gnu-social/plugins/RequireValidatedEmail/RequireValidatedEmailPlugin.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
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* Plugin that requires the user to have a validated email address before they
* can post notices
*
* @category Plugin
* @package GNUsocial
* @author Craig Andrews <candrews@integralblue.com>
* @author Brion Vibber <brion@status.net>
* @author Evan Prodromou <evan@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @copyright 2011 StatusNet Inc. http://status.net/
* @copyright 2009-2013 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
defined('GNUSOCIAL') || die();
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/**
* Plugin for requiring a validated email before posting.
*
* Enable this plugin using addPlugin('RequireValidatedEmail');
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* @copyright 2009-2013 Free Software Foundation, Inc http://www.fsf.org
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* @copyright 2009-2010 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
class RequireValidatedEmailPlugin extends Plugin
{
const PLUGIN_VERSION = '2.0.0';
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/**
* Users created before this date will be exempted
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* without the validation requirement.
*/
public $exemptBefore = null;
// Alternative more obscure term for exemption dates
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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', [
* 'trustedOpenIDs' => [
* '!^https?://\w+\.wikihow\.com/!',
* '!^https?://\w+\.wikipedia\.org/!',
* ],
* ]);
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*/
public $trustedOpenIDs = [];
/**
* Whether or not to disallow login for unvalidated users.
*/
public $disallowLogin = false;
public function onRouterInitialized(URLMapper $m)
{
$m->connect(
'main/confirmfirst/:code',
['action' => 'confirmfirstemail']
);
return true;
}
/**
* Event handler for notice saves; rejects the notice
* if user's address isn't validated.
*
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* @param Notice $notice The notice being saved
*
* @return bool hook result code
*/
public function onStartNoticeSave(Notice $notice)
{
$author = $notice->getProfile();
if (!$author->isLocal()) {
// remote notice
return true;
}
$user = $author->getUser();
if ($user !== common_current_user()) {
// Not the current user, must be legitimate (like welcomeuser)
return true;
}
if (!$this->validated($user)) {
// TRANS: Client exception thrown when trying to post notices before validating an e-mail address.
$msg = _m('You must validate your email address before posting.');
throw new ClientException($msg);
}
return true;
}
/**
* Event handler for registration attempts; rejects the registration
* if email field is missing.
*
* @param Action $action Action being executed
*
* @return bool hook result code
*/
public function onStartRegisterUser(&$user, &$profile)
{
$email = $user->email;
if (empty($email)) {
// TRANS: Client exception thrown when trying to register without providing an e-mail address.
throw new ClientException(_m('You must provide an email address to register.'));
}
return true;
}
/**
* Check if a user has a validated email address or was
* otherwise exempted.
*
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* @param User $user User to valide
*
* @return bool
*/
protected function validated(User $user): bool
{
// The email field is only stored after validation...
// Until then you'll find them in confirm_address.
$knownGood = (
!empty($user->email)
|| $this->exempted($user)
|| $this->hasTrustedOpenID($user)
);
// Give other plugins a chance to override, if they can validate
// that somebody's ok despite a non-validated email.
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// @todo FIXME: This isn't how to do it! Use Start*/End* instead
Event::handle(
'RequireValidatedEmailPlugin_Override',
[$user, &$knownGood]
);
return $knownGood;
}
/**
* Check if a user was created before the exemption date.
* If so, we won't need to check for validation.
*
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* @param User $user User to check
*
* @return bool true if user is exempted
*/
protected function exempted(User $user): bool
{
$exempt_before = ($this->exemptBefore ?? $this->grandfatherCutoff);
if (!empty($exempt_before)) {
$utc_timezone = new DateTimeZone('UTC');
$created_date = new DateTime($user->created, $utc_timezone);
$exempt_date = new DateTime($exempt_before, $utc_timezone);
if ($created_date < $exempt_date) {
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.
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*
* @param User $user User to check
*
* @return bool true if user has a trusted OpenID.
*/
public function hasTrustedOpenID(User $user)
{
if ($this->trustedOpenIDs && class_exists('User_openid')) {
foreach ($this->trustedOpenIDs as $regex) {
$oid = new User_openid();
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$oid->user_id = $user->id;
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$oid->find();
while ($oid->fetch()) {
if (preg_match($regex, $oid->canonical)) {
return true;
}
}
}
}
return false;
}
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/**
* Add version information for this plugin.
*
* @param array &$versions Array of associative arrays of version data
*
* @return boolean hook value
*/
public function onPluginVersion(array &$versions): bool
{
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$versions[] =
array('name' => 'Require Validated Email',
'version' => self::PLUGIN_VERSION,
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'author' => 'Craig Andrews, '.
'Evan Prodromou, '.
'Brion Vibber',
'homepage' =>
GNUSOCIAL_ENGINE_REPO_URL . 'tree/master/plugins/RequireValidatedEmail',
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'rawdescription' =>
// TRANS: Plugin description.
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_m('Disables posting without a validated email address.'));
return true;
}
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/**
* Show an error message about validating user email before posting
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*
* @param string $tag Current tab tag value
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* @param Action $action action being shown
* @param Form $form object producing the form
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*
* @return boolean hook value
*/
public function onStartMakeEntryForm($tag, $action, &$form)
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{
$user = common_current_user();
if (!empty($user)) {
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if (!$this->validated($user)) {
$action->element('div', array('class'=>'error'), _m('You must validate an email address before posting!'));
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}
}
return true;
}
/**
* Prevent unvalidated folks from creating spam groups.
*
* @param Profile $profile User profile we're checking
* @param string $right rights key
* @param boolean $result if overriding, set to true/false has right
* @return boolean hook result value
*/
public function onUserRightsCheck(Profile $profile, $right, &$result)
{
if ($right == Right::CREATEGROUP ||
($this->disallowLogin && ($right == Right::WEBLOGIN || $right == Right::API))) {
$user = User::getKV('id', $profile->id);
if ($user && !$this->validated($user)) {
$result = false;
return false;
}
}
return true;
}
public function onLoginAction($action, &$login)
{
if ($action == 'confirmfirstemail') {
$login = true;
return false;
}
return true;
}
}