mirror of https://github.com/webbukkit/dynmap.git
98 lines
3.8 KiB
Java
98 lines
3.8 KiB
Java
package org.dynmap.forge_1_19_3;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import org.dynmap.DynmapCore;
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import org.dynmap.Log;
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public class VersionCheck {
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private static final String VERSION_URL = "http://mikeprimm.com/dynmap/releases.php";
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public static void runCheck(final DynmapCore core) {
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new Thread(new Runnable() {
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public void run() {
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doCheck(core);
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}
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}).start();
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}
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private static int getReleaseVersion(String s) {
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int index = s.lastIndexOf('-');
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if(index < 0)
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index = s.lastIndexOf('.');
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if(index >= 0)
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s = s.substring(0, index);
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String[] split = s.split("\\.");
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int v = 0;
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try {
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for(int i = 0; (i < split.length) && (i < 3); i++) {
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v += Integer.parseInt(split[i]) << (8 * (2 - i));
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}
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} catch (NumberFormatException nfx) {}
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return v;
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}
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private static int getBuildNumber(String s) {
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int index = s.lastIndexOf('-');
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if(index < 0)
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index = s.lastIndexOf('.');
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if(index >= 0)
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s = s.substring(index+1);
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try {
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return Integer.parseInt(s);
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} catch (NumberFormatException nfx) {
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return 99999999;
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}
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}
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private static void doCheck(DynmapCore core) {
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String pluginver = core.getDynmapPluginVersion();
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String platform = core.getDynmapPluginPlatform();
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String platver = core.getDynmapPluginPlatformVersion();
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if((pluginver == null) || (platform == null) || (platver == null))
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return;
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HttpURLConnection conn = null;
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String loc = VERSION_URL;
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int cur_ver = getReleaseVersion(pluginver);
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int cur_bn = getBuildNumber(pluginver);
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try {
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while((loc != null) && (!loc.isEmpty())) {
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URL url = new URL(loc);
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conn = (HttpURLConnection) url.openConnection();
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conn.setRequestProperty("User-Agent", "Dynmap (" + platform + "/" + platver + "/" + pluginver);
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conn.connect();
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loc = conn.getHeaderField("Location");
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}
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BufferedReader rdr = new BufferedReader(new InputStreamReader(conn.getInputStream()));
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String line = null;
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while((line = rdr.readLine()) != null) {
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String[] split = line.split(":");
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if(split.length < 4) continue;
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/* If our platform and version, or wildcard platform version */
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if(split[0].equals(platform) && (split[1].equals("*") || split[1].equals(platver))) {
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int recommended_ver = getReleaseVersion(split[2]);
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int recommended_bn = getBuildNumber(split[2]);
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if((recommended_ver > cur_ver) || ((recommended_ver == cur_ver) && (recommended_bn > cur_bn))) { /* Newer recommended build */
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Log.info("Version obsolete: new recommended version " + split[2] + " is available.");
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}
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else if(cur_ver > recommended_ver) { /* Running dev or prerelease? */
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int prerel_ver = getReleaseVersion(split[3]);
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int prerel_bn = getBuildNumber(split[3]);
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if((prerel_ver > cur_ver) || ((prerel_ver == cur_ver) && (prerel_bn > cur_bn))) {
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Log.info("Version obsolete: new prerelease version " + split[3] + " is available.");
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}
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}
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}
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}
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} catch (Exception x) {
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Log.info("Error checking for latest version");
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} finally {
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if(conn != null) {
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conn.disconnect();
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}
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}
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}
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}
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