From 4c6d80643398a11020d7f9f6c6682de90cbab9aa Mon Sep 17 00:00:00 2001 From: Robert Kaiser Date: Fri, 28 Oct 2016 17:42:57 +0200 Subject: [PATCH] move session init into utils, re-fetch session after login --- authutils.php-class | 35 +++ index.php | 525 +++++++++++++++++++++----------------------- 2 files changed, 288 insertions(+), 272 deletions(-) diff --git a/authutils.php-class b/authutils.php-class index 555721e..bcf1b38 100755 --- a/authutils.php-class +++ b/authutils.php-class @@ -31,6 +31,9 @@ class AuthUtils { // function checkForSecureConnection() // Check is the connection is secure and return an array of error messages (empty if it's secure). // + // function initSession() + // Initialize a session. Returns an associative array of all the DB fields of the session. + // // function checkPasswordConstraints($new_password, $user_email) // Check password constraints and return an array of error messages (empty if all constraints are met). // @@ -61,6 +64,7 @@ class AuthUtils { function __construct($settings, $db) { // *** constructor *** $this->db = $db; + $this->db->exec("SET time_zone='+00:00';"); // Execute directly on PDO object, set session to UTC to make our gmdate() values match correctly. $this->running_on_localhost = preg_match('/^((.+\.)?localhost|127\.0\.0\.\d+)$/', $_SERVER['SERVER_NAME']); if (array_key_exists('pwd_cost', $settings)) { $this->pwd_cost = $settings['pwd_cost']; @@ -90,6 +94,37 @@ class AuthUtils { return $errors; } + function initSession() { + $session = null; + if (strlen(@$_COOKIE['sessionkey'])) { + // Fetch the session - or at least try to. + $result = $this->db->prepare('SELECT * FROM `auth_sessions` WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); + $result->execute(array(':sesskey' => $_COOKIE['sessionkey'], ':expire' => gmdate('Y-m-d H:i:s'))); + $row = $result->fetch(PDO::FETCH_ASSOC); + if ($row) { + $session = $row; + } + } + if (is_null($session)) { + // Create new session and set cookie. + $sesskey = $this->createSessionKey(); + setcookie('sessionkey', $sesskey, 0, "", "", !$this->running_on_localhost, true); // Last two params are secure and httponly, secure is not set on localhost. + $result = $this->db->prepare('INSERT INTO `auth_sessions` (`sesskey`, `time_expire`) VALUES (:sesskey, :expire);'); + $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s', strtotime('+5 minutes')))); + // After insert, actually fetch the session row from the DB so we have all values. + $result = $this->db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); + $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s'))); + $row = $result->fetch(PDO::FETCH_ASSOC); + if ($row) { + $session = $row; + } + else { + $this->log('session_create_failure', 'key: '.$sesskey); + } + } + return $session; + } + function checkPasswordConstraints($new_password, $user_email) { $errors = array(); if ($new_password != trim($new_password)) { diff --git a/index.php b/index.php index 841333b..c69424b 100644 --- a/index.php +++ b/index.php @@ -6,8 +6,6 @@ // Include the common auth system files (including the OAuth2 Server object). require_once(__DIR__.'/authsystem.inc.php'); -$errors = array(); - // Start HTML document as a DOM object. extract(ExtendedDocument::initHTML5()); // sets $document, $html, $head, $title, $body $document->formatOutput = true; // we want a nice output @@ -19,314 +17,297 @@ $head->appendJSFile('authsystem.js'); $title->appendText('KaiRo.at Authentication Server'); $h1 = $body->appendElement('h1', 'KaiRo.at Authentication Server'); -$errors += $utils->checkForSecureConnection(); +$errors = $utils->checkForSecureConnection(); $para = $body->appendElement('p', _('This login system does not work without JavaScript. Please activate JavaScript for this site to log in.')); $para->setAttribute('id', 'jswarning'); $para->setAttribute('class', 'warn'); if (!count($errors)) { - $session = null; + $session = $utils->initSession(); // Read session or create new session and set cookie. $user = array('id' => 0, 'email' => ''); $pagetype = 'default'; - $db->exec("SET time_zone='+00:00';"); // Execute directly on PDO object, set session to UTC to make our gmdate() values match correctly. - if (strlen(@$_COOKIE['sessionkey'])) { - // Fetch the session - or at least try to. - $result = $db->prepare('SELECT * FROM `auth_sessions` WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); - $result->execute(array(':sesskey' => $_COOKIE['sessionkey'], ':expire' => gmdate('Y-m-d H:i:s'))); - $row = $result->fetch(PDO::FETCH_ASSOC); - if ($row) { - $session = $row; - - if (array_key_exists('logout', $_GET)) { - $result = $db->prepare('UPDATE `auth_sessions` SET `logged_in` = FALSE WHERE `id` = :sessid;'); - if (!