[BUG] New Page in Sub-Site Causes 404 Error by Redirecting to Root Site

[tvatavuk]

Oqtane Info

Version - 5.1.2 (and older 5.1.x versions)
Render Mode - Static (issue also occurs in Interactive mode)
Interactivity - Server (issue also occurs in Client interactivity)
Database - SQL Server

Describe the bug

After creating a new page within a sub-site, the browser navigates to an unexpected location within the root site. The new page is created in the sub-site as expected, but the browser either:

• Displays a 404 error page within the root site,
• Shows a page with the same name from the root site (if one exists),
• Renders some other strange issue on a page from the root site while keeping the route in the browser within the sub-site. This issue occurs when a new page is created using the Page Management feature from the admin dashboard.

Expected Behavior

The browser should either:

• navigate to the correct location of the newly created page within the sub-site, or
• navigate back to /sub-site/admin/pages if the new page is created from the Page Management feature in the admin dashboard.

Steps To Reproduce

1. Install a new Oqtane 5.1.2 release website on IIS from the release zip (example URL: https://oqtane-poc324.oqtane.me/) and log in as host.
2. Create a new page named 'p1' in the root site. This works as expected (URL: https://oqtane-poc324.oqtane.me/p1).
   
3. Create a sub-site named 'is01' (URL: https://oqtane-poc324.oqtane.me/is01). This works as expected.
4. Create a new page named 'pg1' in the sub-site 'is01'.
   
5. Observe that the browser navigates to a 404 page within the root site (URL: https://oqtane-poc324.oqtane.me/404).
   .

Here is other example, when new page 'pgg1' created from interactive web assembly sub-site 'ic01'.

Anything else?

from log

info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET https://oqtane-poc324.oqtane.me/api/Page?siteid=3 - 200 - application/json;+charset=utf-8 6.4846ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 POST https://oqtane-poc324.oqtane.me/is01/api/Page - application/json;+charset=utf-8 -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Oqtane.Controllers.PageController.Post (Oqtane.Server)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[102]
      Route matched with {action = "Post", controller = "Page", page = ""}. Executing controller action with signature Oqtane.Models.Page Post(Oqtane.Models.Page) on controller Oqtane.Controllers.PageController (Oqtane.Server).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor[1]
      Executing ObjectResult, writing value of type 'Oqtane.Models.Page'.
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[105]
      Executed action Oqtane.Controllers.PageController.Post (Oqtane.Server) in 17.8297ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Oqtane.Controllers.PageController.Post (Oqtane.Server)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 POST https://oqtane-poc324.oqtane.me/api/Page - 200 - application/json;+charset=utf-8 20.1753ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 PUT https://oqtane-poc324.oqtane.me/is01/api/Page/?siteid=3&pageid=84&parentid= - - 0
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Oqtane.Controllers.PageController.Put (Oqtane.Server)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[102]
      Route matched with {action = "Put", controller = "Page", page = ""}. Executing controller action with signature Void Put(Int32, Int32, System.Nullable`1[System.Int32]) on controller Oqtane.Controllers.PageController (Oqtane.Server).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[105]
      Executed action Oqtane.Controllers.PageController.Put (Oqtane.Server) in 50.3013ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Oqtane.Controllers.PageController.Put (Oqtane.Server)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 PUT https://oqtane-poc324.oqtane.me/api/Page/?siteid=3&pageid=84&parentid= - 200 - - 51.5129ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 POST https://oqtane-poc324.oqtane.me/is01/api/Log - application/json;+charset=utf-8 -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Oqtane.Controllers.LogController.Post (Oqtane.Server)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[102]
      Route matched with {action = "Post", controller = "Log", page = ""}. Executing controller action with signature Void Post(Oqtane.Models.Log) on controller Oqtane.Controllers.LogController (Oqtane.Server).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[105]
      Executed action Oqtane.Controllers.LogController.Post (Oqtane.Server) in 2.0121ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Oqtane.Controllers.LogController.Post (Oqtane.Server)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 POST https://oqtane-poc324.oqtane.me/api/Log - 200 - - 3.4011ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/2 GET https://oqtane-poc324.oqtane.me/pg1 - - -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Fallback {*path:nonfile}'
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Fallback {*path:nonfile}'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/2 GET https://oqtane-poc324.oqtane.me/pg1 - 302 - text/html;+charset=utf-8 51.0095ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/2 GET https://oqtane-poc324.oqtane.me/404 - - -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Fallback {*path:nonfile}'
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 GET https://oqtane-poc324.oqtane.me/api/User/name/tonci/-/?siteid=1 - - -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Oqtane.Controllers.UserController.Get (Oqtane.Server)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[102]
      Route matched with {action = "Get", controller = "User", page = ""}. Executing controller action with signature Oqtane.Models.User Get(System.String, System.String, System.String) on controller Oqtane.Controllers.UserController (Oqtane.Server).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor[1]
      Executing ObjectResult, writing value of type 'Oqtane.Models.User'.
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[105]
      Executed action Oqtane.Controllers.UserController.Get (Oqtane.Server) in 5.884ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Oqtane.Controllers.UserController.Get (Oqtane.Server)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET https://oqtane-poc324.oqtane.me/api/User/name/tonci/-/?siteid=1 - 200 - application/json;+charset=utf-8 6.6118ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 GET https://oqtane-poc324.oqtane.me/api/Setting?entityname=User&entityid=1 - - -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'Oqtane.Controllers.SettingController.Get (Oqtane.Server)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[102]
      Route matched with {action = "Get", controller = "Setting", page = ""}. Executing controller action with signature System.Collections.Generic.IEnumerable`1[Oqtane.Models.Setting] Get(System.String, Int32) on controller Oqtane.Controllers.SettingController (Oqtane.Server).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor[1]
      Executing ObjectResult, writing value of type 'System.Collections.Generic.List`1[[Oqtane.Models.Setting, Oqtane.Shared, Version=5.1.2.0, Culture=neutral, PublicKeyToken=null]]'.
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[105]
      Executed action Oqtane.Controllers.SettingController.Get (Oqtane.Server) in 0.8844ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Oqtane.Controllers.SettingController.Get (Oqtane.Server)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET https://oqtane-poc324.oqtane.me/api/Setting?entityname=User&entityid=1 - 200 - application/json;+charset=utf-8 1.3188ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Fallback {*path:nonfile}'
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'Microsoft.AspNetCore.Routing.RouteEndpoint'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/1.1 GET https://oqtane-poc324.oqtane.me/_blazor?id=BEaWVRM2_lidxJDviTIj3A - 101 - - 56124.0848ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/2 GET https://oqtane-poc324.oqtane.me/404 - 200 - text/html;+charset=utf-8 34.8462ms
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/2 POST https://oqtane-poc324.oqtane.me/_blazor/disconnect - multipart/form-data;+boundary=----WebKitFormBoundary1GuLckNvNfa1hQhL 359

[tvatavuk]

To quickly work around the issue, I modified SiteRouter.razor at line 560 to use !string.IsNullOrEmpty(alias.BaseUrl) instead of alias.BaseUrl != "".

However, this might not be an adequate solution. The problem likely stems from Null values being present where Empty.String was expected, indicating a some other deeper issue within the Oqtane codebase.