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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/ssl/certificate_error_report.h"
#include <vector>
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "base/time/time.h"
#include "chrome/browser/ssl/cert_logger.pb.h"
#include "net/cert/cert_status_flags.h"
#include "net/cert/x509_certificate.h"
#include "net/ssl/ssl_info.h"
namespace {
void AddCertStatusToReportErrors(net::CertStatus cert_status,
CertLoggerRequest* report) {
if (cert_status & net::CERT_STATUS_REVOKED)
report->add_cert_error(CertLoggerRequest::ERR_CERT_REVOKED);
if (cert_status & net::CERT_STATUS_INVALID)
report->add_cert_error(CertLoggerRequest::ERR_CERT_INVALID);
if (cert_status & net::CERT_STATUS_PINNED_KEY_MISSING)
report->add_cert_error(
CertLoggerRequest::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN);
if (cert_status & net::CERT_STATUS_AUTHORITY_INVALID)
report->add_cert_error(CertLoggerRequest::ERR_CERT_AUTHORITY_INVALID);
if (cert_status & net::CERT_STATUS_COMMON_NAME_INVALID)
report->add_cert_error(CertLoggerRequest::ERR_CERT_COMMON_NAME_INVALID);
if (cert_status & net::CERT_STATUS_NON_UNIQUE_NAME)
report->add_cert_error(CertLoggerRequest::ERR_CERT_NON_UNIQUE_NAME);
if (cert_status & net::CERT_STATUS_NAME_CONSTRAINT_VIOLATION)
report->add_cert_error(
CertLoggerRequest::ERR_CERT_NAME_CONSTRAINT_VIOLATION);
if (cert_status & net::CERT_STATUS_WEAK_SIGNATURE_ALGORITHM)
report->add_cert_error(
CertLoggerRequest::ERR_CERT_WEAK_SIGNATURE_ALGORITHM);
if (cert_status & net::CERT_STATUS_WEAK_KEY)
report->add_cert_error(CertLoggerRequest::ERR_CERT_WEAK_KEY);
if (cert_status & net::CERT_STATUS_DATE_INVALID)
report->add_cert_error(CertLoggerRequest::ERR_CERT_DATE_INVALID);
if (cert_status & net::CERT_STATUS_VALIDITY_TOO_LONG)
report->add_cert_error(CertLoggerRequest::ERR_CERT_VALIDITY_TOO_LONG);
if (cert_status & net::CERT_STATUS_UNABLE_TO_CHECK_REVOCATION)
report->add_cert_error(
CertLoggerRequest::ERR_CERT_UNABLE_TO_CHECK_REVOCATION);
if (cert_status & net::CERT_STATUS_NO_REVOCATION_MECHANISM)
report->add_cert_error(CertLoggerRequest::ERR_CERT_NO_REVOCATION_MECHANISM);
}
bool CertificateChainToString(scoped_refptr<net::X509Certificate> cert,
std::string* result) {
std::vector<std::string> pem_encoded_chain;
if (!cert->GetPEMEncodedChain(&pem_encoded_chain))
return false;
*result = JoinString(pem_encoded_chain, std::string());
return true;
}
} // namespace
CertificateErrorReport::CertificateErrorReport()
: cert_report_(new CertLoggerRequest()) {
}
CertificateErrorReport::CertificateErrorReport(const std::string& hostname,
const net::SSLInfo& ssl_info)
: cert_report_(new CertLoggerRequest()) {
base::Time now = base::Time::Now();
cert_report_->set_time_usec(now.ToInternalValue());
cert_report_->set_hostname(hostname);
if (!CertificateChainToString(ssl_info.cert,
cert_report_->mutable_cert_chain())) {
LOG(ERROR) << "Could not get PEM encoded chain.";
}
if (ssl_info.unverified_cert &&
!CertificateChainToString(
ssl_info.unverified_cert,
cert_report_->mutable_unverified_cert_chain())) {
LOG(ERROR) << "Could not get PEM encoded unverified certificate chain.";
}
cert_report_->add_pin(ssl_info.pinning_failure_log);
AddCertStatusToReportErrors(ssl_info.cert_status, cert_report_.get());
}
CertificateErrorReport::~CertificateErrorReport() {
}
bool CertificateErrorReport::InitializeFromString(
const std::string& serialized_report) {
return cert_report_->ParseFromString(serialized_report);
}
bool CertificateErrorReport::Serialize(std::string* output) const {
return cert_report_->SerializeToString(output);
}
void CertificateErrorReport::SetInterstitialInfo(
const InterstitialReason& interstitial_reason,
const ProceedDecision& proceed_decision,
const Overridable& overridable) {
CertLoggerInterstitialInfo* interstitial_info =
cert_report_->mutable_interstitial_info();
switch (interstitial_reason) {
case INTERSTITIAL_SSL:
interstitial_info->set_interstitial_reason(
CertLoggerInterstitialInfo::INTERSTITIAL_SSL);
break;
case INTERSTITIAL_CAPTIVE_PORTAL:
interstitial_info->set_interstitial_reason(
CertLoggerInterstitialInfo::INTERSTITIAL_CAPTIVE_PORTAL);
break;
case INTERSTITIAL_CLOCK:
interstitial_info->set_interstitial_reason(
CertLoggerInterstitialInfo::INTERSTITIAL_CLOCK);
break;
}
interstitial_info->set_user_proceeded(proceed_decision == USER_PROCEEDED);
interstitial_info->set_overridable(overridable == INTERSTITIAL_OVERRIDABLE);
}
const std::string& CertificateErrorReport::hostname() const {
return cert_report_->hostname();
}
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