public static async Task <bool> LoginAsync(string data) { string authenticationURL = "https://ivle.nus.edu.sg/api/Lapi.svc/Login_JSON"; HttpClient client = new HttpClient(); // encode the request content in url encoding format HttpContent payload = new StringContent(data, Encoding.UTF8, "application/x-www-form-urlencoded"); HttpResponseMessage response = client.PostAsync(authenticationURL, payload).Result; // wait for the string response string responseString = await response.Content.ReadAsStringAsync(); // remove the last "}" responseString = responseString.Remove(responseString.Length - 1); // remove the first "{" and its associated header responseString = responseString.Substring(responseString.IndexOf(":") + 1); // store the newly received token _token = JsonConvert.DeserializeObject <DataStructure.Token>(responseString); payload.Dispose(); response.Dispose(); client.Dispose(); return(_token != null && _token.TokenSuccess); }
public static void RemoveToken() { _token = null; Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings; roamingSettings.Values[DataStructure.ConstName.Token] = null; }
public static void RemoveToken() { _token = null; Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings; roamingSettings.Values[DataStructure.ConstName.Token] = null; }
// to check if token has been stored in application data // if so, restore the token from stored data, else, return false public static bool IsTokenExisting() { Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings; if (roamingSettings.Values.ContainsKey(DataStructure.ConstName.Token)) { // load token from application data _token = new DataStructure.Token(roamingSettings.Values[DataStructure.ConstName.Token].ToString()); return(true); } else { return(false); } }
// to check if token has been stored in application data // if so, restore the token from stored data, else, return false public static bool IsTokenExisting() { Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings; if (roamingSettings.Values.ContainsKey(DataStructure.ConstName.Token)) { // load token from application data _token = new DataStructure.Token(roamingSettings.Values[DataStructure.ConstName.Token].ToString()); return true; } else { return false; } }
// asynchronous function to validate token, to // update token if necessary or to return false // if token is invalid public static async Task <bool> IsTokenValid() { HttpClient client = new HttpClient(); // http get request to validate token HttpResponseMessage response = await client.GetAsync(Utils.LAPI.GenerateValidateURL()); // make sure the http reponse is successful response.EnsureSuccessStatusCode(); // convert http response to string string responseString = await response.Content.ReadAsStringAsync(); _token = JsonConvert.DeserializeObject <DataStructure.Token>(responseString); response.Dispose(); client.Dispose(); return(_token != null && _token.TokenSuccess); }
// asynchronous function to validate token, to // update token if necessary or to return false // if token is invalid public static async Task<bool> IsTokenValid() { HttpClient client = new HttpClient(); // http get request to validate token HttpResponseMessage response = await client.GetAsync(Utils.LAPI.GenerateValidateURL()); // make sure the http reponse is successful response.EnsureSuccessStatusCode(); // convert http response to string string responseString = await response.Content.ReadAsStringAsync(); _token = JsonConvert.DeserializeObject<DataStructure.Token>(responseString); response.Dispose(); client.Dispose(); return (_token != null && _token.TokenSuccess); }
public static async Task<bool> LoginAsync(string data) { string authenticationURL = "https://ivle.nus.edu.sg/api/Lapi.svc/Login_JSON"; HttpClient client = new HttpClient(); // encode the request content in url encoding format HttpContent payload = new StringContent(data, Encoding.UTF8, "application/x-www-form-urlencoded"); HttpResponseMessage response = client.PostAsync(authenticationURL, payload).Result; // wait for the string response string responseString = await response.Content.ReadAsStringAsync(); // remove the last "}" responseString = responseString.Remove(responseString.Length - 1); // remove the first "{" and its associated header responseString = responseString.Substring(responseString.IndexOf(":") + 1); // store the newly received token _token = JsonConvert.DeserializeObject<DataStructure.Token>(responseString); payload.Dispose(); response.Dispose(); client.Dispose(); return (_token != null && _token.TokenSuccess); }