X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=mod%2Fevents.php;h=f147e005459ab85f1b7c21710007c368a833254e;hb=66bf39216b890a0b89f9bef537204a5e637ac8b1;hp=36d8f0cf71efbc1254f287e8466cb4da6a447bd5;hpb=949507d6881b2a24df1d3bbb43c63782f7ac9d49;p=friendica.git

diff --git a/mod/events.php b/mod/events.php
index 36d8f0cf71..f147e00545 100644
--- a/mod/events.php
+++ b/mod/events.php
@@ -1,84 +1,94 @@
 <?php
 /**
- * @fiel mod/events.php
+ * @file mod/events.php
  * @brief The events module
  */
-require_once('include/bbcode.php');
-require_once('include/datetime.php');
-require_once('include/event.php');
-require_once('include/items.php');
 
-function events_init(&$a) {
-	if (! local_user()) {
+use Friendica\App;
+use Friendica\Content\Nav;
+use Friendica\Content\Widget\CalendarExport;
+use Friendica\Core\ACL;
+use Friendica\Core\L10n;
+use Friendica\Core\Logger;
+use Friendica\Core\Renderer;
+use Friendica\Core\System;
+use Friendica\Core\Worker;
+use Friendica\Database\DBA;
+use Friendica\Model\Event;
+use Friendica\Model\Item;
+use Friendica\Model\Profile;
+use Friendica\Module\Login;
+use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Strings;
+use Friendica\Util\Temporal;
+
+require_once 'include/items.php';
+
+function events_init(App $a)
+{
+	if (!local_user()) {
 		return;
 	}
 
-	if ($a->argc == 1) {
-		// if it's a json request abort here becaus we don't
-		// need the widget data
-		if ($a->argv[1] === 'json')
-			return;
+	// If it's a json request abort here because we don't
+	// need the widget data
+	if ($a->argc > 1 && $a->argv[1] === 'json') {
+		return;
+	}
 
-		$cal_widget = widget_events();
+	if (empty($a->page['aside'])) {
+		$a->page['aside'] = '';
+	}
 
-		if (! x($a->page,'aside'))
-			$a->page['aside'] = '';
+	$cal_widget = CalendarExport::getHTML();
 
-		$a->page['aside'] .= $cal_widget;
-	}
+	$a->page['aside'] .= $cal_widget;
 
 	return;
 }
 
-function events_post(&$a) {
+function events_post(App $a)
+{
 
-	logger('post: ' . print_r($_REQUEST,true));
+	Logger::log('post: ' . print_r($_REQUEST, true), Logger::DATA);
 
-	if (! local_user()) {
+	if (!local_user()) {
 		return;
 	}
 
-	$event_id = ((x($_POST,'event_id')) ? intval($_POST['event_id']) : 0);
-	$cid = ((x($_POST,'cid')) ? intval($_POST['cid']) : 0);
-	$uid      = local_user();
+	$event_id = !empty($_POST['event_id']) ? intval($_POST['event_id']) : 0;
+	$cid = !empty($_POST['cid']) ? intval($_POST['cid']) : 0;
+	$uid = local_user();
 
-	$start_text = escape_tags($_REQUEST['start_text']);
-	$finish_text = escape_tags($_REQUEST['finish_text']);
+	$start_text  = Strings::escapeHtml(defaults($_REQUEST, 'start_text', ''));
+	$finish_text = Strings::escapeHtml(defaults($_REQUEST, 'finish_text', ''));
 
-	$adjust   = intval($_POST['adjust']);
-	$nofinish = intval($_POST['nofinish']);
+	$adjust   = intval(defaults($_POST, 'adjust', 0));
+	$nofinish = intval(defaults($_POST, 'nofinish', 0));
 
 	// The default setting for the `private` field in event_store() is false, so mirror that
 	$private_event = false;
 
+	$start  = DBA::NULL_DATETIME;
+	$finish = DBA::NULL_DATETIME;
+
 	if ($start_text) {
 		$start = $start_text;
 	}
-	else {
-		$start    = sprintf('%d-%d-%d %d:%d:0',$startyear,$startmonth,$startday,$starthour,$startminute);
-	}
-
-	if ($nofinish) {
-		$finish = '0000-00-00 00:00:00';
-	}
 
 	if ($finish_text) {
 		$finish = $finish_text;
 	}
-	else {
-		$finish    = sprintf('%d-%d-%d %d:%d:0',$finishyear,$finishmonth,$finishday,$finishhour,$finishminute);
-	}
 
 	if ($adjust) {
-		$start = datetime_convert(date_default_timezone_get(),'UTC',$start);
-		if (! $nofinish) {
-			$finish = datetime_convert(date_default_timezone_get(),'UTC',$finish);
+		$start = DateTimeFormat::convert($start, 'UTC', date_default_timezone_get());
+		if (!$nofinish) {
+			$finish = DateTimeFormat::convert($finish, 'UTC', date_default_timezone_get());
 		}
-	}
-	else {
-		$start = datetime_convert('UTC','UTC',$start);
-		if (! $nofinish) {
-			$finish = datetime_convert('UTC','UTC',$finish);
+	} else {
+		$start = DateTimeFormat::utc($start);
+		if (!$nofinish) {
+			$finish = DateTimeFormat::utc($finish);
 		}
 	}
 
@@ -87,63 +97,62 @@ function events_post(&$a) {
 	// and we'll waste a bunch of time responding to it. Time that
 	// could've been spent doing something else.
 
