Add self-updater for github builds

mastodon/build.gradle

@@ -33,6 +33,9 @@ android {
 			initWith release
 			versionNameSuffix "-beta"
 		}
+		githubRelease{
+			initWith release
+		}
 	}
 	compileOptions {
 		sourceCompatibility JavaVersion.VERSION_17
@@ -46,6 +49,9 @@ android {
 		appcenterPublicBeta{
 			setRoot "src/appcenter"
 		}
+		githubRelease{
+			setRoot "src/github"
+		}
 	}
 	lintOptions{
 		checkReleaseBuilds false

mastodon/src/github/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+	package="org.joinmastodon.android">
+
+	<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
+
+	<application>
+		<!--		<receiver android:name=".updater.GithubSelfUpdaterImpl$InstallerStatusReceiver" android:exported="false"/>-->
+		<!--		<receiver android:name=".updater.GithubSelfUpdaterImpl$AfterUpdateRestartReceiver" android:exported="true" android:enabled="false">-->
+		<!--			<intent-filter>-->
+		<!--				<action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>-->
+		<!--			</intent-filter>-->
+		<!--		</receiver>-->
+		<provider
+			android:authorities="${applicationId}.self_update_provider"
+			android:name=".updater.SelfUpdateContentProvider"
+			android:grantUriPermissions="true"
+			android:exported="false"/>
+	</application>
+
+</manifest>

mastodon/src/github/java/org/joinmastodon/android/updater/GithubSelfUpdaterImpl.java

