| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "os" |
| 6 | "path/filepath" |
| 7 | |
| 8 | "github.com/carlosframework/platform/internal/hostbox" |
| 9 | "github.com/carlosframework/platform/internal/hostguard" |
| 10 | "github.com/carlosframework/platform/internal/layout" |
| 11 | "github.com/carlosframework/platform/internal/provision" |
| 12 | "github.com/carlosframework/platform/internal/release" |
| 13 | "github.com/carlosframework/platform/internal/rootstate" |
| 14 | ) |
| 15 | |
| 16 | func (h ClaimRootHTTP) rootEmptyCensus() *hostbox.EmptyInstallationCensus { |
| 17 | census := *h.Reconcile.Census |
| 18 | census.OtherPath = h.rootSiblingPath |
| 19 | return &census |
| 20 | } |
| 21 | |
| 22 | func (h ClaimRootHTTP) rootSiblingPath(ctx context.Context, selected, root, rel string) (bool, error) { |
| 23 | parent := filepath.ToSlash(filepath.Dir(rel)) |
| 24 | instance, instancePath := layout.InstanceCensusName(rel) |
| 25 | if !(root == "data" && instancePath || root == "opt" && (parent == "live" || parent == "previous")) { |
| 26 | return false, nil |
| 27 | } |
| 28 | payloads, err := h.Launches.GenerationPayloads(ctx) |
| 29 | if err != nil { |
| 30 | return false, err |
| 31 | } |
| 32 | for _, p := range payloads { |
| 33 | in := p.Inventory |
| 34 | if in.Host == selected { |
| 35 | continue |
| 36 | } |
| 37 | candidate := root == "data" && (instance == provision.InstanceID(in.Host)) || root == "opt" && (rel == "live/"+in.Host || rel == "previous/"+in.Host) |
| 38 | if !candidate { |
| 39 | continue |
| 40 | } |
| 41 | own, err := h.Stop.Coordinator.Guard.Root.Installation(ctx, in.Host, hostguard.Captured{Incarnation: in.Incarnation, Stamp: in.InstallationStamp}) |
| 42 | if err != nil { |
| 43 | return false, err |
| 44 | } |
| 45 | if own.Stamp != in.InstallationStamp { |
| 46 | continue |
| 47 | } |
| 48 | if !in.Complete || own.Host != in.Host || own.Box != in.Box || own.Enrollment != in.Enrollment || own.InventoryRevision != p.Revision || own.Record != provision.RecordKey(own.Account, own.App, own.Host) { |
| 49 | return false, os.ErrPermission |
| 50 | } |
| 51 | if root == "data" { |
| 52 | for _, e := range in.Entries { |
| 53 | if e.Kind == "path" && e.ManagedRoot == root && e.RelativePath == filepath.ToSlash(filepath.Join("instances", provision.InstanceID(in.Host))) && e.Materialization == "materialized" { |
| 54 | err := generationPayloadFiles(ctx, h.Roots[root], []hostbox.GenerationPayload{{Inventory: hostbox.StopInventory{Entries: []hostbox.StopInventoryEntry{e}}}}) |
| 55 | if err == nil && rel != e.RelativePath { |
| 56 | err = layout.VerifyInstanceCensusAlias(h.Roots[root], rel, in.Host) |
| 57 | } |
| 58 | return err == nil, err |
| 59 | } |
| 60 | } |
| 61 | return false, nil |
| 62 | } |
| 63 | state, err := rootstate.Open(release.RootGenerationsDir, false, false) |
| 64 | if err != nil { |
| 65 | return false, err |
| 66 | } |
| 67 | pins, err := (&release.RootGenerations{Store: state}).Reservations(ctx) |
| 68 | state.Close() |
| 69 | if err != nil { |
| 70 | return false, err |
| 71 | } |
| 72 | target, err := os.Readlink(filepath.Join(h.Roots[root], rel)) |
| 73 | if err != nil { |
| 74 | return false, err |
| 75 | } |
| 76 | for _, pin := range pins { |
| 77 | b := pin.Binding |
| 78 | if b.Target.Host == own.Host && b.Target.Incarnation == own.Incarnation && b.Target.Box == own.Box && b.Target.Enrollment == own.Enrollment && b.Binding.Account == own.Account && b.Binding.App == own.App && b.Record == own.Record && target == b.Path && target == release.VersionPath(h.Roots[root], own.Account, b.Version, own.App) { |
| 79 | return true, nil |
| 80 | } |
| 81 | } |
| 82 | return false, os.ErrPermission |
| 83 | } |
| 84 | return false, nil |
| 85 | } |
| 86 | |
amadan