-	$summary  = escape_tags(trim($_POST['summary']));
-	$desc     = escape_tags(trim($_POST['desc']));
-	$location = escape_tags(trim($_POST['location']));
+	$summary  = Strings::escapeHtml(trim(defaults($_POST, 'summary', '')));
+	$desc     = Strings::escapeHtml(trim(defaults($_POST, 'desc', '')));
+	$location = Strings::escapeHtml(trim(defaults($_POST, 'location', '')));
 	$type     = 'event';
 
 	$action = ($event_id == '') ? 'new' : "event/" . $event_id;
-	$onerror_url = App::get_baseurl() . "/events/" . $action . "?summary=$summary&description=$desc&location=$location&start=$start_text&finish=$finish_text&adjust=$adjust&nofinish=$nofinish";
+	$onerror_path = "events/" . $action . "?summary=$summary&description=$desc&location=$location&start=$start_text&finish=$finish_text&adjust=$adjust&nofinish=$nofinish";
 
-	if (strcmp($finish,$start) < 0 && !$nofinish) {
-		notice( t('Event can not end before it has started.') . EOL);
+	if (strcmp($finish, $start) < 0 && !$nofinish) {
+		notice(L10n::t('Event can not end before it has started.') . EOL);
 		if (intval($_REQUEST['preview'])) {
-			echo( t('Event can not end before it has started.'));
+			echo L10n::t('Event can not end before it has started.');
 			killme();
 		}
-		goaway($onerror_url);
+		$a->internalRedirect($onerror_path);
 	}
 
-	if((! $summary) || (! $start)) {
-		notice( t('Event title and start time are required.') . EOL);
-		if(intval($_REQUEST['preview'])) {
-			echo( t('Event title and start time are required.'));
+	if (!$summary || ($start === DBA::NULL_DATETIME)) {
+		notice(L10n::t('Event title and start time are required.') . EOL);
+		if (intval($_REQUEST['preview'])) {
+			echo L10n::t('Event title and start time are required.');
 			killme();
 		}
-		goaway($onerror_url);
+		$a->internalRedirect($onerror_path);
 	}
 
-	$share = ((intval($_POST['share'])) ? intval($_POST['share']) : 0);
+	$share = intval(defaults($_POST, 'share', 0));
 
-	$c = q("select id from contact where uid = %d and self = 1 limit 1",
+	$c = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1",
 		intval(local_user())
 	);
-	if(count($c))
+
+	if (DBA::isResult($c)) {
 		$self = $c[0]['id'];
-	else
+	} else {
 		$self = 0;
+	}
 
 
-	if($share) {
-		$str_group_allow   = perms2str($_POST['group_allow']);
-		$str_contact_allow = perms2str($_POST['contact_allow']);
-		$str_group_deny    = perms2str($_POST['group_deny']);
-		$str_contact_deny  = perms2str($_POST['contact_deny']);
+	if ($share) {
+		$str_group_allow   = !empty($_POST['group_allow'])   ? perms2str($_POST['group_allow'])   : '';
+		$str_contact_allow = !empty($_POST['contact_allow']) ? perms2str($_POST['contact_allow']) : '';
+		$str_group_deny    = !empty($_POST['group_deny'])    ? perms2str($_POST['group_deny'])    : '';
+		$str_contact_deny  = !empty($_POST['contact_deny'])  ? perms2str($_POST['contact_deny'])  : '';
 
 		// Undo the pseudo-contact of self, since there are real contacts now
-		if( strpos($str_contact_allow, '<' . $self . '>') !== false )
-		{
+		if (strpos($str_contact_allow, '<' . $self . '>') !== false) {
 			$str_contact_allow = str_replace('<' . $self . '>', '', $str_contact_allow);
 		}
 		// Make sure to set the `private` field as true. This is necessary to
 		// have the posts show up correctly in Diaspora if an event is created
 		// as visible only to self at first, but then edited to display to others.
-		if( strlen($str_group_allow) or strlen($str_contact_allow) or strlen($str_group_deny) or strlen($str_contact_deny) )
-		{
+		if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) {
 			$private_event = true;
 		}
-	}
-	else {
+	} else {
 		// Note: do not set `private` field for self-only events. It will
 		// keep even you from seeing them!
 		$str_contact_allow = '<' . $self . '>';
@@ -151,114 +160,106 @@ function events_post(&$a) {
 	}
 
