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lbcwallet/CHANGES
Roy Lee 202374ebd8 [lbry] fork from btcsuite to lbryio 
1. btcd -> lbcd
2. btcwallet -> lbcallet
3. btcutil -> lbcutil
2022-05-24 10:31:06 -07:00

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============================================================================
User visible changes for lbcwallet
A wallet daemon for lbcd, written in Go
============================================================================
Changes in 0.7.0 (Mon Nov 23 2015)
- New features:
- Wallet will now detect network inactivity and reconnect to the lbcd
RPC server if the connection was lost (#320)
- Bug fixes:
- Removed data races in the RPC server (#292) and waddrmgr package
(#293)
- Corrected handling of lbcutil.AddressPubKey addresses when querying
for a ManagedAddress from the address manager (#313)
- Fixed signmessage and verifymessage algorithm to match the equivalent
algorithms used by Core (#324)
- Notable developer-related changes:
- Added support for AppVeyor continuous integration (#299)
- Take advantage of optimized zeroing from the Go 1.5 release (#286)
- Added IsError function to waddrmgr to check that an error is a
ManagerError and contains a matching error code (#289). Simplified
error handling in the wallet package and RPC server with this function
(#290).
- Switched to using a more space efficient data structure for the
wtxmgr CreditRecord type (#295)
- Incorporated latest updates to the votingpool package (#315)
- Miscellaneous:
- Updated websocket notification handlers to latest API required by
lbcd (#294)
- Enabled the logging subsystem of the rpcclient package (#328)
- Contributors (alphabetical order):
- Alex Yocom-Piatt
- cjepson
- Dave Collins
- John C. Vernaleo
- Josh Rickmar
- Rune T. Aune
Changes in 0.6.0 (Wed May 27 2015)
- New features:
- Add initial account support (#155):
- Add account names for each account number
- Create initial account with the "default" name
- Create new accounts using the createnewaccount RPC
- All accounts (with the exception of the imported account) may be
renamed using the renameaccount RPC
- RPC requests with an unspecified account that default to the unnamed
account in Bitcoin Core Wallet default to "default", the name of the
initial account
- Several RPCs with account parameters do not work with lbcwallet
accounts due to concerns over expectations of API compatibility with
Bitcoin Core Wallet. A new RPC API is being planned to rectify this
(#220).
- Store transactions, transaction history, and spend tracking in the
database (#217, #234)
- A full rescan is required when updating from previous wallet
versions to rebuild the transaction history
- Add utility (cmd/dropwtxmgr) to drop transaction history and force a
rescan (#234)
- Implement the help RPC to return single line usages of all wallet and
lbcd server requests as well as detailed usage for a single request
- Bug fixes:
- Handle chain reorgs by unconfirming transactions from removed blocks
(#248)
- Rollback all transaction history when none of the saved recently seen
block hashes are known to lbcd (#234, #281)
- Prevent the situation where the default account was renamed but cannot
be renamed back to "" or "default" by removing the special case naming
policy for the default account (#253)
- Create the initial account address if needed when calling the
getaccountaddress RPC (#238)
- Prevent listsinceblock RPC from including all listtransactions result
objects for all transactions since the genesis block (fix included in
#227)
- Add missing fields to listtransactions and gettransaction RPC results
(#265)
- Remove target confirmations limit on listsinceblock results (#266)
- Add JSON array to report errors creating input signature for
signrawtransaction RPC (#267)
- Use negative fees with listtransactions result types (#272)
- Prevent duplicate wallet lock attempt after timeout if explicitly
locked (#275)
- Use correct RPC server JSON-RPC error code for incorrect passphrases
with a walletpassphrase request (#284)
- Regressions:
- Inserting transactions and marking outputs as controlled by wallet in
the new transaction database is extremely slow compared to the previous
in-memory implementation. Later versions may improve this performance
regression by using write-ahead logging (WAL) and performing more
updates at a time under a single database transaction.
