added validations for url and email

updated info messages

weekly.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"os"
+	"net/url"
+	"regexp"
 	"github.com/urfave/cli"
 	"gopkg.in/resty.v1"
 	"github.com/fatih/color"
@@ -26,19 +28,40 @@ func main() {
 			Aliases: []string{"u"},
 			Usage:   "Fully qualified URL you want to share with weekly curators. Ex: https://google.com.tr/",
 			Action: func(c *cli.Context) error {
+
+				_, err := url.ParseRequestURI(c.Args().First())
+
+				if err != nil {
+					color.Red("Error: Invalid URL. Be sure you specified fully qualified URL like " +
+						"https://google.com.tr")
+
+					return nil
+				}
+
+				email := findEnvironmentVariableByKey("EMAIL")
+
+				if !validateEmail(email) {
+					color.Red("Error: Invalid Email address.")
+
+					return nil
+				}
+
 				resp, err := resty.R().
-					SetBody(Link{Url: c.Args().First(), Email: findEnvironmentVariableByKey("EMAIL")}).
+					SetBody(Link{Url: c.Args().First(), Email: email}).
 					Post(ENDPOINT)
 
 				if err != nil {
-					color.Red("Something went wrong while sharing URL. " +
-						"Please try again and be sure you specified fully qualified URL like https://google.com.tr/.")
+					color.Red("Error: Something went wrong while sharing URL.")
 				}
 
-				if resp.StatusCode() == 201 {
-					color.Green("Thank you!")
+				if resp.StatusCode() == 422 {
+					color.Red("Error: Please check EMAIL(from your env.) and URL you've provided.")
+				} else if resp.StatusCode() == 500 {
+					color.Red("Error: API fucked up! Please getting touch with: [email protected]")
 				}
 
+				color.Green("Thank you!")
+
 				return nil
 			},
 		},
@@ -51,9 +74,16 @@ func findEnvironmentVariableByKey(key string) string {
 	value := os.Getenv(key)
 
 	if len(value) == 0 {
-		color.Yellow("Please set 'EMAIL' on your environment, we'll use your name as a sender")
+		color.Yellow("Next time If you set EMAIL= to your environment, we'll send a gift to you!")
+
 		return "[email protected]"
 	}
 
 	return value
 }
+
+func validateEmail(email string) bool {
+	Re := regexp.MustCompile(`^[a-z0-9._%+\-]+@[a-z0-9.\-]+\.[a-z]{2,4}$`)
+
+	return Re.MatchString(email)
+}