LegalIdentityConfiguration.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.ExceptionServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Waher.Content;
using Waher.Content.Html;
using Waher.Content.Json;
using Waher.Content.Markdown;
using Waher.Events;
using Waher.IoTGateway.Setup.Legal;
using Waher.Networking.HTTP;
using Waher.Networking.XMPP;
using Waher.Networking.XMPP.Contracts;
using Waher.Networking.XMPP.Contracts.EventArguments;
using Waher.Persistence;
using Waher.Persistence.Attributes;
using Waher.Runtime.IO;
using Waher.Runtime.Language;
using Waher.Script;
using Waher.Security;
using Waher.Security.CallStack;
using Waher.Security.TOTP;
 
namespace Waher.IoTGateway.Setup
{
    public class LegalIdentityConfiguration : SystemMultiStepConfiguration
    {
        internal static readonly Regex FromSaveUnsavedRegex = new Regex(@"Waher[.]Persistence[.]Files[.]ObjectBTreeFile[.+]((<SaveUnsaved>\w*[.]\w*)|(SaveUnsavedLocked))",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex FromUpdateObjectRegex = new Regex(@"Waher[.]Persistence[.]Files[.]ObjectBTreeFile[.+]((<UpdateObject>\w*[.]\w*)|(UpdateObjectLocked))",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex GatewayStartupRegex = new Regex(@"Waher[.]IoTGateway[.]Gateway([.]Start|[.+]<?Start>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex ApplyLegalIdentityRegex = new Regex(@"Waher[.]IoTGateway[.]Setup[.]LegalIdentityConfiguration([.]ApplyLegalIdentity|[.+]<?ApplyLegalIdentity>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex ApplyIdRegex = new Regex(@"Waher[.]IoTGateway[.]Setup[.]LegalIdentityConfiguration([.]ApplyId|[.+]<?ApplyId>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex GenerateNewKeysRegex = new Regex(@"Waher[.]Networking[.]XMPP[.]Contracts[.]ContractsClient([.]GenerateNewKeys|[.+]<?GenerateNewKeys>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex GetAttachmentRegex = new Regex(@"Waher[.]Networking[.]XMPP[.]Contracts[.]ContractsClient[.+]<?GetAttachmentAsync>?\w*[.]\w*",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex CreateCredentialRegex = new Regex(@"Waher[.]Security[.]TOTP[.]ExternalCredential[.+](CreateAsync|<?CreateAsync>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        internal static readonly Regex ExportCredentialsRegex = new Regex(@"Waher[.]Security[.]TOTP[.]ExternalCredential[.+](ExportAsync|<?ExportAsync>?\w*[.]\w*)",
            RegexOptions.Compiled | RegexOptions.Singleline);
        private static readonly ICallStackCheck[] approvedSources = Assert.Convert(new object[]
        {
            "Waher.Persistence.NeuroLedger.NeuroLedgerProvider",
            typeof(Content.Markdown.Web.MarkdownToHtmlConverter),
            "Waher.IoTGateway.Setup.LegalIdentityConfiguration.UpdateClients",
            FromSaveUnsavedRegex,
            FromUpdateObjectRegex,
            GatewayStartupRegex
        });
        private static readonly ICallStackCheck[] approvedContractClientSources = Assert.Convert(new object[]
        {
            "Waher.Service.IoTBroker.Legal.MFA.QuickLogin",
            "Waher.Service.IoTBroker.Marketplace.MarketplaceProcessor",
            "Waher.Service.IoTBroker.WebServices.Agent.Account.RemoteQuickLogin",
            "Waher.Service.Abc4Io.Model.Actions.Contract.SignContract",
            ApplyLegalIdentityRegex,
            ApplyIdRegex,
            typeof(LegalIdentityConfiguration),
            GenerateNewKeysRegex,
            GetAttachmentRegex
        });
        private static readonly ICallStackCheck[] approvedOtpSources = Assert.Convert(new object[]
        {
            typeof(Content.Markdown.Web.MarkdownToHtmlConverter),
            FromSaveUnsavedRegex,
            FromUpdateObjectRegex,
            GatewayStartupRegex,
            CreateCredentialRegex,
            ExportCredentialsRegex
        });
 
        private static LegalIdentityConfiguration instance = null;
        private static LegalIdentity[] allIdentities = null;
        private static LegalIdentity[] approvedIdentities = null;
 
        private HttpResource applyLegalIdentity = null;
        private HttpResource contractAction = null;
 
        private bool useLegalIdentity = false;
        private bool protectWithPassword = false;
        private string firstName = string.Empty;
        private string middleName = string.Empty;
        private string lastName = string.Empty;
        private string personalNumber = string.Empty;
        private string address = string.Empty;
        private string address2 = string.Empty;
        private string postalCode = string.Empty;
        private string area = string.Empty;
        private string city = string.Empty;
        private string region = string.Empty;
        private string country = string.Empty;
        private string nationality = string.Empty;
        private string gender = string.Empty;
        private string orgName = string.Empty;
        private string orgDepartment = string.Empty;
        private string orgRole = string.Empty;
        private string orgNumber = string.Empty;
        private string orgAddress = string.Empty;
        private string orgAddress2 = string.Empty;
        private string orgPostalCode = string.Empty;
        private string orgArea = string.Empty;
        private string orgCity = string.Empty;
        private string orgRegion = string.Empty;
        private string orgCountry = string.Empty;
        private AlternativeField[] altFields = null;
        private AlternativeField[] passwordHashes = null;
        private DateTime checkApprovedExpiry = DateTime.MinValue;
        private DateTime? birthDate = null;
 
        public LegalIdentityConfiguration()
        {
        }
 
        public static LegalIdentityConfiguration Instance => instance;
 
        [DefaultValue(false)]
        public bool UseLegalIdentity
        {
            get => this.useLegalIdentity;
            set => this.useLegalIdentity = value;
        }
 
        [DefaultValueStringEmpty]
        public string FirstName
        {
            get => this.firstName;
            set => this.firstName = value;
        }
 
        [DefaultValueStringEmpty]
        public string MiddleName
        {
            get => this.middleName;
            set => this.middleName = value;
        }
 
        [DefaultValueStringEmpty]
        public string LastName
        {
            get => this.lastName;
            set => this.lastName = value;
        }
 
        [DefaultValueStringEmpty]
        public string PersonalNumber
        {
            get => this.personalNumber;
            set => this.personalNumber = value;
        }
 
        [DefaultValueStringEmpty]
        public string Address
        {
            get => this.address;
            set => this.address = value;
        }
 
        [DefaultValueStringEmpty]
        public string Address2
        {
            get => this.address2;
            set => this.address2 = value;
        }
 
        [DefaultValueStringEmpty]
        public string PostalCode
        {
            get => this.postalCode;
            set => this.postalCode = value;
        }
 
        [DefaultValueStringEmpty]
        public string Area
        {
            get => this.area;
            set => this.area = value;
        }
 
