feat: group announcement

db/app_uoj233.sql

@@ -442,6 +442,7 @@ UNLOCK TABLES;
 CREATE TABLE `groups` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `title` text NOT NULL,
+  `announcement` text NOT NULL DEFAULT '',
   `is_hidden` tinyint(1) NOT NULL DEFAULT 0,
   PRIMARY KEY (`id`)
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;

web/app/controllers/group.php

@@ -176,6 +176,24 @@
 			DB::query("delete from assignments where list_id='{$list_id}' and group_id={$group_id}");
 		};
 		$remove_assignment_form->runAtServer();
+
+        $announcement_form = new UOJForm('announcement_form');
+        $announcement_form->addVTextArea('announcement_content', '公告', $group['announcement'], 
+			function ($x) {
+				return '';
+			},
+			null
+		);
+        $announcement_form->submit_button_config['align'] = 'compressed';
+		$announcement_form->submit_button_config['text'] = '更新公告';
+		$announcement_form->handle = function() {
+			global $group_id, $myUser;
+
+			$content = $_POST['announcement_content'];
+			$esc_content = DB::escape($content);
+			DB::query("update groups set announcement = '{$esc_content}' where id = {$group_id}");
+		};
+		$announcement_form->runAtServer();
 	}
 	?>
 
@@ -258,6 +276,11 @@
     <?php $group_editor->printHTML(); ?>
 </div>
 
+<h5>编辑小组公告</h5>
+<div>
+	<?php $announcement_form->printHTML(); ?>
+</div>
+
 <h5>添加用户到小组</h5>
 <?php $add_new_user_form->printHTML(); ?>
 

