@Test
public void testDecodingFileWithBufferedSessionData() throws Exception {
final ReadableByteChannel channel =
new ReadableByteChannelMock(
new String[] {"stuff; ", "more stuff; ", "a lot more stuff!"}, Consts.ASCII);
final SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 256, Consts.ASCII);
final HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
final IdentityDecoder decoder = new IdentityDecoder(channel, inbuf, metrics);
final int i = inbuf.fill(channel);
Assert.assertEquals(7, i);
createTempFile();
final RandomAccessFile testfile = new RandomAccessFile(this.tmpfile, "rw");
try {
final FileChannel fchannel = testfile.getChannel();
long pos = 0;
while (!decoder.isCompleted()) {
final long bytesRead = decoder.transfer(fchannel, pos, 10);
if (bytesRead > 0) {
pos += bytesRead;
}
}
// count everything except the initial 7 bytes that went to the session buffer
Assert.assertEquals(testfile.length() - 7, metrics.getBytesTransferred());
} finally {
testfile.close();
}
Assert.assertEquals(
"stuff; more stuff; a lot more stuff!", CodecTestUtils.readFromFile(this.tmpfile));
}
@Test
public void testDecodingFromSessionBuffer() throws Exception {
final ReadableByteChannel channel =
new ReadableByteChannelMock(new String[] {"stuff;", "more stuff"}, Consts.ASCII);
final SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 256, Consts.ASCII);
final HttpTransportMetricsImpl metrics = new HttpTransportMetricsImpl();
inbuf.fill(channel);
Assert.assertEquals(6, inbuf.length());
final IdentityDecoder decoder = new IdentityDecoder(channel, inbuf, metrics);
final ByteBuffer dst = ByteBuffer.allocate(1024);
int bytesRead = decoder.read(dst);
Assert.assertEquals(6, bytesRead);
Assert.assertEquals("stuff;", CodecTestUtils.convert(dst));
Assert.assertFalse(decoder.isCompleted());
Assert.assertEquals(0, metrics.getBytesTransferred()); // doesn't count if from session buffer
dst.clear();
bytesRead = decoder.read(dst);
Assert.assertEquals(10, bytesRead);
Assert.assertEquals("more stuff", CodecTestUtils.convert(dst));
Assert.assertFalse(decoder.isCompleted());
Assert.assertEquals(10, metrics.getBytesTransferred());
dst.clear();
bytesRead = decoder.read(dst);
Assert.assertEquals(-1, bytesRead);
Assert.assertTrue(decoder.isCompleted());
Assert.assertEquals(10, metrics.getBytesTransferred());
dst.clear();
bytesRead = decoder.read(dst);
Assert.assertEquals(-1, bytesRead);
Assert.assertTrue(decoder.isCompleted());
Assert.assertEquals(10, metrics.getBytesTransferred());
}
@Override
public void consumeData(final IOSession iosession, final ServerState sessionState)
throws IOException, SMTPProtocolException {
Args.notNull(iosession, "IO session");
Args.notNull(sessionState, "Session state");
SessionInputBuffer buf = this.iobuffers.getInbuf();
synchronized (sessionState) {
for (; ; ) {
int bytesRead = buf.fill(iosession.channel());
try {
SMTPCommand command = this.parser.parse(buf, bytesRead == -1);
if (command == null) {
if (bytesRead == -1 && !sessionState.isTerminated() && this.pendingActions.isEmpty()) {
throw new UnexpectedEndOfStreamException();
} else {
break;
}
}
Action<ServerState> action = this.commandHandler.handle(command);
this.pendingActions.add(action);
} catch (SMTPErrorException ex) {
SMTPReply reply = new SMTPReply(ex.getCode(), ex.getEnhancedCode(), ex.getMessage());
this.pendingActions.add(new SimpleAction(reply));
} catch (SMTPProtocolException ex) {
SMTPReply reply =
new SMTPReply(
SMTPCodes.ERR_PERM_SYNTAX_ERR_COMMAND, new SMTPCode(5, 3, 0), ex.getMessage());
this.pendingActions.add(new SimpleAction(reply));
}
}
if (!this.pendingActions.isEmpty()) {
iosession.setEvent(SelectionKey.OP_WRITE);
}
}
}
@Override
public void consumeData(final IOSession iosession, final ClientState sessionState)
throws IOException, SMTPProtocolException {
Args.notNull(iosession, "IO session");
Args.notNull(sessionState, "Session state");
SessionInputBuffer buf = this.iobuffers.getInbuf();
int bytesRead = buf.fill(iosession.channel());
SMTPReply reply = this.parser.parse(buf, bytesRead == -1);
if (reply != null) {
switch (this.codecState) {
case SERVICE_READY_EXPECTED:
if (reply.getCode() == SMTPCodes.SERVICE_READY) {
this.codecState = CodecState.EHLO_READY;
iosession.setEvent(SelectionKey.OP_WRITE);
} else {
this.codecState = CodecState.COMPLETED;
sessionState.setReply(reply);
}
break;
case EHLO_RESPONSE_EXPECTED:
if (reply.getCode() == SMTPCodes.OK) {
Set<String> extensions = sessionState.getExtensions();
List<String> lines = reply.getLines();
if (lines.size() > 1) {
for (int i = 1; i < lines.size(); i++) {
String line = lines.get(i);
extensions.add(line.toUpperCase(Locale.US));
}
}
this.codecState = CodecState.COMPLETED;
sessionState.setReply(reply);
} else if (reply.getCode() == SMTPCodes.ERR_PERM_SYNTAX_ERR_COMMAND) {
this.codecState = CodecState.HELO_READY;
iosession.setEvent(SelectionKey.OP_WRITE);
} else {
this.codecState = CodecState.COMPLETED;
sessionState.setReply(reply);
}
break;
case HELO_RESPONSE_EXPECTED:
this.codecState = CodecState.COMPLETED;
sessionState.setReply(reply);
break;
default:
if (reply.getCode() == SMTPCodes.ERR_TRANS_SERVICE_NOT_AVAILABLE) {
sessionState.setReply(reply);
this.codecState = CodecState.COMPLETED;
} else {
throw new SMTPProtocolException("Unexpected reply: " + reply);
}
}
} else {
if (bytesRead == -1 && !sessionState.isTerminated()) {
throw new UnexpectedEndOfStreamException();
}
}
}