private async void AddServerButton_Click(object sender, RoutedEventArgs e)
{
var serverurl = NewServerTextBox.Text.ToLower().Trim();
if (string.IsNullOrEmpty(serverurl))
{
return;
}
if (!serverurl.StartsWith("https://"))
{
var nd = new NoticeDialog("Server Address Error",
"Error: Server must start with \"https://\".\r\nPlease correct the address and try again.");
nd.ShowDialog();
;
return;
}
var pingtime = AppHelpers.GetServerResponseTime(serverurl);
if (pingtime <= 0 || pingtime > 120)
{
var nd = new NoticeDialog("Server Connection Error",
"Error: Server connection failed or did not respond fast enough (" + pingtime +
" ms).\r\nPlease try a different server.");
nd.ShowDialog();
return;
}
try
{
var api = new LiskAPI(serverurl);
var ss = await api.Loader_Status();
if (!ss.loaded)
{
var nd = new NoticeDialog("Server Sync Error",
"Error: Server failed sync status test.\r\nPlease try a different server.");
nd.ShowDialog();
return;
}
}
catch
{
var nd = new NoticeDialog("Server API Error",
"Error: Server failed api test.\r\nPlease try a different server.");
nd.ShowDialog();
return;
}
Properties.Settings.Default.Servers.Add(serverurl);
Properties.Settings.Default.Save();
NewServerTextBox.Text = "";
UpdateServersListView();
}
internal static async Task SetupAPI()
{
WriteLine("Setting up API system");
if (Settings.Default.Testnet)
{
Console.WriteLine("USING TESTNET");
}
// find the fastest server
var fastserver = "";
var fastservertime = 0L;
if (Settings.Default.AutoFindServer)
{
WriteLine("Finding best node");
var servers = Settings.Default.Testnet ? Settings.Default.TestnetServers : Settings.Default.Servers;
foreach (var s in servers)
{
var rt = AppHelpers.GetServerResponseTime(s);
Console.WriteLine("tested server " + s + " response time " + rt + " ms");
if (rt < fastservertime || fastservertime <= 0)
{
try
{
Console.WriteLine("checking server " + s + " status");
// check that the server is synced
var _api = new LiskAPI(s);
var ls = await _api.Loader_Status();
if (ls == null || !ls.success || !ls.loaded)
{
Console.WriteLine("server " + s + " is not synced, skipping");
continue;
}
var ss = await _api.Loader_SyncStatus();
if (ss == null || !ss.success || ss.syncing || ss.blocks != 0)
{
Console.WriteLine("server " + s + " is not synced, skipping");
continue;
}
fastservertime = rt;
fastserver = s;
}
catch
{
Console.WriteLine("server " + s + " failed status query request, skipping");
}
}
}
if (fastservertime > 0 && !string.IsNullOrEmpty(fastserver))
{
Console.WriteLine("Selected server " + fastserver + " response time " + fastservertime + " ms");
Globals.API = new LiskAPI(fastserver);
Globals.CurrentBlockHeight = (await Globals.API.Blocks_GetHeight()).height;
Console.WriteLine("API Server block height " + Globals.CurrentBlockHeight);
WriteLine("API system setup complete");
}
else
{
WriteLine("API system setup failed, could not find a valid server.");
var mbr = MessageBox.Show("Error: Could not find a valid server node.\r\nWould you like retry?",
"Server Error", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (mbr == MessageBoxResult.Yes)
{
await SetupAPI();
}
else
{
ForceExit();
}
}
}
else
{
fastservertime = AppHelpers.GetServerResponseTime(Settings.Default.Servers[0]);
WriteLine("Selected first server " + Settings.Default.Servers[0] + " response time " +
fastservertime + " ms");
if (fastservertime <= 0)
{
WriteLine("API server did not respond to ping request, status unknown, attempting test call");
}
Globals.API = new LiskAPI(Settings.Default.Servers[0]);
try
{
var res = await Globals.API.Loader_Status();
if (res == null || !res.loaded)
{
WriteLine("API server failed to respond, fatal exiting");
Console.WriteLine("Press any key to quit");
Console.ReadLine();
ForceExit();
}
}
catch (Exception crap)
{
WriteLine("Error: " + crap.Message);
Console.WriteLine("Press any key to quit");
Console.ReadLine();
ForceExit();
}
Globals.CurrentBlockHeight = (await Globals.API.Blocks_GetHeight()).height;
Console.WriteLine("API Server block height " + Globals.CurrentBlockHeight);
WriteLine("API system setup complete");
}
}