public Uri BuildRedirectUri(AuthnRequestContext authnRequestContext)
{
var configuration = authnRequestContext.Configuration;
var authnRequest = new AuthnRequest
{
Id = "Imperial.flowz.co.uk",
IsPassive = false,
Destination = authnRequestContext.Destination.AbsoluteUri,
Version = "2.0",
IssueInstant = DateTime.UtcNow
};
authnRequest.Issuer = new NameId {
Value = "Imperial.flowz.co.uk"
};
var audienceRestrictions = new List <ConditionAbstract>();
var audienceRestriction = new AudienceRestriction {
Audience = new List <string>()
{
"Imperial.flowz.co.uk"
}
};
audienceRestrictions.Add(audienceRestriction);
authnRequest.Conditions = new Conditions {
Items = audienceRestrictions
};
var serialiser = new XMLSerialiser();
serialiser.XmlNamespaces.Add("samlp", Saml20Constants.Protocol);
serialiser.XmlNamespaces.Add("saml", Saml20Constants.Assertion);
var sb = new StringBuilder();
using (var ms = new MemoryStream())
{
serialiser.Serialize(ms, new[] { authnRequest });
ms.Position = 0;
var streamReader = new StreamReader(ms);
var xmlString = streamReader.ReadToEnd();
ms.Position = 0;
var encoded = this.DeflateEncode(xmlString);
var encodedEscaped = Uri.EscapeDataString(this.UpperCaseUrlEncode(encoded));
sb.Append("SAMLRequest=");
sb.Append(encodedEscaped);
this.SignRequest(sb);
var result = authnRequest.Destination + "?" + sb.ToString();
return(new Uri(result));
}
}
public static string Serialize(object o)
{
var xmlSerialiser = new XMLSerialiser();
xmlSerialiser.XmlNamespaces.Add("samlp", Saml20Constants.Protocol);
xmlSerialiser.XmlNamespaces.Add("saml", Saml20Constants.Assertion);
using (var ms = new MemoryStream())
{
xmlSerialiser.Serialize(ms, new[] { o });
ms.Position = 0;
var streamReader = new StreamReader(ms);
var xmlString = streamReader.ReadToEnd();
return(xmlString);
}
}