Big refactor, ProviderAPI looks better.

12 files changed, 316 insertions, 325 deletions

diff --git a/app/src/debug/java/se/leap/bitmaskclient/ConfigurationWizard.java b/app/src/debug/java/se/leap/bitmaskclient/ConfigurationWizard.java
index c405d06f..7fc5150b 100644
--- a/app/src/debug/java/se/leap/bitmaskclient/ConfigurationWizard.java
+++ b/app/src/debug/java/se/leap/bitmaskclient/ConfigurationWizard.java
@@ -571,7 +571,7 @@ implements ProviderListFragment.Callbacks, NewProviderDialogInterface, ProviderD
 	@Override

 	public void login() {

 		Intent ask_login = new Intent();

-		ask_login.putExtra(LogInDialog.VERB, LogInDialog.VERB);

+		ask_login.putExtra(LogInDialog.TAG, LogInDialog.TAG);
 		setResult(RESULT_OK, ask_login);

 		setting_up_provider = false;

 		finish();

diff --git a/app/src/debug/java/se/leap/bitmaskclient/ProviderAPI.java b/app/src/debug/java/se/leap/bitmaskclient/ProviderAPI.java
index f51099a3..93014dc9 100644
--- a/app/src/debug/java/se/leap/bitmaskclient/ProviderAPI.java
+++ b/app/src/debug/java/se/leap/bitmaskclient/ProviderAPI.java
@@ -93,8 +93,6 @@ public class ProviderAPI extends IntentService {
     PARAMETERS = "parameters",
     RESULT_KEY = "result",
     RECEIVER_KEY = "receiver",
-    SESSION_ID_COOKIE_KEY = "session_id_cookie_key",
-    SESSION_ID_KEY = "session_id",
     ERRORS = "errors",
     UPDATE_PROGRESSBAR = "update_progressbar",
     CURRENT_PROGRESS = "current_progress",
@@ -127,6 +125,7 @@ public class ProviderAPI extends IntentService {
     private static boolean last_danger_on = false;
     private static boolean setting_up_provider = true;
     private static SharedPreferences preferences;
+    private static String provider_api_url;
     
     public static void stop() {
     	setting_up_provider = false;
@@ -174,7 +173,7 @@ public class ProviderAPI extends IntentService {
 				}
 			}
 		} else if (action.equalsIgnoreCase(SRP_REGISTER)) {
-		    Bundle session_id_bundle = tryToRegisterWithSRP(parameters);
+		    Bundle session_id_bundle = tryToRegister(parameters);
 		    if(session_id_bundle.getBoolean(RESULT_KEY)) {
 			receiver.send(SRP_REGISTRATION_SUCCESSFUL, session_id_bundle);
 		    } else {
@@ -188,7 +187,7 @@ public class ProviderAPI extends IntentService {
 					receiver.send(SRP_AUTHENTICATION_FAILED, session_id_bundle);
 				}
 		} else if (action.equalsIgnoreCase(LOG_OUT)) {
-				if(logOut(parameters)) {
+				if(logOut()) {
 					receiver.send(LOGOUT_SUCCESSFUL, Bundle.EMPTY);
 				} else {
 					receiver.send(LOGOUT_FAILED, Bundle.EMPTY);
@@ -202,44 +201,45 @@ public class ProviderAPI extends IntentService {
 		}
 	}
 
-    private Bundle tryToRegisterWithSRP(Bundle task) {
+    private Bundle tryToRegister(Bundle task) {
 	Bundle session_id_bundle = new Bundle();
 	int progress = 0;
 		
-	String username = (String) task.get(LogInDialog.USERNAME);
-	String password = (String) task.get(LogInDialog.PASSWORD);
-	String authentication_server = (String) task.get(Provider.API_URL);
+	String username = (String) task.get(SessionDialogInterface.USERNAME);
+	String password = (String) task.get(SessionDialogInterface.PASSWORD);
+	
 	if(validUserLoginData(username, password)) {
-	    session_id_bundle = registerWithSRP(username, password, authentication_server);
+	    session_id_bundle = register(username, password);
 	    broadcast_progress(progress++);
 	} else {
 	    if(!wellFormedPassword(password)) {
 		session_id_bundle.putBoolean(RESULT_KEY, false);
-		session_id_bundle.putString(LogInDialog.USERNAME, username);
-		session_id_bundle.putBoolean(LogInDialog.PASSWORD_INVALID_LENGTH, true);
+		session_id_bundle.putString(SessionDialogInterface.USERNAME, username);
+		session_id_bundle.putBoolean(SessionDialogInterface.PASSWORD_INVALID_LENGTH, true);
 	    }
 	    if(username.isEmpty()) {
 		session_id_bundle.putBoolean(RESULT_KEY, false);
-		session_id_bundle.putBoolean(LogInDialog.USERNAME_MISSING, true);
+		session_id_bundle.putBoolean(SessionDialogInterface.USERNAME_MISSING, true);
 	    }
 	}
 		
 	return session_id_bundle;
     }
 
-    private Bundle registerWithSRP(String username, String password, String server) {	
+    private Bundle register(String username, String password) {	
 	LeapSRPSession client = new LeapSRPSession(username, password);
 	byte[] salt = client.calculateNewSalt();
 	
 	BigInteger password_verifier = client.calculateV(username, password, salt);
-	JSONObject api_result = sendNewUserDataToSRPServer(server, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16));
+	
+	JSONObject api_result = sendNewUserDataToSRPServer(provider_api_url, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16));
 	
 	Bundle result = new Bundle();
 	if(api_result.has(ERRORS))
 	    result = authFailedNotification(api_result, username);
 	else {
-	    result.putString(LogInDialog.USERNAME, username);
-	    result.putString(LogInDialog.PASSWORD, password);
+	    result.putString(SessionDialogInterface.USERNAME, username);
+	    result.putString(SessionDialogInterface.PASSWORD, password);
 	    result.putBoolean(RESULT_KEY, true);
 	}
 
