diff --git a/.editorconfig b/.editorconfig
index af6284b..5dfd8f5 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -11,8 +11,13 @@ tab_width = 4
 trim_trailing_whitespace = true
 insert_final_newline = true
 
+[*.php]
+indent_style = space
+indent_size = 4
+insert_final_newline = false
+
 # temporary. spaces will be used later.
-[*.{php,js}]
+[*.js]
 indent_style = tab
 tab_width = 4
 
@@ -20,9 +25,6 @@ tab_width = 4
 indent_style = space
 indent_size = 2
 
-[*.php]
-insert_final_newline = false
-
 [*.md]
 trim_trailing_whitespace = false
 insert_final_newline = false
diff --git a/buildzip.php b/buildzip.php
index 5d48d63..59b4713 100755
--- a/buildzip.php
+++ b/buildzip.php
@@ -4,7 +4,7 @@
 // PHP 5.4 is required
 
 if ( !isset($argv) || !isset($argv[1]) ) {
-	die("Usage: buildzip.php <path_to_repo> [-o source.zip] [-v VERSION]\n");
+    die("Usage: buildzip.php <path_to_repo> [-o source.zip] [-v VERSION]\n");
 }
 
 $repo = $argv[1];
@@ -15,28 +15,28 @@ $ver = 0;
 
 while ($arg = next($argv))
 {
-	if ($arg == '-o') {
-		$zipfile = next($argv);
-	}
-	elseif ($arg == '-v') {
-		$ver = next($argv);
-	}
+    if ($arg == '-o') {
+        $zipfile = next($argv);
+    }
+    elseif ($arg == '-v') {
+        $ver = next($argv);
+    }
 }
 
 deleteTreeIfDir($dir);
 $out = `git clone $repo $dir 2>&1`;
 if (!is_dir($dir)) {
-	die("Error while clone: $out\n");
+    die("Error while clone: $out\n");
 }
 print "> Repository was cloned to temp dir: $dir\n";
 
 #get current version number if not specified
 if (!$ver)
 {
-	chdir($dir);
-	$fh = fopen('version.txt', 'r') or die("Cant open version.txt\n");
-	$ver = trim(fgets($fh, 100));
-	fclose($fh);
+    chdir($dir);
+    $fh = fopen('version.txt', 'r') or die("Cant open version.txt\n");
+    $ver = trim(fgets($fh, 100));
+    fclose($fh);
 }
 chdir($dir. DIRECTORY_SEPARATOR. 'src');
 $rev = trim(`git show --format=format:%H --summary`);
@@ -62,9 +62,9 @@ unlink('./content/lang/en-rtl.json');
 # save only 2 languages
 $dh = opendir('./content/lang/') or die("Cant opendir lang\n");
 while (false !== ($f = readdir($dh))) {
-	if (!in_array($f, ['.', '..', '.htaccess', 'en.json', 'ru.json'])) {
-		unlink('./content/lang/'. $f);
-	}
+    if (!in_array($f, ['.', '..', '.htaccess', 'en.json', 'ru.json'])) {
+        unlink('./content/lang/'. $f);
+    }
 }
 closedir($dh);
  */
@@ -75,7 +75,7 @@ rename('src', 'mytinytodo') or die("Cant rename 'src'\n");
 
 `zip -9 -r mytinytodo.zip mytinytodo`;	#OS dep.!!!
 if (!file_exists('mytinytodo.zip')) {
-	die("Failed to pack files (no output zip file)\n");
+    die("Failed to pack files (no output zip file)\n");
 }
 
 $zipfile = str_replace('@VERSION', $ver, $zipfile);
@@ -83,7 +83,7 @@ $zipfile = str_replace('@REV', $rev, $zipfile);
 
 chdir($curdir);
 if ( ! rename("$dir/mytinytodo.zip", $zipfile) ) {
-	die("Failed to move mytinytodo.zip to $zipfile");
+    die("Failed to move mytinytodo.zip to $zipfile");
 }
 
 deleteTreeIfDir($dir);
@@ -98,23 +98,23 @@ echo("> Build is stored in $zipfile\n");
 
 function deleteTreeIfDir($dir)
 {
-	if ( is_dir($dir) ) {
-		switch (PHP_OS) {
-			case 'Darwin':
-				system("rm -rf $dir");
-				break;
-			case 'Windows':
-				system("rmdir /s /q $dir");
-				break;
-			default:
-				die("Unknown system ". PHP_OS. "\n");
-		}
-	}
+    if ( is_dir($dir) ) {
+        switch (PHP_OS) {
+            case 'Darwin':
+                system("rm -rf $dir");
+                break;
+            case 'Windows':
+                system("rmdir /s /q $dir");
+                break;
+            default:
+                die("Unknown system ". PHP_OS. "\n");
+        }
+    }
 }
 
 function replaceVer($filename, $ver)
 {
-	$s = @file_get_contents($filename) or die("Cant open $filename\n");
-	$s = str_replace('@VERSION', $ver, $s);
-	@file_put_contents($filename, $s) or die("Cant write $filename\n");
+    $s = @file_get_contents($filename) or die("Cant open $filename\n");
+    $s = str_replace('@VERSION', $ver, $s);
+    @file_put_contents($filename, $s) or die("Cant write $filename\n");
 }
\ No newline at end of file
diff --git a/src/ajax.php b/src/ajax.php
index 4fceba3..8a97563 100644
--- a/src/ajax.php
+++ b/src/ajax.php
@@ -1,546 +1,546 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2011,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2011,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 require_once('./init.php');
 require_once(MTTINC. 'markup.php');
 
 if (MTT_DEBUG) {
-	set_error_handler('myErrorHandler'); //catch Notices, Warnings
-	set_exception_handler('myExceptionHandler');
+    set_error_handler('myErrorHandler'); //catch Notices, Warnings
+    set_exception_handler('myExceptionHandler');
 }
 else {
-	ini_set('display_errors', '0');
+    ini_set('display_errors', '0');
 }
 
 $db = DBConnection::instance();
 
 if(isset($_GET['loadLists']))
 {
-	check_token();
-	$t = array();
-	$t['total'] = 0;
-	if (!is_logged()) $sqlWhere = 'WHERE published=1';
-	else {
-		$sqlWhere = '';
-		$t['list'][] = prepareAllTasksList(); // show alltasks lists only for authorized user
-		$t['total'] = 1;
-	}
-	$q = $db->dq("SELECT * FROM {$db->prefix}lists $sqlWhere ORDER BY ow ASC, id ASC");
-	while($r = $q->fetchAssoc())
-	{
-		$t['total']++;
-		$t['list'][] = prepareList($r);
-	}
-	jsonExit($t);
+    check_token();
+    $t = array();
+    $t['total'] = 0;
+    if (!is_logged()) $sqlWhere = 'WHERE published=1';
+    else {
+        $sqlWhere = '';
+        $t['list'][] = prepareAllTasksList(); // show alltasks lists only for authorized user
+        $t['total'] = 1;
+    }
+    $q = $db->dq("SELECT * FROM {$db->prefix}lists $sqlWhere ORDER BY ow ASC, id ASC");
+    while($r = $q->fetchAssoc())
+    {
+        $t['total']++;
+        $t['list'][] = prepareList($r);
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['loadTasks']))
 {
-	$listId = (int)_get('list');
-	check_read_access($listId);
+    $listId = (int)_get('list');
+    check_read_access($listId);
 
-	$sqlWhere = $inner = $sqlWhereListId = $sqlInnerWhereListId = '';
-	if ($listId == -1) {
-		$userLists = getUserListsSimple();
-		$sqlWhereListId = "{$db->prefix}todolist.list_id IN (". implode(',', array_keys($userLists)). ") ";
-		$sqlInnerWhereListId = "list_id IN (". implode(',', array_keys($userLists)). ") ";
-	}
-	else {
-		$sqlWhereListId = "{$db->prefix}todolist.list_id=". $listId;
-		$sqlInnerWhereListId = "list_id=$listId ";
-	}
-	if (_get('compl') == 0) {
-		$sqlWhere .= ' AND compl=0';
-	}
+    $sqlWhere = $inner = $sqlWhereListId = $sqlInnerWhereListId = '';
+    if ($listId == -1) {
+        $userLists = getUserListsSimple();
+        $sqlWhereListId = "{$db->prefix}todolist.list_id IN (". implode(',', array_keys($userLists)). ") ";
+        $sqlInnerWhereListId = "list_id IN (". implode(',', array_keys($userLists)). ") ";
+    }
+    else {
+        $sqlWhereListId = "{$db->prefix}todolist.list_id=". $listId;
+        $sqlInnerWhereListId = "list_id=$listId ";
+    }
+    if (_get('compl') == 0) {
+        $sqlWhere .= ' AND compl=0';
+    }
 
-	$tag = trim(_get('t'));
-	if($tag != '')
-	{
-		$at = explode(',', $tag);
-		$tagIds = array();
-		$tagExIds = array();
-		foreach($at as $i=>$atv) {
-			$atv = trim($atv);
-			if($atv == '' || $atv == '^') continue;
-			if(substr($atv,0,1) == '^') {
-				$tagExIds[] = getTagId(substr($atv,1));
-			} else {
-				$tagIds[] = getTagId($atv);
-			}
-		}
+    $tag = trim(_get('t'));
+    if($tag != '')
+    {
+        $at = explode(',', $tag);
+        $tagIds = array();
+        $tagExIds = array();
+        foreach($at as $i=>$atv) {
+            $atv = trim($atv);
+            if($atv == '' || $atv == '^') continue;
+            if(substr($atv,0,1) == '^') {
+                $tagExIds[] = getTagId(substr($atv,1));
+            } else {
+                $tagIds[] = getTagId($atv);
+            }
+        }
 
-		// Include tags: All
-		if (sizeof($tagIds) > 1) {
-			$inner .= "INNER JOIN (SELECT task_id, COUNT(tag_id) AS c FROM {$db->prefix}tag2task WHERE $sqlInnerWhereListId AND tag_id IN (".
-						implode(',',$tagIds). ") GROUP BY task_id) AS t2t ON id=t2t.task_id";
-			$sqlWhere .= " AND c=". sizeof($tagIds);
-		}
-		elseif ($tagIds) {
-			$inner .= "INNER JOIN {$db->prefix}tag2task ON id=task_id";
-			$sqlWhere .= " AND tag_id = {$tagIds[0]}";
-		}
+        // Include tags: All
+        if (sizeof($tagIds) > 1) {
+            $inner .= "INNER JOIN (SELECT task_id, COUNT(tag_id) AS c FROM {$db->prefix}tag2task WHERE $sqlInnerWhereListId AND tag_id IN (".
+                        implode(',',$tagIds). ") GROUP BY task_id) AS t2t ON id=t2t.task_id";
+            $sqlWhere .= " AND c=". sizeof($tagIds);
+        }
+        elseif ($tagIds) {
+            $inner .= "INNER JOIN {$db->prefix}tag2task ON id=task_id";
+            $sqlWhere .= " AND tag_id = {$tagIds[0]}";
+        }
 
-		// Exclude tags
-		if (sizeof($tagExIds) > 0) {
-			$sqlWhere .= " AND {$db->prefix}todolist.id NOT IN (SELECT DISTINCT task_id FROM {$db->prefix}tag2task WHERE $sqlInnerWhereListId AND tag_id IN (".
-						implode(',',$tagExIds). "))";
-		}
-		//no optimization for single exTag
-	}
+        // Exclude tags
+        if (sizeof($tagExIds) > 0) {
+            $sqlWhere .= " AND {$db->prefix}todolist.id NOT IN (SELECT DISTINCT task_id FROM {$db->prefix}tag2task WHERE $sqlInnerWhereListId AND tag_id IN (".
+                        implode(',',$tagExIds). "))";
+        }
+        //no optimization for single exTag
+    }
 
-	$s = trim(_get('s'));
-	if ($s != '') {
-		if (preg_match("|^#(\d+)$|", $s, $m)) $sqlWhere .= " AND {$db->prefix}todolist.id = ". (int)$m[1];
-		else $sqlWhere .= " AND (title LIKE ". $db->quoteForLike("%%%s%%",$s). " OR note LIKE ". $db->quoteForLike("%%%s%%",$s). ")";
-	}
+    $s = trim(_get('s'));
+    if ($s != '') {
+        if (preg_match("|^#(\d+)$|", $s, $m)) $sqlWhere .= " AND {$db->prefix}todolist.id = ". (int)$m[1];
+        else $sqlWhere .= " AND (title LIKE ". $db->quoteForLike("%%%s%%",$s). " OR note LIKE ". $db->quoteForLike("%%%s%%",$s). ")";
+    }
 
-	$sort = (int)_get('sort');
-	$sqlSort = "ORDER BY compl ASC, ";
-	if($sort == 1) $sqlSort .= "prio DESC, ddn ASC, duedate ASC, ow ASC";		// byPrio
-	elseif($sort == 101) $sqlSort .= "prio ASC, ddn DESC, duedate DESC, ow DESC";	// byPrio (reverse)
-	elseif($sort == 2) $sqlSort .= "ddn ASC, duedate ASC, prio DESC, ow ASC";	// byDueDate
-	elseif($sort == 102) $sqlSort .= "ddn DESC, duedate DESC, prio ASC, ow DESC";// byDueDate (reverse)
-	elseif($sort == 3) $sqlSort .= "d_created ASC, prio DESC, ow ASC";			// byDateCreated
-	elseif($sort == 103) $sqlSort .= "d_created DESC, prio ASC, ow DESC";		// byDateCreated (reverse)
-	elseif($sort == 4) $sqlSort .= "d_edited ASC, prio DESC, ow ASC";			// byDateModified
-	elseif($sort == 104) $sqlSort .= "d_edited DESC, prio ASC, ow DESC";		// byDateModified (reverse)
-	else $sqlSort .= "ow ASC";
+    $sort = (int)_get('sort');
+    $sqlSort = "ORDER BY compl ASC, ";
+    if($sort == 1) $sqlSort .= "prio DESC, ddn ASC, duedate ASC, ow ASC";		// byPrio
+    elseif($sort == 101) $sqlSort .= "prio ASC, ddn DESC, duedate DESC, ow DESC";	// byPrio (reverse)
+    elseif($sort == 2) $sqlSort .= "ddn ASC, duedate ASC, prio DESC, ow ASC";	// byDueDate
+    elseif($sort == 102) $sqlSort .= "ddn DESC, duedate DESC, prio ASC, ow DESC";// byDueDate (reverse)
+    elseif($sort == 3) $sqlSort .= "d_created ASC, prio DESC, ow ASC";			// byDateCreated
+    elseif($sort == 103) $sqlSort .= "d_created DESC, prio ASC, ow DESC";		// byDateCreated (reverse)
+    elseif($sort == 4) $sqlSort .= "d_edited ASC, prio DESC, ow ASC";			// byDateModified
+    elseif($sort == 104) $sqlSort .= "d_edited DESC, prio ASC, ow DESC";		// byDateModified (reverse)
+    else $sqlSort .= "ow ASC";
 
-	$t = array();
-	$t['total'] = 0;
-	$t['list'] = array();
-	$q = $db->dq("SELECT *, duedate IS NULL AS ddn FROM {$db->prefix}todolist $inner WHERE $sqlWhereListId $sqlWhere $sqlSort");
-	while($r = $q->fetchAssoc())
-	{
-		$t['total']++;
-		$t['list'][] = prepareTaskRow($r);
-	}
-	if(_get('setCompl') && have_write_access($listId)) {
-		$bitwise = (_get('compl') == 0) ? 'taskview & ~1' : 'taskview | 1';
-		$db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
-	}
-	jsonExit($t);
+    $t = array();
+    $t['total'] = 0;
+    $t['list'] = array();
+    $q = $db->dq("SELECT *, duedate IS NULL AS ddn FROM {$db->prefix}todolist $inner WHERE $sqlWhereListId $sqlWhere $sqlSort");
+    while($r = $q->fetchAssoc())
+    {
+        $t['total']++;
+        $t['list'][] = prepareTaskRow($r);
+    }
+    if(_get('setCompl') && have_write_access($listId)) {
+        $bitwise = (_get('compl') == 0) ? 'taskview & ~1' : 'taskview | 1';
+        $db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['newTask']))
 {
-	$listId = (int)_post('list');
-	check_write_access($listId);
-	$t = array();
-	$t['total'] = 0;
-	$title = trim(_post('title'));
-	$prio = 0;
-	$tags = '';
-	if(Config::get('smartsyntax') != 0)
-	{
-		$a = parse_smartsyntax($title);
-		if($a === false) {
-			jsonExit($t);
-		}
-		$title = $a['title'];
-		$prio = $a['prio'];
-		$tags = $a['tags'];
-	}
-	if($title == '') {
-		jsonExit($t);
-	}
-	if(Config::get('autotag')) $tags .= ','._post('tag');
-	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
-	$db->ex("BEGIN");
-	$db->dq("INSERT INTO {$db->prefix}todolist (uuid,list_id,title,d_created,d_edited,ow,prio) VALUES (?,?,?,?,?,?,?)",
-				array(generateUUID(), $listId, $title, time(), time(), $ow, $prio) );
-	$id = $db->lastInsertId();
-	if($tags != '')
-	{
-		$aTags = prepareTags($tags);
-		if($aTags) {
-			addTaskTags($id, $aTags['ids'], $listId);
-			$db->ex("UPDATE {$db->prefix}todolist SET tags=?,tags_ids=? WHERE id=$id", array(implode(',',$aTags['tags']), implode(',',$aTags['ids'])));
-		}
-	}
-	$db->ex("COMMIT");
-	$r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
-	$t['list'][] = prepareTaskRow($r);
-	$t['total'] = 1;
-	jsonExit($t);
+    $listId = (int)_post('list');
+    check_write_access($listId);
+    $t = array();
+    $t['total'] = 0;
+    $title = trim(_post('title'));
+    $prio = 0;
+    $tags = '';
+    if(Config::get('smartsyntax') != 0)
+    {
+        $a = parse_smartsyntax($title);
+        if($a === false) {
+            jsonExit($t);
+        }
+        $title = $a['title'];
+        $prio = $a['prio'];
+        $tags = $a['tags'];
+    }
+    if($title == '') {
+        jsonExit($t);
+    }
+    if(Config::get('autotag')) $tags .= ','._post('tag');
+    $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
+    $db->ex("BEGIN");
+    $db->dq("INSERT INTO {$db->prefix}todolist (uuid,list_id,title,d_created,d_edited,ow,prio) VALUES (?,?,?,?,?,?,?)",
+                array(generateUUID(), $listId, $title, time(), time(), $ow, $prio) );
+    $id = $db->lastInsertId();
+    if($tags != '')
+    {
+        $aTags = prepareTags($tags);
+        if($aTags) {
+            addTaskTags($id, $aTags['ids'], $listId);
+            $db->ex("UPDATE {$db->prefix}todolist SET tags=?,tags_ids=? WHERE id=$id", array(implode(',',$aTags['tags']), implode(',',$aTags['ids'])));
+        }
+    }
+    $db->ex("COMMIT");
+    $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
+    $t['list'][] = prepareTaskRow($r);
+    $t['total'] = 1;
+    jsonExit($t);
 }
 elseif(isset($_GET['fullNewTask']))
 {
-	$listId = (int)_post('list');
-	check_write_access($listId);
-	$title = trim(_post('title'));
-	$note = str_replace("\r\n", "\n", trim(_post('note')));
-	$prio = (int)_post('prio');
-	if($prio < -1) $prio = -1;
-	elseif($prio > 2) $prio = 2;
-	$duedate = parse_duedate(trim(_post('duedate')));
-	$t = array();
-	$t['total'] = 0;
-	if($title == '') {
-		jsonExit($t);
-	}
-	$tags = trim(_post('tags'));
-	if(Config::get('autotag')) $tags .= ','._post('tag');
-	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
-	$db->ex("BEGIN");
-	$db->dq("INSERT INTO {$db->prefix}todolist (uuid,list_id,title,d_created,d_edited,ow,prio,note,duedate) VALUES(?,?,?,?,?,?,?,?,?)",
-				array(generateUUID(), $listId, $title, time(), time(), $ow, $prio, $note, $duedate) );
-	$id = $db->lastInsertId();
-	if($tags != '')
-	{
-		$aTags = prepareTags($tags);
-		if($aTags) {
-			addTaskTags($id, $aTags['ids'], $listId);
-			$db->ex("UPDATE {$db->prefix}todolist SET tags=?,tags_ids=? WHERE id=$id", array(implode(',',$aTags['tags']), implode(',',$aTags['ids'])));
-		}
-	}
-	$db->ex("COMMIT");
-	$r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
-	$t['list'][] = prepareTaskRow($r);
-	$t['total'] = 1;
-	jsonExit($t);
+    $listId = (int)_post('list');
+    check_write_access($listId);
+    $title = trim(_post('title'));
+    $note = str_replace("\r\n", "\n", trim(_post('note')));
+    $prio = (int)_post('prio');
+    if($prio < -1) $prio = -1;
+    elseif($prio > 2) $prio = 2;
+    $duedate = parse_duedate(trim(_post('duedate')));
+    $t = array();
+    $t['total'] = 0;
+    if($title == '') {
+        jsonExit($t);
+    }
+    $tags = trim(_post('tags'));
+    if(Config::get('autotag')) $tags .= ','._post('tag');
+    $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
+    $db->ex("BEGIN");
+    $db->dq("INSERT INTO {$db->prefix}todolist (uuid,list_id,title,d_created,d_edited,ow,prio,note,duedate) VALUES(?,?,?,?,?,?,?,?,?)",
+                array(generateUUID(), $listId, $title, time(), time(), $ow, $prio, $note, $duedate) );
+    $id = $db->lastInsertId();
+    if($tags != '')
+    {
+        $aTags = prepareTags($tags);
+        if($aTags) {
+            addTaskTags($id, $aTags['ids'], $listId);
+            $db->ex("UPDATE {$db->prefix}todolist SET tags=?,tags_ids=? WHERE id=$id", array(implode(',',$aTags['tags']), implode(',',$aTags['ids'])));
+        }
+    }
+    $db->ex("COMMIT");
+    $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
+    $t['list'][] = prepareTaskRow($r);
+    $t['total'] = 1;
+    jsonExit($t);
 }
 elseif(isset($_GET['deleteTask']))
 {
-	$id = (int)_post('id');
-	$deleted = deleteTask($id);
-	$t = array();
-	$t['total'] = $deleted;
-	$t['list'][] = array('id'=>$id);
-	jsonExit($t);
+    $id = (int)_post('id');
+    $deleted = deleteTask($id);
+    $t = array();
+    $t['total'] = $deleted;
+    $t['list'][] = array('id'=>$id);
+    jsonExit($t);
 }
 elseif(isset($_GET['completeTask']))
 {
-	check_write_access();
-	$id = (int)_post('id');
-	$compl = _post('compl') ? 1 : 0;
-	$listId = (int)$db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=$id");
-	if($compl) 	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=1");
-	else $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
-	$dateCompleted = $compl ? time() : 0;
-	$db->dq("UPDATE {$db->prefix}todolist SET compl=$compl,ow=$ow,d_completed=?,d_edited=? WHERE id=$id",
-				array($dateCompleted, time()) );
-	$t = array();
-	$t['total'] = 1;
-	$r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
-	$t['list'][] = prepareTaskRow($r);
-	jsonExit($t);
+    check_write_access();
+    $id = (int)_post('id');
+    $compl = _post('compl') ? 1 : 0;
+    $listId = (int)$db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=$id");
+    if($compl) 	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=1");
+    else $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=$listId AND compl=0");
+    $dateCompleted = $compl ? time() : 0;
+    $db->dq("UPDATE {$db->prefix}todolist SET compl=$compl,ow=$ow,d_completed=?,d_edited=? WHERE id=$id",
+                array($dateCompleted, time()) );
+    $t = array();
+    $t['total'] = 1;
+    $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
+    $t['list'][] = prepareTaskRow($r);
+    jsonExit($t);
 }
 elseif(isset($_GET['editNote']))
 {
-	check_write_access();
-	$id = (int)_post('id');
-	$note = str_replace("\r\n", "\n", trim(_post('note')));
-	$db->dq("UPDATE {$db->prefix}todolist SET note=?,d_edited=? WHERE id=$id", array($note, time()) );
-	$t = array();
-	$t['total'] = 1;
-	$t['list'][] = array('id'=>$id, 'note'=> noteMarkup($note), 'noteText'=>(string)$note);
-	jsonExit($t);
+    check_write_access();
+    $id = (int)_post('id');
+    $note = str_replace("\r\n", "\n", trim(_post('note')));
+    $db->dq("UPDATE {$db->prefix}todolist SET note=?,d_edited=? WHERE id=$id", array($note, time()) );
+    $t = array();
+    $t['total'] = 1;
+    $t['list'][] = array('id'=>$id, 'note'=> noteMarkup($note), 'noteText'=>(string)$note);
+    jsonExit($t);
 }
 elseif(isset($_GET['editTask']))
 {
-	check_write_access();
-	$id = (int)_post('id');
-	$title = trim(_post('title'));
-	$note = str_replace("\r\n", "\n", trim(_post('note')));
-	$prio = (int)_post('prio');
-	if($prio < -1) $prio = -1;
-	elseif($prio > 2) $prio = 2;
-	$duedate = parse_duedate(trim(_post('duedate')));
-	$t = array();
-	$t['total'] = 0;
-	if($title == '') {
-		jsonExit($t);
-	}
-	$listId = $db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=$id");
-	$tags = trim(_post('tags'));
-	$db->ex("BEGIN");
-	$db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id=$id");
-	$aTags = prepareTags($tags);
-	if($aTags) {
-		$tags = implode(',', $aTags['tags']);
-		$tags_ids = implode(',',$aTags['ids']);
-		addTaskTags($id, $aTags['ids'], $listId);
-	}
-	$db->dq("UPDATE {$db->prefix}todolist SET title=?,note=?,prio=?,tags=?,tags_ids=?,duedate=?,d_edited=? WHERE id=$id",
-			array($title, $note, $prio, $tags, $tags_ids, $duedate, time()) );
-	$db->ex("COMMIT");
-	$r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
-	if($r) {
-		$t['list'][] = prepareTaskRow($r);
-		$t['total'] = 1;
-	}
-	jsonExit($t);
+    check_write_access();
+    $id = (int)_post('id');
+    $title = trim(_post('title'));
+    $note = str_replace("\r\n", "\n", trim(_post('note')));
+    $prio = (int)_post('prio');
+    if($prio < -1) $prio = -1;
+    elseif($prio > 2) $prio = 2;
+    $duedate = parse_duedate(trim(_post('duedate')));
+    $t = array();
+    $t['total'] = 0;
+    if($title == '') {
+        jsonExit($t);
+    }
+    $listId = $db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=$id");
+    $tags = trim(_post('tags'));
+    $db->ex("BEGIN");
+    $db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id=$id");
+    $aTags = prepareTags($tags);
+    if($aTags) {
+        $tags = implode(',', $aTags['tags']);
+        $tags_ids = implode(',',$aTags['ids']);
+        addTaskTags($id, $aTags['ids'], $listId);
+    }
+    $db->dq("UPDATE {$db->prefix}todolist SET title=?,note=?,prio=?,tags=?,tags_ids=?,duedate=?,d_edited=? WHERE id=$id",
+            array($title, $note, $prio, $tags, $tags_ids, $duedate, time()) );
+    $db->ex("COMMIT");
+    $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id");
+    if($r) {
+        $t['list'][] = prepareTaskRow($r);
+        $t['total'] = 1;
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['changeOrder']))
 {
-	check_write_access();
-	$s = _post('order');
-	parse_str($s, $order);
-	$t = array();
-	$t['total'] = 0;
-	if($order)
-	{
-		$ad = array();
-		foreach($order as $id=>$diff) {
-			$ad[(int)$diff][] = (int)$id;
-		}
-		$db->ex("BEGIN");
-		foreach($ad as $diff=>$ids) {
-			if($diff >=0) $set = "ow=ow+".$diff;
-			else $set = "ow=ow-".abs($diff);
-			$db->dq("UPDATE {$db->prefix}todolist SET $set,d_edited=? WHERE id IN (".implode(',',$ids).")", array(time()) );
-		}
-		$db->ex("COMMIT");
-		$t['total'] = 1;
-	}
-	jsonExit($t);
+    check_write_access();
+    $s = _post('order');
+    parse_str($s, $order);
+    $t = array();
+    $t['total'] = 0;
+    if($order)
+    {
+        $ad = array();
+        foreach($order as $id=>$diff) {
+            $ad[(int)$diff][] = (int)$id;
+        }
+        $db->ex("BEGIN");
+        foreach($ad as $diff=>$ids) {
+            if($diff >=0) $set = "ow=ow+".$diff;
+            else $set = "ow=ow-".abs($diff);
+            $db->dq("UPDATE {$db->prefix}todolist SET $set,d_edited=? WHERE id IN (".implode(',',$ids).")", array(time()) );
+        }
+        $db->ex("COMMIT");
+        $t['total'] = 1;
+    }
+    jsonExit($t);
 }
 elseif(isset($_POST['login']))
 {
-	$t = array('logged' => 0);
-	if (!need_auth()) {
-		$t['disabled'] = 1;
-		jsonExit($t);
-	}
-	if ( isPasswordEqualsToHash(_post('password'), Config::get('password')) ) {
-		$t['logged'] = 1;
-		session_regenerate_id(1);
-		$_SESSION['logged'] = 1;
-		$_SESSION['token'] = generateUUID();
-		$_SESSION['sign'] = idSignature(session_id(), Config::get('password'), defined('MTT_SALT') ? MTT_SALT : '');
-	}
-	jsonExit($t);
+    $t = array('logged' => 0);
+    if (!need_auth()) {
+        $t['disabled'] = 1;
+        jsonExit($t);
+    }
+    if ( isPasswordEqualsToHash(_post('password'), Config::get('password')) ) {
+        $t['logged'] = 1;
+        session_regenerate_id(1);
+        $_SESSION['logged'] = 1;
+        $_SESSION['token'] = generateUUID();
+        $_SESSION['sign'] = idSignature(session_id(), Config::get('password'), defined('MTT_SALT') ? MTT_SALT : '');
+    }
+    jsonExit($t);
 }
 elseif(isset($_POST['logout']))
 {
-	check_token();
-	unset($_SESSION['logged']);
-	unset($_SESSION['token']);
-	unset($_SESSION['sign']);
-	$t = array('logged' => 0);
-	jsonExit($t);
+    check_token();
+    unset($_SESSION['logged']);
+    unset($_SESSION['token']);
+    unset($_SESSION['sign']);
+    $t = array('logged' => 0);
+    jsonExit($t);
 }
 elseif(isset($_GET['suggestTags']))
 {
-	$listId = (int)_get('list');
-	check_read_access($listId);
-	$begin = trim(_get('q'));
-	$limit = 8;
-	$q = $db->dq("SELECT name,id FROM {$db->prefix}tags INNER JOIN {$db->prefix}tag2task ON id=tag_id WHERE list_id=$listId AND name LIKE ".
-					$db->quoteForLike('%s%%',$begin) ." GROUP BY tag_id ORDER BY name LIMIT $limit");
-	$t = array();
-	while($r = $q->fetchRow()) {
-		$t[] = $r[0];
-	}
-	jsonExit($t);
+    $listId = (int)_get('list');
+    check_read_access($listId);
+    $begin = trim(_get('q'));
+    $limit = 8;
+    $q = $db->dq("SELECT name,id FROM {$db->prefix}tags INNER JOIN {$db->prefix}tag2task ON id=tag_id WHERE list_id=$listId AND name LIKE ".
+                    $db->quoteForLike('%s%%',$begin) ." GROUP BY tag_id ORDER BY name LIMIT $limit");
+    $t = array();
+    while($r = $q->fetchRow()) {
+        $t[] = $r[0];
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['setPrio']))
 {
-	check_write_access();
-	$id = (int)$_GET['setPrio'];
-	$prio = (int)_get('prio');
-	if($prio < -1) $prio = -1;
-	elseif($prio > 2) $prio = 2;
-	$db->ex("UPDATE {$db->prefix}todolist SET prio=$prio,d_edited=? WHERE id=$id", array(time()) );
-	$t = array();
-	$t['total'] = 1;
-	$t['list'][] = array('id'=>$id, 'prio'=>$prio);
-	jsonExit($t);
+    check_write_access();
+    $id = (int)$_GET['setPrio'];
+    $prio = (int)_get('prio');
+    if($prio < -1) $prio = -1;
+    elseif($prio > 2) $prio = 2;
+    $db->ex("UPDATE {$db->prefix}todolist SET prio=$prio,d_edited=? WHERE id=$id", array(time()) );
+    $t = array();
+    $t['total'] = 1;
+    $t['list'][] = array('id'=>$id, 'prio'=>$prio);
+    jsonExit($t);
 }
 elseif(isset($_GET['tagCloud']))
 {
-	$listId = (int)_get('list');
-	check_read_access($listId);
+    $listId = (int)_get('list');
+    check_read_access($listId);
 
