Function EvalDescriptorStringOrObject

src/rpc/util.cpp:1334–1375

}

std::vector<CScript> EvalDescriptorStringOrObject(const UniValue& scanobject, FlatSigningProvider& provider, const bool expand_priv)
{
    std::string desc_str;
    std::pair<int64_t, int64_t> range = {0, 1000};
    if (scanobject.isStr()) {
        desc_str = scanobject.get_str();
    } else if (scanobject.isObject()) {
        const UniValue& desc_uni{scanobject.find_value("desc")};
        if (desc_uni.isNull()) throw JSONRPCError(RPC_INVALID_PARAMETER, "Descriptor needs to be provided in scan object");
        desc_str = desc_uni.get_str();
        const UniValue& range_uni{scanobject.find_value("range")};
        if (!range_uni.isNull()) {
            range = ParseDescriptorRange(range_uni);
        }
    } else {
        throw JSONRPCError(RPC_INVALID_PARAMETER, "Scan object needs to be either a string or an object");
    }

    std::string error;
    auto descs = Parse(desc_str, provider, error);
    if (descs.empty()) {
        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, error);
    }
    if (!descs.at(0)->IsRange()) {
        range.first = 0;
        range.second = 0;
    }
    std::vector<CScript> ret;
    for (int i = range.first; i <= range.second; ++i) {
        for (const auto& desc : descs) {
            std::vector<CScript> scripts;
            if (!desc->Expand(i, provider, scripts, provider)) {
                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Cannot derive script without private keys: '%s'", desc_str));
            }
            if (expand_priv) {
                desc->ExpandPrivate(/*pos=*/i, provider, /*out=*/provider);
            }
            std::move(scripts.begin(), scripts.end(), std::back_inserter(ret));
        }
    }
    return ret;
}

/** Convert a vector of bilingual strings to a UniValue::VARR containing their original untranslated values. */
[[nodiscard]] static UniValue BilingualStringsToUniValue(const std::vector<bilingual_str>& bilingual_strings)