web/app/controllers/index.php

@@ -2,16 +2,27 @@
 	$blogs = DB::selectAll("select blogs.id, title, poster, post_time from important_blogs, blogs where is_hidden = 0 and important_blogs.blog_id = blogs.id order by level desc, important_blogs.blog_id desc limit 5");
 	$countdowns = DB::selectAll("select * from countdowns order by endtime asc");
 	$friend_links = DB::selectAll("select * from friend_links order by level desc, id asc");
+
+	$REQUIRE_LIB['bootstrap5'] = '';
 	?>
 <?php echoUOJPageHeader(UOJConfig::$data['profile']['oj-name-short']) ?>
 <div class="row">
 	<div class="col-sm-12 col-md-9">
 		<div class="card card-default">
 			<div class="card-body">
+				<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+					<h4 class="card-title">
+						<?= UOJLocale::get('announcements') ?>
+					</h4>
+				<?php endif ?>
 				<table class="table table-sm">
 					<thead>
 						<tr>
-							<th style="width:60%"><?= UOJLocale::get('announcements') ?></th>
+							<th style="width:60%">
+								<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
+									<?= UOJLocale::get('announcements') ?>
+								<?php endif ?>
+							</th>
 							<th style="width:20%"></th>
 							<th style="width:20%"></th>
 						</tr>
@@ -27,7 +38,14 @@
 							}
 							?>
 							<tr>
-							<td><a href="/blogs/<?= $blog['id'] ?>"><?= $blog['title'] ?></a><?= $new_tag ?></td>
+								<td>
+									<a href="/blogs/<?= $blog['id'] ?>"
+										<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+										class="text-decoration-none"
+										<?php endif ?>
+										><?= $blog['title'] ?></a>
+									<?= $new_tag ?>
+								</td>
 								<td>by <?= getUserLink($blog['poster']) ?></td>
 								<td><small><?= $blog['post_time'] ?></small></td>
 							</tr>
@@ -35,17 +53,28 @@
 						<?php for ($i = $now_cnt + 1; $i <= 5; $i++): ?>
 							<tr><td colspan="233">&nbsp;</td></tr>
 						<?php endfor ?>
+						<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
 							<tr><td class="text-right" colspan="233"><a href="/announcements"><?= UOJLocale::get('all the announcements') ?></a></td></tr>
+						<?php endif ?>
 					</tbody>
 				</table>
+				<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+					<div class="text-end">
+						<a class="text-decoration-none" href="/announcements"><?= UOJLocale::get('all the announcements') ?></a>
+					</div>
+				<?php endif ?>
 			</div>
 		</div>
 		<?php if (Auth::check() && isNormalUser($myUser)): ?>
 			<div class="mt-4">
-				<h3><?= UOJLocale::get('top solver') ?></h3>
+				<h4><?= UOJLocale::get('top solver') ?></h4>
 				<?php echoRanklist(array('echo_full' => true, 'top10' => true, 'by_accepted' => true)) ?>
 				<div class="text-center">
-					<a href="/solverlist"><?= UOJLocale::get('view all') ?></a>
+					<a href="/solverlist"
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+						class="text-decoration-none"
+						<?php endif ?>
+						><?= UOJLocale::get('view all') ?></a>
 				</div>
 			</div>
 		<?php else: ?>
@@ -61,9 +90,16 @@
 			<img class="media-object img-thumbnail" src="/images/logo.png" alt="Logo" />
 		</div>
 		<div class="card card-default mt-4">
+			<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+			<div class="card-header">
+				<b>倒计时</b>
+			</div>
+			<?php endif ?>
 			<div class="card-body">
-				<h3 class="card-title" style="font-size: 1.25rem">倒计时</h3>
-				<ul class="pl-4 mb-0">
+				<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
+					<h4 class="card-title" style="font-size: 1.25rem">倒计时</h4>
+				<?php endif ?>
+				<ul class="list-unstyled mb-0">
 					<?php foreach ($countdowns as $countdown): ?>
 						<?php
 							$enddate = strtotime($countdown['endtime']);
@@ -79,18 +115,31 @@
 						</li>
 					<?php endforeach ?>
 				</ul>
+				<?php if (count($countdowns) == 0): ?>
+					<div class="text-center">（无）</div>
+				<?php endif ?>
 			</div>
 		</div>
 		<div class="card card-default mt-4">
+			<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+				<div class="card-header">
+					<b>友情链接</b>
+				</div>
+			<?php endif ?>
 			<div class="card-body">
-				<h3 class="card-title" style="font-size: 1.25rem">友情链接</h3>
-				<ul class="pl-4 mb-0">
+				<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
+				<h4 class="card-title" style="font-size: 1.25rem">友情链接</h4>
+				<?php endif ?>
+				<ul class="list-unstyled mb-0">
 					<?php foreach ($friend_links as $friend_link): ?>
 						<li>
 							<a href="<?= $friend_link['url'] ?>" target="_blank"><?= $friend_link['title'] ?></a>
 						</li>
 					<?php endforeach ?>
 				</ul>
+				<?php if (count($friend_links) == 0): ?>
+					<div class="text-center">（无）</div>
+				<?php endif ?>
 			</div>
 		</div>
 	</div>

web/app/libs/uoj-html-lib.php

@@ -156,6 +156,8 @@ function getLongTablePageUri($page) {
 }
 
 function echoLongTable($col_names, $table_name, $cond, $tail, $header_row, $print_row, $config) {
+	global $REQUIRE_LIB;
+
 	$pag_config = $config;
 	$pag_config['col_names'] = $col_names;
 	$pag_config['table_name'] = $table_name;
@@ -164,7 +166,11 @@ function echoLongTable($col_names, $table_name, $cond, $tail, $header_row, $prin
 	$pag = new Paginator($pag_config);
 
 	$div_classes = isset($config['div_classes']) ? $config['div_classes'] : array('table-responsive');
-	$table_classes = isset($config['table_classes']) ? $config['table_classes'] : array('table', 'table-bordered', 'table-hover', 'table-striped', 'table-text-center');
+	$table_classes = isset($config['table_classes'])
+		? $config['table_classes']
+		: isset($REQUIRE_LIB['bootstrap5'])
+			? array('table', 'table-bordered', 'table-striped', 'text-center')
+			: array('table', 'table-bordered', 'table-hover', 'table-striped', 'table-text-center');
 	
