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#pragma once
#include "bmcweb_config.h"
#include "generated/enums/log_entry.hpp"
#include "logging.hpp"
#include "utility.hpp"
#include "utils/time_utils.hpp"
#include <systemd/sd-journal.h>
#include <nlohmann/json.hpp>
#include <algorithm>
#include <charconv>
#include <cstddef>
#include <cstdint>
#include <format>
#include <memory>
#include <string>
#include <string_view>
#include <utility>
namespace redfish
{
inline int getJournalMetadata(sd_journal* journal, const char* field,
std::string_view& contents)
{
const char* data = nullptr;
size_t length = 0;
int ret = 0;
// Get the metadata from the requested field of the journal entry
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
const void** dataVoid = reinterpret_cast<const void**>(&data);
ret = sd_journal_get_data(journal, field, dataVoid, &length);
if (ret < 0)
{
return ret;
}
contents = std::string_view(data, length);
// Only use the content after the "=" character.
contents.remove_prefix(std::min(contents.find('=') + 1, contents.size()));
return ret;
}
inline int getJournalMetadataInt(sd_journal* journal, const char* field,
long int& contents)
{
std::string_view metadata;
// Get the metadata from the requested field of the journal entry
int ret = getJournalMetadata(journal, field, metadata);
if (ret < 0)
{
return ret;
}
std::from_chars_result res =
std::from_chars(&*metadata.begin(), &*metadata.end(), contents);
if (res.ec != std::error_code{} || res.ptr != &*metadata.end())
{
return -1;
}
return 0;
}
inline bool getEntryTimestamp(sd_journal* journal, std::string& entryTimestamp)
{
int ret = 0;
uint64_t timestamp = 0;
ret = sd_journal_get_realtime_usec(journal, ×tamp);
if (ret < 0)
{
BMCWEB_LOG_ERROR("Failed to read entry timestamp: {}", ret);
return false;
}
entryTimestamp = redfish::time_utils::getDateTimeUintUs(timestamp);
return true;
}
inline bool fillBMCJournalLogEntryJson(
sd_journal* journal, nlohmann::json::object_t& bmcJournalLogEntryJson)
{
char* cursor = nullptr;
int ret = sd_journal_get_cursor(journal, &cursor);
if (ret < 0)
{
return false;
}
std::unique_ptr<char*> cursorptr = std::make_unique<char*>(cursor);
std::string bmcJournalLogEntryID(cursor);
// Get the Log Entry contents
std::string message;
std::string_view syslogID;
ret = getJournalMetadata(journal, "SYSLOG_IDENTIFIER", syslogID);
if (ret < 0)
{
BMCWEB_LOG_DEBUG("Failed to read SYSLOG_IDENTIFIER field: {}", ret);
}
if (!syslogID.empty())
{
message += std::string(syslogID) + ": ";
}
std::string_view msg;
ret = getJournalMetadata(journal, "MESSAGE", msg);
if (ret < 0)
{
BMCWEB_LOG_ERROR("Failed to read MESSAGE field: {}", ret);
return false;
}
message += std::string(msg);
// Get the severity from the PRIORITY field
long int severity = 8; // Default to an invalid priority
ret = getJournalMetadataInt(journal, "PRIORITY", severity);
if (ret < 0)
{
BMCWEB_LOG_DEBUG("Failed to read PRIORITY field: {}", ret);
}
// Get the Created time from the timestamp
std::string entryTimeStr;
if (!getEntryTimestamp(journal, entryTimeStr))
{
return false;
}
// Fill in the log entry with the gathered data
bmcJournalLogEntryJson["@odata.type"] = "#LogEntry.v1_9_0.LogEntry";
std::string entryIdBase64 =
crow::utility::base64encode(bmcJournalLogEntryID);
bmcJournalLogEntryJson["@odata.id"] = boost_swap_impl::format(
"/redfish/v1/Managers/{}/LogServices/Journal/Entries/{}",
BMCWEB_REDFISH_MANAGER_URI_NAME, entryIdBase64);
bmcJournalLogEntryJson["Name"] = "BMC Journal Entry";
bmcJournalLogEntryJson["Id"] = entryIdBase64;
bmcJournalLogEntryJson["Message"] = std::move(message);
bmcJournalLogEntryJson["EntryType"] = log_entry::LogEntryType::Oem;
log_entry::EventSeverity rfseverity = log_entry::EventSeverity::OK;
if (severity <= 2)
{
rfseverity = log_entry::EventSeverity::Critical;
}
else if (severity <= 4)
{
rfseverity = log_entry::EventSeverity::Warning;
}
bmcJournalLogEntryJson["Severity"] = rfseverity;
bmcJournalLogEntryJson["OemRecordFormat"] = "BMC Journal Entry";
bmcJournalLogEntryJson["Created"] = std::move(entryTimeStr);
return true;
}
} // namespace redfish
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