LBRYCommunity/lbry-android
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add headers file to package (#792)

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* latest headers
This commit is contained in:
Akinwale Ariwodola 2019-12-11 08:46:34 +01:00 committed by GitHub
parent 0c1c1a6c79
commit 75c2ece016
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3 changed files with 90 additions and 3 deletions
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BIN
src/main/assets/blockchain/headers Normal file
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90
src/main/java/io/lbry/browser/ServiceHelper.java
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@ -2,8 +2,22 @@ package io.lbry.browser;
import android.content.Intent;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import java.io.Closeable;
import java.io.File;
import java.io.InputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class ServiceHelper {
private static final String TAG = "io.lbry.browser.ServiceHelper";
private static final String HEADERS_ASSET_KEY = "headersAssetInitialized";
public static Intent buildIntent(Context ctx, String pythonServiceArgument, Class serviceClass, String pythonName) {
Intent intent = new Intent(ctx, serviceClass);
String argument = ctx.getFilesDir().getAbsolutePath() + "/app";
@ -18,13 +32,83 @@ public class ServiceHelper {
return intent;
}
public static void start(Context ctx, String pythonServiceArgument, Class serviceClass, String pythonName) {
Intent intent = buildIntent(ctx, pythonServiceArgument, serviceClass, pythonName);
ctx.startService(intent);
public static void start(final Context ctx, String pythonServiceArgument, Class serviceClass, String pythonName) {
// always check initial headers status before starting the service
final SharedPreferences sp = ctx.getSharedPreferences(MainActivity.SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
boolean initHeaders = sp.getBoolean(HEADERS_ASSET_KEY, false);
if (initHeaders) {
// initial headers asset copy already done. simply start the service
Intent intent = buildIntent(ctx, pythonServiceArgument, serviceClass, pythonName);
ctx.startService(intent);
return;
}
(new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
String targetPath = String.format("%s/lbryum/lbc_mainnet", Utils.getAppInternalStorageDir(ctx));
File targetDir = new File(targetPath);
if (!targetDir.exists()) {
targetDir.mkdirs();
}
String headersPath = String.format("%s/headers", targetPath);
android.util.Log.d(TAG, String.format("HeadersPath: %s", headersPath));
File targetHeadersFile = new File(headersPath);
InputStream in = null;
FileOutputStream out = null;
long sourceLen = 0;
long targetLen = 0;
try {
android.util.Log.d(TAG, "Opening asset: blockchain/headers");
in = ctx.getAssets().open("blockchain/headers");
out = new FileOutputStream(targetHeadersFile);
byte[] b = new byte[1120]; // 10 headers at a time?
int len;
while ((len = in.read(b, 0, 1120)) > 0) {
sourceLen += len;
out.write(b, 0, len);
}
} catch (Exception ex) {
// failed to copy the headers. sdk will perform the download instead.
android.util.Log.e(TAG, "failed to copy headers asset", ex);
} finally {
closeStream(in);
closeStream(out);
// only mark the copy as successful if the file sizes are the same
targetLen = targetHeadersFile.exists() ? targetHeadersFile.length() : 0;
android.util.Log.d(TAG, String.format("SourceLength=%d; TargetLength=%d", sourceLen, targetLen));
if (targetLen > 0 && targetLen == sourceLen) {
SharedPreferences.Editor editor = sp.edit();
editor.putBoolean(HEADERS_ASSET_KEY, true);
editor.commit();
}
}
return null;
}
protected void onPostExecute(Void result) {
Intent intent = buildIntent(ctx, pythonServiceArgument, serviceClass, pythonName);
ctx.startService(intent);
}
}).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
public static void stop(Context ctx, Class serviceClass) {
Intent intent = new Intent(ctx, serviceClass);
ctx.stopService(intent);
}
private static void closeStream(Closeable closeable) {
try {
if (closeable != null) {
closeable.close();
}
} catch (IOException ex) {
// pass
}
}
}

3
src/main/java/io/lbry/browser/reactmodules/UtilityModule.java
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@ -30,6 +30,9 @@ import com.facebook.react.common.MapBuilder;
import com.squareup.picasso.Picasso;
import java.io.File;
import java.io.Closeable;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;