hestiacp/web/js/init.js

$(document).ready(function(){
    if($('.body-login')[0]){
        $('input').first().focus();
    }

    $(".submenu-select-dropdown").each(function(){
        $(this).wrap("<span class='submenu-select-wrapper'></span>");
        $(this).after("<span class='holder'></span>");
    });
    $(".submenu-select-dropdown").change(function(){
        var selectedOption = $(this).find(":selected").text();
        $(this).next(".holder").text(selectedOption);
    }).trigger('change');
    $('.to-top').on('click', function(evt) {
        evt.preventDefault();
        $("html, body").animate({ scrollTop: 0 }, "normal");
    });

    $('.button').on('click',function(evt){
        var action = $(this).data('action');
        var id = $(this).data('id');
        if(action=='submit' && document.getElementById(id)){
            evt.preventDefault();
            $(document.getElementById(id)).submit();
        }
    });

            var isMobile = false; //initiate as false
            // device detection
            if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent)
                || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))){
                 isMobile = true;
                $('body').addClass('mobile');
            }

            $(window).scroll(function(){hover_menu()});

            $('.l-sort-toolbar .sort-by').click(function(){
              $('.context-menu.sort-order').toggle().css({left: $(this).parent().parent().parent().position().left - 0});
            });


            // CREATE BUTTON

            $('.l-sort__create-btn').hover(function(){
              $(".l-sort__create-btn").append("<div id='add-icon'></div>");
              $(".l-sort__create-btn").append("<div id='tooltip'>"+$('.l-sort__create-btn').attr('title').replace(' ','&nbsp;')+"</div>");
            }, function(){
              $("#add-icon").remove();
              $("#tooltip").remove();
            });


            // SEARCH BOX

            $('.l-sort-toolbar__search, .l-sort-toolbar__search-box .search-input').hover(function(){
              clearTimeout(VE.tmp.search_display_interval);
              clearTimeout(VE.tmp.search_hover_interval);
              VE.tmp.search_display_interval = setTimeout(function(){$('.search-input').addClass('activated');}, 150);
            }, function(){
              clearTimeout(VE.tmp.search_display_interval);
              clearTimeout(VE.tmp.search_hover_interval);
              VE.tmp.search_hover_interval = setTimeout(function(){
                if(!VE.tmp.search_activated && !$(".search-input").val().length){
                  $(".search-input").removeClass('activated');
                }
              }, 600);
            });

            $('.search-input').focus(function(){
              VE.tmp.search_activated = 1;
              clearTimeout(VE.tmp.search_hover_interval);
            });
            $('.search-input').blur(function(){
              VE.tmp.search_activated = 0;
              clearTimeout(VE.tmp.search_hover_interval);
              VE.tmp.search_hover_interval = setTimeout(function(){
                if(!$(".search-input").val().length){
                  $(".search-input").removeClass('activated');
                }
              }, 600);
            });


            // TIMER

            if($('.movement.left').length){
              VE.helpers.refresh_timer.right = $('.movement.right');
              VE.helpers.refresh_timer.left = $('.movement.left');
              VE.helpers.refresh_timer.start();

              $('.pause').click(function(){
                VE.helpers.refresh_timer.stop();
                $('.pause').addClass('u-hidden');
                $('.play').removeClass('u-hidden');
                $('.refresh-timer').addClass('paused');
              });

              $('.play').click(function(){
                VE.helpers.refresh_timer.start();
                $('.pause').removeClass('u-hidden');
                $('.play').addClass('u-hidden');
                $('.refresh-timer').removeClass('paused');
              });
            }


            // SORTING

            $('#vstobjects input, #vstobjects select, #vstobjects textarea').change(function(){VE.tmp.form_changed=1});

            $('.sort-order span').click(function(){
              $('.context-menu.sort-order').toggle();
              if($(this).hasClass('active'))
                return;

