aspose-cells-gridweb-cache-repro

This repository demonstates an incompatibility between Aspose.Cells.GribWeb and Zip Deploy a.k.a. "Run from package". This is important because Zip Deploy is the default deployment method when deploying to an Azure App Service via the AzureWebApp task in Azure Pipelines.

Zip Deployment adds an app setting WEBSITE_RUN_FROM_PACKAGE=1 to the App Service, which prevents modifications to the wwwroot directory. This causes Aspose.Cells.GribWeb to throw an exception since it tries to create files and directories under wwwroot.

This happens even if MainWeb.SessionStorePath is set to a directory outside of wwwroot. It appears that SessionStorePath only affects the location of the acwtemp directory, not the acwcache directory.

Reproduction Steps

1. Open this solution is Visual Studio 2019 or higher.
2. Run the website locally. It displays an Excel file with an image.
3. Create an Azure App Service (Windows) through Azure Portal or Visual Studio.
4. Use Visual Studio to create a publish profile for the App Service. Check "Run from package file".
5. Use Visual Studio to publish to the App Service via the publish profile you created.
6. Open the Azure-hosted web app in your browser.

Expected behavior: The Excel file is displayed.

Actual behavior: An exception message is displayed:

System.IO.FileNotFoundException: Could not find file 'D:\home\site\wwwroot\acwcache\836e7293-9d7e-f7b9-9b8b-06533d8cc546'.
File name: 'D:\home\site\wwwroot\acwcache\836e7293-9d7e-f7b9-9b8b-06533d8cc546'
   at System.IO.FileSystem.CreateDirectory(String fullPath, Byte[] securityDescriptor)
   at System.IO.Directory.CreateDirectory(String path)
   at �   .�(String �, Boolean �, �    �, String �)
   at Aspose.Cells.GridWeb.MainWeb.�()
   at Aspose.Cells.GridWeb.MainWeb.� ()
   at Aspose.Cells.GridWeb.MainWeb.OnPreRender()
   at Aspose.Cells.GridWeb.MainWeb.�(Boolean �)
   at Aspose.Cells.GridWeb.GridWeb2TagHelper.Process(TagHelperContext context, TagHelperOutput output)
   at Microsoft.AspNetCore.Razor.TagHelpers.TagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output)
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.RunAsync(TagHelperExecutionContext executionContext)
   at AspNetCore.Views_Home_Index.<ExecuteAsync>b__16_1() in C:\Projects\Compendia\aspose-cells-gridweb-cache-repro\AsposeCells\Views\Home\Index.cshtml:line 19
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync()
   at AspNetCore.Views_Home_Index.ExecuteAsync()
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ActionContext actionContext, IView view, ViewDataDictionary viewData, ITempDataDictionary tempData, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(ActionContext context, ViewResult result)
   at Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(ActionContext context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)