Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1356 insertions, 0 deletions

diff --git a/security/manager/ssl/nsNSSCertificateDB.cpp b/security/manager/ssl/nsNSSCertificateDB.cpp
new file mode 100644
index 0000000000..3a760734b3
--- /dev/null
+++ b/security/manager/ssl/nsNSSCertificateDB.cpp
@@ -0,0 +1,1356 @@
+/* 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 "nsNSSCertificateDB.h"
+
+#include "CertVerifier.h"
+#include "CryptoTask.h"
+#include "ExtendedValidation.h"
+#include "NSSCertDBTrustDomain.h"
+#include "SharedSSLState.h"
+#include "certdb.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/Base64.h"
+#include "mozilla/Casting.h"
+#include "mozilla/Logging.h"
+#include "mozilla/Services.h"
+#include "mozilla/Unused.h"
+#include "mozpkix/Time.h"
+#include "mozpkix/pkixnss.h"
+#include "mozpkix/pkixtypes.h"
+#include "nsArray.h"
+#include "nsArrayUtils.h"
+#include "nsCOMPtr.h"
+#include "nsComponentManagerUtils.h"
+#include "nsICertificateDialogs.h"
+#include "nsIFile.h"
+#include "nsIMutableArray.h"
+#include "nsIObserverService.h"
+#include "nsIPrompt.h"
+#include "nsNSSCertHelper.h"
+#include "nsNSSCertTrust.h"
+#include "nsNSSCertificate.h"
+#include "nsNSSComponent.h"
+#include "nsNSSHelper.h"
+#include "nsPKCS12Blob.h"
+#include "nsPromiseFlatString.h"
+#include "nsProxyRelease.h"
+#include "nsReadableUtils.h"
+#include "nsThreadUtils.h"
+#include "nspr.h"
+#include "secasn1.h"
+#include "secder.h"
+#include "secerr.h"
+#include "ssl.h"
+
+#ifdef XP_WIN
+#  include <winsock.h>  // for ntohl
+#endif
+
+using namespace mozilla;
+using namespace mozilla::psm;
+
+extern LazyLogModule gPIPNSSLog;
+
+NS_IMPL_ISUPPORTS(nsNSSCertificateDB, nsIX509CertDB)
+
+NS_IMETHODIMP
+nsNSSCertificateDB::FindCertByDBKey(const nsACString& aDBKey,
+                                    /*out*/ nsIX509Cert** _cert) {
+  NS_ENSURE_ARG_POINTER(_cert);
+  *_cert = nullptr;
+
+  if (aDBKey.IsEmpty()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  nsresult rv = BlockUntilLoadableCertsLoaded();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  UniqueCERTCertificate cert;
+  rv = FindCertByDBKey(aDBKey, cert);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  // If we can't find the certificate, that's not an error. Just return null.
+  if (!cert) {
+    return NS_OK;
+  }
+  nsCOMPtr<nsIX509Cert> nssCert = new nsNSSCertificate(cert.get());
+  nssCert.forget(_cert);
+  return NS_OK;
+}
+
+nsresult nsNSSCertificateDB::FindCertByDBKey(const nsACString& aDBKey,
+                                             UniqueCERTCertificate& cert) {
+  static_assert(sizeof(uint64_t) == 8, "type size sanity check");
+  static_assert(sizeof(uint32_t) == 4, "type size sanity check");
+  // (From nsNSSCertificate::GetDbKey)
+  // 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 decoded;
+  nsAutoCString tmpDBKey(aDBKey);
+  // Filter out any whitespace for backwards compatibility.
+  tmpDBKey.StripWhitespace();
+  nsresult rv = Base64Decode(tmpDBKey, decoded);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  if (decoded.Length() < 16) {
+    return NS_ERROR_ILLEGAL_INPUT;
+  }
+  const char* reader = decoded.BeginReading();
+  uint64_t zeroes = *BitwiseCast<const uint64_t*, const char*>(reader);
+  if (zeroes != 0) {
+    return NS_ERROR_ILLEGAL_INPUT;
+  }
+  reader += sizeof(uint64_t);
+  // Note: We surround the ntohl() argument with parentheses to stop the macro
+  //       from thinking two arguments were passed.
+  uint32_t serialNumberLen =
+      ntohl((*BitwiseCast<const uint32_t*, const char*>(reader)));
+  reader += sizeof(uint32_t);
+  uint32_t issuerLen =
+      ntohl((*BitwiseCast<const uint32_t*, const char*>(reader)));
+  reader += sizeof(uint32_t);
+  if (decoded.Length() != 16ULL + serialNumberLen + issuerLen) {
+    return NS_ERROR_ILLEGAL_INPUT;
+  }
+  CERTIssuerAndSN issuerSN;
+  issuerSN.serialNumber.len = serialNumberLen;
+  issuerSN.serialNumber.data = BitwiseCast<unsigned char*, const char*>(reader);
+  reader += serialNumberLen;
+  issuerSN.derIssuer.len = issuerLen;
+  issuerSN.derIssuer.data = BitwiseCast<unsigned char*, const char*>(reader);
+  reader += issuerLen;
+  MOZ_ASSERT(reader == decoded.EndReading());
+
+  cert.reset(CERT_FindCertByIssuerAndSN(CERT_GetDefaultCertDB(), &issuerSN));
+  return NS_OK;
+}
+
+SECStatus collect_certs(void* arg, SECItem** certs, int numcerts) {
+  nsTArray<nsTArray<uint8_t>>* certsArray =
+      reinterpret_cast<nsTArray<nsTArray<uint8_t>>*>(arg);
+
+  while (numcerts--) {
+    nsTArray<uint8_t> certArray;
+    SECItem* cert = *certs;
+    certArray.AppendElements(cert->data, cert->len);
+    certsArray->AppendElement(std::move(certArray));
+    certs++;
+  }
+  return (SECSuccess);
+}
+
+nsresult nsNSSCertificateDB::getCertsFromPackage(
+    nsTArray<nsTArray<uint8_t>>& collectArgs, uint8_t* data, uint32_t length) {
+  if (CERT_DecodeCertPackage(BitwiseCast<char*, uint8_t*>(data), length,
+                             collect_certs, &collectArgs) != SECSuccess) {
+    return NS_ERROR_FAILURE;
+  }
+  return NS_OK;
+}
+
+// When using the sql-backed softoken, trust settings are authenticated using a
+// key in the secret database. Thus, if the user has a password, we need to
+// authenticate to the token in order to be able to change trust settings.
