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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2011-2013 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
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* exception as provided by Oracle in the GPL Version 2 section of the License
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*
* Modifications:
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*/
package com.sun.enterprise.v3.admin.cluster;
import com.sun.enterprise.config.serverbeans.Nodes;
import com.sun.enterprise.util.cluster.windows.process.WindowsException;
import com.sun.enterprise.universal.glassfish.TokenResolver;
import com.sun.enterprise.util.cluster.windows.process.WindowsCredentials;
import com.sun.enterprise.util.cluster.windows.process.WindowsRemoteScripter;
import com.sun.enterprise.util.cluster.windows.process.WindowsWmi;
import com.sun.enterprise.util.cluster.windows.io.WindowsRemoteFileSystem;
import java.io.*;
import java.io.IOException;
import java.net.*;
import org.glassfish.api.admin.*;
import org.glassfish.api.admin.RestEndpoints;
import static com.sun.enterprise.util.StringUtils.ok;
import com.sun.enterprise.util.cluster.windows.io.WindowsRemoteFile;
import com.sun.enterprise.util.net.NetUtils;
import java.net.InetAddress;
import org.glassfish.api.ActionReport;
import org.glassfish.api.Param;
import org.glassfish.api.admin.AdminCommand;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.api.admin.CommandLock;
import org.glassfish.api.admin.ExecuteOn;
import org.glassfish.api.admin.RuntimeType;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.cluster.ssh.util.DcomUtils;
/**
* This command tests
* to see if a remote Windows machine can be contacted from the server via DCOM.
* @author Byron Nevins
*/
@Service(name = "validate-dcom")
@PerLookup
@CommandLock(CommandLock.LockType.NONE)
@ExecuteOn({RuntimeType.DAS})
@RestEndpoints({
@RestEndpoint(configBean = Nodes.class,
opType = RestEndpoint.OpType.GET,
path = "validate-dcom",
description = "Validate DCOM")
})
public class ValidateDcom implements AdminCommand {
@Param(name = "windowsuser", shortName = "w", optional = true, defaultValue = "${user.name}")
private String user;
@Param(name = "windowspassword", optional = true, password = true)
private String password;
@Param(name = "host", optional = false, primary = true)
private String host;
@Param(name = "windowsdomain", shortName = "d", optional = true)
private String windowsdomain;
@Param(name = "remotetestdir", optional = true, defaultValue = "C:\\")
private String testdir;
@Param(optional = true, shortName = "v", defaultValue = "false")
private boolean verbose;
private boolean debug;
private TokenResolver resolver = new TokenResolver();
private ActionReport report;
private WindowsRemoteFileSystem wrfs;
private WindowsCredentials creds;
private StringBuilder out = new StringBuilder();
private WindowsRemoteFile wrf;
private WindowsRemoteFile script;
private static final String SCRIPT_NAME = "delete_me.bat";
private String scriptFullPath;
@Override
public final void execute(AdminCommandContext context) {
debug = Boolean.parseBoolean(System.getenv("AS_DEBUG")) && verbose;
try {
// try/finally is least messy way of making sure partial success news
// is delivered back to caller
if (!init(context))
return;
if (!testNotLocal())
return;
if (!testDcomPort())
return;
if (!testDcomFileAccess())
return;
if (!testDcomFileWrite())
return;
if (!testWMI())
return;
if (!testRemoteScript())
return;
if (!testJdkAvailable())
return;
}
finally {
if (report.getActionExitCode() != ActionReport.ExitCode.SUCCESS || verbose)
report.setMessage(out.toString());
}
}
private boolean init(AdminCommandContext context) {
report = context.getActionReport();
report.setActionExitCode(ActionReport.ExitCode.SUCCESS);
user = resolver.resolve(user);
password = DcomUtils.resolvePassword(resolver.resolve(password));
if (!ok(password)) {
setError(Strings.get("dcom.nopassword"));
return false;
}
// backslash does not actually matter but it's neater
testdir = resolver.resolve(testdir).replace('/', '\\');
if (testdir.endsWith("\\"))
testdir = testdir.substring(0, testdir.length() - 1);
if (!ok(windowsdomain))
windowsdomain = host;
creds = new WindowsCredentials(host, windowsdomain, user, password);
try {
wrfs = new WindowsRemoteFileSystem(creds);
}
catch (WindowsException ex) {
// probably the j-interop-repackagted.jar is missing
setError(ex.getMessage());
return false;
}
scriptFullPath = testdir + "\\" + SCRIPT_NAME;
return true;
}
/**
* Make sure port 135 (the DCOM port) is alive on the remote host
* Fast preliminary test (4 seconds worst-case)
*/
private boolean testDcomPort() {
try {
// only interested in Exception side-effect...
