add access util functions, change internal package name to proxmoxaas_common_lib

access-utils.go

@@ -0,0 +1,46 @@
+package proxmoxaas_common_lib
+
+import (
+	"fmt"
+	"strings"
+)
+
+func (g Groupname) ToString() string {
+	return fmt.Sprintf("%s-%s", g.GroupID, g.Realm)
+}
+
+func (u Username) ToString() string {
+	return fmt.Sprintf("%s-%s", u.UserID, u.Realm)
+}
+
+// returns an error if the groupname format was not correct
+// TODO: handle group names with x-y format where y is not a registered realm
+// TODO: handle group names with x-y-z-... format
+func ParseGroupname(groupname string) (Groupname, error) {
+	g := Groupname{}
+	x := strings.Split(groupname, "-")
+	if len(x) == 1 {
+		g.GroupID = groupname
+		g.Realm = "pve"
+		return g, nil
+	} else if len(x) == 2 {
+		g.GroupID = x[0]
+		g.Realm = x[1]
+		return g, nil
+	} else {
+		return g, fmt.Errorf("groupid did not follow the format <groupid> or <groupid>-<realm>")
+	}
+}
+
+// returns an error if the username format was not correct
+func ParseUsername(username string) (Username, error) {
+	u := Username{}
+	x := strings.Split(username, "@")
+	if len(x) == 2 {
+		u.UserID = x[0]
+		u.Realm = x[1]
+		return u, nil
+	} else {
+		return u, fmt.Errorf("userid did not follow the format <userid>@<realm>")
+	}
+}