/// <summary>
/// Generates and signs the signature base string
/// </summary>
/// <param name="httpsURL"></param>
/// <param name="requestMethod"></param>
/// <param name="oparams"></param>
/// <returns></returns>
private string generateAndSignSignature(String httpsURL, String requestMethod, OAuthParameters oparams)
{
OAuthParameters sbsParams = new OAuthParameters();
sbsParams.putAll(oparams.getBaseParameters());
string realm = null;
if (sbsParams.get(REALM) != EMPTY_STRING)
{
realm = sbsParams.get(REALM);
sbsParams.remove(REALM, null);
}
String baseString;
baseString = generateSignatureBaseString(httpsURL, requestMethod, sbsParams);
_signatureBaseString = baseString;
String signature;
signature = sign(baseString, privateKey);
oparams.addParameter(OAUTH_SIGNATURE, signature);
if (realm != null)
{
sbsParams.put(REALM, realm);
}
return(signature);
}
/// <summary>
/// Method to build a comma delimited list of key/value string for the signature base string and authorization header
/// </summary>
/// <param name="buffer"></param>
/// <param name="oparams"></param>
/// <returns></returns>
private StringBuilder parseParameters(StringBuilder buffer, OAuthParameters oparams)
{
foreach (KeyValuePair <string, SortedSet <string> > key in oparams.getBaseParameters())
{
SortedSet <string> value = key.Value;
parseSortedSetValues(buffer, key.Key, value);
buffer.Append(COMMA);
}
buffer.Remove(buffer.Length - 1, 1);
return(buffer);
}
/// <summary>
/// Normalize the OAuth parameters as they are added to the signature base string
/// </summary>
/// <param name="httpUrl"></param>
/// <param name="requestParameters"></param>
/// <returns></returns>
private static String normalizeParameters(String httpUrl, OAuthParameters requestParameters)
{
// add the querystring to the base string (if one exists)
if (httpUrl.IndexOf(QUESTION_MARK) > 0)
{
NameValueCollection queryParameters = HttpUtility.ParseQueryString(httpUrl.Substring(httpUrl.IndexOf(QUESTION_MARK) + 1));
foreach (string key in queryParameters)
{
requestParameters.put(key, UrlEncodeRfc3986(queryParameters[key]));
}
}
// piece together the base string, encoding each key and value
StringBuilder paramString = new StringBuilder();
foreach (KeyValuePair <string, SortedSet <string> > kvp in requestParameters.getBaseParameters())
{
if (kvp.Value.Count == 0)
{
continue; // Skip if key doesn't have any values
}
if (paramString.Length > 0)
{
paramString.Append(AMP);
}
int tempCounter = 0;
foreach (string value in kvp.Value.Keys)
{
paramString.Append(UrlEncodeRfc3986(kvp.Key)).Append(EQUALS).Append((value));
if (tempCounter != kvp.Value.Count - 1)
{
paramString.Append(AMP);
}
tempCounter++;
}
}
return(paramString.ToString());
}
/// <summary>
/// Method to build a comma delimited list of key/value string for the signature base string and authorization header
/// </summary>
/// <param name="buffer"></param>
/// <param name="oparams"></param>
/// <returns></returns>
private StringBuilder parseParameters(StringBuilder buffer, OAuthParameters oparams)
{
foreach (KeyValuePair<string, SortedSet<string>> key in oparams.getBaseParameters())
{
SortedSet<string> value = key.Value;
parseSortedSetValues(buffer, key.Key, value);
buffer.Append(COMMA);
}
buffer.Remove(buffer.Length - 1, 1);
return buffer;
}
/// <summary>
/// Generates and signs the signature base string
/// </summary>
/// <param name="httpsURL"></param>
/// <param name="requestMethod"></param>
/// <param name="oparams"></param>
/// <returns></returns>
private string generateAndSignSignature(String httpsURL, String requestMethod, OAuthParameters oparams)
{
OAuthParameters sbsParams = new OAuthParameters();
sbsParams.putAll(oparams.getBaseParameters());
string realm = null;
if (sbsParams.get(REALM) != EMPTY_STRING)
{
realm = sbsParams.get(REALM);
sbsParams.remove(REALM, null);
}
String baseString;
baseString = generateSignatureBaseString(httpsURL, requestMethod, sbsParams);
_signatureBaseString = baseString;
String signature;
signature = sign(baseString, privateKey);
oparams.addParameter(OAUTH_SIGNATURE, signature);
if (realm != null)
{
sbsParams.put(REALM, realm);
}
return signature;
}
/// <summary>
/// Normalize the OAuth parameters as they are added to the signature base string
/// </summary>
/// <param name="httpUrl"></param>
/// <param name="requestParameters"></param>
/// <returns></returns>
private static String normalizeParameters(String httpUrl, OAuthParameters requestParameters)
{
// add the querystring to the base string (if one exists)
if (httpUrl.IndexOf(QUESTION_MARK) > 0)
{
NameValueCollection queryParameters = HttpUtility.ParseQueryString(httpUrl.Substring(httpUrl.IndexOf(QUESTION_MARK) + 1));
foreach (string key in queryParameters)
{
requestParameters.put(key, UrlEncodeRfc3986(queryParameters[key]));
}
}
// piece together the base string, encoding each key and value
StringBuilder paramString = new StringBuilder();
foreach (KeyValuePair<string, SortedSet<string>> kvp in requestParameters.getBaseParameters())
{
if (kvp.Value.Count == 0)
{
continue; // Skip if key doesn't have any values
}
if (paramString.Length > 0)
{
paramString.Append(AMP);
}
int tempCounter = 0;
foreach (string value in kvp.Value.Keys)
{
paramString.Append(UrlEncodeRfc3986(kvp.Key)).Append(EQUALS).Append((value));
if (tempCounter != kvp.Value.Count - 1)
{
paramString.Append(AMP);
}
tempCounter++;
}
}
return paramString.ToString();
}
