feat: add problems_solutions

db/app_uoj233.sql

@@ -632,6 +632,28 @@ LOCK TABLES `problems_permissions` WRITE;
 /*!40000 ALTER TABLE `problems_permissions` ENABLE KEYS */;
 UNLOCK TABLES;
 
+--
+-- Table structure for table `problems_solutions`
+--
+
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8mb4 */;
+CREATE TABLE `problems_solutions` (
+  `problem_id` int(11) NOT NULL,
+  `blog_id` int(11) NOT NULL,
+  PRIMARY KEY (`problem_id`, `blog_id`)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `problems_solutions`
+--
+
+LOCK TABLES `problems_solutions` WRITE;
+/*!40000 ALTER TABLE `problems_solutions` DISABLE KEYS */;
+/*!40000 ALTER TABLE `problems_solutions` ENABLE KEYS */;
+UNLOCK TABLES;
+
 --
 -- Table structure for table `problems_tags`
 --

web/app/controllers/problem.php

@@ -314,6 +314,9 @@ $('#contest-countdown').countdown(<?= $contest['end_time']->getTimestamp() - UOJ
 	<?php if ($custom_test_requirement): ?>
 	<li class="nav-item"><a class="nav-link" href="#tab-custom-test" role="tab" data-toggle="tab"><span class="glyphicon glyphicon-console"></span> <?= UOJLocale::get('problems::custom test') ?></a></li>
 	<?php endif ?>
+	<?php if (!$contest): ?>
+	<li class="nav-item"><a class="nav-link" href="/problem/<?= $problem['id'] ?>/solutions" role="tab"><?= UOJLocale::get('problems::solutions') ?></a></li>
+	<?php endif ?>
 	<?php if (hasProblemPermission($myUser, $problem)): ?>
 	<li class="nav-item"><a class="nav-link" href="/problem/<?= $problem['id'] ?>/manage/statement" role="tab"><?= UOJLocale::get('problems::manage') ?></a></li>
 	<?php endif ?>
@@ -408,6 +411,14 @@ $('#contest-countdown').countdown(<?= $contest['end_time']->getTimestamp() - UOJ
 			</a>
 		</li>
 		<?php endif ?>
+		<?php if (!$contest): ?>
+		<li class="nav-item text-start">
+			<a href="/problem/<?= $problem['id'] ?>/solutions" class="nav-link" role="tab">
+				<i class="bi bi-journal-bookmark"></i>
+				<?= UOJLocale::get('problems::solutions') ?>
+			</a>
+		</li>
+		<?php endif ?>
 		<?php if (hasProblemPermission($myUser, $problem)): ?>
 		<li class="nav-item text-start">
 			<a class="nav-link" href="/problem/<?= $problem['id'] ?>/manage/statement" role="tab">

