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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/signaling/remoting_log_to_server.h"
#include <sstream>
#include "base/functional/bind.h"
#include "base/logging.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "remoting/base/http_status.h"
#include "remoting/base/protobuf_http_client.h"
#include "remoting/base/protobuf_http_request.h"
#include "remoting/base/protobuf_http_request_config.h"
#include "remoting/base/service_urls.h"
#include "remoting/proto/remoting/v1/telemetry_messages.pb.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
namespace remoting {
namespace {
const net::BackoffEntry::Policy kBackoffPolicy = {
// Number of initial errors (in sequence) to ignore before applying
// exponential back-off rules.
0,
// Initial delay for exponential back-off in ms.
1000,
// Factor by which the waiting time will be multiplied.
2,
// Fuzzing percentage. ex: 10% will spread requests randomly
// between 90%-100% of the calculated time.
0.5,
// Maximum amount of time we are willing to delay our request in ms.
60000,
// Time to keep an entry from being discarded even when it
// has no significant state, -1 to never discard.
-1,
// Starts with initial delay.
false,
};
constexpr net::NetworkTrafficAnnotationTag kTrafficAnnotation =
net::DefineNetworkTrafficAnnotation("remoting_log_to_server",
R"(
semantics {
sender: "Chrome Remote Desktop"
description:
"Sends telemetry logs for Chrome Remote Desktop."
trigger:
"These requests are sent periodically when a session is connected, "
"i.e. CRD host is running and is connected to a client."
user_data {
type: OTHER
}
data:
"Anonymous usage statistics, which includes CRD host version, OS "
"name, OS version, and CPU architecture (e.g. x86_64)."
destination: GOOGLE_OWNED_SERVICE
internal {
contacts { email: "garykac@chromium.org" }
contacts { email: "jamiewalch@chromium.org" }
contacts { email: "joedow@chromium.org" }
contacts { email: "lambroslambrou@chromium.org" }
contacts { email: "rkjnsn@chromium.org" }
contacts { email: "yuweih@chromium.org" }
}
last_reviewed: "2023-07-07"
}
policy {
cookies_allowed: NO
setting:
"This request cannot be stopped in settings, but will not be sent "
"if the user does not use Chrome Remote Desktop."
chrome_policy {
RemoteAccessHostAllowRemoteSupportConnections {
RemoteAccessHostAllowRemoteSupportConnections: false
}
RemoteAccessHostAllowEnterpriseRemoteSupportConnections {
RemoteAccessHostAllowEnterpriseRemoteSupportConnections: false
}
}
})");
constexpr char kCreateLogEntryPath[] = "/v1/telemetry:createlogentry";
using CreateLogEntryResponseCallback =
base::OnceCallback<void(const HttpStatus&,
std::unique_ptr<apis::v1::CreateLogEntryResponse>)>;
class TelemetryClient {
public:
TelemetryClient(
OAuthTokenGetter* token_getter,
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory);
TelemetryClient(const TelemetryClient&) = delete;
TelemetryClient& operator=(const TelemetryClient&) = delete;
~TelemetryClient();
void CreateLogEntry(const apis::v1::CreateLogEntryRequest& request,
CreateLogEntryResponseCallback callback);
private:
ProtobufHttpClient http_client_;
};
TelemetryClient::TelemetryClient(
OAuthTokenGetter* token_getter,
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory)
: http_client_(ServiceUrls::GetInstance()->remoting_server_endpoint(),
token_getter,
url_loader_factory) {}
TelemetryClient::~TelemetryClient() = default;
void TelemetryClient::CreateLogEntry(
const apis::v1::CreateLogEntryRequest& request,
CreateLogEntryResponseCallback callback) {
auto request_config =
std::make_unique<ProtobufHttpRequestConfig>(kTrafficAnnotation);
request_config->path = kCreateLogEntryPath;
request_config->request_message =
std::make_unique<apis::v1::CreateLogEntryRequest>(request);
auto http_request =
std::make_unique<ProtobufHttpRequest>(std::move(request_config));
http_request->SetResponseCallback(std::move(callback));
http_client_.ExecuteRequest(std::move(http_request));
}
} // namespace
RemotingLogToServer::RemotingLogToServer(
ServerLogEntry::Mode mode,
std::unique_ptr<OAuthTokenGetter> token_getter,
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory)
: mode_(mode),
token_getter_(std::move(token_getter)),
backoff_(&kBackoffPolicy),
create_log_entry_(base::BindRepeating(
&TelemetryClient::CreateLogEntry,
std::make_unique<TelemetryClient>(token_getter_.get(),
url_loader_factory))) {}
RemotingLogToServer::~RemotingLogToServer() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void RemotingLogToServer::Log(const ServerLogEntry& entry) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
apis::v1::CreateLogEntryRequest request;
*request.mutable_payload()->mutable_entry() = entry.ToGenericLogEntry();
SendLogRequestWithBackoff(request, kMaxSendLogAttempts);
}
void RemotingLogToServer::SendLogRequest(
const apis::v1::CreateLogEntryRequest& request,
int attempts_left) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (VLOG_IS_ON(1)) {
std::ostringstream log_stream;
log_stream << "Sending log entry with " << attempts_left
<< " attempts left: \n";
for (const auto& field : request.payload().entry().field()) {
log_stream << field.key() << ": " << field.value() << "\n";
}
log_stream << "=========================================================";
VLOG(1) << log_stream.str();
}
create_log_entry_.Run(
request,
base::BindOnce(&RemotingLogToServer::OnSendLogRequestResult,
base::Unretained(this), request, attempts_left - 1));
}
void RemotingLogToServer::SendLogRequestWithBackoff(
const apis::v1::CreateLogEntryRequest& request,
int attempts_left) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
auto time_until_release = backoff_.GetTimeUntilRelease();
VLOG(1) << "Scheduling request in " << time_until_release
<< ", attempts left: " << attempts_left;
backoff_timer_.Start(
FROM_HERE, time_until_release,
base::BindOnce(&RemotingLogToServer::SendLogRequest,
base::Unretained(this), request, attempts_left));
}
void RemotingLogToServer::OnSendLogRequestResult(
const apis::v1::CreateLogEntryRequest& request,
int attempts_left,
const HttpStatus& status,
std::unique_ptr<apis::v1::CreateLogEntryResponse> response) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (status.ok()) {
VLOG(1) << "One log has been successfully sent.";
backoff_.InformOfRequest(true);
return;
}
LOG(WARNING) << "Failed to send one log."
<< " Error: " << static_cast<int>(status.error_code())
<< " Message: " << status.error_message();
backoff_.InformOfRequest(false);
if (attempts_left <= 0) {
LOG(WARNING) << "Exceeded maximum retry attempts. Dropping it...";
return;
}
SendLogRequestWithBackoff(request, attempts_left);
}
ServerLogEntry::Mode RemotingLogToServer::mode() const {
return mode_;
}
} // namespace remoting
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