302 lines
9.9 KiB
PHP
302 lines
9.9 KiB
PHP
<?php
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/**
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* This file is part of workerman.
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the MIT-LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @author walkor<walkor@workerman.net>
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* @copyright walkor<walkor@workerman.net>
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* @link http://www.workerman.net/
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Workerman;
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use Workerman\Protocols\Http;
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use Workerman\Protocols\HttpCache;
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/**
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* WebServer.
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*/
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class WebServer extends Worker
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{
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/**
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* Virtual host to path mapping.
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*
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* @var array ['workerman.net'=>'/home', 'www.workerman.net'=>'home/www']
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*/
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protected $serverRoot = array();
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/**
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* Mime mapping.
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*
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* @var array
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*/
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protected static $mimeTypeMap = array();
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/**
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* Used to save user OnWorkerStart callback settings.
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*
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* @var callback
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*/
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protected $_onWorkerStart = null;
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/**
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* Add virtual host.
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*
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* @param string $domain
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* @param string $root_path
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* @return void
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*/
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public function addRoot($domain, $root_path)
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{
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$this->serverRoot[$domain] = $root_path;
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}
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/**
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* Construct.
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*
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* @param string $socket_name
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* @param array $context_option
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*/
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public function __construct($socket_name, $context_option = array())
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{
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list(, $address) = explode(':', $socket_name, 2);
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parent::__construct('http:' . $address, $context_option);
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$this->name = 'WebServer';
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}
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/**
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* Run webserver instance.
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*
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* @see Workerman.Worker::run()
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*/
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public function run()
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{
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$this->_onWorkerStart = $this->onWorkerStart;
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$this->onWorkerStart = array($this, 'onWorkerStart');
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$this->onMessage = array($this, 'onMessage');
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parent::run();
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}
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/**
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* Emit when process start.
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*
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* @throws \Exception
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*/
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public function onWorkerStart()
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{
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if (empty($this->serverRoot)) {
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throw new \Exception('server root not set, please use WebServer::addRoot($domain, $root_path) to set server root path');
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}
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// Init HttpCache.
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HttpCache::init();
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// Init mimeMap.
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$this->initMimeTypeMap();
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// Try to emit onWorkerStart callback.
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if ($this->_onWorkerStart) {
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try {
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call_user_func($this->_onWorkerStart, $this);
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} catch (\Exception $e) {
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self::log($e);
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exit(250);
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} catch (\Error $e) {
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self::log($e);
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exit(250);
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}
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}
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}
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/**
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* Init mime map.
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*
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* @return void
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*/
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public function initMimeTypeMap()
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{
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$mime_file = Http::getMimeTypesFile();
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if (!is_file($mime_file)) {
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$this->log("$mime_file mime.type file not fond");
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return;
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}
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$items = file($mime_file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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if (!is_array($items)) {
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$this->log("get $mime_file mime.type content fail");
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return;
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}
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foreach ($items as $content) {
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if (preg_match("/\s*(\S+)\s+(\S.+)/", $content, $match)) {
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$mime_type = $match[1];
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$workerman_file_extension_var = $match[2];
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$workerman_file_extension_array = explode(' ', substr($workerman_file_extension_var, 0, -1));
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foreach ($workerman_file_extension_array as $workerman_file_extension) {
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self::$mimeTypeMap[$workerman_file_extension] = $mime_type;
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}
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}
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}
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}
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/**
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* Emit when http message coming.
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*
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* @param Connection\TcpConnection $connection
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* @return void
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*/
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public function onMessage($connection)
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{
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// REQUEST_URI.
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$workerman_url_info = parse_url($_SERVER['REQUEST_URI']);
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if (!$workerman_url_info) {
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Http::header('HTTP/1.1 400 Bad Request');
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$connection->close('<h1>400 Bad Request</h1>');
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return;
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}
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$workerman_path = isset($workerman_url_info['path']) ? $workerman_url_info['path'] : '/';
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$workerman_path_info = pathinfo($workerman_path);
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$workerman_file_extension = isset($workerman_path_info['extension']) ? $workerman_path_info['extension'] : '';
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if ($workerman_file_extension === '') {
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$workerman_path = ($len = strlen($workerman_path)) && $workerman_path[$len - 1] === '/' ? $workerman_path . 'index.php' : $workerman_path . '/index.php';
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$workerman_file_extension = 'php';
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}
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$workerman_root_dir = isset($this->serverRoot[$_SERVER['SERVER_NAME']]) ? $this->serverRoot[$_SERVER['SERVER_NAME']] : current($this->serverRoot);
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$workerman_file = "$workerman_root_dir/$workerman_path";
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if ($workerman_file_extension === 'php' && !is_file($workerman_file)) {
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$workerman_file = "$workerman_root_dir/index.php";
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if (!is_file($workerman_file)) {
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$workerman_file = "$workerman_root_dir/index.html";
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$workerman_file_extension = 'html';
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}
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}
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// File exsits.
