44 lines
1.6 KiB
JavaScript
44 lines
1.6 KiB
JavaScript
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import {promisify} from 'node:util';
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import {execFile} from 'node:child_process';
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const execFileAsync = promisify(execFile);
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// Windows doesn't have browser IDs in the same way macOS/Linux does so we give fake
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// ones that look real and match the macOS/Linux versions for cross-platform apps.
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const windowsBrowserProgIds = {
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AppXq0fevzme2pys62n3e0fbqa7peapykr8v: {name: 'Edge', id: 'com.microsoft.edge.old'},
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MSEdgeDHTML: {name: 'Edge', id: 'com.microsoft.edge'}, // On macOS, it's "com.microsoft.edgemac"
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MSEdgeHTM: {name: 'Edge', id: 'com.microsoft.edge'}, // Newer Edge/Win10 releases
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'IE.HTTP': {name: 'Internet Explorer', id: 'com.microsoft.ie'},
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FirefoxURL: {name: 'Firefox', id: 'org.mozilla.firefox'},
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ChromeHTML: {name: 'Chrome', id: 'com.google.chrome'},
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BraveHTML: {name: 'Brave', id: 'com.brave.Browser'},
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BraveBHTML: {name: 'Brave Beta', id: 'com.brave.Browser.beta'},
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BraveSSHTM: {name: 'Brave Nightly', id: 'com.brave.Browser.nightly'},
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};
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export class UnknownBrowserError extends Error {}
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export default async function defaultBrowser(_execFileAsync = execFileAsync) {
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const {stdout} = await _execFileAsync('reg', [
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'QUERY',
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' HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\http\\UserChoice',
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'/v',
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'ProgId',
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]);
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const match = /ProgId\s*REG_SZ\s*(?<id>\S+)/.exec(stdout);
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if (!match) {
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throw new UnknownBrowserError(`Cannot find Windows browser in stdout: ${JSON.stringify(stdout)}`);
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}
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const {id} = match.groups;
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const browser = windowsBrowserProgIds[id];
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if (!browser) {
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throw new UnknownBrowserError(`Unknown browser ID: ${id}`);
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}
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return browser;
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}
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