Android的代理服务器-处理HTTPS

Question

I've build proxy server for Android that captures all HTTP request. I also receive HTTPS in which I'm not interested but I just want to pass them through.

According to http://muffin.doit.org/docs/rfc/tunneling_ssl.html when SSL connection is coming through proxy the HTTP method is CONNECT. For this I send response to client:

            if (request.startsWith("CONNECT")) {
            proxyOutputStream.write(("HTTP/1.1 200 Connection established" + CRLF + CRLF).getBytes());
            proxyOutputStream.flush();

and then I enable bidirectional connection:

                DirectionalConnectionHandler client = new DirectionalConnectionHandler(mProxySocket, mOutsideSocket);
            client.start();
            DirectionalConnectionHandler server = new DirectionalConnectionHandler(mOutsideSocket, mProxySocket);
            server.start();

However "Connection established" causes "ERR_SSL_PROTOCOL_ERROR" error in browser. If I don't send "Connection established" response the error is ERR_TUNNEL_CONNECTION_FAILED

What should be done to enable normal HTTPS connection and don't break browser ?

Answer 1

You do not need response HTTP/1.1 200 Connection established in proxy mode.

Remove the following code,

proxyOutputStream.write(("HTTP/1.1 200 Connection established" + CRLF + CRLF).getBytes());
proxyOutputStream.flush();