tracker

4.7 KB

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. // tracker.worldapi.org#14: the search (components/search.hl) — a magnifier, drawn in SVG like the checks
39. a { id = "searchlink" class = "searchlink" href = "/search" title = "Search" "aria-label" = "Search"
40. svg { viewBox = "0 0 24 24" width = "22" height = "22" "aria-hidden" = "true"
41. circle { cx = "10.5" cy = "10.5" r = "6.5" }
42. path { d = "M15.5 15.5 L20.5 20.5" }
43. }
44. }
45. identSelector { id = "selector" key = selectorKey class = selectorClass }
46. if (loggedIn) {
47. button { id = "logout" type = "button" class = "quiet" "Log out" on click(e) { emit doLogout(e) } }
48. }
49. if (loggedOut) {
50. a { id = "loginbutton" class = "button" href = buttonHref "Log in with ident" }
51. }
52. input { id = "identcode" type = "hidden" on change(e) { emit gotCode(e) } }
53. }
54. }
55. if (hasLoginError) { p { id = "loginerror" class = "message banner" loginError } }
56. if (offline) { offlineNote { id = "offline" "You are offline. Your shows and lists need the network." } }
57. netProbe { "aria-hidden" = "true" on animationiteration(e) { emit netTick(e) } }
58. main { slot }
59. script { src = identScript }
60. script { src = "/login.js" }
61. }
62. }
64. showIn = () => {
65. loggedIn = true
66. loggedOut = false
67. selectorClass = 'in'
68. loginError = ''
69. hasLoginError = false
70. }
71. showOut = () => {
72. loggedIn = false
73. loggedOut = true
74. selectorClass = 'out'
75. }
77. // the selector's code (via /login.js and the hidden input) → the server exchanges it
78. on gotCode(e) {
79. let code = e.target.value
80. e.target.value = ''
81. if (code == null || code == '') { return null }
82. let r = emit server trackerLogin(code)
83. if (r == null || r.error != null) {
84. loginError = r != null ? r.error : 'the login failed'
85. hasLoginError = true
86. return null
87. }
88. showIn()
89. navigate('/')
90. }
92. on client trackerSignedIn(tag) {
93. showIn()
94. navigate('/')
95. }
96. on client trackerSignedOut(tag) {
97. showOut()
98. navigate('/')
99. }
101. on netTick(e) {
102. let down = window.navigator.onLine == false
103. if (down != offline) { offline = down }
104. }
106. on doLogout(e) {
107. emit server trackerLogOut()
108. showOut()
109. navigate('/')
110. }
112. // ---- the faces (the trailing `session` is always the server's: hybriel #16) ----
113. on server trackerLogin(code, session) {
114. if (session == null) { return { error = 'no session — reload the page' } }
115. let x = exchangeCode(code)
116. if (x.error != null) { return { error = x.error } }
117. let u = ensureUser(x.identity)
118. if (u == null) { return { error = 'could not store the user' } }
119. let tag = randomBytes(16)
120. session.user = { id = u.id }
121. session.data.tag = tag
122. emit client trackerSignedIn(tag)
123. return { ok = true }
124. }
126. on server trackerLogOut(session) {
127. if (session == null) { return { error = 'no session' } }
128. emit client trackerSignedOut(session.data.tag)
129. session.user = null
130. return { ok = true }
131. }