public string makeSignature(GetPostType calltype, string action, ref string stringtimestamp, string accessKey, string secureKey /*, string apiKey*/)
{
if (string.IsNullOrEmpty(action))
{
return("parameter error");
}
long timestamp = (long)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalMilliseconds;
string space = " ";
string newLine = "\n";
string method = calltype == GetPostType.POST ? "POST" : "GET";
stringtimestamp = timestamp.ToString();
string message = new StringBuilder()
.Append(method)
.Append(space)
.Append(action)
.Append(newLine)
.Append(stringtimestamp)
.Append(newLine)
//.Append(apiKey)
//.Append(newLine)
.Append(accessKey)
.ToString();
byte[] secretKey = Encoding.UTF8.GetBytes(secureKey);
HMACSHA256 hmac = new HMACSHA256(secretKey);
hmac.Initialize();
byte[] bytes = Encoding.UTF8.GetBytes(message);
byte[] rawHmac = hmac.ComputeHash(bytes);
return(Convert.ToBase64String(rawHmac));
}
public async Task <string> WebApiCall(string Url, GetPostType calltype, string action, List <KeyValuePair <string, string> > parameters)
{
Config config = Config.Instance;
string accessKey = config.GetEnumValue(Category.Config, Key.ApiGatewayAccessKey);
string secureKey = config.GetEnumValue(Category.Config, Key.ApiGatewaySecretKey);
//string apiKey = config.GetEnumValue(Category.Config, Key.ApiGatewayKey);
string responseString = string.Empty;
try
{
foreach (var a in parameters)
{
nlog.Warn(string.Format("key : {0}, value :{1}", a.Key, a.Value));
}
using (HttpClient client = new HttpClient())
{
client.Timeout = TimeSpan.FromMilliseconds(30000);
string timestamp = string.Empty;
string sig = Auth.Instance.makeSignature(calltype, action, ref timestamp, accessKey, secureKey /*, apiKey*/);
string url = Url + action;
client.DefaultRequestHeaders.Add("x-ncp-apigw-timestamp", timestamp);
//client.DefaultRequestHeaders.Add("x-ncp-apigw-api-key", apiKey);
client.DefaultRequestHeaders.Add("x-ncp-iam-access-key", accessKey);
client.DefaultRequestHeaders.Add("x-ncp-apigw-signature-v1", sig);
if (calltype == GetPostType.POST)
{
var content = new FormUrlEncodedContent(parameters);
var response = await client.PostAsync(url, content);
responseString = await response.Content.ReadAsStringAsync();
}
else
{
var response = await client.GetAsync(url);
responseString = await response.Content.ReadAsStringAsync();
}
}
}
catch (Exception ex)
{
responseString = ex.Message;
nlog.Error(string.Format("{0}, {1}", ex.Message, ex.StackTrace));
}
return(responseString);
}
public async Task <string> WebApiCall(string url, GetPostType calltype, string action)
{
return(await WebApiCall(url, calltype, action, ""));
}
