feature: Add wolf rbac plugin

conf/config.yaml

@@ -95,6 +95,7 @@ plugins:                          # plugin list
   - response-rewrite
   - fault-injection
   - udp-logger
+  - wolf-rbac
 
 stream_plugins:
   - mqtt-proxy

doc/plugins/wolf-rbac-cn.md

@@ -0,0 +1,207 @@
+<!--
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+-->
+
+[English](wolf-rbac.md)
+
+# 目录
+
+- [**名字**](#名字)
+- [**属性**](#属性)
+- [**依赖项**](#依赖项)
+- [**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
+
+`wolf-rbac`是一个认证及授权(rbac)插件，它需要与 `consumer` 一起配合才能工作。同时需要添加 `wolf-rbac` 到一个 `service` 或 `route`中。
+rbac功能由[wolf](https://github.com/iGeeky/wolf)提供, 有关wolf的更多信息, 请参考[wolf文档](https://github.com/iGeeky/wolf)。
+
+
+## 属性
+
+* `server`: 设置`wolf-server`的访问地址, 如果未设置, 默认为: `http://127.0.0.1:10080`.
+* `appid`: 设置应用id, 该应用id, 需要是在`wolf-console`中已经添加的应用id.
+
+
+## 依赖项
+
+### 安装wolf, 并启动服务
+
+[Wolf快速起步](https://github.com/iGeeky/wolf/blob/master/quick-start-with-docker/README-CN.md)
+
+### 添加应用, 管理员, 普通用户, 权限, 资源 及给用户授权.
+
+[Wolf管理使用](https://github.com/iGeeky/wolf/blob/master/docs/usage.md)
+
+
+## 如何启用
+
+1. 创建一个 consumer 对象，并设置插件 `wolf-rbac` 的值。
+
+```shell
+curl http://127.0.0.1:9080/apisix/admin/consumers -X PUT -d '
+{
+  "username":"wolf_rbac",
+  "plugins":{
+    "wolf-rbac":{
+      "server":"http://127.0.0.1:10080",
+      "appid":"restful"
+    }
+  },
+  "desc":"wolf-rbac"
+}'
+```
+
+你可以使用浏览器打开 dashboard：`http://127.0.0.1:9080/apisix/dashboard/`，通过 web 界面来完成上面的操作，先增加一个 consumer：
+![](../images/plugin/wolf-rbac-1.png)
+
+然后在 consumer 页面中添加 wolf-rbac 插件：
+![](../images/plugin/wolf-rbac-2.png)
+
+注意: 上面填写的`appid`需要在wolf控制台中已经存在的.
+
+2. 创建 Route 或 Service 对象，并开启 `wolf-rbac` 插件。
+
+```shell
+curl http://127.0.0.1:9080/apisix/admin/routes/1 -X PUT -d '
+{
+    "methods": ["GET"],
+    "uri": "/*",
+    "plugins": {
+        "wolf-rbac": {}
+    },
+    "upstream": {
+        "type": "roundrobin",
+        "nodes": {
+            "www.baidu.com:80": 1
+        }
+    }
+}'
+```
+
+## 测试插件
+
+#### 首先进行登录获取 `wolf-rbac` token:
+
+下面的`appid`, `username`, `password`必须为wolf系统中真实存在的.
+
+* 以POST application/json方式登陆.
+
+```shell
+curl http://127.0.0.1:9080/apisix/plugin/wolf-rbac/login -i \
+-H "Content-Type: application/json" \
+-d '{"appid": "restful", "username":"test", "password":"user-password"}'
+
+HTTP/1.1 200 OK
+Date: Wed, 24 Jul 2019 10:33:31 GMT
+Content-Type: text/plain
+Transfer-Encoding: chunked
+Connection: keep-alive
+Server: APISIX web server
