From 900bb5e845c3ad44defbd427cae3d44a4a43321f Mon Sep 17 00:00:00 2001
From: ivarlovlie <git@ivarlovlie.no>
Date: Sat, 25 Feb 2023 13:15:44 +0100
Subject: feat: Initial commit

---
 .../Internal/Account/CreateAccountRoute.cs         | 64 +++++++++++++++++++
 .../Internal/Account/CreateInitialAccountRoute.cs  | 32 ++++++++++
 .../Internal/Account/DeleteAccountRoute.cs         | 17 +++++
 .../Endpoints/Internal/Account/GetAccountRoute.cs  | 26 ++++++++
 .../src/Endpoints/Internal/Account/LoginRoute.cs   | 37 +++++++++++
 .../src/Endpoints/Internal/Account/LogoutRoute.cs  | 22 +++++++
 .../Internal/Account/UpdateAccountRoute.cs         | 59 +++++++++++++++++
 .../api/src/Endpoints/Internal/Account/_calls.http |  9 +++
 .../api/src/Endpoints/Internal/INT_EndpointBase.cs |  9 +++
 .../CreateResetRequestRoute.cs                     | 40 ++++++++++++
 .../FulfillResetRequestRoute.cs                    | 36 +++++++++++
 .../IsResetRequestValidRoute.cs                    | 26 ++++++++
 .../Internal/PasswordResetRequests/_calls.http     | 22 +++++++
 .../src/Endpoints/Internal/Root/GetSessionRoute.cs | 64 +++++++++++++++++++
 .../Internal/Root/IsAuthenticatedRoute.cs          | 10 +++
 .../Internal/Root/ReadConfigurationRoute.cs        | 17 +++++
 .../Internal/Root/RefreshConfigurationRoute.cs     | 15 +++++
 .../src/Endpoints/Internal/Root/ValidateRoute.cs   | 39 ++++++++++++
 code/api/src/Endpoints/Internal/RouteBaseAsync.cs  | 73 ++++++++++++++++++++++
 code/api/src/Endpoints/Internal/RouteBaseSync.cs   | 53 ++++++++++++++++
 20 files changed, 670 insertions(+)
 create mode 100644 code/api/src/Endpoints/Internal/Account/CreateAccountRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/CreateInitialAccountRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/DeleteAccountRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/GetAccountRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/LoginRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/LogoutRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/UpdateAccountRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Account/_calls.http
 create mode 100644 code/api/src/Endpoints/Internal/INT_EndpointBase.cs
 create mode 100644 code/api/src/Endpoints/Internal/PasswordResetRequests/CreateResetRequestRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/PasswordResetRequests/FulfillResetRequestRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/PasswordResetRequests/IsResetRequestValidRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/PasswordResetRequests/_calls.http
 create mode 100644 code/api/src/Endpoints/Internal/Root/GetSessionRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Root/IsAuthenticatedRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Root/ReadConfigurationRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Root/RefreshConfigurationRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/Root/ValidateRoute.cs
 create mode 100644 code/api/src/Endpoints/Internal/RouteBaseAsync.cs
 create mode 100644 code/api/src/Endpoints/Internal/RouteBaseSync.cs

(limited to 'code/api/src/Endpoints/Internal')

diff --git a/code/api/src/Endpoints/Internal/Account/CreateAccountRoute.cs b/code/api/src/Endpoints/Internal/Account/CreateAccountRoute.cs
new file mode 100644
index 0000000..ee136a9
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/CreateAccountRoute.cs
@@ -0,0 +1,64 @@
+using ILogger = Microsoft.Extensions.Logging.ILogger;
+
