support lieral

main.go

@@ -9,6 +9,7 @@ import (
 	"log"
 	"math/rand"
 	"net/http"
+	"strings"
 	"time"
 
 	"golang.org/x/time/rate"
@@ -36,6 +37,17 @@ func main() {
 		for len(link) == 0 {
 			link = string(links[rand.Intn(len(links))])
 		}
+		if strings.HasPrefix(link, "http") {
+			serveHTTP(w, r, proxy, link)
+		} else if strings.HasPrefix(link, "literal://") {
+			w.Write([]byte(strings.TrimPrefix(link, "literal://") + "\n"))
+		}
+	})); err != nil {
+		panic(err)
+	}
+}
+
+func serveHTTP(w http.ResponseWriter, r *http.Request, proxy bool, link string) {
 	if proxy {
 		resp, err := http.Get(link)
 		if err != nil {
@@ -51,7 +63,4 @@ func main() {
 	} else {
 		http.Redirect(w, r, link, http.StatusTemporaryRedirect)
 	}
-	})); err != nil {
-		panic(err)
-	}
 }

testdata/literal

@@ -0,0 +1,2 @@
+literal://hello world
+literal://foo bar