77 lines
2.9 KiB
PHP
77 lines
2.9 KiB
PHP
<?php
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/*
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* GNU Social - a federating social network
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* Copyright (C) 2014, Free Software Foundation, Inc.
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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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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
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* @package Plugin
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* @maintainer Mikael Nordfeldth <mmn@hethane.se>
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*/
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class SimpleCaptchaPlugin extends Plugin
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{
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const PLUGIN_VERSION = '2.0.0';
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public function initialize()
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{
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// This probably needs some work. For example with IPv6 you can easily generate new IPs...
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$client_ip = common_client_ip();
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$this->client_ip = $client_ip[0] ?: $client_ip[1]; // [0] is proxy, [1] should be the real IP
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}
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public function onEndRegistrationFormData(Action $action)
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{
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$action->elementStart('li');
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// TRANS: Field label.
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$action->input('simplecaptcha', _m('Captcha'), null,
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// TRANS: The instruction box for our simple captcha plugin
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sprintf(_m('Copy this to the textbox: "%s"'), $this->getCaptchaText()),
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// TRANS: Placeholder in the text box
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/* name=id */ null, /* required */ true, ['placeholder'=>_m('Prove that you are sentient.')]);
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$action->elementEnd('li');
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return true;
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}
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protected function getCaptchaText()
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{
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return common_config('site', 'name');
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}
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public function onStartRegistrationTry(Action $action)
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{
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if ($action->arg('simplecaptcha') !== $this->getCaptchaText()) {
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common_log(LOG_INFO, 'Stopped non-sentient registration of nickname '._ve($action->trimmed('nickname')).' from IP: '._ve($this->client_ip));
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throw new ClientException(_m('Captcha does not match!'));
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}
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return true;
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}
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public function onPluginVersion(array &$versions): bool
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{
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$versions[] = array('name' => 'Simple Captcha',
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'version' => self::PLUGIN_VERSION,
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'author' => 'Mikael Nordfeldth',
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'homepage' => 'https://gnu.io/social',
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'rawdescription' =>
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// TRANS: Plugin description.
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_m('A simple captcha to get rid of spambots.'));
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return true;
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}
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}
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