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class CreateAccountRoute : RouteBaseAsync.WithRequest<CreateAccountRoute.Payload>.WithActionResult
+{
+    private readonly MainAppDatabase _database;
+    private readonly UserService _userService;
+    private readonly IStringLocalizer<SharedResources> _localizer;
+    private readonly EmailValidationService _emailValidation;
+    private readonly ILogger<CreateAccountRoute> _logger;
+    private readonly TenantService _tenantService;
+
+    public CreateAccountRoute(UserService userService, MainAppDatabase database, IStringLocalizer<SharedResources> localizer, EmailValidationService emailValidation, TenantService tenantService, ILogger<CreateAccountRoute> logger) {
+        _userService = userService;
+        _database = database;
+        _localizer = localizer;
+        _emailValidation = emailValidation;
+        _tenantService = tenantService;
+        _logger = logger;
+    }
+
+    public class Payload
+    {
+        public string Username { get; set; }
+        public string Password { get; set; }
+    }
+
+    [AllowAnonymous]
+    [HttpPost("~/_/account/create")]
+    public override async Task<ActionResult> HandleAsync(Payload request, CancellationToken cancellationToken = default) {
+        var problem = new KnownProblemModel();
+        var username = request.Username.Trim();
+        if (username.IsValidEmailAddress() == false) {
+            problem.AddError("username", _localizer["{username} does not look like a valid email", username]);
+        } else if (_database.Users.FirstOrDefault(c => c.Username == username) != default) {
+            problem.AddError("username", _localizer["There is already a user registered with username: {username}", username]);
+        }
+
+        if (request.Password.Length < 6) {
+            problem.AddError("password", _localizer["The password requires 6 or more characters."]);
+        }
+
+        if (problem.Errors.Any()) {
+            problem.Title = _localizer["Invalid form"];
+            problem.Subtitle = _localizer["One or more fields is invalid"];
+            return KnownProblem(problem);
+        }
+
+        var user = new User(username);
+        var tenant = _tenantService.CreateTenant(user.DisplayName() + "'s tenant", user.Id, user.Username);
+        if (tenant == default) {
+            _logger.LogError("Not creating new user because the tenant could not be created");
+            return KnownProblem(_localizer["Could not create your account, try again soon."]);
+        }
+
+        user.HashAndSetPassword(request.Password);
+        _database.Users.Add(user);
+        await _database.SaveChangesAsync(cancellationToken);
+        await _userService.LogInUserAsync(HttpContext, user, false, cancellationToken);
+        await _emailValidation.SendValidationEmailAsync(user);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/CreateInitialAccountRoute.cs b/code/api/src/Endpoints/Internal/Account/CreateInitialAccountRoute.cs
new file mode 100644
index 0000000..e1d13dd
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/CreateInitialAccountRoute.cs
@@ -0,0 +1,32 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class CreateInitialAccountRoute : RouteBaseAsync.WithoutRequest.WithActionResult
+{
+    private readonly MainAppDatabase _database;
+    private readonly UserService _userService;
+
+    public CreateInitialAccountRoute(MainAppDatabase database, UserService userService) {
+        _database = database;
+        _userService = userService;
+    }
+
+    /// <summary>
+    /// Create an initial user account.
