public async void Search(int startIndex, int endIndex, int timeout = 300)
{
// 1. Convert the passed IP down to 3 places.
// 2. Create System.Net.Http.HttpClient (NOTE: Windows HttpClient doesn't seem to have
// adjustable timeout.)
// 3. Set the POST string to "name". This will be used as a handshake.
// 4. Iterate over the IP range, POSTing handshake.
// 5. If handshake successful at IP, create a peripheral and add it to list.
// 6. Update DeviceState: Searching->On
// 7. After iteration, return list, even if empty.
DiscoveredPeripherals = new Dictionary <string, WebServerPeripheral>();
DataConversion dataConverter = new DataConversion();
var fourthPartOfIp = DataConversion.SeperateStringByCharacterIndex(IP.ToString(), 3, '.');
var threePartIP = IP.ToString().Replace(fourthPartOfIp, "");
var httpClient = new System.Net.Http.HttpClient();
httpClient.Timeout = new TimeSpan(0, 0, 0, 0, timeout);
DeviceState.State = States.Searching;
OnDeviceStateChange(DeviceState);
for (int i = startIndex; i < endIndex; i++)
{
try
{
string ip = threePartIP + i.ToString() + "/";
var resourceUri = new Uri(ip + WebServerPeripheral.WebServiceGetName);
var response = await httpClient.PostAsync(resourceUri, null);
if (response.IsSuccessStatusCode == true)
{
var deviceName = await response.Content.ReadAsStringAsync();
if (deviceName != "")
{
try
{
WebServerPeripheral peripheral = new WebServerPeripheral(deviceName, new Uri(ip));
DiscoveredPeripherals.Add(deviceName, peripheral);
OnDiscoveringDevice(peripheral);
} catch (Exception ex)
{
Debug.WriteLine("Exception in WifiCentralManager.Search: " + ex.Message);
}
}
}
response.Dispose();
}
catch (Exception ex)
{
OnDiscoveringDevice(null);
Debug.WriteLine("Exception in WifiCentralManager.Search: " + ex.Message);
DeviceState.State = States.Unknown;
}
}
UpdateDeviceStateWithWifiStatus();
}
public void DataConversion_HighNonReadableSeperationChar_ReturnEmptyString()
{
var seperatedString = DataConversion.SeperateStringByCharacterIndex(".123.123.123", 2, Convert.ToChar(0xFF));
Assert.AreEqual("", seperatedString);
}
public void DataConversion_StringWithStartIndexThree_ReturnSeperatedString()
{
var seperatedString = DataConversion.SeperateStringByCharacterIndex(".123.123.123", 0, '.');
Assert.AreEqual("123.123.123", seperatedString);
}
public void DataConversion_StringWithAllSeperators_ReturnSeperatedString()
{
var seperatedString = DataConversion.SeperateStringByCharacterIndex("....", 1, '.');
Assert.AreEqual("...", seperatedString);
}
public void DataConversion_EmptyString_ReturnSeperatedString()
{
var seperatedString = DataConversion.SeperateStringByCharacterIndex("", 1, '.');
Assert.AreEqual("", seperatedString);
}
public void DataConversion_StringWithThreeSeperatorsNegativeIndex_ReturnSeperatedString()
{
var seperatedString = DataConversion.SeperateStringByCharacterIndex("123.12.3.", -1, '.');
Assert.AreEqual("12.3.", seperatedString);
}
