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util.cpp
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1038 lines (950 loc) · 33.9 KB
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// Copyright (c) 2017-2021 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 <key_io.h>
#include <outputtype.h>
#include <rpc/util.h>
#include <script/descriptor.h>
#include <script/signingprovider.h>
#include <tinyformat.h>
#include <util/strencodings.h>
#include <util/string.h>
#include <util/translation.h>
#include <tuple>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
const std::string UNIX_EPOCH_TIME = "UNIX epoch time";
const std::string EXAMPLE_ADDRESS[2] = {"bc1q09vm5lfy0j5reeulh4x5752q25uqqvz34hufdl", "bc1q02ad21edsxd23d32dfgqqsz4vv4nmtfzuklhy3"};
void RPCTypeCheck(const UniValue& params,
const std::list<UniValueType>& typesExpected,
bool fAllowNull)
{
unsigned int i = 0;
for (const UniValueType& t : typesExpected) {
if (params.size() <= i)
break;
const UniValue& v = params[i];
if (!(fAllowNull && v.isNull())) {
RPCTypeCheckArgument(v, t);
}
i++;
}
}
void RPCTypeCheckArgument(const UniValue& value, const UniValueType& typeExpected)
{
if (!typeExpected.typeAny && value.type() != typeExpected.type) {
throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Expected type %s, got %s", uvTypeName(typeExpected.type), uvTypeName(value.type())));
}
}
void RPCTypeCheckObj(const UniValue& o,
const std::map<std::string, UniValueType>& typesExpected,
bool fAllowNull,
bool fStrict)
{
for (const auto& t : typesExpected) {
const UniValue& v = find_value(o, t.first);
if (!fAllowNull && v.isNull())
throw JSONRPCError(RPC_TYPE_ERROR, strprintf("Missing %s", t.first));
if (!(t.second.typeAny || v.type() == t.second.type || (fAllowNull && v.isNull()))) {
std::string err = strprintf("Expected type %s for %s, got %s",
uvTypeName(t.second.type), t.first, uvTypeName(v.type()));
throw JSONRPCError(RPC_TYPE_ERROR, err);
}
}
if (fStrict)
{
for (const std::string& k : o.getKeys())
{
if (typesExpected.count(k) == 0)
{
std::string err = strprintf("Unexpected key %s", k);
throw JSONRPCError(RPC_TYPE_ERROR, err);
}
}
}
}
CAmount AmountFromValue(const UniValue& value, int decimals)
{
if (!value.isNum() && !value.isStr())
throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string");
CAmount amount;
if (!ParseFixedPoint(value.getValStr(), decimals, &amount))
throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
if (!MoneyRange(amount))
throw JSONRPCError(RPC_TYPE_ERROR, "Amount out of range");
return amount;
}
uint256 ParseHashV(const UniValue& v, std::string strName)
{
std::string strHex(v.get_str());
if (64 != strHex.length())
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("%s must be of length %d (not %d, for '%s')", strName, 64, strHex.length(), strHex));
if (!IsHex(strHex)) // Note: IsHex("") is false
throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
return uint256S(strHex);
}
uint256 ParseHashO(const UniValue& o, std::string strKey)
{
return ParseHashV(find_value(o, strKey), strKey);
}
std::vector<unsigned char> ParseHexV(const UniValue& v, std::string strName)
{
std::string strHex;
if (v.isStr())
strHex = v.get_str();
if (!IsHex(strHex))
throw JSONRPCError(RPC_INVALID_PARAMETER, strName+" must be hexadecimal string (not '"+strHex+"')");
return ParseHex(strHex);
}
std::vector<unsigned char> ParseHexO(const UniValue& o, std::string strKey)
{
return ParseHexV(find_value(o, strKey), strKey);
}
namespace {
/**
* Quote an argument for shell.
*
* @note This is intended for help, not for security-sensitive purposes.
*/
std::string ShellQuote(const std::string& s)
{
std::string result;
result.reserve(s.size() * 2);
for (const char ch: s) {
if (ch == '\'') {
result += "'\''";
} else {
result += ch;
}
}
return "'" + result + "'";
}
/**
* Shell-quotes the argument if it needs quoting, else returns it literally, to save typing.
*
* @note This is intended for help, not for security-sensitive purposes.
