Configure a proxy for the traffic

Hello, thanks for the amazing library. I was wondering if it is possible to configure a proxy for the player.

I can easily setup a proxy for some HttpURLConnection I’m performing but now I would like to route the traffic of the player itself through the same proxy.

Any advice on the subject will be much appreciated.

[lpuglia]

@kim-vde Thank you very much for your suggestions, they put me on the right direction. I was finally able to make a MediaSource with a proxy connection. I struggled a lot with HttpURLConnection because on android it has limitations that are not present in a normal JVM. In particular the following global variables:

systemProperties.setProperty("http.proxyHost",proxy);
systemProperties.setProperty("http.proxyPort",port);

are ignored in android. I was also trying to use the Proxy class:

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxy, port));

for each single connection but I hit a hard wall when i tryed to swith to an authentication proxy:

Authenticator authenticator = new Authenticator() {

    public PasswordAuthentication getPasswordAuthentication() {
        return (new PasswordAuthentication(user,
                password.toCharArray()));
    }
};
Authenticator.setDefault(authenticator);

the Exception I was getting was:

java.net.ProtocolException: unexpected end of stream

In the end, your answer put me on the right track because while i was searching for a way to implement my own DefaultHttpDataSource I came accross OkHttpClient and its ExoPlayer extension. For me it was much easier to setup OkHttpClient with proxy, after adding my client to the mentioned extension everything started to work flawlessy. For future reference here is my code for a proxied HLS stream:

okhttp3.Authenticator proxyAuthenticator = new Authenticator() {
    @Override
    public Request authenticate(Route route, Response response) throws IOException {
        String credential = Credentials.basic(user, password);
        return response.request().newBuilder()
                .header("Proxy-Authorization", credential)
                .build();
    }
};
OkHttpClient client = new OkHttpClient.Builder()
        .proxy(new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxy, port)))
        .proxyAuthenticator(proxyAuthenticator)
        .build();

DataSource.Factory dataSourceFactory =
        new OkHttpDataSourceFactory(client);

MediaSource mediaSource =
        new HlsMediaSource.Factory(dataSourceFactory).createMediaSource(Uri.parse(uri));

I hope this will help someone else in the future. Regards

[kim-vde]

Here is some information that could help:

• ExoPlayer uses a DefaultHttpDataSource by default, which in turn uses an HttpURLConnection. If you set up the proxy for HttpURLConnection by configuring some global properties somewhere, then this approach should also work with ExoPlayer, as long as you are not using an other DataSource.
• If you need to access the HttpURLConnection instance directly, then you could try to use a custom DataSource extending the DefaultHttpDataSource.

If this doesn’t help, please provide more information, such as:

• How do you set up the proxy with HttpURLConnection?
• How do you build the player? More precisely, do you pass a DataSource such as DefaultHttpDataSource, OkHttpDataSource or CronetDataSource?