2026-09-30 00:49:53 +08:00
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<?php
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/**
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* 登录态与权限。
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*
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* 一个重要设计:**人(Person)≠ 账号(Account)**。
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* 六岁的孩子应该出现在家庭名册、照片、活动参与人里,但不必有密码。
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* 所以 person 可以先于 account 存在,将来再「开通账号」。
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*/
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declare(strict_types=1);
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namespace App;
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final class Auth
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{
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public static function check(): bool
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{
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return !empty($_SESSION['account_id']);
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}
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public static function id(): ?int
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{
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return isset($_SESSION['account_id']) ? (int)$_SESSION['account_id'] : null;
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}
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public static function personId(): ?int
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{
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return isset($_SESSION['person_id']) ? (int)$_SESSION['person_id'] : null;
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}
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public static function familyId(): ?int
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{
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return isset($_SESSION['family_id']) ? (int)$_SESSION['family_id'] : null;
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}
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public static function name(): string
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{
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return $_SESSION['name'] ?? '';
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}
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2026-10-06 17:33:48 +08:00
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// ---------------- DAV 专用口令(v24 第 7 条后半 → 第 22 批升成通用) ----------------
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2026-10-03 08:18:05 +08:00
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/**
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2026-10-06 17:33:48 +08:00
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* 这个人有没有配过 DAV 口令。
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2026-10-03 08:18:05 +08:00
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*
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2026-10-06 17:33:48 +08:00
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* ⚠️ 为什么不用登录口令:DAV 客户端(iOS 日历/通讯录、DAVx⁵、Thunderbird)
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2026-10-03 08:18:05 +08:00
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* 会把这串凭据**长期存在设备上**并反复自动发送。让它是登录口令,
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2026-10-06 17:33:48 +08:00
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* 等于把主密码复制到每一台设备、且改密码就要每台重配;
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* 更糟的是手机上那个"账号"往往还有别的用途 —— 泄露面比日历本大得多。
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* 这正是用户第 22 批的原话:「避免在第三方客户端进行同步时自己的密码泄露」。
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*
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* ⚠️ **一把口令管两种同步**(用户 2026-10-06 第 22 批确认):
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* 日历(CalDAV)与通讯录(CardDAV)共用同一串 —— 手机上填一次就都通了。
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* 所以下面这几个方法一律叫 dav* 而不是 caldav*(表也从 caldav_credentials
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* 改名成了 dav_credentials,见 Schema 版本 23)。
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2026-10-03 08:18:05 +08:00
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*/
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2026-10-06 17:33:48 +08:00
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public static function hasDav(int $personId): bool
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2026-10-03 08:18:05 +08:00
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{
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2026-10-06 17:33:48 +08:00
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$st = Database::get()->prepare('SELECT COUNT(*) FROM dav_credentials WHERE person_id = ?');
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2026-10-03 08:18:05 +08:00
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$st->execute([$personId]);
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return (int)$st->fetchColumn() > 0;
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}
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2026-10-06 17:33:48 +08:00
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/** 这个人最后一次用 DAV 同步是什么时候(NULL = 从没用过;UI 上显示出来) */
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public static function davLastUsed(int $personId): ?string
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{
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$st = Database::get()->prepare(
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'SELECT last_used_at FROM dav_credentials WHERE person_id = ? LIMIT 1'
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);
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$st->execute([$personId]);
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$v = $st->fetchColumn();
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return ($v === false || $v === null || $v === '') ? null : (string)$v;
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}
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2026-10-03 08:18:05 +08:00
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/**
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2026-10-06 17:33:48 +08:00
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* 生成(或重置)DAV 口令,**返回明文**(只在这一刻能看到,库里只有哈希)。
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*
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* ⚠️ 重置 = 换一串新的,**设备上的旧口令立刻失效** —— 这是"口令外泄了怎么办"
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* 的唯一出路,所以 UI 上按钮就写"重置"、并且要有一句确认。
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2026-10-03 08:18:05 +08:00
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*/
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2026-10-06 17:33:48 +08:00
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public static function davIssue(int $personId): string
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2026-10-03 08:18:05 +08:00
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{
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// 去掉容易读错的字符(0/O、1/l/I),因为用户要手打进手机
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$alphabet = 'abcdefghjkmnpqrstuvwxyz23456789';
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$plain = '';
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for ($i = 0; $i < 24; $i++) {
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$plain .= $alphabet[random_int(0, strlen($alphabet) - 1)];
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}
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Database::get()->prepare(
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2026-10-06 17:33:48 +08:00
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'INSERT INTO dav_credentials (person_id, token_hash) VALUES (?,?)
