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-rw-r--r--src/rpc/util.cpp38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/rpc/util.cpp b/src/rpc/util.cpp
index 9cdb22001f..7a9312aa03 100644
--- a/src/rpc/util.cpp
+++ b/src/rpc/util.cpp
@@ -5,6 +5,7 @@
#include <key_io.h>
#include <keystore.h>
#include <rpc/util.h>
+#include <script/descriptor.h>
#include <tinyformat.h>
#include <util/strencodings.h>
@@ -685,3 +686,40 @@ std::pair<int64_t, int64_t> ParseDescriptorRange(const UniValue& value)
}
return {low, high};
}
+
+std::vector<CScript> EvalDescriptorStringOrObject(const UniValue& scanobject, FlatSigningProvider& provider)
+{
+ 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()) {
+ UniValue desc_uni = find_value(scanobject, "desc");
+ if (desc_uni.isNull()) throw JSONRPCError(RPC_INVALID_PARAMETER, "Descriptor needs to be provided in scan object");
+ desc_str = desc_uni.get_str();
+ UniValue range_uni = find_value(scanobject, "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");
+ }
+
+ auto desc = Parse(desc_str, provider);
+ if (!desc) {
+ throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("Invalid descriptor '%s'", desc_str));
+ }
+ if (!desc->IsRange()) {
+ range.first = 0;
+ range.second = 0;
+ }
+ std::vector<CScript> ret;
+ for (int i = range.first; i <= range.second; ++i) {
+ 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));
+ }
+ std::move(scripts.begin(), scripts.end(), std::back_inserter(ret));
+ }
+ return ret;
+}