username.html

<script>
    const Misc = kiwi.require('helpers/Misc');

    function randString(n) {
        let text = '';
        const possible = 'abcdefghijklmnopqrstuvwxyz0123456789';
        for (let i = 0; i < n; i++) {
            text += possible.charAt(Math.floor(Math.random() * possible.length));
        }
        return text;
    }

    /*
        Ident IRC : 11 chars — [source][browser][os][8 random]

        Source  : c = chat-fr, e = europnet, a = andromede, f = fantasya, l = 123love,
                  v = loovchat, o = other, m = Mikochat, x = xchat-fr, z = mobile app,
                  d = direct (direct access without origin nor chatnow)
        Browser : c = Chrome, f = Firefox, s = Safari, e = Edge, b = Brave,
                  i = Internet Explorer, p = Opera, o = other
        OS      : w = Windows, m = MacOS, l = Linux, a = Android, i = iOS, o = other
     */

    function getSource() {
        if (Misc.queryStringVal('origine') !== undefined) {
            const origin = Misc.queryStringVal('origine');
            // List of EuropNet's source prefixes
            const prefixes = {'3': 'c', '4': 'e', '5': 'f', '6': 'a', '7': 'c', '8': 'e', '9': 'e', '10': 'l',
                '11': 'l', '12': 'l', '13': 'l', '14': 'v', '15': 'm', '16': 'x', '17': 'z'};
            if (origin !== '' && prefixes[origin] !== undefined) return prefixes[origin];
        }
        if (Misc.queryStringVal('chatnow') === '1') return 'o';
        return 'd';
    }

    function getBrowser() {
        const ua = navigator.userAgent;
        if (/OPR\/|Opera/.test(ua))    return 'p';  // Opera (OPR/ = modern, Opera = legacy)
        if (/Edg/.test(ua))            return 'e';  // Edge : Edge/, Edg/, EdgA/, EdgiOS/
        if (navigator.brave)           return 'b';  // Brave: UA is identical to Chrome, only reliable detection
        if (/Chrome|CriOS/.test(ua))   return 'c';  // Chrome desktop + Chrome iOS (CriOS)
        if (/Firefox|FxiOS/.test(ua))  return 'f';  // Firefox desktop + Firefox iOS (FxiOS)
        if (/Trident\/|MSIE/.test(ua)) return 'i';  // IE11 (Trident/) + IE≤10 (MSIE)
        if (/Safari/.test(ua))         return 's';
        return 'o';
    }

    function getOs() {
        const ua = navigator.userAgent;
        if (/Win/.test(ua))              return 'w';
        if (/Android/i.test(ua))         return 'a';  // before Linux: Android UAs contain "Linux"
        if (/iPad|iPhone|iPod/.test(ua)) return 'i';
        if (/Mac/.test(ua))              return 'm';
        if (/Linux/.test(ua))            return 'l';
        return 'o';
    }

    // Cookies
    function createCookie(name, value, days) {
        let expires = "";
        if (days) {
            const date = new Date();
            date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
            expires = "; expires=" + date.toGMTString();
        }
        document.cookie = name + "=" + value + expires + "; path=/; SameSite=Lax; Secure";
    }

    function readCookie(name) {
        const nameEQ = name + "=";
        const ca = document.cookie.split(';');
        for (let i = 0; i < ca.length; i++) {
            let c = ca[i];
            while (c.charAt(0) === ' ') c = c.substring(1, c.length);
            if (c.indexOf(nameEQ) === 0) return c.substring(nameEQ.length, c.length);
        }
        return null;
    }

    function eraseCookie(name) {
        createCookie(name, "", -1);
    }

    function getStoredIdent() {
        let ls = null;
        try {
            ls = window.localStorage.getItem('username');
        } catch(e) {}
        return ls || readCookie('username');
    }

    function syncToAllStorages(value) {
        try {
            window.localStorage.setItem('username', value);
        } catch(e) {}
        createCookie('username', value, 365);
    }

    function getUsername() {
        const stored = getStoredIdent();
        if (stored && stored.length === 11) {
            syncToAllStorages(stored);
            return stored;
        }
        const username = getSource() + getBrowser() + getOs() + randString(8);
        syncToAllStorages(username);
        return username;
    }

    kiwi.plugin('username', function(kiwi) {
        kiwi.state.$on('network.new', function(event) {
            event.network.username = getUsername();
        });
    });
</script>