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2026-10-03 08:18:05 +08:00
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ON DUPLICATE KEY UPDATE token_hash = VALUES(token_hash), created_at = NOW()'
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)->execute([$personId, hash('sha256', $plain)]);
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return $plain;
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}
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2026-10-06 17:33:48 +08:00
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public static function davRevoke(int $personId): void
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2026-10-03 08:18:05 +08:00
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{
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2026-10-06 17:33:48 +08:00
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Database::get()->prepare('DELETE FROM dav_credentials WHERE person_id = ?')
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2026-10-03 08:18:05 +08:00
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->execute([$personId]);
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}
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/**
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* 用 Basic 凭据换一个「登录者」。成功返回 [personId, familyId, name],失败 null。
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*
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* 用户名可以是手机号,也可以是姓名 —— 手机上打姓名比打 11 位数字省事得多。
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* 两者都走同一套节流(失败计数保存在会话里,与登录共用)。
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2026-10-06 17:33:48 +08:00
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*
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* ⚠️ 这套鉴权**同时服务 CalDAV 与 CardDAV**(dav.php 与 carddav.php 都调它)
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* —— 这正是"一把口令管两种同步"的落点:任何一处改了规则,两处一起生效,
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* 不会出现"日历能连、通讯录连不上"的裂缝。
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2026-10-03 08:18:05 +08:00
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*/
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2026-10-06 17:33:48 +08:00
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public static function davAuth(?string $user, ?string $pass): ?array
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2026-10-03 08:18:05 +08:00
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{
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$user = trim((string)$user);
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$pass = (string)$pass;
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if ($user === '' || $pass === '') {
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return null;
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}
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$fail = $_SESSION['cd_fail'] ?? ['n' => 0, 't' => 0];
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if ($fail['n'] >= 8 && (time() - $fail['t']) < 60) {
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usleep(500000);
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return null;
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}
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$db = Database::get();
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// 先按手机号(哈希)找,再按姓名找 —— 都限定 status=active
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$row = null;
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$st = $db->prepare(
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'SELECT a.id AS account_id, p.id AS person_id, p.family_id, p.name, cd.token_hash
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FROM accounts a
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JOIN persons p ON p.id = a.person_id
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2026-10-06 17:33:48 +08:00
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LEFT JOIN dav_credentials cd ON cd.person_id = p.id
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2026-10-03 08:18:05 +08:00
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WHERE a.status = "active" AND p.phone_hash = ? LIMIT 1'
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);
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$st->execute([Crypto::hash($user)]);
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$row = $st->fetch();
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if (!$row) {
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$st = $db->prepare(
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'SELECT a.id AS account_id, p.id AS person_id, p.family_id, p.name, cd.token_hash
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FROM accounts a
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JOIN persons p ON p.id = a.person_id
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2026-10-06 17:33:48 +08:00
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LEFT JOIN dav_credentials cd ON cd.person_id = p.id
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2026-10-03 08:18:05 +08:00
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WHERE a.status = "active" AND p.name = ?
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ORDER BY p.id LIMIT 1'
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);
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$st->execute([$user]);
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$row = $st->fetch();
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}
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$ok = $row && !empty($row['token_hash'])
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&& hash_equals((string)$row['token_hash'], hash('sha256', $pass));
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if (!$ok) {
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$_SESSION['cd_fail'] = ['n' => $fail['n'] + 1, 't' => time()];
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return null;
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}
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unset($_SESSION['cd_fail']);
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2026-10-06 17:33:48 +08:00
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$db->prepare('UPDATE dav_credentials SET last_used_at = NOW() WHERE person_id = ?')
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2026-10-03 08:18:05 +08:00
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->execute([(int)$row['person_id']]);
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return [
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'person_id' => (int)$row['person_id'],
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'family_id' => (int)$row['family_id'],
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'name' => (string)$row['name'],
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];
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}
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2026-09-30 00:49:53 +08:00
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public static function isAdmin(): bool
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{
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return ($_SESSION['role'] ?? '') === 'admin';
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}
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2026-09-30 08:13:07 +08:00
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/** 访客:只能看被授权的信息,不能创建/编辑任何东西 */
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public static function isGuest(): bool
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{
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return ($_SESSION['role'] ?? '') === 'guest';
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}
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/** 能正常使用系统的人(管理员或家庭成员)—— 判断「能否写」用这个 */
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public static function canWrite(): bool
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{
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$r = $_SESSION['role'] ?? '';
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return $r === 'admin' || $r === 'member';
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}
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public static function role(): string
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{
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return (string)($_SESSION['role'] ?? '');
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}
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public static function roleWord(): string
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{
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return ['admin' => '管理员', 'member' => '家庭成员', 'guest' => '访客'][self::role()] ?? '成员';
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}
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/**
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* 首页标题 —— 「以我为中心」最直接的一处落点。
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2026-09-30 13:24:26 +08:00
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* 登录后看到的不是「家书」,而是「<我的名字>的家书」。
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2026-09-30 08:13:07 +08:00