-	$q = $db->dq("SELECT name,tag_id,COUNT(tag_id) AS tags_count FROM {$db->prefix}tag2task INNER JOIN {$db->prefix}tags ON tag_id=id ".
-						"WHERE list_id=$listId GROUP BY (tag_id) ORDER BY tags_count ASC");
-	$at = array();
-	$ac = array();
-	while($r = $q->fetchAssoc()) {
-		$at[] = array('name'=>$r['name'], 'id'=>$r['tag_id']);
-		$ac[] = $r['tags_count'];
-	}
+    $q = $db->dq("SELECT name,tag_id,COUNT(tag_id) AS tags_count FROM {$db->prefix}tag2task INNER JOIN {$db->prefix}tags ON tag_id=id ".
+                        "WHERE list_id=$listId GROUP BY (tag_id) ORDER BY tags_count ASC");
+    $at = array();
+    $ac = array();
+    while($r = $q->fetchAssoc()) {
+        $at[] = array('name'=>$r['name'], 'id'=>$r['tag_id']);
+        $ac[] = $r['tags_count'];
+    }
 
-	$t = array();
-	$t['total'] = 0;
-	$count = sizeof($at);
-	if(!$count) {
-		jsonExit($t);
-	}
+    $t = array();
+    $t['total'] = 0;
+    $count = sizeof($at);
+    if(!$count) {
+        jsonExit($t);
+    }
 
-	$qmax = max($ac);
-	$qmin = min($ac);
-	if($count >= 10) $grades = 10;
-	else $grades = $count;
-	$step = ($qmax - $qmin)/$grades;
-	foreach($at as $i=>$tag)
-	{
-		$t['cloud'][] = array('tag'=>htmlarray($tag['name']), 'id'=>(int)$tag['id'], 'w'=> tag_size($qmin,$ac[$i],$step) );
-	}
-	$t['total'] = $count;
-	jsonExit($t);
+    $qmax = max($ac);
+    $qmin = min($ac);
+    if($count >= 10) $grades = 10;
+    else $grades = $count;
+    $step = ($qmax - $qmin)/$grades;
+    foreach($at as $i=>$tag)
+    {
+        $t['cloud'][] = array('tag'=>htmlarray($tag['name']), 'id'=>(int)$tag['id'], 'w'=> tag_size($qmin,$ac[$i],$step) );
+    }
+    $t['total'] = $count;
+    jsonExit($t);
 }
 elseif(isset($_GET['addList']))
 {
-	check_write_access();
-	$t = array();
-	$t['total'] = 0;
-	$name = str_replace( array('"',"'",'<','>','&'), '', trim(_post('name')) );
-	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}lists");
-	$db->dq("INSERT INTO {$db->prefix}lists (uuid,name,ow,d_created,d_edited,taskview) VALUES (?,?,?,?,?,?)",
-				array(generateUUID(), $name, $ow, time(), time(), 1) );
-	$id = $db->lastInsertId();
-	$t['total'] = 1;
-	$r = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$id");
-	$t['list'][] = prepareList($r);
-	jsonExit($t);
+    check_write_access();
+    $t = array();
+    $t['total'] = 0;
+    $name = str_replace( array('"',"'",'<','>','&'), '', trim(_post('name')) );
+    $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}lists");
+    $db->dq("INSERT INTO {$db->prefix}lists (uuid,name,ow,d_created,d_edited,taskview) VALUES (?,?,?,?,?,?)",
+                array(generateUUID(), $name, $ow, time(), time(), 1) );
+    $id = $db->lastInsertId();
+    $t['total'] = 1;
+    $r = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$id");
+    $t['list'][] = prepareList($r);
+    jsonExit($t);
 }
 elseif(isset($_GET['renameList']))
 {
-	check_write_access();
-	$t = array();
-	$t['total'] = 0;
-	$id = (int)_post('list');
-	$name = str_replace(array('"',"'",'<','>','&'),array('','','','',''),trim(_post('name')));
-	$db->dq("UPDATE {$db->prefix}lists SET name=?,d_edited=? WHERE id=$id", array($name, time()) );
-	$t['total'] = $db->affected();
-	$r = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$id");
-	$t['list'][] = prepareList($r);
-	jsonExit($t);
+    check_write_access();
+    $t = array();
+    $t['total'] = 0;
+    $id = (int)_post('list');
+    $name = str_replace(array('"',"'",'<','>','&'),array('','','','',''),trim(_post('name')));
+    $db->dq("UPDATE {$db->prefix}lists SET name=?,d_edited=? WHERE id=$id", array($name, time()) );
+    $t['total'] = $db->affected();
+    $r = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$id");
+    $t['list'][] = prepareList($r);
+    jsonExit($t);
 }
 elseif(isset($_GET['deleteList']))
 {
-	check_write_access();
-	$t = array();
-	$t['total'] = 0;
-	$id = (int)_post('list');
-	$db->ex("BEGIN");
-	$db->ex("DELETE FROM {$db->prefix}lists WHERE id=$id");
-	$t['total'] = $db->affected();
-	if($t['total']) {
-		$db->ex("DELETE FROM {$db->prefix}tag2task WHERE list_id=$id");
-		$db->ex("DELETE FROM {$db->prefix}todolist WHERE list_id=$id");
-	}
-	$db->ex("COMMIT");
-	jsonExit($t);
+    check_write_access();
+    $t = array();
+    $t['total'] = 0;
+    $id = (int)_post('list');
+    $db->ex("BEGIN");
+    $db->ex("DELETE FROM {$db->prefix}lists WHERE id=$id");
+    $t['total'] = $db->affected();
+    if($t['total']) {
+        $db->ex("DELETE FROM {$db->prefix}tag2task WHERE list_id=$id");
+        $db->ex("DELETE FROM {$db->prefix}todolist WHERE list_id=$id");
+    }
+    $db->ex("COMMIT");
+    jsonExit($t);
 }
 elseif(isset($_GET['setSort']))
 {
-	check_write_access();
-	$listId = (int)_post('list');
-	$sort = (int)_post('sort');
-	if($sort < 0 || $sort > 104) $sort = 0;
-	elseif($sort < 101 && $sort > 4) $sort = 0;
-	if ($listId == -1) {
-		$opts = Config::requestDomain('alltasks.json');
-		$opts['sort'] = $sort;
-		Config::saveDomain('alltasks.json', $opts);
-	}
-	else {
-		$db->ex("UPDATE {$db->prefix}lists SET sorting=$sort,d_edited=? WHERE id=$listId", array(time()));
-	}
-	jsonExit(array('total'=>1));
+    check_write_access();
+    $listId = (int)_post('list');
+    $sort = (int)_post('sort');
+    if($sort < 0 || $sort > 104) $sort = 0;
+    elseif($sort < 101 && $sort > 4) $sort = 0;
+    if ($listId == -1) {
+        $opts = Config::requestDomain('alltasks.json');
+        $opts['sort'] = $sort;
+        Config::saveDomain('alltasks.json', $opts);
+    }
+    else {
+        $db->ex("UPDATE {$db->prefix}lists SET sorting=$sort,d_edited=? WHERE id=$listId", array(time()));
+    }
+    jsonExit(array('total'=>1));
 }
 elseif(isset($_GET['publishList']))
 {
-	check_write_access();
-	$listId = (int)_post('list');
-	$publish = (int)_post('publish');
-	$db->ex("UPDATE {$db->prefix}lists SET published=?,d_created=? WHERE id=$listId", array($publish ? 1 : 0, time()));
-	jsonExit(array('total'=>1));
+    check_write_access();
+    $listId = (int)_post('list');
+    $publish = (int)_post('publish');
+    $db->ex("UPDATE {$db->prefix}lists SET published=?,d_created=? WHERE id=$listId", array($publish ? 1 : 0, time()));
+    jsonExit(array('total'=>1));
 }
 elseif(isset($_GET['moveTask']))
 {
-	check_write_access();
-	$id = (int)_post('id');
-	$fromId = (int)_post('from');
-	$toId = (int)_post('to');
-	$result = moveTask($id, $toId);
-	$t = array('total' => $result ? 1 : 0);
-	if($fromId == -1 && $result && $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id")) {
-		$t['list'][] = prepareTaskRow($r);
-	}
-	jsonExit($t);
+    check_write_access();
+    $id = (int)_post('id');
+    $fromId = (int)_post('from');
+    $toId = (int)_post('to');
+    $result = moveTask($id, $toId);
+    $t = array('total' => $result ? 1 : 0);
+    if($fromId == -1 && $result && $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=$id")) {
+        $t['list'][] = prepareTaskRow($r);
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['changeListOrder']))
 {
-	check_write_access();
-	$order = (array)_post('order');
-	$t = array();
-	$t['total'] = 0;
-	if($order)
-	{
-		$a = array();
-		$setCase = '';
-		foreach($order as $ow=>$id) {
-			$id = (int)$id;
-			$a[] = $id;
-			$setCase .= "WHEN id=$id THEN $ow\n";
-		}
-		$ids = implode(',', $a);
-		$db->dq("UPDATE {$db->prefix}lists SET d_edited=?, ow = CASE\n $setCase END WHERE id IN ($ids)",
-					array(time()) );
-		$t['total'] = 1;
-	}
-	jsonExit($t);
+    check_write_access();
+    $order = (array)_post('order');
+    $t = array();
+    $t['total'] = 0;
+    if($order)
+    {
+        $a = array();
+        $setCase = '';
+        foreach($order as $ow=>$id) {
+            $id = (int)$id;
+            $a[] = $id;
+            $setCase .= "WHEN id=$id THEN $ow\n";
+        }
+        $ids = implode(',', $a);
+        $db->dq("UPDATE {$db->prefix}lists SET d_edited=?, ow = CASE\n $setCase END WHERE id IN ($ids)",
+                    array(time()) );
+        $t['total'] = 1;
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['parseTaskStr']))
 {
-	check_write_access();
-	$t = array(
-		'title' => trim(_post('title')),
-		'prio' => 0,
-		'tags' => ''
-	);
-	if(Config::get('smartsyntax') != 0 && (false !== $a = parse_smartsyntax($t['title'])))
-	{
-		$t['title'] = $a['title'];
-		$t['prio'] = $a['prio'];
-		$t['tags'] = $a['tags'];
-	}
-	jsonExit($t);
+    check_write_access();
+    $t = array(
+        'title' => trim(_post('title')),
+        'prio' => 0,
+        'tags' => ''
+    );
+    if(Config::get('smartsyntax') != 0 && (false !== $a = parse_smartsyntax($t['title'])))
+    {
+        $t['title'] = $a['title'];
+        $t['prio'] = $a['prio'];
+        $t['tags'] = $a['tags'];
+    }
+    jsonExit($t);
 }
 elseif(isset($_GET['clearCompletedInList']))
 {
-	check_write_access();
-	$t = array();
-	$t['total'] = 0;
-	$listId = (int)_post('list');
-	$db->ex("BEGIN");
-	$db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id IN (SELECT id FROM {$db->prefix}todolist WHERE list_id=? and compl=1)", array($listId));
-	$db->ex("DELETE FROM {$db->prefix}todolist WHERE list_id=$listId and compl=1");
-	$t['total'] = $db->affected();
-	$db->ex("COMMIT");
-	jsonExit($t);
+    check_write_access();
+    $t = array();
+    $t['total'] = 0;
+    $listId = (int)_post('list');
+    $db->ex("BEGIN");
+    $db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id IN (SELECT id FROM {$db->prefix}todolist WHERE list_id=? and compl=1)", array($listId));
+    $db->ex("DELETE FROM {$db->prefix}todolist WHERE list_id=$listId and compl=1");
+    $t['total'] = $db->affected();
+    $db->ex("COMMIT");
+    jsonExit($t);
 }
 elseif(isset($_GET['setShowNotesInList']))
 {
-	check_write_access();
-	$listId = (int)_post('list');
-	$flag = (int)_post('shownotes');
-	$bitwise = ($flag == 0) ? 'taskview & ~2' : 'taskview | 2';
-	$db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
-	jsonExit(array('total'=>1));
+    check_write_access();
+    $listId = (int)_post('list');
+    $flag = (int)_post('shownotes');
+    $bitwise = ($flag == 0) ? 'taskview & ~2' : 'taskview | 2';
+    $db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
+    jsonExit(array('total'=>1));
 }
 elseif(isset($_GET['setHideList']))
 {
-	check_write_access();
-	$listId = (int)_post('list');
-	$flag = (int)_post('hide') ? 1 : 0;
-	if ($listId == -1) {
-		$opts = Config::requestDomain('alltasks.json');
-		$opts['hidden'] = $flag;
-		Config::saveDomain('alltasks.json', $opts);
-	}
-	else {
-		$bitwise = ($flag == 0) ? 'taskview & ~4' : 'taskview | 4';
-		$db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
-	}
-	jsonExit(array('total'=>1));
+    check_write_access();
+    $listId = (int)_post('list');
+    $flag = (int)_post('hide') ? 1 : 0;
+    if ($listId == -1) {
+        $opts = Config::requestDomain('alltasks.json');
+        $opts['hidden'] = $flag;
+        Config::saveDomain('alltasks.json', $opts);
+    }
+    else {
+        $bitwise = ($flag == 0) ? 'taskview & ~4' : 'taskview | 4';
+        $db->dq("UPDATE {$db->prefix}lists SET taskview=$bitwise WHERE id=$listId");
+    }
+    jsonExit(array('total'=>1));
 }
 
 
@@ -548,407 +548,407 @@ elseif(isset($_GET['setHideList']))
 
 function prepareTaskRow($r)
 {
-	$lang = Lang::instance();
-	$dueA = prepare_duedate($r['duedate']);
-	$formatCreatedInline = $formatCompletedInline = Config::get('dateformatshort');
-	if(date('Y') != date('Y',$r['d_created'])) $formatCreatedInline = Config::get('dateformat2');
-	if($r['d_completed'] && date('Y') != date('Y',$r['d_completed'])) $formatCompletedInline = Config::get('dateformat2');
+    $lang = Lang::instance();
+    $dueA = prepare_duedate($r['duedate']);
+    $formatCreatedInline = $formatCompletedInline = Config::get('dateformatshort');
+    if(date('Y') != date('Y',$r['d_created'])) $formatCreatedInline = Config::get('dateformat2');
+    if($r['d_completed'] && date('Y') != date('Y',$r['d_completed'])) $formatCompletedInline = Config::get('dateformat2');
 
-	$dCreated = timestampToDatetime($r['d_created']);
-	$dCompleted = $r['d_completed'] ? timestampToDatetime($r['d_completed']) : '';
+    $dCreated = timestampToDatetime($r['d_created']);
+    $dCompleted = $r['d_completed'] ? timestampToDatetime($r['d_completed']) : '';
 
-	return array(
-		'id' => $r['id'],
-		'title' => titleMarkup( $r['title'] ),
-		'titleText' => (string)$r['title'],
-		'listId' => $r['list_id'],
-		'date' => htmlarray($dCreated),
-		'dateInt' => (int)$r['d_created'],
-		'dateInline' => htmlarray(formatTime($formatCreatedInline, $r['d_created'])),
-		'dateInlineTitle' => htmlarray(sprintf($lang->get('taskdate_inline_created'), $dCreated)),
-		'dateEditedInt' => (int)$r['d_edited'],
-		'dateCompleted' => htmlarray($dCompleted),
-		'dateCompletedInline' => $r['d_completed'] ? htmlarray(formatTime($formatCompletedInline, $r['d_completed'])) : '',
-		'dateCompletedInlineTitle' => htmlarray(sprintf($lang->get('taskdate_inline_completed'), $dCompleted)),
-		'compl' => (int)$r['compl'],
-		'prio' => $r['prio'],
-		'note' => noteMarkup($r['note']),
-		'noteText' => (string)$r['note'],
-		'ow' => (int)$r['ow'],
-		'tags' => htmlarray($r['tags']),
-		'tags_ids' => htmlarray($r['tags_ids']),
-		'duedate' => $dueA['formatted'],
-		'dueClass' => $dueA['class'],
-		'dueStr' => htmlarray($r['compl'] && $dueA['timestamp'] ? formatTime($formatCompletedInline, $dueA['timestamp']) : $dueA['str']),
-		'dueInt' => date2int($r['duedate']),
-		'dueTitle' => htmlarray(sprintf($lang->get('taskdate_inline_duedate'), $dueA['formattedlong'])),
-	);
+    return array(
+        'id' => $r['id'],
+        'title' => titleMarkup( $r['title'] ),
+        'titleText' => (string)$r['title'],
+        'listId' => $r['list_id'],
+        'date' => htmlarray($dCreated),
+        'dateInt' => (int)$r['d_created'],
+        'dateInline' => htmlarray(formatTime($formatCreatedInline, $r['d_created'])),
+        'dateInlineTitle' => htmlarray(sprintf($lang->get('taskdate_inline_created'), $dCreated)),
+        'dateEditedInt' => (int)$r['d_edited'],
+        'dateCompleted' => htmlarray($dCompleted),
+        'dateCompletedInline' => $r['d_completed'] ? htmlarray(formatTime($formatCompletedInline, $r['d_completed'])) : '',
+        'dateCompletedInlineTitle' => htmlarray(sprintf($lang->get('taskdate_inline_completed'), $dCompleted)),
+        'compl' => (int)$r['compl'],
+        'prio' => $r['prio'],
+        'note' => noteMarkup($r['note']),
+        'noteText' => (string)$r['note'],
+        'ow' => (int)$r['ow'],
+        'tags' => htmlarray($r['tags']),
+        'tags_ids' => htmlarray($r['tags_ids']),
+        'duedate' => $dueA['formatted'],
+        'dueClass' => $dueA['class'],
+        'dueStr' => htmlarray($r['compl'] && $dueA['timestamp'] ? formatTime($formatCompletedInline, $dueA['timestamp']) : $dueA['str']),
+        'dueInt' => date2int($r['duedate']),
+        'dueTitle' => htmlarray(sprintf($lang->get('taskdate_inline_duedate'), $dueA['formattedlong'])),
+    );
 }
 
 function check_read_access($listId = null)
 {
-	check_token();
-	$db = DBConnection::instance();
-	if(is_logged()) return true;
-	if($listId !== null)
-	{
-		$id = $db->sq("SELECT id FROM {$db->prefix}lists WHERE id=? AND published=1", array($listId));
-		if($id) return;
-	}
-	jsonExit( array('total'=>0, 'list'=>array(), 'denied'=>1) );
+    check_token();
+    $db = DBConnection::instance();
+    if(is_logged()) return true;
+    if($listId !== null)
+    {
+        $id = $db->sq("SELECT id FROM {$db->prefix}lists WHERE id=? AND published=1", array($listId));
+        if($id) return;
+    }
+    jsonExit( array('total'=>0, 'list'=>array(), 'denied'=>1) );
 }
 
 function have_write_access($listId = null)
 {
-	if(is_readonly()) return false;
-	// check list exist
-	if($listId !== null)
-	{
-		$db = DBConnection::instance();
-		$count = $db->sq("SELECT COUNT(*) FROM {$db->prefix}lists WHERE id=?", array($listId));
-		if(!$count) return false;
-	}
-	return true;
+    if(is_readonly()) return false;
+    // check list exist
+    if($listId !== null)
+    {
+        $db = DBConnection::instance();
+        $count = $db->sq("SELECT COUNT(*) FROM {$db->prefix}lists WHERE id=?", array($listId));
+        if(!$count) return false;
+    }
+    return true;
 }
 
 function check_write_access($listId = null)
 {
-	check_token();
-	if(have_write_access($listId)) return;
-	jsonExit( array('total'=>0, 'list'=>array(), 'denied'=>1) );
+    check_token();
+    if(have_write_access($listId)) return;
+    jsonExit( array('total'=>0, 'list'=>array(), 'denied'=>1) );
 }
 
 function inputTaskParams()
 {
-	$a = array(
-		'id' => _post('id'),
-		'title'=> trim(_post('title')),
-		'note' => str_replace("\r\n", "\n", trim(_post('note'))),
-		'prio' => (int)_post('prio'),
-		'duedate' => '',
-		'tags' => trim(_post('tags')),
-		'listId' => (int)_post('list'),
+    $a = array(
+        'id' => _post('id'),
+        'title'=> trim(_post('title')),
+        'note' => str_replace("\r\n", "\n", trim(_post('note'))),
+        'prio' => (int)_post('prio'),
+        'duedate' => '',
+        'tags' => trim(_post('tags')),
+        'listId' => (int)_post('list'),
 
-	);
-	if($a['prio'] < -1) $a['prio'] = -1;
-	elseif($a['prio'] > 2) $a['prio'] = 2;
-	return $a;
+    );
+    if($a['prio'] < -1) $a['prio'] = -1;
+    elseif($a['prio'] > 2) $a['prio'] = 2;
+    return $a;
 }
 
 function prepareTags($tagsStr)
 {
-	$tags = explode(',', $tagsStr);
-	if(!$tags) return 0;
+    $tags = explode(',', $tagsStr);
+    if(!$tags) return 0;
 
-	$aTags = array('tags'=>array(), 'ids'=>array());
-	foreach($tags as $tag)
-	{
-		$tag = str_replace(array('"',"'",'<','>','&','/','\\','^','#'),'',trim($tag));
-		if($tag == '') continue;
+    $aTags = array('tags'=>array(), 'ids'=>array());
+    foreach($tags as $tag)
+    {
+        $tag = str_replace(array('"',"'",'<','>','&','/','\\','^','#'),'',trim($tag));
+        if($tag == '') continue;
 
-		$aTag = getOrCreateTag($tag);
-		if($aTag && !in_array($aTag['id'], $aTags['ids'])) {
-			$aTags['tags'][] = $aTag['name'];
-			$aTags['ids'][] = $aTag['id'];
-		}
-	}
-	return $aTags;
+        $aTag = getOrCreateTag($tag);
+        if($aTag && !in_array($aTag['id'], $aTags['ids'])) {
+            $aTags['tags'][] = $aTag['name'];
+            $aTags['ids'][] = $aTag['id'];
+        }
+    }
+    return $aTags;
 }
 
 function getOrCreateTag($name)
 {
-	$db = DBConnection::instance();
-	$tagId = $db->sq("SELECT id FROM {$db->prefix}tags WHERE name=?", array($name));
-	if($tagId) return array('id'=>$tagId, 'name'=>$name);
+    $db = DBConnection::instance();
+    $tagId = $db->sq("SELECT id FROM {$db->prefix}tags WHERE name=?", array($name));
+    if($tagId) return array('id'=>$tagId, 'name'=>$name);
 
-	$db->ex("INSERT INTO {$db->prefix}tags (name) VALUES (?)", array($name));
-	return array('id'=>$db->lastInsertId(), 'name'=>$name);
+    $db->ex("INSERT INTO {$db->prefix}tags (name) VALUES (?)", array($name));
+    return array('id'=>$db->lastInsertId(), 'name'=>$name);
 }
 
 function getTagId($tag)
 {
-	$db = DBConnection::instance();
-	$id = $db->sq("SELECT id FROM {$db->prefix}tags WHERE name=?", array($tag));
-	return $id ? $id : 0;
+    $db = DBConnection::instance();
+    $id = $db->sq("SELECT id FROM {$db->prefix}tags WHERE name=?", array($tag));
+    return $id ? $id : 0;
 }
 
 function get_task_tags($id)
 {
-	$db = DBConnection::instance();
-	$q = $db->dq("SELECT tag_id FROM {$db->prefix}tag2task WHERE task_id=?", $id);
-	$a = array();
-	while($r = $q->fetchRow()) {
-		$a[] = $r[0];
-	}
-	return $a;
+    $db = DBConnection::instance();
+    $q = $db->dq("SELECT tag_id FROM {$db->prefix}tag2task WHERE task_id=?", $id);
+    $a = array();
+    while($r = $q->fetchRow()) {
+        $a[] = $r[0];
+    }
+    return $a;
 }
 
 
 function addTaskTags($taskId, $tagIds, $listId)
 {
-	$db = DBConnection::instance();
-	if(!$tagIds) return;
-	foreach($tagIds as $tagId)
-	{
-		$db->ex("INSERT INTO {$db->prefix}tag2task (task_id,tag_id,list_id) VALUES (?,?,?)", array($taskId,$tagId,$listId));
-	}
+    $db = DBConnection::instance();
+    if(!$tagIds) return;
+    foreach($tagIds as $tagId)
+    {
+        $db->ex("INSERT INTO {$db->prefix}tag2task (task_id,tag_id,list_id) VALUES (?,?,?)", array($taskId,$tagId,$listId));
+    }
 }
 
 function parse_smartsyntax($title)
 {
-	$a = [
-		'prio' => 0,
-		'title' => $title,
-		'tags' => ''
-	];
-	if ( preg_match("|^([-+]{1}\d+)(.+)|", $a['title'], $m) ) {
-		$a['prio'] = (int) $m[1];
-		if ( $a['prio'] < -1 ) $a['prio'] = -1;
-		elseif ( $a['prio'] > 2 ) $a['prio'] = 2;
-		$a['title'] = trim($m[2]);
-	}
-	$tags = [];
-	$a['title'] = trim( preg_replace_callback(
-		"/(?:^|\s+)#([^#\s]+)/",
-		function ($matches) use (&$tags) {
-			$tags[] = $matches[1];
-			return '';
-		},
-		$a['title']
-	) );
-	if (count($tags) > 0) {
-		$a['tags'] = implode( ',' , $tags );
-	}
-	return $a;
+    $a = [
+        'prio' => 0,
+        'title' => $title,
+        'tags' => ''
+    ];
+    if ( preg_match("|^([-+]{1}\d+)(.+)|", $a['title'], $m) ) {
+        $a['prio'] = (int) $m[1];
+        if ( $a['prio'] < -1 ) $a['prio'] = -1;
+        elseif ( $a['prio'] > 2 ) $a['prio'] = 2;
+        $a['title'] = trim($m[2]);
+    }
+    $tags = [];
+    $a['title'] = trim( preg_replace_callback(
+        "/(?:^|\s+)#([^#\s]+)/",
+        function ($matches) use (&$tags) {
+            $tags[] = $matches[1];
+            return '';
+        },
+        $a['title']
+    ) );
+    if (count($tags) > 0) {
+        $a['tags'] = implode( ',' , $tags );
+    }
+    return $a;
 }
 
 
 function tag_size($qmin, $q, $step)
 {
-	if($step == 0) return 1;
-	$v = ceil(($q - $qmin)/$step);
-	if($v == 0) return 0;
-	else return $v-1;
+    if($step == 0) return 1;
+    $v = ceil(($q - $qmin)/$step);
+    if($v == 0) return 0;
+    else return $v-1;
 
 }
 
 function parse_duedate($s)
 {
-	$df2 = Config::get('dateformat2');
-	if(max((int)strpos($df2,'n'), (int)strpos($df2,'m')) > max((int)strpos($df2,'d'), (int)strpos($df2,'j'))) $formatDayFirst = true;
-	else $formatDayFirst = false;
+    $df2 = Config::get('dateformat2');
+    if(max((int)strpos($df2,'n'), (int)strpos($df2,'m')) > max((int)strpos($df2,'d'), (int)strpos($df2,'j'))) $formatDayFirst = true;
+    else $formatDayFirst = false;
 
-	$y = $m = $d = 0;
-	if(preg_match("|^(\d+)-(\d+)-(\d+)\b|", $s, $ma)) {
-		$y = (int)$ma[1]; $m = (int)$ma[2]; $d = (int)$ma[3];
-	}
-	elseif(preg_match("|^(\d+)\/(\d+)\/(\d+)\b|", $s, $ma))
-	{
-		if($formatDayFirst) {
-			$d = (int)$ma[1]; $m = (int)$ma[2]; $y = (int)$ma[3];
-		} else {
-			$m = (int)$ma[1]; $d = (int)$ma[2]; $y = (int)$ma[3];
-		}
-	}
-	elseif(preg_match("|^(\d+)\.(\d+)\.(\d+)\b|", $s, $ma)) {
-		$d = (int)$ma[1]; $m = (int)$ma[2]; $y = (int)$ma[3];
-	}
-	elseif(preg_match("|^(\d+)\.(\d+)\b|", $s, $ma)) {
-		$d = (int)$ma[1]; $m = (int)$ma[2];
-		$a = explode(',', date('Y,m,d'));
-		if( $m<(int)$a[1] || ($m==(int)$a[1] && $d<(int)$a[2]) ) $y = (int)$a[0]+1;
-		else $y = (int)$a[0];
-	}
-	elseif(preg_match("|^(\d+)\/(\d+)\b|", $s, $ma))
-	{
-		if($formatDayFirst) {
-			$d = (int)$ma[1]; $m = (int)$ma[2];
-		} else {
-			$m = (int)$ma[1]; $d = (int)$ma[2];
-		}
-		$a = explode(',', date('Y,m,d'));
-		if( $m<(int)$a[1] || ($m==(int)$a[1] && $d<(int)$a[2]) ) $y = (int)$a[0]+1;
-		else $y = (int)$a[0];
-	}
-	else return null;
-	if($y < 100) $y = 2000 + $y;
-	elseif($y < 1000 || $y > 2099) $y = 2000 + (int)substr((string)$y, -2);
-	if($m > 12) $m = 12;
-	$maxdays = daysInMonth($m,$y);
-	if($m < 10) $m = '0'.$m;
-	if($d > $maxdays) $d = $maxdays;
-	elseif($d < 10) $d = '0'.$d;
-	return "$y-$m-$d";
+    $y = $m = $d = 0;
+    if(preg_match("|^(\d+)-(\d+)-(\d+)\b|", $s, $ma)) {
+        $y = (int)$ma[1]; $m = (int)$ma[2]; $d = (int)$ma[3];
+    }
+    elseif(preg_match("|^(\d+)\/(\d+)\/(\d+)\b|", $s, $ma))
+    {
+        if($formatDayFirst) {
+            $d = (int)$ma[1]; $m = (int)$ma[2]; $y = (int)$ma[3];
+        } else {
+            $m = (int)$ma[1]; $d = (int)$ma[2]; $y = (int)$ma[3];
+        }
+    }
+    elseif(preg_match("|^(\d+)\.(\d+)\.(\d+)\b|", $s, $ma)) {
+        $d = (int)$ma[1]; $m = (int)$ma[2]; $y = (int)$ma[3];
+    }
+    elseif(preg_match("|^(\d+)\.(\d+)\b|", $s, $ma)) {
+        $d = (int)$ma[1]; $m = (int)$ma[2];
+        $a = explode(',', date('Y,m,d'));
+        if( $m<(int)$a[1] || ($m==(int)$a[1] && $d<(int)$a[2]) ) $y = (int)$a[0]+1;
+        else $y = (int)$a[0];
+    }
+    elseif(preg_match("|^(\d+)\/(\d+)\b|", $s, $ma))
+    {
+        if($formatDayFirst) {
+            $d = (int)$ma[1]; $m = (int)$ma[2];
+        } else {
+            $m = (int)$ma[1]; $d = (int)$ma[2];
+        }
+        $a = explode(',', date('Y,m,d'));
+        if( $m<(int)$a[1] || ($m==(int)$a[1] && $d<(int)$a[2]) ) $y = (int)$a[0]+1;
+        else $y = (int)$a[0];
+    }
+    else return null;
+    if($y < 100) $y = 2000 + $y;
+    elseif($y < 1000 || $y > 2099) $y = 2000 + (int)substr((string)$y, -2);
+    if($m > 12) $m = 12;
+    $maxdays = daysInMonth($m,$y);
+    if($m < 10) $m = '0'.$m;
+    if($d > $maxdays) $d = $maxdays;
+    elseif($d < 10) $d = '0'.$d;
+    return "$y-$m-$d";
 }
 
 function prepare_duedate($duedate)
 {
-	$lang = Lang::instance();
+    $lang = Lang::instance();
 
