DK2/src/util/auth.php

73 lines
1.8 KiB
PHP

<?php
/**
* Check for a user session. If $_SESSION['user'] already exists, return early. If not, check for a remember me
* cookie. If a remember me cookie exists, validate the session and set $_SESSION['user'].
*/
function auth_check()
{
if (isset($_SESSION['user'])) return true;
if (isset($_COOKIE['remember_me'])) {
$session = Session::find($_COOKIE['remember_me']);
if ($session->validate()) {
$user = User::find($session->user_id);
$_SESSION['user'] = serialize($user);
return true;
}
}
return false;
}
/**
* Ensure a user is logged in, or redirect to the login page. This will also check for a remember me cookie and
* populate the $_SESSION['user'] array.
*/
function auth_only()
{
if (!auth_check()) redirect('/auth/login');
}
/**
* If there is a user logged in, redirect to the home page. Used for when we have a guest-only page.
*/
function guest_only()
{
if (auth_check()) redirect('/');
}
/**
* Ensure the user has a character selected. If they have no character, redirect to the character creation page. Otherwise,
* select the first character attached to the user.
*/
function must_have_character()
{
// If there is a character selected, make sure the session is up to date.
if (user()->char_id !== 0) {
char();
return;
}
// if no characters, redirect to create first
if (user()->char_count() === 0) redirect('/character/create-first');
// if no character selected, select the first one
if (user()->char_id === 0) {
$char = live_db()->query(
'SELECT * FROM characters WHERE user_id = :u ORDER BY id ASC LIMIT 1',
[':u' => user()->id]
)->fetchArray(SQLITE3_ASSOC);
change_user_character($char['id']);
}
}
/**
* The user must be authenticated and have a character.
*/
function auth_only_and_must_have_character()
{
auth_only();
must_have_character();
}