              $('.sort-order span').removeClass('active');
              $(this).addClass('active');
              VE.tmp.sort_par = $(this).parent('li').attr('entity');
              VE.tmp.sort_as_int = $(this).parent('li').attr('sort_as_int');
              VE.tmp.sort_direction = $(this).hasClass('up')*1 || -1;

              $('.l-sort .sort-by span b').html($(this).parent('li').find('.name').html());
              $('.l-sort .sort-by i').removeClass('fa-sort-alpha-up fa-sort-alpha-down');
              $(this).hasClass('up') ? $('.l-sort .sort-by i').addClass('fa-sort-alpha-up') : $('.l-sort .sort-by i').addClass('fa-sort-alpha-down');
              $('.units .l-unit').sort(function (a, b) {
                if(VE.tmp.sort_as_int)
                  return parseInt($(a).attr(VE.tmp.sort_par)) >= parseInt($(b).attr(VE.tmp.sort_par)) ? VE.tmp.sort_direction : VE.tmp.sort_direction * -1;
                else
                  return $(a).attr(VE.tmp.sort_par) <= $(b).attr(VE.tmp.sort_par) ? VE.tmp.sort_direction : VE.tmp.sort_direction * -1;
                }).appendTo(".l-center.units");
              });

              $('#objects').submit( function (e){
                 if(!e.originalEvent){
                    return;
                 }
                 e.preventDefault();
                 $('.ch-toggle').each( function (){
                    if($(this).prop('checked')){
                        key=this.name;
                        div=$('<input type="hidden" name="'+key+'" value="'+this.value+'"/>');
                        $('#objects').append(div);
                    }
                 });

                 $('#objects').submit();
                 return false;
              });

              // Shortcuts

              shortcut.add("Ctrl+Enter", function(){
                $('form#vstobjects').submit();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': false,
                  'target':           document
                  }
              );

              shortcut.add("Ctrl+Backspace", function(){
                var redirect = $('a.button#btn-back').attr('href')
                if(VE.tmp.form_changed && redirect){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', redirect);
                } else if($('form#vstobjects .button.cancel')[0]){
                  location.href=$('form#vstobjects input.cancel').attr('onclick').replace("location.href='", "").replace("'","");
                } else if(redirect){
                  location.href = redirect;
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': false,
                  'target':           document
                  }
              );


              shortcut.add("f", function(){
                $('.search-input').addClass('activated').focus();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              $(window).on('keypress', function(evt) {
                  var tag = evt.target.tagName.toLowerCase();
                  if (evt.charCode == 97 && tag != 'input' && tag != 'textarea' && tag != 'selectbox') {
                      evt.preventDefault();
                      if (!evt.ctrlKey && !evt.shiftKey) {
                          //if ($('.l-sort__create-btn')[0]) {
                          if ($('.button#btn-create').length) {
                              location.href=$('.button#btn-create').attr('href');
                          }
                      }
                      else {
                          if ($('.l-unit .ch-toggle:eq(0)').prop('checked')) {
                                $('.l-unit').removeClass('selected');
                                $('.l-unit .ch-toggle').prop('checked', false);
                          }
                          else {
                               $('.l-unit').addClass('selected');
                               $('.l-unit .ch-toggle').prop('checked', true);
                          }
                      }
                }
              });

              shortcut.add("1", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(1) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("2", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(2) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("3", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(3) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("4", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(4) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("5", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(5) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("6", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(6) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("7", function(){
                var target = $('.l-stat .l-stat__col:nth-of-type(7) a')
                if(target.length != 1){
                  return;
                }
                if(VE.tmp.form_changed){
                  VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect'), '', target.attr('href'));
                } else {
                  location.href=target.attr('href');
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("h", function(){
                var shortcutsDialog = document.querySelector('.shortcuts');
                if (shortcutsDialog.open) {
                  shortcutsDialog.close();
                } else {
                  shortcutsDialog.showModal();
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("Esc", function(){
                var shortcutsDialog = document.querySelector('.shortcuts');
                if (shortcutsDialog.open) {
                  shortcutsDialog.close();
                }
                $('input, checkbox, textarea, select').blur();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': false,
                  'target':           document
                  }
              );