-	$a = array( 'class'=>'', 'str'=>'', 'formatted'=>'', 'formattedlong'=>'', 'timestamp'=>0 );
-	if($duedate == '') {
-		return $a;
-	}
-	$ad = explode('-', $duedate);
-	$at = explode('-', date('Y-m-d'));
-	$a['timestamp'] = mktime(0,0,0,$ad[1],$ad[2],$ad[0]);
-	$diff = mktime(0,0,0,$ad[1],$ad[2],$ad[0]) - mktime(0,0,0,$at[1],$at[2],$at[0]);
+    $a = array( 'class'=>'', 'str'=>'', 'formatted'=>'', 'formattedlong'=>'', 'timestamp'=>0 );
+    if($duedate == '') {
+        return $a;
+    }
+    $ad = explode('-', $duedate);
+    $at = explode('-', date('Y-m-d'));
+    $a['timestamp'] = mktime(0,0,0,$ad[1],$ad[2],$ad[0]);
+    $diff = mktime(0,0,0,$ad[1],$ad[2],$ad[0]) - mktime(0,0,0,$at[1],$at[2],$at[0]);
 
-	if($diff < -604800 && $ad[0] == $at[0])	{ $a['class'] = 'past'; $a['str'] = formatDate3(Config::get('dateformatshort'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
-	elseif($diff < -604800)		{ $a['class'] = 'past'; $a['str'] = formatDate3(Config::get('dateformat2'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
-	elseif($diff < -86400)		{ $a['class'] = 'past'; $a['str'] = sprintf($lang->get('daysago'),ceil(abs($diff)/86400)); }
-	elseif($diff < 0)			{ $a['class'] = 'past'; $a['str'] = $lang->get('yesterday'); }
-	elseif($diff < 86400)		{ $a['class'] = 'today'; $a['str'] = $lang->get('today'); }
-	elseif($diff < 172800)		{ $a['class'] = 'today'; $a['str'] = $lang->get('tomorrow'); }
-	elseif($diff < 691200)		{ $a['class'] = 'soon'; $a['str'] = sprintf($lang->get('indays'),ceil($diff/86400)); }
-	elseif($ad[0] == $at[0])	{ $a['class'] = 'future'; $a['str'] = formatDate3(Config::get('dateformatshort'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
-	else						{ $a['class'] = 'future'; $a['str'] = formatDate3(Config::get('dateformat2'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
+    if($diff < -604800 && $ad[0] == $at[0])	{ $a['class'] = 'past'; $a['str'] = formatDate3(Config::get('dateformatshort'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
+    elseif($diff < -604800)		{ $a['class'] = 'past'; $a['str'] = formatDate3(Config::get('dateformat2'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
+    elseif($diff < -86400)		{ $a['class'] = 'past'; $a['str'] = sprintf($lang->get('daysago'),ceil(abs($diff)/86400)); }
+    elseif($diff < 0)			{ $a['class'] = 'past'; $a['str'] = $lang->get('yesterday'); }
+    elseif($diff < 86400)		{ $a['class'] = 'today'; $a['str'] = $lang->get('today'); }
+    elseif($diff < 172800)		{ $a['class'] = 'today'; $a['str'] = $lang->get('tomorrow'); }
+    elseif($diff < 691200)		{ $a['class'] = 'soon'; $a['str'] = sprintf($lang->get('indays'),ceil($diff/86400)); }
+    elseif($ad[0] == $at[0])	{ $a['class'] = 'future'; $a['str'] = formatDate3(Config::get('dateformatshort'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
+    else						{ $a['class'] = 'future'; $a['str'] = formatDate3(Config::get('dateformat2'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang); }
 
-	#avoid short year
-	$fmt = str_replace('y', 'Y', Config::get('dateformat2'));
-	$a['formatted'] = formatTime($fmt, $a['timestamp']);
-	$a['formattedlong'] = formatTime(Config::get('dateformat'), $a['timestamp']);
+    #avoid short year
+    $fmt = str_replace('y', 'Y', Config::get('dateformat2'));
+    $a['formatted'] = formatTime($fmt, $a['timestamp']);
+    $a['formattedlong'] = formatTime(Config::get('dateformat'), $a['timestamp']);
 
-	return $a;
+    return $a;
 }
 
 function date2int($d)
 {
-	if(!$d) return 33330000;
-	$ad = explode('-', $d);
-	$s = $ad[0];
-	if(strlen($ad[1]) < 2) $s .= "0$ad[1]"; else $s .= $ad[1];
-	if(strlen($ad[2]) < 2) $s .= "0$ad[2]"; else $s .= $ad[2];
-	return (int)$s;
+    if(!$d) return 33330000;
+    $ad = explode('-', $d);
+    $s = $ad[0];
+    if(strlen($ad[1]) < 2) $s .= "0$ad[1]"; else $s .= $ad[1];
+    if(strlen($ad[2]) < 2) $s .= "0$ad[2]"; else $s .= $ad[2];
+    return (int)$s;
 }
 
 function daysInMonth($m, $y=0)
 {
-	if($y == 0) $y = (int)date('Y');
-	$a = array(1=>31,(($y-2000)%4?28:29),31,30,31,30,31,31,30,31,30,31);
-	if(isset($a[$m])) return $a[$m]; else return 0;
+    if($y == 0) $y = (int)date('Y');
+    $a = array(1=>31,(($y-2000)%4?28:29),31,30,31,30,31,31,30,31,30,31);
+    if(isset($a[$m])) return $a[$m]; else return 0;
 }
 
 function myErrorHandler($errno, $errstr, $errfile, $errline)
 {
-	if ($errno==E_ERROR || $errno==E_CORE_ERROR || $errno==E_COMPILE_ERROR || $errno==E_USER_ERROR || $errno==E_PARSE) {
-		$error = 'Error';
-	}
-	elseif ($errno==E_WARNING || $errno==E_CORE_WARNING || $errno==E_COMPILE_WARNING || $errno==E_USER_WARNING || $errno==E_STRICT) {
-		if (error_reporting() & $errno) $error = 'Warning'; else return;
-	}
-	elseif ($errno==E_NOTICE || $errno==E_USER_NOTICE || $errno==E_DEPRECATED || $errno==E_USER_DEPRECATED) {
-		if (error_reporting() & $errno) $error = 'Notice'; else return;
-	}
-	else $error = "Error ($errno)";	# here may be E_RECOVERABLE_ERROR
-	throw new Exception("$error: '$errstr' in $errfile:$errline", -1);
+    if ($errno==E_ERROR || $errno==E_CORE_ERROR || $errno==E_COMPILE_ERROR || $errno==E_USER_ERROR || $errno==E_PARSE) {
+        $error = 'Error';
+    }
+    elseif ($errno==E_WARNING || $errno==E_CORE_WARNING || $errno==E_COMPILE_WARNING || $errno==E_USER_WARNING || $errno==E_STRICT) {
+        if (error_reporting() & $errno) $error = 'Warning'; else return;
+    }
+    elseif ($errno==E_NOTICE || $errno==E_USER_NOTICE || $errno==E_DEPRECATED || $errno==E_USER_DEPRECATED) {
+        if (error_reporting() & $errno) $error = 'Notice'; else return;
+    }
+    else $error = "Error ($errno)";	# here may be E_RECOVERABLE_ERROR
+    throw new Exception("$error: '$errstr' in $errfile:$errline", -1);
 }
 
 function myExceptionHandler($e)
 {
-	// to avoid Exception thrown without a stack frame
-	try
-	{
-		if (-1 == $e->getCode()) {
-			//thrown in myErrorHandler
-			logAndDie( $e->getMessage() );
-		}
+    // to avoid Exception thrown without a stack frame
+    try
+    {
+        if (-1 == $e->getCode()) {
+            //thrown in myErrorHandler
+            logAndDie( $e->getMessage() );
+        }
 
-		$c = get_class($e);
-		$errText = "Exception ($c): '". $e->getMessage(). "' in ". $e->getFile(). ":". $e->getLine() ;
+        $c = get_class($e);
+        $errText = "Exception ($c): '". $e->getMessage(). "' in ". $e->getFile(). ":". $e->getLine() ;
 
-		if (MTT_DEBUG) {
-			if ( count($e->getTrace()) > 0 ) {
-				$errText .= "\n". $e->getTraceAsString() ;
-			}
-		}
-		logAndDie($errText);
-	}
-	catch (Exception $e) {
-		logAndDie('Exception in ExceptionHandler: \''. $e->getMessage() .'\' in '. $e->getFile() .':'. $e->getLine());
-	}
-	exit;
+        if (MTT_DEBUG) {
+            if ( count($e->getTrace()) > 0 ) {
+                $errText .= "\n". $e->getTraceAsString() ;
+            }
+        }
+        logAndDie($errText);
+    }
+    catch (Exception $e) {
+        logAndDie('Exception in ExceptionHandler: \''. $e->getMessage() .'\' in '. $e->getFile() .':'. $e->getLine());
+    }
+    exit;
 }
 
 function deleteTask($id)
 {
-	check_write_access();
-	$db = DBConnection::instance();
-	$db->ex("BEGIN");
-	$db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id=$id");
-	//TODO: delete unused tags?
-	$db->dq("DELETE FROM {$db->prefix}todolist WHERE id=$id");
-	$affected = $db->affected();
-	$db->ex("COMMIT");
-	return $affected;
+    check_write_access();
+    $db = DBConnection::instance();
+    $db->ex("BEGIN");
+    $db->ex("DELETE FROM {$db->prefix}tag2task WHERE task_id=$id");
+    //TODO: delete unused tags?
+    $db->dq("DELETE FROM {$db->prefix}todolist WHERE id=$id");
+    $affected = $db->affected();
+    $db->ex("COMMIT");
+    return $affected;
 }
 
 function moveTask($id, $listId)
 {
-	check_write_access();
-	$db = DBConnection::instance();
+    check_write_access();
+    $db = DBConnection::instance();
 
-	// Check task exists and not in target list
-	$r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=?", array($id));
-	if(!$r || $listId == $r['list_id']) return false;
+    // Check task exists and not in target list
+    $r = $db->sqa("SELECT * FROM {$db->prefix}todolist WHERE id=?", array($id));
+    if(!$r || $listId == $r['list_id']) return false;
 
-	// Check target list exists
-	if(!$db->sq("SELECT COUNT(*) FROM {$db->prefix}lists WHERE id=?", $listId))
-		return false;
+    // Check target list exists
+    if(!$db->sq("SELECT COUNT(*) FROM {$db->prefix}lists WHERE id=?", $listId))
+        return false;
 
-	$ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=? AND compl=?", array($listId, $r['compl']?1:0));
+    $ow = 1 + (int)$db->sq("SELECT MAX(ow) FROM {$db->prefix}todolist WHERE list_id=? AND compl=?", array($listId, $r['compl']?1:0));
 
-	$db->ex("BEGIN");
-	$db->ex("UPDATE {$db->prefix}tag2task SET list_id=? WHERE task_id=?", array($listId, $id));
-	$db->dq("UPDATE {$db->prefix}todolist SET list_id=?, ow=?, d_edited=? WHERE id=?", array($listId, $ow, time(), $id));
-	$db->ex("COMMIT");
-	return true;
+    $db->ex("BEGIN");
+    $db->ex("UPDATE {$db->prefix}tag2task SET list_id=? WHERE task_id=?", array($listId, $id));
+    $db->dq("UPDATE {$db->prefix}todolist SET list_id=?, ow=?, d_edited=? WHERE id=?", array($listId, $ow, time(), $id));
+    $db->ex("COMMIT");
+    return true;
 }
 
 function prepareList($row)
 {
-	$taskview = (int)$row['taskview'];
-	return array(
-		'id' => $row['id'],
-		'name' => htmlarray($row['name']),
-		'sort' => (int)$row['sorting'],
-		'published' => $row['published'] ? 1 :0,
-		'showCompl' => $taskview & 1 ? 1 : 0,
-		'showNotes' => $taskview & 2 ? 1 : 0,
-		'hidden' => $taskview & 4 ? 1 : 0,
-	);
+    $taskview = (int)$row['taskview'];
+    return array(
+        'id' => $row['id'],
+        'name' => htmlarray($row['name']),
+        'sort' => (int)$row['sorting'],
+        'published' => $row['published'] ? 1 :0,
+        'showCompl' => $taskview & 1 ? 1 : 0,
+        'showNotes' => $taskview & 2 ? 1 : 0,
+        'hidden' => $taskview & 4 ? 1 : 0,
+    );
 }
 
 function prepareAllTasksList()
 {
-	//default values
-	$hidden = 1;
-	$sort = 3;
+    //default values
+    $hidden = 1;
+    $sort = 3;
 
-	$opts = Config::requestDomain('alltasks.json');
-	if ( isset($opts['hidden']) ) $hidden = (int)$opts['hidden'] ? 1 : 0;
-	if ( isset($opts['sort']) ) $sort = (int)$opts['sort'];
+    $opts = Config::requestDomain('alltasks.json');
+    if ( isset($opts['hidden']) ) $hidden = (int)$opts['hidden'] ? 1 : 0;
+    if ( isset($opts['sort']) ) $sort = (int)$opts['sort'];
 
-	return array(
-		'id' => -1,
-		'name' => htmlarray(__('alltasks')),
-		'sort' => $sort,
-		'published' => 0,
-		'showCompl' => 1,
-		'showNotes' => 0,
-		'hidden' => $hidden,
-	);
+    return array(
+        'id' => -1,
+        'name' => htmlarray(__('alltasks')),
+        'sort' => $sort,
+        'published' => 0,
+        'showCompl' => 1,
+        'showNotes' => 0,
+        'hidden' => $hidden,
+    );
 }
 
 function getUserListsSimple()
 {
-	$db = DBConnection::instance();
-	$a = array();
-	$q = $db->dq("SELECT id,name FROM {$db->prefix}lists ORDER BY id ASC");
-	while($r = $q->fetchRow()) {
-		$a[$r[0]] = $r[1];
-	}
-	return $a;
+    $db = DBConnection::instance();
+    $a = array();
+    $q = $db->dq("SELECT id,name FROM {$db->prefix}lists ORDER BY id ASC");
+    while($r = $q->fetchRow()) {
+        $a[$r[0]] = $r[1];
+    }
+    return $a;
 }
 
 
diff --git a/src/docker-config.php b/src/docker-config.php
index ec074ab..9f643a2 100644
--- a/src/docker-config.php
+++ b/src/docker-config.php
@@ -3,17 +3,17 @@
 // Rename it to config.php before using in docker.
 
 if (getenv('MTT_DB_TYPE') == 'mysql') {
-	define("MTT_DB_TYPE", "mysql");
-	define("MTT_DB_HOST", getenv('MTT_DB_HOST'));
-	define("MTT_DB_NAME", getenv('MTT_DB'));
-	define("MTT_DB_USER", getenv('MTT_DB_USER'));
-	define("MTT_DB_PASSWORD", getenv('MTT_DB_PASSWORD'));
-	define("MTT_DB_PREFIX", getenv('MTT_DB_PREFIX'));
-	define("MTT_DB_DRIVER", getenv('MTT_DB_DRIVER'));
+    define("MTT_DB_TYPE", "mysql");
+    define("MTT_DB_HOST", getenv('MTT_DB_HOST'));
+    define("MTT_DB_NAME", getenv('MTT_DB'));
+    define("MTT_DB_USER", getenv('MTT_DB_USER'));
+    define("MTT_DB_PASSWORD", getenv('MTT_DB_PASSWORD'));
+    define("MTT_DB_PREFIX", getenv('MTT_DB_PREFIX'));
+    define("MTT_DB_DRIVER", getenv('MTT_DB_DRIVER'));
 }
 else if (getenv('MTT_DB_TYPE') == 'sqlite') {
-	define("MTT_DB_TYPE", "sqlite");
-	define("MTT_DB_PREFIX", "");
+    define("MTT_DB_TYPE", "sqlite");
+    define("MTT_DB_PREFIX", "");
 }
 
 define("MTT_SALT", "Random text");
\ No newline at end of file
diff --git a/src/export.php b/src/export.php
index d0f74d9..7af704e 100644
--- a/src/export.php
+++ b/src/export.php
@@ -1,9 +1,9 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2010-2011,2019-2021 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2010-2011,2019-2021 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 //$dontStartSession = 1;
@@ -15,7 +15,7 @@ if(!have_write_access()) $onlyPublishedList = true;
 $listId = (int)_get('list');
 $listData = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$listId ". ($onlyPublishedList ? "AND published=1" : "") );
 if(!$listData) {
-	die("No such list or access denied");
+    die("No such list or access denied");
 }
 
 $sqlSort = "ORDER BY compl ASC, ";
@@ -27,7 +27,7 @@ $data = array();
 $q = $db->dq("SELECT *, duedate IS NULL AS ddn FROM {$db->prefix}todolist WHERE list_id=$listId $sqlSort");
 while($r = $q->fetchAssoc())
 {
-	$data[] = $r;
+    $data[] = $r;
 }
 
 $format = _get('format');
@@ -38,124 +38,124 @@ else printCSV($listData, $data);
 
 function have_write_access()
 {
-	if(is_logged()) return true;
-	return false;
+    if(is_logged()) return true;
+    return false;
 }
 
 
 function printCSV($listData, $data)
 {
-	$s = "\xEF\xBB\xBF". "Completed;Priority;Task;Notes;Tags;Due;DateCreated;DateCompleted\n";
-	foreach($data as $r)
-	{
-		$s .= ($r['compl']?'1':'0'). ';'.
-		    $r['prio']. ';'. escape_csv($r['title']). ';'.
-			escape_csv($r['note']). ';'.
-			escape_csv($r['tags']). ';'.
-			$r['duedate']. ';'.
-			date('Y-m-d H:i:s O',$r['d_created']). ';'.
-			($r['d_completed'] ? date('Y-m-d H:i:s O',$r['d_completed']) :''). "\n";
-	}
-	header('Content-type: text/csv; charset=utf-8');
-	header('Content-disposition: attachment; filename=list_'.(int)$listData['id'].'.csv');
-	print $s;
+    $s = "\xEF\xBB\xBF". "Completed;Priority;Task;Notes;Tags;Due;DateCreated;DateCompleted\n";
+    foreach($data as $r)
+    {
+        $s .= ($r['compl']?'1':'0'). ';'.
+            $r['prio']. ';'. escape_csv($r['title']). ';'.
+            escape_csv($r['note']). ';'.
+            escape_csv($r['tags']). ';'.
+            $r['duedate']. ';'.
+            date('Y-m-d H:i:s O',$r['d_created']). ';'.
+            ($r['d_completed'] ? date('Y-m-d H:i:s O',$r['d_completed']) :''). "\n";
+    }
+    header('Content-type: text/csv; charset=utf-8');
+    header('Content-disposition: attachment; filename=list_'.(int)$listData['id'].'.csv');
+    print $s;
 }
 
 function escape_csv($v)
 {
     //escape formulas
     $nf = '';
-	$trimmed = ltrim($v);
+    $trimmed = ltrim($v);
     if (strlen($trimmed) > 0 && in_array(substr($trimmed, 0, 1), array('=', '+', '-', '@'))) {
         $nf = "'";
     }
-	return '"'. $nf. str_replace('"', '""', $v). '"';
+    return '"'. $nf. str_replace('"', '""', $v). '"';
 }
 
 function printICal($listData, $data)
 {
-	$mttToIcalPrio = array("1" => 5, "2" => 1);
-	$s = "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nMETHOD:PUBLISH\r\nCALSCALE:GREGORIAN\r\nPRODID:-//myTinyTodo//iCalendar Export v1.4//EN\r\n".
-		"X-WR-CALNAME:". $listData['name']. "\r\nX-MTT-TIMEZONE:".Config::get('timezone')."\r\n";
-	# to-do
-	foreach($data as $r)
-	{
-		$a = array();
-		$a[] = "BEGIN:VTODO";
-		$a[] = "UID:". $r['uuid'];
-		$a[] = "CREATED:". gmdate('Ymd\THis\Z', $r['d_created']);
-		$a[] = "DTSTAMP:". gmdate('Ymd\THis\Z', $r['d_edited']);
-		$a[] = "LAST-MODIFIED:". gmdate('Ymd\THis\Z', $r['d_edited']);
-		$a[] = utf8chunks("SUMMARY:". $r['title']);
-		if($r['duedate']) {
-			$dda = explode('-', $r['duedate']);
-			$a[] = "DUE;VALUE=DATE:".sprintf("%u%02u%02u", $dda[0], $dda[1], $dda[2]);
-		}
-		# Apple's iCal priorities: low-9, medium-5, high-1
-		if($r['prio'] > 0 && isset($mttToIcalPrio[$r['prio']])) $a[] = "PRIORITY:". $mttToIcalPrio[$r['prio']];
-		$a[] = "X-MTT-PRIORITY:". $r['prio'];
+    $mttToIcalPrio = array("1" => 5, "2" => 1);
+    $s = "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nMETHOD:PUBLISH\r\nCALSCALE:GREGORIAN\r\nPRODID:-//myTinyTodo//iCalendar Export v1.4//EN\r\n".
+        "X-WR-CALNAME:". $listData['name']. "\r\nX-MTT-TIMEZONE:".Config::get('timezone')."\r\n";
+    # to-do
+    foreach($data as $r)
+    {
+        $a = array();
+        $a[] = "BEGIN:VTODO";
+        $a[] = "UID:". $r['uuid'];
+        $a[] = "CREATED:". gmdate('Ymd\THis\Z', $r['d_created']);
+        $a[] = "DTSTAMP:". gmdate('Ymd\THis\Z', $r['d_edited']);
+        $a[] = "LAST-MODIFIED:". gmdate('Ymd\THis\Z', $r['d_edited']);
+        $a[] = utf8chunks("SUMMARY:". $r['title']);
+        if($r['duedate']) {
+            $dda = explode('-', $r['duedate']);
+            $a[] = "DUE;VALUE=DATE:".sprintf("%u%02u%02u", $dda[0], $dda[1], $dda[2]);
+        }
+        # Apple's iCal priorities: low-9, medium-5, high-1
+        if($r['prio'] > 0 && isset($mttToIcalPrio[$r['prio']])) $a[] = "PRIORITY:". $mttToIcalPrio[$r['prio']];
+        $a[] = "X-MTT-PRIORITY:". $r['prio'];
 
-		$descr = array();
-		if($r['tags'] != '') $descr[] = Lang::instance()->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
-		if($r['note'] != '') $descr[] = Lang::instance()->get('note'). ": ". $r['note'];
-		if($descr) $a[] = utf8chunks("DESCRIPTION:". str_replace("\n", '\\n', implode("\n",$descr)));
+        $descr = array();
+        if($r['tags'] != '') $descr[] = Lang::instance()->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
+        if($r['note'] != '') $descr[] = Lang::instance()->get('note'). ": ". $r['note'];
+        if($descr) $a[] = utf8chunks("DESCRIPTION:". str_replace("\n", '\\n', implode("\n",$descr)));
 
-		if($r['compl']) {
-			$a[] = "STATUS:COMPLETED"; #used in Sunbird
-			$a[] = "COMPLETED:". gmdate('Ymd\THis\Z', $r['d_completed']);
-			#$a[] = "PERCENT-COMPLETE:100"; #used in Sunbird
-		}
-		if($r['tags'] != '') $a[] = utf8chunks("X-MTT-TAGS:". $r['tags']);
-		$a[] = "END:VTODO\r\n";
-		$s .= implode("\r\n", $a);
-	}
-	# events
-	foreach($data as $r)
-	{
-		if(!$r['duedate'] || $r['compl']) continue;	# skip tasks completed and without duedate
-		$a = array();
-		$a[] = "BEGIN:VEVENT";
-		$a[] = "UID:_". $r['uuid'];	# do not duplicate VTODO UID
-		$a[] = "CREATED:". gmdate('Ymd\THis\Z', $r['d_created']);
-		$a[] = "DTSTAMP:". gmdate('Ymd\THis\Z', $r['d_edited']);
-		$a[] = "LAST-MODIFIED:". gmdate('Ymd\THis\Z', $r['d_edited']);
-		$a[] = utf8chunks("SUMMARY:". $r['title']);
-		if($r['prio'] > 0 && isset($mttToIcalPrio[$r['prio']])) $a[] = "PRIORITY:". $mttToIcalPrio[$r['prio']];
-		$dda = explode('-', $r['duedate']);
-		$a[] = "DTSTART;VALUE=DATE:".sprintf("%u%02u%02u", $dda[0], $dda[1], $dda[2]);
-		$a[] = "DTEND;VALUE=DATE:".date('Ymd', mktime(1,1,1,$dda[1],$dda[2],$dda[0]) + 86400);
-		$descr = array();
-		if($r['tags'] != '') $descr[] = Lang::instance()->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
-		if($r['note'] != '') $descr[] = Lang::instance()->get('note'). ": ". $r['note'];
-		if($descr) $a[] = utf8chunks("DESCRIPTION:". str_replace("\n", '\\n', implode("\n",$descr)));
-		$a[] = "END:VEVENT\r\n";
-		$s .= implode("\r\n", $a);
-	}
-	$s .= "END:VCALENDAR\r\n";
-	header('Content-type: text/calendar; charset=utf-8');
-	header('Content-disposition: attachment; filename=list_'.(int)$listData['id'].'.ics');
-	print $s;
+        if($r['compl']) {
+            $a[] = "STATUS:COMPLETED"; #used in Sunbird
+            $a[] = "COMPLETED:". gmdate('Ymd\THis\Z', $r['d_completed']);
+            #$a[] = "PERCENT-COMPLETE:100"; #used in Sunbird
+        }
+        if($r['tags'] != '') $a[] = utf8chunks("X-MTT-TAGS:". $r['tags']);
+        $a[] = "END:VTODO\r\n";
+        $s .= implode("\r\n", $a);
+    }
+    # events
+    foreach($data as $r)
+    {
+        if(!$r['duedate'] || $r['compl']) continue;	# skip tasks completed and without duedate
+        $a = array();
+        $a[] = "BEGIN:VEVENT";
+        $a[] = "UID:_". $r['uuid'];	# do not duplicate VTODO UID
+        $a[] = "CREATED:". gmdate('Ymd\THis\Z', $r['d_created']);
+        $a[] = "DTSTAMP:". gmdate('Ymd\THis\Z', $r['d_edited']);
+        $a[] = "LAST-MODIFIED:". gmdate('Ymd\THis\Z', $r['d_edited']);
+        $a[] = utf8chunks("SUMMARY:". $r['title']);
+        if($r['prio'] > 0 && isset($mttToIcalPrio[$r['prio']])) $a[] = "PRIORITY:". $mttToIcalPrio[$r['prio']];
+        $dda = explode('-', $r['duedate']);
+        $a[] = "DTSTART;VALUE=DATE:".sprintf("%u%02u%02u", $dda[0], $dda[1], $dda[2]);
+        $a[] = "DTEND;VALUE=DATE:".date('Ymd', mktime(1,1,1,$dda[1],$dda[2],$dda[0]) + 86400);
+        $descr = array();
+        if($r['tags'] != '') $descr[] = Lang::instance()->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
+        if($r['note'] != '') $descr[] = Lang::instance()->get('note'). ": ". $r['note'];
+        if($descr) $a[] = utf8chunks("DESCRIPTION:". str_replace("\n", '\\n', implode("\n",$descr)));
+        $a[] = "END:VEVENT\r\n";
+        $s .= implode("\r\n", $a);
+    }
+    $s .= "END:VCALENDAR\r\n";
+    header('Content-type: text/calendar; charset=utf-8');
+    header('Content-disposition: attachment; filename=list_'.(int)$listData['id'].'.ics');
+    print $s;
 }
 
 function utf8chunks($text, $chunklen=75, $delimiter="\r\n\t")
 {
-	if($text == '') return '';
-	preg_match_all('/./u', $text, $m);
-	$chars = $m[0];
-	$a = array();
-	$s = '';
-	$max = count($chars);
-	for($i=0; $i<$max; $i++)
-	{
-		$ch = $chars[$i];
-		if(strlen($s) + strlen($ch) > $chunklen) { # line should be not more than $chunklen bytes
-			$a[] = $s;
-			$s = $ch;
-		}
-		else $s .= $ch;
-	}
-	if($s != '') $a[] = $s;
-	return implode($delimiter, $a);
+    if($text == '') return '';
+    preg_match_all('/./u', $text, $m);
+    $chars = $m[0];
+    $a = array();
+    $s = '';
+    $max = count($chars);
+    for($i=0; $i<$max; $i++)
+    {
+        $ch = $chars[$i];
+        if(strlen($s) + strlen($ch) > $chunklen) { # line should be not more than $chunklen bytes
+            $a[] = $s;
+            $s = $ch;
+        }
+        else $s .= $ch;
+    }
+    if($s != '') $a[] = $s;
+    return implode($delimiter, $a);
 }
 
 ?>
\ No newline at end of file
diff --git a/src/feed.php b/src/feed.php
index b74f298..74ae233 100644
--- a/src/feed.php
+++ b/src/feed.php
@@ -1,9 +1,9 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2011,2020-2021 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2011,2020-2021 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 $dontStartSession = 1;
@@ -16,10 +16,10 @@ $listId = (int)_get('list');
 
 $listData = $db->sqa("SELECT * FROM {$db->prefix}lists WHERE id=$listId");
 if (need_auth() && (!$listData || !$listData['published'])) {
-	die("Access denied!<br> List is not published.");
+    die("Access denied!<br> List is not published.");
 }
 if(!$listData) {
-	die("No list found");
+    die("No list found");
 }
 
