gostfix/web/js/forms.js

const passwordRegex = /[A-Z0-6!"\#$%&'()*+,\-./:;<=>?@\[\\\]^_‘{|}~]/;
const fullNameRegex = /^[\w]+[\w ]*$/;

function initControls() {
    $('.inpt, .password').find('.icon').mousedown(function(e) {
        if ($(e.target).parent().hasClass('password')) {
            $(e.target).parent().find('input').attr('type', 'text');
        }
    });

    $('.inpt, .password').find('.icon').mouseup(function(e) {
        if ($(e.target).parent().hasClass('password')) {
            $(e.target).parent().find('input').attr('type', 'password');
        }
    });
}

function addValidation(field, form, func) {
    func(field);
    $(field).on('input', function(e) {func(e.target, form)});
}

function validateForm(form) {
    if (form == null) {
        return false;
    }

    if ($(form).find('.inpt').hasClass('bad')) {
        $(form).find('.btn').addClass('disabled');
        return false;
    }
    $(form).find('.btn').removeClass('disabled');
    return true;
}

function validatePassword(name, form) {
    var element = $(name);
    var fieldDiv = element.parent();
    if (element.val() != '') {
        fieldDiv.removeClass('bad');
        if (element.val().length < 8 || !passwordRegex.test(element.val())) {
            fieldDiv.addClass('weak');
        } else {
            fieldDiv.removeClass('weak');
        }
    } else {
        fieldDiv.removeClass('weak');
        fieldDiv.addClass('bad');
    }
    validateForm(form);
}

function validateFullName(name, form) {
    var element = $(name);
    var fieldDiv = element.parent();
    if (fullNameRegex.test(element.val())) {
        fieldDiv.removeClass('bad');
    } else {
        fieldDiv.addClass('bad');
    }
    validateForm(form);
}

function validateField(element, form) {
    var fieldDiv = element.parent();
    if (element.val() != '') {
        fieldDiv.removeClass('bad');
    } else {
        fieldDiv.addClass('bad');
    }
    validateForm(form);
}

//Email validation
const emailRegex = /^[a-zA-Z]+[\w\d\._-]*$/;
var emailInputTimer = null;
function validateEmail(name, form) {
    var element = $(name);
    var fieldDiv = element.parent();
    fieldDiv.addClass('bad');
    if (emailRegex.test(element.val())) {
        clearTimeout(emailInputTimer);
        emailInputTimer = setTimeout(function(){
                $.ajax({
                url: '/checkEmail',
                data: {
                    user: element.val()
                },
                success: function(result) {
                    fieldDiv.removeClass('bad');
                    validateForm(form);
                },
                error: function(jqXHR, textStatus, errorThrown) {
                    fieldDiv.addClass('bad');
                    validateForm(form);
                }
            });
        }, 200);
        return;
    } else {
        validateForm(form);
    }
}