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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/domain_reliability/uploader.h"
#include <utility>
#include "base/bind.h"
#include "base/callback.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/supports_user_data.h"
#include "components/domain_reliability/util.h"
#include "net/base/load_flags.h"
#include "net/base/net_errors.h"
#include "net/http/http_response_headers.h"
#include "net/http/http_util.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "net/url_request/url_request_context_getter.h"
namespace domain_reliability {
namespace {
const char kJsonMimeType[] = "application/json; charset=utf-8";
class UploadUserData : public base::SupportsUserData::Data {
public:
static net::URLFetcher::CreateDataCallback CreateCreateDataCallback(
int depth) {
return base::Bind(&UploadUserData::CreateUploadUserData, depth);
}
static const void* const kUserDataKey;
int depth() const { return depth_; }
private:
UploadUserData(int depth) : depth_(depth) {}
static base::SupportsUserData::Data* CreateUploadUserData(int depth) {
return new UploadUserData(depth);
}
int depth_;
};
const void* const UploadUserData::kUserDataKey =
&UploadUserData::kUserDataKey;
class DomainReliabilityUploaderImpl
: public DomainReliabilityUploader, net::URLFetcherDelegate {
public:
DomainReliabilityUploaderImpl(
MockableTime* time,
const scoped_refptr<
net::URLRequestContextGetter>& url_request_context_getter)
: time_(time),
url_request_context_getter_(url_request_context_getter),
discard_uploads_(true),
shutdown_(false) {}
~DomainReliabilityUploaderImpl() override {
DCHECK(shutdown_);
}
// DomainReliabilityUploader implementation:
void UploadReport(
const std::string& report_json,
int max_upload_depth,
const GURL& upload_url,
const DomainReliabilityUploader::UploadCallback& callback) override {
VLOG(1) << "Uploading report to " << upload_url;
VLOG(2) << "Report JSON: " << report_json;
if (discard_uploads_ || shutdown_) {
VLOG(1) << "Discarding report instead of uploading.";
UploadResult result;
result.status = UploadResult::SUCCESS;
callback.Run(result);
return;
}
std::unique_ptr<net::URLFetcher> owned_fetcher =
net::URLFetcher::Create(0, upload_url, net::URLFetcher::POST, this);
net::URLFetcher* fetcher = owned_fetcher.get();
fetcher->SetRequestContext(url_request_context_getter_.get());
fetcher->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
net::LOAD_DO_NOT_SAVE_COOKIES);
fetcher->SetUploadData(kJsonMimeType, report_json);
fetcher->SetAutomaticallyRetryOn5xx(false);
fetcher->SetURLRequestUserData(
UploadUserData::kUserDataKey,
UploadUserData::CreateCreateDataCallback(max_upload_depth + 1));
fetcher->Start();
uploads_[fetcher] = {std::move(owned_fetcher), callback};
base::TimeTicks now = base::TimeTicks::Now();
if (!last_upload_start_time_.is_null()) {
UMA_HISTOGRAM_LONG_TIMES("DomainReliability.UploadIntervalGlobal",
now - last_upload_start_time_);
}
last_upload_start_time_ = now;
}
void set_discard_uploads(bool discard_uploads) override {
discard_uploads_ = discard_uploads;
VLOG(1) << "Setting discard_uploads to " << discard_uploads;
}
void Shutdown() override {
DCHECK(!shutdown_);
shutdown_ = true;
uploads_.clear();
}
// net::URLFetcherDelegate implementation:
void OnURLFetchComplete(const net::URLFetcher* fetcher) override {
DCHECK(fetcher);
auto callback_it = uploads_.find(fetcher);
DCHECK(callback_it != uploads_.end());
int net_error = GetNetErrorFromURLRequestStatus(fetcher->GetStatus());
int http_response_code = fetcher->GetResponseCode();
base::TimeDelta retry_after;
{
std::string retry_after_string;
if (fetcher->GetResponseHeaders() &&
fetcher->GetResponseHeaders()->EnumerateHeader(nullptr,
"Retry-After",
&retry_after_string)) {
net::HttpUtil::ParseRetryAfterHeader(retry_after_string,
time_->Now(),
&retry_after);
}
}
VLOG(1) << "Upload finished with net error " << net_error
<< ", response code " << http_response_code
<< ", retry after " << retry_after;
UMA_HISTOGRAM_SPARSE_SLOWLY("DomainReliability.UploadResponseCode",
http_response_code);
UMA_HISTOGRAM_SPARSE_SLOWLY("DomainReliability.UploadNetError",
-net_error);
UploadResult result;
GetUploadResultFromResponseDetails(net_error,
http_response_code,
retry_after,
&result);
callback_it->second.second.Run(result);
uploads_.erase(callback_it);
}
private:
using DomainReliabilityUploader::UploadCallback;
MockableTime* time_;
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
std::map<const net::URLFetcher*,
std::pair<std::unique_ptr<net::URLFetcher>, UploadCallback>>
uploads_;
bool discard_uploads_;
base::TimeTicks last_upload_start_time_;
bool shutdown_;
};
} // namespace
DomainReliabilityUploader::DomainReliabilityUploader() {}
DomainReliabilityUploader::~DomainReliabilityUploader() {}
// static
std::unique_ptr<DomainReliabilityUploader> DomainReliabilityUploader::Create(
MockableTime* time,
const scoped_refptr<net::URLRequestContextGetter>&
url_request_context_getter) {
return std::unique_ptr<DomainReliabilityUploader>(
new DomainReliabilityUploaderImpl(time, url_request_context_getter));
}
// static
bool DomainReliabilityUploader::OriginatedFromDomainReliability(
const net::URLRequest& request) {
return request.GetUserData(UploadUserData::kUserDataKey) != nullptr;
}
// static
int DomainReliabilityUploader::GetURLRequestUploadDepth(
const net::URLRequest& request) {
UploadUserData* data = static_cast<UploadUserData*>(
request.GetUserData(UploadUserData::kUserDataKey));
if (!data)
return 0;
return data->depth();
}
void DomainReliabilityUploader::Shutdown() {}
} // namespace domain_reliability
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