Added a finer-grained result (enum) to synchronization to replace
stark boolean result. This allows Controller to decide whether
peer can be retried in the next round (e.g. network issue) or
cooled off for an hour (e.g. peer way too far behind)
Fixed bug with wrong UPDATE_GROUP serialized transaction length.
Added logging to BlockMessage when deserialization to help catch
future bugs.
Restrict synchronizer to only consider peers at most 60 blocks behind.
Synchronizer will only process a batch of 200 blocks at a time.
Improve debugging message in Peer.
Checking interval increased from 5 seconds to 5 minutes.
(Reduces repeated fails).
System tray icon should show message just prior to applying downloaded update.
AutoUpdate needs separate logfiles for its process as
log4j2's rolling appender doesn't support locking.
So we create AU_LOGGER in AutoUpdate and set it up
using static { } block.
Added support for starting/querying/stopping auto-update
Windows service.
Changed Controller's public connectionUrl field to
getRepositoryUrl() public static method so it
can incorporate repositoryPath from Settings.
Controller has added support for auto-update on startup.
Fix bugs with Settings not using userPath properly.
Removed obsolete standalone binary classes:
* blockgenerator
* txhex
* v1feeder
Various fixes to synchronization
Added missing code for processing incoming block summaries in Network.
Fixed block summaries serialization and removed references to BlockData.
Fixed bug in transaction transformation where base transaction length
didn't include reference or fee lengths.
Original commit was ebbab7b
API /addresses/{address} now returns lastReference taking unconfirmed into account.
Added DELETE /peers/known to remove all known peers from repository.
Added blockchain locking around Transaction methods like isValidUnconfirmed
as they (temporarily) update account lastReference.
Ditto getInvalidTransactions, etc.
Added /addresses/proxying to find proxy forging mappings.
Added /addresses/proxykey/{genprivkey}/{recipientpubkey} to calculate proxy private key.
New Block.regenerate factory method to create new Blocks
but without having to reprocess ATs, etc.
Added support for proxied generator in Block.calcGeneratorsTarget
BlockGenerator now generates and checks new blocks for various generators,
including proxy generators.
BlockGenerator now uses generator private keys supplied by Settings.
Corresponding changes to Settings to load base58-encoded private keys.
+ minor stuff
log4j2.properties now has debugging entries removed.
log4j2-test.properties (not in repo) takes priority
so using that in development instead.
Unconfirmed transactions no longer wiped on start-up
by default - see Settings
Reworking of {Public,Private,Genesis}Accounts as it seemed
possible to silently lose public key in repository.
The use of AccountData didn't work and so field-specific
repository calls have been made instead
(e.g. setLastReference) that try to opportunistically
store public key too, if available (i.e. caller is
PublicKeyAccount subclass, or better).
Added API call GET /addresses/{address} to return
general account info in one go. (Essentially the
AccountData object as fetched from repository).
Initial work on adding default groupID to accounts,
along with corresponding SET_GROUP transaction type.
In additional, added blockchain-wide default groupID
and flag to allow/disallow no-group/groupless
transactions.
Initial work on group-admin approval of transactions
tied to a specific group via txGroupId.
More work needed on transaction's "effective txGroupId"!
API call /transactions/pending to list transactions
pending group-admin approval. However, this needs more
work (see effective txGroupId above) and potentially
offloading to HSQLDB repository if possible.
Minor CIYAM AT renames to help static reflection initializers.
Block.orphan() no longer adds orphaned transactions back to
unconfirmed pile as they are themselves deleted during
Transaction.orphan(). Maybe the answer is to NOT delete
them during Transaction.orphan() but to add them to
unconfirmed pile at that point? Very old transactions
leftover from major resync would simply expire, whereas
recently transactions leftover from minor resync could
still make it into a new block on synced chain fork.
Changes/tidying/improvements to block generator regarding
removing invalid transactions and dealing with transactions
pending group approval.
Approval threshold added to groups.
Mass refactoring of transaction-related classes to unify
constructors, particularly field ordering, to fall in line
with raw transaction layout.
e.g. constructors now reflect that raw transactions mostly
start with type, timestamp, txGroupId, publicKey, reference
e.g. JAXB afterUnmarshal methods added where needed and corresponding
nasty code in Transaction subclass constructors ripped out.
e.g. TransactionTransformer subclasses contain less duplicated code.
Fixed bug with repository save points thanks to swapping to Deque.
Some fixes to do with missing transaction types being passed to JAXB
TransactionData subclass constructors.