 	if (isset($config['head_pagination']) && $config['head_pagination']) {
 		echo $pag->pagination();
@@ -967,10 +973,15 @@ function echoUOJPageHeader($page_title, $extra_config = array()) {
 	uojIncludeView('page-header', $config);
 }
 function echoUOJPageFooter($config = array()) {
+	global $REQUIRE_LIB;
+	$config['REQUIRE_LIB'] = $REQUIRE_LIB;
+
 	uojIncludeView('page-footer', $config);
 }
 
 function echoRanklist($config = array()) {
+	global $REQUIRE_LIB;
+
 	$header_row = '';
 	$header_row .= '<tr>';
 	$header_row .= '<th style="width: 5em;">#</th>';

web/app/libs/uoj-query-lib.php

@@ -115,7 +115,7 @@ function queryGroup($id) {
 function queryUserInGroup($group_id, $username) {
 	return DB::selectFirst("select * from groups_users where username='$username' and group_id='$group_id'", MYSQLI_ASSOC);
 }
-function queryGroupOfUser($username) {
+function queryGroupsOfUser($username) {
 	return DB::selectAll("select b.title as title, b.id as id from groups_users a inner join groups b on a.group_id = b.id where a.username = '$username' and b.is_hidden = 0 order by id", MYSQLI_ASSOC);
 }
 function queryGroupmateCurrentAC($username) {

