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web/js: show more errors when some probable error cases happen (#151)

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Closes #150

This should hopefully make Anubis more self-describing when errors do
happen so users can self-service.
This commit is contained in:
Xe Iaso 2025-03-28 15:47:18 -04:00 • committed by GitHub
parent 937f1dd330
commit 6b2ae30bae
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7 changed files with 103 additions and 38 deletions
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108
web/js/main.mjs
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@ -5,7 +5,7 @@ import { testVideo } from "./video.mjs";
const algorithms = {
"fast": processFast,
"slow": processSlow,
}
};
// from Xeact
const u = (url = "", params = {}) => {
@ -20,6 +20,19 @@ const u = (url = "", params = {}) => {
const imageURL = (mood, cacheBuster) =>
u(`/.within.website/x/cmd/anubis/static/img/${mood}.webp`, { cacheBuster });
const dependencies = [
{
name: "WebCrypto",
msg: "Your browser doesn't have a functioning web.crypto element. Are you viewing this over a secure context?",
value: window.crypto,
},
{
name: "Web Workers",
msg: "Your browser doesn't support web workers (Anubis uses this to avoid freezing your browser). Do you have a plugin like JShelter installed?",
value: window.Worker,
},
];
(async () => {
const status = document.getElementById('status');
const image = document.getElementById('image');
@ -27,6 +40,25 @@ const imageURL = (mood, cacheBuster) =>
const spinner = document.getElementById('spinner');
const anubisVersion = JSON.parse(document.getElementById('anubis_version').textContent);
const ohNoes = ({
titleMsg, statusMsg, imageSrc,
}) => {
title.innerHTML = titleMsg;
status.innerHTML = statusMsg;
image.src = imageSrc;
spinner.innerHTML = "";
spinner.style.display = "none";
};
if (!window.isSecureContext) {
ohNoes({
titleMsg: "Your context is not secure!",
statusMsg: `Try connecting over HTTPS or let the admin know to set up HTTPS. For more information, see <a href="https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts#when_is_a_context_considered_secure">MDN</a>.`,
imageSrc: imageURL("sad", anubisVersion),
});
return;
}
// const testarea = document.getElementById('testarea');
// const videoWorks = await testVideo(testarea);
@ -43,6 +75,17 @@ const imageURL = (mood, cacheBuster) =>
status.innerHTML = 'Calculating...';
for (const val of dependencies) {
const { value, name, msg } = val;
if (!value) {
ohNoes({
titleMsg: `Missing feature ${name}`,
statusMsg: msg,
imageSrc: imageURL("sad", anubisVersion),
})
}
}
const { challenge, rules } = await fetch("/.within.website/x/cmd/anubis/api/make-challenge", { method: "POST" })
.then(r => {
if (!r.ok) {
@ -51,39 +94,56 @@ const imageURL = (mood, cacheBuster) =>
return r.json();
})
.catch(err => {
title.innerHTML = "Oh no!";
status.innerHTML = `Failed to fetch config: ${err.message}`;
image.src = imageURL("sad", anubisVersion);
spinner.innerHTML = "";
spinner.style.display = "none";
ohNoes({
titleMsg: "Internal error!",
statusMsg: `Failed to fetch challenge config: ${err.message}`,
imageSrc: imageURL("sad", anubisVersion),
});
throw err;
});
const process = algorithms[rules.algorithm];
if (!process) {
title.innerHTML = "Oh no!";
status.innerHTML = `Failed to resolve check algorithm. You may want to reload the page.`;
image.src = imageURL("sad", anubisVersion);
spinner.innerHTML = "";
spinner.style.display = "none";
ohNoes({
titleMsg: "Challenge error!",
statusMsg: `Failed to resolve check algorithm. You may want to reload the page.`,
imageSrc: imageURL("sad", anubisVersion),
});
return;
}
status.innerHTML = `Calculating...<br/>Difficulty: ${rules.report_as}`;
spinner.style.display = "block";
const t0 = Date.now();
const { hash, nonce } = await process(challenge, rules.difficulty);
const t1 = Date.now();
console.log({ hash, nonce });
try {
const t0 = Date.now();
const { hash, nonce } = await process(challenge, rules.difficulty);
const t1 = Date.now();
console.log({ hash, nonce });
title.innerHTML = "Success!";
status.innerHTML = `Done! Took ${t1 - t0}ms, ${nonce} iterations`;
image.src = imageURL("happy", anubisVersion);
spinner.innerHTML = "";
spinner.style.display = "none";
title.innerHTML = "Success!";
status.innerHTML = `Done! Took ${t1 - t0}ms, ${nonce} iterations`;
image.src = imageURL("happy", anubisVersion);
spinner.innerHTML = "";
spinner.style.display = "none";
setTimeout(() => {
const redir = window.location.href;
window.location.href = u("/.within.website/x/cmd/anubis/api/pass-challenge", { response: hash, nonce, redir, elapsedTime: t1 - t0 });
}, 250);
setTimeout(() => {
const redir = window.location.href;
window.location.replace(
u("/.within.website/x/cmd/anubis/api/pass-challenge", {
response: hash,
nonce,
redir,
elapsedTime: t1 - t0
}),
);
}, 250);
} catch (err) {
ohNoes({
titleMsg: "Calculation error!",
statusMsg: `Failed to calculate challenge: ${err.message}`,
imageSrc: imageURL("sad", anubisVersion),
});
}
})();