*/
std::string ShellQuoteIfNeeded(const std::string& s)
{
for (const char ch: s) {
if (ch == ' ' || ch == '\'' || ch == '"') {
return ShellQuote(s);
}
}
return s;
}
}
std::string HelpExampleCli(const std::string& methodname, const std::string& args)
{
return "> bitcoin-cli " + methodname + " " + args + "\n";
}
std::string HelpExampleCliNamed(const std::string& methodname, const RPCArgList& args)
{
std::string result = "> bitcoin-cli -named " + methodname;
for (const auto& argpair: args) {
const auto& value = argpair.second.isStr()
? argpair.second.get_str()
: argpair.second.write();
result += " " + argpair.first + "=" + ShellQuoteIfNeeded(value);
}
result += "\n";
return result;
}
std::string HelpExampleRpc(const std::string& methodname, const std::string& args)
{
return "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\": \"curltest\", "
"\"method\": \"" + methodname + "\", \"params\": [" + args + "]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/\n";
}
std::string HelpExampleRpcNamed(const std::string& methodname, const RPCArgList& args)
{
UniValue params(UniValue::VOBJ);
for (const auto& param: args) {
params.pushKV(param.first, param.second);
}
return "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", \"id\": \"curltest\", "
"\"method\": \"" + methodname + "\", \"params\": " + params.write() + "}' -H 'content-type: text/plain;' http://127.0.0.1:8332/\n";
}
// Converts a hex string to a public key if possible
CPubKey HexToPubKey(const std::string& hex_in)
{
if (!IsHex(hex_in)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid public key: " + hex_in);
}
CPubKey vchPubKey(ParseHex(hex_in));
if (!vchPubKey.IsFullyValid()) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid public key: " + hex_in);
}
return vchPubKey;
}
// Retrieves a public key for an address from the given FillableSigningProvider
CPubKey AddrToPubKey(const FillableSigningProvider& keystore, const std::string& addr_in)
{
CTxDestination dest = DecodeDestination(addr_in);
if (!IsValidDestination(dest)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address: " + addr_in);
}
CKeyID key = GetKeyForDestination(keystore, dest);
if (key.IsNull()) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("%s does not refer to a key", addr_in));
}
CPubKey vchPubKey;
if (!keystore.GetPubKey(key, vchPubKey)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, strprintf("no full public key for address %s", addr_in));
}
if (!vchPubKey.IsFullyValid()) {
throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet contains an invalid public key");
}
return vchPubKey;
}
// Creates a multisig address from a given list of public keys, number of signatures required, and the address type
CTxDestination AddAndGetMultisigDestination(const int required, const std::vector<CPubKey>& pubkeys, OutputType type, FillableSigningProvider& keystore, CScript& script_out)
{
// Gather public keys
if (required < 1) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "a multisignature address must require at least one key to redeem");
}
if ((int)pubkeys.size() < required) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("not enough keys supplied (got %u keys, but need at least %d to redeem)", pubkeys.size(), required));
}
if (pubkeys.size() > MAX_PUBKEYS_PER_MULTISIG) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Number of keys involved in the multisignature address creation > %d\nReduce the number", MAX_PUBKEYS_PER_MULTISIG));
}
script_out = GetScriptForMultisig(required, pubkeys);
// Check if any keys are uncompressed. If so, the type is legacy
for (const CPubKey& pk : pubkeys) {
if (!pk.IsCompressed()) {
type = OutputType::LEGACY;
break;
}
}
if (type == OutputType::LEGACY && script_out.size() > MAX_SCRIPT_ELEMENT_SIZE) {
throw JSONRPCError(RPC_INVALID_PARAMETER, (strprintf("redeemScript exceeds size limit: %d > %d", script_out.size(), MAX_SCRIPT_ELEMENT_SIZE)));
}
// Make the address
CTxDestination dest = AddAndGetDestinationForScript(keystore, script_out, type);
return dest;
}
class DescribeAddressVisitor
{
public:
explicit DescribeAddressVisitor() {}
UniValue operator()(const CNoDestination& dest) const
{
return UniValue(UniValue::VOBJ);
}
UniValue operator()(const PKHash& keyID) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("isscript", false);
