Add global constants

main.go

@@ -3,13 +3,18 @@ package main
 import (
 	"fmt"
 	"github.com/dchest/uniuri"
+	"io"
 	"io/ioutil"
 	"net/http"
 	"os"
 )
 
-var directory = "/tmp/"
-var address = "http://localhost:8080/p/"
+const (
+	directory = "/tmp/"
+	address   = "http://localhost:8080/p/"
+	length    = 4
+	text      = "$ <command> | curl -F 'paste=<-'" + address + "\n"
+)
 
 func check(e error) {
 	if e != nil {
@@ -28,7 +33,7 @@ func exists(location string) bool {
 }
 
 func generateName() string {
-	s := uniuri.NewLen(4)
+	s := uniuri.NewLen(length)
 	file := exists(directory + s)
 	if file == true {
 		generateName()
@@ -41,23 +46,22 @@ func save(buf []byte) string {
 	paste := buf[92 : len(buf)-46]
 
 	s := generateName()
-	loc := directory + s
+	location := directory + s
 
-	err := ioutil.WriteFile(loc, paste, 0644)
+	err := ioutil.WriteFile(location, paste, 0644)
 	check(err)
 
-	url := address + s
-	return url
+	return s
 }
 
 func pasteHandler(w http.ResponseWriter, r *http.Request) {
 	switch r.Method {
 	case "GET":
-		text := "$ <command> | curl -F 'paste=<-' " + address
 		fmt.Fprintf(w, text)
 	case "POST":
 		buf, _ := ioutil.ReadAll(r.Body)
-		fmt.Fprintf(w, save(buf))
+		io.WriteString(w, address+save(buf)+"\n")
+
 	case "DELETE":
 		// Remove the record.
 	}
@@ -65,7 +69,7 @@ func pasteHandler(w http.ResponseWriter, r *http.Request) {
 
 func main() {
 	http.HandleFunc("/", pasteHandler)
-	http.Handle("/p/", http.StripPrefix("/p/", http.FileServer(http.Dir("/tmp"))))
+	http.Handle("/p/", http.StripPrefix("/p/", http.FileServer(http.Dir(directory))))
 
 	http.ListenAndServe(":8080", nil)