@@ -251,26 +251,24 @@ public class ProviderAPI extends IntentService {
 	 * @param task containing: username, password and api url. 
 	 * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if authentication was successful. 
 	 */
-	private Bundle tryToAuthenticateBySRP(Bundle task) {
+	private Bundle tryToAuthenticate(Bundle task) {
 	    Bundle result = new Bundle();
 	    int progress = 0;
 		
-	    String username = (String) task.get(LogInDialog.USERNAME);
-	    String password = (String) task.get(LogInDialog.PASSWORD);
-	    if(validUserLoginData(username, password)) {
-		String server = (String) task.get(Provider.API_URL);
-
-		result = authenticate(username, password, server);
+	    String username = (String) task.get(SessionDialogInterface.USERNAME);
+	    String password = (String) task.get(SessionDialogInterface.PASSWORD);
+	    if(validUserLoginData(username, password)) {		
+		result = authenticate(username, password);
 		broadcast_progress(progress++);
 	    } else {
 		if(!wellFormedPassword(password)) {
 		    result.putBoolean(RESULT_KEY, false);
-		    result.putString(LogInDialog.USERNAME, username);
-		    result.putBoolean(LogInDialog.PASSWORD_INVALID_LENGTH, true);
+		    result.putString(SessionDialogInterface.USERNAME, username);
+		    result.putBoolean(SessionDialogInterface.PASSWORD_INVALID_LENGTH, true);
 		}
 		if(username.isEmpty()) {
 		    result.putBoolean(RESULT_KEY, false);
-		    result.putBoolean(LogInDialog.USERNAME_MISSING, true);
+		    result.putBoolean(SessionDialogInterface.USERNAME_MISSING, true);
 		}
 	    }
 		
@@ -278,19 +276,19 @@ public class ProviderAPI extends IntentService {
 	}
 
 
-    private Bundle authenticate(String username, String password, String server) {
+    private Bundle authenticate(String username, String password) {
 	Bundle result = new Bundle();
 	
 	LeapSRPSession client = new LeapSRPSession(username, password);
 	byte[] A = client.exponential();
 	
-	JSONObject step_result = sendAToSRPServer(server, username, new BigInteger(1, A).toString(16));
+	JSONObject step_result = sendAToSRPServer(provider_api_url, username, new BigInteger(1, A).toString(16));
 	try {
 	    String salt = step_result.getString(LeapSRPSession.SALT);
 	    byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray();
 	    byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes);
 	    if(M1 != null) {
-		step_result = sendM1ToSRPServer(server, username, M1);
+		step_result = sendM1ToSRPServer(provider_api_url, username, M1);
 		setTokenIfAvailable(step_result);
 		byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray();
 		if(client.verify(M2)) {
@@ -300,7 +298,7 @@ public class ProviderAPI extends IntentService {
 		}
 	    } else {
 		result.putBoolean(RESULT_KEY, false);
-		result.putString(LogInDialog.USERNAME, username);
+		result.putString(SessionDialogInterface.USERNAME, username);
 		result.putString(getResources().getString(R.string.user_message), getResources().getString(R.string.error_srp_math_error_user_message));
 	    }
 	} catch (JSONException e) {
@@ -331,7 +329,7 @@ public class ProviderAPI extends IntentService {
 	} catch(JSONException e) {}
 	
 	if(!username.isEmpty())
-	    user_notification_bundle.putString(LogInDialog.USERNAME, username);
+	    user_notification_bundle.putString(SessionDialogInterface.USERNAME, username);
 	user_notification_bundle.putBoolean(RESULT_KEY, false);
 
 	return user_notification_bundle;
@@ -619,6 +617,7 @@ public class ProviderAPI extends IntentService {
 
 			try {
 				JSONObject provider_json = new JSONObject(provider_dot_json_string);
+				provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION);
 				String name = provider_json.getString(Provider.NAME);
 				//TODO setProviderName(name);
 
@@ -860,46 +859,46 @@ public class ProviderAPI extends IntentService {
 	 * @param task containing api url from which the user will log out
 	 * @return true if there were no exceptions
 	 */
-	private boolean logOut(Bundle task) {
-		try {
-			String delete_url = task.getString(Provider.API_URL) + "/logout";
-			int progress = 0;
+    private boolean logOut() {
+	try {
+	    String delete_url = provider_api_url + "/logout";
+	    int progress = 0;
 
-			HttpsURLConnection urlConnection = (HttpsURLConnection)new URL(delete_url).openConnection();
-			urlConnection.setRequestMethod("DELETE");
-			urlConnection.setSSLSocketFactory(getProviderSSLSocketFactory());
+	    HttpsURLConnection urlConnection = (HttpsURLConnection)new URL(delete_url).openConnection();
+	    urlConnection.setRequestMethod("DELETE");
+	    urlConnection.setSSLSocketFactory(getProviderSSLSocketFactory());
 
-			int responseCode = urlConnection.getResponseCode();
-			broadcast_progress(progress++);
-			LeapSRPSession.setToken("");
-			Log.d(TAG, Integer.toString(responseCode));
-		} catch (ClientProtocolException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-			return false;
-		} catch (IndexOutOfBoundsException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-			return false;
-		} catch (IOException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-			return false;
-		} catch (KeyManagementException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		} catch (KeyStoreException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		} catch (NoSuchAlgorithmException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		} catch (CertificateException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
-		return true;
+	    int responseCode = urlConnection.getResponseCode();
+	    broadcast_progress(progress++);
+	    LeapSRPSession.setToken("");
+	    Log.d(TAG, Integer.toString(responseCode));
+	} catch (ClientProtocolException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	    return false;
+	} catch (IndexOutOfBoundsException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	    return false;
+	} catch (IOException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	    return false;
+	} catch (KeyManagementException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	} catch (KeyStoreException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	} catch (NoSuchAlgorithmException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
+	} catch (CertificateException e) {
+	    // TODO Auto-generated catch block
+	    e.printStackTrace();
 	}
+	return true;
+    }
 
     private boolean updateVpnCertificate() {
 	getNewCert();
diff --git a/app/src/main/java/se/leap/bitmaskclient/Dashboard.java b/app/src/main/java/se/leap/bitmaskclient/Dashboard.java
index 16e4cf03..286d88c3 100644
--- a/app/src/main/java/se/leap/bitmaskclient/Dashboard.java
+++ b/app/src/main/java/se/leap/bitmaskclient/Dashboard.java
@@ -75,8 +75,6 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 	protected static SharedPreferences preferences;
 	private static Provider provider;
 