@@ -0,0 +1,336 @@
+package org.joinmastodon.android.updater;
+
+import android.app.Activity;
+import android.app.DownloadManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.content.pm.PackageInstaller;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Build;
+import android.util.Log;
+import android.widget.Toast;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+
+import org.joinmastodon.android.BuildConfig;
+import org.joinmastodon.android.E;
+import org.joinmastodon.android.MastodonApp;
+import org.joinmastodon.android.R;
+import org.joinmastodon.android.api.MastodonAPIController;
+import org.joinmastodon.android.events.SelfUpdateStateChangedEvent;
+
+import java.io.File;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import androidx.annotation.Keep;
+import okhttp3.Call;
+import okhttp3.Request;
+import okhttp3.Response;
+
+@Keep
+public class GithubSelfUpdaterImpl extends GithubSelfUpdater{
+	private static final long CHECK_PERIOD=24*3600*1000L;
+	private static final String TAG="GithubSelfUpdater";
+
+	private UpdateState state=UpdateState.NO_UPDATE;
+	private UpdateInfo info;
+	private long downloadID;
+	private BroadcastReceiver downloadCompletionReceiver=new BroadcastReceiver(){
+		@Override
+		public void onReceive(Context context, Intent intent){
+			if(downloadID!=0 && intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, 0)==downloadID){
+				MastodonApp.context.unregisterReceiver(this);
+				setState(UpdateState.DOWNLOADED);
+			}
+		}
+	};
+
+	public GithubSelfUpdaterImpl(){
+		SharedPreferences prefs=getPrefs();
+		int checkedByBuild=prefs.getInt("checkedByBuild", 0);
+		if(prefs.contains("version") && checkedByBuild==BuildConfig.VERSION_CODE){
+			info=new UpdateInfo();
+			info.version=prefs.getString("version", null);
+			info.size=prefs.getLong("apkSize", 0);
+			downloadID=prefs.getLong("downloadID", 0);
+			if(downloadID==0 || !getUpdateApkFile().exists()){
+				state=UpdateState.UPDATE_AVAILABLE;
+			}else{
+				DownloadManager dm=MastodonApp.context.getSystemService(DownloadManager.class);
+				state=dm.getUriForDownloadedFile(downloadID)==null ? UpdateState.DOWNLOADING : UpdateState.DOWNLOADED;
+				if(state==UpdateState.DOWNLOADING){
+					MastodonApp.context.registerReceiver(downloadCompletionReceiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
+				}
+			}
+		}else if(checkedByBuild!=BuildConfig.VERSION_CODE && checkedByBuild>0){
+			// We are in a new version, running for the first time after update. Gotta clean things up.
+			long id=getPrefs().getLong("downloadID", 0);
+			if(id!=0){
+				MastodonApp.context.getSystemService(DownloadManager.class).remove(id);
+			}
+			getUpdateApkFile().delete();
+			getPrefs().edit()
+					.remove("apkSize")
+					.remove("version")
+					.remove("apkURL")
+					.remove("checkedByBuild")
+					.remove("downloadID")
+					.apply();
+		}
+	}
+
+	private SharedPreferences getPrefs(){
+		return MastodonApp.context.getSharedPreferences("githubUpdater", Context.MODE_PRIVATE);
+	}
+
+	@Override
+	public void maybeCheckForUpdates(){
+		if(state!=UpdateState.NO_UPDATE && state!=UpdateState.UPDATE_AVAILABLE)
+			return;
+		long timeSinceLastCheck=System.currentTimeMillis()-getPrefs().getLong("lastCheck", 0);
+		if(timeSinceLastCheck>CHECK_PERIOD){
+			setState(UpdateState.CHECKING);
+			MastodonAPIController.runInBackground(this::actuallyCheckForUpdates);
+		}
+	}
+
+	private void actuallyCheckForUpdates(){
+		Request req=new Request.Builder()
+				.url("https://api.github.com/repos/mastodon/mastodon-android/releases/latest")
+				.build();
+		Call call=MastodonAPIController.getHttpClient().newCall(req);
+		try(Response resp=call.execute()){
+			JsonObject obj=JsonParser.parseReader(resp.body().charStream()).getAsJsonObject();
+			String tag=obj.get("tag_name").getAsString();
+			Matcher matcher=Pattern.compile("v(\\d+)\\.(\\d+)\\.(\\d+)").matcher(tag);
+			if(!matcher.find()){
+				Log.w(TAG, "actuallyCheckForUpdates: release tag has wrong format: "+tag);
+				return;
+			}
+			int newMajor=Integer.parseInt(matcher.group(1)), newMinor=Integer.parseInt(matcher.group(2)), newRevision=Integer.parseInt(matcher.group(3));
+			String[] currentParts=BuildConfig.VERSION_NAME.split("\\.");
+			int curMajor=Integer.parseInt(currentParts[0]), curMinor=Integer.parseInt(currentParts[1]), curRevision=Integer.parseInt(currentParts[2]);
+			long newVersion=((long)newMajor << 32) | ((long)newMinor << 16) | newRevision;
+			long curVersion=((long)curMajor << 32) | ((long)curMinor << 16) | curRevision;
+			if(newVersion>curVersion || BuildConfig.DEBUG){
+				String version=newMajor+"."+newMinor+"."+newRevision;
+				Log.d(TAG, "actuallyCheckForUpdates: new version: "+version);
+				for(JsonElement el:obj.getAsJsonArray("assets")){
+					JsonObject asset=el.getAsJsonObject();
+					if("application/vnd.android.package-archive".equals(asset.get("content_type").getAsString()) && "uploaded".equals(asset.get("state").getAsString())){
+						long size=asset.get("size").getAsLong();
+						String url=asset.get("browser_download_url").getAsString();
+
+						UpdateInfo info=new UpdateInfo();
+						info.size=size;
+						info.version=version;
+						this.info=info;
+
+						getPrefs().edit()
+								.putLong("apkSize", size)
+								.putString("version", version)
+								.putString("apkURL", url)
+								.putInt("checkedByBuild", BuildConfig.VERSION_CODE)
+								.remove("downloadID")
+								.apply();
+
+						break;
+					}
+				}
+			}
+			getPrefs().edit().putLong("lastCheck", System.currentTimeMillis()).apply();
+		}catch(Exception x){
+			Log.w(TAG, "actuallyCheckForUpdates", x);
+		}finally{
+			setState(info==null ? UpdateState.NO_UPDATE : UpdateState.UPDATE_AVAILABLE);
+		}
+	}
+
+	private void setState(UpdateState state){
+		this.state=state;
+		E.post(new SelfUpdateStateChangedEvent(state));
+	}
+
+	@Override
+	public UpdateState getState(){
+		return state;
+	}
+
+	@Override
+	public UpdateInfo getUpdateInfo(){
+		return info;
+	}
+
+	public File getUpdateApkFile(){
+		return new File(MastodonApp.context.getExternalCacheDir(), "update.apk");
+	}
+
+	@Override
+	public void downloadUpdate(){
+		if(state==UpdateState.DOWNLOADING)
+			throw new IllegalStateException();
+		DownloadManager dm=MastodonApp.context.getSystemService(DownloadManager.class);
+		MastodonApp.context.registerReceiver(downloadCompletionReceiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
+		downloadID=dm.enqueue(
+				new DownloadManager.Request(Uri.parse(getPrefs().getString("apkURL", null)))
+						.setDestinationUri(Uri.fromFile(getUpdateApkFile()))
+		);
