long-term downloads resume

* recovery infrastructure
* bump serialVersionUID of DownloadMission
* misc cleanup in DownloadMission.java
* remove unused/redundant from strings.xml

app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java

@@ -68,6 +68,7 @@ import java.util.Locale;
 import icepick.Icepick;
 import icepick.State;
 import io.reactivex.disposables.CompositeDisposable;
+import us.shandian.giga.get.MissionRecoveryInfo;
 import us.shandian.giga.io.StoredDirectoryHelper;
 import us.shandian.giga.io.StoredFileHelper;
 import us.shandian.giga.postprocessing.Postprocessing;
@@ -762,12 +763,13 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         }
 
         Stream selectedStream;
+        Stream secondaryStream = null;
         char kind;
         int threads = threadsSeekBar.getProgress() + 1;
         String[] urls;
+        MissionRecoveryInfo[] recoveryInfo;
         String psName = null;
         String[] psArgs = null;
-        String secondaryStreamUrl = null;
         long nearLength = 0;
 
         // more download logic: select muxer, subtitle converter, etc.
@@ -786,12 +788,12 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
                 kind = 'v';
                 selectedStream = videoStreamsAdapter.getItem(selectedVideoIndex);
 
-                SecondaryStreamHelper<AudioStream> secondaryStream = videoStreamsAdapter
+                SecondaryStreamHelper<AudioStream> secondary = videoStreamsAdapter
                         .getAllSecondary()
                         .get(wrappedVideoStreams.getStreamsList().indexOf(selectedStream));
 
-                if (secondaryStream != null) {
+                if (secondary != null) {
-                    secondaryStreamUrl = secondaryStream.getStream().getUrl();
+                    secondaryStream = secondary.getStream();
 
                     if (selectedStream.getFormat() == MediaFormat.MPEG_4)
                         psName = Postprocessing.ALGORITHM_MP4_FROM_DASH_MUXER;
@@ -803,8 +805,8 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
 
                     // set nearLength, only, if both sizes are fetched or known. This probably
                     // does not work on slow networks but is later updated in the downloader
-                    if (secondaryStream.getSizeInBytes() > 0 && videoSize > 0) {
+                    if (secondary.getSizeInBytes() > 0 && videoSize > 0) {
-                        nearLength = secondaryStream.getSizeInBytes() + videoSize;
+                        nearLength = secondary.getSizeInBytes() + videoSize;
                     }
                 }
                 break;
@@ -826,13 +828,25 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
                 return;
         }
 
-        if (secondaryStreamUrl == null) {
+        if (secondaryStream == null) {
-            urls = new String[]{selectedStream.getUrl()};
+            urls = new String[]{
+                    selectedStream.getUrl()
+            };
+            recoveryInfo = new MissionRecoveryInfo[]{
+                    new MissionRecoveryInfo(selectedStream)
+            };
         } else {
-            urls = new String[]{selectedStream.getUrl(), secondaryStreamUrl};
+            urls = new String[]{
+                    selectedStream.getUrl(), secondaryStream.getUrl()
+            };
+            recoveryInfo = new MissionRecoveryInfo[]{
+                    new MissionRecoveryInfo(selectedStream), new MissionRecoveryInfo(secondaryStream)
+            };
         }
 
-        DownloadManagerService.startMission(context, urls, storage, kind, threads, currentInfo.getUrl(), psName, psArgs, nearLength);
+        DownloadManagerService.startMission(
+                context, urls, storage, kind, threads, currentInfo.getUrl(), psName, psArgs, nearLength, recoveryInfo
+        );
 
         dismiss();
     }

app/src/main/java/us/shandian/giga/get/DownloadInitializer.java

@@ -1,6 +1,7 @@
 package us.shandian.giga.get;
 
 import androidx.annotation.NonNull;
+import android.text.TextUtils;
 import android.util.Log;
 
 import org.schabi.newpipe.streams.io.SharpStream;
@@ -151,6 +152,20 @@ public class DownloadInitializer extends Thread {
 
                 if (!mMission.running || Thread.interrupted()) return;
 
+                if (!mMission.unknownLength && mMission.recoveryInfo != null) {
+                    String entityTag = mConn.getHeaderField("ETAG");
+                    String lastModified = mConn.getHeaderField("Last-Modified");
+                    MissionRecoveryInfo recovery = mMission.recoveryInfo[mMission.current];
+
+                    if (!TextUtils.isEmpty(entityTag)) {
+                        recovery.validateCondition = entityTag;
+                    } else if (!TextUtils.isEmpty(lastModified)) {
+                        recovery.validateCondition = lastModified;// Note: this is less precise
+                    } else {
+                        recovery.validateCondition = null;
+                    }
+                }
+
                 mMission.running = false;
                 break;
             } catch (InterruptedIOException | ClosedByInterruptException e) {

app/src/main/java/us/shandian/giga/get/DownloadMission.java

@@ -27,7 +27,7 @@ import us.shandian.giga.util.Utility;
 import static org.schabi.newpipe.BuildConfig.DEBUG;
 
 public class DownloadMission extends Mission {
-    private static final long serialVersionUID = 5L;// last bump: 30 june 2019
+    private static final long serialVersionUID = 6L;// last bump: 28 september 2019
 
     static final int BUFFER_SIZE = 64 * 1024;
     static final int BLOCK_SIZE = 512 * 1024;
@@ -51,8 +51,9 @@ public class DownloadMission extends Mission {
     public static final int ERROR_INSUFFICIENT_STORAGE = 1010;
     public static final int ERROR_PROGRESS_LOST = 1011;
     public static final int ERROR_TIMEOUT = 1012;
+    public static final int ERROR_RESOURCE_GONE = 1013;
     public static final int ERROR_HTTP_NO_CONTENT = 204;
-    public static final int ERROR_HTTP_UNSUPPORTED_RANGE = 206;
+    static final int ERROR_HTTP_FORBIDDEN = 403;
 
     /**
      * The urls of the file to download
@@ -125,6 +126,11 @@ public class DownloadMission extends Mission {
      */
     public int threadCount = 3;
 
+    /**
+     * information required to recover a download
+     */
+    public MissionRecoveryInfo[] recoveryInfo;
+
     private transient int finishCount;
     public transient boolean running;
     public boolean enqueued;
@@ -132,7 +138,6 @@ public class DownloadMission extends Mission {
     public int errCode = ERROR_NOTHING;
     public Exception errObject = null;
 
-    public transient boolean recovered;
     public transient Handler mHandler;
     private transient boolean mWritingToFile;
     private transient boolean[] blockAcquired;
@@ -197,9 +202,9 @@ public class DownloadMission extends Mission {
     }
 