InetAddress ia = InetAddress.getByName(host);
out.append(Strings.get("validate.dcom.getbyname", ia)).append('\n');
}
catch (UnknownHostException e) {
setError(e, Strings.get("unknown.host", host));
return false;
}
boolean b135 = testPort(135, "DCOM Port");
boolean b139 = testPort(139, "NetBIOS Session Service");
boolean b445 = testPort(445, "Windows Shares");
return b135 && b139 && b445;
}
/**
* return true if A-OK. Otherwise set up the reporter and return false
* @throws CommandValidationException
*/
private boolean testDcomFileAccess() {
try {
wrf = new WindowsRemoteFile(wrfs, testdir);
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.remote.access", testdir, host));
return false;
}
try {
// also looking for side-effect of Exception getting thrown...
if (!wrf.exists()) {
setError(Strings.get("dcom.no.remote.file", testdir, host));
return false;
}
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.remote.file.access", testdir, host));
return false;
}
out.append(Strings.get("dcom.access.ok", testdir, host)).append('\n');
return true;
}
private boolean testDcomFileWrite() {
try {
script = new WindowsRemoteFile(wrf, SCRIPT_NAME);
script.copyFrom("dir " + testdir + "\\\n");
out.append(Strings.get("dcom.write.ok", SCRIPT_NAME, testdir, host)).append('\n');
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.write", SCRIPT_NAME, testdir, host));
return false;
}
return true;
}
private boolean testWMI() {
int count = -1;
try {
WindowsWmi ww = new WindowsWmi(creds);
count = ww.getCount();
if (debug) {
String[] info = ww.getInfo();
out.append(Strings.get("dcom.wmi.procinfolegend"));
for (String s : info) {
// e.g. '\tCommandLine = "xxxxx"'
String[] lines = s.split("[\t\n\r]");
for (String line : lines) {
if (line.startsWith("CommandLine")) {
out.append(" ").append(line).append('\n');
break;
}
}
}
}
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.wmi", host));
return false;
}
out.append(Strings.get("dcom.wmi.ok", host, count)).append('\n');
return true;
}
private boolean testRemoteScript() {
String scriptOut = null;
try {
WindowsRemoteScripter scripter = new WindowsRemoteScripter(creds);
scriptOut = scripter.run(scriptFullPath);
script.delete();
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.run", host));
return false;
}
out.append(Strings.get("dcom.run.ok", host, crunch(12, scriptOut))).append('\n');
return true;
}
// TODO report a bug with JIRA setFailureCause causes explosions!
private void setError(Exception e, String msg) {
//report.setFailureCause(e);
setError(msg + " : " + e.getMessage());
if (debug) {
Throwable t = e;
do {
dumpStack(t);
}
while ((t = t.getCause()) != null);
}
}
private void setError(String msg) {
report.setActionExitCode(ActionReport.ExitCode.FAILURE);
out.append(msg).append('\n');
}
private String crunch(int numlines, String big) {
if (!ok(big))
return big;
StringBuilder sb = new StringBuilder();
String[] ss = big.split("\n");
// numlines or fewer lines
for (int i = 0; i < numlines && i < ss.length; i++) {
sb.append(" ").append(ss[i]).append('\n');
}
return sb.toString();
}
private void dumpStack(Throwable t) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw, true);
t.printStackTrace(pw);
pw.close();
out.append(sw.toString());
}
private boolean testPort(int port, String description) {
try {
Socket socket = new Socket();
socket.connect(new InetSocketAddress(host, port), 4000);
socket.close();
out.append(Strings.get("validate.dcom.connect",
description, port, host)).append('\n');
return true;
}
catch (IOException e) {
setError(e, Strings.get("validate.dcom.no.connect", description, port, host));
return false;
}
}
private boolean testJdkAvailable() {
try {
script = new WindowsRemoteFile(wrf, SCRIPT_NAME);
script.copyFrom("javac -version \r\n");
WindowsRemoteScripter scripter = new WindowsRemoteScripter(creds);
// javac and jar write to stderr NOT stdout
scripter.wantStdErr();
String scriptOut = scripter.run(scriptFullPath);
script.delete();
out.append(Strings.get("dcom.yes.jdk", host, scriptOut));
out.append('\n');
return true;
}
catch (WindowsException ex) {
setError(ex, Strings.get("dcom.no.jdk", host));
return false;
}
}
private boolean testNotLocal() {
if (NetUtils.isThisHostLocal(host)) {
setError(Strings.get("dcom.yes.local", host));
return false;
}
out.append(Strings.get("dcom.no.local", host));
out.append('\n');
return true;
}
}