1 files changed, 87 insertions, 0 deletions
diff --git a/lib/base/journaldlogger.cpp b/lib/base/journaldlogger.cpp
new file mode 100644
index 0000000..92d6af7
--- /dev/null
+++ b/lib/base/journaldlogger.cpp
@@ -0,0 +1,87 @@
+/* Icinga 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+#include "base/i2-base.hpp"
+#if !defined(_WIN32) && defined(HAVE_SYSTEMD)
+#include "base/journaldlogger.hpp"
+#include "base/journaldlogger-ti.cpp"
+#include "base/configtype.hpp"
+#include "base/statsfunction.hpp"
+#include "base/sysloglogger.hpp"
+#include <systemd/sd-journal.h>
+
+using namespace icinga;
+
+REGISTER_TYPE(JournaldLogger);
+
+REGISTER_STATSFUNCTION(JournaldLogger, &JournaldLogger::StatsFunc);
+
+void JournaldLogger::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr&)
+{
+	DictionaryData nodes;
+
+	for (const JournaldLogger::Ptr& journaldlogger : ConfigType::GetObjectsByType<JournaldLogger>()) {
+		nodes.emplace_back(journaldlogger->GetName(), 1); //add more stats
+	}
+
+	status->Set("journaldlogger", new Dictionary(std::move(nodes)));
+}
+
+void JournaldLogger::OnConfigLoaded()
+{
+	ObjectImpl<JournaldLogger>::OnConfigLoaded();
+	m_ConfiguredJournalFields.clear();
+	m_ConfiguredJournalFields.push_back(
+		String("SYSLOG_FACILITY=") + Value(SyslogHelper::FacilityToNumber(GetFacility())));
+	const String identifier = GetIdentifier();
+	if (!identifier.IsEmpty()) {
+		m_ConfiguredJournalFields.push_back(String("SYSLOG_IDENTIFIER=" + identifier));
+	}
+}
+
+void JournaldLogger::ValidateFacility(const Lazy<String>& lvalue, const ValidationUtils& utils)
+{
+	ObjectImpl<JournaldLogger>::ValidateFacility(lvalue, utils);
+	if (!SyslogHelper::ValidateFacility(lvalue()))
+		BOOST_THROW_EXCEPTION(ValidationError(this, { "facility" }, "Invalid facility specified."));
+}
+
+/**
+ * Processes a log entry and outputs it to journald.
+ *
+ * @param entry The log entry.
+ */
+void JournaldLogger::ProcessLogEntry(const LogEntry& entry)
+{
+	const std::vector<String> sdFields {
+		String("MESSAGE=") + entry.Message.GetData(),
+		String("PRIORITY=") + Value(SyslogHelper::SeverityToNumber(entry.Severity)),
+		String("ICINGA2_FACILITY=") + entry.Facility,
+	};
+	SystemdJournalSend(sdFields);
+}
+
+void JournaldLogger::Flush()
+{
+	/* Nothing to do here. */
+}
+
+void JournaldLogger::SystemdJournalSend(const std::vector<String>& varJournalFields) const
+{
+	struct iovec iovec[m_ConfiguredJournalFields.size() + varJournalFields.size()];
+	int iovecCount = 0;
+
+	for (const String& journalField: m_ConfiguredJournalFields) {
+		iovec[iovecCount] = IovecFromString(journalField);
+		iovecCount++;
+	}
+	for (const String& journalField: varJournalFields) {
+		iovec[iovecCount] = IovecFromString(journalField);
+		iovecCount++;
+	}
+	sd_journal_sendv(iovec, iovecCount);
+}
+
+struct iovec JournaldLogger::IovecFromString(const String& s) {
+	return { const_cast<char *>(s.CStr()), s.GetLength() };
+}
+#endif /* !_WIN32 && HAVE_SYSTEMD */