-	private TextView providerNameTV;
-
 	private boolean authed_eip = false;
 
     public ProviderAPIResultReceiver providerAPI_result_receiver;
@@ -143,7 +141,7 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 				startService(updateEIP);
 				buildDashboard(false);
 				invalidateOptionsMenu();
-				if(data != null && data.hasExtra(LogInDialog.VERB)) {
+				if(data != null && data.hasExtra(LogInDialog.TAG)) {
 					View view = ((ViewGroup)findViewById(android.R.id.content)).getChildAt(0);
 					logInDialog(Bundle.EMPTY);
 				}
@@ -190,7 +188,7 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 
 		setContentView(R.layout.client_dashboard);
 	    
-		providerNameTV = (TextView) findViewById(R.id.providerName);
+		TextView providerNameTV = (TextView) findViewById(R.id.providerName);
 		providerNameTV.setText(provider.getDomain());
 		providerNameTV.setTextSize(28);
 		
@@ -269,14 +267,13 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 			startActivityForResult(new Intent(this,ConfigurationWizard.class), SWITCH_PROVIDER);
 			return true;
 		case R.id.login_button:
-			View view = ((ViewGroup)findViewById(android.R.id.content)).getChildAt(0);
 			logInDialog(Bundle.EMPTY);
 			return true;
 		case R.id.logout_button:
 			logOut();
 			return true;
 		case R.id.signup_button:
-			signUpDialog(((ViewGroup)findViewById(android.R.id.content)).getChildAt(0), Bundle.EMPTY);
+			signUpDialog(Bundle.EMPTY);
 			return true;
 		default:
 				return super.onOptionsItemSelected(item);
@@ -284,38 +281,59 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 		
 	}
 
-	@Override
-	public void authenticate(String username, String password) {
-	    mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
-		eipStatus = (TextView) findViewById(R.id.eipStatus);
+    private Intent prepareProviderAPICommand() {	    
+	mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
+	eipStatus = (TextView) findViewById(R.id.eipStatus);
 		
-		providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler());
-		providerAPI_result_receiver.setReceiver(this);
+	providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler());
+	providerAPI_result_receiver.setReceiver(this);
 		
-		Intent provider_API_command = new Intent(this, ProviderAPI.class);
-
-		Bundle parameters = new Bundle();
-		parameters.putString(LogInDialog.USERNAME, username);
-		parameters.putString(LogInDialog.PASSWORD, password);
+	Intent command = new Intent(this, ProviderAPI.class);
 
-		JSONObject provider_json;
-		try {
-			provider_json = new JSONObject(preferences.getString(Provider.KEY, ""));
-			parameters.putString(Provider.API_URL, provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION));
-		} catch (JSONException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
+	command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver);
+	return command;
+    }
 
-		provider_API_command.setAction(ProviderAPI.SRP_AUTH);
-		provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
-		provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver);
-		
-		mProgressBar.setVisibility(ProgressBar.VISIBLE);
-		eipStatus.setText(R.string.authenticating_message);
-		//mProgressBar.setMax(4);
-		startService(provider_API_command);
+    private FragmentTransaction removePreviousFragment(String tag) {
+	FragmentTransaction transaction = getFragmentManager().beginTransaction();
+	Fragment previous_fragment = getFragmentManager().findFragmentByTag(tag);
+	if (previous_fragment != null) {
+	    transaction.remove(previous_fragment);
 	}
+	transaction.addToBackStack(null);
+
+	return transaction;
+    }
+    
+    /**
+     * Shows the log in dialog.
+     */
+    public void logInDialog(Bundle resultData) {
+	FragmentTransaction transaction = removePreviousFragment(LogInDialog.TAG);
+
+	DialogFragment newFragment = LogInDialog.newInstance();
+	if(resultData != null && !resultData.isEmpty())
+	    newFragment.setArguments(resultData);
+	newFragment.show(transaction, LogInDialog.TAG);
+    }
+
+    @Override
+    public void logIn(String username, String password) {
+	Intent provider_API_command = prepareProviderAPICommand();
+	Bundle parameters = provider_API_command.getExtras().getBundle(ProviderAPI.PARAMETERS);
+	if(parameters == null)
+	    parameters = new Bundle();
+	    
+	parameters.putString(SessionDialogInterface.USERNAME, username);
+	parameters.putString(SessionDialogInterface.PASSWORD, password);
+
+	mProgressBar.setVisibility(ProgressBar.VISIBLE);
+	eipStatus.setText(R.string.authenticating_message);
+
+	provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
+	provider_API_command.setAction(ProviderAPI.SRP_AUTH);
+	startService(provider_API_command);
+    }
 
     public void cancelAuthedEipOn() {
 	EipServiceFragment eipFragment = (EipServiceFragment) getFragmentManager().findFragmentByTag(EipServiceFragment.TAG);
@@ -323,125 +341,59 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
     }
 
     public void cancelLoginOrSignup() {
-	if(mProgressBar == null) mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
-	if(mProgressBar != null) {
-	    mProgressBar.setVisibility(ProgressBar.GONE);
-	    if(eipStatus == null) eipStatus = (TextView) findViewById(R.id.eipStatus);
-	    if(eipStatus != null) eipStatus.setText("");
-	}
-	cancelAuthedEipOn();
+	hideProgressBar();
     }
 	
