mirror of https://github.com/fatedier/frp
fatedier
5 years ago
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commit
c2da396230
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### Manage Plugin
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frp manage plugin is aim to extend frp's ability without modifing self code.
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It runs as a process and listen on a port to provide RPC interface. Before frps doing some operations, frps will send RPC requests to manage plugin and do operations by it's response.
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### RPC request
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Support HTTP first.
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When manage plugin accept the operation request, it can give three different responses.
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* Reject operation and return the reason.
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* Allow operation and keep original content.
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* Allow operation and return modified content.
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### Interface
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HTTP path can be configured for each manage plugin in frps. Assume here is `/handler`.
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Request
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```
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POST /handler
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{
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"version": "0.1.0",
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"op": "Login",
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"content": {
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... // Operation info
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}
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}
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Request Header
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X-Frp-Reqid: for tracing
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```
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Response
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Error if not return 200 http code.
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Reject opeartion
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```
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{
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"reject": true,
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"reject_reason": "invalid user"
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}
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```
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Allow operation and keep original content
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```
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{
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"reject": false,
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"unchange": true
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}
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```
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Allow opeartion and modify content
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```
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{
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"unchange": "false",
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"content": {
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... // Replaced content
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}
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}
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```
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### Operation
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Now it supports `Login` and `NewProxy`.
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#### Login
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Client login operation
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```
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{
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"content": {
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"version": <string>,
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"hostname": <string>,
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"os": <string>,
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"arch": <string>,
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"user": <string>,
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"timestamp": <int64>,
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"privilege_key": <string>,
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"run_id": <string>,
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"pool_count": <int>,
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"metas": map<string>string
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}
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}
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```
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#### NewProxy
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Create new proxy
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```
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{
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"content": {
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"user": {
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"user": <string>,
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"metas": map<string>string
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},
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"proxy_name": <string>,
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"proxy_type": <string>,
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"use_encryption": <bool>,
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"use_compression": <bool>,
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"group": <string>,
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"group_key": <string>,
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// tcp and udp only
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"remote_port": <int>,
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// http and https only
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"custom_domains": []<string>,
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"subdomain": <string>,
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"locations": <string>,
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"http_user": <string>,
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"http_pwd": <string>,
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"host_header_rewrite": <string>,
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"headers": map<string>string,
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"metas": map<string>string
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}
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}
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```
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### manage plugin configure
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```ini
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[common]
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bind_port = 7000
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[plugin.user-manager]
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addr = 127.0.0.1:9000
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path = /handler
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ops = Login
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[plugin.port-manager]
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addr = 127.0.0.1:9001
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path = /handler
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ops = NewProxy
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```
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addr: plugin listen on.
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path: http request url path.
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ops: opeartions plugin needs handle.
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### meta data
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Meta data will be sent to manage plugin in each RCP request.
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Meta data start with `meta_`. It can be configured in `common` and each proxy.
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```
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# frpc.ini
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[common]
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server_addr = 127.0.0.1
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server_port = 7000
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user = fake
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meta_token = fake
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meta_version = 1.0.0
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[ssh]
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type = tcp
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local_port = 22
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remote_port = 6000
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meta_id = 123
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```
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@ -0,0 +1,171 @@
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### 服务端管理插件
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frp 管理插件的作用是在不侵入自身代码的前提下，扩展 frp 服务端的能力。
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frp 管理插件会以单独进程的形式运行，并且监听在一个端口上，对外提供 RPC 接口，响应 frps 的请求。
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frps 在执行某些操作前，会根据配置向管理插件发送 RPC 请求，根据管理插件的响应来执行相应的操作。
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### RPC 请求
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管理插件接收到操作请求后，可以给出三种回应。
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* 拒绝操作，需要返回拒绝操作的原因。
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* 允许操作，不需要修改操作内容。
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* 允许操作，对操作请求进行修改后，返回修改后的内容。
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### 接口
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接口路径可以在 frps 配置中为每个插件单独配置，这里以 `/handler` 为例。
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Request
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```
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POST /handler
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{
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"version": "0.1.0",
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"op": "Login",
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"content": {
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... // 具体的操作信息
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}
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}
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请求 Header
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X-Frp-Reqid: 用于追踪请求
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```
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Response
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非 200 的返回都认为是请求异常。
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拒绝执行操作
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```
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{
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"reject": true,
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"reject_reason": "invalid user"
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}
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```
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允许且内容不需要变动
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```
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{
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"reject": false,
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"unchange": true
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}
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```
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允许且需要替换操作内容
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```
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{
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"unchange": "false",
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"content": {
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... // 替换后的操作信息，格式必须和请求时的一致
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}
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}
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```
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### 操作类型
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目前插件支持管理的操作类型有 `Login` 和 `NewProxy`。
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#### Login
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用户登录操作信息
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```
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{
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"content": {
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"version": <string>,
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"hostname": <string>,
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"os": <string>,
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"arch": <string>,
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"user": <string>,
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"timestamp": <int64>,
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"privilege_key": <string>,
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"run_id": <string>,
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"pool_count": <int>,
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"metas": map<string>string
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}
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}
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```
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#### NewProxy
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创建代理的相关信息
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```
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{
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"content": {
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"user": {
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"user": <string>,
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"metas": map<string>string
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},
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"proxy_name": <string>,
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"proxy_type": <string>,
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"use_encryption": <bool>,
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"use_compression": <bool>,
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"group": <string>,
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"group_key": <string>,
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// tcp and udp only
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"remote_port": <int>,
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// http and https only
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"custom_domains": []<string>,
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"subdomain": <string>,
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"locations": <string>,
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"http_user": <string>,
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"http_pwd": <string>,
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"host_header_rewrite": <string>,
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"headers": map<string>string,
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"metas": map<string>string
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}
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}
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```
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### frps 中插件配置
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```ini
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[common]
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bind_port = 7000
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[plugin.user-manager]
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addr = 127.0.0.1:9000
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path = /handler
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ops = Login
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[plugin.port-manager]
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addr = 127.0.0.1:9001
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path = /handler
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ops = NewProxy
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```
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addr: 插件监听的网络地址。
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path: 插件监听的 HTTP 请求路径。
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ops: 插件需要处理的操作列表，多个 op 以英文逗号分隔。
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### 元数据
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为了减少 frps 的代码修改，同时提高管理插件的扩展能力，在 frpc 的配置文件中引入自定义元数据的概念。元数据会在调用 RPC 请求时发送给插件。
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元数据以 `meta_` 开头，可以配置多个，元数据分为两种，一种配置在 `common` 下，一种配置在各个 proxy 中。
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```
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# frpc.ini
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[common]
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server_addr = 127.0.0.1
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server_port = 7000
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user = fake
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meta_token = fake
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meta_version = 1.0.0
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[ssh]
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type = tcp
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local_port = 22
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remote_port = 6000
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meta_id = 123
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```
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