+    /// </summary>
+    /// <param name="cancellationToken"></param>
+    /// <returns></returns>
+    [AllowAnonymous]
+    [HttpGet("~/_/account/create-initial")]
+    public override async Task<ActionResult> HandleAsync(CancellationToken cancellationToken = default) {
+        if (_database.Users.Any()) {
+            return NotFound();
+        }
+
+        var user = new User("admin@ivarlovlie.no");
+        user.HashAndSetPassword("ivar123");
+        _database.Users.Add(user);
+        await _database.SaveChangesAsync(cancellationToken);
+        await _userService.LogInUserAsync(HttpContext, user, cancellationToken: cancellationToken);
+        return Redirect("/");
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/DeleteAccountRoute.cs b/code/api/src/Endpoints/Internal/Account/DeleteAccountRoute.cs
new file mode 100644
index 0000000..f487f74
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/DeleteAccountRoute.cs
@@ -0,0 +1,17 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class DeleteAccountRoute : RouteBaseAsync.WithoutRequest.WithActionResult
+{
+    private readonly UserService _userService;
+
+    public DeleteAccountRoute(UserService userService) {
+        _userService = userService;
+    }
+
+    [HttpDelete("~/_/account/delete")]
+    public override async Task<ActionResult> HandleAsync(CancellationToken cancellationToken = default) {
+        await _userService.LogOutUser(HttpContext, cancellationToken);
+        await _userService.MarkUserAsDeleted(LoggedInUser.Id, LoggedInUser.Id);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/GetAccountRoute.cs b/code/api/src/Endpoints/Internal/Account/GetAccountRoute.cs
new file mode 100644
index 0000000..121b40f
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/GetAccountRoute.cs
@@ -0,0 +1,26 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class GetAccountRoute : RouteBaseAsync.WithoutRequest.WithActionResult<LoggedInUserModel>
+{
+    private readonly MainAppDatabase _database;
+
+    public GetAccountRoute(MainAppDatabase database) {
+        _database = database;
+    }
+
+    [HttpGet("~/_/account")]
+    public override async Task<ActionResult<LoggedInUserModel>> HandleAsync(CancellationToken cancellationToken = default) {
+        var user = _database.Users
+            .Select(x => new {x.Username, x.Id})
+            .SingleOrDefault(c => c.Id == LoggedInUser.Id);
+        if (user != default) {
+            return Ok(new LoggedInUserModel {
+                Id = LoggedInUser.Id,
+                Username = LoggedInUser.Username
+            });
+        }
+
+        await HttpContext.SignOutAsync();
+        return Unauthorized();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/LoginRoute.cs b/code/api/src/Endpoints/Internal/Account/LoginRoute.cs
new file mode 100644
index 0000000..703f324
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/LoginRoute.cs
@@ -0,0 +1,37 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class LoginRoute : RouteBaseAsync.WithRequest<LoginRoute.Payload>.WithActionResult
+{
+    private readonly MainAppDatabase _database;
+    private readonly UserService _userService;
+    private readonly IStringLocalizer<SharedResources> _localizer;
+
+    public LoginRoute(MainAppDatabase database, UserService userService, IStringLocalizer<SharedResources> localizer) {
+        _database = database;
+        _userService = userService;
+        _localizer = localizer;
+    }
+
+    public class Payload
+    {
+        public string Username { get; set; }
+        public string Password { get; set; }
+        public bool Persist { get; set; }
+    }
+
+    [AllowAnonymous]
+    [HttpPost("~/_/account/login")]
+    public override async Task<ActionResult> HandleAsync(Payload request, CancellationToken cancellationToken = default) {
+        var user = _database.Users.FirstOrDefault(u => u.Username == request.Username);
+        if (user == default || !user.VerifyPassword(request.Password)) {
+            return KnownProblem(_localizer["Invalid username or password"]);
+        }
+
+        if (user.Deleted) {
+            return KnownProblem(_localizer["This user is deleted, please contact support@greatoffice.life if you think this is an error"]);
+        }
+
+        await _userService.LogInUserAsync(HttpContext, user, request.Persist, cancellationToken);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/LogoutRoute.cs b/code/api/src/Endpoints/Internal/Account/LogoutRoute.cs
new file mode 100644
index 0000000..295d9f6
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/LogoutRoute.cs
@@ -0,0 +1,22 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class LogoutRoute : RouteBaseAsync.WithoutRequest.WithActionResult
+{
+    private readonly UserService _userService;
+
+    public LogoutRoute(UserService userService) {
+        _userService = userService;
+    }
+
+    /// <summary>
+    /// Logout a user.
