/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=4 et sw=4 tw=80: */
/* 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 <string.h>

#include "nss.h"
#include "pk11pub.h"
#include "prenv.h"
#include "prerror.h"
#include "secmod.h"

#include "gtest/gtest.h"
#include "nss_scoped_ptrs.h"
#include "util.h"

namespace nss_test {

// These test certificates were generated using pycert/pykey from
// mozilla-central (https://hg.mozilla.org/mozilla-central/file/ ...
// 9968319230a74eb8c1953444a0e6973c7500a9f8/security/manager/ssl/ ...
// tests/unit/pycert.py).

// issuer:test cert
// subject:test cert
// issuerKey:secp256r1
// subjectKey:secp256r1
// serialNumber:1
const std::vector<uint8_t> kTestCert1DER = {
    0x30, 0x82, 0x01, 0x1D, 0x30, 0x81, 0xC2, 0xA0, 0x03, 0x02, 0x01, 0x02,
    0x02, 0x01, 0x01, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7,
    0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10,
    0x06, 0x03, 0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20,
    0x63, 0x65, 0x72, 0x74, 0x30, 0x22, 0x18, 0x0F, 0x32, 0x30, 0x31, 0x37,
    0x31, 0x31, 0x32, 0x37, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5A, 0x18,
    0x0F, 0x32, 0x30, 0x32, 0x30, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x30, 0x5A, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03,
    0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20, 0x63, 0x65,
    0x72, 0x74, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86, 0x48, 0xCE,
    0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01,
    0x07, 0x03, 0x42, 0x00, 0x04, 0x4F, 0xBF, 0xBB, 0xBB, 0x61, 0xE0, 0xF8,
    0xF9, 0xB1, 0xA6, 0x0A, 0x59, 0xAC, 0x87, 0x04, 0xE2, 0xEC, 0x05, 0x0B,
    0x42, 0x3E, 0x3C, 0xF7, 0x2E, 0x92, 0x3F, 0x2C, 0x4F, 0x79, 0x4B, 0x45,
    0x5C, 0x2A, 0x69, 0xD2, 0x33, 0x45, 0x6C, 0x36, 0xC4, 0x11, 0x9D, 0x07,
    0x06, 0xE0, 0x0E, 0xED, 0xC8, 0xD1, 0x93, 0x90, 0xD7, 0x99, 0x1B, 0x7B,
    0x2D, 0x07, 0xA3, 0x04, 0xEA, 0xA0, 0x4A, 0xA6, 0xC0, 0x30, 0x0D, 0x06,
    0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00,
    0x03, 0x47, 0x00, 0x30, 0x44, 0x02, 0x20, 0x5C, 0x75, 0x51, 0x9F, 0x13,
    0x11, 0x50, 0xCD, 0x5D, 0x8A, 0xDE, 0x20, 0xA3, 0xBC, 0x06, 0x30, 0x91,
    0xFF, 0xB2, 0x73, 0x75, 0x5F, 0x31, 0x64, 0xEC, 0xFD, 0xCB, 0x42, 0x80,
    0x0A, 0x70, 0xE6, 0x02, 0x20, 0x11, 0xFA, 0xA2, 0xCA, 0x06, 0xF3, 0xBC,
    0x5F, 0x8A, 0xCA, 0x17, 0x63, 0x36, 0x87, 0xCF, 0x8D, 0x5C, 0xA0, 0x56,
    0x84, 0x44, 0x61, 0xB2, 0x33, 0x42, 0x07, 0x58, 0x9F, 0x0C, 0x9E, 0x49,
    0x83,
};

