public class CustomClaimProvider : SPClaimProvider
{
// I have added following two objects into the custom claims provider class
// which inherits from the class SPClaimProvider
protected SPTrustedLoginProvider SPTrust;
protected string IssuerName => SPOriginalIssuers.Format(SPOriginalIssuerType.TrustedProvider, SPTrust.Name);
// I have added following two methods into the custom claims provider class
// which inherits from the class SPClaimProvider
public static SPTrustedLoginProvider GetSPTrustAssociatedWithCP(string providerInternalName)
{
var lp = SPSecurityTokenServiceManager.Local.TrustedLoginProviders.Where(x => String.Equals(x.ClaimProviderName, providerInternalName, StringComparison.OrdinalIgnoreCase));
if (lp != null && lp.Count() == 1)
{
return lp.First();
}
return null;
}
protected bool Initialize()
{
bool initialized = false;
if (SPTrust == null)
{
SPTrust = GetSPTrustAssociatedWithCP(ProviderInternalName);
if (SPTrust != null)
{
initialized = true;
}
}
else
{
initialized = true;
}
return initialized;
}
// I have called the method Initialize in following four methods
protected override void FillHierarchy
protected override void FillResolve(Uri context, string[] entityTypes, string resolveInput, List<PickerEntity> resolved)
protected override void FillResolve(Uri context, string[] entityTypes, SPClaim resolveInput, List<PickerEntity> resolved)
protected override void FillSearch
// I have replaced the calls of the protected SPClaim CreateClaim(string
// claimType, string value, string valueType); method which is inherited from
// the SPClaimProvider with following method. This Method below has one
// parameter more and therefore does not conflict with the method from the
// SPCLaimProvider class. The important part of this method is the parameter
// IssuerName. Because this value builds the middle part of the token. The token
// must have this part identical with the token issuer to be able to login into
// the SharePoint site.
protected virtual SPClaim CreateClaim(string type, string value, string valueType, bool inputHasKeyword)
{
return new SPClaim(type, value, valueType, IssuerName);
}
}
Following source helped me to solve this issue:
https://ldapcp.com/
