fix: harden tenant auth and quality gates

api/src/auth/session.service.ts

@@ -21,6 +21,9 @@ export type SessionValidationResult =
   | { status: 'expired'; code: 'SESSION_INVALID' | 'SESSION_ABSOLUTE_TIMEOUT' | 'SESSION_LOCK_TIMEOUT' };
 
 const SESSION_PREFIX = 'cmpp:auth:session:';
+const CAPTCHA_PREFIX = 'cmpp:auth:captcha:';
+const ANONYMOUS_FAILURE_PREFIX = 'cmpp:auth:failure:';
+const ANONYMOUS_LOCK_PREFIX = 'cmpp:auth:lock:';
 export const SESSION_COOKIE_NAME = '__Host-cmpp_session';
 export const DEVELOPMENT_SESSION_COOKIE_NAME = 'cmpp_session';
 export const ADMIN_SESSION_COOKIE_NAME = '__Host-cmpp_admin_session';
@@ -123,6 +126,61 @@ export class SessionService implements OnModuleDestroy {
     return this.client.del(this.key(token));
   }
 
+  async storeCaptcha(captchaId: string, answer: string, ttlSeconds: number) {
+    try {
+      await this.client.set(`${CAPTCHA_PREFIX}${captchaId}`, answer, 'EX', ttlSeconds);
+    } catch {
+      throw new ServiceUnavailableException('验证码服务暂不可用');
+    }
+  }
+
+  async consumeCaptcha(captchaId: string) {
+    try {
+      return await this.client.getdel(`${CAPTCHA_PREFIX}${captchaId}`);
+    } catch {
+      throw new ServiceUnavailableException('验证码服务暂不可用');
+    }
+  }
+
+  async isAnonymousLoginLocked(login: string) {
+    try {
+      return Boolean(await this.client.exists(`${ANONYMOUS_LOCK_PREFIX}${this.loginDigest(login)}`));
+    } catch {
+      throw new ServiceUnavailableException('登录保护服务暂不可用');
+    }
+  }
+
+  async recordAnonymousLoginFailure(login: string) {
+    const digest = this.loginDigest(login);
+    const failureKey = `${ANONYMOUS_FAILURE_PREFIX}${digest}`;
+    const lockKey = `${ANONYMOUS_LOCK_PREFIX}${digest}`;
+    try {
+      const count = Number(await this.client.eval(
+        `local count = redis.call('INCR', KEYS[1])
+         if count == 1 then redis.call('EXPIRE', KEYS[1], ARGV[1]) end
+         if count >= tonumber(ARGV[2]) then redis.call('SET', KEYS[2], '1', 'EX', ARGV[1]) end
+         return count`,
+        2,
+        failureKey,
+        lockKey,
+        24 * 60 * 60,
+        5,
+      ));
+      return count;
+    } catch {
+      throw new ServiceUnavailableException('登录保护服务暂不可用');
+    }
+  }
+
+  async clearAnonymousLoginFailures(login: string) {
+    const digest = this.loginDigest(login);
+    try {
+      await this.client.del(`${ANONYMOUS_FAILURE_PREFIX}${digest}`, `${ANONYMOUS_LOCK_PREFIX}${digest}`);
+    } catch {
+      throw new ServiceUnavailableException('登录保护服务暂不可用');
+    }
+  }
+
   isRecentlyAuthenticated(record: AuthSessionRecord) {
     return Date.now() - record.lastAuthenticatedAt < this.recentAuthenticationMs;
   }
@@ -195,6 +253,10 @@ export class SessionService implements OnModuleDestroy {
     return `${SESSION_PREFIX}${createHash('sha256').update(token).digest('hex')}`;
   }
 
+  private loginDigest(login: string) {
+    return createHash('sha256').update(login.trim().toLocaleLowerCase('en-US')).digest('hex');
+  }
+
   private get client() {
     if (!this.redis) {
       this.redis = new IORedis(process.env.REDIS_URL ?? 'redis://127.0.0.1:6379', {