private SamlSecurityToken GetMsoStsSAMLToken()
{
// Makes a request that conforms with the WS-Trust standard to
// Microsoft Online Services Security Token Service to get a SAML
// security token back so we can then use it to sign the user to SPO
SamlSecurityToken samlST = new SamlSecurityToken();
byte[] saml11RTBytes = null;
string logonToken = null;
// find out whether the user's domain is a federated domain
this.adfsAuthUrl = GetAdfsAuthUrl();
// get logon token using windows integrated auth when the user is connected to the corporate network
if (this.adfsAuthUrl != null && this.useIntegratedWindowsAuth)
{
UriBuilder ub = new UriBuilder();
ub.Scheme = this.adfsAuthUrl.Scheme;
ub.Host = this.adfsAuthUrl.Host;
ub.Path = string.Format("{0}auth/integrated/", this.adfsAuthUrl.LocalPath);
// specify in the query string we want a logon token to present to the Microsoft Federation Gateway
// for the corresponding user
ub.Query = String.Format("{0}&wa=wsignin1.0&wtrealm=urn:federation:MicrosoftOnline", this.adfsAuthUrl.Query.Remove(0, 1)).
Replace("&username="******"&username={0}", this.username));
this.adfsIntegratedAuthUrl = ub.Uri;
// get the logon token from the corporate ADFS using Windows Integrated Auth
logonToken = GetAdfsSAMLTokenWinAuth();
if (!string.IsNullOrEmpty(logonToken))
{
// generate the WS-Trust security token request SOAP message passing in the logon token we got from the corporate ADFS
// and the site we want access to
saml11RTBytes = Encoding.UTF8.GetBytes(ParameterizeSoapRequestTokenMsgWithAssertion(
this.spSiteUrl.ToString(),
logonToken,
msoStsUrl));
}
}
// get logon token using the user's corporate credentials. Likely when not connected to the corporate network
if (logonToken == null && this.adfsAuthUrl != null && !string.IsNullOrEmpty(password))
{
logonToken = GetAdfsSAMLTokenUsernamePassword(); // get the logon token from the corporate ADFS proxy usernamemixed enpoint
if (logonToken != null)
{
// generate the WS-Trust security token request SOAP message passing in the logon token we got from the corporate ADFS
// and the site we want access to
saml11RTBytes = Encoding.UTF8.GetBytes(ParameterizeSoapRequestTokenMsgWithAssertion(
this.spSiteUrl.ToString(),
logonToken,
msoStsUrl));
}
}
if (logonToken == null && this.adfsAuthUrl == null && !string.IsNullOrEmpty(password)) // login with O365 credentials. Not a federated login.
{
// generate the WS-Trust security token request SOAP message passing in the user's credentials and the site we want access to
saml11RTBytes = Encoding.UTF8.GetBytes(ParameterizeSoapRequestTokenMsgWithUsernamePassword(
this.spSiteUrl.ToString(),
this.username,
this.password,
msoStsUrl));
}
if (saml11RTBytes != null)
{
Uri MsoSTSUri = new Uri(msoStsUrl);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(MsoSTSUri);
byte[] responseData = HttpHelper.SendHttpRequest(
MsoSTSUri,
"POST",
saml11RTBytes,
"application/soap+xml; charset=utf-8",
request,
null).Response;
StreamReader sr = new StreamReader(new MemoryStream(responseData), Encoding.GetEncoding("utf-8"));
XPathNavigator nav = new XPathDocument(sr).CreateNavigator();
XmlNamespaceManager nsMgr = new XmlNamespaceManager(nav.NameTable);
nsMgr.AddNamespace("wsse", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
XPathNavigator binarySecurityToken = nav.SelectSingleNode("//wsse:BinarySecurityToken", nsMgr);
if (binarySecurityToken != null)
{
string binaryST = binarySecurityToken.InnerXml;
nsMgr.AddNamespace("wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
XPathNavigator expires = nav.SelectSingleNode("//wsu:Expires", nsMgr);
if (!String.IsNullOrEmpty(binarySecurityToken.InnerXml) && !String.IsNullOrEmpty(expires.InnerXml))
{
samlST.Token = Encoding.UTF8.GetBytes(binarySecurityToken.InnerXml);
samlST.Expires = DateTime.Parse(expires.InnerXml);
}
}
else
{
// We didn't get security token
}
}
return(samlST);
}
