identity server methods

IdentityServer.Api/Controllers/IdentityController.cs

@@ -0,0 +1,41 @@
+using IdentityServer.Application.Commands;
+using MediatR;
+using Microsoft.AspNetCore.Mvc;
+using System.Threading.Tasks;
+
+namespace IdentityServer.Api.Controllers
+{
+    [ApiController]
+    [Route("identity")]
+    public class IdentityController : ControllerBase
+    {
+        private readonly IMediator _mediator;
+
+        public IdentityController(IMediator mediator)
+        {
+            _mediator = mediator;
+        }
+
+        [HttpPost("authenticate/{userName}/{password}")]
+        public async Task<IActionResult> AuthenticateUser([FromRoute] AuthenticateUser authenticateUser)
+        {
+            var result = await _mediator.Send(authenticateUser);
+
+            if (result != null)
+                return Ok(result);
+            else
+                return BadRequest();
+        }
+
+        [HttpPost("authorize/{token}")]
+        public async Task<IActionResult> AuthorizeToken([FromRoute] AuthorizeToken authorizeToken)
+        {
+            var result = await _mediator.Send(authorizeToken);
+
+            if (result != null)
+                return Ok(result);
+            else
+                return BadRequest();
+        }
+    }
+}

IdentityServer.Api/Controllers/WeatherForecastController.cs

@@ -1,39 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.Extensions.Logging;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-
-namespace IdentityServer.Api.Controllers
-{
-    [ApiController]
-    [Route("[controller]")]
-    public class WeatherForecastController : ControllerBase
-    {
-        private static readonly string[] Summaries = new[]
-        {
-            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-        };
-
-        private readonly ILogger<WeatherForecastController> _logger;
-
-        public WeatherForecastController(ILogger<WeatherForecastController> logger)
-        {
-            _logger = logger;
-        }
-
-        [HttpGet]
-        public IEnumerable<WeatherForecast> Get()
-        {
-            var rng = new Random();
-            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
-            {
-                Date = DateTime.Now.AddDays(index),
-                TemperatureC = rng.Next(-20, 55),
-                Summary = Summaries[rng.Next(Summaries.Length)]
-            })
-            .ToArray();
-        }
-    }
-}

IdentityServer.Api/IdentityServer.Api.csproj

@@ -1,8 +1,27 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.1.4" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Serilog.AspNetCore" Version="$(SerilogPackageVersion)" />
+    <PackageReference Include="Serilog.Extensions.Logging" Version="$(SerilogExtensionsPackageVersion)" />
+    <PackageReference Include="Serilog.Sinks.Console" Version="$(SerilogSinksConsolePackageVersion)" />
+    <PackageReference Include="Serilog.Sinks.MSSqlServer" Version="$(SerilogSinksMSSqlServerPackageVersion)" />
+    <PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="$(AutoMapperExtensionsPackageVersion)" />
+    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="$(MediatRPackageVersion)" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="$(SwashbucklePackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.WindowsServices" Version="$(MicrosoftExtensionsPackageVersion)" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\IdentityServer.Application\IdentityServer.Application.csproj" />
+  </ItemGroup>
   
 </Project>

IdentityServer.Api/WeatherForecast.cs

@@ -1,15 +0,0 @@
-using System;
-
-namespace IdentityServer.Api
-{
-    public class WeatherForecast
-    {
-        public DateTime Date { get; set; }
-
-        public int TemperatureC { get; set; }
-
-        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-
-        public string Summary { get; set; }
-    }
-}

IdentityServer.Application/Class1.cs

@@ -1,8 +0,0 @@
-using System;
-
-namespace IdentityServer.Application
-{
-    public class Class1
-    {
-    }
-}

IdentityServer.Application/CommandHandlers/AuthenticateUserHandler.cs

@@ -0,0 +1,32 @@
+using AutoMapper;
+using IdentityServer.Application.Commands;
+using IdentityServer.Application.Services;
+using IdentityServer.PublishedLanguage.Dto;
+using MediatR;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace IdentityServer.Application.CommandHandlers
+{
+    public class AuthenticateUserHandler : IRequestHandler<AuthenticateUser, Token>
+    {
+        private readonly IUserService _userService;
+        private readonly IMapper _mapper;
+
+        public AuthenticateUserHandler(IUserService userService, IMapper mapper)
+        {
+            _userService = userService;
+            _mapper = mapper;
+        }
+
+        public async Task<Token> Handle(AuthenticateUser command, CancellationToken cancellationToken)
+        {
+            var internalToken = await _userService.Authenticate(command.UserName, command.Password);
+            if (internalToken == null)
+                return null;
+
+            var token = _mapper.Map<Token>(internalToken);
+            return token;
+        }
+    }
+}