- Notable developer-related changes:
- Relicense all code to the lbcsuite developers (#258)
- Replace txstore package with wtxmgr, the walletdb-based transaction
store (#217, #234)
- Add Cursor API to walletdb for forwards and backwards iteration over
a bucket (included in #234)
- Factor out much of main's wallet.go into a wallet package (#213,
#276, #255)
- Convert RPC server and client to lbcjson v2 API (#233, #227)
- Help text and single line usages for the help RPC are pregenerated
from descriptions in the internal/rpchelp package and saved as
globals in main. Help text must be regenerated (using `go generate`)
each time the lbcjson struct tags change or the help definitions are
modified.
- Add additional features to the votingpool package:
- Implement StartWithdrawal API to begin an Open Transactions
withdrawal (#178)
- Add internal APIs to store withdrawal transactions in the wallet's
transaction database (#221)
- Addresses marked as used after appearing publicly on the blockchain or
in mempool; required for future single-use address support (#207)
- Modified waddrmgr APIs to use ForEach functions to iterate over
address strings and managed addresses to improve scability (#216)
- Move legacy directory under internal directory to prevent importing
of unmaintained packages (enforced since Go 1.5) (#285)
- Improve test coverage in the waddrmgr and wtxmgr packages (#239, #217)
- Contributors (alphabetical order):
- Dave Collins
- Guilherme Salgado
- Javed Khan
- Josh Rickmar
- Manan Patel
Changes in 0.5.1 (Fri Mar 06 2015)
- New features:
- Add flag (--createtemp) to create a temporary simnet wallet
- Bug fixes:
- Mark newly received transactions confirmed when the wallet is initially
created or opened with no addresses
- Notable developer-related changes:
- Refactor the address manager database upgrade paths for easier future
upgrades
- Private key zeroing functions consolidated into the internal zero package
and optimized
Changes in 0.5.0 (Tue Mar 03 2015)
- New features:
- Add a new address manager package (waddrmgr) to replace the previous
wallet/keystore package:
- BIP0032 hierarchical deterministic keys
- BIP0043/BIP0044 multi-account hierarchy
- Strong focus on security:
- Wallet master encryption keys protected by scrypt PBKDF
- NaCl-based secretbox cryptography (XSalsa20 and Poly1305)
- Mandatory encryption of private keys and P2SH redeeming scripts
- Optional encryption of public data, including extended public keys
and addresses
- Different crypto keys for redeeming scripts to mitigate cryptanalysis
- Hardened against memory scraping through the use of actively clearing
private material from memory when locked
- Different crypto keys used for public, private, and script data
- Ability for different passphrases for public and private data
- Multi-tier scalable key design to allow instant password changes
regardless of the number of addresses stored
- Import WIF keys
- Import pay-to-script-hash scripts for things such as multi-signature
transactions
- Ability to export a watching-only version which does not contain any
private key material
- Programmatically detectable errors, including encapsulation of errors
from packages it relies on
- Address synchronization capabilities
- Add a new namespaced database package (walletdb):
- Key/value store
- Namespace support
- Allows multiple packages to have their own area in the database without
worrying about conflicts
- Read-only and read-write transactions with both manual and managed modes
- Nested buckets
- Supports registration of backend databases
- Comprehensive test coverage
- Replace the createencryptedwallet RPC with a wizard-style prompt
(--create) to create a new walletdb-backed wallet file and import keys
from the old Armory wallet file (if any)
- Transaction creation changes:
- Drop default transaction fee to 0.00001 BTC per kB
- Use standard script flags provided by the txscript package for
transaction creation and sanity checking
- Randomize change output index
- Includes amounts (total spendable, total needed, and fee) in all
insufficient funds errors
- Add support for simnet, the private simulation test network
- Implement the following Bitcoin Core RPCs:
- listreceivedbyaddress (#53)
- lockunspent, listlockunspent (#50, #55)
- getreceivedbyaddress
- listreceivedbyaccount
- Reimplement lbcd RPCs which return the best block to use the block most
recently processed by wallet to avoid confirmation races:
- getbestblockhash
- getblockcount
- Perform clean shutdown on interrupt or when a stop RPC is received (#69)
- Throttle the number of connected HTTP POST and websocket client
connections (tunable using the rpcmaxclients and rpcmaxwebsockets config
options)
- Provide the ability to disable TLS when connecting to a localhost lbcd or
serving localhost clients
- Rescan improvements:
- Add a rescan notification for when the rescan has completed and no more
rescan notifications are expected (#99)
- Use the most recent partial sync height from a rescan progress
notification when a rescan is restarted after the lbcd connection is lost
- Force a rescan if the transaction store cannot be opened (due to a
missing file or if the deserialization failed)
- RPC compatibility improvements:
- Allow the use of the `*` account name to refer to all accounts
- Make the account parameter optional for the getbalance and
listalltransactions requests
- Add iswatchonly field to the validateaddress response result
- Check address equivalence in verifymessage by comparing pubkeys and pubkey
hashes rather than requiring the address being verified to be one
controlled by the wallet and using its private key for verification
- Bug fixes:
- Prevent an out-of-bounds panic when handling a gettransaction RPC.