+SECStatus ChangeCertTrustWithPossibleAuthentication(
+    const UniqueCERTCertificate& cert, CERTCertTrust& trust, void* ctx) {
+  MOZ_ASSERT(cert, "cert must be non-null");
+  if (!cert) {
+    PR_SetError(SEC_ERROR_LIBRARY_FAILURE, 0);
+    return SECFailure;
+  }
+  // NSS ignores the first argument to CERT_ChangeCertTrust
+  SECStatus srv = CERT_ChangeCertTrust(nullptr, cert.get(), &trust);
+  if (srv == SECSuccess || PR_GetError() != SEC_ERROR_TOKEN_NOT_LOGGED_IN) {
+    return srv;
+  }
+  if (cert->slot) {
+    // If this certificate is on an external PKCS#11 token, we have to
+    // authenticate to that token.
+    srv = PK11_Authenticate(cert->slot, PR_TRUE, ctx);
+  } else {
+    // Otherwise, the certificate is on the internal module.
+    UniquePK11SlotInfo internalSlot(PK11_GetInternalKeySlot());
+    srv = PK11_Authenticate(internalSlot.get(), PR_TRUE, ctx);
+  }
+  if (srv != SECSuccess) {
+    return srv;
+  }
+  return CERT_ChangeCertTrust(nullptr, cert.get(), &trust);
+}
+
+static nsresult ImportCertsIntoPermanentStorage(
+    const UniqueCERTCertList& certChain) {
+  bool encounteredFailure = false;
+  PRErrorCode savedErrorCode = 0;
+  UniquePK11SlotInfo slot(PK11_GetInternalKeySlot());
+  for (CERTCertListNode* chainNode = CERT_LIST_HEAD(certChain);
+       !CERT_LIST_END(chainNode, certChain);
+       chainNode = CERT_LIST_NEXT(chainNode)) {
+    UniquePORTString nickname(CERT_MakeCANickname(chainNode->cert));
+    SECStatus srv = PK11_ImportCert(slot.get(), chainNode->cert,
+                                    CK_INVALID_HANDLE, nickname.get(),
+                                    false);  // this parameter is ignored by NSS
+    if (srv != SECSuccess) {
+      encounteredFailure = true;
+      savedErrorCode = PR_GetError();
+    }
+  }
+
+  if (encounteredFailure) {
+    return GetXPCOMFromNSSError(savedErrorCode);
+  }
+
+  return NS_OK;
+}
+
+nsresult nsNSSCertificateDB::handleCACertDownload(NotNull<nsIArray*> x509Certs,
+                                                  nsIInterfaceRequestor* ctx) {
+  // First thing we have to do is figure out which certificate we're
+  // gonna present to the user.  The CA may have sent down a list of
+  // certs which may or may not be a chained list of certs.  Until
+  // the day we can design some solid UI for the general case, we'll
+  // code to the > 90% case.  That case is where a CA sends down a
+  // list that is a hierarchy whose root is either the first or
+  // the last cert.  What we're gonna do is compare the first
+  // 2 entries, if the second was signed by the first, we assume
+  // the root cert is the first cert and display it.  Otherwise,
+  // we compare the last 2 entries, if the second to last cert was
+  // signed by the last cert, then we assume the last cert is the
+  // root and display it.
+
+  uint32_t numCerts;
+
+  x509Certs->GetLength(&numCerts);
+
+  if (numCerts == 0) return NS_OK;  // Nothing to import, so nothing to do.
+
+  nsCOMPtr<nsIX509Cert> certToShow;
+  uint32_t selCertIndex;
+  if (numCerts == 1) {
+    // There's only one cert, so let's show it.
+    selCertIndex = 0;
+    certToShow = do_QueryElementAt(x509Certs, selCertIndex);
+  } else {
+    nsCOMPtr<nsIX509Cert> cert0;    // first cert
+    nsCOMPtr<nsIX509Cert> cert1;    // second cert
+    nsCOMPtr<nsIX509Cert> certn_2;  // second to last cert
+    nsCOMPtr<nsIX509Cert> certn_1;  // last cert
+
+    cert0 = do_QueryElementAt(x509Certs, 0);
+    cert1 = do_QueryElementAt(x509Certs, 1);
+    certn_2 = do_QueryElementAt(x509Certs, numCerts - 2);
+    certn_1 = do_QueryElementAt(x509Certs, numCerts - 1);
+
+    nsAutoString cert0SubjectName;
+    nsAutoString cert1IssuerName;
+    nsAutoString certn_2IssuerName;
+    nsAutoString certn_1SubjectName;
+
+    cert0->GetSubjectName(cert0SubjectName);
+    cert1->GetIssuerName(cert1IssuerName);
+    certn_2->GetIssuerName(certn_2IssuerName);
+    certn_1->GetSubjectName(certn_1SubjectName);
+
+    if (cert1IssuerName.Equals(cert0SubjectName)) {
+      // In this case, the first cert in the list signed the second,
+      // so the first cert is the root.  Let's display it.
+      selCertIndex = 0;
+      certToShow = cert0;
+    } else if (certn_2IssuerName.Equals(certn_1SubjectName)) {
+      // In this case the last cert has signed the second to last cert.
+      // The last cert is the root, so let's display it.
+      selCertIndex = numCerts - 1;
+      certToShow = certn_1;
+    } else {
+      // It's not a chain, so let's just show the first one in the
+      // downloaded list.
