private static void AuthenticateUser()
{
sessionState.RemoteWebUrl = request.Url.Authority;
sessionState.HostWebUrl = request["SPHostUrl"];
sessionState.HostWebDomain = (new Uri(sessionState.HostWebUrl)).Authority;
sessionState.HostWebTitle = request.Form["SPSiteTitle"];
// get windows authenticated user name
sessionState.CurrentUserAccountName = HttpContext.Current.User.Identity.Name;
// get access token to make RESt call
var spContext = SharePointContextProvider.Current.GetSharePointContext(HttpContext.Current);
string accessToken = spContext.UserAccessTokenForSPHost;
// call SharePoint REST API to get information about current user
string restUri = sessionState.HostWebUrl + "/_api/web/currentUser/";
string jsonCurrentUser = ExecuteGetRequest(restUri, accessToken);
// convert json result to strongly-typed C# object
SharePointUserResult userResult = JsonConvert.DeserializeObject <SharePointUserResult>(jsonCurrentUser);
sessionState.CurrentUserDisplayName = userResult.d.Title;
sessionState.CurrentUserEmail = userResult.d.Email;
// write session state out to ASP.NET session object
session["SharePointSessionState"] = sessionState;
// update UserIsAuthenticated session variable
session["UserIsAuthenticated"] = "true";
}
private static void AuthenticateUser()
{
sessionState.RemoteWebUrl = request.Url.Authority;
sessionState.HostWebUrl = request["SPHostUrl"];
sessionState.HostWebDomain = (new Uri(sessionState.HostWebUrl)).Authority;
sessionState.HostWebTitle = request.Form["SPSiteTitle"];
string contextTokenString = request.Form["SPAppToken"];
// create SharePoint context token object
SharePointContextToken contextToken =
TokenHelper.ReadAndValidateContextToken(contextTokenString, sessionState.RemoteWebUrl);
// read session state from SharePoint context token object
sessionState.HostTenantId = contextToken.Realm;
sessionState.TargetResource = contextToken.Audience;
sessionState.RefreshToken = contextToken.RefreshToken;
sessionState.RefreshTokenExpires = contextToken.ValidTo;
// use refresh token to acquire access token response from Azure ACS
OAuth2AccessTokenResponse AccessTokenResponse =
TokenHelper.GetAccessToken(contextToken, sessionState.HostWebDomain);
// Read access token and ExpiresOn value from access token response
sessionState.AccessToken = AccessTokenResponse.AccessToken;
sessionState.AccessTokenExpires = AccessTokenResponse.ExpiresOn;
// call SharePoint REST API to get information about current user
string restUri = sessionState.HostWebUrl + "/_api/web/currentUser/";
string jsonCurrentUser = ExecuteGetRequest(restUri, sessionState.AccessToken);
// convert json result to strongly-typed C# object
SharePointUserResult userResult = JsonConvert.DeserializeObject <SharePointUserResult>(jsonCurrentUser);
sessionState.CurrentUserName = userResult.Title;
sessionState.CurrentUserEmail = userResult.Email;
// write session state out to ASP.NET session object
session["SharePointSessionState"] = sessionState;
// update UserIsAuthenticated session variable
session["UserIsAuthenticated"] = "true";
}