web/app/controllers/problem_solutions.php

@@ -0,0 +1,280 @@
+<?php
+	requirePHPLib('form');
+	requirePHPLib('judger');	
+
+	if (!Auth::check()) {
+		become403Page(UOJLocale::get('need login'));
+	}
+
+	if (!validateUInt($_GET['id']) || !($problem = queryProblemBrief($_GET['id']))) {
+		become404Page();
+	}
+
+	$problem_extra_config = getProblemExtraConfig($problem);
+	$solution_viewable = hasViewSolutionPermission($problem_extra_config['view_solution_type'], $myUser, $problem);
+	$solution_submittable = hasViewSolutionPermission($problem_extra_config['submit_solution_type'], $myUser, $problem);
+
+	if (!$solution_viewable) {
+		become403Page();
+	}
+
+	$REQUIRE_LIB['bootstrap5'] = '';
+
+	function removeSolutionForm($blog_id) {
+		$res_form = new UOJForm("remove_solution_{$blog_id}");
+		$res_form->addHidden("blog_id", $blog_id, function($blog_id) {
+			global $myUser, $problem;
+
+			if (!validateUInt($blog_id)) {
+				return '博客 ID 不是有效的数字';
+			}
+
+			$blog = queryBlog($blog_id);
+			if (!$blog) {
+				return '博客不存在';
+			}
+
+			if (!hasProblemPermission($myUser, $problem)) {
+				if ($blog['poster'] != $myUser['username']) {
+					return '您只能删除自己的题解';
+				}
+			}
+
+			return '';
+		}, null);
+		$res_form->handle = function() {
+			global $myUser, $problem;
+
+			$blog_id = $_POST["blog_id"];
+			DB::query("delete from problems_solutions where problem_id = {$problem['id']} and blog_id = {$blog_id}");
+			$blog = queryBlog($blog_id);
+
+			if ($blog['poster'] != $myUser['username']) {
+				$blog_link = getBlogLink($blog['id']);
+				$poster_user_link = getUserLink($blog['poster']);
+				$admin_user_link = getUserLink($myUser['username']);
+				$content = <<<EOD
+<p>{$poster_user_link} 您好：</p>
+<p>您为问题 <a href="/problem/{$problem['id']}">#{$problem['id']} ({$problem['title']})</a> 提交的题解 {$blog_link} 已经被管理员 {$admin_user_link} 移除。 </p>
+EOD;
+				sendSystemMsg($blog['poster'], '题解移除通知', $content);
+			}
+		};
+		$res_form->submit_button_config['margin_class'] = 'mt-0';
+		$res_form->submit_button_config['class_str'] = 'btn btn-link text-decoration-none text-danger p-0';
+		$res_form->submit_button_config['text'] = '移除';
+		$res_form->submit_button_config['align'] = 'inline';
+
+		return $res_form;
+	}
+
+	if ($solution_submittable) {
+		$add_new_solution_form = new UOJForm('add_new_solution');
+		$add_new_solution_form->addVInput('blog_id_2', 'text', '博客 ID', '', 
+			function ($x) {
+				global $myUser, $problem, $solution_submittable;
+
+				if (!validateUInt($x)) {
+					return 'ID 不合法';
+				}
+
+				$blog = queryBlog($x);
+				if (!$blog) {
+					return '博客不存在';
+				}
+
+				if (!isSuperUser($myUser)) {
+					if ($blog['poster'] != $myUser['username']) {
+						if ($blog['is_hidden']) {
+							return '博客不存在';
+						}
+
+						return '只能提交本人撰写的博客';
+					}
+				}
+
+				if ($blog['is_hidden']) {
+					return '只能提交公开的博客';
+				}
+
+				if (querySolution($problem['id'], $x)) {
+					return '该题解已提交';
+				}
+
+				if (!$solution_submittable) {
+					return '您无权提交题解';
+				}
+
+				return '';
+			},
+			null
+		);
+		$add_new_solution_form->submit_button_config['text'] = '发布';
+		$add_new_solution_form->submit_button_config['align'] = 'center';
+		$add_new_solution_form->handle = function() {
+			global $problem, $myUser;
+
+			$blog_id_2 = $_POST['blog_id_2'];
+			$problem_id = $problem['id'];
+
+			DB::insert("insert into problems_solutions (problem_id, blog_id) values ({$problem_id}, {$blog_id_2})");
+		};
+		$add_new_solution_form->runAtServer();
+	}
+
+	$pag_config = array('page_len' => 5);
+	$pag_config['col_names'] = array('blog_id', 'content', 'poster', 'post_time', 'zan');
+	$pag_config['table_name'] = "problems_solutions inner join blogs on problems_solutions.blog_id = blogs.id";
+	$pag_config['cond'] = "problem_id = {$problem['id']} and is_hidden = 0";
+	$pag_config['tail'] = "order by zan desc, post_time desc, id asc";
+	$pag = new Paginator($pag_config);
+
+	$rows = [];
+
+	foreach ($pag->get() as $idx => $row) {
+		$rows[$idx] = $row;
+		if ($row['poster'] == $myUser['username'] || hasProblemPermission($myUser, $problem)) {
