plateforme-corres2math/server_files/controllers/ajouter_admin.php

<?php

if (!isset($_SESSION["role"]) || $_SESSION["role"] != Role::ADMIN)
    require_once "server_files/403.php";

$has_error = false;
$error_message = null;

if (isset($_POST["add_admin"])) {
	$admin = new NewAdmin($_POST);
	try {
		$admin->makeVerifications();
		$admin->register();
	}
	catch (AssertionError $e) {
		$has_error = true;
		$error_message = $e->getMessage();
	}
}

class NewAdmin {
	public $surname;
	public $first_name;
	public $email;
	public $password;

	public function __construct($data)
	{
		foreach ($data as $key => $value)
			$this->$key = htmlspecialchars($value);
	}

	public function makeVerifications()
	{
		ensure($this->surname != null && $this->surname != "", "Le nom est invalide.");
		ensure($this->first_name != null && $this->first_name != "", "Le prénom est invalide.");
		ensure(filter_var($this->email, FILTER_VALIDATE_EMAIL), "L'adresse e-mail est invalide.");
		$this->email = strtolower($this->email);
		ensure(!userExists($this->email), "Cette adresse e-mail est déjà utilisée.");
	}

	public function register() {
		global $DB, $YEAR;

		$this->password = genRandomPhrase(16, true);

		$req = $DB->prepare("INSERT INTO `users`(`email`, `pwd_hash`, `surname`, `first_name`, `role`, `year`)
                VALUES (?, ?, ?, ?, ?, ?);");
		$req->execute([$this->email, password_hash($this->password, PASSWORD_BCRYPT), $this->surname, $this->first_name, "ADMIN", $YEAR]);

		Mailer::sendAddAdminMail($this);
	}
}

require_once "server_files/views/ajouter_admin.php";