        [DefaultValueStringEmpty]
        public string City
        {
            get => this.city;
            set => this.city = value;
        }
 
        [DefaultValueStringEmpty]
        public string Region
        {
            get => this.region;
            set => this.region = value;
        }
 
        [DefaultValueStringEmpty]
        public string Country
        {
            get => this.country;
            set => this.country = value;
        }
 
        [DefaultValueStringEmpty]
        public string Nationality
        {
            get => this.nationality;
            set => this.nationality = value;
        }
 
        [DefaultValueStringEmpty]
        public string Gender
        {
            get => this.gender;
            set => this.gender = value;
        }
 
        [DefaultValueNull]
        public DateTime? BirthDate
        {
            get => this.birthDate;
            set => this.birthDate = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgName
        {
            get => this.orgName;
            set => this.orgName = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgDepartment
        {
            get => this.orgDepartment;
            set => this.orgDepartment = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgRole
        {
            get => this.orgRole;
            set => this.orgRole = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgNumber
        {
            get => this.orgNumber;
            set => this.orgNumber = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgAddress
        {
            get => this.orgAddress;
            set => this.orgAddress = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgAddress2
        {
            get => this.orgAddress2;
            set => this.orgAddress2 = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgPostalCode
        {
            get => this.orgPostalCode;
            set => this.orgPostalCode = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgArea
        {
            get => this.orgArea;
            set => this.orgArea = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgCity
        {
            get => this.orgCity;
            set => this.orgCity = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgRegion
        {
            get => this.orgRegion;
            set => this.orgRegion = value;
        }
 
        [DefaultValueStringEmpty]
        public string OrgCountry
        {
            get => this.orgCountry;
            set => this.orgCountry = value;
        }
 
        [DefaultValueNull]
        public AlternativeField[] AlternativeFields
        {
            get => this.altFields;
            set => this.altFields = value;
        }
 
        [DefaultValue(false)]
        public bool ProtectWithPassword
        {
            get => this.protectWithPassword;
            set
            {
                if (this.protectWithPassword != value)
                {
                    if (this.protectWithPassword)
                        Assert.CallFromSource(approvedSources);
 
                    this.protectWithPassword = value;
                }
            }
        }
 
        [DefaultValueNull]
        public AlternativeField[] PasswordHashes
        {
            get
            {
                if (!(this.passwordHashes is null))
                    Assert.CallFromSource(approvedSources);
 
                return this.passwordHashes;
            }
 
            set
            {
                if (!(this.passwordHashes is null))
                    Assert.CallFromSource(approvedSources);
 
                this.passwordHashes = value;
            }
        }
 
        public override string Resource => "/Settings/LegalIdentity.md";
 
        public override int Priority => 320;
 
        public override void SetStaticInstance(ISystemConfiguration Configuration)
        {
            instance = Configuration as LegalIdentityConfiguration;
        }
 
        public override Task<string> Title(Language Language)
        {
            return Language.GetStringAsync(typeof(Gateway), 10, "Legal Identity");
        }
 
        public override async Task ConfigureSystem()
        {
            if (this.useLegalIdentity && !(Gateway.ContractsClient is null))
                await this.AddHandlers();
        }
 
        private async Task AddHandlers()
        {
            if (!this.handlersAdded || Gateway.ContractsClient != this.prevClient)
            {
                this.handlersAdded = true;
                this.prevClient = Gateway.ContractsClient;
 
                Gateway.XmppClient.OnStateChanged += this.XmppClient_OnStateChanged;
 
                Gateway.ContractsClient.ContractDeleted += this.ContractsClient_ContractDeleted;
                Gateway.ContractsClient.ContractSigned += this.ContractsClient_ContractSigned;
                Gateway.ContractsClient.ContractUpdated += this.ContractsClient_ContractUpdated;
                Gateway.ContractsClient.IdentityUpdated += this.ContractsClient_IdentityUpdated;
                Gateway.ContractsClient.PetitionedIdentityResponseReceived += this.ContractsClient_PetitionedIdentityResponseReceived;
                Gateway.ContractsClient.PetitionedContractResponseReceived += this.ContractsClient_PetitionedContractResponseReceived;
 
                Gateway.ContractsClient.SetAllowedSources(approvedContractClientSources);
                ExternalCredential.SetAllowedSources(approvedOtpSources);
 
                if (Gateway.XmppClient.State == XmppState.Connected)
                    await this.GetLegalIdentities(null);
            }
        }
 
        private bool handlersAdded = false;
        private ContractsClient prevClient = null;
 
        private async Task XmppClient_OnStateChanged(object Sender, XmppState NewState)
        {
            if (NewState == XmppState.Connected)
                await this.GetLegalIdentities(null);
        }
 
        private Task GetLegalIdentities(object P)
        {
            if (Gateway.ContractsClient is null || Gateway.XmppClient.State != XmppState.Connected)
                return Task.CompletedTask;
 
            return Gateway.ContractsClient.GetLegalIdentities((Sender, e) =>
            {
                if (e.Ok)
                {
                    approvedIdentities = this.SetLegalIdentities(e.Identities, null, false);
                    allIdentities = this.SetLegalIdentities(e.Identities, null, true);
                }
                else
                    Gateway.ScheduleEvent(this.GetLegalIdentities, DateTime.Now.AddMinutes(1), null);
 
                return Task.CompletedTask;
 
            }, null);
        }
 
        private LegalIdentity[] SetLegalIdentities(LegalIdentity[] Identities, LegalIdentity Changed, bool All)
        {
            List<LegalIdentity> Result = new List<LegalIdentity>();
            LegalIdentity ID2;
            bool Added = false;
 
            if (!(Identities is null))
            {
                foreach (LegalIdentity ID in Identities)
                {
                    if (Changed is null || ID.Id != Changed.Id)
                        ID2 = ID;
                    else
                    {
                        ID2 = Changed;
                        Added = true;
                    }
 
                    if (All || ID2.State == Networking.XMPP.Contracts.IdentityState.Approved)
                        Result.Add(ID2);
                }
            }
 
            if (!Added && !(Changed is null) && (All || Changed.State == Networking.XMPP.Contracts.IdentityState.Approved))
                Result.Add(Changed);
 
