[enh] UI non-blocking request ++ reduce default timeout

wuzz.go

@@ -12,11 +12,14 @@ import (
 	"regexp"
 	"sort"
 	"strings"
+	"time"
 
 	"github.com/jroimartin/gocui"
 )
 
-var CLIENT *http.Client = &http.Client{}
+var CLIENT *http.Client = &http.Client{
+	Timeout: time.Duration(5 * time.Second),
+}
 var TRANSPORT *http.Transport = &http.Transport{}
 
 var VIEWS []string = []string{
@@ -178,17 +181,18 @@ func (a *App) SubmitRequest(g *gocui.Gui, _ *gocui.View) error {
 	vrh.Clear()
 	popup(g, "Sending request..")
 
-	go g.Execute(func(g *gocui.Gui) error {
+	go func(g *gocui.Gui) error {
 		defer g.DeleteView("popup")
-		// get views
-		vrb, _ := g.View("response-body")
-		vrh, _ := g.View("response-headers")
 		// parse url
 		base_url := getViewValue(g, "url")
 		u, err := url.Parse(base_url)
 		if err != nil {
+			g.Execute(func(g *gocui.Gui) error {
+				vrb, _ := g.View("response-body")
 				fmt.Fprintf(vrb, "URL parse error: %v", err)
 				return nil
+			})
+			return nil
 		}
 		u.RawQuery = strings.Replace(getViewValue(g, "get"), "\n", "&", -1)
 
@@ -204,8 +208,12 @@ func (a *App) SubmitRequest(g *gocui.Gui, _ *gocui.View) error {
 		// create request
 		req, err := http.NewRequest(method, u.String(), data)
 		if err != nil {
+			g.Execute(func(g *gocui.Gui) error {
+				vrb, _ := g.View("response-body")
 				fmt.Fprintf(vrb, "Request error: %v", err)
 				return nil
+			})
+			return nil
 		}
 
 		// set headers
@@ -222,8 +230,12 @@ func (a *App) SubmitRequest(g *gocui.Gui, _ *gocui.View) error {
 		// do request
 		response, err := CLIENT.Do(req)
 		if err != nil {
+			g.Execute(func(g *gocui.Gui) error {
+				vrb, _ := g.View("response-body")
 				fmt.Fprintf(vrb, "Response error: %v", err)
 				return nil
+			})
+			return nil
 		}
 		defer response.Body.Close()
 
@@ -234,6 +246,9 @@ func (a *App) SubmitRequest(g *gocui.Gui, _ *gocui.View) error {
 			a.rawResponseBody = bodyBytes
 		}
 
+		g.Execute(func(g *gocui.Gui) error {
+			vrh, _ := g.View("response-headers")
+
 			a.PrintBody(g)
 
 			// print status code and sorted headers
@@ -257,6 +272,8 @@ func (a *App) SubmitRequest(g *gocui.Gui, _ *gocui.View) error {
 			}
 			return nil
 		})
+		return nil
+	}(g)
 
 	return nil
 }