$result->execute(array(':sessid' => $session['id']))) { - $utils->log('logout_failure', 'session: '.$session['id']); - $errors[] = _('The email address is invalid.'); - } - $session['logged_in'] = 0; - } - elseif (array_key_exists('email', $_POST)) { - if (!preg_match('/^[^@]+@[^@]+\.[^@]+$/', $_POST['email'])) { - $errors[] = _('The email address is invalid.'); - } - elseif ($utils->verifyTimeCode(@$_POST['tcode'], $session)) { - $result = $db->prepare('SELECT `id`, `pwdhash`, `email`, `status`, `verify_hash` FROM `auth_users` WHERE `email` = :email;'); - $result->execute(array(':email' => $_POST['email'])); - $user = $result->fetch(PDO::FETCH_ASSOC); - if ($user['id'] && array_key_exists('pwd', $_POST)) { - // existing user, check password - if (($user['status'] == 'ok') && $utils->pwdVerify(@$_POST['pwd'], $user)) { - // Check if a newer hashing algorithm is available - // or the cost has changed - if ($utils->pwdNeedsRehash($user)) { - // If so, create a new hash, and replace the old one - $newHash = $utils->pwdHash($_POST['pwd']); - $result = $db->prepare('UPDATE `auth_users` SET `pwdhash` = :pwdhash WHERE `id` = :userid;'); - if (!$result->execute(array(':pwdhash' => $newHash, ':userid' => $user['id']))) { - $utils->log('user_hash_save_failure', 'user: '.$user['id']); - } - else { - $utils->log('pwd_rehash_success', 'user: '.$user['id']); - } - } + if (is_null($session)) { + $errors[] = _('The session system is not working. Please contact KaiRo.at and tell the team about this.'); + } + elseif (array_key_exists('logout', $_GET)) { + $result = $db->prepare('UPDATE `auth_sessions` SET `logged_in` = FALSE WHERE `id` = :sessid;'); + if (!$result->execute(array(':sessid' => $session['id']))) { + $utils->log('logout_failure', 'session: '.$session['id']); + $errors[] = _('The email address is invalid.'); + } + $session['logged_in'] = 0; + } + elseif (array_key_exists('email', $_POST)) { + if (!preg_match('/^[^@]+@[^@]+\.[^@]+$/', $_POST['email'])) { + $errors[] = _('The email address is invalid.'); + } + elseif ($utils->verifyTimeCode(@$_POST['tcode'], $session)) { + $result = $db->prepare('SELECT `id`, `pwdhash`, `email`, `status`, `verify_hash` FROM `auth_users` WHERE `email` = :email;'); + $result->execute(array(':email' => $_POST['email'])); + $user = $result->fetch(PDO::FETCH_ASSOC); + if ($user['id'] && array_key_exists('pwd', $_POST)) { + // existing user, check password + if (($user['status'] == 'ok') && $utils->pwdVerify(@$_POST['pwd'], $user)) { + // Check if a newer hashing algorithm is available + // or the cost has changed + if ($utils->pwdNeedsRehash($user)) { + // If so, create a new hash, and replace the old one + $newHash = $utils->pwdHash($_POST['pwd']); + $result = $db->prepare('UPDATE `auth_users` SET `pwdhash` = :pwdhash WHERE `id` = :userid;'); + if (!$result->execute(array(':pwdhash' => $newHash, ':userid' => $user['id']))) { + $utils->log('user_hash_save_failure', 'user: '.$user['id']); + } + else { + $utils->log('pwd_rehash_success', 'user: '.$user['id']); + } + } - // Log user in - update session key for that, see https://wiki.mozilla.org/WebAppSec/Secure_Coding_Guidelines#Login - $utils->log('login', 'user: '.$user['id']); - $sesskey = $utils->createSessionKey(); - setcookie('sessionkey', $sesskey, 0, "", "", !$utils->running_on_localhost, true); // Last two params are secure and httponly, secure is not set on localhost. - // If the session has a user set, create a new one - otherwise take existing session entry. - if (intval($session['user'])) { - $result = $db->prepare('INSERT INTO `auth_sessions` (`sesskey`, `time_expire`, `user`, `logged_in`) VALUES (:sesskey, :expire, :userid, TRUE);'); - $result->execute(array(':sesskey' => $sesskey, ':userid' => $user['id'], ':expire' => gmdate('Y-m-d H:i:s', strtotime('+1 day')))); - // After insert, actually fetch the session row from the DB so we have all values. - $result = $db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); - $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s'))); - $row = $result->fetch(PDO::FETCH_ASSOC); - if ($row) { - $session = $row; - } - else { - $utils->log('create_session_failure', 'at login, prev session: '.