Add m-esr52 at 52.6.0

1 files changed, 1635 insertions, 0 deletions

diff --git a/security/manager/ssl/nsNSSCertificate.cpp b/security/manager/ssl/nsNSSCertificate.cpp
new file mode 100644
index 000000000..12fca5065
--- /dev/null
+++ b/security/manager/ssl/nsNSSCertificate.cpp
@@ -0,0 +1,1635 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsNSSCertificate.h"
+
+#include "CertVerifier.h"
+#include "ExtendedValidation.h"
+#include "NSSCertDBTrustDomain.h"
+#include "certdb.h"
+#include "mozilla/Base64.h"
+#include "mozilla/Casting.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/Unused.h"
+#include "nsArray.h"
+#include "nsCOMPtr.h"
+#include "nsCRT.h"
+#include "nsICertificateDialogs.h"
+#include "nsIClassInfoImpl.h"
+#include "nsIObjectInputStream.h"
+#include "nsIObjectOutputStream.h"
+#include "nsISupportsPrimitives.h"
+#include "nsIURI.h"
+#include "nsIX509Cert.h"
+#include "nsNSSASN1Object.h"
+#include "nsNSSCertHelper.h"
+#include "nsNSSCertValidity.h"
+#include "nsNSSComponent.h" // for PIPNSS string bundle calls.
+#include "nsPK11TokenDB.h"
+#include "nsPKCS12Blob.h"
+#include "nsProxyRelease.h"
+#include "nsReadableUtils.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+#include "nsUnicharUtils.h"
+#include "nsXULAppAPI.h"
+#include "nspr.h"
+#include "pkix/pkixnss.h"
+#include "pkix/pkixtypes.h"
+#include "pkix/Result.h"
+#include "prerror.h"
+#include "prmem.h"
+#include "prprf.h"
+#include "secasn1.h"
+#include "secder.h"
+#include "secerr.h"
+#include "ssl.h"
+
+#ifdef XP_WIN
+#include <winsock.h> // for htonl
+#endif
+
+using namespace mozilla;
+using namespace mozilla::psm;
+
+extern LazyLogModule gPIPNSSLog;
+
+// This is being stored in an uint32_t that can otherwise
+// only take values from nsIX509Cert's list of cert types.
+// As nsIX509Cert is frozen, we choose a value not contained
+// in the list to mean not yet initialized.
+#define CERT_TYPE_NOT_YET_INITIALIZED (1 << 30)
+
+NS_IMPL_ISUPPORTS(nsNSSCertificate,
+                  nsIX509Cert,
+                  nsISerializable,
+                  nsIClassInfo)
+
+static NS_DEFINE_CID(kNSSComponentCID, NS_NSSCOMPONENT_CID);
+
+/*static*/ nsNSSCertificate*
+nsNSSCertificate::Create(CERTCertificate* cert)
+{
+  if (GeckoProcessType_Default != XRE_GetProcessType()) {
+    NS_ERROR("Trying to initialize nsNSSCertificate in a non-chrome process!");
+    return nullptr;
+  }
+  if (cert)
+    return new nsNSSCertificate(cert);
+  else
+    return new nsNSSCertificate();
+}
+
+nsNSSCertificate*
+nsNSSCertificate::ConstructFromDER(char* certDER, int derLen)
+{
+  // On non-chrome process prevent instantiation
+  if (GeckoProcessType_Default != XRE_GetProcessType())
+    return nullptr;
+
+  nsNSSCertificate* newObject = nsNSSCertificate::Create();
+  if (newObject && !newObject->InitFromDER(certDER, derLen)) {
+    delete newObject;
+    newObject = nullptr;
+  }
+
+  return newObject;
+}
+
+bool
+nsNSSCertificate::InitFromDER(char* certDER, int derLen)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return false;
+
+  if (!certDER || !derLen)
+    return false;
+
+  CERTCertificate* aCert = CERT_DecodeCertFromPackage(certDER, derLen);
+
+  if (!aCert)
+    return false;
+
+  if (!aCert->dbhandle)
+  {
+    aCert->dbhandle = CERT_GetDefaultCertDB();
+  }
+
+  mCert.reset(aCert);
+  return true;
+}
+
+nsNSSCertificate::nsNSSCertificate(CERTCertificate* cert)
+  : mCert(nullptr)
+  , mPermDelete(false)
+  , mCertType(CERT_TYPE_NOT_YET_INITIALIZED)
+{
+#if defined(DEBUG)
+  if (GeckoProcessType_Default != XRE_GetProcessType())
+    NS_ERROR("Trying to initialize nsNSSCertificate in a non-chrome process!");
+#endif
+
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return;
+
+  if (cert) {
+    mCert.reset(CERT_DupCertificate(cert));
+  }
+}
+
+nsNSSCertificate::nsNSSCertificate()
+  : mCert(nullptr)
+  , mPermDelete(false)
+  , mCertType(CERT_TYPE_NOT_YET_INITIALIZED)
+{
+  if (GeckoProcessType_Default != XRE_GetProcessType())
+    NS_ERROR("Trying to initialize nsNSSCertificate in a non-chrome process!");
+}
+
+nsNSSCertificate::~nsNSSCertificate()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return;
+  }
+  destructorSafeDestroyNSSReference();
+  shutdown(ShutdownCalledFrom::Object);
+}
+
+void nsNSSCertificate::virtualDestroyNSSReference()
+{
+  destructorSafeDestroyNSSReference();
+}
+
+void nsNSSCertificate::destructorSafeDestroyNSSReference()
+{
+  if (mPermDelete) {
+    if (mCertType == nsNSSCertificate::USER_CERT) {
+      nsCOMPtr<nsIInterfaceRequestor> cxt = new PipUIContext();
+      PK11_DeleteTokenCertAndKey(mCert.get(), cxt);
+    } else if (mCert->slot && !PK11_IsReadOnly(mCert->slot)) {
+      // If the list of built-ins does contain a non-removable
+      // copy of this certificate, our call will not remove
+      // the certificate permanently, but rather remove all trust.
