// Send GET Request to PlurkClient API
func (plurk *PlurkClient) Get(endpoint string, params url.Values) ([]byte, error) {
requestUri := fmt.Sprintf("%s/%s", plurk.ApiBase, endpoint)
uri, err := url.Parse(requestUri)
// TODO(elct9620): Imrpove error handle
if err != nil {
return nil, err
}
params = signParams(&plurk.credential, "GET", uri, params)
requestUri = fmt.Sprint(requestUri, "?", params.Encode())
res, err := http.Get(requestUri)
logger.Info("GET %s", uri.String())
logger.Debug("Params %s", params.Encode())
if err != nil {
return nil, err
}
defer res.Body.Close()
data, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, err
}
if res.StatusCode != 200 {
var responseError Error
json.Unmarshal(data, &responseError)
logger.Error(responseError.ErrorText)
return nil, errors.New(responseError.ErrorText)
}
return data, nil
}
// Signature from params and url to generate OAuth 1.0 signature
func (c *Credential) Signature(uri *url.URL, method string, params url.Values) string {
// HMAC-SHA1
var signatureURL = fmt.Sprintf(
"%s&%s&%s", // Method&URI&Params
method,
url.QueryEscape(uri.String()),
strings.Replace(url.QueryEscape(params.Encode()), "%2B", "%2520", -1), // Resolve space " " change to "+" after encode
)
logger.Debug("Signature String %s", signatureURL)
key := []byte(fmt.Sprint(c.AppSecret, "&", c.TokenSecret))
h := hmac.New(sha1.New, key)
h.Write([]byte(signatureURL))
return base64.StdEncoding.EncodeToString(h.Sum(nil))
}