 $data = array();
@@ -27,26 +27,26 @@ $feedType = _get('feed');
 
 if($feedType == 'completed') {
     $listData['_feed_descr'] = $lang->get('feed_completed_tasks');
-	fillData( $data, $listId, 'd_completed', 'AND compl=1' );
+    fillData( $data, $listId, 'd_completed', 'AND compl=1' );
 }
 elseif($feedType == 'modified') {
-	$listData['_feed_descr'] = $lang->get('feed_modified_tasks');
-	fillData( $data, $listId, 'd_edited', '' );
+    $listData['_feed_descr'] = $lang->get('feed_modified_tasks');
+    fillData( $data, $listId, 'd_edited', '' );
 }
 elseif($feedType == 'current') {
-	$listData['_feed_descr'] = $lang->get('feed_new_tasks');
-	fillData( $data, $listId, 'd_created', 'AND compl=0' );
+    $listData['_feed_descr'] = $lang->get('feed_new_tasks');
+    fillData( $data, $listId, 'd_created', 'AND compl=0' );
 }
 elseif($feedType == 'status') {
-	$listData['_feed_descr'] = $lang->get('feed_tasks');
-	fillData( $data, $listId, 'd_created', '' );
-	fillData( $data, $listId, 'd_edited', 'AND compl=0 AND d_edited > d_created' );
-	fillData( $data, $listId, 'd_completed', 'AND compl=1' );
+    $listData['_feed_descr'] = $lang->get('feed_tasks');
+    fillData( $data, $listId, 'd_created', '' );
+    fillData( $data, $listId, 'd_edited', 'AND compl=0 AND d_edited > d_created' );
+    fillData( $data, $listId, 'd_completed', 'AND compl=1' );
 }
 else {
-	$listData['_feed_descr'] = $lang->get('feed_new_tasks');
-	$feedType = 'tasks';
-	fillData( $data, $listId, 'd_created', '' );
+    $listData['_feed_descr'] = $lang->get('feed_new_tasks');
+    $feedType = 'tasks';
+    fillData( $data, $listId, 'd_created', '' );
 }
 
 $listData['_feed_title'] = sprintf($lang->get('feed_title'), $listData['name']) . ' - '. $listData['_feed_descr'];
@@ -59,86 +59,86 @@ printRss($data, $listData);
 
 function fillData(&$data, $listId, $field, $sqlWhere )
 {
-	$lang = Lang::instance();
-	$db = DBConnection::instance();
-	$q = $db->dq("SELECT * FROM {$db->prefix}todolist WHERE list_id=$listId $sqlWhere ORDER BY $field DESC LIMIT 100");
-	while ($r = $q->fetchAssoc())
-	{
-		if ($r['prio'] > 0) {
-			$r['prio'] = '+'.$r['prio'];
-		}
-		$a = array();
-		$a[] = $lang->get('task'). ": ". $r['title'];
-		if ($r['prio']) {
-			$a[] = $lang->get('priority'). ": $r[prio]";
-		}
-		if ($r['duedate'] != '') {
-			$ad = explode('-', $r['duedate']);
-			$a[] = $lang->get('due'). ": ".formatDate3(Config::get('dateformat'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang);
-		}
-		if ($r['tags'] != '') {
-			$a[] = $lang->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
-		}
-		if ($r['compl']) {
-			$a[] = $lang->get('taskdate_completed'). ": ". timestampToDatetime($r['d_completed']);
-		}
-		$r['title'] = htmlspecialchars( $r['title'] );
-		$r['note'] = noteMarkup($r['note'], true);
-		$r['_descr'] = implode("<br/>", htmlarray($a)). "<br/><br/>". $r['note'];
-		$r['_title'] = "#". (int)$r['id']. ": ". $r['title'];
-		$r['_d'] =  gmdate('r', $r[$field]);
-		$r['_field'] = $field;
-		$data[] = $r;
-	}
+    $lang = Lang::instance();
+    $db = DBConnection::instance();
+    $q = $db->dq("SELECT * FROM {$db->prefix}todolist WHERE list_id=$listId $sqlWhere ORDER BY $field DESC LIMIT 100");
+    while ($r = $q->fetchAssoc())
+    {
+        if ($r['prio'] > 0) {
+            $r['prio'] = '+'.$r['prio'];
+        }
+        $a = array();
+        $a[] = $lang->get('task'). ": ". $r['title'];
+        if ($r['prio']) {
+            $a[] = $lang->get('priority'). ": $r[prio]";
+        }
+        if ($r['duedate'] != '') {
+            $ad = explode('-', $r['duedate']);
+            $a[] = $lang->get('due'). ": ".formatDate3(Config::get('dateformat'), (int)$ad[0], (int)$ad[1], (int)$ad[2], $lang);
+        }
+        if ($r['tags'] != '') {
+            $a[] = $lang->get('tags'). ": ". str_replace(',', ', ', $r['tags']);
+        }
+        if ($r['compl']) {
+            $a[] = $lang->get('taskdate_completed'). ": ". timestampToDatetime($r['d_completed']);
+        }
+        $r['title'] = htmlspecialchars( $r['title'] );
+        $r['note'] = noteMarkup($r['note'], true);
+        $r['_descr'] = implode("<br/>", htmlarray($a)). "<br/><br/>". $r['note'];
+        $r['_title'] = "#". (int)$r['id']. ": ". $r['title'];
+        $r['_d'] =  gmdate('r', $r[$field]);
+        $r['_field'] = $field;
+        $data[] = $r;
+    }
 }
 
 function printRss($data, $listData)
 {
-	$lang = Lang::instance();
-	$link = get_mttinfo('url'). "?list=". (int)$listData['id'];
-	$buildDate = gmdate('r');
+    $lang = Lang::instance();
+    $link = get_mttinfo('url'). "?list=". (int)$listData['id'];
+    $buildDate = gmdate('r');
 
-	$s = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n".
-		"<rss version=\"2.0\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n".
-		"<channel>\n".
-		"<title>$listData[_feed_title]</title>\n".
-		"<link>$link</link>\n".
-		"<atom:link href=\"${listData['_feed_link']}\" rel=\"self\" type=\"application/rss+xml\"/>\n".
-		"<description>$listData[_feed_descr]</description>\n".
-		"<lastBuildDate>$buildDate</lastBuildDate>\n\n";
+    $s = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n".
+        "<rss version=\"2.0\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n".
+        "<channel>\n".
+        "<title>$listData[_feed_title]</title>\n".
+        "<link>$link</link>\n".
+        "<atom:link href=\"${listData['_feed_link']}\" rel=\"self\" type=\"application/rss+xml\"/>\n".
+        "<description>$listData[_feed_descr]</description>\n".
+        "<lastBuildDate>$buildDate</lastBuildDate>\n\n";
 
-	foreach($data as $v)
-	{
-		$guid = $listData['_feed_type']. '-'. $listData['id']. '-'. $v['id']. '-'. $v[$v['_field']];
-		$itemLink = $link. "&amp;task=". (int)$v['id'];
+    foreach($data as $v)
+    {
+        $guid = $listData['_feed_type']. '-'. $listData['id']. '-'. $v['id']. '-'. $v[$v['_field']];
+        $itemLink = $link. "&amp;task=". (int)$v['id'];
 
-		$status = '';
-		if ( $listData['_feed_type'] == 'status' ) {
-			if ( $v['_field'] == 'd_created' ) {
-				$status = $lang->get('feed_status_new');
-			}
-			elseif ( $v['_field'] == 'd_edited' ) {
-				$status = $lang->get('feed_status_updated');
-			}
-			elseif ( $v['_field'] == 'd_completed' ) {
-				$status = $lang->get('feed_status_completed');
-			}
-		}
-		if ( $status !='' ) $status = "[$status] ";
+        $status = '';
+        if ( $listData['_feed_type'] == 'status' ) {
+            if ( $v['_field'] == 'd_created' ) {
+                $status = $lang->get('feed_status_new');
+            }
+            elseif ( $v['_field'] == 'd_edited' ) {
+                $status = $lang->get('feed_status_updated');
+            }
+            elseif ( $v['_field'] == 'd_completed' ) {
+                $status = $lang->get('feed_status_completed');
+            }
+        }
+        if ( $status !='' ) $status = "[$status] ";
 
-		$s .= "<item>\n".
-			"<title>". $status. $v['title']. "</title>\n".
-			"<link>". $itemLink. "</link>\n".
-			"<pubDate>". $v['_d']. "</pubDate>\n".
-			"<description><![CDATA[". $v['_descr']. "]]></description>\n".
-			"<guid isPermaLink=\"false\">$guid</guid>\n".
-			"</item>\n\n";
-	}
+        $s .= "<item>\n".
+            "<title>". $status. $v['title']. "</title>\n".
+            "<link>". $itemLink. "</link>\n".
+            "<pubDate>". $v['_d']. "</pubDate>\n".
+            "<description><![CDATA[". $v['_descr']. "]]></description>\n".
+            "<guid isPermaLink=\"false\">$guid</guid>\n".
+            "</item>\n\n";
+    }
 
-	$s .= "</channel>\n</rss>";
+    $s .= "</channel>\n</rss>";
 
-	header("Content-type: text/xml; charset=utf-8");
-	print $s;
+    header("Content-type: text/xml; charset=utf-8");
+    print $s;
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/class.config.php b/src/includes/class.config.php
index 519a227..f21ec54 100644
--- a/src/includes/class.config.php
+++ b/src/includes/class.config.php
@@ -1,309 +1,309 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 class Config
 {
-	/** @var bool */
-	public static $noDatabase = false;
+    /** @var bool */
+    public static $noDatabase = false;
 
-	/** @var array[] */
-	private static $dbparams = array(
-		# Database type: sqlite or mysql
-		'db.type'      => array('default'=>'sqlite', 'type'=>'s'),
+    /** @var array[] */
+    private static $dbparams = array(
+        # Database type: sqlite or mysql
+        'db.type'      => array('default'=>'sqlite', 'type'=>'s'),
 
-		# Specific database api
-		'db.driver'    => array('default'=>'', 'type'=>'s'),
+        # Specific database api
+        'db.driver'    => array('default'=>'', 'type'=>'s'),
 
-		# Mysql connection settings
-		'db.host'     => array('default'=>'localhost',  'type'=>'s'),
-		'db.user'     => array('default'=>'mtt',        'type'=>'s'),
-		'db.password' => array('default'=>'mtt',        'type'=>'s'),
-		'db.name'     => array('default'=>'mytinytodo', 'type'=>'s'),
+        # Mysql connection settings
+        'db.host'     => array('default'=>'localhost',  'type'=>'s'),
+        'db.user'     => array('default'=>'mtt',        'type'=>'s'),
+        'db.password' => array('default'=>'mtt',        'type'=>'s'),
+        'db.name'     => array('default'=>'mytinytodo', 'type'=>'s'),
 
-		# Prefix for table names
-		'db.prefix'   => array('default'=>'', 'type'=>'s')
-	);
+        # Prefix for table names
+        'db.prefix'   => array('default'=>'', 'type'=>'s')
+    );
 
-	/** @var array[] */
-	private static $convert = array(
-		'mysql.host' => 'db.host',
-		'mysql.user' => 'db.user',
-		'mysql.password' => 'db.password',
-		'mysql.db' => 'db.name',
-		'db' => 'db.type',
-		'prefix' => 'db.prefix'
-	);
+    /** @var array[] */
+    private static $convert = array(
+        'mysql.host' => 'db.host',
+        'mysql.user' => 'db.user',
+        'mysql.password' => 'db.password',
+        'mysql.db' => 'db.name',
+        'db' => 'db.type',
+        'prefix' => 'db.prefix'
+    );
 
-	/** @var array[] */
-	public static $params = array(
-		# These two parameters are used when mytinytodo index.php called not from installation directory
-		# 'url' - URL where index.php is called from (ex.: http://site.com/todo.php)
-		# 'mtt_url' - directory URL where mytinytodo is installed (with trailing slash) (ex.: http://site.com/lib/mytinytodo/)
-		'url' => array('default'=>'', 'type'=>'s'),
-		'mtt_url' => array('default'=>'', 'type'=>'s'),
+    /** @var array[] */
+    public static $params = array(
+        # These two parameters are used when mytinytodo index.php called not from installation directory
+        # 'url' - URL where index.php is called from (ex.: http://site.com/todo.php)
+        # 'mtt_url' - directory URL where mytinytodo is installed (with trailing slash) (ex.: http://site.com/lib/mytinytodo/)
+        'url' => array('default'=>'', 'type'=>'s'),
+        'mtt_url' => array('default'=>'', 'type'=>'s'),
 
-		# Top title
-		'title' => array('default'=>'', 'type'=>'s'),
+        # Top title
+        'title' => array('default'=>'', 'type'=>'s'),
 
-		# Language pack
-		'lang' => array('default'=>'en', 'type'=>'s'),
+        # Language pack
+        'lang' => array('default'=>'en', 'type'=>'s'),
 
-		# Password to protect your tasks from modification,
-		# leave empty that everyone could read/write todolist
-		'password' => array('default'=>'', 'type'=>'s'),
+        # Password to protect your tasks from modification,
+        # leave empty that everyone could read/write todolist
+        'password' => array('default'=>'', 'type'=>'s'),
 
-		# Smart Syntax enabled flag
-		'smartsyntax' => array('default'=>1, 'type'=>'i'),
+        # Smart Syntax enabled flag
+        'smartsyntax' => array('default'=>1, 'type'=>'i'),
 
-		# Default Time zone
-		'timezone' => array('default'=>'UTC', 'type'=>'s'),
+        # Default Time zone
+        'timezone' => array('default'=>'UTC', 'type'=>'s'),
 
-		# To disable auto adding selected tag set value to 0
-		'autotag' => array('default'=>1, 'type'=>'i'),
+        # To disable auto adding selected tag set value to 0
+        'autotag' => array('default'=>1, 'type'=>'i'),
 
-		# duedate calendar format: 1 => y-m-d (default), 2 => m/d/y, 3 => d.m.y
-		'duedateformat' => array('default'=>1, 'type'=>'i'),
+        # duedate calendar format: 1 => y-m-d (default), 2 => m/d/y, 3 => d.m.y
+        'duedateformat' => array('default'=>1, 'type'=>'i'),
 
-		# First day of week: 0-Sunday, 1-Monday, 2-Tuesday, .. 6-Saturday
-		'firstdayofweek' => array('default'=>1, 'type'=>'i', 'options'=>array(0,1,2,3,4,5,6)),
+        # First day of week: 0-Sunday, 1-Monday, 2-Tuesday, .. 6-Saturday
+        'firstdayofweek' => array('default'=>1, 'type'=>'i', 'options'=>array(0,1,2,3,4,5,6)),
 
-		# Date/time formats
-		'clock' => array('default'=>24, 'type'=>'i', 'options'=>array(12,24)),
-		'dateformat' => array('default'=>'j M Y', 'type'=>'s'),
-		'dateformat2' => array('default'=>'n/j/y', 'type'=>'s'),
-		'dateformatshort' => array('default'=>'j M', 'type'=>'s'),
-		'template' => array('default'=>'default', 'type'=>'s'),
+        # Date/time formats
+        'clock' => array('default'=>24, 'type'=>'i', 'options'=>array(12,24)),
+        'dateformat' => array('default'=>'j M Y', 'type'=>'s'),
+        'dateformat2' => array('default'=>'n/j/y', 'type'=>'s'),
+        'dateformatshort' => array('default'=>'j M', 'type'=>'s'),
+        'template' => array('default'=>'default', 'type'=>'s'),
 
-		# Show task date in list
-		'showdate' => array('default'=>0, 'type'=>'i'),
+        # Show task date in list
+        'showdate' => array('default'=>0, 'type'=>'i'),
 
-		# Use Markdown syntax for notes. Set to 'v1' to use old v1.6 syntax.
-		'markup' => array('default'=>'markdown', 'type'=>'s'),
-	);
+        # Use Markdown syntax for notes. Set to 'v1' to use old v1.6 syntax.
+        'markup' => array('default'=>'markdown', 'type'=>'s'),
+    );
 
-	/** @var mixed[] */
-	private static $config = array();
+    /** @var mixed[] */
+    private static $config = array();
 
 
-	/**
-	 *
-	 * @param mixed[] $config
-	 * @return void
-	 */
-	public static function loadConfigV14(array $config)
-	{
-		foreach ($config as $key => $val) {
-			if (isset(self::$convert[$key])) {
-				$key = self::$convert[$key];
-			}
-			elseif ($key == 'mysqli' && (int)$val != 0) {
-				$key = 'db.driver';
-				$val = 'mysqli';
-			}
-			elseif ($key == 'password' && $val != '') {
-				$val = passwordHash($val); // in v1.7 password is hashed
-			}
-			// if (!isset(self::$dbparams[$key])) {
-			// 	throw new Exception("Unknown key: $key");
-			// }
-			self::$config[$key] = $val;
-		}
-	}
+    /**
+     *
+     * @param mixed[] $config
+     * @return void
+     */
+    public static function loadConfigV14(array $config)
+    {
+        foreach ($config as $key => $val) {
+            if (isset(self::$convert[$key])) {
+                $key = self::$convert[$key];
+            }
+            elseif ($key == 'mysqli' && (int)$val != 0) {
+                $key = 'db.driver';
+                $val = 'mysqli';
+            }
+            elseif ($key == 'password' && $val != '') {
+                $val = passwordHash($val); // in v1.7 password is hashed
+            }
+            // if (!isset(self::$dbparams[$key])) {
+            // 	throw new Exception("Unknown key: $key");
+            // }
+            self::$config[$key] = $val;
+        }
+    }
 
-	/**
-	 *
-	 * @return void
-	 * @throws Exception
-	 */
-	public static function load()
-	{
-		if (self::$noDatabase) {
-			return;
-		}
-		$j = self::requestDefaultDomain();
-		foreach ($j as $key=>$val) {
-			// Ignore params for database config
-			if ( !isset(self::$dbparams[$key]) ) {
-				self::$config[$key] = $val;
-			}
-		}
-	}
+    /**
+     *
+     * @return void
+     * @throws Exception
+     */
+    public static function load()
+    {
+        if (self::$noDatabase) {
+            return;
+        }
+        $j = self::requestDefaultDomain();
+        foreach ($j as $key=>$val) {
+            // Ignore params for database config
+            if ( !isset(self::$dbparams[$key]) ) {
+                self::$config[$key] = $val;
+            }
+        }
+    }
 
-	/**
-	 *
-	 * @param string $key
-	 * @return mixed
-	 */
-	public static function get($key)
-	{
-		if (isset(self::$config[$key])) return self::$config[$key];
-		elseif (isset(self::$params[$key])) return self::$params[$key]['default'];
-		elseif (isset(self::$dbparams[$key])) return self::$dbparams[$key]['default'];
-		else return null;
-	}
+    /**
+     *
+     * @param string $key
+     * @return mixed
+     */
+    public static function get($key)
+    {
+        if (isset(self::$config[$key])) return self::$config[$key];
+        elseif (isset(self::$params[$key])) return self::$params[$key]['default'];
+        elseif (isset(self::$dbparams[$key])) return self::$dbparams[$key]['default'];
+        else return null;
+    }
 
-	/**
-	 *
-	 * @param string $key
-	 * @return string|null
-	 */
-	public static function getUrl($key)
-	{
-		$url = '';
-		if ( isset(self::$config[$key]) ) $url = self::$config[$key];
-		else if( isset(self::$params[$key]) ) $url = self::$params[$key]['default'];
-		else return null;
-		return str_replace( ["\r","\n"], '', $url );
-	}
+    /**
+     *
+     * @param string $key
+     * @return string|null
+     */
+    public static function getUrl($key)
+    {
+        $url = '';
+        if ( isset(self::$config[$key]) ) $url = self::$config[$key];
+        else if( isset(self::$params[$key]) ) $url = self::$params[$key]['default'];
+        else return null;
+        return str_replace( ["\r","\n"], '', $url );
+    }
 
-	/**
-	 *
-	 * @param string $key
-	 * @param mixed $value
-	 * @return void
-	 * @throws Exception
-	 */
-	public static function set($key, $value)
-	{
-		if ($key == "db.prefix" && $value != "" && !preg_match("/^[a-zA-Z0-9_]+$/", $value)) {
-			throw new Exception("Incorrect table prefix. Can contain only latin letters, digits and underscore character.");
-		}
-		self::$config[$key] = $value;
-	}
+    /**
+     *
+     * @param string $key
+     * @param mixed $value
+     * @return void
+     * @throws Exception
+     */
+    public static function set($key, $value)
+    {
+        if ($key == "db.prefix" && $value != "" && !preg_match("/^[a-zA-Z0-9_]+$/", $value)) {
+            throw new Exception("Incorrect table prefix. Can contain only latin letters, digits and underscore character.");
+        }
+        self::$config[$key] = $value;
+    }
 
 
-	/**
-	 *
-	 * @return void
-	 * @throws Exception
-	 */
-	public static function save()
-	{
-		$j = array();
-		foreach (self::$params as $param => $v)
-		{
-			if ( !isset(self::$config[$param]) ) $val = $v['default'];
-			elseif ( isset($v['options']) && !in_array(self::$config[$param], $v['options'])) $val = $v['default'];
-			else $val = self::$config[$param];
+    /**
+     *
+     * @return void
+     * @throws Exception
+     */
+    public static function save()
+    {
+        $j = array();
+        foreach (self::$params as $param => $v)
+        {
+            if ( !isset(self::$config[$param]) ) $val = $v['default'];
+            elseif ( isset($v['options']) && !in_array(self::$config[$param], $v['options'])) $val = $v['default'];
+            else $val = self::$config[$param];
 
-			if ($v['type']=='i') $val = (int)$val;
-			else $val = strval($val);
+            if ($v['type']=='i') $val = (int)$val;
+            else $val = strval($val);
 
-			$j[$param] = $val;
-		}
-		self::saveDomain('config.json', $j);
-	}
+            $j[$param] = $val;
+        }
+        self::saveDomain('config.json', $j);
+    }
 
-	/**
-	 *
-	 * @param string $key
-	 * @return array
-	 * @throws Exception
-	 */
-	public static function requestDomain(string $key)
-	{
-		$db = DBConnection::instance();
-		$json = $db->sq("SELECT param_value FROM {$db->prefix}settings WHERE param_key = ?", array($key));
-		if (!$json) return array();
-		$j = json_decode($json, true);
-		return $j;
-	}
+    /**
+     *
+     * @param string $key
+     * @return array
+     * @throws Exception
+     */
+    public static function requestDomain(string $key)
+    {
+        $db = DBConnection::instance();
+        $json = $db->sq("SELECT param_value FROM {$db->prefix}settings WHERE param_key = ?", array($key));
+        if (!$json) return array();
+        $j = json_decode($json, true);
+        return $j;
+    }
 
 
-	/**
-	 *
-	 * @return array
-	 * @throws Exception
-	 */
-	public static function requestDefaultDomain()
-	{
-		return self::requestDomain('config.json');
-	}
+    /**
+     *
+     * @return array
+     * @throws Exception
+     */
+    public static function requestDefaultDomain()
+    {
+        return self::requestDomain('config.json');
+    }
 
 
-	/**
-	 *
-	 * @param string $key
-	 * @param array $array
-	 * @return void
-	 * @throws Exception
-	 */
-	public static function saveDomain($key, $array)
-	{
-		$json = json_encode($array, JSON_PRETTY_PRINT);
-		$db = DBConnection::instance();
-		$keyExists = $db->sq("SELECT COUNT(param_key) FROM {$db->prefix}settings WHERE param_key = ?", array($key) );
-		if ($keyExists) {
-			$db->ex("UPDATE {$db->prefix}settings SET param_value = ? WHERE param_key = ?", array($json,$key) );
-		}
-		else {
-			$db->ex("INSERT INTO {$db->prefix}settings (param_key,param_value) VALUES (?,?)", array($key,$json) );
-		}
-	}
+    /**
+     *
+     * @param string $key
+     * @param array $array
+     * @return void
+     * @throws Exception
+     */
+    public static function saveDomain($key, $array)
+    {
+        $json = json_encode($array, JSON_PRETTY_PRINT);
+        $db = DBConnection::instance();
+        $keyExists = $db->sq("SELECT COUNT(param_key) FROM {$db->prefix}settings WHERE param_key = ?", array($key) );
+        if ($keyExists) {
+            $db->ex("UPDATE {$db->prefix}settings SET param_value = ? WHERE param_key = ?", array($json,$key) );
+        }
+        else {
+            $db->ex("INSERT INTO {$db->prefix}settings (param_key,param_value) VALUES (?,?)", array($key,$json) );
+        }
+    }
 
-	public static function defineDbConstants()
-	{
-		define("MTT_DB_TYPE", self::get('db.type'));
-		define("MTT_DB_HOST", self::get('db.host'));
-		define("MTT_DB_USER", self::get('db.user'));
-		define("MTT_DB_PASSWORD", self::get('db.password'));
-		define("MTT_DB_NAME", self::get('db.name'));
-		define("MTT_DB_PREFIX", self::get('db.prefix'));
-		if ( self::get('db.driver') != '' ) {
-			define("MTT_DB_DRIVER", self::get('db.driver'));
-		}
-	}
+    public static function defineDbConstants()
+    {
+        define("MTT_DB_TYPE", self::get('db.type'));
+        define("MTT_DB_HOST", self::get('db.host'));
+        define("MTT_DB_USER", self::get('db.user'));
+        define("MTT_DB_PASSWORD", self::get('db.password'));
+        define("MTT_DB_NAME", self::get('db.name'));
+        define("MTT_DB_PREFIX", self::get('db.prefix'));
+        if ( self::get('db.driver') != '' ) {
+            define("MTT_DB_DRIVER", self::get('db.driver'));
+        }
+    }
 
-	public static function dbConfigAsFileContents(): string
-	{
-		$a = array();
-		$a[] = "<?php\n";
-		$a[] = "// myTinyTodo Database connection configuration\n";
-		$a[] = self::prepareDbDefine("MTT_DB_TYPE", self::get('db.type')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_HOST", self::get('db.host')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_USER", self::get('db.user')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_PASSWORD", self::get('db.password')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_NAME", self::get('db.name')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_PREFIX", self::get('db.prefix')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_DB_DRIVER", self::get('db.driver')) . "\n";
-		$a[] = self::prepareDbDefine("MTT_SALT", defined('MTT_SALT') ? MTT_SALT : generateUUID()) . "\n";
-		return implode("\n", $a);
-	}
+    public static function dbConfigAsFileContents(): string
+    {
+        $a = array();
+        $a[] = "<?php\n";
+        $a[] = "// myTinyTodo Database connection configuration\n";
+        $a[] = self::prepareDbDefine("MTT_DB_TYPE", self::get('db.type')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_HOST", self::get('db.host')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_USER", self::get('db.user')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_PASSWORD", self::get('db.password')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_NAME", self::get('db.name')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_PREFIX", self::get('db.prefix')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_DB_DRIVER", self::get('db.driver')) . "\n";
+        $a[] = self::prepareDbDefine("MTT_SALT", defined('MTT_SALT') ? MTT_SALT : generateUUID()) . "\n";
+        return implode("\n", $a);
+    }
 
-	private static function prepareDbDefine(string $key, string $value): string
-	{
-		if (!preg_match("/^[a-zA-Z0-9_]+$/", $key)) {
-			throw new Exception("Unexpected constant name: ". $key);
-		}
-		if (preg_match('~\R~', $value)) {
-			throw new Exception("Unexpected constant value: ". $value);
-		}
-		return "define(\"$key\", \"". str_replace(
-												array("\\",   "'",   "\""),
-												array("\\\\", "\\'", "\\\""),
-												$value )
-									. "\");";
-	}
+    private static function prepareDbDefine(string $key, string $value): string
+    {
+        if (!preg_match("/^[a-zA-Z0-9_]+$/", $key)) {
+            throw new Exception("Unexpected constant name: ". $key);
+        }
+        if (preg_match('~\R~', $value)) {
+            throw new Exception("Unexpected constant value: ". $value);
+        }
+        return "define(\"$key\", \"". str_replace(
+                                                array("\\",   "'",   "\""),
+                                                array("\\\\", "\\'", "\\\""),
+                                                $value )
+                                    . "\");";
+    }
 
-	public static function saveDbConfig()
-	{
-		$contents = self::dbConfigAsFileContents();
-		$f = fopen(MTTPATH. 'config.php', 'w');
-		if ($f === false) throw new Exception("Error while saving config file");
-		fwrite($f, $contents);
-		fclose($f);
+    public static function saveDbConfig()
+    {
+        $contents = self::dbConfigAsFileContents();
+        $f = fopen(MTTPATH. 'config.php', 'w');
+        if ($f === false) throw new Exception("Error while saving config file");
+        fwrite($f, $contents);
+        fclose($f);
 
-		//Reset Zend OPcache
-		//opcache_get_status() sometimes crashes
-		if (function_exists("opcache_invalidate") && 0 != (int)opcache_get_configuration()["directives"]["opcache.enable"]) {
-			opcache_invalidate(MTTPATH. 'config.php', true);
-		}
-	}
+        //Reset Zend OPcache
+        //opcache_get_status() sometimes crashes
+        if (function_exists("opcache_invalidate") && 0 != (int)opcache_get_configuration()["directives"]["opcache.enable"]) {
+            opcache_invalidate(MTTPATH. 'config.php', true);
+        }
+    }
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/class.db.mysql.php b/src/includes/class.db.mysql.php
index 555a47e..0eecc79 100644
--- a/src/includes/class.db.mysql.php
+++ b/src/includes/class.db.mysql.php
@@ -1,192 +1,192 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 // ---------------------------------------------------------------------------- //
 class DatabaseResult_Mysql extends DatabaseResult_Abstract
 {
-	/** @var PDOStatement */
-	private $q;
+    /** @var PDOStatement */
+    private $q;
 
-	private $affected;
+    private $affected;
 
-	function __construct($dbh, $query, $resultless = 0)
-	{
-		// use with DELETE, INSERT, UPDATE
-		if ($resultless)
-		{
-			$this->affected = $dbh->exec($query); //throws PDOException
-		}
-		// SELECT
-		else
-		{
-			$this->q = $dbh->query($query); //throws PDOException
-			$this->affected = $this->q->rowCount();
-		}
-	}
+    function __construct($dbh, $query, $resultless = 0)
+    {
+        // use with DELETE, INSERT, UPDATE
+        if ($resultless)
+        {
+            $this->affected = $dbh->exec($query); //throws PDOException
+        }
+        // SELECT
+        else
+        {
+            $this->q = $dbh->query($query); //throws PDOException
+            $this->affected = $this->q->rowCount();
+        }
+    }
 
-	function fetchRow()
-	{
-		return $this->q->fetch(PDO::FETCH_NUM);
-	}
+    function fetchRow()
+    {
+        return $this->q->fetch(PDO::FETCH_NUM);
+    }
 
-	function fetchAssoc()
-	{
-		return $this->q->fetch(PDO::FETCH_ASSOC);
-	}
+    function fetchAssoc()
+    {
+        return $this->q->fetch(PDO::FETCH_ASSOC);
+    }
 
-	function rowsAffected()
-	{
-		return $this->affected;
-	}
+    function rowsAffected()
+    {
+        return $this->affected;
+    }
 }
 
 // ---------------------------------------------------------------------------- //
 class Database_Mysql extends Database_Abstract
 {
-	/** @var PDO */
-	private $dbh;
+    /** @var PDO */
+    private $dbh;
 
-	private $affected = null;
-	var $lastQuery;
-	private $dbname;
-	var $prefix = '';
+    private $affected = null;
+    var $lastQuery;
+    private $dbname;
+    var $prefix = '';
 
-	function __construct()
-	{
-	}
+    function __construct()
+    {
+    }
 
-	function connect($params)
-	{
-		$host = $params['host'];
-		$user = $params['user'];
-		$pass = $params['password'];
-		$db = $params['db'];
-		$options = array(
-			PDO::MYSQL_ATTR_FOUND_ROWS => true,
-			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
-		);
-		$this->dbname = $db;
+    function connect($params)
+    {
+        $host = $params['host'];
+        $user = $params['user'];
+        $pass = $params['password'];
+        $db = $params['db'];
+        $options = array(
+            PDO::MYSQL_ATTR_FOUND_ROWS => true,
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
+        );
+        $this->dbname = $db;
 
-		$this->dbh = new PDO("mysql:host=$host;dbname=$db", $user, $pass, $options);
-		return true;
-	}
+        $this->dbh = new PDO("mysql:host=$host;dbname=$db", $user, $pass, $options);
+        return true;
+    }
 
