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// Copyright (c) 2011-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <wallet/rpc/util.h>
#include <rpc/util.h>
#include <util/translation.h>
#include <util/url.h>
#include <wallet/context.h>
#include <wallet/wallet.h>
#include <univalue.h>
namespace wallet {
static const std::string WALLET_ENDPOINT_BASE = "/wallet/";
const std::string HELP_REQUIRING_PASSPHRASE{"\nRequires wallet passphrase to be set with walletpassphrase call if wallet is encrypted.\n"};
bool GetAvoidReuseFlag(const CWallet& wallet, const UniValue& param) {
bool can_avoid_reuse = wallet.IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE);
bool avoid_reuse = param.isNull() ? can_avoid_reuse : param.get_bool();
if (avoid_reuse && !can_avoid_reuse) {
throw JSONRPCError(RPC_WALLET_ERROR, "wallet does not have the \"avoid reuse\" feature enabled");
}
return avoid_reuse;
}
/** Used by RPC commands that have an include_watchonly parameter.
* We default to true for watchonly wallets if include_watchonly isn't
* explicitly set.
*/
bool ParseIncludeWatchonly(const UniValue& include_watchonly, const CWallet& wallet)
{
if (include_watchonly.isNull()) {
// if include_watchonly isn't explicitly set, then check if we have a watchonly wallet
return wallet.IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
}
// otherwise return whatever include_watchonly was set to
return include_watchonly.get_bool();
}
bool GetWalletNameFromJSONRPCRequest(const JSONRPCRequest& request, std::string& wallet_name)
{
if (URL_DECODE && request.URI.substr(0, WALLET_ENDPOINT_BASE.size()) == WALLET_ENDPOINT_BASE) {
// wallet endpoint was used
wallet_name = URL_DECODE(request.URI.substr(WALLET_ENDPOINT_BASE.size()));
return true;
}
return false;
}
std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
{
CHECK_NONFATAL(request.mode == JSONRPCRequest::EXECUTE);
WalletContext& context = EnsureWalletContext(request.context);
std::string wallet_name;
if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
const std::shared_ptr<CWallet> pwallet = GetWallet(context, wallet_name);
if (!pwallet) throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
return pwallet;
}
size_t count{0};
auto wallet = GetDefaultWallet(context, count);
if (wallet) return wallet;
if (count == 0) {
throw JSONRPCError(
RPC_WALLET_NOT_FOUND, "No wallet is loaded. Load a wallet using loadwallet or create a new one with createwallet. (Note: A default wallet is no longer automatically created)");
}
throw JSONRPCError(RPC_WALLET_NOT_SPECIFIED,
"Wallet file not specified (must request wallet RPC through /wallet/<filename> uri-path).");
}
void EnsureWalletIsUnlocked(const CWallet& wallet)
{
if (wallet.IsLocked()) {
throw JSONRPCError(RPC_WALLET_UNLOCK_NEEDED, "Error: Please enter the wallet passphrase with walletpassphrase first.");
}
}
WalletContext& EnsureWalletContext(const std::any& context)
{
auto wallet_context = util::AnyPtr<WalletContext>(context);
if (!wallet_context) {
throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet context not found");
}
return *wallet_context;
}
// also_create should only be set to true only when the RPC is expected to add things to a blank wallet and make it no longer blank
LegacyScriptPubKeyMan& EnsureLegacyScriptPubKeyMan(CWallet& wallet, bool also_create)
{
LegacyScriptPubKeyMan* spk_man = wallet.GetLegacyScriptPubKeyMan();
if (!spk_man && also_create) {
spk_man = wallet.GetOrCreateLegacyScriptPubKeyMan();
}
if (!spk_man) {
throw JSONRPCError(RPC_WALLET_ERROR, "Only legacy wallets are supported by this command");
}
return *spk_man;
}
const LegacyScriptPubKeyMan& EnsureConstLegacyScriptPubKeyMan(const CWallet& wallet)
{
const LegacyScriptPubKeyMan* spk_man = wallet.GetLegacyScriptPubKeyMan();
if (!spk_man) {
throw JSONRPCError(RPC_WALLET_ERROR, "Only legacy wallets are supported by this command");
}
return *spk_man;
}
std::string LabelFromValue(const UniValue& value)
{
std::string label = value.get_str();
if (label == "*")
throw JSONRPCError(RPC_WALLET_INVALID_LABEL_NAME, "Invalid label name");
return label;
}
void PushParentDescriptors(const CWallet& wallet, const CScript& script_pubkey, UniValue& entry)
{
UniValue parent_descs(UniValue::VARR);
for (const auto& desc: wallet.GetWalletDescriptors(script_pubkey)) {
parent_descs.push_back(desc.descriptor->ToString());
}
entry.pushKV("parent_descs", parent_descs);
}
void HandleWalletError(const std::shared_ptr<CWallet> wallet, DatabaseStatus& status, bilingual_str& error)
{
if (!wallet) {
// Map bad format to not found, since bad format is returned when the
// wallet directory exists, but doesn't contain a data file.
RPCErrorCode code = RPC_WALLET_ERROR;
switch (status) {
case DatabaseStatus::FAILED_NOT_FOUND:
case DatabaseStatus::FAILED_BAD_FORMAT:
code = RPC_WALLET_NOT_FOUND;
break;
case DatabaseStatus::FAILED_ALREADY_LOADED:
code = RPC_WALLET_ALREADY_LOADED;
break;
case DatabaseStatus::FAILED_ALREADY_EXISTS:
code = RPC_WALLET_ALREADY_EXISTS;
break;
case DatabaseStatus::FAILED_INVALID_BACKUP_FILE:
code = RPC_INVALID_PARAMETER;
break;
default: // RPC_WALLET_ERROR is returned for all other cases.
break;
}
throw JSONRPCError(code, error.original);
}
}
} // namespace wallet
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