substitutes "for x in range(N):" by "for _ in range(N):"
indicates to the reader that a block is just repeated N times, and
that the loop counter is not used in the body
e5327f947c [rpc] fundrawtransaction: add_inputs option to control automatic input adding (Sjors Provoost)
79804fe24b [rpc] walletcreatefundedpsbt: don't automatically append inputs (Sjors Provoost)
Pull request description:
When the user doesn't specificy inputs, it makes sense to automatically select them. But when the user does specify inputs, `walletcreatefundedpsbt` now fails if the amount is insufficient, unless `addInputs` is set to `true`.
Similarly for `fundrawtransaction` if the original transaction already specified inputs, we only add more if `addInputs` is set to `true`.
This protects against fat finger mistakes in the amount or fee rate (see also #16257). The behavior is also more similar to GUI coin selection.
ACKs for top commit:
achow101:
ACK e5327f947c
meshcollider:
utACK e5327f947c
Tree-SHA512: d8653b820914396c7c25b0d0a2b7e92de214aa023bc1aa085feb37d3b20fab361ebea90416a7db989f19bdc37e26cf0adfbcb712c80985c87afa67a9bd44fecb
92bcd70808 [wallet] allow transaction without change if keypool is empty (Sjors Provoost)
709f8685ac [wallet] CreateTransaction: simplify change address check (Sjors Provoost)
5efc25f963 [wallet] translate "Keypool ran out" message (Sjors Provoost)
Pull request description:
Extracted from #16944
First this PR simplifies the check when generating a change address, by dropping `CanGetAddresses` and just letting `reservedest.GetReservedDestination` do this check.
Second, when the keypool is empty, instead of immediately giving up, we create a dummy change address and pass that to coin selection. If we didn't need the change address (e.g. when spending the entire balance), then it's all good. If we did need a change address, we throw the original error.
ACKs for top commit:
fjahr:
Code review ACK 92bcd70808
jonasschnelli:
utACK 92bcd70808
achow101:
ACK 92bcd70808
meshcollider:
Code review ACK 92bcd70808
Tree-SHA512: 07b8c8251f57061c58a85ebf0359be63583c23bac7a2c4cefdc14820c0cdebcc90a2bb218e5ede0db11d1e204cda149e056dfd18614642070b3d56efe2735006
This was only added in c1dde3a949 to match
behaviour when `encryptwallet` would restart the node. It's not required
for the test (and slows things down).
Most of the time in rpc_fundrawtransaction.py is spent waiting for
unconfirmed transactions to propagate. Net processing adds a poisson
random delay to the time it will INV transactions with a mean interval
of 5 seconds. Calls like the following:
```
self.nodes[2].sendrawtransaction(signedTx['hex'])
self.sync_all()
self.nodes[1].generate(1)
````
will therefore introduce a delay waiting for the mempools to sync.
Instead just generate the block on the node that sent the transaction:
```
self.nodes[2].sendrawtransaction(signedTx['hex'])
self.nodes[2].generate(1)
```
rpc_fundrawtransaction.py is not intended to be a test for transaction
relay, so it's ok to do this.
Doc changes only to test/functional/rpc_fundrawtransaction.py:
- remove ascii art or convert to a docstring when sufficiently different from
the logging
- touch up other comments while here
test/functional/rpc_fundrawtransaction.py is fairly long to run and has no
logging, so it can appear to be stalled.
This commit adds info logging at each test to provide feedback on the test run.
FundTransaction calls GetMinimumFee which, when the fee rate is absurdly high, quietly reduced the fee to -maxtxfee. Becaue an absurdly high fee rate is usually the result of a fat finger, aborting seems safer behavior.
c1dde3a949 No longer shutdown after encrypting the wallet (Andrew Chow)
d7637c5a3f After encrypting the wallet, reload the database environment (Andrew Chow)
5d296ac810 Add function to close all Db's and reload the databae environment (Andrew Chow)
a769461d5e Move BerkeleyEnvironment deletion from internal method to callsite (Andrew Chow)
Pull request description:
This is the replacement for #11678 which implements @ryanofsky's [suggestion](https://github.com/bitcoin/bitcoin/pull/11678#pullrequestreview-76464511).
Shutting down the software was to prevent the BDB environment from writing unencrypted private keys to disk in the database log files, as was noted [here](https://bitcointalk.org/index.php?topic=51474.msg616068#msg616068). This PR replaces the shutdown behavior with a CDBEnv flush, close, and reopen which achieves the same effect: everything is cleanly flushed and closed, the log files are removed, and then the environment reopened to continue normal operation.
To ensure that no unencrypted private keys are in the log files after encrypting the wallet, I wrote [this script](https://gist.github.com/achow101/7f7143e6c3d3fdc034d3470e72823e9d) to pull private keys from the original wallet file and searches for these keys in the log files (note that you will have to change your file paths to make it work on your own machine).
As for concerns about private keys being written to slack space or being kept in memory, these behaviors no longer exist after the original wallet encryption PR and the shutting down solution from 2011.
cc @ryanofsky
Tree-SHA512: 34b894283b0677a873d06dee46dff8424dec85a2973009ac9b84bcf3d22d05f227c494168c395219d9aee3178e420cf70d4b3eeacc9785aa86b6015d25758e75
891beb0 [test] fundrawtransaction: lock watch-only shared address (Karl-Johan Alm)
Pull request description:
`self.nodes[0]` creates an address which is watch-only-shared with `self.nodes[3]`. If `nodes[0]` spends the associated UTXO during any of its sends later, the watchonly test will fail, as `nodes[3]` now has insufficient funds.
I ran into this in #12257 and this commit is in that PR as well, but I figured I'd split it out (and remove from there once/if merged).
Tree-SHA512: d04a04b1ecebe82127cccd47c1b3de311bf07f4b51dff80db20ea2f142e1d5c4a85ed6180c5c0b081d550e238c742e119b953f60f487deac5a3f3536e1a8d9fe
self.nodes[0] creates an address which is watch-only-shared with self.nodes[3]. If nodes[0] spends the associated UTXO during any of its sends later, the watchonly test will fail, as nodes[3] now has insufficient funds.
Note that this also adds a new find_vout_for_address function to the test framework.
Based on suggestion by Pieter Wuille <pieter.wuille@gmail.com> at
https://github.com/bitcoin/bitcoin/pull/12119#issuecomment-357982763
After #12119, the NONE output type was overloaded to refer to either an output
type that couldn't be parsed, or to an automatic change output mode. This
change drops the NONE enum and uses a simple bool indicate parse failure, and a
new CHANGE_AUTO enum to refer the change output type.
This change is almost a pure refactoring except it makes RPCs reject empty
string ("") address types instead of treating them like they were unset. This
simplifies the parsing code a little bit and could prevent RPC usage mistakes.
It's noted in the release notes.
Change all instances of validateaddress to getaddressinfo since it seems that
no test actually uses validateaddress for actually validating addresses.
-BEGIN VERIFY SCRIPT-
find ./test/functional -path '*py' -not -path ./test/functional/wallet_disable.py -not -path ./test/functional/rpc_deprecated.py -not -path ./test/functional/wallet_address_types.py -exec sed -i'' -e 's/validateaddress/getaddressinfo/g' {} \;
-END VERIFY SCRIPT-
