У меня есть серверное приложение Blazor (Dotnet Core 3.1.2), которое я развертываю в службах приложений Azure. Приложение выполняет аутентификацию пользователей с помощью нашей Azure AD. Все работает нормально, работает локально на моей машине.
При развертывании в Службы приложений Azure приложение может пройти проверку подлинности, но при вызове URL-адреса / signin-oidc я получаю сообщение об ошибке:
Страница не может быть отображена из-за внутренней ошибки сервера.
Это, конечно, совершенно бесполезно, но в журналах потоковой передачи я получаю такую ошибку:
2020-04-21T15:14:17 sandboxproc.exe C:\DWASFiles\Sites\REDACTED-SITE-NAME\Temp\applicationhost.config True True
2020-04-21T15:14:17 env XPROC_TYPENAME=Microsoft.Web.Hosting.Transformers.ApplicationHost.SiteExtensionHelper, Microsoft.Web.Hosting, Version=7.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
2020-04-21T15:14:17 env XPROC_METHODNAME=Transform
2020-04-21T15:14:17 Start 'AspNetCoreRuntime.3.1.x86' site extension transform
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 7, 23)
2020-04-21T15:14:17 on /configuration/system.webServer
2020-04-21T15:14:17 Applying to 'configuration' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 8, 16)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime
2020-04-21T15:14:17 Applying to 'system.webServer' element (no source line info)
2020-04-21T15:14:17 Inserted 'runtime' element
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 9, 31)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables
2020-04-21T15:14:17 Applying to 'runtime' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 10, 146)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='PATH']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 11, 93)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_SKIP_FIRST_TIME_EXPERIENCE']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 12, 118)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_ROOT']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing Replace (transform line 17, 145)
2020-04-21T15:14:17 on /configuration/system.webServer/globalModules/add[@name='AspNetCoreModuleV2']
2020-04-21T15:14:17 Applying to 'add' element (no source line info)
2020-04-21T15:14:17 Replaced 'add' element
2020-04-21T15:14:17 EndSection Done executing Replace
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 24, 84)
2020-04-21T15:14:17 on /configuration/location/system.webServer/modules/add[@name='AspNetCoreModuleV2']
2020-04-21T15:14:17 Applying to 'modules' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 Successful 'D:\home\SiteExtensions\AspNetCoreRuntime.3.1.x86\applicationHost.xdt' site extension transform
2020-04-21T15:14:17 Start 'Microsoft.AspNetCore.AzureAppServices.SiteExtension' site extension transform
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 7, 23)
2020-04-21T15:14:17 on /configuration/system.webServer
2020-04-21T15:14:17 Applying to 'configuration' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 8, 16)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime
2020-04-21T15:14:17 Applying to 'system.webServer' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertIfMissing (transform line 9, 31)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables
2020-04-21T15:14:17 Applying to 'runtime' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertIfMissing
2020-04-21T15:14:17 StartSection Executing InsertOrAppendAttribute (transform line 10, 406)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_ADDITIONAL_DEPS']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertOrAppendAttribute
2020-04-21T15:14:17 StartSection Executing InsertOrAppendAttribute (transform line 11, 158)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='DOTNET_SHARED_STORE']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertOrAppendAttribute
2020-04-21T15:14:17 StartSection Executing InsertOrAppendAttribute (transform line 12, 146)
2020-04-21T15:14:17 on /configuration/system.webServer/runtime/environmentVariables/add[@name='ASPNETCORE_HOSTINGSTARTUPASSEMBLIES']
2020-04-21T15:14:17 Applying to 'environmentVariables' element (no source line info)
2020-04-21T15:14:17 EndSection Done executing InsertOrAppendAttribute
2020-04-21T15:14:17 Successful 'D:\home\SiteExtensions\Microsoft.AspNetCore.AzureAppServices.SiteExtension\applicationHost.xdt' site extension transform
2020-04-21T15:14:17 sandboxproc.exe complete successfully. Elapsed = 769.00 ms
2020-04-21T15:14:18 PID[25296] Information Loading modules from D:\Program Files (x86)\MiddlewareModules\1.2.7\Microsoft.Azure.AppService.Middleware.Modules.dll
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_LOGOUT_PATH' = '/.auth/logout'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_TOKEN_STORE' = 'True'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_ENABLED' = 'True'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_UNAUTHENTICATED_ACTION' = 'RedirectToLoginPage'
2020-04-21T15:14:19 PID[25296] Warning Error reading value from environment variable WEBSITE_AUTH_COOKIE_EXPIRATION_MODE. 0 value used for cookie expiration setting instead.
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_DEFAULT_PROVIDER' = 'AzureActiveDirectory'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_OPENID_ISSUER' = 'https://sts.windows.net/REDACTED/v2.0'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_CLIENT_ID' = 'REDACTED'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_LOGOUT_PATH' = '/.auth/logout'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_TOKEN_STORE' = 'True'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_ENABLED' = 'True'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_UNAUTHENTICATED_ACTION' = 'RedirectToLoginPage'
2020-04-21T15:14:19 PID[25296] Warning Error reading value from environment variable WEBSITE_AUTH_COOKIE_EXPIRATION_MODE. 0 value used for cookie expiration setting instead.
