add authorization

Azaion.Api/Azaion.Api.csproj

@@ -8,6 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="FluentValidation.AspNetCore" Version="11.3.0" />
+        <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.10" />
         <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.8"/>
         <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0"/>
     </ItemGroup>

Azaion.Api/Program.cs

@@ -1,11 +1,41 @@
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Text;
+using Azaion.Common;
 using Azaion.Common.Configs;
 using Azaion.Common.Database;
+using Azaion.Common.Entities;
 using Azaion.Common.Requests;
 using Azaion.Services;
 using FluentValidation;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.Extensions.Options;
+using Microsoft.IdentityModel.Tokens;
 
 var builder = WebApplication.CreateBuilder(args);
+builder.Configuration.AddEnvironmentVariables();
+
+var jwtConfig = builder.Configuration.GetSection(nameof(JwtConfig)).Get<JwtConfig>();
+if (jwtConfig == null)
+    throw new Exception("Missing configuration section: JwtConfig");
+var signingKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(jwtConfig.Secret));
+
+builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+    .AddJwtBearer(o =>
+    {
+        o.TokenValidationParameters = new TokenValidationParameters
+        {
+            ValidateIssuer = true,
+            ValidateAudience = true,
+            ValidateLifetime = true,
+            ValidateIssuerSigningKey = true,
+            ValidIssuer = jwtConfig.Issuer,
+            ValidAudience = jwtConfig.Audience,
+            IssuerSigningKey = signingKey
+        };
+    });
+builder.Services.AddAuthorization();
+builder.Services.AddHttpContextAccessor();
 
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
@@ -27,22 +57,57 @@ if (app.Environment.IsDevelopment())
 }
 
 app.UseHttpsRedirection();
+app.UseAuthentication();
+app.UseAuthorization();
+
+app.MapPost("/login",
+    async (string username, string password, IUserService userService, CancellationToken cancellationToken) =>
+    {
+        var user = await userService.ValidateUser(username, password);
+
+        var tokenHandler = new JwtSecurityTokenHandler();
+        var tokenDescriptor = new SecurityTokenDescriptor
+        {
+            Subject = new ClaimsIdentity([
+                new Claim(ClaimTypes.NameIdentifier, user.Id),
+                new Claim(ClaimTypes.Name, user.Email),
+                new Claim(ClaimTypes.Role, user.Role.ToString()),
+                new Claim(Constants.HARDWARE_ID, user.HardwareId)
+            ]),
+            Expires = DateTime.UtcNow.AddHours(2),
+            Issuer = jwtConfig.Issuer,
+            Audience = jwtConfig.Audience,
+            SigningCredentials = new SigningCredentials(signingKey, SecurityAlgorithms.HmacSha256Signature)
+        };
+
+        var token = tokenHandler.CreateToken(tokenDescriptor);
+        var tokenString = tokenHandler.WriteToken(token);
+
+        return Results.Ok(new { Token = tokenString });
+    });
 
 app.MapPost("/register-user",
     async (RegisterUserRequest registerUserRequest, IUserService userService, CancellationToken cancellationToken)
-        => await userService.RegisterUser(registerUserRequest, cancellationToken));
-
-app.MapPost("/resources/get",
-    async (GetResourceRequest getResourceRequest, IUserService userService, IResourcesService resourcesService, CancellationToken cancellationToken) =>
-    {
-        await userService.ValidateUser(getResourceRequest, cancellationToken);
-        var ms = new MemoryStream();
-        await resourcesService.GetEncryptedResource(getResourceRequest, ms, cancellationToken);
-        return ms;
-    });
+        => await userService.RegisterUser(registerUserRequest, cancellationToken))
+    .RequireAuthorization(p => p.RequireRole(RoleEnum.ApiAdmin.ToString()));
 
 app.MapPost("/resources",
     async (UploadResourceRequest uploadResourceRequest, IResourcesService resourceService, CancellationToken cancellationToken)
-        => await resourceService.SaveResource(uploadResourceRequest, cancellationToken));
+        => await resourceService.SaveResource(uploadResourceRequest, cancellationToken))
+    .RequireAuthorization(p => p.RequireRole(RoleEnum.ApiAdmin.ToString()));
+
+app.MapPost("/resources/get",
+    async (GetResourceRequest request, IUserService userService, IResourcesService resourcesService, CancellationToken cancellationToken) =>
+    {
+        var user = userService.CurrentUser;
+        if (user == null)
+            throw new BusinessException(ExceptionEnum.NoUser, "No current user");
+        if (string.IsNullOrEmpty(user.HardwareId))
+            await userService.UpdateHardwareId(user.Email, request.HardwareId);
+        var ms = new MemoryStream();
+        var key = Security.MakeEncryptionKey(user.Email, request.Password);
+        await resourcesService.GetEncryptedResource(request.ResourceEnum, key, ms, cancellationToken);
+        return ms;
+    }).RequireAuthorization();
 
 app.Run();