              shortcut.add("Left", function(){
                VE.navigation.move_focus_left();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("Right", function(){
                VE.navigation.move_focus_right();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );



              shortcut.add("down", function(){
                VE.navigation.move_focus_down();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("up", function(){
                VE.navigation.move_focus_up();
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("l", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-l');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("s", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-s');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("w", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-w');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("d", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-d');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("r", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-r');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("n", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-n');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("u", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-u');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );


              shortcut.add("Delete", function(){
                var elm = $('.units.active .l-unit.focus .shortcut-delete');
                if(elm.length){
                  VE.navigation.shortcut(elm);
                }
              }, {
                  'type':             'keydown',
                  'propagate':        false,
                  'disable_in_input': true,
                  'target':           document
                  }
              );

              shortcut.add("Enter", function(evt){

                if (evt.target.tagName == 'INPUT' && evt.target.form.id == 'vstobjects'){
                  $('form#vstobjects').submit();
                }

                if(VE.tmp.form_changed){
                  if(!$('.ui-dialog').is(':visible')){
                    VE.helpers.createConfirmationDialog($('.js-confirm-dialog-redirect')[0], '', $(VE.navigation.state.menu_selector + '.focus a').attr('href'));
                  } else { // if dialog is opened - submitting confirm box by "enter" shortcut
                    $('.ui-dialog button.submit').click();
                  }
                } else {
                    if(!$('.ui-dialog').is(':visible')){
                      var elm = $('.units.active .l-unit.focus .shortcut-enter');
                      if(elm.length){
                        VE.navigation.shortcut(elm);
                      } else {
                        VE.navigation.enter_focused();
                      }
                    } else { // if dialog is opened - submitting confirm box by "enter" shortcut
                      $('.ui-dialog button.submit').click();
                    }
                }
              }, {
                  'type':             'keydown',
                  'propagate':        true,
                  'disable_in_input': false,
                  'target':           document
                  }
              );

              document.querySelector('.shortcuts-close').addEventListener('click', function(){
                var shortcutsDialog = document.querySelector('.shortcuts');
                if (shortcutsDialog.open) {
                  shortcutsDialog.close();
                }
              });

              document.querySelector('.to-shortcuts').addEventListener('click', function() {
                event.preventDefault();
                var shortcutsDialog = document.querySelector('.shortcuts');
                if (shortcutsDialog.open) {
                  shortcutsDialog.close();
                } else {
                  shortcutsDialog.showModal();
                }
              });

              $(document).click(function(evt){
                //close notification popup
                if(!$(evt.target).hasClass('l-profile__notifications') && $(evt.target).parents('ul.notification-container').length == 0){
                  $('.notification-container').addClass('u-hidden');
                  $('.l-profile__notifications').removeClass('active');
                }
              });


              // focusing on the first input at form
              if( location.href.indexOf('lead=') == -1 && !$('.ui-dialog').is(':visible') ){
                $('#vstobjects .form-control:not([disabled]), #vstobjects .form-select:not([disabled])').first().focus();
              }

              $('.l-profile__notifications').click(function(){
                if(!$('.l-profile__notifications').hasClass('active')){
                  VE.notifications.get_list();
                  $('.l-profile__notifications').addClass('active');
                  left = $('.l-profile__notifications').offset().left - $('.notification-container').outerWidth() + 22;
                  $('.notification-container').css({left: left+'px'});

                } else {
                  $('.notification-container').addClass('u-hidden');
                  $('.l-profile__notifications').removeClass('active');
                }
              });

            VE.navigation.init();


            $('.button').attr('title','ctrl+Enter');
            $('.button.cancel').attr('title','ctrl+Backspace');

