(Unicode C++) Require SSL Server Certificate Domain Match

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Demonstrates how to require that the SSL server certificate's domain matches the intended domain.

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#include <CkHttpW.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpW http;

    // Call SetSslCertRequirement to require that the SSL server certificate's domain
    // matches only the domain we are intending to communicate with.

    // In this example we will test with the URL https://wrong.host.badssl.com/
    // which intentionally has an SSL certificate that does not match "wrong.host.badssl.com"

    http.SetSslCertRequirement(L"SAN",L"wrong.host.badssl.com");

    // Also validate the server cert..
    http.put_RequireSslCertVerify(true);

    // Try sending the request.  It should fail within the SSL/TLS handshake
    // because the server's certificate does not match the domain "wrong.host.badssl.com"
    const wchar_t *html = http.quickGetStr(L"https://wrong.host.badssl.com/");
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
    }
    else {
        wprintf(L"Unexpected success.\n");
    }
    }