+      SEC_DeletePermCertificate(mCert.get());
+    }
+  }
+
+  mCert = nullptr;
+}
+
+nsresult
+nsNSSCertificate::GetCertType(uint32_t* aCertType)
+{
+  if (mCertType == CERT_TYPE_NOT_YET_INITIALIZED) {
+     // only determine cert type once and cache it
+     mCertType = getCertType(mCert.get());
+  }
+  *aCertType = mCertType;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIsSelfSigned(bool* aIsSelfSigned)
+{
+  NS_ENSURE_ARG(aIsSelfSigned);
+
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  *aIsSelfSigned = mCert->isRoot;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIsBuiltInRoot(bool* aIsBuiltInRoot)
+{
+  NS_ENSURE_ARG(aIsBuiltInRoot);
+
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  pkix::Result rv = IsCertBuiltInRoot(mCert.get(), *aIsBuiltInRoot);
+  if (rv != pkix::Result::Success) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+nsresult
+nsNSSCertificate::MarkForPermDeletion()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  // make sure user is logged in to the token
+  nsCOMPtr<nsIInterfaceRequestor> ctx = new PipUIContext();
+
+  if (mCert->slot && PK11_NeedLogin(mCert->slot) &&
+      !PK11_NeedUserInit(mCert->slot) && !PK11_IsInternal(mCert->slot)) {
+    if (SECSuccess != PK11_Authenticate(mCert->slot, true, ctx)) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  mPermDelete = true;
+  return NS_OK;
+}
+
+/**
+ * Appends a pipnss bundle string to the given string.
+ *
+ * @param nssComponent For accessing the string bundle.
+ * @param bundleKey Key for the string to append.
+ * @param currentText The text to append to, using commas as separators.
+ */
+template<size_t N>
+void
+AppendBundleString(const NotNull<nsCOMPtr<nsINSSComponent>>& nssComponent,
+                   const char (&bundleKey)[N],
+        /*in/out*/ nsAString& currentText)
+{
+  nsAutoString bundleString;
+  nsresult rv = nssComponent->GetPIPNSSBundleString(bundleKey, bundleString);
+  if (NS_FAILED(rv)) {
+    return;
+  }
+
+  if (!currentText.IsEmpty()) {
+    currentText.Append(',');
+  }
+  currentText.Append(bundleString);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetKeyUsages(nsAString& text)
+{
+  text.Truncate();
+
+  nsCOMPtr<nsINSSComponent> nssComponent = do_GetService(kNSSComponentCID);
+  if (!nssComponent) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!mCert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!mCert->extensions) {
+    return NS_OK;
+  }
+
+  ScopedAutoSECItem keyUsageItem;
+  if (CERT_FindKeyUsageExtension(mCert.get(), &keyUsageItem) != SECSuccess) {
+    return PORT_GetError() == SEC_ERROR_EXTENSION_NOT_FOUND ? NS_OK
+                                                            : NS_ERROR_FAILURE;
+  }
+
+  unsigned char keyUsage = 0;
+  if (keyUsageItem.len) {
+    keyUsage = keyUsageItem.data[0];
+  }
+
+  NotNull<nsCOMPtr<nsINSSComponent>> wrappedNSSComponent =
+    WrapNotNull(nssComponent);
+  if (keyUsage & KU_DIGITAL_SIGNATURE) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUSign", text);
+  }
+  if (keyUsage & KU_NON_REPUDIATION) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUNonRep", text);
+  }
+  if (keyUsage & KU_KEY_ENCIPHERMENT) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUEnc", text);
+  }
+  if (keyUsage & KU_DATA_ENCIPHERMENT) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUDEnc", text);
+  }
+  if (keyUsage & KU_KEY_AGREEMENT) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUKA", text);
+  }
+  if (keyUsage & KU_KEY_CERT_SIGN) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUCertSign", text);
+  }
+  if (keyUsage & KU_CRL_SIGN) {
+    AppendBundleString(wrappedNSSComponent, "CertDumpKUCRLSign", text);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetDbKey(nsACString& aDbKey)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return GetDbKey(mCert, aDbKey);
+}
+
+nsresult
+nsNSSCertificate::GetDbKey(const UniqueCERTCertificate& cert, nsACString& aDbKey)
+{
+  static_assert(sizeof(uint64_t) == 8, "type size sanity check");
+  static_assert(sizeof(uint32_t) == 4, "type size sanity check");
+  // The format of the key is the base64 encoding of the following:
+  // 4 bytes: {0, 0, 0, 0} (this was intended to be the module ID, but it was
+  //                        never implemented)
+  // 4 bytes: {0, 0, 0, 0} (this was intended to be the slot ID, but it was
+  //                        never implemented)
+  // 4 bytes: <serial number length in big-endian order>
+  // 4 bytes: <DER-encoded issuer distinguished name length in big-endian order>
+  // n bytes: <bytes of serial number>
+  // m bytes: <DER-encoded issuer distinguished name>
+  nsAutoCString buf;
+  const char leadingZeroes[] = {0, 0, 0, 0, 0, 0, 0, 0};
+  buf.Append(leadingZeroes, sizeof(leadingZeroes));
+  uint32_t serialNumberLen = htonl(cert->serialNumber.len);
+  buf.Append(BitwiseCast<const char*, const uint32_t*>(&serialNumberLen),
+             sizeof(uint32_t));
+  uint32_t issuerLen = htonl(cert->derIssuer.len);
+  buf.Append(BitwiseCast<const char*, const uint32_t*>(&issuerLen),
+             sizeof(uint32_t));
+  buf.Append(BitwiseCast<char*, unsigned char*>(cert->serialNumber.data),
+             cert->serialNumber.len);
+  buf.Append(BitwiseCast<char*, unsigned char*>(cert->derIssuer.data),
+             cert->derIssuer.len);
+
+  return Base64Encode(buf, aDbKey);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetWindowTitle(nsAString& aWindowTitle)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  aWindowTitle.Truncate();
+
+  if (!mCert) {
+    NS_ERROR("Somehow got nullptr for mCert in nsNSSCertificate.");
+    return NS_ERROR_FAILURE;
+  }
+
+  UniquePORTString commonName(CERT_GetCommonName(&mCert->subject));
+
+  const char* titleOptions[] = {
+    mCert->nickname,
+    commonName.get(),
+    mCert->subjectName,
+    mCert->emailAddr
+  };
+
+  nsAutoCString titleOption;
+  for (size_t i = 0; i < ArrayLength(titleOptions); i++) {
+    titleOption = titleOptions[i];
