The blockchain that provides the digital content namespace for the LBRY protocol
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Wladimir J. van der Laan 6ef3c7ec62
Merge #9622: [rpc] listsinceblock should include lost transactions when parameter is a reorg'd block
876e92b Testing: listsinceblock should display all transactions that were affected since the given block, including transactions that were removed due to a reorg. (Karl-Johan Alm)
f999c46 listsinceblock: optionally find and list any transactions that were undone due to reorg when requesting a non-main chain block in a new 'removed' array. (Karl-Johan Alm)

Pull request description:

  The following scenario will not notify the caller of the fact `tx0` has been dropped:

  1. User 1 receives BTC in tx0 from utxo1 in block aa1.
  2. User 2 receives BTC in tx1 from utxo1 (same) in block bb1
  3. User 1 sees 2 confirmations at block aa3.
  4. Reorg into bb chain.
  5. User 1 asks `listsinceblock aa3` and does not see that tx0 is now invalidated.

  See `listsinceblock.py` commit for related test.

  The proposed fix is to iterate from the given block down to the fork point, and to check each transaction in the blocks against the wallet, in addition to including all transactions from the fork point to the active chain tip (the current behavior). Any transactions that were present will now also be listed in the `listsinceblock` output in a new `replaced` array. This operation may be a bit heavy but the circumstances (and perceived frequency of occurrence) warrant it, I believe.

  Example output:
  ```Python
  {
    'transactions': [],
    'replaced': [
      {
        'walletconflicts': [],
        'vout': 1,
        'account': '',
        'timereceived': 1485234857,
        'time': 1485234857,
        'amount': '1.00000000',
        'bip125-replaceable': 'unknown',
        'trusted': False,
        'category': 'receive',
        'txid': 'ce673859a30dee1d2ebdb3c05f2eea7b1da54baf68f93bb8bfe37c5f09ed22ff',
        'address': 'miqEt4kWp9zSizwGGuUWLAmxEcTW9bFUnQ',
        'label': '',
        'confirmations': -7
      }
    ],
    'lastblock': '7a388f27d09e3699102a4ebf81597d974fc4c72093eeaa02adffbbf7527f6715'
  }
  ```

  I believe this addresses the comment by @luke-jr in https://github.com/bitcoin/bitcoin/pull/9516#issuecomment-274190081 but I could be wrong..

Tree-SHA512: 607b5dcaeccb9dc0d963d3de138c40490f3e923050b29821e6bd513d26beb587bddc748fbb194503fe618cfe34a6ed65d95e8d9c5764a882b6c5f976520cff35
2017-07-24 12:59:48 +02:00
.github Mention reporting security issues responsibly 2016-11-10 14:41:40 +01:00
.tx qt: Set transifex slug to 0.14 2017-01-02 09:36:03 +01:00
build-aux/m4 Explicitly search for bdb5.3. 2017-07-02 02:48:00 +00:00
contrib Merge #10786: Add PR description to merge commit in github-merge.py 2017-07-11 15:40:08 +02:00
depends [depends] expat 2.2.1 2017-06-19 12:49:32 +08:00
doc REST/RPC example update 2017-06-30 13:21:08 +02:00
share Slightly overhaul NSI pixmaps 2017-06-22 21:40:48 +02:00
src Merge #9622: [rpc] listsinceblock should include lost transactions when parameter is a reorg'd block 2017-07-24 12:59:48 +02:00
test Merge #9622: [rpc] listsinceblock should include lost transactions when parameter is a reorg'd block 2017-07-24 12:59:48 +02:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Use shared config file for functional and util tests 2017-05-03 14:18:30 -04:00
.travis.yml [test] don't run dbcrash.py on Travis 2017-07-04 17:27:46 +01:00
autogen.sh Add MIT license to autogen.sh and share/genbuild.sh 2016-09-21 23:01:36 +00:00
configure.ac Protect SSE4 code behind a compile-time flag 2017-07-20 09:03:53 -07:00
CONTRIBUTING.md [doc] Add blob about finding reviewers. 2017-04-17 22:48:28 +09:00
COPYING [Trivial] Update license year range to 2017 2017-01-23 23:46:06 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in Unify package name to as few places as possible without major changes 2015-12-14 02:11:10 +00:00
Makefile.am Filter subtrees and and benchmarks from coverage report 2017-06-12 15:53:30 -07:00
README.md Squashed 'src/leveldb/' changes from a31c8aa40..196962ff0 2017-06-09 19:24:30 -07:00

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