IdentityServer.Application/CommandHandlers/AuthorizeTokenHandler.cs

@@ -0,0 +1,32 @@
+using AutoMapper;
+using IdentityServer.Application.Commands;
+using IdentityServer.Application.Services;
+using IdentityServer.PublishedLanguage.Dto;
+using MediatR;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace IdentityServer.Application.CommandHandlers
+{
+    public class AuthorizeTokenHandler : IRequestHandler<AuthorizeToken, User>
+    {
+        private readonly IUserService _userService;
+        private readonly IMapper _mapper;
+
+        public AuthorizeTokenHandler(IUserService userService, IMapper mapper)
+        {
+            _userService = userService;
+            _mapper = mapper;
+        }
+
+        public async Task<User> Handle(AuthorizeToken command, CancellationToken cancellationToken)
+        {
+            var appUser = await _userService.Authorize(command.Token);
+            if (appUser == null)
+                return null;
+
+            var user = _mapper.Map<User>(appUser);
+            return user;
+        }
+    }
+}

IdentityServer.Application/Commands/AuthenticateUser.cs

@@ -0,0 +1,16 @@
+using IdentityServer.PublishedLanguage.Dto;
+
+namespace IdentityServer.Application.Commands
+{
+    public class AuthenticateUser : Command<Token>
+    {
+        public string UserName { get; set; }
+        public string Password { get; set; }
+
+        public AuthenticateUser(string userName, string password)
+        {
+            UserName = userName;
+            Password = password;
+        }
+    }
+}

IdentityServer.Application/Commands/AuthorizeToken.cs

@@ -0,0 +1,9 @@
+using IdentityServer.PublishedLanguage.Dto;
+
+namespace IdentityServer.Application.Commands
+{
+    public class AuthorizeToken : Command<User>
+    {
+        public string Token { get; set; }
+    }
+}

IdentityServer.Application/Commands/Command.cs

@@ -0,0 +1,45 @@
+using MediatR;
+using System;
+using System.Collections.Generic;
+
+namespace IdentityServer.Application.Commands
+{
+    public abstract class Command<TResponse> : ICommand, IRequest<TResponse>
+    {
+        public Metadata Metadata { get; }
+
+        protected Command()
+        {
+            Metadata = new Metadata() { CorrelationId = Guid.NewGuid() };
+        }
+
+        protected Command(Metadata metadata)
+        {
+            Metadata = metadata;
+        }
+    }
+
+    public interface ICommand
+    {
+    }
+
+    public class Metadata : Dictionary<string, string>
+    {
+        public const string CorrelationIdKey = "CorrelationId";
+
+        public Guid CorrelationId
+        {
+            get
+            {
+                return Guid.Parse(this[CorrelationIdKey]);
+            }
+            set
+            {
+                if (ContainsKey(CorrelationIdKey))
+                    this[CorrelationIdKey] = value.ToString();
+                else
+                    Add(CorrelationIdKey, value.ToString());
+            }
+        }
+    }
+}

IdentityServer.Application/DependencyInjectionExtensions.cs

@@ -0,0 +1,20 @@
+using IdentityServer.Application.Services;
+using IdentityServer.Application.Stores;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace IdentityServer.Application
+{
+    public static class DependencyInjectionExtensions
+    {
+        public static void AddApplicationServices(this IServiceCollection services)
+        {
+            services.AddStores();
+            services.AddScoped<IUserService, UserService>();
+        }
+
+        private static void AddStores(this IServiceCollection services)
+        {
+            services.AddSingleton<ISecurityStore, SecurityStore>();
+        }
+    }
+}

IdentityServer.Application/IdentityServer.Application.csproj

@@ -4,4 +4,18 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="$(AutoMapperPackageVersion)" />
+    <PackageReference Include="MediatR" Version="$(MediatRPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="$(MicrosoftExtensionsPackageVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="$(MicrosoftExtensionsPackageVersion)" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\IdentityServer.Domain\IdentityServer.Domain.csproj" />
+    <ProjectReference Include="..\IdentityServer.PublishedLanguage\IdentityServer.PublishedLanguage.csproj" />
+  </ItemGroup>
+
 </Project>