 
-	$datarray = array();
-	$datarray['guid'] = get_guid(32);
-	$datarray['start'] = $start;
-	$datarray['finish'] = $finish;
-	$datarray['summary'] = $summary;
-	$datarray['desc'] = $desc;
-	$datarray['location'] = $location;
-	$datarray['type'] = $type;
-	$datarray['adjust'] = $adjust;
-	$datarray['nofinish'] = $nofinish;
-	$datarray['uid'] = $uid;
-	$datarray['cid'] = $cid;
+	$datarray = [];
+	$datarray['start']     = $start;
+	$datarray['finish']    = $finish;
+	$datarray['summary']   = $summary;
+	$datarray['desc']      = $desc;
+	$datarray['location']  = $location;
+	$datarray['type']      = $type;
+	$datarray['adjust']    = $adjust;
+	$datarray['nofinish']  = $nofinish;
+	$datarray['uid']       = $uid;
+	$datarray['cid']       = $cid;
 	$datarray['allow_cid'] = $str_contact_allow;
 	$datarray['allow_gid'] = $str_group_allow;
-	$datarray['deny_cid'] = $str_contact_deny;
-	$datarray['deny_gid'] = $str_group_deny;
-	$datarray['private'] = (($private_event) ? 1 : 0);
-	$datarray['id'] = $event_id;
-	$datarray['created'] = $created;
-	$datarray['edited'] = $edited;
-
-	if(intval($_REQUEST['preview'])) {
-		$html = format_event_html($datarray);
+	$datarray['deny_cid']  = $str_contact_deny;
+	$datarray['deny_gid']  = $str_group_deny;
+	$datarray['private']   = $private_event;
+	$datarray['id']        = $event_id;
+
+	if (intval($_REQUEST['preview'])) {
+		$html = Event::getHTML($datarray);
 		echo $html;
-			killme();
+		killme();
 	}
 
-	$item_id = event_store($datarray);
+	$item_id = Event::store($datarray);
 
-	if(! $cid)
-		proc_run(PRIORITY_HIGH, "include/notifier.php", "event", $item_id);
+	if (!$cid) {
+		Worker::add(PRIORITY_HIGH, "Notifier", "event", $item_id);
+	}
 
-	goaway($_SESSION['return_url']);
+	$a->internalRedirect('events');
 }
 
-
-
-function events_content(&$a) {
-
-	if (! local_user()) {
-		notice( t('Permission denied.') . EOL);
-		return;
+function events_content(App $a)
+{
+	if (!local_user()) {
+		notice(L10n::t('Permission denied.') . EOL);
+		return Login::form();
 	}
 
 	if ($a->argc == 1) {
-		$_SESSION['return_url'] = App::get_baseurl() . '/' . $a->cmd;
+		$_SESSION['return_path'] = $a->cmd;
 	}
 
 	if (($a->argc > 2) && ($a->argv[1] === 'ignore') && intval($a->argv[2])) {
-		$r = q("update event set ignore = 1 where id = %d and uid = %d",
+		$r = q("UPDATE `event` SET `ignore` = 1 WHERE `id` = %d AND `uid` = %d",
 			intval($a->argv[2]),
 			intval(local_user())
 		);
 	}
 
 	if (($a->argc > 2) && ($a->argv[1] === 'unignore') && intval($a->argv[2])) {
-		$r = q("update event set ignore = 0 where id = %d and uid = %d",
+		$r = q("UPDATE `event` SET `ignore` = 0 WHERE `id` = %d AND `uid` = %d",
 			intval($a->argv[2]),
 			intval(local_user())
 		);
 	}
 
 	if ($a->theme_events_in_profile) {
-		nav_set_selected('home');
+		Nav::setSelected('home');
 	} else {
-		nav_set_selected('events');
-	}
-
-	$editselect = 'none';
-	if ( feature_enabled(local_user(), 'richtext') ) {
-		$editselect = 'textareas';
+		Nav::setSelected('events');
 	}
 
 	// get the translation strings for the callendar
-	$i18n = get_event_strings();
+	$i18n = Event::getStrings();
 
-	$htpl = get_markup_template('event_head.tpl');
-	$a->page['htmlhead'] .= replace_macros($htpl,array(
-		'$baseurl' => App::get_baseurl(),
+	$htpl = Renderer::getMarkupTemplate('event_head.tpl');
+	$a->page['htmlhead'] .= Renderer::replaceMacros($htpl, [
+		'$baseurl' => System::baseUrl(),
 		'$module_url' => '/events',
 		'$modparams' => 1,
 		'$i18n' => $i18n,
-		'$editselect' => $editselect
-	));
-
-	$etpl = get_markup_template('event_end.tpl');
-	$a->page['end'] .= replace_macros($etpl,array(
-		'$baseurl' => App::get_baseurl(),
-		'$editselect' => $editselect
-	));
+	]);
 
