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< ? php
/**
* 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
* Version : 1.0
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* Author : Tobias Diekershoff < https :// f . diekershoff . de /~ tobias >
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*
* About
* =====
*
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* This addon 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
* you can configure in the admin panel as well .
*
* Calls to the API and the communication with other ~ friendica nodes is
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* not effected from this addon .
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*
* 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 .
*
* Requirements
* ============
*
* THIS ADDON REQUIRES PHP VERSION 5.3 OR HIGHER .
*
* 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 :
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*
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* The above copyright notice and this permission notice shall be included in
* 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
* 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 .
*/
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use Friendica\Core\Config ;
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use Friendica\Core\Addon ;
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use Friendica\Core\L10n ;
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function blackout_install () {
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Addon :: registerHook ( 'page_header' , 'addon/blackout/blackout.php' , 'blackout_redirect' );
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}
function blackout_uninstall () {
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Addon :: unregisterHook ( 'page_header' , 'addon/blackout/blackout.php' , 'blackout_redirect' );
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}
function blackout_redirect ( $a , $b ) {
// if we have a logged in user, don't throw her out
if ( local_user ()) {
return true ;
}
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if ( ! ( version_compare ( PHP_VERSION , '5.3.0' ) >= 0 ))
return true ;
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// else...
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$mystart = Config :: get ( 'blackout' , 'begindate' );
$myend = Config :: get ( 'blackout' , 'enddate' );
$myurl = Config :: get ( 'blackout' , 'url' );
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$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 ( 'redirecting user to blackout page' );
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System :: externalRedirect ( $myurl );
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}
}
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function blackout_addon_admin ( & $a , & $o ) {
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$mystart = Config :: get ( 'blackout' , 'begindate' );
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if ( ! is_string ( $mystart )) { $mystart = " YYYY-MM-DD:hhmm " ; }
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$myend = Config :: get ( 'blackout' , 'enddate' );
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if ( ! is_string ( $myend )) { $myend = " YYYY-MM-DD:hhmm " ; }
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$myurl = Config :: get ( '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 ( $t , [
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'$submit' => L10n :: t ( 'Save Settings' ),
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'$rurl' => [ " rurl " , " Redirect URL " , $myurl , " all your visitors from the web will be redirected to this URL " ],
'$startdate' => [ " startdate " , " Begin of the Blackout<br />(YYYY-MM-DD hh:mm) " , $mystart , " format is <em>YYYY</em> year, <em>MM</em> month, <em>DD</em> day, <em>hh</em> hour and <em>mm</em> minute " ],
'$enddate' => [ " 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 );
$date2 = DateTime :: createFromFormat ( 'Y-m-d G:i' , $myend );
if ( $date2 < $date1 ) {
$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 ;
} else {
$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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function blackout_addon_admin_post ( & $a ) {
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$begindate = trim ( $_POST [ 'startdate' ]);
$enddate = trim ( $_POST [ 'enddate' ]);
$url = trim ( $_POST [ 'rurl' ]);
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Config :: set ( 'blackout' , 'begindate' , $begindate );
Config :: set ( 'blackout' , 'enddate' , $enddate );
Config :: set ( 'blackout' , 'url' , $url );
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}