// issuer:test cert
// subject:test cert
// issuerKey:secp256r1
// subjectKey:secp256r1
// serialNumber:2
const std::vector<uint8_t> kTestCert2DER = {
    0x30, 0x82, 0x01, 0x1E, 0x30, 0x81, 0xC2, 0xA0, 0x03, 0x02, 0x01, 0x02,
    0x02, 0x01, 0x02, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7,
    0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10,
    0x06, 0x03, 0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20,
    0x63, 0x65, 0x72, 0x74, 0x30, 0x22, 0x18, 0x0F, 0x32, 0x30, 0x31, 0x37,
    0x31, 0x31, 0x32, 0x37, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5A, 0x18,
    0x0F, 0x32, 0x30, 0x32, 0x30, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x30, 0x5A, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03,
    0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20, 0x63, 0x65,
    0x72, 0x74, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86, 0x48, 0xCE,
    0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01,
    0x07, 0x03, 0x42, 0x00, 0x04, 0x4F, 0xBF, 0xBB, 0xBB, 0x61, 0xE0, 0xF8,
    0xF9, 0xB1, 0xA6, 0x0A, 0x59, 0xAC, 0x87, 0x04, 0xE2, 0xEC, 0x05, 0x0B,
    0x42, 0x3E, 0x3C, 0xF7, 0x2E, 0x92, 0x3F, 0x2C, 0x4F, 0x79, 0x4B, 0x45,
    0x5C, 0x2A, 0x69, 0xD2, 0x33, 0x45, 0x6C, 0x36, 0xC4, 0x11, 0x9D, 0x07,
    0x06, 0xE0, 0x0E, 0xED, 0xC8, 0xD1, 0x93, 0x90, 0xD7, 0x99, 0x1B, 0x7B,
    0x2D, 0x07, 0xA3, 0x04, 0xEA, 0xA0, 0x4A, 0xA6, 0xC0, 0x30, 0x0D, 0x06,
    0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00,
    0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x5C, 0x75, 0x51, 0x9F, 0x13,
    0x11, 0x50, 0xCD, 0x5D, 0x8A, 0xDE, 0x20, 0xA3, 0xBC, 0x06, 0x30, 0x91,
    0xFF, 0xB2, 0x73, 0x75, 0x5F, 0x31, 0x64, 0xEC, 0xFD, 0xCB, 0x42, 0x80,
    0x0A, 0x70, 0xE6, 0x02, 0x21, 0x00, 0xF6, 0x5E, 0x42, 0xC7, 0x54, 0x40,
    0x81, 0xE9, 0x4C, 0x16, 0x48, 0xB1, 0x39, 0x0A, 0xA0, 0xE2, 0x8C, 0x23,
    0xAA, 0xC5, 0xBB, 0xAC, 0xEB, 0x9B, 0x15, 0x0B, 0x2F, 0xB7, 0xF5, 0x85,
    0xB2, 0x54,
};

const std::vector<uint8_t> kTestCertSubjectDER = {
    0x30, 0x14, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03,
    0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20, 0x63, 0x65, 0x72, 0x74,
};

// issuer:test cert
// subject:unrelated subject DN
// issuerKey:secp256r1
// subjectKey:secp256r1
// serialNumber:3
const std::vector<uint8_t> kUnrelatedTestCertDER = {
    0x30, 0x82, 0x01, 0x28, 0x30, 0x81, 0xCD, 0xA0, 0x03, 0x02, 0x01, 0x02,
    0x02, 0x01, 0x03, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7,
    0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10,
    0x06, 0x03, 0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20,
    0x63, 0x65, 0x72, 0x74, 0x30, 0x22, 0x18, 0x0F, 0x32, 0x30, 0x31, 0x37,
    0x31, 0x31, 0x32, 0x37, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5A, 0x18,
    0x0F, 0x32, 0x30, 0x32, 0x30, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x30, 0x5A, 0x30, 0x1F, 0x31, 0x1D, 0x30, 0x1B, 0x06, 0x03,
    0x55, 0x04, 0x03, 0x0C, 0x14, 0x75, 0x6E, 0x72, 0x65, 0x6C, 0x61, 0x74,
    0x65, 0x64, 0x20, 0x73, 0x75, 0x62, 0x6A, 0x65, 0x63, 0x74, 0x20, 0x44,
    0x4E, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86, 0x48, 0xCE, 0x3D,
    0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01, 0x07,
    0x03, 0x42, 0x00, 0x04, 0x4F, 0xBF, 0xBB, 0xBB, 0x61, 0xE0, 0xF8, 0xF9,
    0xB1, 0xA6, 0x0A, 0x59, 0xAC, 0x87, 0x04, 0xE2, 0xEC, 0x05, 0x0B, 0x42,
    0x3E, 0x3C, 0xF7, 0x2E, 0x92, 0x3F, 0x2C, 0x4F, 0x79, 0x4B, 0x45, 0x5C,
    0x2A, 0x69, 0xD2, 0x33, 0x45, 0x6C, 0x36, 0xC4, 0x11, 0x9D, 0x07, 0x06,
    0xE0, 0x0E, 0xED, 0xC8, 0xD1, 0x93, 0x90, 0xD7, 0x99, 0x1B, 0x7B, 0x2D,
    0x07, 0xA3, 0x04, 0xEA, 0xA0, 0x4A, 0xA6, 0xC0, 0x30, 0x0D, 0x06, 0x09,
    0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00, 0x03,
    0x47, 0x00, 0x30, 0x44, 0x02, 0x20, 0x5C, 0x75, 0x51, 0x9F, 0x13, 0x11,
    0x50, 0xCD, 0x5D, 0x8A, 0xDE, 0x20, 0xA3, 0xBC, 0x06, 0x30, 0x91, 0xFF,
    0xB2, 0x73, 0x75, 0x5F, 0x31, 0x64, 0xEC, 0xFD, 0xCB, 0x42, 0x80, 0x0A,
    0x70, 0xE6, 0x02, 0x20, 0x0F, 0x1A, 0x04, 0xC2, 0xF8, 0xBA, 0xC2, 0x94,
    0x26, 0x6E, 0xBC, 0x91, 0x7D, 0xDB, 0x75, 0x7B, 0xE8, 0xA3, 0x4F, 0x69,
    0x1B, 0xF3, 0x1F, 0x2C, 0xCE, 0x82, 0x67, 0xC9, 0x5B, 0xBB, 0xBA, 0x0A,
};

