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add silent mode

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This commit is contained in:
overflowerror 2024-08-16 23:51:23 +02:00
parent b50df6c808
commit 3e046242b3
2 changed files with 34 additions and 15 deletions
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4
src/default-styles.css
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@ -8,6 +8,10 @@
font-family: sans-serif;
}
.captcha.silent {
display: none;
}
.captcha span {
position: relative;
top: -9px;

43
src/main.ts
View file

@ -6,6 +6,7 @@ import {Challenge, validateChallenge} from "./challenge";
const CLASS_CHECKBOX = "checkbox";
const CLASS_LOADING = "loading";
const CLASS_CHECKED = "checked";
const CLASS_SILENT = "silent";
const findHashWithPrefix = async (algo: string, hashPrefixBits: number, inputPrefix: string): Promise<string> => {
const hashPrefix = new Uint8Array(Array(Math.ceil(hashPrefixBits / 8)).map(_ => 0));
@ -37,14 +38,25 @@ const toggleChecked = (checkbox: Element) =>
const toggleLoading = (checkbox: Element) =>
checkbox.classList.toggle(CLASS_LOADING);
function prepareChallengeExecution(challenge: Challenge, callback: (response: string) => void): () => Promise<void> {
return async function() {
const executeChallenge = async (challenge: Challenge, challengeCompletedCallback: (response: string) => void): Promise<void> => {
challengeCompletedCallback(await findHashWithPrefix(challenge.algo, challenge.prefixBits, challenge.input));
}
const prepareSilentCaptcha = (_: Element, challengeCompletedCallback: (response: string) => void): (challenge: Challenge) => Promise<void> => {
return async (challenge: Challenge) => await executeChallenge(challenge, challengeCompletedCallback);
}
const prepareInputCaptcha = (captcha: Element, challengeCompletedCallback: (response: string) => void): (challenge: Challenge) => Promise<void> => {
const checkbox = initCaptchaContentAndGetCheckbox(captcha);
return async (challenge: Challenge) => {
checkbox.addEventListener("click", async function() {
toggleLoading(this);
callback(await findHashWithPrefix(challenge.algo, challenge.prefixBits, challenge.input));
await executeChallenge(challenge, challengeCompletedCallback);
toggleLoading(this);
toggleChecked(this);
});
toggleLoading(checkbox);
}
}
@ -54,10 +66,18 @@ const prepareCaptcha = async (captcha: Element) => {
throw "No challenge URL found.";
}
let successCallback = captcha.getAttribute("data-success-callback");
let inputSelector = captcha.getAttribute("data-input-selector");
const challengeCompletesCallback = (response: string) => {
const successCallback = captcha.getAttribute("data-success-callback");
const inputSelector = captcha.getAttribute("data-input-selector");
const checkbox = initCaptchaContentAndGetCheckbox(captcha);
if (successCallback) eval(successCallback)(response);
if (inputSelector) [...document.querySelectorAll(inputSelector)].forEach((input: HTMLInputElement) => input.value = response)
};
const initDoneCallback = (captcha.classList.contains(CLASS_SILENT)
? prepareSilentCaptcha
: prepareInputCaptcha)
(captcha, challengeCompletesCallback);
const challengeResponse = await fetch(challengeUrl);
const challenge = await challengeResponse.json() as Challenge;
@ -66,12 +86,7 @@ const prepareCaptcha = async (captcha: Element) => {
throw "Challenge is invalid.";
}
toggleLoading(checkbox);
checkbox.addEventListener("click", prepareChallengeExecution(challenge, response => {
if (successCallback) eval(successCallback)(response);
if (inputSelector) [...document.querySelectorAll(inputSelector)].forEach((input: HTMLInputElement) => input.value = response)
}));
await initDoneCallback(challenge);
}
window.addEventListener("load", () =>