tracker

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1. // project.hl — tracker.worldapi.org: STEP 1 (tracker.worldapi.org#1), an empty shell. Login copied unchanged from
2. // calendar.worldapi.org (rejected once for a centered sign-in and no header selector — architect, 2026-09-27):
3. // ident only, no own passwords (README "How apps use ident" of ident.worldapi.org), the identity selector in the
4. // header (components/main.hl). No shows, no data yet — later steps come from the creator (CONCEPT.md).
5. //
6. // the header's ident-selector / "Log in with ident" -> <ident>/login?key=&return=<this app>/login/callback
7. // /login/callback?ident_code=<code> the app's server exchanges the code for the identity's short id
8. // (POST <ident>/api/exchange) and signs this app's OWN session in
9. // (session.user = { id = <users @id> }, users.hl)
10. // the header's "Log out" button signs this app's session out via the face trackerLogOut (components/main.hl)
11. // — ident's own session, and the browser's ident cookie, are untouched
12. //
13. // Config (env; no committed secret — the first deploy registers this app in ident and sets these, done by the
14. // architect, as with ident's own .env for SMTP):
15. // TRACKER_PORT (45008), TRACKER_URL (this app's own public address, for the return URL),
16. // IDENT_URL (https://ident.worldapi.org), TRACKER_KEY (pk_…), TRACKER_SECRET (sk_…)
17. import WebFramework from 'hl:web'
18. import { Response } from 'hl:http1'
19. import { randomBytes } from 'hl:crypto'
20. import { env } from 'hl:proc'
21. import { readBytes, exists } from 'hl:fs'
23. import Styles from './styles.hl'
24. import { exchangeCode, ensureUser } from './users.hl'
25. import Home from './components/home.hl'
26. import LoginFailed from './components/loginfailed.hl'
27. import Show from './components/show.hl'
28. import Unwatched from './components/unwatched.hl'
30. static appTitle = "tracker"
32. styles = Styles
34. port = env('TRACKER_PORT') != null ? toNumber(env('TRACKER_PORT')) : 45008
35. watching = env('TRACKER_WATCH') != '0'
36. // read by hl:web's own manifest config (WebFramework.hl `cfg.sessionDir`), not the constructor call below
37. sessionDir = env('TRACKER_SESSIONS') != null ? env('TRACKER_SESSIONS') : null
39. // ---- THE LOGIN BUTTON'S RETURN (ident README "How apps use ident"), copied from calendar.worldapi.org's project.hl
40. // BACK TO THE PAGE: /login.js puts `?next=` into the button's return URL at the click. Only a same-origin PATH
41. // goes (one `/`, URL-safe characters, ≤ 500). Anything else → `/`.
42. nextChars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._~/?&=%+,;@!$()*:'
43. safePath = (want) => {
44. if (want == null || hlTypeName(want) != 'String' || want == '' || want.length > 500) { return '/' }
45. if (want.slice(0, 1) != '/' || want.slice(0, 2) == '//' || want.slice(0, 7) == '/login/') { return '/' }
46. let i = 0
47. while (i < want.length) {
48. if (!nextChars.includes(want[i])) { return '/' }
49. i = i + 1
50. }
51. return want
52. }
54. // A FAILED LOGIN is a page (components/loginfailed.hl): the reason is parked in the session, then → /login/failed
55. failed = (req, why) => {
56. let s = req.session
57. let fresh = s == null
58. if (fresh) { s = server.sessions.mint() }
59. s.data.loginError = why
60. server.sessions.save(s)
61. let res = new Response('login failed: ' + why, { status = 302 headers = { 'Location' = '/login/failed' 'Cache-Control' = 'no-store' 'Content-Type' = 'text/plain; charset=utf-8' } })
62. if (fresh) { res.headers['Set-Cookie'] = server.sessions.cookieHeader(s.id) }
63. return res
64. }
66. // the function route gets the cookie's session as req.session (hybriel #11); none yet → minted here
67. loginCallback = (route, req) => {
68. if (req.method != 'GET') { return failed(req, 'GET only') }
69. let q = req.query != null ? req.query : {}
70. let code = q.ident_code
71. if (code == null || code == '') { return failed(req, 'ident sent no login code') }
72. let x = exchangeCode(code)
73. if (x.error != null) { return failed(req, x.error) }
74. let u = ensureUser(x.identity)
75. if (u == null) { return failed(req, 'could not store the user') }
76. let s = req.session
77. let fresh = s == null
78. if (fresh) { s = server.sessions.mint() }
79. s.user = { id = u.id }
80. s.data.tag = randomBytes(16)
81. s.data.loginError = null
82. server.sessions.save(s)
83. let res = new Response('logged in', { status = 302 headers = { 'Location' = safePath(q.next) 'Cache-Control' = 'no-store' 'Content-Type' = 'text/plain; charset=utf-8' } })
84. if (fresh) { res.headers['Set-Cookie'] = server.sessions.cookieHeader(s.id) }
85. return res
86. }
88. // ---- /posters/<name> (tracker.worldapi.org#4): a show's poster image, served dynamically from
89. // storage/mpackdb/posters/ (the poster's file name is the show's oldId + its migrated extension,
90. // shows.hl posterName) — falls back to a placeholder svg when the real file isn't there yet (the
91. // mongo export never included the actual poster bytes, see the report's `open`).