- Prevent a panic on client disconnect (#110).
- Prevent double spending coins when creating multiple transactions at once
by serializing access to the transaction creation logic (#120)
- Mark unconfirmed transaction credits as spent when another unconfirmed
transaction spends one (#91)
- Exclude immature coinbase outputs from listunspent results (#103)
- Fix several data and logic races during sync with lbcd (#101)
- Avoid a memory issue from incorrect slice usage which caused both
duplicate and missing blocks in the transaction store when middle
inserting transactions from a new block
- Only spend P2PKH outputs when creating sendfrom/sendmany/sendtoaddress
transactions (#89)
- Return the correct UTXO set when fetching all wallet UTXOs by fixing an
incorrect slice append
- Remove a deadlock caused by filling the lbcd notification channel (#100)
- Avoid a confirmation race by using the most recently processed block in
RPC handlers, rather than using the most recently notified block by lbcd
- Marshal empty JSON arrays as `[]` instead of the JSON `null` by using
empty, non-nil Go slices
- Flush logs and run all deferred functions before main returns and the
process exits
- Sync temporary transaction store flat file before closing and renaming
- Accept hex strings with an odd number of characters
- Notable developer-related changes:
- Switch from the go.net websocket package to gorilla websockets
- Refactor the RPC server:
- Move several global variables to the rpcServer struct
- Dynamically look up appropriate handlers for the current lbcd connection
status and wallet sync state
- Begin creating websocket notifications by sending to one of many
notification channels in the rpcServer struct, which are in turn
marshalled and broadcast to each websocket client
- Separate the RPC client code into the chain package:
- Uses rpcclient for a lbcd websocket RPC client
- Converts all notification callbacks to typed messages sent over channels
- Uses an unbounded queue for waiting notifications
- Import a new voting pool package (votingpool):
- Create and fetch voting pools and series from a walletdb namespace
- Generate deposit addresses utilizing m-of-n multisig P2SH scripts
- Improve transaction creation readability by splitting a monolithic
function into several smaller ones
- Check and handle all errors in some way, or explicitly comment why a
particular error was left unchecked
- Simplify RPC error handling by wrapping specific errors in unique types to
create an appropriate lbcjson error before the response is marshalled
- Add a map of unspent outputs (keyed by outpoint) to the transaction store
for quick lookup of any UTXO and access to the full wallet UTXO set
without iterating over many transactions looking for unspent credits
- Modify several data structures and function signatures have been modified
to reduce the number of needed allocations and be more cache friendly
- Miscellaneous:
- Rewrite paths relative to the data directory when an alternate data
directory is provided on the command line
- Switch the websocket endpoint to `ws` to match lbcd
- Remove the getaddressbalance extension RPC to discourage address reuse and
encourage watching for expected payments by using listunspent
- Increase transaction creation performance by moving the sorting of
transaction outputs by their amount out of an inner loop
- Add additional logging to the transaction store:
- Log each transaction added to the store
- Log each previously unconfirmed transaction that is mined
- [debug] Log which previous outputs are marked spent by a newly inserted
debiting transaction
- [debug] Log each transaction that is removed in a rollback
- Only log rollbacks if transactions are reorged out of the old chain
- Save logs to network-specific directories
(e.g. ~/.lbcwallet/logs/testnet3) to match lbcd behavior (#114)
Changes in 0.4.0 (Sun May 25 2014)
- Implement the following standard bitcoin server RPC requests:
- signmessage (https://github.com/lbryio/lbcwallet/issues/58)
- verifymessage (https://github.com/lbryio/lbcwallet/issues/61)
- listunspent (https://github.com/lbryio/lbcwallet/issues/54)
