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// Copyright 2015 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/net/certificate_error_reporter.h"
#include <set>
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/time/time.h"
#include "chrome/browser/net/cert_logger.pb.h"
#include "net/base/elements_upload_data_stream.h"
#include "net/base/load_flags.h"
#include "net/base/request_priority.h"
#include "net/base/upload_bytes_element_reader.h"
#include "net/cert/x509_certificate.h"
#include "net/ssl/ssl_info.h"
#include "net/url_request/url_request_context.h"
namespace chrome_browser_net {
CertificateErrorReporter::CertificateErrorReporter(
net::URLRequestContext* request_context,
const GURL& upload_url,
CookiesPreference cookies_preference)
: request_context_(request_context),
upload_url_(upload_url),
cookies_preference_(cookies_preference) {
DCHECK(!upload_url.is_empty());
}
CertificateErrorReporter::~CertificateErrorReporter() {
STLDeleteElements(&inflight_requests_);
}
void CertificateErrorReporter::SendReport(ReportType type,
const std::string& hostname,
const net::SSLInfo& ssl_info) {
CertLoggerRequest request;
std::string out;
BuildReport(hostname, ssl_info, &request);
switch (type) {
case REPORT_TYPE_PINNING_VIOLATION:
SendCertLoggerRequest(request);
break;
case REPORT_TYPE_EXTENDED_REPORTING:
// TODO(estark): Encrypt the report if not sending over HTTPS.
DCHECK(upload_url_.SchemeIsCryptographic());
SendCertLoggerRequest(request);
break;
default:
NOTREACHED();
}
}
void CertificateErrorReporter::OnResponseStarted(net::URLRequest* request) {
const net::URLRequestStatus& status(request->status());
if (!status.is_success()) {
LOG(WARNING) << "Certificate upload failed"
<< " status:" << status.status()
<< " error:" << status.error();
} else if (request->GetResponseCode() != 200) {
LOG(WARNING) << "Certificate upload HTTP status: "
<< request->GetResponseCode();
}
RequestComplete(request);
}
void CertificateErrorReporter::OnReadCompleted(net::URLRequest* request,
int bytes_read) {
}
scoped_ptr<net::URLRequest> CertificateErrorReporter::CreateURLRequest(
net::URLRequestContext* context) {
scoped_ptr<net::URLRequest> request =
context->CreateRequest(upload_url_, net::DEFAULT_PRIORITY, this);
if (cookies_preference_ != SEND_COOKIES) {
request->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
net::LOAD_DO_NOT_SAVE_COOKIES);
}
return request.Pass();
}
void CertificateErrorReporter::SendCertLoggerRequest(
const CertLoggerRequest& request) {
std::string serialized_request;
request.SerializeToString(&serialized_request);
scoped_ptr<net::URLRequest> url_request = CreateURLRequest(request_context_);
url_request->set_method("POST");
scoped_ptr<net::UploadElementReader> reader(
net::UploadOwnedBytesElementReader::CreateWithString(serialized_request));
url_request->set_upload(
net::ElementsUploadDataStream::CreateWithReader(reader.Pass(), 0));
net::HttpRequestHeaders headers;
headers.SetHeader(net::HttpRequestHeaders::kContentType,
"x-application/chrome-fraudulent-cert-report");
url_request->SetExtraRequestHeaders(headers);
net::URLRequest* raw_url_request = url_request.get();
inflight_requests_.insert(url_request.release());
raw_url_request->Start();
}
void CertificateErrorReporter::BuildReport(const std::string& hostname,
const net::SSLInfo& ssl_info,
CertLoggerRequest* out_request) {
base::Time now = base::Time::Now();
out_request->set_time_usec(now.ToInternalValue());
out_request->set_hostname(hostname);
std::vector<std::string> pem_encoded_chain;
if (!ssl_info.cert->GetPEMEncodedChain(&pem_encoded_chain))
LOG(ERROR) << "Could not get PEM encoded chain.";
std::string* cert_chain = out_request->mutable_cert_chain();
for (size_t i = 0; i < pem_encoded_chain.size(); ++i)
*cert_chain += pem_encoded_chain[i];
out_request->add_pin(ssl_info.pinning_failure_log);
}
void CertificateErrorReporter::RequestComplete(net::URLRequest* request) {
std::set<net::URLRequest*>::iterator i = inflight_requests_.find(request);
DCHECK(i != inflight_requests_.end());
scoped_ptr<net::URLRequest> url_request(*i);
inflight_requests_.erase(i);
}
} // namespace chrome_browser_net
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