path: root/interface/js/app/rspamd.js

/*
 The MIT License (MIT)

 Copyright (C) 2012-2013 Anton Simonov <untone@gmail.com>
 Copyright (C) 2014-2017 Vsevolod Stakhov <vsevolod@highsecure.ru>

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */

/* global jQuery, FooTable, require, Visibility */

define(["jquery", "nprogress", "stickytabs", "visibility",
    "bootstrap", "fontawesome"],
function ($, NProgress) {
    "use strict";
    const ui = {
        chartLegend: [
            {label: "reject", color: "#FF0000"},
            {label: "soft reject", color: "#BF8040"},
            {label: "rewrite subject", color: "#FF6600"},
            {label: "add header", color: "#FFAD00"},
            {label: "greylist", color: "#436EEE"},
            {label: "no action", color: "#66CC00"}
        ],
        page_size: {
            scan: 25,
            errors: 25,
            history: 25
        },
        symbols: {
            scan: [],
            history: []
        }
    };

    const defaultAjaxTimeout = 20000;

    const ajaxTimeoutBox = ".popover #settings-popover #ajax-timeout";
    const graphs = {};
    const tables = {};
    let neighbours = []; // list of clusters
    let checked_server = "All SERVERS";
    const timer_id = [];
    let pageSizeTimerId = null;
    let pageSizeInvocationCounter = 0;
    let locale = (localStorage.getItem("selected_locale") === "custom") ? localStorage.getItem("custom_locale") : null;

    NProgress.configure({
        minimum: 0.01,
        showSpinner: false,
    });

    function ajaxSetup(ajax_timeout, setFieldValue, saveToLocalStorage) {
        const timeout = (ajax_timeout && ajax_timeout >= 0) ? ajax_timeout : defaultAjaxTimeout;
        if (saveToLocalStorage) localStorage.setItem("ajax_timeout", timeout);
        if (setFieldValue) $(ajaxTimeoutBox).val(timeout);

        $.ajaxSetup({
            timeout: timeout,
            jsonp: false
        });
    }

    function cleanCredentials() {
        sessionStorage.clear();
        $("#statWidgets").empty();
        $("#listMaps").empty();
        $("#modalBody").empty();
    }

    function stopTimers() {
        for (const key in timer_id) {
            if (!{}.hasOwnProperty.call(timer_id, key)) continue;
            Visibility.stop(timer_id[key]);
        }
    }

    function disconnect() {
        [graphs, tables].forEach(function (o) {
            Object.keys(o).forEach(function (key) {
                o[key].destroy();
                delete o[key];
            });
        });

        // Remove jquery-stickytabs listeners
        $(window).off("hashchange");
        $(".nav-tabs-sticky > .nav-item > .nav-link").off("click").removeClass("active");

        stopTimers();
        cleanCredentials();
        ui.connect();
    }

    // Get selectors' current state
    function getSelector(id) {
        const e = document.getElementById(id);
        return e.options[e.selectedIndex].value;
    }

    function tabClick(id) {
        let tab_id = id;
        if ($(id).attr("disabled")) return;
        let navBarControls = $("#selSrv, #navBar li, #navBar a, #navBar button");
        if (id !== "#autoRefresh") navBarControls.attr("disabled", true).addClass("disabled", true);

        stopTimers();

        if (id === "#refresh" || id === "#autoRefresh") {
            tab_id = "#" + $(".nav-link.active").attr("id");
        }

        $("#autoRefresh").hide();
        $("#refresh").addClass("radius-right");

        function setAutoRefresh(refreshInterval, timer, callback) {
            function countdown(interval) {
                Visibility.stop(timer_id.countdown);
                if (!interval) {
                    $("#countdown").text("--:--");
                    return;
                }

                let timeLeft = interval;
                $("#countdown").text("00:00");
                timer_id.countdown = Visibility.every(1000, 1000, function () {
                    timeLeft -= 1000;
                    $("#countdown").text(new Date(timeLeft).toISOString().substr(14, 5));
                    if (timeLeft <= 0) Visibility.stop(timer_id.countdown);
                });
            }

