const ENDPOINT = 'https://www.webkit.org';
const EXPIRATION_TIME = 1633000000;

const CLIENT_BASE64_KEY_1 = 'BA1Hxzyi1RUM1b5wjxsn7nGxAszw2u61m164i3MrAIxHF6YK5h4SDYic-dRuU_RCPCfA5aq9ojSwk5Y2EmClBPs';
const CLIENT_KEY_1 = new Uint8Array([4, 13, 71, 199, 60, 162, 213, 21, 12, 213, 190, 112, 143, 27, 39, 238, 113, 177, 2, 204, 240, 218, 238, 181, 155, 94, 184, 139, 115, 43, 0, 140, 71, 23, 166, 10, 230, 30, 18, 13, 136, 156, 249, 212, 110, 83, 244, 66, 60, 39, 192, 229, 170, 189, 162, 52, 176, 147, 150, 54, 18, 96, 165, 4, 251]).buffer;

const CLIENT_BASE64_KEY_2 = 'BCVxsr7N_eNgVRqvHtD0zTZsEc6-VV-JvLexhqUzORcxaOzi6-AYWXvTBHm4bjyPjs7Vd8pZGH6SRpkNtoIAiw4';
const CLIENT_KEY_2 = new Uint8Array([4, 37, 113, 178, 190, 205, 253, 227, 96, 85, 26, 175, 30, 208, 244, 205, 54, 108, 17, 206, 190, 85, 95, 137, 188, 183, 177, 134, 165, 51, 57, 23, 49, 104, 236, 226, 235, 224, 24, 89, 123, 211, 4, 121, 184, 110, 60, 143, 142, 206, 213, 119, 202, 89, 24, 126, 146, 70, 153, 13, 182, 130, 0, 139, 14]).buffer;

const BASE64_AUTH = 'BTBZMqHH6r4Tts7J_aSIgg';
const AUTH = new Uint8Array([5, 48, 89, 50, 161, 199, 234, 190, 19, 182, 206, 201, 253, 164, 136, 130]).buffer;

const INVALID_SERVER_KEY = new Uint8Array(new Array(65).fill(4)).buffer;
const INVALID_BASE64_SERVER_KEY = "BAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQ";

const VALID_BASE64_SERVER_KEY = "BA1Hxzyi1RUM1b5wjxsn7nGxAszw2u61m164i3MrAIxHF6YK5h4SDYic-dRuU_RCPCfA5aq9ojSwk5Y2EmClBPs";
const VALID_SERVER_KEY = new Uint8Array([4, 13, 71, 199, 60, 162, 213, 21, 12, 213, 190, 112, 143, 27, 39, 238, 113, 177, 2, 204, 240, 218, 238, 181, 155, 94, 184, 139, 115, 43, 0, 140, 71, 23, 166, 10, 230, 30, 18, 13, 136, 156, 249, 212, 110, 83, 244, 66, 60, 39, 192, 229, 170, 189, 162, 52, 176, 147, 150, 54, 18, 96, 165, 4, 251]).buffer;

function bytesFrom(buf) {
    return Array.from(new Uint8Array(buf));
}