103 lines
3.8 KiB
PHP
Executable File
103 lines
3.8 KiB
PHP
Executable File
<?php
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require_once __DIR__ . '/config/db.php';
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require_once __DIR__ . '/includes/functions.php';
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if (isset($_SESSION['user_id'])) {
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redirect('index.php');
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}
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$error = '';
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$success = '';
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if ($_SERVER['REQUEST_METHOD'] === 'POST') {
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$username = trim($_POST['username'] ?? '');
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$password = $_POST['password'] ?? '';
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$confirm = $_POST['confirm'] ?? '';
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$invite = trim($_POST['invite'] ?? '');
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if ($username === '' || $password === '' || $confirm === '' || $invite === '') {
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$error = '请填写所有字段';
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} elseif (strlen($username) < 3 || strlen($username) > 20) {
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$error = '用户名长度3-20个字符';
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} elseif (strlen($password) < 6) {
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$error = '密码长度至少6位';
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} elseif ($password !== $confirm) {
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$error = '两次密码输入不一致';
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} else {
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// 检查用户名是否已存在
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$stmt = $pdo->prepare('SELECT id FROM users WHERE username = ?');
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$stmt->execute([$username]);
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if ($stmt->fetch()) {
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$error = '用户名已存在';
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} else {
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$pdo->beginTransaction();
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try {
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// 验证邀请码（次数校验：未超限 或 不限次数）
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$stmt = $pdo->prepare("SELECT id, max_uses, used_count FROM invite_codes WHERE code = ? AND (used_count < max_uses OR max_uses = 0) FOR UPDATE");
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$stmt->execute([$invite]);
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$ic = $stmt->fetch();
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if (!$ic) {
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$error = '邀请码无效或已超出使用次数';
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$pdo->rollBack();
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} else {
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$hash = password_hash($password, PASSWORD_DEFAULT);
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$stmt = $pdo->prepare('INSERT INTO users (username, password) VALUES (?, ?)');
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$stmt->execute([$username, $hash]);
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// 增加邀请码使用次数
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$stmt = $pdo->prepare('UPDATE invite_codes SET used_count = used_count + 1 WHERE id = ?');
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$stmt->execute([$ic['id']]);
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$pdo->commit();
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redirect('login.php');
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}
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} catch (Exception $e) {
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$pdo->rollBack();
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$error = '注册失败，请重试';
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}
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}
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}
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}
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?><!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>注册 - 兑换码管理系统</title>
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<link rel="stylesheet" href="assets/css/style.css">
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</head>
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<body class="auth-page">
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<div class="auth-card">
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<h1>用户注册</h1>
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<?php if ($error): ?>
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<div class="alert alert-danger"><?= h($error) ?></div>
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<?php endif; ?>
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<?php if ($success): ?>
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<div class="alert alert-success"><?= h($success) ?></div>
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<div class="auth-footer"><a href="login.php">前往登录</a></div>
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<?php else: ?>
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<form method="post">
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<div class="form-group">
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<label>用户名</label>
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<input type="text" name="username" class="form-control" required minlength="3" maxlength="20">
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</div>
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<div class="form-group">
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<label>密码</label>
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<input type="password" name="password" class="form-control" required minlength="6">
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</div>
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<div class="form-group">
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<label>确认密码</label>
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<input type="password" name="confirm" class="form-control" required>
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</div>
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<div class="form-group">
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<label>邀请码</label>
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<input type="text" name="invite" class="form-control" required>
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</div>
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<button type="submit" class="btn btn-primary">注 册</button>
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</form>
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<div class="auth-footer">已有账号？<a href="login.php">立即登录</a></div>
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<?php endif; ?>
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</div>
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</body>
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</html>
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