$session['id'].', new user: '.$user['id']); - $errors[] = _('The session system is not working. Please contact KaiRo.at and tell the team about this.'); - } - } - else { - $result = $db->prepare('UPDATE `auth_sessions` SET `sesskey` = :sesskey, `user` = :userid, `logged_in` = TRUE, `time_expire` = :expire WHERE `id` = :sessid;'); - if (!$result->execute(array(':sesskey' => $sesskey, ':userid' => $user['id'], ':expire' => gmdate('Y-m-d H:i:s', strtotime('+1 day')), ':sessid' => $session['id']))) { - $utils->log('login_failure', 'session: '.$session['id'].', user: '.$user['id']); - $errors[] = _('Login failed unexpectedly. Please contact KaiRo.at and tell the team about this.'); - } - } - // If a verify_hash if set on a verified user, a password reset had been requested. As a login works right now, cancel that reset request by deleting the hash. - if (strlen(@$user['verify_hash'])) { - $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = \'\' WHERE `id` = :userid;'); - if (!$result->execute(array(':userid' => $user['id']))) { - $utils->log('empty_vhash_failure', 'user: '.$user['id']); - } - else { - $user['verify_hash'] = ''; - } - } + // Log user in - update session key for that, see https://wiki.mozilla.org/WebAppSec/Secure_Coding_Guidelines#Login + $utils->log('login', 'user: '.$user['id']); + $sesskey = $utils->createSessionKey(); + setcookie('sessionkey', $sesskey, 0, "", "", !$utils->running_on_localhost, true); // Last two params are secure and httponly, secure is not set on localhost. + // If the session has a user set, create a new one - otherwise take existing session entry. + if (intval($session['user'])) { + $result = $db->prepare('INSERT INTO `auth_sessions` (`sesskey`, `time_expire`, `user`, `logged_in`) VALUES (:sesskey, :expire, :userid, TRUE);'); + $result->execute(array(':sesskey' => $sesskey, ':userid' => $user['id'], ':expire' => gmdate('Y-m-d H:i:s', strtotime('+1 day')))); + // After insert, actually fetch the session row from the DB so we have all values. + $result = $db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); + $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s'))); + $row = $result->fetch(PDO::FETCH_ASSOC); + if ($row) { + $session = $row; } else { - $errors[] = _('This password is invalid or your email is not verified yet. Did you type them correctly?'); + $utils->log('create_session_failure', 'at login, prev session: '.$session['id'].', new user: '.$user['id']); + $errors[] = _('The session system is not working. Please contact KaiRo.at and tell the team about this.'); } } else { - // new user: check password, create user and send verification; existing users: re-send verification or send password change instructions - if (array_key_exists('pwd', $_POST)) { - $errors += $utils->checkPasswordConstraints(strval($_POST['pwd']), $_POST['email']); + $result = $db->prepare('UPDATE `auth_sessions` SET `sesskey` = :sesskey, `user` = :userid, `logged_in` = TRUE, `time_expire` = :expire WHERE `id` = :sessid;'); + if (!$result->execute(array(':sesskey' => $sesskey, ':userid' => $user['id'], ':expire' => gmdate('Y-m-d H:i:s', strtotime('+1 day')), ':sessid' => $session['id']))) { + $utils->log('login_failure', 'session: '.$session['id'].', user: '.$user['id']); + $errors[] = _('Login failed unexpectedly. Please contact KaiRo.at and tell the team about this.'); } - if (!count($errors)) { - // Put user into the DB - if (!$user['id']) { - $newHash = $utils->pwdHash($_POST['pwd']); - $vcode = $utils->createVerificationCode(); - $result = $db->prepare('INSERT INTO `auth_users` (`email`, `pwdhash`, `status`, `verify_hash`) VALUES (:email, :pwdhash, \'unverified\', :vcode);'); - if (!$result->execute(array(':email' => $_POST['email'], ':pwdhash' => $newHash, ':vcode' => $vcode))) { - $utils->log('user_insert_failure', 'email: '.