371 lines
18 KiB
PHP
371 lines
18 KiB
PHP
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<?php
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/**
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* FeedLite · 安装向导
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* ------------------------------------------------------------------
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* 什么时候会用到：`data/` 下还没有数据库文件（全新部署）时，任何页面都会把
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* 访问者送到这里。向导只做四件事：
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* ① 体检：PHP 版本、必需扩展、目录可写性；
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* ② 收信息：站点标题/描述、管理员口令、官方邮箱、站点根地址；
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* ③ 写配置：生成 config.php（在 config.example.php 基础上逐项替换，
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* 已有的 OSS / SMTP 段落原样保留，不覆盖你手工改过的内容）；
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* ④ 建库建表 + 把口令以 bcrypt 哈希写进数据库 ——
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* **明文口令不落盘**，config.php 里始终保持出厂占位值。
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*
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* 装完之后：删除本文件与否都可以（已安装态下它会礼貌地拒绝重复安装），
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* 但建议删掉，少一个入口少一分风险。
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* ------------------------------------------------------------------
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* 安装向导必须能在「尚未安装」的状态下运行，所以这里自己引导，
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* 并显式声明跳过 bootstrap 的「未安装就跳 install」逻辑，否则会自己跳自己。
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*/
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define('FB_SKIP_INSTALL_REDIRECT', 1);
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require __DIR__ . '/lib/bootstrap.php';
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$root = FB_ROOT;
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$cfgFile = $root . '/config.php';
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/* ==================================================================
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* 已安装 → 拒绝重复安装
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* ================================================================== */
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$already = fb_installed();
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/* ==================================================================
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* 环境体检
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* ================================================================== */
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function fb_install_checks() {
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$need = ['pdo_sqlite' => 'SQLite 数据库（PDO）', 'openssl' => 'SMTP / OSS 加密通信'];
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$opt = ['curl' => '访问 OSS（可选，没有会退回 PHP 流式请求）', 'mbstring' => '中文字数统计（可选）'];
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$dirs = [
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FB_ROOT => '站点根目录（要写入 config.php）',
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FB_ROOT . '/data' => '数据库目录 data/',
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FB_ROOT . '/uploads' => '本机附件目录 uploads/（本机存储模式用）',
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];
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$rows = [];
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$ok = true;
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$verOk = version_compare(PHP_VERSION, '7.4.0', '>=');
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$rows[] = ['PHP 版本', PHP_VERSION, $verOk, '需要 7.4 及以上（推荐 8.0~8.3）', $verOk ? '' : '当前版本过低，请切换站点的 PHP 版本'];
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if (!$verOk) { $ok = false; }
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foreach ($need as $ext => $why) {
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$has = extension_loaded($ext);
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if (!$has) { $ok = false; }
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$rows[] = ['PHP 扩展：' . $ext, $has ? '已启用' : '未启用', $has, $why, $has ? '' : ('请在 PHP 设置里开启 ' . $ext . ' 扩展')];
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}
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foreach ($opt as $ext => $why) {
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$has = extension_loaded($ext);
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$rows[] = ['PHP 扩展：' . $ext, $has ? '已启用' : '未启用（不影响安装）', true, $why, ''];
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}
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foreach ($dirs as $d => $why) {
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if (!is_dir($d)) { @mkdir($d, 0755, true); }
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$w = is_dir($d) && is_writable($d);
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if (!$w) { $ok = false; }
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$shown = ($d === FB_ROOT) ? '（站点根）' : str_replace(FB_ROOT, '', $d);
