/// <summary>
/// Verifies the authorization results for the specified request identifier and the code of the authorization, and removes the request from memory.
/// </summary>
/// <param name="requestId">Request identifier.</param>
/// <param name="code">The authorization code received from the provider server.</param>
/// <returns>
/// <para>Returns the verification results.</para>
/// </returns>
/// <remarks>
/// <para>This method is intended for internal use. It is recommended to use the overload <see cref="VerifyAuthorization()"/> or <see cref="VerifyAuthorization(string)"/>.</para>
/// </remarks>
public static AuthorizationResult VerifyAuthorizationAndRemoveRequest(string requestId, string code)
{
var result = OAuthWeb.VerifyAuthorization(requestId, code);
OAuthManager.RemoveRequest(requestId);
return(result);
}
/// <summary>
/// Verifies the authorization results for the current URL.
/// </summary>
/// <remarks>
/// <para>The method will not work in desktop applications. For desktop applications you can use the overloads <see cref="VerifyAuthorization(string)"/> or <see cref="VerifyAuthorization(string, string)"/>.</para>
/// </remarks>
/// <returns>
/// <para>Returns the verification results.</para>
/// </returns>
public static AuthorizationResult VerifyAuthorization()
{
if (HttpContext.Current == null)
{
return(new AuthorizationResult {
ErrorInfo = new NullHttpContextException()
});
}
return(OAuthWeb.VerifyAuthorization(HttpContext.Current.Request.Url.ToString()));
}
/// <summary>
/// Verifies the authorization results for the specified URL.
/// </summary>
/// <param name="url">Address at which to perform the verification.</param>
/// <returns>
/// <para>Returns the verification results.</para>
/// </returns>
public static AuthorizationResult VerifyAuthorization(string url)
{
var result = new AuthorizationResult();
try
{
// HtmlDecode - small fix for wrong data from provider.
// Thanks to @Nacer ( https://github.com/Nacer- ) // v1.8
UriBuilder u = new UriBuilder(HttpUtility.HtmlDecode(url));
NameValueCollection qs = null;
if (!String.IsNullOrEmpty(u.Query))
{
qs = HttpUtility.ParseQueryString(u.Query);
}
else if (String.IsNullOrEmpty(u.Query) && !String.IsNullOrEmpty(u.Fragment))
{
qs = HttpUtility.ParseQueryString(u.Fragment.Substring(1));
}
if (qs == null)
{
throw new AuthorizationException("Invalid URL. Verification code is not found.");
}
if (!String.IsNullOrEmpty(qs["denied"]))
{
throw new AccessDeniedException(qs["error_description"]);
}
if (!String.IsNullOrEmpty(qs["error"]))
{
switch (qs["error"].ToLower())
{
case "access_denied":
throw new AccessDeniedException(qs["error_description"]);
default:
throw new AuthorizationException(qs["error_description"] ?? qs["error"]);
}
}
result = OAuthWeb.VerifyAuthorization(qs["state"], qs["oauth_verifier"] ?? qs["code"]);
}
catch (Exception ex)
{
result.ErrorInfo = ex;
}
return(result);
}
/// <summary>
/// Verifies the authorization results for the specified URL.
/// </summary>
/// <param name="url">Address at which to perform the verification.</param>
/// <returns>
/// <para>Returns the verification results.</para>
/// </returns>
public static AuthorizationResult VerifyAuthorization(string url)
{
AuthorizationResult result = new AuthorizationResult();
try
{
UriBuilder u = new UriBuilder(url);
NameValueCollection qs = null;
if (!String.IsNullOrEmpty(u.Query))
{
qs = HttpUtility.ParseQueryString(u.Query);
}
else if (String.IsNullOrEmpty(u.Query) && !String.IsNullOrEmpty(u.Fragment))
{
qs = HttpUtility.ParseQueryString(u.Fragment.Substring(1));
}
if (qs == null)
{
throw new AuthorizationException("Invalid URL. Verification code is not found.");
}
if (!String.IsNullOrEmpty(qs["denied"]))
{
throw new AccessDeniedException(qs["error_description"]);
}
if (!String.IsNullOrEmpty(qs["error"]))
{
switch (qs["error"].ToLower())
{
case "access_denied":
throw new AccessDeniedException(qs["error_description"]);
default:
throw new AuthorizationException(qs["error_description"] ?? qs["error"]);
}
}
result = OAuthWeb.VerifyAuthorization(qs["state"], qs["oauth_verifier"] ?? qs["code"]);
}
catch (Exception ex)
{
result.ErrorInfo = ex;
}
return(result);
}