+    /// </summary>
+    /// <param name="cancellationToken"></param>
+    /// <returns></returns>
+    [AllowAnonymous]
+    [HttpGet("~/_/account/logout")]
+    public override async Task<ActionResult> HandleAsync(CancellationToken cancellationToken = default) {
+        await _userService.LogOutUser(HttpContext, cancellationToken);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/UpdateAccountRoute.cs b/code/api/src/Endpoints/Internal/Account/UpdateAccountRoute.cs
new file mode 100644
index 0000000..1081240
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/UpdateAccountRoute.cs
@@ -0,0 +1,59 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Account;
+
+public class UpdateAccountRoute : RouteBaseAsync.WithRequest<UpdateAccountRoute.Payload>.WithActionResult
+{
+    private readonly MainAppDatabase _database;
+    private readonly IStringLocalizer<SharedResources> _localizer;
+
+    public UpdateAccountRoute(MainAppDatabase database, IStringLocalizer<SharedResources> localizer) {
+        _database = database;
+        _localizer = localizer;
+    }
+
+    public class Payload
+    {
+        public string Username { get; set; }
+
+        public string Password { get; set; }
+    }
+
+    [HttpPost("~/_/account/update")]
+    public override async Task<ActionResult> HandleAsync(Payload request, CancellationToken cancellationToken = default) {
+        var user = _database.Users.SingleOrDefault(c => c.Id == LoggedInUser.Id);
+        if (user == default) {
+            await HttpContext.SignOutAsync();
+            return Unauthorized();
+        }
+
+        if (request.Password.IsNullOrWhiteSpace() && request.Username.IsNullOrWhiteSpace()) {
+            return KnownProblem(_localizer["Invalid request"], _localizer["No data was submitted"]);
+        }
+
+        var problem = new KnownProblemModel();
+
+        if (request.Password.HasValue() && request.Password.Length < 6) {
+            problem.AddError("password", _localizer["The new password must contain at least 6 characters"]);
+        }
+
+        if (request.Password.HasValue()) {
+            user.HashAndSetPassword(request.Password);
+        }
+
+        if (request.Username.HasValue() && !request.Username.IsValidEmailAddress()) {
+            problem.AddError("username", _localizer["The new username does not look like a valid email address"]);
+        }
+
+        if (problem.Errors.Any()) {
+            problem.Title = _localizer["Invalid form"];
+            problem.Subtitle = _localizer["One or more validation errors occured"];
+            return KnownProblem(problem);
+        }
+
+        if (request.Username.HasValue()) {
+            user.Username = request.Username.Trim();
+        }
+
+        await _database.SaveChangesAsync(cancellationToken);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Account/_calls.http b/code/api/src/Endpoints/Internal/Account/_calls.http
new file mode 100644
index 0000000..78380f5
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Account/_calls.http
@@ -0,0 +1,9 @@
+### Login
+POST http://localhost:5000/_/account/login
+Content-Type: application/json
+
+{
+  "username": "i@oiee.no",
+  "password": "ivar123",
+  "persist": false
+}
diff --git a/code/api/src/Endpoints/Internal/INT_EndpointBase.cs b/code/api/src/Endpoints/Internal/INT_EndpointBase.cs
new file mode 100644
index 0000000..699a976
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/INT_EndpointBase.cs
@@ -0,0 +1,9 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal;
+
+[Authorize]
+[ApiExplorerSettings(IgnoreApi = true)]
+[ApiVersionNeutral]
+public class INT_EndpointBase : EndpointBase
+{
+
+}
diff --git a/code/api/src/Endpoints/Internal/PasswordResetRequests/CreateResetRequestRoute.cs b/code/api/src/Endpoints/Internal/PasswordResetRequests/CreateResetRequestRoute.cs
new file mode 100644
index 0000000..c6ed417
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/PasswordResetRequests/CreateResetRequestRoute.cs
@@ -0,0 +1,40 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.PasswordResetRequests;
+
+public class CreateResetRequestRoute : RouteBaseAsync.WithRequest<CreateResetRequestRoute.Payload>.WithActionResult
+{