IdentityServer.Application/Mappings/MappingProfile.cs

@@ -0,0 +1,16 @@
+using AutoMapper;
+using IdentityServer.Domain.Entities;
+using dto = IdentityServer.PublishedLanguage.Dto;
+using models = IdentityServer.Domain.Models;
+
+namespace IdentityServer.Application.Mappings
+{
+    public class MappingProfile : Profile
+    {
+        public MappingProfile()
+        {
+            CreateMap<models.Token, dto.Token>();
+            CreateMap<AppUser, dto.User>();
+        }
+    }
+}

IdentityServer.Application/Queries/Query.cs

@@ -0,0 +1,6 @@
+using MediatR;
+
+namespace IdentityServer.Application.Queries
+{
+    public abstract class Query<TResponse> : IRequest<TResponse>, IBaseRequest { }
+}

IdentityServer.Application/Services/IUserService.cs

@@ -0,0 +1,12 @@
+using IdentityServer.Domain.Entities;
+using IdentityServer.Domain.Models;
+using System.Threading.Tasks;
+
+namespace IdentityServer.Application.Services
+{
+    public interface IUserService
+    {
+        Task<Token> Authenticate(string userName, string password);
+        Task<AppUser> Authorize(string token);
+    }
+}

IdentityServer.Application/Services/UserService.cs

@@ -0,0 +1,46 @@
+using IdentityServer.Application.Stores;
+using IdentityServer.Domain.Entities;
+using IdentityServer.Domain.Models;
+using IdentityServer.Domain.Repositories;
+using System;
+using System.Threading.Tasks;
+
+namespace IdentityServer.Application.Services
+{
+    public class UserService : IUserService
+    {
+        private readonly ISecurityStore _securityStore;
+        private readonly IIdentityRepository _identityRepository;
+
+        public UserService(ISecurityStore securityStore, IIdentityRepository identityRepository)
+        {
+            _securityStore = securityStore;
+            _identityRepository = identityRepository;
+        }
+
+        public async Task<Token> Authenticate(string userName, string password)
+        {
+            var user = await _identityRepository.GetAppUser(userName, password);
+            if (user == null)
+                return null;
+
+            var tokenRaw = $"{Guid.NewGuid()}-{Guid.NewGuid()}-{user.UserId}";
+            _securityStore.SetToken(tokenRaw, user.UserId);
+
+            var token = new Token() { Raw = tokenRaw };
+            return token;
+        }
+
+        public async Task<AppUser> Authorize(string token)
+        {
+            var tokenValidation = _securityStore.ValidateToken(token);
+            if (tokenValidation.Success)
+            {
+                var user = await _identityRepository.GetAppUser(tokenValidation.UserId);
+                return user;
+            }
+
+            return null;
+        }
+    }
+}

IdentityServer.Application/Stores/ISecurityStore.cs

@@ -0,0 +1,10 @@
+using IdentityServer.Domain.Models;
+
+namespace IdentityServer.Application.Stores
+{
+    public interface ISecurityStore
+    {
+        void SetToken(string token, int userId);
+        TokenValidation ValidateToken(string token);
+    }
+}

IdentityServer.Application/Stores/SecurityStore.cs

@@ -0,0 +1,50 @@
+using IdentityServer.Domain.Models;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace IdentityServer.Application.Stores
+{
+    public class SecurityStore : ISecurityStore
+    {
+        private ConcurrentDictionary<int, List<Token>> Tokens { get; }
+
+        public SecurityStore()
+        {
+            Tokens = new ConcurrentDictionary<int, List<Token>>();
+        }
+
+        public void SetToken(string token, int userId)
+        {
+            var registered = Tokens.TryGetValue(userId, out List<Token> list);
+
+            if (registered)
+                list.Add(new Token() { Raw = token });
+            else
+                Tokens.TryAdd(userId, new List<Token>() { new Token() { Raw = token } });
+        }
+
+        public TokenValidation ValidateToken(string token)
+        {
+            var lastIndexOfSeparator = token.LastIndexOf('-') + 1;
+            var userIdString = token.Substring(lastIndexOfSeparator, token.Length - lastIndexOfSeparator);
+
+            if (!int.TryParse(userIdString, out int userId))
+                return InvalidToken;
+
+            var registered = Tokens.TryGetValue(userId, out List<Token> list);
+
+            if (!registered)
+                return InvalidToken;
+
+            var valid = list.FirstOrDefault(z => z.Raw == token);
+            if (valid != null)
+                return new TokenValidation() { Success = true, UserId = userId };
+
+            return InvalidToken;
+        }
+
+        private TokenValidation InvalidToken => new TokenValidation() { Success = false };
+    }
+}

