/**
* @param channel
* @param eventListener
* @return
* @throws IOException
* @throws SshException
*/
public synchronized boolean openChannel(Channel channel, ChannelEventListener eventListener)
throws IOException {
synchronized (activeChannels) {
Long channelId = getChannelId();
// Create the message
SshMsgChannelOpen msg =
new SshMsgChannelOpen(
channel.getChannelType(),
channelId.longValue(),
channel.getLocalWindow().getWindowSpace(),
channel.getLocalPacketSize(),
channel.getChannelOpenData());
// Send the message
transport.sendMessage(msg, this);
// Wait for the next message to confirm the open channel (or not)
int[] messageIdFilter = new int[2];
messageIdFilter[0] = SshMsgChannelOpenConfirmation.SSH_MSG_CHANNEL_OPEN_CONFIRMATION;
messageIdFilter[1] = SshMsgChannelOpenFailure.SSH_MSG_CHANNEL_OPEN_FAILURE;
try {
SshMessage result = messageStore.getMessage(messageIdFilter);
if (result.getMessageId()
== SshMsgChannelOpenConfirmation.SSH_MSG_CHANNEL_OPEN_CONFIRMATION) {
SshMsgChannelOpenConfirmation conf = (SshMsgChannelOpenConfirmation) result;
activeChannels.put(channelId, channel);
log.debug("Initiating channel");
channel.init(
this,
channelId.longValue(),
conf.getSenderChannel(),
conf.getInitialWindowSize(),
conf.getMaximumPacketSize(),
eventListener);
channel.open();
log.info(
"Channel "
+ String.valueOf(channel.getLocalChannelId())
+ " is open ["
+ channel.getName()
+ "]");
return true;
} else {
// Make sure the channels state is closed
channel.getState().setValue(ChannelState.CHANNEL_CLOSED);
return false;
}
} catch (MessageStoreEOFException mse) {
throw new IOException(mse.getMessage());
} catch (InterruptedException ex) {
throw new SshException(
"The thread was interrupted whilst waiting for a connection protocol message");
}
}
}
/**
* @param persoLevel - Mettre 0 si on ne veut pas prendre en compte les limitations de range de
* niveau.
* @param state - L'état du channel de combat (Preparing, Active, Looting)
* @return
*/
public StringBuilder getChannelsList(int persoLevel, byte state) {
StringBuilder sb =
new StringBuilder(channels.size() * 10); // jai mit 10 completement au hasard, à refaire.
for (Channel c : channels.values()) {
if (c.getState() == state) {
if (persoLevel == 0 || c.getLevelMin() <= persoLevel && c.getLevelMax() >= persoLevel) {
if (sb.length() != 0) {
sb.append("|");
}
sb.append(c.toString());
}
}
}
return sb;
}
/**
* @param channel
* @param data
* @throws IOException
*/
public synchronized void sendChannelData(Channel channel, byte[] data) throws IOException {
synchronized (channel.getState()) {
if (log.isDebugEnabled()) {
log.debug(
"Sending "
+ String.valueOf(data.length)
+ " bytes for channel id "
+ String.valueOf(channel.getLocalChannelId()));
}
int sent = 0;
int block;
int remaining;
long max;
byte[] buffer;
ChannelDataWindow window = channel.getRemoteWindow();
while (sent < data.length) {
remaining = data.length - sent;
max =
((window.getWindowSpace() < channel.getRemotePacketSize())
&& (window.getWindowSpace() > 0))
? window.getWindowSpace()
: channel.getRemotePacketSize();
block = (max < remaining) ? (int) max : remaining;
channel.remoteWindow.consumeWindowSpace(block);
buffer = new byte[block];
System.arraycopy(data, sent, buffer, 0, block);
SshMsgChannelData msg = new SshMsgChannelData(channel.getRemoteChannelId(), buffer);
transport.sendMessage(msg, this);
/* if (type != null) {
channel.sendChannelExtData(type.intValue(), buffer);
} else {
channel.sendChannelData(buffer);
}*/
sent += block;
}
}
}
private void onMsgChannelClose(SshMsgChannelClose msg) throws IOException {
Channel channel = getChannel(msg.getRecipientChannel());
// If we have not already closed it then inform the subclasses
if (channel == null) {
throw new IOException(
"Remote computer tried to close a "
+ "non existent channel "
+ String.valueOf(msg.getRecipientChannel()));
}
log.info(
"Remote computer has closed channel "
+ String.valueOf(channel.getLocalChannelId())
+ "["
+ channel.getName()
+ "]");
// If the channel is not already closed then close it
if (channel.getState().getValue() != ChannelState.CHANNEL_CLOSED) {
channel.remoteClose();
}
}
