1 files changed, 18 insertions, 0 deletions

diff --git a/util.go b/util.go
index 10709e2..7385dfd 100644
--- a/util.go
+++ b/util.go
@@ -1,6 +1,8 @@
 package main
 
 import (
+        "crypto/sha256"
+        "encoding/hex"
         "net/url"
         "strings"
 )
@@ -41,3 +43,19 @@ func URLMustParse(u string) *url.URL {
 func CompareUpper(lhs, rhs string) bool {
         return strings.ToUpper(lhs) == strings.ToUpper(rhs)
 }
+
+func HostFromURL(u string) string {
+        o, err := url.Parse(u)
+        if err != nil {
+                return ""
+        }
+
+        h := strings.Split(o.Host, ":")
+        return h[0]
+}
+
+func Sha256Hex(v string) string {
+        s256 := sha256.New()
+        s256.Write([]byte(v))
+        return hex.EncodeToString(s256.Sum(nil))
+}