+			$removeForm = removeSolutionForm($row['blog_id']);
+			$removeForm->runAtServer();
+			$rows[$idx]['removeForm'] = $removeForm;
+		}
+	}
+	?>
+<?php
+	$REQUIRE_LIB['mathjax'] = '';
+	$REQUIRE_LIB['hljs'] = '';
+	?>
+
+<?php echoUOJPageHeader(UOJLocale::get('problems::solutions') . ' - ' . HTML::stripTags($problem['title'])) ?>
+
+<div class="row">
+
+<!-- Left col -->
+<div class="col-lg-9">
+
+<div class="card card-default mb-2">
+	<div class="card-body">
+		<h1 class="h2 card-title text-center">
+			#<?= $problem['id']?>. <?= $problem['title'] ?>
+		</h1>
+	</div>
+
+	<ul class="list-group list-group-flush">
+		<?php foreach ($rows as $row): ?>
+			<li class="list-group-item">
+				<?php $poster = queryUser($row['poster']); ?>
+				<div class="mb-3">
+					<span class="me-2 d-inline-block">
+						<a class="text-decoration-none" href="<?= HTML::url('/user/profile/'.$poster['username']) ?>">
+							<img src="<?= HTML::avatar_addr($poster, 64) ?>" width="32" height="32" class="rounded" />
+						</a>
+						<?= getUserLink($poster['username']) ?>
+					</span>
+					<span class="text-muted small d-inline-block">
+						<?= UOJLocale::get('post time') ?>:
+						<time class="text-muted"><?= $row['post_time'] ?></time>
+					</span>
+				</div>
+
+				<div class="markdown-body">
+					<?= $row['content'] ?>
+				</div>
+
+				<div class="mt-3 text-end">
+					<?php if (isset($row['removeForm'])): ?>
+						<?php $row['removeForm']->printHTML(); ?>
+					<?php endif ?>
+					<a class="text-decoration-none" href="/blogs/<?= $row['blog_id'] ?>">在 Ta 的博客上查看</a>
+					<?= getClickZanBlock('B', $row['blog_id'], $row['zan']) ?>
+				</div>
+			</li>
+		<?php endforeach ?>
+		<?php if ($pag->isEmpty()): ?>
+			<div class="text-center py-2">
+				暂无题解
+			</div>
+		<?php endif ?>
+	</ul>
+</div>
+
+<!-- Pagination -->
+<div class="text-center">
+	<?= $pag->pagination(); ?>
+</div>
+
+<!-- End left col -->
+</div>
+
+<!-- Right col -->
+<aside class="col mt-3 mt-lg-0">
+
+<div class="card card-default mb-2">
+	<ul class="nav nav-pills nav-fill flex-column" role="tablist">
+		<li class="nav-item text-start">
+			<a href="/problem/<?= $problem['id'] ?>" class="nav-link" role="tab">
+				<i class="bi bi-journal-text"></i>
+				<?= UOJLocale::get('problems::statement') ?>
+			</a>
+		</li>
+		<li class="nav-item text-start">
+			<a href="#" class="nav-link active" role="tab">
+				<i class="bi bi-journal-bookmark"></i>
+				<?= UOJLocale::get('problems::solutions') ?>
+			</a>
+		</li>
+		<?php if (hasProblemPermission($myUser, $problem)): ?>
+		<li class="nav-item text-start">
+			<a class="nav-link" href="/problem/<?= $problem['id'] ?>/manage/statement" role="tab">
+				<i class="bi bi-sliders"></i>
+				<?= UOJLocale::get('problems::manage') ?>
+			</a>
+		</li>
+		<?php endif ?>
+	</ul>
+</div>
+
+<div class="card card-default mb-2">
+	<ul class="nav nav-fill flex-column">
+		<li class="nav-item text-start">
+			<a class="nav-link" href="<?= HTML::url("/download.php?type=problem&id={$problem['id']}") ?>">
+				<i class="bi bi-hdd-stack"></i>
+				测试数据
+			</a>
+		</li>
+		<li class="nav-item text-start">
+			<a class="nav-link" href="<?= HTML::url("/download.php?type=attachment&id={$problem['id']}") ?>">
+				<i class="bi bi-download"></i>
+				附件下载
+			</a>
+		</li>
+		<li class="nav-item text-start">
+			<a class="nav-link" href="/problem/<?= $problem['id'] ?>/statistics">
+				<i class="bi bi-graph-up"></i>
+				<?= UOJLocale::get('problems::statistics') ?>
+			</a>
+		</li>
+	</ul>
+	<div class="card-footer bg-transparent">
+		评价：<?= getClickZanBlock('P', $problem['id'], $problem['zan']) ?>
+	</div>
+</div>
+
+<?php if (isset($add_new_solution_form)): ?>
+<div class="card card-default mb-2">
+	<div class="card-header bg-transparent">
+		增加题解
+	</div>
+	<div class="card-body">
+		<?php $add_new_solution_form->printHTML(); ?>
+	</div>
+</div>
+<?php endif ?>
+
+<?php uojIncludeView('sidebar', array()); ?>
+
+<!-- End right col -->
+</aside>
+
+</div>
+
+<?php echoUOJPageFooter() ?>

