boot.php

<?php
// 调试开关，正式部署时应该设置为false
defined('DEBUG') or define('DEBUG', true);

// 是否网站模式
defined('SITE_MODE') or define('SITE_MODE', false);

define('ROOT_DIR', __DIR__);

require __DIR__.'/vendor/autoload.php';
require __DIR__.'/src/functions.php';

\Owl\Application::registerNamespace('\\', __DIR__.'/src');

set_error_handler(function ($errno, $error, $file = null, $line = null) {
    if (error_reporting() & $errno) {
        throw new \ErrorException($error, $errno, $errno, $file, $line);
    }

    return true;
});

if (!SITE_MODE) {
    __bootstrap();
}

function __bootstrap()
{
    static $boot = false;

    if ($boot) {
        return true;
    }

    $boot = true;

    // 加载配置文件
    \Owl\Config::merge(require ROOT_DIR.'/config/main.php');

    // 初始化外部服务容器
    \Owl\Service\Container::getInstance()->setServices(\Owl\Config::get('services'));
}

function __ini_app(\Owl\Application $app)
{
    $app->middleware(function ($request, $response) {
        $start = microtime(true);

        yield;

        $use_time = (microtime(true) - $start) * 1000;
        $response->withHeader('x-run-time', (int) $use_time);
    });

    $router = new \Owl\Mvc\Router([
        'namespace' => '\Controller',
    ]);
    $app->middleware(function ($request, $response) use ($router) {
        $router->execute($request, $response);
    });

    $app->setExceptionHandler(function ($exception, $request, $response) {
        if ($exception instanceof \Owl\Http\Exception) {
            $status = $exception->getCode();
        } else {
            $status = 500;
            log_exception(get_logger('default'), $exception);
        }

        $response->withStatus($status);

        if (DEBUG) {
            foreach (__exception_headers($exception, 8) as $key => $value) {
                $response->withHeader($key, $value);
            }
        }

        if (!$request->isAjax()) {
            $view = new \Owl\Mvc\View(ROOT_DIR.'/src/View');
            $response->write($view->render('_error', ['exception' => $exception]));
        }
    });

    return $app;
}

function __get_fpm_app()
{
    static $app;

    if (!$app) {
        __bootstrap();

        $app = new \Owl\Application();
        $app = __ini_app($app);
    }

    return $app;
}

function __get_swoole_app(array $config)
{
    $app = new \Owl\Swoole\Application($config['server']['ip'], $config['server']['port']);

    if (isset($config['swoole_setting']) && $config['swoole_setting']) {
        $app->getSwooleServer()->set($config['swoole_setting']);
    }

    $server = $app->getSwooleServer();

    $server->on('start', function () use ($config) {
        $pid = posix_getpid();

        if (isset($config['server']['pid_file'])) {
            file_put_contents($config['server']['pid_file'], $pid);
        }

        echo sprintf("Server PID: %d\n", $pid);
        echo sprintf("Listening http://%s:%d/ ...\n", $config['server']['ip'], $config['server']['port']);
    });

    $server->on('shutdown', function () use ($config) {
        if (isset($config['server']['pid_file']) && file_exists($config['server']['pid_file'])) {
            unlink($config['server']['pid_file']);
        }
    });

    // 在workstart之后再bootstrap，就可以通过server reload重置应用配置
    $server->on('workerstart', function () {
        __bootstrap();
    });

    return __ini_app($app);
}

function __exception_headers($exception, $max_line)
{
    if ($previous = $exception->getPrevious()) {
        return __exception_headers($previous, $max_line);
    }

    $headers = [];

    $message = $exception->getMessage();
    if ($pos = strpos($message, "\n")) {
        $message = substr($message, 0, $pos);
    }

    $headers['X-Exception'] = sprintf('%s(%d) %s', get_class($exception), $exception->getCode(), $message);

    foreach (explode("\n", $exception->getTraceAsString()) as $index => $line) {
        $key = sprintf('X-Exception-Trace-%02d', $index);
        $headers[$key] = $line;
    }

    return array_splice($headers, 0, $max_line);
}