/// <summary>
/// Adds the authorization header to the given web client.
/// </summary>
/// <param name="webClient">The web client.</param>
/// <param name="accessToken">The access token.</param>
public static void AddAuthorizationHeader(this WebClient webClient, JsonWebTokenAccessToken accessToken)
{
if (webClient == null)
{
throw new ArgumentNullException("webClient");
}
if (accessToken == null)
{
throw new ArgumentNullException("accessToken");
}
webClient.Headers.Add(HttpRequestHeader.Authorization, accessToken.TokenType + " " + accessToken.AccessToken);
}
/// <summary>
/// Queries a JSON web token service with the given claim set signed with the given signer
/// returning a JSON web access token response.
/// </summary>
/// <param name="claimSet">The claim set to use.</param>
/// <param name="signer">The signer to use to sign the JSON web token before querying.</param>
/// <returns>The JSON web access token response.</returns>
/// <exception cref="System.ArgumentNullException">If claimSet or signer are null.</exception>
/// <exception cref="System.InvalidOperationException">
/// If JsonWebToken.JsonDeserialize has not been configured or claimSet.Audience does not
/// contain a valid service Uri for authorizing the claim.
/// </exception>
public static async Task <JsonWebTokenAccessToken> Authorize(JsonWebTokenClaimSet claimSet, IJsonWebTokenSigner signer)
{
if (claimSet == null)
{
throw new ArgumentNullException("claimSet");
}
if (signer == null)
{
throw new ArgumentNullException("signer");
}
if (JsonWebTokenJsonDeserialize == null)
{
throw new InvalidOperationException(
"JsonWebToken.JsonDeserialize must be set to a valid JSON deserializer before calling authorize.");
}
if (claimSet.Audience == null)
{
throw new InvalidOperationException("claimSet.Audience must contain the Uri of the service that will authorize the claim.");
}
var jsonWebToken = CreateToken(claimSet, signer);
var parameters = new NameValueCollection()
{
{ "grant_type", "urn:ietf:params:oauth:grant-type:jwt-bearer" },
{ "assertion", jsonWebToken }
};
var webClient = new WebClient();
var response = await webClient.UploadValuesTaskAsync(claimSet.Audience, "POST", parameters);
var jsonResult = Encoding.UTF8.GetString(response);
var result = JsonWebTokenJsonDeserialize(jsonResult);
var accessToken = new JsonWebTokenAccessToken(result);
return(accessToken);
}