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feat(web): port PoW challenge page from vanilla JS to Preact

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Replace the imperative DOM manipulation in web/js/main.ts with a
declarative Preact component (web/js/main.tsx). The project already
uses Preact for the timed-delay challenge (lib/challenge/preact/),
so this aligns the PoW challenge with the existing codebase direction.

Convert web/js/main.ts to a Preact TSX component. The worker
orchestration layer (web/js/algorithms/fast.ts) stays untouched --
it is already cleanly separated and works via a Promise API.

web/js/main.ts -> web/js/main.tsx:
  - Phase-based state machine (loading -> computing -> reading/error)
    replaces scattered imperative DOM updates.
  - Worker lifecycle managed in useEffect; progress callback drives
    state setters for speed and progress percentage.
  - Speed updates remain throttled to 1 second intervals.
  - i18n functions (initTranslations, t(), loadTranslations) kept as
    module-level state -- no need for React context in a single-
    component app.
  - The <details> section stays in the templ file as server-rendered
    HTML; the Preact component tracks its toggle state via useRef.
  - Uses esbuild automatic JSX transform (--jsx=automatic
    --jsx-import-source=preact) instead of classic pragmas.

web/build.sh:
  - Add js/**/*.tsx to the glob so esbuild bundles TSX files.
  - Pass --jsx=automatic --jsx-import-source=preact for .tsx files.

web/tsconfig.json (new):
  - IDE-only config (noEmit) so TypeScript understands Preact JSX
    types for editor diagnostics and autocompletion.

lib/challenge/proofofwork/proofofwork.templ:
  - Replace individual DOM elements (img#image, p#status,
    div#progress) with a <div id="app"> Preact mount point
    containing server-rendered fallback (pensive image + loading
    text).
  - Keep <details>, <noscript>, and <div id="testarea"> outside the
    Preact tree as server-rendered content.

lib/anubis.go:
  - Add challenge method to the "new challenge issued" log line.

docs/docs/CHANGELOG.md:
  - Add entry for the Preact rewrite.

  - web/js/algorithms/fast.ts -- untouched
  - web/js/algorithms/index.ts -- untouched
  - web/js/worker/sha256-*.ts -- untouched
  - Server-side Go code (proofofwork.go) -- untouched
  - JSON script data embedding -- untouched
  - Redirect URL construction -- same logic, same parameters
  - Progress bar CSS in web/index.templ -- untouched

Signed-off-by: Xe Iaso <me@xeiaso.net>
Assisted-by: Claude Opus 4.6 via Claude Code
Signed-off-by: Xe Iaso <me@xeiaso.net>
This commit is contained in:
Xe Iaso
2026-03-19 13:39:09 +00:00
parent dbd64e0f4f
commit b54f88939d
8 changed files with 391 additions and 306 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lib/challenge/proofofwork/proofofwork_templ.go generated
View File

@@ -34,27 +34,27 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
templ_7745c5c3_Var1 = templ.NopComponent
}
ctx = templ.ClearChildren(ctx)
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"centered-div\"><img id=\"image\" style=\"width:100%;max-width:256px;\" src=\"")
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"centered-div\"><img style=\"display:none;\" style=\"width:100%;max-width:256px;\" src=\"")
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
var templ_7745c5c3_Var2 string
templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 10, Col: 165}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 10, Col: 174}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "\"> <img style=\"display:none;\" style=\"width:100%;max-width:256px;\" src=\"")
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "\"><div id=\"app\"><img style=\"width:100%;max-width:256px;\" src=\"")
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
var templ_7745c5c3_Var3 string
templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 11, Col: 174}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 12, Col: 155}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
if templ_7745c5c3_Err != nil {
@@ -67,26 +67,26 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var4 string
templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("loading"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 12, Col: 41}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 13, Col: 42}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "</p><script async type=\"module\" src=\"")
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "</p></div><script async type=\"module\" src=\"")
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
var templ_7745c5c3_Var5 string
templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version)
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 13, Col: 136}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 15, Col: 136}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, "\"></script><div id=\"progress\" role=\"progressbar\" aria-labelledby=\"status\"><div class=\"bar-inner\"></div></div><details>")
templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, "\"></script><details>")
if templ_7745c5c3_Err != nil {
return templ_7745c5c3_Err
}
@@ -98,7 +98,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var6 string
templ_7745c5c3_Var6, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("simplified_explanation"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 20, Col: 44}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 19, Col: 44}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var6))
if templ_7745c5c3_Err != nil {
@@ -116,7 +116,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var7 string
templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("ai_companies_explanation"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 24, Col: 46}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 23, Col: 46}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var7))
if templ_7745c5c3_Err != nil {
@@ -129,7 +129,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var8 string
templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("anubis_compromise"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 27, Col: 39}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 26, Col: 39}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
if templ_7745c5c3_Err != nil {
@@ -142,7 +142,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var9 string
templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("hack_purpose"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 30, Col: 34}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 29, Col: 34}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var9))
if templ_7745c5c3_Err != nil {
@@ -155,7 +155,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var10 string
templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("jshelter_note"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 33, Col: 35}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 32, Col: 35}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
if templ_7745c5c3_Err != nil {
@@ -173,7 +173,7 @@ func page(localizer *localization.SimpleLocalizer) templ.Component {
var templ_7745c5c3_Var11 string
templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("javascript_required"))
if templ_7745c5c3_Err != nil {
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 39, Col: 40}
return templ.Error{Err: templ_7745c5c3_Err, FileName: `proofofwork.templ`, Line: 38, Col: 40}
}
_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var11))
if templ_7745c5c3_Err != nil {