php/login.php

<?php
	require '../credentials.php';
	require 'utils.php';
	require_once("security.php");

	$credentials = new Credentials();
	$usersdb = $credentials->usersdb();

	date_default_timezone_set("Europe/Madrid");
	
	if (!isset($_POST["user"])) {
		header("Location: /?wronguser=1");
		exit();
	}

	$user = $_POST["user"];
	$password = $_POST["password"] ?? "";

	$ok = Security::signIn($user, $password);

	// Redirect if wrong
	if (!$ok) {
		header("Location: /?wrongpassword=1");
		exit();
	}

	// Success, proceed to main page
	header("Location: /main.php");