Which files do thinkphp5 generally encrypt?

When deploying ThinkPHP5 applications, in order to increase the security of the application, we generally encrypt certain sensitive files. This article will introduce the files that generally need to be encrypted in ThinkPHP5, as well as the encryption methods.

General files that need to be encrypted

1. Configuration files

Configuration files contain important information such as database passwords. If not encrypted, they can easily be obtained by others, resulting in Data security issues.

2. Controller file

The controller file contains the business logic code of the program. If it is not encrypted, it can easily be obtained by competitors, leading to business leakage.

3. Model file

The model file contains the code for database operations, which includes addition, deletion, modification, and query operations on the database. If it is not encrypted, it can easily be obtained by others, resulting in database data Give way.

4. View file

The view file contains HTML template code. If it is not encrypted, it can easily be obtained by others, causing security issues.

Encryption method

1. Use encryptor

In ThinkPHP5, you can use the encryptor provided by Swoole to encrypt the specified file.

Encryption code example:

use Swoole\Process;

$encrypt_files = [
    __DIR__ . '/../application/config.php',
    __DIR__ . '/../application/database.php',
    __DIR__ . '/../application/admin/controller/User.php',
    __DIR__ . '/../application/admin/model/User.php',
];

// 加密密钥
$key = "1234567890";

// 命令行参数
$argv = [
    'swoole_encryption', // 程序名
    'password', // 用户密码
    'backend', // 用户角色
];

foreach ($encrypt_files as $file) {
    $process = new Process(function () use ($file, $key, $argv) {
        // 执行加密操作
        $encrypted = \Swoole\Encryption\Encrypt::setKey($key)
            ->encrypt(file_get_contents($file));

        // 将加密的内容写入到原始文件中
        file_put_contents($file, $encrypted);

        // 执行命令行命令
        $cmd = implode(' ', $argv);
        exec($cmd);
    });

    $process->start();
}

2. Customized encryption method

In addition to using an encryptor, we can also customize the encryption method. You can MD5 sign the file contents and then write the signed content to the file along with the original content. At runtime, the file content is read and the signature is compared with the original content to verify the integrity of the file.

Encryption code example:

/**
 * 加密文件
 *
 * @param string $file 文件路径
 * @param string $key 加密密钥
 */
function encryptFile($file, $key) {
    $content = file_get_contents($file);
    $signature = md5($content . $key);
    $encrypted_content = $signature . $content;

    file_put_contents($file, $encrypted_content);
}

/**
 * 解密文件
 *
 * @param string $file 文件路径
 * @param string $key 加密密钥
 *
 * @return boolean
 */
function decryptFile($file, $key) {
    $content = file_get_contents($file);
    $signature = substr($content, 0, 32);
    $data = substr($content, 32);
    $md5 = md5($data . $key);

    if ($md5 == $signature) {
        file_put_contents($file, $data);
        return true;
    } else {
        return false;
    }
}

// 待加密的文件列表
$files = [
    "/path/to/config.php",
    "/path/to/controller/User.php",
    "/path/to/model/User.php",
];

$key = "1234567890";

// 对每个文件进行加密
foreach ($files as $file) {
    encryptFile($file, $key);
}

// 对每个文件进行解密
foreach ($files as $file) {
    decryptFile($file, $key);
}

Summary

By encrypting sensitive files, you can ensure the security of your application and prevent data leaks, code competition and other issues. When encrypting files, we can use a third-party encryptor or customize the encryption method. Either way, encryption keys are needed to keep your data secure.

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