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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:15:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:15:43 +0000
commitf5f56e1a1c4d9e9496fcb9d81131066a964ccd23 (patch)
tree49e44c6f87febed37efb953ab5485aa49f6481a7 /src/lib/process/log_parser.cc
parentInitial commit. (diff)
downloadisc-kea-upstream.tar.xz
isc-kea-upstream.zip
Adding upstream version 2.4.1.upstream/2.4.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/lib/process/log_parser.cc')
-rw-r--r--src/lib/process/log_parser.cc158
1 files changed, 158 insertions, 0 deletions
diff --git a/src/lib/process/log_parser.cc b/src/lib/process/log_parser.cc
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+// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+#include <cc/data.h>
+#include <process/log_parser.h>
+#include <boost/foreach.hpp>
+#include <boost/lexical_cast.hpp>
+#include <log/logger_specification.h>
+#include <log/logger_support.h>
+#include <log/logger_manager.h>
+#include <log/logger_name.h>
+
+using namespace isc::data;
+using namespace isc::log;
+
+namespace isc {
+namespace process {
+
+LogConfigParser::LogConfigParser(const ConfigPtr& storage)
+ :config_(storage), verbose_(false) {
+ if (!storage) {
+ isc_throw(BadValue, "LogConfigParser needs a pointer to the "
+ "configuration, so parsed data can be stored there");
+ }
+}
+
+void LogConfigParser::parseConfiguration(const isc::data::ConstElementPtr& loggers,
+ bool verbose) {
+ verbose_ = verbose;
+
+ // Iterate over all entries in "Server/loggers" list
+ BOOST_FOREACH(ConstElementPtr logger, loggers->listValue()) {
+ parseConfigEntry(logger);
+ }
+}
+
+void LogConfigParser::parseConfigEntry(isc::data::ConstElementPtr entry) {
+ if (!entry) {
+ // This should not happen, but let's be on the safe side and check
+ return;
+ }
+
+ if (!config_) {
+ isc_throw(BadValue, "configuration storage not set, can't parse logger config.");
+ }
+
+ LoggingInfo info;
+ // Remove default destinations as we are going to replace them.
+ info.clearDestinations();
+
+ // Get user context
+ isc::data::ConstElementPtr user_context = entry->get("user-context");
+ if (user_context) {
+ info.setContext(user_context);
+ }
+
+ // Get a name
+ isc::data::ConstElementPtr name_ptr = entry->get("name");
+ if (!name_ptr) {
+ isc_throw(BadValue, "loggers entry does not have a mandatory 'name' "
+ "element (" << entry->getPosition() << ")");
+ }
+ info.name_ = name_ptr->stringValue();
+
+ // Get the severity.
+ // If not configured, set it to DEFAULT to inherit it from the root logger later.
+ isc::data::ConstElementPtr severity_ptr = entry->get("severity");
+ if (severity_ptr) {
+ info.severity_ = getSeverity(severity_ptr->stringValue());
+ } else {
+ info.severity_ = DEFAULT;
+ }
+
+ // Get debug logging level
+ info.debuglevel_ = 0;
+ isc::data::ConstElementPtr debuglevel_ptr = entry->get("debuglevel");
+
+ // It's ok to not have debuglevel, we'll just assume its least verbose
+ // (0) level.
+ if (debuglevel_ptr) {
+ try {
+ info.debuglevel_ = boost::lexical_cast<int>(debuglevel_ptr->str());
+ if ( (info.debuglevel_ < 0) || (info.debuglevel_ > 99) ) {
+ // Comment doesn't matter, it is caught several lines below
+ isc_throw(BadValue, "");
+ }
+ } catch (...) {
+ isc_throw(BadValue, "Unsupported debuglevel value '"
+ << debuglevel_ptr->stringValue()
+ << "', expected 0-99 ("
+ << debuglevel_ptr->getPosition() << ")");
+ }
+ }
+
+ // We want to follow the normal path, so it could catch parsing errors even
+ // when verbose mode is enabled. If it is, just override whatever was parsed
+ // in the config file.
+ if (verbose_) {
+ info.severity_ = isc::log::DEBUG;
+ info.debuglevel_ = 99;
+ }
+
+ isc::data::ConstElementPtr output_options = entry->get("output_options");
+
+ if (output_options) {
+ parseOutputOptions(info.destinations_, output_options);
+ }
+
+ config_->addLoggingInfo(info);
+}
+
+void LogConfigParser::parseOutputOptions(std::vector<LoggingDestination>& destination,
+ isc::data::ConstElementPtr output_options) {
+ if (!output_options) {
+ isc_throw(BadValue, "Missing 'output_options' structure in 'loggers'");
+ }
+
+ BOOST_FOREACH(ConstElementPtr output_option, output_options->listValue()) {
+
+ LoggingDestination dest;
+
+ isc::data::ConstElementPtr output = output_option->get("output");
+ if (!output) {
+ isc_throw(BadValue, "output_options entry does not have a mandatory 'output' "
+ "element (" << output_option->getPosition() << ")");
+ }
+ dest.output_ = output->stringValue();
+
+ isc::data::ConstElementPtr maxver_ptr = output_option->get("maxver");
+ if (maxver_ptr) {
+ dest.maxver_ = boost::lexical_cast<int>(maxver_ptr->str());
+ }
+
+ isc::data::ConstElementPtr maxsize_ptr = output_option->get("maxsize");
+ if (maxsize_ptr) {
+ dest.maxsize_ = boost::lexical_cast<uint64_t>(maxsize_ptr->str());
+ }
+
+ isc::data::ConstElementPtr flush_ptr = output_option->get("flush");
+ if (flush_ptr) {
+ dest.flush_ = flush_ptr->boolValue();
+ }
+
+ isc::data::ConstElementPtr pattern = output_option->get("pattern");
+ if (pattern) {
+ dest.pattern_ = pattern->stringValue();
+ }
+
+ destination.push_back(dest);
+ }
+}
+
+} // namespace isc::dhcp
+} // namespace isc