text: /*
   *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
   *
   *  Use of this source code is governed by a BSD-style license
   *  that can be found in the LICENSE file in the root of the source
   *  tree. An additional intellectual property rights grant can be found
   *  in the file PATENTS.  All contributing project authors may
   *  be found in the AUTHORS file in the root of the source tree.
   */
  
  #include "rtc_base/rtc_certificate.h"
  
  #include <memory>
  
  #include "rtc_base/checks.h"
  #include "rtc_base/ssl_certificate.h"
  #include "rtc_base/ssl_identity.h"
  #include "rtc_base/time_utils.h"
  
  namespace rtc {
  
  scoped_refptr<RTCCertificate> RTCCertificate::Create(
      std::unique_ptr<SSLIdentity> identity) {
    return new RTCCertificate(identity.release());
  }
  
  RTCCertificate::RTCCertificate(SSLIdentity* identity) : identity_(identity) {
    RTC_DCHECK(identity_);
  }
  
  RTCCertificate::~RTCCertificate() = default;
  
  uint64_t RTCCertificate::Expires() const {
    int64_t expires = GetSSLCertificate().CertificateExpirationTime();
    if (expires != -1)
      return static_cast<uint64_t>(expires) * kNumMillisecsPerSec;
    // If the expiration time could not be retrieved return an expired timestamp.
    return 0;  // = 1970-01-01
  }
  
  bool RTCCertificate::HasExpired(uint64_t now) const {
    return Expires() <= now;
  }
  
  const SSLCertificate& RTCCertificate::GetSSLCertificate() const {
    return identity_->certificate();
  }
  
  // Deprecated: TODO(benwright) - Remove once chromium is updated.
  const SSLCertificate& RTCCertificate::ssl_certificate() const {
    return identity_->certificate();
  }
  
  const SSLCertChain& RTCCertificate::GetSSLCertificateChain() const {
    return identity_->cert_chain();
  }
  
  RTCCertificatePEM RTCCertificate::ToPEM() const {
    return RTCCertificatePEM(identity_->PrivateKeyToPEMString(),
                             GetSSLCertificate().ToPEMString());
  }
  
  scoped_refptr<RTCCertificate> RTCCertificate::FromPEM(
      const RTCCertificatePEM& pem) {
    std::unique_ptr<SSLIdentity> identity(
        SSLIdentity::CreateFromPEMStrings(pem.private_key(), pem.certificate()));
    if (!identity)
      return nullptr;
    return new RTCCertificate(identity.release());
  }
  
  bool RTCCertificate::operator==(const RTCCertificate& certificate) const {
    return *this->identity_ == *certificate.identity_;
  }
  
  bool RTCCertificate::operator!=(const RTCCertificate& certificate) const {
    return !(*this == certificate);
  }
  
  }  // namespace rtc
  