web/app/views/main-nav.php

@@ -1,29 +1,216 @@
+<?php
+	if (isset($REQUIRE_LIB['bootstrap5'])) {
+		$new_user_msg_num = DB::selectCount("select count(*) from user_msg where receiver = '".Auth::id()."' and read_time is null");
+		$new_system_msg_num = DB::selectCount("select count(*) from user_system_msg where receiver = '".Auth::id()."' and read_time is null");
+		$new_msg_tot = $new_user_msg_num + $new_system_msg_num;
+	}
+	?>
+
 <div class="navbar navbar-light navbar-expand-md bg-light mb-4" role="navigation">
-	<a class="navbar-brand" href="<?= HTML::url('/') ?>"><?= UOJConfig::$data['profile']['oj-name-short'] ?></a>
+	<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+	<div class="container">
+	<?php endif ?>
+		<a class="navbar-brand" href="<?= HTML::url('/') ?>">
+			<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+				<img src="<?= HTML::url('/images/logo_small.png') ?>" alt="Logo" width="24" height="24" class="d-inline-block align-text-top"/>
+			<?php endif ?>
+			<?= UOJConfig::$data['profile']['oj-name-short'] ?>
+		</a>
+
+		<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+		<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+		<?php else: ?>
 		<button type="button" class="navbar-toggler collapsed" data-toggle="collapse" data-target=".navbar-collapse">
+		<?php endif ?>
 			<span class="navbar-toggler-icon"></span>
 		</button>
+
 		<div class="collapse navbar-collapse" id="navbarSupportedContent">
 			<ul class="nav navbar-nav mr-auto">
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/contests') ?>"><span class="glyphicon glyphicon-stats"></span> <?= UOJLocale::get('contests') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/problems') ?>"><span class="glyphicon glyphicon-th-list"></span> <?= UOJLocale::get('problems') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/groups') ?>"><span class="glyphicon glyphicon-education"></span> <?= UOJLocale::get('groups') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/problem_lists') ?>"><span class="glyphicon glyphicon-list-alt"></span> <?= UOJLocale::get('problems lists') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/submissions') ?>"><span class="glyphicon glyphicon-tasks"></span> <?= UOJLocale::get('submissions') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/hacks') ?>"><span class="glyphicon glyphicon-flag"></span> <?= UOJLocale::get('hacks') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::blog_list_url() ?>"><span class="glyphicon glyphicon-edit"></span> <?= UOJLocale::get('blogs') ?></a></li>
-			<li class="nav-item"><a class="nav-link" href="<?= HTML::url('/faq') ?>"><span class="glyphicon glyphicon-info-sign"></span> <?= UOJLocale::get('help') ?></a></li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/contests') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-bar-chart-line-fill"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-stats"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('contests') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/problems') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-list-task"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-th-list"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('problems') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/groups') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-people-fill"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-education"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('groups') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/problem_lists') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-card-list"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-list-alt"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('problems lists') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/submissions') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-pie-chart-fill"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-tasks"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('submissions') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/hacks') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-flag-fill"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-flag"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('hacks') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::blog_list_url() ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-pencil-square"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-edit"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('blogs') ?>
+					</a>
+				</li>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/faq') ?>">
+						<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+							<i class="bi bi-question-circle-fill"></i>
+						<?php else: ?>
+							<span class="glyphicon glyphicon-info-sign"></span>
+						<?php endif ?>
+						<?= UOJLocale::get('help') ?>
+					</a>
+				</li>
 			</ul>
-		<form id="form-search-problem" class="form-inline my-2 my-lg-0" method="get">
-			 <div class="input-group">
-				<input type="text" class="form-control" name="search" id="input-search" placeholder="<?= UOJLocale::get('search')?>" />  
-				<div class="input-group-append">
-					<button type="submit" class="btn btn-search btn-outline-primary" id="submit-search"><span class="glyphicon glyphicon-search"></span></button>
+			<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+			<hr class="d-lg-none text-white-50">
+			<ul class="nav navbar-nav ms-md-auto">
+				<li class="nav-item dropdown">
+					<a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
+						<i class="bi bi-translate"></i>
+						<?= UOJLocale::get('_common_name') ?>
+					</a>
+					<ul class="dropdown-menu">
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url(UOJContext::requestURI(), array('params' => array('locale' => 'zh-cn'))) ?>">
+								中文
+							</a>
+						</li>
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url(UOJContext::requestURI(), array('params' => array('locale' => 'en'))) ?>">
+								English
+							</a>
+						</li>
+					</ul>
+				</li>
+				<?php if (Auth::check()): ?>
+				<li class="nav-item dropdown">
+					<a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
+						<i class="bi bi-person-fill"></i>
+						<span class="position-relative">
+							<?= Auth::id() ?>
+							<?php if ($new_msg_tot): ?>
+							<span class="badge bg-danger rounded-pill">
+								<?= $new_msg_tot > 99 ? "99+" : $new_msg_tot ?>
+							</span>
+							<?php endif ?>
+						</span>
+					</a>
+					<ul class="dropdown-menu">
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url('/user/profile/' . Auth::id()) ?>">
+								<?= UOJLocale::get('my profile') ?>
+							</a>
+						</li>
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url('/user/msg') ?>">
+								<?= UOJLocale::get('private message') ?>
+								<?php if ($new_user_msg_num): ?>
+								<span class="badge bg-danger rounded-pill">
+									<?= $new_user_msg_num > 99 ? "99+" : $new_user_msg_num ?>
+								</span>
+								<?php endif ?>
+							</a>
+						</li>
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url('/user/system-msg') ?>">
+								<?= UOJLocale::get('system message') ?>
+								<?php if ($new_system_msg_num): ?>
+								<span class="badge bg-danger rounded-pill">
+									<?= $new_system_msg_num > 99 ? "99+" : $new_system_msg_num ?>
+								</span>
+								<?php endif ?>
+							</a>
+						</li>
+						<?php if (isSuperUser(Auth::user())): ?>
+							<li>
+								<a class="dropdown-item" href="<?= HTML::url('/super-manage') ?>">
+									<?= UOJLocale::get('system manage') ?>
+								</a>
+							</li>
+						<?php endif ?>
+						<li>
+							<hr class="dropdown-divider">
+						</li>
+						<li>
+							<a class="dropdown-item" href="<?= HTML::url('/logout?_token=' . crsf_token()) ?>">
+								<?= UOJLocale::get('logout') ?>
+							</a>
+						</li>
+					</ul>
+				</li>
+				<?php else: ?>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/login') ?>">
+						<i class="bi bi-box-arrow-in-right"></i>
+						<?= UOJLocale::get('login') ?>
+					</a>
+				</li>
+				<?php if (!DB::selectCount("SELECT COUNT(*) FROM user_info")): ?>
+				<li class="nav-item">
+					<a class="nav-link" href="<?= HTML::url('/register') ?>">
+						<i class="bi bi-person-plus-fill"></i>
+						<?= UOJLocale::get('register') ?>
+					</a>
+				</li>
+				<?php endif ?>
+				<?php endif ?>
+			</ul>
+			<?php endif ?>
 		</div>
+	
+	<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
 	</div>
-		</form>
-	</div><!--/.nav-collapse -->
+	<?php endif ?>
 </div>
+
+<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
 <script type="text/javascript">
 	var zan_link = '';
 	$('#form-search-problem').submit(function(e) {
@@ -42,3 +229,4 @@
 		location.href = url;
 	});
 </script>
+<?php endif ?>