class PK11FindCertsTestBase : public ::testing::Test {
 protected:
  PK11FindCertsTestBase()
      : m_slot(nullptr), test_cert_db_dir_("PK11FindCertsTestBase-") {}

  virtual void SetUp() {
    std::string test_cert_db_path(test_cert_db_dir_.GetPath());
    const char* test_name =
        ::testing::UnitTest::GetInstance()->current_test_info()->name();
    std::string mod_spec = "configDir='sql:";
    mod_spec.append(test_cert_db_path);
    mod_spec.append("' tokenDescription='");
    mod_spec.append(test_name);
    mod_spec.append("'");
    m_slot = SECMOD_OpenUserDB(mod_spec.c_str());
    ASSERT_NE(nullptr, m_slot);
  }

  virtual void TearDown() {
    ASSERT_EQ(SECSuccess, SECMOD_CloseUserDB(m_slot));
    PK11_FreeSlot(m_slot);
    std::string test_cert_db_path(test_cert_db_dir_.GetPath());
    ASSERT_EQ(0, unlink((test_cert_db_path + "/cert9.db").c_str()));
    ASSERT_EQ(0, unlink((test_cert_db_path + "/key4.db").c_str()));
  }

  PK11SlotInfo* m_slot;
  ScopedUniqueDirectory test_cert_db_dir_;
};

class PK11FindRawCertsBySubjectTest : public PK11FindCertsTestBase {};

TEST_F(PK11FindCertsTestBase, CertAddListWithData) {
  ScopedPK11SlotInfo slot(PK11_GetInternalKeySlot());
  ASSERT_TRUE(slot);
  SECItem cert1_item = {siBuffer, const_cast<uint8_t*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  SECItem cert2_item = {siBuffer, const_cast<uint8_t*>(kTestCert2DER.data()),
                        (unsigned int)kTestCert2DER.size()};

  // Make certificates. ScopedCERTCertList will own.
  ScopedCERTCertList list(CERT_NewCertList());
  ASSERT_TRUE(list);
  CERTCertificate* cert1 = CERT_NewTempCertificate(
      CERT_GetDefaultCertDB(), &cert1_item, nullptr, false, false);
  CERTCertificate* cert2 = CERT_NewTempCertificate(
      CERT_GetDefaultCertDB(), &cert2_item, nullptr, false, false);
  ASSERT_NE(nullptr, cert1);
  ASSERT_NE(nullptr, cert2);
  ASSERT_NE(cert1, cert2);

  SECStatus rv = CERT_AddCertToListHeadWithData(list.get(), cert1, cert1);
  EXPECT_EQ(SECSuccess, rv);
  rv = CERT_AddCertToListTailWithData(list.get(), cert2, cert2);
  EXPECT_EQ(SECSuccess, rv);

  CERTCertListNode* node = CERT_LIST_HEAD(list.get());
  ASSERT_NE(nullptr, node);
  EXPECT_EQ(node->cert, cert1);
  EXPECT_EQ(node->appData, cert1);

  node = CERT_LIST_TAIL(list.get());
  ASSERT_NE(nullptr, node);
  EXPECT_EQ(node->cert, cert2);
  EXPECT_EQ(node->appData, cert2);
}

// If we don't have any certificates, we shouldn't get any when we search for
// them.
TEST_F(PK11FindRawCertsBySubjectTest, TestNoCertsImportedNoCertsFound) {
  SECItem subject_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertSubjectDER.data()),
      (unsigned int)kTestCertSubjectDER.size()};
  CERTCertificateList* certificates = nullptr;
  SECStatus rv =
      PK11_FindRawCertsWithSubject(m_slot, &subject_item, &certificates);
  EXPECT_EQ(SECSuccess, rv);
  EXPECT_EQ(nullptr, certificates);
}

// If we have one certificate but it has an unrelated subject DN, we shouldn't
// get it when we search.
TEST_F(PK11FindRawCertsBySubjectTest, TestOneCertImportedNoCertsFound) {
  char cert_nickname[] = "Unrelated Cert";
  SECItem cert_item = {siBuffer,
                       const_cast<unsigned char*>(kUnrelatedTestCertDER.data()),
                       (unsigned int)kUnrelatedTestCertDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert_item, CK_INVALID_HANDLE,
                               cert_nickname, false));