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$rows[] = ['目录可写 ' . $shown, $w ? '可写' : '不可写', $w, $why, $w ? '' : ('请给 Web 用户写权限，例如 chown www:www ' . $d)];
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}
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// config.php 若已存在（例如从模板复制过），必须可写才能就地更新
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if (is_file(FB_ROOT . '/config.php')) {
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$w = is_writable(FB_ROOT . '/config.php');
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if (!$w) { $ok = false; }
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$rows[] = ['config.php 可写', $w ? '可写' : '不可写', $w, '需要就地更新配置', $w ? '' : '请给该文件写权限，例如 chown www:www config.php'];
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} else {
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$rows[] = ['config.php', '尚不存在（将自动生成）', true, '由安装向导创建', ''];
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}
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$ex = is_file(FB_ROOT . '/config.example.php');
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$rows[] = ['配置模板 config.example.php', $ex ? '存在' : '缺失', $ex, '生成 config.php 的底稿', $ex ? '' : '仓库文件不完整，请重新获取源码'];
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if (!$ex) { $ok = false; }
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return [$ok, $rows];
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}
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/* ==================================================================
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* 生成 config.php（在模板文本上逐项替换，保留注释与其它段落）
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* ================================================================== */
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function fb_install_write_config(array $v) {
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$example = FB_ROOT . '/config.example.php';
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$src = (string)@file_get_contents($example);
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if ($src === '') { return '读不到 config.example.php。'; }
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/** 把顶层键（含引号形式）整项替换成新值；找不到就返回原串由调用方兜底 */
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$setTop = function ($key, $valueExpr, $txt) {
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$pat = "/^([ \t]*'" . preg_quote($key, '/') . "'[ \t]*=>[ \t]*)(.*?)(,[ \t]*)(\r?\n)/m";
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$rep = '$1' . $valueExpr . '$3$4';
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return preg_replace($pat, $rep, $txt, 1);
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};
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$phpStr = function ($s) { return "'" . str_replace(["\\", "'"], ["\\\\", "\\'"], (string)$s) . "'"; };
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$dbPath = str_replace('\\', '/', FB_ROOT . '/data/feedback.db');
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$src = $setTop('db_path', "'" . $dbPath . "'", $src);
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$src = $setTop('site_name', $phpStr($v['site_name']), $src);
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$src = $setTop('site_desc', $phpStr($v['site_desc']), $src);
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$src = $setTop('admin_email', $phpStr($v['admin_email']), $src);
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$src = $setTop('base_url', $phpStr($v['base_url']), $src);
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// 口令不写进文件：此处只把残留的旧明文重置为占位值（正常都是占位值，等价于不动）
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$src = $setTop('admin_password', "'CHANGE_ME_admin'", $src);
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$src = $setTop('api_token', $phpStr($v['api_token']), $src);
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$src = $setTop('ip_salt', $phpStr($v['ip_salt']), $src);
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// 兜底校验：生成的文本必须是可解析的 PHP。
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// 注意必须带 TOKEN_PARSE —— 不加这一位 token_get_all 只做词法切分、不报语法错，等于没校验。
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$syntaxOk = true;
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if (defined('TOKEN_PARSE') && function_exists('token_get_all')) {
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try { @token_get_all($src, TOKEN_PARSE); }
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catch (Throwable $e) { $syntaxOk = false; }
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}
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if (!$syntaxOk) { return '生成的配置内容语法不正确，已放弃写入（请把 config.php 恢复为模板后再试）。'; }
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$stamp = date('Y-m-d H:i:s');
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$header = "<?php\n"
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. "/**\n"
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. " * FeedLite · 轻反馈 · 配置文件\n"
