[filepath_by_post_id] にディレクトリーの存在確認を追加

common.php

@@ -16,6 +16,7 @@ define('SESSION_NAME', 'bibis');
 date_default_timezone_set('UTC');
 
 ini_set('zlib.output_compression', 1);
+ini_set('session.use_strict_mode', 1);
 
 if (OPEN_BASEDIR != '') {
 	ini_set('open_basedir', OPEN_BASEDIR);
@@ -108,6 +109,14 @@ function output_csrf_token_hidden() {
 
 // String
 
+function anchor_to_link($s, $thread_id) {
+	return preg_replace(
+		'/>>([1-9]+[0-9]{0,10})/',
+		'<a href="' . sitebase('post/?id=') . $thread_id . '&amp;res=\1">&gt;&gt;\1</a>',
+		$s
+	);
+}
+
 function url_to_link($s) {
 	return preg_replace(
 		'/((http|https):\/\/[\w-]+(\.[\w-]+)+([\w.,@?^=%&amp;:\/~+#-]*[\w@?^=%&amp;\/~+#-])?)/',
@@ -183,9 +192,13 @@ function get_style_css() {
 
 // Limit and permission
 
+function is_logged_in() {
+	return isset($_SESSION['user']);
+}
+
 function can_post() {
 	if (!post_limited()) { return false; }
-	if (!ENABLE_GUEST && !isset($_SESSION['user'])) { return false; }
+	if (!ENABLE_GUEST && !is_logged_in()) { return false; }
 	return true;
 }
 

data-post.php

@@ -116,6 +116,29 @@ function get_post_metadata($file, $deleted = false) {
 	return compact('id', 'is_guest', 'userid', 'detail_url', 'delete_url', 'user_url', 'datetime', 'time', 'thread_id', 'thread_title', 'thread_url', 'is_mine', 'is_future');
 }
 
+function load_res_num($id) {
+	$filepath = filepath_by_post_id($id);
+	if ($filepath === null) { return 1; }
+
+	$file = basename($filepath);
+	$meta = get_post_metadata($file);
+	$thread_id = $meta['thread_id'];
+	$meta = null;
+	if ($thread_id <= '') { return 1; }
+
+	$pattern = "2*Z*.th{$thread_id}.txt";
+	$list = glob(POST_DIR . $pattern);
+	$search = ".id{$id}.";
+	$i = 0;
+        foreach ($list as $i => $filepath) {
+		if (strpos(basename($filepath), $search) > 0) {
+			return $i + 2;
+		}
+        }
+
+	return 1; // fallback
+}
+
 function load_post($filepath) {
 	$files = null;
 
@@ -123,7 +146,6 @@ function load_post($filepath) {
 	$deleted = $detail['deleted'];
 	$title = $detail['title'];
 	$body_raw = $detail['body'];
-	$body = url_to_link(nl2br(htmlspecialchars($body_raw), false));
 	$attachment_id = $detail['attachment_id'];
 	$detail = null;
 
@@ -140,6 +162,16 @@ function load_post($filepath) {
 		$username = $users[$userid]['username'] ?? 'UNKNOWN';
 	}
 
+	$body = url_to_link(
+		nl2br(
+			anchor_to_link(
+				htmlspecialchars($body_raw),
+				$metadata['thread_id'] ?? $metadata['id']
+			),
+			false
+		)
+	);
+
 	$attachments = [];
 	if ($attachment_id != '') {
 		$attachments[] = [
@@ -155,17 +187,8 @@ function load_post($filepath) {
 }
 
 function load_post_by_id($id) {
-  if (!file_exists(POST_DIR)) {
-    die(POST_DIR.': ディレクトリは存在しません。');
-  }
-
-	$files = glob(POST_DIR . '2*Z*.id' . $id . '.*.txt');
-	if (sizeof($files) !== 1) {
-		$files = null;
-		return null;
-	}
-	$filepath = $files[0];
-
+	$filepath = filepath_by_post_id($id);
+	if ($filepath === null) { return null; }
 	return load_post($filepath);
 }
 
@@ -174,6 +197,7 @@ function search_post($options = []) {
     die(POST_DIR.': ディレクトリは存在しません。');
   }
 
+	$includes_future = $options['includes_future'] ?? false;
 	$pagesize = $options['pagesize'] ?? 0;
 	$has_paging = $pagesize > 0;
 	$thread = false;
@@ -185,7 +209,7 @@ function search_post($options = []) {
 	$options = null;
 
