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Merge bitcoin/bitcoin#28067: descriptors: do not return top-level only funcs as sub descriptors

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dd9633b516 test: wallet, add coverage for watch-only raw sh script migration (furszy)
cc781a2180 descriptor: InferScript, do not return top-level only func as sub descriptor (furszy)
286e0c7d5e wallet: loading, log descriptor parsing error details (furszy)

Pull request description:

  Linked to #28057.

  Currently, the `InferScript` function returns an invalid descriptor when it tries to infer a p2sh-p2pkh script whose pubkey is not known by the wallet.

  This behavior occurs because the inference process bypasses the `pkh` subscript when the pubkey is not contained by the wallet (no pubkey provider), interpreting it as a `sh(addr(ADDR))` descriptor. Then, the failure arises because the `addr()` function is restricted to being used only at the top level.

  For reviewers, would recommend to start by examining the functional test to understand the context and the circumstances on which this can result in a fatal error (e.g. during the migration process).

ACKs for top commit:
  achow101:
    ACK dd9633b516
  darosior:
    utACK dd9633b516

Tree-SHA512: 61e763206c604c372019d2c36e31684f3dddf81f8b154eb9aba5cd66d8d61bda457ed4e591613eb6ce6c76cf7c3f11764abc6cd727a7c2b6414f1065783be032
This commit is contained in:
Andrew Chow
2023-07-20 11:09:10 -04:00
parent 79954903b2 dd9633b516
commit 7edce77ff3
5 changed files with 59 additions and 3 deletions
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4
src/wallet/walletdb.cpp
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@@ -794,11 +794,13 @@ static DBErrors LoadDescriptorWalletRecords(CWallet* pwallet, DatabaseBatch& bat
WalletDescriptor desc;
try {
value >> desc;
} catch (const std::ios_base::failure&) {
} catch (const std::ios_base::failure& e) {
strErr = strprintf("Error: Unrecognized descriptor found in wallet %s. ", pwallet->GetName());
strErr += (last_client > CLIENT_VERSION) ? "The wallet might had been created on a newer version. " :
"The database might be corrupted or the software version is not compatible with one of your wallet descriptors. ";
strErr += "Please try running the latest software version";
// Also include error details
strErr = strprintf("%s\nDetails: %s", strErr, e.what());
return DBErrors::UNKNOWN_DESCRIPTOR;
}
pwallet->LoadDescriptorScriptPubKeyMan(id, desc);