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/// inotify cron configuration implementation
/**
* \file incroncfg.cpp
*
* incron configuration
*
* Copyright (C) 2007, 2008 Lukas Jelinek, <lukas@aiken.cz>
*
* This program is free software; you can use it, redistribute
* it and/or modify it under the terms of the GNU General Public
* License, version 2 (see LICENSE-GPL).
*
*/
#include <fstream>
#include <sstream>
#include <cstring>
#include "incroncfg.h"
#define INCRON_CFG_DEFAULT "/etc/incron.conf"
typedef std::map<std::string, std::string> CFG_MAP;
typedef CFG_MAP::iterator CFG_ITER;
CFG_MAP IncronCfg::m_values;
CFG_MAP IncronCfg::m_defaults;
void IncronCfg::Init()
{
m_defaults.insert(CFG_MAP::value_type("system_table_dir", "/etc/incron.d"));
m_defaults.insert(CFG_MAP::value_type("user_table_dir", "/var/spool/incron"));
m_defaults.insert(CFG_MAP::value_type("allowed_users", "/etc/incron.allow"));
m_defaults.insert(CFG_MAP::value_type("denied_users", "/etc/incron.deny"));
m_defaults.insert(CFG_MAP::value_type("lockfile_dir", "/var/run"));
m_defaults.insert(CFG_MAP::value_type("lockfile_name", "incrond"));
m_defaults.insert(CFG_MAP::value_type("editor", ""));
}
void IncronCfg::Load(const std::string& rPath)
{
char s[1024];
std::ifstream is(rPath.c_str());
if (is.is_open()) {
while (!is.eof() && !is.fail()) {
is.getline(s, 1023);
std::string key, val;
if (ParseLine(s, key, val)) {
m_values.insert(CFG_MAP::value_type(key, val));
}
}
is.close();
return;
}
if (rPath == INCRON_CFG_DEFAULT)
return;
is.open(INCRON_CFG_DEFAULT);
if (is.is_open()) {
while (!is.eof() && !is.fail()) {
is.getline(s, 1023);
std::string key, val;
if (ParseLine(s, key, val)) {
m_values.insert(CFG_MAP::value_type(key, val));
}
}
is.close();
}
}
bool IncronCfg::GetValue(const std::string& rKey, std::string& rVal)
{
CFG_ITER it = m_values.find(rKey);
if (it != m_values.end()) {
rVal = (*it).second;
return true;
}
it = m_defaults.find(rKey);
if (it != m_defaults.end()) {
rVal = (*it).second;
return true;
}
return false;
}
bool IncronCfg::GetValue(const std::string& rKey, int& rVal)
{
std::string s;
if (GetValue(rKey, s)) {
if (sscanf(s.c_str(), "%i", &rVal) == 1)
return true;
}
return false;
}
bool IncronCfg::GetValue(const std::string& rKey, unsigned& rVal)
{
std::string s;
if (GetValue(rKey, s)) {
if (sscanf(s.c_str(), "%u", &rVal) == 1)
return true;
}
return false;
}
bool IncronCfg::GetValue(const std::string& rKey, bool& rVal)
{
std::string s;
if (GetValue(rKey, s)) {
size_t len = (size_t) s.length();
for (size_t i = 0; i < len; i++) {
s[i] = (char) tolower(s[i]);
}
rVal = (s == "1" || s == "true" || s == "yes" || s == "on" || s == "enable" || s == "enabled");
return true;
}
return false;
}
std::string IncronCfg::BuildPath(const std::string& rPath, const std::string& rName)
{
if (rPath.rfind('/') == rPath.length() - 1)
return rPath + rName;
return rPath + "/" + rName;
}
bool IncronCfg::ParseLine(const char* s, std::string& rKey, std::string& rVal)
{
// CAUTION: This code hasn't been optimized. It may be slow.
char key[1024], val[1024];
if (IsComment(s))
return false;
std::istringstream ss(s);
ss.get(key, 1023, '=');
if (ss.fail())
return false;
ss.get(val, 1023);
if (ss.fail())
return false;
rKey = key;
rVal = val;
std::string::size_type a = rKey.find_first_not_of(" \t");
std::string::size_type b = rKey.find_last_not_of(" \t");
if (a == std::string::npos || b == std::string::npos)
return false;
rKey = rKey.substr(a, b-a+1);
a = rVal.find_first_not_of(" \t=");
b = rVal.find_last_not_of(" \t");
if (a == std::string::npos || b == std::string::npos) {
rVal = "";
}
else {
rVal = rVal.substr(a, b-a+1);
}
return true;
}
bool IncronCfg::IsComment(const char* s)
{
char* sx = strchr(s, '#');
if (sx == NULL)
return false;
size_t len = sx - s;
for (size_t i = 0; i < len; i++) {
if (!(s[i] == ' ' || s[i] == '\t'))
return false;
}
return true;
}
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