Official Addons for the Friendica Communications Platform. (please note that this is a clone of the repository at github, issues are handled there)
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<?php
/**
* Name: blackout
* Description: Blackout your ~friendica node during a given period
* License: MIT
* Version: 1.1
* Author: Tobias Diekershoff <https://social.diekershoff.de/~tobias>
*
* About
* =====
*
* This addon will allow you to enter a date/time period during which
* all your ~friendica visitors from the web will be redirected to a page
* you can configure in the admin panel as well.
*
* Calls to the API and the communication with other ~friendica nodes is
* not effected from this addon.
*
* If you enter a period the current date would be affected none of the
* currently logged in users will be effected as well. But if they log
* out they can't login again. That way you dear admin can double check
* the entered time periode and fix typos without having to hack the
* database directly.
*
* License
* =======
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
use Friendica\Core\Hook;
use Friendica\Core\Logger;
use Friendica\Core\Renderer;
use Friendica\Core\System;
use Friendica\DI;
function blackout_install() {
Hook::register('page_header', 'addon/blackout/blackout.php', 'blackout_redirect');
}
function blackout_redirect ($a, $b) {
// if we have a logged in user, don't throw her out
if (local_user()) {
return true;
}
// else...
$mystart = DI::config()->get('blackout','begindate');
$myend = DI::config()->get('blackout','enddate');
$myurl = DI::config()->get('blackout','url');
$now = time();
$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart);
$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend);
if ( $date1 && $date2 ) {
$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart)->format('U');
$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend)->format('U');
} else {
$date1 = 0;
$date2 = 0;
}
if (( $date1 <= $now ) && ( $now <= $date2 )) {
Logger::log('redirecting user to blackout page');
System::externalRedirect($myurl);
}
}
function blackout_addon_admin(&$a, &$o) {
$mystart = DI::config()->get('blackout','begindate');
if (! is_string($mystart)) { $mystart = "YYYY-MM-DD hh:mm"; }
$myend = DI::config()->get('blackout','enddate');
if (! is_string($myend)) { $myend = "YYYY-MM-DD hh:mm"; }
$myurl = DI::config()->get('blackout','url');
if (! is_string($myurl)) { $myurl = "https://www.example.com"; }
$t = Renderer::getMarkupTemplate( "admin.tpl", "addon/blackout/" );
$date1 = DateTime::createFromFormat('Y-m-d G:i', $mystart);
$date2 = DateTime::createFromFormat('Y-m-d G:i', $myend);
// a note for the admin
$adminnote = "";
if ($date2 < $date1) {
$adminnote = DI::l10n()->t("The end-date is prior to the start-date of the blackout, you should fix this.");
} else {
$adminnote = DI::l10n()->t("Please double check the current settings for the blackout. It will begin on <strong>%s</strong> and end on <strong>%s</strong>.", $mystart, $myend);
}
$o = Renderer::replaceMacros($t, [
'$submit' => DI::l10n()->t('Save Settings'),
'$rurl' => ["rurl", DI::l10n()->t("Redirect URL"), $myurl, DI::l10n()->t("All your visitors from the web will be redirected to this URL."), "", "", "url"],
'$startdate' => ["startdate", DI::l10n()->t("Begin of the Blackout"), $mystart, DI::l10n()->t("Format is <tt>YYYY-MM-DD hh:mm</tt>; <em>YYYY</em> year, <em>MM</em> month, <em>DD</em> day, <em>hh</em> hour and <em>mm</em> minute.")],
'$enddate' => ["enddate", DI::l10n()->t("End of the Blackout"), $myend, ""],
'$adminnote' => $adminnote,
'$aboutredirect' => DI::l10n()->t("<strong>Note</strong>: The redirect will be active from the moment you press the submit button. Users currently logged in will <strong>not</strong> be thrown out but can't login again after logging out while the blackout is still in place."),
]);
}
function blackout_addon_admin_post (&$a) {
$begindate = trim($_POST['startdate']);
$enddate = trim($_POST['enddate']);
$url = trim($_POST['rurl']);
DI::config()->set('blackout','begindate',$begindate);
DI::config()->set('blackout','enddate',$enddate);
DI::config()->set('blackout','url',$url);
}