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Box the wallet: Add multiple keyman maps and loops

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Add wallet logic for dealing with multiple ScriptPubKeyMan instances. This
doesn't change current behavior because there is still only a single
LegacyScriptPubKeyMan. But in the future the new logic will be used to support
descriptor wallets.
This commit is contained in:
Andrew Chow
2019-10-07 14:11:34 -04:00
parent 4977c30d59
commit c729afd0a3
4 changed files with 177 additions and 44 deletions
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33
src/wallet/scriptpubkeyman.cpp
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@@ -470,6 +470,34 @@ int64_t LegacyScriptPubKeyMan::GetTimeFirstKey() const
return nTimeFirstKey;
}
const SigningProvider* LegacyScriptPubKeyMan::GetSigningProvider(const CScript& script) const
{
return this;
}
bool LegacyScriptPubKeyMan::CanProvide(const CScript& script, SignatureData& sigdata)
{
if (IsMine(script) != ISMINE_NO) {
// If it IsMine, we can always provide in some way
return true;
} else if (HaveCScript(CScriptID(script))) {
// We can still provide some stuff if we have the script, but IsMine failed because we don't have keys
return true;
} else {
// If, given the stuff in sigdata, we could make a valid sigature, then we can provide for this script
ProduceSignature(*this, DUMMY_SIGNATURE_CREATOR, script, sigdata);
if (!sigdata.signatures.empty()) {
// If we could make signatures, make sure we have a private key to actually make a signature
bool has_privkeys = false;
for (const auto& key_sig_pair : sigdata.signatures) {
has_privkeys |= HaveKey(key_sig_pair.first);
}
return has_privkeys;
}
return false;
}
}
const CKeyMetadata* LegacyScriptPubKeyMan::GetMetadata(const CTxDestination& dest) const
{
LOCK(cs_KeyStore);
@@ -491,6 +519,11 @@ const CKeyMetadata* LegacyScriptPubKeyMan::GetMetadata(const CTxDestination& des
return nullptr;
}
uint256 LegacyScriptPubKeyMan::GetID() const
{
return UINT256_ONE();
}
/**
* Update wallet first key creation time. This should be called whenever keys
* are added to the wallet, with the oldest key creation time.