package org.jivesoftware.smackx.bytestreams.ibb; import static org.junit.Assert.*; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Random; import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.PacketListener; import org.jivesoftware.smack.packet.IQ; import org.jivesoftware.smack.packet.Message; import org.jivesoftware.smack.util.StringUtils; import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager; import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamSession; import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager.StanzaType; import org.jivesoftware.smackx.bytestreams.ibb.packet.DataPacketExtension; import org.jivesoftware.smackx.bytestreams.ibb.packet.Open; import org.jivesoftware.util.ConnectionUtils; import org.jivesoftware.util.Protocol; import org.jivesoftware.util.Verification; import org.junit.Before; import org.junit.Test; import org.powermock.reflect.Whitebox; /** * Test for InBandBytestreamSession. *

* Tests sending data encapsulated in message stanzas. * * @author Henning Staib */ public class InBandBytestreamSessionMessageTest { // settings String initiatorJID = "initiator@xmpp-server/Smack"; String targetJID = "target@xmpp-server/Smack"; String xmppServer = "xmpp-server"; String sessionID = "session_id"; int blockSize = 10; int dataSize = blockSize/4 * 3; // protocol verifier Protocol protocol; // mocked XMPP connection Connection connection; InBandBytestreamManager byteStreamManager; Open initBytestream; Verification incrementingSequence; /** * Initialize fields used in the tests. */ @Before public void setup() { // build protocol verifier protocol = new Protocol(); // create mocked XMPP connection connection = ConnectionUtils.createMockedConnection(protocol, initiatorJID, xmppServer); // initialize InBandBytestreamManager to get the InitiationListener byteStreamManager = InBandBytestreamManager.getByteStreamManager(connection); // create a In-Band Bytestream open packet with message stanza initBytestream = new Open(sessionID, blockSize, StanzaType.MESSAGE); initBytestream.setFrom(initiatorJID); initBytestream.setTo(targetJID); incrementingSequence = new Verification() { long lastSeq = 0; public void verify(Message request, IQ response) { DataPacketExtension dpe = (DataPacketExtension) request.getExtension( DataPacketExtension.ELEMENT_NAME, InBandBytestreamManager.NAMESPACE); assertEquals(lastSeq++, dpe.getSeq()); } }; } /** * Test the output stream write(byte[]) method. * * @throws Exception should not happen */ @Test public void shouldSendThreeDataPackets1() throws Exception { InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); // verify the data packets protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); byte[] controlData = new byte[dataSize * 3]; OutputStream outputStream = session.getOutputStream(); outputStream.write(controlData); outputStream.flush(); protocol.verifyAll(); } /** * Test the output stream write(byte) method. * * @throws Exception should not happen */ @Test public void shouldSendThreeDataPackets2() throws Exception { InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); // verify the data packets protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); byte[] controlData = new byte[dataSize * 3]; OutputStream outputStream = session.getOutputStream(); for (byte b : controlData) { outputStream.write(b); } outputStream.flush(); protocol.verifyAll(); } /** * Test the output stream write(byte[], int, int) method. * * @throws Exception should not happen */ @Test public void shouldSendThreeDataPackets3() throws Exception { InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); // verify the data packets protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); byte[] controlData = new byte[(dataSize * 3) - 2]; OutputStream outputStream = session.getOutputStream(); int off = 0; for (int i = 1; off+i <= controlData.length; i++) { outputStream.write(controlData, off, i); off += i; } outputStream.flush(); protocol.verifyAll(); } /** * Test the output stream flush() method. * * @throws Exception should not happen */ @Test public void shouldSendThirtyDataPackets() throws Exception { byte[] controlData = new byte[dataSize * 3]; InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); // verify the data packets for (int i = 0; i < controlData.length; i++) { protocol.addResponse(null, incrementingSequence); } OutputStream outputStream = session.getOutputStream(); for (byte b : controlData) { outputStream.write(b); outputStream.flush(); } protocol.verifyAll(); } /** * Test successive calls to the output stream flush() method. * * @throws Exception should not happen */ @Test public void shouldSendNothingOnSuccessiveCallsToFlush() throws Exception { byte[] controlData = new byte[dataSize * 3]; InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); // verify the data packets protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); protocol.addResponse(null, incrementingSequence); OutputStream outputStream = session.getOutputStream(); outputStream.write(controlData); outputStream.flush(); outputStream.flush(); outputStream.flush(); protocol.verifyAll(); } /** * If a data packet is received out of order the session should be closed. See XEP-0047 Section * 2.2. * * @throws Exception should not happen */ @Test public void shouldSendCloseRequestIfInvalidSequenceReceived() throws Exception { // confirm close request IQ resultIQ = IBBPacketUtils.createResultIQ(initiatorJID, targetJID); protocol.addResponse(resultIQ, Verification.requestTypeSET, Verification.correspondingSenderReceiver); // get IBB sessions data packet listener InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); InputStream inputStream = session.getInputStream(); PacketListener listener = Whitebox.getInternalState(inputStream, PacketListener.class); // build invalid packet with out of order sequence String base64Data = StringUtils.encodeBase64("Data"); DataPacketExtension dpe = new DataPacketExtension(sessionID, 123, base64Data); Message dataMessage = new Message(); dataMessage.addExtension(dpe); // add data packets listener.processPacket(dataMessage); // read until exception is thrown try { inputStream.read(); fail("exception should be thrown"); } catch (IOException e) { assertTrue(e.getMessage().contains("Packets out of sequence")); } protocol.verifyAll(); } /** * Test the input stream read(byte[], int, int) method. * * @throws Exception should not happen */ @Test public void shouldReadAllReceivedData1() throws Exception { // create random data Random rand = new Random(); byte[] controlData = new byte[3 * dataSize]; rand.nextBytes(controlData); // get IBB sessions data packet listener InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); InputStream inputStream = session.getInputStream(); PacketListener listener = Whitebox.getInternalState(inputStream, PacketListener.class); // verify data packet and notify listener for (int i = 0; i < controlData.length / dataSize; i++) { String base64Data = StringUtils.encodeBase64(controlData, i * dataSize, dataSize, false); DataPacketExtension dpe = new DataPacketExtension(sessionID, i, base64Data); Message dataMessage = new Message(); dataMessage.addExtension(dpe); listener.processPacket(dataMessage); } byte[] bytes = new byte[3 * dataSize]; int read = 0; read = inputStream.read(bytes, 0, dataSize); assertEquals(dataSize, read); read = inputStream.read(bytes, dataSize, dataSize); assertEquals(dataSize, read); read = inputStream.read(bytes, dataSize*2, dataSize); assertEquals(dataSize, read); // verify data for (int i = 0; i < bytes.length; i++) { assertEquals(controlData[i], bytes[i]); } protocol.verifyAll(); } /** * Test the input stream read() method. * * @throws Exception should not happen */ @Test public void shouldReadAllReceivedData2() throws Exception { // create random data Random rand = new Random(); byte[] controlData = new byte[3 * dataSize]; rand.nextBytes(controlData); // get IBB sessions data packet listener InBandBytestreamSession session = new InBandBytestreamSession(connection, initBytestream, initiatorJID); InputStream inputStream = session.getInputStream(); PacketListener listener = Whitebox.getInternalState(inputStream, PacketListener.class); // verify data packet and notify listener for (int i = 0; i < controlData.length / dataSize; i++) { String base64Data = StringUtils.encodeBase64(controlData, i * dataSize, dataSize, false); DataPacketExtension dpe = new DataPacketExtension(sessionID, i, base64Data); Message dataMessage = new Message(); dataMessage.addExtension(dpe); listener.processPacket(dataMessage); } // read data byte[] bytes = new byte[3 * dataSize]; for (int i = 0; i < bytes.length; i++) { bytes[i] = (byte) inputStream.read(); } // verify data for (int i = 0; i < bytes.length; i++) { assertEquals(controlData[i], bytes[i]); } protocol.verifyAll(); } }