  SECItem subject_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertSubjectDER.data()),
      (unsigned int)kTestCertSubjectDER.size()};
  CERTCertificateList* certificates = nullptr;
  SECStatus rv =
      PK11_FindRawCertsWithSubject(m_slot, &subject_item, &certificates);
  EXPECT_EQ(SECSuccess, rv);
  EXPECT_EQ(nullptr, certificates);
}

TEST_F(PK11FindRawCertsBySubjectTest, TestMultipleMatchingCertsFound) {
  char cert1_nickname[] = "Test Cert 1";
  SECItem cert1_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert1_item, CK_INVALID_HANDLE,
                               cert1_nickname, false));
  char cert2_nickname[] = "Test Cert 2";
  SECItem cert2_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert2DER.data()),
                        (unsigned int)kTestCert2DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert2_item, CK_INVALID_HANDLE,
                               cert2_nickname, false));
  char unrelated_cert_nickname[] = "Unrelated Test Cert";
  SECItem unrelated_cert_item = {
      siBuffer, const_cast<unsigned char*>(kUnrelatedTestCertDER.data()),
      (unsigned int)kUnrelatedTestCertDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &unrelated_cert_item, CK_INVALID_HANDLE,
                               unrelated_cert_nickname, false));

  CERTCertificateList* certificates = nullptr;
  SECItem subject_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertSubjectDER.data()),
      (unsigned int)kTestCertSubjectDER.size()};
  SECStatus rv =
      PK11_FindRawCertsWithSubject(m_slot, &subject_item, &certificates);
  EXPECT_EQ(SECSuccess, rv);
  ASSERT_NE(nullptr, certificates);
  ScopedCERTCertificateList scoped_certificates(certificates);
  ASSERT_EQ(2, scoped_certificates->len);

  std::vector<uint8_t> found_cert1(
      scoped_certificates->certs[0].data,
      scoped_certificates->certs[0].data + scoped_certificates->certs[0].len);
  std::vector<uint8_t> found_cert2(
      scoped_certificates->certs[1].data,
      scoped_certificates->certs[1].data + scoped_certificates->certs[1].len);
  EXPECT_TRUE(found_cert1 == kTestCert1DER || found_cert1 == kTestCert2DER);
  EXPECT_TRUE(found_cert2 == kTestCert1DER || found_cert2 == kTestCert2DER);
  EXPECT_TRUE(found_cert1 != found_cert2);
}

// If we try to search the internal slots, we won't find the certificate we just
// imported (because it's on a different slot).
TEST_F(PK11FindRawCertsBySubjectTest, TestNoCertsOnInternalSlots) {
  char cert1_nickname[] = "Test Cert 1";
  SECItem cert1_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert1_item, CK_INVALID_HANDLE,
                               cert1_nickname, false));

  SECItem subject_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertSubjectDER.data()),
      (unsigned int)kTestCertSubjectDER.size()};
  CERTCertificateList* internal_key_slot_certificates = nullptr;
  ScopedPK11SlotInfo internal_key_slot(PK11_GetInternalKeySlot());
  SECStatus rv = PK11_FindRawCertsWithSubject(
      internal_key_slot.get(), &subject_item, &internal_key_slot_certificates);
  EXPECT_EQ(SECSuccess, rv);
  EXPECT_EQ(nullptr, internal_key_slot_certificates);

  CERTCertificateList* internal_slot_certificates = nullptr;
  ScopedPK11SlotInfo internal_slot(PK11_GetInternalSlot());
  rv = PK11_FindRawCertsWithSubject(internal_slot.get(), &subject_item,
                                    &internal_slot_certificates);
  EXPECT_EQ(SECSuccess, rv);
  EXPECT_EQ(nullptr, internal_slot_certificates);
}