+      selCertIndex = 0;
+      certToShow = cert0;
+    }
+  }
+
+  if (!certToShow) return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsICertificateDialogs> dialogs;
+  nsresult rv = ::getNSSDialogs(getter_AddRefs(dialogs),
+                                NS_GET_IID(nsICertificateDialogs),
+                                NS_CERTIFICATEDIALOGS_CONTRACTID);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  UniqueCERTCertificate tmpCert(certToShow->GetCert());
+  if (!tmpCert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (!CERT_IsCACert(tmpCert.get(), nullptr)) {
+    DisplayCertificateAlert(ctx, "NotACACert", certToShow);
+    return NS_ERROR_FAILURE;
+  }
+
+  if (tmpCert->isperm) {
+    DisplayCertificateAlert(ctx, "CaCertExists", certToShow);
+    return NS_ERROR_FAILURE;
+  }
+
+  uint32_t trustBits;
+  bool allows;
+  rv = dialogs->ConfirmDownloadCACert(ctx, certToShow, &trustBits, &allows);
+  if (NS_FAILED(rv)) return rv;
+
+  if (!allows) return NS_ERROR_NOT_AVAILABLE;
+
+  MOZ_LOG(gPIPNSSLog, LogLevel::Debug, ("trust is %d\n", trustBits));
+  UniquePORTString nickname(CERT_MakeCANickname(tmpCert.get()));
+
+  MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+          ("Created nick \"%s\"\n", nickname.get()));
+
+  nsNSSCertTrust trust;
+  trust.SetValidCA();
+  trust.AddCATrust(!!(trustBits & nsIX509CertDB::TRUSTED_SSL),
+                   !!(trustBits & nsIX509CertDB::TRUSTED_EMAIL));
+
+  UniquePK11SlotInfo slot(PK11_GetInternalKeySlot());
+  SECStatus srv = PK11_ImportCert(slot.get(), tmpCert.get(), CK_INVALID_HANDLE,
+                                  nickname.get(),
+                                  false);  // this parameter is ignored by NSS
+  if (srv != SECSuccess) {
+    return MapSECStatus(srv);
+  }
+  srv =
+      ChangeCertTrustWithPossibleAuthentication(tmpCert, trust.GetTrust(), ctx);
+  if (srv != SECSuccess) {
+    return MapSECStatus(srv);
+  }
+
+  // Import additional delivered certificates that can be verified.
+
+  // build a CertList for filtering
+  UniqueCERTCertList certList(CERT_NewCertList());
+  if (!certList) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // get all remaining certs into temp store
+
+  for (uint32_t i = 0; i < numCerts; i++) {
+    if (i == selCertIndex) {
+      // we already processed that one
+      continue;
+    }
+
+    nsCOMPtr<nsIX509Cert> remainingCert = do_QueryElementAt(x509Certs, i);
+    if (!remainingCert) {
+      continue;
+    }
+
+    UniqueCERTCertificate tmpCert2(remainingCert->GetCert());
+    if (!tmpCert2) {
+      continue;  // Let's try to import the rest of 'em
+    }
+
+    if (CERT_AddCertToListTail(certList.get(), tmpCert2.get()) != SECSuccess) {
+      continue;
+    }
+
+    Unused << tmpCert2.release();
+  }
+
+  return ImportCertsIntoPermanentStorage(certList);
+}
+
+nsresult nsNSSCertificateDB::ConstructCertArrayFromUniqueCertList(
+    const UniqueCERTCertList& aCertListIn,
+    nsTArray<RefPtr<nsIX509Cert>>& aCertListOut) {
+  if (!aCertListIn.get()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  for (CERTCertListNode* node = CERT_LIST_HEAD(aCertListIn.get());
+       !CERT_LIST_END(node, aCertListIn.get()); node = CERT_LIST_NEXT(node)) {
+    RefPtr<nsIX509Cert> cert = new nsNSSCertificate(node->cert);
+    aCertListOut.AppendElement(cert);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ImportCertificates(uint8_t* data, uint32_t length,
+                                       uint32_t type,
+                                       nsIInterfaceRequestor* ctx) {
+  // We currently only handle CA certificates.
+  if (type != nsIX509Cert::CA_CERT) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsTArray<nsTArray<uint8_t>> certsArray;
+  nsresult rv = getCertsFromPackage(certsArray, data, length);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsIMutableArray> array = nsArrayBase::Create();
+  if (!array) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // Now let's create some certs to work with
+  for (nsTArray<uint8_t>& certDER : certsArray) {
+    nsCOMPtr<nsIX509Cert> cert = new nsNSSCertificate(std::move(certDER));
+    nsresult rv = array->AppendElement(cert);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+  }
+
+  return handleCACertDownload(WrapNotNull(array), ctx);
+}
+
+/**
+ * Decodes a given array of DER-encoded certificates into temporary storage.
+ *
+ * @param certs
+ *        Array in which the decoded certificates are stored as arrays of
+ *        unsigned chars.
+ * @param temporaryCerts
+ *        List of decoded certificates.
+ */
+static nsresult ImportCertsIntoTempStorage(
+    nsTArray<nsTArray<uint8_t>>& certs,
+    /*out*/ const UniqueCERTCertList& temporaryCerts) {
+  NS_ENSURE_ARG_POINTER(temporaryCerts);
+
+  for (nsTArray<uint8_t>& certDER : certs) {
+    CERTCertificate* certificate;
+    SECItem certItem;
+    certItem.len = certDER.Length();
+    certItem.data = certDER.Elements();
+    certificate = CERT_NewTempCertificate(CERT_GetDefaultCertDB(), &certItem,
+                                          nullptr, false, true);
+
+    UniqueCERTCertificate cert(certificate);
+    if (!cert) {
+      continue;
+    }
+
+    if (CERT_AddCertToListTail(temporaryCerts.get(), cert.get()) ==
+        SECSuccess) {
+      Unused << cert.release();
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ImportEmailCertificate(uint8_t* data, uint32_t length,
+                                           nsIInterfaceRequestor* ctx) {
+  nsTArray<nsTArray<uint8_t>> certsArray;
+
+  nsresult rv = getCertsFromPackage(certsArray, data, length);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  UniqueCERTCertList temporaryCerts(CERT_NewCertList());
+  if (!temporaryCerts) {
+    return NS_ERROR_FAILURE;
+  }
+
+  rv = ImportCertsIntoTempStorage(certsArray, temporaryCerts);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  return ImportCertsIntoPermanentStorage(temporaryCerts);
+}
+
+nsresult nsNSSCertificateDB::ImportCACerts(nsTArray<nsTArray<uint8_t>>& caCerts,
+                                           nsIInterfaceRequestor* ctx) {
+  UniqueCERTCertList temporaryCerts(CERT_NewCertList());
+  if (!temporaryCerts) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsresult rv = ImportCertsIntoTempStorage(caCerts, temporaryCerts);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  return ImportCertsIntoPermanentStorage(temporaryCerts);
+}
+
+void nsNSSCertificateDB::DisplayCertificateAlert(nsIInterfaceRequestor* ctx,
+                                                 const char* stringID,
+                                                 nsIX509Cert* certToShow) {
+  if (!NS_IsMainThread()) {
+    NS_ERROR(
+        "nsNSSCertificateDB::DisplayCertificateAlert called off the main "
+        "thread");
+    return;
+  }
+
+  nsCOMPtr<nsIInterfaceRequestor> my_ctx = ctx;
+  if (!my_ctx) {
+    my_ctx = new PipUIContext();
+  }
+
+  // This shall be replaced by embedding ovverridable prompts
+  // as discussed in bug 310446, and should make use of certToShow.