+    if (titleOption.Length() > 0 && IsUTF8(titleOption)) {
+      CopyUTF8toUTF16(titleOption, aWindowTitle);
+      return NS_OK;
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetNickname(nsAString& aNickname)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  if (mCert->nickname) {
+    CopyUTF8toUTF16(mCert->nickname, aNickname);
+  } else {
+    nsresult rv;
+    nsCOMPtr<nsINSSComponent> nssComponent(do_GetService(kNSSComponentCID, &rv));
+    if (NS_FAILED(rv) || !nssComponent) {
+      return NS_ERROR_FAILURE;
+    }
+    nssComponent->GetPIPNSSBundleString("CertNoNickname", aNickname);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetEmailAddress(nsAString& aEmailAddress)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  if (mCert->emailAddr) {
+    CopyUTF8toUTF16(mCert->emailAddr, aEmailAddress);
+  } else {
+    nsresult rv;
+    nsCOMPtr<nsINSSComponent> nssComponent(do_GetService(kNSSComponentCID, &rv));
+    if (NS_FAILED(rv) || !nssComponent) {
+      return NS_ERROR_FAILURE;
+    }
+    nssComponent->GetPIPNSSBundleString("CertNoEmailAddress", aEmailAddress);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetEmailAddresses(uint32_t* aLength, char16_t*** aAddresses)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(aLength);
+  NS_ENSURE_ARG(aAddresses);
+
+  *aLength = 0;
+
+  const char* aAddr;
+  for (aAddr = CERT_GetFirstEmailAddress(mCert.get())
+       ;
+       aAddr
+       ;
+       aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr))
+  {
+    ++(*aLength);
+  }
+
+  *aAddresses = (char16_t**) moz_xmalloc(sizeof(char16_t*) * (*aLength));
+  if (!*aAddresses)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  uint32_t iAddr;
+  for (aAddr = CERT_GetFirstEmailAddress(mCert.get()), iAddr = 0
+       ;
+       aAddr
+       ;
+       aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr), ++iAddr)
+  {
+    (*aAddresses)[iAddr] = ToNewUnicode(NS_ConvertUTF8toUTF16(aAddr));
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::ContainsEmailAddress(const nsAString& aEmailAddress,
+                                       bool* result)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(result);
+  *result = false;
+
+  const char* aAddr = nullptr;
+  for (aAddr = CERT_GetFirstEmailAddress(mCert.get())
+       ;
+       aAddr
+       ;
+       aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr))
+  {
+    NS_ConvertUTF8toUTF16 certAddr(aAddr);
+    ToLowerCase(certAddr);
+
+    nsAutoString testAddr(aEmailAddress);
+    ToLowerCase(testAddr);
+
+    if (certAddr == testAddr)
+    {
+      *result = true;
+      break;
+    }
+
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetCommonName(nsAString& aCommonName)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aCommonName.Truncate();
+  if (mCert) {
+    UniquePORTString commonName(CERT_GetCommonName(&mCert->subject));
+    if (commonName) {
+      aCommonName = NS_ConvertUTF8toUTF16(commonName.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetOrganization(nsAString& aOrganization)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aOrganization.Truncate();
+  if (mCert) {
+    UniquePORTString organization(CERT_GetOrgName(&mCert->subject));
+    if (organization) {
+      aOrganization = NS_ConvertUTF8toUTF16(organization.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIssuerCommonName(nsAString& aCommonName)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aCommonName.Truncate();
+  if (mCert) {
+    UniquePORTString commonName(CERT_GetCommonName(&mCert->issuer));
+    if (commonName) {
+      aCommonName = NS_ConvertUTF8toUTF16(commonName.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIssuerOrganization(nsAString& aOrganization)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aOrganization.Truncate();
+  if (mCert) {
+    UniquePORTString organization(CERT_GetOrgName(&mCert->issuer));
+    if (organization) {
+      aOrganization = NS_ConvertUTF8toUTF16(organization.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIssuerOrganizationUnit(nsAString& aOrganizationUnit)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aOrganizationUnit.Truncate();
+  if (mCert) {
+    UniquePORTString organizationUnit(CERT_GetOrgUnitName(&mCert->issuer));
+    if (organizationUnit) {
+      aOrganizationUnit = NS_ConvertUTF8toUTF16(organizationUnit.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIssuer(nsIX509Cert** aIssuer)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(aIssuer);
+  *aIssuer = nullptr;
+
+  nsCOMPtr<nsIArray> chain;
+  nsresult rv;
+  rv = GetChain(getter_AddRefs(chain));
+  NS_ENSURE_SUCCESS(rv, rv);
+  uint32_t length;
+  if (!chain || NS_FAILED(chain->GetLength(&length)) || length == 0) {
+    return NS_ERROR_UNEXPECTED;
+  }
+  if (length == 1) { // No known issuer
+    return NS_OK;
+  }
+  nsCOMPtr<nsIX509Cert> cert;
+  chain->QueryElementAt(1, NS_GET_IID(nsIX509Cert), getter_AddRefs(cert));
+  if (!cert) {
+    return NS_ERROR_UNEXPECTED;
+  }
+  cert.forget(aIssuer);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetOrganizationalUnit(nsAString& aOrganizationalUnit)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aOrganizationalUnit.Truncate();
+  if (mCert) {
+    UniquePORTString orgunit(CERT_GetOrgUnitName(&mCert->subject));
+    if (orgunit) {
+      aOrganizationalUnit = NS_ConvertUTF8toUTF16(orgunit.get());
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetChain(nsIArray** _rvChain)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(_rvChain);
+  MOZ_LOG(gPIPNSSLog, LogLevel::Debug, ("Getting chain for \"%s\"\n", mCert->nickname));
+
+  mozilla::pkix::Time now(mozilla::pkix::Now());
+
+  RefPtr<SharedCertVerifier> certVerifier(GetDefaultCertVerifier());
+  NS_ENSURE_TRUE(certVerifier, NS_ERROR_UNEXPECTED);
+
+  UniqueCERTCertList nssChain;
+  // We want to test all usages, but we start with server because most of the
+  // time Firefox users care about server certs.
