value . '}}', $lang[$value], $content);
} //applying lang
foreach ($quests as $key => $value) {
preg_match_all("@{\?$key=$value\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $matches);
while (!empty($matches[0])) {
$content = str_replace($matches[0][0], $matches[1][0], $content);
preg_match_all("@{\?$key=$value\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $matches);
}
preg_match_all("@{\?$key=((?!$value).+?)\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $matches);
while (!empty($matches[0])) {
$content = str_replace($matches[0][0], "", $content);
preg_match_all("@{\?$key=((?!$value).+?)\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $matches);
}
}
preg_match_all("@{\?access=([a-z0-9]+?)\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $perms);
while (!empty($perms[0])) {
foreach ($perms[1] as $value) {
if ($this->user->canAccess($value))
$content = preg_replace("@{\?access=$value\?}(((?!{\?.+\?}).)*?){\?\?}@sui", "$1", $content);
else $content = preg_replace("@{\?access=$value\?}(((?!{\?.+\?}).)*?){\?\?}@sui", "", $content);
}
preg_match_all("@{\?access=([a-z0-9]+?)\?}(((?!{\?.+\?}).)*?){\?\?}@sui", $content, $perms);
}
$content = preg_replace("@{\?authorized=((?!" . (int) $this->authorized . ").+?)\?}(.+?){\?\?}@sui", "", $content);
$content = preg_replace("@{\?authorized=" . (int) $this->authorized . "\?}(.+?){\?\?}@sui", "$1", $content);
$content = preg_replace("@{\?(.+?)\?}(.+?){\?\?}@sui", "", $content);
$content = str_ireplace('{{DIR}}', '/' . $this->dir, $content); //replacing DIR param
$content = str_ireplace('{{URI}}', urlencode(other::filter($_SERVER['REQUEST_URI'])), $content); //replacing URI param
$content = str_ireplace('{{HTTP_HOST}}', $_SERVER['HTTP_HOST'], $content); //replacing HTTP_HOST param
$content = preg_replace("@{\?((.+?)|(.+?){0})\?}@sui", "", $content);
if (!$return) echo $content;
return $content;
}
}
?>
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