            $("#refresh").removeClass("radius-right");
            $("#autoRefresh").show();

            countdown(refreshInterval);
            if (!refreshInterval) return;
            timer_id[timer] = Visibility.every(refreshInterval, function () {
                countdown(refreshInterval);
                if ($("#refresh").attr("disabled")) return;
                $("#refresh").attr("disabled", true).addClass("disabled", true);
                callback();
            });
        }

        if (["#scan_nav", "#selectors_nav", "#disconnect"].indexOf(tab_id) !== -1) {
            $("#refresh").hide();
        } else {
            $("#refresh").show();
        }

        switch (tab_id) {
            case "#status_nav":
                require(["app/stats"], (module) => {
                    const refreshInterval = $(".dropdown-menu a.active.preset").data("value");
                    setAutoRefresh(refreshInterval, "status",
                        function () { return module.statWidgets(graphs, checked_server); });
                    if (id !== "#autoRefresh") module.statWidgets(graphs, checked_server);

                    $(".preset").show();
                    $(".history").hide();
                    $(".dynamic").hide();
                });
                break;
            case "#throughput_nav":
                require(["app/graph"], (module) => {
                    const selData = getSelector("selData"); // Graph's dataset selector state
                    const step = {
                        day: 60000,
                        week: 300000
                    };
                    let refreshInterval = step[selData] || 3600000;
                    $("#dynamic-item").text((refreshInterval / 60000) + " min");

                    if (!$(".dropdown-menu a.active.dynamic").data("value")) {
                        refreshInterval = null;
                    }
                    setAutoRefresh(refreshInterval, "throughput",
                        function () { return module.draw(graphs, neighbours, checked_server, selData); });
                    if (id !== "#autoRefresh") module.draw(graphs, neighbours, checked_server, selData);

                    $(".preset").hide();
                    $(".history").hide();
                    $(".dynamic").show();
                });
                break;
            case "#configuration_nav":
                require(["app/config"], (module) => {
                    module.getActions(checked_server);
                    module.getMaps(checked_server);
                });
                break;
            case "#symbols_nav":
                require(["app/symbols"], (module) => module.getSymbols(checked_server));
                break;
            case "#scan_nav":
                require(["app/upload"]);
                break;
            case "#selectors_nav":
                require(["app/selectors"], (module) => module.displayUI());
                break;
            case "#history_nav":
                require(["app/history"], (module) => {
                    function getHistoryAndErrors() {
                        module.getHistory();
                        module.getErrors();
                    }
                    const refreshInterval = $(".dropdown-menu a.active.history").data("value");
                    setAutoRefresh(refreshInterval, "history",
                        function () { return getHistoryAndErrors(); });
                    if (id !== "#autoRefresh") getHistoryAndErrors();

                    $(".preset").hide();
                    $(".history").show();
                    $(".dynamic").hide();
                });
                break;
            case "#disconnect":
                disconnect();
                break;
            default:
        }

        setTimeout(function () {
            // Do not enable Refresh button until AJAX requests to all neighbours are finished
            if (tab_id === "#history_nav") navBarControls = $(navBarControls).not("#refresh");

            navBarControls.removeAttr("disabled").removeClass("disabled");
        }, (id === "#autoRefresh") ? 0 : 1000);
    }

    function getPassword() {
        return sessionStorage.getItem("Password");
    }

    function get_compare_function(table) {
        const compare_functions = {
            magnitude: function (e1, e2) {
                return Math.abs(e2.score) - Math.abs(e1.score);
            },
            name: function (e1, e2) {
                return e1.name.localeCompare(e2.name);
            },
            score: function (e1, e2) {
                return e2.score - e1.score;
            }
        };

        return compare_functions[getSelector("selSymOrder_" + table)];
    }

    function saveCredentials(password) {
        sessionStorage.setItem("Password", password);
    }

    function set_page_size(table, page_size, changeTablePageSize) {
        const n = parseInt(page_size, 10); // HTML Input elements return string representing a number
        if (n > 0) {
            ui.page_size[table] = n;

            if (changeTablePageSize &&
                $("#historyTable_" + table + " tbody").is(":parent")) { // Table is not empty

                clearTimeout(pageSizeTimerId);
                const t = FooTable.get("#historyTable_" + table);
                if (t) {
                    pageSizeInvocationCounter = 0;
                    // Wait for input finish
                    pageSizeTimerId = setTimeout(() => t.pageSize(n), 1000);
                } else if (++pageSizeInvocationCounter < 10) {
                    // Wait for FooTable instance ready
                    pageSizeTimerId = setTimeout(() => set_page_size(table, n, true), 1000);
                }
            }
        }
    }