 
 
-	/*
-		Returns single row of SELECT query as indexed array (FETCH_NUM).
-		Returns single field value if resulting array has only one field.
-	*/
-	function sq($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    /*
+        Returns single row of SELECT query as indexed array (FETCH_NUM).
+        Returns single field value if resulting array has only one field.
+    */
+    function sq($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchRow();
-		if ($res === false) return NULL;
+        $res = $q->fetchRow();
+        if ($res === false) return NULL;
 
-		if (sizeof($res) > 1) return $res;
-		else return $res[0];
-	}
+        if (sizeof($res) > 1) return $res;
+        else return $res[0];
+    }
 
-	/*
-		Returns single row of SELECT query as dictionary array (FETCH_ASSOC).
-		Returns single field value if resulting array has only one field.
-	*/
-	function sqa($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    /*
+        Returns single row of SELECT query as dictionary array (FETCH_ASSOC).
+        Returns single field value if resulting array has only one field.
+    */
+    function sqa($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchAssoc();
-		if ($res === false) return NULL;
+        $res = $q->fetchAssoc();
+        if ($res === false) return NULL;
 
-		if (sizeof($res) > 1) return $res;
-		else return $res[0];
-	}
+        if (sizeof($res) > 1) return $res;
+        else return $res[0];
+    }
 
-	function dq($query, $p = NULL) : DatabaseResult_Abstract
-	{
-		return $this->_dq($query, $p);
-	}
+    function dq($query, $p = NULL) : DatabaseResult_Abstract
+    {
+        return $this->_dq($query, $p);
+    }
 
-	/*
-		for resultless queries like INSERT,UPDATE,DELETE
-	*/
-	function ex($query, $p = NULL)
-	{
-		$dbr = $this->_dq($query, $p, true);
-		return $this->affected();
-	}
+    /*
+        for resultless queries like INSERT,UPDATE,DELETE
+    */
+    function ex($query, $p = NULL)
+    {
+        $dbr = $this->_dq($query, $p, true);
+        return $this->affected();
+    }
 
-	private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
-	{
-		if (!isset($p)) $p = array();
-		elseif (!is_array($p)) $p = array($p);
+    private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
+    {
+        if (!isset($p)) $p = array();
+        elseif (!is_array($p)) $p = array($p);
 
-		$m = explode('?', $query);
+        $m = explode('?', $query);
 
-		if (sizeof($p) > 0)
-		{
-			if (sizeof($m) < sizeof($p)+1) {
-				throw new Exception("params to set MORE than query params");
-			}
-			if (sizeof($m) > sizeof($p)+1) {
-				throw new Exception("params to set LESS than query params");
-			}
-			$query = "";
-			for ($i=0; $i<sizeof($m)-1; $i++) {
-				$query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
-			}
-			$query .= $m[$i];
-		}
-		$this->lastQuery = $query;
-		$dbr = new DatabaseResult_Mysql($this->dbh, $query, $resultless);
-		$this->affected = $dbr->rowsAffected();
-		return $dbr;
-	}
+        if (sizeof($p) > 0)
+        {
+            if (sizeof($m) < sizeof($p)+1) {
+                throw new Exception("params to set MORE than query params");
+            }
+            if (sizeof($m) > sizeof($p)+1) {
+                throw new Exception("params to set LESS than query params");
+            }
+            $query = "";
+            for ($i=0; $i<sizeof($m)-1; $i++) {
+                $query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
+            }
+            $query .= $m[$i];
+        }
+        $this->lastQuery = $query;
+        $dbr = new DatabaseResult_Mysql($this->dbh, $query, $resultless);
+        $this->affected = $dbr->rowsAffected();
+        return $dbr;
+    }
 
-	function affected()
-	{
-		return $this->affected;
-	}
+    function affected()
+    {
+        return $this->affected;
+    }
 
-	function quote($s)
-	{
-		return '\''. addslashes($s). '\'';
-	}
+    function quote($s)
+    {
+        return '\''. addslashes($s). '\'';
+    }
 
-	function quoteForLike($format, $s)
-	{
-		$s = str_replace(array('%','_'), array('\%','\_'), addslashes($s));
-		return '\''. sprintf($format, $s). '\'';
-	}
+    function quoteForLike($format, $s)
+    {
+        $s = str_replace(array('%','_'), array('\%','\_'), addslashes($s));
+        return '\''. sprintf($format, $s). '\'';
+    }
 
-	function lastInsertId($name = null)
-	{
-		return $this->dbh->lastInsertId();
-	}
+    function lastInsertId($name = null)
+    {
+        return $this->dbh->lastInsertId();
+    }
 
-	function tableExists($table)
-	{
-		$r = $this->sq("SELECT 1 FROM information_schema.tables WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?",
-						array($this->dbname, $table) );
-		if ($r === false || $r === null) return false;
-		return true;
-	}
+    function tableExists($table)
+    {
+        $r = $this->sq("SELECT 1 FROM information_schema.tables WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?",
+                        array($this->dbname, $table) );
+        if ($r === false || $r === null) return false;
+        return true;
+    }
 
-	function tableFieldExists($table, $field): bool
-	{
-		$table = str_replace('`', '\\`', addslashes($table));
-		$q = $this->dq("DESCRIBE `$table`");
-		while ($r = $q->fetchRow()) {
-			if ($r[0] == $field) return true;
-		}
-		return false;
-	}
+    function tableFieldExists($table, $field): bool
+    {
+        $table = str_replace('`', '\\`', addslashes($table));
+        $q = $this->dq("DESCRIBE `$table`");
+        while ($r = $q->fetchRow()) {
+            if ($r[0] == $field) return true;
+        }
+        return false;
+    }
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/class.db.mysqli.php b/src/includes/class.db.mysqli.php
index 8a5d456..25e9728 100644
--- a/src/includes/class.db.mysqli.php
+++ b/src/includes/class.db.mysqli.php
@@ -1,157 +1,157 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 // ---------------------------------------------------------------------------- //
 class DatabaseResult_Mysql extends DatabaseResult_Abstract
 {
-	/** @var mysqli_result */
-	private $q;
+    /** @var mysqli_result */
+    private $q;
 
-	function __construct(mysqli $dbh, $query, $resultless = 0)
-	{
-		$this->q = $dbh->query($query); //throws mysqli_sql_exception
-	}
+    function __construct(mysqli $dbh, $query, $resultless = 0)
+    {
+        $this->q = $dbh->query($query); //throws mysqli_sql_exception
+    }
 
-	function fetchRow()
-	{
-		return $this->q->fetch_row();
-	}
+    function fetchRow()
+    {
+        return $this->q->fetch_row();
+    }
 
-	function fetchAssoc()
-	{
-		return $this->q->fetch_assoc();
-	}
+    function fetchAssoc()
+    {
+        return $this->q->fetch_assoc();
+    }
 }
 
 // ---------------------------------------------------------------------------- //
 class Database_Mysql extends Database_Abstract
 {
-	/** @var mysqli */
-	private $dbh;
+    /** @var mysqli */
+    private $dbh;
 
-	private $dbname;
-	var $prefix = '';
+    private $dbname;
+    var $prefix = '';
 
-	function __construct()
-	{
-		// enable throwing exceptions
-		mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
-	}
+    function __construct()
+    {
+        // enable throwing exceptions
+        mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+    }
 
-	function connect($params)
-	{
-		$host = $params['host'];
-		$user = $params['user'];
-		$pass = $params['password'];
-		$db = $params['db'];
-		$this->dbname = $db;
-		$this->dbh = new mysqli($host, $user, $pass, $db); //throws mysqli_sql_exception
-		return true;
-	}
+    function connect($params)
+    {
+        $host = $params['host'];
+        $user = $params['user'];
+        $pass = $params['password'];
+        $db = $params['db'];
+        $this->dbname = $db;
+        $this->dbh = new mysqli($host, $user, $pass, $db); //throws mysqli_sql_exception
+        return true;
+    }
 
-	function lastInsertId($name = null)
-	{
-		return $this->dbh->insert_id;
-	}
+    function lastInsertId($name = null)
+    {
+        return $this->dbh->insert_id;
+    }
 
-	function sq($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    function sq($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchRow();
-		if ($res === false || $res === null) return NULL;
+        $res = $q->fetchRow();
+        if ($res === false || $res === null) return NULL;
 
-		if (sizeof($res) > 1) return $res;
-		else return $res[0];
-	}
+        if (sizeof($res) > 1) return $res;
+        else return $res[0];
+    }
 
-	function sqa($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    function sqa($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchAssoc();
-		if ($res === false || $res === null) return NULL;
+        $res = $q->fetchAssoc();
+        if ($res === false || $res === null) return NULL;
 
-		return $res;
-	}
+        return $res;
+    }
 
-	function dq($query, $p = NULL) : DatabaseResult_Abstract
-	{
-		return $this->_dq($query, $p);
-	}
+    function dq($query, $p = NULL) : DatabaseResult_Abstract
+    {
+        return $this->_dq($query, $p);
+    }
 
-	/*
-		for resultless queries like INSERT,UPDATE,DELETE
-	*/
-	function ex($query, $p = NULL)
-	{
-		$dbr = $this->_dq($query, $p, 1);
-		return $this->affected();
-	}
+    /*
+        for resultless queries like INSERT,UPDATE,DELETE
+    */
+    function ex($query, $p = NULL)
+    {
+        $dbr = $this->_dq($query, $p, 1);
+        return $this->affected();
+    }
 
-	private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
-	{
-		if (!isset($p)) $p = array();
-		elseif (!is_array($p)) $p = array($p);
+    private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
+    {
+        if (!isset($p)) $p = array();
+        elseif (!is_array($p)) $p = array($p);
 
-		$m = explode('?', $query);
+        $m = explode('?', $query);
 
-		if (sizeof($p) > 0)
-		{
-			if (sizeof($m) < sizeof($p)+1) {
-				throw new Exception("params to set MORE than query params");
-			}
-			if (sizeof($m) > sizeof($p)+1) {
-				throw new Exception("params to set LESS than query params");
-			}
-			$query = "";
-			for ($i=0; $i < sizeof($m)-1; $i++) {
-				$query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
-			}
-			$query .= $m[$i];
-		}
-		$this->lastQuery = $query;
-		return new DatabaseResult_Mysql($this->dbh, $query, $resultless);
-	}
+        if (sizeof($p) > 0)
+        {
+            if (sizeof($m) < sizeof($p)+1) {
+                throw new Exception("params to set MORE than query params");
+            }
+            if (sizeof($m) > sizeof($p)+1) {
+                throw new Exception("params to set LESS than query params");
+            }
+            $query = "";
+            for ($i=0; $i < sizeof($m)-1; $i++) {
+                $query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
+            }
+            $query .= $m[$i];
+        }
+        $this->lastQuery = $query;
+        return new DatabaseResult_Mysql($this->dbh, $query, $resultless);
+    }
 
-	function affected()
-	{
-		return $this->dbh->affected_rows;
-	}
+    function affected()
+    {
+        return $this->dbh->affected_rows;
+    }
 
-	function quote($s)
-	{
-		return '\''. addslashes($s). '\'';
-	}
+    function quote($s)
+    {
+        return '\''. addslashes($s). '\'';
+    }
 
-	function quoteForLike($format, $s)
-	{
-		$s = str_replace(array('%','_'), array('\%','\_'), addslashes($s));
-		return '\''. sprintf($format, $s). '\'';
-	}
+    function quoteForLike($format, $s)
+    {
+        $s = str_replace(array('%','_'), array('\%','\_'), addslashes($s));
+        return '\''. sprintf($format, $s). '\'';
+    }
 
-	function tableExists($table)
-	{
-		$r = $this->sq("SELECT 1 FROM information_schema.tables WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?",
-						array($this->dbname, $table) );
-		if ($r === false || $r === null) return false;
-		return true;
-	}
+    function tableExists($table)
+    {
+        $r = $this->sq("SELECT 1 FROM information_schema.tables WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?",
+                        array($this->dbname, $table) );
+        if ($r === false || $r === null) return false;
+        return true;
+    }
 
-	function tableFieldExists($table, $field): bool
-	{
-		$table = str_replace('`', '\\`', addslashes($table));
-		$q = $this->dq("DESCRIBE `$table`");
-		while ($r = $q->fetchRow()) {
-			if ($r[0] == $field) return true;
-		}
-		return false;
-	}
+    function tableFieldExists($table, $field): bool
+    {
+        $table = str_replace('`', '\\`', addslashes($table));
+        $q = $this->dq("DESCRIBE `$table`");
+        while ($r = $q->fetchRow()) {
+            if ($r[0] == $field) return true;
+        }
+        return false;
+    }
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/class.db.sqlite3.php b/src/includes/class.db.sqlite3.php
index fefbc13..fcd3a8b 100644
--- a/src/includes/class.db.sqlite3.php
+++ b/src/includes/class.db.sqlite3.php
@@ -1,185 +1,185 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 class DatabaseResult_Sqlite3 extends DatabaseResult_Abstract
 {
-	/** @var PDOStatement */
-	private $q;
+    /** @var PDOStatement */
+    private $q;
 
-	private $affected;
+    private $affected;
 
-	function __construct($dbh, $query, $resultless = 0)
-	{
-		// use with DELETE, INSERT, UPDATE
-		if ($resultless)
-		{
-			$this->affected = $dbh->exec($query); //throws PDOException
-		}
-		// SELECT
-		else
-		{
-			$this->q = $dbh->query($query); //throws PDOException
-			$this->affected = $this->q->rowCount();
-		}
-	}
+    function __construct($dbh, $query, $resultless = 0)
+    {
+        // use with DELETE, INSERT, UPDATE
+        if ($resultless)
+        {
+            $this->affected = $dbh->exec($query); //throws PDOException
+        }
+        // SELECT
+        else
+        {
+            $this->q = $dbh->query($query); //throws PDOException
+            $this->affected = $this->q->rowCount();
+        }
+    }
 
-	function fetchRow()
-	{
-		return $this->q->fetch(PDO::FETCH_NUM);
-	}
+    function fetchRow()
+    {
+        return $this->q->fetch(PDO::FETCH_NUM);
+    }
 
-	function fetchAssoc()
-	{
-		return $this->q->fetch(PDO::FETCH_ASSOC);
-	}
+    function fetchAssoc()
+    {
+        return $this->q->fetch(PDO::FETCH_ASSOC);
+    }
 
-	function rowsAffected()
-	{
-		return $this->affected;
-	}
+    function rowsAffected()
+    {
+        return $this->affected;
+    }
 
 }
 
 class Database_Sqlite3 extends Database_Abstract
 {
-	/** @var PDO */
-	private $dbh;
+    /** @var PDO */
+    private $dbh;
 
-	private $affected = null;
-	var $lastQuery;
-	var $prefix = '';
+    private $affected = null;
+    var $lastQuery;
+    var $prefix = '';
 
-	function __construct()
-	{
-	}
+    function __construct()
+    {
+    }
 
-	function connect($params)
-	{
-		$filename = $params['filename'];
-		$options = array(
-			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
-		);
-		$this->dbh = new PDO("sqlite:$filename", null, null, $options); //throws PDOException
-		return true;
-	}
+    function connect($params)
+    {
+        $filename = $params['filename'];
+        $options = array(
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
+        );
+        $this->dbh = new PDO("sqlite:$filename", null, null, $options); //throws PDOException
+        return true;
+    }
 
-	/*
-		SELECT queries for single row
-	*/
-	function sq($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    /*
+        SELECT queries for single row
+    */
+    function sq($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchRow();
-		if ($res === false) return NULL;
+        $res = $q->fetchRow();
+        if ($res === false) return NULL;
 
-		if (sizeof($res) > 1) return $res;
-		else return $res[0];
-	}
+        if (sizeof($res) > 1) return $res;
+        else return $res[0];
+    }
 
-	/*
-		SELECT queries for single row
-	*/
-	function sqa($query, $p = NULL)
-	{
-		$q = $this->_dq($query, $p);
+    /*
+        SELECT queries for single row
+    */
+    function sqa($query, $p = NULL)
+    {
+        $q = $this->_dq($query, $p);
 
-		$res = $q->fetchAssoc();
-		if ($res === false) return NULL;
-		return $res;
-	}
+        $res = $q->fetchAssoc();
+        if ($res === false) return NULL;
+        return $res;
+    }
 
-	/*
-		SELECT queries for multiple rows
-	*/
-	function dq($query, $p = NULL) : DatabaseResult_Abstract
-	{
-		return $this->_dq($query, $p);
-	}
+    /*
+        SELECT queries for multiple rows
+    */
+    function dq($query, $p = NULL) : DatabaseResult_Abstract
+    {
+        return $this->_dq($query, $p);
+    }
 
-	/*
-		for resultless queries like INSERT,UPDATE,DELETE
-	*/
-	function ex($query, $p = NULL)
-	{
-		$dbr = $this->_dq($query, $p, 1);
-		return $this->affected();
-	}
+    /*
+        for resultless queries like INSERT,UPDATE,DELETE
+    */
+    function ex($query, $p = NULL)
+    {
+        $dbr = $this->_dq($query, $p, 1);
+        return $this->affected();
+    }
 
-	private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
-	{
-		if (!isset($p)) $p = array();
-		elseif (!is_array($p)) $p = array($p);
+    private function _dq($query, $p = NULL, $resultless = 0) : DatabaseResult_Abstract
+    {
+        if (!isset($p)) $p = array();
+        elseif (!is_array($p)) $p = array($p);
 
-		$m = explode('?', $query);
+        $m = explode('?', $query);
 
-		if (sizeof($p) > 0)
-		{
-			if (sizeof($m) < sizeof($p)+1) {
-				throw new Exception("params to set MORE than query params");
-			}
-			if (sizeof($m) > sizeof($p)+1) {
-				throw new Exception("params to set LESS than query params");
-			}
-			$query = "";
-			for ($i=0; $i<sizeof($m)-1; $i++) {
-				$query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
-			}
-			$query .= $m[$i];
-		}
-		$this->lastQuery = $query;
-		$dbr = new DatabaseResult_Sqlite3($this->dbh, $query, $resultless);
-		$this->affected = $dbr->rowsAffected();
-		return $dbr;
-	}
+        if (sizeof($p) > 0)
+        {
+            if (sizeof($m) < sizeof($p)+1) {
+                throw new Exception("params to set MORE than query params");
+            }
+            if (sizeof($m) > sizeof($p)+1) {
+                throw new Exception("params to set LESS than query params");
+            }
+            $query = "";
+            for ($i=0; $i<sizeof($m)-1; $i++) {
+                $query .= $m[$i]. (is_null($p[$i]) ? 'NULL' : $this->quote($p[$i]));
+            }
+            $query .= $m[$i];
+        }
+        $this->lastQuery = $query;
+        $dbr = new DatabaseResult_Sqlite3($this->dbh, $query, $resultless);
+        $this->affected = $dbr->rowsAffected();
+        return $dbr;
+    }
 
-	function affected()
-	{
-		return $this->affected;
-	}
+    function affected()
+    {
+        return $this->affected;
+    }
 
-	function quote($s)
-	{
-		return $this->dbh->quote($s);
-	}
+    function quote($s)
+    {
+        return $this->dbh->quote($s);
+    }
 
-	function quoteForLike($format, $s)
-	{
-		$s = str_replace(array('\\','%','_'), array('\\\\','\%','\_'), $s);
-		return $this->dbh->quote(sprintf($format, $s)). " ESCAPE '\'";
-	}
+    function quoteForLike($format, $s)
+    {
+        $s = str_replace(array('\\','%','_'), array('\\\\','\%','\_'), $s);
+        return $this->dbh->quote(sprintf($format, $s)). " ESCAPE '\'";
+    }
 
-	function lastInsertId($name = null)
-	{
-		return $this->dbh->lastInsertId();
-	}
+    function lastInsertId($name = null)
+    {
+        return $this->dbh->lastInsertId();
+    }
 
-	function tableExists($table)
-	{
-		$exists = $this->sq("SELECT 1 FROM sqlite_master WHERE type='table' AND name=?", $table);
-		if ($exists == "1") {
-		  return true;
-		}
-		$exists = $this->sq("SELECT 1 FROM sqlite_temp_master WHERE type='table' AND name=?", $table);
-		if ($exists == "1") {
-		  return true;
-		}
-		return false;
-	}
+    function tableExists($table)
+    {
+        $exists = $this->sq("SELECT 1 FROM sqlite_master WHERE type='table' AND name=?", $table);
+        if ($exists == "1") {
+          return true;
+        }
+        $exists = $this->sq("SELECT 1 FROM sqlite_temp_master WHERE type='table' AND name=?", $table);
+        if ($exists == "1") {
+          return true;
+        }
+        return false;
+    }
 
-	function tableFieldExists($table, $field): bool
-	{
-		$q = $this->dq("PRAGMA table_info(". $this->quote($table). ")");
-		while ($r = $q->fetchRow()) {
-			if ($r[1] == $field) return true;
-		}
-		return false;
-	}
+    function tableFieldExists($table, $field): bool
+    {
+        $q = $this->dq("PRAGMA table_info(". $this->quote($table). ")");
+        while ($r = $q->fetchRow()) {
+            if ($r[1] == $field) return true;
+        }
+        return false;
+    }
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/class.dbconnection.php b/src/includes/class.dbconnection.php
index 3011cc7..5682ea2 100644
--- a/src/includes/class.dbconnection.php
+++ b/src/includes/class.dbconnection.php
@@ -1,67 +1,67 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2021,2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2021,2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 class DBConnection
 {
-	protected static $instance;
+    protected static $instance;
 
-	public static function init(Database_Abstract $instance) : Database_Abstract
-	{
-		self::$instance = $instance;
-		return $instance;
-	}
+    public static function init(Database_Abstract $instance) : Database_Abstract
+    {
+        self::$instance = $instance;
+        return $instance;
+    }
 
-	public static function instance() : Database_Abstract
-	{
+    public static function instance() : Database_Abstract
+    {
         if (!isset(self::$instance)) {
-			throw new Exception("DBConnection is not initialized");
+            throw new Exception("DBConnection is not initialized");
         }
-		return self::$instance;
-	}
+        return self::$instance;
+    }
 
-	public static function setPrefix($prefix)
-	{
-		$db = self::instance();
-		$db->setPrefix($prefix);
-	}
+    public static function setPrefix($prefix)
+    {
+        $db = self::instance();
+        $db->setPrefix($prefix);
+    }
 }
 
 abstract class Database_Abstract
 {
-	var $lastQuery = null;
-	var $prefix = ''; //TODO: make private
-	abstract function connect($params);
-	abstract function sq($query, $p = NULL);
-	abstract function sqa($query, $p = NULL);
-	abstract function dq($query, $p = NULL) : DatabaseResult_Abstract;
-	abstract function ex($query, $p = NULL);
-	abstract function affected();
-	abstract function quote($s);
-	abstract function quoteForLike($format, $s);
-	abstract function lastInsertId($name = null);
-	abstract function tableExists($table);
-	abstract function tableFieldExists($table, $field): bool;
+    var $lastQuery = null;
+    var $prefix = ''; //TODO: make private
+    abstract function connect($params);
+    abstract function sq($query, $p = NULL);
+    abstract function sqa($query, $p = NULL);
+    abstract function dq($query, $p = NULL) : DatabaseResult_Abstract;
+    abstract function ex($query, $p = NULL);
+    abstract function affected();
+    abstract function quote($s);
+    abstract function quoteForLike($format, $s);
+    abstract function lastInsertId($name = null);
+    abstract function tableExists($table);
+    abstract function tableFieldExists($table, $field): bool;
 
-	function prefix(): string {
-		return $this->prefix;
-	}
+    function prefix(): string {
+        return $this->prefix;
+    }
 
-	function setPrefix(string $prefix) {
-		if ($prefix != '' && !preg_match("/^[a-zA-Z0-9_]+$/", $prefix)) {
-			throw new Exception("Incorrect table prefix");
-		}
-		$this->prefix = $prefix;
-	}
+    function setPrefix(string $prefix) {
+        if ($prefix != '' && !preg_match("/^[a-zA-Z0-9_]+$/", $prefix)) {
+            throw new Exception("Incorrect table prefix");
+        }
+        $this->prefix = $prefix;
+    }
 }
 
 abstract class DatabaseResult_Abstract
 {
-	abstract function fetchRow();
-	abstract function fetchAssoc();
+    abstract function fetchRow();
+    abstract function fetchAssoc();
 }
 
diff --git a/src/includes/class.dbcore.php b/src/includes/class.dbcore.php
index 95a2ede..8aaa47f 100644
--- a/src/includes/class.dbcore.php
+++ b/src/includes/class.dbcore.php
@@ -1,9 +1,9 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 
@@ -11,68 +11,68 @@
 
 class DBCore
 {
-	/** @var Database_Abstract $db */
-	protected $db;
+    /** @var Database_Abstract $db */
+    protected $db;
 
-	/** @var DBCore $defaultdb */
-	protected static $defaultInstance;
+    /** @var DBCore $defaultdb */
+    protected static $defaultInstance;
 
-	/**
-	 *
-	 * @param Database_Abstract $db Value of DBConnection::instance() or similar
-	 * @return void
-	 */
-	public function __construct(Database_Abstract $db) {
-		$this->db = $db;
-	}
+    /**
+     *
+     * @param Database_Abstract $db Value of DBConnection::instance() or similar
+     * @return void
+     */
+    public function __construct(Database_Abstract $db) {
+        $this->db = $db;
+    }
 
-	/**
-	 *
-	 * @return Database_Abstract
-	 * @throws Exception
-	 */
-	public function connection()
-	{
-		if (!isset($this->db)) {
-			throw new Exception("DBConnection is not set");
-		}
-		return $this->db;
-	}
-
-	/**
-	 *
-	 * @return DBCore
-	 * @throws Exception
-	 */
-	public static function defaultInstance() : DBCore
-	{
-        if (!isset(self::$defaultInstance)) {
-			throw new Exception("DBCore defaultInstance is not initialized");
+    /**
+     *
+     * @return Database_Abstract
+     * @throws Exception
+     */
+    public function connection()
+    {
+        if (!isset($this->db)) {
+            throw new Exception("DBConnection is not set");
         }
-		return self::$defaultInstance;
-	}
+        return $this->db;
+    }
 
-	/**
-	 *
-	 * @param DBCore $instance
-	 * @return void
-	 */
-	public static function setDefaultInstance(DBCore $instance)
-	{
-		self::$defaultInstance = $instance;
-	}
+    /**
+     *
+     * @return DBCore
+     * @throws Exception
+     */
+    public static function defaultInstance() : DBCore
+    {
+        if (!isset(self::$defaultInstance)) {
+            throw new Exception("DBCore defaultInstance is not initialized");
+        }
+        return self::$defaultInstance;
+    }
 
-	/**
-	 *
-	 * @param int $id
-	 * @return int
-	 */
-	public function getListIdByTaskId(int $id): int
-	{
-		$db = $this->db;
-		$listId = (int)$db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=". (int)$id);
-		return $listId;
-	}
+    /**
+     *
+     * @param DBCore $instance
+     * @return void
+     */
+    public static function setDefaultInstance(DBCore $instance)
+    {
+        self::$defaultInstance = $instance;
+    }
+
+    /**
+     *
+     * @param int $id
+     * @return int
+     */
+    public function getListIdByTaskId(int $id): int
+    {
+        $db = $this->db;
+        $listId = (int)$db->sq("SELECT list_id FROM {$db->prefix}todolist WHERE id=". (int)$id);
+        return $listId;
+    }
 
 }
 
diff --git a/src/includes/class.lang.php b/src/includes/class.lang.php
index 82d74ea..65ee328 100644
--- a/src/includes/class.lang.php
+++ b/src/includes/class.lang.php
@@ -1,165 +1,165 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 /*
-	myTinyTodo language class
+    myTinyTodo language class
 */
 
 class Lang
 {
-	protected static $instance;
-	protected static $langDir = MTTLANG;
-	protected $code = 'en';
-	protected $default = 'en';
-	protected $strings;
+    protected static $instance;
+    protected static $langDir = MTTLANG;
+    protected $code = 'en';
+    protected $default = 'en';
+    protected $strings;
 
-	public static function instance()
-	{
+    public static function instance()
+    {
         if (!isset(self::$instance)) {
-			$c = __CLASS__;
-			self::$instance = new $c;
+            $c = __CLASS__;
+            self::$instance = new $c;
         }
-		return self::$instance;
-	}
+        return self::$instance;
+    }
 
-	public static function loadLangOrDie($code, $die = 1)
-	{
-		$lang = self::instance();
+    public static function loadLangOrDie($code, $die = 1)
+    {
+        $lang = self::instance();
 
-		//check if json file exists
-		if ( self::langExists($code) ) {
-			$jsonString = file_get_contents( self::$langDir. "{$code}.json" );
-			$lang->loadJsonString($code, $jsonString);
-		}
-		else if ( $die == 0 ) {
-			//notice?
-			$lang->code = $lang->default; //sure?
-			$lang->loadDefaultStrings();
-		}
-		else if ( $die == 1 ) {
-			die("Language file not found (". htmlspecialchars($code). ".json)");
-		}
-	}
+        //check if json file exists
+        if ( self::langExists($code) ) {
+            $jsonString = file_get_contents( self::$langDir. "{$code}.json" );
+            $lang->loadJsonString($code, $jsonString);
+        }
+        else if ( $die == 0 ) {
+            //notice?
+            $lang->code = $lang->default; //sure?
+            $lang->loadDefaultStrings();
+        }
+        else if ( $die == 1 ) {
+            die("Language file not found (". htmlspecialchars($code). ".json)");
+        }
+    }
 
-	public static function loadLang($code)
-	{
-		self::loadLangOrDie($code, 0);
-	}
+    public static function loadLang($code)
+    {
+        self::loadLangOrDie($code, 0);
+    }
 
-	public static function langExists($code)
-	{
-		return file_exists(self::$langDir. $code. '.json');
-	}
+    public static function langExists($code)
+    {
+        return file_exists(self::$langDir. $code. '.json');
+    }
 
-	function loadJsonString($code, $jsonString)
-	{
-		$this->code = $code;
-		$json = json_decode($jsonString, true);
+    function loadJsonString($code, $jsonString)
+    {
+        $this->code = $code;
+        $json = json_decode($jsonString, true);
 
-		//load default language
-		if ( $code != $this->default ) {
-			$this->loadDefaultStrings();
-			$this->strings = array_replace($this->strings, $json);
-		}
-		else {
-			$this->strings = $json;
-		}
-	}
+        //load default language
+        if ( $code != $this->default ) {
+            $this->loadDefaultStrings();
+            $this->strings = array_replace($this->strings, $json);
+        }
+        else {
+            $this->strings = $json;
+        }
+    }
 
-	function loadDefaultStrings()
-	{
-		if ( ! self::langExists($this->default) ) {
-			die("Default language file not found (". htmlspecialchars($this->default). ".json)");
-		}
-		$defStr = file_get_contents($this->langDir(). "{$this->default}.json");
-		$this->strings = json_decode($defStr, true);
-	}
+    function loadDefaultStrings()
+    {
+        if ( ! self::langExists($this->default) ) {
+            die("Default language file not found (". htmlspecialchars($this->default). ".json)");
+        }
+        $defStr = file_get_contents($this->langDir(). "{$this->default}.json");
+        $this->strings = json_decode($defStr, true);
+    }
 
-	function get($key)
-	{
-		if ( isset($this->strings[$key]) ) {
-			return $this->strings[$key];
-		}
-		return $key;
-	}
+    function get($key)
+    {
+        if ( isset($this->strings[$key]) ) {
+            return $this->strings[$key];
+        }
+        return $key;
+    }
 