 	$pattern = '2*Z*.txt';
-	if ($key === 'userid' && $value != '') {
+	if ($key === 'userid' && $value != '' && $value !== 'tl') {
 		$pattern = "2*Z*.us{$value}.*.txt";
 	}
 	elseif ($key == 'thread' && $value >= 0) {
@@ -199,14 +223,16 @@ function search_post($options = []) {
 
 	$now = date('Y-m-d\\TH:i:s\\Z');
 	$files = glob(POST_DIR . $pattern);
-	$files = array_filter(
-		$files,
-		function ($v) use($now) {
-			$datetime = substr(basename($v), 0, 20);
-			return $datetime <= $now;
-		},
-		ARRAY_FILTER_USE_BOTH
-	);
+	if (!$includes_future) {
+		$files = array_filter(
+			$files,
+			function ($v) use($now) {
+				$datetime = substr(basename($v), 0, 20);
+				return $datetime <= $now;
+			},
+			ARRAY_FILTER_USE_BOTH
+		);
+	}
 	if (!$thread) {
 		$files = array_reverse($files);
 	}
@@ -338,7 +364,7 @@ function save_uploaded_image($key, $attachment_id) {
 	return [];
 }
 
-function delete_post($id) {
+function delete_post($id, $hard = false) {
 	$files = glob(POST_DIR . '2*Z*.id' . $id . '.*.txt');
 	if (sizeof($files) !== 1) { return ['書き込みのファイルが存在しない。']; }
 
@@ -357,7 +383,11 @@ function delete_post($id) {
 		}
 	}
 
-	$result = file_put_contents($filepath, '', LOCK_EX);
+	if ($hard) {
+		$result = unlink($filepath);
+	} else {
+		$result = file_put_contents($filepath, '', LOCK_EX);
+	}
 	if ($result === false) { return ['書き込みの削除に失敗。']; }
 
 	return [];
@@ -502,6 +532,18 @@ function count_post_today() {
 	return $size;
 }
 
+function filepath_by_post_id($id) {
+	if (!file_exists(POST_DIR)) {
+		die(POST_DIR.': ディレクトリは存在しません。');
+	}
+
+	$files = glob(POST_DIR . '2*Z*.id' . $id . '.*.txt');
+	if (sizeof($files) !== 1) {
+		return null;
+	}
+	return $files[0];
+}
+
 function load_post_title_by_id($id) {
   if (!file_exists(POST_DIR)) {
     die(POST_DIR.': ディレクトリは存在しません。');

data.php

@@ -36,6 +36,12 @@ function load_users() {
 	return $users_cache;
 }
 
+function load_users_with_special() {
+	$users = load_users();
+	$users['tl'] = ['id' => 'tl', 'username_raw' => SITENAME, 'username' => SITENAME, 'trip' => ''];
+	return $users;
+}
+
 function update_user($user) {
 	// 注意:ここを変更したら、必ず、ユーザーが消えない事をテストすること。
 
@@ -129,6 +135,7 @@ function add_user($user) {
 // 将来的に「-」より前の行にユーザーごとの設定値などを記録する予定。
 
 function load_profile($id) {
+	if ($id === 'tl') { return ['bio' => '']; }
   if (!file_exists(PROFILE_DIR)) {
     if (!mkdir_p(PROFILE_DIR, 755)) die(PROFILE_DIR.'を作成に失敗。');
   }
@@ -140,7 +147,6 @@ function load_profile($id) {
   if (is_writable(PROFILE_DIR.$id.'.txt')) {
     $profile = file_get_contents(PROFILE_DIR . $id . '.txt') ?? '';
   }
-	if ($profile == '') { return null; }
 
 	$split = preg_split('/^-$/m', $profile, 2);
 	$bio = mbtrim($split[1] ?? '');

public/.well-known/index.php

@@ -0,0 +1,2 @@
+<?php
+require_once __DIR__ . '/../../activitypub/webfinger.php';

public/login/index.php

@@ -25,6 +25,7 @@ function do_post() {
 	$user = auth_user($id, $password);
 	if (!$user) { return on_error(400, ['ID またはパスワードが不一致。']); }
 