obj.pushKV("iswitness", false);
return obj;
}
UniValue operator()(const ScriptHash& scriptID) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("isscript", true);
obj.pushKV("iswitness", false);
return obj;
}
UniValue operator()(const WitnessV0KeyHash& id) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("isscript", false);
obj.pushKV("iswitness", true);
obj.pushKV("witness_version", 0);
obj.pushKV("witness_program", HexStr(id));
return obj;
}
UniValue operator()(const WitnessV0ScriptHash& id) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("isscript", true);
obj.pushKV("iswitness", true);
obj.pushKV("witness_version", 0);
obj.pushKV("witness_program", HexStr(id));
return obj;
}
UniValue operator()(const WitnessV1Taproot& tap) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("isscript", true);
obj.pushKV("iswitness", true);
obj.pushKV("witness_version", 1);
obj.pushKV("witness_program", HexStr(tap));
return obj;
}
UniValue operator()(const WitnessUnknown& id) const
{
UniValue obj(UniValue::VOBJ);
obj.pushKV("iswitness", true);
obj.pushKV("witness_version", (int)id.version);
obj.pushKV("witness_program", HexStr(Span<const unsigned char>(id.program, id.length)));
return obj;
}
};
UniValue DescribeAddress(const CTxDestination& dest)
{
return std::visit(DescribeAddressVisitor(), dest);
}
unsigned int ParseConfirmTarget(const UniValue& value, unsigned int max_target)
{
const int target{value.get_int()};
const unsigned int unsigned_target{static_cast<unsigned int>(target)};
if (target < 1 || unsigned_target > max_target) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid conf_target, must be between %u and %u", 1, max_target));
}
return unsigned_target;
}
RPCErrorCode RPCErrorFromTransactionError(TransactionError terr)
{
switch (terr) {
case TransactionError::MEMPOOL_REJECTED:
return RPC_TRANSACTION_REJECTED;
case TransactionError::ALREADY_IN_CHAIN:
return RPC_TRANSACTION_ALREADY_IN_CHAIN;
case TransactionError::P2P_DISABLED:
return RPC_CLIENT_P2P_DISABLED;
case TransactionError::INVALID_PSBT:
case TransactionError::PSBT_MISMATCH:
return RPC_INVALID_PARAMETER;
case TransactionError::SIGHASH_MISMATCH:
return RPC_DESERIALIZATION_ERROR;
default: break;
}
return RPC_TRANSACTION_ERROR;
}
UniValue JSONRPCTransactionError(TransactionError terr, const std::string& err_string)
{
if (err_string.length() > 0) {
return JSONRPCError(RPCErrorFromTransactionError(terr), err_string);
} else {
return JSONRPCError(RPCErrorFromTransactionError(terr), TransactionErrorString(terr).original);
}
}
/**
* A pair of strings that can be aligned (through padding) with other Sections
* later on
*/
struct Section {
Section(const std::string& left, const std::string& right)
: m_left{left}, m_right{right} {}
std::string m_left;
const std::string m_right;
};
/**
* Keeps track of RPCArgs by transforming them into sections for the purpose
* of serializing everything to a single string
*/
struct Sections {
std::vector<Section> m_sections;
size_t m_max_pad{0};
void PushSection(const Section& s)
{
m_max_pad = std::max(m_max_pad, s.m_left.size());
m_sections.push_back(s);
}
/**
* Recursive helper to translate an RPCArg into sections
*/
void Push(const RPCArg& arg, const size_t current_indent = 5, const OuterType outer_type = OuterType::NONE)
{
const auto indent = std::string(current_indent, ' ');
const auto indent_next = std::string(current_indent + 2, ' ');
const bool push_name{outer_type == OuterType::OBJ}; // Dictionary keys must have a name
switch (arg.m_type) {
case RPCArg::Type::STR_HEX:
case RPCArg::Type::STR:
case RPCArg::Type::NUM:
case RPCArg::Type::AMOUNT:
case RPCArg::Type::RANGE:
case RPCArg::Type::BOOL: {
if (outer_type == OuterType::NONE) return; // Nothing more to do for non-recursive types on first recursion
auto left = indent;
if (arg.m_type_str.size() != 0 && push_name) {
left += "\"" + arg.GetName() + "\": " + arg.m_type_str.at(0);
} else {
left += push_name ? arg.ToStringObj(/* oneline */ false) : arg.ToString(/* oneline */ false);
}
left += ",";
PushSection({left, arg.ToDescriptionString()});
break;
}
case RPCArg::Type::OBJ:
case RPCArg::Type::OBJ_USER_KEYS: {
const auto right = outer_type == OuterType::NONE ? "" : arg.ToDescriptionString();
PushSection({indent + (push_name ? "\"" + arg.GetName() + "\": " : "") + "{", right});
