/*
* The MIT License
*
* Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.util.jna;
import org.jinterop.dcom.common.IJIAuthInfo;
import org.jinterop.dcom.common.JIException;
import org.jinterop.winreg.IJIWinReg;
import org.jinterop.winreg.JIPolicyHandle;
import org.jinterop.winreg.JIWinRegFactory;
import java.net.UnknownHostException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* .NET related code.
*
* @author Kohsuke Kawaguchi
*/
public class DotNet {
/**
* Returns true if the .NET framework of the given version (or greater) is installed.
*/
public static boolean isInstalled(int major, int minor) {
try {
// see http://support.microsoft.com/?scid=kb;en-us;315291 for the basic algorithm
// observation in my registry shows that the actual key name can be things like "v2.0 SP1"
// or "v2.0.50727", so the regexp is written to accomodate this.
RegistryKey key = RegistryKey.LOCAL_MACHINE.openReadonly("SOFTWARE\\Microsoft\\.NETFramework");
try {
for( String keyName : key.getSubKeys() ) {
if (matches(keyName, major, minor))
return true;
}
return false;
} finally {
key.dispose();
}
} catch (JnaException e) {
if(e.getErrorCode()==2) // thrown when openReadonly fails because the key doesn't exist.
return false;
throw e;
}
}
/**
* Returns true if the .NET framework of the given version (or grater) is installed
* on a remote machine.
*/
public static boolean isInstalled(int major, int minor, String targetMachine, IJIAuthInfo session) throws JIException, UnknownHostException {
IJIWinReg registry = JIWinRegFactory.getSingleTon().getWinreg(session,targetMachine,true);
JIPolicyHandle hklm=null;
JIPolicyHandle key=null;
try {
hklm = registry.winreg_OpenHKLM();
key = registry.winreg_OpenKey(hklm,"SOFTWARE\\Microsoft\\.NETFramework", IJIWinReg.KEY_READ );
for( int i=0; ; i++ ) {
String keyName = registry.winreg_EnumKey(key,i)[0];
if(matches(keyName,major,minor))
return true;
}
} catch (JIException e) {
if(e.getErrorCode()==2)
return false; // not found
throw e;
} finally {
if(hklm!=null)
registry.winreg_CloseKey(hklm);
if(key!=null)
registry.winreg_CloseKey(key);
registry.closeConnection();
}
}
private static boolean matches(String keyName, int major, int minor) {
Matcher m = VERSION_PATTERN.matcher(keyName);
if(m.matches()) {
int mj = Integer.parseInt(m.group(1));
if(mj>=major) {
int mn = Integer.parseInt(m.group(2));
if(mn>=minor)
return true;
}
}
return false;
}
private static final Pattern VERSION_PATTERN = Pattern.compile("v(\\d+)\\.(\\d+).*");
}