+  if (certVerifier->VerifyCert(mCert.get(), certificateUsageSSLServer, now,
+                               nullptr, /*XXX fixme*/
+                               nullptr, /* hostname */
+                               nssChain,
+                               CertVerifier::FLAG_LOCAL_ONLY)
+        != mozilla::pkix::Success) {
+    nssChain = nullptr;
+    // keep going
+  }
+
+  // This is the whitelist of all non-SSLServer usages that are supported by
+  // verifycert.
+  const int otherUsagesToTest = certificateUsageSSLClient |
+                                certificateUsageSSLCA |
+                                certificateUsageEmailSigner |
+                                certificateUsageEmailRecipient |
+                                certificateUsageObjectSigner |
+                                certificateUsageStatusResponder;
+  for (int usage = certificateUsageSSLClient;
+       usage < certificateUsageAnyCA && !nssChain;
+       usage = usage << 1) {
+    if ((usage & otherUsagesToTest) == 0) {
+      continue;
+    }
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("pipnss: PKIX attempting chain(%d) for '%s'\n",
+            usage, mCert->nickname));
+    if (certVerifier->VerifyCert(mCert.get(), usage, now,
+                                 nullptr, /*XXX fixme*/
+                                 nullptr, /*hostname*/
+                                 nssChain,
+                                 CertVerifier::FLAG_LOCAL_ONLY)
+          != mozilla::pkix::Success) {
+      nssChain = nullptr;
+      // keep going
+    }
+  }
+
+  if (!nssChain) {
+    // There is not verified path for the chain, however we still want to
+    // present to the user as much of a possible chain as possible, in the case
+    // where there was a problem with the cert or the issuers.
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("pipnss: getchain :CertVerify failed to get chain for '%s'\n",
+            mCert->nickname));
+    nssChain = UniqueCERTCertList(
+      CERT_GetCertChainFromCert(mCert.get(), PR_Now(), certUsageSSLClient));
+  }
+  if (!nssChain) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // enumerate the chain for scripting purposes
+  nsCOMPtr<nsIMutableArray> array = nsArrayBase::Create();
+  if (!array) {
+    return NS_ERROR_FAILURE;
+  }
+  CERTCertListNode* node;
+  for (node = CERT_LIST_HEAD(nssChain.get());
+       !CERT_LIST_END(node, nssChain.get());
+       node = CERT_LIST_NEXT(node)) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("adding %s to chain\n", node->cert->nickname));
+    nsCOMPtr<nsIX509Cert> cert = nsNSSCertificate::Create(node->cert);
+    array->AppendElement(cert, false);
+  }
+  *_rvChain = array;
+  NS_IF_ADDREF(*_rvChain);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetAllTokenNames(uint32_t* aLength, char16_t*** aTokenNames)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(aLength);
+  NS_ENSURE_ARG(aTokenNames);
+  *aLength = 0;
+  *aTokenNames = nullptr;
+
+  // Get the slots from NSS
+  MOZ_LOG(gPIPNSSLog, LogLevel::Debug, ("Getting slots for \"%s\"\n", mCert->nickname));
+  UniquePK11SlotList slots(PK11_GetAllSlotsForCert(mCert.get(), nullptr));
+  if (!slots) {
+    if (PORT_GetError() == SEC_ERROR_NO_TOKEN) {
+      return NS_OK; // List of slots is empty, return empty array
+    }
+    return NS_ERROR_FAILURE;
+  }
+
+  // read the token names from slots
+  PK11SlotListElement* le;
+
+  for (le = slots->head; le; le = le->next) {
+    ++(*aLength);
+  }
+
+  *aTokenNames = (char16_t**) moz_xmalloc(sizeof(char16_t*) * (*aLength));
+  if (!*aTokenNames) {
+    *aLength = 0;
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  uint32_t iToken;
+  for (le = slots->head, iToken = 0; le; le = le->next, ++iToken) {
+    char* token = PK11_GetTokenName(le->slot);
+    (*aTokenNames)[iToken] = ToNewUnicode(NS_ConvertUTF8toUTF16(token));
+    if (!(*aTokenNames)[iToken]) {
+      NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(iToken, *aTokenNames);
+      *aLength = 0;
+      *aTokenNames = nullptr;
+      return NS_ERROR_OUT_OF_MEMORY;
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetSubjectName(nsAString& _subjectName)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  _subjectName.Truncate();
+  if (mCert->subjectName) {
+    _subjectName = NS_ConvertUTF8toUTF16(mCert->subjectName);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetIssuerName(nsAString& _issuerName)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  _issuerName.Truncate();
+  if (mCert->issuerName) {
+    _issuerName = NS_ConvertUTF8toUTF16(mCert->issuerName);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetSerialNumber(nsAString& _serialNumber)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  _serialNumber.Truncate();
