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- [English](../../plugins/referer-restriction.md)

# 目录

- [**名字**](#名字)
- [**属性**](#属性)
- [**如何启用**](#如何启用)
- [**测试插件**](#测试插件)
- [**禁用插件**](#禁用插件)

## 名字

`referer-restriction` 插件可以根据 Referer 请求头限制访问。

## 属性

| 参数名    | 类型          | 可选项 | 默认值 | 有效值 | 描述                             |
| --------- | ------------- | ------ | ------ | ------ | -------------------------------- |
| whitelist | array[string] | 必须    |         |       | 域名列表。域名开头可以用'*'作为通配符 |
| bypass_missing  | boolean       | 可选    | false   |       | 当 Referer 不存在或格式有误时，是否绕过检查 |

## 如何启用

下面是一个示例，在指定的 route 上开启了 `referer-restriction` 插件:

```shell
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "uri": "/index.html",
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    },
    "plugins": {
        "referer-restriction": {
            "bypass_missing": true,
            "whitelist": [
                "xx.com",
                "*.xx.com"
            ]
        }
    }
}'
```

## 测试插件

带 `Referer: http://xx.com/x` 请求:

```shell
$ curl http://127.0.0.1:9080/index.html -H 'Referer: http://xx.com/x'
HTTP/1.1 200 OK
...
```

带 `Referer: http://yy.com/x` 请求:

```shell
$ curl http://127.0.0.1:9080/index.html -H 'Referer: http://yy.com/x'
HTTP/1.1 403 Forbidden
...
{"message":"Your referer host is not allowed"}
```

不带 `Referer` 请求:

```shell
$ curl http://127.0.0.1:9080/index.html
HTTP/1.1 200 OK
...
```

## 禁用插件

当你想去掉 `referer-restriction` 插件的时候，很简单，在插件的配置中把对应的 json 配置删除即可，无须重启服务，即刻生效：

```shell
$ curl http://127.0.0.1:2379/v2/keys/apisix/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d value='
{
    "uri": "/index.html",
    "plugins": {},
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "39.97.63.215:80": 1
        }
    }
}'
```

现在就已移除 `referer-restriction` 插件，其它插件的开启和移除也类似。