121 lines
4.9 KiB
PHP
121 lines
4.9 KiB
PHP
<?php
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/**
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* Name: blackout
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* Description: Blackout your ~friendica node during a given period, requires PHP >= 5.3
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* License: MIT
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* Version: 1.0
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* Author: Tobias Diekershoff <https://f.diekershoff.de/~tobias>
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*
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* About
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* =====
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*
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* This plugin will allow you to enter a date/time period during which
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* all your ~friendica visitors from the web will be redirected to a page
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* you can configure in the admin panel as well.
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*
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* Calls to the API and the communication with other ~friendica nodes is
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* not effected from this plugin.
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*
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* If you enter a period the current date would be affected none of the
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* currently logged in users will be effected as well. But if they log
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* out they can't login again. That way you dear admin can double check
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* the entered time periode and fix typos without having to hack the
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* database directly.
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*
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* Requirements
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* ============
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*
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* THIS ADDON REQUIRES PHP VERSION 5.3 OR HIGHER.
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*
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* License
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* =======
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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function blackout_install() {
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register_hook('page_header', 'addon/blackout/blackout.php', 'blackout_redirect');
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}
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function blackout_uninstall() {
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unregister_hook('page_header', 'addon/blackout/blackout.php', 'blackout_redirect');
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}
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function blackout_redirect ($a, $b) {
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// if we have a logged in user, don't throw her out
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if (local_user()) {
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return true;
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}
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if (! (version_compare(PHP_VERSION, '5.3.0') >= 0))
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return true;
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// else...
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$mystart = get_config('blackout','begindate');
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$myend = get_config('blackout','enddate');
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$myurl = get_config('blackout','url');
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$now = time();
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$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart);
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$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend);
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if ( $date1 && $date2 ) {
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$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart)->format('U');
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$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend)->format('U');
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} else {
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$date1 = 0;
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$date2 = 0;
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}
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if (( $date1 <= $now ) && ( $now <= $date2 )) {
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logger('redirecting user to blackout page');
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goaway($myurl);
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}
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}
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function blackout_plugin_admin(&$a, &$o) {
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$mystart = get_config('blackout','begindate');
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if (! is_string($mystart)) { $mystart = "YYYY-MM-DD:hhmm"; }
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$myend = get_config('blackout','enddate');
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if (! is_string($myend)) { $myend = "YYYY-MM-DD:hhmm"; }
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$myurl = get_config('blackout','url');
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if (! is_string($myurl)) { $myurl = "http://www.example.com"; }
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$t = get_markup_template( "admin.tpl", "addon/blackout/" );
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$o = replace_macros($t, array(
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'$submit' => t('Save Settings'),
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'$rurl' => array("rurl", "Redirect URL", $myurl, "all your visitors from the web will be redirected to this URL"),
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'$startdate' => array("startdate", "Begin of the Blackout<br />(YYYY-MM-DD hh:mm)", $mystart, "format is <em>YYYY</em> year, <em>MM</em> month, <em>DD</em> day, <em>hh</em> hour and <em>mm</em> minute"),
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'$enddate' => array("enddate", "End of the Blackout<br />(YYYY-MM-DD hh:mm)", $myend, ""),
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));
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$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart);
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$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend);
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if ($date2 < $date1) {
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$o = "<div style='border: 2px solid #f00; bakckground: #b00; text-align: center; padding: 10px; margin: 30px;'>The end-date is prior to the start-date of the blackout, you should fix this.</div>" . $o;
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} else {
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$o = '<p>Please double check that the current settings for the blackout. Begin will be <strong>'.$mystart.'</strong> and it will end <strong>'.$myend.'</strong>.</p>' . $o;
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}
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}
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function blackout_plugin_admin_post (&$a) {
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$begindate = trim($_POST['startdate']);
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$enddate = trim($_POST['enddate']);
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$url = trim($_POST['rurl']);
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set_config('blackout','begindate',$begindate);
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set_config('blackout','enddate',$enddate);
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set_config('blackout','url',$url);
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}
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