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sakura/_sakura/components/Users.php

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<?php
/*
* User Management
*/
namespace Sakura;
class Users {
// Empty user template
public static $emptyUser = [
'id' => 0,
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'username' => 'Deleted User',
'username_clean' => 'deleted user',
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'password_hash' => '',
'password_salt' => '',
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'password_algo' => 'nologin',
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'password_iter' => 1000,
'password_chan' => 0,
'password_new' => '',
'email' => 'deleted@flashii.net',
'rank_main' => 0,
'ranks' => '[0]',
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'name_colour' => '',
'register_ip' => '127.0.0.1',
'last_ip' => '127.0.0.1',
'usertitle' => 'Non-existent user account',
'profile_md' => '',
'avatar_url' => '',
'background_url' => '',
'regdate' => 0,
'lastdate' => 0,
'lastunamechange' => 0,
'birthday' => '',
'profile_data' => '[]'
];
// Empty rank template
public static $emptyRank = [
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'id' => 0,
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'rankname' => 'Non-existent Rank',
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'multi' => 0,
'colour' => '#444',
'description' => 'A hardcoded dummy rank for fallback.'
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];
// Check if a user is logged in
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public static function checkLogin() {
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// Check if the cookies are set
if(
!isset($_COOKIE[Configuration::getConfig('cookie_prefix') .'id']) ||
!isset($_COOKIE[Configuration::getConfig('cookie_prefix') .'session'])
)
return false;
// Check if the session exists
if(!$session = Session::checkSession(
Session::$userId,
Session::$sessionId
))
return false;
// Extend the cookie times if the remember flag is set
if($session == 2) {
setcookie(Configuration::getConfig('cookie_prefix') .'id', Session::$userId, time() + 604800, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
setcookie(Configuration::getConfig('cookie_prefix') .'session', Session::$sessionId, time() + 604800, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
}
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// Redirect people that need to change their password to the new format
if(self::getUser(Session::$userId)['password_algo'] == 'legacy' && $_SERVER['PHP_SELF'] != '/authenticate.php' && $_SERVER['PHP_SELF'] != '/imageserve.php')
header('Location: /authenticate.php?legacy=true');
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// If everything went through return true
return true;
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}
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// Log a user in
public static function login($username, $password, $remember = false) {
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// Check if authentication is disallowed
if(Configuration::getConfig('lock_authentication'))
return [0, 'AUTH_LOCKED'];
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// Check if the user that's trying to log in actually exists
if(!$uid = self::userExists($username, false))
return [0, 'USER_NOT_EXIST'];
// Get account data
$userData = self::getUser($uid);
// Validate password
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if($userData['password_algo'] == 'nologin') { // Disable logging in to an account
return [0, 'NO_LOGIN'];
} elseif($userData['password_algo'] == 'legacy') { // Shitty legacy method of sha512(strrev(sha512()))
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if(Main::legacyPasswordHash($password) != $userData['password_hash'])
return [0, 'INCORRECT_PASSWORD'];
} else { // PBKDF2 hashing
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if(!Hashing::validate_password($password, [
$userData['password_algo'],
$userData['password_iter'],
$userData['password_salt'],
$userData['password_hash']
]))
return [0, 'INCORRECT_PASSWORD'];
}
// Check if the user is deactivated
if(in_array(0, json_decode($userData['ranks'], true)))
return [0, 'DEACTIVATED'];
// Create a new session
$sessionKey = Session::newSession($userData['id'], $remember);
// Set cookies
setcookie(Configuration::getConfig('cookie_prefix') .'id', $userData['id'], time() + 604800, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
setcookie(Configuration::getConfig('cookie_prefix') .'session', $sessionKey, time() + 604800, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
