Github user laurentgo commented on a diff in the pull request:
https://github.com/apache/drill/pull/578#discussion_r102348994
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/rpc/user/UserServer.java ---
@@ -358,25 +291,59 @@ public BitToUserHandshake
getHandshakeResponse(UserToBitHandshake inbound) throw
return handleFailure(respBuilder,
HandshakeStatus.RPC_VERSION_MISMATCH, errMsg, null);
}
- if (authenticator != null) {
+ connection.setHandshake(inbound);
+
+ if (!config.isAuthEnabled()) {
+
connection.finalizeSession(inbound.getCredentials().getUserName());
+ respBuilder.setStatus(HandshakeStatus.SUCCESS);
+ return respBuilder.build();
+ }
+
+ final boolean clientSupportsSasl = inbound.hasSaslSupport() &&
+ (inbound.getSaslSupport().ordinal() >=
SaslSupport.SASL_AUTH.ordinal());
+ if (!clientSupportsSasl) { // for backward compatibility < 1.10
+ final String userName = inbound.getCredentials().getUserName();
+ if (logger.isTraceEnabled()) {
+ logger.trace("User {} on connection {} is likely using an
older client.",
+ userName, connection.getRemoteAddress());
+ }
try {
String password = "";
final UserProperties props = inbound.getProperties();
for (int i = 0; i < props.getPropertiesCount(); i++) {
Property prop = props.getProperties(i);
- if (UserSession.PASSWORD.equalsIgnoreCase(prop.getKey())) {
+ if
(DrillProperties.PASSWORD.equalsIgnoreCase(prop.getKey())) {
password = prop.getValue();
break;
}
}
-
authenticator.authenticate(inbound.getCredentials().getUserName(), password);
+ final PlainFactory plainFactory =
config.getAuthProvider().getPlainFactory();
+ if (plainFactory == null) {
+ throw new UserAuthenticationException("The server no
longer supports username/password" +
+ " based authentication. Please talk to your system
administrator.");
+ }
+ plainFactory.getAuthenticator()
+ .authenticate(userName, password);
+ connection.changeHandlerTo(config.getMessageHandler());
+ connection.finalizeSession(userName);
+ respBuilder.setStatus(HandshakeStatus.SUCCESS);
+ if (logger.isTraceEnabled()) {
+ logger.trace("Authenticated {} successfully using PLAIN
from {}", userName,
+ connection.getRemoteAddress());
+ }
+ return respBuilder.build();
} catch (UserAuthenticationException ex) {
return handleFailure(respBuilder,
HandshakeStatus.AUTH_FAILED, ex.getMessage(), ex);
}
}
- connection.setUser(inbound);
- return respBuilder.setStatus(HandshakeStatus.SUCCESS).build();
+ // mention server's authentication capabilities
+
respBuilder.addAllAuthenticationMechanisms(config.getAuthProvider().getAllFactoryNames());
+
+ // for now, this means PLAIN credentials will be sent over twice
--- End diff --
just a thought if this is something you're worried about. What prevents the
server to detect the plain credentials from the user, and try to perform the
authentication directly (if plain is supported)?
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