gnu-social/actions/recoverpassword.php

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<?php
/*
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2008, Controlez-Vous, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('LACONICA')) { exit(1); }
# You have 24 hours to claim your password
define(MAX_RECOVERY_TIME, 24 * 60 * 60);
class RecoverpasswordAction extends Action
{
function handle($args)
{
parent::handle($args);
if (common_logged_in()) {
$this->client_error(_('You are already logged in!'));
return;
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if ($this->arg('recover')) {
$this->recover_password();
} else if ($this->arg('reset')) {
$this->reset_password();
} else {
$this->client_error(_('Unexpected form submission.'));
}
} else {
if ($this->trimmed('code')) {
$this->check_code();
} else {
$this->show_form();
}
}
}
function check_code()
{
$code = $this->trimmed('code');
$confirm = Confirm_address::staticGet('code', $code);
if (!$confirm) {
$this->client_error(_('No such recovery code.'));
return;
}
if ($confirm->address_type != 'recover') {
$this->client_error(_('Not a recovery code.'));
return;
}
$user = User::staticGet($confirm->user_id);
if (!$user) {
$this->server_error(_('Recovery code for unknown user.'));
return;
}
$touched = strtotime($confirm->modified);
$email = $confirm->address;
# Burn this code
$result = $confirm->delete();
if (!$result) {
common_log_db_error($confirm, 'DELETE', __FILE__);
common_server_error(_('Error with confirmation code.'));
return;
}
# These should be reaped, but for now we just check mod time
# Note: it's still deleted; let's avoid a second attempt!
if ((time() - $touched) > MAX_RECOVERY_TIME) {
common_log(LOG_WARNING,
'Attempted redemption on recovery code ' .
'that is ' . $touched . ' seconds old. ');
$this->client_error(_('This confirmation code is too old. ' .
'Please start again.'));
return;
}
# If we used an outstanding confirmation to send the email,
# it's been confirmed at this point.
if (!$user->email) {
$orig = clone($user);
$user->email = $email;
$result = $user->updateKeys($orig);
if (!$result) {
common_log_db_error($user, 'UPDATE', __FILE__);
$this->server_error(_('Could not update user with confirmed email address.'));
return;
}
}
# Success!
$this->set_temp_user($user);
$this->show_password_form();
}
function set_temp_user(&$user)
{
common_ensure_session();
$_SESSION['tempuser'] = $user->id;
}
function get_temp_user()
{
common_ensure_session();
$user_id = $_SESSION['tempuser'];
if ($user_id) {
$user = User::staticGet($user_id);
}
return $user;
}
function clear_temp_user()
{
common_ensure_session();
unset($_SESSION['tempuser']);
}
function show_top($msg=null)
{
if ($msg) {
common_element('div', 'error', $msg);
} else {
common_element_start('div', 'instructions');
common_element('p', null,
_('If you\'ve forgotten or lost your' .
' password, you can get a new one sent to' .
' the email address you have stored ' .
' in your account.'));
common_element_end('div');
}
}
function show_password_top($msg=null)
{
if ($msg) {
common_element('div', 'error', $msg);
} else {
common_element('div', 'instructions',
_('You\'ve been identified. Enter a ' .
' new password below. '));
}
}
function show_form($msg=null)
{
common_show_header(_('Recover password'), null,
$msg, array($this, 'show_top'));
common_element_start('form', array('method' => 'post',
'id' => 'recoverpassword',
'action' => common_local_url('recoverpassword')));
common_input('nicknameoremail', _('Nickname or email'),
$this->trimmed('nicknameoremail'),
_('Your nickname on this server, ' .