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if (is_file($workerman_file)) {
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// Security check.
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if ((!($workerman_request_realpath = realpath($workerman_file)) || !($workerman_root_dir_realpath = realpath($workerman_root_dir))) || 0 !== strpos($workerman_request_realpath,
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$workerman_root_dir_realpath)
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) {
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Http::header('HTTP/1.1 400 Bad Request');
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$connection->close('<h1>400 Bad Request</h1>');
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return;
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}
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$workerman_file = realpath($workerman_file);
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// Request php file.
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if ($workerman_file_extension === 'php') {
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$workerman_cwd = getcwd();
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chdir($workerman_root_dir);
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ini_set('display_errors', 'off');
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ob_start();
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// Try to include php file.
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try {
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// $_SERVER.
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$_SERVER['REMOTE_ADDR'] = $connection->getRemoteIp();
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$_SERVER['REMOTE_PORT'] = $connection->getRemotePort();
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include $workerman_file;
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} catch (\Exception $e) {
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// Jump_exit?
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if ($e->getMessage() != 'jump_exit') {
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echo $e;
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}
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}
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$content = ob_get_clean();
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ini_set('display_errors', 'on');
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if (strtolower($_SERVER['HTTP_CONNECTION']) === "keep-alive") {
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$connection->send($content);
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} else {
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$connection->close($content);
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}
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chdir($workerman_cwd);
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return;
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}
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// Send file to client.
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return self::sendFile($connection, $workerman_file);
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} else {
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// 404
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Http::header("HTTP/1.1 404 Not Found");
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$connection->close('<html><head><title>404 File not found</title></head><body><center><h3>404 Not Found</h3></center></body></html>');
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return;
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}
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}
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public static function sendFile($connection, $file_path)
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{
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// Check 304.
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$info = stat($file_path);
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$modified_time = $info ? date('D, d M Y H:i:s', $info['mtime']) . ' GMT' : '';
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if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $info) {
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// Http 304.
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if ($modified_time === $_SERVER['HTTP_IF_MODIFIED_SINCE']) {
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// 304
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Http::header('HTTP/1.1 304 Not Modified');
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// Send nothing but http headers..
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$connection->close('');
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return;
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}
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}
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// Http header.
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if ($modified_time) {
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$modified_time = "Last-Modified: $modified_time\r\n";
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}
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$file_size = filesize($file_path);
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$file_info = pathinfo($file_path);
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$extension = isset($file_info['extension']) ? $file_info['extension'] : '';
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$file_name = isset($file_info['filename']) ? $file_info['filename'] : '';
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$header = "HTTP/1.1 200 OK\r\n";
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if (isset(self::$mimeTypeMap[$extension])) {
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$header .= "Content-Type: " . self::$mimeTypeMap[$extension] . "\r\n";
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} else {
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$header .= "Content-Type: application/octet-stream\r\n";
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$header .= "Content-Disposition: attachment; filename=\"$file_name\"\r\n";
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}
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$header .= "Connection: keep-alive\r\n";
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$header .= $modified_time;
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$header .= "Content-Length: $file_size\r\n\r\n";
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$trunk_limit_size = 1024*1024;
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if ($file_size < $trunk_limit_size) {
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return $connection->send($header.file_get_contents($file_path), true);
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}
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$connection->send($header, true);
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// Read file content from disk piece by piece and send to client.
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$connection->fileHandler = fopen($file_path, 'r');
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$do_write = function()use($connection)
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{
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// Send buffer not full.
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while(empty($connection->bufferFull))
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{
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// Read from disk.
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$buffer = fread($connection->fileHandler, 8192);
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// Read eof.
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if($buffer === '' || $buffer === false)
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{
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return;
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}
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$connection->send($buffer, true);
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}
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};
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// Send buffer full.
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$connection->onBufferFull = function($connection)
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{
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$connection->bufferFull = true;
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};
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// Send buffer drain.
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$connection->onBufferDrain = function($connection)use($do_write)
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{
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$connection->bufferFull = false;
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$do_write();
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};
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$do_write();
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}
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}
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