-	function rtl()
-	{
-		if ( isset($this->strings['_rtl']) ) {
-			return intval($this->strings['_rtl']);
-		}
-		return 0;
-	}
+    function rtl()
+    {
+        if ( isset($this->strings['_rtl']) ) {
+            return intval($this->strings['_rtl']);
+        }
+        return 0;
+    }
 
-	/* minimal number of translated strings to use in js front-end */
-	function jsStrings()
-	{
-		$a = array();
-		$a['daysMin'] = $this->get('days_min');
-		$a['daysLong'] = $this->get('days_long');
-		$a['monthsShort'] = $this->get('months_short');
-		$a['monthsLong'] = $this->get('months_long');
+    /* minimal number of translated strings to use in js front-end */
+    function jsStrings()
+    {
+        $a = array();
+        $a['daysMin'] = $this->get('days_min');
+        $a['daysLong'] = $this->get('days_long');
+        $a['monthsShort'] = $this->get('months_short');
+        $a['monthsLong'] = $this->get('months_long');
 
-		$this->fillWithValues($a, [
-			'confirmDelete',
-			'confirmLeave',
-			'actionNoteSave',
-			'actionNoteCancel',
-			'error',
-			'denied',
-			'listNotFound',
-			'noPublicLists',
-			'invalidpass',
-			'addList',
-			'addListDefault',
-			'renameList',
-			'deleteList',
-			'clearCompleted',
-			'settingsSaved',
-			'tags',
-			'tasks',
-			'f_past',
-			'f_today',
-			'f_soon',
-			'alltasks',
-			'set_header'
-		]);
-		$a['_rtl'] = $this->rtl() ? 1 : 0;
+        $this->fillWithValues($a, [
+            'confirmDelete',
+            'confirmLeave',
+            'actionNoteSave',
+            'actionNoteCancel',
+            'error',
+            'denied',
+            'listNotFound',
+            'noPublicLists',
+            'invalidpass',
+            'addList',
+            'addListDefault',
+            'renameList',
+            'deleteList',
+            'clearCompleted',
+            'settingsSaved',
+            'tags',
+            'tasks',
+            'f_past',
+            'f_today',
+            'f_soon',
+            'alltasks',
+            'set_header'
+        ]);
+        $a['_rtl'] = $this->rtl() ? 1 : 0;
 
-		return $a;
-	}
+        return $a;
+    }
 
-	function makeJS($pretty = 0)
-	{
-		$a = $this->jsStrings();
-		$opts = JSON_UNESCAPED_UNICODE;
-		if ($pretty) {
-			$opts |= JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES;
-		}
-		return json_encode($a, $opts);
-	}
+    function makeJS($pretty = 0)
+    {
+        $a = $this->jsStrings();
+        $opts = JSON_UNESCAPED_UNICODE;
+        if ($pretty) {
+            $opts |= JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES;
+        }
+        return json_encode($a, $opts);
+    }
 
-	protected function fillWithValues(array &$a, array $keys)
-	{
-		foreach ( $keys as $key ) {
-			$a[$key] = $this->get($key);
-		}
-	}
+    protected function fillWithValues(array &$a, array $keys)
+    {
+        foreach ( $keys as $key ) {
+            $a[$key] = $this->get($key);
+        }
+    }
 
-	function langDir()
-	{
-		return self::$langDir;
-	}
+    function langDir()
+    {
+        return self::$langDir;
+    }
 
-	function langCode()
-	{
-		return $this->code;
-	}
+    function langCode()
+    {
+        return $this->code;
+    }
 
 }
 
diff --git a/src/includes/class.sessionhandler.php b/src/includes/class.sessionhandler.php
index f6e8e14..089f3eb 100644
--- a/src/includes/class.sessionhandler.php
+++ b/src/includes/class.sessionhandler.php
@@ -1,105 +1,105 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 class MTTSessionHandler implements SessionHandlerInterface
 {
-	/**
-	 * @var Database_Abstract
-	 */
-	private $db;
+    /**
+     * @var Database_Abstract
+     */
+    private $db;
 
-	/**
-	 * @param string $path
-	 * @param string $name
-	 * @return bool
-	 * @throws Exception
-	 */
-	public function open($path, $name): bool
-	{
-		$this->db = DBConnection::instance();
-		return true;
-	}
+    /**
+     * @param string $path
+     * @param string $name
+     * @return bool
+     * @throws Exception
+     */
+    public function open($path, $name): bool
+    {
+        $this->db = DBConnection::instance();
+        return true;
+    }
 
-	/** @return bool  */
-	public function close(): bool
+    /** @return bool  */
+    public function close(): bool
     {
         return true;
     }
 
-	/**
-	 * @param string $id
-	 * @return string
-	 * @throws Exception
-	 */
-	#[\ReturnTypeWillChange]
-	public function read($id)
-	{
-		// read session data if not expired
-		$time = time();
-		$expire = $time;
-		$r = $this->db->sq("SELECT data,last_access FROM {$this->db->prefix}sessions WHERE id = ? AND expires >= $expire", $id);
-		if ( is_null($r) ) return '';
+    /**
+     * @param string $id
+     * @return string
+     * @throws Exception
+     */
+    #[\ReturnTypeWillChange]
+    public function read($id)
+    {
+        // read session data if not expired
+        $time = time();
+        $expire = $time;
+        $r = $this->db->sq("SELECT data,last_access FROM {$this->db->prefix}sessions WHERE id = ? AND expires >= $expire", $id);
+        if ( is_null($r) ) return '';
 
-		// update last access time and set expires in 14 days
-		// refresh once in a second
-		if ( $r[1] < $time ) {
-			$expire = $time + 14 * 86400;
-			$this->db->ex("UPDATE {$this->db->prefix}sessions SET last_access=?,expires=? WHERE id = ?",
-				array($time, $expire, $id) );
-		}
-		return $r[0];
-	}
+        // update last access time and set expires in 14 days
+        // refresh once in a second
+        if ( $r[1] < $time ) {
+            $expire = $time + 14 * 86400;
+            $this->db->ex("UPDATE {$this->db->prefix}sessions SET last_access=?,expires=? WHERE id = ?",
+                array($time, $expire, $id) );
+        }
+        return $r[0];
+    }
 
-	/**
-	 * @param string $id
-	 * @param string $data
-	 * @return bool
-	 * @throws Exception
-	 */
-	public function write($id, $data): bool
-	{
-		$exists = $this->db->sq("SELECT COUNT(*) FROM {$this->db->prefix}sessions WHERE id = ?", $id);
-		if (!$exists) {
-			// Create new session with 14 days lifetime
-			$expire = time() + 14 * 86400;
-			$this->db->ex("INSERT INTO {$this->db->prefix}sessions (id,data,expires) VALUES (?,?,?)",
-				array($id, $data, $expire) );
-		}
-		else {
-			// Update existing session
-			$this->db->ex("UPDATE {$this->db->prefix}sessions SET data = ? WHERE id = ?",
-				array($data, $id) );
-		}
-		return true;
-	}
+    /**
+     * @param string $id
+     * @param string $data
+     * @return bool
+     * @throws Exception
+     */
+    public function write($id, $data): bool
+    {
+        $exists = $this->db->sq("SELECT COUNT(*) FROM {$this->db->prefix}sessions WHERE id = ?", $id);
+        if (!$exists) {
+            // Create new session with 14 days lifetime
+            $expire = time() + 14 * 86400;
+            $this->db->ex("INSERT INTO {$this->db->prefix}sessions (id,data,expires) VALUES (?,?,?)",
+                array($id, $data, $expire) );
+        }
+        else {
+            // Update existing session
+            $this->db->ex("UPDATE {$this->db->prefix}sessions SET data = ? WHERE id = ?",
+                array($data, $id) );
+        }
+        return true;
+    }
 
-	/**
-	 * @param string $id
-	 * @return bool
-	 * @throws Exception
-	 */
-	public function destroy($id): bool
-	{
-		$this->db->ex("DELETE FROM {$this->db->prefix}sessions WHERE id = ?", $id);
-		return true;
-	}
+    /**
+     * @param string $id
+     * @return bool
+     * @throws Exception
+     */
+    public function destroy($id): bool
+    {
+        $this->db->ex("DELETE FROM {$this->db->prefix}sessions WHERE id = ?", $id);
+        return true;
+    }
 
-	/**
-	 * @param int $max_lifetime
-	 * @return int|false
-	 */
-	#[\ReturnTypeWillChange]
-	public function gc($max_lifetime)
-	{
-		// We ignore php runtime 'session.gc_maxlifetime'
-		$expire = time();
-		$affected = $this->db->ex("DELETE FROM {$this->db->prefix}sessions WHERE expires < $expire");
-		return $affected;
-	}
+    /**
+     * @param int $max_lifetime
+     * @return int|false
+     */
+    #[\ReturnTypeWillChange]
+    public function gc($max_lifetime)
+    {
+        // We ignore php runtime 'session.gc_maxlifetime'
+        $expire = time();
+        $affected = $this->db->ex("DELETE FROM {$this->db->prefix}sessions WHERE expires < $expire");
+        return $affected;
+    }
 }
 
diff --git a/src/includes/common.php b/src/includes/common.php
index 50123b6..7e6b07d 100644
--- a/src/includes/common.php
+++ b/src/includes/common.php
@@ -1,123 +1,123 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2010,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2010,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 function htmlarray($a, $exclude=null)
 {
-	htmlarray_ref($a, $exclude);
-	return $a;
+    htmlarray_ref($a, $exclude);
+    return $a;
 }
 
 function htmlarray_ref(&$a, $exclude=null)
 {
-	if(!$a) return;
-	if(!is_array($a)) {
-		$a = htmlspecialchars($a);
-		return;
-	}
-	reset($a);
-	if($exclude && !is_array($exclude)) $exclude = array($exclude);
-	foreach($a as $k=>$v)
-	{
-		if(is_array($v)) $a[$k] = htmlarray($v, $exclude);
-		elseif(!$exclude) $a[$k] = htmlspecialchars($v);
-		elseif(!in_array($k, $exclude)) $a[$k] = htmlspecialchars($v);
-	}
-	return;
+    if(!$a) return;
+    if(!is_array($a)) {
+        $a = htmlspecialchars($a);
+        return;
+    }
+    reset($a);
+    if($exclude && !is_array($exclude)) $exclude = array($exclude);
+    foreach($a as $k=>$v)
+    {
+        if(is_array($v)) $a[$k] = htmlarray($v, $exclude);
+        elseif(!$exclude) $a[$k] = htmlspecialchars($v);
+        elseif(!in_array($k, $exclude)) $a[$k] = htmlspecialchars($v);
+    }
+    return;
 }
 
 function _post($param,$defvalue = '')
 {
-	if(!isset($_POST[$param])) 	{
-		return $defvalue;
-	}
-	else {
-		return $_POST[$param];
-	}
+    if(!isset($_POST[$param])) 	{
+        return $defvalue;
+    }
+    else {
+        return $_POST[$param];
+    }
 }
 
 function _get($param,$defvalue = '')
 {
-	if(!isset($_GET[$param])) {
-		return $defvalue;
-	}
-	else {
-		return $_GET[$param];
-	}
+    if(!isset($_GET[$param])) {
+        return $defvalue;
+    }
+    else {
+        return $_GET[$param];
+    }
 }
 
 function _server($param, $defvalue = '')
 {
-	if ( !isset($_SERVER[$param]) ) {
-		return $defvalue;
-	}
-	else {
-		return $_SERVER[$param];
-	}
+    if ( !isset($_SERVER[$param]) ) {
+        return $defvalue;
+    }
+    else {
+        return $_SERVER[$param];
+    }
 }
 
 function formatDate3($format, $ay, $am, $ad, $lang)
 {
-	# F - month long, M - month short
-	# m - month 2-digit, n - month 1-digit
-	# d - day 2-digit, j - day 1-digit
-	$ml = $lang->get('months_long');
-	$ms = $lang->get('months_short');
-	$Y = $ay;
-	$YC = 100 * floor($Y/100); //...1900,2000,2100...
-	if ($YC == 2000) $y = $Y < $YC+10 ? '0'.($Y-$YC) : $Y-$YC;
-	else $y = $Y;
-	$n = $am;
-	$m = $n < 10 ? '0'.$n : $n;
-	$F = $ml[$am-1];
-	$M = $ms[$am-1];
-	$j = $ad;
-	$d = $j < 10 ? '0'.$j : $j;
-	return strtr($format, array('Y'=>$Y, 'y'=>$y, 'F'=>$F, 'M'=>$M, 'n'=>$n, 'm'=>$m, 'd'=>$d, 'j'=>$j));
+    # F - month long, M - month short
+    # m - month 2-digit, n - month 1-digit
+    # d - day 2-digit, j - day 1-digit
+    $ml = $lang->get('months_long');
+    $ms = $lang->get('months_short');
+    $Y = $ay;
+    $YC = 100 * floor($Y/100); //...1900,2000,2100...
+    if ($YC == 2000) $y = $Y < $YC+10 ? '0'.($Y-$YC) : $Y-$YC;
+    else $y = $Y;
+    $n = $am;
+    $m = $n < 10 ? '0'.$n : $n;
+    $F = $ml[$am-1];
+    $M = $ms[$am-1];
+    $j = $ad;
+    $d = $j < 10 ? '0'.$j : $j;
+    return strtr($format, array('Y'=>$Y, 'y'=>$y, 'F'=>$F, 'M'=>$M, 'n'=>$n, 'm'=>$m, 'd'=>$d, 'j'=>$j));
 }
 
 function getRequestUri()
 {
-	// Do not use HTTP_X_REWRITE_URL due to CVE-2018-14773
-	// SCRIPT_NAME or PATH_INFO ?
-	if (isset($_SERVER['REQUEST_URI'])) {
-		return $_SERVER['REQUEST_URI'];
-	}
-	else if (isset($_SERVER['ORIG_PATH_INFO']))  // IIS 5.0 CGI
-	{
-		$uri = $_SERVER['ORIG_PATH_INFO']; //has no query
-		if (!empty($_SERVER['QUERY_STRING'])) $uri .= '?'. $_SERVER['QUERY_STRING'];
-		return $uri;
-	}
+    // Do not use HTTP_X_REWRITE_URL due to CVE-2018-14773
+    // SCRIPT_NAME or PATH_INFO ?
+    if (isset($_SERVER['REQUEST_URI'])) {
+        return $_SERVER['REQUEST_URI'];
+    }
+    else if (isset($_SERVER['ORIG_PATH_INFO']))  // IIS 5.0 CGI
+    {
+        $uri = $_SERVER['ORIG_PATH_INFO']; //has no query
+        if (!empty($_SERVER['QUERY_STRING'])) $uri .= '?'. $_SERVER['QUERY_STRING'];
+        return $uri;
+    }
 }
 
 function url_dir($url, $onlyPath = 1)
 {
-	if (false !== $p = strpos($url, '?')) {
-		$url = substr($url, 0, $p); # to avoid parse errors on strange query strings
-	}
-	if ($onlyPath) {
-		$url = parse_url($url, PHP_URL_PATH);
-	}
-	if ($url == '') {
-		return '/';
-	}
-	if (substr($url, -1) == '/') {
-		return $url;
-	}
-	if (false !== $p = strrpos($url, '/')) {
-		return substr($url, 0, $p+1);
-	}
-	return '/';
+    if (false !== $p = strpos($url, '?')) {
+        $url = substr($url, 0, $p); # to avoid parse errors on strange query strings
+    }
+    if ($onlyPath) {
+        $url = parse_url($url, PHP_URL_PATH);
+    }
+    if ($url == '') {
+        return '/';
+    }
+    if (substr($url, -1) == '/') {
+        return $url;
+    }
+    if (false !== $p = strrpos($url, '/')) {
+        return substr($url, 0, $p+1);
+    }
+    return '/';
 }
 
 function removeNewLines($s)
 {
-	return str_replace( ["\r","\n"], '', $s );
+    return str_replace( ["\r","\n"], '', $s );
 }
 
 /**
@@ -126,21 +126,21 @@ function removeNewLines($s)
  */
 function generateUUID(): string
 {
-	$uuid = bin2hex(random_bytes(16));
-	return sprintf('%08s-%04s-4%03s-%04x-%012s',
-		substr($uuid, 0, 8),
-		substr($uuid, 8, 4),
-		// $uuid[14] = 4
-		substr($uuid, 13, 3),
-		hexdec(substr($uuid, 16, 4)) & 0x3fff | 0x8000,
-		substr($uuid, 20, 12)
+    $uuid = bin2hex(random_bytes(16));
+    return sprintf('%08s-%04s-4%03s-%04x-%012s',
+        substr($uuid, 0, 8),
+        substr($uuid, 8, 4),
+        // $uuid[14] = 4
+        substr($uuid, 13, 3),
+        hexdec(substr($uuid, 16, 4)) & 0x3fff | 0x8000,
+        substr($uuid, 20, 12)
     );
 }
 
 function passwordHash(string $p): string
 {
-	if ($p == '') return '';
-	return 'sha256:'. hash('sha256', $p);
+    if ($p == '') return '';
+    return 'sha256:'. hash('sha256', $p);
 }
 
 /**
@@ -151,26 +151,26 @@ function passwordHash(string $p): string
  */
 function isPasswordEqualsToHash(string $p, string $hash): bool
 {
-	if ($hash == '' && $p == '') return true;
-	if ($hash == '' || $p == '') return false;
-	if ( false !== $pos = strpos($hash, ':') ) {
-		$algo = substr($hash, 0, $pos);
-		if ($algo != 'sha256') throw new Exception("Unsupported algo of password hash");
-		if ( hash_equals($hash, passwordHash($p)) ) return true;
-	}
-	return false;
+    if ($hash == '' && $p == '') return true;
+    if ($hash == '' || $p == '') return false;
+    if ( false !== $pos = strpos($hash, ':') ) {
+        $algo = substr($hash, 0, $pos);
+        if ($algo != 'sha256') throw new Exception("Unsupported algo of password hash");
+        if ( hash_equals($hash, passwordHash($p)) ) return true;
+    }
+    return false;
 }
 
 function idSignature(string $id, string $key, string $salt): string
 {
-	$secret = $key.$salt;
-	return hash_hmac('sha256', $id, $secret);
+    $secret = $key.$salt;
+    return hash_hmac('sha256', $id, $secret);
 }
 
 function isSignatureOk(string $signature, string $id, string $key, string $salt): bool
 {
-	if ( hash_equals($signature, idSignature($id, $key, $salt)) ) return true;
-	return false;
+    if ( hash_equals($signature, idSignature($id, $key, $salt)) ) return true;
+    return false;
 }
 
 ?>
\ No newline at end of file
diff --git a/src/includes/markup.php b/src/includes/markup.php
index 886f9f7..3f1c32e 100644
--- a/src/includes/markup.php
+++ b/src/includes/markup.php
@@ -1,9 +1,9 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2021-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 require_once(MTTINC. 'parsedown/Parsedown.php');
@@ -12,76 +12,76 @@ require_once(MTTINC. 'parsedown/MTTParsedown.php');
 
 function noteMarkup($note, $toExternal = false)
 {
-	if ($note === null) {
-		$note = '';
-	}
-	if (Config::get('markup') == 'v1') {
-		return mttMarkup_v1($note);
-	}
-	return markdownToHtml($note, $toExternal);
+    if ($note === null) {
+        $note = '';
+    }
+    if (Config::get('markup') == 'v1') {
+        return mttMarkup_v1($note);
+    }
+    return markdownToHtml($note, $toExternal);
 }
 
 // Markdown converter (Parsedown)
 function markdownToHtml($s, $toExternal = false)
 {
-	$parser = MTTParsedown::instance();
-	$parser->setToExternal($toExternal);
-	$parser->setSafeMode(true);
-	//$parser->setBreaksEnabled(true);
-	return $parser->text($s);
+    $parser = MTTParsedown::instance();
+    $parser->setToExternal($toExternal);
+    $parser->setSafeMode(true);
+    //$parser->setBreaksEnabled(true);
+    return $parser->text($s);
 }
 
 
 // Convert note's raw text to html with allowed elements (b,i,u,s and raw urls)
 function mttMarkup_v1($s)
 {
-	//hide allowed elements from escaping
-	$c1 = chr(1);
-	$c2 = chr(2);
-	$s = preg_replace("~<b>([\s\S]*?)</b>~i", "${c1}b${c2}\$1${c1}/b${c2}", $s);
-	$s = preg_replace("~<i>([\s\S]*?)</i>~i", "${c1}i${c2}\$1${c1}/i${c2}", $s);
-	$s = preg_replace("~<u>([\s\S]*?)</u>~i", "${c1}u${c2}\$1${c1}/u${c2}", $s);
-	$s = preg_replace("~<s>([\s\S]*?)</s>~i", "${c1}s${c2}\$1${c1}/s${c2}", $s);
-	$s = htmlspecialchars($s, ENT_QUOTES); //escape all elements, except above
-	$s = str_replace( [$c1, $c2], ['<','>'], $s ); //unhide
-	$s = nl2br($s);
+    //hide allowed elements from escaping
+    $c1 = chr(1);
+    $c2 = chr(2);
+    $s = preg_replace("~<b>([\s\S]*?)</b>~i", "${c1}b${c2}\$1${c1}/b${c2}", $s);
+    $s = preg_replace("~<i>([\s\S]*?)</i>~i", "${c1}i${c2}\$1${c1}/i${c2}", $s);
+    $s = preg_replace("~<u>([\s\S]*?)</u>~i", "${c1}u${c2}\$1${c1}/u${c2}", $s);
+    $s = preg_replace("~<s>([\s\S]*?)</s>~i", "${c1}s${c2}\$1${c1}/s${c2}", $s);
+    $s = htmlspecialchars($s, ENT_QUOTES); //escape all elements, except above
+    $s = str_replace( [$c1, $c2], ['<','>'], $s ); //unhide
+    $s = nl2br($s);
 
-	// make links from text starting with 'www.'
-	$s = preg_replace(
-		"/(^|\s|>)(www\.([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
-		'$1<a href="http://$2" target="_blank">$2</a>$4' ,
-		$s
-	);
+    // make links from text starting with 'www.'
+    $s = preg_replace(
+        "/(^|\s|>)(www\.([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
+        '$1<a href="http://$2" target="_blank">$2</a>$4' ,
+        $s
+    );
 
-	// make link from text starting with protocol like 'http://'
-	$s = preg_replace(
-		"/(^|\s|>)([a-z]+:\/\/([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
-		'$1<a href="$2" target="_blank">$2</a>$4' ,
-		$s
-	);
+    // make link from text starting with protocol like 'http://'
+    $s = preg_replace(
+        "/(^|\s|>)([a-z]+:\/\/([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
+        '$1<a href="$2" target="_blank">$2</a>$4' ,
+        $s
+    );
 
-	return $s;
+    return $s;
 }
 
 // Convert raw title to html with allowed urls
 function titleMarkup($title)
 {
-	//escape all unsafe
-	$title = htmlspecialchars($title, ENT_QUOTES);
+    //escape all unsafe
+    $title = htmlspecialchars($title, ENT_QUOTES);
 
-	// make links from text starting with 'www.'
-	$title = preg_replace(
-		"/(^|\s|>)(www\.([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
-		'$1<a href="http://$2" target="_blank">$2</a>$4' ,
-		 $title
-		);
+    // make links from text starting with 'www.'
+    $title = preg_replace(
+        "/(^|\s|>)(www\.([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
+        '$1<a href="http://$2" target="_blank">$2</a>$4' ,
+         $title
+        );
 
-	// make link from text starting with protocol like 'http://'
-	$title = preg_replace(
-		"/(^|\s|>)([a-z]+:\/\/([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
-		'$1<a href="$2" target="_blank">$2</a>$4' ,
-		$title
-	);
-	return $title;
+    // make link from text starting with protocol like 'http://'
+    $title = preg_replace(
+        "/(^|\s|>)([a-z]+:\/\/([\w\#$%&~\/.\-\+;:=,\?\[\]@]+?))(,|\.|:|)?(?=\s|&quot;|&lt;|&gt;|\"|<|>|$)/iu" ,
+        '$1<a href="$2" target="_blank">$2</a>$4' ,
+        $title
+    );
+    return $title;
 }
 
diff --git a/src/includes/parsedown/MTTParsedown.php b/src/includes/parsedown/MTTParsedown.php
index 639f8e9..40aa03e 100644
--- a/src/includes/parsedown/MTTParsedown.php
+++ b/src/includes/parsedown/MTTParsedown.php
@@ -1,41 +1,41 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 class MTTParsedown extends Parsedown
 {
 
-	protected $toExternal;
+    protected $toExternal;
 
     function __construct()
     {
-		$this->toExternal = false;
+        $this->toExternal = false;
 
         $this->InlineTypes['#'][]= 'TaskId';
         $this->inlineMarkerList .= '#';
     }
 
-	public function setToExternal(bool $v)
-	{
-		$this->toExternal = $v;
-	}
+    public function setToExternal(bool $v)
+    {
+        $this->toExternal = $v;
+    }
 
     protected function inlineTaskId($excerpt)
     {
         if (preg_match('/^#(\d+)/', $excerpt['text'], $matches))
         {
-			$attrs = array(
-				'href' => get_mttinfo('url'). '?task='. $matches[1],
-				'target' => '_blank',
-			);
-			if (!$this->toExternal) {
-				$attrs['class'] = 'mtt-link-to-task';
-				$attrs['target-id'] = $matches[1];
-			}
+            $attrs = array(
+                'href' => get_mttinfo('url'). '?task='. $matches[1],
+                'target' => '_blank',
+            );
+            if (!$this->toExternal) {
+                $attrs['class'] = 'mtt-link-to-task';
+                $attrs['target-id'] = $matches[1];
+            }
             return array(
 
                 // How many characters to advance the Parsedown's
diff --git a/src/index.php b/src/index.php
index 1749685..f82e461 100644
--- a/src/index.php
+++ b/src/index.php
@@ -1,26 +1,26 @@
 <?php
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2010,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2010,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 require_once('./init.php');
 
 //Parse query string
 if ( isset($_SERVER['QUERY_STRING']) && $_SERVER['QUERY_STRING'] != '' ) {
-	parseRoute($_SERVER['QUERY_STRING']);
+    parseRoute($_SERVER['QUERY_STRING']);
 }
 
 
 $lang = Lang::instance();
 
 if ($lang->rtl()) {
-	Config::set('rtl', 1);
+    Config::set('rtl', 1);
 }
 
 if (!is_int(Config::get('firstdayofweek')) || Config::get('firstdayofweek')<0 || Config::get('firstdayofweek')>6) {
-	Config::set('firstdayofweek', 1);
+    Config::set('firstdayofweek', 1);
 }
 
 define('TEMPLATEPATH', MTTTHEMES. Config::get('template'). '/');
@@ -32,51 +32,51 @@ require(TEMPLATEPATH. 'index.php');
 
 function parseRoute($queryString)
 {
-	parse_str($queryString, $q);
-	if (isset($q['list'])) {
-		$hash = ($q['list'] == 'alltasks') ? ['alltasks'] : ['list', (int)$q['list']];
-		unset($q['list']);
-		redirectWithHashRoute($hash, $q);
-	}
-	else if (isset($q['task'])) {
-		$listId = (int)DBCore::defaultInstance()->getListIdByTaskId((int)$q['task']);
-		if ($listId > 0) {
-			$h = [ 'list', $listId, 'search', '#'. (int)$q['task']];
-			redirectWithHashRoute($h);
-		}
-		// TODO: not found
-	}
+    parse_str($queryString, $q);
+    if (isset($q['list'])) {
+        $hash = ($q['list'] == 'alltasks') ? ['alltasks'] : ['list', (int)$q['list']];
+        unset($q['list']);
+        redirectWithHashRoute($hash, $q);
+    }
+    else if (isset($q['task'])) {
+        $listId = (int)DBCore::defaultInstance()->getListIdByTaskId((int)$q['task']);
+        if ($listId > 0) {
+            $h = [ 'list', $listId, 'search', '#'. (int)$q['task']];
+            redirectWithHashRoute($h);
+        }
+        // TODO: not found
+    }
 }
 
 function redirectWithHashRoute(array $hash, array $q = [])
 {
-	$url = get_unsafe_mttinfo('url');
-	$query = http_build_query($q);
-	if ($query != '') $url .= "?$query";
-	if (count($hash) > 0) {
-		$encodedHash = implode("/", array_map("rawurlencode", $hash));
-		$url .= "#$encodedHash";
-	}
-	header("Location: ". $url);
-	exit;
+    $url = get_unsafe_mttinfo('url');
+    $query = http_build_query($q);
+    if ($query != '') $url .= "?$query";
+    if (count($hash) > 0) {
+        $encodedHash = implode("/", array_map("rawurlencode", $hash));
+        $url .= "#$encodedHash";
+    }
+    header("Location: ". $url);
+    exit;
 }
 
 function js_options()
 {
-	$a = array(
-		"token" => htmlspecialchars(access_token()),
-		"title" => get_unsafe_mttinfo('title'),
-		"lang" => Lang::instance()->jsStrings(),
-		"mttUrl" => get_mttinfo('mtt_url'),
-		"homeUrl" => get_mttinfo('url'),
-		"needAuth" => need_auth() ? true : false,
-		"isLogged" => is_logged() ? true : false,
-		"showdate" => Config::get('showdate') ? true : false,
-		"duedatepickerformat" => htmlspecialchars(Config::get('dateformat2')),
-		"firstdayofweek" => (int) Config::get('firstdayofweek'),
-		"calendarIcon" => get_mttinfo('template_url'). 'images/calendar.svg',
-		"autotag" => Config::get('autotag') ? true : false,
-		"markdown" => Config::get('markup') == 'v1' ? false : true
-	);
-	echo json_encode($a, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+    $a = array(
+        "token" => htmlspecialchars(access_token()),
+        "title" => get_unsafe_mttinfo('title'),
+        "lang" => Lang::instance()->jsStrings(),
+        "mttUrl" => get_mttinfo('mtt_url'),
+        "homeUrl" => get_mttinfo('url'),
+        "needAuth" => need_auth() ? true : false,
+        "isLogged" => is_logged() ? true : false,
+        "showdate" => Config::get('showdate') ? true : false,
+        "duedatepickerformat" => htmlspecialchars(Config::get('dateformat2')),
+        "firstdayofweek" => (int) Config::get('firstdayofweek'),
+        "calendarIcon" => get_mttinfo('template_url'). 'images/calendar.svg',
+        "autotag" => Config::get('autotag') ? true : false,
+        "markdown" => Config::get('markup') == 'v1' ? false : true
+    );
+    echo json_encode($a, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
 }
diff --git a/src/init.php b/src/init.php
index 7ed3efd..5b3df13 100644
--- a/src/init.php
+++ b/src/init.php
@@ -1,15 +1,15 @@
 <?php
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2011,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2011,2019-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 define('MTT_VERSION', '@VERSION');
 
