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// Copyright (c) 2013 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 "chrome/browser/chromeos/attestation/attestation_ca_client.h"
#include <string>
#include "chrome/browser/browser_process.h"
#include "googleurl/src/gurl.h"
#include "net/base/load_flags.h"
#include "net/http/http_status_code.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_status.h"
namespace {
const char kCertificateRequestURL[] = "https://chromeos-ca.gstatic.com/sign";
const char kEnrollRequestURL[] = "https://chromeos-ca.gstatic.com/enroll";
const char kMimeContentType[] = "application/octet-stream";
} // namespace
namespace chromeos {
namespace attestation {
AttestationCAClient::AttestationCAClient() {}
AttestationCAClient::~AttestationCAClient() {}
void AttestationCAClient::SendEnrollRequest(const std::string& request,
const DataCallback& on_response) {
FetchURL(kEnrollRequestURL, request, on_response);
}
void AttestationCAClient::SendCertificateRequest(
const std::string& request,
const DataCallback& on_response) {
FetchURL(kCertificateRequestURL, request, on_response);
}
void AttestationCAClient::OnURLFetchComplete(const net::URLFetcher* source) {
FetcherCallbackMap::iterator iter = pending_requests_.find(source);
if (iter == pending_requests_.end()) {
LOG(WARNING) << "Callback from unknown source.";
return;
}
DataCallback callback = iter->second;
pending_requests_.erase(iter);
scoped_ptr<const net::URLFetcher> scoped_source(source);
if (source->GetStatus().status() != net::URLRequestStatus::SUCCESS) {
LOG(ERROR) << "Attestation CA request failed, status: "
<< source->GetStatus().status() << ", error: "
<< source->GetStatus().error();
callback.Run(false, "");
return;
}
if (source->GetResponseCode() != net::HTTP_OK) {
LOG(ERROR) << "Attestation CA sent an error response: "
<< source->GetResponseCode();
callback.Run(false, "");
return;
}
std::string response;
bool result = source->GetResponseAsString(&response);
DCHECK(result) << "Invalid fetcher setting.";
// Run the callback last because it may delete |this|.
callback.Run(true, response);
}
void AttestationCAClient::FetchURL(const std::string& url,
const std::string& request,
const DataCallback& on_response) {
// The first argument allows the use of TestURLFetcherFactory in tests.
net::URLFetcher* fetcher = net::URLFetcher::Create(0,
GURL(url),
net::URLFetcher::POST,
this);
fetcher->SetRequestContext(g_browser_process->system_request_context());
fetcher->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
net::LOAD_DO_NOT_SAVE_COOKIES |
net::LOAD_DISABLE_CACHE);
fetcher->SetUploadData(kMimeContentType, request);
pending_requests_[fetcher] = on_response;
fetcher->Start();
}
} // namespace attestation
} // namespace chromeos
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