+	session_regenerate_id(true);
 	$_SESSION['user'] = $user;
 	http_response_code(301);
 	header('Location: ' . sitebase());

public/post-delete/index.php

@@ -32,7 +32,7 @@ function do_post() {
 	// 削除済み投稿はuseridが空になるからここにくる。
 	if ($post['userid'] !== ($_SESSION['user']['id'] ?? '')) { return on_error(403, ['権限無し。']); }
 
-	$errors = delete_post($id);
+	$errors = delete_post($id, $post['is_future'] ?? false);
 	if ($errors) { return on_error('500', $errors); }
 
 	$_SESSION['messages'] = ['書き込みを削除しました。'];

public/post/index.php

@@ -18,6 +18,32 @@ function do_get() {
 	$post = load_post_by_id($id);
 	if (!$post) { return on_error(400, ['書き込みが存在しない']); }
 
+	if (isset($_GET['res'])) {
+		// TODO:to data-post (or common?)
+		$res = $_GET['res'] ?? '';
+		if ((int)$res <= 0 || (((int)$res) . '') !== $res) { return on_error(400, ['返信番号が不正']); }
+		$redirect_id = null;
+		if ($res === '1') {
+			$redirect_id = $id;
+		}
+		elseif ((int)$res >= 2) {
+			$result = search_post(['key' => 'thread', 'value' => $id]);
+			foreach ($result['post_list'] as $i => $res_post) {
+				if ($i + 2 === (int)$res) {
+					$redirect_id = $res_post['id'];
+					break;
+				}
+			}
+			$result = null;
+			$res_post = null;
+		}
+		if ($redirect_id === null) { return on_error(404, ['返信が存在しない']); }
+		http_response_code(301);
+		header('Location: ' . sitebase('post/?id=' . $redirect_id));
+		return;
+	}
+
+
 	$view['post'] = $post;
 
 	$thread_id = $post['thread_id'];
@@ -32,6 +58,7 @@ function do_get() {
 		$view['total'] = $total;
 		$view['reply_list'] = $result['post_list'];
 	}
+	$view['res_num'] = load_res_num($id);
 	$view['thread_size_over'] = ($total + 1 >= THREAD_SIZE);
 	$result = null;
 	$view['form'] = ['thread_id' => $is_reply ? $thread_id : $id];
@@ -74,6 +101,9 @@ function do_post() {
 		$body = sanitize_post_body($body);
 		$error_body = validate_post_body($body);
 	}
+	if (!$error_body && $thread_id !== NULL && !(ENABLE_IMAGE && $has_file)) {
+		$error_body = validate_post_body_with_anchor($body);
+	}
 
 	$errors = array_merge($error_title, $error_body);
 	if ($errors) { return on_error(400, $errors); }

public/register/index.php

@@ -52,6 +52,7 @@ function do_post() {
 	if ($errors) { return on_error(500, $errors); }
 
 	$username_raw = $username;
+	session_regenerate_id(true);
 	$_SESSION['user'] = compact('id', 'username', 'username_raw');
 	$_SESSION['messages'] = ['登録完了。よろしくね。'];
 	http_response_code(301);

public/style.css

@@ -100,7 +100,6 @@ form ul li
 label
 	{
 	display: block;
-	font-size: 80%;
 	}
 
 button, textarea, input
@@ -113,12 +112,12 @@ button, textarea, input
 
 textarea, input
 	{
-	background: #2b2b2b;
+	background: #12110c;
 	box-sizing: border-box;
-	border-color: #000;
+	border-color: #4b4b4b;
 	color: #ccc;
 	width: 100%;
-	padding: 0 0.25em;
+	padding: 0.25em;
 	}
 
 input[type='checkbox']
@@ -130,15 +129,15 @@ input[type='checkbox']
 
 input[type='file']
 	{
-	background: none;
+	background: #12110c;
 	color: #ccc;
 	font-size: 70%;
-	padding: 0.25em;
+	padding: 0.4em;
 	}
 
 input[type='file']:hover
 	{
-	background: #4d4d4d;
+	background: #2b2b2b;
 	color: #ccc;
 	}
 

