Deprecated: YoastSEO_Vendor\Symfony\Component\DependencyInjection\Container::__construct(): Implicitly marking parameter $parameterBag as nullable is deprecated, the explicit nullable type must be used instead in /home/nubelus/sharedove/adisjugo/wp-content/plugins/wordpress-seo/vendor_prefixed/symfony/dependency-injection/Container.php on line 60

Deprecated: YoastSEO_Vendor\League\OAuth2\Client\Provider\AbstractProvider::authorize(): Implicitly marking parameter $redirectHandler as nullable is deprecated, the explicit nullable type must be used instead in /home/nubelus/sharedove/adisjugo/wp-content/plugins/wordpress-seo/vendor_prefixed/league/oauth2-client/src/Provider/AbstractProvider.php on line 416

Deprecated: YoastSEO_Vendor\GuzzleHttp\Client::getConfig(): Implicitly marking parameter $option as nullable is deprecated, the explicit nullable type must be used instead in /home/nubelus/sharedove/adisjugo/wp-content/plugins/wordpress-seo/vendor_prefixed/guzzlehttp/guzzle/src/Client.php on line 181

Deprecated: YoastSEO_Vendor\GuzzleHttp\ClientInterface::getConfig(): Implicitly marking parameter $option as nullable is deprecated, the explicit nullable type must be used instead in /home/nubelus/sharedove/adisjugo/wp-content/plugins/wordpress-seo/vendor_prefixed/guzzlehttp/guzzle/src/ClientInterface.php on line 77
{"id":939,"date":"2012-06-09T18:20:04","date_gmt":"2012-06-09T16:20:04","guid":{"rendered":"https:\/\/blog.sharedove.com\/adisjugo\/?p=939"},"modified":"2012-06-09T18:20:04","modified_gmt":"2012-06-09T16:20:04","slug":"required-impersonation-level-was-not-provided-exception-on-opening-an-spsite-when-using-wcf","status":"publish","type":"post","link":"https:\/\/blog.sharedove.com\/adisjugo\/index.php\/2012\/06\/09\/required-impersonation-level-was-not-provided-exception-on-opening-an-spsite-when-using-wcf\/","title":{"rendered":"“Required impersonation level was not provided…” exception on opening an SPSite when using WCF"},"content":{"rendered":"

If you have ever tried open to a SharePoint Site from a WCF web service, you might got the “An error occurred loading a configuration file: Either a required impersonation level was not provided, or the provided impersonation level is invalid.” exception.<\/p>\n

You need to set your binding to basicHttpBinding, and security to TransportCredentialOnly and transport to clientCredentialType=”Ntlm”.<\/p>\n

On the client side, when initializing the service proxy, you must set the ClientCredential to DefaultNetworkCredential, and set the AllowedImpersonationLevel to “Impersonation”.<\/p>\n

The whole configuration and initialization on server and client side looks like:<\/p>\n

<\/p>\n

Server side – service configuration:<\/p>\n

\n...\n<system.web>\n  ...\n  <identity impersonate="true" \/>\n<\/system.web>\n...\n<system.serviceModel>\n  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" \/>\n  <bindings>\n    <basicHttpBinding>\n      <binding name="custombasicHttpBinding">\n        <security mode="TransportCredentialOnly">\n          <transport clientCredentialType="Ntlm" \/>\n        <\/security>\n      <\/binding>\n    <\/basicHttpBinding>\n  <\/bindings>\n  <behaviors>\n    <serviceBehaviors>\n      <behavior name="PlanB.ShareDove.ConferenceOrganization.ServiceLayer.WcfService.WcfServiceBehavior">\n        <serviceMetadata httpGetEnabled="true" \/>\n        <serviceDebug includeExceptionDetailInFaults="true" \/>\n      <\/behavior>\n    <\/serviceBehaviors>\n  <\/behaviors>\n  <services>\n    <service behaviorConfiguration="PlanB.ShareDove.ConferenceOrganization.ServiceLayer.WcfService.WcfServiceBehavior" name="PlanB.ShareDove.ConferenceOrganization.ServiceLayer.WcfService.WcfService">\n      <endpoint address="http:\/\/server\/SharedoveWcfService\/WcfService.svc" binding="basicHttpBinding" name="BasicHttpEndpoint" bindingConfiguration="custombasicHttpBinding" contract="PlanB.ShareDove.ConferenceOrganization.ServiceLayer.WcfService.IWcfService">\n      <\/endpoint>\n    <\/service>\n  <\/services>\n<\/system.serviceModel>\n<\/pre>\nOn the client side, you invoke the service methods like…<\/p>\n
\nSdService.WcfServiceClient client = new SdService.WcfServiceClient();\nclient.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;\nclient.ChannelFactory.Credentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;\n\n\/\/ call the service method...\nConferenceSessionLite[] sessions = client.GetAgendaForDay(new DateTime(2012, 06, 20));\n<\/pre>\nThis way, your credentials will be transported on the correct way, and you’ll be able to open the SPSite in the right context.<\/p>\n
\n\t\t\t  \n\t\t\t  <\/div><\/div>\n\t\t