/**
* 读取文件并输出到浏览器
*
* @param type $full 文件路径
* @param type $fsencoding 文件系统的编码，如不为空则会自动进行一些编码转换
*/
public static function readfile($full, $fsencoding = '')
{
$full = self::conv_to($full, $fsencoding);
if (file_exists($full)) {
$mtime = filemtime($full);
Server::show_304($mtime);
$fi = new \finfo(FILEINFO_MIME_TYPE);
$mime_type = $fi->file($full);
header('Content-Type: ' . $mime_type);
readfile($full);
} else {
Server::show_404();
}
}
/**
* 分发请求到对应的回调函数
*
* @param string $path 请求的路径
*/
public function dispatch($path)
{
foreach ($this->_calls as $v) {
$matches = [];
if (preg_match($v['reg'], $path, $matches) === 1) {
array_shift($matches);
call_user_func_array($v['callback'], $matches);
return;
}
}
Minifw\Server::show_404();
}
/**
* 将一个路径路由到指定方法
*
* @param string $path 路径
* @param string $prefix 指定方法所在类的名空间前缀
* @param string $def_func 当路径中方法名为空时掉用的默认函数
*/
public static function route($path, $prefix = '', $die = true)
{
list($classname, $funcname, $args, $nouse) = self::path_info($path);
$classname = str_replace('/', '\\', $classname);
$classname = $prefix . ucwords($classname, '\\');
try {
$class = new \ReflectionClass($classname);
if ($funcname == '' && $class->hasConstant('DEF_FUNC')) {
$funcname = $class->getConstant('DEF_FUNC');
}
$funcname = str_replace('.', '', $funcname);
if ($funcname == '') {
if ($die) {
Server::show_404();
}
return false;
}
$funcname = 'c_' . $funcname;
$func = $class->getMethod($funcname);
$doc = $func->getDocComment();
$doc = str_replace(' ', '', $doc);
if (!preg_match('/^\\*@route(\\(prev=(true|false)\\))?$/im', $doc, $matches)) {
if ($die) {
Server::show_404();
}
return false;
}
$obj = $class->newInstance();
if (!isset($matches[2]) || $matches[2] === 'true') {
if ($class->hasMethod('prev')) {
$prev = $class->getMethod('prev');
$prev->setAccessible(true);
$prev->invoke($obj);
}
}
$func->setAccessible(true);
$func->invoke($obj, $args);
if ($die) {
die;
}
return true;
} catch (Minifw\Exception $ex) {
if (DEBUG === 1) {
echo $ex->getMessage();
}
if ($die) {
Server::show_404();
}
return false;
} catch (\Exception $ex) {
if ($die) {
Server::show_404();
}
return false;
}
}
public static function show_304($mtime)
{
$expire = gmdate('D, d M Y H:i:s', time() + self::$cache_time) . ' GMT';
header('Expires: ' . $expire);
header('Pragma: cache');
header('Cache-Control: max-age=' . self::$cache_time);
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $mtime) . ' GMT');
header('Etag: ' . $mtime);
if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && trim($_SERVER['HTTP_IF_NONE_MATCH']) == $mtime) {
header('HTTP/1.1 304 Not Modified');
die(0);
}
}
/**
* 生成到前一个页面的链接
*
* @param string $default 如果referer不存在则返回该值
* @return string 生成的链接
*/
public static function referer($default = '')
{
if (isset($_SERVER['HTTP_REFERER'])) {
$url = $_SERVER['HTTP_REFERER'];
} else {
$url = $default;
}
return $url;
}
}
Server::$cache_time = Config::get('main', 'cache', 3600);