+  UniquePORTString tmpstr(CERT_Hexify(&mCert->serialNumber, 1));
+  if (tmpstr) {
+    _serialNumber = NS_ConvertASCIItoUTF16(tmpstr.get());
+    return NS_OK;
+  }
+  return NS_ERROR_FAILURE;
+}
+
+nsresult
+nsNSSCertificate::GetCertificateHash(nsAString& aFingerprint, SECOidTag aHashAlg)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  aFingerprint.Truncate();
+  Digest digest;
+  nsresult rv = digest.DigestBuf(aHashAlg, mCert->derCert.data,
+                                 mCert->derCert.len);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  // CERT_Hexify's second argument is an int that is interpreted as a boolean
+  UniquePORTString fpStr(CERT_Hexify(const_cast<SECItem*>(&digest.get()), 1));
+  if (!fpStr) {
+    return NS_ERROR_FAILURE;
+  }
+
+  aFingerprint.AssignASCII(fpStr.get());
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetSha256Fingerprint(nsAString& aSha256Fingerprint)
+{
+  return GetCertificateHash(aSha256Fingerprint, SEC_OID_SHA256);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetSha1Fingerprint(nsAString& _sha1Fingerprint)
+{
+  return GetCertificateHash(_sha1Fingerprint, SEC_OID_SHA1);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetTokenName(nsAString& aTokenName)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  aTokenName.Truncate();
+  if (mCert) {
+    // HACK alert
+    // When the trust of a builtin cert is modified, NSS copies it into the
+    // cert db.  At this point, it is now "managed" by the user, and should
+    // not be listed with the builtins.  However, in the collection code
+    // used by PK11_ListCerts, the cert is found in the temp db, where it
+    // has been loaded from the token.  Though the trust is correct (grabbed
+    // from the cert db), the source is wrong.  I believe this is a safe
+    // way to work around this.
+    if (mCert->slot) {
+      char* token = PK11_GetTokenName(mCert->slot);
+      if (token) {
+        aTokenName = NS_ConvertUTF8toUTF16(token);
+      }
+    } else {
+      nsresult rv;
+      nsAutoString tok;
+      nsCOMPtr<nsINSSComponent> nssComponent(do_GetService(kNSSComponentCID, &rv));
+      if (NS_FAILED(rv)) return rv;
+      rv = nssComponent->GetPIPNSSBundleString("InternalToken", tok);
+      if (NS_SUCCEEDED(rv))
+        aTokenName = tok;
+    }
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetSha256SubjectPublicKeyInfoDigest(nsACString& aSha256SPKIDigest)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  aSha256SPKIDigest.Truncate();
+  Digest digest;
+  nsresult rv = digest.DigestBuf(SEC_OID_SHA256, mCert->derPublicKey.data,
+                                 mCert->derPublicKey.len);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+  rv = Base64Encode(nsDependentCSubstring(
+                      BitwiseCast<char*, unsigned char*>(digest.get().data),
+                      digest.get().len),
+                    aSha256SPKIDigest);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetRawDER(uint32_t* aLength, uint8_t** aArray)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  if (mCert) {
+    *aArray = (uint8_t*)moz_xmalloc(mCert->derCert.len);
+    if (*aArray) {
+      memcpy(*aArray, mCert->derCert.data, mCert->derCert.len);
+      *aLength = mCert->derCert.len;
+      return NS_OK;
+    }
+  }
+  *aLength = 0;
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::ExportAsCMS(uint32_t chainMode,
+                              uint32_t* aLength, uint8_t** aArray)
+{
+  NS_ENSURE_ARG(aLength);
+  NS_ENSURE_ARG(aArray);
+
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  if (!mCert)
+    return NS_ERROR_FAILURE;
+
+  switch (chainMode) {
+    case nsIX509Cert::CMS_CHAIN_MODE_CertOnly:
+    case nsIX509Cert::CMS_CHAIN_MODE_CertChain:
+    case nsIX509Cert::CMS_CHAIN_MODE_CertChainWithRoot:
+      break;
+    default:
+      return NS_ERROR_INVALID_ARG;
+  }
+
+  UniqueNSSCMSMessage cmsg(NSS_CMSMessage_Create(nullptr));
+  if (!cmsg) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - can't create CMS message\n"));
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  // first, create SignedData with the certificate only (no chain)
+  UniqueNSSCMSSignedData sigd(
+    NSS_CMSSignedData_CreateCertsOnly(cmsg.get(), mCert.get(), false));
+  if (!sigd) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - can't create SignedData\n"));
+    return NS_ERROR_FAILURE;
+  }
+
+  // Calling NSS_CMSSignedData_CreateCertsOnly() will not allow us
+  // to specify the inclusion of the root, but CERT_CertChainFromCert() does.
+  // Since CERT_CertChainFromCert() also includes the certificate itself,
+  // we have to start at the issuing cert (to avoid duplicate certs
+  // in the SignedData).
