3 * @copyright Copyright (C) 2020, Friendica
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Module;
24 use Friendica\BaseModule;
25 use Friendica\Core\Renderer;
28 use Friendica\Network\HTTPException;
29 use Friendica\Protocol\Email;
30 use Friendica\Util\Strings;
33 * Invite people to friendica
35 class Invite extends BaseModule
37 public static function post(array $parameters = [])
40 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
43 self::checkFormSecurityTokenRedirectOnError('/', 'send_invite');
46 $config = DI::config();
48 $max_invites = intval($config->get('system', 'max_invites'));
53 $current_invites = intval(DI::pConfig()->get(local_user(), 'system', 'sent_invites'));
54 if ($current_invites > $max_invites) {
55 throw new HTTPException\ForbiddenException(DI::l10n()->t('Total invitation limit exceeded.'));
59 $recipients = !empty($_POST['recipients']) ? explode("\n", $_POST['recipients']) : [];
60 $message = !empty($_POST['message']) ? Strings::escapeTags(trim($_POST['message'])) : '';
63 $invitation_only = false;
64 $invites_remaining = null;
66 if ($config->get('system', 'invitation_only')) {
67 $invitation_only = true;
68 $invites_remaining = DI::pConfig()->get(local_user(), 'system', 'invites_remaining');
69 if ((!$invites_remaining) && (!is_site_admin())) {
70 throw new HTTPException\ForbiddenException();
74 foreach ($recipients as $recipient) {
75 $recipient = trim($recipient);
77 if (!filter_var($recipient, FILTER_VALIDATE_EMAIL)) {
78 notice(DI::l10n()->t('%s : Not a valid email address.', $recipient));
82 if ($invitation_only && ($invites_remaining || is_site_admin())) {
83 $code = Model\Register::createForInvitation();
84 $nmessage = str_replace('$invite_code', $code, $message);
86 if (!is_site_admin()) {
88 if ($invites_remaining >= 0) {
89 DI::pConfig()->set(local_user(), 'system', 'invites_remaining', $invites_remaining);
98 $additional_headers = 'From: ' . $app->user['email'] . "\n"
99 . 'Sender: ' . DI::emailer()->getSiteEmailAddress() . "\n"
100 . 'Content-type: text/plain; charset=UTF-8' . "\n"
101 . 'Content-transfer-encoding: 8bit';
105 Email::encodeHeader(DI::l10n()->t('Please join us on Friendica'), 'UTF-8'),
107 $additional_headers);
112 DI::pConfig()->set(local_user(), 'system', 'sent_invites', $current_invites);
113 if ($current_invites > $max_invites) {
114 notice(DI::l10n()->t('Invitation limit exceeded. Please contact your site administrator.'));
118 notice(DI::l10n()->t('%s : Message delivery failed.', $recipient));
122 notice(DI::l10n()->tt('%d message sent.', '%d messages sent.', $total));
125 public static function content(array $parameters = [])
128 throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
132 $config = DI::config();
136 if ($config->get('system', 'invitation_only')) {
138 $x = DI::pConfig()->get(local_user(), 'system', 'invites_remaining');
139 if ((!$x) && (!is_site_admin())) {
140 throw new HTTPException\ForbiddenException(DI::l10n()->t('You have no more invitations available'));
144 $dirLocation = $config->get('system', 'directory');
145 if (strlen($dirLocation)) {
146 if ($config->get('config', 'register_policy') === Register::CLOSED) {
147 $linkTxt = DI::l10n()->t('Visit %s for a list of public sites that you can join. Friendica members on other sites can all connect with each other, as well as with members of many other social networks.', $dirLocation . '/servers');
149 $linkTxt = DI::l10n()->t('To accept this invitation, please visit and register at %s or any other public Friendica website.', DI::baseUrl()->get())
150 . "\r\n" . "\r\n" . DI::l10n()->t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks. See %s for a list of alternate Friendica sites you can join.', $dirLocation . '/servers');
152 } else { // there is no global directory URL defined
153 if ($config->get('config', 'register_policy') === Register::CLOSED) {
154 return DI::l10n()->t('Our apologies. This system is not currently configured to connect with other public sites or invite members.');
156 $linkTxt = DI::l10n()->t('To accept this invitation, please visit and register at %s.', DI::baseUrl()->get()
157 . "\r\n" . "\r\n" . DI::l10n()->t('Friendica sites all inter-connect to create a huge privacy-enhanced social web that is owned and controlled by its members. They can also connect with many traditional social networks.'));
161 $tpl = Renderer::getMarkupTemplate('invite.tpl');
162 return Renderer::replaceMacros($tpl, [
163 '$form_security_token' => self::getFormSecurityToken('send_invite'),
164 '$title' => DI::l10n()->t('Send invitations'),
165 '$recipients' => ['recipients', DI::l10n()->t('Enter email addresses, one per line:')],
168 DI::l10n()->t('Your message:'),
169 DI::l10n()->t('You are cordially invited to join me and other close friends on Friendica - and help us to create a better social web.') . "\r\n" . "\r\n"
171 . "\r\n" . "\r\n" . (($inviteOnly) ? DI::l10n()->t('You will need to supply this invitation code: $invite_code') . "\r\n" . "\r\n" : '') . DI::l10n()->t('Once you have registered, please connect with me via my profile page at:')
172 . "\r\n" . "\r\n" . DI::baseUrl()->get() . '/profile/' . $app->user['nickname']
173 . "\r\n" . "\r\n" . DI::l10n()->t('For more information about the Friendica project and why we feel it is important, please visit http://friendi.ca') . "\r\n" . "\r\n",
175 '$submit' => DI::l10n()->t('Submit')