2020-10-17 17:45:26 +08:00
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# http://www.apache.org/licenses/LICENSE-2.0
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-->
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[English](../plugin-interceptors.md)
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## Plugin interceptors
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有些插件为实现它的功能会注册额外的接口。
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由于这些接口不是通过 admin API 添加的，所以没办法像管理 Route 那样管理它们。为了能够保护这些接口不被利用，我们引入了 interceptors 的概念。
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下面是通过 interceptors 来保护由 prometheus 插件引入的 `/apisix/prometheus/metrics` 接口，限定只能由 `10.0.0.0/24` 网段的用户访问：
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```shell
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2020-11-28 19:05:14 +08:00
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$ curl http://127.0.0.1:9080/apisix/admin/plugin_metadata/prometheus -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -i -X PUT -d '
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2020-10-17 17:45:26 +08:00
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{
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"interceptors": [
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{
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"name": "ip-restriction",
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"conf": {
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"whitelist": ["10.0.0.0/24"]
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}
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}
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]
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}
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```
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我们能看到配置 interceptors 就像配置 plugin 一样：name 是 interceptor 的名称，而 conf 是它的配置。
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当前我们只支持一部分插件作为 interceptor 运行。
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支持的 interceptor：
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* [ip-restriction](./plugins/ip-restriction.md)
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