| 1 | package memoria |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "net/http" |
| 6 | "time" |
| 7 | |
| 8 | "amadan.net/oficina/home/connect" |
| 9 | "amadan.net/oficina/home/connect/linkstore" |
| 10 | "amadan.net/oficina/home/handoff" |
| 11 | "amadan.net/rastrillo/rastrillo/csrf" |
| 12 | "amadan.net/rastrillo/rastrillo/migrate" |
| 13 | "amadan.net/rastrillo/rastrillo/sessions" |
| 14 | ) |
| 15 | |
| 16 | type homeIntegration struct { |
| 17 | bridge *connect.Bridge |
| 18 | routes *connect.Routes |
| 19 | sessions *sessions.Sessions |
| 20 | } |
| 21 | |
| 22 | // WireHome keeps the local account's address as the subject used for existing |
| 23 | // owner and sibling authorization. Home subjects never stand in for addresses. |
| 24 | func (a *app) WireHome(mux *http.ServeMux, cfg Config) error { |
| 25 | if cfg.Home == nil { |
| 26 | return nil |
| 27 | } |
| 28 | if a.home != nil || a.auth == nil || mux == nil { |
| 29 | return errHomeIdentity |
| 30 | } |
| 31 | h := cfg.Home |
| 32 | schema := migrate.Merge(homeIdentitySchema, migrate.MustFromFS(handoff.Migrations, "oficina_handoff"), migrate.MustFromFS(linkstore.Migrations, linkstore.SchemaNamespace)) |
| 33 | if _, err := migrate.Apply(context.Background(), a.db, schema); err != nil { |
| 34 | return errHomeIdentity |
| 35 | } |
| 36 | sess, err := sessions.New(sessions.Config{DB: a.db.Writer(), Origin: cfg.Origin, SigninPath: "/signin", Logger: a.logger}) |
| 37 | if err != nil || sess.CookieName() != a.auth.SessionCookie() { |
| 38 | return errHomeIdentity |
| 39 | } |
| 40 | read := func(r *http.Request) (*connect.Session, error) { |
| 41 | s, ok := sess.From(r) |
| 42 | if !ok { |
| 43 | return nil, nil |
| 44 | } |
| 45 | return &connect.Session{Subject: s.Subject, Method: s.Method, AuthTime: s.AuthTime, At: s.At}, nil |
| 46 | } |
| 47 | b, err := connect.New(connect.Config{DB: a.db.Writer(), Origin: cfg.Origin, Issuer: h.Issuer, ConsumerID: h.ConsumerID, Namespace: "oficina/memoria", SessionCookie: sess.CookieName(), Keys: h.Keys, DEK: h.DEK, ReadSession: read, |
| 48 | MintHomeSession: func(w http.ResponseWriter, r *http.Request, s connect.Session) error { |
| 49 | return sess.SignIn(w, r, sessions.Session{Subject: s.Subject, Method: s.Method, AuthTime: s.AuthTime}) |
| 50 | }, |
| 51 | LookupLocalSession: func(ctx context.Context, s connect.Session) (connect.Person, error) { |
| 52 | id, label, err := a.localHomeIdentity(ctx, sessions.Session{Subject: s.Subject, Method: s.Method, AuthTime: s.AuthTime, At: s.At}) |
| 53 | return connect.Person{ID: id, Label: label}, err |
| 54 | }, |
| 55 | LookupPerson: func(ctx context.Context, q linkstore.Queryer, id int64) (string, error) { |
| 56 | return a.lookupHomeLocalIdentity(ctx, q, id) |
| 57 | }, Render: a.renderHome, |
| 58 | }) |
| 59 | if err != nil { |
| 60 | return errHomeIdentity |
| 61 | } |
| 62 | routes, err := connect.NewRoutes(b, connect.RoutesConfig{Namespace: "oficina/memoria", Origin: cfg.Origin, Issuer: h.Issuer, SessionCookie: sess.CookieName(), DEK: h.DEK, ReadSession: read, SignOut: sess.SignOut, LocalSignin: a.localSignin, Protect: csrf.Protect(cfg.Origin), Render: a.renderHome}) |
| 63 | if err != nil { |
| 64 | return errHomeIdentity |
| 65 | } |
| 66 | a.home = &homeIntegration{bridge: b, routes: routes, sessions: sess} |
| 67 | a.directory = h.Directory |
| 68 | return nil |
| 69 | } |
| 70 | |
| 71 | func (a *app) homeMiddleware(origin string) func(http.Handler) http.Handler { |
| 72 | return func(next http.Handler) http.Handler { |
| 73 | local := csrf.Protect(origin)(next) |
| 74 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 75 | if a.home != nil { |
| 76 | a.home.routes.Middleware(next).ServeHTTP(w, r) |
| 77 | return |
| 78 | } |
| 79 | local.ServeHTTP(w, r) |
| 80 | }) |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | // signin is GET /signin. With Home configured it is connect's handler, |
| 85 | // which remembers return_to for the Home exchange and, for a live session, |
| 86 | // skips straight to the destination. That skip reads the session cookie |
| 87 | // and nothing else, so the ADMISSION CHECK RUNS HERE FIRST: somebody who |
| 88 | // has lost access is signed out and told so, rather than bounced between |
| 89 | // /signin and a page that refuses them (Astra on Docs #65 and Sheets #39). |
| 90 | func (a *app) signin(w http.ResponseWriter, r *http.Request) { |
| 91 | if a.home != nil { |
| 92 | if _, st := a.admissionOf(r); st == removed { |
| 93 | a.offboard(w, r) |
| 94 | return |
| 95 | } |
| 96 | a.home.sessions.Middleware(http.HandlerFunc(a.home.routes.Signin)).ServeHTTP(w, r) |
| 97 | return |
| 98 | } |
| 99 | a.localSignin(w, r) |
| 100 | } |
| 101 | |
| 102 | func (a *app) homeAccount(w http.ResponseWriter, r *http.Request) { |
| 103 | s, ok := a.home.sessions.From(r) |
| 104 | if ok { |
| 105 | if _, fresh := connect.FreshLocal(connect.Session{Subject: s.Subject, Method: s.Method, AuthTime: s.AuthTime, At: s.At}, time.Now()); fresh { |
| 106 | if _, _, err := a.ensureHomeLocalIdentity(r.Context(), s); err != nil { |
| 107 | a.renderHome(w, r, "failed", "", http.StatusForbidden) |
| 108 | return |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | a.home.routes.Account(w, r) |
| 113 | } |
| 114 | |
amadan