Improve the make-user command

cmd/salty-chat/makeuser.go

@@ -17,10 +17,13 @@ so that it is accessible at a top-level domain or sub-domain at the URL:
 
 {{ .Addr.HashURI }}
 
+mkdir -p .well-known/salty
+cat > .well-known/salty/{{ .Addr.Hash }}.json << EOF
 {
   "endpoint": "{{ .Config.Endpoint }}",
   "key": "{{ .Config.Key }}"
 }
+EOF
 
 To verify you have done this correctly:
 

lookup.go

@@ -26,6 +26,11 @@ func (a Addr) String() string {
 	return fmt.Sprintf("%s@%s", a.User, a.Domain)
 }
 
+// Hash returns the Hex(SHA256Sum()) of the Address
+func (a Addr) Hash() string {
+	return fmt.Sprintf("%x", sha256.Sum256([]byte(a.String())))
+}
+
 // Formatted returns a formatted user used in the Salty Message Format
 // <timestamp\t(<user>) <message>\n
 func (a Addr) Formatted() string {
@@ -39,7 +44,7 @@ func (a Addr) URI() string {
 
 // HashURI returns the Well-Known HashURI for this Addr
 func (a Addr) HashURI() string {
-	return fmt.Sprintf("https://%s/.well-known/salty/%x.json", a.Domain, sha256.Sum256([]byte(a.String())))
+	return fmt.Sprintf("https://%s/.well-known/salty/%s.json", a.Domain, a.Hash())
 }
 
 // ParseAddr parsers a Salty Address for a user into it's user and domain

utils.go

@@ -4,15 +4,14 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"html/template"
 	"io"
 	"net/http"
 	"os"
 	"os/exec"
 	"syscall"
+	"text/template"
 	"time"
 
-	"github.com/Masterminds/sprig/v3"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -54,9 +53,7 @@ func FileExists(name string) bool {
 // context `ctx` as input into the template.
 // Typically used to render the results into a Markdown document.
 func RenderString(s string, ctx interface{}) (string, error) {
-	t := template.Must(
-		template.New("s").Funcs(sprig.FuncMap()).Parse(s),
-	)
+	t := template.Must(template.New("s").Parse(s))
 	buf := bytes.NewBuffer([]byte{})
 	err := t.Execute(buf, ctx)
 	if err != nil {