Workerman development: How to implement a web server based on SSL protocol

Workerman Development: How to implement a Web server based on SSL protocol

Introduction:
In the Internet era, data security has become an issue that cannot be ignored, especially It's in web server development. Web servers based on the SSL protocol can ensure the security and integrity of data during transmission. This article will introduce how to use Workerman to develop a Web server based on the SSL protocol and provide specific code examples.

Prerequisites:
Before you start, you need to install the following environment:

• PHP: version 7.1 or above
• Workerman: Can be downloaded from https:/ /www.workerman.net/downloadDownload and install

Step 1: Generate certificate
First, we need to generate an SSL certificate and execute the following command in the terminal:

openssl genrsa -out server.key 2048
openssl req -new -key server.key -out server.csr
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt

After executing the above command, three files will be generated: server.key, server.csr, and server.crt.

Step 2: Create the server file
Create a file called server.php and copy the following code into the file:

use WorkermanWorker;
use WorkermanProtocolsHttpRequest;
use WorkermanProtocolsHttpResponse;

require_once __DIR__.'/vendor/autoload.php';

$worker = new Worker("ssl://0.0.0.0:443/server.crt:/server.key");

$worker->onMessage = function ($connection, $request) {
    $response = new Response();

    // 设置响应头
    $response->withHeader('Content-Type', 'text/html; charset=utf-8');

    // 设置响应体
    $response->withBody('<h1>Hello, Workerman!</h1>');

    // 发送响应
    $connection->send($response);
};

Worker::runAll();

Step 3: Start the web server
Execute the following command in the terminal to start the Web server:

php server.php start

At this point, a Web server based on the SSL protocol has been successfully run.

Step 4: Access the Web server
Enter https://localhost in the browser to access the Web server, and the browser will display the content of "Hello, Workerman!".

Summary:
This article introduces how to use Workerman to develop a Web server based on the SSL protocol, and provides specific code examples. Through this example, you can understand the basic implementation principles of a web server based on the SSL protocol, and be able to develop and apply it accordingly in your own projects.

Appendix: Complete sample code

use WorkermanWorker;
use WorkermanProtocolsHttpRequest;
use WorkermanProtocolsHttpResponse;

require_once __DIR__.'/vendor/autoload.php';

$worker = new Worker("ssl://0.0.0.0:443/server.crt:/server.key");

$worker->onMessage = function ($connection, $request) {
    $response = new Response();

    // 设置响应头
    $response->withHeader('Content-Type', 'text/html; charset=utf-8');

    // 设置响应体
    $response->withBody('<h1>Hello, Workerman!</h1>');

    // 发送响应
    $connection->send($response);
};

Worker::runAll();

(Note: The above code snippets are only examples. Please modify them accordingly according to your own project needs when running.)

Reference Information:

• Workerman official documentation: https://www.workerman.net/doc
• OpenSSL official documentation: https://www.openssl.org/docs/

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