@ayonli/jsext
Version:
A JavaScript extension package for building strong and modern applications.
233 lines (231 loc) • 8.3 kB
JavaScript
/**
* Parses the `User-Agent` header or the `navigator.userAgent` property.
*
* @example
* ```ts
* const ua = parseUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36");
* console.log(ua);
* // {
* // name: "Chrome",
* // version: "91.0.4472.124",
* // runtime: { identity: "chrome", version: "91.0.4472.124" },
* // platform: "windows",
* // mobile: false,
* // raw: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",
* // }
* ```
*/
function parseUserAgent(str) {
var _a, _b, _c, _d, _e;
if (!str)
throw new TypeError("The user agent string cannot be empty");
const ua = {
name: "",
version: undefined,
runtime: undefined,
platform: "unknown",
mobile: /Mobile/i.test(str),
raw: str,
};
let matches = [...str.matchAll(/(\S+)\/(\d+(\.\d+)*)(\s\((.+?)\))?/g)].map((match) => {
const [, name, version, , , extra] = match;
return { name: name, version: version, extra };
});
if (matches.length === 0 && str.length) {
ua.name = str;
if (/Cloudflare[-\s]Workers?/i.test(str)) {
ua.runtime = { identity: "workerd", version: undefined };
}
return ua;
}
const osInfo = (_a = matches.find(match => { var _a; return (_a = match.extra) === null || _a === void 0 ? void 0 : _a.includes(";"); })) === null || _a === void 0 ? void 0 : _a.extra;
if (osInfo) {
if (osInfo.includes("Macintosh") ||
osInfo.includes("iPhone") ||
osInfo.includes("iPad") ||
osInfo.includes("iPod")) {
ua.platform = "darwin";
}
else if (osInfo.includes("Windows")) {
ua.platform = "windows";
}
else if (osInfo.includes("Android")) {
ua.platform = "android";
}
else if (osInfo.includes("Linux")) {
ua.platform = "linux";
}
else if (osInfo.includes("FreeBSD")) {
ua.platform = "freebsd";
}
else if (osInfo.includes("OpenBSD")) {
ua.platform = "openbsd";
}
else if (osInfo.includes("NetBSD")) {
ua.platform = "netbsd";
}
else if (osInfo.includes("AIX")) {
ua.platform = "aix";
}
else if (osInfo.match(/SunOS|Solaris/)) {
ua.platform = "solaris";
}
}
let safari = matches.find(match => match.name === "Safari");
const chrome = matches.find(match => /Chrome|CriOS/i.test(match.name));
const firefox = matches.find(match => /Firefox|FxiOS/i.test(match.name));
const opera = matches.find(match => /Opera|OPR(iOS)?|OPT|OPR/i.test(match.name));
const edge = matches.find(match => /Edg(e|A|iOS)?/i.test(match.name));
const duckDuckGo = matches.find(match => /DuckDuckGo|Ddg(A|iOS)?/i.test(match.name));
const weChat = (_b = matches.find(match => /(Mac)?WeChat/i.test(match.name))) !== null && _b !== void 0 ? _b : matches.find(match => /MicroMessenger/i.test(match.name));
const dingTalk = str.match(/\b(DingTalk)\/(\d+(\.\d+)+)/);
let node;
let deno;
let bun;
if (ua.mobile && ua.platform === "darwin" && !safari && !chrome && !firefox) {
safari = matches.find(match => match.name === "AppleWebKit"); // fallback to WebKit
}
if (ua.mobile && ua.platform === "darwin" && safari) {
// In iOS and iPadOS, browsers are always Safari-based.
ua.runtime = { identity: "safari", version: safari.version };
if (opera) {
ua.name = "Opera";
ua.version = opera.version;
}
else if (edge) {
ua.name = "Edge";
ua.version = edge.version;
}
else if (chrome) {
ua.name = "Chrome";
ua.version = chrome.version;
}
else if (firefox) {
ua.name = "Firefox";
ua.version = firefox.version;
}
else if (duckDuckGo) {
ua.name = "DuckDuckGo";
ua.version = duckDuckGo.version;
}
else if (weChat) {
ua.name = "WeChat";
ua.version = weChat.version;
}
else if (dingTalk) {
ua.name = "DingTalk";
ua.version = dingTalk[2];
}
else {
const last = matches[matches.length - 1];
ua.name = last.name;
ua.version = last.version;
}
}
else if (safari && !chrome && !firefox) {
ua.runtime = { identity: "safari", version: safari.version };
if (duckDuckGo) {
ua.name = "DuckDuckGo";
ua.version = duckDuckGo.version;
}
else if (weChat) {
ua.name = "WeChat";
ua.version = weChat.version;
}
else if (dingTalk) {
ua.name = "DingTalk";
ua.version = dingTalk[2];
}
else {
const index = matches.findIndex(match => match === safari);
const next = (_c = matches[index + 1]) !== null && _c !== void 0 ? _c : matches[matches.length - 1];
ua.name = next.name;
ua.version = next.version;
}
}
else if (chrome && !firefox) {
ua.runtime = { identity: "chrome", version: chrome.version };
if (opera) {
ua.name = "Opera";
ua.version = opera.version;
}
else if (edge) {
ua.name = "Edge";
ua.version = edge.version;
}
else if (duckDuckGo) {
ua.name = "DuckDuckGo";
ua.version = duckDuckGo.version;
}
else if (weChat) {
ua.name = "WeChat";
ua.version = weChat.version;
}
else if (dingTalk) {
ua.name = "DingTalk";
ua.version = dingTalk[2];
}
else {
const index = matches.findIndex(match => match === chrome);
const next = (_d = matches[index + 1]) !== null && _d !== void 0 ? _d : matches[matches.length - 1];
if (next.name === "Safari") { // Chrome pretending to be Safari
ua.name = "Chrome";
ua.version = chrome.version;
}
else {
ua.name = next.name;
ua.version = next.version;
}
}
}
else if (firefox && !chrome) {
ua.runtime = { identity: "firefox", version: firefox.version };
const index = matches.findIndex(match => match === firefox);
const next = (_e = matches[index + 1]) !== null && _e !== void 0 ? _e : matches[matches.length - 1];
if (next.name === "Safari") { // Firefox pretending to be Safari
ua.name = "Firefox";
ua.version = firefox.version;
}
else {
ua.name = next.name;
ua.version = next.version;
}
}
else if (edge) { // Old Edge
ua.name = "Edge";
ua.version = edge.version;
ua.runtime = { identity: "unknown", version: edge.version };
}
else if (duckDuckGo) {
ua.name = "DuckDuckGo";
ua.version = duckDuckGo.version;
ua.runtime = { identity: "unknown", version: duckDuckGo.version };
}
else if (node = matches.find(match => match.name === "Node.js")) {
ua.name = "Node.js";
ua.version = node.version;
ua.runtime = { identity: "node", version: node.version };
}
else if (deno = matches.find(match => match.name === "Deno")) {
ua.name = "Deno";
ua.version = deno.version;
ua.runtime = { identity: "deno", version: deno.version };
}
else if (bun = matches.find(match => match.name === "Bun")) {
ua.name = "Bun";
ua.version = bun.version;
ua.runtime = { identity: "bun", version: bun.version };
}
else if (dingTalk) {
ua.name = "DingTalk";
ua.version = dingTalk[2];
}
else {
const last = matches[matches.length - 1];
ua.name = last.name;
ua.version = last.version;
}
return ua;
}
export { parseUserAgent };
//# sourceMappingURL=user-agent.js.map