    function sort_symbols(o, compare_function) {
        return Object.keys(o)
            .map(function (key) {
                return o[key];
            })
            .sort(compare_function)
            .map(function (e) { return e.str; })
            .join("<br>\n");
    }

    function unix_time_format(tm) {
        const date = new Date(tm ? tm * 1000 : 0);
        return (locale)
            ? date.toLocaleString(locale)
            : date.toLocaleString();
    }

    function displayUI() {
        // In many browsers local storage can only store string.
        // So when we store the boolean true or false, it actually stores the strings "true" or "false".
        ui.read_only = sessionStorage.getItem("read_only") === "true";

        ui.query("auth", {
            success: function (neighbours_status) {
                $("#selSrv").empty();
                $("#selSrv").append($('<option value="All SERVERS">All SERVERS</option>'));
                neighbours_status.forEach(function (e) {
                    $("#selSrv").append($('<option value="' + e.name + '">' + e.name + "</option>"));
                    if (checked_server === e.name) {
                        $('#selSrv [value="' + e.name + '"]').prop("selected", true);
                    } else if (!e.status) {
                        $('#selSrv [value="' + e.name + '"]').prop("disabled", true);
                    }
                });
            },
            complete: function () {
                ajaxSetup(localStorage.getItem("ajax_timeout"));

                if (ui.read_only) {
                    $(".ro-disable").attr("disabled", true);
                    $(".ro-hide").hide();
                } else {
                    $(".ro-disable").removeAttr("disabled", true);
                    $(".ro-hide").show();
                }

                $("#preloader").addClass("d-none");
                $("#navBar, #mainUI").removeClass("d-none");
                $(".nav-tabs-sticky").stickyTabs({initialTab: "#status_nav"});
            },
            errorMessage: "Cannot get server status",
            server: "All SERVERS"
        });
    }

    function alertMessage(alertClass, alertText) {
        const a = $("<div class=\"alert " + alertClass + " alert-dismissible fade in show\">" +
                "<button type=\"button\" class=\"btn-close\" data-bs-dismiss=\"alert\" title=\"Dismiss\"></button>" +
                "<strong>" + alertText + "</strong>");
        $(".notification-area").append(a);

        setTimeout(function () {
            $(a).fadeTo(500, 0).slideUp(500, function () {
                $(this).alert("close");
            });
        }, 5000);
    }

    function queryServer(neighbours_status, ind, req_url, o) {
        neighbours_status[ind].checked = false;
        neighbours_status[ind].data = {};
        neighbours_status[ind].status = false;
        const req_params = {
            jsonp: false,
            data: o.data,
            headers: $.extend({Password: getPassword()}, o.headers),
            url: neighbours_status[ind].url + req_url,
            xhr: function () {
                const xhr = $.ajaxSettings.xhr();
                // Download progress
                if (req_url !== "neighbours") {
                    xhr.addEventListener("progress", function (e) {
                        if (e.lengthComputable) {
                            neighbours_status[ind].percentComplete = e.loaded / e.total;
                            const percentComplete = neighbours_status.reduce(function (prev, curr) {
                                return curr.percentComplete ? curr.percentComplete + prev : prev;
                            }, 0);
                            NProgress.set(percentComplete / neighbours_status.length);
                        }
                    }, false);
                }
                return xhr;
            },
            success: function (json) {
                neighbours_status[ind].checked = true;
                neighbours_status[ind].status = true;
                neighbours_status[ind].data = json;
            },
            error: function (jqXHR, textStatus, errorThrown) {
                neighbours_status[ind].checked = true;
                function errorMessage() {
                    alertMessage("alert-error", neighbours_status[ind].name + " > " +
                        (o.errorMessage ? o.errorMessage : "Request failed") +
                        (errorThrown ? ": " + errorThrown : ""));
                }
                if (o.error) {
                    o.error(neighbours_status[ind],
                        jqXHR, textStatus, errorThrown);
                } else if (o.errorOnceId) {
                    const alert_status = o.errorOnceId + neighbours_status[ind].name;
                    if (!(alert_status in sessionStorage)) {
                        sessionStorage.setItem(alert_status, true);
                        errorMessage();
                    }
                } else {
                    errorMessage();
                }
            },
            complete: function (jqXHR) {
                if (neighbours_status.every(function (elt) { return elt.checked; })) {
                    if (neighbours_status.some(function (elt) { return elt.status; })) {
                        if (o.success) {
                            o.success(neighbours_status, jqXHR);
                        } else {
                            alertMessage("alert-success", "Request completed");
                        }
                    } else {
                        alertMessage("alert-error", "Request failed");
                    }
                    if (o.complete) o.complete();
                    NProgress.done();
                }
            },
            statusCode: o.statusCode
        };
        if (o.method) {
            req_params.method = o.method;
        }
        if (o.params) {
            $.each(o.params, function (k, v) {
                req_params[k] = v;
            });
        }
        $.ajax(req_params);
    }

