/*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License.
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*/
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import {
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ClientAuthErrorCodes,
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createClientAuthError,
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} from "@azure/msal-common/browser";
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import { IWindowStorage } from "./IWindowStorage.js";
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// Cookie life calculation (hours * minutes * seconds * ms)
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const COOKIE_LIFE_MULTIPLIER = 24 * 60 * 60 * 1000;
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export const SameSiteOptions = {
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Lax: "Lax",
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None: "None",
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} as const;
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export type SameSiteOptions =
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(typeof SameSiteOptions)[keyof typeof SameSiteOptions];
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export class CookieStorage implements IWindowStorage<string> {
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initialize(): Promise<void> {
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return Promise.resolve();
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}
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getItem(key: string): string | null {
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const name = `${encodeURIComponent(key)}`;
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const cookieList = document.cookie.split(";");
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for (let i = 0; i < cookieList.length; i++) {
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const cookie = cookieList[i];
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const [key, ...rest] = decodeURIComponent(cookie).trim().split("=");
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const value = rest.join("=");
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if (key === name) {
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return value;
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}
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}
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return "";
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}
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getUserData(): string | null {
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throw createClientAuthError(ClientAuthErrorCodes.methodNotImplemented);
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}
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setItem(
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key: string,
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value: string,
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cookieLifeDays?: number,
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secure: boolean = true,
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sameSite: SameSiteOptions = SameSiteOptions.Lax
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): void {
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let cookieStr = `${encodeURIComponent(key)}=${encodeURIComponent(
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value
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)};path=/;SameSite=${sameSite};`;
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if (cookieLifeDays) {
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const expireTime = getCookieExpirationTime(cookieLifeDays);
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cookieStr += `expires=${expireTime};`;
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}
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if (secure || sameSite === SameSiteOptions.None) {
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// SameSite None requires Secure flag
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cookieStr += "Secure;";
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}
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document.cookie = cookieStr;
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}
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async setUserData(): Promise<void> {
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return Promise.reject(
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createClientAuthError(ClientAuthErrorCodes.methodNotImplemented)
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);
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}
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removeItem(key: string): void {
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// Setting expiration to -1 removes it
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this.setItem(key, "", -1);
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}
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getKeys(): string[] {
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const cookieList = document.cookie.split(";");
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const keys: Array<string> = [];
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cookieList.forEach((cookie) => {
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const cookieParts = decodeURIComponent(cookie).trim().split("=");
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keys.push(cookieParts[0]);
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});
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return keys;
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}
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containsKey(key: string): boolean {
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return this.getKeys().includes(key);
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}
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decryptData(): Promise<object | null> {
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// Cookie storage does not support encryption, so this method is a no-op
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return Promise.resolve(null);
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}
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}
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/**
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* Get cookie expiration time
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* @param cookieLifeDays
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*/
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export function getCookieExpirationTime(cookieLifeDays: number): string {
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const today = new Date();
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const expr = new Date(
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today.getTime() + cookieLifeDays * COOKIE_LIFE_MULTIPLIER
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);
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return expr.toUTCString();
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}
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