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// Copyright 2023 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/manta/manta_service_callbacks.h"
#include <memory>
#include <string>
#include <string_view>
#include "base/containers/fixed_flat_map.h"
#include "base/functional/callback.h"
#include "base/metrics/histogram_functions.h"
#include "base/time/time.h"
#include "components/endpoint_fetcher/endpoint_fetcher.h"
#include "components/manta/manta_status.h"
#include "components/manta/proto/manta.pb.h"
#include "components/manta/proto/rpc_status.pb.h"
#include "net/http/http_status_code.h"
namespace manta {
namespace {
constexpr char kTypeUrlRpcErrorInfo[] =
"type.googleapis.com/google.rpc.ErrorInfo";
constexpr char kTypeUrlRpcLocalizedMessage[] =
"type.googleapis.com/google.rpc.LocalizedMessage";
constexpr char kExpectedEndPointDomain[] = "aratea-pa.googleapis.com";
// Maps the RpcErrorInfo.reason to MantaStatusCode.
std::optional<MantaStatusCode> MapServerFailureReasonToMantaStatusCode(
const std::string& reason) {
static constexpr auto reason_map =
base::MakeFixedFlatMap<std::string_view, MantaStatusCode>({
{"MISSING_INPUT", MantaStatusCode::kInvalidInput},
{"INVALID_INPUT", MantaStatusCode::kInvalidInput},
{"UNSUPPORTED_LANGUAGE", MantaStatusCode::kUnsupportedLanguage},
{"RESTRICTED_COUNTRY", MantaStatusCode::kRestrictedCountry},
{"RESOURCE_EXHAUSTED", MantaStatusCode::kResourceExhausted},
{"PER_USER_QUOTA_EXCEEDED", MantaStatusCode::kPerUserQuotaExceeded},
});
const auto iter = reason_map.find(reason);
return iter != reason_map.end() ? std::optional<MantaStatusCode>(iter->second)
: std::nullopt;
}
// Maps the RpcStatus.code to MantaStatusCode.
// The RpcStatus.code is an enum value of google.rpc.Code.
std::optional<MantaStatusCode> MapServerStatusCodeToMantaStatusCode(
const int32_t server_status_code) {
// TODO(b/288019728): add more items when needed.
static constexpr auto code_map =
base::MakeFixedFlatMap<int32_t, MantaStatusCode>({
{3 /*INVALID_ARGUMENT*/, MantaStatusCode::kInvalidInput},
{8 /*RESOURCE_EXHAUSTED*/, MantaStatusCode::kResourceExhausted},
});
const auto iter = code_map.find(server_status_code);
return iter != code_map.end() ? std::optional<MantaStatusCode>(iter->second)
: std::nullopt;
}
void LogTimeCost(const MantaMetricType request_type,
base::TimeDelta time_cost) {
switch (request_type) {
case MantaMetricType::kOrca:
base::UmaHistogramTimes("Ash.MantaService.OrcaProvider.TimeCost",
time_cost);
break;
case MantaMetricType::kScanner:
base::UmaHistogramTimes("Ash.MantaService.ScannerProvider.TimeCost",
time_cost);
break;
case MantaMetricType::kSnapper:
base::UmaHistogramTimes("Ash.MantaService.SnapperProvider.TimeCost",
time_cost);
break;
case MantaMetricType::kMahiSummary:
base::UmaHistogramTimes("Ash.MantaService.MahiProvider.Summary.TimeCost",
time_cost);
break;
case MantaMetricType::kMahiElucidation:
base::UmaHistogramTimes(
"Ash.MantaService.MahiProvider.Elucidation.TimeCost", time_cost);
break;
case MantaMetricType::kMahiQA:
base::UmaHistogramTimes("Ash.MantaService.MahiProvider.QA.TimeCost",
time_cost);
break;
case MantaMetricType::kAnchovy:
base::UmaHistogramTimes("Ash.MantaService.AnchovyProvider.TimeCost",
time_cost);
break;
case MantaMetricType::kWalrus:
base::UmaHistogramTimes("Ash.MantaService.WalrusProvider.TimeCost",
time_cost);
break;
}
}
void LogMantaStatusCode(const MantaMetricType request_type,
const MantaStatusCode status_code) {
switch (request_type) {
case MantaMetricType::kOrca:
base::UmaHistogramEnumeration("Ash.MantaService.OrcaProvider.StatusCode",
status_code);
break;
case MantaMetricType::kScanner:
base::UmaHistogramEnumeration(
"Ash.MantaService.ScannerProvider.StatusCode", status_code);
break;
case MantaMetricType::kSnapper:
base::UmaHistogramEnumeration(
"Ash.MantaService.SnapperProvider.StatusCode", status_code);
break;
case MantaMetricType::kMahiSummary:
