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/*
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 *   Copyright 2010 Brian Rosenberger (Brutex Network)
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 *
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 *   Licensed under the Apache License, Version 2.0 (the "License");
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 *   you may not use this file except in compliance with the License.
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 *   You may obtain a copy of the License at
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 *
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 *       http://www.apache.org/licenses/LICENSE-2.0
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 *
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 *   Unless required by applicable law or agreed to in writing, software
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 *   distributed under the License is distributed on an "AS IS" BASIS,
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 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 *   See the License for the specific language governing permissions and
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 *   limitations under the License.
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 */
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package net.brutex.xservices.ws.impl;
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import java.io.File;
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import javax.jws.WebMethod;
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import javax.jws.WebParam;
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import javax.jws.WebService;
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import net.brutex.xservices.types.HostConnection;
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import net.brutex.xservices.types.ReturnCode;
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import net.brutex.xservices.util.BrutexNamespaces;
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import net.brutex.xservices.util.RunTask;
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import net.brutex.xservices.ws.ExecuteService;
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import net.brutex.xservices.ws.XServicesFault;
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import org.apache.tools.ant.taskdefs.ExecTask;
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import org.apache.tools.ant.taskdefs.optional.net.RExecTask;
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import org.apache.tools.ant.taskdefs.optional.net.TelnetTask;
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import org.apache.tools.ant.taskdefs.optional.ssh.SSHExec;
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import org.apache.tools.ant.types.Commandline;
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import org.mozilla.javascript.Context;
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import org.mozilla.javascript.Scriptable;
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/**
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 *
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 * @author Brian Rosenberger, bru@brutex.de
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 */
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@WebService(targetNamespace = BrutexNamespaces.WS_XSERVICES, endpointInterface = "net.brutex.xservices.ws.ExecuteService", serviceName = "ExecuteService")
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public class ExecuteServiceImpl implements ExecuteService {
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommand(java.lang.String,
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	 * java.lang.String, long)
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	 */
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	@WebMethod(operationName = "runCommand")
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	public ReturnCode runCommand(@WebParam(name = "executable") String cmd,
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			@WebParam(name = "argline") String args,
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			@WebParam(name = "timeout") long timeout) {
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		return executeCommand(cmd, Commandline.translateCommandline(args),
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				null, false, null, false, true, false, timeout);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommandWithArgs(java.lang
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	 * .String, java.lang.String[], long)
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	 */
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	@WebMethod(operationName = "runCommandWithArgs")
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	public ReturnCode runCommandWithArgs(
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			@WebParam(name = "executable") String cmd,
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			@WebParam(name = "arg") String[] args,
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			@WebParam(name = "timeout") long timeout) {
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		return executeCommand(cmd, args, null, false, null, false, true, false,
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				timeout);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommandAsync(java.lang
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	 * .String, java.lang.String)
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	 */
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	@WebMethod(operationName = "runCommandAsync")
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	public ReturnCode runCommandAsync(
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			@WebParam(name = "executable") String cmd,
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			@WebParam(name = "argline") String args) {
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		return executeCommand(cmd, Commandline.translateCommandline(args),
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				null, true, null, false, true, false, 0);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommandAsyncWithArgs(java
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	 * .lang.String, java.lang.String[])
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	 */
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	@WebMethod(operationName = "runCommandAsyncWithArgs")
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	public ReturnCode runCommandAsyncWithArgs(
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			@WebParam(name = "executable") String cmd,
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			@WebParam(name = "arg") String[] args) {
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		return executeCommand(cmd, args, null, true, null, false, true, false,
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				0);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
116
	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommandWithSSH(java.lang
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	 * .String, int, java.lang.String, java.lang.String, java.lang.String, long)
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	 */
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	@WebMethod(operationName = "runCommandWithSSH")
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	public ReturnCode runCommandWithSSH(
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			@WebParam(name = "host") HostConnection host,
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			@WebParam(name = "command") String cmd,
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			@WebParam(name = "timeout") long timeout) {
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		return sshExec(host.hostname, host.user, host.password, host.port, cmd,
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				timeout);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runCommandWithSSHKeyAuth(
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	 * java.lang.String, int, java.lang.String, java.lang.String,
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	 * java.lang.String, java.lang.String, long)
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	 */
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	@WebMethod(operationName = "runCommandWithSSHKeyAuth")
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	public ReturnCode runCommandWithSSHKeyAuth(
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			@WebParam(name = "host") HostConnection host,
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			@WebParam(name = "keyfile") String keyfile,
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			@WebParam(name = "command") String cmd,
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			@WebParam(name = "timeout") long timeout) {
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		return sshExecWithCert(host.hostname, host.user, host.password,
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				keyfile, host.port, cmd, timeout);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#rExec(net.brutex.xservices
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	 * .types.HostConnection, java.lang.String, long)
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	 */
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	@WebMethod(operationName = "rExec")
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	public ReturnCode rExec(@WebParam(name = "host") HostConnection host,
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			@WebParam(name = "command") String cmd,
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			@WebParam(name = "timeout") long timeout) {
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		return rexec(host.hostname, host.port, host.user, host.password, cmd,
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				timeout);
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	}
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	/*
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	 * (non-Javadoc)
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	 *
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	 * @see
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	 * net.brutex.xservices.ws.impl.ExecuteService#runTelnet(net.brutex.xservices
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	 * .types.HostConnection, java.lang.String, java.lang.String,
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	 * java.lang.String, long)
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	 */
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	@WebMethod(operationName = "telnet")
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	public ReturnCode runTelnet(@WebParam(name = "host") HostConnection host,
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			@WebParam(name = "prompt") String prompt,
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			@WebParam(name = "command") String cmd,
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			@WebParam(name = "expect") String expect,
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			@WebParam(name = "timeout") long timeout) {
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		return telnet(host.hostname, host.port, host.user, host.password, cmd,
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				timeout, prompt, expect);
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	}
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	public void runJScript(String script) throws XServicesFault {
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		try {
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			// Create and enter a Context. A Context stores information about
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			// the execution environment of a script.
