Files
SimpleNav/index.php
T
laoyang ae75058de1 未安装时自动跳转安装向导(修「打开首页不跳转」)
现象:全新部署后打开域名,看到的是一个空导航站(没有任何提示),
必须自己猜 /install.php 这个网址才能安装。

原因:index.php 一进来就 db() 建库并渲染前台,全站没有任何
「还没装」的引导逻辑;install.php 只能靠手输网址触达。

改动:
- functions.php 新增 app_installed():全站唯一的「已安装」判断源
  (有管理员账号 = 已安装),内部 try/catch 兜住建库失败
- index.php 开头:未安装且 install.php 存在 → 302 到安装页
  · 只在 install.php 真存在时跳,用户装完删掉后自动失效,不会 404
- install.php 复用 app_installed(),删掉自己那套 is_file(DB_PATH) 推断,
  避免「首页说没装、install 说装了」的口径分裂

测试(都在 _tooling/):
- _sn_install_redirect_e2e.py 19 项:未安装跳转 / 已安装不跳 /
  install.php 删了不跳 / 已装拒重装,四态全覆盖
- _sn_install_redirect_falsify.py 6 变体全精确命中(含「无条件跳转→死循环」)
- _sn_install_e2e.py 41 项回归全绿(顺手修 6 条因新逻辑过时的断言)
2026-11-03 22:07:22 +08:00

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<?php
/**
* 简航 SimpleNav —— 前台首页
* 顶部:品牌 + 搜索引擎切换 + 搜索框(带联想下拉)
* 中部:常用 / 工具等网格板块
* 下部:合集(标签页折叠 或 全部平铺,后台可切换)
*/
declare(strict_types=1);
require_once __DIR__ . '/functions.php';
send_no_cache();
/**
* 未安装就先去装:库里还没有任何一个管理员账号时,前台没有意义
* (打开只会看到一个空导航,既没有提示也不知道去哪)。
*
* ⚠️ 只在 install.php 真的存在时才跳。用户装完删掉 install.php 后,
* 这个分支自动失效,不会跳到 404。
* ⚠️ 必须放在 db() 之前判断的等价位置:app_installed() 内部会调 db(),
* 但那边有 try/catch 兜住建库失败的情况,不会把异常抛到前台。
*/
if (!app_installed() && is_file(__DIR__ . '/install.php')) {
header('Location: ' . url('install.php'));
exit;
}
$pdo = db();
// 前台数据
$gridGroups = $pdo->query("SELECT * FROM groups WHERE is_visible=1 AND display='grid' ORDER BY sort_order, id")->fetchAll();
$tabGroups = $pdo->query("SELECT * FROM groups WHERE is_visible=1 AND display='tabs' ORDER BY sort_order, id")->fetchAll();
$engines = $pdo->query("SELECT * FROM engines WHERE is_active=1 ORDER BY sort_order, id")->fetchAll();
// 合集区的显示方式(后台「设置 → 合集显示方式」):
// tabs = 标签页折叠(默认)—— 一次只平铺当前这一个合集
// flat = 全部平铺 —— 每个合集各占一块,一眼看全、不用点
$collLayout = setting('collections_layout', 'tabs') === 'flat' ? 'flat' : 'tabs';
/** 站点链接与顶部搜索框的打开方式(后台「设置 → 打开方式」)
* 返回 `_blank`(新标签页,默认,等同改造前的旧行为)或 `_self`(当前页面)。
* ⚠️ 搜索框与站点格必须共用这一个来源,不要在任何一处写死 target。 */
function open_target(): string
{
return setting('open_blank', '1') === '1' ? '_blank' : '_self';
}
$openTarget = open_target();
$openMode = $openTarget === '_blank' ? 'blank' : 'self';
// 联想词的选中按键(后台「设置 → 联想词按键」):
// both = ↓/↑ 与 , . 都认(默认) / arrows = 只认 ↓/↑ / punct = 只认 , 和 .
