apisix/docs/en/latest/plugins/referer-restriction.md
2021-02-25 16:32:21 +08:00

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# Summary
- [**Name**](#name)
- [**Attributes**](#attributes)
- [**How To Enable**](#how-to-enable)
- [**Test Plugin**](#test-plugin)
- [**Disable Plugin**](#disable-plugin)
## Name
The `referer-restriction` can restrict access to a Service or a Route by
whitelisting request header Referrers.
## Attributes
| Name | Type | Requirement | Default | Valid | Description |
| --------- | ------------- | ----------- | ------- | ----- | ---------------------------------------- |
| whitelist | array[string] | required | | | List of hostname to whitelist. The hostname can be started with `*` as a wildcard |
| bypass_missing | boolean | optional | false | | Whether to bypass the check when the Referer header is missing or malformed |
## How To Enable
Creates a route or service object, and enable plugin `referer-restriction`.
```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"
]
}
}
}'
```
## Test Plugin
Request with `Referer: http://xx.com/x`:
```shell
$ curl http://127.0.0.1:9080/index.html -H 'Referer: http://xx.com/x'
HTTP/1.1 200 OK
...
```
Request with `Referer: http://yy.com/x`:
```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"}
```
Request without `Referer`:
```shell
$ curl http://127.0.0.1:9080/index.html
HTTP/1.1 200 OK
...
```
## Disable Plugin
When you want to disable the `referer-restriction` plugin, it is very simple,
you can delete the corresponding json configuration in the plugin configuration,
no need to restart the service, it will take effect immediately:
```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
}
}
}'
```
The `referer-restriction` plugin has been disabled now. It works for other plugins.