     /**
-     * Open connection
+     * Opens a connection
      *
-     * @param threadId   id of the calling thread, used only for debug
+     * @param threadId   id of the calling thread, used only for debugging
      * @param rangeStart range start
      * @param rangeEnd   range end
      * @return a {@link java.net.URLConnection URLConnection} linking to the URL.
@@ -251,7 +256,7 @@ public class DownloadMission extends Mission {
             case 204:
             case 205:
             case 207:
-                throw new HttpError(conn.getResponseCode());
+                throw new HttpError(statusCode);
             case 416:
                 return;// let the download thread handle this error
             default:
@@ -270,10 +275,6 @@ public class DownloadMission extends Mission {
     synchronized void notifyProgress(long deltaLen) {
         if (!running) return;
 
-        if (recovered) {
-            recovered = false;
-        }
-
         if (unknownLength) {
             length += deltaLen;// Update length before proceeding
         }
@@ -344,7 +345,6 @@ public class DownloadMission extends Mission {
 
         if (running) {
             running = false;
-            recovered = true;
             if (threads != null) selfPause();
         }
     }
@@ -409,12 +409,13 @@ public class DownloadMission extends Mission {
      * Start downloading with multiple threads.
      */
     public void start() {
-        if (running || isFinished()) return;
+        if (running || isFinished() || urls.length < 1) return;
 
         // ensure that the previous state is completely paused.
-        joinForThread(init);
+        int maxWait = 10000;// 10 seconds
+        joinForThread(init, maxWait);
         if (threads != null) {
-            for (Thread thread : threads) joinForThread(thread);
+            for (Thread thread : threads) joinForThread(thread, maxWait);
             threads = null;
         }
 
@@ -431,6 +432,11 @@ public class DownloadMission extends Mission {
             return;
         }
 
+        if (urls[current] == null) {
+            doRecover(null);
+            return;
+        }
+
         if (blocks == null) {
             initializer();
             return;
@@ -478,7 +484,6 @@ public class DownloadMission extends Mission {
         }
 
         running = false;
-        recovered = true;
 
         if (init != null && init.isAlive()) {
             // NOTE: if start() method is running ¡will no have effect!
@@ -563,7 +568,7 @@ public class DownloadMission extends Mission {
      * Write this {@link DownloadMission} to the meta file asynchronously
      * if no thread is already running.
      */
-    private void writeThisToFile() {
+    void writeThisToFile() {
         synchronized (LOCK) {
             if (deleted) return;
             Utility.writeToFile(metadata, DownloadMission.this);
@@ -667,6 +672,7 @@ public class DownloadMission extends Mission {
      * @return {@code true} is this mission its "healthy", otherwise, {@code false}
      */
     public boolean isCorrupt() {
+        if (urls.length < 1) return false;
         return (isPsFailed() || errCode == ERROR_POSTPROCESSING_HOLD) || isFinished();
     }
 
@@ -710,6 +716,48 @@ public class DownloadMission extends Mission {
         return true;
     }
 
+    /**
+     * Attempts to recover the download
+     *
+     * @param fromError exception which require update the url from the source
+     */
+    void doRecover(Exception fromError) {
+        Log.i(TAG, "Attempting to recover the mission: " + storage.getName());
+
+        if (recoveryInfo == null) {
+            if (fromError == null)
+                notifyError(ERROR_RESOURCE_GONE, null);
+            else
+                notifyError(fromError);
+
+            urls = new String[0];// mark this mission as dead
+            return;
+        }
+
+        if (threads != null) {
+            for (Thread thread : threads) {
+                if (thread == Thread.currentThread()) continue;
+                thread.interrupt();
+                joinForThread(thread, 0);
+            }
+        }
+
+        // set the current download url to null in case if the recovery
+        // process is canceled. Next time start() method is called the
+        // recovery will be executed, saving time
+        urls[current] = null;
+
+        if (recoveryInfo[current].attempts >= maxRetry) {
+            recoveryInfo[current].attempts = 0;
+            notifyError(fromError);
+            return;
+        }
+
+        threads = new Thread[]{
+                runAsync(DownloadMissionRecover.mID, new DownloadMissionRecover(this, fromError))
+        };
+    }
+
     private boolean deleteThisFromFile() {
         synchronized (LOCK) {
             return metadata.delete();
@@ -749,7 +797,13 @@ public class DownloadMission extends Mission {
         return who;
     }
 
-    private void joinForThread(Thread thread) {
+    /**
+     * Waits at most {@code millis} milliseconds for the thread to die
+     *
+     * @param thread the desired thread
+     * @param millis the time to wait in milliseconds
+     */
+    private void joinForThread(Thread thread, int millis) {
         if (thread == null || !thread.isAlive()) return;
         if (thread == Thread.currentThread()) return;
 
@@ -764,7 +818,7 @@ public class DownloadMission extends Mission {
         //      start() method called quickly after pause()
 
         try {
-            thread.join(10000);
+            thread.join(millis);
         } catch (InterruptedException e) {
             Log.d(TAG, "timeout on join : " + thread.getName());
             throw new RuntimeException("A thread is still running:\n" + thread.getName());
@@ -785,9 +839,9 @@ public class DownloadMission extends Mission {
         }
     }
 
-    static class Block {
+    public static class Block {
-        int position;
+        public int position;
-        int done;
+        public int done;
     }
 