    // Public functions
    ui.alertMessage = alertMessage;

    ui.connect = function () {
        // Prevent locking out of the WebUI if timeout is too low.
        let timeout = localStorage.getItem("ajax_timeout");
        if (timeout < defaultAjaxTimeout) timeout = defaultAjaxTimeout;
        ajaxSetup(timeout);

        // Query "/stat" to check if user is already logged in or client ip matches "secure_ip"
        $.ajax({
            type: "GET",
            url: "stat",
            success: function (data) {
                sessionStorage.setItem("read_only", data.read_only);
                displayUI();
            },
            error: function () {
                function clearFeedback() {
                    $("#connectPassword").off("input").removeClass("is-invalid");
                    $("#authInvalidCharFeedback,#authUnauthorizedFeedback").hide();
                }

                $("#connectDialog")
                    .on("show.bs.modal", () => {
                        $("#connectDialog").off("show.bs.modal");
                        clearFeedback();
                    })
                    .on("shown.bs.modal", () => {
                        $("#connectDialog").off("shown.bs.modal");
                        $("#connectPassword").focus();
                    })
                    .modal("show");

                $("#connectForm").off("submit").on("submit", function (e) {
                    e.preventDefault();
                    const password = $("#connectPassword").val();

                    function invalidFeedback(tooltip) {
                        $("#connectPassword")
                            .addClass("is-invalid")
                            .off("input").on("input", () => clearFeedback());
                        $(tooltip).show();
                    }

                    if (!(/^[\u0020-\u007e]*$/).test(password)) {
                        invalidFeedback("#authInvalidCharFeedback");
                        $("#connectPassword").focus();
                        return;
                    }

                    ui.query("auth", {
                        headers: {
                            Password: password
                        },
                        success: function (json) {
                            const data = json[0].data;
                            $("#connectPassword").val("");
                            if (data.auth === "ok") {
                                sessionStorage.setItem("read_only", data.read_only);
                                saveCredentials(password);
                                $("#connectForm").off("submit");
                                $("#connectDialog").modal("hide");
                                displayUI();
                            }
                        },
                        error: function (jqXHR, textStatus) {
                            if (textStatus.statusText === "Unauthorized") {
                                invalidFeedback("#authUnauthorizedFeedback");
                            } else {
                                ui.alertMessage("alert-modal alert-error", textStatus.statusText);
                            }
                            $("#connectPassword").val("");
                            $("#connectPassword").focus();
                        },
                        params: {
                            global: false,
                        },
                        server: "local"
                    });
                });
            }
        });
    };

    ui.getPassword = getPassword;
    ui.getSelector = getSelector;

    /**
     * @param {string} url - A string containing the URL to which the request is sent
     * @param {Object} [options] - A set of key/value pairs that configure the Ajax request. All settings are optional.
     *
     * @param {Function} [options.complete] - A function to be called when the requests to all neighbours complete.
     * @param {Object|string|Array} [options.data] - Data to be sent to the server.
     * @param {Function} [options.error] - A function to be called if the request fails.
     * @param {string} [options.errorMessage] - Text to display in the alert message if the request fails.
     * @param {string} [options.errorOnceId] - A prefix of the alert ID to be added to the session storage. If the
     *     parameter is set, the error for each server will be displayed only once per session.
     * @param {Object} [options.headers] - An object of additional header key/value pairs to send along with requests
     *     using the XMLHttpRequest transport.
     * @param {string} [options.method] - The HTTP method to use for the request.
     * @param {Object} [options.params] - An object of additional jQuery.ajax() settings key/value pairs.
     * @param {string} [options.server] - A server to which send the request.
     * @param {Function} [options.success] - A function to be called if the request succeeds.
     *
     * @returns {undefined}
     */
    ui.query = function (url, options) {
        // Force options to be an object
        const o = options || {};
        Object.keys(o).forEach(function (option) {
            if (["complete", "data", "error", "errorMessage", "errorOnceId", "headers", "method", "params", "server",
                "statusCode", "success"]
                .indexOf(option) < 0) {
                throw new Error("Unknown option: " + option);
            }
        });