-	/**
-	 * Asks ProviderAPI to log out.
-	 */
-	public void logOut() {
-		providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler());
-		providerAPI_result_receiver.setReceiver(this);
-		Intent provider_API_command = new Intent(this, ProviderAPI.class);
-
-		Bundle parameters = new Bundle();
-
-		JSONObject provider_json;
-		try {
-			provider_json = new JSONObject(preferences.getString(Provider.KEY, ""));
-			parameters.putString(Provider.API_URL, provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION));
-		} catch (JSONException e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
-		}
-
-		provider_API_command.setAction(ProviderAPI.LOG_OUT);
-		provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
-		provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver);
-		
-		if(mProgressBar == null) mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
-		mProgressBar.setVisibility(ProgressBar.VISIBLE);
-		if(eipStatus == null) eipStatus = (TextView) findViewById(R.id.eipStatus);
-		eipStatus.setText(R.string.logout_message);
-	//	eipStatus.setText("Starting to logout");
-		
-		startService(provider_API_command);
-		//mProgressBar.setMax(1);
-
-	}
-	
-	/**
-	 * Shows the log in dialog.
-	 */
-	public void logInDialog(Bundle resultData) {
-	    Log.d("Dashboard", "Log In Dialog");
-		FragmentTransaction fragment_transaction = getFragmentManager().beginTransaction();
-	    Fragment previous_log_in_dialog = getFragmentManager().findFragmentByTag(LogInDialog.TAG);
-	    if (previous_log_in_dialog != null) {
-	        fragment_transaction.remove(previous_log_in_dialog);
-	    }
-	    fragment_transaction.addToBackStack(null);
-
-	    DialogFragment newFragment = LogInDialog.newInstance();
-	    if(resultData != null && !resultData.isEmpty()) {
-	    	newFragment.setArguments(resultData);
-	    }
-	    newFragment.show(fragment_transaction, LogInDialog.TAG);
-	}
-
-    	@Override
-	public void signUp(String username, String password) {
-	    mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
-	    eipStatus = (TextView) findViewById(R.id.eipStatus);
-		
-	    providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler());
-	    providerAPI_result_receiver.setReceiver(this);
-		
-	    Intent provider_API_command = new Intent(this, ProviderAPI.class);
-
-	    Bundle parameters = new Bundle();
-	    parameters.putString(SignUpDialog.USERNAME, username);
-	    parameters.putString(SignUpDialog.PASSWORD, password);
-
-	    JSONObject provider_json;
-	    try {
-		provider_json = new JSONObject(preferences.getString(Provider.KEY, ""));
-		parameters.putString(Provider.API_URL, provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION));
-	    } catch (JSONException e) {
-		// TODO Auto-generated catch block
-		e.printStackTrace();
-	    }
-
-	    provider_API_command.setAction(ProviderAPI.SRP_REGISTER);
-	    provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
-	    provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver);
+    /**
+     * Asks ProviderAPI to log out.
+     */
+    public void logOut() {
+	Intent provider_API_command = prepareProviderAPICommand();
+	    
+	if(mProgressBar == null) mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
+	mProgressBar.setVisibility(ProgressBar.VISIBLE);
+	if(eipStatus == null) eipStatus = (TextView) findViewById(R.id.eipStatus);
+	eipStatus.setText(R.string.logout_message);
 		
-	    mProgressBar.setVisibility(ProgressBar.VISIBLE);
-	    eipStatus.setText(R.string.signingup_message);
-	    //mProgressBar.setMax(4);
-	    startService(provider_API_command);
-	}
+	provider_API_command.setAction(ProviderAPI.LOG_OUT);
+	startService(provider_API_command);
+    }
     
-	/**
-	 * Shows the sign up dialog.
-	 * @param view from which the dialog is created.
-	 */
-	public void signUpDialog(View view, Bundle resultData) {
-	    FragmentTransaction fragment_transaction = getFragmentManager().beginTransaction();
-	    Fragment previous_sign_up_dialog = getFragmentManager().findFragmentByTag(SignUpDialog.TAG);
-	    if (previous_sign_up_dialog != null) {
-	        fragment_transaction.remove(previous_sign_up_dialog);
-	    }
-	    fragment_transaction.addToBackStack(null);
-
-	    DialogFragment newFragment = SignUpDialog.newInstance();
-	    if(resultData != null && !resultData.isEmpty()) {
-	    	newFragment.setArguments(resultData);
-	    }
-	    newFragment.show(fragment_transaction, SignUpDialog.TAG);
+    /**
+     * Shows the sign up dialog.
+     */
+    public void signUpDialog(Bundle resultData) {
+	FragmentTransaction transaction = removePreviousFragment(SignUpDialog.TAG);
+
+	DialogFragment newFragment = SignUpDialog.newInstance();
+	if(resultData != null && !resultData.isEmpty()) {
+	    newFragment.setArguments(resultData);
 	}
+	newFragment.show(transaction, SignUpDialog.TAG);
+    }
+
+    @Override
+    public void signUp(String username, String password) {
+	Intent provider_API_command = prepareProviderAPICommand();
+	Bundle parameters = provider_API_command.getExtras().getBundle(ProviderAPI.PARAMETERS);
+	if(parameters == null)
+	    parameters = new Bundle();
+	    
+	parameters.putString(SessionDialogInterface.USERNAME, username);
+	parameters.putString(SessionDialogInterface.PASSWORD, password);
+	
+	mProgressBar.setVisibility(ProgressBar.VISIBLE);
+	eipStatus.setText(R.string.signingup_message);
+	
+	provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
+	provider_API_command.setAction(ProviderAPI.SRP_REGISTER);
+	startService(provider_API_command);
+    }
 
 	/**
 	 * Asks ProviderAPI to download an authenticated OpenVPN certificate.
-	 * @param session_id cookie for the server to allow us to download the certificate.
 	 */
-	private void downloadAuthedUserCertificate(/*Cookie session_id*/) {
+	private void downloadAuthedUserCertificate() {
 		providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler());
 		providerAPI_result_receiver.setReceiver(this);
 		