            Result.Sort((i1, i2) => Math.Sign((i2.Created - i1.Created).Ticks));
 
            return Result.ToArray();
        }
 
        public static LegalIdentity[] AllIdentities
        {
            get
            {
                Assert.CallFromSource(approvedSources);
                return allIdentities;
            }
        }
 
        public static Dictionary<string, object>[] AllIdentitiesJSON
        {
            get
            {
                List<Dictionary<string, object>> Result = new List<Dictionary<string, object>>();
 
                if (!(allIdentities is null))
                {
                    foreach (LegalIdentity ID in allIdentities)
                    {
                        Dictionary<string, object> ID2 = new Dictionary<string, object>()
                        {
                            { "Id", ID.Id },
                            { "Created", ID.Created },
                            { "Properties", ID.Properties },
                            { "Attachments", ID.Attachments },
                            { "From", ID.From },
                            { "To", ID.To },
                            { "State", ID.State },
                            { PersonalInformation.AddressTag, string.Empty },
                            { PersonalInformation.Address2Tag, string.Empty },
                            { PersonalInformation.PostalCodeTag, string.Empty },
                            { PersonalInformation.AreaTag, string.Empty },
                            { PersonalInformation.CityTag, string.Empty },
                            { PersonalInformation.RegionTag, string.Empty },
                            { PersonalInformation.CountryTag, string.Empty },
                            { PersonalInformation.NationalityTag, string.Empty },
                            { PersonalInformation.GenderTag, string.Empty },
                            { PersonalInformation.BirthDayTag, string.Empty },
                            { PersonalInformation.BirthMonthTag, string.Empty },
                            { PersonalInformation.BirthYearTag, string.Empty },
                            { PersonalInformation.PersonalNumberTag, string.Empty },
                            { PersonalInformation.OrganizationAddressTag, string.Empty },
                            { PersonalInformation.OrganizationAddress2Tag, string.Empty },
                            { PersonalInformation.OrganizationPostalCodeTag, string.Empty },
                            { PersonalInformation.OrganizationAreaTag, string.Empty },
                            { PersonalInformation.OrganizationCityTag, string.Empty },
                            { PersonalInformation.OrganizationRegionTag, string.Empty },
                            { PersonalInformation.OrganizationCountryTag, string.Empty },
                            { PersonalInformation.OrganizationNameTag, string.Empty },
                            { PersonalInformation.OrganizationDepartmentTag, string.Empty },
                            { PersonalInformation.OrganizationRoleTag, string.Empty },
                            { PersonalInformation.OrganizationNumberTag, string.Empty },
                            { "", string.Empty }
                        };
 
                        foreach (Property P in ID.Properties)
                            ID2[P.Name] = P.Value;
 
                        ID2[PersonalInformation.FirstNameTag] = ID[PersonalInformation.FirstNameTag];
                        ID2[PersonalInformation.MiddleNamesTag] = ID[PersonalInformation.MiddleNamesTag];
                        ID2[PersonalInformation.LastNamesTag] = ID[PersonalInformation.LastNamesTag];
                        ID2[PersonalInformation.FullNameTag] = ID[PersonalInformation.FullNameTag];
 
                        Result.Add(ID2);
                    }
                }
 
                return Result.ToArray();
            }
        }
 
        public static LegalIdentity[] ApprovedIdentities
        {
            get
            {
                Assert.CallFromSource(approvedSources);
                return approvedIdentities;
            }
        }
 
        public static bool IsMe(CaseInsensitiveString LegalId)
        {
            return TryGetMyIdentity(LegalId, out _);
        }
 
        public static bool TryGetMyIdentity(CaseInsensitiveString LegalId, out LegalIdentity Identity)
        {
            Identity = null;
 
            if (allIdentities is null)
                return false;
 
            foreach (LegalIdentity ID in allIdentities)
            {
                if (LegalId == ID.Id)
                {
                    Identity = ID;
                    return true;
                }
            }
 
            return false;
        }
 
        public static bool IsMeApproved(CaseInsensitiveString LegalId)
        {
            if (approvedIdentities is null)
                return false;
 
            foreach (LegalIdentity ID in approvedIdentities)
            {
                if (LegalId == ID.Id)
                    return true;
            }
 
            return false;
        }
 
        private async Task ContractsClient_IdentityUpdated(object Sender, LegalIdentityEventArgs e)
        {
            LegalIdentity ID = e.Identity;
 
            List<KeyValuePair<string, object>> Tags = new List<KeyValuePair<string, object>>()
            {
                new KeyValuePair<string, object>("State", ID.State),
                new KeyValuePair<string, object>("Provider", ID.Provider),
                new KeyValuePair<string, object>("Created", ID.Created),
                new KeyValuePair<string, object>("Updated", ID.Updated),
                new KeyValuePair<string, object>("From", ID.From),
                new KeyValuePair<string, object>("KeyAlgorithm", ID.ClientKeyName),
                new KeyValuePair<string, object>("PublicKey", Convert.ToBase64String(ID.ClientPubKey))
            };
 
            foreach (Property P in ID.Properties)
                Tags.Add(new KeyValuePair<string, object>(P.Name, P.Value));
 
            Log.Notice("Legal Identity updated.", e.Identity.Id, Tags.ToArray());
 
            await this.UpdateClients(ID);
        }
 
        private Task UpdateClients(LegalIdentity ID)
        {
            allIdentities = this.SetLegalIdentities(allIdentities, ID, true);
            approvedIdentities = this.SetLegalIdentities(approvedIdentities, ID, false);
 
            return this.UpdateClients();
        }
 
        private async Task UpdateClients()
        {
            string[] TabIDs;
 
            if (Gateway.Configuring)
                TabIDs = ClientEvents.GetTabIDs();
            else
                TabIDs = ClientEvents.GetTabIDsForLocation("/Settings/LegalIdentity.md");
 
            if (TabIDs.Length > 0)
            {
                string FileName = Path.Combine(Gateway.RootFolder, "Settings", "LegalIdentities.md");
                if (File.Exists(FileName))
                {
                    string Markdown = await Files.ReadAllTextAsync(FileName);
                    Variables v = HttpServer.CreateSessionVariables();
                    v["Config"] = this;
 
                    MarkdownDocument Doc = await MarkdownDocument.CreateAsync(Markdown, new MarkdownSettings(Gateway.Emoji1_24x24, true, v));
                    string HTML = await Doc.GenerateHTML();
                    HTML = HtmlDocument.GetBody(HTML);
 
                    await ClientEvents.PushEvent(TabIDs, "UpdateIdentityTable", HTML);
                }
            }
        }
 
        private Task ContractsClient_ContractSigned(object Sender, ContractSignedEventArgs e)
        {
            Log.Notice("Smart contract signed.", e.ContractId, e.LegalId, new KeyValuePair<string, object>("Role", e.Role));
            return Task.CompletedTask;
        }
 
        private Task ContractsClient_ContractUpdated(object Sender, ContractReferenceEventArgs e)
        {
            Log.Notice("Smart contract updated.", e.ContractId);
            return Task.CompletedTask;
        }
 
        private Task ContractsClient_ContractDeleted(object Sender, ContractReferenceEventArgs e)
        {
            Log.Notice("Smart contract deleted.", e.ContractId);
            return Task.CompletedTask;
        }
 
        public override Task InitSetup(HttpServer WebServer)
        {
            this.applyLegalIdentity = WebServer.Register("/Settings/ApplyLegalIdentity", null, this.ApplyLegalIdentity, true, false, true);
            this.contractAction = WebServer.Register("/Settings/ContractAction", null, this.ContractAction, true, false, true);
 
            this.checkApprovedExpiry = Gateway.ScheduleEvent(this.CheckApprovedExpiry, DateTime.Now.AddMinutes(5), true);
 
            return base.InitSetup(WebServer);
        }
 
        public override Task UnregisterSetup(HttpServer WebServer)
        {
            WebServer.Unregister(this.applyLegalIdentity);
            WebServer.Unregister(this.contractAction);
 