 ##### MyTinyTodo requires php 7.0 and above! #####
 if (version_compare(PHP_VERSION, '7.0.0') < 0) {
-	die("PHP 7.0+ is required");
+    die("PHP 7.0+ is required");
 }
 
 if(!defined('MTTPATH')) define('MTTPATH', dirname(__FILE__) .'/');
@@ -19,15 +19,15 @@ if(!defined('MTTLANG'))  define('MTTLANG', MTTCONTENT. 'lang/');
 if(!defined('MTTTHEMES'))  define('MTTTHEMES', MTTCONTENT. 'themes/');
 
 if (getenv('MTT_ENABLE_DEBUG') == 'YES') {
-	define('MTT_DEBUG', true);
-	error_reporting(E_ALL);
-	ini_set('display_errors', '1');
-	ini_set('log_errors', '1');
+    define('MTT_DEBUG', true);
+    error_reporting(E_ALL);
+    ini_set('display_errors', '1');
+    ini_set('log_errors', '1');
 }
 else {
-	//ini_set('display_errors', '0');
-	//ini_set('log_errors', '1');
-	define('MTT_DEBUG', false);
+    //ini_set('display_errors', '0');
+    //ini_set('log_errors', '1');
+    define('MTT_DEBUG', false);
 }
 
 requireConfig();
@@ -40,32 +40,32 @@ require_once(MTTINC. 'class.config.php');
 # MySQL Database Connection
 if (MTT_DB_TYPE == 'mysql')
 {
-	if (defined('MTT_DB_DRIVER') && MTT_DB_DRIVER == 'mysqli') require_once(MTTINC. 'class.db.mysqli.php');
-	else require_once(MTTINC. 'class.db.mysql.php');
-	$db = DBConnection::init(new Database_Mysql);
-	try {
-		$db->connect( array(
-			'host' => MTT_DB_HOST,
-			'user' => MTT_DB_USER,
-			'password' => MTT_DB_PASSWORD,
-			'db' => MTT_DB_NAME,
-		));
-	}
-	catch(Exception $e) {
-		logAndDie("Failed to connect to mysql database: ". $e->getMessage());
-	}
-	$db->dq("SET NAMES utf8mb4");
+    if (defined('MTT_DB_DRIVER') && MTT_DB_DRIVER == 'mysqli') require_once(MTTINC. 'class.db.mysqli.php');
+    else require_once(MTTINC. 'class.db.mysql.php');
+    $db = DBConnection::init(new Database_Mysql);
+    try {
+        $db->connect( array(
+            'host' => MTT_DB_HOST,
+            'user' => MTT_DB_USER,
+            'password' => MTT_DB_PASSWORD,
+            'db' => MTT_DB_NAME,
+        ));
+    }
+    catch(Exception $e) {
+        logAndDie("Failed to connect to mysql database: ". $e->getMessage());
+    }
+    $db->dq("SET NAMES utf8mb4");
 }
 
 # SQLite3 Database
 elseif (MTT_DB_TYPE == 'sqlite')
 {
-	require_once(MTTINC. 'class.db.sqlite3.php');
-	$db = DBConnection::init(new Database_Sqlite3);
-	$db->connect( array( 'filename' => MTTPATH. 'db/todolist.db' ) );
+    require_once(MTTINC. 'class.db.sqlite3.php');
+    $db = DBConnection::init(new Database_Sqlite3);
+    $db->connect( array( 'filename' => MTTPATH. 'db/todolist.db' ) );
 }
 else {
-	die("Incorrect database connection config");
+    die("Incorrect database connection config");
 }
 
 DBConnection::setPrefix(MTT_DB_PREFIX);
@@ -81,7 +81,7 @@ if( isset($_COOKIE['lang']) ) $forceLang = $_COOKIE['lang'];
 //else if ( isset($_GET['lang']) ) $forceLang = $_GET['lang'];
 
 if ( $forceLang != '' && preg_match("/^[a-z-]+$/i", $forceLang) ) {
-	Config::set('lang', $forceLang); //TODO: special for demo, do not change config
+    Config::set('lang', $forceLang); //TODO: special for demo, do not change config
 }
 
 require_once(MTTINC. 'class.lang.php');
@@ -90,131 +90,131 @@ Lang::loadLang( Config::get('lang') );
 $_mttinfo = array();
 
 if (need_auth() && !isset($dontStartSession)) {
-	setup_and_start_session();
+    setup_and_start_session();
 }
 
 
 function requireConfig()
 {
-	$exists = file_exists(MTTPATH. 'config.php');
-	$defined = false;
-	if ($exists) {
-		require_once(MTTPATH. 'config.php');
-		$defined = defined('MTT_DB_TYPE');
-	}
-	# It seems not installed
-	if (!$defined) {
-		die("Not installed. Run <a href=setup.php>setup.php</a> first.");
-	}
+    $exists = file_exists(MTTPATH. 'config.php');
+    $defined = false;
+    if ($exists) {
+        require_once(MTTPATH. 'config.php');
+        $defined = defined('MTT_DB_TYPE');
+    }
+    # It seems not installed
+    if (!$defined) {
+        die("Not installed. Run <a href=setup.php>setup.php</a> first.");
+    }
 }
 
 function need_auth(): bool
 {
-	return (Config::get('password') != '') ? true : false;
+    return (Config::get('password') != '') ? true : false;
 }
 
 function is_logged(): bool
 {
-	if ( !need_auth() ) return true;
-	if ( !isset($_SESSION['logged']) || !isset($_SESSION['sign']) ) return false;
-	if ( !(int)$_SESSION['logged'] ) return false;
-	return isSignatureOk($_SESSION['sign'], session_id(), Config::get('password'), defined('MTT_SALT') ? MTT_SALT : '');
+    if ( !need_auth() ) return true;
+    if ( !isset($_SESSION['logged']) || !isset($_SESSION['sign']) ) return false;
+    if ( !(int)$_SESSION['logged'] ) return false;
+    return isSignatureOk($_SESSION['sign'], session_id(), Config::get('password'), defined('MTT_SALT') ? MTT_SALT : '');
 }
 
 function is_readonly(): bool
 {
-	if ( !is_logged() ) return true;
-	return false;
+    if ( !is_logged() ) return true;
+    return false;
 }
 
 function access_token(): string
 {
-	if (!need_auth()) return '';
-	if (!isset($_SESSION)) return '';
-	if (!isset($_SESSION['token'])) return '';
-	return $_SESSION['token'];
+    if (!need_auth()) return '';
+    if (!isset($_SESSION)) return '';
+    if (!isset($_SESSION['token'])) return '';
+    return $_SESSION['token'];
 }
 
 function check_token()
 {
-	$token = access_token();
-	if ($token == '') return true;
-	if (!isset($_SERVER)) return true;
-	if (!isset($_SERVER['HTTP_MTT_TOKEN']) || $_SERVER['HTTP_MTT_TOKEN'] != $token) {
-		die("Access denied! Try to reload the page.");
-	}
+    $token = access_token();
+    if ($token == '') return true;
+    if (!isset($_SERVER)) return true;
+    if (!isset($_SERVER['HTTP_MTT_TOKEN']) || $_SERVER['HTTP_MTT_TOKEN'] != $token) {
+        die("Access denied! Try to reload the page.");
+    }
 }
 
 function setup_and_start_session()
 {
-	require_once(MTTINC. 'class.sessionhandler.php');
-	session_set_save_handler(new MTTSessionHandler());
+    require_once(MTTINC. 'class.sessionhandler.php');
+    session_set_save_handler(new MTTSessionHandler());
 
-	ini_set('session.use_cookies', true);
-	ini_set('session.use_only_cookies', true);
+    ini_set('session.use_cookies', true);
+    ini_set('session.use_only_cookies', true);
 
-	$lifetime = 5184000; # 60 days session cookie lifetime
-	$path = url_dir(Config::get('url')=='' ? getRequestUri() : Config::getUrl('url'));
-	$samesite = 'lax';
+    $lifetime = 5184000; # 60 days session cookie lifetime
+    $path = url_dir(Config::get('url')=='' ? getRequestUri() : Config::getUrl('url'));
+    $samesite = 'lax';
 
-	if (PHP_VERSION_ID < 70300) {
-		# this is a known samesite flag workaround, was fixed in 7.3
-		session_set_cookie_params($lifetime, $path. '; samesite='.$samesite, null, null, true);
-	} else {
-		session_set_cookie_params(Array(
-			'lifetime' => $lifetime,
-			'path' => $path,
-			'httponly' => true,
-			'samesite' => $samesite
-		));
-	}
-	session_name('mtt-session');
-	session_start();
+    if (PHP_VERSION_ID < 70300) {
+        # this is a known samesite flag workaround, was fixed in 7.3
+        session_set_cookie_params($lifetime, $path. '; samesite='.$samesite, null, null, true);
+    } else {
+        session_set_cookie_params(Array(
+            'lifetime' => $lifetime,
+            'path' => $path,
+            'httponly' => true,
+            'samesite' => $samesite
+        ));
+    }
+    session_name('mtt-session');
+    session_start();
 }
 
 function timestampToDatetime($timestamp)
 {
-	$format = Config::get('dateformat') .' '. (Config::get('clock') == 12 ? 'g:i A' : 'H:i');
-	return formatTime($format, $timestamp);
+    $format = Config::get('dateformat') .' '. (Config::get('clock') == 12 ? 'g:i A' : 'H:i');
+    return formatTime($format, $timestamp);
 }
 
 function formatTime($format, $timestamp=0)
 {
-	$lang = Lang::instance();
-	if($timestamp == 0) $timestamp = time();
-	$newformat = strtr($format, array('F'=>'%1', 'M'=>'%2'));
-	$adate = explode(',', date('n,'.$newformat, $timestamp), 2);
-	$s = $adate[1];
-	if($newformat != $format)
-	{
-		$am = (int)$adate[0];
-		$ml = $lang->get('months_long');
-		$ms = $lang->get('months_short');
-		$F = $ml[$am-1];
-		$M = $ms[$am-1];
-		$s = strtr($s, array('%1'=>$F, '%2'=>$M));
-	}
-	return $s;
+    $lang = Lang::instance();
+    if($timestamp == 0) $timestamp = time();
+    $newformat = strtr($format, array('F'=>'%1', 'M'=>'%2'));
+    $adate = explode(',', date('n,'.$newformat, $timestamp), 2);
+    $s = $adate[1];
+    if($newformat != $format)
+    {
+        $am = (int)$adate[0];
+        $ml = $lang->get('months_long');
+        $ms = $lang->get('months_short');
+        $F = $ml[$am-1];
+        $M = $ms[$am-1];
+        $s = strtr($s, array('%1'=>$F, '%2'=>$M));
+    }
+    return $s;
 }
 
 function _e($s)
 {
-	echo Lang::instance()->get($s);
+    echo Lang::instance()->get($s);
 }
 
 function __($s)
 {
-	return Lang::instance()->get($s);
+    return Lang::instance()->get($s);
 }
 
 function mttinfo($v)
 {
-	echo get_mttinfo($v);
+    echo get_mttinfo($v);
 }
 
 function get_mttinfo($v)
 {
-	return htmlspecialchars( get_unsafe_mttinfo($v) );
+    return htmlspecialchars( get_unsafe_mttinfo($v) );
 }
 
 /*
@@ -223,70 +223,70 @@ function get_mttinfo($v)
  */
 function get_unsafe_mttinfo($v)
 {
-	global $_mttinfo;
-	if (isset($_mttinfo[$v])) {
-		return $_mttinfo[$v];
-	}
-	switch($v)
-	{
-		case 'template_url':
-			$_mttinfo['template_url'] = get_unsafe_mttinfo('mtt_url'). 'content/themes/'. Config::get('template') . '/';
-			return $_mttinfo['template_url'];
-		case 'includes_url':
-			$_mttinfo['includes_url'] = get_unsafe_mttinfo('mtt_url'). 'includes/';
-			return $_mttinfo['includes_url'];
-		case 'url':
-			/* full url to homepage: directory with root index.php or custom index file in the root. */
-			/* ex: http://my.site/mytinytodo/   or  https://my.site/mytinytodo/home_for_2nd_theme.php  */
-			/* Should not contain a query string. Have to be set in config if custom port is used or wrong detection. */
-			$_mttinfo['url'] = Config::getUrl('url');
-			if ($_mttinfo['url'] == '') {
-				$is_https = (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on') ? true : false;
-				$_mttinfo['url'] = ($is_https ? 'https://' : 'http://'). $_SERVER['HTTP_HOST']. url_dir(getRequestUri());
-			}
-			return $_mttinfo['url'];
-		case 'mtt_url':
-			/* Directory with ajax.php. No need to set if you use default directory structure. */
-			$_mttinfo['mtt_url'] = Config::getUrl('mtt_url'); // need to have a trailing slash
-			if ($_mttinfo['mtt_url'] == '') {
-				$_mttinfo['mtt_url'] = url_dir( get_unsafe_mttinfo('url'), 0 );
-			}
-			return $_mttinfo['mtt_url'];
-		case 'title':
-			$_mttinfo['title'] = (Config::get('title') != '') ? Config::get('title') : __('My Tiny Todolist');
-			return $_mttinfo['title'];
-		case 'version':
-			if (MTT_VERSION != '@'.'VERSION') {
-				$_mttinfo['version'] = MTT_VERSION;
-				return $_mttinfo['version'];
-			}
-			return time(); //force no-cache for dev needs
-	}
+    global $_mttinfo;
+    if (isset($_mttinfo[$v])) {
+        return $_mttinfo[$v];
+    }
+    switch($v)
+    {
+        case 'template_url':
+            $_mttinfo['template_url'] = get_unsafe_mttinfo('mtt_url'). 'content/themes/'. Config::get('template') . '/';
+            return $_mttinfo['template_url'];
+        case 'includes_url':
+            $_mttinfo['includes_url'] = get_unsafe_mttinfo('mtt_url'). 'includes/';
+            return $_mttinfo['includes_url'];
+        case 'url':
+            /* full url to homepage: directory with root index.php or custom index file in the root. */
+            /* ex: http://my.site/mytinytodo/   or  https://my.site/mytinytodo/home_for_2nd_theme.php  */
+            /* Should not contain a query string. Have to be set in config if custom port is used or wrong detection. */
+            $_mttinfo['url'] = Config::getUrl('url');
+            if ($_mttinfo['url'] == '') {
+                $is_https = (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on') ? true : false;
+                $_mttinfo['url'] = ($is_https ? 'https://' : 'http://'). $_SERVER['HTTP_HOST']. url_dir(getRequestUri());
+            }
+            return $_mttinfo['url'];
+        case 'mtt_url':
+            /* Directory with ajax.php. No need to set if you use default directory structure. */
+            $_mttinfo['mtt_url'] = Config::getUrl('mtt_url'); // need to have a trailing slash
+            if ($_mttinfo['mtt_url'] == '') {
+                $_mttinfo['mtt_url'] = url_dir( get_unsafe_mttinfo('url'), 0 );
+            }
+            return $_mttinfo['mtt_url'];
+        case 'title':
+            $_mttinfo['title'] = (Config::get('title') != '') ? Config::get('title') : __('My Tiny Todolist');
+            return $_mttinfo['title'];
+        case 'version':
+            if (MTT_VERSION != '@'.'VERSION') {
+                $_mttinfo['version'] = MTT_VERSION;
+                return $_mttinfo['version'];
+            }
+            return time(); //force no-cache for dev needs
+    }
 }
 
 function reset_mttinfo($key)
 {
-	global $_mttinfo;
-	unset( $_mttinfo[$key] );
+    global $_mttinfo;
+    unset( $_mttinfo[$key] );
 }
 
 function jsonExit($data)
 {
-	header('Content-type: application/json; charset=utf-8');
-	echo json_encode($data);
-	exit;
+    header('Content-type: application/json; charset=utf-8');
+    echo json_encode($data);
+    exit;
 }
 
 function logAndDie($userText, $errText = null)
 {
-	$errText === null ? error_log($userText) : error_log($errText);
-	if (ini_get('display_errors')) {
-		echo htmlspecialchars($userText);
-	}
-	else {
-		echo "Error! See details in error log.";
-	}
-	exit(1);
+    $errText === null ? error_log($userText) : error_log($errText);
+    if (ini_get('display_errors')) {
+        echo htmlspecialchars($userText);
+    }
+    else {
+        echo "Error! See details in error log.";
+    }
+    exit(1);
 }
 
 ?>
\ No newline at end of file
diff --git a/src/settings.php b/src/settings.php
index 2c9a9e9..a5c43df 100644
--- a/src/settings.php
+++ b/src/settings.php
@@ -1,9 +1,9 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2011,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2011,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 require_once('./init.php');
@@ -11,81 +11,81 @@ require_once('./init.php');
 $lang = Lang::instance();
 
 if ( !is_logged() ) {
-	die("Access denied!<br/> Disable password protection or Log in.");
+    die("Access denied!<br/> Disable password protection or Log in.");
 }
 
 if(isset($_POST['save']))
 {
-	check_token();
+    check_token();
 
-	$t = array();
-	$langs = getLangs();
-	Config::$params['lang']['options'] = array_keys($langs);
-	Config::set('lang', _post('lang'));
+    $t = array();
+    $langs = getLangs();
+    Config::$params['lang']['options'] = array_keys($langs);
+    Config::set('lang', _post('lang'));
 
-	// in Demo mode we can set only language by cookies
-	if(defined('MTTDEMO')) {
-		setcookie('lang', Config::get('lang'), 0, url_dir(Config::get('url')=='' ? getRequestUri() : Config::getUrl('url')));
-		$t['saved'] = 1;
-		jsonExit($t);
-	}
+    // in Demo mode we can set only language by cookies
+    if(defined('MTTDEMO')) {
+        setcookie('lang', Config::get('lang'), 0, url_dir(Config::get('url')=='' ? getRequestUri() : Config::getUrl('url')));
+        $t['saved'] = 1;
+        jsonExit($t);
+    }
 
-	if (isset($_POST['password']) && $_POST['password'] != '') Config::set('password', passwordHash($_POST['password'])) ;
-	elseif (!_post('allowpassword')) Config::set('password', '');
+    if (isset($_POST['password']) && $_POST['password'] != '') Config::set('password', passwordHash($_POST['password'])) ;
+    elseif (!_post('allowpassword')) Config::set('password', '');
 
-	Config::set('smartsyntax', (int)_post('smartsyntax'));
-	// Do not set invalid timezone
-	try {
-	    $tz = trim(_post('timezone'));
-	    $testTZ = new DateTimeZone($tz); //will throw Exception on invalid timezone
-	    Config::set('timezone', $tz);
-	}
-	catch (Exception $e) {
-	}
-	Config::set('autotag', (int)_post('autotag'));
-	Config::set('markup', (int)_post('markdown') == 0 ? 'v1' : 'markdown');
-	Config::set('firstdayofweek', (int)_post('firstdayofweek'));
-	Config::set('clock', (int)_post('clock'));
-	Config::set('dateformat', removeNewLines(_post('dateformat')) );
-	Config::set('dateformat2', removeNewLines(_post('dateformat2')) );
-	Config::set('dateformatshort', removeNewLines(_post('dateformatshort')) );
-	Config::set('title', removeNewLines(trim(_post('title'))) );
-	Config::set('showdate', (int)_post('showdate'));
-	Config::save();
-	$t['saved'] = 1;
-	jsonExit($t);
+    Config::set('smartsyntax', (int)_post('smartsyntax'));
+    // Do not set invalid timezone
+    try {
+        $tz = trim(_post('timezone'));
+        $testTZ = new DateTimeZone($tz); //will throw Exception on invalid timezone
+        Config::set('timezone', $tz);
+    }
+    catch (Exception $e) {
+    }
+    Config::set('autotag', (int)_post('autotag'));
+    Config::set('markup', (int)_post('markdown') == 0 ? 'v1' : 'markdown');
+    Config::set('firstdayofweek', (int)_post('firstdayofweek'));
+    Config::set('clock', (int)_post('clock'));
+    Config::set('dateformat', removeNewLines(_post('dateformat')) );
+    Config::set('dateformat2', removeNewLines(_post('dateformat2')) );
+    Config::set('dateformatshort', removeNewLines(_post('dateformatshort')) );
+    Config::set('title', removeNewLines(trim(_post('title'))) );
+    Config::set('showdate', (int)_post('showdate'));
+    Config::save();
+    $t['saved'] = 1;
+    jsonExit($t);
 }
 
 function _c($key)
 {
-	return Config::get($key);
+    return Config::get($key);
 }
 
 function getLangs($withContents = 0)
 {
-	$langDir = Lang::instance()->langDir();
+    $langDir = Lang::instance()->langDir();
     if ( ! $h = opendir($langDir) ) {
-			return false;
-	}
+            return false;
+    }
     $a = array();
     while ( false !== ($file = readdir($h)) )
-	{
-		if ( preg_match('/(.+)\.json$/', $file, $m) ) {
-			$jsonText = file_get_contents($langDir. $file);
-			if (false === $jsonText) {
-				die("false ");
-				continue;
-			}
-			$a[$m[1]] = $m[1];
+    {
+        if ( preg_match('/(.+)\.json$/', $file, $m) ) {
+            $jsonText = file_get_contents($langDir. $file);
+            if (false === $jsonText) {
+                die("false ");
+                continue;
+            }
+            $a[$m[1]] = $m[1];
 
-			$j = json_decode($jsonText, true);
-			if ( isset($j['_header']['language']) && isset($j['_header']['original_name']) ) {
-				$a[$m[1]]= [
-					'name' => $j['_header']['original_name'],
-					'title' => $j['_header']['language']
-				];
-			}
-		}
+            $j = json_decode($jsonText, true);
+            if ( isset($j['_header']['language']) && isset($j['_header']['original_name']) ) {
+                $a[$m[1]]= [
+                    'name' => $j['_header']['original_name'],
+                    'title' => $j['_header']['language']
+                ];
+            }
+        }
     }
     closedir($h);
     return $a;
@@ -94,13 +94,13 @@ function getLangs($withContents = 0)
 
 function selectOptions($a, $value, $default=null)
 {
-	if(!$a) return '';
-	$s = '';
-	if($default !== null && !isset($a[$value])) $value = $default;
-	foreach($a as $k=>$v) {
-		$s .= '<option value="'.htmlspecialchars($k).'" '.($k===$value?'selected="selected"':'').'>'.htmlspecialchars($v).'</option>';
-	}
-	return $s;
+    if(!$a) return '';
+    $s = '';
+    if($default !== null && !isset($a[$value])) $value = $default;
+    foreach($a as $k=>$v) {
+        $s .= '<option value="'.htmlspecialchars($k).'" '.($k===$value?'selected="selected"':'').'>'.htmlspecialchars($v).'</option>';
+    }
+    return $s;
 }
 
 /**
@@ -110,15 +110,15 @@ function selectOptions($a, $value, $default=null)
  */
 function selectOptionsA($a, $key, $default=null)
 {
-	if(!$a) return '';
-	$s = '';
-	if($default !== null && !isset($a[$key])) $key = $default;
-	foreach($a as $k=>$v) {
-		$s .= '<option value="'.htmlspecialchars($k).'" '.($k===$key?'selected="selected"':'').
-		    (isset($v['title']) ? ' title="'.htmlspecialchars($v['title']).'"' : '').
-		    '>'.htmlspecialchars($v['name']).'</option>';
-	}
-	return $s;
+    if(!$a) return '';
+    $s = '';
+    if($default !== null && !isset($a[$key])) $key = $default;
+    foreach($a as $k=>$v) {
+        $s .= '<option value="'.htmlspecialchars($k).'" '.($k===$key?'selected="selected"':'').
+            (isset($v['title']) ? ' title="'.htmlspecialchars($v['title']).'"' : '').
+            '>'.htmlspecialchars($v['name']).'</option>';
+    }
+    return $s;
 }
 
 function timezoneIdentifiers()
@@ -138,10 +138,10 @@ header('Content-type:text/html; charset=utf-8');
 
 
 <?php
-	if (isset($_GET['json'])) {
-		$j = Config::requestDefaultDomain();
-		if ($j['password'] != '') $j['password'] = "<not empty>";
-		$j = json_encode($j, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
+    if (isset($_GET['json'])) {
+        $j = Config::requestDefaultDomain();
+        if ($j['password'] != '') $j['password'] = "<not empty>";
+        $j = json_encode($j, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
 ?>
 <div class="mtt-settings-table">
   <div class="tr">
@@ -150,8 +150,8 @@ header('Content-type:text/html; charset=utf-8');
   </div>
 </div>
 <?php
-		exit;
-	}
+        exit;
+    }
 ?>
 
 <div id="settings_msg" style="display:none"></div>
@@ -221,7 +221,7 @@ header('Content-type:text/html; charset=utf-8');
  <input name="dateformat" size="8" value="<?php echo htmlspecialchars(_c('dateformat'));?>" />
  <select onchange="if(this.value!=0) this.form.dateformat.value=this.value;">
  <?php echo selectOptions(array('F j, Y'=>formatTime('F j, Y'), 'M d, Y'=>formatTime('M d, Y'), 'j M Y'=>formatTime('j M Y'), 'd F Y'=>formatTime('d F Y'),
-	'n/j/Y'=>formatTime('n/j/Y'), 'd.m.Y'=>formatTime('d.m.Y'), 'j. F Y'=>formatTime('j. F Y'), 0=>__('set_custom')), _c('dateformat'), 0); ?>
+    'n/j/Y'=>formatTime('n/j/Y'), 'd.m.Y'=>formatTime('d.m.Y'), 'j. F Y'=>formatTime('j. F Y'), 0=>__('set_custom')), _c('dateformat'), 0); ?>
  </select>
 </div></div>
 
diff --git a/src/setup.php b/src/setup.php
index 8718290..f461544 100644
--- a/src/setup.php
+++ b/src/setup.php
@@ -1,19 +1,19 @@
 <?php
 
 /*
-	This file is a part of myTinyTodo.
-	(C) Copyright 2009-2011,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
-	Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
+    This file is a part of myTinyTodo.
+    (C) Copyright 2009-2011,2020-2022 Max Pozdeev <maxpozdeev@gmail.com>
+    Licensed under the GNU GPL version 2 or any later. See file COPYRIGHT for details.
 */
 
 // Can be used to upgrade database from myTinyTodo v1.4 or later
 $lastVer = '1.7';
 
 if (getenv('MTT_ENABLE_DEBUG') == 'YES') {
-	set_exception_handler('debugExceptionHandler');
+    set_exception_handler('debugExceptionHandler');
 }
 else {
-	set_exception_handler('myExceptionHandler');
+    set_exception_handler('myExceptionHandler');
 }
 
 if (!defined('MTTPATH')) define('MTTPATH', dirname(__FILE__) .'/');
@@ -35,141 +35,141 @@ echo "<big><b>myTinyTodo @VERSION Setup</b></big><br><br>";
 
 if (!$configExists && $oldConfigExists)
 {
-	// First we need to migrate database config
-	require_once(MTTPATH. 'db/config.php');
-	if (isset($config['password']) && $config['password'] != '') {
-		if (!isset($_POST['configpassword']) || $_POST['configpassword'] != $config['password']) {
-			exitMessage("Enter current password to continue. <form method=post><input type=password name=configpassword> <input type=submit value=' Continue '></form>");
-		}
-	}
-	Config::loadConfigV14($config);
-	tryToSaveDBConfig();
-	$configExists = true;
+    // First we need to migrate database config
+    require_once(MTTPATH. 'db/config.php');
+    if (isset($config['password']) && $config['password'] != '') {
+        if (!isset($_POST['configpassword']) || $_POST['configpassword'] != $config['password']) {
+            exitMessage("Enter current password to continue. <form method=post><input type=password name=configpassword> <input type=submit value=' Continue '></form>");
+        }
+    }
+    Config::loadConfigV14($config);
+    tryToSaveDBConfig();
+    $configExists = true;
 }
 
 if ($configExists)
 {
-	// No need to migrate database config
-	require_once(MTTPATH. 'config.php');
-	$db = testConnect($error);
-	if (!$db) {
-		exitMessage( "Database connection config file seems to be incorrect. You can remove config.php or edit it manually and then reload setup.<br><br>".
-					 "<b>Error:</b> ". htmlspecialchars($error) );
-	}
-	// Config file v1.7 already exists and set up correctly
-	$dbtype = MTT_DB_TYPE;
+    // No need to migrate database config
+    require_once(MTTPATH. 'config.php');
+    $db = testConnect($error);
+    if (!$db) {
+        exitMessage( "Database connection config file seems to be incorrect. You can remove config.php or edit it manually and then reload setup.<br><br>".
+                     "<b>Error:</b> ". htmlspecialchars($error) );
+    }
+    // Config file v1.7 already exists and set up correctly
+    $dbtype = MTT_DB_TYPE;
 
-	// Determine current installed db version
-	$ver = databaseVersion($db);
+    // Determine current installed db version
+    $ver = databaseVersion($db);
 
-	if ($ver == '1.4') {
-		// Need to upgrade. Do not ask for old password
-		require_once(MTTPATH. 'db/config.php');
-		Config::loadConfigV14($config);
-		unset($config);
-		DBConnection::init($db);
-	}
-	else {
-		if ($ver != '1.7') {
-			Config::$noDatabase = true; //will not load settings from database in init.php
-		}
-		require_once('./init.php');
-		if ( !is_logged() ) {
-			die("Access denied!<br> Disable password protection or Log in.");
-		}
-	}
+    if ($ver == '1.4') {
+        // Need to upgrade. Do not ask for old password
+        require_once(MTTPATH. 'db/config.php');
+        Config::loadConfigV14($config);
+        unset($config);
+        DBConnection::init($db);
+    }
+    else {
+        if ($ver != '1.7') {
+            Config::$noDatabase = true; //will not load settings from database in init.php
+        }
+        require_once('./init.php');
+        if ( !is_logged() ) {
+            die("Access denied!<br> Disable password protection or Log in.");
+        }
+    }
 }
 
 if ($ver == '')
 {
-	$install = trim(_post('install'));
+    $install = trim(_post('install'));
 
