package com.rarchives.ripme.ui;
import java.awt.Desktop;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import org.apache.commons.io.FileUtils;
import org.apache.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONObject;
import org.jsoup.Connection.Response;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
public class UpdateUtils {
private static final Logger logger = Logger.getLogger(UpdateUtils.class);
private static final String DEFAULT_VERSION = "1.0.13";
private static final String updateJsonURL = "http://rarchives.com/ripme.json";
private static final String updateJarURL = "http://rarchives.com/ripme.jar";
private static final String mainFileName = "ripme.jar";
private static final String updateFileName = "ripme.jar.update";
public static String getThisJarVersion() {
String thisVersion = UpdateUtils.class.getPackage().getImplementationVersion();
if (thisVersion == null) {
// Version is null if we're not running from the JAR
thisVersion = DEFAULT_VERSION; ; // Super-high version number
}
return thisVersion;
}
public static void updateProgram(JLabel configUpdateLabel) {
configUpdateLabel.setText("Checking for update...");
Document doc = null;
try {
doc = Jsoup.connect(UpdateUtils.updateJsonURL)
.ignoreContentType(true)
.get();
} catch (IOException e) {
logger.error("Error while fetching update: ", e);
JOptionPane.showMessageDialog(null,
"Error while fetching update: " + e.getMessage() + "",
"RipMe Updater",
JOptionPane.ERROR_MESSAGE);
return;
} finally {
configUpdateLabel.setText("Current version: " + getThisJarVersion());
}
String jsonString = doc.body().html().replaceAll(""", "\"");
JSONObject json = new JSONObject(jsonString);
JSONArray jsonChangeList = json.getJSONArray("changeList");
StringBuilder changeList = new StringBuilder();
for (int i = 0; i < jsonChangeList.length(); i++) {
String change = jsonChangeList.getString(i);
changeList.append("
+ " + change);
}
String latestVersion = json.getString("latestVersion");
if (UpdateUtils.isNewerVersion(latestVersion)) {
int result = JOptionPane.showConfirmDialog(
null,
"New version (" + latestVersion + ") is available!"
+ "
Recent changes:" + changeList.toString()
+ "
Do you want to download and run the newest version?",
"RipMe Updater",
JOptionPane.YES_NO_OPTION);
if (result != JOptionPane.YES_OPTION) {
configUpdateLabel.setText("Current Version: " + getThisJarVersion()
+ "
Latest version: " + latestVersion + "");
return;
}
configUpdateLabel.setText("Downloading new version...");
logger.info("New version found, downloading...");
try {
UpdateUtils.downloadJarAndLaunch(updateJarURL);
} catch (IOException e) {
JOptionPane.showMessageDialog(null,
"Error while updating: " + e.getMessage(),
"RipMe Updater",
JOptionPane.ERROR_MESSAGE);
configUpdateLabel.setText("");
logger.error("Error while updating: ", e);
return;
}
} else {
configUpdateLabel.setText("v" + UpdateUtils.getThisJarVersion() + " is the latest version");
logger.info("Running latest version: " + UpdateUtils.getThisJarVersion());
}
}
private static boolean isNewerVersion(String latestVersion) {
int[] oldVersions = versionStringToInt(getThisJarVersion());
int[] newVersions = versionStringToInt(latestVersion);
if (oldVersions.length < newVersions.length) {
System.err.println("Calculated: " + oldVersions + " < " + latestVersion);
return true;
}
for (int i = 0; i < oldVersions.length; i++) {
if (newVersions[i] > oldVersions[i]) {
logger.debug("oldVersion " + getThisJarVersion() + " < latestVersion" + latestVersion);
return true;
}
else if (newVersions[i] < oldVersions[i]) {
logger.debug("oldVersion " + getThisJarVersion() + " > latestVersion " + latestVersion);
return false;
}
else {
continue;
}
}
// At this point, the version numbers are exactly the same.
