| 1 | package connect |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "net/http" |
| 6 | |
| 7 | "amadan.net/oficina/home/connect/linkstore" |
| 8 | "amadan.net/oficina/home/handoff" |
| 9 | ) |
| 10 | |
| 11 | // Link routes belong behind the app's CSRF, session, identity and admission |
| 12 | // middleware. They recheck the actual cookie at each sensitive transition. |
| 13 | func (b *Bridge) LinkPage(w http.ResponseWriter, r *http.Request) { |
| 14 | if !b.guard(w, r, http.MethodGet, "/account/home") { |
| 15 | return |
| 16 | } |
| 17 | session, err := b.actualSession(r) |
| 18 | if err != nil || session == nil { |
| 19 | b.fail(w, r, http.StatusForbidden) |
| 20 | return |
| 21 | } |
| 22 | person, err := b.existingPerson(r, *session) |
| 23 | if err != nil { |
| 24 | b.fail(w, r, http.StatusForbidden) |
| 25 | return |
| 26 | } |
| 27 | b.render(w, r, "start", person.Label, http.StatusOK) |
| 28 | } |
| 29 | func (b *Bridge) LinkStart(w http.ResponseWriter, r *http.Request) { |
| 30 | if !b.guard(w, r, http.MethodPost, "/account/home") { |
| 31 | return |
| 32 | } |
| 33 | for _, name := range []string{homeInitCookie, homeProofCookie} { |
| 34 | if _, _, ok := homeCookie(r, name); !ok { |
| 35 | b.fail(w, r, http.StatusBadRequest) |
| 36 | return |
| 37 | } |
| 38 | } |
| 39 | local, _, err := b.localBinding(r) |
| 40 | // The reviewed local reauthentication continuation is wired separately. |
| 41 | // Stale local authentication cannot begin or reuse a linking initiation. |
| 42 | if err != nil { |
| 43 | b.fail(w, r, http.StatusForbidden) |
| 44 | return |
| 45 | } |
| 46 | path := "/" |
| 47 | if b.returnPath != nil { |
| 48 | if candidate := b.returnPath(r); handoff.SafePath(candidate) { |
| 49 | path = candidate |
| 50 | } |
| 51 | } |
| 52 | secret, err := b.links.Start(r.Context(), local, path, b.now()) |
| 53 | if err != nil { |
| 54 | b.linkFailure(w, r, err) |
| 55 | return |
| 56 | } |
| 57 | setHomeCookie(w, homeInitCookie, secret, 300) |
| 58 | setHomeCookie(w, homeProofCookie, "", -1) |
| 59 | http.Redirect(w, r, "/auth/start?return_to=%2Faccount%2Fhome%2Fconfirm", http.StatusSeeOther) |
| 60 | } |
| 61 | func (b *Bridge) ConfirmPage(w http.ResponseWriter, r *http.Request) { |
| 62 | if !b.guard(w, r, http.MethodGet, "/account/home/confirm") { |
| 63 | return |
| 64 | } |
| 65 | secret, present, ok := homeCookie(r, homeProofCookie) |
| 66 | if !ok || !present { |
| 67 | b.fail(w, r, http.StatusBadRequest) |
| 68 | return |
| 69 | } |
| 70 | local, person, err := b.localBinding(r) |
| 71 | if err != nil { |
| 72 | b.fail(w, r, http.StatusForbidden) |
| 73 | return |
| 74 | } |
| 75 | if _, err := b.links.Pending(r.Context(), secret, local, b.now()); err != nil { |
| 76 | if errors.Is(err, linkstore.ErrRefused) { |
| 77 | setHomeCookie(w, homeProofCookie, "", -1) |
| 78 | } |
| 79 | b.linkFailure(w, r, err) |
| 80 | return |
| 81 | } |
| 82 | b.render(w, r, "confirm", person.Label, http.StatusOK) |
| 83 | } |
| 84 | func (b *Bridge) ConfirmPost(w http.ResponseWriter, r *http.Request) { |
| 85 | if !b.guard(w, r, http.MethodPost, "/account/home/confirm") { |
| 86 | return |
| 87 | } |
| 88 | secret, present, ok := homeCookie(r, homeProofCookie) |
| 89 | if !ok || !present { |
| 90 | b.fail(w, r, http.StatusBadRequest) |
| 91 | return |
| 92 | } |
| 93 | local, _, err := b.localBinding(r) |
| 94 | if err != nil { |
| 95 | b.fail(w, r, http.StatusForbidden) |
| 96 | return |
| 97 | } |
| 98 | pending, err := b.links.Confirm(r.Context(), secret, local, b.now()) |
| 99 | if err == nil || errors.Is(err, linkstore.ErrRefused) { |
| 100 | setHomeCookie(w, homeProofCookie, "", -1) |
| 101 | } |
| 102 | if err != nil { |
| 103 | b.linkFailure(w, r, err) |
| 104 | return |
| 105 | } |
| 106 | http.Redirect(w, r, pending.ReturnPath, http.StatusSeeOther) |
| 107 | } |
| 108 | func (b *Bridge) linkFailure(w http.ResponseWriter, r *http.Request, err error) { |
| 109 | status := http.StatusServiceUnavailable |
| 110 | if errors.Is(err, linkstore.ErrRefused) { |
| 111 | status = http.StatusForbidden |
| 112 | } |
| 113 | b.fail(w, r, status) |
| 114 | } |
| 115 | |
amadan