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cmd/anubis: drastically optimize proof of work (#19)

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* cmd/anubis: drastically optimize proof of work

Closes #12
Closes #17

This drastically optimizes the proof of work check by removing the
stringify call at every iteration. Additionally, this optimizes the
checks by running them in parallel for as many threads as the browser
has available (according to navigator.hardwareConcurrency).

This also changes the redirect lag to 250 milliseconds instead of 2000
milliseconds in order to be perceptually faster. This is below the
reaction time threshold of many people, so this will make the post-check
success phase perceptually instant.

Testing on an iPhone 7 Plus has shown that this can clear a difficulty 4
check in 3.4 seconds.

This actually optimizes the check so much it may be a logistical concern
for operators.

* cmd/anubis/js: fix happy cachebuster logic

Signed-off-by: Xe Iaso <me@xeiaso.net>

---------

Signed-off-by: Xe Iaso <me@xeiaso.net>
This commit is contained in:
Xe Iaso 2025-03-20 09:26:39 -04:00 • committed by GitHub
parent c81e938f63
commit 52d7a3cd2b
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GPG key ID: B5690EEEBB952194
10 changed files with 166 additions and 113 deletions
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135
cmd/anubis/index.templ
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@ -1,19 +1,18 @@
package main
import (
"github.com/TecharoHQ/anubis"
"github.com/TecharoHQ/anubis/xess"
"github.com/TecharoHQ/anubis"
"github.com/TecharoHQ/anubis/xess"
)
templ base(title string, body templ.Component) {
<!DOCTYPE html>
<html>
<head>
<title>{ title }</title>
<link rel="stylesheet" href={ xess.URL } />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<style>
<!DOCTYPE html>
<html>
<head>
<title>{ title }</title>
<link rel="stylesheet" href={ xess.URL }/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<style>
body,
html {
height: 100%;
@ -139,60 +138,74 @@ templ base(title string, body templ.Component) {
transform: rotate(360deg);
}
}
</style>
</head>
<body id="top">
<main>
<center>
<h1 id="title" class=".centered-div">{ title }</h1>
</center>
@body
<footer>
<center>
<p>Protected by <a href="https://github.com/TecharoHQ/anubis">Anubis</a> from <a
href="https://techaro.lol">Techaro</a>.</p>
</center>
</footer>
</main>
</body>
</html>
</style>
@templ.JSONScript("anubis_version", anubis.Version)
</head>
<body id="top">
<main>
<center>
<h1 id="title" class=".centered-div">{ title }</h1>
</center>
@body
<footer>
<center>
<p>
Protected by <a href="https://github.com/TecharoHQ/anubis">Anubis</a> from <a
href="https://techaro.lol"
>Techaro</a>.
</p>
</center>
</footer>
</main>
</body>
</html>
}
templ index() {
<div class="centered-div">
<img id="image" width="256" src={ "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" +
anubis.Version } />
<img style="display:none;" width="256" src={ "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
anubis.Version } />
<p id="status">Loading...</p>
<script async type="module" src={ "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version
}></script>
<div id="spinner" class="lds-roller">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<noscript>
<p>Sadly, you must enable JavaScript to get past this challenge. This is required because AI companies have changed
the social contract around how website hosting works. A no-JS solution is a work-in-progress.</p>
</noscript>
<div id="testarea"></div>
</div>
<div class="centered-div">
<img
id="image"
width="256"
src={ "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" +
anubis.Version }
/>
<img
style="display:none;"
width="256"
src={ "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
anubis.Version }
/>
<p id="status">Loading...</p>
<script async type="module" src={ "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version }></script>
<div id="spinner" class="lds-roller">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<noscript>
<p>
Sadly, you must enable JavaScript to get past this challenge. This is required because AI companies have changed
the social contract around how website hosting works. A no-JS solution is a work-in-progress.
</p>
</noscript>
<div id="testarea"></div>
</div>
}
templ errorPage(message string) {
<div class="centered-div">
<img id="image" width="256" src={ "/.within.website/x/cmd/anubis/static/img/sad.webp?cacheBuster=" + anubis.Version
} />
<p>{ message }.</p>
<button onClick="window.location.reload();">Try again</button>
<p><a href="/">Go home</a></p>
</div>
}
<div class="centered-div">
<img
id="image"
width="256"
src={ "/.within.website/x/cmd/anubis/static/img/sad.webp?cacheBuster=" + anubis.Version }
/>
<p>{ message }.</p>
<button onClick="window.location.reload();">Try again</button>
<p><a href="/">Go home</a></p>
</div>
}