Android Open Source - PicSync Get Token Task

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Back to project page PicSync.

License

The source code is released under:

Apache License

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Java Source Code

package com.darrenmowat.gdcu.tasks;
/*w  w w  .  j  a  v  a 2s . com*/
import java.io.IOException;

import android.os.AsyncTask;

import com.darrenmowat.gdcu.GDCU;
import com.darrenmowat.gdcu.Keys;
import com.darrenmowat.gdcu.activity.AuthActivity;
import com.darrenmowat.gdcu.data.Preferences;
import com.darrenmowat.gdcu.security.PackageSecurity;
import com.google.android.gms.auth.GoogleAuthException;
import com.google.android.gms.auth.GoogleAuthUtil;
import com.google.android.gms.auth.GooglePlayServicesAvailabilityException;
import com.google.android.gms.auth.UserRecoverableAuthException;
import com.google.android.gms.common.ConnectionResult;

public class GetTokenTask extends AsyncTask<Void, Void, Void> {

  protected AuthActivity mActivity;

  protected String mScope;
  protected String mEmail;
  private int mRequestCode;

  public GetTokenTask(AuthActivity activity, String email, String scope, int requestCode) {
    this.mActivity = activity;
    this.mScope = scope;
    this.mEmail = email;
    this.mRequestCode = requestCode;
  }

  @Override
  protected Void doInBackground(Void... params) {
    String token = fetchToken();
    if (token == null) {
      // error has already been handled in fetchToken()
      return null;
    }
    Preferences.storeEmail(mActivity, mEmail);
    if (!GDCU.DEVEL_BUILD) {
      // Now we'll check if this package is signed correctly
      // If it aint we'll crash and log the culprit!
      //PackageSecurity.checkPackageCertificate(mActivity, "com.darrenmowat.gdcu",
      //    Keys.PACKAGE_SIGNATURE, mEmail);
    }
    mActivity.passToken(token);
    return null;
  }

  /**
   * Get a authentication token if one is not available. If the error is not
   * recoverable then it displays the error message on parent activity.
   */
  private String fetchToken() {
    try {
      String token = GoogleAuthUtil.getToken(mActivity, mEmail, mScope);
      return token;
    } catch (GooglePlayServicesAvailabilityException playEx) {
      // GooglePlayServices.apk is either old, disabled, or not present.
      mActivity.showErrorDialog(playEx.getConnectionStatusCode());
    } catch (UserRecoverableAuthException userRecoverableException) {
      // Unable to authenticate, but the user can fix this.
      // Forward the user to the appropriate activity.
      mActivity.startActivityForResult(userRecoverableException.getIntent(), mRequestCode);
    } catch (GoogleAuthException fatalException) {
      mActivity.showErrorDialog(ConnectionResult.INTERNAL_ERROR);
    } catch (IOException e) {
      mActivity.showErrorDialog(ConnectionResult.NETWORK_ERROR);
    }
    return null;
  }

}

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