+
+  nsAutoString tmpMessage;
+  GetPIPNSSBundleString(stringID, tmpMessage);
+  nsCOMPtr<nsIPrompt> prompt(do_GetInterface(my_ctx));
+  if (!prompt) {
+    return;
+  }
+
+  prompt->Alert(nullptr, tmpMessage.get());
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ImportUserCertificate(uint8_t* data, uint32_t length,
+                                          nsIInterfaceRequestor* ctx) {
+  if (!NS_IsMainThread()) {
+    NS_ERROR(
+        "nsNSSCertificateDB::ImportUserCertificate called off the main thread");
+    return NS_ERROR_NOT_SAME_THREAD;
+  }
+
+  nsTArray<nsTArray<uint8_t>> certsArray;
+
+  nsresult rv = getCertsFromPackage(certsArray, data, length);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  SECItem certItem;
+
+  if (certsArray.IsEmpty()) {
+    return NS_OK;
+  }
+
+  certItem.len = certsArray.ElementAt(0).Length();
+  certItem.data = certsArray.ElementAt(0).Elements();
+
+  UniqueCERTCertificate cert(CERT_NewTempCertificate(
+      CERT_GetDefaultCertDB(), &certItem, nullptr, false, true));
+  if (!cert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  UniquePK11SlotInfo slot(PK11_KeyForCertExists(cert.get(), nullptr, ctx));
+  if (!slot) {
+    nsCOMPtr<nsIX509Cert> certToShow = new nsNSSCertificate(cert.get());
+    DisplayCertificateAlert(ctx, "UserCertIgnoredNoPrivateKey", certToShow);
+    return NS_ERROR_FAILURE;
+  }
+  slot = nullptr;
+
+  /* pick a nickname for the cert */
+  nsAutoCString nickname;
+  if (cert->nickname) {
+    nickname = cert->nickname;
+  } else {
+    get_default_nickname(cert.get(), ctx, nickname);
+  }
+
+  /* user wants to import the cert */
+  slot.reset(PK11_ImportCertForKey(cert.get(), nickname.get(), ctx));
+  if (!slot) {
+    return NS_ERROR_FAILURE;
+  }
+  slot = nullptr;
+
+  {
+    nsCOMPtr<nsIX509Cert> certToShow = new nsNSSCertificate(cert.get());
+    DisplayCertificateAlert(ctx, "UserCertImported", certToShow);
+  }
+
+  rv = NS_OK;
+  if (!certsArray.IsEmpty()) {
+    certsArray.RemoveElementAt(0);
+    rv = ImportCACerts(certsArray, ctx);
+  }
+
+  nsCOMPtr<nsIObserverService> observerService =
+      mozilla::services::GetObserverService();
+  if (observerService) {
+    observerService->NotifyObservers(nullptr, "psm:user-certificate-added",
+                                     nullptr);
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::DeleteCertificate(nsIX509Cert* aCert) {
+  NS_ENSURE_ARG_POINTER(aCert);
+  UniqueCERTCertificate cert(aCert->GetCert());
+  if (!cert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // Temporary certificates aren't on a slot and will go away when the
+  // nsIX509Cert is destructed.
+  if (cert->slot) {
+    uint32_t certType;
+    nsresult rv = aCert->GetCertType(&certType);
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+    if (certType == nsIX509Cert::USER_CERT) {
+      SECStatus srv = PK11_Authenticate(cert->slot, true, nullptr);
+      if (srv != SECSuccess) {
+        return NS_ERROR_FAILURE;
+      }
+      srv = PK11_DeleteTokenCertAndKey(cert.get(), nullptr);
+      if (srv != SECSuccess) {
+        return NS_ERROR_FAILURE;
+      }
+    } else {
+      // For certificates that can't be deleted (e.g. built-in roots), un-set
+      // all trust bits.
+      nsNSSCertTrust trust(0, 0);
+      SECStatus srv = ChangeCertTrustWithPossibleAuthentication(
+          cert, trust.GetTrust(), nullptr);
+      if (srv != SECSuccess) {
+        return NS_ERROR_FAILURE;
+      }
+      if (!PK11_IsReadOnly(cert->slot)) {
+        srv = SEC_DeletePermCertificate(cert.get());
+        if (srv != SECSuccess) {
+          return NS_ERROR_FAILURE;
+        }
+      }
+    }
+  }
+
+  nsCOMPtr<nsIObserverService> observerService =
+      mozilla::services::GetObserverService();
+  if (observerService) {
+    observerService->NotifyObservers(nullptr, "psm:user-certificate-deleted",
+                                     nullptr);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::SetCertTrust(nsIX509Cert* cert, uint32_t type,
+                                 uint32_t trusted) {
+  NS_ENSURE_ARG_POINTER(cert);
+  nsNSSCertTrust trust;
+  switch (type) {
+    case nsIX509Cert::CA_CERT:
+      trust.SetValidCA();
+      trust.AddCATrust(!!(trusted & nsIX509CertDB::TRUSTED_SSL),
+                       !!(trusted & nsIX509CertDB::TRUSTED_EMAIL));
+      break;
+    case nsIX509Cert::SERVER_CERT:
+      trust.SetValidPeer();
+      trust.AddPeerTrust(trusted & nsIX509CertDB::TRUSTED_SSL, false);
+      break;
+    case nsIX509Cert::EMAIL_CERT:
+      trust.SetValidPeer();
+      trust.AddPeerTrust(false, !!(trusted & nsIX509CertDB::TRUSTED_EMAIL));
+      break;
+    default:
+      // Ignore any other type of certificate (including invalid types).
