S2OJ/web/app/controllers/subdomain/blog/blog.php

<?php
	requireLib('bootstrap5');
	requireLib('mathjax');
	requireLib('hljs');
	requirePHPLib('form');

	if (!Auth::check() && UOJConfig::$data['switch']['force-login']) {
		redirectToLogin();
	}

	if (!isNormalUser($myUser) && UOJConfig::$data['switch']['force-login']) {
		become403Page();
	}

	if (!isset($_GET['id']) || !validateUInt($_GET['id']) || !($blog = queryBlog($_GET['id'])) || !UOJContext::isHis($blog)) {
		become404Page();
	}
	if ($blog['is_hidden'] && !UOJContext::hasBlogPermission()) {
		become403Page();
	}

	$solutions = DB::selectAll("select * from problems_solutions where blog_id = {$blog['id']}");
	if ($solutions) {
		foreach ($solutions as $solution) {
			$problem = queryProblemBrief($solution['problem_id']);

			if (!hasProblemPermission($myUser, $problem) && isRegisteredRunningContestProblem($myUser, $problem)) {
				become403Page();
			}
		}
	}
	
	$comment_form = new UOJForm('comment');
	$comment_form->addVTextArea('comment', '内容', '',
		function($comment) {
			global $myUser;
			if ($myUser == null) {
				return '请先登录';
			}
			if (!$comment) {
				return '评论不能为空';
			}
			if (strlen($comment) > 1000) {
				return '不能超过1000个字节';
			}
			return '';
		},
		null
	);
	$comment_form->handle = function() {
		global $myUser, $blog, $comment_form;
		$comment = HTML::escape($_POST['comment']);
		
		list($comment, $referrers) = uojHandleAtSign($comment, "/post/{$blog['id']}");
		
		$esc_comment = DB::escape($comment);
		DB::insert("insert into blogs_comments (poster, blog_id, content, reply_id, post_time, zan) values ('{$myUser['username']}', '{$blog['id']}', '$esc_comment', 0, now(), 0)");
		$comment_id = DB::insert_id();
		
		$rank = DB::selectCount("select count(*) from blogs_comments where blog_id = {$blog['id']} and reply_id = 0 and id < {$comment_id}");
		$page = floor($rank / 20) + 1;
		
		$uri = getLongTablePageUri($page) . '#' . "comment-{$comment_id}";
		$user_link = getUserLink($myUser['username']);

		foreach ($referrers as $referrer) {
			$content = $user_link . ' 在博客 ' . $blog['title'] . ' 的评论里提到你：<a href="' . $uri . '">点击此处查看</a>';
			sendSystemMsg($referrer, '有人提到你', $content);
		}
		
		if ($blog['poster'] !== $myUser['username']) {
			$content = $user_link . ' 回复了您的博客 ' . $blog['title'] . ' ：<a href="' . $uri . '">点击此处查看</a>';
			sendSystemMsg($blog['poster'], '博客新回复通知', $content);
		}
		
		$comment_form->succ_href = getLongTablePageRawUri($page);
	};
	$comment_form->ctrl_enter_submit = true;
	$comment_form->runAtServer();
	
	$reply_form = new UOJForm('reply');
	$reply_form->addHidden('reply_id', '0',
		function($reply_id, &$vdata) {
			global $blog;
			if (!validateUInt($reply_id) || $reply_id == 0) {
				return '您要回复的对象不存在';
			}
			$comment = queryBlogComment($reply_id);
			if (!$comment || $comment['blog_id'] != $blog['id']) {
				return '您要回复的对象不存在';
			}
			$vdata['parent'] = $comment;
			return '';
		},
		null
	);
	$reply_form->addVTextArea('reply_comment', '内容', '',
		function($comment) {
			global $myUser;
			if ($myUser == null) {
				return '请先登录';
			}
			if (!$comment) {
				return '评论不能为空';
			}
			if (strlen($comment) > 140) {
				return '不能超过140个字节';
			}
			return '';
		},
		null
	);
	$reply_form->handle = function(&$vdata) {
		global $myUser, $blog, $reply_form;
		$comment = HTML::escape($_POST['reply_comment']);
		
		list($comment, $referrers) = uojHandleAtSign($comment, "/post/{$blog['id']}");
		
		$reply_id = $_POST['reply_id'];
		
		$esc_comment = DB::escape($comment);
		DB::insert("insert into blogs_comments (poster, blog_id, content, reply_id, post_time, zan) values ('{$myUser['username']}', '{$blog['id']}', '$esc_comment', $reply_id, now(), 0)");
		$comment_id = DB::insert_id();
		
		$rank = DB::selectCount("select count(*) from blogs_comments where blog_id = {$blog['id']} and reply_id = 0 and id < {$reply_id}");
		$page = floor($rank / 20) + 1;
		
