michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.fxa.activities;
michael@0: 
michael@0: import java.util.concurrent.Executor;
michael@0: import java.util.concurrent.Executors;
michael@0: 
michael@0: import org.mozilla.gecko.R;
michael@0: import org.mozilla.gecko.background.common.log.Logger;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountClient;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountClient10.RequestDelegate;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountClient20;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountClient20.LoginResponse;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountClientException.FxAccountClientRemoteException;
michael@0: import org.mozilla.gecko.background.fxa.FxAccountUtils;
michael@0: import org.mozilla.gecko.background.fxa.PasswordStretcher;
michael@0: import org.mozilla.gecko.fxa.FirefoxAccounts;
michael@0: import org.mozilla.gecko.fxa.FxAccountConstants;
michael@0: import org.mozilla.gecko.fxa.activities.FxAccountSetupTask.FxAccountSignInTask;
michael@0: import org.mozilla.gecko.fxa.authenticator.AndroidFxAccount;
michael@0: import org.mozilla.gecko.fxa.login.Engaged;
michael@0: import org.mozilla.gecko.fxa.login.State;
michael@0: import org.mozilla.gecko.fxa.login.State.StateLabel;
michael@0: import org.mozilla.gecko.sync.setup.activities.ActivityUtils;
michael@0: 
michael@0: import android.os.Bundle;
michael@0: import android.view.View;
michael@0: import android.view.View.OnClickListener;
michael@0: import android.widget.AutoCompleteTextView;
michael@0: import android.widget.Button;
michael@0: import android.widget.EditText;
michael@0: import android.widget.ProgressBar;
michael@0: import android.widget.TextView;
michael@0: 
michael@0: /**
michael@0:  * Activity which displays a screen for updating the local password.
michael@0:  */
michael@0: public class FxAccountUpdateCredentialsActivity extends FxAccountAbstractSetupActivity {
michael@0:   protected static final String LOG_TAG = FxAccountUpdateCredentialsActivity.class.getSimpleName();
michael@0: 
michael@0:   protected AndroidFxAccount fxAccount;
michael@0: 
michael@0:   public FxAccountUpdateCredentialsActivity() {
michael@0:     // We want to share code with the other setup activities, but this activity
michael@0:     // doesn't create a new Android Account, it modifies an existing one. If you
michael@0:     // manage to get an account, and somehow be locked out too, we'll let you
michael@0:     // update it.
michael@0:     super(CANNOT_RESUME_WHEN_NO_ACCOUNTS_EXIST);
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * {@inheritDoc}
michael@0:    */
michael@0:   @Override
michael@0:   public void onCreate(Bundle icicle) {
michael@0:     Logger.debug(LOG_TAG, "onCreate(" + icicle + ")");
michael@0: 
michael@0:     super.onCreate(icicle);
michael@0:     setContentView(R.layout.fxaccount_update_credentials);
michael@0: 
michael@0:     emailEdit = (AutoCompleteTextView) ensureFindViewById(null, R.id.email, "email edit");
michael@0:     passwordEdit = (EditText) ensureFindViewById(null, R.id.password, "password edit");
michael@0:     showPasswordButton = (Button) ensureFindViewById(null, R.id.show_password, "show password button");
michael@0:     remoteErrorTextView = (TextView) ensureFindViewById(null, R.id.remote_error, "remote error text view");
michael@0:     button = (Button) ensureFindViewById(null, R.id.button, "update credentials");
michael@0:     progressBar = (ProgressBar) ensureFindViewById(null, R.id.progress, "progress bar");
michael@0: 
michael@0:     minimumPasswordLength = 1; // Minimal restriction on passwords entered to sign in.
