added asyns downloading

app/src/main/java/ru/vtosters/lite/downloaders/AudioDownloader.java

@@ -1,6 +1,8 @@
 package ru.vtosters.lite.downloaders;
 
 import android.os.Environment;
+import android.os.Handler;
+import android.os.Looper;
 import android.provider.MediaStore;
 import android.util.Log;
 import android.widget.Toast;
@@ -20,7 +22,7 @@ public class AudioDownloader {
             return;
         }
         Log.v("VTosters Lite", "Downloading audio " + track.D);
-        downloadAudioAsync(track, Environment.DIRECTORY_MUSIC + File.pathSeparator + "test", new Callback() {
+        downloadAudioAsync(track, Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC) + "/test", new Callback() {
             @Override
             public void onProgress(int progress) {
                 ToastUtils.a("Загружено " + progress + "%");
@@ -44,7 +46,8 @@ public class AudioDownloader {
     }
 
     private static void downloadAudioAsync(MusicTrack track, String path, Callback callback) {
-        var destTs = path + ".ts";
-        new M3UDownloader(track.D, new File(destTs), callback).execute();
+        File outDir = new File(path);
+        if (!outDir.exists()) outDir.mkdirs();
+        new M3UDownloader(track.D, outDir, callback).execute();
     }
 }

app/src/main/java/ru/vtosters/lite/music/M3UDownloader.java

@@ -1,5 +1,6 @@
 package ru.vtosters.lite.music;
 
+import android.os.StrictMode;
 import android.util.Log;
 
 import java.io.File;
@@ -12,9 +13,16 @@ import java.util.List;
 
 import javax.crypto.NoSuchPaddingException;
 
+import okhttp3.Call;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
 import ru.vtosters.lite.utils.StreamUtils;
 
-public class M3UDownloader{
+public class M3UDownloader {
+
+    private OkHttpClient mClient = new OkHttpClient();
+    private VKM3UParser mParser;
 
     private final String mURL;
     private final File mOutDir;
@@ -27,26 +35,44 @@ public class M3UDownloader{
     }
 
     public void execute() {
-        VKM3UParser parser = new VKM3UParser(mURL);
-        List<TransportStream> tses = parser.getTransportStreams();
-        mCallback.onProgress(5);
-        for(TransportStream ts : tses) {
-            String tsURL = parser.getBaseUrl() + ts.getName();
-            Log.d("M3UDownloader", "Downloading " + tsURL);
-            try {
+        var request = new Request.a()
+                .b(mURL)
+                .a();
+        mClient.a(request).a(new okhttp3.Callback() {
+            @Override
+            public void a(Call call, IOException e) {
+
+            }
+
+            @Override
+            public void a(Call call, Response response) throws IOException {
+                parse(response.a().g());
+            }
+        });
+    }
+
+    private void parse(String payload) {
+        try {
+            VKM3UParser parser = new VKM3UParser(payload);
+            List<TransportStream> tses = parser.getTransportStreams();
+            mCallback.onProgress(5);
+            for (TransportStream ts : tses) {
+                String tsURL = parser.getBaseUrl() + ts.getName();
+                Log.d("M3UDownloader", "Downloading " + tsURL);
                 InputStream is = StreamUtils.openStream(tsURL);
+                String key = StreamUtils.readAllLines(StreamUtils.openStream(ts.getKeyURL()));
                 byte[] content = TransportStream.METHOD_AES128.equals(ts.getMethod())
-                        ? StreamUtils.decodeStream(is, ts.getKeyURL())
+                        ? StreamUtils.decodeStream(is, key)
                         : StreamUtils.readAllBytes(is);
                 File tsDump = new File(mOutDir, ts.getName());
                 StreamUtils.writeToFile(tsDump, content);
                 mCallback.onSizeReceived((long) content.length * tses.size(), parser.getHeapSize());
                 mCallback.onProgress(10 + Math.round(80.0f * tses.indexOf(ts) / tses.size()));
-            } catch (IOException | NoSuchPaddingException | NoSuchAlgorithmException | InvalidAlgorithmParameterException | InvalidKeyException e) {
-                e.printStackTrace();
-                mCallback.onFailure();
-                return;
             }
+        }  catch (IOException | NoSuchPaddingException | NoSuchAlgorithmException | InvalidAlgorithmParameterException | InvalidKeyException e) {
+            e.printStackTrace();
+            mCallback.onFailure();
+            return;
         }
         mCallback.onSuccess();
     }

app/src/main/java/ru/vtosters/lite/music/VKM3UParser.java

@@ -1,5 +1,7 @@
 package ru.vtosters.lite.music;
 
+import android.util.Log;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;

app/src/main/java/ru/vtosters/lite/utils/StreamUtils.java

@@ -28,10 +28,9 @@ public class StreamUtils {
         return readAllBytes(cip);
     }
 
-    public static Cipher getCipher(String keyURL) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeyException, IOException {
-        String key = new String(readAllBytes(openStream(keyURL)));
+    public static Cipher getCipher(String key) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeyException, IOException {
         Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
-        Key keySpec = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), "AES");
+        Key keySpec = new SecretKeySpec(key.getBytes(), "AES");
         // bypassing ecb
         byte[] iv = new byte[16];
         Arrays.fill(iv, (byte) 0x0);
@@ -59,6 +58,7 @@ public class StreamUtils {
     }
 
     public static void writeToFile(File file, byte[] content) throws IOException {
+        if (!file.exists()) file.createNewFile();
         FileOutputStream fos = new FileOutputStream(file);
         fos.write(content);
     }