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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
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*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the Revised BSD License.
*
* All rights reserved.
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* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
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*
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* Icons provided by OpenIconic : https://useiconic.com/open
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*
*/
package net.sourceforge.plantuml.version;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Collection;
import java.util.Date;
import java.util.Set;
import java.util.TreeSet;
import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;
import net.sourceforge.plantuml.OptionFlags;
import net.sourceforge.plantuml.log.Logme;
import net.sourceforge.plantuml.security.SFile;
import net.sourceforge.plantuml.security.SImageIO;
import net.sourceforge.plantuml.utils.Log;
import net.sourceforge.plantuml.utils.SignatureUtils;
public class LicenseInfo {
public static synchronized LicenseInfo retrieveQuick() {
// ::revert when __CORE__
if (cache == null)
cache = retrieveDistributor();
if (cache == null)
cache = retrieveNamedSlow();
return cache;
// return new LicenseInfo();
}
public boolean isValid() {
// ::revert when __CORE__
return owner != null && System.currentTimeMillis() <= this.expirationDate;
// return false;
}
// ::comment when __CORE__
private static LicenseInfo cache;
private final static Preferences prefs = Preferences.userNodeForPackage(LicenseInfo.class);
public final static LicenseInfo NONE = new LicenseInfo(LicenseType.NONE, 0, 0, null, null, null);
private final LicenseType type;
private final long generationDate;
private final long expirationDate;
private final String owner;
private final String context;
private final byte[] sha;
public LicenseInfo(LicenseType type, long generationDate, long expirationDate, String owner, String context,
byte[] sha) {
this.type = type;
this.generationDate = generationDate;
this.expirationDate = expirationDate;
this.owner = owner;
this.context = context;
this.sha = sha;
}
public static void persistMe(String key) throws BackingStoreException {
prefs.sync();
prefs.put("license", key);
}
public static boolean retrieveNamedOrDistributorQuickIsValid() {
return retrieveQuick().isValid();
}
public static synchronized LicenseInfo retrieveNamedSlow() {
cache = LicenseInfo.NONE;
// if (OptionFlags.ALLOW_INCLUDE == false)
// return cache;
final String key = prefs.get("license", "");
if (key.length() > 0) {
cache = setIfValid(retrieveNamed(key), cache);
if (cache.isValid())
return cache;
}
for (SFile f : fileCandidates()) {
try {
if (f.exists() && f.canRead()) {
final LicenseInfo result = retrieve(f);
if (result == null)
return null;
cache = setIfValid(result, cache);
if (cache.isValid())
return cache;
}
} catch (IOException e) {
Log.info("Error " + e);
// Logme.error(e);
}
}
return cache;
}
public static LicenseInfo retrieveNamed(final String key) {
if (key.length() > 99 && key.matches("^[0-9a-z]+$")) {
try {
final String sig = SignatureUtils.toHexString(PLSSignature.signature());
return PLSSignature.retrieveNamed(sig, key, true);
} catch (Exception e) {
// Logme.error(e);
Log.info("Error retrieving license info" + e);
}
}
return LicenseInfo.NONE;
}
public static BufferedImage retrieveDistributorImage(LicenseInfo licenseInfo) {
if (licenseInfo.getLicenseType() != LicenseType.DISTRIBUTOR) {
return null;
}
try {
final byte[] s1 = PLSSignature.retrieveDistributorImageSignature();
if (SignatureUtils.toHexString(s1).equals(SignatureUtils.toHexString(licenseInfo.sha)) == false)
return null;
final InputStream dis = PSystemVersion.class.getResourceAsStream("/distributor.png");
if (dis == null)
return null;
try {
final BufferedImage result = SImageIO.read(dis);
return result;
} finally {
dis.close();
}
} catch (Exception e) {
Logme.error(e);
}
return null;
}
public static LicenseInfo retrieveDistributor() {
final InputStream dis = PSystemVersion.class.getResourceAsStream("/distributor.txt");
if (dis == null)
return null;
try {
final BufferedReader br = new BufferedReader(new InputStreamReader(dis));
final String licenseString = br.readLine();
br.close();
final LicenseInfo result = PLSSignature.retrieveDistributor(licenseString);
final Throwable creationPoint = new Throwable();
creationPoint.fillInStackTrace();
for (StackTraceElement ste : creationPoint.getStackTrace())
if (ste.toString().contains(result.context))
return result;
return null;
} catch (Exception e) {
Logme.error(e);
return null;
}
}
public static Collection fileCandidates() {
final Set result = new TreeSet<>();
final String classpath = System.getProperty("java.class.path");
String[] classpathEntries = classpath.split(SFile.pathSeparator);
for (String s : classpathEntries) {
if (s == null)
continue;
SFile dir = new SFile(s);
if (dir.isFile())
dir = dir.getParentFile();
if (dir != null && dir.isDirectory())
result.add(dir.file("license.txt"));
}
return result;
}
private static LicenseInfo setIfValid(LicenseInfo value, LicenseInfo def) {
if (value.isValid() || def.isNone())
return value;
return def;
}
private static LicenseInfo retrieve(SFile f) throws IOException {
final BufferedReader br = f.openBufferedReader();
if (br == null)
return null;
try {
final String s = br.readLine();
final LicenseInfo result = retrieveNamed(s);
if (result != null)
Log.info("Reading license from " + f.getAbsolutePath());
return result;
} finally {
br.close();
}
}
public static void main(String[] args) {
LicenseInfo info = retrieveNamedSlow();
System.err.println("valid=" + info.isValid());
System.err.println("info=" + info.owner);
}
public final Date getGenerationDate() {
return new Date(generationDate);
}
public final Date getExpirationDate() {
return new Date(expirationDate);
}
public final String getOwner() {
return owner;
}
public boolean isNone() {
return owner == null;
}
public boolean hasExpired() {
return owner != null && System.currentTimeMillis() > this.expirationDate;
}
public final LicenseType getLicenseType() {
return type;
}
public final String getContext() {
return context;
}
}
