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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/media_router/browser/logger_impl.h"
#include <string_view>
#include "base/i18n/time_formatting.h"
#include "base/json/json_string_value_serializer.h"
#include "base/values.h"
#include "components/media_router/browser/log_util.h"
#include "components/media_router/common/media_source.h"
#include "components/media_router/common/mojom/logger.mojom-shared.h"
#include "url/gurl.h"
namespace media_router {
namespace {
constexpr size_t kEntriesCapacity = 1000;
constexpr size_t kComponentMaxLength = 64;
constexpr size_t kMessageMaxLength = 1024;
constexpr size_t kSourceMaxLength = 64;
const char* AsString(LoggerImpl::Severity severity) {
switch (severity) {
case LoggerImpl::Severity::kInfo:
return "Info";
case LoggerImpl::Severity::kWarning:
return "Warning";
case LoggerImpl::Severity::kError:
return "Error";
}
}
const char* AsString(mojom::LogCategory category) {
switch (category) {
case mojom::LogCategory::kDiscovery:
return "Discovery";
case mojom::LogCategory::kRoute:
return "Route";
case mojom::LogCategory::kMirroring:
return "Mirroring";
case mojom::LogCategory::kUi:
return "UI";
}
}
std::string_view TruncateComponent(std::string_view component) {
return component.substr(0, kComponentMaxLength);
}
std::string_view TruncateMessage(std::string_view message) {
return message.substr(0, kMessageMaxLength);
}
} // namespace
LoggerImpl::LoggerImpl() : capacity_(kEntriesCapacity) {}
LoggerImpl::~LoggerImpl() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void LoggerImpl::LogInfo(mojom::LogCategory category,
const std::string& component,
const std::string& message,
const std::string& sink_id,
const std::string& media_source,
const std::string& session_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
Log(Severity::kInfo, category, base::Time::Now(), component, message, sink_id,
media_source, session_id);
}
void LoggerImpl::LogWarning(mojom::LogCategory category,
const std::string& component,
const std::string& message,
const std::string& sink_id,
const std::string& media_source,
const std::string& session_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
Log(Severity::kWarning, category, base::Time::Now(), component, message,
sink_id, media_source, session_id);
}
void LoggerImpl::LogError(mojom::LogCategory category,
const std::string& component,
const std::string& message,
const std::string& sink_id,
const std::string& media_source,
const std::string& session_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
Log(Severity::kError, category, base::Time::Now(), component, message,
sink_id, media_source, session_id);
}
void LoggerImpl::BindReceiver(mojo::PendingReceiver<mojom::Logger> receiver) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
receivers_.Add(this, std::move(receiver));
}
void LoggerImpl::Log(Severity severity,
mojom::LogCategory category,
base::Time time,
const std::string& component,
const std::string& message,
const std::string& sink_id,
const std::string& media_source,
const std::string& session_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
entries_.emplace_back(
severity, category, time, TruncateComponent(component),
TruncateMessage(message), log_util::TruncateId(sink_id),
MediaSource(media_source).TruncateForLogging(kSourceMaxLength),
log_util::TruncateId(session_id));
if (entries_.size() > capacity_) {
entries_.pop_front();
}
}
std::string LoggerImpl::GetLogsAsJson() const {
std::string json;
JSONStringValueSerializer serializer(&json);
serializer.set_pretty_print(true);
if (!serializer.Serialize(GetLogsAsValue())) {
DVLOG(1) << "Failed to serialize log to JSON.";
return "";
}
return json;
}
base::Value LoggerImpl::GetLogsAsValue() const {
base::Value::List entries_val;
for (const auto& entry : entries_) {
entries_val.Append(AsValue(entry));
}
return base::Value(std::move(entries_val));
}
LoggerImpl::Entry::Entry(Severity severity,
mojom::LogCategory category,
base::Time time,
std::string_view component,
std::string_view message,
std::string_view sink_id,
std::string media_source,
std::string_view session_id)
: severity(severity),
category(category),
time(time),
component(component),
message(message),
sink_id(sink_id),
media_source(std::move(media_source)),
session_id(session_id) {}
LoggerImpl::Entry::Entry(Entry&& other)
: severity(other.severity),
category(other.category),
time(other.time),
component(std::move(other.component)),
message(std::move(other.message)),
sink_id(std::move(other.sink_id)),
media_source(std::move(other.media_source)),
session_id(std::move(other.session_id)) {}
LoggerImpl::Entry::~Entry() = default;
// static
base::Value::Dict LoggerImpl::AsValue(const LoggerImpl::Entry& entry) {
base::Value::Dict entry_val;
entry_val.Set("severity", base::Value(AsString(entry.severity)));
entry_val.Set("category", base::Value(AsString(entry.category)));
entry_val.Set(
"time",
base::Value(base::TimeFormatTimeOfDayWithMilliseconds(entry.time)));
entry_val.Set("component", base::Value(entry.component));
entry_val.Set("message", base::Value(entry.message));
entry_val.Set("sinkId", base::Value(entry.sink_id));
entry_val.Set("mediaSource", base::Value(entry.media_source));
entry_val.Set("sessionId", base::Value(entry.session_id));
return entry_val;
}
} // namespace media_router
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