private string CalculateClientResponse(AuthorizationHeader header, string password)
{
var a1Hash = $"{header.Username}:{header.Realm}:{password}".ToMd5Hash();
var a2Hash = $"{header.RequestMethod}:{header.Uri}".ToMd5Hash();
var response = $"{a1Hash}:{header.Nonce}:{header.NonceCounter}:{header.ClientNonce}:{header.Qop}:{a2Hash}"
.ToMd5Hash();
return(response);
}
private AuthorizationHeader GetAuthenticationHeader(HttpRequest request)
{
AuthorizationHeader authHeader = new AuthorizationHeader();
try
{
string credentials = GetCredentials(request);
if (string.IsNullOrEmpty(credentials))
{
return(authHeader);
}
authHeader.RequestMethod = request.Method;
var nameValueStrs = credentials
.Replace("\"", string.Empty)
.Split(',', StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Trim());
foreach (var nameValueStr in nameValueStrs)
{
var index = nameValueStr.IndexOf('=');
var name = nameValueStr.Substring(0, index);
var value = nameValueStr.Substring(index + 1);
switch (name)
{
case "username":
authHeader.Username = value;
break;
case "realm":
authHeader.Realm = value;
break;
case "nonce":
authHeader.Nonce = value;
break;
case "cnonce":
authHeader.ClientNonce = value;
break;
case "nc":
authHeader.NonceCounter = value;
break;
case "qop":
authHeader.Qop = value;
break;
case "response":
authHeader.Response = value;
break;
case "uri":
authHeader.Uri = value;
break;
}
}
return(authHeader);
}
catch (Exception e)
{
return(authHeader);
}
}