Cookies.txt/cookies_txt/main.qml

import org.kde.falkon 1.0 as Falkon
import QtQuick.Controls 2.3
import QtQuick.Layouts 1.0
import QtQuick 2.3

Falkon.PluginInterface {

    init: function(state, settingsPath) {
    }

    testPlugin: function() {
        return true
    }

    unload: function() {
    }

    function findCurrentTab() {
        var window = Falkon.Windows.getCurrent()
        for (var i = 0; i < window.tabs.length; ++i) {
            if (window.tabs[i].current) {
                return window.tabs[i]
            }
        }
    }

    function currentDomain(url) {
        var result = url.match(/:\/\/(.[^/:#?]+)/)[1];
        return result
    }

    function escapeForPre(text) {
        return String(text).replace(/&/g, "&amp;")
                            .replace(/</g, "&lt;")
                            .replace(/>/g, "&gt;")
                            .replace(/"/g, "&quot;")
                            .replace(/'/g, "&#039;");
    }

    function exportCookies(onlyCurrentSite = false) {
        var currentTab = findCurrentTab()
        var cookies = Falkon.Cookies.getAll({})
        var domain = currentDomain(currentTab.url)
        var content = ""
        var downloadable = ""
        downloadable += "# Netscape HTTP Cookie File\n"
        downloadable += "# https://curl.haxx.se/rfc/cookie_spec.html\n"
        downloadable += "# This is a generated file! Do not edit.\n\n"

        for (var i = 0; i < cookies.length; ++i) {
            if (cookies[i].domain.indexOf(domain) != -1
                || cookies[i].domain.endsWith(domain)
                || domain.endsWith(cookies[i].domain)
                || !onlyCurrentSite
            ) {
                content += escapeForPre(cookies[i].domain);
                content += "\t";
                content += escapeForPre((!cookies[i].hostOnly).toString().toUpperCase());
                content += "\t";
                content += escapeForPre(cookies[i].path);
                content += "\t";
                content += escapeForPre(cookies[i].secure.toString().toUpperCase());
                content += "\t";
                content += escapeForPre(!cookies[i].session ? Math.round(cookies[i].expirationDate) : "0");
                content += "\t";
                content += escapeForPre(cookies[i].name);
                content += "\t";
                content += escapeForPre(cookies[i].value);
                content += "\n";
            }
        }

        currentTab.load("data:application/octet-stream;base64," + Qt.btoa(downloadable + content))
    }

    Falkon.BrowserAction {
        name: i18n('Cookies.txt')
        identity: 'cookies-txt-id'
        title: i18n('Cookies.txt')
        toolTip: i18n('Export Cookies')
        icon: "cookie.svg"
        location: Falkon.BrowserAction.NavigationToolBar | Falkon.BrowserAction.StatusBar

        popup: Pane {
            ColumnLayout {
                Button {
                    text: i18n("All")
                    hoverEnabled: true
                    onClicked: exportCookies();
                    Layout.fillWidth: true
                    Layout.alignment: Qt.AlignHCenter
                }
                Button {
                    text: i18n("Current Site")
                    hoverEnabled: true
                    onClicked: exportCookies(true);
                    Layout.fillWidth: true
                    Layout.alignment: Qt.AlignHCenter
                }
            }
        }
    }

}