// issuer:test cert
// subject:(empty - this had to be done by hand as pycert doesn't support this)
// issuerKey:secp256r1
// subjectKey:secp256r1
// serialNumber:4
const std::vector<uint8_t> kEmptySubjectCertDER = {
    0x30, 0x82, 0x01, 0x09, 0x30, 0x81, 0xAE, 0xA0, 0x03, 0x02, 0x01, 0x02,
    0x02, 0x01, 0x04, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7,
    0x0D, 0x01, 0x01, 0x0B, 0x05, 0x00, 0x30, 0x14, 0x31, 0x12, 0x30, 0x10,
    0x06, 0x03, 0x55, 0x04, 0x03, 0x0C, 0x09, 0x74, 0x65, 0x73, 0x74, 0x20,
    0x63, 0x65, 0x72, 0x74, 0x30, 0x22, 0x18, 0x0F, 0x32, 0x30, 0x31, 0x37,
    0x31, 0x31, 0x32, 0x37, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5A, 0x18,
    0x0F, 0x32, 0x30, 0x32, 0x30, 0x30, 0x32, 0x30, 0x35, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x30, 0x5A, 0x30, 0x00, 0x30, 0x59, 0x30, 0x13, 0x06, 0x07,
    0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48,
    0xCE, 0x3D, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x4F, 0xBF, 0xBB,
    0xBB, 0x61, 0xE0, 0xF8, 0xF9, 0xB1, 0xA6, 0x0A, 0x59, 0xAC, 0x87, 0x04,
    0xE2, 0xEC, 0x05, 0x0B, 0x42, 0x3E, 0x3C, 0xF7, 0x2E, 0x92, 0x3F, 0x2C,
    0x4F, 0x79, 0x4B, 0x45, 0x5C, 0x2A, 0x69, 0xD2, 0x33, 0x45, 0x6C, 0x36,
    0xC4, 0x11, 0x9D, 0x07, 0x06, 0xE0, 0x0E, 0xED, 0xC8, 0xD1, 0x93, 0x90,
    0xD7, 0x99, 0x1B, 0x7B, 0x2D, 0x07, 0xA3, 0x04, 0xEA, 0xA0, 0x4A, 0xA6,
    0xC0, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01,
    0x01, 0x0B, 0x05, 0x00, 0x03, 0x47, 0x00, 0x30, 0x44, 0x02, 0x20, 0x5C,
    0x75, 0x51, 0x9F, 0x13, 0x11, 0x50, 0xCD, 0x5D, 0x8A, 0xDE, 0x20, 0xA3,
    0xBC, 0x06, 0x30, 0x91, 0xFF, 0xB2, 0x73, 0x75, 0x5F, 0x31, 0x64, 0xEC,
    0xFD, 0xCB, 0x42, 0x80, 0x0A, 0x70, 0xE6, 0x02, 0x20, 0x31, 0x1B, 0x92,
    0xAA, 0xA8, 0xB7, 0x51, 0x52, 0x7B, 0x64, 0xD6, 0xF7, 0x2F, 0x0C, 0xFB,
    0xBB, 0xD5, 0xDF, 0x86, 0xA3, 0x97, 0x96, 0x60, 0x42, 0xDA, 0xD4, 0xA8,
    0x5F, 0x2F, 0xA4, 0xDE, 0x7C};

std::vector<uint8_t> kEmptySubjectDER = {0x30, 0x00};

// This certificate has the smallest possible subject. Finding it should work.
TEST_F(PK11FindRawCertsBySubjectTest, TestFindEmptySubject) {
  char empty_subject_cert_nickname[] = "Empty Subject Cert";
  SECItem empty_subject_cert_item = {
      siBuffer, const_cast<unsigned char*>(kEmptySubjectCertDER.data()),
      (unsigned int)kEmptySubjectCertDER.size()};
  ASSERT_EQ(SECSuccess, PK11_ImportDERCert(m_slot, &empty_subject_cert_item,
                                           CK_INVALID_HANDLE,
                                           empty_subject_cert_nickname, false));

  SECItem subject_item = {siBuffer,
                          const_cast<unsigned char*>(kEmptySubjectDER.data()),
                          (unsigned int)kEmptySubjectDER.size()};
  CERTCertificateList* certificates = nullptr;
  SECStatus rv =
      PK11_FindRawCertsWithSubject(m_slot, &subject_item, &certificates);
  EXPECT_EQ(SECSuccess, rv);
  ASSERT_NE(nullptr, certificates);
  ScopedCERTCertificateList scoped_certificates(certificates);
  ASSERT_EQ(1, scoped_certificates->len);

  std::vector<uint8_t> found_cert(
      scoped_certificates->certs[0].data,
      scoped_certificates->certs[0].data + scoped_certificates->certs[0].len);
  EXPECT_EQ(kEmptySubjectCertDER, found_cert);
}

// Searching for a zero-length subject doesn't make sense (the minimum subject
// is the SEQUENCE tag followed by a length byte of 0), but it shouldn't cause
// problems.
TEST_F(PK11FindRawCertsBySubjectTest, TestSearchForNullSubject) {
  char cert1_nickname[] = "Test Cert 1";
  SECItem cert1_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert1_item, CK_INVALID_HANDLE,
                               cert1_nickname, false));

  SECItem subject_item = {siBuffer, nullptr, 0};
  CERTCertificateList* certificates = nullptr;
  SECStatus rv =
      PK11_FindRawCertsWithSubject(m_slot, &subject_item, &certificates);
  EXPECT_EQ(SECSuccess, rv);
  EXPECT_EQ(nullptr, certificates);
}

class PK11GetCertsMatchingPrivateKeyTest : public PK11FindCertsTestBase {};