base::UmaHistogramEnumeration(
"Ash.MantaService.MahiProvider.Summary.StatusCode", status_code);
break;
case MantaMetricType::kMahiElucidation:
base::UmaHistogramEnumeration(
"Ash.MantaService.MahiProvider.Elucidation.StatusCode", status_code);
break;
case MantaMetricType::kMahiQA:
base::UmaHistogramEnumeration(
"Ash.MantaService.MahiProvider.QA.StatusCode", status_code);
break;
case MantaMetricType::kAnchovy:
base::UmaHistogramEnumeration(
"Ash.MantaService.AnchovyProvider.StatusCode", status_code);
break;
case MantaMetricType::kWalrus:
base::UmaHistogramEnumeration(
"Ash.MantaService.WalrusProvider.StatusCode", status_code);
break;
}
}
} // namespace
void OnEndpointFetcherComplete(
MantaProtoResponseCallback callback,
base::Time start_time,
const MantaMetricType request_type,
std::unique_ptr<endpoint_fetcher::EndpointFetcher> fetcher,
std::unique_ptr<endpoint_fetcher::EndpointResponse> responses) {
// Tries to parse the response as a Response proto and return to the
// `callback` together with a OK status, or capture the errors and return a
// proper error status.
base::TimeDelta time_cost = base::Time::Now() - start_time;
std::string message, locale;
if (!responses) {
LogMantaStatusCode(request_type, MantaStatusCode::kBackendFailure);
std::move(callback).Run(nullptr,
{MantaStatusCode::kBackendFailure, message});
return;
}
// Tries to parse the unexpected response as RpcStatus and passes back the
// error messages.
if (responses->error_type.has_value() ||
responses->http_status_code != net::HTTP_OK) {
MantaStatusCode manta_status_code = MantaStatusCode::kBackendFailure;
if (responses->error_type.has_value() &&
responses->error_type.value() ==
endpoint_fetcher::FetchErrorType::kNetError) {
manta_status_code = MantaStatusCode::kNoInternetConnection;
}
proto::RpcStatus rpc_status;
if (!rpc_status.ParseFromString(responses->response)) {
DVLOG(1) << "Got unexpected failed response but failed to parse a "
"RpcStatus proto";
LogMantaStatusCode(request_type, manta_status_code);
std::move(callback).Run(nullptr, {manta_status_code, message});
return;
}
// Tries to map RpcStatus.code to a more specific manta status code.
auto maybe_updated_status_code =
MapServerStatusCodeToMantaStatusCode(rpc_status.code());
if (maybe_updated_status_code != std::nullopt) {
manta_status_code = maybe_updated_status_code.value();
}
// Extracts clearer error code and user-friendly messages from details.
for (const proto::Proto3Any& detail : rpc_status.details()) {
if (detail.type_url() == kTypeUrlRpcErrorInfo) {
proto::RpcErrorInfo error_info;
error_info.ParseFromString(detail.value());
// Tries to map ErrorInfo.reason to a more specific manta status code.
maybe_updated_status_code =
MapServerFailureReasonToMantaStatusCode(error_info.reason());
if (error_info.domain() == kExpectedEndPointDomain &&
maybe_updated_status_code != std::nullopt) {
manta_status_code = maybe_updated_status_code.value();
}
} else if (detail.type_url() == kTypeUrlRpcLocalizedMessage) {
proto::RpcLocalizedMessage localize_message;
localize_message.ParseFromString(detail.value());
message = localize_message.message();
locale = localize_message.locale();
}
}
LogMantaStatusCode(request_type, manta_status_code);
std::move(callback).Run(nullptr, {manta_status_code, message, locale});
return;
}
auto manta_response = std::make_unique<proto::Response>();
if (!manta_response->ParseFromString(responses->response)) {
DVLOG(1) << "Failed to parse MantaResponse as a Response proto";
LogMantaStatusCode(request_type, MantaStatusCode::kMalformedResponse);
std::move(callback).Run(nullptr,
{MantaStatusCode::kMalformedResponse, message});
return;
}
LogTimeCost(request_type, time_cost);
LogMantaStatusCode(request_type, MantaStatusCode::kOk);
std::move(callback).Run(std::move(manta_response),
{MantaStatusCode::kOk, message});
}
} // namespace manta
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