+      return NS_OK;
+  }
+
+  UniqueCERTCertificate nsscert(cert->GetCert());
+  SECStatus srv = ChangeCertTrustWithPossibleAuthentication(
+      nsscert, trust.GetTrust(), nullptr);
+  return MapSECStatus(srv);
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::IsCertTrusted(nsIX509Cert* cert, uint32_t certType,
+                                  uint32_t trustType, bool* _isTrusted) {
+  NS_ENSURE_ARG_POINTER(_isTrusted);
+  *_isTrusted = false;
+
+  nsresult rv = BlockUntilLoadableCertsLoaded();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  SECStatus srv;
+  UniqueCERTCertificate nsscert(cert->GetCert());
+  CERTCertTrust nsstrust;
+  srv = CERT_GetCertTrust(nsscert.get(), &nsstrust);
+  if (srv != SECSuccess) {
+    // CERT_GetCertTrust returns SECFailure if given a temporary cert that
+    // doesn't have any trust information yet. This isn't an error.
+    return NS_OK;
+  }
+
+  nsNSSCertTrust trust(&nsstrust);
+  if (certType == nsIX509Cert::CA_CERT) {
+    if (trustType & nsIX509CertDB::TRUSTED_SSL) {
+      *_isTrusted = trust.HasTrustedCA(true, false);
+    } else if (trustType & nsIX509CertDB::TRUSTED_EMAIL) {
+      *_isTrusted = trust.HasTrustedCA(false, true);
+    } else {
+      return NS_ERROR_FAILURE;
+    }
+  } else if (certType == nsIX509Cert::SERVER_CERT) {
+    if (trustType & nsIX509CertDB::TRUSTED_SSL) {
+      *_isTrusted = trust.HasTrustedPeer(true, false);
+    } else if (trustType & nsIX509CertDB::TRUSTED_EMAIL) {
+      *_isTrusted = trust.HasTrustedPeer(false, true);
+    } else {
+      return NS_ERROR_FAILURE;
+    }
+  } else if (certType == nsIX509Cert::EMAIL_CERT) {
+    if (trustType & nsIX509CertDB::TRUSTED_SSL) {
+      *_isTrusted = trust.HasTrustedPeer(true, false);
+    } else if (trustType & nsIX509CertDB::TRUSTED_EMAIL) {
+      *_isTrusted = trust.HasTrustedPeer(false, true);
+    } else {
+      return NS_ERROR_FAILURE;
+    }
+  } /* user: ignore */
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ImportCertsFromFile(nsIFile* aFile, uint32_t aType) {
+  NS_ENSURE_ARG(aFile);
+  switch (aType) {
+    case nsIX509Cert::CA_CERT:
+    case nsIX509Cert::EMAIL_CERT:
+      // good
+      break;
+
+    default:
+      // not supported (yet)
+      return NS_ERROR_FAILURE;
+  }
+
+  PRFileDesc* fd = nullptr;
+  nsresult rv = aFile->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  if (!fd) {
+    return NS_ERROR_FAILURE;
+  }
+
+  PRFileInfo fileInfo;
+  if (PR_GetOpenFileInfo(fd, &fileInfo) != PR_SUCCESS) {
+    return NS_ERROR_FAILURE;
+  }
+
+  auto buf = MakeUnique<unsigned char[]>(fileInfo.size);
+  int32_t bytesObtained = PR_Read(fd, buf.get(), fileInfo.size);
+  PR_Close(fd);
+
+  if (bytesObtained != fileInfo.size) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIInterfaceRequestor> cxt = new PipUIContext();
+
+  switch (aType) {
+    case nsIX509Cert::CA_CERT:
+      return ImportCertificates(buf.get(), bytesObtained, aType, cxt);
+    case nsIX509Cert::EMAIL_CERT:
+      return ImportEmailCertificate(buf.get(), bytesObtained, cxt);
+    default:
+      MOZ_ASSERT(false, "Unsupported type should have been filtered out");
+      break;
+  }
+
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ImportPKCS12File(nsIFile* aFile, const nsAString& aPassword,
+                                     uint32_t* aError) {
+  if (!NS_IsMainThread()) {
+    return NS_ERROR_NOT_SAME_THREAD;
+  }
+  nsresult rv = BlockUntilLoadableCertsLoaded();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  NS_ENSURE_ARG(aFile);
+  nsPKCS12Blob blob;
+  rv = blob.ImportFromFile(aFile, aPassword, *aError);
+  nsCOMPtr<nsIObserverService> observerService =
+      mozilla::services::GetObserverService();
+  if (NS_SUCCEEDED(rv) && observerService) {
+    observerService->NotifyObservers(nullptr, "psm:user-certificate-added",
+                                     nullptr);
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ExportPKCS12File(
+    nsIFile* aFile, const nsTArray<RefPtr<nsIX509Cert>>& aCerts,
+    const nsAString& aPassword, uint32_t* aError) {
+  if (!NS_IsMainThread()) {
+    return NS_ERROR_NOT_SAME_THREAD;
+  }
+  nsresult rv = BlockUntilLoadableCertsLoaded();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  NS_ENSURE_ARG(aFile);
+  if (aCerts.IsEmpty()) {
+    return NS_OK;
+  }
+  nsPKCS12Blob blob;
+  return blob.ExportToFile(aFile, aCerts, aPassword, *aError);
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ConstructX509FromBase64(const nsACString& base64,
+                                            /*out*/ nsIX509Cert** _retval) {
+  if (!_retval) {
+    return NS_ERROR_INVALID_POINTER;
+  }
+
+  // Base64Decode() doesn't consider a zero length input as an error, and just
+  // returns the empty string. We don't want this behavior, so the below check
+  // catches this case.
