improve ParseGroupname and ParseUsername using regex

access-types.go

@@ -1,14 +1,14 @@
 package proxmoxaas_common_lib
 
 type Pool struct {
-	PoolID       string          `json:"poolid"`
-	Path         string          `json:"-"` // typically /pool/poolid from proxmox, only used internally
-	Groups       []Group         `json:"groups"`
-	Resources    map[string]any  `json:"resources"`
-	Templates    Templates       `json:"templates"`
-	AllowedNodes map[string]bool `json:"nodes-allowed"`
-	VMIDRange    VMID            `json:"vmid-allowed"`
-	Backups      Backups         `json:"backups-allowed"` // measured in numbers
+	PoolID           string          `json:"poolid"`
+	Path             string          `json:"-"` // typically /pool/poolid from proxmox, only used internally
+	Groups           []Group         `json:"groups"`
+	Resources        map[string]any  `json:"resources"`
+	Templates        Templates       `json:"templates"`
+	AllowedNodes     map[string]bool `json:"nodes-allowed"`
+	AllowedVMIDRange VMID            `json:"vmid-allowed"`
+	AllowedBackups   Backups         `json:"backups-allowed"`
 }
 
 // proxmox typically formats as gid-realm for non pve realms
@@ -44,7 +44,8 @@ type VMID struct {
 }
 
 type Backups struct {
-	Max int `json:"max"`
+	MaxPerInstance int `json:"max-per-instance"`
+	MaxTotal       int `json:"max-total"`
 }
 
 type Templates struct {

access-utils.go

@@ -2,7 +2,7 @@ package proxmoxaas_common_lib
 
 import (
 	"fmt"
-	"strings"
+	"regexp"
 )
 
 func (g Groupname) ToString() string {
@@ -14,19 +14,23 @@ func (u Username) ToString() string {
 }
 
 // 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 {
+	// <groupid>-<realm>
+	m1 := regexp.MustCompilePOSIX("([[:alnum:]]+)-([[:alnum:]]+)")
+	// <groupid> (implied pve realm)
+	m2 := regexp.MustCompilePOSIX("([[:alnum:]]+)")
+	x1 := m1.FindStringSubmatch(groupname)
+	x2 := m2.FindStringSubmatch(groupname)
+	if len(x1) == 3 {
+		g.GroupID = x1[1]
+		g.Realm = x1[2]
+		return g, nil
+
+	} else if len(x2) == 2 {
 		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>")
 	}
@@ -35,10 +39,11 @@ func ParseGroupname(groupname string) (Groupname, error) {
 // 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]
+	m := regexp.MustCompilePOSIX("([[:alnum:]]+)@([[:alnum:]]+)")
+	x := m.FindStringSubmatch(username)
+	if len(x) == 3 {
+		u.UserID = x[1]
+		u.Realm = x[2]
 		return u, nil
 	} else {
 		return u, fmt.Errorf("userid did not follow the format <userid>@<realm>")