$_POST['email']); - $errors[] = _('Could not add user. Please contact KaiRo.at and tell the team about this.'); - } - $user = array('id' => $db->lastInsertId(), - 'email' => $_POST['email'], - 'pwdhash' => $newHash, - 'status' => 'unverified', - 'verify_hash' => $vcode); - $utils->log('new_user', 'user: '.$user['id'].', email: '.$user['email']); - } - if ($user['status'] == 'unverified') { - // Send email for verification and show message to point to it. - $mail = new email(); - $mail->setCharset('utf-8'); - $mail->addHeader('X-KAIRO-AUTH', 'email_verification'); - $mail->addRecipient($user['email']); - $mail->setSender('noreply@auth.kairo.at', _('KaiRo.at Authentication Service')); - $mail->setSubject('Email Verification for KaiRo.at Authentication'); - $mail->addMailText(_('Welcome!')."\n\n"); - $mail->addMailText(sprintf(_('This email address, %s, has been used for registration on "%s".'), - $user['email'], _('KaiRo.at Authentication Service'))."\n\n"); - $mail->addMailText(_('Please confirm that registration by clicking the following link (or calling it up in your browser):')."\n"); - $mail->addMailText(($utils->running_on_localhost?'http':'https').'://'.$_SERVER['SERVER_NAME'].strstr($_SERVER['REQUEST_URI'], '?', true) - .'?email='.rawurlencode($user['email']).'&verification_code='.rawurlencode($user['verify_hash'])."\n\n"); - $mail->addMailText(_('With this confirmation, you accept that we handle your data for the purpose of logging you into other websites when you request that.')."\n"); - $mail->addMailText(_('Those websites will get to know your email address but not your password, which we store securely.')."\n"); - $mail->addMailText(_('If you do not call this confirmation link within 72 hours, your data will be deleted from our database.')."\n\n"); - $mail->addMailText(sprintf(_('The %s team'), 'KaiRo.at')); - //$mail->setDebugAddress("robert@localhost"); - $mailsent = $mail->send(); - if ($mailsent) { - $pagetype = 'verification_sent'; - } - else { - $utils->log('verify_mail_failure', 'user: '.$user['id'].', email: '.$user['email']); - $errors[] = _('The confirmation email could not be sent to you. Please contact KaiRo.at and tell the team about this.'); - } - } - else { - // Password reset requested with "Password forgotten?" function. - $vcode = $utils->createVerificationCode(); - $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = :vcode WHERE `id` = :userid;'); - if (!$result->execute(array(':vcode' => $vcode, ':userid' => $user['id']))) { - $utils->log('vhash_set_failure', 'user: '.$user['id']); - $errors[] = _('Could not initiate reset request. Please contact KaiRo.at and tell the team about this.'); - } - else { - $utils->log('pwd_reset_request', 'user: '.$user['id'].', email: '.$user['email']); - $resetcode = $vcode.dechex($user['id'] + $session['id']).'_'.$utils->createTimeCode($session, null, 60); - // Send email with instructions for resetting the password. - $mail = new email(); - $mail->setCharset('utf-8'); - $mail->addHeader('X-KAIRO-AUTH', 'password_reset'); - $mail->addRecipient($user['email']); - $mail->setSender('noreply@auth.kairo.at', _('KaiRo.at Authentication Service')); - $mail->setSubject('How to reset your password for KaiRo.at Authentication'); - $mail->addMailText(_('Hi,')."\n\n"); - $mail->addMailText(sprintf(_('A request for setting a new password for this email address, %s, has been submitted on "%s".'), - $user['email'], _('KaiRo.at Authentication Service'))."\n\n"); - $mail->addMailText(_('You can set a new password by clicking the following link (or calling it up in your browser):')."\n"); - $mail->addMailText(($utils->running_on_localhost?'http':'https').'://'.$_SERVER['SERVER_NAME'].strstr($_SERVER['REQUEST_URI'], '?', true) - .'?email='.rawurlencode($user['email']).'&reset_code='.rawurlencode($resetcode)."\n\n"); - $mail->addMailText(_('If you do not call this confirmation link within 1 hour, this link expires and the existing password is being kept in place.')."\n\n"); - $mail->addMailText(sprintf(_('The %s team'), 'KaiRo.at')); - //$mail->setDebugAddress("robert@localhost"); - $mailsent = $mail->send(); - if ($mailsent) { - $pagetype = 'resetmail_sent'; - } - else { - $utils->log('pwd_reset_mail_failure', 'user: '.$user['id'].', email: '.