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// Successful login! (also has a thing for the legacy password system)
return [1, ($userData['password_algo'] == 'legacy' ? 'LEGACY_SUCCESS' : 'LOGIN_SUCESS')];
}
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// Logout and kill the session
public static function logout() {
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// Check if user is logged in
if(!self::checkLogin())
return false;
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// Remove the active session from the database
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if(!Session::deleteSession(Session::$sessionId, true))
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return false;
// Set cookies
setcookie(Configuration::getConfig('cookie_prefix') .'id', 0, time() - 60, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
setcookie(Configuration::getConfig('cookie_prefix') .'session', '', time() - 60, Configuration::getConfig('cookie_path'), Configuration::getConfig('cookie_domain'));
// Return true indicating a successful logout
return true;
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}
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// Register user
public static function register($username, $password, $confirmpass, $email, $tos, $captcha = null, $regkey = null) {
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// Check if authentication is disallowed
if(Configuration::getConfig('lock_authentication'))
return [0, 'AUTH_LOCKED'];
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// Check if registration is even enabled
if(Configuration::getConfig('disable_registration'))
return [0, 'DISABLED'];
// Check if registration codes are required
if(Configuration::getConfig('require_registration_code')) {
// Check if the code is valid
if(!self::checkRegistrationCode($regkey))
return [0, 'INVALID_REG_KEY'];
}
// Check if the user agreed to the ToS
if(!$tos)
return [0, 'TOS'];
// Verify the captcha if it's enabled
if(Configuration::getConfig('recaptcha')) {
if(!Main::verifyCaptcha($captcha)['success'])
return [0, 'CAPTCHA_FAIL'];
}
// Check if the username already exists
if(self::userExists($username, false))
return [0, 'USER_EXISTS'];
// Username too short
if(strlen($username) < 3)
return [0, 'NAME_TOO_SHORT'];
// Username too long
if(strlen($username) > 16)
return [0, 'NAME_TOO_LONG'];
// Check if the given email address is formatted properly
if(!filter_var($email, FILTER_VALIDATE_EMAIL))
return [0, 'INVALID_EMAIL'];
// Check the MX record of the email
if(!Main::checkMXRecord($email))
return [0, 'INVALID_MX'];
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// Check password entropy
if(Main::pwdEntropy($password) < Configuration::getConfig('min_entropy'))
return [0, 'PASS_TOO_SHIT'];
// Passwords do not match
if($password != $confirmpass)
return [0, 'PASS_NOT_MATCH'];
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// Set a few variables
$usernameClean = Main::cleanString($username, true);
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$emailClean = Main::cleanString($email, true);
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$password = Hashing::create_hash($password);
$requireActive = Configuration::getConfig('require_activation');
$userRank = $requireActive ? [0] : [1];
$userRankJson = json_encode($userRank);
// Insert the user into the database
Database::insert('users', [
'username' => $username,
'username_clean' => $usernameClean,
'password_hash' => $password[3],
'password_salt' => $password[2],
'password_algo' => $password[0],
'password_iter' => $password[1],
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'email' => $emailClean,
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'rank_main' => $userRank[0],
'ranks' => $userRankJson,
'register_ip' => Main::getRemoteIP(),
'last_ip' => Main::getRemoteIP(),
'regdate' => time(),
'lastdate' => 0,
'lastunamechange' => time(),
'country' => Main::getCountryCode(),
'profile_data' => '[]'
]);
// Get userid of the new user
$uid = Database::fetch('users', false, ['username_clean' => [$usernameClean, '=']])['id'];
// Check if we require e-mail activation
if($requireActive) {
// Send activation e-mail to user
self::sendActivationMail($uid);
}
// Check if registration codes are required
if(Configuration::getConfig('require_registration_code')) {
// If we do mark the registration code that was used as used
self::markRegistrationCodeUsed($regkey, $uid);
}
// Return true with a specific message if needed
return [1, ($requireActive ? 'EMAILSENT' : 'SUCCESS')];
}