for (const auto& arg_inner : arg.m_inner) {
Push(arg_inner, current_indent + 2, OuterType::OBJ);
}
if (arg.m_type != RPCArg::Type::OBJ) {
PushSection({indent_next + "...", ""});
}
PushSection({indent + "}" + (outer_type != OuterType::NONE ? "," : ""), ""});
break;
}
case RPCArg::Type::ARR: {
auto left = indent;
left += push_name ? "\"" + arg.GetName() + "\": " : "";
left += "[";
const auto right = outer_type == OuterType::NONE ? "" : arg.ToDescriptionString();
PushSection({left, right});
for (const auto& arg_inner : arg.m_inner) {
Push(arg_inner, current_indent + 2, OuterType::ARR);
}
PushSection({indent_next + "...", ""});
PushSection({indent + "]" + (outer_type != OuterType::NONE ? "," : ""), ""});
break;
}
} // no default case, so the compiler can warn about missing cases
}
/**
* Concatenate all sections with proper padding
*/
std::string ToString() const
{
std::string ret;
const size_t pad = m_max_pad + 4;
for (const auto& s : m_sections) {
// The left part of a section is assumed to be a single line, usually it is the name of the JSON struct or a
// brace like {, }, [, or ]
CHECK_NONFATAL(s.m_left.find('\n') == std::string::npos);
if (s.m_right.empty()) {
ret += s.m_left;
ret += "\n";
continue;
}
std::string left = s.m_left;
left.resize(pad, ' ');
ret += left;
// Properly pad after newlines
std::string right;
size_t begin = 0;
size_t new_line_pos = s.m_right.find_first_of('\n');
while (true) {
right += s.m_right.substr(begin, new_line_pos - begin);
if (new_line_pos == std::string::npos) {
break; //No new line
}
right += "\n" + std::string(pad, ' ');
begin = s.m_right.find_first_not_of(' ', new_line_pos + 1);
if (begin == std::string::npos) {
break; // Empty line
}
new_line_pos = s.m_right.find_first_of('\n', begin + 1);
}
ret += right;
ret += "\n";
}
return ret;
}
};
RPCHelpMan::RPCHelpMan(std::string name, std::string description, std::vector<RPCArg> args, RPCResults results, RPCExamples examples)
: RPCHelpMan{std::move(name), std::move(description), std::move(args), std::move(results), std::move(examples), nullptr} {}
RPCHelpMan::RPCHelpMan(std::string name, std::string description, std::vector<RPCArg> args, RPCResults results, RPCExamples examples, RPCMethodImpl fun)
: m_name{std::move(name)},
m_fun{std::move(fun)},
m_description{std::move(description)},
m_args{std::move(args)},
m_results{std::move(results)},
m_examples{std::move(examples)}
{
std::set<std::string> named_args;
for (const auto& arg : m_args) {
std::vector<std::string> names;
boost::split(names, arg.m_names, boost::is_any_of("|"));
// Should have unique named arguments
for (const std::string& name : names) {
CHECK_NONFATAL(named_args.insert(name).second);
}
// Default value type should match argument type only when defined
if (arg.m_fallback.index() == 2) {
const RPCArg::Type type = arg.m_type;
switch (std::get<RPCArg::Default>(arg.m_fallback).getType()) {
case UniValue::VOBJ:
CHECK_NONFATAL(type == RPCArg::Type::OBJ);
break;
case UniValue::VARR:
CHECK_NONFATAL(type == RPCArg::Type::ARR);
break;
case UniValue::VSTR:
CHECK_NONFATAL(type == RPCArg::Type::STR || type == RPCArg::Type::STR_HEX || type == RPCArg::Type::AMOUNT);
break;
case UniValue::VNUM:
CHECK_NONFATAL(type == RPCArg::Type::NUM || type == RPCArg::Type::AMOUNT || type == RPCArg::Type::RANGE);
break;
case UniValue::VBOOL:
CHECK_NONFATAL(type == RPCArg::Type::BOOL);
break;
case UniValue::VNULL:
// Null values are accepted in all arguments
break;
default:
CHECK_NONFATAL(false);
break;
}
}
}
}
std::string RPCResults::ToDescriptionString() const
{
std::string result;
for (const auto& r : m_results) {
if (r.m_type == RPCResult::Type::ANY) continue; // for testing only
if (r.m_cond.empty()) {
result += "\nResult:\n";
} else {
result += "\nResult (" + r.m_cond + "):\n";
}
Sections sections;
r.ToSections(sections);
result += sections.ToString();
}
return result;
}
std::string RPCExamples::ToDescriptionString() const
{
return m_examples.empty() ? m_examples : "\nExamples:\n" + m_examples;
}
UniValue RPCHelpMan::HandleRequest(const JSONRPCRequest& request) const
{
if (request.mode == JSONRPCRequest::GET_ARGS) {
return GetArgMap();
}
/*
* Check if the given request is valid according to this command or if
* the user is asking for help information, and throw help when appropriate.
