IdentityService.cs
9,438 bytes
| 1 | using System.IdentityModel.Tokens.Jwt; |
|---|---|
| 2 | using System.Security.Claims; |
| 3 | using MediatR; |
| 4 | using Microsoft.AspNetCore.Identity; |
| 5 | using Microsoft.Extensions.Configuration; |
| 6 | using SplitApp.Modules.Users.Application.Contracts; |
| 7 | using SplitApp.Modules.Users.Domain.Entities; |
| 8 | using SplitApp.Shared.Kernel.Auth; |
| 9 | |
| 10 | namespace SplitApp.Modules.Users.Application.Services; |
| 11 | |
| 12 | public class IdentityService : IIdentityService |
| 13 | { |
| 14 | private readonly IUsersUnitOfWork _uow; |
| 15 | private readonly UserManager<AppUser> _userManager; |
| 16 | private readonly IConfiguration _configuration; |
| 17 | private readonly IMediator _mediator; |
| 18 | |
| 19 | public IdentityService( |
| 20 | IUsersUnitOfWork uow, |
| 21 | UserManager<AppUser> userManager, |
| 22 | IConfiguration configuration, |
| 23 | IMediator mediator) |
| 24 | { |
| 25 | _uow = uow; |
| 26 | _userManager = userManager; |
| 27 | _configuration = configuration; |
| 28 | _mediator = mediator; |
| 29 | } |
| 30 | |
| 31 | public async Task<IdentityServiceResult> RegisterAsync(RegisterRequest request) |
| 32 | { |
| 33 | var expiresInSeconds = ResolveExpiresInSeconds(request.ExpiresInSeconds); |
| 34 | |
| 35 | var existing = await _userManager.FindByEmailAsync(request.Email); |
| 36 | if (existing != null) |
| 37 | { |
| 38 | return IdentityServiceResult.Fail( |
| 39 | $"User with email {request.Email} is already registered", |
| 40 | IdentityServiceErrorKind.BadRequest); |
| 41 | } |
| 42 | |
| 43 | var refreshToken = new AppRefreshToken(); |
| 44 | var appUser = new AppUser |
| 45 | { |
| 46 | Email = request.Email, |
| 47 | UserName = request.Email, |
| 48 | FirstName = request.FirstName, |
| 49 | LastName = request.LastName, |
| 50 | RefreshTokens = new List<AppRefreshToken> { refreshToken } |
| 51 | }; |
| 52 | refreshToken.AppUser = appUser; |
| 53 | |
| 54 | var createResult = await _userManager.CreateAsync(appUser, request.Password); |
| 55 | if (!createResult.Succeeded) |
| 56 | { |
| 57 | return IdentityServiceResult.Fail( |
| 58 | createResult.Errors.First().Description, |
| 59 | IdentityServiceErrorKind.BadRequest); |
| 60 | } |
| 61 | |
| 62 | await _userManager.AddToRoleAsync(appUser, "user"); |
| 63 | |
| 64 | var claimsResult = await _userManager.AddClaimsAsync(appUser, new List<Claim> |
| 65 | { |
| 66 | new(ClaimTypes.GivenName, appUser.FirstName), |
| 67 | new(ClaimTypes.Surname, appUser.LastName) |
| 68 | }); |
| 69 | if (!claimsResult.Succeeded) |
| 70 | { |
| 71 | return IdentityServiceResult.Fail( |
| 72 | claimsResult.Errors.First().Description, |
| 73 | IdentityServiceErrorKind.BadRequest); |
| 74 | } |
| 75 | |
| 76 | var reloaded = await _userManager.FindByEmailAsync(appUser.Email); |
| 77 | if (reloaded == null) |
| 78 | { |
| 79 | return IdentityServiceResult.Fail( |
| 80 | $"User with email {request.Email} is not found after registration", |
| 81 | IdentityServiceErrorKind.BadRequest); |
| 82 | } |
| 83 | |
| 84 | var jwt = await GenerateJwtAsync(reloaded, expiresInSeconds); |
| 85 | |
| 86 | return IdentityServiceResult.Ok(new IdentityJwtPayload |
| 87 | { |
| 88 | Jwt = jwt, |
| 89 | RefreshToken = refreshToken.RefreshToken, |
| 90 | FirstName = reloaded.FirstName, |