            Gateway.CancelScheduledEvent(this.checkApprovedExpiry);
            this.checkApprovedExpiry = DateTime.MinValue;
 
            return base.UnregisterSetup(WebServer);
        }
 
        private async Task CheckApprovedExpiry(object State)
        {
            if (!(State is bool Reschedule))
                Reschedule = false;
 
            DateTime Now = DateTime.Now;
            DateTime Today = Now.Date;
 
            if (Reschedule)
                this.checkApprovedExpiry = Gateway.ScheduleEvent(this.CheckApprovedExpiry, Today.AddDays(1).AddMinutes(5), true);
 
            if (!this.useLegalIdentity)
                return;
 
            if (Gateway.XmppClient.State != XmppState.Connected)
            {
                Gateway.ScheduleEvent(this.CheckApprovedExpiry, Now.AddMinutes(5), false);
                return;
            }
 
            DateTime Expires = LatestApprovedLegalIdentityExpires;
            if (Expires < Now)
            {
                await Gateway.SendNotification("No approved Legal Identity registered for the gateway.", string.Empty);
                return;
            }
 
            int Days = (int)(Expires - Today).TotalDays;
 
            if (Days < 60)
            {
                switch (Days)
                {
                    case 0:
                        await Gateway.SendNotification("The approved Legal Identity for the gateway **expires today**.", string.Empty);
                        return;
 
                    case 1:
                        await Gateway.SendNotification("The approved Legal Identity for the gateway **expires tomorrow**.", string.Empty);
                        return;
 
                    default:
                        await Gateway.SendNotification("The approved Legal Identity for the gateway **expires in " + Days.ToString() + " days**.", string.Empty);
                        return;
                }
            }
        }
 
        public override async Task<bool> SetupConfiguration(HttpServer WebServer)
        {
            if (!this.Complete &&
                Gateway.XmppClient.State == XmppState.Offline &&
                !(Gateway.XmppClient is null))
            {
                await Gateway.XmppClient.Connect();
            }
 
            await this.AddHandlers();
 
            return await base.SetupConfiguration(WebServer);
        }
 
        protected override string ConfigPrivilege => "Admin.Legal.ID";
 
        private async Task ApplyLegalIdentity(HttpRequest Request, HttpResponse Response)
        {
            Gateway.AssertUserAuthenticated(Request, this.ConfigPrivilege);
 
            if (!Request.HasData)
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            ContentResponse Content = await Request.DecodeDataAsync();
            if (Content.HasError || !(Content.Decoded is Dictionary<string, object> Parameters))
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            if (!Parameters.TryGetValue("protectWithPassword", out object Obj) || !(Obj is bool ProtectWithPassword) ||
                !Parameters.TryGetValue("password", out Obj) || !(Obj is string Password) ||
                !Parameters.TryGetValue("password2", out Obj) || !(Obj is string Password2) ||
                !Parameters.TryGetValue("firstName", out Obj) || !(Obj is string FirstName) ||
                !Parameters.TryGetValue("middleName", out Obj) || !(Obj is string MiddleName) ||
                !Parameters.TryGetValue("lastName", out Obj) || !(Obj is string LastName) ||
                !Parameters.TryGetValue("pNr", out Obj) || !(Obj is string PNr) ||
                !Parameters.TryGetValue("address", out Obj) || !(Obj is string Address) ||
                !Parameters.TryGetValue("address2", out Obj) || !(Obj is string Address2) ||
                !Parameters.TryGetValue("postalCode", out Obj) || !(Obj is string PostalCode) ||
                !Parameters.TryGetValue("area", out Obj) || !(Obj is string Area) ||
                !Parameters.TryGetValue("city", out Obj) || !(Obj is string City) ||
                !Parameters.TryGetValue("region", out Obj) || !(Obj is string Region) ||
                !Parameters.TryGetValue("country", out Obj) || !(Obj is string Country) ||
                !Parameters.TryGetValue("nationality", out Obj) || !(Obj is string Nationality) ||
                !Parameters.TryGetValue("gender", out Obj) || !(Obj is string Gender) ||
                !Parameters.TryGetValue("birthDate", out Obj) || !(Obj is string BirthDateStr) ||
                !Parameters.TryGetValue("orgName", out Obj) || !(Obj is string OrgName) ||
                !Parameters.TryGetValue("orgDepartment", out Obj) || !(Obj is string OrgDepartment) ||
                !Parameters.TryGetValue("orgRole", out Obj) || !(Obj is string OrgRole) ||
                !Parameters.TryGetValue("orgNr", out Obj) || !(Obj is string OrgNr) ||
                !Parameters.TryGetValue("orgAddress", out Obj) || !(Obj is string OrgAddress) ||
                !Parameters.TryGetValue("orgAddress2", out Obj) || !(Obj is string OrgAddress2) ||
                !Parameters.TryGetValue("orgPostalCode", out Obj) || !(Obj is string OrgPostalCode) ||
                !Parameters.TryGetValue("orgArea", out Obj) || !(Obj is string OrgArea) ||
                !Parameters.TryGetValue("orgCity", out Obj) || !(Obj is string OrgCity) ||
                !Parameters.TryGetValue("orgRegion", out Obj) || !(Obj is string OrgRegion) ||
                !Parameters.TryGetValue("orgCountry", out Obj) || !(Obj is string OrgCountry))
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            if (ProtectWithPassword)
            {
                if (string.IsNullOrEmpty(Password))
                {
                    await Response.SendResponse(new BadRequestException("Enter a password and try again."));
                    return;
                }
 
                if (Password != Password2)
                {
                    await Response.SendResponse(new BadRequestException("Passwords do not match. Retype, and try again."));
                    return;
                }
            }
 
            List<AlternativeField> AlternativeFields = new List<AlternativeField>();
 
            if (Parameters.TryGetValue("alternative", out Obj) && Obj is Dictionary<string, object> Alternative)
            {
                foreach (KeyValuePair<string, object> P in Alternative)
                {
                    switch (P.Key.ToUpper())
                    {
                        case PersonalInformation.FirstNameTag:
                        case PersonalInformation.MiddleNamesTag:
                        case PersonalInformation.LastNamesTag:
                        case PersonalInformation.PersonalNumberTag:
                        case PersonalInformation.AddressTag:
                        case PersonalInformation.Address2Tag:
                        case PersonalInformation.PostalCodeTag:
                        case PersonalInformation.AreaTag:
                        case PersonalInformation.CityTag:
                        case PersonalInformation.RegionTag:
                        case PersonalInformation.CountryTag:
                        case PersonalInformation.NationalityTag:
                        case PersonalInformation.GenderTag:
                        case PersonalInformation.BirthDayTag:
                        case PersonalInformation.BirthMonthTag:
                        case PersonalInformation.BirthYearTag:
                        case PersonalInformation.OrganizationNameTag:
                        case PersonalInformation.OrganizationDepartmentTag:
                        case PersonalInformation.OrganizationRoleTag:
                        case PersonalInformation.OrganizationNumberTag:
                        case PersonalInformation.OrganizationAddressTag:
                        case PersonalInformation.OrganizationAddress2Tag:
                        case PersonalInformation.OrganizationPostalCodeTag:
                        case PersonalInformation.OrganizationAreaTag:
                        case PersonalInformation.OrganizationCityTag:
                        case PersonalInformation.OrganizationRegionTag:
                        case PersonalInformation.OrganizationCountryTag:
                            await Response.SendResponse(new BadRequestException("The following alternative field name is not allowed: " + P.Key));
                            return;
 
