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package zone
import (
"context"
"fmt"
"net/http"
"strings"
"github.com/lxc/incus/v6/internal/server/db"
"github.com/lxc/incus/v6/internal/server/db/cluster"
"github.com/lxc/incus/v6/internal/server/state"
"github.com/lxc/incus/v6/shared/api"
"github.com/lxc/incus/v6/shared/util"
)
// LoadByName loads and initializes a Network zone from the database by name.
func LoadByName(s *state.State, name string) (NetworkZone, error) {
var dbZone []cluster.NetworkZone
var zoneInfo *api.NetworkZone
err := s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
var err error
filter := cluster.NetworkZoneFilter{Name: &name}
dbZone, err = cluster.GetNetworkZones(ctx, tx.Tx(), filter)
if err != nil {
return err
}
if len(dbZone) != 1 {
return fmt.Errorf("Loading network zone named %s returned an unexpected amount of results: %d", name, len(dbZone))
}
zoneInfo, err = dbZone[0].ToAPI(ctx, tx.Tx())
if err != nil {
return err
}
return nil
})
if err != nil {
return nil, err
}
var zone NetworkZone = &zone{}
zone.init(s, int64(dbZone[0].ID), dbZone[0].Project, zoneInfo)
return zone, nil
}
// LoadByNameAndProject loads and initializes a Network zone from the database by project and name.
func LoadByNameAndProject(s *state.State, projectName string, name string) (NetworkZone, error) {
var dbZone *cluster.NetworkZone
var zoneInfo *api.NetworkZone
err := s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
var err error
filter := cluster.NetworkZoneFilter{
Project: &projectName,
Name: &name,
}
zones, err := cluster.GetNetworkZones(ctx, tx.Tx(), filter)
if err != nil {
return err
}
if len(zones) == 0 {
return api.StatusErrorf(http.StatusNotFound, "Network zone not found")
}
dbZone = &zones[0]
zoneInfo, err = dbZone.ToAPI(ctx, tx.Tx())
if err != nil {
return err
}
return nil
})
if err != nil {
return nil, err
}
var zone NetworkZone = &zone{}
zone.init(s, int64(dbZone.ID), projectName, zoneInfo)
return zone, nil
}
// Create validates supplied record and creates new Network zone record in the database.
func Create(s *state.State, projectName string, zoneInfo *api.NetworkZonesPost) error {
var zone NetworkZone = &zone{}
zone.init(s, -1, projectName, nil)
err := zone.validateName(zoneInfo.Name)
if err != nil {
return err
}
err = zone.validateConfig(&zoneInfo.NetworkZonePut)
if err != nil {
return err
}
// Load the project.
var p *api.Project
err = s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
project, err := cluster.GetProject(ctx, tx.Tx(), projectName)
if err != nil {
return err
}
p, err = project.ToAPI(ctx, tx.Tx())
return err
})
if err != nil {
return err
}
// Validate restrictions.
if util.IsTrue(p.Config["restricted"]) {
found := false
for _, entry := range strings.Split(p.Config["restricted.networks.zones"], ",") {
entry = strings.TrimSpace(entry)
if zoneInfo.Name == entry || strings.HasSuffix(zoneInfo.Name, "."+entry) {
found = true
break
}
}
if !found {
return api.StatusErrorf(http.StatusForbidden, "Project isn't allowed to use this DNS zone")
}
}
err = s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
dbZone := cluster.NetworkZone{
Project: projectName,
Name: zoneInfo.Name,
Description: zoneInfo.Description,
}
id, err := cluster.CreateNetworkZone(ctx, tx.Tx(), dbZone)
if err != nil {
return err
}
err = cluster.CreateNetworkZoneConfig(ctx, tx.Tx(), id, zoneInfo.Config)
if err != nil {
return err
}
return nil
})
if err != nil {
return err
}
// Trigger a refresh of the TSIG entries.
err = s.DNS.UpdateTSIG()
if err != nil {
return err
}
return nil
}
// Exists checks the zone name(s) provided exists.
// If multiple names are provided, also checks that duplicate names aren't specified in the list.
func Exists(s *state.State, name ...string) error {
checkedzoneNames := make(map[string]struct{}, len(name))
err := s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
for _, zoneName := range name {
filter := cluster.NetworkZoneFilter{Name: &zoneName}
dbZone, err := cluster.GetNetworkZones(ctx, tx.Tx(), filter)
if err != nil {
return err
}
if len(dbZone) != 1 {
return fmt.Errorf("Loading network zone named %s returned an unexpected amount of results: %d", zoneName, len(dbZone))
}
status, err := cluster.NetworkZoneExists(ctx, tx.Tx(), dbZone[0].Project, zoneName)
if !status {
return fmt.Errorf("Network zone %q does not exist", zoneName)
}
if err != nil {
return fmt.Errorf("Error when checking existence of %q network zone in project %q", zoneName, dbZone[0].Project)
}
_, found := checkedzoneNames[zoneName]
if found {
return fmt.Errorf("Network zone %q specified multiple times", zoneName)
}
checkedzoneNames[zoneName] = struct{}{}
}
return nil
})
if err != nil {
return err
}
return nil
}
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