homebox/frontend/composables/use-auth-context.ts

148 lines
3.7 KiB
TypeScript

import { CookieRef } from "nuxt/app";
import { PublicApi } from "~~/lib/api/public";
import { UserOut } from "~~/lib/api/types/data-contracts";
import { UserClient } from "~~/lib/api/user";
export interface IAuthContext {
get token(): string | null;
get expiresAt(): string | null;
get attachmentToken(): string | null;
/**
* The current user object for the session. This is undefined if the session is not authorized.
*/
user?: UserOut;
/**
* Returns true if the session is expired.
*/
isExpired(): boolean;
/**
* Returns true if the session is authorized.
*/
isAuthorized(): boolean;
/**
* Invalidates the session by removing the token and the expiresAt.
*/
invalidateSession(): void;
/**
* Logs out the user and calls the invalidateSession method.
*/
logout(api: UserClient): ReturnType<UserClient["user"]["logout"]>;
/**
* Logs in the user and sets the authorization context via cookies
*/
login(api: PublicApi, email: string, password: string, stayLoggedIn: boolean): ReturnType<PublicApi["login"]>;
}
class AuthContext implements IAuthContext {
// eslint-disable-next-line no-use-before-define
private static _instance?: AuthContext;
private static readonly cookieTokenKey = "hb.auth.token";
private static readonly cookieExpiresAtKey = "hb.auth.expires_at";
private static readonly cookieAttachmentTokenKey = "hb.auth.attachment_token";
user?: UserOut;
private _token: CookieRef<string | null>;
private _expiresAt: CookieRef<string | null>;
private _attachmentToken: CookieRef<string | null>;
get token() {
return this._token.value;
}
get expiresAt() {
return this._expiresAt.value;
}
get attachmentToken() {
return this._attachmentToken.value;
}
private constructor(token: string, expiresAt: string, attachmentToken: string) {
this._token = useCookie(token);
this._expiresAt = useCookie(expiresAt);
this._attachmentToken = useCookie(attachmentToken);
}
static get instance() {
if (!this._instance) {
this._instance = new AuthContext(
AuthContext.cookieTokenKey,
AuthContext.cookieExpiresAtKey,
AuthContext.cookieAttachmentTokenKey
);
}
return this._instance;
}
isExpired() {
const expiresAt = this.expiresAt;
if (expiresAt === null) {
return true;
}
const expiresAtDate = new Date(expiresAt);
const now = new Date();
return now.getTime() > expiresAtDate.getTime();
}
isAuthorized() {
return !!this._token.value && !this.isExpired();
}
invalidateSession() {
this.user = undefined;
// Delete the cookies
this._token.value = null;
this._expiresAt.value = null;
this._attachmentToken.value = null;
console.log("Session invalidated");
window.location.href = "/";
}
async login(api: PublicApi, email: string, password: string, stayLoggedIn: boolean) {
const r = await api.login(email, password, stayLoggedIn);
if (!r.error) {
const expiresAt = new Date(r.data.expiresAt);
this._token = useCookie(AuthContext.cookieTokenKey, {
expires: expiresAt,
});
this._expiresAt = useCookie(AuthContext.cookieExpiresAtKey, {
expires: expiresAt,
});
this._attachmentToken = useCookie(AuthContext.cookieAttachmentTokenKey, {
expires: expiresAt,
});
this._token.value = r.data.token;
this._expiresAt.value = r.data.expiresAt as string;
this._attachmentToken.value = r.data.attachmentToken;
}
return r;
}
async logout(api: UserClient) {
const r = await api.user.logout();
if (!r.error) {
this.invalidateSession();
}
return r;
}
}
export function useAuthContext(): IAuthContext {
return AuthContext.instance;
}