WebView, Cookies et Client HTTP

**YemYem** · 13/02/2013, 12h06

Bonjour,

Voici le contexte : Une application Android qui va accéder à des pages web dont certaines nécessitent une authentification.

L'application a le cycle suivant : SplashScreen (Activity) -> LogScreen (Activity) -> MainScreen (SherlockFragmentActivity) -> WebViewFragment (SherlockFragment). Elle utilise également une classe de configuration du client HTTP.

Au niveau du LogScreen l'application affiche un formulaire de login qui grâce au client HTTP envoi en POST les informations nécessaires et suivant la réponse de la page de traitement du formulaire, lance l'activité suivante ou redemande les identifiants.
Toujours au niveau du login je récupère les cookies (session + perso) et les stocke. J'ai testé leur présence : Tout est ok.

Le problème est le suivant une fois le fragment contenant la WebView instancié, je synchronise le CookieStore du client HTTP avec le CookieManager de la WebView. Mais les pages loadées depuis la WebView agissent comme si les cookies n’existaient pas.

Voici le code du LogScreen :

Code :

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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
 
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
 
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
 
public class XXX_LogScreen extends Activity implements OnClickListener{
 
	public String sLogin = null;
	public String sPassword = null;
 
	private EditText login = null;
	private EditText password = null;
 
	private Button guest = null;
	private Button submit = null;
 
	static DefaultHttpClient httpClient = XXX_AppSettings.getClient();
 
	public static Cookie cookie = null;
 
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.log_screen);
 
        login = (EditText) findViewById(R.id.login_etw);
		password = (EditText) findViewById(R.id.password_etw);
 
		guest = (Button) findViewById(R.id.guest_b);
		submit = (Button) findViewById(R.id.submit_b);
 
		guest.setOnClickListener(this);
		submit.setOnClickListener(this);
    }
 
    public boolean isNetworkAvailable() {
 
		ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 
		return cm.getActiveNetworkInfo().isConnectedOrConnecting();
	}
 
	@Override
	public void onClick(View v) {
 
		if(v.getId() == R.id.guest_b){
 
			sLogin = "guest";
			sPassword = "pass_guest";
 
			if (isNetworkAvailable()) {
 
				sendPostRequest(sLogin, sPassword);
			}
 
			else {
 
				Toast.makeText(XXX_LogScreen.this, "Vous n'êtes pas connecté à internet.", Toast.LENGTH_LONG).show();
			}
		}
 
		else if(v.getId() == R.id.submit_b){
 
			sLogin = login.getEditableText().toString();
			sPassword = password.getEditableText().toString();
 
			System.out.println("Given username :" + sLogin + " Given password :" + sPassword);
 
			if (sLogin.length() == 0) {
 
				Toast.makeText(XXX_LogScreen.this, "Veuillez saisir votre adresse email.", Toast.LENGTH_LONG).show();
			}
 
			else if (sPassword.length() == 0){
 
				Toast.makeText(XXX_LogScreen.this, "Veuillez saisir votre mot de passe.", Toast.LENGTH_LONG).show();
			}
 
			else {
 
				if (isNetworkAvailable()) {
 
					sendPostRequest(sLogin, sPassword);
				}
 
				else {
 
					Toast.makeText(XXX_LogScreen.this, "Vous n'êtes pas connecté à internet.", Toast.LENGTH_LONG).show();
				}
			}
		}	
	}
 
	private void sendPostRequest(String givenUsername, String givenPassword) {
 
		class SendPostReqAsyncTask extends AsyncTask<String, Void, String>{
 
			@Override
			protected String doInBackground(String... params) {
 
				String paramUsername = params[0];
				String paramPassword = params[1];
 
				System.out.println("*** doInBackground ** paramUsername : " + paramUsername + " paramPassword : " + paramPassword);
 
				HttpPost httpPost = new HttpPost("http://www.xxxxxxxx.xxx/xxxxxxx/app_connect.php");
 
				BasicNameValuePair usernameBasicNameValuePair = new BasicNameValuePair("paramUsername", paramUsername);
				BasicNameValuePair passwordBasicNameValuePAir = new BasicNameValuePair("paramPassword", paramPassword);
 
				List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();
				nameValuePairList.add(usernameBasicNameValuePair);
				nameValuePairList.add(passwordBasicNameValuePAir);
 
				try {
 
					UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(nameValuePairList);
 
					httpPost.setEntity(urlEncodedFormEntity);
 
					try {
 
						HttpResponse httpResponse = httpClient.execute(httpPost);
 
						System.out.println("Post logon cookies:");
 
				        List<Cookie> cookies = httpClient.getCookieStore().getCookies();
 
				        if (cookies.isEmpty()) {
 
				            System.out.println("None");
 
				        } 
 
				        else {
 
				            for (int i = 0; i < cookies.size(); i++) {
 
				            	cookie = cookies.get(i);
 
				            	System.out.println("- " + cookies.get(i).toString());
 
				            }
				        }
 
						InputStream inputStream = httpResponse.getEntity().getContent();
 
						InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
 
						BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
 
						StringBuilder stringBuilder = new StringBuilder();
 
						String bufferedStrChunk = null;
 
						while((bufferedStrChunk = bufferedReader.readLine()) != null){
 
							stringBuilder.append(bufferedStrChunk);
						}
 
						return stringBuilder.toString();
 
