@lokalise/fastify-extras/dist/route-utils/authPreHandlers.js

Opinionated set of fastify plugins, commonly used in Lokalise

import { AuthFailedError } from '@lokalise/node-core';
const BEARER_PREFIX = 'Bearer ';
const BEARER_PREFIX_LENGTH = BEARER_PREFIX.length;
export function createStaticTokenAuthPreHandler(configuredSecretToken, loggerProvider, authHeaderName = 'authorization') {
    return function preHandlerStaticTokenAuth(req, _, done) {
        const logger = loggerProvider(req);
        const authHeaderValue = req.headers[authHeaderName];
        const authHeader = !!authHeaderValue && Array.isArray(authHeaderValue) ? authHeaderValue[0] : authHeaderValue;
        if (!authHeader?.startsWith(BEARER_PREFIX)) {
            logger.error('Token not present');
            return done(new AuthFailedError());
        }
        const token = authHeader.substring(BEARER_PREFIX_LENGTH, authHeader.length);
        if (token !== configuredSecretToken) {
            logger.error('Invalid token');
            return done(new AuthFailedError());
        }
        done();
    };
}
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