public/theme/nitter.css

@@ -0,0 +1,282 @@
+/** theme: nitter-linke **/
+/** bibis-version: 0.9.3 **/
+/*
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.  This file is offered as-is,
+without any warranty.
+*/
+
+*
+	{
+	border: none;
+	font-size: 100%;
+	margin: 0;
+	padding: 0;
+	vertical-align: top;
+	}
+
+body
+	{
+	background: #0F0F0F;
+	color: #F8F8F2;
+	line-height: 1.5;
+	margin: 1em;
+	word-break: break-all;
+	}
+
+h1, h2, h3, h4, h5, h6, dl, ul, ol, p
+	{
+	background: #161616;
+	color: #F8F8F2;
+	}
+
+h2, dl, ul
+	{
+	border-top: thin solid #3E3E35;
+	}
+
+h1, h2, button, label, b
+	{
+	font-weight: 600;
+	}
+
+h1, h2, ul
+	{
+	padding: 0.25em 1em;
+	}
+
+h1
+	{
+	text-align: center;
+	}
+
+ul
+	{
+	list-style: none;
+	}
+
+dd ul
+	{
+	border: thin solid #888889;
+	margin: 0.5em 0 0;
+	}
+
+dl
+	{
+	display: block; /*dillo*/
+	padding: 0.5em 1em 0;
+	}
+
+dt
+	{
+	/*color: rgb(205, 205, 200);*/
+	font-weight: normal;
+	}
+
+dd
+	{
+	clear: both; /* see: .post-time */
+	padding-bottom: 0.5em;
+	}
+
+p
+	{
+	padding: 0 1em 0.5em;
+	}
+
+form ul
+	{
+	padding-top: 0.5em;
+	}
+
+form ul li
+	{
+	padding: 0 0 0.5em;
+	}
+
+label
+	{
+	display: block;
+	}
+
+button, textarea, input
+	{
+	background: #121212;
+	color: #F8F8F2;
+	font-family: inherit;
+	border: thin solid rgb(153, 69, 62);
+	font-size: 100%;
+	line-height: 1.5;
+	}
+
+button:hover, textarea:hover, input:hover
+	{
+	border-color: #FF6360;
+	}
+
+textarea, input
+	{
+	box-sizing: border-box;
+	width: 100%;
+	padding: 0.25em;
+	}
+
+input[type='checkbox']
+	{
+	padding: 0;
+	vertical-align: baseline;
+	width: auto;
+	}
+
+input[type='file']
+	{
+	background: #12110c;
+	color: #ccc;
+	font-size: 70%;
+	padding: 0.4em;
+	}
+
+textarea
+	{
+	height: 6em;
+	}
+
+button
+	{
+	background: none;
+	cursor: pointer;
+	color: #FF6360;
+	padding: 0.25em 1.5em;
+	text-align: center;
+	}
+
+a
+	{
+	background: none;
+	color: #FF6C60;
+	text-decoration: none;
+	}
+
+a:hover
+	{
+	text-decoration: underline;
+	}
+
+/* class */
+
+.spooftime-text
+	{
+	font-style: italic;
+	font-weight: 400;
+	}
+
+:checked ~ .spooftime-text
+	{
+	background: #0ff;
+	color: #000;
+	font-style: normal;
+	font-weight: 600;
+	}
+
+.form-li-submit
+	{
+	text-align: right;
+	}
+
+.post-time
+	{
+	float: right;
+	}
+
+a.post-time
+	{
+	color: #FF6C60;
+	}
+
+.post-time.is-future
+	{
+	background: #0ff;
+	color: #000;
+	}
+
+.pager
+	{
+	height: 3em;
+	line-height: 2;
+	padding: 1em;
+	}
+
+.pager-after a,
+.pager-before a
+	{
+	display: block;
+	}
+
+.pager-after
+	{
+	float: left;
+	}
+
+.pager-after a
+	{
+	padding: 0.5em 1em;
+	}
+
+.pager-after a:hover
+	{
+	}
+
+.pager-before
+	{
+	float: right;
+	}
+
+.pager-before a
+	{
+	background: #222;
+	color: #FF6C60;
+	padding: 0.5em 1.5em 0.5em 2em;
+	}
+
+.pager-before a:hover
+	{
+	background: #282828;
+	color: #FF6C60;
+	}
+
+/* for modern browsers, and netsurf */
+
+@media (min-width: 880.1px)
+	{
+
+	body
+		{
+		left: -125px;
+		margin: 1em auto;
+		position: relative;
+		width: 600px;
+		}
+
+	.menu
+		{
+		background: none;
+		border: none;
+		color: #ccc;
+		margin: 0.75em 0 0 600px;
+		position: fixed;
+		top: 0;
+		}
+
+	.menu li
+		{
+		width: 200px;
+		}
+
+	.menu a
+		{
+		display: block;
+		line-height: 2;
+		}
+
+	}