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

@@ -430,7 +430,7 @@ EOD
 				} else {
 					echo '<div class="text-', $this->submit_button_config['align'], '">';
 				}
-				echo '<button type="submit" id="button-submit-', $this->form_name, '" name="submit-', $this->form_name, '" value="', $this->form_name, '" class="mt-2 ', $this->submit_button_config['class_str'], '">', $this->submit_button_config['text'], '</button>';
+				echo '<button type="submit" id="button-submit-', $this->form_name, '" name="submit-', $this->form_name, '" value="', $this->form_name, '" class="', (isset($this->submit_button_config['margin_class']) ? $this->submit_button_config['margin_class'] : 'mt-2'), ' ', $this->submit_button_config['class_str'], '">', $this->submit_button_config['text'], '</button>';
 				if ($this->submit_button_config['align'] == 'offset') {
 					echo '</div>';
 				}

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

@@ -25,6 +25,19 @@ function hasViewPermission($str, $user, $problem, $submission) {
 	return false;
 }
 
+function hasViewSolutionPermission($str, $user, $problem) {
+	if (isSuperUser($user)) {
+		return true;
+	}
+	if ($str == 'ALL') {
+		return true;
+	}
+	if ($str == 'ALL_AFTER_AC') {
+		return hasAC($user, $problem);
+	}
+	return false;
+}
+
 function hasContestPermission($user, $contest) {
 	if ($user == null) {
 		return false;
@@ -87,6 +100,10 @@ function queryProblemInList($list_id, $problem_id) {
 	return DB::selectFirst("select * from lists_problems where list_id='$blog_id' and problem_id='$problem_id'", MYSQLI_ASSOC);
 }
 
+function querySolution($problem_id, $blog_id) {
+	return DB::selectFirst("select * from problems_solutions where blog_id='$blog_id' and problem_id='$problem_id'", MYSQLI_ASSOC);
+}
+
 function queryContestProblemRank($contest, $problem) {
 	if (!DB::selectFirst("select * from contests_problems where contest_id = {$contest['id']} and problem_id = {$problem['id']}")) {
 		return null;

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

@@ -181,7 +181,9 @@ function getProblemExtraConfig($problem) {
 	$default_extra_config = array(
 		'view_content_type' => 'ALL',
 		'view_all_details_type' => 'ALL',
-		'view_details_type' => 'ALL'
+		'view_details_type' => 'ALL',
+		'view_solution_type' => 'ALL',
+		'submit_solution_type' => 'ALL_AFTER_AC',
 	);
 	
 	mergeConfig($extra_config, $default_extra_config);