     private static class Lock implements Serializable {

app/src/main/java/us/shandian/giga/get/DownloadMissionRecover.java

@@ -0,0 +1,222 @@
+package us.shandian.giga.get;
+
+import android.util.Log;
+
+import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.stream.AudioStream;
+import org.schabi.newpipe.extractor.stream.StreamExtractor;
+import org.schabi.newpipe.extractor.stream.SubtitlesStream;
+import org.schabi.newpipe.extractor.stream.VideoStream;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.nio.channels.ClosedByInterruptException;
+import java.util.List;
+
+import static us.shandian.giga.get.DownloadMission.ERROR_RESOURCE_GONE;
+
+public class DownloadMissionRecover extends Thread {
+    private static final String TAG = "DownloadMissionRecover";
+    static final int mID = -3;
+
+    private final DownloadMission mMission;
+    private final MissionRecoveryInfo mRecovery;
+    private final Exception mFromError;
+    private HttpURLConnection mConn;
+
+    DownloadMissionRecover(DownloadMission mission, Exception originError) {
+        mMission = mission;
+        mFromError = originError;
+        mRecovery = mission.recoveryInfo[mission.current];
+    }
+
+    @Override
+    public void run() {
+        if (mMission.source == null) {
+            mMission.notifyError(mFromError);
+            return;
+        }
+
+        try {
+            /*if (mMission.source.startsWith(MissionRecoveryInfo.DIRECT_SOURCE)) {
+                resolve(mMission.source.substring(MissionRecoveryInfo.DIRECT_SOURCE.length()));
+                return;
+            }*/
+
+            StreamingService svr = NewPipe.getServiceByUrl(mMission.source);
+
+            if (svr == null) {
+                throw new RuntimeException("Unknown source service");
+            }
+
+            StreamExtractor extractor = svr.getStreamExtractor(mMission.source);
+            extractor.fetchPage();
+
+            if (!mMission.running || super.isInterrupted()) return;
+
+            String url = null;
+
+            switch (mMission.kind) {
+                case 'a':
+                    for (AudioStream audio : extractor.getAudioStreams()) {
+                        if (audio.average_bitrate == mRecovery.desiredBitrate && audio.getFormat() == mRecovery.format) {
+                            url = audio.getUrl();
+                            break;
+                        }
+                    }
+                    break;
+                case 'v':
+                    List<VideoStream> videoStreams;
+                    if (mRecovery.desired2)
+                        videoStreams = extractor.getVideoOnlyStreams();
+                    else
+                        videoStreams = extractor.getVideoStreams();
+                    for (VideoStream video : videoStreams) {
+                        if (video.resolution.equals(mRecovery.desired) && video.getFormat() == mRecovery.format) {
+                            url = video.getUrl();
+                            break;
+                        }
+                    }
+                    break;
+                case 's':
+                    for (SubtitlesStream subtitles : extractor.getSubtitles(mRecovery.format)) {
+                        String tag = subtitles.getLanguageTag();
+                        if (tag.equals(mRecovery.desired) && subtitles.isAutoGenerated() == mRecovery.desired2) {
+                            url = subtitles.getURL();
+                            break;
+                        }
+                    }
+                    break;
+                default:
+                    throw new RuntimeException("Unknown stream type");
+            }
+
+            resolve(url);
+        } catch (Exception e) {
+            if (!mMission.running || e instanceof ClosedByInterruptException) return;
+            mRecovery.attempts++;
+            mMission.notifyError(e);
+        }
+    }
+
+    private void resolve(String url) throws IOException, DownloadMission.HttpError {
+        if (mRecovery.validateCondition == null) {
+            Log.w(TAG, "validation condition not defined, the resource can be stale");
+        }
+
+        if (mMission.unknownLength || mRecovery.validateCondition == null) {
+            recover(url, false);
+            return;
+        }
+
+        ///////////////////////////////////////////////////////////////////////
+        ////// Validate the http resource doing a range request
+        /////////////////////
+        try {
+            mConn = mMission.openConnection(url, mID, mMission.length - 10, mMission.length);
+            mConn.setRequestProperty("If-Range", mRecovery.validateCondition);
+            mMission.establishConnection(mID, mConn);
+
+            int code = mConn.getResponseCode();
+
+            switch (code) {
+                case 200:
+                case 413:
+                    // stale
+                    recover(url, true);
+                    return;
+                case 206:
+                    // in case of validation using the Last-Modified date, check the resource length
+                    long[] contentRange = parseContentRange(mConn.getHeaderField("Content-Range"));
+                    boolean lengthMismatch = contentRange[2] != -1 && contentRange[2] != mMission.length;
+
+                    recover(url, lengthMismatch);
+                    return;
+            }
+
+            throw new DownloadMission.HttpError(code);
+        } catch (Exception e) {
+            if (!mMission.running || e instanceof ClosedByInterruptException) return;
+            throw e;
+        } finally {
+            this.interrupt();
+        }
+    }
+
+    private void recover(String url, boolean stale) {
+        Log.i(TAG,
+                String.format("download recovered  name=%s  isStale=%s  url=%s", mMission.storage.getName(), stale, url)
+        );
+
+        if (url == null) {
+            mMission.notifyError(ERROR_RESOURCE_GONE, null);
+            return;
+        }
+
+        mMission.urls[mMission.current] = url;
+        mRecovery.attempts = 0;
+
+        if (stale) {
+            mMission.resetState(false, false, DownloadMission.ERROR_NOTHING);
+        }
+
+        mMission.writeThisToFile();
+
+        if (!mMission.running || super.isInterrupted()) return;
+
+        mMission.running = false;
+        mMission.start();
+    }
+
+    private long[] parseContentRange(String value) {
+        long[] range = new long[3];
+
+        if (value == null) {
+            // this never should happen
+            return range;
+        }
+
+        try {
+            value = value.trim();
+
+            if (!value.startsWith("bytes")) {
+                return range;// unknown range type
+            }
+
+            int space = value.lastIndexOf(' ') + 1;
+            int dash = value.indexOf('-', space) + 1;
+            int bar = value.indexOf('/', dash);
+
+            // start
+            range[0] = Long.parseLong(value.substring(space, dash - 1));
+
+            // end
+            range[1] = Long.parseLong(value.substring(dash, bar));
+
+            // resource length
+            value = value.substring(bar + 1);
+            if (value.equals("*")) {
+                range[2] = -1;// unknown length received from the server but should be valid
+            } else {
+                range[2] = Long.parseLong(value);
+            }
+        } catch (Exception e) {
+            // nothing to do
+        }
+
+        return range;
+    }
+
+    @Override
+    public void interrupt() {
+        super.interrupt();
+        if (mConn != null) {
+            try {
+                mConn.disconnect();
+            } catch (Exception e) {
+                // nothing to do
+            }
+        }
+    }
+}

app/src/main/java/us/shandian/giga/get/DownloadRunnable.java

@@ -10,8 +10,10 @@ import java.net.HttpURLConnection;
 import java.nio.channels.ClosedByInterruptException;
 
 import us.shandian.giga.get.DownloadMission.Block;
+import us.shandian.giga.get.DownloadMission.HttpError;
 
 import static org.schabi.newpipe.BuildConfig.DEBUG;
+import static us.shandian.giga.get.DownloadMission.ERROR_HTTP_FORBIDDEN;
 
 
 /**
@@ -19,7 +21,7 @@ import static org.schabi.newpipe.BuildConfig.DEBUG;
  * an error occurs or the process is stopped.
  */
 public class DownloadRunnable extends Thread {
-    private static final String TAG = DownloadRunnable.class.getSimpleName();
+    private static final String TAG = "DownloadRunnable";
 
     private final DownloadMission mMission;
     private final int mId;
@@ -41,13 +43,7 @@ public class DownloadRunnable extends Thread {
     public void run() {
         boolean retry = false;
         Block block = null;
-
         int retryCount = 0;
-
-        if (DEBUG) {
-            Log.d(TAG, mId + ":recovered: " + mMission.recovered);
-        }
-
         SharpStream f;
 
         try {
@@ -133,6 +129,17 @@ public class DownloadRunnable extends Thread {
             } catch (Exception e) {
                 if (!mMission.running || e instanceof ClosedByInterruptException) break;
 
+                if (e instanceof HttpError && ((HttpError) e).statusCode == ERROR_HTTP_FORBIDDEN) {
+                    // for youtube streams. The url has expired, recover
+                    f.close();
+
+                    if (mId == 1) {
+                        // only the first thread will execute the recovery procedure
+                        mMission.doRecover(e);
+                    }
+                    return;
+                }
+
                 if (retryCount++ >= mMission.maxRetry) {
                     mMission.notifyError(e);
                     break;
@@ -144,11 +151,7 @@ public class DownloadRunnable extends Thread {
             }
         }
 