*/
if (request.mode == JSONRPCRequest::GET_HELP || !IsValidNumArgs(request.params.size())) {
throw std::runtime_error(ToString());
}
const UniValue ret = m_fun(*this, request);
CHECK_NONFATAL(std::any_of(m_results.m_results.begin(), m_results.m_results.end(), [ret](const RPCResult& res) { return res.MatchesType(ret); }));
return ret;
}
bool RPCHelpMan::IsValidNumArgs(size_t num_args) const
{
size_t num_required_args = 0;
for (size_t n = m_args.size(); n > 0; --n) {
if (!m_args.at(n - 1).IsOptional()) {
num_required_args = n;
break;
}
}
return num_required_args <= num_args && num_args <= m_args.size();
}
std::vector<std::string> RPCHelpMan::GetArgNames() const
{
std::vector<std::string> ret;
for (const auto& arg : m_args) {
ret.emplace_back(arg.m_names);
}
return ret;
}
std::string RPCHelpMan::ToString() const
{
std::string ret;
// Oneline summary
ret += m_name;
bool was_optional{false};
for (const auto& arg : m_args) {
if (arg.m_hidden) break; // Any arg that follows is also hidden
const bool optional = arg.IsOptional();
ret += " ";
if (optional) {
if (!was_optional) ret += "( ";
was_optional = true;
} else {
if (was_optional) ret += ") ";
was_optional = false;
}
ret += arg.ToString(/* oneline */ true);
}
if (was_optional) ret += " )";
ret += "\n";
// Description
ret += m_description;
// Arguments
Sections sections;
for (size_t i{0}; i < m_args.size(); ++i) {
const auto& arg = m_args.at(i);
if (arg.m_hidden) break; // Any arg that follows is also hidden
if (i == 0) ret += "\nArguments:\n";
// Push named argument name and description
sections.m_sections.emplace_back(::ToString(i + 1) + ". " + arg.GetFirstName(), arg.ToDescriptionString());
sections.m_max_pad = std::max(sections.m_max_pad, sections.m_sections.back().m_left.size());
// Recursively push nested args
sections.Push(arg);
}
ret += sections.ToString();
// Result
ret += m_results.ToDescriptionString();
// Examples
ret += m_examples.ToDescriptionString();
return ret;
}
UniValue RPCHelpMan::GetArgMap() const
{
UniValue arr{UniValue::VARR};
for (int i{0}; i < int(m_args.size()); ++i) {
const auto& arg = m_args.at(i);
std::vector<std::string> arg_names;
boost::split(arg_names, arg.m_names, boost::is_any_of("|"));
for (const auto& arg_name : arg_names) {
UniValue map{UniValue::VARR};
map.push_back(m_name);
map.push_back(i);
map.push_back(arg_name);
map.push_back(arg.m_type == RPCArg::Type::STR ||
arg.m_type == RPCArg::Type::STR_HEX);
arr.push_back(map);
}
}
return arr;
}
std::string RPCArg::GetFirstName() const
{
return m_names.substr(0, m_names.find("|"));
}
std::string RPCArg::GetName() const
{
CHECK_NONFATAL(std::string::npos == m_names.find("|"));
return m_names;
}
bool RPCArg::IsOptional() const
{
if (m_fallback.index() != 0) {
return true;
} else {
return RPCArg::Optional::NO != std::get<RPCArg::Optional>(m_fallback);
}
}
std::string RPCArg::ToDescriptionString() const
{
std::string ret;
ret += "(";
if (m_type_str.size() != 0) {
ret += m_type_str.at(1);
} else {
switch (m_type) {
case Type::STR_HEX:
case Type::STR: {
ret += "string";
break;
}
case Type::NUM: {
ret += "numeric";
break;
}
case Type::AMOUNT: {
ret += "numeric or string";
break;
}
case Type::RANGE: {
ret += "numeric or array";
break;
}
case Type::BOOL: {
ret += "boolean";
break;
}
case Type::OBJ:
case Type::OBJ_USER_KEYS: {
ret += "json object";
break;
}
case Type::ARR: {
ret += "json array";
break;
}
} // no default case, so the compiler can warn about missing cases
}
if (m_fallback.index() == 1) {
ret += ", optional, default=" + std::get<RPCArg::DefaultHint>(m_fallback);
