118 lines
4.4 KiB
Java
118 lines
4.4 KiB
Java
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package com.rarchives.ripme.ui;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import javax.swing.JLabel;
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import org.json.JSONArray;
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import org.json.JSONObject;
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import org.jsoup.Connection.Response;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Document;
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public class UpdateUtils {
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private static final String DEFAULT_VERSION = "1.0.0";
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private static final String updateJsonURL = "http://rarchives.com/ripme.json";
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private static final String updateJarURL = "http://rarchives.com/ripme.jar";
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public static void updateProgram(JLabel configUpdateLabel) {
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configUpdateLabel.setText("Checking for update...:");
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Document doc = null;
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try {
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doc = Jsoup.connect(UpdateUtils.updateJsonURL)
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.ignoreContentType(true)
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.get();
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} catch (IOException e) {
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configUpdateLabel.setText("Error while fetching update: " + e.getMessage());
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e.printStackTrace();
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return;
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}
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String jsonString = doc.body().html().replaceAll(""", "\"");
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JSONObject json = new JSONObject(jsonString);
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JSONArray jsonChangeList = json.getJSONArray("changeList");
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configUpdateLabel.setText("Most recent changes:");
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for (int i = 0; i < jsonChangeList.length(); i++) {
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String change = jsonChangeList.getString(i);
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configUpdateLabel.setText(configUpdateLabel.getText() + "<br> + " + change);
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}
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String latestVersion = json.getString("latestVersion");
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if (UpdateUtils.isNewerVersion(latestVersion)) {
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configUpdateLabel.setText("<html>Newer version found! <br><br>" + configUpdateLabel.getText() + "</html>");
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try {
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UpdateUtils.downloadJarAndReplace(updateJarURL);
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} catch (IOException e) {
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configUpdateLabel.setText("Error while updating: " + e.getMessage());
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e.printStackTrace();
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return;
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}
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} else {
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configUpdateLabel.setText("Running latest version: " + UpdateUtils.getThisJarVersion());
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}
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}
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private static void downloadJarAndReplace(String updateJarURL)
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throws IOException {
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String newFile = "ripme.jar.update";
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Response response;
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response = Jsoup.connect(updateJarURL)
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.ignoreContentType(true)
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.timeout(60000)
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.maxBodySize(1024 * 1024 * 100)
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.execute();
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FileOutputStream out = new FileOutputStream(newFile);
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out.write(response.bodyAsBytes());
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out.close();
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Runtime.getRuntime().exec(new String[] {"java", "-jar", newFile});
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System.exit(0);
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}
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private static String getThisJarVersion() {
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String thisVersion = UpdateUtils.class.getPackage().getImplementationVersion();
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if (thisVersion == null) {
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// Version is null if we're not running from the JAR
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thisVersion = DEFAULT_VERSION; ; // Super-high version number
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}
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return thisVersion;
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}
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private static boolean isNewerVersion(String latestVersion) {
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int[] oldVersions = versionStringToInt(getThisJarVersion());
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int[] newVersions = versionStringToInt(latestVersion);
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if (oldVersions.length < newVersions.length) {
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System.err.println("Calculated: " + oldVersions + " < " + latestVersion);
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return true;
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}
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for (int i = 0; i < oldVersions.length; i++) {
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System.err.println("Calculating: " + newVersions[i] + " <> " + oldVersions[i]);
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if (newVersions[i] > oldVersions[i]) {
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return true;
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}
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else if (newVersions[i] < oldVersions[i]) {
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return false;
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}
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else {
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continue;
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}
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}
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// At this point, the version numbers are exactly the same.
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// Assume any additional changes to the version text means a new version
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return !(latestVersion.equals(getThisJarVersion()));
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}
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private static int[] versionStringToInt(String version) {
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String strippedVersion = version.split("-")[0];
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String[] strVersions = strippedVersion.split("\\.");
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int[] intVersions = new int[strVersions.length];
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for (int i = 0; i < strVersions.length; i++) {
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intVersions[i] = Integer.parseInt(strVersions[i]);
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}
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return intVersions;
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}
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}
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