            VE.core.register();
            if (location.href.search(/list/) != -1) {
                var shift_select_ref = $('body').finderSelect({
                    children: '.l-unit',
                    'onFinish': function(evt) {
                        if ($('.l-content').find('.l-unit.selected').length == $('.l-content').find('.l-unit').length) {
                            $('.toggle-all').addClass('clicked-on');
                        }
                    },
                    'toggleAllHook': function() {
                        if ($('.l-unit').length == $('.ch-toggle:checked').length) {
                            $('.l-unit.selected').removeClass('selected');
                            $('.ch-toggle').prop('checked', false);
                            $('#toggle-all').prop('checked', false);
                        }
                        else {
                            $('.ch-toggle').prop('checked', true);
                            $('#toggle-all').prop('checked', true);
                        }
                    }
                });

                $('table').on('mousedown', 'td', function(e) {
                    if (e.ctrlKey) {
                        e.preventDefault();
                    }
                });
            }

            //
            $('form#objects').on('submit', function(evt) {
                $('.l-unit').find('.ch-toggle').prop('checked', false);
                $('.l-unit.selected').find('.ch-toggle').prop('checked', true);
            });
            // todo: maybe give the save button id?
            $(".button[data-id=vstobjects][data-action=submit]").on('click', function(ev){
              let loadingAnimationEle = document.createElement("div");
              loadingAnimationEle.innerHTML = '<div class="timer-container" style="float:right;"><div class="timer-button spinner"><div class="spinner-inner"></div><div class="spinner-mask"></div> <div class="spinner-mask-two"></div></div></div>';
              // improve alignment
              var buttonStrip = this.closest(".l-unit-toolbar__buttonstrip");
              buttonStrip.style.marginTop = "8px";
              // this both gives an indication that we've clicked and is loading, also prevents double-clicking/clicking-on-something-else while loading.
              $(".button[data-id=vstobjects][data-action=submit]").replaceWith(loadingAnimationEle);
              $(".button").replaceWith('');
              // workaround a render bug on Safari (loading icon doesn't render without this)
              ev.preventDefault();
              $('#vstobjects').submit();
            });
    });

/**
 * generates a random string
 * using a cryptographically secure rng,
 * and ensuring it contains at least 1 lowercase, 1 uppercase, and 1 number.
 *
 * @param int length
 * @throws Error if length is too small to create a "sufficiently secure" string
 * @returns string
 */
function randomString2(length = 16) {
  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  var secure_rng = function (min, max) {
    if (min < 0 || min > 0xffff) {
      throw new Error(
        "minimum supported number is 0, this generator can only make numbers between 0-65535 inclusive."
      );
    }
    if (max > 0xffff || max < 0) {
      throw new Error(
        "max supported number is 65535, this generator can only make numbers between 0-65535 inclusive."
      );
    }
    if (min > max) {
      throw new Error("dude min>max wtf");
    }
    // micro-optimization
    let randArr = max > 255 ? new Uint16Array(1) : new Uint8Array(1);
    let ret;
    let attempts = 0;
    for (;;) {
      crypto.getRandomValues(randArr);
      ret = randArr[0];
      if (ret >= min && ret <= max) {
        return ret;
      }
      ++attempts;
      if (attempts > 1000000) {
        // should basically never happen with max 0xFFFF/Uint16Array.
        throw new Error("tried a million times, something is wrong");
      }
    }
  };
  let attempts = 0;
  let minimumStrengthRegex = new RegExp(
    /^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*\d)[a-zA-Z\d]{8,}$/
  );
  let randmax = chars.length - 1;
  for (;;) {
    let ret = "";
    for (let i = 0; i < length; ++i) {
      ret += chars[secure_rng(0, randmax)];
    }
    if (minimumStrengthRegex.test(ret)) {
      return ret;
    }
    ++attempts;
    if (attempts > 1000000) {
      throw new Error("tried a million times, something is wrong");
    }
  }
}