$user['email']); - $errors[] = _('The email with password reset instructions could not be sent to you. Please contact KaiRo.at and tell the team about this.'); - } - } + else { + // After update, actually fetch the session row from the DB so we have all values. + $result = $db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); + $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s'))); + $row = $result->fetch(PDO::FETCH_ASSOC); + if ($row) { + $session = $row; } } } + // If a verify_hash if set on a verified user, a password reset had been requested. As a login works right now, cancel that reset request by deleting the hash. + if (strlen(@$user['verify_hash'])) { + $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = \'\' WHERE `id` = :userid;'); + if (!$result->execute(array(':userid' => $user['id']))) { + $utils->log('empty_vhash_failure', 'user: '.$user['id']); + } + else { + $user['verify_hash'] = ''; + } + } } else { - $errors[] = _('The form you used was not valid. Possibly it has expired and you need to initiate the action again.'); + $errors[] = _('This password is invalid or your email is not verified yet. Did you type them correctly?'); } } - elseif (array_key_exists('reset', $_GET)) { - if ($session['logged_in']) { - $result = $db->prepare('SELECT `id`,`email` FROM `auth_users` WHERE `id` = :userid;'); - $result->execute(array(':userid' => $session['user'])); - $user = $result->fetch(PDO::FETCH_ASSOC); + else { + // new user: check password, create user and send verification; existing users: re-send verification or send password change instructions + if (array_key_exists('pwd', $_POST)) { + $errors += $utils->checkPasswordConstraints(strval($_POST['pwd']), $_POST['email']); + } + if (!count($errors)) { + // Put user into the DB if (!$user['id']) { - $utils->log('reset_user_read_failure', 'user: '.$session['user']); + $newHash = $utils->pwdHash($_POST['pwd']); + $vcode = $utils->createVerificationCode(); + $result = $db->prepare('INSERT INTO `auth_users` (`email`, `pwdhash`, `status`, `verify_hash`) VALUES (:email, :pwdhash, \'unverified\', :vcode);'); + if (!$result->execute(array(':email' => $_POST['email'], ':pwdhash' => $newHash, ':vcode' => $vcode))) { + $utils->log('user_insert_failure', 'email: '.$_POST['email']); + $errors[] = _('Could not add user. Please contact KaiRo.at and tell the team about this.'); + } + $user = array('id' => $db->lastInsertId(), + 'email' => $_POST['email'], + 'pwdhash' => $newHash, + 'status' => 'unverified', + 'verify_hash' => $vcode); + $utils->log('new_user', 'user: '.$user['id'].', email: '.$user['email']); } - $pagetype = 'resetpwd'; - } - else { - // Display form for entering email. - $pagetype = 'resetstart'; - } - } - elseif (array_key_exists('verification_code', $_GET)) { - $result = $db->prepare('SELECT `id`,`email` FROM `auth_users` WHERE `email` = :email AND `status` = \'unverified\' AND `verify_hash` = :vcode;'); - $result->execute(array(':email' => @$_GET['email'], ':vcode' => $_GET['verification_code'])); - $user = $result->fetch(PDO::FETCH_ASSOC); - if ($user['id']) { - $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = \'\', `status` = \'ok\' WHERE `id` = :userid;'); - if (!$result->execute(array(':userid' => $user['id']))) { - $utils->log('verification_save_failure', 'user: '.$user['id']); - $errors[] = _('Could not save confirmation. Please contact KaiRo.at and tell the team about this.'); + if ($user['status'] == 'unverified') { + // Send email for verification and show message to point to it. + $mail = new email(); + $mail->setCharset('utf-8'); + $mail->addHeader('X-KAIRO-AUTH', 'email_verification'); + $mail->addRecipient($user['email']); + $mail->setSender('noreply@auth.kairo.at', _('KaiRo.at Authentication Service')); + $mail->setSubject('Email Verification for KaiRo.at Authentication'); + $mail->addMailText(_('Welcome!')."\n\n"); + $mail->addMailText(sprintf(_('This email address, %s, has been used for registration on "%s".'), + $user['email'], _('KaiRo.at Authentication Service'))."\n\n"); + $mail->addMailText(_('Please confirm that registration by clicking the following link (or calling it up in your browser):')."\n"); + $mail->addMailText(($utils->running_on_localhost?'http':'https').'://'.