| 91 | LastName = reloaded.LastName |
| 92 | }); |
| 93 | } |
| 94 | |
| 95 | public async Task<IdentityServiceResult> LoginAsync(LoginRequest request) |
| 96 | { |
| 97 | var expiresInSeconds = ResolveExpiresInSeconds(request.ExpiresInSeconds); |
| 98 | |
| 99 | var appUser = await _userManager.FindByEmailAsync(request.Email); |
| 100 | if (appUser == null) |
| 101 | { |
| 102 | return IdentityServiceResult.Fail("User/Password problem", IdentityServiceErrorKind.NotFound); |
| 103 | } |
| 104 | |
| 105 | var passwordOk = await _userManager.CheckPasswordAsync(appUser, request.Password); |
| 106 | if (!passwordOk) |
| 107 | { |
| 108 | return IdentityServiceResult.Fail("User/Password problem", IdentityServiceErrorKind.NotFound); |
| 109 | } |
| 110 | |
| 111 | await _uow.RefreshTokens.RemoveExpiredForUserAsync(appUser.Id); |
| 112 | |
| 113 | var refreshToken = new AppRefreshToken |
| 114 | { |
| 115 | AppUserId = appUser.Id |
| 116 | }; |
| 117 | _uow.RefreshTokens.Add(refreshToken); |
| 118 | await _uow.SaveChangesAsync(); |
| 119 | |
| 120 | var jwt = await GenerateJwtAsync(appUser, expiresInSeconds); |
| 121 | |
| 122 | return IdentityServiceResult.Ok(new IdentityJwtPayload |
| 123 | { |
| 124 | Jwt = jwt, |
| 125 | RefreshToken = refreshToken.RefreshToken, |
| 126 | FirstName = appUser.FirstName, |
| 127 | LastName = appUser.LastName |
| 128 | }); |
| 129 | } |
| 130 | |
| 131 | public async Task<IdentityServiceResult> RefreshTokenAsync(RefreshRequest request) |
| 132 | { |
| 133 | var expiresInSeconds = ResolveExpiresInSeconds(request.ExpiresInSeconds); |
| 134 | |
| 135 | JwtSecurityToken? jwt; |
| 136 | try |
| 137 | { |
| 138 | jwt = new JwtSecurityTokenHandler().ReadJwtToken(request.Jwt); |
| 139 | } |
| 140 | catch (Exception) |
| 141 | { |
| 142 | return IdentityServiceResult.Fail("No token", IdentityServiceErrorKind.BadRequest); |
| 143 | } |
| 144 | |
| 145 | if (jwt == null) |
| 146 | { |
| 147 | return IdentityServiceResult.Fail("No token", IdentityServiceErrorKind.BadRequest); |
| 148 | } |
| 149 | |
| 150 | if (!IdentityHelpers.ValidateJWT( |
| 151 | request.Jwt, |
| 152 | _configuration.GetValue<string>("JWT:Key")!, |
| 153 | _configuration.GetValue<string>("JWT:Issuer")!, |
| 154 | _configuration.GetValue<string>("JWT:Audience")!)) |
| 155 | { |
| 156 | return IdentityServiceResult.Fail("JWT validation fail", IdentityServiceErrorKind.BadRequest); |
| 157 | } |
| 158 | |
| 159 | var userEmail = jwt.Claims.FirstOrDefault(x => x.Type == ClaimTypes.Email)?.Value; |
| 160 | if (userEmail == null) |
| 161 | { |
| 162 | return IdentityServiceResult.Fail("No email in jwt", IdentityServiceErrorKind.BadRequest); |
| 163 | } |
| 164 | |
| 165 | var appUser = await _userManager.FindByEmailAsync(userEmail); |
| 166 | if (appUser == null) |
| 167 | { |
| 168 | return IdentityServiceResult.Fail($"User with email {userEmail} not found", IdentityServiceErrorKind.NotFound); |
| 169 | } |
| 170 | |
| 171 | var matchingTokens = (await _uow.RefreshTokens |
| 172 | .GetUserActiveTokensAsync(appUser.Id, request.RefreshToken)).ToList(); |
| 173 | |
| 174 | if (matchingTokens.Count == 0) |
| 175 | { |
| 176 | return IdentityServiceResult.Fail( |
| 177 | "RefreshTokens collection is null or empty - 0", |
| 178 | IdentityServiceErrorKind.NotFound); |
| 179 | } |
| 180 | |
| 181 | if (matchingTokens.Count != 1) |