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// Check if a user exists and then send the password forgot email
public static function sendPasswordForgot($username, $email) {
// Check if authentication is disallowed
if(Configuration::getConfig('lock_authentication'))
return [0, 'AUTH_LOCKED'];
// Clean username string
$usernameClean = Main::cleanString($username, true);
$emailClean = Main::cleanString($email, true);
// Do database request
$user = Database::fetch('users', false, [
'username_clean' => [$usernameClean, '='],
'email' => [$emailClean, '=']
]);
// Check if user exists
if(count($user) < 2)
return [0, 'USER_NOT_EXIST'];
// Check if the user is deactivated
if(in_array(0, json_decode($user['ranks'], true)))
return [0, 'DEACTIVATED'];
// Generate the verification key
$verk = Main::newActionCode('LOST_PASS', $user['id'], [
'meta' => [
'password_change' => 1
]
]);
// Build the e-mail
$message = "Hello ". $user['username'] .",\r\n\r\n";
$message .= "You are receiving this notification because you have (or someone pretending to be you has) requested a password reset link to be sent for your account on \"". Configuration::getConfig('sitename') ."\". If you did not request this notification then please ignore it, if you keep receiving it please contact the site administrator.\r\n\r\n";
$message .= "To use this password reset key you need to go to a special page. To do this click the link provided below.\r\n\r\n";
$message .= "http://". Configuration::getLocalConfig('urls', 'main') ."/forgotpassword?pw=true&uid=". $user['id'] ."&key=". $verk ."\r\n\r\n";
$message .= "If successful you should be able to change your password here.\r\n\r\n";
$message .= "Alternatively if the above method fails for some reason you can go to http://". Configuration::getLocalConfig('urls', 'main') ."/forgotpassword?pw=true&uid=". $user['id'] ." and use the key listed below:\r\n\r\n";
$message .= "Verification key: ". $verk ."\r\n\r\n";
$message .= "You can of course change this password yourself via the profile page. If you have any difficulties please contact the site administrator.\r\n\r\n";
$message .= "--\r\n\r\nThanks\r\n\r\n". Configuration::getConfig('mail_signature');
// Send the message
Main::sendMail([$user['email'] => $user['username']], Configuration::getConfig('sitename') .' password restoration', $message);
// Return success
return [1, 'SUCCESS'];
}
// [Flashwave 2015-04-25] Prepare for 5 million password changing functions
// Change legacy passwords after logging in
public static function changeLegacy($oldpass, $newpass, $verpass) {
// Check if user is logged in because I just know someone is going to meme around it
if(!self::checkLogin())
return [0, 'USER_NOT_LOGIN'];
// Get user data
$user = Users::getUser(Session::$userId);
// Check if the user is deactivated
if(in_array(0, json_decode($user['ranks'], true)))
return [0, 'DEACTIVATED'];
// Check if the account is disabled
if('nologin' == $user['password_algo'])
return [0, 'NO_LOGIN'];
// Check if old pass is correct
if(Main::legacyPasswordHash($oldpass) != $user['password_hash'])
return [0, 'INCORRECT_PASSWORD'];
// Check password entropy
if(Main::pwdEntropy($newpass) < Configuration::getConfig('min_entropy'))
return [0, 'PASS_TOO_SHIT'];
// Passwords do not match
if($newpass != $verpass)
return [0, 'PASS_NOT_MATCH'];
// Hash the password
$password = Hashing::create_hash($newpass);
$time = time();
// Update the user
Database::update('users', [
[
'password_hash' => $password[3],
'password_salt' => $password[2],
'password_algo' => $password[0],
'password_iter' => $password[1],
'password_chan' => $time
],
[
'id' => [Session::$userId, '=']
]
]);
// Return success
return [1, 'SUCCESS'];
}
// Reset password with key
public static function resetPassword($verk, $uid, $newpass, $verpass) {
// Check if authentication is disallowed
if(Configuration::getConfig('lock_authentication'))
return [0, 'AUTH_LOCKED'];
// Check password entropy
if(Main::pwdEntropy($newpass) < Configuration::getConfig('min_entropy'))
return [0, 'PASS_TOO_SHIT'];
// Passwords do not match
if($newpass != $verpass)
return [0, 'PASS_NOT_MATCH'];
// Check the verification key
$action = Main::useActionCode('LOST_PASS', $verk, $uid);
// Check if we got a negative return
if(!$action[0])
return [0, $action[1]];
// Hash the password
$password = Hashing::create_hash($newpass);
$time = time();
// Update the user
Database::update('users', [
[
'password_hash' => $password[3],
'password_salt' => $password[2],
'password_algo' => $password[0],
'password_iter' => $password[1],
'password_chan' => $time
],
[
'id' => [$uid, '=']
]
]);
// Return success