+		getPrefs().edit().putLong("downloadID", downloadID).apply();
+		setState(UpdateState.DOWNLOADING);
+	}
+
+	@Override
+	public void installUpdate(Activity activity){
+		if(state!=UpdateState.DOWNLOADED)
+			throw new IllegalStateException();
+		Uri uri;
+		Intent intent=new Intent(Intent.ACTION_INSTALL_PACKAGE);
+		if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.N){
+			uri=new Uri.Builder().scheme("content").authority(activity.getPackageName()+".self_update_provider").path("update.apk").build();
+			intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+		}else{
+			uri=Uri.fromFile(getUpdateApkFile());
+		}
+		intent.setDataAndType(uri, "application/vnd.android.package-archive");
+		activity.startActivity(intent);
+
+		// TODO figure out how to restart the app when updating via this new API
+		/*
+		PackageInstaller installer=activity.getPackageManager().getPackageInstaller();
+		try{
+			final int sid=installer.createSession(new PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL));
+			installer.registerSessionCallback(new PackageInstaller.SessionCallback(){
+				@Override
+				public void onCreated(int i){
+
+				}
+
+				@Override
+				public void onBadgingChanged(int i){
+
+				}
+
+				@Override
+				public void onActiveChanged(int i, boolean b){
+
+				}
+
+				@Override
+				public void onProgressChanged(int id, float progress){
+
+				}
+
+				@Override
+				public void onFinished(int id, boolean success){
+					activity.getPackageManager().setComponentEnabledSetting(new ComponentName(activity, AfterUpdateRestartReceiver.class), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
+				}
+			});
+			activity.getPackageManager().setComponentEnabledSetting(new ComponentName(activity, AfterUpdateRestartReceiver.class), PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
+			PackageInstaller.Session session=installer.openSession(sid);
+			try(OutputStream out=session.openWrite("mastodon.apk", 0, info.size); InputStream in=new FileInputStream(getUpdateApkFile())){
+				byte[] buffer=new byte[16384];
+				int read;
+				while((read=in.read(buffer))>0){
+					out.write(buffer, 0, read);
+				}
+			}
+//			PendingIntent intent=PendingIntent.getBroadcast(activity, 1, new Intent(activity, InstallerStatusReceiver.class), PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_MUTABLE);
+			PendingIntent intent=PendingIntent.getActivity(activity, 1, new Intent(activity, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+			session.commit(intent.getIntentSender());
+		}catch(IOException x){
+			Log.w(TAG, "installUpdate", x);
+			Toast.makeText(activity, x.getMessage(), Toast.LENGTH_SHORT).show();
+		}
+		 */
+	}
+
+	@Override
+	public float getDownloadProgress(){
+		if(state!=UpdateState.DOWNLOADING)
+			throw new IllegalStateException();
+		DownloadManager dm=MastodonApp.context.getSystemService(DownloadManager.class);
+		try(Cursor cursor=dm.query(new DownloadManager.Query().setFilterById(downloadID))){
+			if(cursor.moveToFirst()){
+				long loaded=cursor.getLong(cursor.getColumnIndexOrThrow(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
+				long total=cursor.getLong(cursor.getColumnIndexOrThrow(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
+//				Log.d(TAG, "getDownloadProgress: "+loaded+" of "+total);
+				return total>0 ? (float)loaded/total : 0f;
+			}
+		}
+		return 0;
+	}
+
+	@Override
+	public void cancelDownload(){
+		if(state!=UpdateState.DOWNLOADING)
+			throw new IllegalStateException();
+		DownloadManager dm=MastodonApp.context.getSystemService(DownloadManager.class);
+		dm.remove(downloadID);
+		downloadID=0;
+		getPrefs().edit().remove("downloadID").apply();
+		setState(UpdateState.UPDATE_AVAILABLE);
+	}
+
+	@Override
+	public void handleIntentFromInstaller(Intent intent, Activity activity){
+		int status=intent.getIntExtra(PackageInstaller.EXTRA_STATUS, 0);
+		if(status==PackageInstaller.STATUS_PENDING_USER_ACTION){
+			Intent confirmIntent=intent.getParcelableExtra(Intent.EXTRA_INTENT);
+			activity.startActivity(confirmIntent);
+		}else if(status!=PackageInstaller.STATUS_SUCCESS){
+			String msg=intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE);
+			Toast.makeText(activity, activity.getString(R.string.error)+":\n"+msg, Toast.LENGTH_LONG).show();
+		}
+	}
+
+	/*public static class InstallerStatusReceiver extends BroadcastReceiver{
+
+		@Override
+		public void onReceive(Context context, Intent intent){
+			int status=intent.getIntExtra(PackageInstaller.EXTRA_STATUS, 0);
+			if(status==PackageInstaller.STATUS_PENDING_USER_ACTION){
+				Intent confirmIntent=intent.getParcelableExtra(Intent.EXTRA_INTENT);
+				context.startActivity(confirmIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+			}else if(status!=PackageInstaller.STATUS_SUCCESS){
+				String msg=intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE);
+				Toast.makeText(context, context.getString(R.string.error)+":\n"+msg, Toast.LENGTH_LONG).show();
+			}
+		}
+	}
+
+	public static class AfterUpdateRestartReceiver extends BroadcastReceiver{
+
+		@Override
+		public void onReceive(Context context, Intent intent){
+			if(Intent.ACTION_MY_PACKAGE_REPLACED.equals(intent.getAction())){
+				context.getPackageManager().setComponentEnabledSetting(new ComponentName(context, AfterUpdateRestartReceiver.class), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
+				Toast.makeText(context, R.string.update_installed, Toast.LENGTH_SHORT).show();
+				Intent restartIntent=new Intent(context, MainActivity.class)
+						.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+						.setPackage(context.getPackageName());
+				if(Build.VERSION.SDK_INT<Build.VERSION_CODES.P){
+					context.startActivity(restartIntent);
+				}else{
+					// Bypass activity starting restrictions by starting it from a notification
+					NotificationManager nm=context.getSystemService(NotificationManager.class);
+					NotificationChannel chan=new NotificationChannel("selfUpdateRestart", context.getString(R.string.update_installed), NotificationManager.IMPORTANCE_HIGH);
+					nm.createNotificationChannel(chan);
+					Notification n=new Notification.Builder(context, "selfUpdateRestart")
+							.setContentTitle(context.getString(R.string.update_installed))
+							.setContentIntent(PendingIntent.getActivity(context, 1, restartIntent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE))
+							.setFullScreenIntent(PendingIntent.getActivity(context, 1, restartIntent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE), true)
+							.setSmallIcon(R.drawable.ic_ntf_logo)
+							.build();
+					nm.notify(1, n);
+				}
+			}
+		}
+	}*/
+}