IdentityServer.Domain.Data/Repositories/IdentityRepository.cs

@@ -15,6 +15,11 @@ namespace IdentityServer.Domain.Data.Repositories
             _dbContext = dbContext;
         }
 
+        public Task<AppUser> GetAppUser(int userId)
+        {
+            return _dbContext.AppUsers.FirstOrDefaultAsync(z => z.UserId == userId);
+        }
+
         public Task<AppUser> GetAppUser(string userName, string password)
         {
             return _dbContext.AppUsers.FirstOrDefaultAsync(z => z.UserName == userName && z.Password == password);

IdentityServer.Domain/Models/Token.cs

@@ -0,0 +1,10 @@
+using System;
+
+namespace IdentityServer.Domain.Models
+{
+    public class Token
+    {
+        public string Raw { get; set; }
+        public DateTime ValidUntil { get; set; }
+    }
+}

IdentityServer.Domain/Models/TokenValidation.cs

@@ -0,0 +1,8 @@
+namespace IdentityServer.Domain.Models
+{
+    public class TokenValidation
+    {
+        public bool Success { get; set; }
+        public int UserId { get; set; }
+    }
+}

IdentityServer.Domain/Repositories/IIdentityRepository.cs

@@ -1,10 +1,11 @@
-using System;
+using IdentityServer.Domain.Entities;
-using System.Collections.Generic;
+using System.Threading.Tasks;
-using System.Text;
 
 namespace IdentityServer.Domain.Repositories
 {
     public interface IIdentityRepository
     {
+        Task<AppUser> GetAppUser(int userId);
+        Task<AppUser> GetAppUser(string userName, string password);
     }
 }

IdentityServer.PublishedLanguage/Dto/Token.cs

@@ -0,0 +1,10 @@
+using System;
+
+namespace IdentityServer.PublishedLanguage.Dto
+{
+    public class Token
+    {
+        public string Raw { get; set; }
+        public DateTime ValidUntil { get; set; }
+    }
+}

IdentityServer.PublishedLanguage/Dto/User.cs

@@ -0,0 +1,8 @@
+namespace IdentityServer.PublishedLanguage.Dto
+{
+    public class User
+    {
+        public int UserId { get; set; }
+        public string UserName { get; set; }
+    }
+}

IdentityServer.PublishedLanguage/IdentityServer.PublishedLanguage.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

IdentityServer.sln

@@ -21,6 +21,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IdentityServer.Domain", "Id
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IdentityServer.Domain.Data", "IdentityServer.Domain.Data\IdentityServer.Domain.Data.csproj", "{CE81A435-49AC-4544-A381-FAC91BEB3C49}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IdentityServer.PublishedLanguage", "IdentityServer.PublishedLanguage\IdentityServer.PublishedLanguage.csproj", "{67B4D1FF-D02E-4DA6-9FB8-F71667360448}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -43,6 +45,10 @@ Global
 		{CE81A435-49AC-4544-A381-FAC91BEB3C49}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{CE81A435-49AC-4544-A381-FAC91BEB3C49}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{CE81A435-49AC-4544-A381-FAC91BEB3C49}.Release|Any CPU.Build.0 = Release|Any CPU
+		{67B4D1FF-D02E-4DA6-9FB8-F71667360448}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{67B4D1FF-D02E-4DA6-9FB8-F71667360448}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{67B4D1FF-D02E-4DA6-9FB8-F71667360448}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{67B4D1FF-D02E-4DA6-9FB8-F71667360448}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -52,6 +58,7 @@ Global
 		{6556D255-AF22-478E-A71A-BE37C16D5EE4} = {5A8FF505-3E4D-4258-BC3E-CACD74A7B98C}
 		{5890B079-3CB0-4AD6-8809-BB2E081590B1} = {5A8FF505-3E4D-4258-BC3E-CACD74A7B98C}
 		{CE81A435-49AC-4544-A381-FAC91BEB3C49} = {5A8FF505-3E4D-4258-BC3E-CACD74A7B98C}
+		{67B4D1FF-D02E-4DA6-9FB8-F71667360448} = {5A8FF505-3E4D-4258-BC3E-CACD74A7B98C}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {E93DC46D-9C55-4A05-B299-497CDD90747E}

Notes.txt

@@ -5,3 +5,7 @@ dotnet publish --configuration Release --runtime win7-x64
 Create windows service:
 sc create NetworkResurrector.Api binPath= "<path_to_the_service_executable>"
 #######################################################################################################################################################
+
+
+TO DO:
+- Cache for users