Apps How to Handle http redirect in code

[dailton]

Hi Everybody,

I'm getting the error "Too many redirects" when accessing some sites. I've been trying to handle the responde code 302 by myself but I didn't get success.

I tried to use the following code but it doesn't work. Can anybody help?

Thanks

Dailton Menezes
Brazil

​

protected boolean doDownload()
{

String varname = loterias[loto_selected].toLowerCase()+"_url";
​

HttpURLConnection conexao =​

null;
InputStream entrada=null;
OutputStream saida=null;

boolean rc=false;

try
{
Proxy proxy = use_proxy ? new Proxy( Proxy.Type.HTTP, new InetSocketAddress(proxy_addr, Integer.parseInt(proxy_port))) : null;

URL url = new URL(getString(getResources().getIdentifier(varname, "string", "dom.loteria")));

​

​

//SecurityManager sec = System.getSecurityManager();​

HttpURLConnection.setFollowRedirects(​

true);

if (use_proxy) conexao = (HttpURLConnection)url.openConnection (proxy); // (HttpURLConnection)​

​

else
{
conexao = (HttpURLConnection)url.openConnection(); ​

}

​

if (use_proxy && proxy_user.length()>=0)
conexao.setRequestProperty("Proxy-Authorization", "BASIC " + Base64.encodeBytes((proxy_user+":"+proxy_pass).getBytes()));


conexao.setReadTimeout(Integer.parseInt(proxy_timeout));

​

conexao.setInstanceFollowRedirects(true);

entrada = conexao.getInputStream();

saida = new BufferedOutputStream
(
new FileOutputStream (Environment.getExternalStorageDirectory()+"/"+getString(R.string.app_name)+"/temp.zip"));

mError = String.format(getString(R.string.done_download),copyInputStream(entrada,saida));

rc = true;
}
catch(Exception e)
{
mError = getString(R.string.error)+e.getMessage();
rc = false;
}
finally​

{
​

try { if (entrada!=null) entrada.close(); } catch(Exception ex) {};
try { if (saida!=null) saida.close(); } catch(Exception ex) {};
}


return rc;

​

}