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/*
This file is part of GNU Taler
(C) 2022-2024 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Imports.
*/
import { base64FromArrayBuffer } from "../base64.js";
import { encodeCrock, getRandomBytes, stringToBytes } from "../taler-crypto.js";
import {
AccessToken,
LongPollParams,
PaginationParams,
} from "../types-taler-common.js";
/**
* Helper function to generate the "Authorization" HTTP header.
*/
export function makeBasicAuthHeader(
username: string,
password: string,
): string {
const auth = `${username}:${password}`;
const authEncoded: string = base64FromArrayBuffer(stringToBytes(auth));
return `Basic ${authEncoded}`;
}
/**
* rfc8959
* @param token
* @returns
*/
export function makeBearerTokenAuthHeader(token: AccessToken): string {
return `Bearer ${token}`;
}
export type BasicOrTokenAuth = BasicAuth | TokenAuth;
export type BasicAuth = {
type: "basic";
username: string;
password: string;
};
export type TokenAuth = {
type: "bearer";
token: AccessToken;
};
export function createAuthorizationHeader(auth?: BasicOrTokenAuth): string | undefined {
if (!auth) return undefined;
switch (auth.type) {
case "basic": {
return makeBasicAuthHeader(auth.username, auth.password);
}
case "bearer": {
return makeBearerTokenAuthHeader(auth.token);
}
}
return undefined;
}
/**
* https://bugs.gnunet.org/view.php?id=7949
*/
export function addPaginationParams(url: URL, pagination?: PaginationParams) {
if (!pagination) return;
if (pagination.offset) {
url.searchParams.set("offset", pagination.offset);
}
const order = !pagination || pagination.order === "asc" ? 1 : -1;
const limit =
!pagination || !pagination.limit || pagination.limit === 0
? 5
: Math.abs(pagination.limit);
//always send limit
url.searchParams.set("limit", String(order * limit));
}
export function addLongPollingParam(url: URL, param?: LongPollParams) {
if (!param) return;
if (param.timeoutMs) {
url.searchParams.set("timeout_ms", String(param.timeoutMs));
}
}
export interface CacheEvictor<T> {
notifySuccess: (op: T) => Promise<void>;
}
export const nullEvictor: CacheEvictor<unknown> = {
notifySuccess: () => Promise.resolve(),
};
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