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optimize ts code for minimization

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overflowerror 2024-08-17 00:50:37 +02:00
parent b179c03730
commit 9349a97fbc
1 changed files with 42 additions and 29 deletions
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71
src/main.ts
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@ -13,36 +13,47 @@ const DATA_SUCCESS_CALLBACK = "data-success-callback";
const DATA_INPUT_SELECTOR = "data-input-selector";
const DATA_TEXT = "data-text";
const DEFAULT_TEXT = "I am not a robot";
const _document = document; // for optimization
const classList = "classList"; // for optimization
const querySelectorAll = "querySelectorAll"; // for optimization
const createElement = "createElement"; // for optimization
const getAttribute = "getAttribute"; // for optimization
const findHashWithPrefix = async (algo: string, hashPrefixBits: number, inputPrefix: string): Promise<string> => {
const hashPrefix = new Uint8Array(Array(Math.ceil(hashPrefixBits / 8)).map(_ => 0));
let iteration = 0;
let message: string;
let hash: Uint8Array;
do {
var message = inputPrefix + (iteration++).toString(36);
var hash = await digest(algo, message);
message = inputPrefix + (iteration++).toString(36);
hash = await digest(algo, message);
} while (!hash.hasPrefix(hashPrefix, hashPrefixBits));
return message;
}
function initCaptchaContentAndGetCheckbox(captcha: Element): Element {
const initCaptchaContentAndGetCheckbox = (captcha: Element): Element => {
const checkbox = _document[createElement]("div");
const text = _document[createElement]("span");
checkbox[classList].add(CLASS_CHECKBOX, CLASS_LOADING);
text.innerText = captcha[getAttribute](DATA_TEXT) || DEFAULT_TEXT;
captcha.textContent = ""; // clear node
const checkbox = document.createElement("div");
checkbox.classList.add(CLASS_CHECKBOX, CLASS_LOADING);
const text = document.createElement("span");
text.innerText = captcha.getAttribute(DATA_TEXT) || "I am not a robot";
captcha.append(checkbox, text);
return checkbox;
}
const toggleChecked = (checkbox: Element) =>
checkbox.classList.toggle(CLASS_CHECKED);
checkbox[classList].toggle(CLASS_CHECKED);
const toggleLoading = (checkbox: Element) =>
checkbox.classList.toggle(CLASS_LOADING);
checkbox[classList].toggle(CLASS_LOADING);
const executeChallenge = async (challenge: Challenge, challengeCompletedCallback: (response: string) => void): Promise<void> => {
challengeCompletedCallback(await findHashWithPrefix(challenge.algo, challenge.prefixBits, challenge.input));
@ -57,41 +68,43 @@ const prepareInputCaptcha = (captcha: Element, challengeCompletedCallback: (resp
return async (challenge: Challenge) => {
checkbox.addEventListener("click", async function() {
if (this.classList.contains(CLASS_LOADING) || this.classList.contains(CLASS_CHECKED)) {
const _this = this; // for optimization
if (_this[classList].contains(CLASS_LOADING) || _this[classList].contains(CLASS_CHECKED)) {
return;
}
toggleLoading(this);
toggleLoading(_this);
await executeChallenge(challenge, challengeCompletedCallback);
toggleLoading(this);
toggleChecked(this);
toggleLoading(_this);
toggleChecked(_this);
});
toggleLoading(checkbox);
}
}
const prepareCaptcha = async (captcha: Element) => {
const challengeUrl = captcha.getAttribute(DATA_CHALLENGE_URL);
const successCallback = captcha.getAttribute(DATA_SUCCESS_CALLBACK);
const inputSelector = captcha.getAttribute(DATA_INPUT_SELECTOR);
if (!challengeUrl) {
throw "No challenge URL found.";
}
const challengeUrl = captcha[getAttribute](DATA_CHALLENGE_URL);
const successCallback = captcha[getAttribute](DATA_SUCCESS_CALLBACK);
const inputSelector = captcha[getAttribute](DATA_INPUT_SELECTOR);
const setInputValue = (response: string) => {
if (inputSelector) [...document.querySelectorAll(inputSelector)].forEach((input: HTMLInputElement) => input.value = response)
if (inputSelector) [..._document[querySelectorAll](inputSelector)].forEach((input: HTMLInputElement) => input.value = response)
}
// reset form input value
setInputValue("");
const challengeCompletesCallback = (response: string) => {
if (successCallback) [eval][0](successCallback)(response);
setInputValue(response);
};
const initDoneCallback = (captcha.classList.contains(CLASS_SILENT)
if (!challengeUrl) {
throw "No challenge";
}
// reset form input value
setInputValue("");
const initDoneCallback = (captcha[classList].contains(CLASS_SILENT)
? prepareSilentCaptcha
: prepareInputCaptcha)
(captcha, challengeCompletesCallback);
@ -100,14 +113,14 @@ const prepareCaptcha = async (captcha: Element) => {
const challenge = await challengeResponse.json() as Challenge;
if (!validateChallenge(challenge)) {
throw "Challenge is invalid.";
throw "Bad challenge";
}
await initDoneCallback(challenge);
}
window.addEventListener("load", () =>
[...document.getElementsByClassName("captcha")].forEach(prepareCaptcha)
[..._document[querySelectorAll](".captcha")].forEach(prepareCaptcha)
);
declare global {