+  if (base64.Length() < 1) {
+    return NS_ERROR_ILLEGAL_VALUE;
+  }
+
+  nsAutoCString certDER;
+  nsresult rv = Base64Decode(base64, certDER);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  return ConstructX509FromSpan(AsBytes(Span(certDER)), _retval);
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ConstructX509(const nsTArray<uint8_t>& certDER,
+                                  nsIX509Cert** _retval) {
+  return ConstructX509FromSpan(Span(certDER.Elements(), certDER.Length()),
+                               _retval);
+}
+
+nsresult nsNSSCertificateDB::ConstructX509FromSpan(
+    Span<const uint8_t> aInputSpan, nsIX509Cert** _retval) {
+  if (NS_WARN_IF(!_retval)) {
+    return NS_ERROR_INVALID_POINTER;
+  }
+
+  if (aInputSpan.Length() > std::numeric_limits<unsigned int>::max()) {
+    return NS_ERROR_ILLEGAL_VALUE;
+  }
+
+  SECItem certData;
+  certData.type = siDERCertBuffer;
+  certData.data = const_cast<unsigned char*>(
+      reinterpret_cast<const unsigned char*>(aInputSpan.Elements()));
+  certData.len = aInputSpan.Length();
+
+  UniqueCERTCertificate cert(CERT_NewTempCertificate(
+      CERT_GetDefaultCertDB(), &certData, nullptr, false, true));
+  if (!cert)
+    return (PORT_GetError() == SEC_ERROR_NO_MEMORY) ? NS_ERROR_OUT_OF_MEMORY
+                                                    : NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIX509Cert> nssCert = new nsNSSCertificate(cert.get());
+  nssCert.forget(_retval);
+  return NS_OK;
+}
+
+void nsNSSCertificateDB::get_default_nickname(CERTCertificate* cert,
+                                              nsIInterfaceRequestor* ctx,
+                                              nsCString& nickname) {
+  nickname.Truncate();
+
+  CK_OBJECT_HANDLE keyHandle;
+
+  if (NS_FAILED(BlockUntilLoadableCertsLoaded())) {
+    return;
+  }
+
+  CERTCertDBHandle* defaultcertdb = CERT_GetDefaultCertDB();
+  nsAutoCString username;
+  UniquePORTString tempCN(CERT_GetCommonName(&cert->subject));
+  if (tempCN) {
+    username = tempCN.get();
+  }
+
+  nsAutoCString caname;
+  UniquePORTString tempIssuerOrg(CERT_GetOrgName(&cert->issuer));
+  if (tempIssuerOrg) {
+    caname = tempIssuerOrg.get();
+  }
+
+  nsAutoString tmpNickFmt;
+  GetPIPNSSBundleString("nick_template", tmpNickFmt);
+  NS_ConvertUTF16toUTF8 nickFmt(tmpNickFmt);
+
+  nsAutoCString baseName;
+  baseName.AppendPrintf(nickFmt.get(), username.get(), caname.get());
+  if (baseName.IsEmpty()) {
+    return;
+  }
+
+  nickname = baseName;
+
+  /*
+   * We need to see if the private key exists on a token, if it does
+   * then we need to check for nicknames that already exist on the smart
+   * card.
+   */
+  UniquePK11SlotInfo slot(PK11_KeyForCertExists(cert, &keyHandle, ctx));
+  if (!slot) return;
+
+  if (!PK11_IsInternal(slot.get())) {
+    nsAutoCString tmp;
+    tmp.AppendPrintf("%s:%s", PK11_GetTokenName(slot.get()), baseName.get());
+    if (tmp.IsEmpty()) {
+      nickname.Truncate();
+      return;
+    }
+    baseName = tmp;
+    nickname = baseName;
+  }
+
+  int count = 1;
+  while (true) {
+    if (count > 1) {
+      nsAutoCString tmp;
+      tmp.AppendPrintf("%s #%d", baseName.get(), count);
+      if (tmp.IsEmpty()) {
+        nickname.Truncate();
+        return;
+      }
+      nickname = tmp;
+    }
+
+    UniqueCERTCertificate dummycert;
+
+    if (PK11_IsInternal(slot.get())) {
+      /* look up the nickname to make sure it isn't in use already */
+      dummycert.reset(CERT_FindCertByNickname(defaultcertdb, nickname.get()));
+    } else {
+      // Check the cert against others that already live on the smart card.
+      dummycert.reset(PK11_FindCertFromNickname(nickname.get(), ctx));
+      if (dummycert) {
+        // Make sure the subject names are different.
+        if (CERT_CompareName(&cert->subject, &dummycert->subject) == SECEqual) {
+          /*
+           * There is another certificate with the same nickname and
+           * the same subject name on the smart card, so let's use this
+           * nickname.
+           */
+          dummycert = nullptr;
+        }
+      }
+    }
+    if (!dummycert) {
+      break;
+    }
+    count++;
+  }
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::AddCertFromBase64(const nsACString& aBase64,
+                                      const nsACString& aTrust,
+                                      nsIX509Cert** addedCertificate) {
+  // Base64Decode() doesn't consider a zero length input as an error, and just
+  // returns the empty string. We don't want this behavior, so the below check
+  // catches this case.
+  if (aBase64.Length() < 1) {
+    return NS_ERROR_ILLEGAL_VALUE;
+  }
+
+  nsAutoCString aCertDER;
+  nsresult rv = Base64Decode(aBase64, aCertDER);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+  return AddCert(aCertDER, aTrust, addedCertificate);
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::AddCert(const nsACString& aCertDER,
+                            const nsACString& aTrust,
+                            nsIX509Cert** addedCertificate) {
+  MOZ_ASSERT(addedCertificate);
+  if (!addedCertificate) {
+    return NS_ERROR_INVALID_ARG;
+  }
+  *addedCertificate = nullptr;
+
+  nsNSSCertTrust trust;
+  if (CERT_DecodeTrustString(&trust.GetTrust(),
+                             PromiseFlatCString(aTrust).get()) != SECSuccess) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIX509Cert> newCert;
+  nsresult rv =
+      ConstructX509FromSpan(AsBytes(Span(aCertDER)), getter_AddRefs(newCert));
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  UniqueCERTCertificate tmpCert(newCert->GetCert());
+  if (!tmpCert) {
+    return NS_ERROR_FAILURE;
+  }
+
+  // If there's already a certificate that matches this one in the database, we
+  // still want to set its trust to the given value.