+  if (chainMode == nsIX509Cert::CMS_CHAIN_MODE_CertChain ||
+      chainMode == nsIX509Cert::CMS_CHAIN_MODE_CertChainWithRoot) {
+    UniqueCERTCertificate issuerCert(
+      CERT_FindCertIssuer(mCert.get(), PR_Now(), certUsageAnyCA));
+    // the issuerCert of a self signed root is the cert itself,
+    // so make sure we're not adding duplicates, again
+    if (issuerCert && issuerCert != mCert) {
+      bool includeRoot =
+        (chainMode == nsIX509Cert::CMS_CHAIN_MODE_CertChainWithRoot);
+      UniqueCERTCertificateList certChain(
+        CERT_CertChainFromCert(issuerCert.get(), certUsageAnyCA, includeRoot));
+      if (certChain) {
+        if (NSS_CMSSignedData_AddCertList(sigd.get(), certChain.get())
+              == SECSuccess) {
+          Unused << certChain.release();
+        }
+        else {
+          MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+                 ("nsNSSCertificate::ExportAsCMS - can't add chain\n"));
+          return NS_ERROR_FAILURE;
+        }
+      }
+      else {
+        // try to add the issuerCert, at least
+        if (NSS_CMSSignedData_AddCertificate(sigd.get(), issuerCert.get())
+              == SECSuccess) {
+          Unused << issuerCert.release();
+        }
+        else {
+          MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+                 ("nsNSSCertificate::ExportAsCMS - can't add issuer cert\n"));
+          return NS_ERROR_FAILURE;
+        }
+      }
+    }
+  }
+
+  NSSCMSContentInfo* cinfo = NSS_CMSMessage_GetContentInfo(cmsg.get());
+  if (NSS_CMSContentInfo_SetContent_SignedData(cmsg.get(), cinfo, sigd.get())
+       == SECSuccess) {
+    Unused << sigd.release();
+  }
+  else {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - can't attach SignedData\n"));
+    return NS_ERROR_FAILURE;
+  }
+
+  UniquePLArenaPool arena(PORT_NewArena(1024));
+  if (!arena) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - out of memory\n"));
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  SECItem certP7 = { siBuffer, nullptr, 0 };
+  NSSCMSEncoderContext* ecx = NSS_CMSEncoder_Start(cmsg.get(), nullptr, nullptr,
+                                                   &certP7, arena.get(), nullptr,
+                                                   nullptr, nullptr, nullptr,
+                                                   nullptr, nullptr);
+  if (!ecx) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - can't create encoder context\n"));
+    return NS_ERROR_FAILURE;
+  }
+
+  if (NSS_CMSEncoder_Finish(ecx) != SECSuccess) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+           ("nsNSSCertificate::ExportAsCMS - failed to add encoded data\n"));
+    return NS_ERROR_FAILURE;
+  }
+
+  *aArray = (uint8_t*)moz_xmalloc(certP7.len);
+  if (!*aArray)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  memcpy(*aArray, certP7.data, certP7.len);
+  *aLength = certP7.len;
+  return NS_OK;
+}
+
+CERTCertificate*
+nsNSSCertificate::GetCert()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return nullptr;
+
+  return (mCert) ? CERT_DupCertificate(mCert.get()) : nullptr;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetValidity(nsIX509CertValidity** aValidity)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(aValidity);
+
+  if (!mCert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIX509CertValidity> validity = new nsX509CertValidity(mCert);
+  validity.forget(aValidity);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetASN1Structure(nsIASN1Object** aASN1Structure)
+{
+  NS_ENSURE_ARG_POINTER(aASN1Structure);
+  return CreateASN1Struct(aASN1Structure);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::Equals(nsIX509Cert* other, bool* result)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown())
+    return NS_ERROR_NOT_AVAILABLE;
+
+  NS_ENSURE_ARG(other);
+  NS_ENSURE_ARG(result);
+
+  UniqueCERTCertificate cert(other->GetCert());
+  *result = (mCert.get() == cert.get());
+  return NS_OK;
+}
+
+namespace mozilla {
+
+// TODO(bug 1036065): It seems like we only construct CERTCertLists for the
+// purpose of constructing nsNSSCertLists, so maybe we should change this
+// function to output an nsNSSCertList instead.
+SECStatus
+ConstructCERTCertListFromReversedDERArray(
+  const mozilla::pkix::DERArray& certArray,
+  /*out*/ UniqueCERTCertList& certList)
+{
+  certList = UniqueCERTCertList(CERT_NewCertList());
+  if (!certList) {
+    return SECFailure;
+  }
+
+  CERTCertDBHandle* certDB(CERT_GetDefaultCertDB()); // non-owning
+
+  size_t numCerts = certArray.GetLength();
+  for (size_t i = 0; i < numCerts; ++i) {
+    SECItem certDER(UnsafeMapInputToSECItem(*certArray.GetDER(i)));
+    UniqueCERTCertificate cert(CERT_NewTempCertificate(certDB, &certDER,
+                                                       nullptr, false, true));
+    if (!cert) {
+      return SECFailure;
+    }
+    // certArray is ordered with the root first, but we want the resulting
+    // certList to have the root last.
+    if (CERT_AddCertToListHead(certList.get(), cert.get()) != SECSuccess) {
+      return SECFailure;
+    }
+    Unused << cert.release(); // cert is now owned by certList.