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. " * ------------------------------------------------------------------\n"
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. " * 本文件由安装向导于 " . $stamp . " 生成，已按你填写的内容更新；\n"
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. " * 段落注释与 OSS / SMTP 等配置保持模板原样，可继续手工编辑。\n"
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. " * 注意：管理员口令【不在这里】——它以 bcrypt 哈希存在数据库 settings 表，\n"
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. " * 下行的 admin_password 只是工厂占位值（已被程序明确禁用，无法登录）。\n"
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. " */\n\n";
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$src = $header . preg_replace('/^<\?php\s*/', '', $src, 1);
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$ok = @file_put_contents(FB_ROOT . '/config.php', $src);
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if ($ok === false) { return '写入 config.php 失败（目录或文件不可写）。'; }
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@chmod(FB_ROOT . '/config.php', 0640);
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return '';
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}
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/** 随机串（口令 / 令牌 / 盐） */
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function fb_install_rand($n = 32) {
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try { return bin2hex(random_bytes($n)); } catch (Throwable $e) { return md5(uniqid('', true) . mt_rand()); }
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}
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/* ==================================================================
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* 提交处理
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* ================================================================== */
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$err = '';
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$done = false;
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if (isset($_POST['do_install'])) {
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list($envOk, ) = fb_install_checks();
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$post = function ($k, $d = '') { return isset($_POST[$k]) ? trim((string)$_POST[$k]) : $d; };
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$siteName = $post('site_name');
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$siteDesc = $post('site_desc');
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$admEmail = $post('admin_email');
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$baseUrl = rtrim($post('base_url'), '/');
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$pw = (string)(isset($_POST['admin_password']) ? $_POST['admin_password'] : '');
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$pw2 = (string)(isset($_POST['admin_password2']) ? $_POST['admin_password2'] : '');
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$setPw = !empty($_POST['set_password']);
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if (!$envOk) {
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$err = '环境体检未通过，请先按提示处理好上面标红的问题。';
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} elseif (!fb_csrf_ok(isset($_POST['csrf']) ? (string)$_POST['csrf'] : '')) {
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$err = '会话已过期，请重新提交。';
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} elseif ($siteName === '' || fb_len($siteName) > 80) {
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$err = '站点标题请填写 1~80 个字符。';
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} elseif ($admEmail !== '' && !filter_var($admEmail, FILTER_VALIDATE_EMAIL)) {
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$err = '官方邮箱格式不正确（也可以留空）。';
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} elseif ($baseUrl !== '' && !preg_match('~^https?://~i', $baseUrl)) {
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$err = '站点根地址需要以 http:// 或 https:// 开头（留空则自动探测）。';
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} elseif ($setPw && fb_len($pw) < 8) {
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$err = '管理员口令至少 8 个字符。';
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} elseif ($setPw && $pw !== $pw2) {
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$err = '两次输入的口令不一致。';
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} else {
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// ① 先建库建表 —— 后面写设置才有地方写
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$pdo = fb_db();
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// ② 写 config.php（口令不入文件）
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$cfgErr = fb_install_write_config([
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'site_name' => $siteName,
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'site_desc' => ($siteDesc !== '' ? $siteDesc : (string)fb_cfg('site_desc', '')),
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'admin_email' => $admEmail,
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'base_url' => $baseUrl,
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'api_token' => fb_install_rand(16),