        let neighbours_status = [{
            name: "local",
            host: "local",
            url: "",
        }];
        o.server = o.server || checked_server;
        if (o.server === "All SERVERS") {
            queryServer(neighbours_status, 0, "neighbours", {
                success: function (json) {
                    const data = json[0].data;
                    if (jQuery.isEmptyObject(data)) {
                        neighbours = {
                            local: {
                                host: window.location.host,
                                url: window.location.origin + window.location.pathname
                            }
                        };
                    } else {
                        neighbours = data;
                    }
                    neighbours_status = [];
                    $.each(neighbours, function (ind) {
                        neighbours_status.push({
                            name: ind,
                            host: neighbours[ind].host,
                            url: neighbours[ind].url,
                        });
                    });
                    $.each(neighbours_status, function (ind) {
                        queryServer(neighbours_status, ind, url, o);
                    });
                },
                errorMessage: "Cannot receive neighbours data"
            });
        } else {
            if (o.server !== "local") {
                neighbours_status = [{
                    name: o.server,
                    host: neighbours[o.server].host,
                    url: neighbours[o.server].url,
                }];
            }
            queryServer(neighbours_status, 0, url, o);
        }
    };

    // Scan and History shared functions

    ui.tables = tables;
    ui.unix_time_format = unix_time_format;
    ui.set_page_size = set_page_size;

    ui.bindHistoryTableEventHandlers = function (table, symbolsCol) {
        function change_symbols_order(order) {
            $(".btn-sym-" + table + "-" + order).addClass("active").siblings().removeClass("active");
            const compare_function = get_compare_function(table);
            $.each(tables[table].rows.all, function (i, row) {
                const cell_val = sort_symbols(ui.symbols[table][i], compare_function);
                row.cells[symbolsCol].val(cell_val, false, true);
            });
        }

        $("#selSymOrder_" + table).unbind().change(function () {
            const order = this.value;
            change_symbols_order(order);
        });
        $("#" + table + "_page_size").change((e) => set_page_size(table, e.target.value, true));
        $(document).on("click", ".btn-sym-order-" + table + " input", function () {
            const order = this.value;
            $("#selSymOrder_" + table).val(order);
            change_symbols_order(order);
        });
    };

    ui.destroyTable = function (table) {
        if (tables[table]) {
            tables[table].destroy();
            delete tables[table];
        }
    };


    ui.initHistoryTable = function (data, items, table, columns, expandFirst) {
        /* eslint-disable no-underscore-dangle */
        FooTable.Cell.extend("collapse", function () {
            // call the original method
            this._super();
            // Copy cell classes to detail row tr element
            this._setClasses(this.$detail);
        });
        /* eslint-enable no-underscore-dangle */

        /* eslint-disable consistent-this, no-underscore-dangle, one-var-declaration-per-line */
        FooTable.actionFilter = FooTable.Filtering.extend({
            construct: function (instance) {
                this._super(instance);
                this.actions = ["reject", "add header", "greylist",
                    "no action", "soft reject", "rewrite subject"];
                this.def = "Any action";
                this.$action = null;
            },
            $create: function () {
                this._super();
                const self = this, $form_grp = $("<div/>", {
                    class: "form-group d-inline-flex align-items-center"
                }).append($("<label/>", {
                    class: "sr-only",
                    text: "Action"
                })).prependTo(self.$form);

                $("<div/>", {
                    class: "form-check form-check-inline",
                    title: "Invert action match."
                }).append(
                    self.$not = $("<input/>", {
                        type: "checkbox",
                        class: "form-check-input",
                        id: "not_" + table
                    }).on("change", {self: self}, self._onStatusDropdownChanged),
                    $("<label/>", {
                        class: "form-check-label",
                        for: "not_" + table,
                        text: "not"
                    })
                ).appendTo($form_grp);

                self.$action = $("<select/>", {
                    class: "form-select"
                }).on("change", {
                    self: self
                }, self._onStatusDropdownChanged).append(
                    $("<option/>", {
                        text: self.def
                    })).appendTo($form_grp);