mastodon/src/github/java/org/joinmastodon/android/updater/SelfUpdateContentProvider.java

@@ -0,0 +1,62 @@
+package org.joinmastodon.android.updater;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+
+import java.io.FileNotFoundException;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class SelfUpdateContentProvider extends ContentProvider{
+	@Override
+	public boolean onCreate(){
+		return true;
+	}
+
+	@Nullable
+	@Override
+	public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder){
+		return null;
+	}
+
+	@Nullable
+	@Override
+	public String getType(@NonNull Uri uri){
+		if(isCorrectUri(uri))
+			return "application/vnd.android.package-archive";
+		return null;
+	}
+
+	@Nullable
+	@Override
+	public Uri insert(@NonNull Uri uri, @Nullable ContentValues values){
+		return null;
+	}
+
+	@Override
+	public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs){
+		return 0;
+	}
+
+	@Override
+	public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs){
+		return 0;
+	}
+
+	@Nullable
+	@Override
+	public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException{
+		if(isCorrectUri(uri)){
+			return ParcelFileDescriptor.open(((GithubSelfUpdaterImpl)GithubSelfUpdater.getInstance()).getUpdateApkFile(), ParcelFileDescriptor.MODE_READ_ONLY);
+		}
+		throw new FileNotFoundException();
+	}
+
+	private boolean isCorrectUri(Uri uri){
+		return "/update.apk".equals(uri.getPath());
+	}
+}

mastodon/src/main/java/org/joinmastodon/android/MainActivity.java

@@ -4,6 +4,7 @@ import android.Manifest;
 import android.app.Application;
 import android.app.Fragment;
 import android.content.Intent;
+import android.content.pm.PackageInstaller;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
@@ -20,6 +21,7 @@ import org.joinmastodon.android.fragments.ThreadFragment;
 import org.joinmastodon.android.fragments.onboarding.AccountActivationFragment;
 import org.joinmastodon.android.model.Notification;
 import org.joinmastodon.android.ui.utils.UiUtils;
+import org.joinmastodon.android.updater.GithubSelfUpdater;
 import org.parceler.Parcels;
 
 import java.lang.reflect.InvocationTargetException;
@@ -73,6 +75,8 @@ public class MainActivity extends FragmentStackActivity{
 			try{
 				Class.forName("org.joinmastodon.android.AppCenterWrapper").getMethod("init", Application.class).invoke(null, getApplication());
 			}catch(ClassNotFoundException|NoSuchMethodException|IllegalAccessException|InvocationTargetException ignore){}
+		}else if(GithubSelfUpdater.needSelfUpdating()){
+			GithubSelfUpdater.getInstance().maybeCheckForUpdates();
 		}
 	}
 
@@ -101,7 +105,9 @@ public class MainActivity extends FragmentStackActivity{
 			}
 		}else if(intent.getBooleanExtra("compose", false)){
 			showCompose();
-		}
+		}/*else if(intent.hasExtra(PackageInstaller.EXTRA_STATUS) && GithubSelfUpdater.needSelfUpdating()){
+			GithubSelfUpdater.getInstance().handleIntentFromInstaller(intent, this);
+		}*/
 	}
 
 	private void showFragmentForNotification(Notification notification, String accountID){

mastodon/src/main/java/org/joinmastodon/android/api/MastodonAPIController.java

@@ -197,4 +197,8 @@ public class MastodonAPIController{
 	public static void runInBackground(Runnable action){
 		thread.postRunnable(action, 0);
 	}
+
+	public static OkHttpClient getHttpClient(){
+		return httpClient;
+	}
 }

mastodon/src/main/java/org/joinmastodon/android/events/SelfUpdateStateChangedEvent.java

@@ -0,0 +1,11 @@
+package org.joinmastodon.android.events;
+
+import org.joinmastodon.android.updater.GithubSelfUpdater;
+
+public class SelfUpdateStateChangedEvent{
+	public final GithubSelfUpdater.UpdateState state;
+
+	public SelfUpdateStateChangedEvent(GithubSelfUpdater.UpdateState state){
+		this.state=state;
+	}
+}

mastodon/src/main/java/org/joinmastodon/android/fragments/HomeFragment.java

@@ -2,13 +2,9 @@ package org.joinmastodon.android.fragments;
 
 import android.app.Fragment;
 import android.app.NotificationManager;
-import android.content.Intent;
-import android.content.res.Configuration;
 import android.graphics.Outline;
-import android.graphics.drawable.ColorDrawable;
 import android.os.Build;
 import android.os.Bundle;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -18,20 +14,14 @@ import android.view.WindowInsets;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
-import android.widget.TextView;
 
