gnu-social/actions/register.php
Evan Prodromou 2dc50d7e37 CSRF protection in user registration
darcs-hash:20080829054017-84dde-c9268e5c815934dcbca2451dd6c9016f2ac4a03a.gz
2008-08-29 01:40:17 -04:00

216 lines
8.2 KiB
PHP

<?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 RegisterAction extends Action {
function handle($args) {
parent::handle($args);
if (common_config('site', 'closed')) {
common_user_error(_('Registration not allowed.'));
} else if (common_logged_in()) {
common_user_error(_('Already logged in.'));
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$this->try_register();
} else {
$this->show_form();
}
}
function try_register() {
$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;
}
$nickname = $this->trimmed('nickname');
$email = $this->trimmed('email');
$fullname = $this->trimmed('fullname');
$homepage = $this->trimmed('homepage');
$bio = $this->trimmed('bio');
$location = $this->trimmed('location');
# We don't trim these... whitespace is OK in a password!
$password = $this->arg('password');
$confirm = $this->arg('confirm');
# Input scrubbing
$nickname = common_canonical_nickname($nickname);
$email = common_canonical_email($email);
if (!$this->boolean('license')) {
$this->show_form(_('You can\'t register if you don\'t agree to the license.'));
} else if ($email && !Validate::email($email, true)) {
$this->show_form(_('Not a valid email address.'));
} else if (!Validate::string($nickname, array('min_length' => 1,
'max_length' => 64,
'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
$this->show_form(_('Nickname must have only lowercase letters and numbers and no spaces.'));
} else if ($this->nickname_exists($nickname)) {
$this->show_form(_('Nickname already in use. Try another one.'));
} else if (!User::allowed_nickname($nickname)) {
$this->show_form(_('Not a valid nickname.'));
} else if ($this->email_exists($email)) {
$this->show_form(_('Email address already exists.'));
} else if (!is_null($homepage) && (strlen($homepage) > 0) &&
!Validate::uri($homepage, array('allowed_schemes' => array('http', 'https')))) {
$this->show_form(_('Homepage is not a valid URL.'));
return;
} else if (!is_null($fullname) && strlen($fullname) > 255) {
$this->show_form(_('Full name is too long (max 255 chars).'));
return;
} else if (!is_null($bio) && strlen($bio) > 140) {
$this->show_form(_('Bio is too long (max 140 chars).'));
return;
} else if (!is_null($location) && strlen($location) > 255) {
$this->show_form(_('Location is too long (max 255 chars).'));
return;
} else if ($password != $confirm) {
$this->show_form(_('Passwords don\'t match.'));
} else if ($user = User::register(array('nickname' => $nickname, 'password' => $password, 'email' => $email,
'fullname' => $fullname, 'homepage' => $homepage, 'bio' => $bio,
'location' => $location))) {
if (!$user) {
$this->show_form(_('Invalid username or password.'));
return;
}
# success!
if (!common_set_user($user)) {
common_server_error(_('Error setting user.'));
return;
}
# this is a real login
common_real_login(true);
if ($this->boolean('rememberme')) {
common_debug('Adding rememberme cookie for ' . $nickname);
common_rememberme($user);
}
# Re-init language env in case it changed (not yet, but soon)
common_init_language();
$this->show_success();
} else {
$this->show_form(_('Invalid username or password.'));
}
}
# checks if *CANONICAL* nickname exists
function nickname_exists($nickname) {
$user = User::staticGet('nickname', $nickname);
return ($user !== false);
}
# checks if *CANONICAL* email exists
function email_exists($email) {
$email = common_canonical_email($email);
$user = User::staticGet('email', $email);
return ($user !== false);
}
function show_top($error=NULL) {
if ($error) {
common_element('p', 'error', $error);
} else {
common_element('div', 'instructions',
_('You can create a new account to start posting notices.'));
}
}
function show_form($error=NULL) {
global $config;
common_show_header(_('Register'), NULL, $error, array($this, 'show_top'));
common_element_start('form', array('method' => 'post',
'id' => 'login',
'action' => common_local_url('register')));
common_hidden('token', common_session_token());
common_input('nickname', _('Nickname'), $this->trimmed('nickname'),
_('1-64 lowercase letters or numbers, no punctuation or spaces. Required.'));
common_password('password', _('Password'),
_('6 or more characters. Required.'));
common_password('confirm', _('Confirm'),
_('Same as password above. Required.'));
common_input('email', _('Email'), $this->trimmed('email'),
_('Used only for updates, announcements, and password recovery'));
common_input('fullname', _('Full name'),
$this->trimmed('fullname'),
_('Longer name, preferably your "real" name'));
common_input('homepage', _('Homepage'),
$this->trimmed('homepage'),
_('URL of your homepage, blog, or profile on another site'));
common_textarea('bio', _('Bio'),
$this->trimmed('bio'),
_('Describe yourself and your interests in 140 chars'));
common_input('location', _('Location'),
$this->trimmed('location'),
_('Where you are, like "City, State (or Region), Country"'));
common_checkbox('rememberme', _('Remember me'),
$this->boolean('rememberme'),
_('Automatically login in the future; not for shared computers!'));
common_element_start('p');
$attrs = array('type' => 'checkbox',
'id' => 'license',
'name' => 'license',
'value' => 'true');
if ($this->boolean('license')) {
$attrs['checked'] = 'checked';
}
common_element('input', $attrs);
common_text(_('My text and files are available under '));
common_element('a', array(href => $config['license']['url']),
$config['license']['title']);
common_text(_(' except this private data: password, email address, IM address, phone number.'));
common_element_end('p');
common_submit('submit', _('Register'));
common_element_end('form');
common_show_footer();
}
function show_success() {
$nickname = $this->arg('nickname');
common_show_header(_('Registration successful'));
common_element_start('div', 'success');
$instr = sprintf(_('Congratulations, %s! And welcome to %%%%site.name%%%%. From here, you may want to...'. "\n\n" .
'* Go to [your profile](%s) and post your first message.' . "\n" .
'* Add a [Jabber/GTalk address](%%%%action.imsettings%%%%) so you can send notices through instant messages.' . "\n" .
'* [Search for people](%%%%action.peoplesearch%%%%) that you may know or that share your interests. ' . "\n" .
'* Update your [profile settings](%%%%action.profilesettings%%%%) to tell others more about you. ' . "\n" .
'* Read over the [online docs](%%%%doc.help%%%%) for features you may have missed. ' . "\n\n" .
'Thanks for signing up and we hope you enjoy using this service.'),
$nickname, common_local_url('showstream', array('nickname' => $nickname)));
common_raw(common_markup_to_html($instr));
$have_email = $this->trimmed('email');
if ($have_email) {
$emailinstr = _('(You should receive a message by email momentarily, with ' .
'instructions on how to confirm your email address.)');
common_raw(common_markup_to_html($emailinstr));
}
common_element_end('div');
common_show_footer();
}
}