/// <summary>
/// Generates OpenID Providers that can authenticate using directed identity.
/// </summary>
/// <param name="xrds">The XrdsDocument instance to use in this process.</param>
/// <param name="opIdentifier">The OP Identifier entered (and resolved) by the user.</param>
/// <returns>A sequence of the providers that can offer directed identity services.</returns>
private static IEnumerable <ServiceEndpoint> GenerateOPIdentifierServiceEndpoints(this XrdsDocument xrds, Identifier opIdentifier)
{
return(from service in xrds.FindOPIdentifierServices()
from uri in service.UriElements
let protocol = Protocol.FindBestVersion(p => p.OPIdentifierServiceTypeURI, service.TypeElementUris)
let providerDescription = new ProviderEndpointDescription(uri.Uri, service.TypeElementUris)
select ServiceEndpoint.CreateForProviderIdentifier(opIdentifier, providerDescription, service.Priority, uri.Priority));
}
/// <summary>
/// Generates OpenID Providers that can authenticate using directed identity.
/// </summary>
/// <param name="xrds">The XrdsDocument instance to use in this process.</param>
/// <param name="opIdentifier">The OP Identifier entered (and resolved) by the user. Essentially the user-supplied identifier.</param>
/// <returns>A sequence of the providers that can offer directed identity services.</returns>
private static IEnumerable <IdentifierDiscoveryResult> GenerateOPIdentifierServiceEndpoints(this IEnumerable <XrdElement> xrds, Identifier opIdentifier)
{
Requires.NotNull(xrds, "xrds");
Requires.NotNull(opIdentifier, "opIdentifier");
return(from service in xrds.FindOPIdentifierServices()
from uri in service.UriElements
let protocol = Protocol.FindBestVersion(p => p.OPIdentifierServiceTypeURI, service.TypeElementUris)
let providerDescription = new ProviderEndpointDescription(uri.Uri, service.TypeElementUris)
select IdentifierDiscoveryResult.CreateForProviderIdentifier(opIdentifier, providerDescription, service.Priority, uri.Priority));
}
/// <summary>
/// Generates OpenID Providers that can authenticate using directed identity.
/// </summary>
/// <param name="xrds">The XrdsDocument instance to use in this process.</param>
/// <param name="opIdentifier">The OP Identifier entered (and resolved) by the user. Essentially the user-supplied identifier.</param>
/// <returns>A sequence of the providers that can offer directed identity services.</returns>
private static IEnumerable <IdentifierDiscoveryResult> GenerateOPIdentifierServiceEndpoints(this IEnumerable <XrdElement> xrds, Identifier opIdentifier)
{
Contract.Requires <ArgumentNullException>(xrds != null);
Contract.Requires <ArgumentNullException>(opIdentifier != null);
Contract.Ensures(Contract.Result <IEnumerable <IdentifierDiscoveryResult> >() != null);
return(from service in xrds.FindOPIdentifierServices()
from uri in service.UriElements
let protocol = Protocol.FindBestVersion(p => p.OPIdentifierServiceTypeURI, service.TypeElementUris)
let providerDescription = new ProviderEndpointDescription(uri.Uri, service.TypeElementUris)
select IdentifierDiscoveryResult.CreateForProviderIdentifier(opIdentifier, providerDescription, service.Priority, uri.Priority));
}
/// <summary>
/// Initializes a new instance of the <see cref="ProviderEndpointDescription"/> class.
/// </summary>
/// <param name="providerEndpoint">The URI the provider listens on for OpenID requests.</param>
/// <param name="serviceTypeURIs">The set of services offered by this endpoint.</param>
internal ProviderEndpointDescription(Uri providerEndpoint, IEnumerable <string> serviceTypeURIs)
{
ErrorUtilities.VerifyArgumentNotNull(providerEndpoint, "providerEndpoint");
ErrorUtilities.VerifyArgumentNotNull(serviceTypeURIs, "serviceTypeURIs");
this.Endpoint = providerEndpoint;
this.Capabilities = new ReadOnlyCollection <string>(serviceTypeURIs.ToList());
Protocol opIdentifierProtocol = Protocol.FindBestVersion(p => p.OPIdentifierServiceTypeURI, serviceTypeURIs);
Protocol claimedIdentifierProviderVersion = Protocol.FindBestVersion(p => p.ClaimedIdentifierServiceTypeURI, serviceTypeURIs);
if (opIdentifierProtocol != null)
{
this.ProtocolVersion = opIdentifierProtocol.Version;
}
else if (claimedIdentifierProviderVersion != null)
{
this.ProtocolVersion = claimedIdentifierProviderVersion.Version;
}
ErrorUtilities.VerifyProtocol(this.ProtocolVersion != null, OpenIdStrings.ProviderVersionUnrecognized, this.Endpoint);
}
/// <summary>
/// Initializes a new instance of the <see cref="ProviderEndpointDescription"/> class.
/// </summary>
/// <param name="providerEndpoint">The URI the provider listens on for OpenID requests.</param>
/// <param name="serviceTypeURIs">The set of services offered by this endpoint.</param>
internal ProviderEndpointDescription(Uri providerEndpoint, IEnumerable <string> serviceTypeURIs)
{
Contract.Requires <ArgumentNullException>(providerEndpoint != null);
Contract.Requires <ArgumentNullException>(serviceTypeURIs != null);
this.Uri = providerEndpoint;
this.Capabilities = new ReadOnlyCollection <string>(serviceTypeURIs.ToList());
Protocol opIdentifierProtocol = Protocol.FindBestVersion(p => p.OPIdentifierServiceTypeURI, serviceTypeURIs);
Protocol claimedIdentifierProviderVersion = Protocol.FindBestVersion(p => p.ClaimedIdentifierServiceTypeURI, serviceTypeURIs);
if (opIdentifierProtocol != null)
{
this.Version = opIdentifierProtocol.Version;
}
else if (claimedIdentifierProviderVersion != null)
{
this.Version = claimedIdentifierProviderVersion.Version;
}
else
{
ErrorUtilities.ThrowProtocol(OpenIdStrings.ProviderVersionUnrecognized, this.Uri);
}
}
