1 files changed, 0 insertions, 133 deletions
diff --git a/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java b/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
deleted file mode 100644
index 7728c38a..00000000
--- a/src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java
+++ /dev/null
@@ -1,133 +0,0 @@
-package eu.siacs.conversations.services;
-
-import android.Manifest;
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.os.Build;
-import android.os.PowerManager;
-import android.util.Log;
-import android.util.Pair;
-
-import org.bouncycastle.crypto.engines.AESEngine;
-import org.bouncycastle.crypto.modes.AEADBlockCipher;
-import org.bouncycastle.crypto.modes.GCMBlockCipher;
-import org.bouncycastle.crypto.params.AEADParameters;
-import org.bouncycastle.crypto.params.KeyParameter;
-
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.NoSuchAlgorithmException;
-
-import javax.crypto.Cipher;
-import javax.crypto.CipherInputStream;
-import javax.crypto.CipherOutputStream;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-import eu.siacs.conversations.Config;
-import eu.siacs.conversations.entities.DownloadableFile;
-
-public class AbstractConnectionManager {
-	protected XmppConnectionService mXmppConnectionService;
-
-	public AbstractConnectionManager(XmppConnectionService service) {
-		this.mXmppConnectionService = service;
-	}
-
-	public XmppConnectionService getXmppConnectionService() {
-		return this.mXmppConnectionService;
-	}
-
-	public boolean hasStoragePermission() {
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-			return mXmppConnectionService.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
-		} else {
-			return true;
-		}
-	}
-
-	public static Pair<InputStream,Integer> createInputStream(DownloadableFile file, boolean gcm) throws FileNotFoundException {
-		FileInputStream is;
-		int size;
-		is = new FileInputStream(file);
-		size = (int) file.getSize();
-		if (file.getKey() == null) {
-			return new Pair<InputStream,Integer>(is,size);
-		}
-		try {
-			if (gcm) {
-				AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
-				cipher.init(true, new AEADParameters(new KeyParameter(file.getKey()), 128, file.getIv()));
-				InputStream cis = new org.bouncycastle.crypto.io.CipherInputStream(is, cipher);
-				return new Pair<>(cis, cipher.getOutputSize(size));
-			} else {
-				IvParameterSpec ips = new IvParameterSpec(file.getIv());
-				Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
-				cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(file.getKey(), "AES"), ips);
-				Log.d(Config.LOGTAG, "opening encrypted input stream");
-				final int s = Config.REPORT_WRONG_FILESIZE_IN_OTR_JINGLE ? size : (size / 16 + 1) * 16;
-				return new Pair<InputStream,Integer>(new CipherInputStream(is, cipher),s);
-			}
-		} catch (InvalidKeyException e) {
-			return null;
-		} catch (NoSuchAlgorithmException e) {
-			return null;
-		} catch (NoSuchPaddingException e) {
-			return null;
-		} catch (InvalidAlgorithmParameterException e) {
-			return null;
-		}
-	}
-
-	public static OutputStream createAppendedOutputStream(DownloadableFile file) {
-		return createOutputStream(file, false, true);
-	}
-
-	public static OutputStream createOutputStream(DownloadableFile file, boolean gcm) {
-		return createOutputStream(file, gcm, false);
-	}
-
-	private static OutputStream createOutputStream(DownloadableFile file, boolean gcm, boolean append) {
-		FileOutputStream os;
-		try {
-			os = new FileOutputStream(file, append);
-			if (file.getKey() == null) {
-				return os;
-			}
-		} catch (FileNotFoundException e) {
-			return null;
-		}
-		try {
-			if (gcm) {
-				AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
-				cipher.init(false, new AEADParameters(new KeyParameter(file.getKey()), 128, file.getIv()));
-				return new org.bouncycastle.crypto.io.CipherOutputStream(os, cipher);
-			} else {
-				IvParameterSpec ips = new IvParameterSpec(file.getIv());
-				Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
-				cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(file.getKey(), "AES"), ips);
-				Log.d(Config.LOGTAG, "opening encrypted output stream");
-				return new CipherOutputStream(os, cipher);
-			}
-		} catch (InvalidKeyException e) {
-			return null;
-		} catch (NoSuchAlgorithmException e) {
-			return null;
-		} catch (NoSuchPaddingException e) {
-			return null;
-		} catch (InvalidAlgorithmParameterException e) {
-			return null;
-		}
-	}
-
-	public PowerManager.WakeLock createWakeLock(String name) {
-		PowerManager powerManager = (PowerManager) mXmppConnectionService.getSystemService(Context.POWER_SERVICE);
-		return powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,name);
-	}
-}