michael@0:     createButton();
michael@0:     addListeners();
michael@0:     updateButtonState();
michael@0:     createShowPasswordButton();
michael@0: 
michael@0:     emailEdit.setEnabled(false);
michael@0: 
michael@0:     TextView view = (TextView) findViewById(R.id.forgot_password_link);
michael@0:     ActivityUtils.linkTextView(view, R.string.fxaccount_sign_in_forgot_password, R.string.fxaccount_link_forgot_password);
michael@0:   }
michael@0: 
michael@0:   @Override
michael@0:   public void onResume() {
michael@0:     super.onResume();
michael@0:     this.fxAccount = getAndroidFxAccount();
michael@0:     if (fxAccount == null) {
michael@0:       Logger.warn(LOG_TAG, "Could not get Firefox Account.");
michael@0:       setResult(RESULT_CANCELED);
michael@0:       finish();
michael@0:       return;
michael@0:     }
michael@0:     State state = fxAccount.getState();
michael@0:     if (state.getStateLabel() != StateLabel.Separated) {
michael@0:       Logger.warn(LOG_TAG, "Cannot update credentials from Firefox Account in state: " + state.getStateLabel());
michael@0:       setResult(RESULT_CANCELED);
michael@0:       finish();
michael@0:       return;
michael@0:     }
michael@0:     emailEdit.setText(fxAccount.getEmail());
michael@0:   }
michael@0: 
michael@0:   protected class UpdateCredentialsDelegate implements RequestDelegate<LoginResponse> {
michael@0:     public final String email;
michael@0:     public final String serverURI;
michael@0:     public final PasswordStretcher passwordStretcher;
michael@0: 
michael@0:     public UpdateCredentialsDelegate(String email, PasswordStretcher passwordStretcher, String serverURI) {
michael@0:       this.email = email;
michael@0:       this.serverURI = serverURI;
michael@0:       this.passwordStretcher = passwordStretcher;
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void handleError(Exception e) {
michael@0:       showRemoteError(e, R.string.fxaccount_update_credentials_unknown_error);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void handleFailure(FxAccountClientRemoteException e) {
michael@0:       if (e.isUpgradeRequired()) {
michael@0:         Logger.error(LOG_TAG, "Got upgrade required from remote server; transitioning Firefox Account to Doghouse state.");
michael@0:         final State state = fxAccount.getState();
michael@0:         fxAccount.setState(state.makeDoghouseState());
michael@0:         // The status activity will say that the user needs to upgrade.
michael@0:         redirectToActivity(FxAccountStatusActivity.class);
michael@0:         return;
michael@0:       }
michael@0:       showRemoteError(e, R.string.fxaccount_update_credentials_unknown_error);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void handleSuccess(LoginResponse result) {
michael@0:       Logger.info(LOG_TAG, "Got success signing in.");
michael@0: 
michael@0:       if (fxAccount == null) {
michael@0:         this.handleError(new IllegalStateException("fxAccount must not be null"));
michael@0:         return;
michael@0:       }
michael@0: 
michael@0:       byte[] unwrapkB;
michael@0:       try {
michael@0:         // It is crucial that we use the email address provided by the server
michael@0:         // (rather than whatever the user entered), because the user's keys are
michael@0:         // wrapped and salted with the initial email they provided to
michael@0:         // /create/account. Of course, we want to pass through what the user
michael@0:         // entered locally as much as possible.
michael@0:         byte[] quickStretchedPW = passwordStretcher.getQuickStretchedPW(result.remoteEmail.getBytes("UTF-8"));
michael@0:         unwrapkB = FxAccountUtils.generateUnwrapBKey(quickStretchedPW);
michael@0:       } catch (Exception e) {
michael@0:         this.handleError(e);
michael@0:         return;
michael@0:       }
michael@0:       fxAccount.setState(new Engaged(email, result.uid, result.verified, unwrapkB, result.sessionToken, result.keyFetchToken));
michael@0:       fxAccount.requestSync(FirefoxAccounts.FORCE);
michael@0: 
michael@0:       // For great debugging.
michael@0:       if (FxAccountConstants.LOG_PERSONAL_INFORMATION) {
michael@0:         fxAccount.dump();
michael@0:       }
michael@0: 
michael@0:       redirectToActivity(FxAccountStatusActivity.class);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   public void updateCredentials(String email, String password) {
michael@0:     String serverURI = fxAccount.getAccountServerURI();
michael@0:     Executor executor = Executors.newSingleThreadExecutor();
michael@0:     FxAccountClient client = new FxAccountClient20(serverURI, executor);
michael@0:     PasswordStretcher passwordStretcher = makePasswordStretcher(password);
michael@0:     try {
michael@0:       hideRemoteError();
michael@0:       RequestDelegate<LoginResponse> delegate = new UpdateCredentialsDelegate(email, passwordStretcher, serverURI);
michael@0:       new FxAccountSignInTask(this, this, email, passwordStretcher, client, delegate).execute();
michael@0:     } catch (Exception e) {
michael@0:       Logger.warn(LOG_TAG, "Got exception updating credentials for account.", e);
michael@0:       showRemoteError(e, R.string.fxaccount_update_credentials_unknown_error);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   protected void createButton() {
michael@0:     button.setOnClickListener(new OnClickListener() {
michael@0:       @Override
michael@0:       public void onClick(View v) {
michael@0:         final String email = emailEdit.getText().toString();
michael@0:         final String password = passwordEdit.getText().toString();
michael@0:         updateCredentials(email, password);
michael@0:       }
michael@0:     });
michael@0:   }
michael@0: }