		$uri = getLongTablePageUri($page) . '#' . "comment-{$reply_id}";
		$user_link = getUserLink($myUser['username']);
		
		foreach ($referrers as $referrer) {
			$content = $user_link . ' 在博客 ' . $blog['title'] . ' 的评论里提到你：<a href="' . $uri . '">点击此处查看</a>';
			sendSystemMsg($referrer, '有人提到你', $content);
		}
		
		$parent = $vdata['parent'];
		$notified = array();
		if ($parent['poster'] !== $myUser['username']) {
			$notified[] = $parent['poster'];
			$content = $user_link . ' 回复了您在博客 ' . $blog['title'] . ' 下的评论：<a href="' . $uri . '">点击此处查看</a>';
			sendSystemMsg($parent['poster'], '评论新回复通知', $content);
		}
		if ($blog['poster'] !== $myUser['username'] && !in_array($blog['poster'], $notified)) {
			$notified[] = $blog['poster'];
			$content = $user_link . ' 回复了您的博客 ' . $blog['title'] . ' ：<a href="' . $uri . '">点击此处查看</a>';
			sendSystemMsg($blog['poster'], '博客新回复通知', $content);
		}
		
		$reply_form->succ_href = getLongTablePageRawUri($page);
	};
	$reply_form->ctrl_enter_submit = true;
	
	$reply_form->runAtServer();
	
	$comments_pag = new Paginator(array(
		'col_names' => array('*'),
		'table_name' => 'blogs_comments',
		'cond' => 'blog_id = ' . $blog['id'] . ' and reply_id = 0',
		'tail' => 'order by id asc',
		'page_len' => 20
	));
	?>
<?php echoUOJPageHeader(HTML::stripTags($blog['title']) . ' - 博客') ?>
<?php echoBlog($blog, array('show_title_only' => isset($_GET['page']) && $_GET['page'] != 1)) ?>
<h2>
	评论
	<i class="bi bi-chat-fill"></i>
</h2>
<div class="list-group">
<?php if ($comments_pag->isEmpty()): ?>
	<div class="list-group-item text-muted">暂无评论</div>
<?php else: ?>
	<?php foreach ($comments_pag->get() as $comment):
		$poster = queryUser($comment['poster']);
		$esc_email = HTML::escape($poster['email']);
		$asrc = HTML::avatar_addr($poster, 80);
		
		$replies = DB::selectAll("select id, poster, content, post_time from blogs_comments where reply_id = {$comment['id']} order by id");
		foreach ($replies as $idx => $reply) {
			$replies[$idx]['poster_realname'] = queryUser($reply['poster'])['realname'];
		}
		$replies_json = json_encode($replies);
		?>
	<div id="comment-<?= $comment['id'] ?>" class="list-group-item">
		<div class="d-flex">
			<div class="comtposterbox mr-3 flex-shrink-0">
				<a href="<?= HTML::url('/user/'.$poster['username']) ?>" class="d-none d-sm-block text-decoration-none">
					<img class="media-object img-rounded" src="<?= $asrc ?>" alt="avatar" />
				</a>
			</div>
			<div id="comment-body-<?= $comment['id'] ?>" class="comtbox flex-grow-1 ms-3">
				<div class="row">
					<div class="col-sm-6"><?= getUserLink($poster['username']) ?></div>
					<div class="col-sm-6 text-end"><?= getClickZanBlock('BC', $comment['id'], $comment['zan']) ?></div>
				</div>
				<div class="comtbox1"><?= $comment['content'] ?></div>
				<ul class="list-inline mb-0 text-end">
					<li>
						<small class="text-muted">
							<?= $comment['post_time'] ?>
						</small>
					</li>
					<li>
						<a class="text-decoration-none" id="reply-to-<?= $comment['id'] ?>" href="#">
							回复
						</a>
					</li>
				</ul>
				<?php if ($replies): ?>
				<div id="replies-<?= $comment['id'] ?>" class="comtbox5"></div>
				<?php endif ?>
				<script type="text/javascript">showCommentReplies('<?= $comment['id'] ?>', <?= $replies_json ?>);</script>
			</div>
		</div>
	</div>
	<?php endforeach ?>
<?php endif ?>
</div>
<?= $comments_pag->pagination() ?>

<h3 class="mt-4">发表评论</h3>
<p>可以用 @mike 来提到 mike 这个用户，mike 会被高亮显示。如果你真的想打“@”这个字符，请用“@@”。</p>
<?php $comment_form->printHTML() ?>

<div id="div-form-reply" style="display:none">
	<?php $reply_form->printHTML() ?>
</div>

<?php echoUOJPageFooter() ?>