-import org.joinmastodon.android.MainActivity;
-import org.joinmastodon.android.MastodonApp;
 import org.joinmastodon.android.PushNotificationReceiver;
 import org.joinmastodon.android.R;
-import org.joinmastodon.android.api.requests.oauth.RevokeOauthToken;
 import org.joinmastodon.android.api.session.AccountSession;
 import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.fragments.discover.DiscoverFragment;
-import org.joinmastodon.android.fragments.discover.SearchFragment;
 import org.joinmastodon.android.model.Account;
 import org.joinmastodon.android.ui.AccountSwitcherSheet;
-import org.joinmastodon.android.ui.M3AlertDialogBuilder;
 import org.joinmastodon.android.ui.utils.UiUtils;
 import org.joinmastodon.android.ui.views.TabBar;
 import org.parceler.Parcels;
@@ -41,15 +31,12 @@ import java.util.ArrayList;
 import androidx.annotation.IdRes;
 import androidx.annotation.Nullable;
 import me.grishka.appkit.FragmentStackActivity;
-import me.grishka.appkit.Nav;
-import me.grishka.appkit.api.ErrorResponse;
 import me.grishka.appkit.fragments.AppKitFragment;
 import me.grishka.appkit.fragments.LoaderFragment;
 import me.grishka.appkit.fragments.OnBackPressedListener;
 import me.grishka.appkit.imageloader.ViewImageLoader;
 import me.grishka.appkit.imageloader.requests.UrlImageLoaderRequest;
 import me.grishka.appkit.utils.V;
-import me.grishka.appkit.views.BottomSheet;
 import me.grishka.appkit.views.FragmentRootLinearLayout;
 
 public class HomeFragment extends AppKitFragment implements OnBackPressedListener{
@@ -141,7 +128,6 @@ public class HomeFragment extends AppKitFragment implements OnBackPressedListene
 					}
 				});
 			}
-		}else{
 		}
 
 		return content;

mastodon/src/main/java/org/joinmastodon/android/fragments/HomeTimelineFragment.java

@@ -23,9 +23,11 @@ import android.widget.Toolbar;
 
 import com.squareup.otto.Subscribe;
 
+import org.joinmastodon.android.E;
 import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.requests.timelines.GetHomeTimeline;
 import org.joinmastodon.android.api.session.AccountSessionManager;
+import org.joinmastodon.android.events.SelfUpdateStateChangedEvent;
 import org.joinmastodon.android.events.StatusCreatedEvent;
 import org.joinmastodon.android.model.CacheablePaginatedResponse;
 import org.joinmastodon.android.model.Filter;
@@ -33,6 +35,7 @@ import org.joinmastodon.android.model.Status;
 import org.joinmastodon.android.ui.displayitems.GapStatusDisplayItem;
 import org.joinmastodon.android.ui.displayitems.StatusDisplayItem;
 import org.joinmastodon.android.ui.utils.UiUtils;
+import org.joinmastodon.android.updater.GithubSelfUpdater;
 import org.joinmastodon.android.utils.StatusFilterPredicate;
 
 import java.util.Collections;
@@ -101,6 +104,11 @@ public class HomeTimelineFragment extends StatusListFragment{
 				}
 			}
 		});
+
+		if(GithubSelfUpdater.needSelfUpdating()){
+			E.register(this);
+			updateUpdateState(GithubSelfUpdater.getInstance().getState());
+		}
 	}
 
 	@Override
@@ -397,4 +405,22 @@ public class HomeTimelineFragment extends StatusListFragment{
 			scrollToTop();
 		}
 	}
+
+	@Override
+	public void onDestroyView(){
+		super.onDestroyView();
+		if(GithubSelfUpdater.needSelfUpdating()){
+			E.unregister(this);
+		}
+	}
+
+	private void updateUpdateState(GithubSelfUpdater.UpdateState state){
+		if(state!=GithubSelfUpdater.UpdateState.NO_UPDATE && state!=GithubSelfUpdater.UpdateState.CHECKING)
+			getToolbar().getMenu().findItem(R.id.settings).setIcon(R.drawable.ic_settings_24_badged);
+	}
+
+	@Subscribe
+	public void onSelfUpdateStateChanged(SelfUpdateStateChangedEvent ev){
+		updateUpdateState(ev.state);
+	}
 }

mastodon/src/main/java/org/joinmastodon/android/fragments/SettingsFragment.java

@@ -1,5 +1,6 @@
 package org.joinmastodon.android.fragments;
 
+import android.animation.ObjectAnimator;
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.Intent;
@@ -14,15 +15,21 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowInsets;
 import android.view.WindowManager;
+import android.view.animation.LinearInterpolator;
 import android.widget.Button;
+import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.PopupMenu;
+import android.widget.ProgressBar;
 import android.widget.RadioButton;
 import android.widget.Switch;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.squareup.otto.Subscribe;
+
 import org.joinmastodon.android.BuildConfig;
+import org.joinmastodon.android.E;
 import org.joinmastodon.android.GlobalUserPreferences;
 import org.joinmastodon.android.MainActivity;
 import org.joinmastodon.android.MastodonApp;
@@ -31,11 +38,13 @@ import org.joinmastodon.android.api.MastodonAPIController;
 import org.joinmastodon.android.api.requests.oauth.RevokeOauthToken;
 import org.joinmastodon.android.api.session.AccountSession;
 import org.joinmastodon.android.api.session.AccountSessionManager;
+import org.joinmastodon.android.events.SelfUpdateStateChangedEvent;
 import org.joinmastodon.android.model.PushNotification;
 import org.joinmastodon.android.model.PushSubscription;
 import org.joinmastodon.android.ui.M3AlertDialogBuilder;
 import org.joinmastodon.android.ui.OutlineProviders;
 import org.joinmastodon.android.ui.utils.UiUtils;
+import org.joinmastodon.android.updater.GithubSelfUpdater;
 