+  if (tmpCert->isperm) {
+    rv = SetCertTrustFromString(newCert, aTrust);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    newCert.forget(addedCertificate);
+    return NS_OK;
+  }
+
+  UniquePORTString nickname(CERT_MakeCANickname(tmpCert.get()));
+
+  MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+          ("Created nick \"%s\"\n", nickname.get()));
+
+  UniquePK11SlotInfo slot(PK11_GetInternalKeySlot());
+  SECStatus srv = PK11_ImportCert(slot.get(), tmpCert.get(), CK_INVALID_HANDLE,
+                                  nickname.get(),
+                                  false);  // this parameter is ignored by NSS
+  if (srv != SECSuccess) {
+    return MapSECStatus(srv);
+  }
+  srv = ChangeCertTrustWithPossibleAuthentication(tmpCert, trust.GetTrust(),
+                                                  nullptr);
+  if (srv != SECSuccess) {
+    return MapSECStatus(srv);
+  }
+  newCert.forget(addedCertificate);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::SetCertTrustFromString(nsIX509Cert* cert,
+                                           const nsACString& trustString) {
+  NS_ENSURE_ARG(cert);
+
+  CERTCertTrust trust;
+  SECStatus srv =
+      CERT_DecodeTrustString(&trust, PromiseFlatCString(trustString).get());
+  if (srv != SECSuccess) {
+    return MapSECStatus(srv);
+  }
+  UniqueCERTCertificate nssCert(cert->GetCert());
+
+  srv = ChangeCertTrustWithPossibleAuthentication(nssCert, trust, nullptr);
+  return MapSECStatus(srv);
+}
+
+NS_IMETHODIMP nsNSSCertificateDB::AsPKCS7Blob(
+    const nsTArray<RefPtr<nsIX509Cert>>& certList, nsACString& _retval) {
+  if (certList.IsEmpty()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  UniqueNSSCMSMessage cmsg(NSS_CMSMessage_Create(nullptr));
+  if (!cmsg) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+            ("nsNSSCertificateDB::AsPKCS7Blob - can't create CMS message"));
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  UniqueNSSCMSSignedData sigd(nullptr);
+  for (const auto& cert : certList) {
+    // We need an owning handle when calling nsIX509Cert::GetCert().
+    UniqueCERTCertificate nssCert(cert->GetCert());
+    if (!sigd) {
+      sigd.reset(
+          NSS_CMSSignedData_CreateCertsOnly(cmsg.get(), nssCert.get(), false));
+      if (!sigd) {
+        MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+                ("nsNSSCertificateDB::AsPKCS7Blob - can't create SignedData"));
+        return NS_ERROR_FAILURE;
+      }
+    } else if (NSS_CMSSignedData_AddCertificate(sigd.get(), nssCert.get()) !=
+               SECSuccess) {
+      MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+              ("nsNSSCertificateDB::AsPKCS7Blob - can't add cert"));
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  NSSCMSContentInfo* cinfo = NSS_CMSMessage_GetContentInfo(cmsg.get());
+  if (NSS_CMSContentInfo_SetContent_SignedData(cmsg.get(), cinfo, sigd.get()) !=
+      SECSuccess) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+            ("nsNSSCertificateDB::AsPKCS7Blob - can't attach SignedData"));
+    return NS_ERROR_FAILURE;
+  }
+  // cmsg owns sigd now.
+  Unused << sigd.release();
+
+  UniquePLArenaPool arena(PORT_NewArena(1024));
+  if (!arena) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+            ("nsNSSCertificateDB::AsPKCS7Blob - out of memory"));
+    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,
+            ("nsNSSCertificateDB::AsPKCS7Blob - can't create encoder"));
+    return NS_ERROR_FAILURE;
+  }
+
+  if (NSS_CMSEncoder_Finish(ecx) != SECSuccess) {
+    MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
+            ("nsNSSCertificateDB::AsPKCS7Blob - failed to add encoded data"));
+    return NS_ERROR_FAILURE;
+  }
+
+  _retval.Assign(nsDependentCSubstring(
+      reinterpret_cast<const char*>(certP7.data), certP7.len));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::GetCerts(nsTArray<RefPtr<nsIX509Cert>>& _retval) {
+  nsresult rv = BlockUntilLoadableCertsLoaded();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  rv = CheckForSmartCardChanges();
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  nsCOMPtr<nsIInterfaceRequestor> ctx = new PipUIContext();
+  UniqueCERTCertList certList(PK11_ListCerts(PK11CertListUnique, ctx));
+  if (!certList) {
+    return NS_ERROR_FAILURE;
+  }
+  return nsNSSCertificateDB::ConstructCertArrayFromUniqueCertList(certList,
+                                                                  _retval);
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::AsyncHasThirdPartyRoots(nsIAsyncBoolCallback* aCallback) {
+  NS_ENSURE_ARG_POINTER(aCallback);
+  nsMainThreadPtrHandle<nsIAsyncBoolCallback> callback(
+      new nsMainThreadPtrHolder<nsIAsyncBoolCallback>("AsyncHasThirdPartyRoots",
+                                                      aCallback));
+
+  return NS_DispatchBackgroundTask(
+      NS_NewRunnableFunction(
+          "nsNSSCertificateDB::AsyncHasThirdPartyRoots",
+          [cb = std::move(callback), self = RefPtr{this}] {
+            bool hasThirdPartyRoots = [self]() -> bool {
+              nsTArray<RefPtr<nsIX509Cert>> certs;
+              nsresult rv = self->GetCerts(certs);
+              if (NS_FAILED(rv)) {
+                return false;
+              }
+
+              for (const auto& cert : certs) {
+                bool isTrusted = false;
+                nsresult rv =
+                    self->IsCertTrusted(cert, nsIX509Cert::CA_CERT,
+                                        nsIX509CertDB::TRUSTED_SSL, &isTrusted);
+                if (NS_FAILED(rv)) {
+                  return false;
+                }
+
