87 lines
2.3 KiB
TypeScript
87 lines
2.3 KiB
TypeScript
/*
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* Copyright (C) Sapphirecode - All Rights Reserved
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* This file is part of Auth-Server-Helper which is released under MIT.
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* See file 'LICENSE' for full license details.
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* Created by Timo Hocker <timo@scode.ovh>, August 2022
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*/
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import { run_regex } from '@sapphirecode/utilities';
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import { debug } from './debug';
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const logger = debug ('cookies');
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type SameSiteValue = 'Lax' | 'None' | 'Strict';
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interface CookieSettings {
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name: string;
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secure?: boolean;
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http_only?: boolean;
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same_site?: SameSiteValue|null;
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expires?: string;
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max_age?: number;
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domain?: string;
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path?: string;
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}
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const default_settings: Omit<CookieSettings, 'name'> = {
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secure: true,
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http_only: true,
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same_site: 'Strict'
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};
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function build_cookie (
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settings: CookieSettings,
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value: string
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): string {
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const local_settings = { ...default_settings, ...settings };
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const sections = [ `${local_settings.name}=${value}` ];
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if (local_settings.secure)
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sections.push ('Secure');
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if (local_settings.http_only)
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sections.push ('HttpOnly');
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if (
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typeof local_settings.same_site !== 'undefined'
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&& local_settings.same_site !== null
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)
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sections.push (`SameSite=${local_settings.same_site}`);
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if (typeof local_settings.expires !== 'undefined')
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sections.push (`Expires=${local_settings.expires}`);
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if (typeof local_settings.max_age !== 'undefined')
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sections.push (`Max-Age=${local_settings.max_age}`);
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if (typeof local_settings.domain !== 'undefined')
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sections.push (`Domain=${local_settings.domain}`);
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if (typeof local_settings.path !== 'undefined')
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sections.push (`Path=${local_settings.path}`);
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return sections.join ('; ');
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}
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function extract_cookie (
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name: string|undefined,
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header: string|undefined
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): string| null {
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const log = logger.extend ('extract_cookie');
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log (`extracting cookie ${name}`);
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const cookie_regex = /(?:^|;)\s*(?<name>[^;=]+)=(?<value>[^;]+)/gu;
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let result = null;
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run_regex (
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cookie_regex,
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header,
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(res: RegExpMatchArray) => {
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log ('parsing cookie %s', res.groups?.name);
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if (res.groups?.name === name) {
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log ('found cookie');
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result = res.groups?.value as string;
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}
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}
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);
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return result;
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}
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export { build_cookie, extract_cookie, SameSiteValue, CookieSettings };
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