@@ -449,8 +401,6 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 
 		Bundle parameters = new Bundle();
 		parameters.putString(ConfigurationWizard.TYPE_OF_CERTIFICATE, ConfigurationWizard.AUTHED_CERTIFICATE);
-		/*parameters.putString(ConfigHelper.SESSION_ID_COOKIE_KEY, session_id.getName());
-		parameters.putString(ConfigHelper.SESSION_ID_KEY, session_id.getValue());*/
 
 		provider_API_command.setAction(ProviderAPI.DOWNLOAD_CERTIFICATE);
 		provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters);
@@ -461,50 +411,55 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 
 	@Override
 	public void onReceiveResult(int resultCode, Bundle resultData) {
-	    if(resultCode == ProviderAPI.SRP_REGISTRATION_SUCCESSFUL){
-		authenticate(resultData.getString(LogInDialog.USERNAME), resultData.getString(LogInDialog.PASSWORD));
-	    } else if(resultCode == ProviderAPI.SRP_REGISTRATION_FAILED){
-		signUpDialog(((ViewGroup)findViewById(android.R.id.content)).getChildAt(0), resultData);
-	    } else if(resultCode == ProviderAPI.SRP_AUTHENTICATION_SUCCESSFUL){
-			String session_id_cookie_key = resultData.getString(ProviderAPI.SESSION_ID_COOKIE_KEY);
-			String session_id_string = resultData.getString(ProviderAPI.SESSION_ID_KEY);
-			setResult(RESULT_OK);
-
-			authed_eip = true;
-			preferences.edit().putBoolean(EIP.AUTHED_EIP, authed_eip).commit();
-
-			invalidateOptionsMenu();
-        	mProgressBar.setVisibility(ProgressBar.GONE);
-    		changeStatusMessage(resultCode);
+	    if(resultCode == ProviderAPI.SRP_REGISTRATION_SUCCESSFUL) {
+		String username = resultData.getString(SessionDialogInterface.USERNAME);
+		String password = resultData.getString(SessionDialogInterface.PASSWORD);
+		logIn(username, password);
+	    } else if(resultCode == ProviderAPI.SRP_REGISTRATION_FAILED) {
+		changeStatusMessage(resultCode);
+		hideProgressBar();
+		
+		signUpDialog(resultData);
+	    } else if(resultCode == ProviderAPI.SRP_AUTHENTICATION_SUCCESSFUL) {
+		changeStatusMessage(resultCode);
+		hideProgressBar();
+		
+		invalidateOptionsMenu();
+		
+		authed_eip = true;
+		preferences.edit().putBoolean(EIP.AUTHED_EIP, authed_eip).commit();
 
-        	//Cookie session_id = new BasicClientCookie(session_id_cookie_key, session_id_string);
-        	downloadAuthedUserCertificate(/*session_id*/);
-		} else if(resultCode == ProviderAPI.SRP_AUTHENTICATION_FAILED) {
-		    logInDialog(resultData);
-		} else if(resultCode == ProviderAPI.LOGOUT_SUCCESSFUL) {
-			authed_eip = false;
-			preferences.edit().putBoolean(EIP.AUTHED_EIP, authed_eip).commit();
-			mProgressBar.setVisibility(ProgressBar.GONE);
-			mProgressBar.setProgress(0);
-			invalidateOptionsMenu();
-			setResult(RESULT_OK);
-			changeStatusMessage(resultCode);
-
-		} else if(resultCode == ProviderAPI.LOGOUT_FAILED) {
-			setResult(RESULT_CANCELED);
-			changeStatusMessage(resultCode);
-        	mProgressBar.setVisibility(ProgressBar.GONE);		    
-		} else if(resultCode == ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE) {
-        	setResult(RESULT_OK);
+        	downloadAuthedUserCertificate();
+	    } else if(resultCode == ProviderAPI.SRP_AUTHENTICATION_FAILED) {
+		changeStatusMessage(resultCode);
+		hideProgressBar();
+		
+		logInDialog(resultData);
+	    } else if(resultCode == ProviderAPI.LOGOUT_SUCCESSFUL) {
+		changeStatusMessage(resultCode);
+		hideProgressBar();
+		
+		invalidateOptionsMenu();
+		
+		authed_eip = false;
+		preferences.edit().putBoolean(EIP.AUTHED_EIP, authed_eip).commit();
+
+	    } else if(resultCode == ProviderAPI.LOGOUT_FAILED) {
+		changeStatusMessage(resultCode);
+		hideProgressBar();
+		
+		setResult(RESULT_CANCELED);
+	    } else if(resultCode == ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE) {
     		changeStatusMessage(resultCode);
-		if(mProgressBar != null)
-		    mProgressBar.setVisibility(ProgressBar.GONE);
+		hideProgressBar();
+		
+        	setResult(RESULT_OK);
 		eipStart();
-		} else if(resultCode == ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE) {
-        	setResult(RESULT_CANCELED);
+	    } else if(resultCode == ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE) {
     		changeStatusMessage(resultCode);
-        	mProgressBar.setVisibility(ProgressBar.GONE);
- 		}
+		hideProgressBar();
+        	setResult(RESULT_CANCELED);
+	    }
 	}
 
 	private void changeStatusMessage(final int previous_result_code) {
@@ -513,6 +468,7 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 			protected void onReceiveResult(int resultCode, Bundle resultData){
 				super.onReceiveResult(resultCode, resultData);
 				String request = resultData.getString(EIP.REQUEST_TAG);
+				if(eipStatus == null) eipStatus = (TextView) findViewById(R.id.eipStatus);
 				if (request.equalsIgnoreCase(EIP.ACTION_IS_EIP_RUNNING)){					
 					if (resultCode == Activity.RESULT_OK){
 
@@ -532,6 +488,7 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 
 						case ProviderAPI.SRP_AUTHENTICATION_SUCCESSFUL: eipStatus.setText(R.string.succesful_authentication_message); break;
 						case ProviderAPI.SRP_AUTHENTICATION_FAILED: eipStatus.setText(R.string.authentication_failed_message); break;
+						case ProviderAPI.SRP_REGISTRATION_FAILED: eipStatus.setText(R.string.registration_failed_message); break;
 						case ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE: break;
 						case ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE: eipStatus.setText(R.string.incorrectly_downloaded_certificate_message); break;
 						case ProviderAPI.LOGOUT_SUCCESSFUL: eipStatus.setText(R.string.logged_out_message); break;
@@ -545,6 +502,14 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 		eipIsRunning(eip_status_receiver);		
 	}
 
