diff options
Diffstat (limited to 'src/rpc/util.cpp')
| -rw-r--r-- | src/rpc/util.cpp | 162 |
1 files changed, 151 insertions, 11 deletions
diff --git a/src/rpc/util.cpp b/src/rpc/util.cpp index 40ac133186..9cdb22001f 100644 --- a/src/rpc/util.cpp +++ b/src/rpc/util.cpp @@ -4,14 +4,118 @@ #include <key_io.h> #include <keystore.h> -#include <policy/fees.h> #include <rpc/util.h> #include <tinyformat.h> #include <util/strencodings.h> -#include <validation.h> + +#include <tuple> InitInterfaces* g_rpc_interfaces = nullptr; +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) +{ + if (!value.isNum() && !value.isStr()) + throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string"); + CAmount amount; + if (!ParseFixedPoint(value.getValStr(), 8, &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); +} + +std::string HelpExampleCli(const std::string& methodname, const std::string& args) +{ + return "> bitcoin-cli " + methodname + " " + args + "\n"; +} + +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"; +} + // Converts a hex string to a public key if possible CPubKey HexToPubKey(const std::string& hex_in) { @@ -79,7 +183,7 @@ public: return UniValue(UniValue::VOBJ); } - UniValue operator()(const CKeyID& keyID) const + UniValue operator()(const PKHash& keyID) const { UniValue obj(UniValue::VOBJ); obj.pushKV("isscript", false); @@ -87,7 +191,7 @@ public: return obj; } - UniValue operator()(const CScriptID& scriptID) const + UniValue operator()(const ScriptHash& scriptID) const { UniValue obj(UniValue::VOBJ); obj.pushKV("isscript", true); @@ -130,10 +234,9 @@ UniValue DescribeAddress(const CTxDestination& dest) return boost::apply_visitor(DescribeAddressVisitor(), dest); } -unsigned int ParseConfirmTarget(const UniValue& value) +unsigned int ParseConfirmTarget(const UniValue& value, unsigned int max_target) { int target = value.get_int(); - unsigned int max_target = ::feeEstimator.HighestTargetTracked(FeeEstimateHorizon::LONG_HALFLIFE); if (target < 1 || (unsigned int)target > max_target) { throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Invalid conf_target, must be between %u - %u", 1, max_target)); } @@ -168,6 +271,10 @@ UniValue JSONRPCTransactionError(TransactionError terr, const std::string& err_s } } +/** + * 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} {} @@ -175,6 +282,10 @@ struct Section { 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}; @@ -185,16 +296,26 @@ struct Sections { m_sections.push_back(s); } + /** + * Serializing RPCArgs depends on the outer type. Only arrays and + * dictionaries can be nested in json. The top-level outer type is "named + * arguments", a mix between a dictionary and arrays. + */ enum class OuterType { ARR, OBJ, NAMED_ARG, // Only set on first recursion }; + /** + * Recursive helper to translate an RPCArg into sections + */ void Push(const RPCArg& arg, const size_t current_indent = 5, const OuterType outer_type = OuterType::NAMED_ARG) { 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: @@ -204,10 +325,10 @@ struct Sections { case RPCArg::Type::BOOL: { if (outer_type == OuterType::NAMED_ARG) return; // Nothing more to do for non-recursive types on first recursion auto left = indent; - if (arg.m_type_str.size() != 0 && outer_type == OuterType::OBJ) { + if (arg.m_type_str.size() != 0 && push_name) { left += "\"" + arg.m_name + "\": " + arg.m_type_str.at(0); } else { - left += outer_type == OuterType::OBJ ? arg.ToStringObj(/* oneline */ false) : arg.ToString(/* oneline */ false); + left += push_name ? arg.ToStringObj(/* oneline */ false) : arg.ToString(/* oneline */ false); } left += ","; PushSection({left, arg.ToDescriptionString()}); @@ -216,7 +337,7 @@ struct Sections { case RPCArg::Type::OBJ: case RPCArg::Type::OBJ_USER_KEYS: { const auto right = outer_type == OuterType::NAMED_ARG ? "" : arg.ToDescriptionString(); - PushSection({indent + "{", right}); + PushSection({indent + (push_name ? "\"" + arg.m_name + "\": " : "") + "{", right}); for (const auto& arg_inner : arg.m_inner) { Push(arg_inner, current_indent + 2, OuterType::OBJ); } @@ -228,7 +349,7 @@ struct Sections { } case RPCArg::Type::ARR: { auto left = indent; - left += outer_type == OuterType::OBJ ? "\"" + arg.m_name + "\": " : ""; + left += push_name ? "\"" + arg.m_name + "\": " : ""; left += "["; const auto right = outer_type == OuterType::NAMED_ARG ? "" : arg.ToDescriptionString(); PushSection({left, right}); @@ -244,6 +365,9 @@ struct Sections { } } + /** + * Concatenate all sections with proper padding + */ std::string ToString() const { std::string ret; @@ -532,7 +656,7 @@ std::string RPCArg::ToString(const bool oneline) const assert(false); } -std::pair<int64_t, int64_t> ParseRange(const UniValue& value) +static std::pair<int64_t, int64_t> ParseRange(const UniValue& value) { if (value.isNum()) { return {0, value.get_int64()}; @@ -545,3 +669,19 @@ std::pair<int64_t, int64_t> ParseRange(const UniValue& value) } 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}; +} |