-        try {
         f.close();
-        } catch (Exception err) {
-            // ¿ejected media storage?  ¿file deleted?  ¿storage ran out of space?
-        }
 
         if (DEBUG) {
             Log.d(TAG, "thread " + mId + " exited from main download loop");

app/src/main/java/us/shandian/giga/get/DownloadRunnableFallback.java

@@ -10,9 +10,11 @@ import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.nio.channels.ClosedByInterruptException;
 
+import us.shandian.giga.get.DownloadMission.HttpError;
 import us.shandian.giga.util.Utility;
 
 import static org.schabi.newpipe.BuildConfig.DEBUG;
+import static us.shandian.giga.get.DownloadMission.ERROR_HTTP_FORBIDDEN;
 
 /**
  * Single-threaded fallback mode
@@ -85,7 +87,7 @@ public class DownloadRunnableFallback extends Thread {
 
             mIs = mConn.getInputStream();
 
-            byte[] buf = new byte[64 * 1024];
+            byte[] buf = new byte[DownloadMission.BUFFER_SIZE];
             int len = 0;
 
             while (mMission.running && (len = mIs.read(buf, 0, buf.length)) != -1) {
@@ -103,6 +105,13 @@ public class DownloadRunnableFallback extends Thread {
 
             if (!mMission.running || e instanceof ClosedByInterruptException) return;
 
+            if (e instanceof HttpError && ((HttpError) e).statusCode == ERROR_HTTP_FORBIDDEN) {
+                // for youtube streams. The url has expired, recover
+                mMission.doRecover(e);
+                dispose();
+                return;
+            }
+
             if (mRetryCount++ >= mMission.maxRetry) {
                 mMission.notifyError(e);
                 return;

app/src/main/java/us/shandian/giga/get/MissionRecoveryInfo.java

@@ -0,0 +1,79 @@
+package us.shandian.giga.get;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.support.annotation.NonNull;
+
+import org.schabi.newpipe.extractor.MediaFormat;
+import org.schabi.newpipe.extractor.stream.AudioStream;
+import org.schabi.newpipe.extractor.stream.Stream;
+import org.schabi.newpipe.extractor.stream.SubtitlesStream;
+import org.schabi.newpipe.extractor.stream.VideoStream;
+
+import java.io.Serializable;
+
+public class MissionRecoveryInfo implements Serializable, Parcelable {
+    private static final long serialVersionUID = 0L;
+    //public static final String DIRECT_SOURCE = "direct-source://";
+
+    public MediaFormat format;
+    String desired;
+    boolean desired2;
+    int desiredBitrate;
+
+    transient int attempts = 0;
+
+    String validateCondition = null;
+
+    public MissionRecoveryInfo(@NonNull Stream stream) {
+        if (stream instanceof AudioStream) {
+            desiredBitrate = ((AudioStream) stream).average_bitrate;
+            desired2 = false;
+        } else if (stream instanceof VideoStream) {
+            desired = ((VideoStream) stream).getResolution();
+            desired2 = ((VideoStream) stream).isVideoOnly();
+        } else if (stream instanceof SubtitlesStream) {
+            desired = ((SubtitlesStream) stream).getLanguageTag();
+            desired2 = ((SubtitlesStream) stream).isAutoGenerated();
+        } else {
+            throw new RuntimeException("Unknown stream kind");
+        }
+
+        format = stream.getFormat();
+        if (format == null) throw new NullPointerException("Stream format cannot be null");
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel parcel, int flags) {
+        parcel.writeInt(this.format.ordinal());
+        parcel.writeString(this.desired);
+        parcel.writeInt(this.desired2 ? 0x01 : 0x00);
+        parcel.writeInt(this.desiredBitrate);
+        parcel.writeString(this.validateCondition);
+    }
+
+    private MissionRecoveryInfo(Parcel parcel) {
+        this.format = MediaFormat.values()[parcel.readInt()];
+        this.desired = parcel.readString();
+        this.desired2 = parcel.readInt() != 0x00;
+        this.desiredBitrate = parcel.readInt();
+        this.validateCondition = parcel.readString();
+    }
+
+    public static final Parcelable.Creator<MissionRecoveryInfo> CREATOR = new Parcelable.Creator<MissionRecoveryInfo>() {
+        @Override
+        public MissionRecoveryInfo createFromParcel(Parcel source) {
+            return new MissionRecoveryInfo(source);
+        }
+
+        @Override
+        public MissionRecoveryInfo[] newArray(int size) {
+            return new MissionRecoveryInfo[size];
+        }
+    };
+}

app/src/main/java/us/shandian/giga/service/DownloadManager.java

@@ -177,7 +177,6 @@ public class DownloadManager {
                 mis.psAlgorithm.setTemporalDir(pickAvailableTemporalDir(ctx));
             }
 
-            mis.recovered = exists;
             mis.metadata = sub;
             mis.maxRetry = mPrefMaxRetry;
             mis.mHandler = mHandler;

app/src/main/java/us/shandian/giga/service/DownloadManagerService.java

@@ -23,6 +23,7 @@ import android.os.Handler;
 import android.os.Handler.Callback;
 import android.os.IBinder;
 import android.os.Message;
+import android.os.Parcelable;
 import android.preference.PreferenceManager;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -40,8 +41,11 @@ import org.schabi.newpipe.player.helper.LockManager;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 
 import us.shandian.giga.get.DownloadMission;
+import us.shandian.giga.get.MissionRecoveryInfo;
 import us.shandian.giga.io.StoredDirectoryHelper;
 import us.shandian.giga.io.StoredFileHelper;
 import us.shandian.giga.postprocessing.Postprocessing;
@@ -73,6 +77,7 @@ public class DownloadManagerService extends Service {
     private static final String EXTRA_PATH = "DownloadManagerService.extra.storagePath";
     private static final String EXTRA_PARENT_PATH = "DownloadManagerService.extra.storageParentPath";
     private static final String EXTRA_STORAGE_TAG = "DownloadManagerService.extra.storageTag";
+    private static final String EXTRA_RECOVERY_INFO = "DownloadManagerService.extra.recoveryInfo";
 