// Assume any additional changes to the version text means a new version
return !(latestVersion.equals(getThisJarVersion()));
}
private static int[] versionStringToInt(String version) {
String strippedVersion = version.split("-")[0];
String[] strVersions = strippedVersion.split("\\.");
int[] intVersions = new int[strVersions.length];
for (int i = 0; i < strVersions.length; i++) {
intVersions[i] = Integer.parseInt(strVersions[i]);
}
return intVersions;
}
private static void downloadJarAndLaunch(String updateJarURL)
throws IOException {
Response response;
response = Jsoup.connect(updateJarURL)
.ignoreContentType(true)
.timeout(60000)
.maxBodySize(1024 * 1024 * 100)
.execute();
FileOutputStream out = new FileOutputStream(updateFileName);
out.write(response.bodyAsBytes());
out.close();
logger.info("Download of new version complete; saved to " + updateFileName);
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
try {
logger.info("Executing: java -jar " + updateFileName);
Runtime.getRuntime().exec(new String[] {"java", "-jar", updateFileName});
} catch (IOException e) {
e.printStackTrace();
}
}
});
logger.info("Exiting older version, should execute updated jar (" + updateFileName + ") during exit");
System.exit(0);
}
public static void moveUpdatedJar() {
// Copy the new file (ripme.jar.update) to original location (ripme.jar)
// Delete new file (update) on exit
// Exit
File newFile = new File(updateFileName); // ripme.jar.update
File oldFile = new File(mainFileName); // ripme.jar
if (!newFile.exists()) {
// Can't update without .update file
return;
}
// Attempt to copy new .jar file over old jar file.
int retries = 3;
while (true) {
retries--;
try {
logger.info("Updated .jar file '" + newFile + "' exists, overwriting older version at " + oldFile + " ...");
FileUtils.copyFile(newFile, oldFile);
break; // Copy was successful; break.
}
catch (IOException e) {
logger.error("Failed to copy the updated jar over the original jar.\nUpdated Jar:\t" + newFile + "\nOriginal Jar: " + oldFile);
if (retries < 0) {
// We failed!
// Show error messages, pop up message dialog, and open the directory containing jars
logger.error("Cannot ovewrite existing jar file " + oldFile + " with updated file " + newFile + " ... Please update by moving files manually");
try {
Desktop.getDesktop().open(newFile.getParentFile());
} catch (IOException ioe) {
logger.error("Error while opening directory " + newFile.getParentFile(), ioe);
}
JOptionPane.showMessageDialog(null,
"Failed to copy the updated .jar file over the original .jar file\nUpdated Jar:\t" + newFile + "\nOriginal Jar: " + oldFile + "\n\nPlease update by moving files manually",
"RipMe Updater Error",
JOptionPane.ERROR_MESSAGE);
System.exit(1);
return;
}
e.printStackTrace();
try {
logger.warn("Waiting 1 second, copy retries remaining: " + retries);
Thread.sleep(1000);
} catch (InterruptedException ie) {
logger.error("Interrupted while waiting for original jar " + oldFile + " to be overwritten", ie);
return;
}
}
}
// Delete the updated .jar on exit
if (newFile.exists()) {
logger.info("Will delete '" + newFile + "' on exit");
try {
FileUtils.forceDeleteOnExit(newFile);
}
catch (Exception e) {
logger.error("Failed to schedule delete on file: " + newFile);
return;
}
}
// Execute the copied, updated .jar at ripme.jar
try {
String[] command = new String[] {
"java",
"-jar",
oldFile.getName() };
logger.info("Executing: " + command[0] + " " + command[1] + " " + command[2]);
Runtime.getRuntime().exec(command);
logger.info("Started new version at " + oldFile.getName() + ", quitting current program...");
System.exit(0);
}
catch (IOException e) {
logger.error("Error while executing new jar '" + oldFile.getName() + "'", e);
return;
}
}
}