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_DEFAULT_PROVIDER' = 'AzureActiveDirectory'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_OPENID_ISSUER' = 'https://sts.windows.net/REDACTED/v2.0'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_CLIENT_ID' = 'REDACTED'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_SIGNING_KEY' = 'B7****'
2020-04-21T15:14:19 PID[25296] Verbose Detected application setting 'WEBSITE_AUTH_ENCRYPTION_KEY' = '66****'
2020-04-21T15:14:19 PID[25296] Verbose Received request: GET https://REDACTED-SITE-NAME.azurewebsites.net/
2020-04-21T15:14:19 PID[25296] Verbose Found 'AppServiceAuthSession' cookie for site 'REDACTED-SITE-NAME.azurewebsites.net'. Length: 984.
2020-04-21T15:14:20 PID[25296] Verbose Authenticated REDACTED-EMAIL successfully using 'Session Cookie' authentication.
2020-04-21T15:14:20 PID[25296] Verbose [Routes(Preview)] No authorization configuration was found.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>IIS Detailed Error - 500.79 - Internal Server Error</title>
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</head><body><div id="content"><div class="content-container"><h3>HTTP Error 500.79 - Internal Server Error</h3><h4>The page cannot be displayed because an internal server error has occurred.</h4></div><div class="content-container"><fieldset><h4>Most likely causes:</h4><ul> <li>IIS received the request; however, an internal error occurred during the processing of the request. The root cause of this error depends on which module handles the request and what was happening in the worker process when this error occurred.</li> <li>IIS was not able to access the web.config file for the Web site or application. This can occur if the NTFS permissions are set incorrectly.</li> <li>IIS was not able to process configuration for the Web site or application.</li> <li>The authenticated user does not have permission to use this DLL.</li> <li>The request is mapped to a managed handler but the .NET Extensibility Feature is not installed.</li> </ul></fieldset></div><div class="content-container"><fieldset><h4>Things you can try:</h4><ul> <li>Ensure that the NTFS permissions for the web.config file are correct and allow access to the Web server's machine account.</li> <li>Check the event logs to see if any additional information was logged.</li> <li>Verify the permissions for the DLL.</li> <li>Install the .NET Extensibility feature if the request is mapped to a managed handler.</li> <li>Create a tracing rule to track failed requests for this HTTP status code. For more information about creating a tracing rule for failed requests, click <a href="http://go.microsoft.com/fwlink/?LinkID=66439">here</a>. </li> </ul></fieldset></div>
<div class="content-container"><fieldset><h4>Detailed Error Information:</h4><div id="details-left"><table border="0" cellpadding="0" cellspacing="0"><tr class="alt"><th>Module</th><td> EasyAuthModule_32bit</td></tr><tr><th>Notification</th><td> AuthenticateRequest</td></tr><tr class="alt"><th>Handler</th><td> aspNetCore</td></tr><tr><th>Error Code</th><td> 0x80004005</td></tr>
</table></div><div id="details-right"><table border="0" cellpadding="0" cellspacing="0"><tr class="alt"><th>Requested URL</th><td> https://REDACTED-SITE-NAME:80/signin-oidc</td></tr><tr><th>Physical Path</th><td> D:\home\site\wwwroot\signin-oidc</td></tr><tr class="alt"><th>Logon Method</th><td> Not yet determined</td></tr><tr><th>Logon User</th><td> Not yet determined</td></tr>
</table><div class="clear"></div></div></fieldset></div>
<div class="content-container"><fieldset><h4>More Information:</h4>This error means that there was a problem while processing the request. The request was received by the Web server, but during processing a fatal error occurred, causing the 500 error.<p><a href="http://go.microsoft.com/fwlink/?LinkID=62293&IIS70Error=500,79,0x80004005,14393">View more information »</a></p><p>Microsoft Knowledge Base Articles:</p>
</fieldset></div></div></body></html>
2020-04-21T15:14:26 PID[25296] Verbose Received request: POST https://REDACTED-SITE-NAME.azurewebsites.net/signin-oidc
2020-04-21T15:14:26 PID[25296] Verbose Found 'AppServiceAuthSession' cookie for site 'REDACTED-SITE-NAME.azurewebsites.net'. Length: 984.
2020-04-21T15:14:26 PID[25296] Critical System.NullReferenceException: Object reference not set to an instance of an object.at Microsoft.Azure.AppService.Middleware.EasyAuthModule.IsCrossSiteRequestForgery(HttpRequestBase request, String& invalidReferer)
at Microsoft.Azure.AppService.Middleware.EasyAuthModule.<AuthenticateAsync>d__42.MoveNext()--- End of stack trace from previous location where exception was thrown ---at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)at Microsoft.Azure.AppService.Middleware.EasyAuthModule.<OnAuthenticateRequestAsync>d__24.MoveNext()--- End of stack trace from previous location where exception was thrown ---at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)at Microsoft.Azure.AppService.Middleware.HttpModuleDispatcher.<DispatchAsync>d__11.MoveNext()
2020-04-21T15:14:26 PID[25296] Information Sending response: 500.79 Internal Server Error
Любая помощь будет принята с благодарностью.
Попробуйте добавить URL своего приложения (https://XXXXX.azurewebsites.net/) в разделе Аутентификация / Авторизация-> Разрешенные URL-адреса внешнего перенаправления