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A secure lbry wallet daemon written in Go
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Josh Rickmar 59845d9c21 Implement a batching rescan manager. 
Recent btcd versions only allow one rescan to run at any given time
per websocket client.  To better handle this, a new set of goroutines
are started by the account manager which batch and serialize rescan
jobs.

If no rescans are currently running, a new rescan starts.  If a rescan
is already being processed, the request is queued and runs after the
current rescan finishes.  For any additional incoming requests before
the current rescan finishes, the requests are merged with the
currently-waiting request so both can be handled with a single rescan.

This change also prepares for rescan progress notifications from btcd,
but are still unhandled until the necessary details for
partially-synced addresses are added to the wallet file format.
2014-03-26 17:27:30 -05:00
tx Make tests compile after API change. 2014-03-18 17:52:08 -05:00
wallet Refactor len(w.secret) != 32 2014-03-20 11:37:54 -05:00
.gitignore Initial commit. 2013-08-21 10:37:30 -04:00
.travis.yml TravisCI support 2013-12-08 22:15:16 -05:00
account.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
acctmgr.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
CHANGES Prepare for release 0.3.0. 2014-02-10 12:13:15 -05:00
cmd.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
config.go Invert allowfree option. 2014-01-28 12:55:42 -05:00
createtx.go Issue #65: Give the correct error when wallet is locked 2014-03-25 16:38:31 -05:00
createtx_test.go Introduce new transaction store. 2014-02-24 14:35:30 -05:00
deps.txt Prepare for release 0.1.0. 2013-11-13 14:08:35 -05:00
disksync.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
log.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
ntfns.go Use min of now and blocktime for tx recv time. 2014-03-18 15:31:16 -05:00
params.go Update copyright years on remaining files. 2014-01-09 14:13:26 -05:00
README.md Fix a couple typos in the README. 2014-01-15 15:32:18 -05:00
rename_plan9.go Add atomic rename functions for Windows and Plan 9. 2013-12-05 14:06:51 -05:00
rename_unix.go Update copyright years on remaining files. 2014-01-09 14:13:26 -05:00
rename_windows.go Add atomic rename functions for Windows and Plan 9. 2013-12-05 14:06:51 -05:00
rescan.go Implement a batching rescan manager. 2014-03-26 17:27:30 -05:00
rpc.go Redo account locking and RPC request processing. 2014-02-01 13:18:34 -05:00
rpcclient.go Bootstrap rescan requests with utxo set. 2014-03-21 15:36:42 -05:00
rpcserver.go Issue #65: Give the correct error when wallet is locked 2014-03-25 16:38:31 -05:00
sample-btcwallet.conf Invert allowfree option. 2014-01-28 12:55:42 -05:00
sockets.go Prevent a send on closed chan panic. 2014-03-20 16:10:42 -05:00
updates.go Implement walletpassphrasechange RPC call. 2014-01-27 14:14:54 -05:00
version.go Prepare for release 0.3.0. 2014-02-10 12:13:15 -05:00

README.md

btcwallet

[Build Status] (https://travis-ci.org/conformal/btcwallet)

btcwallet is a daemon handling bitcoin wallet functionality for a single user. It acts as both an RPC client to btcd and an RPC server for wallet frontends and legacy RPC applications.

The wallet file format is based on Armory and provides a deterministic wallet where all future generated private keys can be recovered from a previous wallet backup. Unencrypted wallets are unsupported and are never written to disk. This design decision has the consequence of generating new wallets on the fly impossible: a frontend is required to provide a wallet encryption passphrase.

btcwallet is not an SPV client and requires connecting to a local or remote btcd instance for asynchronous blockchain queries and notifications over websockets. Full btcd installation instructions can be found here.

As a daemon, btcwallet provides no user interface and an additional graphical or command line client is required for normal, personal wallet usage. Conformal has written btcgui as a graphical frontend to btcwallet.

This project is currently under active development is not production ready yet. Support for creating and using wallets the main Bitcoin network is currently disabled by default.

Installation

Windows - MSI Available

Install the btcd suite MSI here:

https://opensource.conformal.com/packages/windows/btcdsuite/

Linux/BSD/POSIX - Build from Source

  • Install Go according to the installation instructions here: http://golang.org/doc/install

  • Run the following commands to obtain and install btcwallet and all dependencies:

$ go get -u -v github.com/conformal/btcd/...
$ go get -u -v github.com/conformal/btcwallet/...
  • btcd and btcwallet will now be installed in either $GOROOT/bin or $GOPATH/bin depending on your configuration. If you did not already add to your system path during the installation, we recommend you do so now.

Updating

Windows

Install a newer btcd suite MSI here:

https://opensource.conformal.com/packages/windows/btcdsuite/

Linux/BSD/POSIX - Build from Source

  • Run the following commands to update btcwallet, all dependencies, and install it:
$ go get -u -v github.com/conformal/btcd/...
$ go get -u -v github.com/conformal/btcwallet/...

Getting Started

The follow instructions detail how to get started with btcwallet connecting to a localhost btcd.

Windows (Installed from MSI)

Open Btcd Suite from the Btcd Suite menu in the Start Menu. This will also open btcgui, which can be closed if you only want btcd and btcwallet running.

Linux/BSD/POSIX/Source

  • Run the following command to start btcd:
$ btcd --testnet -u rpcuser -P rpcpass
  • Run the following command to start btcwallet:
$ btcwallet -u rpcuser -P rpcpass

If everything appears to be working, it is recommended at this point to copy the sample btcd and btcwallet configurations and update with your RPC username and password.

$ cp $GOPATH/src/github.com/conformal/btcd/sample-btcd.conf ~/.btcd/btcd.conf
$ cp $GOPATH/src/github.com/conformal/btcwallet/sample-btcwallet.conf ~/.btcwallet/btcwallet.conf
$ $EDITOR ~/.btcd/btcd.conf
$ $EDITOR ~/.btcwallet/btcwallet.conf

Frontend Usage

Frontends wishing to use btcwallet must connect to the path /frontend over a websocket connection. Messages sent to btcwallet over this websocket are expected to follow the standard Bitcoin JSON API (partially documented here). Websocket connections also enable additional API extensions and JSON-RPC notifications (currently undocumented). The btcd packages btcjson and btcws provide types and functions for creating and JSON (un)marshaling these requests and notifications.

TODO

  • Full RPC compatibility with bitcoind, including mining support
  • RPC documentation (both bitcoind commands and btcwallet extensions available for websocket connections)
  • P2SH and multisig functionality
  • Improved test coverage

GPG Verification Key

All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from Conformal. To verify the signature perform the following:

  • Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt

  • Import the public key into your GPG keyring:

    gpg --import GIT-GPG-KEY-conformal.txt

  • Verify the release tag with the following command where TAG_NAME is a placeholder for the specific tag:

    git tag -v TAG_NAME

License

btcwallet is licensed under the liberal ISC License.