I have an MVC project built in .Net Core 2.2 for Azure. The project runs locally, but when I upload it to Azure, I receive an error that I do not have permission to read this file or directory, and none of the pages are accessible. If I remove the
web.config file from the project, rebuild and upload again, it works. I can also attach an empty web.config and that also works.
With asp.net core, the web.config is for configuring the core module. The <location> and <system.web> Are not supported. You should only have <system.webServers> And use it to configure asp.net core module.
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Azure MVC, adding web.config blocks access to website
Jan 28, 2020 02:24 PM|Terry Stone|LINK
I have an MVC project built in .Net Core 2.2 for Azure. The project runs locally, but when I upload it to Azure, I receive an error that I do not have permission to read this file or directory, and none of the pages are accessible. If I remove the web.config file from the project, rebuild and upload again, it works. I can also attach an empty web.config and that also works.
THIS WORKS
THIS DOES NOT WORK
The path "EditPhrase/BuildPartial" is a POST action in the controller EditPhraseController.
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Re: Azure MVC, adding web.config blocks access to website
Jan 29, 2020 04:01 AM|Yongqing Yu|LINK
Hi Terry,
As far as I know, just because you published to azure, the path has changed.
You need to change your path to a virtual path, like below:
For more details, you could refer to these links:
How To Make Application and Directory-Specific Configuration Settings in an ASP.NET Application
Location + Path in web.config not working in Azure
Best Regards,
YongQing.
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Re: Azure MVC, adding web.config blocks access to website
Jan 29, 2020 11:23 AM|Terry Stone|LINK
Thank you for your reply. Adding the location marker '~' did not help.
After the web.config is published to Azure, it changes to the following:
<?xml version="1.0" encoding="utf-8"?> <configuration> <location path="~/EditPhrase/BuildPartial"> <system.web> <httpRuntime maxUrlLength="300000" maxQueryStringLength="300000" maxRequestLength="100000" /> </system.web> <system.webServer> <security> <requestFiltering> <requestLimits maxQueryString="300000" maxUrl="100000" /> </requestFiltering> </security> <handlers> <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" /> </handlers> <aspNetCore processPath="dotnet" arguments=".\MvcApp.dll" stdoutLogEnabled="false" stdoutLogFile="\\?\%home%\LogFiles\stdout" hostingModel="InProcess" /> </system.webServer> </location> <location path="~/Flagged/UpdatePost"> <system.web> <httpRuntime maxUrlLength="300000" maxQueryStringLength="300000" maxRequestLength="100000" /> </system.web> <system.webServer> <security> <requestFiltering> <requestLimits maxQueryString="300000" maxUrl="100000" /> </requestFiltering> </security> </system.webServer> </location> </configuration>The publishing process has added new tags for "handlers" and "aspNetCore" to one of the locations, but no the other.
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Re: Azure MVC, adding web.config blocks access to website
Jan 29, 2020 03:15 PM|bruce (sqlwork.com)|LINK
With asp.net core, the web.config is for configuring the core module. The <location> and <system.web> Are not supported. You should only have <system.webServers> And use it to configure asp.net core module.
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Re: Azure MVC, adding web.config blocks access to website
Jan 31, 2020 01:40 PM|Terry Stone|LINK
Thank you for the reply. Yes, the following works on both the development server and Azure:
<configuration> <system.webServer> <security> <requestFiltering> <requestLimits maxQueryString="300000" maxUrl="100000" /> </requestFiltering> </security> </system.webServer></configuration>
But it does apply to the whole website. Is it possible to limit the exceptional request limits to specific locations?
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Re: Azure MVC, adding web.config blocks access to website
Jan 31, 2020 04:50 PM|bruce (sqlwork.com)|LINK
you would need to use asp.net core middleware to do this.
note: browsers (and proxy servers) often limit the url + query string length to 4k (2k if unicode), not sure why you are setting such high values.