92. postersDir = (env('TRACKER_STORAGE') != null ? env('TRACKER_STORAGE') : './storage/mpackdb') + '/posters'
93. placeholderPoster = './assets/poster-placeholder.svg'
94. posterNameChars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_'
95. isSafePosterName = (name) => {
96. if (name == null || hlTypeName(name) != 'String' || name == '' || name.length > 100) { return false }
97. let i = 0
98. while (i < name.length) {
99. if (!posterNameChars.includes(name[i])) { return false }
100. i = i + 1
101. }
102. return true
103. }
104. endsWithStr = (s, suffix) => { return s.length >= suffix.length && s.slice(s.length - suffix.length) == suffix }
105. mimeOfPoster = (name) => {
106. if (endsWithStr(name, '.png')) { return 'image/png' }
107. if (endsWithStr(name, '.webp')) { return 'image/webp' }
108. if (endsWithStr(name, '.svg')) { return 'image/svg+xml' }
109. return 'image/jpeg'
110. }
111. posterRoute = (route, req) => {
112. let name = route.params != null ? route.params.name : null
113. if (!isSafePosterName(name)) { return new Response('bad poster name', { status = 400 headers = { 'Content-Type' = 'text/plain; charset=utf-8' } }) }
114. let path = postersDir + '/' + name
115. if (exists(path)) { return new Response(readBytes(path), { headers = { 'Content-Type' = mimeOfPoster(name) 'Cache-Control' = 'public, max-age=86400' } }) }
116. return new Response(readBytes(placeholderPoster), { headers = { 'Content-Type' = 'image/svg+xml' 'Cache-Control' = 'public, max-age=3600' } })
117. }
119. routes = [
120. { pattern = "/favicon.ico" direct = "" }
121. { pattern = "/login/callback" function = loginCallback }
122. { pattern = "/login/failed" component = LoginFailed }
123. { pattern = "/login.js" file = "./login.js" headers = { 'Cache-Control' = 'no-cache' } }
124. { pattern = "/posters/:name" function = posterRoute }
125. { pattern = "/shows/:slug" component = Show }
126. { pattern = "/unwatched" component = Unwatched }
127. { pattern = "/" component = Home }
128. ]
130. // WHO GETS THE PUSH: the login state reaches the tabs of one session (components/main.hl trackerSignedIn/Out).
131. tagOf = (session) => { return session != null && session.data != null ? session.data.tag : null }
132. audience = {
133. trackerSignedIn = (tag, session) => { return tag != null && tagOf(session) == tag }
134. trackerSignedOut = (tag, session) => { return tag != null && tagOf(session) == tag }
135. }
137. // cookies are per host, not per port: an own name keeps this app's session apart from
138. // ident's own (and from any other worldapi app sharing a dev host), see ident README "Design
139. // tokens" / hybriel#10 hybriel#17.
140. sessionCookie = 'trackersid'
141. server = new WebFramework(routes = routes, styles = styles, port = port, sessionCookie = sessionCookie, watchMode = watching)
143. on Error(e) { console.log('error absorbed: ' + e.message) }