Feat: aria2 download and transfer in slave node (#1040)

* Feat: retrieve nodes from data table

* Feat: master node ping slave node in REST API

* Feat: master send scheduled ping request

* Feat: inactive nodes recover loop

* Modify: remove database operations from aria2 RPC caller implementation

* Feat: init aria2 client in master node

* Feat: Round Robin load balancer

* Feat: create and monitor aria2 task in master node

* Feat: salve receive and handle heartbeat

* Fix: Node ID will be 0 in download record generated in older version

* Feat: sign request headers with all `X-` prefix

* Feat: API call to slave node will carry meta data in headers

* Feat: call slave aria2 rpc method from master

* Feat: get slave aria2 task status
Feat: encode slave response data using gob

* Feat: aria2 callback to master node / cancel or select task to slave node

* Fix: use dummy aria2 client when caller initialize failed in master node

* Feat: slave aria2 status event callback / salve RPC auth

* Feat: prototype for slave driven filesystem

* Feat: retry for init aria2 client in master node

* Feat: init request client with global options

* Feat: slave receive async task from master

* Fix: competition write in request header

* Refactor: dependency initialize order

* Feat: generic message queue implementation

* Feat: message queue implementation

* Feat: master waiting slave transfer result

* Feat: slave transfer file in stateless policy

* Feat: slave transfer file in slave policy

* Feat: slave transfer file in local policy

* Feat: slave transfer file in OneDrive policy

* Fix: failed to initialize update checker http client

* Feat: list slave nodes for dashboard

* Feat: test aria2 rpc connection in slave

* Feat: add and save node

* Feat: add and delete node in node pool

* Fix: temp file cannot be removed when aria2 task fails

* Fix: delete node in admin panel

* Feat: edit node and get node info

* Modify: delete unused settings

pkg/filesystem/driver/oss/callback.go

@@ -42,7 +42,7 @@ func GetPublicKey(r *http.Request) ([]byte, error) {
 	}
 
 	// 获取公钥
-	client := request.HTTPClient{}
+	client := request.NewClient()
 	body, err := client.Request("GET", string(pubURL), nil).
 		CheckHTTPResponse(200).
 		GetResponse()

pkg/filesystem/driver/oss/handler_test.go

@@ -292,7 +292,7 @@ func TestDriver_Get(t *testing.T) {
 			BucketName: "test",
 			Server:     "oss-cn-shanghai.aliyuncs.com",
 		},
-		HTTPClient: request.HTTPClient{},
+		HTTPClient: request.NewClient(),
 	}
 	cache.Set("setting_preview_timeout", "3600", 0)