     private static final String ACTION_RESET_DOWNLOAD_FINISHED = APPLICATION_ID + ".reset_download_finished";
     private static final String ACTION_OPEN_DOWNLOADS_FINISHED = APPLICATION_ID + ".open_downloads_finished";
@@ -365,7 +370,7 @@ public class DownloadManagerService extends Service {
      * Start a new download mission
      *
      * @param context      the activity context
-     * @param urls       the list of urls to download
+     * @param urls         array of urls to download
      * @param storage      where the file is saved
      * @param kind         type of file (a: audio  v: video  s: subtitle ?: file-extension defined)
      * @param threads      the number of threads maximal used to download chunks of the file.
@@ -373,9 +378,11 @@ public class DownloadManagerService extends Service {
      * @param source       source url of the resource
      * @param psArgs       the arguments for the post-processing algorithm.
      * @param nearLength   the approximated final length of the file
+     * @param recoveryInfo array of MissionRecoveryInfo, in case is required recover the download
      */
-    public static void startMission(Context context, String[] urls, StoredFileHelper storage, char kind,
+    public static void startMission(Context context, String[] urls, StoredFileHelper storage,
-                                    int threads, String source, String psName, String[] psArgs, long nearLength) {
+                                    char kind, int threads, String source, String psName,
+                                    String[] psArgs, long nearLength, MissionRecoveryInfo[] recoveryInfo) {
         Intent intent = new Intent(context, DownloadManagerService.class);
         intent.setAction(Intent.ACTION_RUN);
         intent.putExtra(EXTRA_URLS, urls);
@@ -385,6 +392,7 @@ public class DownloadManagerService extends Service {
         intent.putExtra(EXTRA_POSTPROCESSING_NAME, psName);
         intent.putExtra(EXTRA_POSTPROCESSING_ARGS, psArgs);
         intent.putExtra(EXTRA_NEAR_LENGTH, nearLength);
+        intent.putExtra(EXTRA_RECOVERY_INFO, recoveryInfo);
 
         intent.putExtra(EXTRA_PARENT_PATH, storage.getParentUri());
         intent.putExtra(EXTRA_PATH, storage.getUri());
@@ -404,6 +412,7 @@ public class DownloadManagerService extends Service {
         String source = intent.getStringExtra(EXTRA_SOURCE);
         long nearLength = intent.getLongExtra(EXTRA_NEAR_LENGTH, 0);
         String tag = intent.getStringExtra(EXTRA_STORAGE_TAG);
+        Parcelable[] parcelRecovery = intent.getParcelableArrayExtra(EXTRA_RECOVERY_INFO);
 
         StoredFileHelper storage;
         try {
@@ -418,10 +427,15 @@ public class DownloadManagerService extends Service {
         else
             ps = Postprocessing.getAlgorithm(psName, psArgs);
 
+        MissionRecoveryInfo[] recovery = new MissionRecoveryInfo[parcelRecovery.length];
+        for (int i = 0; i < parcelRecovery.length; i++)
+            recovery[i] = (MissionRecoveryInfo) parcelRecovery[i];
+
         final DownloadMission mission = new DownloadMission(urls, storage, kind, ps);
         mission.threadCount = threads;
         mission.source = source;
         mission.nearLength = nearLength;
+        mission.recoveryInfo = recovery;
 
         if (ps != null)
             ps.setTemporalDir(DownloadManager.pickAvailableTemporalDir(this));

app/src/main/java/us/shandian/giga/ui/adapter/MissionAdapter.java

@@ -62,7 +62,6 @@ import static android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION;
 import static us.shandian.giga.get.DownloadMission.ERROR_CONNECT_HOST;
 import static us.shandian.giga.get.DownloadMission.ERROR_FILE_CREATION;
 import static us.shandian.giga.get.DownloadMission.ERROR_HTTP_NO_CONTENT;
-import static us.shandian.giga.get.DownloadMission.ERROR_HTTP_UNSUPPORTED_RANGE;
 import static us.shandian.giga.get.DownloadMission.ERROR_INSUFFICIENT_STORAGE;
 import static us.shandian.giga.get.DownloadMission.ERROR_NOTHING;
 import static us.shandian.giga.get.DownloadMission.ERROR_PATH_CREATION;
@@ -71,6 +70,7 @@ import static us.shandian.giga.get.DownloadMission.ERROR_POSTPROCESSING;
 import static us.shandian.giga.get.DownloadMission.ERROR_POSTPROCESSING_HOLD;
 import static us.shandian.giga.get.DownloadMission.ERROR_POSTPROCESSING_STOPPED;
 import static us.shandian.giga.get.DownloadMission.ERROR_PROGRESS_LOST;
+import static us.shandian.giga.get.DownloadMission.ERROR_RESOURCE_GONE;
 import static us.shandian.giga.get.DownloadMission.ERROR_SSL_EXCEPTION;
 import static us.shandian.giga.get.DownloadMission.ERROR_TIMEOUT;
 import static us.shandian.giga.get.DownloadMission.ERROR_UNKNOWN_EXCEPTION;
@@ -430,7 +430,7 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
 
         switch (mission.errCode) {
             case 416:
-                msg = R.string.error_http_requested_range_not_satisfiable;
+                msg = R.string.error_http_unsupported_range;
                 break;
             case 404:
                 msg = R.string.error_http_not_found;
@@ -443,9 +443,6 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
             case ERROR_HTTP_NO_CONTENT:
                 msg = R.string.error_http_no_content;
                 break;
-            case ERROR_HTTP_UNSUPPORTED_RANGE:
-                msg = R.string.error_http_unsupported_range;
-                break;
             case ERROR_PATH_CREATION:
                 msg = R.string.error_path_creation;
                 break;
@@ -480,6 +477,9 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
             case ERROR_TIMEOUT:
                 msg = R.string.error_timeout;
                 break;
+            case ERROR_RESOURCE_GONE:
+                msg = R.string.error_download_resource_gone;
+                break;
             default:
                 if (mission.errCode >= 100 && mission.errCode < 600) {
                     msgEx = "HTTP " + mission.errCode;
@@ -859,7 +859,7 @@ public class MissionAdapter extends Adapter<ViewHolder> implements Handler.Callb
 
                         delete.setVisible(true);
 
-                        boolean flag = !mission.isPsFailed();
+                        boolean flag = !mission.isPsFailed() && mission.urls.length > 0;
                         start.setVisible(flag);
                         queue.setVisible(flag);
                     }

app/src/main/res/values-ar/strings.xml

@@ -468,7 +468,6 @@
     <string name="error_connect_host">لا يمكن الاتصال بالخادم</string>
     <string name="error_http_no_content">الخادم لايقوم بإرسال البيانات</string>
     <string name="error_http_unsupported_range">الخادم لا يقبل التنزيل المتعدد، إعادة المحاولة مع @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">عدم استيفاء النطاق المطلوب</string>
     <string name="error_http_not_found">غير موجود</string>
     <string name="error_postprocessing_failed">فشلت المعالجة الاولية</string>
     <string name="clear_finished_download">حذف التنزيلات المنتهية</string>

app/src/main/res/values-be/strings.xml

@@ -455,7 +455,6 @@
     <string name="error_connect_host">Немагчыма злучыцца з серверам</string>
     <string name="error_http_no_content">Не атрымалася атрымаць дадзеныя з сервера</string>
     <string name="error_http_unsupported_range">Сервер не падтрымлівае шматструменную загрузку, паспрабуйце з @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Запытаны дыяпазон недапушчальны</string>
     <string name="error_http_not_found">Не знойдзена</string>
     <string name="error_postprocessing_failed">Пасляапрацоўка не ўдалася</string>
     <string name="clear_finished_download">Ачысціць завершаныя</string>