-	$o ="";
+	$o = '';
+	$tabs = '';
 	// tabs
-	if ($a->theme_events_in_profile)
-		$tabs = profile_tabs($a, True);
-
-
+	if ($a->theme_events_in_profile) {
+		$tabs = Profile::getTabs($a, true);
+	}
 
 	$mode = 'view';
 	$y = 0;
 	$m = 0;
-	$ignored = ((x($_REQUEST,'ignored')) ? intval($_REQUEST['ignored']) : 0);
+	$ignored = !empty($_REQUEST['ignored']) ? intval($_REQUEST['ignored']) : 0;
 
-	if($a->argc > 1) {
+	if ($a->argc > 1) {
 		if ($a->argc > 2 && $a->argv[1] == 'event') {
 			$mode = 'edit';
 			$event_id = intval($a->argv[2]);
 		}
+		if ($a->argc > 2 && $a->argv[1] == 'drop') {
+			$mode = 'drop';
+			$event_id = intval($a->argv[2]);
+		}
+		if ($a->argc > 2 && $a->argv[1] == 'copy') {
+			$mode = 'copy';
+			$event_id = intval($a->argv[2]);
+		}
 		if ($a->argv[1] === 'new') {
 			$mode = 'new';
 			$event_id = 0;
@@ -272,14 +273,12 @@ function events_content(&$a) {
 
 	// The view mode part is similiar to /mod/cal.php
 	if ($mode == 'view') {
-
-
-		$thisyear = datetime_convert('UTC',date_default_timezone_get(),'now','Y');
-		$thismonth = datetime_convert('UTC',date_default_timezone_get(),'now','m');
-		if (! $y) {
+		$thisyear  = DateTimeFormat::localNow('Y');
+		$thismonth = DateTimeFormat::localNow('m');
+		if (!$y) {
 			$y = intval($thisyear);
 		}
-		if (! $m) {
+		if (!$m) {
 			$m = intval($thismonth);
 		}
 
@@ -295,234 +294,292 @@ function events_content(&$a) {
 
 		$nextyear = $y;
 		$nextmonth = $m + 1;
-		if($nextmonth > 12) {
-				$nextmonth = 1;
+		if ($nextmonth > 12) {
+			$nextmonth = 1;
 			$nextyear ++;
 		}
 
 		$prevyear = $y;
-		if($m > 1)
+		if ($m > 1) {
 			$prevmonth = $m - 1;
-		else {
+		} else {
 			$prevmonth = 12;
 			$prevyear --;
 		}
 
-		$dim    = get_dim($y,$m);
-		$start  = sprintf('%d-%d-%d %d:%d:%d',$y,$m,1,0,0,0);
-		$finish = sprintf('%d-%d-%d %d:%d:%d',$y,$m,$dim,23,59,59);
-
+		$dim    = Temporal::getDaysInMonth($y, $m);
+		$start  = sprintf('%d-%d-%d %d:%d:%d', $y, $m, 1, 0, 0, 0);
+		$finish = sprintf('%d-%d-%d %d:%d:%d', $y, $m, $dim, 23, 59, 59);
 
-		if ($a->argv[1] === 'json'){
-			if (x($_GET,'start'))	$start = $_GET['start'];
-			if (x($_GET,'end'))	$finish = $_GET['end'];
+		if ($a->argc > 1 && $a->argv[1] === 'json') {
+			if (!empty($_GET['start'])) {
+				$start = $_GET['start'];
+			}
+			if (!empty($_GET['end'])) {
+				$finish = $_GET['end'];
+			}
 		}
 
-		$start  = datetime_convert('UTC','UTC',$start);
-		$finish = datetime_convert('UTC','UTC',$finish);
+		$start  = DateTimeFormat::utc($start);
+		$finish = DateTimeFormat::utc($finish);
 
-		$adjust_start = datetime_convert('UTC', date_default_timezone_get(), $start);
-		$adjust_finish = datetime_convert('UTC', date_default_timezone_get(), $finish);
+		$adjust_start  = DateTimeFormat::local($start);
+		$adjust_finish = DateTimeFormat::local($finish);
 
 		// put the event parametes in an array so we can better transmit them
-		$event_params = array(
-			'event_id' => (x($_GET,'id') ? $_GET["id"] : 0),
-			'start' => $start,
-			'finish' => $finish,
-			'adjust_start' => $adjust_start,
+		$event_params = [
+			'event_id'      => intval(defaults($_GET, 'id', 0)),
+			'start'         => $start,
+			'finish'        => $finish,
+			'adjust_start'  => $adjust_start,
 			'adjust_finish' => $adjust_finish,
-			'ignored' => $ignored,
-		);
+			'ignore'        => $ignored,
+		];
 
