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Cookie.js
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export class Cookie {
#name;
#value;
#path = '/';
#domain;
#expires;
#sameSite = 'Lax';
#httpOnly = false;
#secure = false;
#partitioned = false;
/**
*
* @param {object} options
* @param {string} name
* @param {string} [value=""]
* @param {string} [path="/"]
* @param {string} [domain]
* @param {number|Date} [expires]
* @param {"strict"|"lax"|"none"} [sameSite="lax"]
* @param {boolean} [httpOnly=false]
* @param {boolean} [secure=false]
* @param {boolean} [partitioned=false]
*/
constructor({
name,
value = '',
path = '/',
domain,
expires,
sameSite = 'lax',
httpOnly = false,
secure = false,
partitioned = false,
}) {
this.name = name;
this.value = value;
if (typeof domain !== 'undefined') {
this.domain = domain;
}
if (typeof expires !== 'undefined') {
this.expires = expires;
}
if (typeof httpOnly !== 'undefined') {
this.httpOnly = httpOnly;
}
if (typeof partitioned !== 'undefined') {
this.partitioned = partitioned;
}
if (typeof path !== 'undefined') {
this.path = path;
}
if (typeof sameSite !== 'undefined') {
this.sameSite = sameSite;
}
if (typeof secure !== 'undefined') {
this.secure = secure;
}
}
get name() {
return this.#name;
}
set name(val) {
if (typeof val === 'string') {
this.#name = val;
} else {
throw new TypeError('Cookie name must be a string.');
}
}
get value() {
return this.#value;
}
set value(val) {
if (typeof val === 'string') {
this.#value = val;
} else {
switch(typeof val) {
case 'undefined':
this.#value = '';
break;
case 'number':
case 'bigint':
if (Number.isNaN(val)) {
this.#value = '';
} else {
this.#value = val.toString();
}
break;
case 'object':
if (val !== null) {
this.#value = val.toString();
} else {
this.#value = '';
}
break;
case 'boolean':
this.#value = val ? 'true' : 'false';
break;
default:
this.#value = val.toString();
}
}
}
get domain() {
return this.#domain;
}
set domain(val) {
if (val instanceof URL) {
this.#domain = val.hostname;
} else if (typeof val !== 'string' || val.length === '') {
throw new TypeError('Cookie domain must be a non-empty string.');
} else {
this.#domain = val;
}
}
get expires() {
if (this.#expires instanceof Date) {
return this.#expires.getTime();
} else {
return undefined;
}
}
set expires(val) {
switch (typeof val) {
case 'string':
this.expires = new Date(val).getTime();
break;
case 'number':
this.#expires = Number.isNaN(val) ? undefined : val;
break;
case 'object':
if (val === null) {
this.#expires = undefined;
} else if (! (val instanceof Date)) {
throw new TypeError('Invalid expires.');
} else {
this.#expires = val.getTime();
}
break;
case 'boolean':
if (val) {
this.#expires = new Date(0);
} else {
this.#expires = undefined;
}
}
}
get httpOnly() {
return this.#httpOnly;
}
set httpOnly(val) {
if (typeof val !== 'boolean') {
throw new TypeError('Cookie httpOnly must be a boolean.');
} else {
this.#httpOnly = val;
}
}
get partitioned() {
return this.#partitioned;
}
set partitioned(val) {
if (typeof val !== 'boolean') {
throw new TypeError('Cookie partitioned must be a boolean.');
} else {
this.#partitioned = val;
}
}
get path() {
return this.#path;
}
set path(val) {
if (val instanceof URL) {
this.#path = val.pathname;
} else if (typeof val === 'string' && val.length !== 0) {
this.#path = val;
} else {
throw new TypeError('Cookie path must be a non-empty string.');
}
}
get sameSite() {
return this.#sameSite;
}
set sameSite(val) {
if (typeof val !== 'string') {
throw new TypeError('Cookie SameSite must be a string.');
} else if (! ['lax', 'strict', 'none'].includes(val)) {
throw new TypeError('Cookie SameSite must be "none", "lax", or "strict".');
} else {
this.#sameSite = val;
}
}
get secure() {
return this.#secure;
}
set secure(val) {
if (typeof val !== 'boolean') {
throw new TypeError('Cookie secure must be a boolean.');
} else {
this.#secure = val;
}
}
toString() {
const parts = [`${this.#name}=${this.#value}`];
if (typeof this.#expires === 'number') {
parts.push(`Expires=${new Date(this.#expires).toUTCString()}`);
}
if (typeof this.#domain === 'string') {
parts.push(`Domain=${this.#domain}`);
}
if (typeof this.#path === 'string' && this.#path !== '/') {
parts.push(`Path=${this.#path}`);
}
if (typeof this.#sameSite === 'string') {
parts.push(`SameSite=${this.sameSite[0].toUpperCase()}${this.#sameSite.substring(1).toLowerCase()}`);
}
if (this.#httpOnly) {
parts.push('HttpOnly');
}
if (this.#secure) {
parts.push('Secure');
}
if (this.#partitioned) {
parts.push('Partitioned');
}
return parts.join('; ');
}
toJSON() {
return this.toString();
}
addToHeaders(headers) {
if (! (headers instanceof Headers)) {
throw new TypeError('Expected a Headers object.');
} else {
headers.append('Set-Cookie', this);
}
}
addToResponse(resp) {
if (resp instanceof Response) {
this.addToHeaders(resp.headers);
} else {
throw new TypeError('Not a Response object.');
}
}
}