public IEnumerable <Tuple <string, string> > CreateAuthenticatedTokens(Uri fullUrl, string httpMethod)
{
long adjustedTimestampSeconds = GetAdjustedTimestampInSeconds();
string signature = FormatSignature(fullUrl.AbsolutePath, httpMethod, adjustedTimestampSeconds);
Func <string, string, Tuple <string, string> > createTuple =
(s0, s1) => new Tuple <string, string>(s0, s1);
var tokens = new List <Tuple <string, string> > {
createTuple(APP_ID_PARAMETER, m_appId)
};
if (m_userId != null)
{
tokens.Add(createTuple(USER_ID_PARAMETER, m_userId));
tokens.Add(
createTuple(
SIGNATURE_BY_USER_KEY_PARAMETER,
D2LSigner.GetBase64HashString(m_userKey, signature)
)
);
}
tokens.Add(createTuple(SIGNATURE_BY_APP_KEY_PARAMETER, D2LSigner.GetBase64HashString(m_appKey, signature)));
tokens.Add(createTuple(TIMESTAMP_PARAMETER, adjustedTimestampSeconds.ToString(CultureInfo.InvariantCulture)));
return(tokens);
}
/// <summary>
/// Constructs a URI to call for authentication given the target URI provided
/// </summary>
/// <param name="callbackUri">The target which the D2L server should return to after authenticating</param>
/// <returns>The URI for the user to authenticate against</returns>
private string BuildAuthenticationUriQueryString(Uri callbackUri)
{
string callbackUriString = callbackUri.AbsoluteUri;
string uriHash = D2LSigner.GetBase64HashString(m_appKey, callbackUriString);
string result = APP_ID_PARAMETER + "=" + m_appId;
result += "&" + APP_KEY_PARAMETER + "=" + uriHash;
result += "&" + CALLBACK_URL_PARAMETER + "=" + HttpUtility.UrlEncode(callbackUriString);
return(result);
}