Value cannot be null. (Parameter 'hostName') error when creating a service account

[dan-close]

Severity

1 client reporting issue

Version

2023.4.8354

Latest Version

I could reproduce the problem in the latest build

What happened?

When LDAP authentication is enabled, and the Server field is left blank, you receive a 'Value cannot be null. (Parameter 'hostName')' error when attempting to create a new service account User.

Reproduction

1. Enable LDAP authentication, but leave the Server field blank.
2. Attempt to create a new User with the The user is a service account option checked.
3. Once you attempt to save, you will encounter the error.

Error and Stacktrace

2024-03-13 12:15:05.2961   2168     92  INFO  "HTTPS" "POST" to "octopusurl""/api/users" "completed" with 400 in 00:00:00.1558637 (155ms) by "Admin"
System.ArgumentNullException: Value cannot be null. (Parameter 'hostName')
   at System.Net.Dns.GetHostEntryOrAddressesCoreAsync(String hostName, Boolean justReturnParsedIp, Boolean throwOnIIPAny, Boolean justAddresses, AddressFamily family, CancellationToken cancellationToken)
   at System.Net.Dns.GetHostAddressesAsync(String hostNameOrAddress)
   at Novell.Directory.Ldap.Connection.Connect(String host, Int32 port, Int32 semaphoreId)
   at Novell.Directory.Ldap.Connection.Connect(String host, Int32 port)
   at Novell.Directory.Ldap.LdapConnection.Connect(String host, Int32 port)
   at Octopus.Server.Extensibility.Authentication.Ldap.Ldap.LdapContextProvider.GetContext()
   at Octopus.Server.Extensibility.Authentication.Ldap.Ldap.UserMatcher.Match(String name, CancellationToken cancellationToken)
   at Octopus.Core.Features.Users.CreateUserCommandHandler.<>c__DisplayClass5_0.<Handle>b__1(ICanMatchExternalUser x) in ./source/Octopus.Core/Features/Users/CreateUserCommandHandler.cs:line 43
   at System.Linq.Enumerable.SelectArrayIterator`2.MoveNext()
   at System.Linq.Enumerable.WhereEnumerableIterator`1.ToArray()
   at Octopus.Core.Features.Users.CreateUserCommandHandler.Handle(CreateUserCommand command, CancellationToken cancellationToken) in ./source/Octopus.Core/Features/Users/CreateUserCommandHandler.cs:line 41
   at Octopus.Core.Infrastructure.Mediator.AutofacMediator.Do[TCommand,TResponse](ICommand`2 command, CancellationToken cancellationToken) in ./source/Octopus.Core/Infrastructure/Mediator/AutofacMediator.cs:line 28
   at Octopus.Core.Infrastructure.Mediator.Decorators.SystemComponentModelValidationDecorator.Do[TCommand,TResponse](ICommand`2 command, CancellationToken cancellationToken) in ./source/Octopus.Core/Infrastructure/Mediator/Decorators/SystemComponentModelValidationDecorator.cs:line 40
   at Octopus.Core.Infrastructure.Mediator.Decorators.FluentValidationsDecorator.Do[TCommand,TResponse](ICommand`2 command, CancellationToken cancellationToken) in ./source/Octopus.Core/Infrastructure/Mediator/Decorators/FluentValidationsDecorator.cs:line 51
   at Octopus.Core.Infrastructure.Mediator.Decorators.MessageBusSiphoningDecorator.Do[TCommand,TResponse](ICommand`2 command, CancellationToken cancellationToken) in ./source/Octopus.Core/Infrastructure/Mediator/Decorators/MessageBusSiphoningDecorator.cs:line 32
   at Octopus.Server.Web.Controllers.Users.CreateUserController.CreateUser(CreateUserCommand command, CancellationToken cancellationToken) in ./source/Octopus.Server/Web/Controllers/Users/CreateUserController.cs:line 23
   at lambda_method189088(Closure , Object )
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Logged|12_1(ControllerActionInvoker invoker)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Octopus.Server.Web.Middleware.BoundaryTrailerRewriteMiddleware.Invoke(HttpContext context, IAutomationContext automationContext) in ./source/Octopus.Server/Web/Middleware/BoundaryTrailerRewriteMiddleware.cs:line 44
   at Octopus.Server.Web.Infrastructure.Authentication.AuthorizationMiddlewareResultHandler.HandleAsync(RequestDelegate next, HttpContext context, AuthorizationPolicy policy, PolicyAuthorizationResult authorizeResult) in ./source/Octopus.Server/Web/Infrastructure/Authentication/AuthorizationMiddlewareResultHandler.cs:line 50
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Octopus.Server.Web.UnitOfWorkMiddleware.InvokeAsync(HttpContext httpContext, IUnitOfWork unitOfWork) in ./source/Octopus.Server/Web/UnitOfWorkMiddleware.cs:line 46
   at Octopus.Server.Web.UnitOfWorkMiddleware.InvokeAsync(HttpContext httpContext, IUnitOfWork unitOfWork) in ./source/Octopus.Server/Web/UnitOfWorkMiddleware.cs:line 46
   at Octopus.Server.Web.Middleware.OctopusClientOldVersionWarningMiddleware.InvokeAsync(HttpContext context, IAutomationContext automationContext) in ./source/Octopus.Server/Web/Middleware/OctopusClientOldVersionWarningMiddleware.cs:line 51
   at Octopus.Server.Web.Middleware.DynamicContentHeadersMiddleware.InvokeAsync(HttpContext context) in ./source/Octopus.Server/Web/Middleware/DynamicContentHeadersMiddleware.cs:line 51
   at Octopus.Server.Web.Middleware.MaintenanceModeMiddleware.InvokeAsync(HttpContext context) in ./source/Octopus.Server/Web/Middleware/MaintenanceModeMiddleware.cs:line 59
   at Octopus.Server.Web.Middleware.OctopusAuthenticationMiddleware.InvokeAsync(HttpContext context, IUserAuthenticator userAuthenticator, IAuthCookieService authCookieService, IWebAuthCache authCache, ILogger logger) in ./source/Octopus.Server/Web/Middleware/OctopusAuthenticationMiddleware.cs:line 59
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Octopus.Server.Web.Middleware.LegacyRequestLoggerMiddleware.InvokeAsync(HttpContext context) in ./source/Octopus.Server/Web/Middleware/LegacyRequestLoggerMiddleware.cs:line 44
   at Octopus.Server.Web.Middleware.TelemetryMiddleware.InvokeAsync(HttpContext context) in ./source/Octopus.Server/Web/Middleware/TelemetryMiddleware.cs:line 65
   at Octopus.Server.Web.Middleware.ErrorHandlingMiddleware.InvokeAsync(HttpContext context) in ./source/Octopus.Server/Web/Middleware/ErrorHandlingMiddleware.cs:line 50

More Information

No response

Workaround

The workaround is to disable LDAP authentication if it's not being used or populate the Server field if it is being used.

[michelle-luana]

The Octopus engineering team has reviewed this issue.
After careful consideration, we’ve classed this low priority. This means we won’t work on it in the near future. We prioritize issues based on the number of people affected, the impact type, and available workarounds. If you’ve encountered this issue and haven’t informed our support team, please email [email protected]. Knowing how many people this issue affects helps us determine its priority.