} else if (m_fallback.index() == 2) {
ret += ", optional, default=" + std::get<RPCArg::Default>(m_fallback).write();
} else {
switch (std::get<RPCArg::Optional>(m_fallback)) {
case RPCArg::Optional::OMITTED: {
// nothing to do. Element is treated as if not present and has no default value
break;
}
case RPCArg::Optional::OMITTED_NAMED_ARG: {
ret += ", optional"; // Default value is "null"
break;
}
case RPCArg::Optional::NO: {
ret += ", required";
break;
}
} // no default case, so the compiler can warn about missing cases
}
ret += ")";
ret += m_description.empty() ? "" : " " + m_description;
return ret;
}
void RPCResult::ToSections(Sections& sections, const OuterType outer_type, const int current_indent) const
{
// Indentation
const std::string indent(current_indent, ' ');
const std::string indent_next(current_indent + 2, ' ');
// Elements in a JSON structure (dictionary or array) are separated by a comma
const std::string maybe_separator{outer_type != OuterType::NONE ? "," : ""};
// The key name if recursed into an dictionary
const std::string maybe_key{
outer_type == OuterType::OBJ ?
"\"" + this->m_key_name + "\" : " :
""};
// Format description with type
const auto Description = [&](const std::string& type) {
return "(" + type + (this->m_optional ? ", optional" : "") + ")" +
(this->m_description.empty() ? "" : " " + this->m_description);
};
switch (m_type) {
case Type::ELISION: {
// If the inner result is empty, use three dots for elision
sections.PushSection({indent + "..." + maybe_separator, m_description});
return;
}
case Type::ANY: {
CHECK_NONFATAL(false); // Only for testing
}
case Type::NONE: {
sections.PushSection({indent + "null" + maybe_separator, Description("json null")});
return;
}
case Type::STR: {
sections.PushSection({indent + maybe_key + "\"str\"" + maybe_separator, Description("string")});
return;
}
case Type::STR_AMOUNT: {
sections.PushSection({indent + maybe_key + "n" + maybe_separator, Description("numeric")});
return;
}
case Type::STR_HEX: {
sections.PushSection({indent + maybe_key + "\"hex\"" + maybe_separator, Description("string")});
return;
}
case Type::NUM: {
sections.PushSection({indent + maybe_key + "n" + maybe_separator, Description("numeric")});
return;
}
case Type::NUM_TIME: {
sections.PushSection({indent + maybe_key + "xxx" + maybe_separator, Description("numeric")});
return;
}
case Type::BOOL: {
sections.PushSection({indent + maybe_key + "true|false" + maybe_separator, Description("boolean")});
return;
}
case Type::ARR_FIXED:
case Type::ARR: {
sections.PushSection({indent + maybe_key + "[", Description("json array")});
for (const auto& i : m_inner) {
i.ToSections(sections, OuterType::ARR, current_indent + 2);
}
CHECK_NONFATAL(!m_inner.empty());
if (m_type == Type::ARR && m_inner.back().m_type != Type::ELISION) {
sections.PushSection({indent_next + "...", ""});
} else {
// Remove final comma, which would be invalid JSON
sections.m_sections.back().m_left.pop_back();
}
sections.PushSection({indent + "]" + maybe_separator, ""});
return;
}
case Type::OBJ_DYN:
case Type::OBJ: {
sections.PushSection({indent + maybe_key + "{", Description("json object")});
for (const auto& i : m_inner) {
i.ToSections(sections, OuterType::OBJ, current_indent + 2);
}
CHECK_NONFATAL(!m_inner.empty());
if (m_type == Type::OBJ_DYN && m_inner.back().m_type != Type::ELISION) {
// If the dictionary keys are dynamic, use three dots for continuation
sections.PushSection({indent_next + "...", ""});
} else {
// Remove final comma, which would be invalid JSON