// This is the private secp256r1 key corresponding to the above test
// certificates.
const std::vector<uint8_t> kTestPrivateKeyInfoDER = {
    0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86,
    0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d,
    0x03, 0x01, 0x07, 0x04, 0x6d, 0x30, 0x6b, 0x02, 0x01, 0x01, 0x04, 0x20,
    0x21, 0x91, 0x40, 0x3d, 0x57, 0x10, 0xbf, 0x15, 0xa2, 0x65, 0x81, 0x8c,
    0xd4, 0x2e, 0xd6, 0xfe, 0xdf, 0x09, 0xad, 0xd9, 0x2d, 0x78, 0xb1, 0x8e,
    0x7a, 0x1e, 0x9f, 0xeb, 0x95, 0x52, 0x47, 0x02, 0xa1, 0x44, 0x03, 0x42,
    0x00, 0x04, 0x4f, 0xbf, 0xbb, 0xbb, 0x61, 0xe0, 0xf8, 0xf9, 0xb1, 0xa6,
    0x0a, 0x59, 0xac, 0x87, 0x04, 0xe2, 0xec, 0x05, 0x0b, 0x42, 0x3e, 0x3c,
    0xf7, 0x2e, 0x92, 0x3f, 0x2c, 0x4f, 0x79, 0x4b, 0x45, 0x5c, 0x2a, 0x69,
    0xd2, 0x33, 0x45, 0x6c, 0x36, 0xc4, 0x11, 0x9d, 0x07, 0x06, 0xe0, 0x0e,
    0xed, 0xc8, 0xd1, 0x93, 0x90, 0xd7, 0x99, 0x1b, 0x7b, 0x2d, 0x07, 0xa3,
    0x04, 0xea, 0xa0, 0x4a, 0xa6, 0xc0,
};

// issuer:test cert (different key)
// subject:test cert (different key)
// issuerKey:secp256k1
// subjectKey:secp256k1
// serialNumber:1
const std::vector<uint8_t> kTestCertWithOtherKeyDER = {
    0x30, 0x82, 0x01, 0x3a, 0x30, 0x81, 0xdf, 0xa0, 0x03, 0x02, 0x01, 0x02,
    0x02, 0x01, 0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
    0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, 0x24, 0x31, 0x22, 0x30, 0x20,
    0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x19, 0x74, 0x65, 0x73, 0x74, 0x20,
    0x63, 0x65, 0x72, 0x74, 0x20, 0x28, 0x64, 0x69, 0x66, 0x66, 0x65, 0x72,
    0x65, 0x6e, 0x74, 0x20, 0x6b, 0x65, 0x79, 0x29, 0x30, 0x22, 0x18, 0x0f,
    0x32, 0x30, 0x31, 0x37, 0x31, 0x31, 0x32, 0x37, 0x30, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x5a, 0x18, 0x0f, 0x32, 0x30, 0x32, 0x30, 0x30, 0x32, 0x30,
    0x35, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x30, 0x24, 0x31, 0x22,
    0x30, 0x20, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x19, 0x74, 0x65, 0x73,
    0x74, 0x20, 0x63, 0x65, 0x72, 0x74, 0x20, 0x28, 0x64, 0x69, 0x66, 0x66,
    0x65, 0x72, 0x65, 0x6e, 0x74, 0x20, 0x6b, 0x65, 0x79, 0x29, 0x30, 0x56,
    0x30, 0x10, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,
    0x05, 0x2b, 0x81, 0x04, 0x00, 0x0a, 0x03, 0x42, 0x00, 0x04, 0x35, 0xee,
    0x7c, 0x72, 0x89, 0xd8, 0xfe, 0xf7, 0xa8, 0x6a, 0xfe, 0x5d, 0xa6, 0x6d,
    0x8b, 0xc2, 0xeb, 0xb6, 0xa8, 0x54, 0x3f, 0xd2, 0xfe, 0xad, 0x08, 0x9f,
    0x45, 0xce, 0x7a, 0xcd, 0x0f, 0xa6, 0x43, 0x82, 0xa9, 0x50, 0x0c, 0x41,
    0xda, 0xd7, 0x70, 0xff, 0xd4, 0xb5, 0x11, 0xbf, 0x4b, 0x49, 0x2e, 0xb1,
    0x23, 0x88, 0x00, 0xc3, 0x2c, 0x4f, 0x76, 0xc7, 0x3a, 0x3f, 0x32, 0x94,
    0xe7, 0xc5, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
    0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x47, 0x00, 0x30, 0x44, 0x02, 0x20,
    0x63, 0x59, 0x02, 0x01, 0x89, 0xd7, 0x3e, 0x5b, 0xff, 0xd1, 0x16, 0x4e,
    0xe3, 0xe2, 0x0a, 0xe0, 0x4a, 0xd8, 0x75, 0xaf, 0x77, 0x5c, 0x93, 0x60,
    0xba, 0x10, 0x1f, 0x97, 0xdd, 0x27, 0x2d, 0x24, 0x02, 0x20, 0x1e, 0xa0,
    0x7b, 0xee, 0x90, 0x9b, 0x5f, 0x2c, 0x49, 0xd6, 0x61, 0xda, 0x31, 0x14,
    0xb1, 0xa4, 0x0d, 0x2d, 0x90, 0x2b, 0x70, 0xd8, 0x6b, 0x07, 0x64, 0x27,
    0xa5, 0x2e, 0xfe, 0xca, 0x6e, 0xe6,
};