'or your registered email address.'));
common_submit('recover', _('Recover'));
common_element_end('form');
common_show_footer();
}
function show_password_form($msg=null)
{
common_show_header(_('Reset password'), null,
$msg, array($this, 'show_password_top'));
common_element_start('form', array('method' => 'post',
'id' => 'recoverpassword',
'action' => common_local_url('recoverpassword')));
common_hidden('token', common_session_token());
common_password('newpassword', _('New password'),
_('6 or more characters, and don\'t forget it!'));
common_password('confirm', _('Confirm'),
_('Same as password above'));
common_submit('reset', _('Reset'));
common_element_end('form');
common_show_footer();
}
function recover_password()
{
$nore = $this->trimmed('nicknameoremail');
if (!$nore) {
$this->show_form(_('Enter a nickname or email address.'));
return;
}
$user = User::staticGet('email', common_canonical_email($nore));
if (!$user) {
$user = User::staticGet('nickname', common_canonical_nickname($nore));
}
# See if it's an unconfirmed email address
if (!$user) {
$confirm_email = Confirm_address::staticGet('address', common_canonical_email($nore));
if ($confirm_email && $confirm_email->address_type == 'email') {
$user = User::staticGet($confirm_email->user_id);
}
}
if (!$user) {
$this->show_form(_('No user with that email address or username.'));
return;
}
# Try to get an unconfirmed email address if they used a user name
if (!$user->email && !$confirm_email) {
$confirm_email = Confirm_address::staticGet('user_id', $user->id);
if ($confirm_email && $confirm_email->address_type != 'email') {
# Skip non-email confirmations
$confirm_email = null;
}
}
if (!$user->email && !$confirm_email) {
$this->client_error(_('No registered email address for that user.'));
return;
}
# Success! We have a valid user and a confirmed or unconfirmed email address
$confirm = new Confirm_address();
$confirm->code = common_confirmation_code(128);
$confirm->address_type = 'recover';
$confirm->user_id = $user->id;
$confirm->address = (isset($user->email)) ? $user->email : $confirm_email->address;
if (!$confirm->insert()) {
common_log_db_error($confirm, 'INSERT', __FILE__);
$this->server_error(_('Error saving address confirmation.'));
return;
}
$body = "Hey, $user->nickname.";
$body .= "\n\n";
$body .= 'Someone just asked for a new password ' .
'for this account on ' . common_config('site', 'name') . '.';
$body .= "\n\n";
$body .= 'If it was you, and you want to confirm, use the URL below:';
$body .= "\n\n";
$body .= "\t".common_local_url('recoverpassword',
array('code' => $confirm->code));
$body .= "\n\n";
$body .= 'If not, just ignore this message.';
$body .= "\n\n";
$body .= 'Thanks for your time, ';
$body .= "\n";
$body .= common_config('site', 'name');
$body .= "\n";
mail_to_user($user, _('Password recovery requested'), $body, $confirm->address);
common_show_header(_('Password recovery requested'));
common_element('p', null,
_('Instructions for recovering your password ' .
'have been sent to the email address registered to your ' .
'account.'));
common_show_footer();
}
function reset_password()
{
# CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->show_form(_('There was a problem with your session token. Try again, please.'));
return;
}
$user = $this->get_temp_user();
if (!$user) {
$this->client_error(_('Unexpected password reset.'));
return;
}
$newpassword = $this->trimmed('newpassword');
$confirm = $this->trimmed('confirm');
if (!$newpassword || strlen($newpassword) < 6) {
$this->show_password_form(_('Password must be 6 chars or more.'));
return;
}
if ($newpassword != $confirm) {
$this->show_password_form(_('Password and confirmation do not match.'));
return;
}
# OK, we're ready to go
$original = clone($user);
$user->password = common_munge_password($newpassword, $user->id);
if (!$user->update($original)) {
common_log_db_error($user, 'UPDATE', __FILE__);
common_server_error(_('Can\'t save new password.'));
return;
}
$this->clear_temp_user();
if (!common_set_user($user->nickname)) {
common_server_error(_('Error setting user.'));
return;
}
common_real_login(true);
common_show_header(_('Password saved.'));
common_element('p', null, _('New password successfully saved. ' .
'You are now logged in.'));
common_show_footer();
}
}