1c4b456e1a gui: send using external signer (Sjors Provoost)
24815c6309 gui: wallet creation detects external signer (Sjors Provoost)
3f845ea299 node: add externalSigners to interface (Sjors Provoost)
62ac119f91 gui: display address on external signer (Sjors Provoost)
450cb40a34 wallet: add displayAddress to interface (Sjors Provoost)
eef8d64529 gui: create wallet with external signer (Sjors Provoost)
6cdbc83e93 gui: add external signer path to options dialog (Sjors Provoost)
Pull request description:
Big picture overview in [this gist](https://gist.github.com/Sjors/29d06728c685e6182828c1ce9b74483d).
This PR adds GUI support for external signers, based on the since merged bitcoin/bitcoin#16546 (RPC).
The UX isn't amazing - especially the blocking calls - but it works.
First we adds a GUI setting for the signer script (e.g. path to HWI):
<img width="625" alt="Schermafbeelding 2019-08-05 om 19 32 59" src="https://user-images.githubusercontent.com/10217/62483415-e1ff1680-b7b7-11e9-97ca-8d2ce54ca1cb.png">
Then we add an external signer checkbox to the wallet creation dialog:
<img width="374" alt="Schermafbeelding 2019-11-07 om 19 17 23" src="https://user-images.githubusercontent.com/10217/68416387-b57ee000-0194-11ea-9730-127d60273008.png">
It's checked by default if HWI detects a device. It also grabs the name. It then creates a fresh wallet and imports the keys.
You can verify an address on the device (blocking...):
<img width="673" alt="Schermafbeelding 2019-08-05 om 19 29 22" src="https://user-images.githubusercontent.com/10217/62483560-43bf8080-b7b8-11e9-9902-8a036116dc4b.png">
Sending, including coin selection, Just Works(tm) as long the device is present.
~External signer support is enabled by default when the GUI is configured and Boost::Process is present.~
External signer support remains disabled by default, see https://github.com/bitcoin/bitcoin/pull/21935.
ACKs for top commit:
achow101:
Code Review ACK 1c4b456e1a
hebasto:
ACK 1c4b456e1a, tested on Linux Mint 20.1 (Qt 5.12.8) with HWW `2.0.2-rc.1`.
promag:
Tested ACK 1c4b456e1a but rebased with e033ca1379, with HWI 2.0.2, with Nano S and Nano X.
meshcollider:
re-code-review ACK 1c4b456e1a
Tree-SHA512: 3503113c5c69d40adb6ce364d8e7cae23ce82d032a00474ba9aeb6202eb70f496ef4a6bf2e623e5171e524ad31ade7941a4e0e89539c64518aaec74f4562d86b
68a89d7a46
