No admin by username, no Swagger in production, no exception text to clients

S14 and the privacy items of P0:
- signing up as "admin" no longer grants admin; `PrivaPub admin promote
  <root>` (and `demote`) does, run on the box against the configured
  database;
- Swagger is served in Development only;
- every service and controller answers "Something went wrong." where it
  used to send ex.Message, and the SMTP warnings no longer log the
  recipient's address;
- sign-up and login no longer log the IP, User-Agent and root id together;
- invitation sign-up takes the persona's own AvatarUserName (and optional
  AvatarName) instead of naming the avatar after the private login, and
  refuses a persona username equal to the login's. Invitation login uses
  the named persona, creating it if it is new;
- recovery mail comes from "PrivaPub", not collAnon's support address name.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB

PrivaPub/Controllers/ClientToServer/RootUserController.cs

@@ -10,6 +10,7 @@ using PrivaPub.ClientModels.Group;
 using PrivaPub.ClientModels.User;
 using PrivaPub.ClientModels.User.Avatar;
 using PrivaPub.Extensions;
+using PrivaPub.Federation.Actors;
 using PrivaPub.Models;
 using PrivaPub.Models.User;
 using PrivaPub.Resources;
@@ -28,6 +29,7 @@ namespace PrivaPub.Controllers.ClientToServer
 		readonly IRootUsersService UsersService;
 		readonly IGroupUsersService GroupUsersService;
 		readonly IPrivateAvatarUsersService AvatarUsersService;
+		readonly ILocalActorService LocalActors;
 		readonly AuthTokenManager AuthTokenManager;
 		readonly IOptionsMonitor<AppConfiguration> AppConfiguration;
 		readonly ILogger<RootUserController> Logger;
@@ -36,6 +38,7 @@ namespace PrivaPub.Controllers.ClientToServer
 		public RootUserController(IRootUsersService usersService,
 				IGroupUsersService groupUsersService,
 				IPrivateAvatarUsersService avatarUsersService,
+				ILocalActorService localActors,
 				AuthTokenManager authTokenManager,
 				IOptionsMonitor<AppConfiguration> appConfiguration,
 				IStringLocalizer<GenericRes> localizer,
@@ -44,6 +47,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			UsersService = usersService;
 			GroupUsersService = groupUsersService;
 			AvatarUsersService = avatarUsersService;
+			LocalActors = localActors;
 			AuthTokenManager = authTokenManager;
 			AppConfiguration = appConfiguration;
 			Localizer = localizer;
@@ -67,14 +71,12 @@ namespace PrivaPub.Controllers.ClientToServer
 
 				(var user, var userSettings) = ((RootUser, ViewUserSettings))result.Data;
 				var jwtUser = AuthTokenManager.GenerateToken(user, userSettings);
-				Logger.LogInformation(
-						$"{nameof(SignUp)}();IP:[{HttpContext.Connection?.RemoteIpAddress}];\nUser-Agent:[{Request.Headers["User-Agent"]}];\nUserId:[{user.ID}]");
 				return Ok(jwtUser);
 			}
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(SignUp)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -94,15 +96,13 @@ namespace PrivaPub.Controllers.ClientToServer
 				var (user, userSettings) =
 						((RootUser, ViewUserSettings))result.Data;
 				var jwtUser = AuthTokenManager.GenerateToken(user, userSettings);
-				Logger.LogInformation(
-						$"{nameof(Login)}();IP:[{HttpContext.Connection?.RemoteIpAddress}];\nUser-Agent:[{Request.Headers["User-Agent"]}];\nUserId:[{user.ID}]");
 
 				return Ok(jwtUser);
 			}
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(Login)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -118,6 +118,11 @@ namespace PrivaPub.Controllers.ClientToServer
 				if (!invitation.IsValid)
 					return StatusCode(invitation.StatusCode, invitation);
 
+				var avatarUserName = signUpForm.AvatarUserName?.Trim().ToLowerInvariant();
+				var personaProblem = await PersonaProblem(avatarUserName, signUpForm.UserName, token);
+				if (personaProblem != default)
+					return BadRequest(result.Invalidate(personaProblem));
+
 				result = await UsersService.SignUpAsync(signUpForm, signUpForm.InvitationCode);
 				if (!result.IsValid)
 					return StatusCode(result.StatusCode, result);
@@ -126,8 +131,8 @@ namespace PrivaPub.Controllers.ClientToServer
 				var avatar = await AvatarUsersService.InsertAvatar(new InsertAvatarForm
 				{
 					RootId = user.ID,
-					Name = user.UserName,
-					UserName = user.UserName,
+					Name = string.IsNullOrWhiteSpace(signUpForm.AvatarName) ? avatarUserName : signUpForm.AvatarName.Trim(),
+					UserName = avatarUserName,
 					Biography = string.Empty
 				});
 				if (!avatar.IsValid)
@@ -142,14 +147,12 @@ namespace PrivaPub.Controllers.ClientToServer
 				if (!joined.IsValid)
 					return StatusCode(joined.StatusCode, joined);
 
