User agents

use useragent.qweruse parse_user_agent, is_crawler from useragent      // Quillo 0.6: only these

woothee = "0.13"

// Who is visiting: browsers and crawlers.////   quillo run useragent.qwe      then open http://localhost:8080/meuse "useragent.qwer"route GET /me = parse_user_agent(request.headers["user-agent"] ?? "")route GET /samples = {    phone: parse_user_agent("Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1"),    bot: is_crawler("Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"),}

//! What a User-Agent header says: browser, version, system, device kind, and whether it is a crawler.//! version: 1.0.0//!//! [dependencies]//! woothee = "0.13"use serde_json::{json, Value};/// `{ browser, version, os, os_version, category, vendor }` for a User-Agent (category: "pc", "smartphone", "mobilephone", "crawler", "appliance", "misc"), or null when it is unknown.pub fn parse_user_agent(ua: &str) -> Option<Value> {    let r = woothee::parser::Parser::new().parse(ua)?;    Some(json!({        "browser": r.name, "version": r.version, "os": r.os, "os_version": r.os_version.to_string(),        "category": r.category, "vendor": r.vendor,    }))}/// Whether the User-Agent is a search engine's or another crawler's.pub fn is_crawler(ua: &str) -> bool {    woothee::is_crawler(ua)}