sections.m_sections.back().m_left.pop_back();
}
sections.PushSection({indent + "}" + maybe_separator, ""});
return;
}
} // no default case, so the compiler can warn about missing cases
CHECK_NONFATAL(false);
}
bool RPCResult::MatchesType(const UniValue& result) const
{
switch (m_type) {
case Type::ELISION: {
return false;
}
case Type::ANY: {
return true;
}
case Type::NONE: {
return UniValue::VNULL == result.getType();
}
case Type::STR:
case Type::STR_HEX: {
return UniValue::VSTR == result.getType();
}
case Type::NUM:
case Type::STR_AMOUNT:
case Type::NUM_TIME: {
return UniValue::VNUM == result.getType();
}
case Type::BOOL: {
return UniValue::VBOOL == result.getType();
}
case Type::ARR_FIXED:
case Type::ARR: {
return UniValue::VARR == result.getType();
}
case Type::OBJ_DYN:
case Type::OBJ: {
return UniValue::VOBJ == result.getType();
}
} // no default case, so the compiler can warn about missing cases
CHECK_NONFATAL(false);
}
std::string RPCArg::ToStringObj(const bool oneline) const
{
std::string res;
res += "\"";
res += GetFirstName();
if (oneline) {
res += "\":";
} else {
res += "\": ";
}
switch (m_type) {
case Type::STR:
return res + "\"str\"";
case Type::STR_HEX:
return res + "\"hex\"";
case Type::NUM:
return res + "n";
case Type::RANGE:
return res + "n or [n,n]";
case Type::AMOUNT:
return res + "amount";
case Type::BOOL:
return res + "bool";
case Type::ARR:
res += "[";
for (const auto& i : m_inner) {
res += i.ToString(oneline) + ",";
}
return res + "...]";
case Type::OBJ:
case Type::OBJ_USER_KEYS:
// Currently unused, so avoid writing dead code
CHECK_NONFATAL(false);
} // no default case, so the compiler can warn about missing cases
CHECK_NONFATAL(false);
}
std::string RPCArg::ToString(const bool oneline) const
{
if (oneline && !m_oneline_description.empty()) return m_oneline_description;
switch (m_type) {
case Type::STR_HEX:
case Type::STR: {
return "\"" + GetFirstName() + "\"";
}
case Type::NUM:
case Type::RANGE:
case Type::AMOUNT:
case Type::BOOL: {
return GetFirstName();
}
case Type::OBJ:
case Type::OBJ_USER_KEYS: {
const std::string res = Join(m_inner, ",", [&](const RPCArg& i) { return i.ToStringObj(oneline); });
if (m_type == Type::OBJ) {
return "{" + res + "}";
} else {
return "{" + res + ",...}";
}
}
case Type::ARR: {
std::string res;
for (const auto& i : m_inner) {
res += i.ToString(oneline) + ",";
}
return "[" + res + "...]";
}
} // no default case, so the compiler can warn about missing cases
CHECK_NONFATAL(false);
}
static std::pair<int64_t, int64_t> ParseRange(const UniValue& value)
{
if (value.isNum()) {
return {0, value.get_int64()};
}
if (value.isArray() && value.size() == 2 && value[0].isNum() && value[1].isNum()) {
int64_t low = value[0].get_int64();
int64_t high = value[1].get_int64();
if (low > high) throw JSONRPCError(RPC_INVALID_PARAMETER, "Range specified as [begin,end] must not have begin after end");
return {low, high};
}
throw JSONRPCError(RPC_INVALID_PARAMETER, "Range must be specified as end or as [begin,end]");
}
std::pair<int64_t, int64_t> ParseDescriptorRange(const UniValue& value)
{
int64_t low, high;
std::tie(low, high) = ParseRange(value);
if (low < 0) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Range should be greater or equal than 0");
}
if ((high >> 31) != 0) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "End of range is too high");
}
if (high >= low + 1000000) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Range is too large");
}
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();