@Override
protected OpenFuture doInit(Buffer buffer) {
OpenFuture f = new DefaultOpenFuture(this);
try {
out =
new ChannelOutputStream(
this, getRemoteWindow(), log, SshConstants.SSH_MSG_CHANNEL_DATA, true);
authSocket = PropertyResolverUtils.getString(this, SshAgent.SSH_AUTHSOCKET_ENV_NAME);
pool = Pool.create(AprLibrary.getInstance().getRootPool());
handle = Local.create(authSocket, pool);
int result = Local.connect(handle, 0);
if (result != Status.APR_SUCCESS) {
throwException(result);
}
ExecutorService service = getExecutorService();
forwardService =
(service == null)
? ThreadUtils.newSingleThreadExecutor("ChannelAgentForwarding[" + authSocket + "]")
: service;
shutdownForwarder = service != forwardService || isShutdownOnExit();
final int copyBufSize =
PropertyResolverUtils.getIntProperty(
this, FORWARDER_BUFFER_SIZE, DEFAULT_FORWARDER_BUF_SIZE);
ValidateUtils.checkTrue(
copyBufSize >= MIN_FORWARDER_BUF_SIZE, "Copy buf size below min.: %d", copyBufSize);
ValidateUtils.checkTrue(
copyBufSize <= MAX_FORWARDER_BUF_SIZE, "Copy buf size above max.: %d", copyBufSize);
forwarder =
forwardService.submit(
() -> {
try {
byte[] buf = new byte[copyBufSize];
while (true) {
int len = Socket.recv(handle, buf, 0, buf.length);
if (len > 0) {
out.write(buf, 0, len);
out.flush();
}
}
} catch (IOException e) {
close(true);
}
});
signalChannelOpenSuccess();
f.setOpened();
} catch (Throwable t) {
Throwable e = GenericUtils.peelException(t);
signalChannelOpenFailure(e);
f.setException(e);
}
return f;
}
protected void checkConfig() {
ValidateUtils.checkNotNullAndNotEmpty(
getKeyExchangeFactories(), "KeyExchangeFactories not set");
if (getScheduledExecutorService() == null) {
setScheduledExecutorService(
ThreadUtils.newSingleThreadScheduledExecutor(this.toString() + "-timer"), true);
}
ValidateUtils.checkNotNullAndNotEmpty(getCipherFactories(), "CipherFactories not set");
ValidateUtils.checkNotNullAndNotEmpty(
getCompressionFactories(), "CompressionFactories not set");
ValidateUtils.checkNotNullAndNotEmpty(getMacFactories(), "MacFactories not set");
ValidateUtils.checkNotNull(getRandomFactory(), "RandomFactory not set");
if (getIoServiceFactoryFactory() == null) {
setIoServiceFactoryFactory(new DefaultIoServiceFactoryFactory());
}
}
static Provider createProviderInstance(Class<?> anchor, String providerClassName)
throws ReflectiveOperationException {
return ThreadUtils.createDefaultInstance(anchor, Provider.class, providerClassName);
}