                        default:
                            AlternativeFields.Add(new AlternativeField(P.Key, P.Value.ToString()));
                            break;
                    }
                }
            }
 
            string TabID = Request.Header["X-TabID"];
            if (string.IsNullOrEmpty(TabID))
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            if (!string.IsNullOrEmpty(BirthDateStr))
            {
                if (!DateTime.TryParse(BirthDateStr, out DateTime BirthDate))
                {
                    await Response.SendResponse(new BadRequestException("Invalid birth date."));
                    return;
                }
 
                this.birthDate = BirthDate;
            }
            else
                this.birthDate = null;
 
            this.useLegalIdentity = true;
            this.firstName = FirstName;
            this.middleName = MiddleName;
            this.lastName = LastName;
            this.personalNumber = PNr;
            this.address = Address;
            this.address2 = Address2;
            this.postalCode = PostalCode;
            this.area = Area;
            this.city = City;
            this.region = Region;
            this.country = Country;
            this.nationality = Nationality;
            this.gender = Gender;
            this.orgName = OrgName;
            this.orgDepartment = OrgDepartment;
            this.orgRole = OrgRole;
            this.orgNumber = OrgNr;
            this.orgAddress = OrgAddress;
            this.orgAddress2 = OrgAddress2;
            this.orgPostalCode = OrgPostalCode;
            this.orgArea = OrgArea;
            this.orgCity = OrgCity;
            this.orgRegion = OrgRegion;
            this.orgCountry = OrgCountry;
            this.altFields = AlternativeFields.ToArray();
 
            await Database.Update(this);
 
            Response.StatusCode = 200;
            Response.StatusMessage = "OK";
 
            await this.ApplyId(Password, TabID, ProtectWithPassword, false, null);
        }
 
        public Task Reapply(TaskCompletionSource<bool> Response)
        {
            return this.ApplyId(null, null, false, true, Response);
        }
 
        internal async Task ApplyId(string Password, string TabID, bool ProtectWithPassword, 
            bool Reapplication, TaskCompletionSource<bool> Response)
        {
            await Gateway.ContractsClient.GenerateNewKeys();
            await Gateway.ContractsClient.Apply(this.GetProperties(), this.ApplyResponse,
                new object[] { Password, TabID, ProtectWithPassword, Reapplication, Response });
        }
 
        private async Task ApplyResponse(object Sender, LegalIdentityEventArgs e)
        {
            object[] P = (object[])e.State;
            string Password = (string)P[0];
            string TabID = (string)P[1];
            bool ProtectWithPassword = (bool)P[2];
            bool Reapplication = (bool)P[3];
            TaskCompletionSource<bool> Response = (TaskCompletionSource<bool>)P[4];
 
            if (e.Ok)
            {
                if (!Reapplication)
                {
                    this.protectWithPassword = ProtectWithPassword;
 
                    if (ProtectWithPassword)
                    {
                        Dictionary<string, AlternativeField> ById = new Dictionary<string, AlternativeField>();
 
                        if (!(this.passwordHashes is null))
                        {
                            foreach (AlternativeField H in this.passwordHashes)
                                ById[H.Key] = H;
                        }
 
                        ById[e.Identity.Id] = new AlternativeField(e.Identity.Id, this.CalcPasswordHash(e.Identity, Password));
 
                        AlternativeField[] Hashes = new AlternativeField[ById.Count];
                        ById.Values.CopyTo(Hashes, 0);
 
                        this.passwordHashes = Hashes;
                    }
 
                    this.Step = 1;
                    await Database.Update(this);
 
                    if (!string.IsNullOrEmpty(TabID))
                        await ClientEvents.PushEvent(new string[] { TabID }, "ApplicationOK", string.Empty);
                }
 
                await this.UpdateClients(e.Identity);
 
                Response?.TrySetResult(true);
            }
            else
            {
                if (!string.IsNullOrEmpty(TabID))
                    await ClientEvents.PushEvent(new string[] { TabID }, "ApplicationError", e.ErrorText);
 
                Response?.TrySetResult(false);
            }
        }
 
        private string CalcPasswordHash(LegalIdentity ID, string Password)
        {
            StringBuilder sb = new StringBuilder();
            SortedDictionary<string, string> Sorted = new SortedDictionary<string, string>();
 
            foreach (Property P in ID.Properties)
            {
                if (Sorted.TryGetValue(P.Name, out string s))
                {
                    s += ";" + P.Value;
                    Sorted[P.Name] = s;
                }
                else
                    Sorted[P.Name] = P.Value;
            }
 
            bool First = true;
 
            foreach (KeyValuePair<string, string> P in Sorted)
            {
                if (First)
                    First = false;
                else
                    sb.Append(',');
 
                sb.Append(P.Key);
                sb.Append('=');
                sb.Append(P.Value);
            }
 
            byte[] Digest = Hashes.ComputeHMACSHA256Hash(System.Text.Encoding.UTF8.GetBytes(Password), System.Text.Encoding.UTF8.GetBytes(sb.ToString()));
 
            return Convert.ToBase64String(Digest);
        }
 
        private Property[] GetProperties()
        {
            List<Property> Properties = new List<Property>();
 
            if (!string.IsNullOrEmpty(this.firstName))
                Properties.Add(new Property(PersonalInformation.FirstNameTag, this.firstName));
 
            if (!string.IsNullOrEmpty(this.middleName))
                Properties.Add(new Property(PersonalInformation.MiddleNamesTag, this.middleName));
 
            if (!string.IsNullOrEmpty(this.lastName))
                Properties.Add(new Property(PersonalInformation.LastNamesTag, this.lastName));
 
            if (!string.IsNullOrEmpty(this.personalNumber))
                Properties.Add(new Property(PersonalInformation.PersonalNumberTag, this.personalNumber));
 
            if (!string.IsNullOrEmpty(this.address))
                Properties.Add(new Property(PersonalInformation.AddressTag, this.address));
 
            if (!string.IsNullOrEmpty(this.address2))
                Properties.Add(new Property(PersonalInformation.Address2Tag, this.address2));
 
