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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "livestatus/attributefilter.hpp"
#include "base/convert.hpp"
#include "base/array.hpp"
#include "base/objectlock.hpp"
#include "base/logger.hpp"
#include <boost/regex.hpp>
#include <boost/algorithm/string/predicate.hpp>
using namespace icinga;
AttributeFilter::AttributeFilter(String column, String op, String operand)
: m_Column(std::move(column)), m_Operator(std::move(op)), m_Operand(std::move(operand))
{ }
bool AttributeFilter::Apply(const Table::Ptr& table, const Value& row)
{
Column column = table->GetColumn(m_Column);
Value value = column.ExtractValue(row);
if (value.IsObjectType<Array>()) {
Array::Ptr array = value;
if (m_Operator == ">=" || m_Operator == "<") {
bool negate = (m_Operator == "<");
ObjectLock olock(array);
for (const String& item : array) {
if (item == m_Operand)
return !negate; /* Item found in list. */
}
return negate; /* Item not found in list. */
} else if (m_Operator == "=") {
return (array->GetLength() == 0);
} else {
BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid operator for column '" + m_Column + "': " + m_Operator + " (expected '>=' or '=')."));
}
} else {
if (m_Operator == "=") {
if (value.GetType() == ValueNumber || value.GetType() == ValueBoolean)
return (static_cast<double>(value) == Convert::ToDouble(m_Operand));
else
return (static_cast<String>(value) == m_Operand);
} else if (m_Operator == "~") {
bool ret;
try {
boost::regex expr(m_Operand.GetData());
String operand = value;
boost::smatch what;
ret = boost::regex_search(operand.GetData(), what, expr);
} catch (boost::exception&) {
Log(LogWarning, "AttributeFilter")
<< "Regex '" << m_Operand << " " << m_Operator << " " << value << "' error.";
ret = false;
}
//Log(LogDebug, "LivestatusListener/AttributeFilter")
// << "Attribute filter '" << m_Operand + " " << m_Operator << " "
// << value << "' " << (ret ? "matches" : "doesn't match") << ".";
return ret;
} else if (m_Operator == "=~") {
bool ret;
try {
String operand = value;
ret = boost::iequals(operand, m_Operand.GetData());
} catch (boost::exception&) {
Log(LogWarning, "AttributeFilter")
<< "Case-insensitive equality '" << m_Operand << " " << m_Operator << " " << value << "' error.";
ret = false;
}
return ret;
} else if (m_Operator == "~~") {
bool ret;
try {
boost::regex expr(m_Operand.GetData(), boost::regex::icase);
String operand = value;
boost::smatch what;
ret = boost::regex_search(operand.GetData(), what, expr);
} catch (boost::exception&) {
Log(LogWarning, "AttributeFilter")
<< "Regex '" << m_Operand << " " << m_Operator << " " << value << "' error.";
ret = false;
}
//Log(LogDebug, "LivestatusListener/AttributeFilter")
// << "Attribute filter '" << m_Operand << " " << m_Operator << " "
// << value << "' " << (ret ? "matches" : "doesn't match") << ".";
return ret;
} else if (m_Operator == "<") {
if (value.GetType() == ValueNumber)
return (static_cast<double>(value) < Convert::ToDouble(m_Operand));
else
return (static_cast<String>(value) < m_Operand);
} else if (m_Operator == ">") {
if (value.GetType() == ValueNumber)
return (static_cast<double>(value) > Convert::ToDouble(m_Operand));
else
return (static_cast<String>(value) > m_Operand);
} else if (m_Operator == "<=") {
if (value.GetType() == ValueNumber)
return (static_cast<double>(value) <= Convert::ToDouble(m_Operand));
else
return (static_cast<String>(value) <= m_Operand);
} else if (m_Operator == ">=") {
if (value.GetType() == ValueNumber)
return (static_cast<double>(value) >= Convert::ToDouble(m_Operand));
else
return (static_cast<String>(value) >= m_Operand);
} else {
BOOST_THROW_EXCEPTION(std::invalid_argument("Unknown operator for column '" + m_Column + "': " + m_Operator));
}
}
return false;
}
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