+    private readonly ILogger<CreateResetRequestRoute> _logger;
+    private readonly PasswordResetService _passwordResetService;
+    private readonly MainAppDatabase _database;
+    private readonly IStringLocalizer<SharedResources> _localizer;
+
+    public CreateResetRequestRoute(ILogger<CreateResetRequestRoute> logger, PasswordResetService passwordResetService, MainAppDatabase database, IStringLocalizer<SharedResources> localizer) {
+        _logger = logger;
+        _passwordResetService = passwordResetService;
+        _database = database;
+        _localizer = localizer;
+    }
+
+    public class Payload
+    {
+        public string Email { get; set; }
+    }
+
+    [AllowAnonymous]
+    [HttpPost("~/_/password-reset-request/create")]
+    public override async Task<ActionResult> HandleAsync(Payload payload, CancellationToken cancellationToken = default) {
+        if (payload.Email.IsNullOrWhiteSpace()) {
+            return KnownProblem(_localizer["Invalid form"],
+                _localizer["One or more fields is invalid"],
+                new() {{"email", new string[] {_localizer["Email is a required field"]}}}
+            );
+        }
+
+        var tz = GetRequestTimeZone(_logger);
+        _logger.LogInformation("Creating forgot password request with local date time: " + tz.LocalDateTime.ToString("u"));
+        var user = _database.Users.FirstOrDefault(c => c.Username.Equals(payload.Email));
+        // Don't inform the caller that the user does not exist.
+        if (user == default) return Ok();
+        await _passwordResetService.AddRequestAsync(user, tz.TimeZoneInfo, cancellationToken);
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/PasswordResetRequests/FulfillResetRequestRoute.cs b/code/api/src/Endpoints/Internal/PasswordResetRequests/FulfillResetRequestRoute.cs
new file mode 100644
index 0000000..9cd92bb
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/PasswordResetRequests/FulfillResetRequestRoute.cs
@@ -0,0 +1,36 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.PasswordResetRequests;
+
+public class FulfillResetRequestRoute : RouteBaseAsync.WithRequest<FulfillResetRequestRoute.Payload>.WithActionResult
+{
+    private readonly IStringLocalizer<SharedResources> _localizer;
+    private readonly PasswordResetService _passwordResetService;
+
+    public FulfillResetRequestRoute(PasswordResetService passwordResetService, IStringLocalizer<SharedResources> localizer) {
+        _passwordResetService = passwordResetService;
+        _localizer = localizer;
+    }
+
+    public class Payload
+    {
+        public Guid Id { get; set; }
+        public string NewPassword { get; set; }
+    }
+
+    [AllowAnonymous]
+    [HttpPost("~/_/password-reset-request/fulfill")]
+    public override async Task<ActionResult> HandleAsync(Payload request, CancellationToken cancellationToken = default) {
+        if (request.NewPassword.Length < 6) {
+            return KnownProblem(_localizer["Invalid form"],
+                _localizer["One or more fields is invalid"],
+                new Dictionary<string, string[]> {{"newPassword", new string[] {_localizer["The new password needs to be atleast 6 characters"]}}}
+            );
+        }
+
+        return await _passwordResetService.FulfillRequestAsync(request.Id, request.NewPassword, cancellationToken) switch {
+            FulfillPasswordResetRequestResult.REQUEST_NOT_FOUND => NotFound(),
+            FulfillPasswordResetRequestResult.USER_NOT_FOUND => NotFound(),
+            FulfillPasswordResetRequestResult.FULFILLED => Ok(),
+            _ => StatusCode(500)
+        };
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/PasswordResetRequests/IsResetRequestValidRoute.cs b/code/api/src/Endpoints/Internal/PasswordResetRequests/IsResetRequestValidRoute.cs
new file mode 100644
index 0000000..a87c0a9
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/PasswordResetRequests/IsResetRequestValidRoute.cs
@@ -0,0 +1,26 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.PasswordResetRequests;
+
+public class IsResetRequestValidRoute : RouteBaseAsync.WithRequest<Guid>.WithActionResult<IsResetRequestValidRoute.ResponseModel>
+{
+    private readonly PasswordResetService _passwordResetService;