            if (!string.IsNullOrEmpty(this.postalCode))
                Properties.Add(new Property(PersonalInformation.PostalCodeTag, this.postalCode));
 
            if (!string.IsNullOrEmpty(this.area))
                Properties.Add(new Property(PersonalInformation.AreaTag, this.area));
 
            if (!string.IsNullOrEmpty(this.city))
                Properties.Add(new Property(PersonalInformation.CityTag, this.city));
 
            if (!string.IsNullOrEmpty(this.region))
                Properties.Add(new Property(PersonalInformation.RegionTag, this.region));
 
            if (!string.IsNullOrEmpty(this.country))
                Properties.Add(new Property(PersonalInformation.CountryTag, this.country));
 
            if (!string.IsNullOrEmpty(this.nationality))
                Properties.Add(new Property(PersonalInformation.NationalityTag, this.nationality));
 
            if (!string.IsNullOrEmpty(this.gender))
                Properties.Add(new Property(PersonalInformation.GenderTag, this.gender));
 
            if (!(this.birthDate is null))
            {
                Properties.Add(new Property(PersonalInformation.BirthDayTag, this.birthDate.Value.Day.ToString()));
                Properties.Add(new Property(PersonalInformation.BirthMonthTag, this.birthDate.Value.Month.ToString()));
                Properties.Add(new Property(PersonalInformation.BirthYearTag, this.birthDate.Value.Year.ToString()));
            }
 
            if (!string.IsNullOrEmpty(this.orgName))
                Properties.Add(new Property(PersonalInformation.OrganizationNameTag, this.orgName));
 
            if (!string.IsNullOrEmpty(this.orgDepartment))
                Properties.Add(new Property(PersonalInformation.OrganizationDepartmentTag, this.orgDepartment));
 
            if (!string.IsNullOrEmpty(this.orgRole))
                Properties.Add(new Property(PersonalInformation.OrganizationRoleTag, this.orgRole));
 
            if (!string.IsNullOrEmpty(this.orgNumber))
                Properties.Add(new Property(PersonalInformation.OrganizationNumberTag, this.orgNumber));
 
            if (!string.IsNullOrEmpty(this.orgAddress))
                Properties.Add(new Property(PersonalInformation.OrganizationAddressTag, this.orgAddress));
 
            if (!string.IsNullOrEmpty(this.orgAddress2))
                Properties.Add(new Property(PersonalInformation.OrganizationAddress2Tag, this.orgAddress2));
 
            if (!string.IsNullOrEmpty(this.orgPostalCode))
                Properties.Add(new Property(PersonalInformation.OrganizationPostalCodeTag, this.orgPostalCode));
 
            if (!string.IsNullOrEmpty(this.orgArea))
                Properties.Add(new Property(PersonalInformation.OrganizationAreaTag, this.orgArea));
 
            if (!string.IsNullOrEmpty(this.orgCity))
                Properties.Add(new Property(PersonalInformation.OrganizationCityTag, this.orgCity));
 
            if (!string.IsNullOrEmpty(this.orgRegion))
                Properties.Add(new Property(PersonalInformation.OrganizationRegionTag, this.orgRegion));
 
            if (!string.IsNullOrEmpty(this.orgCountry))
                Properties.Add(new Property(PersonalInformation.OrganizationCountryTag, this.orgCountry));
 
            if (!(this.altFields is null))
            {
                foreach (AlternativeField F in this.altFields)
                    Properties.Add(new Property(F.Key, F.Value));
            }
 
            return Properties.ToArray();
        }
 
        private async Task ContractAction(HttpRequest Request, HttpResponse Response)
        {
            Gateway.AssertUserAuthenticated(Request, this.ConfigPrivilege);
 
            if (!Request.HasData)
            {
                await Response.SendResponse(new BadRequestException("No content."));
                return;
            }
 
            string Password;
            ContentResponse Content = await Request.DecodeDataAsync();
            if (Content.HasError || !(Content.Decoded is Dictionary<string, object> Parameters))
            {
                await Response.SendResponse(new UnsupportedMediaTypeException("Invalid content."));
                return;
            }
 
            if (!Parameters.TryGetValue("requestId", out object Obj) || !(Obj is string RequestId) ||
                !Parameters.TryGetValue("sign", out Obj) || !(Obj is bool Sign) ||
                !Parameters.TryGetValue("protect", out Obj) || !(Obj is bool Protect))
            {
                await Response.SendResponse(new BadRequestException("Invalid request."));
                return;
            }
 
            if (Protect)
            {
                if (!Parameters.TryGetValue("password", out Obj) || !(Obj is string s))
                {
                    await Response.SendResponse(new BadRequestException("No password."));
                    return;
                }
 
                Password = s;
            }
            else
                Password = string.Empty;
 
            ContractSignatureRequest SignatureRequest = await Database.TryLoadObject<ContractSignatureRequest>(RequestId);
            if (SignatureRequest is null)
            {
                await Response.SendResponse(new NotFoundException("Content Signature Request not found."));
                return;
            }
 
            if (SignatureRequest.Signed.HasValue)
            {
                await Response.SendResponse(new BadRequestException("Contract has already been signed."));
                return;
            }
 
            if (Protect)
            {
                if (!HasApprovedLegalIdentities)
                {
                    await Response.SendResponse(new BadRequestException("No approved legal identity found with which to sign the contract."));
                    return;
                }
 
                string Id = this.GetPasswordLegalId(Password);
                if (string.IsNullOrEmpty(Id))
                {
                    await Response.SendResponse(new BadRequestException("Invalid password."));
                    return;
                }
            }
            else if (this.protectWithPassword)
            {
                await Response.SendResponse(new BadRequestException("Legal identities protected with password."));
                return;
            }
 
            if (Sign)
            {
                Contract Contract = await SignatureRequest.GetContract();
                Contract = await Gateway.ContractsClient.SignContractAsync(Contract, SignatureRequest.Role, false);
                SignatureRequest.SetContract(Contract);
                SignatureRequest.Signed = DateTime.Now;
                await Database.Update(SignatureRequest);
            }
            else
                await Database.Delete(SignatureRequest);
 
            Response.StatusCode = 200;
            Response.StatusMessage = "OK";
            Response.ContentType = JsonCodec.DefaultContentType;
            await Response.Write(JSON.Encode(Sign, false));
            await Response.SendResponse();
        }
 
        public static bool HasApprovedLegalIdentities
        {
            get => !(approvedIdentities is null) && approvedIdentities.Length > 0;
        }
 
        public static LegalIdentity LatestApprovedLegalIdentity
        {
            get
            {
                if (!HasApprovedLegalIdentities)
                    throw new NotFoundException("Gateway has no approved legal identity.");
 
