tracker

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1. // components/main.hl — THE SHELL: the application header (brand; top right the login: ident's "Log in with
2. // ident" button or Log out) and the slot every page renders into. All CSS is in styles.hl. Copied from
3. // calendar.worldapi.org's components/main.hl unchanged in shape (tracker.worldapi.org#1, rejected once for
4. // centering the sign-in on the page instead of using the header selector).
5. // THE SELECTOR: `<ident-selector key=IDENT_API_KEY>` from <ident>/selector.js, as in calendar/gitoria. Choosing an
6. // identity fires `ident-login` (one-time code); /login.js hands it to the hidden input #identcode, whose `change`
7. // goes to the face trackerLogin (server-side exchange, no reload). The element's class is `in` / `out`; /login.js
8. // mirrors it into the selector's `loggedIn`.
9. // LOGIN: a plain link to <ident>/login?key=&return=<public url>/login/callback (project.hl loginCallback).
10. // After a login or logout in this tab the page is fetched again (navigate('/')).
11. import { navigate } from 'hl:web'
12. import { appTitle } from '../project.hl'
13. import { identKey, selectorScript, loginHref, userIdOfSession, exchangeCode, ensureUser } from '../users.hl'
14. import { randomBytes } from 'hl:crypto'
16. slot = null
17. session = null
19. loggedIn = userIdOfSession(session) != null
20. loggedOut = userIdOfSession(session) == null
21. buttonHref = loginHref
22. selectorClass = loggedIn ? 'in' : 'out'
23. selectorKey = identKey
24. identScript = selectorScript
25. loginError = ''
26. hasLoginError = false
27. // OFFLINE (tracker.worldapi.org#10): the service worker opens `/` from its cache without a network; the shell then
28. // says so. hl:web gives a page no connection state and no "mounted" hook, so a tick asks the browser: `netProbe` runs
29. // an endless 1 s CSS animation (styles.hl), and each `animationiteration` reads navigator.onLine — a write only when
30. // it changed. (An `img` error or a socket event would race the hydration and be missed.)
31. offline = false
33. View {
34. body {
35. applicationHeader {
36. a { class = "brand" href = "/" appTitle }
37. userBox { id = "userbox"
38. identSelector { id = "selector" key = selectorKey class = selectorClass }
39. if (loggedIn) {
40. button { id = "logout" type = "button" class = "quiet" "Log out" on click(e) { emit doLogout(e) } }
41. }
42. if (loggedOut) {
43. a { id = "loginbutton" class = "button" href = buttonHref "Log in with ident" }
44. }
45. input { id = "identcode" type = "hidden" on change(e) { emit gotCode(e) } }
46. }
47. }
48. if (hasLoginError) { p { id = "loginerror" class = "message banner" loginError } }
49. if (offline) { offlineNote { id = "offline" "You are offline. Your shows and lists need the network." } }
50. netProbe { "aria-hidden" = "true" on animationiteration(e) { emit netTick(e) } }
51. main { slot }
52. script { src = identScript }
53. script { src = "/login.js" }
54. }
55. }
57. showIn = () => {
58. loggedIn = true
59. loggedOut = false
60. selectorClass = 'in'
61. loginError = ''
62. hasLoginError = false
63. }
64. showOut = () => {
65. loggedIn = false
66. loggedOut = true
67. selectorClass = 'out'
68. }
70. // the selector's code (via /login.js and the hidden input) → the server exchanges it
71. on gotCode(e) {
72. let code = e.target.value
73. e.target.value = ''
74. if (code == null || code == '') { return null }
75. let r = emit server trackerLogin(code)
76. if (r == null || r.error != null) {
77. loginError = r != null ? r.error : 'the login failed'
78. hasLoginError = true
79. return null
80. }
81. showIn()
82. navigate('/')
83. }
85. on client trackerSignedIn(tag) {
86. showIn()
87. navigate('/')
88. }
89. on client trackerSignedOut(tag) {
90. showOut()
91. navigate('/')
92. }
94. on netTick(e) {
95. let down = window.navigator.onLine == false
96. if (down != offline) { offline = down }
97. }
99. on doLogout(e) {
100. emit server trackerLogOut()
101. showOut()
102. navigate('/')
103. }
105. // ---- the faces (the trailing `session` is always the server's: hybriel #16) ----
106. on server trackerLogin(code, session) {
107. if (session == null) { return { error = 'no session — reload the page' } }
108. let x = exchangeCode(code)
109. if (x.error != null) { return { error = x.error } }
110. let u = ensureUser(x.identity)
111. if (u == null) { return { error = 'could not store the user' } }
112. let tag = randomBytes(16)
113. session.user = { id = u.id }
114. session.data.tag = tag
115. emit client trackerSignedIn(tag)
116. return { ok = true }
117. }
119. on server trackerLogOut(session) {
120. if (session == null) { return { error = 'no session' } }
121. emit client trackerSignedOut(session.data.tag)
122. session.user = null
123. return { ok = true }
124. }