$_SERVER['SERVER_NAME'].strstr($_SERVER['REQUEST_URI'], '?', true) + .'?email='.rawurlencode($user['email']).'&verification_code='.rawurlencode($user['verify_hash'])."\n\n"); + $mail->addMailText(_('With this confirmation, you accept that we handle your data for the purpose of logging you into other websites when you request that.')."\n"); + $mail->addMailText(_('Those websites will get to know your email address but not your password, which we store securely.')."\n"); + $mail->addMailText(_('If you do not call this confirmation link within 72 hours, your data will be deleted from our database.')."\n\n"); + $mail->addMailText(sprintf(_('The %s team'), 'KaiRo.at')); + //$mail->setDebugAddress("robert@localhost"); + $mailsent = $mail->send(); + if ($mailsent) { + $pagetype = 'verification_sent'; + } + else { + $utils->log('verify_mail_failure', 'user: '.$user['id'].', email: '.$user['email']); + $errors[] = _('The confirmation email could not be sent to you. Please contact KaiRo.at and tell the team about this.'); + } } - $pagetype = 'verification_done'; - } - else { - $errors[] = _('The confirmation link you called is not valid. Possibly it has expired and you need to try registering again.'); - } - } - elseif (array_key_exists('reset_code', $_GET)) { - $reset_fail = true; - $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `email` = :email'); - $result->execute(array(':email' => @$_GET['email'])); - $user = $result->fetch(PDO::FETCH_ASSOC); - if ($user['id']) { - // Deconstruct reset code and verify it. - if (preg_match('/^([0-9a-f]{'.strlen($user['verify_hash']).'})([0-9a-f]+)_(\d+\.\d+)$/', $_GET['reset_code'], $regs)) { - $tcode_sessid = hexdec($regs[2]) - $user['id']; - $result = $db->prepare('SELECT `id`,`sesskey` FROM `auth_sessions` WHERE `id` = :sessid;'); - $result->execute(array(':sessid' => $tcode_sessid)); - $row = $result->fetch(PDO::FETCH_ASSOC); - if ($row) { - $tcode_session = $row; - if (($regs[1] == $user['verify_hash']) && - $utils->verifyTimeCode($regs[3], $session, 60)) { - // Set a new verify_hash for the actual password reset. - $user['verify_hash'] = $utils->createVerificationCode(); - $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = :vcode WHERE `id` = :userid;'); - if (!$result->execute(array(':vcode' => $user['verify_hash'], ':userid' => $user['id']))) { - $utils->log('vhash_reset_failure', 'user: '.$user['id']); - } - $result = $db->prepare('UPDATE `auth_sessions` SET `user` = :userid WHERE `id` = :sessid;'); - if (!$result->execute(array(':userid' => $user['id'], ':sessid' => $session['id']))) { - $utils->log('reset_session_set_user_failure', 'session: '.$session['id']); - } - $pagetype = 'resetpwd'; - $reset_fail = false; + else { + // Password reset requested with "Password forgotten?" function. + $vcode = $utils->createVerificationCode(); + $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = :vcode WHERE `id` = :userid;'); + if (!$result->execute(array(':vcode' => $vcode, ':userid' => $user['id']))) { + $utils->log('vhash_set_failure', 'user: '.$user['id']); + $errors[] = _('Could not initiate reset request. Please contact KaiRo.at and tell the team about this.'); + } + else { + $utils->log('pwd_reset_request', 'user: '.$user['id'].', email: '.$user['email']); + $resetcode = $vcode.dechex($user['id'] + $session['id']).'_'.$utils->createTimeCode($session, null, 60); + // Send email with instructions for resetting the password. + $mail = new email(); + $mail->setCharset('utf-8'); + $mail->addHeader('X-KAIRO-AUTH', 'password_reset'); + $mail->addRecipient($user['email']); + $mail->setSender('noreply@auth.kairo.at', _('KaiRo.at Authentication Service')); + $mail->setSubject('How to reset your password for KaiRo.at Authentication'); + $mail->addMailText(_('Hi,')."\n\n"); + $mail->addMailText(sprintf(_('A request for setting a new password for this email address, %s, has been submitted on "%s".'), + $user['email'], _('KaiRo.at Authentication Service'))."\n\n"); + $mail->addMailText(_('You can set a new password by clicking the following link (or calling it up in your browser):')."\n"); + $mail->addMailText(($utils->running_on_localhost?'http':'https').'://'.$_SERVER['SERVER_NAME'].strstr($_SERVER['REQUEST_URI'], '?', true) + .'?email='.rawurlencode($user['email']).'