                LegalIdentity Latest = null;
 
                foreach (LegalIdentity Identity in approvedIdentities)
                {
                    if (Latest is null || Identity.Created > Latest.Created)
                        Latest = Identity;
                }
 
                return Latest;
            }
        }
 
        public static string LatestApprovedLegalIdentityId
        {
            get
            {
                return LatestApprovedLegalIdentity?.Id;
            }
        }
 
        public static DateTime LatestApprovedLegalIdentityExpires
        {
            get
            {
                if (!HasApprovedLegalIdentities)
                    return DateTime.MinValue;
 
                return LatestApprovedLegalIdentity?.To ?? DateTime.MinValue;
            }
        }
 
        public string GetPasswordLegalId(string Password)
        {
            if (approvedIdentities is null || approvedIdentities.Length == 0)
                return null;
 
            foreach (LegalIdentity ID in approvedIdentities)
            {
                string H = this.CalcPasswordHash(ID, Password);
 
                foreach (AlternativeField F in this.passwordHashes)
                {
                    if (F.Key == ID.Id)
                    {
                        if (F.Value == H)
                            return F.Key;
 
                        break;
                    }
                }
            }
 
            return null;
        }
 
        public Task<bool> PetitionLegalIdentity(string LegalId, string PetitionId, string Purpose,
            EventHandlerAsync<LegalIdentityPetitionResponseEventArgs> Callback, TimeSpan Timeout,
            HttpRequest Request)
        {
            if (this.protectWithPassword)
                throw new ForbiddenException(Request, "Petitioning legal identities is protected using passwords on this machine.");
 
            return this.PetitionLegalIdentity(LegalId, PetitionId, Purpose, string.Empty, Callback, Timeout);
        }
 
        public async Task<bool> PetitionLegalIdentity(string LegalId, string PetitionId, string Purpose, string Password,
            EventHandlerAsync<LegalIdentityPetitionResponseEventArgs> Callback, TimeSpan Timeout)
        {
            if (!HasApprovedLegalIdentities)
                return false;
 
            if (this.protectWithPassword)
            {
                string Id = this.GetPasswordLegalId(Password);
                if (string.IsNullOrEmpty(Id))
                    return false;
            }
 
            lock (this.identityPetitionCallbackMethods)
            {
                if (this.identityPetitionCallbackMethods.ContainsKey(PetitionId))
                    throw new ArgumentException("Petition ID already used.", nameof(PetitionId));
 
                this.identityPetitionCallbackMethods[PetitionId] = Callback;
            }
 
            try
            {
                await Gateway.ContractsClient.PetitionIdentityAsync(LegalId, PetitionId, Purpose);
 
                Gateway.ScheduleEvent((P) =>
                {
                    LegalIdentityPetitionResponseEventArgs e = new LegalIdentityPetitionResponseEventArgs(null, null, (string)P, false, string.Empty, null);
                    this.ContractsClient_PetitionedIdentityResponseReceived(Gateway.ContractsClient, e);
                }, DateTime.Now.Add(Timeout), PetitionId);
            }
            catch (Exception ex)
            {
                lock (this.identityPetitionCallbackMethods)
                {
                    this.identityPetitionCallbackMethods.Remove(PetitionId);
                }
 
                ExceptionDispatchInfo.Capture(ex).Throw();
            }
 
            return true;
        }
 
        public Task<bool> PetitionContract(string ContractId, string PetitionId, string Purpose,
            EventHandlerAsync<ContractPetitionResponseEventArgs> Callback, TimeSpan Timeout,
            HttpRequest Request)
        {
            if (this.protectWithPassword)
                throw new ForbiddenException(Request, "Petitioning legal identities is protected using passwords on this machine.");
 
            return this.PetitionContract(ContractId, PetitionId, Purpose, string.Empty, Callback, Timeout);
        }
 
        public async Task<bool> PetitionContract(string ContractId, string PetitionId, string Purpose, string Password,
            EventHandlerAsync<ContractPetitionResponseEventArgs> Callback, TimeSpan Timeout)
        {
            if (!HasApprovedLegalIdentities)
                return false;
 
            if (this.protectWithPassword)
            {
                string Id = this.GetPasswordLegalId(Password);
                if (string.IsNullOrEmpty(Id))
                    return false;
            }
 
            lock (this.contractPetitionCallbackMethods)
            {
                if (this.contractPetitionCallbackMethods.ContainsKey(PetitionId))
                    throw new ArgumentException("Petition ID already used.", nameof(PetitionId));
 
                this.contractPetitionCallbackMethods[PetitionId] = Callback;
            }
 
            try
            {
                await Gateway.ContractsClient.PetitionContractAsync(ContractId, PetitionId, Purpose);
 
                Gateway.ScheduleEvent((P) =>
                {
                    ContractPetitionResponseEventArgs e = new ContractPetitionResponseEventArgs(null, null, (string)P, false, string.Empty, null);
                    this.ContractsClient_PetitionedContractResponseReceived(Gateway.ContractsClient, e);
                }, DateTime.Now.Add(Timeout), PetitionId);
            }
            catch (Exception ex)
            {
                lock (this.contractPetitionCallbackMethods)
                {
                    this.contractPetitionCallbackMethods.Remove(PetitionId);
                }
 
                ExceptionDispatchInfo.Capture(ex).Throw();
            }
 
            return true;
        }
 
        private readonly Dictionary<string, EventHandlerAsync<LegalIdentityPetitionResponseEventArgs>> identityPetitionCallbackMethods = new Dictionary<string, EventHandlerAsync<LegalIdentityPetitionResponseEventArgs>>();
        private readonly Dictionary<string, EventHandlerAsync<ContractPetitionResponseEventArgs>> contractPetitionCallbackMethods = new Dictionary<string, EventHandlerAsync<ContractPetitionResponseEventArgs>>();
 
        private Task ContractsClient_PetitionedIdentityResponseReceived(object Sender, LegalIdentityPetitionResponseEventArgs e)
        {
            EventHandlerAsync<LegalIdentityPetitionResponseEventArgs> Callback;
            string PetitionId = e.PetitionId;
 
            lock (this.identityPetitionCallbackMethods)
            {
                if (!this.identityPetitionCallbackMethods.TryGetValue(PetitionId, out Callback))
                    return Task.CompletedTask;
                else
                    this.identityPetitionCallbackMethods.Remove(PetitionId);
            }
 
            return Callback.Raise(Sender, e);
        }
 
        private Task ContractsClient_PetitionedContractResponseReceived(object Sender, ContractPetitionResponseEventArgs e)
        {
            EventHandlerAsync<ContractPetitionResponseEventArgs> Callback;
            string PetitionId = e.PetitionId;
 
            lock (this.contractPetitionCallbackMethods)
            {
                if (!this.contractPetitionCallbackMethods.TryGetValue(PetitionId, out Callback))
                    return Task.CompletedTask;
                else
                    this.contractPetitionCallbackMethods.Remove(PetitionId);
            }
 
            return Callback.Raise(Sender, e);
        }
 
        public override Task<bool> SimplifiedConfiguration()
        {
            return Task.FromResult(true);
        }
 
