Created
February 21, 2019 16:41
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Get list of Access Point (BSSID and Signal) using C#
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using System; | |
using System.Collections.Generic; | |
using System.Diagnostics; | |
using System.IO; | |
using System.Linq; | |
using System.Reflection; | |
using System.Text; | |
using System.Text.RegularExpressions; | |
using System.Threading.Tasks; | |
namespace ConsoleApp2 | |
{ | |
class AccessPoint | |
{ | |
public string SSID { get; set; } | |
public string BSSID { get; set; } | |
public byte Signal { get; set; } | |
} | |
class Program | |
{ | |
private static async Task Main(string[] args) | |
{ | |
var apList = await GetSignalOfNetworks(); | |
foreach (var ap in apList) | |
{ | |
WriteLine($"{ap.BSSID} - {ap.Signal} - {ap.SSID}"); | |
} | |
Console.ReadKey(); | |
} | |
private static async Task<AccessPoint[]> GetSignalOfNetworks() | |
{ | |
string result = await ExecuteProcessAsync(@"C:\Windows\System32\netsh.exe", "wlan show networks mode=bssid"); | |
return Regex.Split(result, @"[^B]SSID \d+").Skip(1).SelectMany(network => GetAccessPointFromNetwork(network)).ToArray(); | |
} | |
private static AccessPoint[] GetAccessPointFromNetwork(string network) | |
{ | |
string withoutLineBreaks = Regex.Replace(network, @"[\r\n]+", " ").Trim(); | |
string ssid = Regex.Replace(withoutLineBreaks, @"^:\s+(\S+).*$", "$1").Trim(); | |
return Regex.Split(withoutLineBreaks, @"\s{4}BSSID \d+").Skip(1).Select(ap => GetAccessPoint(ssid, ap)).ToArray(); | |
} | |
private static AccessPoint GetAccessPoint(string ssid, string ap) | |
{ | |
string withoutLineBreaks = Regex.Replace(ap, @"[\r\n]+", " ").Trim(); | |
string bssid = Regex.Replace(withoutLineBreaks, @"^:\s+([a-f0-9]{2}(:[a-f0-9]{2}){5}).*$", "$1").Trim(); | |
byte signal = byte.Parse(Regex.Replace(withoutLineBreaks, @"^.*(Signal|Sinal)\s+:\s+(\d+)%.*$", "$2").Trim()); | |
return new AccessPoint | |
{ | |
SSID = ssid, | |
BSSID = bssid, | |
Signal = signal, | |
}; | |
} | |
private static async Task<string> ExecuteProcessAsync(string cmd, string args = null) | |
{ | |
var process = new Process() | |
{ | |
StartInfo = new ProcessStartInfo | |
{ | |
FileName = cmd, | |
Arguments = args, | |
RedirectStandardInput = false, | |
RedirectStandardOutput = true, | |
RedirectStandardError = true, | |
UseShellExecute = false, | |
CreateNoWindow = true, | |
StandardOutputEncoding = Encoding.UTF8, | |
} | |
}; | |
process.Start(); | |
string result = await process.StandardOutput.ReadToEndAsync(); | |
process.WaitForExit(); | |
#if DEBUG | |
if (result.Trim().Contains("The Wireless AutoConfig Service (wlansvc) is not running.")) | |
{ | |
return await GetFakeData(); | |
} | |
#endif | |
return result; | |
} | |
private static async Task<string> GetFakeData() | |
{ | |
var assembly = Assembly.GetExecutingAssembly(); | |
var resourceName = "ConsoleApp2.FakeData.txt"; | |
using (Stream stream = assembly.GetManifestResourceStream(resourceName)) | |
using (StreamReader reader = new StreamReader(stream)) | |
{ | |
return await reader.ReadToEndAsync(); | |
} | |
} | |
private static void WriteLine(string str) | |
{ | |
Console.WriteLine(str); | |
} | |
} | |
} |
I didn't even remember this code... LOL
I think it's because I was using it on the building of the company I used to work, there we had many AP with the same SSID, and I needed to identify each one individually.
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Why you have included 'mode=bssid'? I don't think it is necessary. Am I missing sth here?
BTW, Great work. Thanks.