 		// get events by id or by date
-		if (x($_GET,'id')){
-			$r = event_by_id(local_user(), $event_params);
+		if ($event_params['event_id']) {
+			$r = Event::getListById(local_user(), $event_params['event_id']);
 		} else {
-			$r = events_by_date(local_user(), $event_params);
+			$r = Event::getListByDate(local_user(), $event_params);
 		}
 
-		$links = array();
+		$links = [];
 
-		if (dbm::is_result($r)) {
-			$r = sort_by_date($r);
+		if (DBA::isResult($r)) {
+			$r = Event::sortByDate($r);
 			foreach ($r as $rr) {
-				$j = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'j') : datetime_convert('UTC','UTC',$rr['start'],'j'));
-				if (! x($links,$j)) {
-					$links[$j] = App::get_baseurl() . '/' . $a->cmd . '#link-' . $j;
+				$j = $rr['adjust'] ? DateTimeFormat::local($rr['start'], 'j') : DateTimeFormat::utc($rr['start'], 'j');
+				if (empty($links[$j])) {
+					$links[$j] = System::baseUrl() . '/' . $a->cmd . '#link-' . $j;
 				}
 			}
 		}
 
-		$events=array();
+		$events = [];
 
 		// transform the event in a usable array
-		if (dbm::is_result($r)) {
-			$r = sort_by_date($r);
-			$events = process_events($r);
+		if (DBA::isResult($r)) {
+			$r = Event::sortByDate($r);
+			$events = Event::prepareListForTemplate($r);
 		}
 
-		if ($a->argv[1] === 'json'){
-			echo json_encode($events); killme();
+		if ($a->argc > 1 && $a->argv[1] === 'json') {
+			echo json_encode($events);
+			killme();
 		}
 
-		// links: array('href', 'text', 'extra css classes', 'title')
-		if (x($_GET,'id')){
-			$tpl =  get_markup_template("event.tpl");
+		if (!empty($_GET['id'])) {
+			$tpl = Renderer::getMarkupTemplate("event.tpl");
 		} else {
-//			if (get_config('experimentals','new_calendar')==1){
-				$tpl = get_markup_template("events_js.tpl");
-//			} else {
-//				$tpl = get_markup_template("events.tpl");
-//			}
+			$tpl = Renderer::getMarkupTemplate("events_js.tpl");
 		}
 
 		// Get rid of dashes in key names, Smarty3 can't handle them
-		foreach($events as $key => $event) {
-			$event_item = array();
-			foreach($event['item'] as $k => $v) {
-				$k = str_replace('-','_',$k);
+		foreach ($events as $key => $event) {
+			$event_item = [];
+			foreach ($event['item'] as $k => $v) {
+				$k = str_replace('-', '_', $k);
 				$event_item[$k] = $v;
 			}
 			$events[$key]['item'] = $event_item;
 		}
 
-		$o = replace_macros($tpl, array(
-			'$baseurl'	=> App::get_baseurl(),
-			'$tabs'		=> $tabs,
-			'$title'	=> t('Events'),
-			'$view'		=> t('View'),
-			'$new_event'	=> array(App::get_baseurl().'/events/new',t('Create New Event'),'',''),
-			'$previus'	=> array(App::get_baseurl()."/events/$prevyear/$prevmonth",t('Previous'),'',''),
-			'$next'		=> array(App::get_baseurl()."/events/$nextyear/$nextmonth",t('Next'),'',''),
-			'$calendar'	=> cal($y,$m,$links, ' eventcal'),
-
-			'$events'	=> $events,
-
-			"today" => t("today"),
-			"month" => t("month"),
-			"week" => t("week"),
-			"day" => t("day"),
-			"list" => t("list"),
-		));
-
-		if (x($_GET,'id')){ echo $o; killme(); }
+		$o = Renderer::replaceMacros($tpl, [
+			'$baseurl'   => System::baseUrl(),
+			'$tabs'      => $tabs,
+			'$title'     => L10n::t('Events'),
+			'$view'      => L10n::t('View'),
+			'$new_event' => [System::baseUrl() . '/events/new', L10n::t('Create New Event'), '', ''],
+			'$previous'  => [System::baseUrl() . '/events/$prevyear/$prevmonth', L10n::t('Previous'), '', ''],
+			'$next'      => [System::baseUrl() . '/events/$nextyear/$nextmonth', L10n::t('Next'), '', ''],
+			'$calendar'  => Temporal::getCalendarTable($y, $m, $links, ' eventcal'),
+
+			'$events'    => $events,
+
+			'$today' => L10n::t('today'),
+			'$month' => L10n::t('month'),
+			'$week'  => L10n::t('week'),
+			'$day'   => L10n::t('day'),
+			'$list'  => L10n::t('list'),
+		]);
+
+		if (!empty($_GET['id'])) {
+			echo $o;
+			killme();
+		}
 
 		return $o;
-
 	}
 
-	if($mode === 'edit' && $event_id) {
+	if (($mode === 'edit' || $mode === 'copy') && $event_id) {
 		$r = q("SELECT * FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 			intval($event_id),
 			intval(local_user())
 		);
-		if (dbm::is_result($r))
+		if (DBA::isResult($r)) {
 			$orig_event = $r[0];
+		}
 	}
 
