2014-10-22 16:38:44 +00:00
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package eu.siacs.conversations.services;
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2015-12-06 17:23:59 +00:00
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import android.Manifest;
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2015-08-10 17:48:36 +00:00
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import android.content.Context;
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2015-12-06 17:23:59 +00:00
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import android.content.pm.PackageManager;
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import android.os.Build;
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2015-08-10 17:48:36 +00:00
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import android.os.PowerManager;
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2017-01-12 15:02:09 +00:00
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import android.os.SystemClock;
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2015-07-31 23:19:16 +00:00
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import android.util.Pair;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.InputStream;
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import java.io.OutputStream;
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2017-01-12 15:02:09 +00:00
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import java.util.concurrent.atomic.AtomicLong;
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2015-07-31 23:19:16 +00:00
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import javax.crypto.Cipher;
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import javax.crypto.CipherInputStream;
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import javax.crypto.CipherOutputStream;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import eu.siacs.conversations.Config;
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2017-06-30 19:22:35 +00:00
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import eu.siacs.conversations.R;
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2015-07-31 23:19:16 +00:00
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import eu.siacs.conversations.entities.DownloadableFile;
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2018-09-17 15:47:51 +00:00
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import eu.siacs.conversations.utils.Compatibility;
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2015-07-31 23:19:16 +00:00
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2014-10-22 16:38:44 +00:00
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public class AbstractConnectionManager {
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2018-09-17 15:47:51 +00:00
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private static final String KEYTYPE = "AES";
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private static final String CIPHERMODE = "AES/GCM/NoPadding";
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private static final String PROVIDER = "BC";
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private static final int UI_REFRESH_THRESHOLD = 250;
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private static final AtomicLong LAST_UI_UPDATE_CALL = new AtomicLong(0);
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protected XmppConnectionService mXmppConnectionService;
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public AbstractConnectionManager(XmppConnectionService service) {
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this.mXmppConnectionService = service;
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}
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2018-10-03 10:50:54 +00:00
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public static Pair<InputStream, Integer> createInputStream(DownloadableFile file) throws FileNotFoundException {
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2018-09-17 15:47:51 +00:00
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FileInputStream is;
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int size;
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is = new FileInputStream(file);
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size = (int) file.getSize();
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if (file.getKey() == null) {
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return new Pair<>(is, size);
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}
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try {
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2018-10-03 10:50:54 +00:00
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Cipher cipher = Cipher.getInstance(CIPHERMODE);
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SecretKeySpec keySpec = new SecretKeySpec(file.getKey(), KEYTYPE);
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IvParameterSpec ivSpec = new IvParameterSpec(file.getIv());
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cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
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return new Pair<>(new CipherInputStream(is, cipher), cipher.getOutputSize(size));
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2018-09-17 15:47:51 +00:00
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} catch (Exception e) {
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throw new AssertionError(e);
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}
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}
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public static OutputStream createAppendedOutputStream(DownloadableFile file) {
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2018-09-30 11:48:11 +00:00
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return createOutputStream(file, true);
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2018-09-17 15:47:51 +00:00
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}
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2018-09-30 11:48:11 +00:00
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public static OutputStream createOutputStream(DownloadableFile file) {
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return createOutputStream(file, false);
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2018-09-17 15:47:51 +00:00
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}
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2018-09-30 11:48:11 +00:00
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private static OutputStream createOutputStream(DownloadableFile file, boolean append) {
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2018-09-17 15:47:51 +00:00
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FileOutputStream os;
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try {
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os = new FileOutputStream(file, append);
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if (file.getKey() == null) {
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return os;
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}
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} catch (FileNotFoundException e) {
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return null;
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}
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try {
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2018-09-30 11:48:11 +00:00
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Cipher cipher = Cipher.getInstance(CIPHERMODE);
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SecretKeySpec keySpec = new SecretKeySpec(file.getKey(), KEYTYPE);
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IvParameterSpec ivSpec = new IvParameterSpec(file.getIv());
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cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
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return new CipherOutputStream(os, cipher);
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2018-09-17 15:47:51 +00:00
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} catch (Exception e) {
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2018-09-30 11:48:11 +00:00
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return null;
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2018-09-17 15:47:51 +00:00
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}
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}
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public XmppConnectionService getXmppConnectionService() {
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return this.mXmppConnectionService;
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}
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public long getAutoAcceptFileSize() {
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return this.mXmppConnectionService.getLongPreference("auto_accept_file_size", R.integer.auto_accept_filesize);
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}
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public boolean hasStoragePermission() {
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2018-09-17 19:24:25 +00:00
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return Compatibility.hasStoragePermission(mXmppConnectionService);
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2018-09-17 15:47:51 +00:00
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}
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public void updateConversationUi(boolean force) {
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synchronized (LAST_UI_UPDATE_CALL) {
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if (force || SystemClock.elapsedRealtime() - LAST_UI_UPDATE_CALL.get() >= UI_REFRESH_THRESHOLD) {
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LAST_UI_UPDATE_CALL.set(SystemClock.elapsedRealtime());
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mXmppConnectionService.updateConversationUi();
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}
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}
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}
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public PowerManager.WakeLock createWakeLock(String name) {
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PowerManager powerManager = (PowerManager) mXmppConnectionService.getSystemService(Context.POWER_SERVICE);
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return powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, name);
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}
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2014-10-22 16:38:44 +00:00
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}
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