forked from GeyserMC/Geyser
64d5390800
* Allow for returning of error messages * Fix request not sending before error check
124 lines
4.7 KiB
Java
124 lines
4.7 KiB
Java
/*
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* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.connector.utils;
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import org.geysermc.connector.GeyserConnector;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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public class WebUtils {
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/**
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* Makes a web request to the given URL and returns the body as a string
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*
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* @param reqURL URL to fetch
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* @return Body contents or error message if the request fails
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*/
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public static String getBody(String reqURL) {
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URL url = null;
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try {
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url = new URL(reqURL);
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HttpURLConnection con = (HttpURLConnection) url.openConnection();
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con.setRequestMethod("GET");
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con.setRequestProperty("User-Agent", "Geyser-" + GeyserConnector.getInstance().getPlatformType().toString() + "/" + GeyserConnector.VERSION); // Otherwise Java 8 fails on checking updates
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return connectionToString(con);
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} catch (Exception e) {
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return e.getMessage();
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}
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}
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/**
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* Downloads a file from the given URL and saves it to disk
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*
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* @param reqURL File to fetch
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* @param fileLocation Location to save on disk
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*/
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public static void downloadFile(String reqURL, String fileLocation) {
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try {
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HttpURLConnection con = (HttpURLConnection) new URL(reqURL).openConnection();
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con.setRequestProperty("User-Agent", "Geyser-" + GeyserConnector.getInstance().getPlatformType().toString() + "/" + GeyserConnector.VERSION);
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InputStream in = con.getInputStream();
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Files.copy(in, Paths.get(fileLocation), StandardCopyOption.REPLACE_EXISTING);
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} catch (Exception e) {
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throw new AssertionError("Unable to download and save file: " + fileLocation + " (" + reqURL + ")", e);
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}
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}
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public static String post(String reqURL, String postContent) throws IOException {
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URL url = null;
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url = new URL(reqURL);
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HttpURLConnection con = (HttpURLConnection) url.openConnection();
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con.setRequestMethod("POST");
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con.setRequestProperty("Content-Type", "text/plain");
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con.setRequestProperty("User-Agent", "Geyser-" + GeyserConnector.getInstance().getPlatformType().toString() + "/" + GeyserConnector.VERSION);
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con.setDoOutput(true);
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OutputStream out = con.getOutputStream();
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out.write(postContent.getBytes(StandardCharsets.UTF_8));
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out.close();
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return connectionToString(con);
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}
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/**
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* Get the string output from the passed {@link HttpURLConnection}
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*
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* @param con The connection to get the string from
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* @return The body of the returned page
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* @throws IOException
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*/
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private static String connectionToString(HttpURLConnection con) throws IOException {
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// Send the request (we dont use this but its required for getErrorStream() to work)
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int code = con.getResponseCode();
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// Read the error message if there is one if not just read normally
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InputStream inputStream = con.getErrorStream();
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if (inputStream == null) {
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inputStream = con.getInputStream();
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}
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BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
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String inputLine;
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StringBuffer content = new StringBuffer();
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while ((inputLine = in.readLine()) != null) {
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content.append(inputLine);
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content.append("\n");
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}
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in.close();
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con.disconnect();
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return content.toString();
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}
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}
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