private boolean unpackFile(ZipFile zip, byte[] buf, ZipEntry fileEntry, String name)
throws IOException, FileNotFoundException {
if (fileEntry == null) fileEntry = zip.getEntry(name);
if (fileEntry == null)
throw new FileNotFoundException("Can't find " + name + " in " + zip.getName());
File outFile = new File(sGREDir, name);
if (outFile.lastModified() == fileEntry.getTime() && outFile.length() == fileEntry.getSize())
return false;
File dir = outFile.getParentFile();
if (!dir.exists()) dir.mkdirs();
InputStream fileStream;
fileStream = zip.getInputStream(fileEntry);
OutputStream outStream = new FileOutputStream(outFile);
while (fileStream.available() > 0) {
int read = fileStream.read(buf, 0, buf.length);
outStream.write(buf, 0, read);
}
fileStream.close();
outStream.close();
outFile.setLastModified(fileEntry.getTime());
return true;
}
private void checkAndLaunchUpdate() {
Log.i(LOG_FILE_NAME, "Checking for an update");
int statusCode = 8; // UNEXPECTED_ERROR
File baseUpdateDir = null;
if (Build.VERSION.SDK_INT >= 8)
baseUpdateDir = getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS);
else baseUpdateDir = new File(Environment.getExternalStorageDirectory().getPath(), "download");
File updateDir = new File(new File(baseUpdateDir, "updates"), "0");
File updateFile = new File(updateDir, "update.apk");
File statusFile = new File(updateDir, "update.status");
if (!statusFile.exists() || !readUpdateStatus(statusFile).equals("pending")) return;
if (!updateFile.exists()) return;
Log.i(LOG_FILE_NAME, "Update is available!");
// Launch APK
File updateFileToRun = new File(updateDir, getPackageName() + "-update.apk");
try {
if (updateFile.renameTo(updateFileToRun)) {
String amCmd =
"/system/bin/am start -a android.intent.action.VIEW "
+ "-n com.android.packageinstaller/.PackageInstallerActivity -d file://"
+ updateFileToRun.getPath();
Log.i(LOG_FILE_NAME, amCmd);
Runtime.getRuntime().exec(amCmd);
statusCode = 0; // OK
} else {
Log.i(LOG_FILE_NAME, "Cannot rename the update file!");
statusCode = 7; // WRITE_ERROR
}
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error launching installer to update", e);
}
// Update the status file
String status = statusCode == 0 ? "succeeded\n" : "failed: " + statusCode + "\n";
OutputStream outStream;
try {
byte[] buf = status.getBytes("UTF-8");
outStream = new FileOutputStream(statusFile);
outStream.write(buf, 0, buf.length);
outStream.close();
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error writing status file", e);
}
if (statusCode == 0) System.exit(0);
}
protected Boolean doInBackground(ArrayList... params) {
download_photos.this.runOnUiThread(
new Runnable() {
public void run() {
mtext.setText(
getText(R.string.download_textview_message_1) + " " + path.toString() + ". ");
}
});
if (resume_file.exists()) {
initial_value = readProgress()[0];
} else {
initial_value = 1;
}
for (int i = initial_value - 1; i < links.size(); i++) {
// asynctask expects more than one ArrayList<String> item, but we are sending only one,
// which is params[0]
Uri imageuri = Uri.parse(params[0].get(i).toString());
URL imageurl = null;
HttpURLConnection connection = null;
total_files_to_download = links.size();
completed_downloads = i + 1;
try {
imageurl = new URL(params[0].get(i).toString());
connection = (HttpURLConnection) imageurl.openConnection();
connection.connect();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// extracts the real file name of the photo from url
path_segments = imageuri.getPathSegments();
int total_segments = path_segments.size();
file_name = path_segments.get(total_segments - 1);
path.mkdirs();
// if(i==0)
// first_image = path.toString() + "/" + file_name;
InputStream input;
OutputStream output;
try {
input = new BufferedInputStream(imageurl.openStream());
fully_qualified_file_name = new File(path, file_name);
output = new BufferedOutputStream(new FileOutputStream(fully_qualified_file_name));
byte data[] = new byte[1024];
int count;
while ((count = input.read(data)) != -1) {
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
connection.disconnect();
new folder_scanner(getApplicationContext(), fully_qualified_file_name);
publishProgress(completed_downloads, total_files_to_download);
if (this.isCancelled()) {
writeProgress(completed_downloads, total_files_to_download);
break;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// creates required folders and subfolders if they do not exist already
// boolean success = path.mkdirs();
// makes request to download photos
// DownloadManager.Request request = new DownloadManager.Request(imageuri);
// set path for downloads
// request.setDestinationInExternalPublicDir(Environment.DIRECTORY_PICTURES,sub_path);
// request.setDescription("Downloaded using Facebook Album Downloader");
// DownloadManager dm = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
// download is enqueue in download list. it returns unique id for each download
// download_id = dm.enqueue(request);
}
// returns the unique id. we are not using this id
return true;
}
