域名管理

2026-06-02 00:32:05 +08:00
parent f2ec634888
commit 4aec0b4fce
20 changed files with 1879 additions and 7 deletions
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\common\service;
+
+use think\Cache;
+use think\Exception;
+
+/**
+ * 域名检测频率限制
+ * 每分钟最多 2 次，超限后冷却 120 秒
+ */
+class DomainDetectRateLimitService
+{
+    /** 统计窗口（秒） */
+    private const WINDOW_SECONDS = 60;
+
+    /** 窗口内最大检测次数 */
+    private const MAX_ATTEMPTS = 2;
+
+    /** 超限后冷却时间（秒） */
+    private const COOLDOWN_SECONDS = 120;
+
+    /**
+     * 校验是否允许检测，不允许时抛出异常
+     *
+     * @param int $adminId  管理员 ID
+     * @param int $domainId 域名记录 ID
+     * @throws Exception
+     */
+    public function assertCanDetect(int $adminId, int $domainId): void
+    {
+        $now = time();
+        $baseKey = 'domain_detect:' . $adminId . ':' . $domainId;
+        $cooldownKey = $baseKey . ':cooldown';
+        $attemptsKey = $baseKey . ':attempts';
+
+        $cooldownUntil = (int)Cache::get($cooldownKey, 0);
+        if ($cooldownUntil > $now) {
+            $wait = $cooldownUntil - $now;
+            throw new Exception(sprintf('检测过于频繁，请 %d 秒后再试', $wait));
+        }
+
+        $timestamps = Cache::get($attemptsKey);
+        if (!is_array($timestamps)) {
+            $timestamps = [];
+        }
+
+        $timestamps = array_values(array_filter($timestamps, static function ($ts) use ($now): bool {
+            return is_int($ts) && ($now - $ts) < self::WINDOW_SECONDS;
+        }));
+
+        if (count($timestamps) >= self::MAX_ATTEMPTS) {
+            Cache::set($cooldownKey, $now + self::COOLDOWN_SECONDS, self::COOLDOWN_SECONDS);
+            Cache::set($attemptsKey, $timestamps, self::WINDOW_SECONDS + self::COOLDOWN_SECONDS);
+            throw new Exception(sprintf(
+                '一分钟最多检测 %d 次，请 %d 秒后再试',
+                self::MAX_ATTEMPTS,
+                self::COOLDOWN_SECONDS
+            ));
+        }
+
+        $timestamps[] = $now;
+        Cache::set($attemptsKey, $timestamps, self::WINDOW_SECONDS + self::COOLDOWN_SECONDS);
+    }
+}