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-rw-r--r--src/rpc/rawtransaction.cpp16
1 files changed, 13 insertions, 3 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 0925b1c0cf..391e744c90 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -396,7 +396,6 @@ CMutableTransaction ConstructTransaction(const UniValue& inputs_in, const UniVal
rawTx.vin.push_back(in);
}
- std::set<CTxDestination> destinations;
if (!outputs_is_obj) {
// Translate array of key-value pairs into dict
UniValue outputs_dict = UniValue(UniValue::VOBJ);
@@ -412,8 +411,17 @@ CMutableTransaction ConstructTransaction(const UniValue& inputs_in, const UniVal
}
outputs = std::move(outputs_dict);
}
+
+ // Duplicate checking
+ std::set<CTxDestination> destinations;
+ bool has_data{false};
+
for (const std::string& name_ : outputs.getKeys()) {
if (name_ == "data") {
+ if (has_data) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, duplicate key: data");
+ }
+ has_data = true;
std::vector<unsigned char> data = ParseHexV(outputs[name_].getValStr(), "Data");
CTxOut out(0, CScript() << OP_RETURN << data);
@@ -465,7 +473,8 @@ static UniValue createrawtransaction(const JSONRPCRequest& request)
" } \n"
" ,...\n"
" ]\n"
- "2. \"outputs\" (array, required) a json array with outputs (key-value pairs)\n"
+ "2. \"outputs\" (array, required) a json array with outputs (key-value pairs), where none of the keys are duplicated.\n"
+ "That is, each address can only appear once and there can only be one 'data' object.\n"
" [\n"
" {\n"
" \"address\": x.xxx, (obj, optional) A key-value pair. The key (string) is the bitcoin address, the value (float or string) is the amount in " + CURRENCY_UNIT + "\n"
@@ -1690,7 +1699,8 @@ UniValue createpsbt(const JSONRPCRequest& request)
" } \n"
" ,...\n"
" ]\n"
- "2. \"outputs\" (array, required) a json array with outputs (key-value pairs)\n"
+ "2. \"outputs\" (array, required) a json array with outputs (key-value pairs), where none of the keys are duplicated.\n"
+ "That is, each address can only appear once and there can only be one 'data' object.\n"
" [\n"
" {\n"
" \"address\": x.xxx, (obj, optional) A key-value pair. The key (string) is the bitcoin address, the value (float or string) is the amount in " + CURRENCY_UNIT + "\n"