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Make listsinceblock refuse unknown block hash

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Change suggested by Cory Fields <cory-nospam-@coryfields.com> who noticed
listsinceblock would ignore invalid block hashes causing it to return a
completely unfiltered list of transactions.
This commit is contained in:
Russell Yanofsky 2017-10-26 07:10:59 -04:00
parent 57ee73990f
commit 659b2061c4
3 changed files with 47 additions and 10 deletions
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3
doc/release-notes.md
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@ -76,6 +76,9 @@ will only create hierarchical deterministic (HD) wallets.
Low-level RPC changes
----------------------
- `listsinceblock` will now throw an error if an unknown `blockhash` argument
value is passed, instead of returning a list of all wallet transactions since
the genesis block.
- The "currentblocksize" value in getmininginfo has been removed.
- The deprecated RPC `getinfo` was removed. It is recommended that the more specific RPCs are used:
* `getblockchaininfo`

19
src/wallet/rpcwallet.cpp
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@ -1893,19 +1893,20 @@ UniValue listsinceblock(const JSONRPCRequest& request)
int target_confirms = 1;
isminefilter filter = ISMINE_SPENDABLE;
if (!request.params[0].isNull()) {
if (!request.params[0].isNull() && !request.params[0].get_str().empty()) {
uint256 blockId;
blockId.SetHex(request.params[0].get_str());
BlockMap::iterator it = mapBlockIndex.find(blockId);
if (it != mapBlockIndex.end()) {
paltindex = pindex = it->second;
if (chainActive[pindex->nHeight] != pindex) {
// the block being asked for is a part of a deactivated chain;
// we don't want to depend on its perceived height in the block
// chain, we want to instead use the last common ancestor
pindex = chainActive.FindFork(pindex);
}
if (it == mapBlockIndex.end()) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
}
paltindex = pindex = it->second;
if (chainActive[pindex->nHeight] != pindex) {
// the block being asked for is a part of a deactivated chain;
// we don't want to depend on its perceived height in the block
// chain, we want to instead use the last common ancestor
pindex = chainActive.FindFork(pindex);
}
}

35
test/functional/listsinceblock.py
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@ -5,7 +5,7 @@
"""Test the listsincelast RPC."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
from test_framework.util import assert_equal, assert_array_result, assert_raises_rpc_error
class ListSinceBlockTest (BitcoinTestFramework):
def set_test_params(self):
@ -16,10 +16,43 @@ class ListSinceBlockTest (BitcoinTestFramework):
self.nodes[2].generate(101)
self.sync_all()
self.test_no_blockhash()
self.test_invalid_blockhash()
self.test_reorg()
self.test_double_spend()
self.test_double_send()
def test_no_blockhash(self):
txid = self.nodes[2].sendtoaddress(self.nodes[0].getnewaddress(), 1)
blockhash, = self.nodes[2].generate(1)
self.sync_all()
txs = self.nodes[0].listtransactions()
assert_array_result(txs, {"txid": txid}, {
"category": "receive",
"amount": 1,
"blockhash": blockhash,
"confirmations": 1,
})
assert_equal(
self.nodes[0].listsinceblock(),
{"lastblock": blockhash,
"removed": [],
"transactions": txs})
assert_equal(
self.nodes[0].listsinceblock(""),
{"lastblock": blockhash,
"removed": [],
"transactions": txs})
def test_invalid_blockhash(self):
assert_raises_rpc_error(-5, "Block not found", self.nodes[0].listsinceblock,
"42759cde25462784395a337460bde75f58e73d3f08bd31fdc3507cbac856a2c4")
assert_raises_rpc_error(-5, "Block not found", self.nodes[0].listsinceblock,
"0000000000000000000000000000000000000000000000000000000000000000")
assert_raises_rpc_error(-5, "Block not found", self.nodes[0].listsinceblock,
"invalid-hex")
def test_reorg(self):
'''
`listsinceblock` did not behave correctly when handed a block that was