 import java.util.ArrayList;
 import java.util.function.Consumer;
@@ -47,7 +56,6 @@ import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 import me.grishka.appkit.api.Callback;
 import me.grishka.appkit.api.ErrorResponse;
-import me.grishka.appkit.fragments.ToolbarFragment;
 import me.grishka.appkit.imageloader.ImageCache;
 import me.grishka.appkit.utils.BindableViewHolder;
 import me.grishka.appkit.utils.V;
@@ -73,6 +81,14 @@ public class SettingsFragment extends MastodonToolbarFragment{
 		accountID=getArguments().getString("account");
 		AccountSession session=AccountSessionManager.getInstance().getAccount(accountID);
 
+		if(GithubSelfUpdater.needSelfUpdating()){
+			GithubSelfUpdater updater=GithubSelfUpdater.getInstance();
+			GithubSelfUpdater.UpdateState state=updater.getState();
+			if(state!=GithubSelfUpdater.UpdateState.NO_UPDATE && state!=GithubSelfUpdater.UpdateState.CHECKING){
+				items.add(new UpdateItem());
+			}
+		}
+
 		items.add(new HeaderItem(R.string.settings_theme));
 		items.add(themeItem=new ThemeItem());
 		items.add(new SwitchItem(R.string.theme_true_black, R.drawable.ic_fluent_dark_theme_24_regular, GlobalUserPreferences.trueBlackTheme, this::onTrueBlackThemeChanged));
@@ -131,7 +147,7 @@ public class SettingsFragment extends MastodonToolbarFragment{
 			public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state){
 				// Add 32dp gaps between sections
 				RecyclerView.ViewHolder holder=parent.getChildViewHolder(view);
-				if((holder instanceof HeaderViewHolder || holder instanceof FooterViewHolder) && holder.getAbsoluteAdapterPosition()>0)
+				if((holder instanceof HeaderViewHolder || holder instanceof FooterViewHolder) && holder.getAbsoluteAdapterPosition()>1)
 					outRect.top=V.dp(32);
 			}
 		});
@@ -155,6 +171,20 @@ public class SettingsFragment extends MastodonToolbarFragment{
 		}
 	}
 
+	@Override
+	public void onViewCreated(View view, Bundle savedInstanceState){
+		super.onViewCreated(view, savedInstanceState);
+		if(GithubSelfUpdater.needSelfUpdating())
+			E.register(this);
+	}
+
+	@Override
+	public void onDestroyView(){
+		super.onDestroyView();
+		if(GithubSelfUpdater.needSelfUpdating())
+			E.unregister(this);
+	}
+
 	private void onThemePreferenceClick(GlobalUserPreferences.ThemePreference theme){
 		GlobalUserPreferences.theme=theme;
 		GlobalUserPreferences.save();
@@ -294,6 +324,16 @@ public class SettingsFragment extends MastodonToolbarFragment{
 		});
 	}
 
+	@Subscribe
+	public void onSelfUpdateStateChanged(SelfUpdateStateChangedEvent ev){
+		if(items.get(0) instanceof UpdateItem item){
+			RecyclerView.ViewHolder holder=list.findViewHolderForAdapterPosition(0);
+			if(holder instanceof UpdateViewHolder uvh){
+				uvh.bind(item);
+			}
+		}
+	}
+
 	private static abstract class Item{
 		public abstract int getViewType();
 	}
@@ -395,6 +435,14 @@ public class SettingsFragment extends MastodonToolbarFragment{
 		}
 	}
 