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			Context cx = Context.enter();
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			cx.setOptimizationLevel(0);
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			cx.setLanguageVersion(Context.VERSION_1_7);
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			// cx is the Context instance you're using to run scripts
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			/*
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			 * cx.setClassShutter(new ClassShutter() { public boolean
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			 * visibleToScripts(String className) {
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			 * if(className.startsWith("adapter")) return true;
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			 * if(className.startsWith("java.lang.System") ||
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			 * className.startsWith
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			 * ("org.apache.tomcat.util.log.SystemLogHandler")) return true;
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			 * System.out.println(className + " is blocked."); return false; }
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			 * });
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			 */
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			// Initialise the standard objects (Object, Function, etc.). This
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			// must be done before scripts can be
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			// executed. The null parameter tells initStandardObjects
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			// to create and return a scope object that we use
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			// in later calls.
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			Scriptable scope = cx.initStandardObjects();
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			// Object wrappedOut = Context.javaToJS(System.out, scope);
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			// Object wrappedOut2 = Context.javaToJS(this, scope);
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			// scope.put("out", scope, wrappedOut);
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			// scope.put("exe", scope, wrappedOut2);
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			// Execute the script
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			// cx.evaluateString(scope, "importClass('java.lang.System');\n",
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			// "head", 1, null);
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			// cx.evaluateString(scope, "importPackage('java.util');\n", "head",
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			// 2, null);
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			Object obj = cx
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					.evaluateString(scope, script, "TestScript", 1, null);
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		} catch (Exception e) {
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			System.out.println(e.getMessage());
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		} finally {
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			// Exit the Context. This removes the association between the
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			// Context and the current thread and is an
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			// essential cleanup action. There should be a call to exit for
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			// every call to enter.
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			Context.exit();
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		}
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode executeCommand(String executable, String[] args,
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			File dir, boolean spawn, String inputstring,
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			boolean newenvironment, boolean vmlauncher, boolean searchpath,
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			long timeout) {
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		ExecTask exe = new ExecTask();
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		RunTask runner = new RunTask(exe);
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		/*
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		 * Commandline cmdl = new Commandline(); cmdl.setExecutable(executable);
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		 * cmdl.addArguments(args); System.out.println(cmdl.describeCommand());
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		 */
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		exe.setExecutable(executable);
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		for (String s : args) {
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			exe.createArg().setValue(s);
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		}
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		exe.setDir(dir);
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		if (spawn) {
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			exe.setSpawn(spawn);
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		} else {
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			exe.setTimeout(timeout);
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			exe.setInputString(inputstring);
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			exe.setOutputproperty("ExecuteService.stdout");
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			exe.setErrorProperty("ExecuteService.stderr");
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			exe.setResultProperty("ExecuteService.result");
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		}
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		exe.setNewenvironment(newenvironment);
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		exe.setVMLauncher(vmlauncher);
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		exe.setSearchPath(searchpath);
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode sshExec(String host, String username, String password,
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			int port, String command, long timeout) {
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		SSHExec sshexec = new SSHExec();
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		RunTask runner = new RunTask(sshexec);
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		sshexec.setHost(host);
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		sshexec.setUsername(username);
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		sshexec.setPassword(password);
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		sshexec.setPort(port);
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		sshexec.setCommand(command);
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		sshexec.setTrust(true);
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		sshexec.setTimeout(timeout);
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		sshexec.setOutputproperty("SSHExec.stdout");
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode sshExecWithCert(String host, String username,
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			String passphrase, String keyfile, int port, String command,
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			long timeout) {
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		SSHExec sshexec = new SSHExec();
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		RunTask runner = new RunTask(sshexec);
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		sshexec.setHost(host);
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		sshexec.setUsername(username);
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		sshexec.setKeyfile(keyfile);
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		sshexec.setPassphrase(passphrase);
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		sshexec.setPort(port);
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		sshexec.setCommand(command);
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		sshexec.setTrust(true);
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		sshexec.setTimeout(timeout);
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		sshexec.setOutputproperty("SSHExec.stdout");
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		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
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	private ReturnCode rexec(String host, int port, String username,
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			String password, String command, long timeout) {
311
		RExecTask rexec = new RExecTask();
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		RunTask runner = new RunTask(rexec);
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		rexec.setServer(host);
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		rexec.setPort(port);
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		rexec.setUserid(username);
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		rexec.setPassword(password);
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		rexec.setCommand(command);
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		rexec.setTimeout((int) Math.round(timeout));
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320
		return runner.postTask();
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	}
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	@WebMethod(exclude = true)
324
	private ReturnCode telnet(String host, int port, String username,
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			String password, String command, long timeout, String prompt,
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			String expect) {
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		TelnetTask rexec = new TelnetTask();
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		RunTask runner = new RunTask(rexec);
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		rexec.setServer(host);
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		rexec.setPort(port);
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		rexec.setUserid(username);
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		rexec.setPassword(password);
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		rexec.setTimeout((int) Math.round(timeout));
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335
		rexec.createRead().addText(prompt);
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		rexec.createWrite().addText(command);
337
		rexec.createRead().addText(expect);
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339
		return runner.postTask();
340
	}
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}