// 白名单回退:任何非法值都回到 both(默认值,与 db.php 一致),别让手改库/被篡改的表单把交互搞坏。
$suggestKeys = setting('suggest_keys', 'both');
if (!in_array($suggestKeys, ['arrows', 'punct', 'both'], true)) { $suggestKeys = 'both'; }
// 默认引擎
$defSlug = setting('default_engine', 'bing');
$default = null;
foreach ($engines as $en) {
if ($en['slug'] === $defSlug) { $default = $en; break; }
}
if ($default === null) { $default = $engines[0] ?? null; }
$primary = setting('primary_color', '#2F6BF7');
// 副标题(后台「设置 → 副标题」)。
// ⚠️ 允许为空:用户清空后就**不显示**副标题,不要回退成默认文案 ——
// 这正是 bug 的现场(原先空串被当成「未设置」,删了照样显示)。
// 空串原样取出(默认值取 ''),渲染处再按需判断是否输出。
$subtitle = setting('subtitle', '');
function sites_of(int $gid): array
{
$st = db()->prepare("SELECT * FROM sites WHERE group_id=? AND is_visible=1 ORDER BY sort_order, id");
$st->execute([$gid]);
return $st->fetchAll();
}
function site_label(array $s): string
{
return $s['short_name'] !== '' ? $s['short_name'] : ($s['name'] !== '' ? $s['name'] : domain_of($s['url']));
}
/** 渲染一个网站格(网格板块与合集共用) */
function site_tile(array $s): void
{
$label = site_label($s);
$src = icon_src($s['icon']);
// 打开方式与顶部搜索框同源(见 open_target()):新标签页 or 当前页面
$tgt = open_target();
?>
<li class="site">
<a href="<?= e($s['url']) ?>" target="<?= e($tgt) ?>"<?= $tgt === '_blank' ? ' rel="noopener"' : '' ?> title="<?= e($s['name'] ?: $label) ?>">
<?php if ($src): ?>
<img class="icon" src="<?= e($src) ?>" alt="" loading="lazy">
<?php else: ?>
<span class="ico-letter" style="background:<?= e(letter_color($label)) ?>"><?= e(mb_substr($label, 0, 1)) ?></span>
<?php endif; ?>
<span class="name"><?= e($label) ?></span>
</a>
</li>
<?php
}
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title><?= e(site_name()) ?><?= $subtitle !== '' ? ' · ' . e($subtitle) : '' ?></title>
<meta name="description" content="<?= e(site_name()) ?> —— 个人网站导航">
<meta name="theme-color" content="<?= e($primary) ?>">
<!-- 站点图标(favicon / apple-touch / PWA manifest):有自定义就用自定义,
没有就完全退回内置资源。三处页面共用 site_icon_head(),避免半生效。 -->
<?= site_icon_head() ?>
<link rel="stylesheet" href="<?= e(asset('assets/css/style.css')) ?>">
<?php if ($primary !== '#2F6BF7'): ?>
<style>:root { --primary: <?= e($primary) ?>; }</style>
<?php endif; ?>
</head>
<body data-open="<?= e($openMode) ?>">
<div class="container">
<!-- 顶部品牌区 -->
<header class="hero" data-site-icon="<?= e(site_icon_mode()) ?>">
<img class="logo" src="<?= e(site_icon_url('logo', 512) ?: asset('assets/img/logo.svg')) ?>" alt="<?= e(site_name()) ?>">
<h1><?= e(site_name()) ?></h1>
<?php if ($subtitle !== ''): ?>
<p><?= e($subtitle) ?></p>
<?php endif; ?>
</header>
<!-- 顶部搜索 -->
<div id="search" class="s-search">
<div class="search-type" id="engine-tabs">
<?php foreach ($engines as $en): ?>
<label class="s-engine<?= $default && $en['slug'] === $default['slug'] ? ' active' : '' ?>"
data-search="<?= e($en['search_url']) ?>"
data-param="<?= e($en['param']) ?>"
data-slug="<?= e($en['slug']) ?>"
