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49 lines
1.8 KiB
JavaScript
49 lines
1.8 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.basicAuth = void 0;
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const buffer_1 = require("../../utils/buffer");
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const encode_1 = require("../../utils/encode");
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const CREDENTIALS_REGEXP = /^ *(?:[Bb][Aa][Ss][Ii][Cc]) +([A-Za-z0-9._~+/-]+=*) *$/;
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const USER_PASS_REGEXP = /^([^:]*):(.*)$/;
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const auth = (req) => {
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const match = CREDENTIALS_REGEXP.exec(req.headers.get('Authorization') || '');
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if (!match) {
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return undefined;
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}
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const userPass = USER_PASS_REGEXP.exec((0, encode_1.decodeBase64)(match[1]));
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if (!userPass) {
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return undefined;
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}
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return { username: userPass[1], password: userPass[2] };
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};
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const basicAuth = (options, ...users) => {
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if (!options) {
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throw new Error('basic auth middleware requires options for "username and password"');
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}
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if (!options.realm) {
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options.realm = 'Secure Area';
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}
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users.unshift({ username: options.username, password: options.password });
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return async (ctx, next) => {
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const requestUser = auth(ctx.req);
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if (requestUser) {
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for (const user of users) {
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const usernameEqual = await (0, buffer_1.timingSafeEqual)(user.username, requestUser.username, options.hashFunction);
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const passwordEqual = await (0, buffer_1.timingSafeEqual)(user.password, requestUser.password, options.hashFunction);
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if (usernameEqual && passwordEqual) {
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// Authorized OK
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await next();
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return;
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}
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}
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}
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ctx.res = new Response('Unauthorized', {
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status: 401,
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headers: {
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'WWW-Authenticate': 'Basic realm="' + options.realm?.replace(/"/g, '\\"') + '"',
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},
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});
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};
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};
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exports.basicAuth = basicAuth;
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