-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Author : Maxim Mamontov <faust@stargazer.dp.ua>
- */
-
-#include "config.h"
-
-#include "stg/common.h"
-
-#include <vector>
-#include <stdexcept>
-
-#include <strings.h> // strncasecmp
-
-using STG::Config;
-
-namespace
-{
-
-struct ParserError : public std::runtime_error
-{
- ParserError(size_t pos, const std::string& message)
- : runtime_error("Parsing error at position " + x2str(pos) + ". " + message),
- position(pos),
- error(message)
- {}
- virtual ~ParserError() throw() {}
-
- size_t position;
- std::string error;
-};
-
-size_t skipSpaces(const std::string& value, size_t start)
-{
- while (start < value.length() && std::isspace(value[start]))
- ++start;
- return start;
-}
-
-size_t checkChar(const std::string& value, size_t start, char ch)
-{
- if (start >= value.length())
- throw ParserError(start, "Unexpected end of string. Expected '" + std::string(1, ch) + "'.");
- if (value[start] != ch)
- throw ParserError(start, "Expected '" + std::string(1, ch) + "', got '" + std::string(1, value[start]) + "'.");
- return start + 1;
-}
-
-std::pair<size_t, std::string> readString(const std::string& value, size_t start)
-{
- std::string dest;
- while (start < value.length() && !std::isspace(value[start]))
- dest.push_back(value[start++]);
- if (dest.empty()) {
- if (start == value.length())
- throw ParserError(start, "Unexpected end of string. Expected string.");
- else
- throw ParserError(start, "Unexpected whitespace. Expected string.");
- }
- return std::make_pair(start, dest);
-}
-
-Config::Pairs toPairs(const std::vector<std::string>& values)
-{
- if (values.empty())
- return Config::Pairs();
- std::string value(values[0]);
- Config::Pairs res;
- size_t start = 0;
- while (start < value.size()) {
- Config::Pair pair;
- start = skipSpaces(value, start);
- size_t pairStart = start;
- start = checkChar(value, start, '(');
- std::pair<size_t, std::string> key = readString(value, start);
- start = key.first;
- pair.first = key.second;
- start = skipSpaces(value, start);
- start = checkChar(value, start, ',');
- start = skipSpaces(value, start);
- std::pair<size_t, std::string> val = readString(value, start);
- start = key.first;
- pair.second = val.second;
- start = skipSpaces(value, start);
- start = checkChar(value, start, ')');
- if (res.find(pair.first) != res.end())
- throw ParserError(pairStart, "Duplicate field.");
- res.insert(pair);
- }
- return res;
-}
-
-bool toBool(const std::vector<std::string>& values)
-{
- if (values.empty())
- return false;
- std::string value(values[0]);
- return strncasecmp(value.c_str(), "yes", 3) == 0;
-}
-
-std::string toString(const std::vector<std::string>& values)
-{
- if (values.empty())
- return "";
- return values[0];
-}
-
-template <typename T>
-T toInt(const std::vector<std::string>& values)
-{
- if (values.empty())
- return 0;
- T res = 0;
- if (str2x(values[0], res) == 0)
- return res;
- return 0;
-}
-
-Config::Pairs parseVector(const std::string& paramName, const MODULE_SETTINGS& params)
-{
- for (size_t i = 0; i < params.moduleParams.size(); ++i)
- if (params.moduleParams[i].param == paramName)
- return toPairs(params.moduleParams[i].value);
- return Config::Pairs();
-}
-
-bool parseBool(const std::string& paramName, const MODULE_SETTINGS& params)
-{
- for (size_t i = 0; i < params.moduleParams.size(); ++i)
- if (params.moduleParams[i].param == paramName)
- return toBool(params.moduleParams[i].value);
- return false;
-}
-
-std::string parseString(const std::string& paramName, const MODULE_SETTINGS& params)
-{
- for (size_t i = 0; i < params.moduleParams.size(); ++i)
- if (params.moduleParams[i].param == paramName)
- return toString(params.moduleParams[i].value);
- return "";
-}
-
-template <typename T>
-T parseInt(const std::string& paramName, const MODULE_SETTINGS& params)
-{
- for (size_t i = 0; i < params.moduleParams.size(); ++i)
- if (params.moduleParams[i].param == paramName)
- return toInt<T>(params.moduleParams[i].value);
- return 0;
-}
-
-} // namespace anonymous
-
-Config::Config(const MODULE_SETTINGS& settings)
- : match(parseVector("match", settings)),
- modify(parseVector("modify", settings)),
- reply(parseVector("reply", settings)),
- verbose(parseBool("verbose", settings)),
- bindAddress(parseString("bind_address", settings)),
- portStr(parseString("port", settings)),
- port(parseInt<uint16_t>("port", settings)),
- key(parseString("key", settings))
-{
-}