Ripped out obsolete toJSON in TransactionTransformers as this
is all nicely taken care of by Swagger/OpenAPI (thanks @Kc)
Added short sleep() to GET /admin/stop to allow time for HTTP response body to be sent back.
Improved documentation for /peers API resources. Added examples, tidied API output models.
Fixed issue where IPv6 literals with port couldn't be parsed. Now uses RFC5952/RFC3986 style
literal IPv6 addresses with ports, e.g. [::1]:9084
Fixed NPE in Controller.potentiallySynchronize() where peer might not have sent height yet.
Improved Handshake to discard inbound connections if we already have an outbound connection
to a peer with that ID. This prevents us from having two connections to the same peer, one
in each direction.
Network.mergePeers() now runs in a separate thread as acquiring the lock might block.
Network.creationConnection() exits fast based on number of outbound connections, instead of
number of total connections.
Network no longer sends 'local' peer addresses to non-local peers.
e.g. it won't send localhost:9084 to node4.qora.org:9084
Added try-catch to Network.broadcast for when we try to broadcast while shutting down.
Added PeerAddress class to deal with the whole hostname/IPv4/IPv6 address situation.
Reworked PEERS_V2 message type to only send sized-strings instead of separate port,
and potentially IPv6 byte arrays.
Change to HSQLDB database shape.
Corresponding changes to HSQLDBNetworkRepository.
Peers now broadcast height after successful synchronization.
Added support for sending unconfirmed transactions to other peers.
This is done on connect and also after a new unconfirmed transaction is submitted via API.
Fixed synchronizer to handle blocks with transactions correctly.
Fixed network-related PoW to not use class-global SHA256 message digester!
(It was being corrupted by simulataneous access by different threads - whoops)
Surrounded Network.mergePeers with a lock to prevent HSQLDB deadlocks.
Also changed HSQLDB concurrency model to MVCC (only takes effect if DB rebuilt).
Added support for logging other HSQLDB sessions in the event of exception.
(Currently only used by HSQLDBSaver)
Transaction transformer modifications to help deserialize TransactionMessages.
Some pom.xml changes to reduce maven-shade-plugin conflicting classes warnings.
Repository now supports SAVEPOINT and ROLLBACK TO SAVEPOINT.
HSQLDB concurrency/transaction model changed from LOCKS to MVCC to help with
transaction deadlocks/rollbacks.
More XXXs and TODOs added to Block.java for investigation/fix/improvements.
Also used new repository SAVEPOINT feature when validating transactions
instead of rolling back entire transaction. This fixes problem during
synchronization where the rollback would undo previously synchronized,
but not yet committed, blocks!
Transactions orphaned by Block.orphan ARE now added to unconfirmed pile,
unlike before.
Concurrent lock now prevents simultaneous block generation and synchronization,
including synchronization via multiple peers.
Lots of new networking code: peer lists, block signatures, blocks,
blockchain synchronization.
PEERS_V2 message now supports hostnames, IPv6 and port numbers.
Fixed bug with block serialization for transport over network.
DB shape change from v29 to add peer info.
New NetworkRepository to handle above.
Peer handshaking with v2 anti-DoS PoW code.
Handshaking refactored into a state-machine-like enum.
Some peer-related API calls added.
Peers exchange pings, heights, peers.
No actual peer sync yet.
Other changes:
Peer version info taken from Maven build properties/resource file.
AnnotationPostProcessor more resilient when fetching PathItems.
Per-repository session debugging flag that can be toggled at will.
HSQLDBRepository.delete() now returns int so callers can detect
whether anything was actually deleted.
Some renaming to settings.
API calls that return lists now take limit, offset and reverse params.
API calls that used to return data & optional list (e.g. blockWithTransactions)
now only return base data. The optional lists can be fetched via
a different API call.
Also: SLF4J now routes logging to log4j2 so start up output cleaned up.
Suppressed extraneous Jersey warning about Providers during start-up injection.
Now uses working RIPE-MD160 by default but can be switched to broken MD160 using flag in blockchain config,
e.g. for Qora v1 blockchain.
Replaced API signature/reference examples with descriptive text as they weren't very useful.
Replaced API address examples with ones generated using working MD160.
Added GET /transactions/signature/{signature}/raw that returns raw transaction in base58 encoding.
Added "ignoreValidityChecks" query param to POST /transactions/decode to bypass INVALID_REFERENCE errors
if supplying an old/speculative transaction that can't be added to unconfirmed transaction pile.
Finally fixed creating inital assets in BlockChain.
Controller now inserts BouncyCastle as highest priority Security Provider.
TransactionData & transaction repository now tries to return transaction's block height in data when possible.