app/src/main/res/values-cmn/strings.xml

@@ -460,7 +460,6 @@
     <string name="app_update_notification_content_title">NewPipe 更新可用!</string>
     <string name="error_path_creation">无法创建目标文件夹</string>
     <string name="error_http_unsupported_range">服务器不接受多线程下载, 请使用 @string/msg_threads = 1重试</string>
-    <string name="error_http_requested_range_not_satisfiable">请求范围无法满足</string>
     <string name="msg_pending_downloads">继续进行%s个待下载转移</string>
     <string name="pause_downloads_on_mobile_desc">切换至移动数据时有用，尽管一些下载无法被暂停</string>
     <string name="show_comments_title">显示评论</string>

app/src/main/res/values-cs/strings.xml

@@ -463,7 +463,6 @@ otevření ve vyskakovacím okně</string>
     <string name="error_connect_host">Nelze se připojit k serveru</string>
     <string name="error_http_no_content">Server neposílá data</string>
     <string name="error_http_unsupported_range">Server neakceptuje vícevláknové stahování, opakujte akci s @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Požadovaný rozsah nelze splnit</string>
     <string name="error_http_not_found">Nenalezeno</string>
     <string name="error_postprocessing_failed">Post-processing selhal</string>
     <string name="clear_finished_download">Vyčistit dokončená stahování</string>

app/src/main/res/values-da/strings.xml

@@ -380,7 +380,6 @@
     <string name="error_connect_host">Kan ikke forbinde til serveren</string>
     <string name="error_http_no_content">Serveren sender ikke data</string>
     <string name="error_http_unsupported_range">Serveren accepterer ikke multitrådede downloads; prøv igen med @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Det anmodede interval er ikke gyldigt</string>
     <string name="error_http_not_found">Ikke fundet</string>
     <string name="error_postprocessing_failed">Efterbehandling fejlede</string>
     <string name="stop">Stop</string>

app/src/main/res/values-de/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_connect_host">Kann nicht mit dem Server verbinden</string>
     <string name="error_http_no_content">Der Server sendet keine Daten</string>
     <string name="error_http_unsupported_range">Der Server erlaubt kein mehrfädiges Herunterladen – wiederhole mit @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Gewünschter Bereich ist nicht verfügbar</string>
     <string name="error_http_not_found">Nicht gefunden</string>
     <string name="error_postprocessing_failed">Nachbearbeitung fehlgeschlagen</string>
     <string name="clear_finished_download">Um fertige Downloads bereinigen</string>

app/src/main/res/values-el/strings.xml

@@ -456,7 +456,6 @@
     <string name="error_connect_host">Αδυναμία σύνδεσης με τον εξυπηρετητή</string>
     <string name="error_http_no_content">Ο εξυπηρετητής δεν μπορεί να στείλει τα δεδομένα</string>
     <string name="error_http_unsupported_range">Ο εξυπηρετητής δέν υποστηρίζει πολυνηματικές λήψεις, ξαναπροσπαθήστε με @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Το ζητούμενο εύρος δεν μπορεί να εξυπηρετηθεί</string>
     <string name="error_http_not_found">Δεν βρέθηκε</string>
     <string name="error_postprocessing_failed">Μετεπεξεργασία απέτυχε</string>
     <string name="clear_finished_download">Εκκαθάριση ολοκληρωμένων λήψεων</string>

app/src/main/res/values-es/strings.xml

@@ -444,8 +444,8 @@
     <string name="error_ssl_exception">Fallo la conexión segura</string>
     <string name="error_unknown_host">No se pudo encontrar el servidor</string>
     <string name="error_connect_host">No se puede conectar con el servidor</string>
-    <string name="error_http_no_content">El servidor no está enviando datos</string>
+    <string name="error_http_no_content">El servidor no devolvio datos</string>
-    <string name="error_http_unsupported_range">El servidor no acepta descargas multiproceso; intente de nuevo con @string/msg_threads = 1</string>
+    <string name="error_http_unsupported_range">El servidor no acepta descargas multi-hilos, intente de nuevo con @string/msg_threads = 1</string>
     <string name="error_http_requested_range_not_satisfiable">No se puede satisfacer el intervalo seleccionado</string>
     <string name="error_http_not_found">No encontrado</string>
     <string name="error_postprocessing_failed">Falló el posprocesamiento</string>
@@ -453,6 +453,7 @@
     <string name="error_insufficient_storage">No hay suficiente espacio disponible en el dispositivo</string>
     <string name="error_progress_lost">Se perdió el progreso porque el archivo fue eliminado</string>
     <string name="error_timeout">Tiempo de espera excedido</string>
+    <string name="error_download_resource_gone">El recurso solicitado ya no esta disponible</string>
     <string name="downloads_storage_ask_title">Preguntar dónde descargar</string>
     <string name="downloads_storage_ask_summary">Se preguntará dónde guardar cada descarga</string>
     <string name="downloads_storage_ask_summary_kitkat">Se le preguntará dónde guardar cada descarga.

app/src/main/res/values-et/strings.xml

@@ -457,7 +457,6 @@
     <string name="error_connect_host">Serveriga ei saadud ühendust</string>
     <string name="error_http_no_content">Server ei saada andmeid</string>
     <string name="error_http_unsupported_range">Server ei toeta mitmelõimelisi allalaadimisi. Proovi uuesti kasutades @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Taotletud vahemik ei ole rahuldatav</string>
     <string name="error_http_not_found">Ei leitud</string>
     <string name="error_postprocessing_failed">Järeltöötlemine nurjus</string>
     <string name="clear_finished_download">Eemalda lõpetatud allalaadimised</string>

app/src/main/res/values-eu/strings.xml

@@ -456,7 +456,6 @@
     <string name="error_connect_host">Ezin da zerbitzariarekin konektatu</string>
     <string name="error_http_no_content">Zerbitzariak ez du daturik bidaltzen</string>
     <string name="error_http_unsupported_range">Zerbitzariak ez ditu hainbat hariko deskargak onartzen, saiatu @string/msg_threads = 1 erabilita</string>
-    <string name="error_http_requested_range_not_satisfiable">Eskatutako barrutia ezin da bete</string>
     <string name="error_http_not_found">Ez aurkitua</string>
     <string name="error_postprocessing_failed">Post-prozesuak huts egin du</string>
     <string name="clear_finished_download">Garbitu amaitutako deskargak</string>

app/src/main/res/values-fr/strings.xml

@@ -467,7 +467,6 @@
     <string name="saved_tabs_invalid_json">Utilisation des onglets par défaut, erreur lors de la lecture des onglets enregistrés</string>
     <string name="error_http_unsupported_range">Le serveur n’accepte pas les téléchargements multi-fils, veuillez réessayer avec @string/msg_threads = 1</string>
     <string name="msg_pending_downloads">Continuer vos %s transferts en attente depuis Téléchargement</string>
-    <string name="error_http_requested_range_not_satisfiable">Le domaine désiré n\'est pas disponible</string>
     <string name="show_comments_title">Afficher les commentaires</string>
     <string name="show_comments_summary">Désactiver pour ne pas afficher les commentaires</string>
     <string name="autoplay_title">Lecture automatique</string>