&reset_code='.rawurlencode($resetcode)."\n\n"); + $mail->addMailText(_('If you do not call this confirmation link within 1 hour, this link expires and the existing password is being kept in place.')."\n\n"); + $mail->addMailText(sprintf(_('The %s team'), 'KaiRo.at')); + //$mail->setDebugAddress("robert@localhost"); + $mailsent = $mail->send(); + if ($mailsent) { + $pagetype = 'resetmail_sent'; + } + else { + $utils->log('pwd_reset_mail_failure', 'user: '.$user['id'].', email: '.$user['email']); + $errors[] = _('The email with password reset instructions could not be sent to you. Please contact KaiRo.at and tell the team about this.'); } } } } - if ($reset_fail) { - $errors[] = _('The password reset link you called is not valid. Possibly it has expired and you need to call the "Password forgotten?" function again.'); - } } - elseif (intval($session['user'])) { - $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `id` = :userid;'); - $result->execute(array(':userid' => $session['user'])); - $user = $result->fetch(PDO::FETCH_ASSOC); - if (!$user['id']) { - $utils->log('user_read_failure', 'user: '.$session['user']); - } - // Password reset requested. - if (array_key_exists('pwd', $_POST) && array_key_exists('reset', $_POST) && array_key_exists('tcode', $_POST)) { - // If not logged in, a password reset needs to have the proper vcode set. - if (!$session['logged_in'] && (!strlen(@$_POST['vcode']) || ($_POST['vcode'] != $user['verify_hash']))) { - $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); - } - // If not logged in, a password reset also needs to have the proper email set. - if (!$session['logged_in'] && !count($errors) && (@$_POST['email_hidden'] != $user['email'])) { - $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); - } - // Check validity of time code. - if (!count($errors) && !$utils->verifyTimeCode($_POST['tcode'], $session)) { - $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); - } - $errors += $utils->checkPasswordConstraints(strval($_POST['pwd']), $user['email']); - if (!count($errors)) { - $newHash = $utils->pwdHash($_POST['pwd']); - $result = $db->prepare('UPDATE `auth_users` SET `pwdhash` = :pwdhash, `verify_hash` = \'\' WHERE `id` = :userid;'); - if (!$result->execute(array(':pwdhash' => $newHash, ':userid' => $session['user']))) { - $utils->log('pwd_reset_failure', 'user: '.$session['user']); - $errors[] = _('Password reset failed. Please contact KaiRo.at and tell the team about this.'); + } + else { + $errors[] = _('The form you used was not valid. Possibly it has expired and you need to initiate the action again.'); + } + } + elseif (array_key_exists('reset', $_GET)) { + if ($session['logged_in']) { + $result = $db->prepare('SELECT `id`,`email` FROM `auth_users` WHERE `id` = :userid;'); + $result->execute(array(':userid' => $session['user'])); + $user = $result->fetch(PDO::FETCH_ASSOC); + if (!$user['id']) { + $utils->log('reset_user_read_failure', 'user: '.$session['user']); + } + $pagetype = 'resetpwd'; + } + else { + // Display form for entering email. + $pagetype = 'resetstart'; + } + } + elseif (array_key_exists('verification_code', $_GET)) { + $result = $db->prepare('SELECT `id`,`email` FROM `auth_users` WHERE `email` = :email AND `status` = \'unverified\' AND `verify_hash` = :vcode;'); + $result->execute(array(':email' => @$_GET['email'], ':vcode' => $_GET['verification_code'])); + $user = $result->fetch(PDO::FETCH_ASSOC); + if ($user['id']) { + $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = \'\', `status` = \'ok\' WHERE `id` = :userid;'); + if (!$result->execute(array(':userid' => $user['id']))) { + $utils->log('verification_save_failure', 'user: '.$user['id']); + $errors[] = _('Could not save confirmation. Please contact KaiRo.at and tell the team about this.'); + } + $pagetype = 'verification_done'; + } + else { + $errors[] = _('The confirmation link you called is not valid. Possibly it has expired and you need to try registering again.'); + } + } + elseif (array_key_exists('reset_code', $_GET)) { + $reset_fail = true; + $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `email` = :email'); + $result->execute(array(':email' => @$_GET['email'])); + $user = $result->fetch(PDO::FETCH_ASSOC); + if ($user['id']) { + // Deconstruct reset code and verify it. + if (preg_match('/^([0-9a-f]{'.strlen($user['verify_hash']).'