/**
* Handles a GMS header
*
* @param gms_hdr
* @param msg
* @return true if the message should be passed up, or else false
*/
protected boolean handleAuthHeader(GMS.GmsHeader gms_hdr, AuthHeader auth_hdr, Message msg) {
switch (gms_hdr.getType()) {
case GMS.GmsHeader.JOIN_REQ:
case GMS.GmsHeader.JOIN_REQ_WITH_STATE_TRANSFER:
case GMS.GmsHeader.MERGE_REQ:
if (this.auth_token.authenticate(auth_hdr.getToken(), msg))
return true; // authentication passed, send message up the stack
log.warn(
"failed to validate AuthHeader token from " + msg.getSrc() + ", token: " + auth_token);
sendRejectionMessage(gms_hdr.getType(), msg.getSrc(), "authentication failed");
return false;
default:
return true; // pass up
}
}
/**
* Handles a GMS header
*
* @param gms_hdr
* @param msg
* @return true if the message should be passed up, or else false
*/
protected boolean handleAuthHeader(GMS.GmsHeader gms_hdr, AuthHeader auth_hdr, Message msg) {
if (needsAuthentication(gms_hdr)) {
if (this.auth_token.authenticate(auth_hdr.getToken(), msg))
return true; // authentication passed, send message up the stack
else {
log.warn(
"%s: failed to validate AuthHeader (token: %s) from %s; dropping message",
local_addr, auth_token.getClass().getSimpleName(), msg.src());
sendRejectionMessage(gms_hdr.getType(), msg.getSrc(), "authentication failed");
return false;
}
}
return true;
}
protected boolean needsAuthentication(GMS.GmsHeader hdr) {
switch (hdr.getType()) {
case GMS.GmsHeader.JOIN_REQ:
case GMS.GmsHeader.JOIN_REQ_WITH_STATE_TRANSFER:
case GMS.GmsHeader.MERGE_REQ:
return true;
case GMS.GmsHeader.JOIN_RSP:
case GMS.GmsHeader.MERGE_RSP:
case GMS.GmsHeader.INSTALL_MERGE_VIEW:
return this.authenticate_coord;
default:
return false;
}
}
public void up(MessageBatch batch) {
for (Message msg : batch) {
// If we have a join or merge request --> authenticate, else pass up
GMS.GmsHeader gms_hdr = getGMSHeader(msg);
if (gms_hdr != null && needsAuthentication(gms_hdr)) {
AuthHeader auth_hdr = (AuthHeader) msg.getHeader(id);
if (auth_hdr == null) {
log.warn("found GMS join or merge request but no AUTH header");
sendRejectionMessage(
gms_hdr.getType(), batch.sender(), "join or merge without an AUTH header");
batch.remove(msg);
} else if (!handleAuthHeader(gms_hdr, auth_hdr, msg)) // authentication failed
batch.remove(msg); // don't pass up
}
}
if (!batch.isEmpty()) up_prot.up(batch);
}
protected static boolean needsAuthentication(GMS.GmsHeader hdr) {
return hdr.getType() == GMS.GmsHeader.JOIN_REQ
|| hdr.getType() == GMS.GmsHeader.JOIN_REQ_WITH_STATE_TRANSFER
|| hdr.getType() == GMS.GmsHeader.MERGE_REQ;
}