app/src/main/res/values-he/strings.xml

@@ -461,7 +461,6 @@
     <string name="error_connect_host">לא ניתן להתחבר לשרת</string>
     <string name="error_http_no_content">השרת לא שולח נתונים</string>
     <string name="error_http_unsupported_range">"השרת לא מקבל הורדות רב ערוציות, מוטב לנסות שוב עם ‎@string/msg_threads = 1 "</string>
-    <string name="error_http_requested_range_not_satisfiable">הטווח המבוקש לא מתאים</string>
     <string name="error_http_not_found">לא נמצא</string>
     <string name="error_postprocessing_failed">העיבוד המאוחר נכשל</string>
     <string name="clear_finished_download">פינוי ההורדות שהסתיימו</string>

app/src/main/res/values-hr/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_connect_host">Nije moguće povezati se s serverom</string>
     <string name="error_http_no_content">Server ne šalje podatke</string>
     <string name="error_http_unsupported_range">Poslužitelj ne prihvaća preuzimanja s više niti, pokušaj ponovo s @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Traženi raspon nije zadovoljavajući</string>
     <string name="error_http_not_found">Nije pronađeno</string>
     <string name="error_postprocessing_failed">Naknadna obrada nije uspjela</string>
     <string name="clear_finished_download">Obriši završena preuzimanja</string>

app/src/main/res/values-id/strings.xml

@@ -450,7 +450,6 @@
     <string name="error_connect_host">Tidak dapat terhubung ke server</string>
     <string name="error_http_no_content">Server tidak mengirim data</string>
     <string name="error_http_unsupported_range">Server tidak menerima unduhan multi-utas, coba lagi dengan @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Rentang yang diminta tidak memuaskan</string>
     <string name="error_http_not_found">Tidak ditemukan</string>
     <string name="error_postprocessing_failed">Pengolahan-pasca gagal</string>
     <string name="clear_finished_download">Hapus unduhan yang sudah selesai</string>

app/src/main/res/values-it/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_connect_host">Impossibile connettersi al server</string>
     <string name="error_http_no_content">Il server non invia dati</string>
     <string name="error_http_unsupported_range">Il server non accetta download multipli, riprovare con @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Intervallo richiesto non soddisfatto</string>
     <string name="error_http_not_found">Non trovato</string>
     <string name="error_postprocessing_failed">Post-processing fallito</string>
     <string name="clear_finished_download">Pulisci i download completati</string>

app/src/main/res/values-ja/strings.xml

@@ -440,7 +440,6 @@
     <string name="error_connect_host">サーバに接続できません</string>
     <string name="error_http_no_content">サーバがデータを送信していません</string>
     <string name="error_http_unsupported_range">サーバが同時接続ダウンロードを受け付けません。再試行してください @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">必要な範囲が満たされていません</string>
     <string name="error_http_not_found">見つかりません</string>
     <string name="error_postprocessing_failed">保存処理に失敗しました</string>
     <string name="clear_finished_download">完了済みを一覧から削除します</string>

app/src/main/res/values-ko/strings.xml

@@ -451,7 +451,6 @@
     <string name="error_connect_host">서버에 접속할 수 없습니다</string>
     <string name="error_http_no_content">서버가 데이터를 전송하지 않고 있습니다</string>
     <string name="error_http_unsupported_range">서버가 다중 스레드 다운로드를 받아들이지 않습니다, @string/msg_threads = 1 를 사용해 다시 시도해보세요</string>
-    <string name="error_http_requested_range_not_satisfiable">요청된 HTTP 범위가 충분하지 않습니다</string>
     <string name="error_http_not_found">HTTP 찾을 수 없습니다</string>
     <string name="error_postprocessing_failed">후처리 작업이 실패하였습니다</string>
     <string name="clear_finished_download">완료된 다운로드 비우기</string>

app/src/main/res/values-ms/strings.xml

@@ -450,7 +450,6 @@
     <string name="error_connect_host">Tidak dapat menyambung ke server</string>
     <string name="error_http_no_content">Server tidak menghantar data</string>
     <string name="error_http_unsupported_range">Server tidak menerima muat turun berbilang thread, cuba lagi dengan @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Julat yang diminta tidak memuaskan</string>
     <string name="error_http_not_found">Tidak ditemui</string>
     <string name="error_postprocessing_failed">Pemprosesan-pasca gagal</string>
     <string name="clear_finished_download">Hapuskan senarai muat turun yang selesai</string>

app/src/main/res/values-nl-rBE/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_connect_host">Kan geen verbinding maken met de server</string>
     <string name="error_http_no_content">De server verzendt geen gegevens</string>
     <string name="error_http_unsupported_range">De server aanvaardt geen meerdradige downloads, probeert het opnieuw met @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Gevraagd bereik niet beschikbaar</string>
     <string name="error_http_not_found">Niet gevonden</string>
     <string name="error_postprocessing_failed">Nabewerking mislukt</string>
     <string name="clear_finished_download">Voltooide downloads wissen</string>

app/src/main/res/values-nl/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_connect_host">Kan niet met de server verbinden</string>
     <string name="error_http_no_content">De server verzendt geen gegevens</string>
     <string name="error_http_unsupported_range">De server accepteert geen multi-threaded downloads, probeer het opnieuw met @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Gevraagde bereik niet beschikbaar</string>
     <string name="error_http_not_found">Niet gevonden</string>
     <string name="error_postprocessing_failed">Nabewerking mislukt</string>
     <string name="clear_finished_download">Voltooide downloads wissen</string>

app/src/main/res/values-pa/strings.xml

@@ -450,7 +450,6 @@
     <string name="error_connect_host">ਸਰਵਰ ਨਾਲ ਜੁੜ ਨਹੀਂ ਸਕਦਾ</string>
     <string name="error_http_no_content">ਸਰਵਰ ਨੇ ਡਾਟਾ ਨਹੀਂ ਭੇਜਿਆ</string>
     <string name="error_http_unsupported_range">ਸਰਵਰ ਮਲਟੀ-Threaded ਡਾਊਨਲੋਡਸ ਨੂੰ ਸਵੀਕਾਰ ਨਹੀਂ ਕਰਦਾ, ਇਸ ਨਾਲ ਦੁਬਾਰਾ ਕੋਸ਼ਿਸ਼ ਕਰੋ @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">ਬੇਨਤੀ ਕੀਤੀ ਸੀਮਾ ਤਸੱਲੀਬਖਸ਼ ਨਹੀਂ ਹੈ</string>
     <string name="error_http_not_found">ਨਹੀਂ ਲਭਿਆ</string>
     <string name="error_postprocessing_failed">Post-processing ਫੇਲ੍ਹ</string>
     <string name="clear_finished_download">ਮੁਕੰਮਲ ਹੋਈਆਂ ਡਾਊਨਲੋਡ ਸਾਫ਼ ਕਰੋ</string>