// If there are no certs at all, we'll get back a null list.
TEST_F(PK11GetCertsMatchingPrivateKeyTest, TestNoCertsAtAll) {
  SECItem private_key_info = {
      siBuffer,
      const_cast<unsigned char*>(kTestPrivateKeyInfoDER.data()),
      (unsigned int)kTestPrivateKeyInfoDER.size(),
  };
  SECKEYPrivateKey* priv_key = nullptr;
  ASSERT_EQ(SECSuccess, PK11_ImportDERPrivateKeyInfoAndReturnKey(
                            m_slot, &private_key_info, nullptr, nullptr, false,
                            false, KU_ALL, &priv_key, nullptr));
  ASSERT_NE(nullptr, priv_key);
  ScopedSECKEYPrivateKey scoped_priv_key(priv_key);
  ScopedCERTCertList certs(
      PK11_GetCertsMatchingPrivateKey(scoped_priv_key.get()));
  ASSERT_TRUE(CERT_LIST_EMPTY(certs));
}

// If there are no certs for the private key, we'll get back a null list.
TEST_F(PK11GetCertsMatchingPrivateKeyTest, TestNoCertsForKey) {
  SECItem private_key_info = {
      siBuffer,
      const_cast<unsigned char*>(kTestPrivateKeyInfoDER.data()),
      (unsigned int)kTestPrivateKeyInfoDER.size(),
  };
  SECKEYPrivateKey* priv_key = nullptr;
  ASSERT_EQ(SECSuccess, PK11_ImportDERPrivateKeyInfoAndReturnKey(
                            m_slot, &private_key_info, nullptr, nullptr, false,
                            false, KU_ALL, &priv_key, nullptr));
  ASSERT_NE(nullptr, priv_key);
  ScopedSECKEYPrivateKey scoped_priv_key(priv_key);

  char cert_nickname[] = "Test Cert With Other Key";
  SECItem cert_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertWithOtherKeyDER.data()),
      (unsigned int)kTestCertWithOtherKeyDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert_item, CK_INVALID_HANDLE,
                               cert_nickname, false));

  ScopedCERTCertList certs(
      PK11_GetCertsMatchingPrivateKey(scoped_priv_key.get()));
  ASSERT_TRUE(CERT_LIST_EMPTY(certs));
}

void CheckCertListForSubjects(
    ScopedCERTCertList& list,
    const std::vector<const char*>& expected_subjects) {
  ASSERT_NE(nullptr, list.get());
  ASSERT_NE(0ul, expected_subjects.size());
  for (const auto& expected_subject : expected_subjects) {
    size_t list_length = 0;
    bool found = false;
    for (CERTCertListNode* n = CERT_LIST_HEAD(list); !CERT_LIST_END(n, list);
         n = CERT_LIST_NEXT(n)) {
      list_length++;
      if (strcmp(n->cert->subjectName, expected_subject) == 0) {
        ASSERT_FALSE(found);
        found = true;
      }
    }
    ASSERT_TRUE(found);
    ASSERT_EQ(expected_subjects.size(), list_length);
  }
}

// We should only get back certs that actually match the private key.
TEST_F(PK11GetCertsMatchingPrivateKeyTest, TestOneCertForKey) {
  SECItem private_key_info = {
      siBuffer,
      const_cast<unsigned char*>(kTestPrivateKeyInfoDER.data()),
      (unsigned int)kTestPrivateKeyInfoDER.size(),
  };
  SECKEYPrivateKey* priv_key = nullptr;
  ASSERT_EQ(SECSuccess, PK11_ImportDERPrivateKeyInfoAndReturnKey(
                            m_slot, &private_key_info, nullptr, nullptr, false,
                            false, KU_ALL, &priv_key, nullptr));
  ASSERT_NE(nullptr, priv_key);
  ScopedSECKEYPrivateKey scoped_priv_key(priv_key);

  char cert1_nickname[] = "Test Cert 1";
  SECItem cert1_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert1_item, CK_INVALID_HANDLE,
                               cert1_nickname, false));

  char cert_nickname[] = "Test Cert With Other Key";
  SECItem cert_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertWithOtherKeyDER.data()),
      (unsigned int)kTestCertWithOtherKeyDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert_item, CK_INVALID_HANDLE,
                               cert_nickname, false));

  ScopedCERTCertList certs(
      PK11_GetCertsMatchingPrivateKey(scoped_priv_key.get()));
  CheckCertListForSubjects(certs, {"CN=test cert"});
}