                $.each(self.actions, function (i, action) {
                    self.$action.append($("<option/>").text(action));
                });
            },
            _onStatusDropdownChanged: function (e) {
                const self = e.data.self;
                const selected = self.$action.val();
                if (selected !== self.def) {
                    const not = self.$not.is(":checked");
                    let query = null;

                    if (selected === "reject") {
                        query = not ? "-reject OR soft" : "reject -soft";
                    } else {
                        query = not ? selected.replace(/(\b\w+\b)/g, "-$1") : selected;
                    }

                    self.addFilter("action", query, ["action"]);
                } else {
                    self.removeFilter("action");
                }
                self.filter();
            }
        });
        /* eslint-enable consistent-this, no-underscore-dangle, one-var-declaration-per-line */

        tables[table] = FooTable.init("#historyTable_" + table, {
            columns: columns,
            rows: items,
            expandFirst: expandFirst,
            paging: {
                enabled: true,
                limit: 5,
                size: ui.page_size[table]
            },
            filtering: {
                enabled: true,
                position: "left",
                connectors: false
            },
            sorting: {
                enabled: true
            },
            components: {
                filtering: FooTable.actionFilter
            },
            on: {
                "expand.ft.row": function (e, ft, row) {
                    setTimeout(function () {
                        const detail_row = row.$el.next();
                        const order = getSelector("selSymOrder_" + table);
                        detail_row.find(".btn-sym-" + table + "-" + order)
                            .addClass("active").siblings().removeClass("active");
                    }, 5);
                }
            }
        });
    };

    ui.escapeHTML = function (string) {
        const htmlEscaper = /[&<>"'/`=]/g;
        const htmlEscapes = {
            "&": "&amp;",
            "<": "&lt;",
            ">": "&gt;",
            "\"": "&quot;",
            "'": "&#39;",
            "/": "&#x2F;",
            "`": "&#x60;",
            "=": "&#x3D;"
        };
        return String(string).replace(htmlEscaper, function (match) {
            return htmlEscapes[match];
        });
    };

    ui.preprocess_item = function (item) {
        function escape_HTML_array(arr) {
            arr.forEach(function (d, i) { arr[i] = ui.escapeHTML(d); });
        }

        for (const prop in item) {
            if (!{}.hasOwnProperty.call(item, prop)) continue;
            switch (prop) {
                case "rcpt_mime":
                case "rcpt_smtp":
                    escape_HTML_array(item[prop]);
                    break;
                case "symbols":
                    Object.keys(item.symbols).forEach(function (key) {
                        const sym = item.symbols[key];
                        if (!sym.name) {
                            sym.name = key;
                        }
                        sym.name = ui.escapeHTML(sym.name);
                        if (sym.description) {
                            sym.description = ui.escapeHTML(sym.description);
                        }

                        if (sym.options) {
                            escape_HTML_array(sym.options);
                        }
                    });
                    break;
                default:
                    if (typeof item[prop] === "string") {
                        item[prop] = ui.escapeHTML(item[prop]);
                    }
            }
        }

        if (item.action === "clean" || item.action === "no action") {
            item.action = "<div style='font-size:11px' class='badge text-bg-success'>" + item.action + "</div>";
        } else if (item.action === "rewrite subject" || item.action === "add header" || item.action === "probable spam") {
            item.action = "<div style='font-size:11px' class='badge text-bg-warning'>" + item.action + "</div>";
        } else if (item.action === "spam" || item.action === "reject") {
            item.action = "<div style='font-size:11px' class='badge text-bg-danger'>" + item.action + "</div>";
        } else {
            item.action = "<div style='font-size:11px' class='badge text-bg-info'>" + item.action + "</div>";
        }

        const score_content = (item.score < item.required_score)
            ? "<span class='text-success'>" + item.score.toFixed(2) + " / " + item.required_score + "</span>"
            : "<span class='text-danger'>" + item.score.toFixed(2) + " / " + item.required_score + "</span>";

        item.score = {
            options: {
                sortValue: item.score
            },
            value: score_content
        };
    };

    ui.process_history_v2 = function (data, table) {
        // Display no more than rcpt_lim recipients
        const rcpt_lim = 3;
        const items = [];
        const unsorted_symbols = [];
        const compare_function = get_compare_function(table);