| 182 | { |
| 183 | return IdentityServiceResult.Fail( |
| 184 | "More than one valid refresh token found", |
| 185 | IdentityServiceErrorKind.NotFound); |
| 186 | } |
| 187 | |
| 188 | var refreshToken = matchingTokens.First(); |
| 189 | if (refreshToken.RefreshToken == request.RefreshToken) |
| 190 | { |
| 191 | refreshToken.PreviousRefreshToken = refreshToken.RefreshToken; |
| 192 | refreshToken.PreviousExpirationDT = DateTime.UtcNow.AddMinutes(1); |
| 193 | refreshToken.RefreshToken = Guid.NewGuid().ToString(); |
| 194 | refreshToken.ExpirationDT = DateTime.UtcNow.AddDays(7); |
| 195 | _uow.RefreshTokens.Update(refreshToken); |
| 196 | await _uow.SaveChangesAsync(); |
| 197 | } |
| 198 | |
| 199 | var newJwt = await GenerateJwtAsync(appUser, expiresInSeconds); |
| 200 | |
| 201 | return IdentityServiceResult.Ok(new IdentityJwtPayload |
| 202 | { |
| 203 | Jwt = newJwt, |
| 204 | RefreshToken = refreshToken.RefreshToken, |
| 205 | FirstName = appUser.FirstName, |
| 206 | LastName = appUser.LastName |
| 207 | }); |
| 208 | } |
| 209 | |
| 210 | public async Task<IdentityServiceResult> LogoutAsync(LogoutRequest request) |
| 211 | { |
| 212 | var appUser = await _uow.Users.GetByIdAsync(request.UserId); |
| 213 | if (appUser == null) |
| 214 | { |
| 215 | return IdentityServiceResult.Fail("User/Password problem", IdentityServiceErrorKind.NotFound); |
| 216 | } |
| 217 | |
| 218 | var tokens = (await _uow.RefreshTokens |
| 219 | .GetUserTokensByValueAsync(request.UserId, request.RefreshToken)).ToList(); |
| 220 | |
| 221 | foreach (var token in tokens) |
| 222 | { |
| 223 | _uow.RefreshTokens.Remove(token); |
| 224 | } |
| 225 | |
| 226 | var deleteCount = await _uow.SaveChangesAsync(); |
| 227 | return IdentityServiceResult.Logout(deleteCount); |
| 228 | } |
| 229 | |
| 230 | private int ResolveExpiresInSeconds(int requested) |
| 231 | { |
| 232 | if (requested <= 0) requested = int.MaxValue; |
| 233 | var configured = _configuration.GetValue<int>("JWT:ExpiresInSeconds"); |
| 234 | return requested < configured ? requested : configured; |
| 235 | } |
| 236 | |
| 237 | private async Task<string> GenerateJwtAsync(AppUser user, int expiresInSeconds) |
| 238 | { |
| 239 | var claims = new List<Claim> |
| 240 | { |
| 241 | new(ClaimTypes.NameIdentifier, user.Id.ToString()), |
| 242 | new(ClaimTypes.Email, user.Email ?? ""), |
| 243 | new(ClaimTypes.Name, user.UserName ?? user.Email ?? ""), |
| 244 | new(ClaimTypes.GivenName, user.FirstName), |
| 245 | new(ClaimTypes.Surname, user.LastName) |
| 246 | }; |
| 247 | |
| 248 | var userClaims = await _userManager.GetClaimsAsync(user); |
| 249 | foreach (var c in userClaims) |
| 250 | { |
| 251 | if (!claims.Any(existing => existing.Type == c.Type && existing.Value == c.Value)) |
| 252 | { |
| 253 | claims.Add(c); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | var roles = await _userManager.GetRolesAsync(user); |
| 258 | foreach (var role in roles) |
| 259 | { |
| 260 | claims.Add(new Claim(ClaimTypes.Role, role)); |
| 261 | } |
| 262 | |
| 263 | return IdentityHelpers.GenerateJwt( |
| 264 | claims, |
| 265 | _configuration.GetValue<string>("JWT:Key")!, |
| 266 | _configuration.GetValue<string>("JWT:Issuer")!, |
| 267 | _configuration.GetValue<string>("JWT:Audience")!, |
| 268 | expiresInSeconds); |
| 269 | } |
| 270 | } |
| 271 | |