+  }
+
+  return SECSuccess;
+}
+
+} // namespace mozilla
+
+NS_IMPL_CLASSINFO(nsNSSCertList,
+                  nullptr,
+                  // inferred from nsIX509Cert
+                  nsIClassInfo::THREADSAFE,
+                  NS_X509CERTLIST_CID)
+
+NS_IMPL_ISUPPORTS_CI(nsNSSCertList,
+                     nsIX509CertList,
+                     nsISerializable)
+
+nsNSSCertList::nsNSSCertList(UniqueCERTCertList certList,
+                             const nsNSSShutDownPreventionLock& proofOfLock)
+{
+  if (certList) {
+    mCertList = Move(certList);
+  } else {
+    mCertList = UniqueCERTCertList(CERT_NewCertList());
+  }
+}
+
+nsNSSCertList::nsNSSCertList()
+{
+  mCertList = UniqueCERTCertList(CERT_NewCertList());
+}
+
+nsNSSCertList::~nsNSSCertList()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return;
+  }
+  destructorSafeDestroyNSSReference();
+  shutdown(ShutdownCalledFrom::Object);
+}
+
+void nsNSSCertList::virtualDestroyNSSReference()
+{
+  destructorSafeDestroyNSSReference();
+}
+
+void nsNSSCertList::destructorSafeDestroyNSSReference()
+{
+  mCertList = nullptr;
+}
+
+NS_IMETHODIMP
+nsNSSCertList::AddCert(nsIX509Cert* aCert)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  CERTCertificate* cert = aCert->GetCert();
+  if (!cert) {
+    NS_ERROR("Somehow got nullptr for mCertificate in nsNSSCertificate.");
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!mCertList) {
+    NS_ERROR("Somehow got nullptr for mCertList in nsNSSCertList.");
+    return NS_ERROR_FAILURE;
+  }
+  // XXX: check return value!
+  CERT_AddCertToListTail(mCertList.get(), cert);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertList::DeleteCert(nsIX509Cert* aCert)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  CERTCertificate* cert = aCert->GetCert();
+  CERTCertListNode* node;
+
+  if (!cert) {
+    NS_ERROR("Somehow got nullptr for mCertificate in nsNSSCertificate.");
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!mCertList) {
+    NS_ERROR("Somehow got nullptr for mCertList in nsNSSCertList.");
+    return NS_ERROR_FAILURE;
+  }
+
+  for (node = CERT_LIST_HEAD(mCertList.get());
+       !CERT_LIST_END(node, mCertList.get()); node = CERT_LIST_NEXT(node)) {
+    if (node->cert == cert) {
+	CERT_RemoveCertListNode(node);
+        return NS_OK;
+    }
+  }
+  return NS_OK; // XXX Should we fail if we couldn't find it?
+}
+
+UniqueCERTCertList
+nsNSSCertList::DupCertList(const UniqueCERTCertList& certList,
+                           const nsNSSShutDownPreventionLock& /*proofOfLock*/)
+{
+  if (!certList) {
+    return nullptr;
+  }
+
+  UniqueCERTCertList newList(CERT_NewCertList());
+  if (!newList) {
+    return nullptr;
+  }
+
+  for (CERTCertListNode* node = CERT_LIST_HEAD(certList);
+       !CERT_LIST_END(node, certList);
+       node = CERT_LIST_NEXT(node)) {
+    UniqueCERTCertificate cert(CERT_DupCertificate(node->cert));
+    if (!cert) {
+      return nullptr;
+    }
+
+    if (CERT_AddCertToListTail(newList.get(), cert.get()) != SECSuccess) {
+      return nullptr;
+    }
+
+    Unused << cert.release(); // Ownership transferred to the cert list.
+  }
+  return newList;
+}
+
+CERTCertList*
+nsNSSCertList::GetRawCertList()
+{
+  // This function should only be called after acquiring a
+  // nsNSSShutDownPreventionLock. It's difficult to enforce this in code since
+  // this is an implementation of an XPCOM interface function (albeit a
+  // C++-only one), so we acquire the (reentrant) lock and check for shutdown
+  // ourselves here. At the moment it appears that only nsCertTree uses this
+  // function. When that gets removed and replaced by a more reasonable
+  // implementation of the certificate manager, this function can be removed.
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return nullptr;
+  }
+  return mCertList.get();
+}
+
+NS_IMETHODIMP
+nsNSSCertList::Write(nsIObjectOutputStream* aStream)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  NS_ENSURE_STATE(mCertList);
+  nsresult rv = NS_OK;
+
+  // First, enumerate the certs to get the length of the list
+  uint32_t certListLen = 0;
+  CERTCertListNode* node = nullptr;
+  for (node = CERT_LIST_HEAD(mCertList);
+       !CERT_LIST_END(node, mCertList);
+       node = CERT_LIST_NEXT(node), ++certListLen) {
+  }
+
+  // Write the length of the list
+  rv = aStream->Write32(certListLen);
+
+  // Repeat the loop, and serialize each certificate
+  node = nullptr;
+  for (node = CERT_LIST_HEAD(mCertList);
+       !CERT_LIST_END(node, mCertList);
+       node = CERT_LIST_NEXT(node))
+  {
+    nsCOMPtr<nsIX509Cert> cert = nsNSSCertificate::Create(node->cert);
+    if (!cert) {
+      rv = NS_ERROR_OUT_OF_MEMORY;
+      break;
+    }
+
+    nsCOMPtr<nsISerializable> serializableCert = do_QueryInterface(cert);
+    rv = aStream->WriteCompoundObject(serializableCert, NS_GET_IID(nsIX509Cert), true);
+    if (NS_FAILED(rv)) {
+      break;
+    }
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsNSSCertList::Read(nsIObjectInputStream* aStream)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  NS_ENSURE_STATE(mCertList);
+  nsresult rv = NS_OK;
+
+  uint32_t certListLen;
+  rv = aStream->Read32(&certListLen);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  for(uint32_t i = 0; i < certListLen; ++i) {
+    nsCOMPtr<nsISupports> certSupports;
+    rv = aStream->ReadObject(true, getter_AddRefs(certSupports));
+    if (NS_FAILED(rv)) {
+      break;
+    }
+
+    nsCOMPtr<nsIX509Cert> cert = do_QueryInterface(certSupports);
+    rv = AddCert(cert);
+    if (NS_FAILED(rv)) {
+      break;
