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/*
* Copyright (C) 2022 NotEnoughUpdates contributors
*
* This file is part of NotEnoughUpdates.
*
* NotEnoughUpdates is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* NotEnoughUpdates is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
*/
package io.github.moulberry.notenoughupdates.miscfeatures.updater;
import io.github.moulberry.notenoughupdates.util.NetUtils;
import net.minecraft.client.Minecraft;
import org.apache.commons.io.IOUtils;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
abstract class UpdateLoader {
enum State {
NOTHING, DOWNLOAD_STARTED, DOWNLOAD_FINISHED, INSTALLED, FAILED
}
URL url;
AutoUpdater updater;
State state = State.NOTHING;
UpdateLoader(AutoUpdater updater, URL url) {
this.url = url;
this.updater = updater;
}
public State getState() {
return state;
}
public void setState(State state) {
this.state = state;
}
public URL getUrl() {
return url;
}
public void scheduleDownload() {
state = State.DOWNLOAD_STARTED;
try {
NetUtils.downloadAsync(url, File.createTempFile("NotEnoughUpdates-update", ".jar"))
.handle(
(f, exc) -> {
if (exc != null) {
state = State.FAILED;
updater.logProgress("§cError while downloading. Check your logs for more info.");
exc.printStackTrace();
return null;
}
state = State.DOWNLOAD_FINISHED;
updater.logProgress("Download completed. Trying to install");
launchUpdate(f);
return null;
});
} catch (IOException e) {
state = State.FAILED;
updater.logProgress("§cError while creating download. Check your logs for more info.");
e.printStackTrace();
}
}
public abstract void greet();
public void launchUpdate(File file) {
if (state != State.DOWNLOAD_FINISHED) {
updater.logProgress("§cUpdate is invalid state " + state + " to start update.");
state = State.FAILED;
return;
}
File mcDataDir = new File(Minecraft.getMinecraft().mcDataDir, "mods");
if (!mcDataDir.exists() || !mcDataDir.isDirectory() || !mcDataDir.canRead()) {
updater.logProgress("§cCould not find mods folder. Searched: " + mcDataDir);
state = State.FAILED;
return;
}
ArrayList<File> toDelete = new ArrayList<>();
File[] modFiles = mcDataDir.listFiles();
if (modFiles == null) {
updater.logProgress("§cCould not list minecraft mod folder (" + mcDataDir + ")");
state = State.FAILED;
return;
}
for (File sus : modFiles) {
if (sus.getName().endsWith(".jar")) {
if (updater.isNeuJar(sus)) {
updater.logProgress("Found old NEU file: " + sus + ". Deleting later.");
toDelete.add(sus);
}
}
}
File dest = new File(mcDataDir, file.getName());
try (
InputStream i = Files.newInputStream(file.toPath());
OutputStream o = Files.newOutputStream(dest.toPath());
) {
IOUtils.copyLarge(i, o);
} catch (IOException e) {
e.printStackTrace();
updater.logProgress(
"§cFailed to copy release JAR. Not making any changes to your mod folder. Consult your logs for more info.");
state = State.FAILED;
}
deleteFiles(toDelete);
if (state != State.FAILED) {
state = State.INSTALLED;
updater.logProgress("Update successful. Thank you for your time.");
return;
}
updater.logProgress("§cFailure to delete some files. Please delte the old NEU version manually from your mods folder.");
}
public abstract void deleteFiles(List<File> toDelete);
}
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