+	private class UpdateItem extends Item{
+
+		@Override
+		public int getViewType(){
+			return 7;
+		}
+	}
+
 	private class SettingsAdapter extends RecyclerView.Adapter<BindableViewHolder<Item>>{
 		@NonNull
 		@Override
@@ -408,6 +456,7 @@ public class SettingsFragment extends MastodonToolbarFragment{
 				case 4 -> new TextViewHolder();
 				case 5 -> new HeaderViewHolder(true);
 				case 6 -> new FooterViewHolder();
+				case 7 -> new UpdateViewHolder();
 				default -> throw new IllegalStateException("Unexpected value: "+viewType);
 			};
 		}
@@ -609,4 +658,74 @@ public class SettingsFragment extends MastodonToolbarFragment{
 			text.setText(item.text);
 		}
 	}
+
+	private class UpdateViewHolder extends BindableViewHolder<UpdateItem>{
+
+		private final TextView text;
+		private final Button button;
+		private final ImageButton cancelBtn;
+		private final ProgressBar progress;
+
+		private ObjectAnimator rotationAnimator;
+		private Runnable progressUpdater=this::updateProgress;
+
+		public UpdateViewHolder(){
+			super(getActivity(), R.layout.item_settings_update, list);
+			text=findViewById(R.id.text);
+			button=findViewById(R.id.button);
+			cancelBtn=findViewById(R.id.cancel_btn);
+			progress=findViewById(R.id.progress);
+			button.setOnClickListener(v->{
+				GithubSelfUpdater updater=GithubSelfUpdater.getInstance();
+				switch(updater.getState()){
+					case UPDATE_AVAILABLE -> updater.downloadUpdate();
+					case DOWNLOADED -> updater.installUpdate(getActivity());
+				}
+			});
+			cancelBtn.setOnClickListener(v->GithubSelfUpdater.getInstance().cancelDownload());
+			rotationAnimator=ObjectAnimator.ofFloat(progress, View.ROTATION, 0f, 360f);
+			rotationAnimator.setInterpolator(new LinearInterpolator());
+			rotationAnimator.setDuration(1500);
+			rotationAnimator.setRepeatCount(ObjectAnimator.INFINITE);
+		}
+
+		@Override
+		public void onBind(UpdateItem item){
+			GithubSelfUpdater updater=GithubSelfUpdater.getInstance();
+			GithubSelfUpdater.UpdateInfo info=updater.getUpdateInfo();
+			GithubSelfUpdater.UpdateState state=updater.getState();
+			if(state!=GithubSelfUpdater.UpdateState.DOWNLOADED){
+				text.setText(getString(R.string.update_available, info.version));
+				button.setText(getString(R.string.download_update, UiUtils.formatFileSize(getActivity(), info.size, false)));
+			}else{
+				text.setText(getString(R.string.update_ready, info.version));
+				button.setText(R.string.install_update);
+			}
+			if(state==GithubSelfUpdater.UpdateState.DOWNLOADING){
+				rotationAnimator.start();
+				button.setVisibility(View.INVISIBLE);
+				cancelBtn.setVisibility(View.VISIBLE);
+				progress.setVisibility(View.VISIBLE);
+				updateProgress();
+			}else{
+				rotationAnimator.cancel();
+				button.setVisibility(View.VISIBLE);
+				cancelBtn.setVisibility(View.GONE);
+				progress.setVisibility(View.GONE);
+				progress.removeCallbacks(progressUpdater);
+			}
+		}
+
+		private void updateProgress(){
+			GithubSelfUpdater updater=GithubSelfUpdater.getInstance();
+			if(updater.getState()!=GithubSelfUpdater.UpdateState.DOWNLOADING)
+				return;
+			int value=Math.round(progress.getMax()*updater.getDownloadProgress());
+			if(Build.VERSION.SDK_INT>=24)
+				progress.setProgress(value, true);
+			else
+				progress.setProgress(value);
+			progress.postDelayed(progressUpdater, 1000);
+		}
+	}
 }

mastodon/src/main/java/org/joinmastodon/android/fragments/report/ReportAddPostsChoiceFragment.java

@@ -102,6 +102,7 @@ public class ReportAddPostsChoiceFragment extends StatusListFragment{
 		else
 			selectedIDs.add(id);
 		list.invalidate();
+		btn.setEnabled(!selectedIDs.isEmpty());
 	}
 
 	@Override

mastodon/src/main/java/org/joinmastodon/android/updater/GithubSelfUpdater.java

@@ -0,0 +1,54 @@
+package org.joinmastodon.android.updater;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import org.joinmastodon.android.BuildConfig;
+
+public abstract class GithubSelfUpdater{
+	private static GithubSelfUpdater instance;
+
+	public static GithubSelfUpdater getInstance(){
+		if(instance==null){
+			try{
+				Class<?> c=Class.forName("org.joinmastodon.android.updater.GithubSelfUpdaterImpl");
+				instance=(GithubSelfUpdater) c.newInstance();
+			}catch(IllegalAccessException|InstantiationException|ClassNotFoundException ignored){
+			}
+		}
+		return instance;
+	}
+
+	public static boolean needSelfUpdating(){
+		return BuildConfig.BUILD_TYPE.equals("githubRelease");
+	}
+
+	public abstract void maybeCheckForUpdates();
+
+	public abstract GithubSelfUpdater.UpdateState getState();
+
+	public abstract GithubSelfUpdater.UpdateInfo getUpdateInfo();
+
+	public abstract void downloadUpdate();
+
+	public abstract void installUpdate(Activity activity);
+
+	public abstract float getDownloadProgress();
+
+	public abstract void cancelDownload();
+
+	public abstract void handleIntentFromInstaller(Intent intent, Activity activity);
+
+	public enum UpdateState{
+		NO_UPDATE,
+		CHECKING,
+		UPDATE_AVAILABLE,
+		DOWNLOADING,
+		DOWNLOADED
+	}
+
+	public static class UpdateInfo{
+		public String version;
+		public long size;
+	}
+}

mastodon/src/main/res/drawable/bg_settings_update.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+	<solid android:color="?colorPollVoted"/>
+	<corners android:radius="4dp"/>
+</shape>

