Module-HTTPD/src/main/java/dev/plex/request/SchematicUploadServlet.java

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2022-04-18 03:05:20 +00:00
package dev.plex.request;
import dev.plex.HTTPDModule;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.Part;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.Arrays;
import java.util.regex.Pattern;
public class SchematicUploadServlet extends HttpServlet
{
private static final Pattern schemNameMatcher = Pattern.compile("^[a-z0-9'!,_ -]{1,30}\\.schem(atic)?$", Pattern.CASE_INSENSITIVE);
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
File worldeditFolder = HTTPDModule.getWorldeditFolder();
if (worldeditFolder == null)
{
resp.getWriter().println(schematicUploadBadHTML("Worldedit is not installed!"));
return;
}
File[] schematics = worldeditFolder.listFiles();
Part uploadPart = null;
try
{
uploadPart = req.getPart("file");
}
catch (IllegalStateException e)
{
resp.getWriter().println(schematicUploadBadHTML("That schematic is too large!"));
return;
}
String filename = uploadPart.getSubmittedFileName().replaceAll("[^a-zA-Z0-9'!,_ .-]", "_");
if (schemNameMatcher.matcher(filename).matches())
{
boolean alreadyExists = schematics != null && Arrays.stream(schematics).anyMatch(file -> HTTPDModule.fileNameEquals(file.getName(), filename));
if (alreadyExists)
{
resp.getWriter().println(schematicUploadBadHTML("A schematic with the name <b>" + filename + "</b> already exists!"));
return;
}
InputStream inputStream = uploadPart.getInputStream();
Files.copy(inputStream, new File(worldeditFolder, filename).toPath(), StandardCopyOption.REPLACE_EXISTING);
inputStream.close();
resp.getWriter().println(schematicUploadGoodHTML("Successfully uploaded <b>" + filename + "."));
}
}
private String schematicUploadBadHTML(String message)
{
String file = AbstractServlet.readFile(this.getClass().getResourceAsStream("/httpd/schematic_upload_bad.html"));
file = file.replace("${MESSAGE}", message);
return file;
}
private String schematicUploadGoodHTML(String message)
{
String file = AbstractServlet.readFile(this.getClass().getResourceAsStream("/httpd/schematic_upload_good.html"));
file = file.replace("${MESSAGE}", message);
return file;
}
}