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link-util.ts
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link-util.ts
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import {shell} from "electron/common";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import {html} from "./html.js";
export async function openBrowser(url: URL): Promise<void> {
if (["http:", "https:", "mailto:"].includes(url.protocol)) {
await shell.openExternal(url.href);
} else {
// For security, indirect links to non-whitelisted protocols
// through a real web browser via a local HTML file.
const directory = fs.mkdtempSync(path.join(os.tmpdir(), "zulip-redirect-"));
const file = path.join(directory, "redirect.html");
fs.writeFileSync(
file,
html`
<!doctype html>
<html>
<head>
<meta charset="UTF-8" />
<meta http-equiv="Refresh" content="0; url=${url.href}" />
<title>Redirecting</title>
<style>
html {
font-family: menu, "Helvetica Neue", sans-serif;
}
</style>
</head>
<body>
<p>Opening <a href="${url.href}">${url.href}</a>…</p>
</body>
</html>
`.html,
);
await shell.openPath(file);
setTimeout(() => {
fs.unlinkSync(file);
fs.rmdirSync(directory);
}, 15_000);
}
}