+
+    public IsResetRequestValidRoute(PasswordResetService passwordResetService) {
+        _passwordResetService = passwordResetService;
+    }
+
+    public class ResponseModel
+    {
+        public ResponseModel(bool isValid) {
+            IsValid = isValid;
+        }
+
+        public bool IsValid { get; }
+    }
+
+    [AllowAnonymous]
+    [HttpGet("~/_/password-reset-request/is-valid")]
+    public override async Task<ActionResult<ResponseModel>> HandleAsync(Guid id, CancellationToken cancellationToken = default) {
+        var request = await _passwordResetService.GetRequestAsync(id, cancellationToken);
+        return Ok(request == default ? new ResponseModel(false) : new ResponseModel(!request.IsExpired));
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/PasswordResetRequests/_calls.http b/code/api/src/Endpoints/Internal/PasswordResetRequests/_calls.http
new file mode 100644
index 0000000..cfd2d58
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/PasswordResetRequests/_calls.http
@@ -0,0 +1,22 @@
+### Create request
+POST http://localhost:5000/_/password-reset-request/create
+Accept: application/json
+Content-Type: application/json
+
+{
+  "email": ""
+}
+
+### Fulfill request
+POST http://localhost:5000/_/password-reset-request/fulfill
+Accept: application/json
+Content-Type: application/json
+
+{
+  "id": "",
+  "newPassword": ""
+}
+
+### Is request valid
+GET http://localhost:5000/_/password-reset-request/is-valid?id=
+Accept: application/json
diff --git a/code/api/src/Endpoints/Internal/Root/GetSessionRoute.cs b/code/api/src/Endpoints/Internal/Root/GetSessionRoute.cs
new file mode 100644
index 0000000..82bbb11
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Root/GetSessionRoute.cs
@@ -0,0 +1,64 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Root;
+
+public class GetSessionRoute : RouteBaseSync.WithoutRequest.WithActionResult<GetSessionRoute.SessionResponse>
+{
+    private readonly MainAppDatabase _database;
+    private readonly ILogger<GetSessionRoute> _logger;
+
+    public GetSessionRoute(MainAppDatabase database, ILogger<GetSessionRoute> logger) {
+        _database = database;
+        _logger = logger;
+    }
+
+    public class SessionResponse
+    {
+        public string Username { get; set; }
+        public string DisplayName { get; set; }
+        public Guid UserId { get; set; }
+        public SessionTenant CurrentTenant { get; set; }
+        public List<SessionTenant> AvailableTenants { get; set; }
+
+        public class SessionTenant
+        {
+            public Guid Id { get; set; }
+            public string Name { get; set; }
+        }
+    }
+
+    [Authorize]
+    [HttpGet("~/_/session-data")]
+    public override ActionResult<SessionResponse> Handle() {
+        var user = _database.Users.Include(c => c.Tenants)
+            .Select(c => new User() {
+                Id = c.Id,
+                Username = c.Username,
+                FirstName = c.FirstName,
+                LastName = c.LastName,
+                Tenants = c.Tenants
+            }).FirstOrDefault(c => c.Id == LoggedInUser.Id);
+
+        if (user == default) {
+            return NotFound();
+        }
+
+        var currentTenant = user.Tenants.FirstOrDefault(c => c.Id == LoggedInUser.TenantId);
+        if (currentTenant == default) {
+            _logger.LogInformation("Could not find current tenant ({tenantId}) for user {userId}", LoggedInUser.TenantId, LoggedInUser.Id);
+            return NotFound();
+        }
+
+        return Ok(new SessionResponse() {
+            Username = user.Username,
+            DisplayName = user.DisplayName(),
+            UserId = user.Id,
+            CurrentTenant = new SessionResponse.SessionTenant() {
+                Id = currentTenant.Id,
+                Name = currentTenant.Name
+            },
+            AvailableTenants = user.Tenants.Select(c => new SessionResponse.SessionTenant() {
+                Id = c.Id,
+                Name = c.Name
+            }).ToList()
+        });
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Root/IsAuthenticatedRoute.cs b/code/api/src/Endpoints/Internal/Root/IsAuthenticatedRoute.cs
new file mode 100644
