private SPOAuthUtility(Uri spSiteUrl, string username, string password)
{
this.spSiteUrl = spSiteUrl;
this.username = username;
this.password = password;
stsAuthToken = new SamlSecurityToken();
}
private async Task<SPOAuthCookies> GetSPOAuthCookies(SamlSecurityToken stsToken)
{
Uri siteUri = this.spSiteUrl;
Uri wsSigninUrl = new Uri(String.Format("{0}://{1}/{2}", siteUri.Scheme, siteUri.Authority, spowssigninUri));
var clientHandler = new HttpClientHandler();
await HttpUtility.SendHttpRequest(
wsSigninUrl,
HttpMethod.Post,
new MemoryStream(stsToken.BinarySecurityToken),
"application/x-www-form-urlencoded",
clientHandler);
SPOAuthCookies spoAuthCookies = new SPOAuthCookies();
spoAuthCookies.FedAuth = clientHandler.CookieContainer.GetCookies(wsSigninUrl)["FedAuth"].Value;
spoAuthCookies.RtFA = clientHandler.CookieContainer.GetCookies(wsSigninUrl)["rtFA"].Value;
spoAuthCookies.Expires = stsToken.Expires;
spoAuthCookies.Host = wsSigninUrl;
return spoAuthCookies;
}
private async Task<SamlSecurityToken> GetMsoStsSAMLToken()
{
// Makes a request that conforms with the WS-Trust standard to
// Microsoft Online Services Security Token Service to get a SAML
// generate the WS-Trust security token request SOAP message passing
//in the user's credentials and the site we want access to
byte[] saml11RTBytes = Encoding.UTF8.GetBytes(ParameterizeamlRTString(
this.spSiteUrl.ToString(),
this.username,
this.password));
byte[] response = await HttpUtility.SendHttpRequest(
new Uri(msoStsUrl),
HttpMethod.Post,
new MemoryStream(saml11RTBytes),
"application/soap+xml; charset=utf-8",
null);
StreamReader sr = new StreamReader(new MemoryStream(response));
XDocument xDoc = XDocument.Parse(sr.ReadToEnd());
var binaryST = from e in xDoc.Descendants()
where e.Name == XName.Get("BinarySecurityToken", wsse)
select e;
var expires = from e in xDoc.Descendants()
where e.Name == XName.Get("Expires", wsu)
select e;
SamlSecurityToken samlST = new SamlSecurityToken();
samlST.BinarySecurityToken = Encoding.UTF8.GetBytes(binaryST.FirstOrDefault().Value);
samlST.Expires = DateTime.Parse(expires.FirstOrDefault().Value);
return samlST;
}
public async Task<CookieContainer> GetCookieContainer()
{
if (stsAuthToken != null)
{
if (DateTime.Now > stsAuthToken.Expires)
{
this.stsAuthToken = await GetMsoStsSAMLToken();
SPOAuthCookies cookies = await GetSPOAuthCookies(this.stsAuthToken);
CookieContainer cc = new CookieContainer();
Cookie samlAuthCookie = new Cookie("FedAuth", cookies.FedAuth)
{
Path = "/",
Expires = this.stsAuthToken.Expires,
Secure = cookies.Host.Scheme.Equals("https"),
HttpOnly = true,
Domain = cookies.Host.Host
};
cc.Add(this.spSiteUrl, samlAuthCookie);
Cookie rtFACookie = new Cookie("rtFA", cookies.RtFA)
{
Path = "/",
Expires = this.stsAuthToken.Expires,
Secure = cookies.Host.Scheme.Equals("https"),
HttpOnly = true,
Domain = cookies.Host.Host
};
cc.Add(this.spSiteUrl, rtFACookie);
this.cookieContainer = cc;
}
}
return this.cookieContainer;
}