public/user-list/index.php

@@ -3,7 +3,7 @@ require_once(__DIR__ . '/../../require.php');
 
 if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 	$user_list = load_users();
-	ksort($user_list);
+	ksort($user_list, SORT_STRING | SORT_FLAG_CASE);
 	$view['user_list'] = $user_list;
 
 	output_html($view, ['header.php', 'user-list.php']);

public/user/index.php

@@ -2,10 +2,10 @@
 require_once(__DIR__ . '/../../require.php');
 
 if ($_SERVER['REQUEST_METHOD'] === 'GET') {
-	$id = $_GET['id'] ?? '';
-	if (!strlen($id) || validate_register_id($id)) { return on_error(400, ['不正なリクエスト。']); }
+	$id = '' . ($_GET['id'] ?? '');
+	if ($id !== 'tl' && (!strlen($id) || validate_register_id($id))) { return on_error(400, ['不正なリクエスト。']); }
 
-	$users = load_users();
+	$users = load_users_with_special();
 	if (!isset($users[$id])) { return on_error(400, ['存在しない ID']); }
 
 	$view['user'] = $users[$id];
@@ -24,6 +24,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 		'page' => $page,
 		'pagesize' => POSTS_PER_PAGE,
 		'pager_prefix' => "?id={$id}&page=",
+		'includes_future' => ($id === ($_SESSION['user']['id'] ?? '')),
 	]);
 	$view['post_list'] = $result['post_list'];
 	$view['post_count'] = $result['total'];

validate.php

@@ -64,6 +64,13 @@ function validate_post_body($s) {
 	return [];
 }
 
+function validate_post_body_with_anchor($s) {
+	// アンカーのみ(返信時のデフォルト)は不許可
+	$s = preg_replace('/^>>[0-9]+/', '', $s);
+	if (mbtrim($s) === '') { return ['アンカー「>>○○」1つだけの返信は不可。']; }
+	return [];
+}
+
 function sanitize_post_body($s) {
 	return sanitize_multiline($s);
 }

view/header.php

@@ -1,7 +1,6 @@
 <?php
 // HTML Header, and global navigation
 
-$view['logged_in'] = isset($_SESSION['user']);
 $view['login_user'] = $_SESSION['user'] ?? null;
 $view['messages'] = $_SESSION['messages'] ?? null;
 $_SESSION['messages'] = null;
@@ -12,7 +11,7 @@ $_SESSION['messages'] = null;
 <title><?= htmlspecialchars(SITENAME); ?></title><body>
 <h1><a href="<?= sitebase() ?>"><?= htmlspecialchars(SITENAME); ?></a></h1>
 <ul class="menu">
-<?php if ($view['logged_in']): ?>
+<?php if (is_logged_in()): ?>
 <li><a href="<?= sitebase('user/?id=' . htmlspecialchars(urlencode($view['login_user']['id']))) ?>"><?= '@' . htmlspecialchars($view['login_user']['id']) ?></a>
 <li><a href="<?= sitebase() ?>">タイムライン・Timeline</a>
 <li><a href="<?= sitebase('thread/') ?>">スレッド一覧・Threads</a>

view/post-common.php

@@ -55,12 +55,15 @@ function view_post($post, $options = []) {
 	$html_attachment_items = join(PHP_EOL, $attachment_items);
 ?>
 <dl<?= ($res_num > 0 ? ' id="N' . $res_num . '"' : '') ?>>
+<?php if ($post['is_future'] ?? false): ?>
+<dt><strong>【予約投稿】</strong></dt>
+<?php endif; ?>
 <?php if (!$is_single && $title != ''): ?>
 <dt>件名:<b><?= $title ?></b></dt>
 <?php endif; ?>
 <dt><?= $res_num > 0 ? "{$res_num} " : '' ?><?= $html_user ?> <?= $html_time ?></dt>
-<?php if ($link_to_thread && $thread_id != ''): ?>
-<dd>RE: <a href="<?= $thread_url ?>"><?= $thread_title ?></a></dd>
+<?php if ($link_to_thread && $thread_id != '' && $is_single): ?>
+<dd>RE:<a href="<?= $thread_url ?>"><?= $thread_title ?></a></dd>
 <?php endif; ?>
 <dd><?= $body ?>
 <?php if (ENABLE_ATTACHMENT && $html_attachment_items != ''): ?>

