Jooji dhammaan socodka hubinta proxy-ga WinForms

Badhanka Jooji waa inuu joojiyo socodka. Haddii hubin kasta oo proxy ah uu qabto joojinta oo si caadi ah u soo noqdo, wareegga dibadda wuxuu si fudud u gudbaa proxyga xiga. Markaas shaashaddu waxay u ekaanaysaa sidii Jooji waxba ma uusan qaban.

WinForms .NET casriga ah, hayso hal isha oo ah goob foom oo u ogolow joojinta inay gaarto maareeyaha dhacdada:

private CancellationTokenSource? activeRun;

private async void startButton_Click(object sender, EventArgs e)
{
    if (activeRun is not null) return;
    using var run = new CancellationTokenSource();
    activeRun = run;
    startButton.Enabled = false;
    try
    {
        foreach (Uri proxy in configuredProxies)
        {
            run.Token.ThrowIfCancellationRequested();
            await CheckProxyAsync(proxy, run.Token);
        }
        statusLabel.Text = "Finished";
    }
    catch (OperationCanceledException) when (run.IsCancellationRequested)
    {
        statusLabel.Text = "Stopped";
    }
    finally
    {
        activeRun = null;
        startButton.Enabled = true;
    }
}

private void cancelButton_Click(object sender, EventArgs e)
    => activeRun?.Cancel();

configuredProxies waa liiska URI proxy ee barnaamijku horay u falanqeeyay. Safafka ka socda liiska proxy-ga bilaashka ah waxay quudin karaan hubin la oggolaaday oo bartilmaameed dadweyne ah; hayso borotokoolka oo isticmaal kaliya noocyada maareeyahanu taageero. UI waxay sugtaa hawl kasta, sidaas darteed wareegga fariinta ayaa xor u ah inuu helo gujista joojinta.

U qaad tokenka shabakadda

Hubinta gaarka ah waa inay aqbalaan tokenkaas. Hubin HTTP oo la gaabiyay waxay u ekaan kartaa sidan:

private async Task CheckProxyAsync(Uri proxy, CancellationToken token)
{
    using var handler = new HttpClientHandler
    {
        Proxy = new System.Net.WebProxy(proxy),
        UseProxy = true
    };
    using var client = new HttpClient(handler);
    using var response = await client.GetAsync(
        probeUri, HttpCompletionOption.ResponseHeadersRead, token);
    response.EnsureSuccessStatusCode();
    string body = await response.Content.ReadAsStringAsync(token);
    RecordResult(proxy, body);
}

probeUri iyo RecordResult waxay ka tirsan yihiin hubiyaha jira. Hayso xad ku habboon cabbirka jawaabta iyo waqti-go'an bartaas. Hubiyaha wax-soo-saarka wuxuu dib u isticmaali karaa macaamiisha waddo kasta; qaybtu waxay muujinaysaa halka joojintu socoto, ma aha naqshad barkada xiriirka.

Haddii proxy-yada guuldarraystay la diiwaangeliyo oo la boodo, qabo cilladaha shabakadda ee la filayo agagaarka hubinta gaarka ah. U ogolow joojinta socodka inay u baxdo maareeyaha dibadda. Hubinno isku mid ah, wadaag tokenka socodka shaqaale kasta oo sug dhammaystirkooda ka hor inta aan la oggolaan socod kale.