 	// Passed parameters overrides anything found in the DB
-	if($mode === 'edit' || $mode === 'new') {
-		if(!x($orig_event)) $orig_event = array();
-		// In case of an error the browser is redirected back here, with these parameters filled in with the previous values
-		if(x($_REQUEST,'nofinish')) $orig_event['nofinish'] = $_REQUEST['nofinish'];
-		if(x($_REQUEST,'adjust')) $orig_event['adjust'] = $_REQUEST['adjust'];
-		if(x($_REQUEST,'summary')) $orig_event['summary'] = $_REQUEST['summary'];
-		if(x($_REQUEST,'description')) $orig_event['description'] = $_REQUEST['description'];
-		if(x($_REQUEST,'location')) $orig_event['location'] = $_REQUEST['location'];
-		if(x($_REQUEST,'start')) $orig_event['start'] = $_REQUEST['start'];
-		if(x($_REQUEST,'finish')) $orig_event['finish'] = $_REQUEST['finish'];
-	}
-
-	if($mode === 'edit' || $mode === 'new') {
-
-		$n_checked = ((x($orig_event) && $orig_event['nofinish']) ? ' checked="checked" ' : '');
-		$a_checked = ((x($orig_event) && $orig_event['adjust']) ? ' checked="checked" ' : '');
-		$t_orig = ((x($orig_event)) ? $orig_event['summary'] : '');
-		$d_orig = ((x($orig_event)) ? $orig_event['desc'] : '');
-		$l_orig = ((x($orig_event)) ? $orig_event['location'] : '');
-		$eid = ((x($orig_event)) ? $orig_event['id'] : 0);
-		$cid = ((x($orig_event)) ? $orig_event['cid'] : 0);
-		$uri = ((x($orig_event)) ? $orig_event['uri'] : '');
-
-
-		if(! x($orig_event))
-			$sh_checked = '';
-		else
-			$sh_checked = (($orig_event['allow_cid'] === '<' . local_user() . '>' && (! $orig_event['allow_gid']) && (! $orig_event['deny_cid']) && (! $orig_event['deny_gid'])) ? '' : ' checked="checked" ' );
+	if (in_array($mode, ['edit', 'new', 'copy'])) {
+		if (empty($orig_event)) {
+			$orig_event = [];
+		}
 
-		if($cid OR ($mode !== 'new'))
-			$sh_checked .= ' disabled="disabled" ';
+		// In case of an error the browser is redirected back here, with these parameters filled in with the previous values
+		if (!empty($_REQUEST['nofinish']))    {$orig_event['nofinish']    = $_REQUEST['nofinish'];}
+		if (!empty($_REQUEST['adjust']))      {$orig_event['adjust']      = $_REQUEST['adjust'];}
+		if (!empty($_REQUEST['summary']))     {$orig_event['summary']     = $_REQUEST['summary'];}
+		if (!empty($_REQUEST['description'])) {$orig_event['description'] = $_REQUEST['description'];}
+		if (!empty($_REQUEST['location']))    {$orig_event['location']    = $_REQUEST['location'];}
+		if (!empty($_REQUEST['start']))       {$orig_event['start']       = $_REQUEST['start'];}
+		if (!empty($_REQUEST['finish']))      {$orig_event['finish']      = $_REQUEST['finish'];}
+
+		$n_checked = (!empty($orig_event['nofinish']) ? ' checked="checked" ' : '');
+		$a_checked = (!empty($orig_event['adjust'])   ? ' checked="checked" ' : '');
+
+		$t_orig = !empty($orig_event) ? $orig_event['summary']  : '';
+		$d_orig = !empty($orig_event) ? $orig_event['desc']     : '';
+		$l_orig = !empty($orig_event) ? $orig_event['location'] : '';
+		$eid = !empty($orig_event) ? $orig_event['id']  : 0;
+		$cid = !empty($orig_event) ? $orig_event['cid'] : 0;
+		$uri = !empty($orig_event) ? $orig_event['uri'] : '';
+
+		$sh_disabled = '';
+		$sh_checked = '';
+
+		if (!empty($orig_event)
+			&& ($orig_event['allow_cid'] !== '<' . local_user() . '>'
+			|| $orig_event['allow_gid']
+			|| $orig_event['deny_cid']
+			|| $orig_event['deny_gid']))
+		{
+			$sh_checked = ' checked="checked" ';
+		}
 