+                if (!isTrusted) {
+                  continue;
+                }
+
+                bool isBuiltInRoot = false;
+                rv = cert->GetIsBuiltInRoot(&isBuiltInRoot);
+                if (NS_FAILED(rv)) {
+                  return false;
+                }
+
+                if (!isBuiltInRoot) {
+                  return true;
+                }
+              }
+
+              return false;
+            }();
+
+            NS_DispatchToMainThread(NS_NewRunnableFunction(
+                "nsNSSCertificateDB::AsyncHasThirdPartyRoots callback",
+                [cb, hasThirdPartyRoots]() {
+                  cb->OnResult(hasThirdPartyRoots);
+                }));
+          }),
+      NS_DISPATCH_EVENT_MAY_BLOCK);
+}
+
+nsresult VerifyCertAtTime(nsIX509Cert* aCert,
+                          int64_t /*SECCertificateUsage*/ aUsage,
+                          uint32_t aFlags, const nsACString& aHostname,
+                          mozilla::pkix::Time aTime,
+                          nsTArray<RefPtr<nsIX509Cert>>& aVerifiedChain,
+                          bool* aHasEVPolicy,
+                          int32_t* /*PRErrorCode*/ _retval) {
+  NS_ENSURE_ARG_POINTER(aCert);
+  NS_ENSURE_ARG_POINTER(aHasEVPolicy);
+  NS_ENSURE_ARG_POINTER(_retval);
+
+  if (!aVerifiedChain.IsEmpty()) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  *aHasEVPolicy = false;
+  *_retval = PR_UNKNOWN_ERROR;
+
+  RefPtr<SharedCertVerifier> certVerifier(GetDefaultCertVerifier());
+  NS_ENSURE_TRUE(certVerifier, NS_ERROR_FAILURE);
+
+  nsTArray<nsTArray<uint8_t>> resultChain;
+  EVStatus evStatus;
+  mozilla::pkix::Result result;
+
+  nsTArray<uint8_t> certBytes;
+  nsresult nsrv = aCert->GetRawDER(certBytes);
+  if (NS_FAILED(nsrv)) {
+    return nsrv;
+  }
+
+  if (!aHostname.IsVoid() && aUsage == certificateUsageSSLServer) {
+    result =
+        certVerifier->VerifySSLServerCert(certBytes, aTime,
+                                          nullptr,  // Assume no context
+                                          aHostname, resultChain, aFlags,
+                                          Nothing(),  // extraCertificates
+                                          Nothing(),  // stapledOCSPResponse
+                                          Nothing(),  // sctsFromTLSExtension
+                                          Nothing(),  // dcInfo
+                                          OriginAttributes(), &evStatus);
+  } else {
+    const nsCString& flatHostname = PromiseFlatCString(aHostname);
+    result = certVerifier->VerifyCert(
+        certBytes, aUsage, aTime,
+        nullptr,  // Assume no context
+        aHostname.IsVoid() ? nullptr : flatHostname.get(), resultChain, aFlags,
+        Nothing(),  // extraCertificates
+        Nothing(),  // stapledOCSPResponse
+        Nothing(),  // sctsFromTLSExtension
+        OriginAttributes(), &evStatus);
+  }
+
+  if (result == mozilla::pkix::Success) {
+    for (auto& certDER : resultChain) {
+      RefPtr<nsIX509Cert> cert = new nsNSSCertificate(std::move(certDER));
+      aVerifiedChain.AppendElement(cert);
+    }
+
+    if (evStatus == EVStatus::EV) {
+      *aHasEVPolicy = true;
+    }
+  }
+
+  *_retval = mozilla::pkix::MapResultToPRErrorCode(result);
+
+  return NS_OK;
+}
+
+class VerifyCertAtTimeTask final : public CryptoTask {
+ public:
+  VerifyCertAtTimeTask(nsIX509Cert* aCert, int64_t aUsage, uint32_t aFlags,
+                       const nsACString& aHostname, uint64_t aTime,
+                       nsICertVerificationCallback* aCallback)
+      : mCert(aCert),
+        mUsage(aUsage),
+        mFlags(aFlags),
+        mHostname(aHostname),
+        mTime(aTime),
+        mCallback(new nsMainThreadPtrHolder<nsICertVerificationCallback>(
+            "nsICertVerificationCallback", aCallback)),
+        mPRErrorCode(SEC_ERROR_LIBRARY_FAILURE),
+        mHasEVPolicy(false) {}
+
+ private:
+  virtual nsresult CalculateResult() override {
+    nsCOMPtr<nsIX509CertDB> certDB = do_GetService(NS_X509CERTDB_CONTRACTID);
+    if (!certDB) {
+      return NS_ERROR_FAILURE;
+    }
+    return VerifyCertAtTime(mCert, mUsage, mFlags, mHostname,
+                            mozilla::pkix::TimeFromEpochInSeconds(mTime),
+                            mVerifiedCertList, &mHasEVPolicy, &mPRErrorCode);
+  }
+
+  virtual void CallCallback(nsresult rv) override {
+    if (NS_FAILED(rv)) {
+      nsTArray<RefPtr<nsIX509Cert>> tmp;
+      Unused << mCallback->VerifyCertFinished(SEC_ERROR_LIBRARY_FAILURE, tmp,
+                                              false);
+    } else {
+      Unused << mCallback->VerifyCertFinished(mPRErrorCode, mVerifiedCertList,
+                                              mHasEVPolicy);
+    }
+  }
+
+  nsCOMPtr<nsIX509Cert> mCert;
+  int64_t mUsage;
+  uint32_t mFlags;
+  nsCString mHostname;
+  uint64_t mTime;
+  nsMainThreadPtrHandle<nsICertVerificationCallback> mCallback;
+  int32_t mPRErrorCode;
+  nsTArray<RefPtr<nsIX509Cert>> mVerifiedCertList;
+  bool mHasEVPolicy;
+};
+
+NS_IMETHODIMP
+nsNSSCertificateDB::AsyncVerifyCertAtTime(
+    nsIX509Cert* aCert, int64_t /*SECCertificateUsage*/ aUsage, uint32_t aFlags,
+    const nsACString& aHostname, uint64_t aTime,
+    nsICertVerificationCallback* aCallback) {
+  RefPtr<VerifyCertAtTimeTask> task(new VerifyCertAtTimeTask(
+      aCert, aUsage, aFlags, aHostname, aTime, aCallback));
+  return task->Dispatch();
+}
+
+NS_IMETHODIMP
+nsNSSCertificateDB::ClearOCSPCache() {
+  RefPtr<SharedCertVerifier> certVerifier(GetDefaultCertVerifier());
+  NS_ENSURE_TRUE(certVerifier, NS_ERROR_FAILURE);
+  certVerifier->ClearOCSPCache();
+  return NS_OK;
+}