| 1 | package serve |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "log/slog" |
| 6 | "net/http" |
| 7 | |
| 8 | "reasonix/internal/agent" |
| 9 | "reasonix/internal/control" |
| 10 | ) |
| 11 | |
| 12 | // commitLoadedResume moves an idle controller to a validated transcript while |
| 13 | // keeping write authority, event tags, and current-only publication atomic to |
| 14 | // observers. The bool reports whether the caller may publish its routing |
| 15 | // barrier and HTTP success response. |
| 16 | func (s *Server) commitLoadedResume(w http.ResponseWriter, cur control.SessionAPI, loaded *agent.Session, realPath string) bool { |
| 17 | ctrl, concrete := cur.(*control.Controller) |
| 18 | if concrete && s.leases != nil { |
| 19 | // Issue target authority directly onto the loaded candidate before Resume |
| 20 | // replaces the executor session. Rebinding the controller here would only |
| 21 | // authorize the outgoing session and leave loaded on the permissive path. |
| 22 | if err := s.leases.BindSessionAuthority(loaded); err != nil { |
| 23 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 24 | http.Error(w, "session authority: unable to bind resumed session", http.StatusInternalServerError) |
| 25 | return false |
| 26 | } |
| 27 | } |
| 28 | var tag *sessionTagSink |
| 29 | if concrete { |
| 30 | tag = s.tagFor(ctrl) |
| 31 | if tag != nil && !ctrl.UsesExclusiveSession() { |
| 32 | tag.BufferPath(realPath) |
| 33 | } |
| 34 | } |
| 35 | if hook := resumeBindHookForTest; hook != nil { |
| 36 | hook() |
| 37 | } |
| 38 | if identity, ok := cur.(control.IdentityLifecycle); ok && identity.UsesExclusiveSession() { |
| 39 | ctrl, concrete := cur.(*control.Controller) |
| 40 | if !concrete || controllerHasActiveRuntimeWork(ctrl) { |
| 41 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 42 | http.Error(w, "open legacy session: controller replacement is unavailable", http.StatusConflict) |
| 43 | return false |
| 44 | } |
| 45 | next, tag, err := s.buildTaggedMode(context.Background(), currentModelRef(ctrl), false, true) |
| 46 | if err != nil { |
| 47 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 48 | http.Error(w, "open legacy session: "+err.Error(), http.StatusConflict) |
| 49 | return false |
| 50 | } |
| 51 | if err := next.ResumeNativeSession(loaded, realPath); err != nil { |
| 52 | s.closeTaggedController(next) |
| 53 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 54 | http.Error(w, "open historical session: "+err.Error(), http.StatusConflict) |
| 55 | return false |
| 56 | } |
| 57 | next.EnableInteractiveApproval() |
| 58 | if _, bound := next.SessionRef(); !bound { |
| 59 | next.SetToolApprovalMode(ctrl.ToolApprovalMode()) |
| 60 | } |
| 61 | next.SetPlanMode(ctrl.PlanMode()) |
| 62 | next.SetOnSessionRecovered(s.sessionRecoveryHandler(next, s.leases)) |
| 63 | if s.leases != nil { |
| 64 | if err := s.leases.BindControllerAuthority(next); err != nil { |
| 65 | s.closeTaggedController(next) |
| 66 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 67 | http.Error(w, "bind legacy session authority: "+err.Error(), http.StatusInternalServerError) |
| 68 | return false |
| 69 | } |
| 70 | } |
| 71 | if ref, ok := next.SessionRef(); ok { |
| 72 | tag.PrimeIdentity(realPath, ref.SessionID) |
| 73 | } else { |
| 74 | tag.PrimePath(realPath) |
| 75 | } |
| 76 | if !s.publishControllerSwap(cur, next, realPath) { |
| 77 | s.closeTaggedController(next) |
| 78 | _ = s.rebindSessionLease(cur.SessionPath()) |
| 79 | http.Error(w, "session changed during resume", http.StatusConflict) |
| 80 | return false |
| 81 | } |
| 82 | tag.Activate() |
| 83 | cur.Close() |
| 84 | s.forgetSessionTag(ctrl) |
| 85 | return true |
| 86 | } else { |
| 87 | cur.Resume(loaded, realPath) |
| 88 | } |
| 89 | if !concrete { |
| 90 | return true |
| 91 | } |
| 92 | // Rebind dropped the controller handlers with the outgoing authority. Resume |
| 93 | // has now made loaded current, so restore its owner binding before the next |
| 94 | // /new, /clear, or /fork enters the ordinary authorized transition path. |
| 95 | if s.leases != nil && !ctrl.UsesExclusiveSession() { |
| 96 | if err := s.leases.BindControllerAuthority(ctrl); err != nil { |
| 97 | slog.Warn("serve: rebind controller authority after resume", "err", err) |
| 98 | } |
| 99 | } |
| 100 | if tag == nil { |
| 101 | if !s.publishControllerPathIfCurrent(ctrl, realPath) { |
| 102 | http.Error(w, "session changed during resume", http.StatusConflict) |
| 103 | return false |
| 104 | } |
| 105 | return true |
| 106 | } |
| 107 | // Publish current-only routing before releasing buffered Resume events so |
| 108 | // every target-tagged warning/surface is marked foreground. |
| 109 | if !s.publishControllerPathIfCurrent(ctrl, realPath) { |
| 110 | http.Error(w, "session changed during resume", http.StatusConflict) |
| 111 | return false |
| 112 | } |
| 113 | tag.Activate() |
| 114 | return true |
| 115 | } |
| 116 |