-				Logger.LogInformation(
-						$"{nameof(InvitationSignUp)}();IP:[{HttpContext.Connection?.RemoteIpAddress}];\nUser-Agent:[{Request.Headers["User-Agent"]}];\nUserId:[{user.ID}]");
 				return Ok(AuthTokenManager.GenerateToken(user, userSettings));
 			}
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(InvitationSignUp)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -171,14 +174,20 @@ namespace PrivaPub.Controllers.ClientToServer
 				var (user, userSettings) = ((RootUser, ViewUserSettings))result.Data;
 
 				var avatars = await AvatarUsersService.GetRootAvatars(user.ID, token);
-				var avatar = (avatars.Data as List<ViewAvatar>)?.FirstOrDefault();
+				var avatarUserName = loginForm.AvatarUserName?.Trim().ToLowerInvariant();
+				var avatar = string.IsNullOrEmpty(avatarUserName)
+					? (avatars.Data as List<ViewAvatar>)?.FirstOrDefault()
+					: (avatars.Data as List<ViewAvatar>)?.FirstOrDefault(a => a.UserName == avatarUserName);
 				if (avatar == default)
 				{
+					var personaProblem = await PersonaProblem(avatarUserName, user.UserName, token);
+					if (personaProblem != default)
+						return BadRequest(new WebResult().Invalidate(personaProblem));
 					var inserted = await AvatarUsersService.InsertAvatar(new InsertAvatarForm
 					{
 						RootId = user.ID,
-						Name = user.UserName,
-						UserName = user.UserName,
+						Name = string.IsNullOrWhiteSpace(loginForm.AvatarName) ? avatarUserName : loginForm.AvatarName.Trim(),
+						UserName = avatarUserName,
 						Biography = string.Empty
 					});
 					if (!inserted.IsValid)
@@ -195,17 +204,26 @@ namespace PrivaPub.Controllers.ClientToServer
 				if (!joined.IsValid)
 					return StatusCode(joined.StatusCode, joined);
 
-				Logger.LogInformation(
-						$"{nameof(InvitationLogin)}();IP:[{HttpContext.Connection?.RemoteIpAddress}];\nUser-Agent:[{Request.Headers["User-Agent"]}];\nUserId:[{user.ID}]");
 				return Ok(AuthTokenManager.GenerateToken(user, userSettings));
 			}
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(InvitationLogin)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
+		async Task<string> PersonaProblem(string avatarUserName, string rootUserName, CancellationToken token)
+		{
+			if (string.IsNullOrEmpty(avatarUserName))
+				return Localizer["Choose a username for your persona."];
+			if (string.Equals(avatarUserName, rootUserName?.Trim(), StringComparison.OrdinalIgnoreCase))
+				return Localizer["Your persona's username must differ from your login."];
+			if (await LocalActors.IsUserNameTaken(avatarUserName, token))
+				return Localizer["The username '{0}' is already take.", avatarUserName];
+			return default;
+		}
+
 		[HttpGet, Route("/clientapi/user/logout"), Authorize(Policy = Policies.IsUser)]
 		public IActionResult Logout()
 		{
@@ -217,7 +235,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(Logout)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -238,7 +256,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(UpdateUser)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -259,7 +277,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(UpdateUserSettings)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -280,7 +298,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(UpdatePassword)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -299,7 +317,7 @@ namespace PrivaPub.Controllers.ClientToServer
 		//	catch (Exception ex)
 		//	{
 		//		Logger.LogError(ex, $"{nameof(User)}.{nameof(GetUser)}()");
-		//		return BadRequest(result.Invalidate(ex.Message));
+		//		return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 		//	}
 		//}
 
@@ -317,7 +335,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(GetUserSettings)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -341,7 +359,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(RecoverPassword)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -364,7 +382,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(IsValidRecoveryCode)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -385,7 +403,7 @@ namespace PrivaPub.Controllers.ClientToServer
 			catch (Exception ex)
 			{
 				Logger.LogError(ex, $"{nameof(User)}.{nameof(ChangePassword)}()");
-				return BadRequest(result.Invalidate(ex.Message));
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 			}
 		}
 
@@ -406,7 +424,7 @@ namespace PrivaPub.Controllers.ClientToServer
 		//	catch (Exception ex)
 		//	{
 		//		Logger.LogError(ex, $"{nameof(User)}.{nameof(RemoveSelf)}()");
-		//		return BadRequest(result.Invalidate(ex.Message));
+		//		return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
 		//	}
 		//}