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19 changes: 1 addition & 18 deletions src/ModernHttpClient/Android/OkHttpNetworkHandler.cs
Original file line number Diff line number Diff line change
Expand Up @@ -198,7 +198,7 @@ class HostnameVerifier : Java.Lang.Object, IHostnameVerifier

public bool Verify(string hostname, ISSLSession session)
{
return verifyServerCertificate(hostname, session) & verifyClientCiphers(hostname, session);
return verifyServerCertificate(hostname, session);
}

/// <summary>
Expand Down Expand Up @@ -261,22 +261,5 @@ static bool verifyServerCertificate(string hostname, ISSLSession session)
// Call the delegate to validate
return ServicePointManager.ServerCertificateValidationCallback(hostname, root, chain, errors);
}

/// <summary>
/// Verifies client ciphers and is only available in Mono and Xamarin products.
/// </summary>
/// <returns><c>true</c>, if client ciphers was verifyed, <c>false</c> otherwise.</returns>
/// <param name="hostname"></param>
/// <param name="session"></param>
static bool verifyClientCiphers(string hostname, ISSLSession session)
{
var callback = ServicePointManager.ClientCipherSuitesCallback;
if (callback == null) return true;

var protocol = session.Protocol.StartsWith("SSL", StringComparison.InvariantCulture) ? SecurityProtocolType.Ssl3 : SecurityProtocolType.Tls;
var acceptedCiphers = callback(protocol, new[] { session.CipherSuite });

return acceptedCiphers.Contains(session.CipherSuite);
}
}
}