49 lines
1.2 KiB
TypeScript
49 lines
1.2 KiB
TypeScript
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/**
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* the site key for Google reCAPTCHA v3
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*/
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const SITE_KEY = '6Ldxtt8UAAAAALvcRqWTlVOVIB7MmEWwN-zw_9fM'
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type token = string;
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interface GRecaptcha {
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ready (cb: Function): void;
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execute (siteKey: string, opts: { action: string }): Promise<token>;
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}
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let gr: GRecaptcha | Promise<GRecaptcha>
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/**
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* load reCAPTCHA
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*/
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const load = (): Promise<GRecaptcha> => {
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// load script
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const script = document.createElement('script')
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script.src = `https://www.recaptcha.net/recaptcha/api.js?render=${SITE_KEY}`
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script.async = true
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document.body.appendChild(script)
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// add css
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const style = document.createElement('style')
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style.innerHTML = '.grecaptcha-badge { display: none !important; }'
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document.head.appendChild(style)
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return new Promise((resolve) => {
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script.onload = (): void => {
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const grecaptcha: GRecaptcha = window['grecaptcha']
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grecaptcha.ready(() => resolve(grecaptcha))
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}
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})
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}
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export const init = (): GRecaptcha | Promise<GRecaptcha> => {
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if (!gr) {
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gr = load()
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}
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return gr
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}
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export const execute = async (): Promise<token> => {
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const captcha = await init()
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return captcha.execute(SITE_KEY, { action: 'downloadmscz' })
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}
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