func PrepareOAuthHeaders(reqMethod string, endUrl string, params url.Values) string {
params.Set("oauth_signature", createSignature(reqMethod, endUrl, encodedOauthParams(params)))
sortedKeys := getSortedKeys(params)
header := "OAuth "
for key := range sortedKeys {
header += sortedKeys[key] + "=\""
header += utils.Encode(params.Get(sortedKeys[key]), false) + "\", "
}
return header[:len(header)-len(", ")]
}
func postTweet(status string) {
fmt.Println("Post Added in Twitter Stream " + twitter.AccessToken)
params := twitter.GetHeadersMap()
params.Set("status", status)
method := "POST"
endUrl := "/1.1/statuses/update.json"
header := twitter.PrepareOAuthHeaders(method, endUrl, params)
response := utils.ProcessRequest(method, header, twitter.ApiUrl+endUrl+"?status="+utils.Encode(status, false), nil)
fmt.Println(string(response))
}
func encodedOauthParams(params url.Values) string {
sortedKeys := getSortedKeys(params)
encodedString := ""
for key := range sortedKeys {
encodedString += sortedKeys[key] + "="
encodedString += utils.Encode(params.Get(sortedKeys[key]), false) + "&"
}
fmt.Println(params.Encode())
fmt.Println(encodedString[:len(encodedString)-len("&")])
return encodedString[:len(encodedString)-len("&")]
}
func createSignature(reqMethod string, endUrl string, paramsEncode string) (sig string) {
sign_key := []byte(utils.Encode(client_secret, false) + "&" + utils.Encode(AccessTokenSecret, false))
h := hmac.New(sha1.New, sign_key) //TODO: Little Suspicious
h.Write([]byte(reqMethod + "&" + utils.Encode(ApiUrl+endUrl, false) + "&" + utils.Encode(paramsEncode, false)))
return base64.StdEncoding.EncodeToString(h.Sum(sign_key[:0]))
}
func SignIn(w http.ResponseWriter, req *http.Request) {
fmt.Println("Trying to Auth Twitter")
// Preparing Params
params := GetHeadersMap()
params.Set("oauth_callback", redirect_uri)
method := "POST"
endUrl := "/oauth/request_token"
header := PrepareOAuthHeaders(method, endUrl, params)
oauth_token_response := string(utils.ProcessRequest(method, header, ApiUrl+endUrl, nil))
fmt.Println(oauth_token_response)
if strings.Contains(oauth_token_response, "oauth_token") {
AccessToken = strings.Split(strings.Split(oauth_token_response, "&")[0], "=")[1]
fmt.Println(string(utils.ProcessRequest("GET", "", ApiUrl+"/oauth/authenticate?oauth_token="+utils.Encode(AccessToken, false), nil))) // TODO: Replace this with LOGIN Page
} else {
fmt.Println(oauth_token_response)
}
}