Azaion.Common/BusinessException.cs

@@ -8,6 +8,7 @@ public class BusinessException(ExceptionEnum exEnum, string message) : Exception
 public enum ExceptionEnum
 {
     NoUserFound = 10,
+    NoUser = 15,
     UserExists = 20,
     PasswordIncorrect = 30,
     UserLengthIncorrect = 33,

Azaion.Common/Configs/Constants.cs

@@ -0,0 +1,6 @@
+namespace Azaion.Common.Configs;
+
+public class Constants
+{
+    public const string HARDWARE_ID = nameof(HARDWARE_ID);
+}

Azaion.Common/Configs/JwtConfig.cs

@@ -0,0 +1,8 @@
+namespace Azaion.Common.Configs;
+
+public class JwtConfig
+{
+    public string Issuer { get; set; } = null!;
+    public string Audience { get; set; } = null!;
+    public string Secret { get; set; }
+}

Azaion.Common/Entities/RoleEnum.cs

@@ -1,9 +1,10 @@
-namespace Azaion.Common;
+namespace Azaion.Common.Entities;
 
 public enum RoleEnum
 {
     Operator,
     Validator,
     CompanionPC,
-    Admin
+    Admin,
+    ApiAdmin
 }

Azaion.Common/Entities/User.cs

@@ -3,10 +3,8 @@
 public class User
 {
     public string   Id           { get; set; } = null!;
-    public string   Username     { get; set; } = null!;
+    public string   Email     { get; set; } = null!;
     public string   PasswordHash { get; set; } = null!;
     public string   HardwareId   { get; set; } = null!;
     public RoleEnum Role         { get; set; }
-
-    public string UniqueKey => $"Azaion#{Username}#{PasswordHash}#{HardwareId}";
 }

Azaion.Common/Requests/GetResourceRequest.cs

@@ -4,7 +4,6 @@ namespace Azaion.Common.Requests;
 
 public class GetResourceRequest
 {
-    public string   Username   { get; set; } = null!;
     public string Password { get; set; } = null!;
     public string HardwareId { get; set; } = null!;
     public ResourceEnum ResourceEnum { get; set; }

Azaion.Common/Requests/RegisterUserRequest.cs

@@ -1,3 +1,4 @@
+using Azaion.Common.Entities;
 using FluentValidation;
 
 namespace Azaion.Common.Requests;

Azaion.Services/Azaion.Services.csproj

@@ -11,6 +11,9 @@
     </ItemGroup>
 
     <ItemGroup>
+      <Reference Include="Microsoft.AspNetCore.Http.Abstractions">
+        <HintPath>C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\8.0.8\Microsoft.AspNetCore.Http.Abstractions.dll</HintPath>
+      </Reference>
       <Reference Include="Microsoft.Extensions.Options">
         <HintPath>C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\8.0.8\Microsoft.Extensions.Options.dll</HintPath>
       </Reference>

Azaion.Services/ResourcesService.cs

@@ -8,16 +8,15 @@ namespace Azaion.Services;
 
 public interface IResourcesService
 {
-    Task GetEncryptedResource(GetResourceRequest request, Stream outputStream, CancellationToken cancellationToken = default);
+    Task GetEncryptedResource(ResourceEnum resource, string key, Stream outputStream, CancellationToken cancellationToken = default);
     Task SaveResource(UploadResourceRequest request, CancellationToken cancellationToken = default);
 }
 
 public class ResourcesService(IOptions<ResourcesConfig> resourcesConfig) : IResourcesService
 {
-    public async Task GetEncryptedResource(GetResourceRequest request, Stream outputStream, CancellationToken cancellationToken = default)
+    public async Task GetEncryptedResource(ResourceEnum resource, string key, Stream outputStream, CancellationToken cancellationToken = default)
     {
-        var fileStream = new FileStream(GetResourcePath(request.ResourceEnum), FileMode.Open, FileAccess.Read);
-        var key = Security.MakeEncryptionKey(request.Username, request.Password);
+        var fileStream = new FileStream(GetResourcePath(resource), FileMode.Open, FileAccess.Read);
         await fileStream.EncryptTo(outputStream, key, cancellationToken);
     }
 