+{"rbac_token":"V1#restful#eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6NzQ5LCJ1c2VybmFtZSI6InRlc3QiLCJtYW5hZ2VyIjoiIiwiYXBwaWQiOiJyZXN0ZnVsIiwiaWF0IjoxNTc5NDQ5ODQxLCJleHAiOjE1ODAwNTQ2NDF9.n2-830zbhrEh6OAxn4K_yYtg5pqfmjpZAjoQXgtcuts","user_info":{"nickname":"test","username":"test","id":"749"}}
+```
+
+* 以POST x-www-form-urlencoded方式登陆
+
+```shell
+curl http://127.0.0.1:9080/apisix/plugin/wolf-rbac/login -i \
+-H "Content-Type: application/x-www-form-urlencoded" \
+-d 'appid=restful&username=test&password=user-password'
+```
+
+
+#### 使用获取到的 token 进行请求尝试
+
+* 缺少 token
+
+```shell
+curl http://127.0.0.1:9080/ -H"Host: www.baidu.com" -i
+
+HTTP/1.1 401 Unauthorized
+...
+{"message":"Missing rbac token in request"}
+```
+
+* token 放到请求头(Authorization)中：
+
+```shell
+curl http://127.0.0.1:9080/ -H"Host: www.baidu.com" \
+-H 'Authorization: V1#restful#eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6NzQ5LCJ1c2VybmFtZSI6InRlc3QiLCJtYW5hZ2VyIjoiIiwiYXBwaWQiOiJyZXN0ZnVsIiwiaWF0IjoxNTc5NDQ5ODQxLCJleHAiOjE1ODAwNTQ2NDF9.n2-830zbhrEh6OAxn4K_yYtg5pqfmjpZAjoQXgtcuts' -i
+
+HTTP/1.1 200 OK
+
+<!DOCTYPE html>
+```
+
+* token 放到请求头(x-rbac-token)中：
+
+```shell
+curl http://127.0.0.1:9080/ -H"Host: www.baidu.com" \
+-H 'x-rbac-token: V1#restful#eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6NzQ5LCJ1c2VybmFtZSI6InRlc3QiLCJtYW5hZ2VyIjoiIiwiYXBwaWQiOiJyZXN0ZnVsIiwiaWF0IjoxNTc5NDQ5ODQxLCJleHAiOjE1ODAwNTQ2NDF9.n2-830zbhrEh6OAxn4K_yYtg5pqfmjpZAjoQXgtcuts' -i
+
+
+HTTP/1.1 200 OK
+
+<!DOCTYPE html>
+```
+
+* token 放到请求参数中：
+
+```shell
+curl 'http://127.0.0.1:9080?rbac_token=V1%23restful%23eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6NzQ5LCJ1c2VybmFtZSI6InRlc3QiLCJtYW5hZ2VyIjoiIiwiYXBwaWQiOiJyZXN0ZnVsIiwiaWF0IjoxNTc5NDQ5ODQxLCJleHAiOjE1ODAwNTQ2NDF9.n2-830zbhrEh6OAxn4K_yYtg5pqfmjpZAjoQXgtcuts' -H"Host: www.baidu.com" -i
+
+
+HTTP/1.1 200 OK
+
+<!DOCTYPE html>
+```
+
+* token 放到 cookie 中：
+
+```shell
+curl http://127.0.0.1:9080 -H"Host: www.baidu.com" \
+--cookie x-rbac-token=V1#restful#eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6NzQ5LCJ1c2VybmFtZSI6InRlc3QiLCJtYW5hZ2VyIjoiIiwiYXBwaWQiOiJyZXN0ZnVsIiwiaWF0IjoxNTc5NDQ5ODQxLCJleHAiOjE1ODAwNTQ2NDF9.n2-830zbhrEh6OAxn4K_yYtg5pqfmjpZAjoQXgtcuts -i
+
+
+HTTP/1.1 200 OK
+
+<!DOCTYPE html>
+```
+
+## 禁用插件
+
+当你想去掉 `rbac-wolf` 插件的时候，很简单，在routes中的插件配置中把对应的 `插件` 配置删除即可，无须重启服务，即刻生效：
+
+```shell
+curl http://127.0.0.1:9080/apisix/admin/routes/1 -X PUT -d '
+{
+    "methods": ["GET"],
+    "uri": "/*",
+    "plugins": {
+    },
+    "upstream": {
+        "type": "roundrobin",
+        "nodes": {
+            "www.baidu.com:80": 1
+        }
+    }
+}'
+```
+