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umami/lib/auth.js

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import { parse } from 'cookie';
import { parseSecureToken, parseToken } from './crypto';
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import { AUTH_COOKIE_NAME, TOKEN_HEADER } from './constants';
import { getWebsiteById } from './queries';
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export async function getAuthToken(req) {
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const token = parse(req.headers.cookie || '')[AUTH_COOKIE_NAME];
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return parseSecureToken(token);
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}
export async function isValidToken(token, validation) {
try {
const result = await parseToken(token);
if (typeof validation === 'object') {
return !Object.keys(validation).find(key => result[key] !== validation[key]);
} else if (typeof validation === 'function') {
return validation(result);
}
} catch (e) {
return false;
}
return false;
}
export async function allowQuery(req, skipToken) {
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const { id } = req.query;
const token = req.headers[TOKEN_HEADER];
const websiteId = +id;
const website = await getWebsiteById(websiteId);
if (website) {
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if (token && token !== 'undefined' && !skipToken) {
return isValidToken(token, { website_id: websiteId });
}
const authToken = await getAuthToken(req);
if (authToken) {
const { user_id, is_admin } = authToken;
return is_admin || website.user_id === user_id;
}
}
return false;
}