view/post-form.php

@@ -1,12 +1,20 @@
 <?php
 // Post form
+$value = '';
+if (($view['res_num'] ?? 0) >= 2) {
+	$value = '>>' . $view['res_num'] . PHP_EOL;
+}
 ?>
 <?php if (ENABLE_POST): ?>
 <?php if (isset($view['form']['thread_id']) && $view['form']['thread_id'] != ''): ?>
 <h2 id="REPLY_FORM">返信・Reply</h2>
 <?php endif; ?>
 <?php if (!can_post()): ?>
-<?php if (!post_limited()): ?>
+<?php if (!ENABLE_GUEST && !is_logged_in()): ?>
+<ul>
+<li>書き込みするにはログインしてください。
+</ul>
+<?php elseif (!post_limited()): ?>
 <ul>
 <li>書き込み制限中。
 </ul>
@@ -29,11 +37,11 @@ $view['form'] = $view['form'] ?? [];
 ?>
 <form method="POST" action="<?= sitebase('post/') ?>" enctype="multipart/form-data">
 <ul>
-<li><?= $view['logged_in'] ? 'ログイン中:<b>' . htmlspecialchars($view['login_user']['username']) . '</b>' : '<b>' . htmlspecialchars(GUESTNAME) . '</b>' ?>
-<?php if (!(isset($view['form']['thread_id']) && $view['form']['thread_id'] != '')): ?>
+<li><?= is_logged_in() ? 'ログイン中:<b>' . htmlspecialchars($view['login_user']['username']) . '</b>' : '<b>' . htmlspecialchars(GUESTNAME) . '</b>' ?>
+<?php if (!(isset($view['form']['thread_id']) && $view['form']['thread_id'] > '')): ?>
 <li><label for="TITLE">件名 (省略可)・Title (Optional)</label> <input type="text" id="TITLE" name="title">
 <?php endif; ?>
-<li><label for="BODY">本文 (500文字以内)・Text (500)</label> <textarea id="BODY" name="body" cols="40" rows="5"></textarea>
+<li><label for="BODY">本文 (500文字以内)・Text (500)</label> <textarea id="BODY" name="body" cols="40" rows="5"><?= htmlspecialchars($value) ?></textarea>
 <?php if (ENABLE_SPOOF_TIME): ?>
 <li><label><input type="checkbox" name="spooftime" value="1"> <b class="spooftime-text">ランダム予約投稿(3H～27H遅らせる)</b></label></li>
 <?php endif; ?>

view/post.php

@@ -3,7 +3,9 @@
 require __DIR__ . '/post-common.php';
 
 $post = $view['post'] ?? [];
-$title = $post['title'] ?? '';
+$title = ($post['title']) ?? '';
+$thread_title = ($post['thread_title']) ?? '';
+$thread_url = ($post['thread_url']) ?? '';
 $reply_list = $view['reply_list'] ?? [];
 $total = sizeof($reply_list) + 1;
 $total_view = $total > 1 ? " ($total)" : '';
@@ -12,9 +14,13 @@ $total_view = $total > 1 ? " ($total)" : '';
 <h2>件名:<?= htmlspecialchars("$title{$total_view}") ?></h2>
 <?php elseif ($post['thread_id'] == ''): ?>
 <h2><?= htmlspecialchars('無題#' . mb_substr($post['id'], 0, 7) . $total_view) ?></h2>
+<?php elseif ($thread_title > ''): ?>
+<h2>RE:<a href="<?= $thread_url ?>"><?= htmlspecialchars($thread_title) ?></a></h2>
+<?php elseif ($post['thread_id'] <= ''): ?>
+<h2>RE:<a href="<?= $thread_url ?>"><?= htmlspecialchars('無題#' . mb_substr($post['thread_id'], 0, 7)) ?></a></h2>
 <?php endif; ?>
 <?php
-view_post($post, ['res_num' => $post['thread_id'] != '' ? 0 : 1, 'is_single' => true, 'link_to_thread' => true]);
+view_post($post, ['res_num' => $post['thread_id'] != '' ? 0 : 1, 'is_single' => true, 'link_to_thread' => true, 'res_num' => $view['res_num'] ?? 1]);
 ?>
 <?php
 foreach ($reply_list as $i => $reply) {