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OpenAsar/src/utils/securityUtils.js

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const { shell } = require('electron');
const BLOCKED_URL_PROTOCOLS = ['file:', 'javascript:', 'vbscript:', 'data:', 'about:', 'chrome:', 'ms-cxh:', 'ms-cxh-full:', 'ms-word:']; // From Discord
const allowedProtocols = [ 'https:', 'http:' ];
exports.saferShellOpenExternal = (url) => {
let parsed;
try {
parsed = new URL(url);
} catch (_e) { return Promise.reject(); }
const protocol = parsed.protocol?.toLowerCase();
let disallowed = false;
if (oaConfig.ssoeAllowlist === false) { // Allow config option to use traditional Discord check for compatibility
if (!protocol || BLOCKED_URL_PROTOCOLS.includes(protocol)) disallowed = true;
} else {
if (!allowedProtocols.includes(protocol)) disallowed = true;
}
if (disallowed) return Promise.reject();
return shell.openExternal(url);
};
exports.checkUrlOriginMatches = (url1, url2) => {
let parse1, parse2;
try {
parse1 = new URL(url1);
parse2 = new URL(url2);
} catch (_e) { return Promise.reject(); }
return parse1.protocol === parse2.protocol && parse1.host === parse2.host;
};