index 0000000..7bb0a86
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Root/IsAuthenticatedRoute.cs
@@ -0,0 +1,10 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Root;
+
+public class IsAuthenticatedRoute : RouteBaseSync.WithoutRequest.WithActionResult
+{
+    [Authorize]
+    [HttpGet("~/_/is-authenticated")]
+    public override ActionResult Handle() {
+        return Ok();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Root/ReadConfigurationRoute.cs b/code/api/src/Endpoints/Internal/Root/ReadConfigurationRoute.cs
new file mode 100644
index 0000000..7270fd8
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Root/ReadConfigurationRoute.cs
@@ -0,0 +1,17 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Root;
+
+public class ReadConfigurationRoute : RouteBaseSync.WithoutRequest.WithActionResult
+{
+    private readonly VaultService _vaultService;
+
+    public ReadConfigurationRoute(VaultService vaultService) {
+        _vaultService = vaultService;
+    }
+
+    [AllowAnonymous]
+    [HttpGet("~/_/configuration")]
+    public override ActionResult Handle() {
+        var config = _vaultService.GetCurrentAppConfiguration();
+        return Content(JsonSerializer.Serialize(config.GetPublicVersion()), "application/json");
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Root/RefreshConfigurationRoute.cs b/code/api/src/Endpoints/Internal/Root/RefreshConfigurationRoute.cs
new file mode 100644
index 0000000..fde4832
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Root/RefreshConfigurationRoute.cs
@@ -0,0 +1,15 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Root;
+
+public class RefreshConfigurationRoute : RouteBaseSync.WithoutRequest.WithoutResult
+{
+    private readonly VaultService _vaultService;
+
+    public RefreshConfigurationRoute(VaultService vaultService) {
+        _vaultService = vaultService;
+    }
+
+    [HttpGet("~/_/refresh-configuration")]
+    public override void Handle() {
+        _vaultService.RefreshCurrentAppConfigurationAsync();
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/Root/ValidateRoute.cs b/code/api/src/Endpoints/Internal/Root/ValidateRoute.cs
new file mode 100644
index 0000000..8f0882d
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/Root/ValidateRoute.cs
@@ -0,0 +1,39 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal.Root;
+
+public class ValidateRoute : RouteBaseSync.WithRequest<ValidateRoute.QueryParams>.WithActionResult
+{
+    private readonly EmailValidationService _emailValidation;
+    private readonly string CanonicalFrontendUrl;
+    private readonly ILogger<ValidateRoute> _logger;
+
+    public ValidateRoute(VaultService vaultService, EmailValidationService emailValidation, ILogger<ValidateRoute> logger) {
+        _emailValidation = emailValidation;
+        _logger = logger;
+        var c = vaultService.GetCurrentAppConfiguration();
+        CanonicalFrontendUrl = c.CANONICAL_FRONTEND_URL;
+    }
+
+    public class QueryParams
+    {
+        [FromQuery]
+        public Guid Id { get; set; }
+    }
+
+    [HttpGet("~/_/validate")]
+    public override ActionResult Handle([FromQuery] QueryParams request) {
+        var isFulfilled = _emailValidation.FulfillEmailValidationRequest(request.Id, LoggedInUser.Id);
+        if (!isFulfilled) {
+            _logger.LogError("Email validation fulfillment failed for request {requestId} and user {userId}", request.Id, LoggedInUser.Id);
+            return StatusCode(400, $"""
+<html>
+<body>
+<h3>The validation could not be completed</h3>
+<p>We are working on fixing this, in the meantime, have patience.</p>
+<a href="{CanonicalFrontendUrl}">Click here to go back to {CanonicalFrontendUrl}</a>
+</body>
+""");
+        }
+
+        return Redirect(CanonicalFrontendUrl + "/portal?msg=emailValidated");
+    }
+}
\ No newline at end of file
diff --git a/code/api/src/Endpoints/Internal/RouteBaseAsync.cs b/code/api/src/Endpoints/Internal/RouteBaseAsync.cs
new file mode 100644
index 0000000..a87facf
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/RouteBaseAsync.cs
@@ -0,0 +1,73 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal;
+
+/// <summary>
+/// A base class for an endpoint that accepts parameters.