web/app/locale/basic/en.php

@@ -50,6 +50,7 @@ return [
 	'title' => 'Title',
 	'content' => 'Content',
 	'time' => 'Time',
+	'post time' => 'Post time',
 	'none' => 'None',
 	'user profile' => 'User profile',
 	'send private message' => 'Send private message',

web/app/locale/basic/zh-cn.php

@@ -50,6 +50,7 @@ return [
 	'title' => '标题',
 	'content' => '内容',
 	'time' => '时间',
+	'post time' => '发布时间',
 	'none' => '无',
 	'user profile' => '用户信息',
 	'send private message' => '发送私信',

web/app/locale/problems/en.php

@@ -17,6 +17,7 @@ return [
 	'statement' => 'Statement',
 	'custom test' => 'Custom Test',
 	'manage' => 'Manage',
+	'solutions' => 'Solutions',
 	'statistics' => 'Statistics',
 	'run' => 'Run',
 	'source code' => 'Source code',

web/app/locale/problems/zh-cn.php

@@ -18,6 +18,7 @@ return [
 	'manage' => '管理',
 	'submissions statistics' => '统计提交情况',
 	'statistics' => '统计',
+	'solutions' => '题解',
 	'run' => '运行',
 	'source code' => '源文件',
 	'text file' => '文本文件',

web/app/route.php

@@ -14,6 +14,7 @@ Route::group([
 		Route::any('/problems', '/problem_set.php');
 		Route::any('/problems/template', '/problem_set.php?tab=template');
 		Route::any('/problem/{id}', '/problem.php');
+		Route::any('/problem/{id}/solutions', '/problem_solutions.php');
 		Route::any('/problem/{id}/statistics', '/problem_statistics.php');
 		Route::any('/problem/{id}/manage/statement', '/problem_statement_manage.php');
 		Route::any('/problem/{id}/manage/managers', '/problem_managers_manage.php');

web/app/views/blog-preview.php

@@ -16,7 +16,7 @@
 	?>
 <link rel="stylesheet" type="text/css" href="<?= HTML::url('/css/markdown.css') ?>">
 <h2><?= $extra_text ?><a class="header-a" href="<?= HTML::blog_url(UOJContext::userid(), '/post/'.$blog['id']) ?>"><?= $blog['title'] ?></a></h2>
-<div><?= $blog['post_time'] ?> <strong>By</strong> <?= getUserLink($blog['poster']) ?></div>
+<div><?= $blog['post_time'] ?> <strong>By</strong> <?= getUserLink($blog['poster']) ?> (<strong>博客 ID: </strong> <?= $blog['id'] ?>)</div>
 <?php if (!$show_title_only): ?>
 <div class="card mb-4">
 	<div class="card-body">

web/css/uoj-bs5.css

@@ -160,3 +160,56 @@ label {
 .markdown-body table th[align='right'] {
 	text-align: right;
 }
+
+form.uoj-form-inline {
+	display: inline-block;
+	margin-right: 0.3em;
+}
+
+form.uoj-form-narrow label.col-sm-2 {
+	max-width: 100% !important;
+	padding: 0 !important;
+}
+
+form.uoj-form-narrow div.col-sm-3 {
+	max-width: 100% !important;
+	padding: 0 !important;
+}
+
+form.form-horizontal {
+	margin-bottom: 8px;
+}
+
+form.uoj-form-compressed {
+	margin: 12px 0;
+}
+
+form.uoj-form-compressed div.form-group {
+	display: inline-block;
+	width: 24em;
+}
+
+form.uoj-form-compressed div.form-group label.col-sm-2 {
+	display: inline-block;
+	max-width: 100%;
+	width: 6em;
+	padding: 0;
+}
+
+form.uoj-form-compressed div.form-group div.col-sm-3  {
+	display: inline-block;
+	max-width: 100%;
+	width: 16em;
+}
+
+form.uoj-form-compressed div.text-center,
+form.uoj-form-compressed div.text-compressed,
+form.uoj-form-compressed button {
+	display: inline-block;
+}
+
+form.uoj-form-compressed button {
+	position: relative;
+	top: -6px;
+}
+