Generate salts when empty

model/utils.go

@@ -5,6 +5,7 @@ package model
 
 import (
 	"bytes"
+	"crypto/rand"
 	"encoding/base32"
 	"encoding/json"
 	"fmt"
@@ -81,6 +82,17 @@ func NewId() string {
 	return b.String()
 }
 
+func NewRandomString(length int) string {
+	var b bytes.Buffer
+	str := make([]byte, length+8)
+	rand.Read(str)
+	encoder := base32.NewEncoder(encoding, &b)
+	encoder.Write(str)
+	encoder.Close()
+	b.Truncate(length) // removes the '==' padding
+	return b.String()
+}
+
 // GetMillis is a convience method to get milliseconds since epoch.
 func GetMillis() int64 {
 	return time.Now().UnixNano() / int64(time.Millisecond)