        public const string GATEWAY_ID_USE = nameof(GATEWAY_ID_USE);
 
        public const string GATEWAY_ID_FIRST = nameof(GATEWAY_ID_FIRST);
 
        public const string GATEWAY_ID_MIDDLE = nameof(GATEWAY_ID_MIDDLE);
 
        public const string GATEWAY_ID_LAST = nameof(GATEWAY_ID_LAST);
 
        public const string GATEWAY_ID_PNR = nameof(GATEWAY_ID_PNR);
 
        public const string GATEWAY_ID_ADDR = nameof(GATEWAY_ID_ADDR);
 
        public const string GATEWAY_ID_ADDR2 = nameof(GATEWAY_ID_ADDR2);
 
        public const string GATEWAY_ID_ZIP = nameof(GATEWAY_ID_ZIP);
 
        public const string GATEWAY_ID_AREA = nameof(GATEWAY_ID_AREA);
 
        public const string GATEWAY_ID_CITY = nameof(GATEWAY_ID_CITY);
 
        public const string GATEWAY_ID_REGION = nameof(GATEWAY_ID_REGION);
 
        public const string GATEWAY_ID_COUNTRY = nameof(GATEWAY_ID_COUNTRY);
 
        public const string GATEWAY_ID_NATIONALITY = nameof(GATEWAY_ID_NATIONALITY);
 
        public const string GATEWAY_ID_GENDER = nameof(GATEWAY_ID_GENDER);
 
        public const string GATEWAY_ID_BDATE = nameof(GATEWAY_ID_BDATE);
 
        public const string GATEWAY_ID_ORGNAME = nameof(GATEWAY_ID_ORGNAME);
 
        public const string GATEWAY_ID_ORGDEPT = nameof(GATEWAY_ID_ORGDEPT);
 
        public const string GATEWAY_ID_ORGROLE = nameof(GATEWAY_ID_ORGROLE);
 
        public const string GATEWAY_ID_ORGNR = nameof(GATEWAY_ID_ORGNR);
 
        public const string GATEWAY_ID_ORGADDR = nameof(GATEWAY_ID_ORGADDR);
 
        public const string GATEWAY_ID_ORGADDR2 = nameof(GATEWAY_ID_ORGADDR2);
 
        public const string GATEWAY_ID_ORGZIP = nameof(GATEWAY_ID_ORGZIP);
 
        public const string GATEWAY_ID_ORGAREA = nameof(GATEWAY_ID_ORGAREA);
 
        public const string GATEWAY_ID_ORGCITY = nameof(GATEWAY_ID_ORGCITY);
 
        public const string GATEWAY_ID_ORGREGION = nameof(GATEWAY_ID_ORGREGION);
 
        public const string GATEWAY_ID_ORGCOUNTRY = nameof(GATEWAY_ID_ORGCOUNTRY);
 
        public const string GATEWAY_ID_ALT = nameof(GATEWAY_ID_ALT);
 
        public const string GATEWAY_ID_ALT_ = nameof(GATEWAY_ID_ALT_);
 
        public const string GATEWAY_ID_PASSWORD = nameof(GATEWAY_ID_PASSWORD);
 
        public override async Task<bool> EnvironmentConfiguration()
        {
            if (!this.TryGetEnvironmentVariable(GATEWAY_ID_USE, false, out this.useLegalIdentity))
                return false;
 
            if (!this.useLegalIdentity)
                return true;
 
            this.firstName = Environment.GetEnvironmentVariable(GATEWAY_ID_FIRST) ?? string.Empty;
            this.middleName = Environment.GetEnvironmentVariable(GATEWAY_ID_MIDDLE) ?? string.Empty;
            this.lastName = Environment.GetEnvironmentVariable(GATEWAY_ID_LAST) ?? string.Empty;
            this.personalNumber = Environment.GetEnvironmentVariable(GATEWAY_ID_PNR) ?? string.Empty;
            this.address = Environment.GetEnvironmentVariable(GATEWAY_ID_ADDR) ?? string.Empty;
            this.address2 = Environment.GetEnvironmentVariable(GATEWAY_ID_ADDR2) ?? string.Empty;
            this.postalCode = Environment.GetEnvironmentVariable(GATEWAY_ID_ZIP) ?? string.Empty;
            this.area = Environment.GetEnvironmentVariable(GATEWAY_ID_AREA) ?? string.Empty;
            this.city = Environment.GetEnvironmentVariable(GATEWAY_ID_CITY) ?? string.Empty;
            this.region = Environment.GetEnvironmentVariable(GATEWAY_ID_REGION) ?? string.Empty;
            this.country = Environment.GetEnvironmentVariable(GATEWAY_ID_COUNTRY) ?? string.Empty;
            this.nationality = Environment.GetEnvironmentVariable(GATEWAY_ID_NATIONALITY) ?? string.Empty;
            this.gender = Environment.GetEnvironmentVariable(GATEWAY_ID_GENDER) ?? string.Empty;
            this.orgName = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGNAME) ?? string.Empty;
            this.orgDepartment = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGDEPT) ?? string.Empty;
            this.orgRole = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGROLE) ?? string.Empty;
            this.orgNumber = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGNR) ?? string.Empty;
            this.orgAddress = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGADDR) ?? string.Empty;
            this.orgAddress2 = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGADDR2) ?? string.Empty;
            this.orgPostalCode = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGZIP) ?? string.Empty;
            this.orgArea = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGAREA) ?? string.Empty;
            this.orgCity = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGCITY) ?? string.Empty;
            this.orgRegion = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGREGION) ?? string.Empty;
            this.orgCountry = Environment.GetEnvironmentVariable(GATEWAY_ID_ORGCOUNTRY) ?? string.Empty;
 
            if (!this.TryGetEnvironmentVariable(GATEWAY_ID_BDATE, false, out this.birthDate))
                return false;
 
            List<AlternativeField> Fields = new List<AlternativeField>();
 
            if (this.TryGetEnvironmentVariable(GATEWAY_ID_ALT,false,out string Value))
            {
                string[] Parts = Value.Split(',');
 
                foreach (string Part in Parts)
                {
                    string Name = GATEWAY_ID_ALT_ + Part;
 
                    if (!this.TryGetEnvironmentVariable(Name, true, out Value))
                        return false;
 
                    Fields.Add(new AlternativeField(Part, Value));
                }
            }
 
            this.altFields = Fields.ToArray();
 
            Value = Environment.GetEnvironmentVariable(GATEWAY_ID_PASSWORD);
 
            TaskCompletionSource<bool> Result = new TaskCompletionSource<bool>();
            try
            {
                Task _ = Task.Delay(30000).ContinueWith(Prev => Result?.TrySetException(new TimeoutException()));
 
                await this.ApplyId(Value, null, !string.IsNullOrEmpty(Value), false, Result);
 
                if (await Result.Task)
                    return true;
                else
                    return false;
            }
            catch (Exception ex)
            {
                Log.Exception(ex);
                return false;
            }
        }
 
    }
}