+		if ($cid || $mode === 'edit') {
+			$sh_disabled = 'disabled="disabled"';
+		}
 
-		$sdt = ((x($orig_event)) ? $orig_event['start'] : 'now');
-		$fdt = ((x($orig_event)) ? $orig_event['finish'] : 'now');
+		$sdt = !empty($orig_event) ? $orig_event['start']  : 'now';
+		$fdt = !empty($orig_event) ? $orig_event['finish'] : 'now';
 
 		$tz = date_default_timezone_get();
-		if(x($orig_event))
-			$tz = (($orig_event['adjust']) ? date_default_timezone_get() : 'UTC');
-
-		$syear = datetime_convert('UTC', $tz, $sdt, 'Y');
-		$smonth = datetime_convert('UTC', $tz, $sdt, 'm');
-		$sday = datetime_convert('UTC', $tz, $sdt, 'd');
-
-		$shour = ((x($orig_event)) ? datetime_convert('UTC', $tz, $sdt, 'H') : 0);
-		$sminute = ((x($orig_event)) ? datetime_convert('UTC', $tz, $sdt, 'i') : 0);
+		if (!empty($orig_event)) {
+			$tz = ($orig_event['adjust'] ? date_default_timezone_get() : 'UTC');
+		}
 
-		$fyear = datetime_convert('UTC', $tz, $fdt, 'Y');
-		$fmonth = datetime_convert('UTC', $tz, $fdt, 'm');
-		$fday = datetime_convert('UTC', $tz, $fdt, 'd');
+		$syear  = DateTimeFormat::convert($sdt, $tz, 'UTC', 'Y');
+		$smonth = DateTimeFormat::convert($sdt, $tz, 'UTC', 'm');
+		$sday   = DateTimeFormat::convert($sdt, $tz, 'UTC', 'd');
 
-		$fhour = ((x($orig_event)) ? datetime_convert('UTC', $tz, $fdt, 'H') : 0);
-		$fminute = ((x($orig_event)) ? datetime_convert('UTC', $tz, $fdt, 'i') : 0);
+		$shour   = !empty($orig_event) ? DateTimeFormat::convert($sdt, $tz, 'UTC', 'H') : '00';
+		$sminute = !empty($orig_event) ? DateTimeFormat::convert($sdt, $tz, 'UTC', 'i') : '00';
 
-		$f = get_config('system','event_input_format');
-		if(! $f)
-			$f = 'ymd';
+		$fyear  = DateTimeFormat::convert($fdt, $tz, 'UTC', 'Y');
+		$fmonth = DateTimeFormat::convert($fdt, $tz, 'UTC', 'm');
+		$fday   = DateTimeFormat::convert($fdt, $tz, 'UTC', 'd');
 
-		require_once('include/acl_selectors.php');
+		$fhour   = !empty($orig_event) ? DateTimeFormat::convert($fdt, $tz, 'UTC', 'H') : '00';
+		$fminute = !empty($orig_event) ? DateTimeFormat::convert($fdt, $tz, 'UTC', 'i') : '00';
 
-		if ($mode === 'new')
-			$acl = (($cid) ? '' : populate_acl(((x($orig_event)) ? $orig_event : $a->user)));
+		$perms = ACL::getDefaultUserPermissions($orig_event);
 
-		$tpl = get_markup_template('event_form.tpl');
+		if (!$cid && in_array($mode, ['new', 'copy'])) {
+			$acl = ACL::getFullSelectorHTML($a->user, false, $orig_event);
+		} else {
+			$acl = '';
+		}
 
-		$o .= replace_macros($tpl,array(
-			'$post' => App::get_baseurl() . '/events',
-			'$eid' => $eid,
-			'$cid' => $cid,
-			'$uri' => $uri,
+		// If we copy an old event, we need to remove the ID and URI
+		// from the original event.
+		if ($mode === 'copy') {
+			$eid = 0;
+			$uri = '';
+		}
 
