Put index in template

go.mod

@@ -5,8 +5,6 @@ go 1.12
 require (
 	github.com/go-bindata/go-bindata v3.1.2+incompatible // indirect
 	github.com/gorilla/mux v1.7.3
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/pkg/errors v0.8.1
 	github.com/prometheus/client_golang v1.1.0
 	go.etcd.io/bbolt v1.3.3

handlers.go

@@ -2,7 +2,7 @@ package main
 
 //go:generate go get github.com/go-bindata/go-bindata
 //go:generate go get -u github.com/go-bindata/go-bindata/...
-//go:generate go-bindata -pkg $GOPACKAGE assets/
+//go:generate go-bindata -pkg $GOPACKAGE text/
 
 import (
 	"bytes"
@@ -15,6 +15,7 @@ import (
 	"net/http"
 	"net/url"
 	"strings"
+	"text/template"
 	"time"
 	"unicode"
 
@@ -56,7 +57,8 @@ var base64Alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012345
 var base64Encoder = base64.NewEncoding(base64Alphabet).WithPadding(base64.NoPadding)
 
 // Page contents
-var indexContents = MustAsset("assets/index.txt")
+var baseTemplate = template.New("empty")
+var indexTemplate = template.Must(baseTemplate.Parse(string(MustAsset("text/index.txt"))))
 
 func (t PasteType) String() (string, error) {
 	switch t {
@@ -81,8 +83,7 @@ func (t PasteState) String() (string, error) {
 }
 
 func indexGetHandler(w http.ResponseWriter, r *http.Request) {
-	_, err := w.Write(indexContents)
-	if err != nil {
+	if err := indexTemplate.Execute(w, nil); err != nil {
 		panic(err)
 	}
 }
@@ -245,7 +246,10 @@ func shortenPostHandler(w http.ResponseWriter, r *http.Request) {
 
 	saveURL, err := r.URL.Parse(string(storedPaste.Key))
 	if err != nil {
-		log.Printf("error: %v\n", errors.Wrap(err, "parsing url"))
+		err = errors.Wrap(err, "parsing url")
+		log.Printf("error: %v\n", err)
+		fmt.Fprintf(w, "internal server error: %v\n", err)
+		return
 	}
 	var base64OwnerToken = make([]byte, 24)
 	base64Encoder.Encode(base64OwnerToken, storedPaste.OwnerToken[:])