web/app/views/page-footer.php

@@ -5,6 +5,26 @@
 	?>
 			</div>
 			<?php if ($ShowPageFooter): ?>
+				<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+					<footer class="bg-light text-muted pt-3 pb-4" style="font-size: 0.9em">
+						<div class="container d-lg-flex justify-content-lg-between">
+							<p>
+								&copy; <?= date('Y') ?>
+								<a class="text-decoration-none" href="https://github.com/renbaoshuo/S2OJ<?= UOJConfig::$data['profile']['s2oj-version'] == "dev" ? '' : '/tree/' . UOJConfig::$data['profile']['s2oj-version'] ?>">S2OJ</a>
+								(build: <?= UOJConfig::$data['profile']['s2oj-version'] ?>)
+								<?= UOJLocale::get('server time') ?>: <?= UOJTime::$time_now_str ?>
+							</p>
+							<p>
+								Based on
+								<a class="text-decoration-none" href="https://uoj.ac" target="_blank">UOJ</a>,
+								modified by
+								<a class="text-decoration-none" href="https://baoshuo.ren" target="_blank">Baoshuo</a>
+								for
+								<a class="text-decoration-none" href="http://www.sjzez.com">SJZEZ</a>.
+							</p>
+						</div>
+					</footer>
+				<?php else: ?>
 					<div class="uoj-footer">
 						<div class="btn-group dropright mb-3">
 							<button type="button" class="btn btn-sm btn-outline-secondary dropdown-toggle" data-toggle="dropdown">
@@ -25,6 +45,7 @@
 						</p>
 					</div>
 				<?php endif ?>
+			<?php endif ?>
 		</div>
 		<!-- /container -->
 	</body>

web/app/views/page-header.php

@@ -1,4 +1,5 @@
 <?php
+	if (!isset($REQUIRE_LIB['bootstrap5'])) {
 		$new_user_msg_num = DB::selectCount("select count(*) from user_msg where receiver = '".Auth::id()."' and read_time is null");
 		$new_system_msg_num = DB::selectCount("select count(*) from user_system_msg where receiver = '".Auth::id()."' and read_time is null");
 		$new_msg_tot = $new_user_msg_num + $new_system_msg_num;
@@ -18,6 +19,7 @@
 		} else {
 			$new_msg_tot_html = '<sup><span class="badge badge-pill badge-secondary">'.$new_msg_tot.'</span></sup>';
 		}
+	}
 
 	if (!isset($PageMainTitle)) {
 		$PageMainTitle = UOJConfig::$data['profile']['oj-name'];
@@ -41,13 +43,24 @@
 		
 		<script type="text/javascript">uojHome = ''; // '<?= HTML::url('/') ?>'</script>
 
+		<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+		<!-- Bootstrap 5 (CSS) -->
+		<?= HTML::css_link('/css/bootstrap5.min.css?v=5.2.1') ?>
+		<!-- Bootstrap Icons -->
+		<?= HTML::css_link('/css/bootstrap-icons.min.css?v=2022.9.23') ?>
+		<?php else: ?>
 		<!-- Bootstrap core CSS -->
 		<?= HTML::css_link('/css/bootstrap.min.css?v=2019.5.31') ?>
 		<!-- Bootstrap Glyphicons CSS-->
 		<?= HTML::css_link('/css/bootstrap-glyphicons.min.css?v=2019.5.31') ?>
+		<?php endif ?>
 