+/// </summary>
+public static class RouteBaseAsync
+{
+	public static class WithRequest<TRequest>
+	{
+		public abstract class WithResult<TResponse> : INT_EndpointBase
+		{
+			public abstract Task<TResponse> HandleAsync(
+					TRequest request,
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithoutResult : INT_EndpointBase
+		{
+			public abstract Task HandleAsync(
+					TRequest request,
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithActionResult<TResponse> : INT_EndpointBase
+		{
+			public abstract Task<ActionResult<TResponse>> HandleAsync(
+					TRequest request,
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithActionResult : INT_EndpointBase
+		{
+			public abstract Task<ActionResult> HandleAsync(
+					TRequest request,
+					CancellationToken cancellationToken = default
+			);
+		}
+	}
+
+	public static class WithoutRequest
+	{
+		public abstract class WithResult<TResponse> : INT_EndpointBase
+		{
+			public abstract Task<TResponse> HandleAsync(
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithoutResult : INT_EndpointBase
+		{
+			public abstract Task HandleAsync(
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithActionResult<TResponse> : INT_EndpointBase
+		{
+			public abstract Task<ActionResult<TResponse>> HandleAsync(
+					CancellationToken cancellationToken = default
+			);
+		}
+
+		public abstract class WithActionResult : INT_EndpointBase
+		{
+			public abstract Task<ActionResult> HandleAsync(
+					CancellationToken cancellationToken = default
+			);
+		}
+	}
+}
diff --git a/code/api/src/Endpoints/Internal/RouteBaseSync.cs b/code/api/src/Endpoints/Internal/RouteBaseSync.cs
new file mode 100644
index 0000000..9d9bd5a
--- /dev/null
+++ b/code/api/src/Endpoints/Internal/RouteBaseSync.cs
@@ -0,0 +1,53 @@
+namespace IOL.GreatOffice.Api.Endpoints.Internal;
+
+/// <summary>
+/// A base class for an endpoint that accepts parameters.
+/// </summary>
+public static class RouteBaseSync
+{
+	public static class WithRequest<TRequest>
+	{
+		public abstract class WithResult<TResponse> : INT_EndpointBase
+		{
+			public abstract TResponse Handle(TRequest request);
+		}
+
+		public abstract class WithoutResult : INT_EndpointBase
+		{
+			public abstract void Handle(TRequest request);
+		}
+
+		public abstract class WithActionResult<TResponse> : INT_EndpointBase
+		{
+			public abstract ActionResult<TResponse> Handle(TRequest request);
+		}
+
+		public abstract class WithActionResult : INT_EndpointBase
+		{
+			public abstract ActionResult Handle(TRequest request);
+		}
+	}
+
+	public static class WithoutRequest
+	{
+		public abstract class WithResult<TResponse> : INT_EndpointBase
+		{
+			public abstract TResponse Handle();
+		}
+
+		public abstract class WithoutResult : INT_EndpointBase
+		{
+			public abstract void Handle();
+		}
+
+		public abstract class WithActionResult<TResponse> : INT_EndpointBase
+		{
+			public abstract ActionResult<TResponse> Handle();
+		}
+
+		public abstract class WithActionResult : INT_EndpointBase
+		{
+			public abstract ActionResult Handle();
+		}
+	}
+}
-- 
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