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'ip_salt' => fb_install_rand(16),
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]);
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if ($cfgErr === '') {
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fb_cfg_flush(); // 让后续取值看到刚落盘的新 config.php
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} else {
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// config.php 写不进去不算致命：settings 表里的值同样生效，先把系统跑起来并如实告知
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$err = '提示：' . $cfgErr . '（站内设置已写入数据库，系统可用；但建议修好后手工补齐 config.php）';
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}
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// ③ 站点信息入库（优先生效，且不依赖 config.php 是否可写）
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fb_set_setting('site_name', $siteName);
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if ($siteDesc !== '') { fb_set_setting('site_desc', $siteDesc); }
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fb_set_setting('installed_at', time());
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// ④ 口令：只写 bcrypt 哈希，绝不落盘明文
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$pwSet = false;
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if ($setPw && fb_len($pw) >= 8 && $pw === $pw2) {
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$pwSet = fb_admin_set_password($pw);
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}
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$done = true;
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$GLOBALS['__fb_install_pw_set'] = $pwSet;
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}
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}
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?>
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta name="robots" content="noindex,nofollow">
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<title>安装 · 轻反馈 FeedLite</title>
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<link rel="icon" type="image/svg+xml" href="assets/favicon.svg">
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<link rel="icon" type="image/x-icon" href="assets/favicon.ico">
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<link rel="apple-touch-icon" sizes="180x180" href="assets/apple-touch-icon.png">
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<link rel="stylesheet" href="assets/style.css?v=7">
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</head>
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<body>
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<header class="topbar">
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<div class="wrap">
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<span class="brand-mini">
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<span class="logo-mark" role="img" aria-label="轻反馈图标"></span>
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<span class="brand-text">轻反馈 FeedLite</span>
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</span>
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<div class="spacer"></div>
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<span class="navlink hide-sm">安装向导</span>
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</div>
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</header>
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<main class="wrap">
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<?php if ($already && !$done): ?>
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<section class="narrow">
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<h1>已经装好了</h1>
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<p class="muted">检测到数据库已存在，无需重复安装。</p>
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<p>
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<a class="btn primary" href="index.php">进入问题列表</a>
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<a class="btn" href="admin.php">管理后台</a>
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</p>
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<div class="card-form" style="margin-top:18px">
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<p class="muted small">如果你确实想重装（例如换了数据库位置），请先手动移走
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<code>data/feedback.db</code> 再刷新本页。本向导不会替你删除任何数据。</p>
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</div>
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</section>
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<?php elseif ($done): ?>
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<?php $pwSet = !empty($GLOBALS['__fb_install_pw_set']); ?>
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<section class="narrow">
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<h1>安装完成 🎉</h1>
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<p class="muted">已生成 <code>config.php</code>、建好数据库表。下面是接下来要做的两件事：</p>
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<div class="card-form" style="margin:14px 0">
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<div style="display:flex;flex-direction:column;gap:8px">
|
|||
|
|
