Remove Netty entirely, using the new Nio wrapper classes instead
* BitcoinSerializer now uses ByteBuffers directly instead of
InputStreams.
* TCPNetworkConnection and NetworkConnection interface deleted,
Peer now extends the abstract class PeerSocketHandler which
handles deserialization and interfaces with the Nio wrapper
classes.
* As a part of this, all version message handling has been moved
to Peer, instead of doing it in TCPNetworkConnection.
* Peer.setMinProtocolVersion() now returns a boolean instead of a
null/non-null future which holds the now-closing channel.
* Peer.sendMessage (now PeerSocketHandler.sendMessage()) now
returns void.
* PeerGroup has some significant API changes:
* removed constructors which take pipeline factories,
makePipelineFactory, createClientBootstrap
* Replaced with a setSocketTimeoutMillis method that sets a
timeout between openConnection() and version/verack exchange.
(Note that because Peer extends AbstractTimeoutHandler, it has
useful timeout setters public already).
* connectTo returns a Peer future, not a ChannelFuture
* removed peerFromChannelFuture and peerFromChannel
* Peer and PeerGroup Tests have semi-significant rewrites:
* They use actual TCP connections to localhost
* The "remote" side is a InboundMessageQueuer, which queues
inbound messages and allows for writing arbitrary messages.
* It ignores certain special pings which come from pingAndWait,
which is used to wait for message processing in the Peer.
* Removed a broken test in PeerGroupTest that should be reenabled
if we ever prefer a different version than our minimum version
again.
* Removed two duplicate tests in PeerTest (testRun_*Exception)
which are tested for in badMessage as well.
* Added a test for peer timeout and large message deserialization
Author: Matt Corallo <git@bluematt.me>
If there's insufficient balance (typical error) then InsufficientMoneyException is thrown (checked).
If the SendRequest is bad in some way, like asking to create a spend that would violate the protocol rules, IllegalArgumentException is thrown (unchecked).
Also make VerificationException (and thus ProtocolException+ScriptException) unchecked.
Resolves issue 425.
Disable signature checking in ChannelTest to make it run faster, especially in the debugger, and bump timeouts so client/server don't timeout when debugging.
Now connects all inputs of an overriding transaction, meaning balance is correct if a bit-tweaked but semantically identical transaction double spends its shadow (e.g. during key rotation on a cloned device).
Still does not recursively kill transactions however.
Resolves issue 439.
This is a (backwards incompatible) protocol change that prevents clients or servers getting into a situation where they have opened a channel that they then cannot close because insufficient value has been transferred.
The server is allowed to specify the minimum payment it requires in order to open any channel at all, and the client then sanity checks that. Currently the rule is very simple - the min payment must be equal to the hard-coded dust limit. In future it will get more complicated as the dust limit starts to float and a more nuanced risk analysis may become required.
The previous overloading of the term "close" to mean both settlement of the channel (broadcast of the final payment tx) and terminating/cleaning up the underlying network connection was very confusing and made the code harder to work with. The notion of "closing" a protocol that is often embedded inside others isn't really well defined, so there's perhaps more work to do here, but this change makes the code easier to follow and is basically a big pile of no-ops.
Extract out the "is time locked" risk analysis code to a pluggable implementation.
Ensure the default implementation has 100% test coverage.
Consider finality, not merely the presence of a lock time, when judging risk.
Don't consider a tx risky if it would become final in the next block.
Do not consider self-created transactions risky.