-			'$title' => t('Event details'),
-			'$desc' => t('Starting date and Title are required.'),
-			'$s_text' => t('Event Starts:') . ' <span class="required" title="' . t('Required') . '">*</span>',
-			'$s_dsel' => datetimesel($f,new DateTime(),DateTime::createFromFormat('Y',$syear+5),DateTime::createFromFormat('Y-m-d H:i',"$syear-$smonth-$sday $shour:$sminute"),t('Event Starts:'),'start_text',true,true,'','',true),
-			'$n_text' => t('Finish date/time is not known or not relevant'),
+		$tpl = Renderer::getMarkupTemplate('event_form.tpl');
+
+		$o .= Renderer::replaceMacros($tpl, [
+			'$post' => System::baseUrl() . '/events',
+			'$eid'  => $eid,
+			'$cid'  => $cid,
+			'$uri'  => $uri,
+
+			'$allow_cid' => json_encode($perms['allow_cid']),
+			'$allow_gid' => json_encode($perms['allow_gid']),
+			'$deny_cid'  => json_encode($perms['deny_cid']),
+			'$deny_gid'  => json_encode($perms['deny_gid']),
+
+			'$title' => L10n::t('Event details'),
+			'$desc' => L10n::t('Starting date and Title are required.'),
+			'$s_text' => L10n::t('Event Starts:') . ' <span class="required" title="' . L10n::t('Required') . '">*</span>',
+			'$s_dsel' => Temporal::getDateTimeField(
+				new DateTime(),
+				DateTime::createFromFormat('Y', $syear+5),
+				DateTime::createFromFormat('Y-m-d H:i', "$syear-$smonth-$sday $shour:$sminute"),
+				L10n::t('Event Starts:'),
+				'start_text',
+				true,
+				true,
+				'',
+				'',
+				true
+			),
+			'$n_text' => L10n::t('Finish date/time is not known or not relevant'),
 			'$n_checked' => $n_checked,
-			'$f_text' => t('Event Finishes:'),
-			'$f_dsel' => datetimesel($f,new DateTime(),DateTime::createFromFormat('Y',$fyear+5),DateTime::createFromFormat('Y-m-d H:i',"$fyear-$fmonth-$fday $fhour:$fminute"),t('Event Finishes:'),'finish_text',true,true,'start_text'),
-			'$a_text' => t('Adjust for viewer timezone'),
+			'$f_text' => L10n::t('Event Finishes:'),
+			'$f_dsel' => Temporal::getDateTimeField(
+				new DateTime(),
+				DateTime::createFromFormat('Y', $fyear+5),
+				DateTime::createFromFormat('Y-m-d H:i', "$fyear-$fmonth-$fday $fhour:$fminute"),
+				L10n::t('Event Finishes:'),
+				'finish_text',
+				true,
+				true,
+				'start_text'
+			),
+			'$a_text' => L10n::t('Adjust for viewer timezone'),
 			'$a_checked' => $a_checked,
-			'$d_text' => t('Description:'),
+			'$d_text' => L10n::t('Description:'),
 			'$d_orig' => $d_orig,
-			'$l_text' => t('Location:'),
+			'$l_text' => L10n::t('Location:'),
 			'$l_orig' => $l_orig,
-			'$t_text' => t('Title:') . ' <span class="required" title="' . t('Required') . '">*</span>',
+			'$t_text' => L10n::t('Title:') . ' <span class="required" title="' . L10n::t('Required') . '">*</span>',
 			'$t_orig' => $t_orig,
-			'$summary' => array('summary', t('Title:'), $t_orig, '', '*'),
-			'$sh_text' => t('Share this event'),
-			'$share' => array('share', t('Share this event'), $sh_checked, ''),
+			'$summary' => ['summary', L10n::t('Title:'), $t_orig, '', '*'],
+			'$sh_text' => L10n::t('Share this event'),
+			'$share' => ['share', L10n::t('Share this event'), $sh_checked, '', $sh_disabled],
 			'$sh_checked' => $sh_checked,
-			'$nofinish' => array('nofinish', t('Finish date/time is not known or not relevant'), $n_checked),
-			'$adjust' => array('adjust', t('Adjust for viewer timezone'), $a_checked),
-			'$preview' => t('Preview'),
+			'$nofinish' => ['nofinish', L10n::t('Finish date/time is not known or not relevant'), $n_checked],
+			'$adjust' => ['adjust', L10n::t('Adjust for viewer timezone'), $a_checked],
+			'$preview' => L10n::t('Preview'),
 			'$acl' => $acl,
-			'$submit' => t('Submit'),
-			'$basic' => t("Basic"),
-			'$advanced' => t("Advanced"),
-			'$permissions' => t('Permissions'),
-
-		));
+			'$submit' => L10n::t('Submit'),
+			'$basic' => L10n::t('Basic'),
+			'$advanced' => L10n::t('Advanced'),
+			'$permissions' => L10n::t('Permissions'),
+		]);
 
 		return $o;
 	}
+
+	// Remove an event from the calendar and its related items
+	if ($mode === 'drop' && $event_id) {
+		$ev = Event::getListById(local_user(), $event_id);
+
+		// Delete only real events (no birthdays)
+		if (DBA::isResult($ev) && $ev[0]['type'] == 'event') {
+			Item::deleteForUser(['id' => $ev[0]['itemid']], local_user());
+		}
+
+		if (Item::exists(['id' => $ev[0]['itemid']])) {
+			notice(L10n::t('Failed to remove event') . EOL);
+		} else {
+			info(L10n::t('Event removed') . EOL);
+		}
+
+		$a->internalRedirect('events');
+	}
 }