init

cy

2022-06-21 129904537f66509f97b285e7eb4f42b3dc349dd0

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package cn.ksource.core.license;
 
import de.schlichtherle.license.CipherParam;
import de.schlichtherle.license.KeyStoreParam;
import de.schlichtherle.license.LicenseContent;
import de.schlichtherle.license.LicenseManager;
import de.schlichtherle.license.LicenseParam;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.prefs.Preferences;
 
public class LicenseController {
 
    private static final String PROPERTIES_LICENSE_INSTALL_FILENAME = "LicenseInstallConfig.properties";
 
    private String appName;
    private String keystoreFilename;
    private String keystorePassword;
    private String alias;
    private String cipherParamPassword;
 
    public LicenseController() {
        loadLicenseInstallPropertiesFile();
    }
 
 
    public LicenseContent verifyLicense() throws Exception {
        
        LicenseParam licenseParam = getLicenseParam();
        try {
            LicenseManager lm = new LicenseManager(licenseParam);
 
            LicenseContent licenseContent = lm.verify();
 
            return licenseContent;
 
        } finally {
            try {
                licenseParam.getKeyStoreParam().getStream().close();
            } catch (IOException ex) {
 
            }
        }
 
    }
 
    /**
     * Install the license file.
     *
     * @return LicenseContent if the license installed properly, null otherwise.
     */
    public LicenseContent installLicense(String licenseFilename) throws Exception {
 
        LicenseParam licenseParam = getLicenseParam();
        try {
            LicenseManager lm = new LicenseManager(licenseParam);
 
            lm.uninstall();
 
            File licenseFile = new File(licenseFilename);
            LicenseContent licenseContent = lm.install(licenseFile);
 
            return licenseContent;
        } finally {
            try {
                licenseParam.getKeyStoreParam().getStream().close();
            } catch (IOException ex) {
 
            }
        }
    }
 
    private LicenseParam getLicenseParam() {
 
        //implementation of KeyStoreParam interface
        // required the keystore containing the private key
        final KeyStoreParam publicKeyStoreParam = new KeyStoreParam() {
            public InputStream getStream() throws IOException {
                final InputStream in = LicenseController.class
                        .getClassLoader().getResourceAsStream(keystoreFilename);
                if (in== null) {
                    System.err.println("Could not load file: " + keystoreFilename);
                    throw new FileNotFoundException(keystoreFilename);
                }
                return in;
            }
 
            public String getAlias() {
                return alias;
            }
 
            public String getStorePwd() {
                return keystorePassword;
            }
 
            public String getKeyPwd() {
                return null;
            }
        };
 
        final CipherParam cipherParam = new CipherParam() {
            public String getKeyPwd() {
                return cipherParamPassword;
            }
        };
 
        return new LicenseParam() {
            public String getSubject() {
                return appName;
            }
 
            public Preferences
                    getPreferences() {
 
                return Preferences.userNodeForPackage(LicenseController.class);
//                return null;
            }
 
            public KeyStoreParam getKeyStoreParam() {
                return publicKeyStoreParam;
            }
 
            public CipherParam getCipherParam() {
                return cipherParam;
            }
        };
    }
 
    private void loadLicenseInstallPropertiesFile() {
 
        Properties properties = new Properties();
 
        ClassLoader classLoader = LicenseController.class
                .getClassLoader();
        try {
            File file = new File(classLoader.getResource(PROPERTIES_LICENSE_INSTALL_FILENAME).getFile().replace("%20", " "));
            FileInputStream in = new FileInputStream(file);
            properties.load(in);
 
            appName = properties.getProperty("app_name");
            keystoreFilename = properties.getProperty("keystore_filename");
            keystorePassword = properties.getProperty("keystore_password");
            alias = properties.getProperty("alias");
            cipherParamPassword = properties.getProperty("cipher_param_password");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    
}