        $("#selSymOrder_" + table + ", label[for='selSymOrder_" + table + "']").show();

        $.each(data.rows,
            function (i, item) {
                function more(p) {
                    const l = item[p].length;
                    return (l > rcpt_lim) ? " … (" + l + ")" : "";
                }
                function format_rcpt(smtp, mime) {
                    let full = "";
                    let shrt = "";
                    if (smtp) {
                        full = "[" + item.rcpt_smtp.join(", ") + "] ";
                        shrt = "[" + item.rcpt_smtp.slice(0, rcpt_lim).join(",&#8203;") + more("rcpt_smtp") + "]";
                        if (mime) {
                            full += " ";
                            shrt += " ";
                        }
                    }
                    if (mime) {
                        full += item.rcpt_mime.join(", ");
                        shrt += item.rcpt_mime.slice(0, rcpt_lim).join(",&#8203;") + more("rcpt_mime");
                    }
                    return {full: full, shrt: shrt};
                }

                function get_symbol_class(name, score) {
                    if (name.match(/^GREYLIST$/)) {
                        return "symbol-special";
                    }

                    if (score < 0) {
                        return "symbol-negative";
                    } else if (score > 0) {
                        return "symbol-positive";
                    }
                    return null;
                }

                ui.preprocess_item(item);
                Object.values(item.symbols).forEach(function (sym) {
                    sym.str = '<span class="symbol-default ' + get_symbol_class(sym.name, sym.score) + '"><strong>';

                    if (sym.description) {
                        sym.str += '<abbr title="' + sym.description + '">' + sym.name + "</abbr>";
                    } else {
                        sym.str += sym.name;
                    }
                    sym.str += "</strong> (" + sym.score + ")</span>";

                    if (sym.options) {
                        sym.str += " [" + sym.options.join(",") + "]";
                    }
                });
                unsorted_symbols.push(item.symbols);
                item.symbols = sort_symbols(item.symbols, compare_function);
                if (table === "scan") {
                    item.unix_time = (new Date()).getTime() / 1000;
                }
                item.time = {
                    value: unix_time_format(item.unix_time),
                    options: {
                        sortValue: item.unix_time
                    }
                };
                item.time_real = item.time_real.toFixed(3);
                item.id = item["message-id"];

                if (table === "history") {
                    let rcpt = {};
                    if (!item.rcpt_mime.length) {
                        rcpt = format_rcpt(true, false);
                    } else if (
                        $(item.rcpt_mime).not(item.rcpt_smtp).length !== 0 ||
                        $(item.rcpt_smtp).not(item.rcpt_mime).length !== 0
                    ) {
                        rcpt = format_rcpt(true, true);
                    } else {
                        rcpt = format_rcpt(false, true);
                    }
                    item.rcpt_mime_short = rcpt.shrt;
                    item.rcpt_mime = rcpt.full;

                    if (item.sender_mime !== item.sender_smtp) {
                        item.sender_mime = "[" + item.sender_smtp + "] " + item.sender_mime;
                    }
                }
                items.push(item);
            });

        return {items: items, symbols: unsorted_symbols};
    };

    ui.waitForRowsDisplayed = function (table, rows_total, callback, iteration) {
        let i = (typeof iteration === "undefined") ? 10 : iteration;
        const num_rows = $("#historyTable_" + table + " > tbody > tr:not(.footable-detail-row)").length;
        if (num_rows === ui.page_size[table] ||
            num_rows === rows_total) {
            return callback();
        } else if (--i) {
            setTimeout(function () {
                ui.waitForRowsDisplayed(table, rows_total, callback, i);
            }, 500);
        }
        return null;
    };