app/src/main/res/values-pl/strings.xml

@@ -456,7 +456,6 @@
     <string name="error_connect_host">Nie można połączyć się z serwerem</string>
     <string name="error_http_no_content">Serwer nie wysyła danych</string>
     <string name="error_http_unsupported_range">Serwer nie akceptuje pobierania wielowątkowego, spróbuj ponownie za pomocą @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Niewłaściwy zakres</string>
     <string name="error_http_not_found">Nie znaleziono</string>
     <string name="error_postprocessing_failed">Przetwarzanie końcowe nie powiodło się</string>
     <string name="clear_finished_download">Wyczyść ukończone pobieranie</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -463,7 +463,6 @@ abrir em modo popup</string>
     <string name="error_connect_host">Não foi possível conectar ao servidor</string>
     <string name="error_http_no_content">O servidor não envia dados</string>
     <string name="error_http_unsupported_range">O servidor não aceita downloads em multi-thread, tente com @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Intervalo solicitado não aceito</string>
     <string name="error_http_not_found">Não encontrado</string>
     <string name="error_postprocessing_failed">Falha no pós processamento</string>
     <string name="clear_finished_download">Limpar downloads finalizados</string>

app/src/main/res/values-pt/strings.xml

@@ -452,7 +452,6 @@
     <string name="error_connect_host">Não é possível ligar ao servidor</string>
     <string name="error_http_no_content">O servidor não envia dados</string>
     <string name="error_http_unsupported_range">O servidor não aceita transferências de vários processos, tente novamente com @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Intervalo solicitado não satisfatório</string>
     <string name="error_http_not_found">Não encontrado</string>
     <string name="error_postprocessing_failed">Pós-processamento falhado</string>
     <string name="clear_finished_download">Limpar transferências concluídas</string>

app/src/main/res/values-ru/strings.xml

@@ -454,7 +454,6 @@
     <string name="error_permission_denied">Доступ запрещён системой</string>
     <string name="error_unknown_host">Сервер не найден</string>
     <string name="error_http_unsupported_range">Сервер не принимает многопоточные загрузки, повторная попытка с @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Запрашиваемый диапазон недопустим</string>
     <string name="error_http_not_found">Не найдено</string>
     <string name="clear_finished_download">Очистить завершённые</string>
     <string name="stop">Остановить</string>

app/src/main/res/values-sk/strings.xml

@@ -462,7 +462,6 @@
     <string name="error_connect_host">Nepodarilo sa pripojiť k serveru</string>
     <string name="error_http_no_content">Server neposiela údaje</string>
     <string name="error_http_unsupported_range">Server neakceptuje preberanie viacerých vlákien, zopakujte s @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Požadovaný rozsah nie je uspokojivý</string>
     <string name="error_http_not_found">Nenájdené</string>
     <string name="error_postprocessing_failed">Post-spracovanie zlyhalo</string>
     <string name="clear_finished_download">Vyčistiť dokončené sťahovania</string>

app/src/main/res/values-tr/strings.xml

@@ -449,7 +449,6 @@
     <string name="error_connect_host">Sunucuya bağlanılamıyor</string>
     <string name="error_http_no_content">Sunucu veri göndermiyor</string>
     <string name="error_http_unsupported_range">Sunucu, çok iş parçacıklı indirmeleri kabul etmez, @string/msg_threads = 1 ile yeniden deneyin</string>
-    <string name="error_http_requested_range_not_satisfiable">İstenen aralık karşılanamıyor</string>
     <string name="error_http_not_found">Bulunamadı</string>
     <string name="error_postprocessing_failed">İşlem sonrası başarısız</string>
     <string name="clear_finished_download">Tamamlanan indirmeleri temizle</string>

app/src/main/res/values-uk/strings.xml

@@ -471,7 +471,6 @@
     <string name="saved_tabs_invalid_json">Помилка зчитування збережених вкладок. Використовую типові вкладки.</string>
     <string name="main_page_content_summary">Вкладки, що відображаються на головній сторінці</string>
     <string name="updates_setting_description">Показувати сповіщення з пропозицією оновити застосунок за наявності нової версії</string>
-    <string name="error_http_requested_range_not_satisfiable">Запитуваний діапазон неприпустимий</string>
     <string name="msg_pending_downloads">Продовжити ваші %s відкладених переміщень із Завантажень</string>
     <string name="pause_downloads_on_mobile_desc">Корисно під час переходу на мобільні дані, хоча деякі завантаження не можуть бути призупинені</string>
     <string name="show_comments_title">Показувати коментарі</string>

app/src/main/res/values-vi/strings.xml

@@ -449,7 +449,6 @@
     <string name="error_connect_host">Không thế kết nối với máy chủ</string>
     <string name="error_http_no_content">Máy chủ không gửi dữ liệu về</string>
     <string name="error_http_unsupported_range">Máy chủ không chấp nhận tải đa luồng, thử lại với số luồng = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">(HTTP) Không thể đáp ứng khoảng dữ liệu đã yêu cầu</string>
     <string name="error_http_not_found">Không tìm thấy</string>
     <string name="error_postprocessing_failed">Xử lý thất bại</string>
     <string name="clear_finished_download">Dọn các tải về đã hoàn thành</string>

app/src/main/res/values-zh-rTW/strings.xml

@@ -447,7 +447,6 @@
     <string name="error_connect_host">無法連線到伺服器</string>
     <string name="error_http_no_content">伺服器沒有傳送資料</string>
     <string name="error_http_unsupported_range">伺服器不接受多執行緒下載，請以 @string/msg_threads = 1 重試</string>
-    <string name="error_http_requested_range_not_satisfiable">請求範圍無法滿足</string>
     <string name="error_http_not_found">找不到</string>
     <string name="error_postprocessing_failed">後處理失敗</string>
     <string name="clear_finished_download">清除已結束的下載</string>

app/src/main/res/values/strings.xml

@@ -551,13 +551,13 @@
     <string name="error_connect_host">Can not connect to the server</string>
     <string name="error_http_no_content">The server does not send data</string>
     <string name="error_http_unsupported_range">The server does not accept multi-threaded downloads, retry with @string/msg_threads = 1</string>
-    <string name="error_http_requested_range_not_satisfiable">Requested range not satisfiable</string>
     <string name="error_http_not_found">Not found</string>
     <string name="error_postprocessing_failed">Post-processing failed</string>
     <string name="error_postprocessing_stopped">NewPipe was closed while working on the file</string>
     <string name="error_insufficient_storage">No space left on device</string>
     <string name="error_progress_lost">Progress lost, because the file was deleted</string>
     <string name="error_timeout">Connection timeout</string>
+    <string name="error_download_resource_gone">The solicited resource is not available anymore</string>
     <string name="clear_finished_download">Clear finished downloads</string>
     <string name="confirm_prompt">Are you sure?</string>
     <string name="msg_pending_downloads">Continue your %s pending transfers from Downloads</string>