- validateaddress (https://github.com/lbryio/lbcwallet/issues/60)
- addressmultisig (https://github.com/lbryio/lbcwallet/issues/37)
- createmultisig (https://github.com/lbryio/lbcwallet/issues/37)
- signrawtransaction (https://github.com/lbryio/lbcwallet/issues/59)
- Add authenticate extension RPC request to authenticate a websocket
session without requiring the use of the HTTP Authorization header
- Add lbcdusername and lbcdpassword options to allow separate
authentication credentials from wallet clients when authenticating to a
lbcd websocket RPC server
- Fix RPC response passthrough: JSON unmarshaling and marshaling is now
delayed until necessary and JSON result objects from lbcd are sent to
clients directly without an extra decode+encode that may change the
representation of large integer values
- Fix several websocket client connection issues:
- Disconnect clients are cleanly removed without hanging on any final
sends
- Set deadline for websocket client sends to prevent hanging on
misbehaving clients or clients with a bad connection
- Fix return result for dumprivkey by always padding the private key bytes
to a length of 32
- Fix rescan for transaction history for imported addresses
(https://github.com/lbryio/lbcwallet/issues/74)
- Fix listsinceblock request handler to consider the minimum confirmation
parameter (https://github.com/lbryio/lbcwallet/issues/80)
- Fix several RPC handlers which require an unlocked wallet to check
for an unlocked wallet before continuing
(https://github.com/lbryio/lbcwallet/issues/65)
- Fix handling for block rewards (coinbase transactions):
- Update listtransactions results to use "generate" category for
coinbase outputs
- Prevent inclusion of immature coinbase outputs for newly created
transactions
- Rewrite the transaction store to handle several issues regarding
transation malleability and performance issues
- The new transaction store is written to disk in a different format
then before, and upgrades will require a rescan to rebuild the
transaction history
- Improve rescan:
- Begin rescan with known UTXO set at start height
- Serialize executation of all rescan requests
- Merge waiting rescan jobs so all jobs can be handled with a single
rescan
- Support parially synced addresses in the keystore and incrementally
mark rescan progress. If a rescan is unable to continue (wallet
closes, lbcd disconnects, etc.) a new rescan can start at the last
synced chain height
- Notify (with an unsolicited notification) websocket clients of lbcd
connection state
- Improve logging:
- Log reason for disconnecting a websocket client
- Updates for lbcd websocket API changes
- Stability fixes, internal API changes, general code cleanup, and comment
corrections
Changes in 0.3.0 (Mon Feb 10 2014)
- Use correct hash algorithm for chained addresses (fixes a bug where
address chaining was still deterministic, but forked from Armory and
previous lbcwallet implementations)
- Change websocket endpoint to connect to lbcd 0.6.0-alpha
- Redo server implementation to serialize handling of client requests
- Redo account locking to greatly reduce lbcwallet lockups caused by
incorrect mutex usage
- Open all accounts, rather than just the default account, at startup
- Generate new addresses using pubkey chaining if keypool is depleted and
wallet is locked
- Make maximum keypool size a configuration option (keypoolsize)
- Add disallowfree configuration option (default false) to force adding
the minimum fee to all outbound transactions
- Implement the following standard bitcoin server RPC requests:
- getinfo (https://github.com/lbryio/lbcwallet/issues/63)
- getrawchangeaddress (https://github.com/lbryio/lbcwallet/issues/41)
- getreceivedbyaccount (https://github.com/lbryio/lbcwallet/issues/42)
- gettransaction (https://github.com/lbryio/lbcwallet/issues/44)
- keypoolrefill (https://github.com/lbryio/lbcwallet/issues/48)
- listsinceblock (https://github.com/lbryio/lbcwallet/issues/52)
- sendtoaddress (https://github.com/lbryio/lbcwallet/issues/56)
- Add empty (unimplemented) handlers for the following RPC requests so
requests are not passed down to lbcd:
- getblocktemplate
- getwork
- stop
- Add RPC extension request, exportwatchingwallet, to export an account