return [1, 'SUCCESS'];
}
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// Check if a user exists and then resend the activation e-mail
public static function resendActivationMail($username, $email) {
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// Check if authentication is disallowed
if(Configuration::getConfig('lock_authentication'))
return [0, 'AUTH_LOCKED'];
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// Clean username string
$usernameClean = Main::cleanString($username, true);
$emailClean = Main::cleanString($email, true);
// Do database request
$user = Database::fetch('users', false, [
'username_clean' => [$usernameClean, '='],
'email' => [$emailClean, '=']
]);
// Check if user exists
if(count($user) < 2)
return [0, 'USER_NOT_EXIST'];
// Check if a user is activated
if($user['rank_main'])
return [0, 'USER_ALREADY_ACTIVE'];
// Send activation e-mail
self::sendActivationMail($user['id']);
// Return success
return [1, 'SUCCESS'];
}
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// Send the activation e-mail and do other required stuff
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public static function sendActivationMail($uid, $customKey = null) {
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// Get the user data
$user = Database::fetch('users', false, ['id' => [$uid, '=']]);
// User is already activated or doesn't even exist
if(!count($user) > 1 || $user['rank_main'])
return false;
// Generate activation key
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$activate = ($customKey ? $customKey : Main::newActionCode('ACTIVATE', $uid, [
'user' => [
'rank_main' => 1,
'ranks' => json_encode([1])
]
]));
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// Build the e-mail
$message = "Welcome to ". Configuration::getConfig('sitename') ."!\r\n\r\n";
$message .= "Please keep this e-mail for your records. Your account intormation is as follows:\r\n\r\n";
$message .= "----------------------------\r\n\r\n";
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$message .= "Username: ". $user['username'] ."\r\n\r\n";
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$message .= "Your profile: http://". Configuration::getLocalConfig('urls', 'main') ."/u/". $user['id'] ."\r\n\r\n";
$message .= "----------------------------\r\n\r\n";
$message .= "Please visit the following link in order to activate your account:\r\n\r\n";
$message .= "http://". Configuration::getLocalConfig('urls', 'main') ."/activate?mode=activate&u=". $user['id'] ."&k=". $activate ."\r\n\r\n";
$message .= "Your password has been securely stored in our database and cannot be retrieved. ";
$message .= "In the event that it is forgotten, you will be able to reset it using the email address associated with your account.\r\n\r\n";
$message .= "Thank you for registering.\r\n\r\n";
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$message .= "--\r\n\r\nThanks\r\n\r\n". Configuration::getConfig('mail_signature');
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// Send the message
Main::sendMail([$user['email'] => $user['username']], Configuration::getConfig('sitename') .' Activation Mail', $message);
// Return true indicating that the things have been sent
return true;
}
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// Activating a user
public static function activateUser($uid, $requireKey = false, $key = null) {
// Get the user data
$user = Database::fetch('users', false, ['id' => [$uid, '=']]);
// Check if user exists
if(!count($user) > 1)
return [0, 'USER_NOT_EXIST'];
// Check if user is already activated
if($user['rank_main'])
return [0, 'USER_ALREADY_ACTIVE'];
// Set default values for activation
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$rank = 1;
$ranks = json_encode([1]);
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// Check if a key is set (there's an option to not set one for user management reasons but you can't really get around this anyway)
if($requireKey) {
// Check the action code
$action = Main::useActionCode('ACTIVATE', $key, $uid);
// Check if we got a negative return
if(!$action[0])
return [0, $action[1]];
// Assign the special values
$instructionData = json_decode($action[2], true);
$rank = $instructionData['user']['rank_main'];
$ranks = $instructionData['user']['ranks'];
}
// Activate the account
Database::update('users', [
[
'rank_main' => $rank,
'ranks' => $ranks
],
[
'id' => [$uid, '=']
]
]);
// Return success
return [1, 'SUCCESS'];
}
// Deactivating a user
public static function deactivateUser($uid) {
// Get the user data
$user = Database::fetch('users', false, ['id' => [$uid, '=']]);
