gnu-social/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php
2010-10-07 09:13:38 -04:00

220 lines
6.6 KiB
PHP

<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin that requires the user to have a validated email address before they
* can post notices
*
* PHP version 5
*
* LICENCE: 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/>.
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @author Brion Vibber <brion@status.net>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Plugin for requiring a validated email before posting.
*
* Enable this plugin using addPlugin('RequireValidatedEmail');
*
* @category Plugin
* @package StatusNet
* @author Craig Andrews <candrews@integralblue.com>
* @author Brion Vibber <brion@status.net>
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @copyright 2009-2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class RequireValidatedEmailPlugin extends Plugin
{
/**
* Users created before this time will be grandfathered in
* without the validation requirement.
*/
public $grandfatherCutoff = null;
/**
* If OpenID plugin is installed, users with a verified OpenID
* association whose provider URL matches one of these regexes
* will be considered to be sufficiently valid for our needs.
*
* For example, to trust WikiHow and Wikipedia OpenID users:
*
* addPlugin('RequireValidatedEmailPlugin', array(
* 'trustedOpenIDs' => array(
* '!^http://\w+\.wikihow\.com/!',
* '!^http://\w+\.wikipedia\.org/!',
* ),
* ));
*/
public $trustedOpenIDs = array();
/**
* Event handler for notice saves; rejects the notice
* if user's address isn't validated.
*
* @param Notice $notice The notice being saved
*
* @return bool hook result code
*/
function onStartNoticeSave($notice)
{
$user = User::staticGet('id', $notice->profile_id);
if (!empty($user)) { // it's a remote notice
if (!$this->validated($user)) {
$msg = _m("You must validate your email address before posting.");
throw new ClientException($msg);
}
}
return true;
}
/**
* Event handler for registration attempts; rejects the registration
* if email field is missing.
*
* @param Action $action Action being executed
*
* @return bool hook result code
*/
function onStartRegistrationTry($action)
{
$email = $action->trimmed('email');
if (empty($email)) {
$action->showForm(_m('You must provide an email address to register.'));
return false;
}
// Default form will run address format validation and reject if bad.
return true;
}
/**
* Check if a user has a validated email address or has been
* otherwise grandfathered in.
*
* @param User $user User to valide
*
* @return bool
*/
protected function validated($user)
{
// The email field is only stored after validation...
// Until then you'll find them in confirm_address.
$knownGood = !empty($user->email) ||
$this->grandfathered($user) ||
$this->hasTrustedOpenID($user);
// Give other plugins a chance to override, if they can validate
// that somebody's ok despite a non-validated email.
// FIXME: This isn't how to do it! Use Start*/End* instead
Event::handle('RequireValidatedEmailPlugin_Override',
array($user, &$knownGood));
return $knownGood;
}
/**
* Check if a user was created before the grandfathering cutoff.
* If so, we won't need to check for validation.
*
* @param User $user User to check
*
* @return bool true if user is grandfathered
*/
protected function grandfathered($user)
{
if ($this->grandfatherCutoff) {
$created = strtotime($user->created . " GMT");
$cutoff = strtotime($this->grandfatherCutoff);
if ($created < $cutoff) {
return true;
}
}
return false;
}
/**
* Override for RequireValidatedEmail plugin. If we have a user who's
* not validated an e-mail, but did come from a trusted provider,
* we'll consider them ok.
*
* @param User $user User to check
*
* @return bool true if user has a trusted OpenID.
*/
function hasTrustedOpenID($user)
{
if ($this->trustedOpenIDs && class_exists('User_openid')) {
foreach ($this->trustedOpenIDs as $regex) {
$oid = new User_openid();
$oid->user_id = $user->id;
$oid->find();
while ($oid->fetch()) {
if (preg_match($regex, $oid->canonical)) {
return true;
}
}
}
}
return false;
}
/**
* Add version information for this plugin.
*
* @param array &$versions Array of associative arrays of version data
*
* @return boolean hook value
*/
function onPluginVersion(&$versions)
{
$versions[] =
array('name' => 'Require Validated Email',
'version' => STATUSNET_VERSION,
'author' => 'Craig Andrews, '.
'Evan Prodromou, '.
'Brion Vibber',
'homepage' =>
'http://status.net/wiki/Plugin:RequireValidatedEmail',
'rawdescription' =>
_m('Disables posting without a validated email address.'));
return true;
}
}