/// <summary>
/// get the oauth access token for the user from OauthAccessTokenStorage.xml
/// </summary>
internal static void GetOauthAccessTokenForUser(string emailID, Page page)
{
string path = page.Server.MapPath("/") + @"OauthAccessTokenStorage.xml";
string searchUserXpath = "//record[@usermailid='" + emailID + "']";
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlNode record = doc.SelectSingleNode(searchUserXpath);
if (record != null)
{
page.Session["realm"] = record.Attributes["realmid"].Value;
page.Session["dataSource"] = record.Attributes["dataSource"].Value;
string secuirtyKey = ConfigurationManager.AppSettings["securityKey"];
page.Session["accessToken"] = CryptographyHelper.DecryptData(record.Attributes["encryptedaccesskey"].Value, secuirtyKey);
page.Session["accessTokenSecret"] = CryptographyHelper.DecryptData(record.Attributes["encryptedaccesskeysecret"].Value, secuirtyKey);
// Add flag to session which tells that accessToken is in session
page.Session["Flag"] = true;
}
}
/// <summary>
/// persist the Oauth access token in OauthAccessTokenStorage.xml file
/// </summary>
internal static void StoreOauthAccessToken(Page page)
{
string path = page.Server.MapPath("/") + @"OauthAccessTokenStorage.xml";
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlNode node = doc.CreateElement("record");
XmlAttribute userMailIdAttribute = doc.CreateAttribute("usermailid");
userMailIdAttribute.Value = page.Session["FriendlyEmail"].ToString();
node.Attributes.Append(userMailIdAttribute);
XmlAttribute accessKeyAttribute = doc.CreateAttribute("encryptedaccesskey");
string secuirtyKey = ConfigurationManager.AppSettings["securityKey"];
accessKeyAttribute.Value = CryptographyHelper.EncryptData(page.Session["accessToken"].ToString(), secuirtyKey);
node.Attributes.Append(accessKeyAttribute);
XmlAttribute encryptedaccesskeysecretAttribute = doc.CreateAttribute("encryptedaccesskeysecret");
encryptedaccesskeysecretAttribute.Value = CryptographyHelper.EncryptData(page.Session["accessTokenSecret"].ToString(), secuirtyKey);
node.Attributes.Append(encryptedaccesskeysecretAttribute);
XmlAttribute realmIdAttribute = doc.CreateAttribute("realmid");
realmIdAttribute.Value = page.Session["realm"].ToString();
node.Attributes.Append(realmIdAttribute);
XmlAttribute dataSourceAttribute = doc.CreateAttribute("dataSource");
dataSourceAttribute.Value = page.Session["dataSource"].ToString();
node.Attributes.Append(dataSourceAttribute);
doc.DocumentElement.AppendChild(node);
doc.Save(path);
}