Adding JWT Audience to support array of audiences

map_claims.go

@@ -13,8 +13,19 @@ type MapClaims map[string]interface{}
 // Compares the aud claim against cmp.
 // If required is false, this method will return true if the value matches or is unset
 func (m MapClaims) VerifyAudience(cmp string, req bool) bool {
-	aud, _ := m["aud"].(string)
-	return verifyAud(aud, cmp, req)
+	switch m["aud"].(type) {
+	case string:
+		aud := m["aud"].(string)
+		return verifyAud(aud, cmp, req)
+	default:
+		auds := m["aud"].([]interface{})
+		for _, aud := range auds {
+			if verifyAud(aud.(string), cmp, req) {
+				return true
+			}
+		}
+		return false
+	}
 }
 
 // Compares the exp claim against cmp.