+		<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+		<?= HTML::css_link('/css/uoj-bs5.css?v=' . UOJConfig::$data['profile']['css-version']) ?>
+		<?php else: ?>
 		<!-- Custom styles for this template -->
 		<?= HTML::css_link('/css/uoj-theme.css?v=' . UOJConfig::$data['profile']['s2oj-version']) ?>
+		<?php endif ?>
 		
 		<!-- jQuery (necessary for Bootstrap\'s JavaScript plugins) -->
 		<?= HTML::js_src('/js/jquery.min.js') ?>
@@ -71,9 +84,13 @@
 		<?= HTML::js_src('/js/jquery.tagcanvas.min.js') ?>
 		<?php endif ?>
 		
+		<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+		<?= HTML::js_src('/js/bootstrap5.bundle.min.js?v=2022.9.23') ?>
+		<?php else: ?>
 		<!-- Include all compiled plugins (below), or include individual files as needed -->
 		<?= HTML::js_src('/js/popper.min.js?v=2019.5.31') ?>
 		<?= HTML::js_src('/js/bootstrap.min.js?v=2019.5.31') ?>
+		<?php endif ?>
 		
 		<!-- Color converter -->
 		<?= HTML::js_src('/js/color-converter.min.js') ?>
@@ -219,9 +236,16 @@
 		});
 		</script>
 	</head>
-	<body role="document">
+	<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+	<body class="d-flex flex-column min-vh-100">
+	<?php else: ?>
+	<body>
+	<?php endif ?>
+		<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
 		<div class="container theme-showcase" role="main">
+		<?php endif ?>
 			<?php if ($ShowPageHeader): ?>	
+			<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
 			<div>
 				<ul class="nav nav-pills float-right" role="tablist">
 				<?php if (Auth::check()): ?>
@@ -255,8 +279,49 @@
 				</h1>
 				<h1 class="d-block d-sm-none"><?= $PageMainTitleOnSmall ?></h1>
 			</div>
-			
-			<?php uojIncludeView($PageNav) ?>
 			<?php endif ?>
 
+			<?php uojIncludeView($PageNav, array('REQUIRE_LIB' => $REQUIRE_LIB)) ?>
+
+			<?php if (!isset($REQUIRE_LIB['bootstrap5'])): ?>
+			<?php if (Auth::check()): ?>
+			<?php $groups = queryGroupsOfUser(Auth::id()); ?>
+			<?php if (count($groups)): ?>
+			<div class="card card-default mb-2" id="group-user-announcements">
+				<div class="card-header">
+					小组公告
+				</div>
+				<ul class="list-group list-group-flush">
+					<?php foreach ($groups as $group): ?>
+						<?php
+							$group_detail = DB::selectFirst("select * from groups where id = {$group['id']}");
+							$group_announcement = $group_detail['announcement'];
+						?>
+						<li class="list-group-item">
+							<a href="<?= HTML::url('/group/'.$group['id']) ?>">
+								<b><?= $group['title'] ?></b>
+							</a>
+							<?php if ($group_announcement): ?>
+							<div id="announcement-content-<?= $group['id'] ?>"></div>
+							<script>(function(){
+								$('#announcement-content-<?= $group['id'] ?>')
+									.html(DOMPurify.sanitize(decodeURIComponent("<?= urlencode($group_announcement) ?>"), <?= DOM_SANITIZE_CONFIG ?>)); 
+							})();</script>
+							<?php else: ?>
+							<div>（暂无公告）</div>
+							<?php endif ?>
+						</li>
+					<?php endforeach ?>
+				</ul>
+			</div>
+			<?php endif ?>
+			<?php endif ?>
+			<?php endif ?>
+			<?php endif ?>
+			
+			
+		<?php if (isset($REQUIRE_LIB['bootstrap5'])): ?>
+			<div class="uoj-content container flex-fill">
+		<?php else: ?>
 			<div class="uoj-content">
+		<?php endif ?>

web/css/uoj-bs5.css

@@ -0,0 +1,4 @@
+.uoj-username {
+	font-weight: 800;
+	text-decoration: none;
+}