+    private void hideProgressBar() {
+	if(mProgressBar == null)
+	    mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);
+
+	mProgressBar.setProgress(0);
+	mProgressBar.setVisibility(ProgressBar.GONE);
+    }
+
 	/**
 	 * For retrieving the base application Context in classes that don't extend
 	 * Android's Activity class
@@ -556,11 +521,12 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 	}
 
 	
-	@Override
+    @Override
     public void startActivityForResult(Intent intent, int requestCode) {
         intent.putExtra(Dashboard.REQUEST_CODE, requestCode);
         super.startActivityForResult(intent, requestCode);
     }
+    
 	/**
 	 * Send a command to EIP
 	 * 
@@ -575,30 +541,22 @@ public class Dashboard extends Activity implements LogInDialog.LogInDialogInterf
 		startService(eip_intent);
 	}
 	
-	/**
-	 * Send a command to EIP
-	 * 	
-	 */
-	private void eipStop(){
-		// TODO validate "action"...how do we get the list of intent-filters for a class via Android API?
-		Intent eip_intent = new Intent(this, EIP.class);
-		eip_intent.setAction(EIP.ACTION_STOP_EIP);
-	//	eip_intent.putExtra(EIP.RECEIVER_TAG, eip_receiver);fi
-		startService(eip_intent);
-		
-	}
+    private void eipStop(){
+	// TODO validate "action"...how do we get the list of intent-filters for a class via Android API?
+	Intent eip_intent = new Intent(this, EIP.class);
+	eip_intent.setAction(EIP.ACTION_STOP_EIP);
+	startService(eip_intent);		
+    }
 
-    private void eipStart(){
+    private void eipStart() {
 	Intent eip_intent = new Intent(this, EIP.class);
 	eip_intent.setAction(EIP.ACTION_START_EIP);
-	eip_intent.putExtra(EIP.RECEIVER_TAG, EipServiceFragment.getReceiver());
-	startService(eip_intent);
-
+	startService(eip_intent);	
     }
 
-    protected void setProgressBarVisibility(int visibility) {
+    protected void showProgressBar() {
 	if(mProgressBar == null)
 	    mProgressBar = (ProgressBar) findViewById(R.id.eipProgress);	    
-	mProgressBar.setVisibility(visibility);
+	mProgressBar.setVisibility(ProgressBar.VISIBLE);
     }
 }
diff --git a/app/src/main/java/se/leap/bitmaskclient/EIP.java b/app/src/main/java/se/leap/bitmaskclient/EIP.java
index 4a8bae46..1b34ac21 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EIP.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EIP.java
@@ -155,6 +155,7 @@ public final class EIP extends IntentService {
 	activeGateway = selectGateway();
 	    
 	if(activeGateway != null && activeGateway.mVpnProfile != null) {
+	    mReceiver = EipServiceFragment.getReceiver();
 	    launchActiveGateway();
 	}
     }
diff --git a/app/src/main/java/se/leap/bitmaskclient/EipServiceFragment.java b/app/src/main/java/se/leap/bitmaskclient/EipServiceFragment.java
index 18ee0262..57e009dc 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EipServiceFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EipServiceFragment.java
@@ -380,7 +380,7 @@ public class EipServiceFragment extends Fragment implements StateListener, OnChe
 			    case Activity.RESULT_CANCELED:
 				Dashboard dashboard = (Dashboard) getActivity();
 
-				dashboard.setProgressBarVisibility(ProgressBar.VISIBLE);
+				dashboard.showProgressBar();
 				String status = getResources().getString(R.string.updating_certificate_message);
 				setEipStatus(status);
 				
diff --git a/app/src/main/java/se/leap/bitmaskclient/LogInDialog.java b/app/src/main/java/se/leap/bitmaskclient/LogInDialog.java
index 45d3a373..5a0c9a6d 100644
--- a/app/src/main/java/se/leap/bitmaskclient/LogInDialog.java
+++ b/app/src/main/java/se/leap/bitmaskclient/LogInDialog.java
@@ -42,15 +42,10 @@ import android.widget.TextView;
  * @author parmegv
  *
  */
-public class LogInDialog extends DialogFragment {
+public class LogInDialog extends SessionDialogInterface {
 
      
-	final public static String TAG = "logInDialog";
-	final public static String VERB = "log in";
-	final public static String USERNAME = "username";
-	final public static String PASSWORD = "password";
-	final public static String USERNAME_MISSING = "username missing";
-	final public static String PASSWORD_INVALID_LENGTH = "password_invalid_length";
+    final public static String TAG = LogInDialog.class.getSimpleName();
 
     private static boolean is_eip_pending = false;
     
@@ -93,7 +88,7 @@ public class LogInDialog extends DialogFragment {
 					String username = username_field.getText().toString();
 					String password = password_field.getText().toString();
 					dialog.dismiss();
-					interface_with_Dashboard.authenticate(username, password);
+					interface_with_Dashboard.logIn(username, password);
 				}
 			})
 			.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@@ -120,7 +115,7 @@ public class LogInDialog extends DialogFragment {
 	 *
 	 */
 	public interface LogInDialogInterface {
-	    public void authenticate(String username, String password);
+	    public void logIn(String username, String password);
 	    public void cancelAuthedEipOn();
 	    public void signUp(String username, String password);
 	    public void cancelLoginOrSignup();
@@ -149,8 +144,8 @@ public class LogInDialog extends DialogFragment {
 
     @Override
     public void onCancel(DialogInterface dialog) {
+	super.onCancel(dialog);
 	if(is_eip_pending)
 	    interface_with_Dashboard.cancelAuthedEipOn();
-	super.onCancel(dialog);	    
     }
 }
diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
index 7b256124..7e4e95d3 100644
--- a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
@@ -14,7 +14,7 @@
  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

- package se.leap.bitmaskclient;

+package se.leap.bitmaskclient;