Azaion.Services/UserService.cs

@@ -1,56 +1,80 @@
-using Azaion.Common;
+using System.Security.Claims;
+using Azaion.Common;
+using Azaion.Common.Configs;
 using Azaion.Common.Database;
 using Azaion.Common.Entities;
 using Azaion.Common.Requests;
 using LinqToDB;
+using Microsoft.AspNetCore.Http;
 
 namespace Azaion.Services;
 
 public interface IUserService
 {
+    User? CurrentUser { get; }
     Task RegisterUser(RegisterUserRequest request, CancellationToken cancellationToken = default);
-    Task<User?> ValidateUser(GetResourceRequest request, CancellationToken cancellationToken = default);
+    Task<User> ValidateUser(string username, string password, string? hardwareId = null, CancellationToken cancellationToken = default);
+    Task UpdateHardwareId(string username, string hardwareId, CancellationToken cancellationToken = default);
 }
 
-public class UserService(IDbFactory dbFactory) : IUserService
+public class UserService(IDbFactory dbFactory, IHttpContextAccessor httpContextAccessor) : IUserService
 {
+    public User? CurrentUser
+    {
+        get
+        {
+            var claims = httpContextAccessor.HttpContext?.User.Claims.ToDictionary(x => x.Type);
+            if (claims == null)
+                return null;
+
+            Enum.TryParse(claims[ClaimTypes.Role].Value, out RoleEnum role);
+            return new User
+            {
+                Id = claims[ClaimTypes.NameIdentifier].Value,
+                Email = claims[ClaimTypes.Name].Value,
+                Role = role,
+                HardwareId = claims[Constants.HARDWARE_ID].Value,
+            };
+        }
+    }
+
     public async Task RegisterUser(RegisterUserRequest request, CancellationToken cancellationToken = default)
     {
         await dbFactory.Run(async db =>
         {
-            var existingUser = await db.Users.FirstOrDefaultAsync(u => u.Username == request.Email, token: cancellationToken);
+            var existingUser = await db.Users.FirstOrDefaultAsync(u => u.Email == request.Email, token: cancellationToken);
             if (existingUser != null)
                 throw new BusinessException(ExceptionEnum.UserExists, "User already exists");
 
             await db.InsertAsync(new User
             {
-                Username = request.Email,
+                Email = request.Email,
                 PasswordHash = request.Password.ToHash(),
                 Role = request.Role
             }, token: cancellationToken);
         });
     }
 
-    public async Task<User?> ValidateUser(GetResourceRequest request, CancellationToken cancellationToken = default) =>
+    public async Task<User> ValidateUser(string username, string password, string? hardwareId = null, CancellationToken cancellationToken = default) =>
         await dbFactory.Run(async db =>
         {
-            var user = await db.Users.FirstOrDefaultAsync(x => x.Username == request.Username, token: cancellationToken);
+            var user = await db.Users.FirstOrDefaultAsync(x => x.Email == username, token: cancellationToken);
             if (user == null)
                 throw new BusinessException(ExceptionEnum.NoUserFound, "No user found");
 
-            if (request.Password.ToHash() != user.PasswordHash)
+            if (password.ToHash() != user.PasswordHash)
                 throw new BusinessException(ExceptionEnum.PasswordIncorrect, "Passwords do not match");
 
-            //If user's hardware Id is empty (usually on the first time login), then write down user
-            if (string.IsNullOrEmpty(user.HardwareId))
-                await db.Users.UpdateAsync(x => x.Username == request.Username, u => new User{HardwareId = request.HardwareId}, token: cancellationToken);
-            else
-            {
-                //But if hardware Id exists, it should match with request
-                if (user.HardwareId != request.HardwareId)
-                    throw new BusinessException(ExceptionEnum.HardwareIdMismatch, "Hardware id mismatch");
-            }
+            if (user.Role == RoleEnum.ApiAdmin)
+                return user;
 
+            // For Non-API admins hardwareId should match if it was already set
+            if (user.HardwareId != null && user.HardwareId != hardwareId)
+                throw new BusinessException(ExceptionEnum.HardwareIdMismatch, "Hardware id mismatch");
             return user;
         });
+
+    public async Task UpdateHardwareId(string username, string hardwareId, CancellationToken cancellationToken = default) =>
+        await dbFactory.Run(async db =>
+            await db.Users.UpdateAsync(x => x.Email == username, u => new User { HardwareId = hardwareId}, token: cancellationToken));
 }