working pinger

pinger/src/main/groovy/com/muwire/pinger/Pinger.groovy

@@ -1,7 +1,42 @@
 package com.muwire.pinger
 
+
+
+import java.nio.file.Files
+import java.nio.file.Path
+
+import net.i2p.client.I2PClientFactory
+import net.i2p.client.I2PSession
+import net.i2p.client.datagram.I2PDatagramMaker
+import net.i2p.data.Destination
+
 public class Pinger {
     public static void main(String []args) {
-        println "ping"
+        if (args.length != 2) {
+            println "Pass b64 destination as argument 1 and file with contents to send as argument 2"
+            System.exit(1)
+        }
+        
+        def target = new Destination(args[0])
+        def payload = (new File(args[1])).getBytes()
+        
+        def i2pClientFactory = new I2PClientFactory()
+        def i2pClient = i2pClientFactory.createClient()
+        
+        def props = System.getProperties().clone()
+        props.putAt("outbound.nickname", "MuWire Pinger")
+        
+        def baos = new ByteArrayOutputStream()
+        def myDest = i2pClient.createDestination(baos)
+        def bais = new ByteArrayInputStream(baos.toByteArray())
+        
+        def session = i2pClient.createSession(bais, props)
+        
+        session.connect()
+        println "connected"
+        
+        def maker = new I2PDatagramMaker(session)
+        payload = maker.makeI2PDatagram(payload)
+        session.sendMessage(target, payload, I2PSession.PROTO_DATAGRAM, 0, 0)
     }
 }