package org.fox.ttrss.util; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.net.URLConnection; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.Date; import org.fox.ttrss.OnlineActivity; import org.fox.ttrss.R; import org.fox.ttrss.offline.OfflineDownloadService; import android.app.ActivityManager; import android.app.ActivityManager.RunningServiceInfo; import android.app.IntentService; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Intent; import android.os.Environment; public class ImageCacheService extends IntentService { private final String TAG = this.getClass().getSimpleName(); public static final int NOTIFY_DOWNLOADING = 1; private static final String CACHE_PATH = "/data/org.fox.ttrss/image-cache/"; private int m_imagesDownloaded = 0; private NotificationManager m_nmgr; public ImageCacheService() { super("ImageCacheService"); } private boolean isDownloadServiceRunning() { ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE); for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) { if ("org.fox.ttrss.OfflineDownloadService".equals(service.service.getClassName())) { return true; } } return false; } @Override public void onCreate() { super.onCreate(); m_nmgr = (NotificationManager)getSystemService(NOTIFICATION_SERVICE); } public static boolean isUrlCached(String url) { String hashedUrl = md5(url); File storage = Environment.getExternalStorageDirectory(); File file = new File(storage.getAbsolutePath() + CACHE_PATH + "/" + hashedUrl + ".png"); return file.exists(); } public static String getCacheFileName(String url) { String hashedUrl = md5(url); File storage = Environment.getExternalStorageDirectory(); File file = new File(storage.getAbsolutePath() + CACHE_PATH + "/" + hashedUrl + ".png"); return file.getAbsolutePath(); } public static void cleanupCache(boolean deleteAll) { if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { File storage = Environment.getExternalStorageDirectory(); File cachePath = new File(storage.getAbsolutePath() + CACHE_PATH); long now = new Date().getTime(); if (cachePath.isDirectory()) { for (File file : cachePath.listFiles()) { if (deleteAll || now - file.lastModified() > 1000*60*60*24*7) { file.delete(); } } } } } protected static String md5(String s) { try { MessageDigest digest = java.security.MessageDigest.getInstance("MD5"); digest.update(s.getBytes()); byte messageDigest[] = digest.digest(); StringBuffer hexString = new StringBuffer(); for (int i=0; i