					} catch (ClientProtocolException cpe) {
 
						System.out.println("First Exception caz of HttpResponese :" + cpe);
						cpe.printStackTrace();
 
					} catch (IOException ioe) {
 
						System.out.println("Second Exception caz of HttpResponse :" + ioe);
						ioe.printStackTrace();
					}
 
				} catch (UnsupportedEncodingException uee) {
 
					System.out.println("An Exception given because of UrlEncodedFormEntity argument :" + uee);
					uee.printStackTrace();
				}
 
				return null;
			}
 
			@Override
			protected void onPostExecute(String result) {
 
				super.onPostExecute(result);
 
				if(result.equals("working")){
 
					Intent intent = new Intent(XXX_LogScreen.this, XXX_MainScreen.class);
					startActivity(intent);
					finish();
				}
 
				else{
 
					Toast.makeText(getApplicationContext(), "Identification incorrecte !", Toast.LENGTH_LONG).show();
				}
			}			
		}
 
		SendPostReqAsyncTask sendPostReqAsyncTask = new SendPostReqAsyncTask();
		sendPostReqAsyncTask.execute(givenUsername, givenPassword);		
	}
}

Le code du WebViewFragment :

Code :

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import java.util.List;
 
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
 
import com.actionbarsherlock.app.SherlockFragment;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.view.MenuInflater;
 
import android.annotation.SuppressLint;
import android.content.Intent;
import android.support.v4.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.CookieManager;
import android.webkit.CookieSyncManager;
import android.webkit.WebBackForwardList;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
 
public class XXX_WebViewFragment extends SherlockFragment implements ActionBar.TabListener {
 
	private static final String STATE_SELECTED_NAVIGATION_ITEM = "selected_navigation_item";
 
	private WebView webView = null;
	private MenuItem loginItem = null;
	private WebSettings webSettings = null;
	private WebViewClient webViewClient = null;
	private CookieManager cookieManager = null;
	private com.actionbarsherlock.app.ActionBar actionBar = null;
 
	private static DefaultHttpClient myHttpClient = XXX_AppSettings.getClient();
 
 
	@Override
	public void onCreate(Bundle savedInstanceState) {
 
		super.onCreate(savedInstanceState);
 
	}
 
	@Override
	public void onSaveInstanceState(Bundle outState) {
 
	    super.onSaveInstanceState(outState);
 
	    outState.putInt(STATE_SELECTED_NAVIGATION_ITEM, getSherlockActivity().getSupportActionBar().getSelectedNavigationIndex());
 
	    webView.saveState(outState);        
	}
 
	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 
		actionBar = getSherlockActivity().getSupportActionBar();
 
		actionBar.setDisplayHomeAsUpEnabled(true);
 
		inflater.inflate(R.menu.main_screen_menu, menu);
 
		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 
 
	}	
 
	@Override
	public void onActivityCreated(Bundle savedInstanceState) {
 
		super.onActivityCreated(savedInstanceState);
	}	
 
	@Override
	@SuppressLint("SetJavaScriptEnabled")
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 
		View view = inflater.inflate(R.layout.webview_fragment, container, false);
 
		webView = (WebView) view.findViewById(R.id.webView_wfs);
 
		webSettings = webView.getSettings();
 
		webSettings.setJavaScriptEnabled(true);
		webSettings.setGeolocationEnabled(true);
		webSettings.setLoadWithOverviewMode(true);
 
		webViewClient = new WebViewClient() {
 
			public void onPageFinished(WebView view, String url) {
 
		        CookieSyncManager.getInstance().sync();
		    }
		};
 
		webView.setWebViewClient(webViewClient);
 
		Cookie sessionInfo;
 
		List<Cookie> cookies = myHttpClient.getCookieStore().getCookies();
 
		if (! cookies.isEmpty()) {
 
			CookieSyncManager.createInstance(webView.getContext());
		    cookieManager = CookieManager.getInstance();
 
		    for(Cookie cookie : cookies) {
 
		    	sessionInfo = cookie;
		        String cookieString = sessionInfo.getName() + "=" + sessionInfo.getValue() + "; domain=" + sessionInfo.getDomain();
		        cookieManager.setCookie("xxxxx.xxx", cookieString);
		        CookieSyncManager.getInstance().sync();
		    }
		}
 
		setHasOptionsMenu(true);
 
		return view;
	}
 
[...]
 
}

Et enfin le code du client http :

Code :

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import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
 
import android.app.Application;
 
public class XXX_AppSettings extends Application{
 
	private static final DefaultHttpClient client = createClient();
 
	@Override
	public void onCreate(){
 
	}
 
	static DefaultHttpClient getClient(){
 
		return client;
	}
 
	private static DefaultHttpClient createClient(){
 
		final SSLSocketFactory sslSocketFactory = SSLSocketFactory.getSocketFactory();
 
		BasicHttpParams params = new BasicHttpParams();
		SchemeRegistry schemeRegistry = new SchemeRegistry();
 
		schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
		schemeRegistry.register(new Scheme("https", sslSocketFactory, 443));
 
		ClientConnectionManager cm = new ThreadSafeClientConnManager(params, schemeRegistry);
 
		DefaultHttpClient httpclient = new DefaultHttpClient(cm, params);
 
		httpclient.getCookieStore().getCookies();
 
		return httpclient;
	}
}

Si quelqu'un a une idée, je suis preneur.

D'avance merci !

WebView, Cookies et Client HTTP

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