 

 import android.os.Bundle;

 import android.os.Handler;

diff --git a/app/src/main/java/se/leap/bitmaskclient/SessionDialogInterface.java b/app/src/main/java/se/leap/bitmaskclient/SessionDialogInterface.java
new file mode 100644
index 00000000..7b08a4d1
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/SessionDialogInterface.java
@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2013 LEAP Encryption Access Project and contributers
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package se.leap.bitmaskclient;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.DialogFragment;
+import android.content.DialogInterface;
+import android.os.Bundle;
+
+/**
+ * @author parmegv
+ */
+public abstract class SessionDialogInterface extends DialogFragment {
+    final public static String USERNAME = "username";
+    final public static String PASSWORD = "password";
+    final public static String USERNAME_MISSING = "username missing";
+    final public static String PASSWORD_INVALID_LENGTH = "password_invalid_length";
+
+    @Override
+    public void onAttach(Activity activity) { super.onAttach(activity); }
+
+    @Override
+    public void onCancel(DialogInterface dialog) { super.onCancel(dialog); }
+}
diff --git a/app/src/main/java/se/leap/bitmaskclient/SignUpDialog.java b/app/src/main/java/se/leap/bitmaskclient/SignUpDialog.java
index 120d4eec..3cb41f4f 100644
--- a/app/src/main/java/se/leap/bitmaskclient/SignUpDialog.java
+++ b/app/src/main/java/se/leap/bitmaskclient/SignUpDialog.java
@@ -42,14 +42,9 @@ import android.widget.TextView;
  * @author parmegv
  *
  */
-public class SignUpDialog extends DialogFragment {
-     
-	final public static String TAG = "signUpDialog";
-	final public static String VERB = "log in";
-	final public static String USERNAME = "username";
-	final public static String PASSWORD = "password";
-	final public static String USERNAME_MISSING = "username missing";
-	final public static String PASSWORD_INVALID_LENGTH = "password_invalid_length";
+public class SignUpDialog extends SessionDialogInterface {
+    
+    final public static String TAG = SignUpDialog.class.getSimpleName();
 
     private static boolean is_eip_pending = false;
     
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8c815786..3666b39c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -63,6 +63,7 @@
     <string name="log_out_failed_message">Didn\'t logged out.</string>
     <string name="succesful_authentication_message">Authentication succeeded.</string>
     <string name="authentication_failed_message">Authentication failed.</string>
+    <string name="registration_failed_message">Registration failed..</string>
     <string name="successful_authed_cert_downloaded_message">Your own cert has been correctly downloaded.</string>
     <string name="authed_cert_download_failed_message">Your own cert has incorrectly been downloaded.</string>
     <string name="eip_status_start_pending">Initiating connection</string>
diff --git a/app/src/release/java/se/leap/bitmaskclient/ConfigurationWizard.java b/app/src/release/java/se/leap/bitmaskclient/ConfigurationWizard.java
index b5a57234..f844989b 100644
--- a/app/src/release/java/se/leap/bitmaskclient/ConfigurationWizard.java
+++ b/app/src/release/java/se/leap/bitmaskclient/ConfigurationWizard.java
@@ -564,7 +564,7 @@ implements ProviderListFragment.Callbacks, NewProviderDialogInterface, ProviderD
 	@Override

 	public void login() {

 		Intent ask_login = new Intent();

-		ask_login.putExtra(LogInDialog.VERB, LogInDialog.VERB);

+		ask_login.putExtra(LogInDialog.TAG, LogInDialog.TAG);
 		setResult(RESULT_OK, ask_login);

 		setting_up_provider = false;

 		finish();

diff --git a/app/src/release/java/se/leap/bitmaskclient/ProviderAPI.java b/app/src/release/java/se/leap/bitmaskclient/ProviderAPI.java
index 549eee0d..189289ec 100644
--- a/app/src/release/java/se/leap/bitmaskclient/ProviderAPI.java
+++ b/app/src/release/java/se/leap/bitmaskclient/ProviderAPI.java
@@ -92,8 +92,6 @@ public class ProviderAPI extends IntentService {
     PARAMETERS = "parameters",
     RESULT_KEY = "result",
     RECEIVER_KEY = "receiver",
-    SESSION_ID_COOKIE_KEY = "session_id_cookie_key",
-    SESSION_ID_KEY = "session_id",
     ERRORS = "errors",
     UPDATE_PROGRESSBAR = "update_progressbar",
     CURRENT_PROGRESS = "current_progress",
@@ -125,6 +123,7 @@ public class ProviderAPI extends IntentService {
     private static String last_provider_main_url;
     private static boolean setting_up_provider = true;
     private static SharedPreferences preferences;
+    private static String provider_api_url;
     
     public static void stop() {
     	setting_up_provider = false;
@@ -140,6 +139,12 @@ public class ProviderAPI extends IntentService {
 	super.onCreate();
 	preferences = getSharedPreferences(Dashboard.SHARED_PREFERENCES, MODE_PRIVATE);
 	CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER));
+	if(provider_api_url == null && preferences.contains(Provider.KEY)) {
+	    try {
+		JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, ""));
+		provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION);
+	    } catch (JSONException e) {}
+	}
     }
 	
 	public static String lastProviderMainUrl() {
@@ -181,7 +186,7 @@ public class ProviderAPI extends IntentService {
 			receiver.send(SRP_AUTHENTICATION_FAILED, result);
 		    }
 		} else if (action.equalsIgnoreCase(LOG_OUT)) {
-				if(logOut(parameters)) {
+				if(logOut()) {
 					receiver.send(LOGOUT_SUCCESSFUL, Bundle.EMPTY);
 				} else {
 					receiver.send(LOGOUT_FAILED, Bundle.EMPTY);
@@ -199,40 +204,41 @@ public class ProviderAPI extends IntentService {
 	Bundle session_id_bundle = new Bundle();
 	int progress = 0;
 		