    (function initSettings() {
        let selected_locale = null;
        let custom_locale = null;
        const localeTextbox = ".popover #settings-popover #locale";

        function validateLocale(saveToLocalStorage) {
            function toggle_form_group_class(remove, add) {
                $(localeTextbox).removeClass("is-" + remove).addClass("is-" + add);
            }

            const now = new Date();

            if (custom_locale.length) {
                try {
                    now.toLocaleString(custom_locale);

                    if (saveToLocalStorage) localStorage.setItem("custom_locale", custom_locale);
                    locale = (selected_locale === "custom") ? custom_locale : null;
                    toggle_form_group_class("invalid", "valid");
                } catch (err) {
                    locale = null;
                    toggle_form_group_class("valid", "invalid");
                }
            } else {
                if (saveToLocalStorage) localStorage.setItem("custom_locale", null);
                locale = null;
                $(localeTextbox).removeClass("is-valid is-invalid");
            }

            // Display date example
            $(".popover #settings-popover #date-example").text(
                (locale)
                    ? now.toLocaleString(locale)
                    : now.toLocaleString()
            );
        }

        $("#settings").popover({
            container: "body",
            placement: "bottom",
            html: true,
            sanitize: false,
            content: function () {
                // Using .clone() has the side-effect of producing elements with duplicate id attributes.
                return $("#settings-popover").clone();
            }
        // Restore the tooltip of the element that the popover is attached to.
        }).attr("title", function () {
            return $(this).attr("data-original-title");
        });
        $("#settings").on("click", function (e) {
            e.preventDefault();
        });
        $("#settings").on("inserted.bs.popover", function () {
            selected_locale = localStorage.getItem("selected_locale") || "browser";
            custom_locale = localStorage.getItem("custom_locale") || "";
            validateLocale();

            $('.popover #settings-popover input:radio[name="locale"]').val([selected_locale]);
            $(localeTextbox).val(custom_locale);

            ajaxSetup(localStorage.getItem("ajax_timeout"), true);
        });
        $(document).on("change", '.popover #settings-popover input:radio[name="locale"]', function () {
            selected_locale = this.value;
            localStorage.setItem("selected_locale", selected_locale);
            validateLocale();
        });
        $(document).on("input", localeTextbox, function () {
            custom_locale = $(localeTextbox).val();
            validateLocale(true);
        });
        $(document).on("input", ajaxTimeoutBox, function () {
            ajaxSetup($(ajaxTimeoutBox).val(), false, true);
        });
        $(document).on("click", ".popover #settings-popover #ajax-timeout-restore", function () {
            ajaxSetup(null, true, true);
        });

        // Dismiss Bootstrap popover by clicking outside
        $("body").on("click", function (e) {
            $(".popover").each(function () {
                if (
                    // Popover's descendant
                    $(this).has(e.target).length ||
                    // Button (or icon within a button) that triggers the popover.
                    $(e.target).closest("button").attr("aria-describedby") === this.id
                ) return;
                $("#settings").popover("hide");
            });
        });
    }());

    $("#selData").change(function () {
        tabClick("#throughput_nav");
    });

    $(document).ajaxStart(function () {
        $("#refresh > svg").addClass("fa-spin");
    });
    $(document).ajaxComplete(function () {
        setTimeout(function () {
            $("#refresh > svg").removeClass("fa-spin");
        }, 1000);
    });

    $('a[data-bs-toggle="tab"]').on("shown.bs.tab", function () {
        tabClick("#" + $(this).attr("id"));
    });
    $("#refresh, #disconnect").on("click", function (e) {
        e.preventDefault();
        tabClick("#" + $(this).attr("id"));
    });
    $(".dropdown-menu a").click(function (e) {
        e.preventDefault();
        const classList = $(this).attr("class");
        const menuClass = (/\b(?:dynamic|history|preset)\b/).exec(classList)[0];
        $(".dropdown-menu a.active." + menuClass).removeClass("active");
        $(this).addClass("active");
        tabClick("#autoRefresh");
    });

    $("#selSrv").change(function () {
        checked_server = this.value;
        $("#selSrv [value=\"" + checked_server + "\"]").prop("checked", true);
        if (checked_server === "All SERVERS") {
            $("#learnServers").show();
        } else {
            $("#learnServers").hide();
        }
        tabClick("#" + $("#tablist > .nav-item > .nav-link.active").attr("id"));
    });

    // Radio buttons
    $(document).on("click", "input:radio[name=\"clusterName\"]", function () {
        if (!this.disabled) {
            checked_server = this.value;
            tabClick("#status_nav");
        }
    });

    $("#loading").addClass("d-none");

    return ui;
});