public static WebParameterCollection SortParametersExcludingSignature(WebParameterCollection parameters)
{
var copy = new WebParameterCollection(parameters);
var exclusions = copy.Where(n => EqualsIgnoreCase(n.Name, "oauth_signature"));
copy.RemoveAll(exclusions);
foreach (var parameter in copy)
{
parameter.Value = Uri.EscapeUriString(parameter.Value);
}
copy.Sort((x, y) => x.Name.Equals(y.Name) ? x.Value.CompareTo(y.Value) : x.Name.CompareTo(y.Name));
return(copy);
}
static private string ExecuteRequest(string url, WebParameterCollection param = null)
{
string req = url;
if (param != null)
{
req += '?' + OAuthHelpers.Concatenate(param, "=", "&");
}
Debug.WriteLine($"{req}");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(req);
request.Headers.Add("Authorization", OAuthHelpers.GetAuthorizationToken(url, param));
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
return(reader.ReadToEnd());
}
public static string GetAuthorizationToken(string url, WebParameterCollection param = null)
{
string TimeInSecondsSince1970 = ((int)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds).ToString();
string SHA1HASH = "";
string Nonce = "";
do
{
Nonce = GetNonce();
string consumer_secret = Uri.EscapeDataString(ConfigurationManager.AppSettings["consumer_secret"]);
string token_secret = Uri.EscapeDataString(ConfigurationManager.AppSettings["token_secret"]);
string signature_base_string = GetSignatureBaseString(url, TimeInSecondsSince1970, Nonce, param);
SHA1HASH = GetSha1Hash(consumer_secret + "&" + token_secret, signature_base_string);
} while (SHA1HASH.Contains("+") || SHA1HASH.Contains("/"));
string Header =
$"OAuth oauth_consumer_key=\"{ConfigurationManager.AppSettings["oauth_consumer_key"]}\",oauth_nonce=\"{Nonce}\",oauth_timestamp=\"{TimeInSecondsSince1970}\",oauth_token=\"{ConfigurationManager.AppSettings["oauth_token"]}\",oauth_signature=\"{SHA1HASH}\",oauth_signature_method=\"HMAC-SHA1\",oauth_version=\"1.0\"";
Debug.WriteLine($"{ Header}");
return(Header);
}
public static string GetSignatureBaseString(string url, string TimeStamp, string Nonce, WebParameterCollection param)
{
//1.Convert the HTTP Method to uppercase and set the output string equal to this value.
string Signature_Base_String = "GET";
Signature_Base_String = Signature_Base_String.ToUpper();
//2.Append the ‘&’ character to the output string.
Signature_Base_String = Signature_Base_String + "&";
//3.Percent encode the URL and append it to the output string.
string PercentEncodedURL = Uri.EscapeDataString(url);
Signature_Base_String = Signature_Base_String + PercentEncodedURL;
//4.Append the ‘&’ character to the output string.
Signature_Base_String = Signature_Base_String + "&";
//5.append parameter string to the output string.
// a bit crap but should work for 1 param. Let see :)
var authParameters = new WebParameterCollection
{
new WebParameter("oauth_consumer_key", ConfigurationManager.AppSettings["oauth_consumer_key"]),
new WebParameter("oauth_nonce", Nonce),
new WebParameter("oauth_signature_method", "HMAC-SHA1"),
new WebParameter("oauth_timestamp", TimeStamp),
new WebParameter("oauth_version", "1.0"),
new WebParameter("oauth_token", ConfigurationManager.AppSettings["oauth_token"])
};
if (param != null)
{
foreach (var authParameter in param)
{
authParameters.Add(authParameter);
}
}
Signature_Base_String += Uri.EscapeDataString(NormalizeRequestParameters(authParameters));
//if (param.Length > 0)
// if (string.Compare(param.Substring(0, 1), "o") < 0)
// { Signature_Base_String = Signature_Base_String + Uri.EscapeDataString(param + "&"); }
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("oauth_consumer_key=" + ConfigurationManager.AppSettings["oauth_consumer_key"]);
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&oauth_nonce=" + Nonce);
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&oauth_signature_method=" + "HMAC-SHA1");
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&oauth_timestamp=" + TimeStamp);
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&oauth_token=" + ConfigurationManager.AppSettings["oauth_token"]);
//Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&oauth_version=" + "1.0");
//if (param.Length > 0)
// if (string.Compare(param.Substring(0, 1), "o") >= 0)
// { Signature_Base_String = Signature_Base_String + Uri.EscapeDataString("&" + param); }
return(Signature_Base_String);
}
public virtual void AddRange(WebParameterCollection collection)
{
AddCollection(collection);
}
