admin/pki: use symlink instead of DB to associate certificate to team

admin/pki/team.go

@@ -0,0 +1,46 @@
+package pki
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"strconv"
+)
+
+func GetCertificateAssociation(serial uint64) string {
+	return fmt.Sprintf("_AUTH_ID_%0X", serial)
+}
+
+func GetAssociations(dirname string) (assocs []string, err error) {
+	if ds, errr := ioutil.ReadDir(dirname); err != nil {
+		return nil, errr
+	} else {
+		for _, d := range ds {
+			if d.Mode() & os.ModeSymlink == os.ModeSymlink {
+				assocs = append(assocs, d.Name())
+			}
+		}
+		return
+	}
+}
+
+func GetTeamSerials(dirname string, id_team int64) (serials []uint64, err error) {
+	// As futher comparaisons will be made with strings, convert it only one time
+	str_tid := fmt.Sprintf("%d", id_team)
+
+	var assocs []string
+	if assocs, err = GetAssociations(dirname); err != nil {
+		return
+	} else {
+		for _, assoc := range assocs {
+			var tid string
+			if tid, err = os.Readlink(path.Join(dirname, assoc)); err == nil && tid == str_tid {
+				if serial, err := strconv.ParseUint(assoc[9:], 16, 64); err == nil {
+					serials = append(serials, serial)
+				}
+			}
+		}
+	}
+	return
+}