})([0-9a-f]+)_(\d+\.\d+)$/', $_GET['reset_code'], $regs)) { + $tcode_sessid = hexdec($regs[2]) - $user['id']; + $result = $db->prepare('SELECT `id`,`sesskey` FROM `auth_sessions` WHERE `id` = :sessid;'); + $result->execute(array(':sessid' => $tcode_sessid)); + $row = $result->fetch(PDO::FETCH_ASSOC); + if ($row) { + $tcode_session = $row; + if (($regs[1] == $user['verify_hash']) && + $utils->verifyTimeCode($regs[3], $session, 60)) { + // Set a new verify_hash for the actual password reset. + $user['verify_hash'] = $utils->createVerificationCode(); + $result = $db->prepare('UPDATE `auth_users` SET `verify_hash` = :vcode WHERE `id` = :userid;'); + if (!$result->execute(array(':vcode' => $user['verify_hash'], ':userid' => $user['id']))) { + $utils->log('vhash_reset_failure', 'user: '.$user['id']); } - else { - $pagetype = 'reset_done'; + $result = $db->prepare('UPDATE `auth_sessions` SET `user` = :userid WHERE `id` = :sessid;'); + if (!$result->execute(array(':userid' => $user['id'], ':sessid' => $session['id']))) { + $utils->log('reset_session_set_user_failure', 'session: '.$session['id']); } + $pagetype = 'resetpwd'; + $reset_fail = false; } } } } + if ($reset_fail) { + $errors[] = _('The password reset link you called is not valid. Possibly it has expired and you need to call the "Password forgotten?" function again.'); + } } - if (is_null($session)) { - // Create new session and set cookie. - $sesskey = $utils->createSessionKey(); - setcookie('sessionkey', $sesskey, 0, "", "", !$utils->running_on_localhost, true); // Last two params are secure and httponly, secure is not set on localhost. - $result = $db->prepare('INSERT INTO `auth_sessions` (`sesskey`, `time_expire`) VALUES (:sesskey, :expire);'); - $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s', strtotime('+5 minutes')))); - // After insert, actually fetch the session row from the DB so we have all values. - $result = $db->prepare('SELECT * FROM auth_sessions WHERE `sesskey` = :sesskey AND `time_expire` > :expire;'); - $result->execute(array(':sesskey' => $sesskey, ':expire' => gmdate('Y-m-d H:i:s'))); - $row = $result->fetch(PDO::FETCH_ASSOC); - if ($row) { - $session = $row; + elseif (intval($session['user'])) { + $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `id` = :userid;'); + $result->execute(array(':userid' => $session['user'])); + $user = $result->fetch(PDO::FETCH_ASSOC); + if (!$user['id']) { + $utils->log('user_read_failure', 'user: '.$session['user']); } - else { - $utils->log('session_create_failure', 'key: '.$sesskey); - $errors[] = _('The session system is not working. Please contact KaiRo.at and tell the team about this.'); + // Password reset requested. + if (array_key_exists('pwd', $_POST) && array_key_exists('reset', $_POST) && array_key_exists('tcode', $_POST)) { + // If not logged in, a password reset needs to have the proper vcode set. + if (!$session['logged_in'] && (!strlen(@$_POST['vcode']) || ($_POST['vcode'] != $user['verify_hash']))) { + $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); + } + // If not logged in, a password reset also needs to have the proper email set. + if (!$session['logged_in'] && !count($errors) && (@$_POST['email_hidden'] != $user['email'])) { + $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); + } + // Check validity of time code. + if (!count($errors) && !$utils->verifyTimeCode($_POST['tcode'], $session)) { + $errors[] = _('Password reset failed. The reset form you used was not valid. Possibly it has expired and you need to initiate the password reset again.'); + } + $errors += $utils->checkPasswordConstraints(strval($_POST['pwd']), $user['email']); + if (!count($errors)) { + $newHash = $utils->pwdHash($_POST['pwd']); + $result = $db->prepare('UPDATE `auth_users` SET `pwdhash` = :pwdhash, `verify_hash` = \'\' WHERE `id` = :userid;'); + if (!$result->execute(array(':pwdhash' => $newHash, ':userid' => $session['user']))) { + $utils->log('pwd_reset_failure', 'user: '.$session['user']); + $errors[] = _('Password reset failed. Please contact KaiRo.at and tell the team about this.'); + } + else { + $pagetype = 'reset_done'; + } + } } } } -- 2.43.0