import org.opendaylight.netconf.shaded.sshd.client.channel.ClientChannel;
import org.opendaylight.netconf.shaded.sshd.client.future.AuthFuture;
import org.opendaylight.netconf.shaded.sshd.client.future.ConnectFuture;
+import org.opendaylight.netconf.shaded.sshd.client.future.OpenFuture;
import org.opendaylight.netconf.shaded.sshd.client.session.ClientSession;
import org.opendaylight.netconf.shaded.sshd.core.CoreModuleProperties;
import org.slf4j.Logger;
negotiationFuture);
}
- private synchronized void handleSshSessionCreated(final ConnectFuture future, final ChannelHandlerContext ctx) {
- try {
- LOG.trace("SSH session created on channel: {}", ctx.channel());
-
- session = future.getSession();
- verify(session instanceof NettyAwareClientSession, "Unexpected session %s", session);
-
- final AuthFuture authenticateFuture = authenticationHandler.authenticate(session);
- final NettyAwareClientSession localSession = (NettyAwareClientSession) session;
- authenticateFuture.addListener(future1 -> {
- if (future1.isSuccess()) {
- handleSshAuthenticated(localSession, ctx);
- } else {
- handleSshSetupFailure(ctx, new AuthenticationFailedException("Authentication failed",
- future1.getException()));
- }
- });
- } catch (final IOException e) {
- handleSshSetupFailure(ctx, e);
- }
- }
-
- private synchronized void handleSshAuthenticated(final NettyAwareClientSession newSession,
- final ChannelHandlerContext ctx) {
- LOG.debug("SSH session authenticated on channel: {}, server version: {}", ctx.channel(),
- newSession.getServerVersion());
-
- try {
- channel = newSession.createSubsystemChannel(SUBSYSTEM, ctx);
- channel.setStreaming(ClientChannel.Streaming.Async);
- channel.open().addListener(future -> {
- if (future.isOpened()) {
- handleSshChanelOpened(ctx);
- } else {
- handleSshSetupFailure(ctx, future.getException());
- }
- });
- } catch (final IOException e) {
- handleSshSetupFailure(ctx, e);
- }
- }
-
- private synchronized void handleSshChanelOpened(final ChannelHandlerContext ctx) {
- LOG.trace("SSH subsystem channel opened successfully on channel: {}", ctx.channel());
-
- if (negotiationFuture == null) {
- connectPromise.setSuccess();
- }
-
- sshWriteAsyncHandler = new AsyncSshHandlerWriter(channel.getAsyncIn());
- ctx.fireChannelActive();
- channel.onClose(() -> disconnect(ctx, ctx.newPromise()));
- }
-
- private synchronized void handleSshSetupFailure(final ChannelHandlerContext ctx, final Throwable error) {
- LOG.warn("Unable to setup SSH connection on channel: {}", ctx.channel(), error);
-
- // If the promise is not yet done, we have failed with initial connect and set connectPromise to failure
- if (!connectPromise.isDone()) {
- connectPromise.setFailure(error);
- }
-
- disconnect(ctx, ctx.newPromise());
- }
-
@Override
public synchronized void write(final ChannelHandlerContext ctx, final Object msg, final ChannelPromise promise) {
sshWriteAsyncHandler.write(ctx, msg, promise);
private void onConnectComplete(final ConnectFuture future, final ChannelHandlerContext ctx) {
final var cause = future.getException();
if (cause != null) {
- handleSshSetupFailure(ctx, cause);
+ onOpenFailure(ctx, cause);
+ return;
+ }
+
+ final var clientSession = future.getSession();
+ LOG.trace("SSH session {} created on channel: {}", clientSession, ctx.channel());
+ verify(clientSession instanceof NettyAwareClientSession, "Unexpected session %s", clientSession);
+ onConnectComplete((NettyAwareClientSession) clientSession, ctx);
+ }
+
+ private synchronized void onConnectComplete(final NettyAwareClientSession clientSession,
+ final ChannelHandlerContext ctx) {
+ session = clientSession;
+
+ final AuthFuture authFuture;
+ try {
+ authFuture = authenticationHandler.authenticate(clientSession);
+ } catch (final IOException e) {
+ onOpenFailure(ctx, e);
return;
}
- handleSshSessionCreated(future, ctx);
+ authFuture.addListener(future -> onAuthComplete(future, clientSession, ctx));
+ }
+
+ private void onAuthComplete(final AuthFuture future, final NettyAwareClientSession clientSession,
+ final ChannelHandlerContext ctx) {
+ final var cause = future.getException();
+ if (cause != null) {
+ onOpenFailure(ctx, new AuthenticationFailedException("Authentication failed", cause));
+ return;
+ }
+
+ onAuthComplete(clientSession, ctx);
+ }
+
+ private synchronized void onAuthComplete(final NettyAwareClientSession clientSession,
+ final ChannelHandlerContext ctx) {
+ LOG.debug("SSH session authenticated on channel: {}, server version: {}", ctx.channel(),
+ clientSession.getServerVersion());
+
+ final OpenFuture openFuture;
+ try {
+ channel = clientSession.createSubsystemChannel(SUBSYSTEM, ctx);
+ channel.setStreaming(ClientChannel.Streaming.Async);
+ openFuture = channel.open();
+ } catch (final IOException e) {
+ onOpenFailure(ctx, e);
+ return;
+ }
+
+ openFuture.addListener(future -> onOpenComplete(future, ctx));
+ }
+
+ private void onOpenComplete(final OpenFuture future, final ChannelHandlerContext ctx) {
+ final var cause = future.getException();
+ if (cause != null) {
+ onOpenFailure(ctx, cause);
+ return;
+ }
+
+ onOpenComplete(ctx);
+ }
+
+ private synchronized void onOpenComplete(final ChannelHandlerContext ctx) {
+ LOG.trace("SSH subsystem channel opened successfully on channel: {}", ctx.channel());
+
+ if (negotiationFuture == null) {
+ connectPromise.setSuccess();
+ }
+
+ sshWriteAsyncHandler = new AsyncSshHandlerWriter(channel.getAsyncIn());
+ ctx.fireChannelActive();
+ channel.onClose(() -> disconnect(ctx, ctx.newPromise()));
+ }
+
+ private synchronized void onOpenFailure(final ChannelHandlerContext ctx, final Throwable cause) {
+ LOG.warn("Unable to setup SSH connection on channel: {}", ctx.channel(), cause);
+
+ // If the promise is not yet done, we have failed with initial connect and set connectPromise to failure
+ if (!connectPromise.isDone()) {
+ connectPromise.setFailure(cause);
+ }
+
+ disconnect(ctx, ctx.newPromise());
}
@Override
Code Review / netconf.git / blobdiff