/// <summary>
/// Gets the facebook signed request from the http request.
/// </summary>
/// <param name="appSecret">
/// The app Secret.
/// </param>
/// <param name="httpContext">
/// The http context.
/// </param>
/// <returns>
/// Returns the signed request if found otherwise null.
/// </returns>
internal static FacebookSignedRequest GetSignedRequest(string appSecret, HttpContextBase httpContext)
{
Contract.Requires(httpContext != null);
Contract.Requires(httpContext.Request != null);
Contract.Requires(httpContext.Request.Params != null);
var items = httpContext.Items;
var httpRequest = httpContext.Request;
FacebookSignedRequest signedRequest;
if (items[HttpContextKey] == null)
{
signedRequest = (httpRequest.Params.AllKeys.Contains(SignedRequestKey) && !string.IsNullOrEmpty(httpRequest.Params[SignedRequestKey])) ? FacebookSignedRequest.Parse(appSecret, httpRequest.Params[SignedRequestKey]) : null;
items[HttpContextKey] = signedRequest;
}
else
{
signedRequest = items[HttpContextKey] as FacebookSignedRequest;
}
return(signedRequest);
}
/// <summary>
/// Gets the facebook signed request from the http request.
/// </summary>
/// <param name="appSecret">
/// The app Secret.
/// </param>
/// <param name="httpContext">
/// The http context.
/// </param>
/// <returns>
/// Returns the signed request if found otherwise null.
/// </returns>
internal static FacebookSignedRequest GetSignedRequest(string appId, string appSecret, HttpContextBase httpContext)
{
if (httpContext == null)
{
throw new ArgumentNullException("httpContext");
}
var items = httpContext.Items;
var httpRequest = httpContext.Request;
FacebookSignedRequest signedRequest;
if (items[HttpContextKey] == null)
{
signedRequest = httpRequest.Params.AllKeys.Contains(SignedRequestKey) && !string.IsNullOrEmpty(httpRequest.Params[SignedRequestKey]) ? FacebookSignedRequest.Parse(appSecret, httpRequest.Params[SignedRequestKey]) : null;
if (signedRequest == null && !string.IsNullOrEmpty(appId))
{
var signedRequestCookieValue = GetSignedRequestCookieValue(appId, httpRequest);
if (!string.IsNullOrEmpty(signedRequestCookieValue))
{
signedRequest = Parse(appSecret, signedRequestCookieValue);
}
}
items[HttpContextKey] = signedRequest;
}
else
{
signedRequest = items[HttpContextKey] as FacebookSignedRequest;
}
return(signedRequest);
}