data-placeholder="<?= e($en['name']) ?>搜索"
style="--ec:<?= e($en['color']) ?>">
<span><?= e($en['name']) ?></span>
</label>
<?php endforeach; ?>
<?php if (!$engines): ?>
<label class="s-engine active" data-search="https://cn.bing.com/search" data-param="q" data-slug="" data-placeholder="搜索"><span>搜索</span></label>
<?php endif; ?>
</div>
<form id="search-form" action="<?= e($default['search_url'] ?? 'https://cn.bing.com/search') ?>" method="get" target="<?= e($openTarget) ?>"<?= $openTarget === '_blank' ? ' rel="noopener"' : '' ?>
data-slug="<?= e($default['slug'] ?? '') ?>" data-keys="<?= e($suggestKeys) ?>">
<input type="text" id="search-text" name="<?= e($default['param'] ?? 'q') ?>"
placeholder="<?= e(($default['name'] ?? '搜索') . '搜索') ?>" autocomplete="off">
<button class="submit" type="submit" aria-label="搜索">
<svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" aria-hidden="true">
<circle cx="11" cy="11" r="7"></circle>
<path d="M20 20l-3.6-3.6"></path>
</svg>
</button>
<ul id="word"></ul>
</form>
</div>
<!-- 网格板块:常用 / 工具 ... -->
<?php foreach ($gridGroups as $g): $items = sites_of((int)$g['id']); if (!$items) continue; ?>
<ul class="mylist">
<li class="title"><?= e($g['name']) ?></li>
<?php foreach ($items as $s) { site_tile($s); } ?>
</ul>
<?php endforeach; ?>
<!-- 合集:标签页折叠 或 全部平铺(后台「设置 → 合集显示方式」切换) -->
<?php
// 先收一遍「有内容的合集」,空合集不占位(标签页模式下也不会多出一个空标签)
$collGroups = [];
foreach ($tabGroups as $g) {
$items = sites_of((int)$g['id']);
if ($items) { $collGroups[] = ['g' => $g, 'items' => $items]; }
}
?>
<?php if ($collGroups): ?>
<div class="collections<?= $collLayout === 'flat' ? ' flat' : '' ?>" data-layout="<?= e($collLayout) ?>">
<div class="collections-title">合集</div>
<?php if ($collLayout === 'flat'): ?>
<?php foreach ($collGroups as $c): ?>
<ul class="mylist">
<li class="title"><?= e($c['g']['name']) ?></li>
<?php foreach ($c['items'] as $s) { site_tile($s); } ?>
</ul>
<?php endforeach; ?>
<?php else: ?>
<div class="tabs" id="coll-tabs" role="tablist">
<?php foreach ($collGroups as $i => $c): ?>
<button type="button" class="tab<?= $i === 0 ? ' active' : '' ?>" role="tab"
aria-selected="<?= $i === 0 ? 'true' : 'false' ?>"
data-target="coll-<?= (int)$c['g']['id'] ?>"><?= e($c['g']['name']) ?></button>
<?php endforeach; ?>
</div>
<div class="tab-panels">
<?php foreach ($collGroups as $i => $c): ?>
<ul class="mylist tab-panel<?= $i === 0 ? ' active' : '' ?>" id="coll-<?= (int)$c['g']['id'] ?>" role="tabpanel">
<?php foreach ($c['items'] as $s) { site_tile($s); } ?>
</ul>
<?php endforeach; ?>
</div>
<?php endif; ?>
</div>
<?php endif; ?>
<footer class="foot">
<a href="<?= e(url('admin/')) ?>">管理</a>
<span>·</span>
<span><?= e(site_name()) ?></span>
</footer>
</div>
<script>window.SIMPLENAV = { suggest: "<?= e(url('suggest.php')) ?>", suggestKeys: "<?= e($suggestKeys) ?>" };</script>
<script src="<?= e(asset('assets/js/app.js')) ?>"></script>
</body>
</html>