Java tutorial
/* * Copyright 2014 Albert Vaca Cintora <albertvaka@gmail.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License or (at your option) version 3 or any later version * accepted by the membership of KDE e.V. (or its successor approved * by the membership of KDE e.V.), which shall act as a proxy * defined in Section 14 of version 3 of the license. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.kde.kdeconnect.Plugins.SharePlugin; import android.app.Activity; import android.app.DownloadManager; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.ClipboardManager; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Resources; import android.database.Cursor; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Build; import android.preference.PreferenceManager; import android.provider.MediaStore; import android.support.v4.app.NotificationCompat; import android.support.v4.app.TaskStackBuilder; import android.support.v4.content.ContextCompat; import android.support.v4.provider.DocumentFile; import android.util.Log; import android.widget.Toast; import org.kde.kdeconnect.Device; import org.kde.kdeconnect.Helpers.FilesHelper; import org.kde.kdeconnect.Helpers.MediaStoreHelper; import org.kde.kdeconnect.Helpers.NotificationHelper; import org.kde.kdeconnect.NetworkPackage; import org.kde.kdeconnect.Plugins.Plugin; import org.kde.kdeconnect.UserInterface.SettingsActivity; import org.kde.kdeconnect_tp.R; import java.io.File; import java.io.InputStream; import java.io.OutputStream; import java.util.ArrayList; public class SharePlugin extends Plugin { //public final static String PACKAGE_TYPE_SHARE = "kdeconnect.share"; public final static String PACKAGE_TYPE_SHARE_REQUEST = "kdeconnect.share.request"; final static boolean openUrlsDirectly = true; @Override public String getDisplayName() { return context.getResources().getString(R.string.pref_plugin_sharereceiver); } @Override public Drawable getIcon() { return ContextCompat.getDrawable(context, R.drawable.share_plugin_action); } @Override public String getDescription() { return context.getResources().getString(R.string.pref_plugin_sharereceiver_desc); } @Override public boolean hasMainActivity() { return true; } @Override public String getActionName() { return context.getString(R.string.send_files); } @Override public void startMainActivity(Activity parentActivity) { Intent intent = new Intent(parentActivity, SendFileActivity.class); intent.putExtra("deviceId", device.getDeviceId()); parentActivity.startActivity(intent); } @Override public boolean hasSettings() { return true; } @Override public boolean onPackageReceived(NetworkPackage np) { try { if (np.hasPayload()) { Log.i("SharePlugin", "hasPayload"); final InputStream input = np.getPayload(); final long fileLength = np.getPayloadSize(); final String originalFilename = np.getString("filename", Long.toString(System.currentTimeMillis())); //We need to check for already existing files only when storing in the default path. //User-defined paths use the new Storage Access Framework that already handles this. final boolean customDestination = ShareSettingsActivity.isCustomDestinationEnabled(context); final String defaultPath = ShareSettingsActivity.getDefaultDestinationDirectory().getAbsolutePath(); final String filename = customDestination ? originalFilename : FilesHelper.findNonExistingNameForNewFile(defaultPath, originalFilename); String displayName = FilesHelper.getFileNameWithoutExt(filename); final String mimeType = FilesHelper.getMimeTypeFromFile(filename); if ("*/*".equals(mimeType)) { displayName = filename; } final DocumentFile destinationFolderDocument = ShareSettingsActivity .getDestinationDirectory(context); final DocumentFile destinationDocument = destinationFolderDocument.createFile(mimeType, displayName); final OutputStream destinationOutput = context.getContentResolver() .openOutputStream(destinationDocument.getUri()); final Uri destinationUri = destinationDocument.getUri(); final int notificationId = (int) System.currentTimeMillis(); Resources res = context.getResources(); final NotificationCompat.Builder builder = new NotificationCompat.Builder(context) .setContentTitle(res.getString(R.string.incoming_file_title, device.getName())) .setContentText(res.getString(R.string.incoming_file_text, filename)) .setTicker(res.getString(R.string.incoming_file_title, device.getName())) .setSmallIcon(android.R.drawable.stat_sys_download).setAutoCancel(true).setOngoing(true) .setProgress(100, 0, true); final NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); NotificationHelper.notifyCompat(notificationManager, notificationId, builder.build()); new Thread(new Runnable() { @Override public void run() { boolean successful = true; try { byte data[] = new byte[1024]; long progress = 0, prevProgressPercentage = 0; int count; while ((count = input.read(data)) >= 0) { progress += count; destinationOutput.write(data, 0, count); if (fileLength > 0) { if (progress >= fileLength) break; long progressPercentage = (progress * 100 / fileLength); if (progressPercentage != prevProgressPercentage) { prevProgressPercentage = progressPercentage; builder.setProgress(100, (int) progressPercentage, false); NotificationHelper.notifyCompat(notificationManager, notificationId, builder.build()); } } //else Log.e("SharePlugin", "Infinite loop? :D"); } destinationOutput.flush(); } catch (Exception e) { successful = false; Log.e("SharePlugin", "Receiver thread exception"); e.printStackTrace(); } finally { try { destinationOutput.close(); } catch (Exception e) { } try { input.close(); } catch (Exception e) { } } try { Log.i("SharePlugin", "Transfer finished: " + destinationUri.getPath()); //Update the notification and allow to open the file from it Resources res = context.getResources(); String message = successful ? res.getString(R.string.received_file_title, device.getName()) : res.getString(R.string.received_file_fail_title, device.getName()); NotificationCompat.Builder builder = new NotificationCompat.Builder(context) .setContentTitle(message).setTicker(message) .setSmallIcon(android.R.drawable.stat_sys_download_done).setAutoCancel(true); if (successful) { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(destinationUri, mimeType); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); stackBuilder.addNextIntent(intent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); builder.setContentText( res.getString(R.string.received_file_text, destinationDocument.getName())) .setContentIntent(resultPendingIntent); } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); if (prefs.getBoolean("share_notification_preference", true)) { builder.setDefaults(Notification.DEFAULT_ALL); } NotificationHelper.notifyCompat(notificationManager, notificationId, builder.build()); if (successful) { if (!customDestination && Build.VERSION.SDK_INT >= 12) { Log.i("SharePlugin", "Adding to downloads"); DownloadManager manager = (DownloadManager) context .getSystemService(Context.DOWNLOAD_SERVICE); manager.addCompletedDownload(destinationUri.getLastPathSegment(), device.getName(), true, mimeType, destinationUri.getPath(), fileLength, false); } else { //Make sure it is added to the Android Gallery anyway MediaStoreHelper.indexFile(context, destinationUri); } } } catch (Exception e) { Log.e("SharePlugin", "Receiver thread exception"); e.printStackTrace(); } } }).start(); } else if (np.has("text")) { Log.i("SharePlugin", "hasText"); String text = np.getString("text"); if (Build.VERSION.SDK_INT >= 11) { ClipboardManager cm = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); cm.setText(text); } else { android.text.ClipboardManager clipboard = (android.text.ClipboardManager) context .getSystemService(Context.CLIPBOARD_SERVICE); clipboard.setText(text); } Toast.makeText(context, R.string.shareplugin_text_saved, Toast.LENGTH_LONG).show(); } else if (np.has("url")) { String url = np.getString("url"); Log.i("SharePlugin", "hasUrl: " + url); Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); browserIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); if (openUrlsDirectly) { context.startActivity(browserIntent); } else { Resources res = context.getResources(); TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); stackBuilder.addNextIntent(browserIntent); PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); Notification noti = new NotificationCompat.Builder(context) .setContentTitle(res.getString(R.string.received_url_title, device.getName())) .setContentText(res.getString(R.string.received_url_text, url)) .setContentIntent(resultPendingIntent) .setTicker(res.getString(R.string.received_url_title, device.getName())) .setSmallIcon(R.drawable.ic_notification).setAutoCancel(true) .setDefaults(Notification.DEFAULT_ALL).build(); NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); NotificationHelper.notifyCompat(notificationManager, (int) System.currentTimeMillis(), noti); } } else { Log.e("SharePlugin", "Error: Nothing attached!"); } } catch (Exception e) { Log.e("SharePlugin", "Exception"); e.printStackTrace(); } return true; } @Override public void startPreferencesActivity(SettingsActivity parentActivity) { Intent intent = new Intent(parentActivity, ShareSettingsActivity.class); intent.putExtra("plugin_display_name", getDisplayName()); intent.putExtra("plugin_key", getPluginKey()); parentActivity.startActivity(intent); } static void queuedSendUriList(Context context, final Device device, final ArrayList<Uri> uriList) { //Read all the data early, as we only have permissions to do it while the activity is alive final ArrayList<NetworkPackage> toSend = new ArrayList<>(); for (Uri uri : uriList) { toSend.add(uriToNetworkPackage(context, uri)); } //Callback that shows a progress notification final NotificationUpdateCallback notificationUpdateCallback = new NotificationUpdateCallback(context, device, toSend); //Do the sending in background new Thread(new Runnable() { @Override public void run() { //Actually send the files try { for (NetworkPackage np : toSend) { boolean success = device.sendPackageBlocking(np, notificationUpdateCallback); if (!success) { Log.e("SharePlugin", "Error sending files"); return; } } } catch (Exception e) { e.printStackTrace(); } } }).start(); } //Create the network package from the URI private static NetworkPackage uriToNetworkPackage(final Context context, final Uri uri) { try { ContentResolver cr = context.getContentResolver(); InputStream inputStream = cr.openInputStream(uri); NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_SHARE_REQUEST); long size = -1; if (uri.getScheme().equals("file")) { // file:// is a non media uri, so we cannot query the ContentProvider np.set("filename", uri.getLastPathSegment()); try { size = new File(uri.getPath()).length(); } catch (Exception e) { Log.e("SendFileActivity", "Could not obtain file size"); e.printStackTrace(); } } else { // Probably a content:// uri, so we query the Media content provider Cursor cursor = null; try { String[] proj = { MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.SIZE, MediaStore.MediaColumns.DISPLAY_NAME }; cursor = cr.query(uri, proj, null, null, null); int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA); cursor.moveToFirst(); String path = cursor.getString(column_index); np.set("filename", Uri.parse(path).getLastPathSegment()); size = new File(path).length(); } catch (Exception unused) { Log.w("SendFileActivity", "Could not resolve media to a file, trying to get info as media"); try { int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DISPLAY_NAME); cursor.moveToFirst(); String name = cursor.getString(column_index); np.set("filename", name); } catch (Exception e) { e.printStackTrace(); Log.e("SendFileActivity", "Could not obtain file name"); } try { int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.SIZE); cursor.moveToFirst(); //For some reason this size can differ from the actual file size! size = cursor.getInt(column_index); } catch (Exception e) { Log.e("SendFileActivity", "Could not obtain file size"); e.printStackTrace(); } } finally { try { cursor.close(); } catch (Exception e) { } } } np.setPayload(inputStream, size); return np; } catch (Exception e) { Log.e("SendFileActivity", "Exception sending files"); e.printStackTrace(); return null; } } @Override public String[] getSupportedPackageTypes() { return new String[] { PACKAGE_TYPE_SHARE_REQUEST }; } @Override public String[] getOutgoingPackageTypes() { return new String[] { PACKAGE_TYPE_SHARE_REQUEST }; } }