307 lines
9.6 KiB
PHP
307 lines
9.6 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Restrict the email addresses in a domain to a select whitelist
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Cache
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @author Zach Copley <zach@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Restrict the email addresses to a domain whitelist
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*
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* @category General
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @author Zach Copley <zach@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class DomainWhitelistPlugin extends Plugin
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{
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/**
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* Load related modules when needed
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*
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* @param string $cls Name of the class to be loaded
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*
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* @return boolean hook value; true means continue processing, false
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* means stop.
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*/
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function onAutoload($cls) {
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$base = dirname(__FILE__);
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$lower = strtolower($cls);
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$files = array("$base/classes/$cls.php",
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"$base/lib/$lower.php");
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if (substr($lower, -6) == 'action') {
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$files[] = "$base/actions/" . substr($lower, 0, -6) . ".php";
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}
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foreach ($files as $file) {
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if (file_exists($file)) {
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include_once $file;
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return false;
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}
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}
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return true;
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}
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/**
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* Get the path to the plugin's installation directory. Used
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* to link in js files and whatnot.
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*
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* @return String the absolute path
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*/
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protected function getPath() {
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return preg_replace('/^' . preg_quote(INSTALLDIR, '/') . '\//', '', dirname(__FILE__));
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}
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/**
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* Link in a JavaScript script for the whitelist invite form
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*
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* @param Action $action Action being shown
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*
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* @return boolean hook flag
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*/
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function onEndShowStatusNetScripts($action) {
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$name = $action->arg('action');
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if ($name == 'invite') {
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$action->script($this->getPath() . '/js/whitelistinvite.js');
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}
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return true;
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}
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function onRequireValidatedEmailPlugin_Override($user, &$knownGood)
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{
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$knownGood = (!empty($user->email) && $this->matchesWhitelist($user->email));
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return true;
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}
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function onEndValidateUserEmail($user, $email, &$valid)
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{
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if ($valid) { // it's otherwise valid
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if (!$this->matchesWhitelist($email)) {
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$whitelist = $this->getWhitelist();
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if (count($whitelist) == 1) {
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// TRANS: Client exception thrown when a given e-mailaddress is not in the domain whitelist.
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// TRANS: %s is a whitelisted e-mail domain.
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$message = sprintf(_m('Email address must be in this domain: %s.'),
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$whitelist[0]);
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} else {
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// TRANS: Client exception thrown when a given e-mailaddress is not in the domain whitelist.
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// TRANS: %s are whitelisted e-mail domains separated by comma's (localisable).
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$message = sprintf(_('Email address must be in one of these domains: %s.'),
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// TRANS: Separator for whitelisted domains.
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implode(_m('SEPARATOR',', '), $whitelist));
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}
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throw new ClientException($message);
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}
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}
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return true;
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}
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function onStartAddEmailAddress($user, $email)
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{
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if (!$this->matchesWhitelist($email)) {
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// TRANS: Exception thrown when an e-mail address does not match the site's domain whitelist.
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throw new Exception(_('That email address is not allowed on this site.'));
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}
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return true;
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}
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function onEndValidateEmailInvite($user, $email, &$valid)
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{
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if ($valid) {
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$valid = $this->matchesWhitelist($email);
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}
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return true;
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}
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function matchesWhitelist($email)
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{
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$whitelist = $this->getWhitelist();
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if (empty($whitelist) || empty($whitelist[0])) {
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return true;
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}
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$userDomain = $this->domainFromEmail($email);
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return in_array($userDomain, $whitelist);
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}
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/**
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* Helper function to pull out a domain from
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* an email address
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*
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* @param string $email and email address
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* @return string the domain
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*/
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function domainFromEmail($email)
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{
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$parts = explode('@', $email);
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return strtolower(trim($parts[1]));
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}
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function getWhitelist()
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{
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$whitelist = common_config('email', 'whitelist');
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if (is_array($whitelist)) {
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return $this->sortWhiteList($whitelist);
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} else {
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return explode('|', $whitelist);
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}
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}
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/**
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* This is a filter function passed in to array_filter()
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* in order to strip out the user's domain, which will
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* be re-inserted as the first element (see sortWhitelist()
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* below).
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*
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* @param string $domain domain to check
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* @return boolean whether to include the domain
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*/
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function userDomainFilter($domain)
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{
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$user = common_current_user();
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$userDomain = $this->domainFromEmail($user->email);
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if ($userDomain == $domain) {
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return false;
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}
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return true;
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}
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/**
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* This function sorts the whitelist alphabetically, and sets the
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* current user's domain as the first element in the array of
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* allowed domains. Mostly, this is for the JavaScript on the invite
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* page--in the case of multiple allowed domains, it's nicer if the
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* user's own domain is the first option, and this seemed like a good
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* way to do it.
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*
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* @param array $whitelist whitelist of allowed email domains
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* @return array an ordered or sorted version of the whitelist
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*/
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function sortWhitelist($whitelist)
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{
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$whitelist = array_unique($whitelist);
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natcasesort($whitelist);
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$user = common_current_user();
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if (!empty($user) && !empty($user->email)) {
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$userDomain = $this->domainFromEmail($user->email);
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$orderedWhitelist = array_values(
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array_filter(
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$whitelist,
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array($this, "userDomainFilter")
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)
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);
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array_unshift($orderedWhitelist, $userDomain);
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return $orderedWhitelist;
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}
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return $whitelist;
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}
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/**
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* Show a fancier invite form when domains are restricted to the
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* whitelist.
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*
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* @param action $action the invite action
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* @return boolean hook value
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*/
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function onStartShowInviteForm($action)
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{
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$this->showConfirmDialog($action);
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$form = new WhitelistInviteForm($action, $this->getWhitelist());
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$form->show();
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return false;
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}
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function showConfirmDialog($action)
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{
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// For JQuery UI modal dialog
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$action->elementStart(
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'div',
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// TRANS: Title for invitiation deletion dialog.
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array('id' => 'confirm-dialog', 'title' => _m('Confirmation Required'))
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);
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// TRANS: Confirmation text for invitation deletion dialog.
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$action->text(_m('Really delete this invitation?'));
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$action->elementEnd('div');
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}
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/**
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* This is a bit of a hack. We take the values from the custom
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* whitelist invite form and reformat them so they look like
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* their coming from the the normal invite form.
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*
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* @param action &$action the invite action
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* @return boolean hook value
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*/
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function onStartSendInvitations(&$action)
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{
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$emails = array();
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$usernames = $action->arg('username');
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$domains = $action->arg('domain');
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for($i = 0; $i < count($usernames); $i++) {
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if (!empty($usernames[$i])) {
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$emails[] = $usernames[$i] . '@' . $domains[$i] . "\n";
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}
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}
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$action->args['addresses'] = implode($emails);
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return true;
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}
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function onPluginVersion(&$versions)
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{
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$versions[] = array('name' => 'DomainWhitelist',
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'version' => STATUSNET_VERSION,
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'author' => 'Evan Prodromou, Zach Copley',
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'homepage' => 'http://status.net/wiki/Plugin:DomainWhitelist',
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'rawdescription' =>
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// TRANS: Plugin description.
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_m('Restrict domains for email users.'));
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return true;
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}
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}
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