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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); }
class LoginAction extends Action {
function is_readonly() {
return true;
}
function handle($args) {
parent::handle($args);
if (common_is_real_login()) {
common_user_error(_('Already logged in.'));
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$this->check_login();
} else {
$this->show_form();
}
}
function check_login() {
# XXX: login throttle
# CSRF protection - token set in common_notice_form()
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->client_error(_('There was a problem with your session token. Try again, please.'));
return;
}
$nickname = common_canonical_nickname($this->trimmed('nickname'));
$password = $this->arg('password');
if (common_check_user($nickname, $password)) {
# success!
if (!common_set_user($nickname)) {
common_server_error(_('Error setting user.'));
return;
}
common_real_login(true);
if ($this->boolean('rememberme')) {
common_debug('Adding rememberme cookie for ' . $nickname);
common_rememberme();
}
# success!
$url = common_get_returnto();
if ($url) {
# We don't have to return to it again
common_set_returnto(NULL);
} else {
$url = common_local_url('all',
array('nickname' =>
$nickname));
}
common_redirect($url);
} else {
$this->show_form(_('Incorrect username or password.'));
return;
}
# success!
if (!common_set_user($user)) {
common_server_error(_('Error setting user.'));
return;
}
common_real_login(true);
if ($this->boolean('rememberme')) {
common_debug('Adding rememberme cookie for ' . $nickname);
common_rememberme($user);
}
# success!
$url = common_get_returnto();
if ($url) {
# We don't have to return to it again
common_set_returnto(NULL);
} else {
$url = common_local_url('all',
array('nickname' =>
$nickname));
}
common_redirect($url);
}
function show_form($error=NULL) {
common_show_header(_('Login'), NULL, $error, array($this, 'show_top'));
common_element_start('form', array('method' => 'post',
'id' => 'login',
'action' => common_local_url('login')));
common_input('nickname', _('Nickname'));
common_password('password', _('Password'));
common_checkbox('rememberme', _('Remember me'), false,
_('Automatically login in the future; ' .
'not for shared computers!'));
common_submit('submit', _('Login'));
common_hidden('token', common_session_token());
common_element_end('form');
common_element_start('p');
common_element('a', array('href' => common_local_url('recoverpassword')),
_('Lost or forgotten password?'));
common_element_end('p');
common_show_footer();
}
function get_instructions() {
if (common_logged_in() &&
!common_is_real_login() &&
common_get_returnto())
{
# rememberme logins have to reauthenticate before
# changing any profile settings (cookie-stealing protection)
return _('For security reasons, please re-enter your ' .
'user name and password ' .
'before changing your settings.');
} else {
return _('Login with your username and password. ' .
'Don\'t have a username yet? ' .
'[Register](%%action.register%%) a new account, or ' .
'try [OpenID](%%action.openidlogin%%). ');
}
}
function show_top($error=NULL) {
if ($error) {
common_element('p', 'error', $error);
} else {
$instr = $this->get_instructions();
$output = common_markup_to_html($instr);
common_element_start('div', 'instructions');
common_raw($output);
common_element_end('div');
}
}
}
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