New: Make host configurable, Fix #69

Former-commit-id: e087e6952610f7baeb212e12cef44eafcb06613d

README.md

@@ -33,7 +33,7 @@ To run just double click or from the command line:
 cowyo
 ```
 
-and it will start a server listening  on `0.0.0.0:8050`. To view it, just go to http://localhost:8050 (the server prints out the local IP for your info if you want to do LAN networking). You can change the port with `-port X`.
+and it will start a server listening  on `0.0.0.0:8050`. To view it, just go to http://localhost:8050 (the server prints out the local IP for your info if you want to do LAN networking). You can change the port with `-port X`, and you can listen *only* on localhost using `-host localhost`.
 
 ## Usage
 

handlers.go

@@ -12,7 +12,7 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-func serve(port string) {
+func serve(host, port string) {
 	gin.SetMode(gin.ReleaseMode)
 	router := gin.Default()
 	router.HTMLRender = loadTemplates("index.tmpl")
@@ -32,7 +32,7 @@ func serve(port string) {
 	router.DELETE("/oldlist", handleClearOldListItems)
 	router.DELETE("/listitem", deleteListItem)
 
-	router.Run(":" + port)
+	router.Run(host + ":" + port)
 }
 
 func loadTemplates(list ...string) multitemplate.Render {

main.go

@@ -23,8 +23,12 @@ func main() {
 		}
 		pathToData = c.GlobalString("data")
 		os.MkdirAll(pathToData, 0755)
-		fmt.Printf("\nRunning cowyo server (version %s) at http://%s:%s\n\n", version, GetLocalIP(), c.GlobalString("port"))
-		serve(c.GlobalString("port"))
+		host := c.GlobalString("host")
+		if host == "" {
+			host = GetLocalIP()
+		}
+		fmt.Printf("\nRunning cowyo server (version %s) at http://%s:%s\n\n", version, host, c.GlobalString("port"))
+		serve(c.GlobalString("host"), c.GlobalString("port"))
 		return nil
 	}
 	app.Flags = []cli.Flag{
@@ -38,6 +42,11 @@ func main() {
 			Value: "",
 			Usage: "data folder for migrating",
 		},
+		cli.StringFlag{
+			Name:  "host",
+			Value: "",
+			Usage: "host to use",
+		},
 		cli.StringFlag{
 			Name:  "port,p",
 			Value: "8050",