private void multisigContractPropogated(
Protos.ProvideContract providedContract, Sha256Hash contractHash) {
lock.lock();
try {
if (!connectionOpen || channelSettling) return;
state.storeChannelInWallet(PaymentChannelServer.this);
try {
receiveUpdatePaymentMessage(providedContract.getInitialPayment(), false /* no ack msg */);
} catch (VerificationException e) {
log.error("Initial payment failed to verify", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
return;
} catch (ValueOutOfRangeException e) {
log.error("Initial payment value was out of range", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
return;
} catch (InsufficientMoneyException e) {
// This shouldn't happen because the server shouldn't allow itself to get into this
// situation in the
// first place, by specifying a min up front payment.
log.error(
"Tried to settle channel and could not afford the fees whilst updating payment", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
return;
}
conn.sendToClient(
Protos.TwoWayChannelMessage.newBuilder()
.setType(Protos.TwoWayChannelMessage.MessageType.CHANNEL_OPEN)
.build());
step = InitStep.CHANNEL_OPEN;
conn.channelOpen(contractHash);
} finally {
lock.unlock();
}
}
/**
* Called when a message is received from the client. Processes the given message and generates
* events based on its content.
*/
public void receiveMessage(Protos.TwoWayChannelMessage msg) {
lock.lock();
try {
checkState(connectionOpen);
if (channelSettling) return;
// If we generate an error, we set errorBuilder and closeReason and break, otherwise we return
Protos.Error.Builder errorBuilder;
CloseReason closeReason;
try {
switch (msg.getType()) {
case CLIENT_VERSION:
receiveVersionMessage(msg);
return;
case PROVIDE_REFUND:
receiveRefundMessage(msg);
return;
case PROVIDE_CONTRACT:
receiveContractMessage(msg);
return;
case UPDATE_PAYMENT:
checkState(step == InitStep.CHANNEL_OPEN && msg.hasUpdatePayment());
receiveUpdatePaymentMessage(msg.getUpdatePayment(), true);
return;
case CLOSE:
receiveCloseMessage();
return;
case ERROR:
checkState(msg.hasError());
log.error(
"Client sent ERROR {} with explanation {}",
msg.getError().getCode().name(),
msg.getError().hasExplanation() ? msg.getError().getExplanation() : "");
conn.destroyConnection(CloseReason.REMOTE_SENT_ERROR);
return;
default:
final String errorText =
"Got unknown message type or type that doesn't apply to servers.";
error(
errorText,
Protos.Error.ErrorCode.SYNTAX_ERROR,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
}
} catch (VerificationException e) {
log.error("Caught verification exception handling message from client", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
} catch (ValueOutOfRangeException e) {
log.error("Caught value out of range exception handling message from client", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
} catch (InsufficientMoneyException e) {
log.error("Caught insufficient money exception handling message from client", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.BAD_TRANSACTION,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
} catch (IllegalStateException e) {
log.error("Caught illegal state exception handling message from client", e);
error(
e.getMessage(),
Protos.Error.ErrorCode.SYNTAX_ERROR,
CloseReason.REMOTE_SENT_INVALID_MESSAGE);
}
} finally {
lock.unlock();
}
}