Implementation of RFC3161 in Groovy script - groovy

Question

I need to get timestamp from a TSA in a Groovy script, in a SoapUI project. I try to use following script to get timestamp.
import org.bouncycastle.asn1.*
import org.bouncycastle.asn1.cmp.*
import org.bouncycastle.operator.*
import org.bouncycastle.tsp.*
import com.google.inject.AbstractModule
import com.google.inject.Provides
import com.google.inject.Inject
public interface TSAClient {
public byte[] getToken(byte[] imprint)
}
class TSAModule extends AbstractModule {
private String url
private String username
private String password
public TSAModule(String url, String username, String password) {
this.url = url
this.username = username
this.password = password
}
#Override
protected void configure() {
}
#Provides
TSAClient tsaClient() {
new TSAClientImpl(url, username, password)
}
}
public class TSAClientImpl implements TSAClient {
String tsaURL = "http://localhost:5050/timestamp"
String tsaUsername
String tsaPassword
public TSAClientImpl() {
}
public TSAClientImpl(String url, String username, String password) {
this.tsaURL = url
this.tsaUsername = username
this.tsaPassword = password
}
#Override
public byte[] getToken(byte[] imprint) {
byte[] respBytes = null
def algoFinder = new DefaultDigestAlgorithmIdentifierFinder()
def algoIdentifier = algoFinder.find("SHA-256")
// Setup the time stamp request
def tsqGenerator = new TimeStampRequestGenerator()
tsqGenerator.certReq = true
//tsqGenerator.reqPolicy = new ASN1ObjectIdentifier("1.3.6.1.4.1.13762.3")
def nonce = BigInteger.valueOf(System.currentTimeMillis())
def request = tsqGenerator.generate(algoIdentifier.objectId, imprint, nonce)
byte[] requestBytes = request.encoded
// Call the communications layer
respBytes = getTSAResponse(requestBytes)
// Handle the TSA response
def response = new TimeStampResponse(respBytes)
// validate communication level attributes (RFC 3161 PKIStatus)
response.validate(request)
def failure = response.failInfo
int value = (failure == null) ? 0 : failure.intValue()
if (value != 0) {
throw new IOException("TSA failure: ${value} (${response.statusString})")
}
// extract just the time stamp token (removes communication status info)
def tsToken = response.timeStampToken
if (tsToken == null) {
throw new IOException("TSA failed to return token: ${response.status} (${response.statusString})")
}
def tsTokenInfo = tsToken.timeStampInfo
byte[] encoded = tsToken.encoded
encoded
}
def getTSAResponse(byte[] requestBytes) {
// Setup the TSA connection
def tsaConnection = new URL(tsaURL).openConnection()
tsaConnection.doInput = true
tsaConnection.doOutput = true
tsaConnection.useCaches = false
tsaConnection.setRequestProperty("Content-Type", "application/timestamp-query")
//tsaConnection.setRequestProperty("Content-Transfer-Encoding", "base64")
tsaConnection.setRequestProperty("Content-Transfer-Encoding", "binary")
if (tsaUsername != null && tsaUsername != "") {
String userPassword = tsaUsername + ":" + tsaPassword
tsaConnection.setRequestProperty("Authorization", "Basic " +
userPassword.bytes.encodeBase64().toString())
}
def out = tsaConnection.outputStream
out << requestBytes
out.close()
// Get TSA response as a byte array
def inp = tsaConnection.inputStream
def baos = new ByteArrayOutputStream()
baos << inp
byte[] respBytes = baos.toByteArray()
def encoding = tsaConnection.getContentEncoding()
if (encoding != null && encoding.equalsIgnoreCase("base64")) {
respBytes = new String(respBytes).decodeBase64()
}
respBytes
}
}
I imported bcprov-jdk15on-1.62.jar, bcpkix-jdk15on-1.62.jar, guice-4.2.2.jar and javax.inject-1.jar dependencies to SOAPUI_HOME/bin/ext folder.
I get following error message during execution:
java.lang.NoClassDefFoundError: Unable to load class
com.google.inject.AbstractModule due to missing dependency
[Lorg/aopalliance/intercept/MethodInterceptor;
Source of code: https://github.com/carohadad/seginf/tree/master/Sinapuli-service/src/main/groovy/garantito/sinapuli/tsa
Update:
I added all the needed dependency jar files, but got following error message:
groovy.lang.GroovyRuntimeException: Failed to create Script instance
for class: interface TSAClient. Reason:
java.lang.InstantiationException: TSAClient