// Check if user exists
if(!count($user) > 1)
return [0, 'USER_NOT_EXIST'];
// Check if user is already deactivated
if(!$user['rank_main'])
return [0, 'USER_ALREADY_DEACTIVE'];
// Deactivate the account
Database::update('users', [
[
'rank_main' => 0,
'ranks' => json_encode([0])
],
[
'id' => [$uid, '=']
]
]);
// Return success
return [1, 'SUCCESS'];
}
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// Check if registration code is valid
public static function checkRegistrationCode($code) {
// Get registration key
$keyRow = Database::fetch('regcodes', true, ['code' => [$code, '='], 'key_used' => [0, '=']]);
// Check if it exists and return it
return count($keyRow) ? $keyRow[0]['id'] : false;
}
// Mark registration code as used
public static function markRegistrationCodeUsed($code, $uid = 0) {
// Check if the code exists
if(!$id = self::checkRegistrationCode($code))
return false;
// Mark it as used
Database::update('regcodes', [
[
'used_by' => $uid,
'key_used' => 1
],
[
'id' => [$id, '=']
]
]);
// Return true because yeah
return true;
}
// Create new registration code
public static function createRegistrationCode() {
// Check if we're logged in
if(!self::checkLogin())
return false;
// Check if the user is not exceeding the maximum registration key amount
if(count(Database::fetch('regcodes', true, ['uid' => [Session::$userId, '=']])) >= Configuration::getConfig('max_reg_keys'))
return false;
// Generate a code by MD5'ing some random bullshit
$code = md5('SAKURA'. rand(0, 99999999) . Session::$userId .'NOOKLSISGOD');
// Insert the key into the database
Database::insert('regcodes', [
'code' => $code,
'created_by' => Session::$userId,
'used_by' => 0,
'key_used' => 0
]);
// Return the code
return $code;
}
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// Check if a user exists
public static function userExists($user, $id = true) {
// Clean string
$user = Main::cleanString($user, true);
// Do database request
$user = Database::fetch('users', true, [($id ? 'id' : 'username_clean') => [$user, '=']]);
// Return count (which would return 0, aka false, if nothing was found)
return count($user) ? $user[0]['id'] : false;
}
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// Get user data by id
public static function getUser($id) {
// Execute query
$user = Database::fetch('users', false, ['id' => [$id, '=']]);
// Return false if no user was found
if(empty($user))
return self::$emptyUser;
// If user was found return user data
return $user;
}
// Get rank data by id
public static function getRank($id) {
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// Execute query
$rank = Database::fetch('ranks', false, ['id' => [$id, '=']]);
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// Return false if no rank was found
if(empty($rank))
return self::$emptyRank;
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// If rank was found return rank data
return $rank;
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}
// Get user(s) by IP
public static function getUsersByIP($ip) {
// Get users by registration IP
$registeredFrom = Database::fetch('users', true, ['register_ip' => [$ip, '=']]);
// Get users by last IP
$lastFrom = Database::fetch('users', true, ['last_ip' => [$ip, '='], 'register_ip' => [$ip, '!=']]);
// Merge the arrays
$users = array_merge($registeredFrom, $lastFrom);
// Return the array with users
return $users;
}
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// Get all users
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public static function getAllUsers($includeInactive = true) {
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// Execute query
$getUsers = Database::fetch('users', true);
// Reorder shit
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foreach($getUsers as $user) {
// Skip if inactive and not include deactivated users
if(!$includeInactive && $user['rank_main'] == 0)
continue;
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$users[$user['id']] = $user;
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}
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// and return an array with the users
return $users;
}
// Get all ranks
public static function getAllRanks() {
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// Execute query
$getRanks = Database::fetch('ranks', true);
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// Reorder shit
foreach($getRanks as $rank)
$ranks[$rank['id']] = $rank;
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// and return an array with the ranks
return $ranks;
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}
}