groovy executing shell commands on remote server - groovy

Question

I have an issue about executing shell commands on a remote server.
I'm trying various solutions and I have one working but it is not optimized in terms of maintenance : I use a batch file that launches putty which connects to the remote server ans sends the command.
ie. in groovy :
def batchFile = "C:\\Validation\\Tests_Auto\\Scripts\\remote_process\\setOldDate.bat"
Runtime.runtime.exec(batchFile)
and in my batch file :
c:
cd C:\Validation\Tests_Auto\Scripts\remote_process\
putty.exe -ssh root#xx.xx.xx.xx -pw **** -m "C:\Validation\Tests_Auto\Scripts\remote_process\setOldDate.txt"
setOldDate.txt contains the command date -s #1522018800
This works. However I'd like to launch it in a cleaner way, either avoiding the use of text file for the command or, better, avoiding using putty.
I tried several another way to do the same thing but it doesn't work. I think I'm not too far but I need a little help.
I tried to launch a direct command via ssh:
Runtime.getRuntime().exec('"c:\\Program Files\\OpenSSH\\bin\\ssh.exe" root:****#xx.xx.xx.xx date -s #1522018800')
I'd be grateful if anyone could help
thanks

Answer 1

#Grab(group='com.jcraft', module='jsch', version='0.1.54')
def ant = new AntBuilder()
ant.sshexec( host:"somehost", username:"dude", password:"yo", command:"touch somefile" )
for other sshexec and scp tasks parameters see doc:
https://ant.apache.org/manual/Tasks/sshexec.html
https://ant.apache.org/manual/Tasks/scp.html
for soapui
this method using apache ant + jsch-0.1.54.jar
the only way i know for soapui:
download the following libraries and put them into soapui\bin\endorsed directory (create the endorsed directory)
https://central.maven.org/maven2/org/apache/ant/ant/1.9.11/ant-1.9.11.jar
https://central.maven.org/maven2/org/apache/ant/ant-launcher/1.9.11/ant-launcher-1.9.11.jar
https://central.maven.org/maven2/com/jcraft/jsch/0.1.54/jsch-0.1.54.jar
edit the soapui\bin\soapui.bat and add the following line where other JAVA_OPTS are defined:
set JAVA_OPTS=%JAVA_OPTS% -Djava.endorsed.dirs="%SOAPUI_HOME%endorsed"
that's because ant libs must be loaded before groovy.
then the code above should work in soapui (except #Grab)
Alternatively you can download only jsch-XXX.jar into existing soapui\bin\ext directory and use jsch library directly from groovy
see examples: http://www.jcraft.com/jsch/examples/
or search for groovy jsch examples

Answer 2

Finally, compiling my various research and struggling to fit my environment constraints (groovy in soapui), I ended up with the following solution that works for me :
download jsch-0.1.54.jar and set it in C:\Program Files\SmartBear\ReadyAPI-2.3.0\bin\ext
use the following groovy script :
import java.util.Properties
import com.jcraft.jsch.ChannelExec
import com.jcraft.jsch.JSch
import com.jcraft.jsch.Session
def ip = context.expand( '${#Project#projectEndpoint}' )
try
{
JSch jsch = new JSch();
Session session = jsch.getSession("root","$ip", 22);
session.setPassword("****");
// Avoid asking for key confirmation
Properties prop = new Properties();
prop.put("StrictHostKeyChecking", "no");
session.setConfig(prop);
session.connect();
// SSH Channel
ChannelExec channelssh = (ChannelExec)session.openChannel("exec");
// Execute command
//channelssh.setCommand("date -s #1520018000"); // change date
channelssh.setCommand("ntpdate -u pool.ntp.org"); // restore date
channelssh.connect();
channelssh.disconnect();
}
catch (Exception e)
{
log.info "exception : " + e
System.out.println(e.getMessage());
}
finally
{
session.disconnect();
}
UPGRADE
Here is a generalization I've made as my needs evolved. The following script, still using jsch allows to send any command.
This deals with host checking and eliminates hazards due to no host checking.
User and password are passed as parameters
import java.util.Properties
import com.jcraft.jsch.ChannelExec
import com.jcraft.jsch.JSch
import com.jcraft.jsch.Session
import java.util.regex.Pattern
def ip = context.expand( '${get endpoint#endpoint}' )
ip = ip.replaceFirst("http[s]?://","")
def user = context.expand( '${#Project#ssh_user}' )
def password = context.expand( '${#Project#ssh_password}' )
def command = context.expand( '${#TestCase#command}' )
def timeout = context.expand( '${#TestCase#timeout_ms}' )
if (timeout == "")
timeout = 1000 // default timeout 1s
else
timeout = timeout.toInteger()
log.info "command = " + command
Session session
try
{
JSch jsch = new JSch();
session = jsch.getSession(user,ip, 22);
session.setPassword(password);
//log.info "user : $user"
//log.info "set password : $password"
//log.info System.getProperty("user.home")+"/.ssh/known_hosts"
jsch.setKnownHosts(System.getProperty("user.home")+"/.ssh/known_hosts");
session.connect();
//log.info "session connect"
// SSH Channel
ChannelExec channelssh = (ChannelExec)session.openChannel("exec");
// Execute command
channelssh.setCommand(command);
InputStream commandOutput = channelssh.getInputStream();
channelssh.connect();
int readByte = commandOutput.read();
outputBuffer = [];
// timeout to avoid infinite loop
while((readByte != -1) && (timeout > 0))
{
outputBuffer.add(readByte)
readByte = commandOutput.read();
timeout = timeout -1
}
// process output
outputBuffer = outputBuffer as byte[]
// convert byte array into string
output = new String(outputBuffer, "UTF-8")
sleep(3000)
//log.info "disconnect"
channelssh.disconnect();
testRunner.testCase.setPropertyValue("cmd_output", output)
}
catch (Exception e)
{
msg = "exception : " + e
log.error msg
testRunner.fail(msg)
}
finally
{
session.disconnect();
}