Move backend to backend dir

backend/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 aceberg
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

backend/Makefile

@@ -7,13 +7,16 @@ mod:
 run:
 	cd cmd/WatchYourLAN/ && \
 	sudo \
-	go run . #-c /data/config #-n http://192.168.2.3:8850
+	go run . #-n http://192.168.2.3:8850
 
 fmt:
 	go fmt ./...
 
 lint:
-# 	golangci-lint run
+	golangci-lint run
 	golint ./...
 
-check: fmt lint
+check: fmt lint
+
+swag:
+	swag init --parseInternal --dir cmd/WatchYourLAN

backend/internal/portscan/scan.go

@@ -13,13 +13,12 @@ func IsOpen(host, port string) bool {
 	target := fmt.Sprintf("%s:%s", host, port)
 
 	conn, err := net.DialTimeout("tcp", target, timeout)
-	if err != nil {
-		return false
-	}
 
-	if conn != nil {
+	if err == nil {
-		conn.Close()
+		err = conn.Close()
-		return true
+		if err == nil {
+			return true
+		}
 	}
 
 	return false

frontend/Makefile

@@ -3,11 +3,11 @@ USR_NAME=aceberg
 
 build:
 	npm run build && \
-	rm ../internal/web/public/assets/* && \
+	rm ../backend/internal/web/public/assets/* && \
-	cp -r dist/assets ../internal/web/public
+	cp -r dist/assets ../backend/internal/web/public
 
 replace:
-	cd ../internal/web/public/assets/ && \
+	cd ../backend/internal/web/public/assets/ && \
 	cat index.js | sed 's/assets/fs\/public\/assets/g;s/http:\/\/0.0.0.0:8840//' > tmp && \
 	mv tmp index.js