<span><b>① 删除安装文件</b> —— 请把这个 <code>install.php</code> 从服务器上删掉（已安装态下它会拒绝重装，但删掉更干净）。</span>
|
|||
|
|
<span><b>② 设置口令</b> ——
|
|||
|
|
<?php if ($pwSet): ?>
|
|||
|
|
管理员口令已设成你刚才填的那个，并以 <b>bcrypt 哈希</b>存进数据库；<code>config.php</code> 里没有任何明文口令。
|
|||
|
|
<?php else: ?>
|
|||
|
|
你这次没设口令。<b>在设好之前后台无法登录</b>：请进入 <a href="admin.php">管理后台</a>，在「站点设置 → 登录口令」里设定（或重新运行本向导）。
|
|||
|
|
<?php endif; ?>
|
|||
|
|
</span>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<?php if ($err !== ''): ?><?php fb_flash_box($err, 'error'); ?><?php endif; ?>
|
|||
|
|
|
|||
|
|
<p>
|
|||
|
|
<a class="btn primary" href="index.php">进入问题列表</a>
|
|||
|
|
<a class="btn" href="admin.php">管理后台</a>
|
|||
|
|
</p>
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
<?php else: ?>
|
|||
|
|
<?php list($envOk, $rows) = fb_install_checks(); ?>
|
|||
|
|
|
|||
|
|
<div class="page-head">
|
|||
|
|
<div>
|
|||
|
|
<h1>安装向导</h1>
|
|||
|
|
<p class="muted">数据库目录 <code>data/</code> 下还没有数据，先完成这几步设置，装完即可使用。</p>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<?php if (!$envOk): ?>
|
|||
|
|
<?php fb_flash_box('环境体检未通过：请先处理下方标红项，处理好后刷新本页。', 'error'); ?>
|
|||
|
|
<?php endif; ?>
|
|||
|
|
|
|||
|
|
<h2 style="margin:22px 0 10px">一、环境体检</h2>
|
|||
|
|
<div class="card-form" style="margin:0 0 18px">
|
|||
|
|
<div style="display:flex;flex-direction:column;gap:6px">
|
|||
|
|
<?php foreach ($rows as $r): ?>
|
|||
|
|
<span>
|
|||
|
|
<?php echo $r[2] ? '✅' : '❌'; ?>
|
|||
|
|
<b><?php echo e($r[0]); ?></b>：<?php echo e($r[1]); ?>
|
|||
|
|
<?php if (!empty($r[3])): ?><i class="hint">（<?php echo e($r[3]); ?>）</i><?php endif; ?>
|
|||
|
|
<?php if (!empty($r[4])): ?><br><span class="muted small" style="margin-left:1.4em">↳ <?php echo e($r[4]); ?></span><?php endif; ?>
|
|||
|
|
</span>
|
|||
|
|
<?php endforeach; ?>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<h2 style="margin:22px 0 10px">二、填写站点信息</h2>
|
|||
|
|
<?php fb_flash_box($err, 'error'); ?>
|
|||
|
|
<form method="post" action="install.php" class="card-form">
|
|||
|
|
<input type="hidden" name="csrf" value="<?php echo e(fb_csrf_token()); ?>">
|
|||
|
|
|
|||
|
|
<label class="field"><span>站点标题 <b class="req">*</b></span>
|
|||
|
|
<input type="text" name="site_name" maxlength="80" required
|
|||
|
|
value="<?php echo e(isset($_POST['site_name']) ? (string)$_POST['site_name'] : (string)fb_cfg('site_name', '轻反馈')); ?>"
|
|||
|
|
placeholder="轻反馈">
|
|||
|
|
<i class="hint">显示在浏览器标签、页面顶栏与页脚。用来说明「本系统为哪个软件提供反馈服务」，如「XX 软件 · 问题反馈」。</i></label>
|
|||
|
|
|
|||
|
|
<label class="field"><span>站点描述</span>
|
|||
|
|
<textarea name="site_desc" rows="3" maxlength="300"
|
|||
|
|
placeholder="欢迎在这里反馈使用问题、提出功能建议。"><?php echo e(isset($_POST['site_desc']) ? (string)$_POST['site_desc'] : (string)fb_cfg('site_desc', '')); ?></textarea>
|
|||
|
|
<i class="hint">显示在首页标题下方，一句话说明这里可以反馈什么。</i></label>
|
|||
|
|
|
|||
|
|
<div class="grid2">
|
|||
|
|
<label class="field"><span>官方邮箱</span>
|
|||
|
|
<input type="email" name="admin_email" value="<?php echo e(isset($_POST['admin_email']) ? (string)$_POST['admin_email'] : (string)fb_cfg('admin_email', '')); ?>"
|
|||
|
|
placeholder="support@example.com">
|
|||
|
|
<i class="hint">对外展示用的联系邮箱，可留空。</i></label>
|
|||
|
|
<label class="field"><span>站点根地址</span>
|
|||
|
|
<input type="text" name="base_url" value="<?php echo e(isset($_POST['base_url']) ? (string)$_POST['base_url'] : (string)fb_cfg('base_url', '')); ?>"
|
|||
|
|
placeholder="https://你的域名/feedback">
|
|||
|
|
<i class="hint">用于邮件正文里的链接。留空则按访问域名自动探测。</i></label>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<h2 style="margin:22px 0 10px">三、设置管理员口令</h2>
|
|||
|
|
<p class="muted small" style="margin:-4px 0 10px">
|
|||
|
|
口令用来登录管理后台、以及以「官方」身份回复。<b>它以 bcrypt 单向哈希写入数据库，明文不会保存在 config.php 或任何文件里。</b>
|
|||
|
|
留空则暂不设定，装完后可在后台补设（补设之前后台不可登录）。
|
|||
|
|
</p>
|
|||
|
|
<div class="grid2">
|
|||
|
|
<label class="field"><span>管理员口令（至少 8 位）</span>
|
|||
|
|
<input type="password" name="admin_password" autocomplete="new-password"></label>
|
|||
|
|
<label class="field"><span>再输入一次</span>
|
|||
|
|
<input type="password" name="admin_password2" autocomplete="new-password"></label>
|
|||
|
|
</div>
|
|||
|
|
<label class="check"><input type="checkbox" name="set_password" value="1" checked> 现在设定口令（推荐）</label>
|
|||
|
|
|
|||
|
|
<div class="form-actions">
|
|||
|
|
<button class="btn primary" type="submit" name="do_install" value="1"<?php echo $envOk ? '' : ' disabled'; ?>>开始安装</button>
|
|||
|
|
</div>
|
|||
|
|
<?php if (!$envOk): ?>
|
|||
|
|
<p class="muted small">环境体检未通过前无法提交，请先处理标红项。</p>
|
|||
|
|
<?php endif; ?>
|
|||
|
|
</form>
|
|||
|
|
|
|||
|
|
<div class="card-form" style="margin-top:18px">
|
|||
|
|
<p class="muted small">安装后再删掉本文件即可。<br>
|
|||
|
|
邮件通知（SMTP）与附件上传（阿里云 OSS）都在安装完成后、在后台「站点设置」里配置，这里不需要填。</p>
|
|||
|
|
</div>
|
|||
|
|
<?php endif; ?>
|
|||
|
|
|
|||
|
|
</main>
|
|||
|
|
<footer class="foot">
|
|||
|
|
<div class="wrap">
|
|||
|
|
<p class="muted foot-line"><span>轻反馈 FeedLite</span><span class="dot">·</span><a href="<?php echo e(fb_credit_url_default()); ?>" target="_blank" rel="noopener">FeedLite</a></p>
|
|||
|
|
</div>
|
|||
|
|
</footer>
|
|||
|
|
</body>
|
|||
|
|
</html>
|