Android Open Source - ildn-hub Authentication

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From Project

Back to project page ildn-hub.

License

The source code is released under:

GNU General Public License

Java Source Code

package net.ildn;
/*from   w  w  w  .j  ava 2  s  .  com*/
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import net.ildn.fedorait.R;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.StatusLine;
import org.apache.http.client.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.params.HttpClientParams;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;

import android.content.Context;
import android.content.SharedPreferences;
import android.util.Log;
import android.webkit.CookieSyncManager;

public class Authentication {
  
  private String portalelogin;
  private String username;
  private Context cx;
  
  public static final int ERROR = -1;
  public static final int ACCESS = 0;
  public static final int NOT_ACCESS = 1;
  
  private static final String LOG_ID = "ildn - Authentication";
  
  public Authentication(Context cx) {
    this.cx=cx;
  }

  public int login() {
    SharedPreferences settings = cx.getSharedPreferences(
        cx.getString(R.string.ildnPreference), 0);
    this.portalelogin = settings.getString("portalelogin",
        "nessuno");
    
    final UserCredential uc = new UserCredential(cx);
        String ildnuser=uc.getPrefs("ildnuser");
        String ildnpasswd=uc.getPrefs("ildnpasswd");
        
        if (ildnpasswd.equalsIgnoreCase("") || ildnuser.equalsIgnoreCase("")) return Authentication.NOT_ACCESS;
    
    HttpClient con = new DefaultHttpClient();
    HttpContext httpcontext = new BasicHttpContext();
    CookieStore cookieStore = new BasicCookieStore();
    CookieSyncManager.createInstance(cx);
    CookieSyncManager.getInstance().startSync();
    httpcontext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);
          
    try {
      String loginurl = "http://www." + portalelogin + "/user/login";
      Log.i(LOG_ID, "login url " + loginurl);
      HttpGet httpget = new HttpGet(loginurl);

      //get per ottenere form_build_id
      HttpResponse response = con.execute(httpget,httpcontext);
      StatusLine sl = response.getStatusLine();
      
      if (sl.getStatusCode() == HttpStatus.SC_OK) {
        HttpEntity entity = response.getEntity();
        InputStream is = entity.getContent();
        String result = convertToString(is);
        
        String value = (String) result.subSequence(result.indexOf("value=\"form-")+7 ,result.indexOf("value=\"form-") + 7 + 37);
        Log.i(LOG_ID, "value of form_build_id is " + value);
        
        //post per il login
        HttpPost httppost = new HttpPost(loginurl);
        HttpParams params = con.getParams(); 
        HttpClientParams.setRedirecting(params, false);

        
              
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("name", ildnuser));
            nameValuePairs.add(new BasicNameValuePair("pass", ildnpasswd));
            nameValuePairs.add(new BasicNameValuePair("form_build_id", value));
            nameValuePairs.add(new BasicNameValuePair("form_id", "user_login"));
            nameValuePairs.add(new BasicNameValuePair("op", "Accedi"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            
        
        response = con.execute(httppost,httpcontext);        
        sl = response.getStatusLine();
        entity = response.getEntity();
        is = entity.getContent();
        
        result = convertToString(is);
        
        CookieSyncManager.getInstance().sync();
        
        if (sl.getStatusCode() == HttpStatus.SC_MOVED_TEMPORARILY) {
          Header[] headers = response.getHeaders("Location");
          String location = headers[0].toString();
          this.username=location.substring(location.lastIndexOf("/")+1, location.length());
          Log.i(LOG_ID, "Username grabbed to " + this.username + "from: "+ portalelogin);
        }
        else {
          return Authentication.NOT_ACCESS;
        }
          
      }
      else 
        return Authentication.NOT_ACCESS;      
    }
    catch (Exception e) {
      Log.i(LOG_ID, "Errore in Authentication" + e.getMessage());
      return Authentication.ERROR;
    }
    return Authentication.ACCESS;
  }
  
  /**
   * @return the username
   */
  public String getUsername() {
    return username;
  }

  /**
   * @param username the username to set
   */
  public void setUsername(String username) {
    this.username = username;
  }

  private String convertToString(InputStream is) throws IOException {
    /*
     if (is != null) {
              Writer writer = new StringWriter();

              char[] buffer = new char[1024];
              try {
                  Reader reader = new BufferedReader(
                          new InputStreamReader(is, "UTF-8"));
                  int n;
                  while ((n = reader.read(buffer)) != -1) {
                      writer.write(buffer, 0, n);
                  }
              }
              finally {
                  is.close();
              }
              return writer.toString();
          } else {        
              return "";
          }
     */

        StringBuilder out = new StringBuilder();
        byte[] b = new byte[4096];
        for (int n; (n = is.read(b)) != -1;) {
            out.append(new String(b, 0, n));
        }
        return out.toString();
  }
}

Java Source Code List

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