Android Open Source - coinbase-bitmonet-sdk O Auth Helper Utils

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License

The source code is released under:

Copyright (c) 2014, BitMonet and Coinbase Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditio...

Java Source Code

package com.bitmonet.utilities;
/*from  ww w.  j a  va2s . c  om*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.SystemClock;

import com.bitmonet.Bitmonet;
import com.bitmonet.BitmonetOAuthStatusListener;
import com.bitmonet.Constants;

public class OAuthHelperUtils {

  private static volatile OAuthHelperUtils sInstance = null;
  private AlarmManager am = null;
  private PendingIntent pi = null;

  private OAuthHelperUtils() {

  }

  public static OAuthHelperUtils getInstance() {
    if (sInstance == null) {
      synchronized (OAuthHelperUtils.class) {
        if (sInstance == null) {
          sInstance = new OAuthHelperUtils();
        }
      }
    }
    return sInstance;
  }

  @SuppressWarnings("unused")
  private void setupRefreshAccessTokenListener() {
    Context context = Bitmonet.getBitmonetContext();
    // Convert the time to ms
    int refreshTime = UserProfileSettings.getInstance().retrieveRefreshTime() * 1000;
    refreshTime = refreshTime - Constants.REFRESH_TIME_DELTA;

    context.registerReceiver(refreshTokenReceiver, new IntentFilter(Constants.ACCESS_TOKEN_RECV));
    pi = PendingIntent.getBroadcast(context, 0, new Intent(Constants.ACCESS_TOKEN_RECV), 0);
    am = (AlarmManager) (context.getSystemService(Context.ALARM_SERVICE));
    am.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.currentThreadTimeMillis() + refreshTime,
        refreshTime, pi);
  }

  private void sendOAuthResponse(final Context context, final boolean status) {
    Handler applicationHandler = new Handler(context.getMainLooper());
    Runnable applicationRunnable = new Runnable() {
      @Override
      public void run() {
        ((BitmonetOAuthStatusListener) context).walletOAuthStatusListener(status);
      }
    };
    applicationHandler.post(applicationRunnable);
  }

  private BroadcastReceiver refreshTokenReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context c, Intent i) {
      new Thread(new Runnable() {
        @Override
        public void run() {
          UserProfileSettings.getInstance().saveCoinbaseOAuthStatus(false);
        }
      }).start();

    }
  };

  private void extractOAuthParamatersFromJSON(HttpResponse response) throws JSONException, IOException {

    BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
    String json = reader.readLine();

    // Extract access token, refresh token and the refresh time
    JSONObject jObject = new JSONObject(json);
    try {
      UserProfileSettings.getInstance().saveAccessToken(jObject.getString(Constants.ACCESS_TOKEN));
      UserProfileSettings.getInstance().saveRefreshToken(jObject.getString(Constants.REFRESH_TOKEN));
      UserProfileSettings.getInstance().saveRefreshTime(jObject.getInt(Constants.ACCESS_TOKEN_EXPIRY_TIME));
    } catch (JSONException e) {
      e.printStackTrace();
    }
  }

  public boolean shouldRequestNewAccessToken() {
    long currentTimestamp = System.currentTimeMillis();
    long lastSavedTimestamp = UserProfileSettings.getInstance().retrieveCoinbaseAccessTokenTimestamp();
    long delta = UserProfileSettings.getInstance().retrieveRefreshTime() * 1000;

    if ((currentTimestamp - lastSavedTimestamp) >= delta) {
      return true;
    } else {
      return false;
    }
  }

  public void refreshAccessToken() {
    String path = URLUtils.contstructRefreshTokenURL();
    HttpResponse response = HTTPUtils.makeHttpPostRequest(path);
    try {
      extractOAuthParamatersFromJSON(response);
    } catch (JSONException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  public void requestAccesTokenFromCoinbase(final Context context, final String code) {

    if (code == null) {
      return;
    }

    new Thread(new Runnable() {
      @Override
      public void run() {
        String path = URLUtils.constructAuthRequestTokenURL(code);
        HttpResponse response = HTTPUtils.makeHttpPostRequest(path);
        if (response != null && response.getStatusLine().getStatusCode() == 200) {
          try {
            extractOAuthParamatersFromJSON(response);
            UserProfileSettings.getInstance().saveCoinbaseOAuthStatus(true);
            UserProfileSettings.getInstance().saveCoinbaseAccessTokenTimestamp(System.currentTimeMillis());
            sendOAuthResponse(context, true);
            return;
          } catch (JSONException e) {
            e.printStackTrace();
          } catch (IOException e) {
            e.printStackTrace();
          }
        }
        sendOAuthResponse(context, false);
        UserProfileSettings.getInstance().saveCoinbaseOAuthStatus(false);
      }
    }).start();
  }
}

Java Source Code List

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