/// <summary>
/// Generates the login URL.
/// </summary>
/// <param name="pCSRFstate">The CSRF web session state. <seealso cref="https://developers.facebook.com/docs/authentication/server-side/" /><seealso cref="http://en.wikipedia.org/wiki/Cross-site_request_forgery" /></param>
/// <param name="pPermissions">comma separated list of permission names.<example>email,user_about_me</example></param>
/// <param name="pRedirectUrl">The redirect URL.</param>
/// <returns></returns>
/// <exception cref="System.ApplicationException">pCSRFstate or pRedirectUrl cannot be null</exception>
public Uri GenerateLoginUrl(string pCSRFstate, string pPermissions, string pRedirectUrl, OpenStyle pOpenStyle)
{
if (string.IsNullOrEmpty(pCSRFstate)) throw new ApplicationException("pCSRFstate cannot be null");
if (string.IsNullOrEmpty(pRedirectUrl)) throw new ApplicationException("pRedirectUrl cannot be null");
// for .net 3.5
// var parameters = new Dictionary<string,object>
// parameters["client_id"] = appId;
dynamic parameters = new ExpandoObject();
parameters.client_id = this._facebookAppId;
parameters.redirect_uri = pRedirectUrl;
// The requested response: an access token (token), an authorization code (code), or both (code token).
parameters.response_type = "code";
// list of additional display modes can be found at http://developers.facebook.com/docs/reference/dialogs/#display
switch (pOpenStyle)
{
case OpenStyle.Popup:
parameters.display = "popup";
break;
case OpenStyle.Page:
parameters.display = "page";
break;
default:
break;
}
parameters.state = pCSRFstate;
// add the 'scope' parameter only if we have extendedPermissions.
if (!string.IsNullOrWhiteSpace(pPermissions))
parameters.scope = pPermissions;
// generate the login url
var fb = new FacebookClient();
return fb.GetLoginUrl(parameters);
}
/// <summary>
/// Generates the login URL.
/// </summary>
/// <param name="pCSRFstate">The CSRF web session state. <seealso cref="https://developers.facebook.com/docs/authentication/server-side/" /><seealso cref="http://en.wikipedia.org/wiki/Cross-site_request_forgery" /></param>
/// <param name="pPermissions">comma separated list of permission names.<example>email,user_about_me</example></param>
/// <param name="pRedirectUrl">The redirect URL.</param>
/// <returns></returns>
/// <exception cref="System.ApplicationException">pCSRFstate or pRedirectUrl cannot be null</exception>
public Uri GenerateLoginUrl(string pCSRFstate, string pPermissions, string pRedirectUrl, OpenStyle pOpenStyle)
{
if (string.IsNullOrEmpty(pCSRFstate))
{
throw new ApplicationException("pCSRFstate cannot be null");
}
if (string.IsNullOrEmpty(pRedirectUrl))
{
throw new ApplicationException("pRedirectUrl cannot be null");
}
// for .net 3.5
// var parameters = new Dictionary<string,object>
// parameters["client_id"] = appId;
dynamic parameters = new ExpandoObject();
parameters.client_id = this._facebookAppId;
parameters.redirect_uri = pRedirectUrl;
// The requested response: an access token (token), an authorization code (code), or both (code token).
parameters.response_type = "code";
// list of additional display modes can be found at http://developers.facebook.com/docs/reference/dialogs/#display
switch (pOpenStyle)
{
case OpenStyle.Popup:
parameters.display = "popup";
break;
case OpenStyle.Page:
parameters.display = "page";
break;
default:
break;
}
parameters.state = pCSRFstate;
// add the 'scope' parameter only if we have extendedPermissions.
if (!string.IsNullOrWhiteSpace(pPermissions))
{
parameters.scope = pPermissions;
}
// generate the login url
var fb = new FacebookClient();
return(fb.GetLoginUrl(parameters));
}
