package com.marverenic.music.utils;

import android.os.Build;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

import okhttp3.ConnectionSpec;
import okhttp3.OkHttpClient;
import okhttp3.TlsVersion;
import timber.log.Timber;

public class OkHttpUtils {

    // See https://github.com/square/okhttp/issues/2372
    public static OkHttpClient.Builder enableTls12OnPreLollipop(OkHttpClient.Builder client) {
        if (Build.VERSION.SDK_INT >= 16 && Build.VERSION.SDK_INT < 22) {
            try {
                SSLContext sc = SSLContext.getInstance("TLSv1.2");
                sc.init(null, null, null);
                client.sslSocketFactory(new Tls12SocketFactory(sc.getSocketFactory()));

                ConnectionSpec cs = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
                        .tlsVersions(TlsVersion.TLS_1_2)
                        .build();

                List<ConnectionSpec> specs = new ArrayList<>();
                specs.add(cs);
                specs.add(ConnectionSpec.COMPATIBLE_TLS);
                specs.add(ConnectionSpec.CLEARTEXT);

                client.connectionSpecs(specs);
            } catch (Exception exc) {
                Timber.e("Error while setting TLS 1.2", exc);
            }
        }

        return client;
    }

    /**
     * Enables TLS v1.2 when creating SSLSockets.
     * <p/>
     * For some reason, android supports TLS v1.2 from API 16, but enables it by
     * default only from API 20.
     * @link https://developer.android.com/reference/javax/net/ssl/SSLSocket.html
     * @see SSLSocketFactory
     */
    private static class Tls12SocketFactory extends SSLSocketFactory {
        private static final String[] TLS_V12_ONLY = {"TLSv1.2"};

        final SSLSocketFactory delegate;

        public Tls12SocketFactory(SSLSocketFactory base) {
            this.delegate = base;
        }

        @Override
        public String[] getDefaultCipherSuites() {
            return delegate.getDefaultCipherSuites();
        }

        @Override
        public String[] getSupportedCipherSuites() {
            return delegate.getSupportedCipherSuites();
        }

        @Override
        public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
            return patch(delegate.createSocket(s, host, port, autoClose));
        }

        @Override
        public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
            return patch(delegate.createSocket(host, port));
        }

        @Override
        public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
            return patch(delegate.createSocket(host, port, localHost, localPort));
        }

        @Override
        public Socket createSocket(InetAddress host, int port) throws IOException {
            return patch(delegate.createSocket(host, port));
        }

        @Override
        public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
            return patch(delegate.createSocket(address, port, localAddress, localPort));
        }

        private Socket patch(Socket s) {
            if (s instanceof SSLSocket) {
                ((SSLSocket) s).setEnabledProtocols(TLS_V12_ONLY);
            }
            return s;
        }
    }

}

@@ -54,16 +54,56 @@
 s.Build;
+%0Aimport android.support.annotation.Keep;
 %0A%0Aimport
@@ -1987,16 +1987,30 @@
 1.2%22%7D;%0A%0A
+        @Keep%0A
         

Fix launch crash in release builds on pre-L devices