+    }
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsNSSCertList::GetEnumerator(nsISimpleEnumerator** _retval)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  if (!mCertList) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsISimpleEnumerator> enumerator =
+    new nsNSSCertListEnumerator(mCertList, locker);
+
+  enumerator.forget(_retval);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertList::Equals(nsIX509CertList* other, bool* result)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  NS_ENSURE_ARG(result);
+  *result = true;
+
+  nsresult rv;
+
+  nsCOMPtr<nsISimpleEnumerator> selfEnumerator;
+  rv = GetEnumerator(getter_AddRefs(selfEnumerator));
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsISimpleEnumerator> otherEnumerator;
+  rv = other->GetEnumerator(getter_AddRefs(otherEnumerator));
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsISupports> selfSupports;
+  nsCOMPtr<nsISupports> otherSupports;
+  while (NS_SUCCEEDED(selfEnumerator->GetNext(getter_AddRefs(selfSupports)))) {
+    if (NS_SUCCEEDED(otherEnumerator->GetNext(getter_AddRefs(otherSupports)))) {
+      nsCOMPtr<nsIX509Cert> selfCert = do_QueryInterface(selfSupports);
+      nsCOMPtr<nsIX509Cert> otherCert = do_QueryInterface(otherSupports);
+
+      bool certsEqual = false;
+      rv = selfCert->Equals(otherCert, &certsEqual);
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      if (!certsEqual) {
+        *result = false;
+        break;
+      }
+    } else {
+      // other is shorter than self
+      *result = false;
+      break;
+    }
+  }
+
+  // Make sure self is the same length as other
+  bool otherHasMore = false;
+  rv = otherEnumerator->HasMoreElements(&otherHasMore);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  if (otherHasMore) {
+    *result = false;
+  }
+
+  return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(nsNSSCertListEnumerator, nsISimpleEnumerator)
+
+nsNSSCertListEnumerator::nsNSSCertListEnumerator(
+  const UniqueCERTCertList& certList,
+  const nsNSSShutDownPreventionLock& proofOfLock)
+{
+  MOZ_ASSERT(certList);
+  mCertList = nsNSSCertList::DupCertList(certList, proofOfLock);
+}
+
+nsNSSCertListEnumerator::~nsNSSCertListEnumerator()
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return;
+  }
+  destructorSafeDestroyNSSReference();
+  shutdown(ShutdownCalledFrom::Object);
+}
+
+void nsNSSCertListEnumerator::virtualDestroyNSSReference()
+{
+  destructorSafeDestroyNSSReference();
+}
+
+void nsNSSCertListEnumerator::destructorSafeDestroyNSSReference()
+{
+  mCertList = nullptr;
+}
+
+NS_IMETHODIMP
+nsNSSCertListEnumerator::HasMoreElements(bool* _retval)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  NS_ENSURE_TRUE(mCertList, NS_ERROR_FAILURE);
+
+  *_retval = !CERT_LIST_EMPTY(mCertList);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertListEnumerator::GetNext(nsISupports** _retval)
+{
+  nsNSSShutDownPreventionLock locker;
+  if (isAlreadyShutDown()) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  NS_ENSURE_TRUE(mCertList, NS_ERROR_FAILURE);
+
+  CERTCertListNode* node = CERT_LIST_HEAD(mCertList);
+  if (CERT_LIST_END(node, mCertList)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIX509Cert> nssCert = nsNSSCertificate::Create(node->cert);
+  if (!nssCert) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  nssCert.forget(_retval);
+
+  CERT_RemoveCertListNode(node);
+  return NS_OK;
+}
+
+// NB: This serialization must match that of nsNSSCertificateFakeTransport.
+NS_IMETHODIMP
+nsNSSCertificate::Write(nsIObjectOutputStream* aStream)
+{
+  NS_ENSURE_STATE(mCert);
+  // This field used to be the cached EV status, but it is no longer necessary.
+  nsresult rv = aStream->Write32(0);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  rv = aStream->Write32(mCert->derCert.len);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  return aStream->WriteByteArray(mCert->derCert.data, mCert->derCert.len);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::Read(nsIObjectInputStream* aStream)
+{
+  NS_ENSURE_STATE(!mCert);
+
+  // This field is no longer used.
+  uint32_t unusedCachedEVStatus;
+  nsresult rv = aStream->Read32(&unusedCachedEVStatus);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  uint32_t len;
+  rv = aStream->Read32(&len);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsXPIDLCString str;
+  rv = aStream->ReadBytes(len, getter_Copies(str));
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  if (!InitFromDER(const_cast<char*>(str.get()), len)) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetInterfaces(uint32_t* count, nsIID*** array)
+{
+  *count = 0;
+  *array = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetScriptableHelper(nsIXPCScriptable** _retval)
+{
+  *_retval = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetContractID(char** aContractID)
+{
+  *aContractID = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetClassDescription(char** aClassDescription)
+{
+  *aClassDescription = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetClassID(nsCID** aClassID)
+{
+  *aClassID = (nsCID*) moz_xmalloc(sizeof(nsCID));
+  if (!*aClassID)
+    return NS_ERROR_OUT_OF_MEMORY;
+  return GetClassIDNoAlloc(*aClassID);
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetFlags(uint32_t* aFlags)
+{
+  *aFlags = nsIClassInfo::THREADSAFE;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificate::GetClassIDNoAlloc(nsCID* aClassIDNoAlloc)
+{
+  static NS_DEFINE_CID(kNSSCertificateCID, NS_X509CERT_CID);
+
+  *aClassIDNoAlloc = kNSSCertificateCID;
+  return NS_OK;
+}