docs: introduction to Flag-Filter usage

CONFIG.md

@@ -8,9 +8,10 @@ token:                                # Authentication Token, both the admin pag
 domains: []                           # The domain names used by the platform
 external_ip:                          # The external IP of the platform, you need to make sure that the target you want to test can access the platform through this IP
 admin_path_prefix: "/revsuit"          # The http path prefix for the admin page, the page will be located at: /admin_path_prefix/admin
-database: revsuit.db                  # Database connection information, support using Sqlite3, MySQL, Postgres
-# database: "mysql://root:password@tcp(127.0.0.1:3306)/revsuit?charset=utf8mb4&parseTime=True&loc=Local"
+# Database connection information, support using MySQL, Postgres, Sqlite3
+database: "mysql://root:password@tcp(127.0.0.1:3306)/revsuit?charset=utf8mb4&parseTime=True&loc=Local"
 # database: "postgres://host=127.0.0.1 user=root password=password dbname=revsuit port=5432 sslmode=disable TimeZone=Asia/Shanghai"
+#database: revsuit.db # The use of sqlite databases on some systems may cause `SQLITE BUSY` problems in concurrent scenarios, so it is not recommended for use in a formal environment
 
 log_level: info                       # Output log levels, divided into: debug, info, warning, error, fatal
 check_upgrade: true                   # Whether to automatically check for updates
@@ -43,4 +44,4 @@ notice:
   lark: https://open.feishu.cn/open-apis/bot/v2/hook/{token}               # Webhook of Lark Bot 
   weixin: https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key={key}       # Webhook of Weixin Bot
   slack: https://hooks.slack.com/services/{id}/{token}                     # Webhook of Slack Bot
-```
+```

CONFIG.zh-CN.md

@@ -7,9 +7,10 @@ token:                                # 鉴权Token，管理页面和客户端
 domains: []                           # 反连平台绑定的域名
 external_ip:                          # 反连平台的外部IP，需要确保你想测试的目标能通过该 IP 访问到平台
 admin_path_prefix: "/revsuit"          # 管理页面的 http path 前缀，管理页面将位于：/admin_path_prefix/admin
-database: revsuit.db                  # 数据库连接信息 支持Sqlite3、MySQL、Postgres
-# database: "mysql://root:password@tcp(127.0.0.1:3306)/revsuit?charset=utf8mb4&parseTime=True&loc=Local"
+# 数据库连接信息 支持MySQL、Postgres、SQLite3
+database: "mysql://root:password@tcp(127.0.0.1:3306)/revsuit?charset=utf8mb4&parseTime=True&loc=Local"
 # database: "postgres://host=127.0.0.1 user=root password=password dbname=revsuit port=5432 sslmode=disable TimeZone=Asia/Shanghai"
+#database: revsuit.db # 在部分系统上使用 sqlite 数据库时，在并发场景下可能会出现 `SQLITE BUSY` 的问题，因此不推荐在正式环境中使用该类型数据库
 
 log_level: info                       # 输出日志的级别，分为：debug、info、warning、error、fatal
 check_upgrade: false                  # 是否自动检查更新
@@ -43,4 +44,4 @@ notice:
   weixin: https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key={key}       # 企业微信机器人webhook地址
   slack: https://hooks.slack.com/services/{id}/{token}                     # slack机器人webhook地址
 
-```
+```

README.md

@@ -158,6 +158,11 @@ example.
 As shown above, RevSuit supports multiple clients, and each client **in the connected state** receives a push of `flag`,
 so distributed scanning can be supported.
 
+If you don't want every client to receive all `flag` pushes, you can use the `Flag-Filter` request header when creating an sse connection to set the format(regular expressions) of the `flag` you want that client to receive:
+
+![img.png](./images/flag-filter.gif)
+
+
 #### Temporary storage queue
 
 RevSuit will store `flag` temporarily in the queue when there is no client connection and send it when the client

README.zh-CN.md

@@ -140,6 +140,11 @@ RevSuit
 
 如上一节的图片里所展示的，RevSuit 支持多个客户端，每个在**连接状态**的客户端都会接收到 `flag` 的推送，因此分布式扫描也是支持的。
 
+如果你不希望每个客户端都收到全部的 `flag` 推送，你可以在创建 sse 连接时，使用 `Flag-Filter` 请求头设置希望该客户端接受的 `flag` 的格式（支持正则表达式），例如:
+
+![img.png](./images/flag-filter.gif)
+
+
 #### 暂存队列
 
 当没有客户端连接的时候，RevSuit 会把 `flag` 暂时存储到队列里，当有客户端连接的时候再进行推送。因此你不必担心因为客户端与 RevSuit 断开连接就错过漏洞。（这对发现延时触发的漏洞尤为有帮助）
@@ -225,4 +230,4 @@ payload，最后被扫描器发出的请求是：`['https://www.testvuln.com?url
 
 ## 开源许可协议
 
-@Apache License 2.0
+@Apache License 2.0