// We should be able to get back all certs that match the private key.
TEST_F(PK11GetCertsMatchingPrivateKeyTest, TestTwoCertsForKey) {
  SECItem private_key_info = {
      siBuffer,
      const_cast<unsigned char*>(kTestPrivateKeyInfoDER.data()),
      (unsigned int)kTestPrivateKeyInfoDER.size(),
  };
  SECKEYPrivateKey* priv_key = nullptr;
  ASSERT_EQ(SECSuccess, PK11_ImportDERPrivateKeyInfoAndReturnKey(
                            m_slot, &private_key_info, nullptr, nullptr, false,
                            false, KU_ALL, &priv_key, nullptr));
  ASSERT_NE(nullptr, priv_key);
  ScopedSECKEYPrivateKey scoped_priv_key(priv_key);

  char cert1_nickname[] = "Test Cert 1";
  SECItem cert1_item = {siBuffer,
                        const_cast<unsigned char*>(kTestCert1DER.data()),
                        (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert1_item, CK_INVALID_HANDLE,
                               cert1_nickname, false));
  char cert2_nickname[] = "Test Cert 2 (same key, different subject)";
  SECItem cert2_item = {
      siBuffer, const_cast<unsigned char*>(kUnrelatedTestCertDER.data()),
      (unsigned int)kUnrelatedTestCertDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert2_item, CK_INVALID_HANDLE,
                               cert2_nickname, false));

  char cert_nickname[] = "Test Cert With Other Key";
  SECItem cert_item = {
      siBuffer, const_cast<unsigned char*>(kTestCertWithOtherKeyDER.data()),
      (unsigned int)kTestCertWithOtherKeyDER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert_item, CK_INVALID_HANDLE,
                               cert_nickname, false));

  ScopedCERTCertList certs(
      PK11_GetCertsMatchingPrivateKey(scoped_priv_key.get()));
  CheckCertListForSubjects(certs, {"CN=test cert", "CN=unrelated subject DN"});
}

class PK11FindEncodedCertInSlotTest : public PK11FindCertsTestBase {};

TEST_F(PK11FindEncodedCertInSlotTest, TestFindEncodedCert) {
  char cert_nickname[] = "Test Cert";
  SECItem cert_item = {siBuffer,
                       const_cast<unsigned char*>(kTestCert1DER.data()),
                       (unsigned int)kTestCert1DER.size()};
  ASSERT_EQ(SECSuccess,
            PK11_ImportDERCert(m_slot, &cert_item, CK_INVALID_HANDLE,
                               cert_nickname, false));

  // This certificate was just imported, so finding it by its encoded value
  // should succeed.
  CK_OBJECT_HANDLE cert_handle_in_slot =
      PK11_FindEncodedCertInSlot(m_slot, &cert_item, nullptr);
  // CK_INVALID_HANDLE is #defined to be the literal 0, which the compiler
  // interprets as a signed value, which then causes a warning-as-an-error
  // about comparing values of different signs.
  ASSERT_NE(static_cast<CK_ULONG>(CK_INVALID_HANDLE), cert_handle_in_slot);

  // The certificate should not exist on the internal slot, so this should
  // return CK_INVALID_HANDLE.
  ScopedPK11SlotInfo internal_slot(PK11_GetInternalSlot());
  ASSERT_NE(nullptr, internal_slot);
  CK_OBJECT_HANDLE cert_handle_in_internal_slot =
      PK11_FindEncodedCertInSlot(internal_slot.get(), &cert_item, nullptr);
  ASSERT_EQ(static_cast<CK_ULONG>(CK_INVALID_HANDLE),
            cert_handle_in_internal_slot);

  // The certificate should not exist on the internal key slot, so this should
  // return CK_INVALID_HANDLE.
  ScopedPK11SlotInfo internal_key_slot(PK11_GetInternalKeySlot());
  ASSERT_NE(nullptr, internal_key_slot);
  CK_OBJECT_HANDLE cert_handle_in_internal_key_slot =
      PK11_FindEncodedCertInSlot(internal_key_slot.get(), &cert_item, nullptr);
  ASSERT_EQ(static_cast<CK_ULONG>(CK_INVALID_HANDLE),
            cert_handle_in_internal_key_slot);

  // This certificate hasn't been imported to any token, so looking for it
  // should return CK_INVALID_HANDLE.
  SECItem unknown_cert_item = {siBuffer,
                               const_cast<unsigned char*>(kTestCert2DER.data()),
                               (unsigned int)kTestCert2DER.size()};
  CK_OBJECT_HANDLE unknown_cert_handle_in_slot =
      PK11_FindEncodedCertInSlot(m_slot, &unknown_cert_item, nullptr);
  ASSERT_EQ(static_cast<CK_ULONG>(CK_INVALID_HANDLE),
            unknown_cert_handle_in_slot);
}

}  // namespace nss_test