Files
2025-07-24 18:46:24 +02:00

263 lines
6.8 KiB
JavaScript

function parse(str, options) {
if (typeof str !== "string") {
throw new TypeError("argument str must be a string");
}
const obj = {};
const opt = options || {};
const dec = opt.decode || decode;
let index = 0;
while (index < str.length) {
const eqIdx = str.indexOf("=", index);
if (eqIdx === -1) {
break;
}
let endIdx = str.indexOf(";", index);
if (endIdx === -1) {
endIdx = str.length;
} else if (endIdx < eqIdx) {
index = str.lastIndexOf(";", eqIdx - 1) + 1;
continue;
}
const key = str.slice(index, eqIdx).trim();
if (opt?.filter && !opt?.filter(key)) {
index = endIdx + 1;
continue;
}
if (void 0 === obj[key]) {
let val = str.slice(eqIdx + 1, endIdx).trim();
if (val.codePointAt(0) === 34) {
val = val.slice(1, -1);
}
obj[key] = tryDecode(val, dec);
}
index = endIdx + 1;
}
return obj;
}
function decode(str) {
return str.includes("%") ? decodeURIComponent(str) : str;
}
function tryDecode(str, decode2) {
try {
return decode2(str);
} catch {
return str;
}
}
const fieldContentRegExp = /^[\u0009\u0020-\u007E\u0080-\u00FF]+$/;
function serialize(name, value, options) {
const opt = options || {};
const enc = opt.encode || encodeURIComponent;
if (typeof enc !== "function") {
throw new TypeError("option encode is invalid");
}
if (!fieldContentRegExp.test(name)) {
throw new TypeError("argument name is invalid");
}
const encodedValue = enc(value);
if (encodedValue && !fieldContentRegExp.test(encodedValue)) {
throw new TypeError("argument val is invalid");
}
let str = name + "=" + encodedValue;
if (void 0 !== opt.maxAge && opt.maxAge !== null) {
const maxAge = opt.maxAge - 0;
if (Number.isNaN(maxAge) || !Number.isFinite(maxAge)) {
throw new TypeError("option maxAge is invalid");
}
str += "; Max-Age=" + Math.floor(maxAge);
}
if (opt.domain) {
if (!fieldContentRegExp.test(opt.domain)) {
throw new TypeError("option domain is invalid");
}
str += "; Domain=" + opt.domain;
}
if (opt.path) {
if (!fieldContentRegExp.test(opt.path)) {
throw new TypeError("option path is invalid");
}
str += "; Path=" + opt.path;
}
if (opt.expires) {
if (!isDate(opt.expires) || Number.isNaN(opt.expires.valueOf())) {
throw new TypeError("option expires is invalid");
}
str += "; Expires=" + opt.expires.toUTCString();
}
if (opt.httpOnly) {
str += "; HttpOnly";
}
if (opt.secure) {
str += "; Secure";
}
if (opt.priority) {
const priority = typeof opt.priority === "string" ? opt.priority.toLowerCase() : opt.priority;
switch (priority) {
case "low": {
str += "; Priority=Low";
break;
}
case "medium": {
str += "; Priority=Medium";
break;
}
case "high": {
str += "; Priority=High";
break;
}
default: {
throw new TypeError("option priority is invalid");
}
}
}
if (opt.sameSite) {
const sameSite = typeof opt.sameSite === "string" ? opt.sameSite.toLowerCase() : opt.sameSite;
switch (sameSite) {
case true: {
str += "; SameSite=Strict";
break;
}
case "lax": {
str += "; SameSite=Lax";
break;
}
case "strict": {
str += "; SameSite=Strict";
break;
}
case "none": {
str += "; SameSite=None";
break;
}
default: {
throw new TypeError("option sameSite is invalid");
}
}
}
if (opt.partitioned) {
str += "; Partitioned";
}
return str;
}
function isDate(val) {
return Object.prototype.toString.call(val) === "[object Date]" || val instanceof Date;
}
function parseSetCookie(setCookieValue, options) {
const parts = (setCookieValue || "").split(";").filter((str) => typeof str === "string" && !!str.trim());
const nameValuePairStr = parts.shift() || "";
const parsed = _parseNameValuePair(nameValuePairStr);
const name = parsed.name;
let value = parsed.value;
try {
value = options?.decode === false ? value : (options?.decode || decodeURIComponent)(value);
} catch {
}
const cookie = {
name,
value
};
for (const part of parts) {
const sides = part.split("=");
const partKey = (sides.shift() || "").trimStart().toLowerCase();
const partValue = sides.join("=");
switch (partKey) {
case "expires": {
cookie.expires = new Date(partValue);
break;
}
case "max-age": {
cookie.maxAge = Number.parseInt(partValue, 10);
break;
}
case "secure": {
cookie.secure = true;
break;
}
case "httponly": {
cookie.httpOnly = true;
break;
}
case "samesite": {
cookie.sameSite = partValue;
break;
}
default: {
cookie[partKey] = partValue;
}
}
}
return cookie;
}
function _parseNameValuePair(nameValuePairStr) {
let name = "";
let value = "";
const nameValueArr = nameValuePairStr.split("=");
if (nameValueArr.length > 1) {
name = nameValueArr.shift();
value = nameValueArr.join("=");
} else {
value = nameValuePairStr;
}
return { name, value };
}
function splitSetCookieString(cookiesString) {
if (Array.isArray(cookiesString)) {
return cookiesString.flatMap((c) => splitSetCookieString(c));
}
if (typeof cookiesString !== "string") {
return [];
}
const cookiesStrings = [];
let pos = 0;
let start;
let ch;
let lastComma;
let nextStart;
let cookiesSeparatorFound;
const skipWhitespace = () => {
while (pos < cookiesString.length && /\s/.test(cookiesString.charAt(pos))) {
pos += 1;
}
return pos < cookiesString.length;
};
const notSpecialChar = () => {
ch = cookiesString.charAt(pos);
return ch !== "=" && ch !== ";" && ch !== ",";
};
while (pos < cookiesString.length) {
start = pos;
cookiesSeparatorFound = false;
while (skipWhitespace()) {
ch = cookiesString.charAt(pos);
if (ch === ",") {
lastComma = pos;
pos += 1;
skipWhitespace();
nextStart = pos;
while (pos < cookiesString.length && notSpecialChar()) {
pos += 1;
}
if (pos < cookiesString.length && cookiesString.charAt(pos) === "=") {
cookiesSeparatorFound = true;
pos = nextStart;
cookiesStrings.push(cookiesString.slice(start, lastComma));
start = pos;
} else {
pos = lastComma + 1;
}
} else {
pos += 1;
}
}
if (!cookiesSeparatorFound || pos >= cookiesString.length) {
cookiesStrings.push(cookiesString.slice(start, cookiesString.length));
}
}
return cookiesStrings;
}
export { parse, parseSetCookie, serialize, splitSetCookieString };