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GetExternalSigner(): fail if multiple signers are found

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If there are multiple external signers, `GetExternalSigner()` will
just pick the first one in the list. If the user has two or more
hardware wallets connected at the same time, he might not notice this.

This PR adds a check and fails with suitable message.
This commit is contained in:
amadeuszpawlik
2022-05-28 20:40:51 +02:00
parent 8c61374ba7
commit 292b1a3e9c
7 changed files with 54 additions and 7 deletions
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4
src/qt/walletcontroller.cpp
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@@ -293,6 +293,10 @@ void CreateWalletActivity::create()
} catch (const std::runtime_error& e) {
QMessageBox::critical(nullptr, tr("Can't list signers"), e.what());
}
if (signers.size() > 1) {
QMessageBox::critical(nullptr, tr("Too many external signers found"), QString::fromStdString("More than one external signer found. Please connect only one at a time."));
signers.clear();
}
m_create_wallet_dialog->setSigners(signers);
m_create_wallet_dialog->setWindowModality(Qt::ApplicationModal);