-	if ($install == '' && $db !== null)
-	{
-		# We already have settings file and need to create tables.
-		exitMessage("<form method=post>Click next to create tables in '". htmlspecialchars($dbtype). "' database.<br><br>
-					<input type=hidden name=install value=create><input type=submit value=' Next '></form>");
-	}
-	elseif ($install == '')
-	{
-		# Specify database type and connection settings to save.
-		exitMessage("
-			<form method=post>Select database type to use:<br><br>
-			<input type=hidden name=install value=config>
-			<label><input type=radio name=db_type value=sqlite checked=checked onclick=\"document.getElementById('mysqlsettings').style.display='none'\">SQLite</label><br><br>
-			<label><input type=radio name=db_type value=mysql onclick=\"document.getElementById('mysqlsettings').style.display=''\">MySQL</label><br>
-			<div id='mysqlsettings' style='display:none; margin-left:30px;'><br><table>
-			<tr><td>Host:</td><td><input name=db_host value=localhost></td></tr>
-			<tr><td>Database:</td><td><input name=db_name value=mytinytodo></td></tr>
-			<tr><td>User:</td><td><input name=db_user value=mtt></td></tr>
-			<tr><td>Password:</td><td><input type=password name=db_password></td></tr>
-			<tr><td>Table prefix:</td><td><input name=db_prefix value='mtt_'></td></tr>
-			</table></div><br><input type=submit value=' Next '></form>
-		");
-	}
-	elseif ($install == 'config')
-	{
-		# Save configuration
-		$dbtype = ($_POST['db_type'] == 'mysql') ? 'mysql' : 'sqlite';
-		Config::set('db.type', $dbtype);
-		if ($dbtype == 'mysql') {
-			Config::set('db.host', _post('db_host'));
-			Config::set('db.name', _post('db_name'));
-			Config::set('db.user', _post('db_user'));
-			Config::set('db.password', _post('db_password'));
-			Config::set('db.prefix', trim(_post('db_prefix')));
-		}
-		Config::defineDbConstants();
-		$db = testConnect($error);
-		if (!$db) {
-			exitMessage("Database connection error: ". htmlspecialchars($error));
-		}
-		if (defined('MTT_DB_DRIVER')) {
-			Config::set('db.driver', MTT_DB_DRIVER);
-		}
-		tryToSaveDBConfig();
-		exitMessage("This will create myTinyTodo database <br> <form method=post><input type=hidden name=install value=create><input type=submit value=' Install '></form>");
-	}
-	elseif ($install == 'create')
-	{
-		# install database
-		try {
-			createAllTables($db, $dbtype);
-		} catch (Exception $e) {
-			exitMessage("<b>Error:</b> ". htmlarray($e->getMessage()));
-		}
+    if ($install == '' && $db !== null)
+    {
+        # We already have settings file and need to create tables.
+        exitMessage("<form method=post>Click next to create tables in '". htmlspecialchars($dbtype). "' database.<br><br>
+                    <input type=hidden name=install value=create><input type=submit value=' Next '></form>");
+    }
+    elseif ($install == '')
+    {
+        # Specify database type and connection settings to save.
+        exitMessage("
+            <form method=post>Select database type to use:<br><br>
+            <input type=hidden name=install value=config>
+            <label><input type=radio name=db_type value=sqlite checked=checked onclick=\"document.getElementById('mysqlsettings').style.display='none'\">SQLite</label><br><br>
+            <label><input type=radio name=db_type value=mysql onclick=\"document.getElementById('mysqlsettings').style.display=''\">MySQL</label><br>
+            <div id='mysqlsettings' style='display:none; margin-left:30px;'><br><table>
+            <tr><td>Host:</td><td><input name=db_host value=localhost></td></tr>
+            <tr><td>Database:</td><td><input name=db_name value=mytinytodo></td></tr>
+            <tr><td>User:</td><td><input name=db_user value=mtt></td></tr>
+            <tr><td>Password:</td><td><input type=password name=db_password></td></tr>
+            <tr><td>Table prefix:</td><td><input name=db_prefix value='mtt_'></td></tr>
+            </table></div><br><input type=submit value=' Next '></form>
+        ");
+    }
+    elseif ($install == 'config')
+    {
+        # Save configuration
+        $dbtype = ($_POST['db_type'] == 'mysql') ? 'mysql' : 'sqlite';
+        Config::set('db.type', $dbtype);
+        if ($dbtype == 'mysql') {
+            Config::set('db.host', _post('db_host'));
+            Config::set('db.name', _post('db_name'));
+            Config::set('db.user', _post('db_user'));
+            Config::set('db.password', _post('db_password'));
+            Config::set('db.prefix', trim(_post('db_prefix')));
+        }
+        Config::defineDbConstants();
+        $db = testConnect($error);
+        if (!$db) {
+            exitMessage("Database connection error: ". htmlspecialchars($error));
+        }
+        if (defined('MTT_DB_DRIVER')) {
+            Config::set('db.driver', MTT_DB_DRIVER);
+        }
+        tryToSaveDBConfig();
+        exitMessage("This will create myTinyTodo database <br> <form method=post><input type=hidden name=install value=create><input type=submit value=' Install '></form>");
+    }
+    elseif ($install == 'create')
+    {
+        # install database
+        try {
+            createAllTables($db, $dbtype);
+        } catch (Exception $e) {
+            exitMessage("<b>Error:</b> ". htmlarray($e->getMessage()));
+        }
 
-		# create default list
-		$db->ex( "INSERT INTO {$db->prefix}lists (uuid,name,d_created,taskview) VALUES (?,?,?,?)", array(generateUUID(), 'Todo', time(), 1) );
+        # create default list
+        $db->ex( "INSERT INTO {$db->prefix}lists (uuid,name,d_created,taskview) VALUES (?,?,?,?)", array(generateUUID(), 'Todo', time(), 1) );
 
-		Config::save();
-	}
-	else {
-		exitMessage("Unknown action");
-	}
+        Config::save();
+    }
+    else {
+        exitMessage("Unknown action");
+    }
 }
 elseif ($ver == $lastVer)
 {
-	exitMessage("Installed version does not require database update.");
+    exitMessage("Installed version does not require database update.");
 }
 else
 {
-	if (!in_array($ver, array('1.4'))) {
-		exitMessage(htmlspecialchars("Can not update. Unsupported database version ($ver)."));
-	}
+    if (!in_array($ver, array('1.4'))) {
+        exitMessage(htmlspecialchars("Can not update. Unsupported database version ($ver)."));
+    }
 
-	if (!isset($_POST['update'])) {
-		exitMessage(htmlspecialchars("Update database v$ver to v$lastVer"). "<br><br>
-		<form name=frm method=post><input type=hidden name=update value=1>
-		<input type=submit value=' Update '>
-		</form>");
-	}
+    if (!isset($_POST['update'])) {
+        exitMessage(htmlspecialchars("Update database v$ver to v$lastVer"). "<br><br>
+        <form name=frm method=post><input type=hidden name=update value=1>
+        <input type=submit value=' Update '>
+        </form>");
+    }
 
-	# update process
-	if ($ver == '1.4')
-	{
-		update_14_17($db, $dbtype);
-	}
+    # update process
+    if ($ver == '1.4')
+    {
+        update_14_17($db, $dbtype);
+    }
 }
 
 echo "Done<br><br> <b>Attention!</b> Delete this file for security reasons. <br><br> Go to <a href='". htmlspecialchars(url_dir(getRequestUri())). "'>homepage</a>.";
@@ -178,358 +178,358 @@ printFooter();
 
 function createAllTables($db, $dbtype)
 {
-	if ($dbtype == 'mysql') {
-		createMysqlTables($db);
-	}
-	else {
-		createSqliteTables($db);
-	}
+    if ($dbtype == 'mysql') {
+        createMysqlTables($db);
+    }
+    else {
+        createSqliteTables($db);
+    }
 }
 
 
 function createMysqlTables($db)
 {
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}lists (
-	`id` INT UNSIGNED NOT NULL auto_increment,
-	`uuid` CHAR(36) NOT NULL default '',
-	`ow` INT NOT NULL default 0,
-	`name` VARCHAR(50) NOT NULL default '',
-	`d_created` INT UNSIGNED NOT NULL default 0,
-	`d_edited` INT UNSIGNED NOT NULL default 0,
-	`sorting` TINYINT UNSIGNED NOT NULL default 0,
-	`published` TINYINT UNSIGNED NOT NULL default 0,
-	`taskview` INT UNSIGNED NOT NULL default 0,
-	PRIMARY KEY(`id`),
-	UNIQUE KEY(`uuid`)
+    `id` INT UNSIGNED NOT NULL auto_increment,
+    `uuid` CHAR(36) NOT NULL default '',
+    `ow` INT NOT NULL default 0,
+    `name` VARCHAR(50) NOT NULL default '',
+    `d_created` INT UNSIGNED NOT NULL default 0,
+    `d_edited` INT UNSIGNED NOT NULL default 0,
+    `sorting` TINYINT UNSIGNED NOT NULL default 0,
+    `published` TINYINT UNSIGNED NOT NULL default 0,
+    `taskview` INT UNSIGNED NOT NULL default 0,
+    PRIMARY KEY(`id`),
+    UNIQUE KEY(`uuid`)
 ) CHARSET=utf8mb4 COLLATE utf8mb4_unicode_ci ");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}todolist (
-	`id` INT UNSIGNED NOT NULL auto_increment,
-	`uuid` CHAR(36) NOT NULL default '',
-	`list_id` INT UNSIGNED NOT NULL default 0,
-	`d_created` INT UNSIGNED NOT NULL default 0,   /* time() timestamp */
-	`d_completed` INT UNSIGNED NOT NULL default 0, /* time() timestamp */
-	`d_edited` INT UNSIGNED NOT NULL default 0,    /* time() timestamp */
-	`compl` TINYINT UNSIGNED NOT NULL default 0,
-	`title` VARCHAR(250) NOT NULL,
-	`note` TEXT,
-	`prio` TINYINT NOT NULL default 0,			/* priority -,0,+ */
-	`ow` INT NOT NULL default 0,				/* order weight */
-	`tags` VARCHAR(600) NOT NULL default '',	/* for fast access to task tags */
-	`tags_ids` VARCHAR(250) NOT NULL default '', /* no more than 22 tags (x11 chars) */
-	`duedate` DATE default NULL,
-	PRIMARY KEY(`id`),
-	KEY(`list_id`),
-	UNIQUE KEY(`uuid`)
+    `id` INT UNSIGNED NOT NULL auto_increment,
+    `uuid` CHAR(36) NOT NULL default '',
+    `list_id` INT UNSIGNED NOT NULL default 0,
+    `d_created` INT UNSIGNED NOT NULL default 0,   /* time() timestamp */
+    `d_completed` INT UNSIGNED NOT NULL default 0, /* time() timestamp */
+    `d_edited` INT UNSIGNED NOT NULL default 0,    /* time() timestamp */
+    `compl` TINYINT UNSIGNED NOT NULL default 0,
+    `title` VARCHAR(250) NOT NULL,
+    `note` TEXT,
+    `prio` TINYINT NOT NULL default 0,			/* priority -,0,+ */
+    `ow` INT NOT NULL default 0,				/* order weight */
+    `tags` VARCHAR(600) NOT NULL default '',	/* for fast access to task tags */
+    `tags_ids` VARCHAR(250) NOT NULL default '', /* no more than 22 tags (x11 chars) */
+    `duedate` DATE default NULL,
+    PRIMARY KEY(`id`),
+    KEY(`list_id`),
+    UNIQUE KEY(`uuid`)
 ) CHARSET=utf8mb4 COLLATE utf8mb4_unicode_ci ");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}tags (
-	`id` INT UNSIGNED NOT NULL auto_increment,
-	`name` VARCHAR(50) NOT NULL,
-	PRIMARY KEY(`id`),
-	UNIQUE KEY `name` (`name`)
+    `id` INT UNSIGNED NOT NULL auto_increment,
+    `name` VARCHAR(50) NOT NULL,
+    PRIMARY KEY(`id`),
+    UNIQUE KEY `name` (`name`)
 ) CHARSET=utf8mb4 COLLATE utf8mb4_unicode_ci ");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}tag2task (
-	`tag_id` INT UNSIGNED NOT NULL,
-	`task_id` INT UNSIGNED NOT NULL,
-	`list_id` INT UNSIGNED NOT NULL,
-	KEY(`tag_id`),
-	KEY(`task_id`),
-	KEY(`list_id`)		/* for tagcloud */
+    `tag_id` INT UNSIGNED NOT NULL,
+    `task_id` INT UNSIGNED NOT NULL,
+    `list_id` INT UNSIGNED NOT NULL,
+    KEY(`tag_id`),
+    KEY(`task_id`),
+    KEY(`list_id`)		/* for tagcloud */
 ) CHARSET=utf8mb4 COLLATE utf8mb4_unicode_ci ");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}settings (
-	`param_key`   VARCHAR(100) NOT NULL default '',
-	`param_value` TEXT,
-UNIQUE KEY `param_key` (`param_key`)
+    `param_key`   VARCHAR(100) NOT NULL default '',
+    `param_value` TEXT,
+    UNIQUE KEY `param_key` (`param_key`)
 ) CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}sessions (
-	`id`          VARCHAR(64) NOT NULL default '',		/* upto 64 bytes for sha256 */
-	`data`        TEXT,
-	`last_access` INT UNSIGNED NOT NULL default 0,		/* time() timestamp */
-	`expires`     INT UNSIGNED NOT NULL default 0,		/* time() timestamp */
-UNIQUE KEY `id` (`id`)
+    `id`          VARCHAR(64) NOT NULL default '',		/* upto 64 bytes for sha256 */
+    `data`        TEXT,
+    `last_access` INT UNSIGNED NOT NULL default 0,		/* time() timestamp */
+    `expires`     INT UNSIGNED NOT NULL default 0,		/* time() timestamp */
+    UNIQUE KEY `id` (`id`)
 ) CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ");
 }
 
 
 function createSqliteTables($db)
 {
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}lists (
-	id INTEGER PRIMARY KEY,
-	uuid CHAR(36) NOT NULL,
-	ow INTEGER NOT NULL default 0,
-	name VARCHAR(50) NOT NULL,
-	d_created INTEGER UNSIGNED NOT NULL default 0,
-	d_edited INTEGER UNSIGNED NOT NULL default 0,
-	sorting TINYINT UNSIGNED NOT NULL default 0,
-	published TINYINT UNSIGNED NOT NULL default 0,
-	taskview INTEGER UNSIGNED NOT NULL default 0
+    id INTEGER PRIMARY KEY,
+    uuid CHAR(36) NOT NULL,
+    ow INTEGER NOT NULL default 0,
+    name VARCHAR(50) NOT NULL,
+    d_created INTEGER UNSIGNED NOT NULL default 0,
+    d_edited INTEGER UNSIGNED NOT NULL default 0,
+    sorting TINYINT UNSIGNED NOT NULL default 0,
+    published TINYINT UNSIGNED NOT NULL default 0,
+    taskview INTEGER UNSIGNED NOT NULL default 0
 ) ");
 
-	$db->ex("CREATE UNIQUE INDEX lists_uuid ON {$db->prefix}lists (uuid)");
+    $db->ex("CREATE UNIQUE INDEX lists_uuid ON {$db->prefix}lists (uuid)");
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}todolist (
-	id INTEGER PRIMARY KEY,
-	uuid CHAR(36) NOT NULL,
-	list_id INTEGER UNSIGNED NOT NULL default 0,
-	d_created INTEGER UNSIGNED NOT NULL default 0,
-	d_completed INTEGER UNSIGNED NOT NULL default 0,
-	d_edited INTEGER UNSIGNED NOT NULL default 0,
-	compl TINYINT UNSIGNED NOT NULL default 0,
-	title VARCHAR(250) NOT NULL,
-	note TEXT,
-	prio TINYINT NOT NULL default 0,
-	ow INTEGER NOT NULL default 0,
-	tags VARCHAR(600) NOT NULL default '',
-	tags_ids VARCHAR(250) NOT NULL default '',
-	duedate DATE default NULL
+    id INTEGER PRIMARY KEY,
+    uuid CHAR(36) NOT NULL,
+    list_id INTEGER UNSIGNED NOT NULL default 0,
+    d_created INTEGER UNSIGNED NOT NULL default 0,
+    d_completed INTEGER UNSIGNED NOT NULL default 0,
+    d_edited INTEGER UNSIGNED NOT NULL default 0,
+    compl TINYINT UNSIGNED NOT NULL default 0,
+    title VARCHAR(250) NOT NULL,
+    note TEXT,
+    prio TINYINT NOT NULL default 0,
+    ow INTEGER NOT NULL default 0,
+    tags VARCHAR(600) NOT NULL default '',
+    tags_ids VARCHAR(250) NOT NULL default '',
+    duedate DATE default NULL
 ) ");
-	$db->ex("CREATE INDEX todo_list_id ON {$db->prefix}todolist (list_id)");
-	$db->ex("CREATE UNIQUE INDEX todo_uuid ON {$db->prefix}todolist (uuid)");
+    $db->ex("CREATE INDEX todo_list_id ON {$db->prefix}todolist (list_id)");
+    $db->ex("CREATE UNIQUE INDEX todo_uuid ON {$db->prefix}todolist (uuid)");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}tags (
-	id INTEGER PRIMARY KEY AUTOINCREMENT,
-	name VARCHAR(50) NOT NULL COLLATE NOCASE
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(50) NOT NULL COLLATE NOCASE
 ) ");
-	$db->ex("CREATE UNIQUE INDEX tags_name ON {$db->prefix}tags (name COLLATE NOCASE)");
+    $db->ex("CREATE UNIQUE INDEX tags_name ON {$db->prefix}tags (name COLLATE NOCASE)");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}tag2task (
-	tag_id INTEGER NOT NULL,
-	task_id INTEGER NOT NULL,
-	list_id INTEGER NOT NULL
+    tag_id INTEGER NOT NULL,
+    task_id INTEGER NOT NULL,
+    list_id INTEGER NOT NULL
 ) ");
-	$db->ex("CREATE INDEX tag2task_tag_id ON {$db->prefix}tag2task (tag_id)");
-	$db->ex("CREATE INDEX tag2task_task_id ON {$db->prefix}tag2task (task_id)");
-	$db->ex("CREATE INDEX tag2task_list_id ON {$db->prefix}tag2task (list_id)");	/* for tagcloud */
+    $db->ex("CREATE INDEX tag2task_tag_id ON {$db->prefix}tag2task (tag_id)");
+    $db->ex("CREATE INDEX tag2task_task_id ON {$db->prefix}tag2task (task_id)");
+    $db->ex("CREATE INDEX tag2task_list_id ON {$db->prefix}tag2task (list_id)");	/* for tagcloud */
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}settings (
-	param_key   VARCHAR(100) NOT NULL default '',
-	param_value TEXT
+    param_key   VARCHAR(100) NOT NULL default '',
+    param_value TEXT
 ) ");
 
-	$db->ex("CREATE UNIQUE INDEX settings_key ON {$db->prefix}settings (param_key COLLATE NOCASE)");
+    $db->ex("CREATE UNIQUE INDEX settings_key ON {$db->prefix}settings (param_key COLLATE NOCASE)");
 
 
-	$db->ex(
+    $db->ex(
 "CREATE TABLE {$db->prefix}sessions (
-	id          VARCHAR(64) NOT NULL default '',
-	data        TEXT,
-	last_access INTEGER UNSIGNED NOT NULL default 0,
-	expires     INTEGER UNSIGNED NOT NULL default 0
+    id          VARCHAR(64) NOT NULL default '',
+    data        TEXT,
+    last_access INTEGER UNSIGNED NOT NULL default 0,
+    expires     INTEGER UNSIGNED NOT NULL default 0
 ) ");
 
-	$db->ex("CREATE UNIQUE INDEX sessions_id ON {$db->prefix}sessions (id COLLATE NOCASE)");
+    $db->ex("CREATE UNIQUE INDEX sessions_id ON {$db->prefix}sessions (id COLLATE NOCASE)");
 }
 
 
 function databaseVersion(Database_Abstract $db): string
 {
-	if ( !$db ) return '';
-	if ( !$db->tableExists($db->prefix.'todolist') ) return '';
-	$v = '1.0';
-	if ( !$db->tableExists($db->prefix.'tags') ) return $v;
-	$v = '1.1';
-	if ( !$db->tableFieldExists($db->prefix.'todolist', 'duedate') ) return $v;
-	$v = '1.2';
-	if ( !$db->tableExists($db->prefix.'lists') ) return $v;
-	$v = '1.3.0';
-	if ( !$db->tableFieldExists($db->prefix.'todolist', 'd_completed') ) return $v;
-	$v = '1.3.1';
-	if ( !$db->tableFieldExists($db->prefix.'todolist', 'd_edited') ) return $v;
-	$v = '1.4';
-	if ( !$db->tableExists($db->prefix.'settings') ) return $v;
-	$v = '1.7';
-	return $v;
+    if ( !$db ) return '';
+    if ( !$db->tableExists($db->prefix.'todolist') ) return '';
+    $v = '1.0';
+    if ( !$db->tableExists($db->prefix.'tags') ) return $v;
+    $v = '1.1';
+    if ( !$db->tableFieldExists($db->prefix.'todolist', 'duedate') ) return $v;
+    $v = '1.2';
+    if ( !$db->tableExists($db->prefix.'lists') ) return $v;
+    $v = '1.3.0';
+    if ( !$db->tableFieldExists($db->prefix.'todolist', 'd_completed') ) return $v;
+    $v = '1.3.1';
+    if ( !$db->tableFieldExists($db->prefix.'todolist', 'd_edited') ) return $v;
+    $v = '1.4';
+    if ( !$db->tableExists($db->prefix.'settings') ) return $v;
+    $v = '1.7';
+    return $v;
 }
 
 function exitMessage($s)
 {
-	echo $s;
-	printFooter();
-	exit;
+    echo $s;
+    printFooter();
+    exit;
 }
 
 function printFooter()
 {
-	echo "</body></html>";
+    echo "</body></html>";
 }
 
 function tryToSaveDbConfig()
 {
-	if (!file_exists(MTTPATH.'config.php')) {
-		@touch(MTTPATH.'config.php');
-	}
-	if (!is_writable(MTTPATH.'config.php')) {
-		exitMessage("Database connection config file ('config.php') is not writable. You need to edit it manually, set contents to this and run setup once more. <br><br> \n".
-			"<textarea id='contents' style='width:90%; min-height:300px;'>\n".
-			htmlspecialchars(Config::dbConfigAsFileContents()).
-			"</textarea>\n".
-			"<script type='text/javascript'>document.getElementById('contents').select();</script>"
-		);
-	}
-	Config::saveDbConfig();
+    if (!file_exists(MTTPATH.'config.php')) {
+        @touch(MTTPATH.'config.php');
+    }
+    if (!is_writable(MTTPATH.'config.php')) {
+        exitMessage("Database connection config file ('config.php') is not writable. You need to edit it manually, set contents to this and run setup once more. <br><br> \n".
+            "<textarea id='contents' style='width:90%; min-height:300px;'>\n".
+            htmlspecialchars(Config::dbConfigAsFileContents()).
+            "</textarea>\n".
+            "<script type='text/javascript'>document.getElementById('contents').select();</script>"
+        );
+    }
+    Config::saveDbConfig();
 }
 
 function testConnect(&$error)
 {
-	$db = null;
-	try
-	{
-		if (!defined('MTT_DB_TYPE')) throw new Exception("MTT_DB_TYPE is not defined");
+    $db = null;
+    try
+    {
+        if (!defined('MTT_DB_TYPE')) throw new Exception("MTT_DB_TYPE is not defined");
 
-		if (MTT_DB_TYPE == 'mysql')
-		{
-			$hasPDO = false;
-			$hasMysqli = false;
-			if (defined('PDO::MYSQL_ATTR_FOUND_ROWS')) {
-				$hasPDO = true;
-			}
-			if (function_exists("mysqli_connect")) {
-				$hasMysqli = true;
-			}
+        if (MTT_DB_TYPE == 'mysql')
+        {
+            $hasPDO = false;
+            $hasMysqli = false;
+            if (defined('PDO::MYSQL_ATTR_FOUND_ROWS')) {
+                $hasPDO = true;
+            }
+            if (function_exists("mysqli_connect")) {
+                $hasMysqli = true;
+            }
 
-			$driver = '';
-			if (defined('MTT_DB_DRIVER')) {
-				// forced to use specific mysql interface
-				if ( in_array(MTT_DB_DRIVER, ['mysqli', 'pdo', '']) ) {
-					$driver = MTT_DB_DRIVER;
-					if ($driver == '') $driver = 'pdo'; // default
-				}
-				else {
-					throw new Exception("Unknown database driver");
-				}
-			}
+            $driver = '';
+            if (defined('MTT_DB_DRIVER')) {
+                // forced to use specific mysql interface
+                if ( in_array(MTT_DB_DRIVER, ['mysqli', 'pdo', '']) ) {
+                    $driver = MTT_DB_DRIVER;
+                    if ($driver == '') $driver = 'pdo'; // default
+                }
+                else {
+                    throw new Exception("Unknown database driver");
+                }
+            }
 
-			if ($driver == '') {
-				// auto-detect driver
-				if ($hasPDO) $driver = 'pdo';
-				else if ($hasMysqli) $driver = 'mysqli';
-			}
+            if ($driver == '') {
+                // auto-detect driver
+                if ($hasPDO) $driver = 'pdo';
+                else if ($hasMysqli) $driver = 'mysqli';
+            }
 
-			if ($driver == 'mysqli') {
-				if ($hasMysqli) {
-					require_once(MTTINC. 'class.db.mysqli.php');
-					if (!defined('MTT_DB_DRIVER')) define('MTT_DB_DRIVER', 'mysqli');
-				}
-				else {
-					throw new Exception("Required PHP extension 'MySQLi' is not installed.");
-				}
-			}
-			else {
-				if ($hasPDO) {
-					require_once(MTTINC. 'class.db.mysql.php');
-					if (!defined('MTT_DB_DRIVER')) define('MTT_DB_DRIVER', ''); // set pdo?
-				}
-				else {
-					throw new Exception("Required PHP extension 'PDO_MySQL' is not installed.");
-				}
-			}
+            if ($driver == 'mysqli') {
+                if ($hasMysqli) {
+                    require_once(MTTINC. 'class.db.mysqli.php');
+                    if (!defined('MTT_DB_DRIVER')) define('MTT_DB_DRIVER', 'mysqli');
+                }
+                else {
+                    throw new Exception("Required PHP extension 'MySQLi' is not installed.");
+                }
+            }
+            else {
+                if ($hasPDO) {
+                    require_once(MTTINC. 'class.db.mysql.php');
+                    if (!defined('MTT_DB_DRIVER')) define('MTT_DB_DRIVER', ''); // set pdo?
+                }
+                else {
+                    throw new Exception("Required PHP extension 'PDO_MySQL' is not installed.");
+                }
+            }
 
-			foreach (['MTT_DB_HOST', 'MTT_DB_USER', 'MTT_DB_PASSWORD', 'MTT_DB_NAME', 'MTT_DB_PREFIX'] as $c) {
-				if (!defined($c)) throw new Exception("$c is not defined");
-			}
+            foreach (['MTT_DB_HOST', 'MTT_DB_USER', 'MTT_DB_PASSWORD', 'MTT_DB_NAME', 'MTT_DB_PREFIX'] as $c) {
+                if (!defined($c)) throw new Exception("$c is not defined");
+            }
 
-			$db = new Database_Mysql;
-			$db->connect( array(
-				'host' => MTT_DB_HOST,
-				'user' => MTT_DB_USER,
-				'password' => MTT_DB_PASSWORD,
-				'db' => MTT_DB_NAME
-			));
-		}
-		else if (MTT_DB_TYPE == 'sqlite')
-		{
-			if (false === $f = @fopen(MTTPATH. 'db/todolist.db', 'a+')) {
-				throw new Exception("database file is not readable/writable");
-			}
-			else {
-				fclose($f);
-			}
-			if (!is_writable(MTTPATH. 'db/')) {
-				throw new Exception("database directory ('db') is not writable");
-			}
-			require_once(MTTINC. 'class.db.sqlite3.php');
-			$db = new Database_Sqlite3;
-			$db->connect( array( 'filename' => MTTPATH. 'db/todolist.db' ) );
-		}
-		else {
-			new Exception("Unsupported database type");
-		}
+            $db = new Database_Mysql;
+            $db->connect( array(
+                'host' => MTT_DB_HOST,
+                'user' => MTT_DB_USER,
+                'password' => MTT_DB_PASSWORD,
+                'db' => MTT_DB_NAME
+            ));
+        }
+        else if (MTT_DB_TYPE == 'sqlite')
+        {
+            if (false === $f = @fopen(MTTPATH. 'db/todolist.db', 'a+')) {
+                throw new Exception("database file is not readable/writable");
+            }
+            else {
+                fclose($f);
+            }
+            if (!is_writable(MTTPATH. 'db/')) {
+                throw new Exception("database directory ('db') is not writable");
+            }
+            require_once(MTTINC. 'class.db.sqlite3.php');
+            $db = new Database_Sqlite3;
+            $db->connect( array( 'filename' => MTTPATH. 'db/todolist.db' ) );
+        }
+        else {
+            new Exception("Unsupported database type");
+        }
 
-		if (!defined('MTT_DB_PREFIX')) define('MTT_DB_PREFIX', '');
-		$db->setPrefix(MTT_DB_PREFIX);
-	}
-	catch(Exception $e) {
-		//if (MTT_DEBUG) throw $e;
-		$error = $e->getMessage();
-		return null;
-	}
-	$error = '';
-	return $db;
+        if (!defined('MTT_DB_PREFIX')) define('MTT_DB_PREFIX', '');
+        $db->setPrefix(MTT_DB_PREFIX);
+    }
+    catch(Exception $e) {
+        //if (MTT_DEBUG) throw $e;
+        $error = $e->getMessage();
+        return null;
+    }
+    $error = '';
+    return $db;
 }
 
 function debugExceptionHandler($e)
 {
-	echo '<br><b>Error ('. htmlspecialchars(get_class($e)) .'):</b> \''. htmlspecialchars($e->getMessage()) .'\' in <i>'. htmlspecialchars($e->getFile() .':'. $e->getLine()). '</i>'.
-		"\n<pre>". htmlspecialchars($e->getTraceAsString()) . "</pre>\n";
-	exit;
+    echo '<br><b>Error ('. htmlspecialchars(get_class($e)) .'):</b> \''. htmlspecialchars($e->getMessage()) .'\' in <i>'. htmlspecialchars($e->getFile() .':'. $e->getLine()). '</i>'.
+        "\n<pre>". htmlspecialchars($e->getTraceAsString()) . "</pre>\n";
+    exit;
 }
 
 function myExceptionHandler($e)
 {
-	echo '<br><b>Error:</b> '. htmlspecialchars($e->getMessage()) ;
-	exit;
+    echo '<br><b>Error:</b> '. htmlspecialchars($e->getMessage()) ;
+    exit;
 }
 
 
 ### update v1.4 to v1.7 ##########
 function update_14_17(Database_Abstract $db, $dbtype)
 {
-	$db->ex("BEGIN");
+    $db->ex("BEGIN");
 
-	if($dbtype=='mysql')
-	{
-		# convert charset to utf8mb4
+    if($dbtype=='mysql')
+    {
+        # convert charset to utf8mb4
 
-		$db->ex("ALTER TABLE {$db->prefix}lists    CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
-		$db->ex("ALTER TABLE {$db->prefix}todolist CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
-		$db->ex("ALTER TABLE {$db->prefix}tags     CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
-		$db->ex("ALTER TABLE {$db->prefix}tag2task CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
+        $db->ex("ALTER TABLE {$db->prefix}lists    CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
+        $db->ex("ALTER TABLE {$db->prefix}todolist CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
+        $db->ex("ALTER TABLE {$db->prefix}tags     CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
+        $db->ex("ALTER TABLE {$db->prefix}tag2task CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
 
-		# create settings table
+        # create settings table
 
-		$db->ex(
+        $db->ex(
 "CREATE TABLE {$db->prefix}settings (
  `param_key`   VARCHAR(100) NOT NULL default '',
  `param_value` TEXT,
 UNIQUE KEY `param_key` (`param_key`)
 ) CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ");
 
-		# create sessions table
+        # create sessions table
 
-		$db->ex(
+        $db->ex(
 "CREATE TABLE {$db->prefix}sessions (
  `id`          VARCHAR(64) NOT NULL default '',
  `data`        TEXT,
@@ -538,20 +538,20 @@ UNIQUE KEY `param_key` (`param_key`)
 UNIQUE KEY `id` (`id`)
 ) CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci ");
 
-	}
+    }
 
-	else #sqlite
-	{
-		$db->ex(
+    else #sqlite
+    {
+        $db->ex(
 "CREATE TABLE {$db->prefix}settings (
  param_key   VARCHAR(100) NOT NULL default '',
  param_value TEXT
 ) ");
-		$db->ex("CREATE UNIQUE INDEX settings_key ON {$db->prefix}settings (param_key COLLATE NOCASE)");
+        $db->ex("CREATE UNIQUE INDEX settings_key ON {$db->prefix}settings (param_key COLLATE NOCASE)");
 
-		# sessions
+        # sessions
 
-		$db->ex(
+        $db->ex(
 "CREATE TABLE {$db->prefix}sessions (
  id          VARCHAR(100) NOT NULL default '',
  data        TEXT,
@@ -559,12 +559,12 @@ UNIQUE KEY `id` (`id`)
  expires     INTEGER UNSIGNED NOT NULL default 0
 ) ");
 
-		$db->ex("CREATE UNIQUE INDEX sessions_id ON {$db->prefix}sessions (id COLLATE NOCASE)");
-	}
+        $db->ex("CREATE UNIQUE INDEX sessions_id ON {$db->prefix}sessions (id COLLATE NOCASE)");
+    }
 
-	$db->ex("COMMIT");
+    $db->ex("COMMIT");
 
-	Config::save();
-	Config::saveDbConfig();
+    Config::save();
+    Config::saveDbConfig();
 }
 ### end of 1.7 #####