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//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Tango Observables Generator
// 
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated. Do not modify!
// </auto-generated>
//------------------------------------------------------------------------------

using System.Collections.ObjectModel;
using System.ComponentModel;
using Tango.BL.Entities;

namespace Tango.BL
{
    public partial class @(Model.Name)
    {
        @foreach (var prop in Model.Properties)
        {
    <div>
        private @(prop.Type) _@(prop.Name.ToLower());
        /// <summary>
        /// Gets or sets the @(prop.Name).
        /// </summary>
        public @(prop.Type) @(prop.Name)
        {
        get { return _@(prop.Name.ToLower()); }
        set { _@(prop.Name.ToLower()) = value; RaisePropertyChanged(nameof(@(prop.Name))); }
        }

        private ICollectionView _@(prop.Name.ToLower())ViewSource;
        /// <summary>
        /// Gets or sets the @(prop.Name) View Source.
        ///</summary>
        public ICollectionView @(prop.Name)ViewSource
        {
        get { return _@(prop.Name.ToLower())ViewSource; }
        set { _@(prop.Name.ToLower())ViewSource = value; RaisePropertyChanged(nameof(@(prop.Name)ViewSource)); }
        }
    </div>
        }

        /// <summary>
        /// Initialize collection sources.
        /// </summary>
        private void InitCollectionSources()
        {
            @foreach (var prop in Model.Properties)
            {
               <div>
                   @(prop.Name)ViewSource = CreateCollectionView(@(prop.Name));
               </div>
            }
        }
    }
}
-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
using JWT;
using JWT.Algorithms;
using JWT.Builder;
using JWT.Serializers;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;

namespace Tango.Web.Security
{
    public class WebToken
    {
        public DateTime Issued { get; protected set; }
        public DateTime? Expiration { get; protected set; }
        public String AccessToken { get; protected set; }
        public String RefreshToken { get; protected set; }

        public WebToken()
        {

        }

        public static WebToken CreateNew(String secret, DateTime? expiration = null)
        {
            DateTime issued = DateTime.UtcNow;

            var builder = new JwtBuilder()
                 .WithAlgorithm(new HMACSHA256Algorithm())
                 .WithSecret(secret)
                 .IssuedAt(issued);

            if (expiration != null)
            {
                builder = builder.ExpirationTime(expiration.Value);
            }

            String refreshToken = Guid.NewGuid().ToString();

            builder = builder.AddClaim("object", null);
            builder = builder.AddClaim("refresh-token", refreshToken);

            return new WebToken()
            {
                AccessToken = builder.Build(),
                RefreshToken = refreshToken,
                Expiration = expiration,
                Issued = issued,
            };
        }

        public static void Validate(String secret, String token)
        {
            var json = new JwtBuilder()
                 .WithSecret(secret)
                 .MustVerifySignature()
                 .Decode(token);
        }

        public void Validate(String secret)
        {
            var json = new JwtBuilder()
                        .WithSecret(secret)
                        .MustVerifySignature()
                        .Decode(AccessToken);
        }

        public WebToken Renew(String secret)
        {
            var newToken = CreateNew(secret, DateTime.UtcNow.Add(Expiration.Value - Issued));
            newToken.RefreshToken = RefreshToken;
            return newToken;
        }

        public static WebToken FromToken(String token)
        {
            WebToken webToken = new WebToken();

            var payload = new JwtBuilder()
                  .WithValidator(null)
                  .Decode<IDictionary<string, object>>(token);

            webToken.AccessToken = token;

            if (payload.ContainsKey("exp"))
            {
                long exp = long.Parse(payload["exp"].ToString());
                webToken.Expiration = ConvertEpochToDateTime(exp);
            }

            if (payload.ContainsKey("iat"))
            {
                long iat = long.Parse(payload["iat"].ToString());
                webToken.Issued = ConvertEpochToDateTime(iat);
            }

            if (payload.ContainsKey("refresh-token"))
            {
                webToken.RefreshToken = payload["refresh-token"].ToString();
            }

            return webToken;
        }

        protected static DateTime ConvertEpochToDateTime(long seconds)
        {
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return epoch.AddSeconds(seconds);
        }
    }

    public class WebToken<T> : WebToken where T : class
    {
        public T Object { get; protected set; }

        private WebToken()
        {

        }

        public static WebToken<T> CreateNew(String secret, T obj = null, DateTime? expiration = null)
        {
            DateTime issued = DateTime.UtcNow;

            var builder = new JwtBuilder()
                 .WithAlgorithm(new HMACSHA256Algorithm())
                 .WithSecret(secret)
                 .IssuedAt(issued);

            if (expiration != null)
            {
                builder = builder.ExpirationTime(expiration.Value);
            }

            String refreshToken = Guid.NewGuid().ToString();

            builder = builder.AddClaim("object", obj);
            builder = builder.AddClaim("refresh-token", refreshToken);

            return new WebToken<T>()
            {
                AccessToken = builder.Build(),
                RefreshToken = refreshToken,
                Expiration = expiration,
                Issued = issued,
                Object = obj,
            };
        }

        public static new WebToken<T> FromToken(String token)
        {
            WebToken<T> webToken = new WebToken<T>();

            var payload = new JwtBuilder()
                  .WithValidator(null)
                  .Decode<IDictionary<string, object>>(token);

            webToken.AccessToken = token;

            if (payload.ContainsKey("exp"))
            {
                long exp = long.Parse(payload["exp"].ToString());
                webToken.Expiration = ConvertEpochToDateTime(exp);
            }

            if (payload.ContainsKey("iat"))
            {
                long iat = long.Parse(payload["iat"].ToString());
                webToken.Issued = ConvertEpochToDateTime(iat);
            }

            if (payload.ContainsKey("refresh-token"))
            {
                webToken.RefreshToken = payload["refresh-token"].ToString();
            }

            webToken.Object = JsonConvert.DeserializeObject<T>(payload["object"].ToString());

            return webToken;
        }

        public new WebToken<T> Renew(String secret)
        {
            var newToken = WebToken<T>.CreateNew(secret, Object, DateTime.UtcNow.Add(Expiration.Value - Issued));
            newToken.RefreshToken = RefreshToken;
            return newToken;
        }
    }
}