-	String username = (String) task.get(LogInDialog.USERNAME);
-	String password = (String) task.get(LogInDialog.PASSWORD);
-	String authentication_server = (String) task.get(Provider.API_URL);
+	String username = (String) task.get(SessionDialogInterface.USERNAME);
+	String password = (String) task.get(SessionDialogInterface.PASSWORD);
+	
 	if(validUserLoginData(username, password)) {
-	    session_id_bundle = register(username, password, authentication_server);
+	    session_id_bundle = register(username, password);
 	    broadcast_progress(progress++);
 	} else {
 	    if(!wellFormedPassword(password)) {
 		session_id_bundle.putBoolean(RESULT_KEY, false);
-		session_id_bundle.putString(LogInDialog.USERNAME, username);
-		session_id_bundle.putBoolean(LogInDialog.PASSWORD_INVALID_LENGTH, true);
+		session_id_bundle.putString(SessionDialogInterface.USERNAME, username);
+		session_id_bundle.putBoolean(SessionDialogInterface.PASSWORD_INVALID_LENGTH, true);
 	    }
 	    if(username.isEmpty()) {
 		session_id_bundle.putBoolean(RESULT_KEY, false);
-		session_id_bundle.putBoolean(LogInDialog.USERNAME_MISSING, true);
+		session_id_bundle.putBoolean(SessionDialogInterface.USERNAME_MISSING, true);
 	    }
 	}
 		
 	return session_id_bundle;
     }
 
-    private Bundle register(String username, String password, String server) {	
+    private Bundle register(String username, String password) {	
 	LeapSRPSession client = new LeapSRPSession(username, password);
 	byte[] salt = client.calculateNewSalt();
 	
 	BigInteger password_verifier = client.calculateV(username, password, salt);
-	JSONObject api_result = sendNewUserDataToSRPServer(server, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16));
+	
+	JSONObject api_result = sendNewUserDataToSRPServer(provider_api_url, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16));
 
 	Bundle result = new Bundle();	
 	if(api_result.has(ERRORS))
 	    result = authFailedNotification(api_result, username);
 	else {
-	    result.putString(LogInDialog.USERNAME, username);
-	    result.putString(LogInDialog.PASSWORD, password);
+	    result.putString(SessionDialogInterface.USERNAME, username);
+	    result.putString(SessionDialogInterface.PASSWORD, password);
 	    result.putBoolean(RESULT_KEY, true);
 	}
 
@@ -249,42 +255,39 @@ public class ProviderAPI extends IntentService {
 	    Bundle result = new Bundle();
 	    int progress = 0;
 		
-	    String username = (String) task.get(LogInDialog.USERNAME);
-	    String password = (String) task.get(LogInDialog.PASSWORD);
+	    String username = (String) task.get(SessionDialogInterface.USERNAME);
+	    String password = (String) task.get(SessionDialogInterface.PASSWORD);
 	    if(validUserLoginData(username, password)) {
-		
-		String server = (String) task.get(Provider.API_URL);
-
-		result = authenticate(username, password, server);
+		result = authenticate(username, password);
 		broadcast_progress(progress++);
 	    } else {
 		if(!wellFormedPassword(password)) {
 		    result.putBoolean(RESULT_KEY, false);
-		    result.putString(LogInDialog.USERNAME, username);
-		    result.putBoolean(LogInDialog.PASSWORD_INVALID_LENGTH, true);
+		    result.putString(SessionDialogInterface.USERNAME, username);
+		    result.putBoolean(SessionDialogInterface.PASSWORD_INVALID_LENGTH, true);
 		}
 		if(username.isEmpty()) {
 		    result.putBoolean(RESULT_KEY, false);
-		    result.putBoolean(LogInDialog.USERNAME_MISSING, true);
+		    result.putBoolean(SessionDialogInterface.USERNAME_MISSING, true);
 		}
 	    }
 		
 	    return result;
 	}
 
-    private Bundle authenticate(String username, String password, String server) {
+    private Bundle authenticate(String username, String password) {
 	Bundle result = new Bundle();
 	
 	LeapSRPSession client = new LeapSRPSession(username, password);
 	byte[] A = client.exponential();
 	
-	JSONObject step_result = sendAToSRPServer(server, username, new BigInteger(1, A).toString(16));
+	JSONObject step_result = sendAToSRPServer(provider_api_url, username, new BigInteger(1, A).toString(16));
 	try {
 	    String salt = step_result.getString(LeapSRPSession.SALT);
 	    byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray();
 	    byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes);
 	    if(M1 != null) {
-		step_result = sendM1ToSRPServer(server, username, M1);
+		step_result = sendM1ToSRPServer(provider_api_url, username, M1);
 		setTokenIfAvailable(step_result);
 		byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray();
 		if(client.verify(M2)) {
@@ -294,7 +297,7 @@ public class ProviderAPI extends IntentService {
 		}
 	    } else {
 		result.putBoolean(RESULT_KEY, false);
-		result.putString(LogInDialog.USERNAME, username);
+		result.putString(SessionDialogInterface.USERNAME, username);
 		result.putString(getResources().getString(R.string.user_message), getResources().getString(R.string.error_srp_math_error_user_message));
 	    }
 	} catch (JSONException e) {
@@ -325,7 +328,7 @@ public class ProviderAPI extends IntentService {
 	} catch(JSONException e) {}
 	
 	if(!username.isEmpty())
-	    user_notification_bundle.putString(LogInDialog.USERNAME, username);
+	    user_notification_bundle.putString(SessionDialogInterface.USERNAME, username);
 	user_notification_bundle.putBoolean(RESULT_KEY, false);
 
 	return user_notification_bundle;
@@ -614,6 +617,7 @@ public class ProviderAPI extends IntentService {
 
 			try {
 				JSONObject provider_json = new JSONObject(provider_dot_json_string);
+				provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION);
 				String name = provider_json.getString(Provider.NAME);
 				//TODO setProviderName(name);
 
@@ -847,12 +851,11 @@ public class ProviderAPI extends IntentService {
 	
 	/**
 	 * Logs out from the api url retrieved from the task.
-	 * @param task containing api url from which the user will log out
 	 * @return true if there were no exceptions
 	 */
-	private boolean logOut(Bundle task) {
+	private boolean logOut() {
 		try {
-			String delete_url = task.getString(Provider.API_URL) + "/logout";
+			String delete_url = provider_api_url + "/logout";
 			int progress = 0;
 
 			HttpsURLConnection urlConnection = (HttpsURLConnection)new URL(delete_url).openConnection();