Android HTTP request with specific port

Question

I am trying to get the song title from a Shoutcast server. So, my idea was to do a little regexp on 7.html page of Shoutcast server, BUT I can't get simple HttpGet request to receive 7.html page. What am I doing wrong?

If I remove port number from link, HttpGet will run without any problems, but I won't get my results.

private class GetTrackInfo extends AsyncTask<String, Void, String> {

    @Override
    protected String doInBackground(String... Urls) {

        String url = urls[0];
        if(!url.contains("http://")) url = "http://" + url;
        url = url + "/7.html";
        HttpParams params = new BasicHttpParams();
        HttpClient httpclient = new DefaultHttpClient(params);
        HttpGet http = new HttpGet(url);
        HttpResponse response = null;
        try {
            response = httpclient.execute(http);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        try {
            response.getEntity().writeTo(out);
        } catch (IOException e) {
            e.printStackTrace();
        }        
        String res = out.toString();
        return res;
    }

    @Override
    protected void onPostExecute(String result) {
        Log.i("GetTrack", "Track result: " + result);
        String[] results = result.split(",");
        String track = results[results.length-1];
        fplayer.setStreamInfoTxt(track);
    }

}

As an error, I get:

01-29 23:28:10.461: W/System.err(962): org.Apache.http.client.ClientProtocolException 01-29 23:28:10.471: W/System.err(962): at org.Apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.Java:557) 01-29 23:28:10.471: W/System.err(962): at org.Apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.Java:487) 01-29 23:28:10.471: W/System.err(962): at org.Apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.Java:465) 01-29 23:28:10.471: W/System.err(962): at com.imsgroups.exyuradio.services.PlayerService$GetTrackInfo.doInBackground(PlayerService.Java:257) 01-29 23:28:10.471: W/System.err(962): at com.imsgroups.exyuradio.services.PlayerService$GetTrackInfo.doInBackground(PlayerService.Java:1) 01-29 23:28:10.481: W/System.err(962): at Android.os.AsyncTask$2.call(AsyncTask.Java:185) 01-29 23:28:10.481: W/System.err(962): at Java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.Java:305) 01-29 23:28:10.491: W/System.err(962): at Java.util.concurrent.FutureTask.run(FutureTask.Java:137) 01-29 23:28:10.491: W/System.err(962): at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1068) 01-29 23:28:10.491: W/System.err(962): at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:561) 01-29 23:28:10.491: W/System.err(962): at Java.lang.Thread.run(Thread.Java:1096) 01-29 23:28:10.491: W/System.err(962): Caused by: org.Apache.http.ProtocolException: The server failed to respond with a valid HTTP response 01-29 23:28:10.511: W/System.err(962): at org.Apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.Java:93) 01-29 23:28:10.511: W/System.err(962): at org.Apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.Java:174) 01-29 23:28:10.511: W/System.err(962): at org.Apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.Java:179) 01-29 23:28:10.511: W/System.err(962): at org.Apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.Java:235) 01-29 23:28:10.522: W/System.err(962): at org.Apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.Java:259) 01-29 23:28:10.522: W/System.err(962): at org.Apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.Java:279) 01-29 23:28:10.522: W/System.err(962): at org.Apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.Java:121) 01-29 23:28:10.522: W/System.err(962): at org.Apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.Java:410) 01-29 23:28:10.541: W/System.err(962): at org.Apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.Java:555)

Answer 1

I managed to figure it out! I actually had problem with my String url variable. After encoding this String with URLEncode I saw that I have %0A%0D at the of it since I got those urls from a file. (%0A%0D are chars for escape and new line, see here more about it) Everything is working like charm now! So guys, always double check your url before you make Http request.

Answer 2

You are modifying the variable url, but then you pass the original parameter to your HttpGet

 HttpGet http = new HttpGet(urls[0]);

So, if your urls[0] does not have the http: protocol already on it, it won't get added. I think you want the following -

HttpGet http = new HttpGet(url);