public async Task <bool> Login(CancellationToken ct = default(CancellationToken))
{
Config.Log.LogOut("\t[Login]");
if (string.IsNullOrEmpty(Config.refresh_token))
{
Thread t = new Thread(new ThreadStart(() =>
{
Authkey = new FormLogin().Login(ct);
}));
t.SetApartmentState(System.Threading.ApartmentState.STA);
t.IsBackground = true;
t.Start();
while (t.IsAlive)
{
await Task.Delay(1000).ConfigureAwait(false);
}
if (Authkey != null && !string.IsNullOrEmpty(Authkey.access_token))
{
key_timer = DateTime.Now;
DriveData.RemoveCache();
return(true);
}
return(false);
}
else
{
return(await Refresh(ct).ConfigureAwait(false));
}
}
private async void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)
{
Text = e.Url.ToString();
var path = e.Url.AbsoluteUri;
if (path.StartsWith(ConfigAPI.App_redirect))
{
if (string.IsNullOrEmpty(ConfigAPI.client_secret))
{
return;
}
const string code_str = "?code=";
var i = path.IndexOf(code_str);
if (i < 0)
{
return;
}
string code = path.Substring(i + code_str.Length, path.IndexOf('&', i) - i - code_str.Length);
await GetAuthorizationCode(code, ct_soruce.Token);
if (key != null && key.access_token != "")
{
webBrowser1.Navigate(ConfigAPI.LoginSuccess);
timer1.Enabled = true;
}
}
if (path.StartsWith(ConfigAPI.App_GetToken))
{
try
{
var body = webBrowser1.DocumentText;
var i = body.IndexOf("<PRE>");
var j = body.IndexOf("</PRE>", i);
if (i < 0 || j < 0)
{
return;
}
key = ParseResponse(body.Substring(i + 5, j - i - 5));
// Save refresh_token
Config.refresh_token = key.refresh_token;
Config.Save();
}
catch (Exception ex)
{
error_str = ex.ToString();
System.Diagnostics.Debug.WriteLine(error_str);
}
if (key != null && key.access_token != "")
{
webBrowser1.Navigate(ConfigAPI.LoginSuccess);
timer1.Enabled = true;
}
}
}
static private AuthKeys ParseResponse(string response)
{
AuthKeys key = new AuthKeys();
var serializer = new DataContractJsonSerializer(typeof(Authentication_Info));
using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(response)))
{
var data = (Authentication_Info)serializer.ReadObject(ms);
key.access_token = data.access_token;
key.refresh_token = data.refresh_token;
}
return(key);
}
static public async Task <AuthKeys> RefreshAuthorizationCode(AuthKeys key, CancellationToken ct = default(CancellationToken))
{
string error_str;
using (var client = new HttpClient())
{
try
{
var response = await client.PostAsync(
(string.IsNullOrEmpty(ConfigAPI.client_secret))?ConfigAPI.App_RefreshToken : ConfigAPI.AmazonAPI_token,
new FormUrlEncodedContent(new Dictionary <string, string> {
{ "grant_type", "refresh_token" },
{ "refresh_token", key.refresh_token },
{ "client_id", ConfigAPI.client_id },
{ "client_secret", ConfigAPI.client_secret },
}),
ct
).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
// Above three lines can be replaced with new helper method in following line
// string body = await client.GetStringAsync(uri);
key = ParseResponse(responseBody);
// Save refresh_token
Config.refresh_token = key.refresh_token;
Config.Save();
}
catch (HttpRequestException ex)
{
error_str = ex.Message;
System.Diagnostics.Debug.WriteLine(error_str);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
error_str = ex.ToString();
System.Diagnostics.Debug.WriteLine(error_str);
}
}
return(key);
}
public async Task <bool> Refresh(CancellationToken ct = default(CancellationToken))
{
Config.Log.LogOut("\t[Refresh]");
var newkey = new AuthKeys();
newkey.refresh_token = Config.refresh_token;
newkey = await FormLogin.RefreshAuthorizationCode(newkey, ct).ConfigureAwait(false);
if (newkey != null && !string.IsNullOrEmpty(newkey.access_token))
{
Authkey = newkey;
key_timer = DateTime.Now;
return(true);
}
Config.refresh_token = "";
return(await Login(ct).ConfigureAwait(false));
}
private async Task GetAuthorizationCode(string access_code, CancellationToken ct = default(CancellationToken))
{
using (var client = new HttpClient())
{
try
{
var response = await client.PostAsync(
ConfigAPI.AmazonAPI_token,
new FormUrlEncodedContent(new Dictionary <string, string> {
{ "grant_type", "authorization_code" },
{ "code", access_code },
{ "client_id", ConfigAPI.client_id },
{ "client_secret", ConfigAPI.client_secret },
{ "redirect_uri", Uri.EscapeUriString(ConfigAPI.App_redirect) },
}),
ct
);
response.EnsureSuccessStatusCode();
string responseBody = await response.Content.ReadAsStringAsync();
// Above three lines can be replaced with new helper method in following line
// string body = await client.GetStringAsync(uri);
key = ParseResponse(responseBody);
// Save refresh_token
Config.refresh_token = key.refresh_token;
Config.Save();
}
catch (HttpRequestException ex)
{
error_str = ex.Message;
System.Diagnostics.Debug.WriteLine(error_str);
}
catch (Exception ex)
{
error_str = ex.ToString();
System.Diagnostics.Debug.WriteLine(error_str);
}
}
}
