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96 changes: 96 additions & 0 deletions
96
base/src/main/java/butter/droid/base/manager/updater/DhtManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package butter.droid.base.manager.updater; | ||
|
|
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| import android.content.Context; | ||
| import android.os.Handler; | ||
| import android.os.Looper; | ||
| import android.util.Log; | ||
|
|
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| import com.fasterxml.jackson.core.JsonParseException; | ||
| import com.fasterxml.jackson.databind.JsonMappingException; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.github.se_bastiaan.torrentstream.TorrentStream; | ||
| import com.github.se_bastiaan.torrentstream.exceptions.NotInitializedException; | ||
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|
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| import org.json.JSONException; | ||
| import org.libtorrent4j.Hex; | ||
| import org.libtorrent4j.SessionManager; | ||
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| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
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| import javax.inject.Inject; | ||
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| import butter.droid.base.R; | ||
| import butter.droid.base.content.preferences.Prefs; | ||
| import butter.droid.base.utils.PrefUtils; | ||
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| public class DhtManager implements Runnable { | ||
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| private Context mContext; | ||
| private ObjectMapper mMapper; | ||
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| private static final int UPDATE_INTERVAL = 7 * 24 * 60 * 60; | ||
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| @Inject | ||
| public DhtManager(Context context, ObjectMapper mapper) | ||
| { | ||
| this.mContext = context; | ||
| this.mMapper = mapper; | ||
| } | ||
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| public void updateSettings() | ||
| { | ||
| int updated = PrefUtils.get(mContext, Prefs.DHT_UPDATED, 0); | ||
| if (updated + UPDATE_INTERVAL > System.currentTimeMillis() / 1000) { | ||
| return; | ||
| } | ||
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| try { | ||
| SessionManager sm = TorrentStream.getInstance().getSessionManager(); | ||
| this.updateFromDHT(sm); | ||
| return; | ||
| } catch (NotInitializedException e) { | ||
| Log.d("DHT", "NotInitializedException"); | ||
| } | ||
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| final Handler handler = new Handler(Looper.getMainLooper()); | ||
| handler.postDelayed(this, 5000); | ||
| } | ||
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| @Override | ||
| public void run() { | ||
| this.updateSettings(); | ||
| } | ||
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| protected void updateFromDHT(SessionManager sm) { | ||
| Log.d("DHT", "DHT contains " + sm.stats().dhtNodes() + " nodes"); | ||
| String dhtPublicKey = mContext.getResources().getString(R.string.dht_public_key); | ||
| SessionManager.MutableItem data = sm.dhtGetItem(Hex.decode(dhtPublicKey), Hex.decode(""), 20); | ||
| int seq = PrefUtils.get(mContext, Prefs.DHT_SEQ, 0); | ||
| if (data.seq <= seq) { | ||
| return; | ||
| } | ||
| Log.d("DHT", "DHT updated " + data.seq); | ||
| PrefUtils.save(mContext, Prefs.DHT_DATA, data.item.string()); | ||
| PrefUtils.save(mContext, Prefs.DHT_SEQ, data.seq); | ||
| PrefUtils.save(mContext, Prefs.DHT_UPDATED, System.currentTimeMillis() / 1000); | ||
| } | ||
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| public String[] servers() | ||
| { | ||
| String dht = PrefUtils.get(mContext, Prefs.DHT_DATA, ""); | ||
| if (dht.isEmpty()) { | ||
| return new String[0]; | ||
| } | ||
| try { | ||
| DhtObject obj = mMapper.readValue(dht, DhtObject.class); | ||
| return obj.getServers(); | ||
| } catch (JsonMappingException e) { | ||
| return new String[0]; | ||
| } catch (JsonParseException e) { | ||
| return new String[0]; | ||
| } catch (IOException e) { | ||
| return new String[0]; | ||
| } | ||
| } | ||
| } |
17 changes: 17 additions & 0 deletions
17
base/src/main/java/butter/droid/base/manager/updater/DhtObject.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package butter.droid.base.manager.updater; | ||
|
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| import com.fasterxml.jackson.annotation.JsonIgnoreProperties; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
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| import java.util.ArrayList; | ||
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| @JsonIgnoreProperties(ignoreUnknown=true) | ||
| public class DhtObject { | ||
| @JsonProperty("server") | ||
| private String server; | ||
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| public String[] getServers() | ||
| { | ||
| return server.split(","); | ||
| } | ||
| } |
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