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