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*/
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public static function homeTitle(): string
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{
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$name = self::name();
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return $name === '' ? '家书' : $name . '的家书';
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}
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2026-09-30 00:49:53 +08:00
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/** 未登录跳登录页 */
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public static function requireLogin(): void
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{
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if (!self::check()) {
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redirect('auth/login');
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}
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}
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2026-09-30 08:13:07 +08:00
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/** 需要「能写」的权限(访客会被挡下) */
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public static function requireWrite(): void
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{
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self::requireLogin();
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if (!self::canWrite()) {
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http_response_code(403);
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\App\View::render('error', [
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'title' => '访客只读',
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'message' => '你的身份是访客,只能查看,不能新增或修改内容。',
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], 'home');
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exit;
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}
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}
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2026-09-30 00:49:53 +08:00
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public static function requireAdmin(): void
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{
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self::requireLogin();
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if (!self::isAdmin()) {
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http_response_code(403);
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\App\View::render('error', [
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'title' => '没有权限',
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'message' => '这一页只有家庭管理员可以操作。',
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], 'home');
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exit;
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}
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}
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/**
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* 手机号 + 密码登录。
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* 返回 true 表示成功并已写入会话。
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*/
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public static function login(string $phone, string $password): bool
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{
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// 简单节流:5 次失败后 60 秒内不再尝试。
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// 防爆破的关键不在判定多严,而在于「尝试次数有成本」。
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$fail = $_SESSION['login_fail'] ?? ['n' => 0, 't' => 0];
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if ($fail['n'] >= 5 && (time() - $fail['t']) < 60) {
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usleep(500000);
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return false;
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}
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$hash = Crypto::hash($phone);
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$stmt = Database::get()->prepare(
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'SELECT a.id AS account_id, a.password_hash, a.role, a.status,
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p.id AS person_id, p.family_id, p.name, p.avatar
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FROM accounts a
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JOIN persons p ON p.id = a.person_id
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WHERE p.phone_hash = ? LIMIT 1'
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);
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$stmt->execute([$hash]);
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$row = $stmt->fetch();
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if (!$row || $row['status'] !== 'active'
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|| !password_verify($password, (string)$row['password_hash'])) {
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$_SESSION['login_fail'] = ['n' => $fail['n'] + 1, 't' => time()];
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usleep(300000);
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return false;
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}
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unset($_SESSION['login_fail']);
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session_regenerate_id(true);
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$_SESSION['account_id'] = (int)$row['account_id'];
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$_SESSION['person_id'] = (int)$row['person_id'];
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$_SESSION['family_id'] = (int)$row['family_id'];
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$_SESSION['name'] = $row['name'];
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$_SESSION['role'] = $row['role'];
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$_SESSION['avatar'] = $row['avatar'];
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Database::get()->prepare('UPDATE accounts SET last_login_at = NOW() WHERE id = ?')
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->execute([$row['account_id']]);
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2026-10-02 09:28:07 +08:00
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// 进门就把「这个人的默认日历本」补上(幂等)。
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//
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// ⚠️ 为什么必须在这里兜一道,而不是只靠 Schema::ensure():
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// 全新安装时 install.php 是**先** Schema::ensure()、**后**建人 ——
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// ensure() 里那段 seedDefaultsForFamily() 遍历的是"已开通账号的人",
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// 那时一个人都还没有,于是**一本日历都不建**;紧接着 schema_version
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// 被写成最新版,升级路径以后也不会再跑 → 这个人永远没有观影/旅行两本。
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// 症状很隐蔽:日程页能用,只是"我的日历本"空着,观影也不上日历。
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// 放在登录处最稳:不管人是装的、别人加的、还是老库升级来的,进来就有。
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try {
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|
\App\Calendar::seedDefaults((int)$row['family_id'], (int)$row['person_id']);
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|
} catch (\Throwable $ex) {
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|
|
// 日历本建不出来不该把人挡在门外;下次登录会再试一次
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|
|
error_log('[familybook] 补建默认日历本失败(已跳过):' . $ex->getMessage()
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|
|
. ' @ ' . $ex->getFile() . ':' . $ex->getLine());
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|
|
}
|
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|
|
2026-09-30 00:49:53 +08:00
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|
|
return true;
|
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|
|
}
|
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|
|
public static function logout(): void
|
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|
|
{
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|
|
$_SESSION = [];
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|
|
if (ini_get('session.use_cookies')) {
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|
|
$p = session_get_cookie_params();
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|
|
setcookie(session_name(), '', time() - 42000,
|
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|
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|
|
$p['path'], $p['domain'], $p['secure'], $p['httponly']);
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|
|
}
|
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|
|
session_destroy();
|
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|
|
}
|
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|
|
/** 头像改动后刷新会话里的缓存 */
|
|
|
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|
|
public static function refreshAvatar(string $avatar): void
|
|
|
|
|
|
{
|
|
|
|
|
|
$_SESSION['avatar'] = $avatar;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
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