with a watching-only wallet from an account with a hot wallet that
may be used by a separate lbcwallet instance
- Require all account wallets to share the same passphrase
- Change walletlock and walletpassphrase RPC requests to lock or unlock
all account wallets
- Allow opening accounts with watching-only wallets
- Return txid for sendfrom RPC requests
(https://github.com/lbryio/lbcwallet/issues/64)
- Rescan imported private keys in background
(https://github.com/lbryio/lbcwallet/issues/34)
- Do not import duplicate private keys
(https://github.com/lbryio/lbcwallet/issues/35)
- Write all three account files for a new account, rather than just
the wallet (https://github.com/lbryio/lbcwallet/issues/30)
- Create any missing directories before writing autogenerated certificate
pair
- Fix rescanning of a new account's root address
- Fix error in the wallet file serialization causing duplicate address
encryption attempts
- Fix issue calculating eligible transaction inputs caused by a bad
confirmation check
- Fix file locking issue on Windows caused by not closing files before
renaming
- Fix typos in README file
Changes in 0.2.1 (Thu Jan 10 2014)
- Fix a mutex issue which caused lbcwallet to lockup on all
RPC requests needing to read or write an account
Changes in 0.2.0 (Thu Jan 09 2014)
- Enable mainnet support (disabled by default, use --mainnet to enable)
- Don't hardcode localhost lbcd connections. Instead, add a --connect
option to specify the hostname or address and port of a local or
remote lbcd instance
(https://github.com/lbryio/lbcwallet/issues/1)
- Remove --serverport port and replace with --listen. This option works
just like lbcd's --rpclisten and allows to specify the interfaces to
listen for RPC connections
- Require TLS and Basic HTTP authentication before wallet can be
controlled over RPC
- Refill keypool if wallet is unlocked and keypool is emptied
- Detect and rollback saved tx/utxo info after lbcd performs blockchain
reorganizations while lbcwallet was disconnected
- Add support for the following standard bitcoin JSON-RPC calls:
- dumpprivkey (https://github.com/lbryio/lbcwallet/issues/9)
- getaccount
- getaccountaddress
- importprivkey (https://github.com/lbryio/lbcwallet/issues/2)
- listtransactions (https://github.com/lbryio/lbcwallet/issues/12)
- Add several extension RPC calls for websocket connections:
- getaddressbalance: get the balance associated with a single address
- getunconfirmedbalance: get total balance for unconfirmed transactions
- listaddresstransactions: list transactions for a single address
(https://github.com/lbryio/lbcwallet/issues/27)
- listalltransactions: lists all transactions without specifying a range
- Make RPC extensions available only to websocket connections, with the
exception of createencryptedwallet
- Add dummy handlers for unimplemented wallet RPC calls
(https://github.com/lbryio/lbcwallet/issues/29)
- Add socks5/tor proxy support
- Calculate and add minimum transaction fee to created transactions
- Use OS-specific rename calls to provide atomic file renames which
can replace a currently-existing file
(https://github.com/lbryio/lbcwallet/issues/20)
- Move account files to a single directory per bitcoin network to
prevent a future scaling issue
(https://github.com/lbryio/lbcwallet/issues/16)
- Fix several data races and mutex mishandling
- Fix a bug where the RPC server hung on requests requiring lbcd
when a lbcd connection was never established
- Fix a bug where creating account files did not create all necessary
directories (https://github.com/lbryio/lbcwallet/issues/15)
- Fix a bug where '~' did not expand to a home or user directory
(https://github.com/lbryio/lbcwallet/issues/17)
- Fix a bug where returning account names as strings did not remove
trailing ending 0s
- Fix a bug where help usage was displayed twice using the -h or --help
flag
- Fix sample listening address in sample configuration file
- Update sample configuration file with all available options with
descriptions and defaults for each
Initial Release 0.1.0 (Wed Nov 13 2013)
- Initial release
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