mastodon/src/main/res/drawable/bg_update_download_progress.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android" android:color="?android:colorForeground">
+	<item android:id="@android:id/mask">
+		<shape android:shape="oval">
+			<solid android:color="#18000000"/>
+		</shape>
+	</item>
+	<item>
+		<shape android:shape="oval">
+			<solid android:color="?android:colorBackground"/>
+		</shape>
+	</item>
+</ripple>

mastodon/src/main/res/drawable/ic_fluent_dismiss_16_filled.xml

@@ -0,0 +1,3 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="16dp" android:height="16dp" android:viewportWidth="16" android:viewportHeight="16">
+    <path android:pathData="M2.397 2.554L2.47 2.47c0.266-0.267 0.683-0.29 0.976-0.073L3.53 2.47 8 6.939l4.47-4.47c0.293-0.292 0.767-0.292 1.06 0 0.293 0.294 0.293 0.768 0 1.061L9.061 8l4.47 4.47c0.266 0.266 0.29 0.683 0.072 0.976L13.53 13.53c-0.266 0.267-0.683 0.29-0.976 0.073L12.47 13.53 8 9.061l-4.47 4.47c-0.293 0.292-0.767 0.292-1.06 0-0.293-0.294-0.293-0.768 0-1.061L6.939 8l-4.47-4.47C2.204 3.264 2.18 2.847 2.398 2.554L2.47 2.47 2.397 2.554z" android:fillColor="@color/fluent_default_icon_tint"/>
+</vector>

mastodon/src/main/res/drawable/ic_settings_24_badged.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+	<item android:drawable="@drawable/ic_fluent_settings_24_regular" android:left="2dp" android:right="2dp" android:top="2dp" android:bottom="2dp"/>
+	<item android:width="14dp" android:height="14dp" android:gravity="top|right">
+		<shape android:shape="oval">
+			<stroke android:color="?android:colorPrimary" android:width="2dp"/>
+			<solid android:color="@color/primary_600"/>
+		</shape>
+	</item>
+</layer-list>

mastodon/src/main/res/drawable/update_progress.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+	<item android:id="@android:id/progress">
+		<shape
+			android:innerRadius="16dp"
+			android:shape="ring"
+			android:thickness="4dp"
+			android:useLevel="true">
+			<solid android:color="?colorSearchHint"/>
+		</shape>
+	</item>
+</layer-list>

mastodon/src/main/res/layout/item_settings_update.xml

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:padding="8dp">
+
+	<LinearLayout
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:minHeight="64dp"
+		android:gravity="center_vertical"
+		android:paddingStart="16dp"
+		android:background="@drawable/bg_settings_update"
+		android:orientation="horizontal">
+
+		<TextView
+			android:id="@+id/text"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_weight="1"
+			android:layout_marginEnd="4dp"
+			android:layout_marginTop="16dp"
+			android:layout_marginBottom="16dp"
+			android:textAppearance="@style/m3_body_medium"
+			tools:text="@string/update_available"/>
+
+		<FrameLayout
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content">
+
+			<Button
+				android:id="@+id/button"
+				android:layout_width="wrap_content"
+				android:layout_height="wrap_content"
+				android:layout_gravity="center_vertical|end"
+				android:background="?android:selectableItemBackground"
+				android:textColor="?colorAccentLight"
+				android:textAllCaps="true"
+				android:textSize="14dp"
+				android:paddingLeft="16dp"
+				android:paddingRight="16dp"
+				android:stateListAnimator="@null"
+				tools:text="@string/install_update"/>
+
+			<ImageButton
+				android:id="@+id/cancel_btn"
+				android:layout_width="40dp"
+				android:layout_height="40dp"
+				android:layout_gravity="end|center_vertical"
+				android:layout_marginEnd="16dp"
+				android:background="@drawable/bg_update_download_progress"
+				android:tint="?colorSearchHint"
+				android:contentDescription="@string/cancel"
+				android:visibility="gone"
+				android:src="@drawable/ic_fluent_dismiss_16_filled"/>
+
+			<ProgressBar
+				android:id="@+id/progress"
+				android:layout_width="40dp"
+				android:layout_height="40dp"
+				android:layout_gravity="end|center_vertical"
+				android:layout_marginEnd="16dp"
+				android:progressDrawable="@drawable/update_progress"
+				android:max="1000"
+				android:padding="0dp"
+				android:visibility="gone"
+				android:indeterminateOnly="false"
+				android:indeterminate="false"/>
+
+		</FrameLayout>
+
+	</LinearLayout>
+
+</FrameLayout>

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

@@ -377,4 +377,11 @@
 	<string name="file_upload_time_remaining">%s remaining</string>
 	<string name="upload_error_connection_lost">Your device lost connection to the internet</string>
 	<string name="upload_processing">Processing…</string>
+	<!-- %s is version like 1.2.3 -->
+	<string name="update_available">Mastodon for Android %s is ready to download.</string>
+	<!-- %s is version like 1.2.3 -->
+	<string name="update_ready">Mastodon for Android %s is downloaded and ready to install.</string>
+	<!-- %s is file size -->
+	<string name="download_update">Download (%s)</string>
+	<string name="install_update">Install</string>
 </resources>