diff options
Diffstat (limited to 'src/rpc/util.cpp')
| -rw-r--r-- | src/rpc/util.cpp | 305 |
1 files changed, 304 insertions, 1 deletions
diff --git a/src/rpc/util.cpp b/src/rpc/util.cpp index ba414bf3f5..b91baee4ac 100644 --- a/src/rpc/util.cpp +++ b/src/rpc/util.cpp @@ -7,7 +7,9 @@ #include <rpc/protocol.h> #include <rpc/util.h> #include <tinyformat.h> -#include <utilstrencodings.h> +#include <util/strencodings.h> + +InitInterfaces* g_rpc_interfaces = nullptr; // Converts a hex string to a public key if possible CPubKey HexToPubKey(const std::string& hex_in) @@ -126,3 +128,304 @@ UniValue DescribeAddress(const CTxDestination& dest) { return boost::apply_visitor(DescribeAddressVisitor(), dest); } + +struct Section { + Section(const std::string& left, const std::string& right) + : m_left{left}, m_right{right} {} + const std::string m_left; + const std::string m_right; +}; + +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); + } + + enum class OuterType { + ARR, + OBJ, + NAMED_ARG, // Only set on first recursion + }; + + 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, ' '); + switch (arg.m_type) { + case RPCArg::Type::STR_HEX: + case RPCArg::Type::STR: + case RPCArg::Type::NUM: + case RPCArg::Type::AMOUNT: + 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) { + 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 += ","; + PushSection({left, arg.ToDescriptionString(/* implicitly_required */ outer_type == OuterType::ARR)}); + break; + } + case RPCArg::Type::OBJ: + case RPCArg::Type::OBJ_USER_KEYS: { + const auto right = outer_type == OuterType::NAMED_ARG ? "" : arg.ToDescriptionString(/* implicitly_required */ outer_type == OuterType::ARR); + PushSection({indent + "{", 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::NAMED_ARG ? "," : ""), ""}); + break; + } + case RPCArg::Type::ARR: { + auto left = indent; + left += outer_type == OuterType::OBJ ? "\"" + arg.m_name + "\": " : ""; + left += "["; + const auto right = outer_type == OuterType::NAMED_ARG ? "" : arg.ToDescriptionString(/* implicitly_required */ outer_type == OuterType::ARR); + 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::NAMED_ARG ? "," : ""), ""}); + break; + } + + // no default case, so the compiler can warn about missing cases + } + } + + std::string ToString() const + { + std::string ret; + const size_t pad = m_max_pad + 4; + for (const auto& s : m_sections) { + 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(const std::string& name, const std::string& description, const std::vector<RPCArg>& args) + : m_name{name}, m_description{description}, m_args{args} +{ + std::set<std::string> named_args; + for (const auto& arg : m_args) { + // Should have unique named arguments + assert(named_args.insert(arg.m_name).second); + } +} + +std::string RPCHelpMan::ToString() const +{ + std::string ret; + + // Oneline summary + ret += m_name; + bool was_optional{false}; + for (const auto& arg : m_args) { + ret += " "; + if (arg.m_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 (i == 0) ret += "\nArguments:\n"; + + // Push named argument name and description + sections.m_sections.emplace_back(std::to_string(i + 1) + ". " + arg.m_name, 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(); + + return ret; +} + +std::string RPCArg::ToDescriptionString(const bool implicitly_required) 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::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 (!implicitly_required) { + ret += ", "; + if (m_optional) { + ret += "optional"; + if (!m_default_value.empty()) { + ret += ", default=" + m_default_value; + } else { + // TODO enable this assert, when all optional parameters have their default value documented + //assert(false); + } + } else { + ret += "required"; + assert(m_default_value.empty()); // Default value is ignored, and must not be present + } + } + ret += ")"; + ret += m_description.empty() ? "" : " " + m_description; + return ret; +} + +std::string RPCArg::ToStringObj(const bool oneline) const +{ + std::string res; + res += "\""; + res += m_name; + 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::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 + assert(false); + + // no default case, so the compiler can warn about missing cases + } + assert(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 "\"" + m_name + "\""; + } + case Type::NUM: + case Type::AMOUNT: + case Type::BOOL: { + return m_name; + } + case Type::OBJ: + case Type::OBJ_USER_KEYS: { + std::string res; + for (size_t i = 0; i < m_inner.size();) { + res += m_inner[i].ToStringObj(oneline); + if (++i < m_inner.size()) res += ","; + } + 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 + } + assert(false); +} |