1 files changed, 83 insertions, 0 deletions
diff --git a/lib/base/windowseventloglogger.cpp b/lib/base/windowseventloglogger.cpp
new file mode 100644
index 0000000..cc28358
--- /dev/null
+++ b/lib/base/windowseventloglogger.cpp
@@ -0,0 +1,83 @@
+/* Icinga 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+#ifdef _WIN32
+#include "base/windowseventloglogger.hpp"
+#include "base/windowseventloglogger-ti.cpp"
+#include "base/windowseventloglogger-provider.h"
+#include "base/configtype.hpp"
+#include "base/statsfunction.hpp"
+#include <windows.h>
+
+using namespace icinga;
+
+REGISTER_TYPE(WindowsEventLogLogger);
+
+REGISTER_STATSFUNCTION(WindowsEventLogLogger, &WindowsEventLogLogger::StatsFunc);
+
+INITIALIZE_ONCE(&WindowsEventLogLogger::StaticInitialize);
+
+static HANDLE l_EventLog = nullptr;
+
+void WindowsEventLogLogger::StaticInitialize()
+{
+	l_EventLog = RegisterEventSourceA(nullptr, "Icinga 2");
+}
+
+void WindowsEventLogLogger::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr&)
+{
+	DictionaryData nodes;
+
+	for (const WindowsEventLogLogger::Ptr& logger : ConfigType::GetObjectsByType<WindowsEventLogLogger>()) {
+		nodes.emplace_back(logger->GetName(), 1);
+	}
+
+	status->Set("windowseventloglogger", new Dictionary(std::move(nodes)));
+}
+
+/**
+ * Processes a log entry and outputs it to the Windows Event Log.
+ *
+ * This function implements the interface expected by the Logger base class and passes
+ * the log entry to WindowsEventLogLogger::WriteToWindowsEventLog().
+ *
+ * @param entry The log entry.
+ */
+void WindowsEventLogLogger::ProcessLogEntry(const LogEntry& entry) {
+	WindowsEventLogLogger::WriteToWindowsEventLog(entry);
+}
+
+/**
+ * Writes a LogEntry object to the Windows Event Log.
+ *
+ * @param entry The log entry.
+ */
+void WindowsEventLogLogger::WriteToWindowsEventLog(const LogEntry& entry)
+{
+	if (l_EventLog != nullptr) {
+		std::string message = Logger::SeverityToString(entry.Severity) + "/" + entry.Facility + ": " + entry.Message;
+		std::array<const char *, 1> strings{
+			message.c_str()
+		};
+
+		WORD eventType;
+		switch (entry.Severity) {
+			case LogCritical:
+				eventType = EVENTLOG_ERROR_TYPE;
+				break;
+			case LogWarning:
+				eventType = EVENTLOG_WARNING_TYPE;
+				break;
+			default:
+				eventType = EVENTLOG_INFORMATION_TYPE;
+		}
+
+		ReportEventA(l_EventLog, eventType, 0, MSG_PLAIN_LOG_ENTRY, NULL, strings.size(), 0, strings.data(), NULL);
+	}
+}
+
+void WindowsEventLogLogger::Flush()
+{
+	/* Nothing to do here. */
+}
+
+#endif /* _WIN32 */