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gecko-dev/security/manager/ssl/nsNSSCertificate.cpp

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/* -*- 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/Assertions.h"
#include "mozilla/Base64.h"
#include "mozilla/Casting.h"
#include "mozilla/NotNull.h"
#include "mozilla/Unused.h"
#include "nsArray.h"
#include "nsCOMPtr.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 "nsNSSCertTrust.h"
#include "nsNSSCertValidity.h"
#include "nsPK11TokenDB.h"
#include "nsPKCS12Blob.h"
#include "nsProxyRelease.h"
#include "nsReadableUtils.h"
#include "nsString.h"
#include "nsThreadUtils.h"
#include "nsUnicharUtils.h"
#include "nspr.h"
#include "mozpkix/pkixnss.h"
#include "mozpkix/pkixtypes.h"
#include "mozpkix/Result.h"
#include "prerror.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;
class nsNSSCertListEnumerator : public nsSimpleEnumerator
{
public:
NS_DECL_NSISIMPLEENUMERATOR
const nsID& DefaultInterface() override { return NS_GET_IID(nsIX509Cert); }
explicit nsNSSCertListEnumerator(
const std::vector<UniqueCERTCertificate>& certs);
nsNSSCertListEnumerator(const nsNSSCertListEnumerator&) = delete;
void operator=(const nsNSSCertListEnumerator&) = delete;
private:
virtual ~nsNSSCertListEnumerator() = default;
std::vector<UniqueCERTCertificate> mCerts;
std::vector<UniqueCERTCertificate>::const_iterator mPosition;
};
// 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*/ nsNSSCertificate*
nsNSSCertificate::Create(CERTCertificate* cert)
{
if (cert)
return new nsNSSCertificate(cert);
else
return new nsNSSCertificate();
}
nsNSSCertificate*
nsNSSCertificate::ConstructFromDER(char* certDER, int derLen)
{
nsNSSCertificate* newObject = nsNSSCertificate::Create();
if (newObject && !newObject->InitFromDER(certDER, derLen)) {
delete newObject;
newObject = nullptr;
}
return newObject;
}
bool
nsNSSCertificate::InitFromDER(char* certDER, int derLen)
{
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);
GetSubjectAltNames();
return true;
}
nsNSSCertificate::nsNSSCertificate(CERTCertificate* cert)
: mCert(nullptr)
, mPermDelete(false)
, mCertType(CERT_TYPE_NOT_YET_INITIALIZED)
, mSubjectAltNames()
{
if (cert) {
mCert.reset(CERT_DupCertificate(cert));
GetSubjectAltNames();
}
}
nsNSSCertificate::nsNSSCertificate()
: mCert(nullptr)
, mPermDelete(false)
, mCertType(CERT_TYPE_NOT_YET_INITIALIZED)
, mSubjectAltNames()
{
}
nsNSSCertificate::~nsNSSCertificate()
{
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());
}
}
}
static uint32_t
getCertType(CERTCertificate* cert)
{
nsNSSCertTrust trust(cert->trust);
if (cert->nickname && trust.HasAnyUser()) {
return nsIX509Cert::USER_CERT;
}
if (trust.HasAnyCA()) {
return nsIX509Cert::CA_CERT;
}
if (trust.HasPeer(true, false)) {
return nsIX509Cert::SERVER_CERT;
}
if (trust.HasPeer(false, true) && cert->emailAddr) {
return nsIX509Cert::EMAIL_CERT;
}
if (CERT_IsCACert(cert, nullptr)) {
return nsIX509Cert::CA_CERT;
}
if (cert->emailAddr) {
return nsIX509Cert::EMAIL_CERT;
}
return nsIX509Cert::UNKNOWN_CERT;
}
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);
*aIsSelfSigned = mCert->isRoot;
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetIsBuiltInRoot(bool* aIsBuiltInRoot)
{
NS_ENSURE_ARG(aIsBuiltInRoot);
pkix::Result rv = IsCertBuiltInRoot(mCert.get(), *aIsBuiltInRoot);
if (rv != pkix::Result::Success) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
nsNSSCertificate::MarkForPermDeletion()
{
// 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 bundleKey Key for the string to append.
* @param currentText The text to append to, using commas as separators.
*/
template<size_t N>
void
AppendBundleStringCommaSeparated(const char (&bundleKey)[N],
/*in/out*/ nsAString& currentText)
{
nsAutoString bundleString;
nsresult rv = GetPIPNSSBundleString(bundleKey, bundleString);
if (NS_FAILED(rv)) {
return;
}
if (!currentText.IsEmpty()) {
currentText.Append(',');
}
currentText.Append(bundleString);
}
NS_IMETHODIMP
nsNSSCertificate::GetKeyUsages(nsAString& text)
{
text.Truncate();
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];
}
if (keyUsage & KU_DIGITAL_SIGNATURE) {
AppendBundleStringCommaSeparated("CertDumpKUSign", text);
}
if (keyUsage & KU_NON_REPUDIATION) {
AppendBundleStringCommaSeparated("CertDumpKUNonRep", text);
}
if (keyUsage & KU_KEY_ENCIPHERMENT) {
AppendBundleStringCommaSeparated("CertDumpKUEnc", text);
}
if (keyUsage & KU_DATA_ENCIPHERMENT) {
AppendBundleStringCommaSeparated("CertDumpKUDEnc", text);
}
if (keyUsage & KU_KEY_AGREEMENT) {
AppendBundleStringCommaSeparated("CertDumpKUKA", text);
}
if (keyUsage & KU_KEY_CERT_SIGN) {
AppendBundleStringCommaSeparated("CertDumpKUCertSign", text);
}
if (keyUsage & KU_CRL_SIGN) {
AppendBundleStringCommaSeparated("CertDumpKUCRLSign", text);
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetDbKey(nsACString& aDbKey)
{
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::GetDisplayName(nsAString& aDisplayName)
{
aDisplayName.Truncate();
MOZ_ASSERT(mCert, "mCert should not be null in GetDisplayName");
if (!mCert) {
return NS_ERROR_FAILURE;
}
UniquePORTString commonName(CERT_GetCommonName(&mCert->subject));
UniquePORTString organizationalUnitName(CERT_GetOrgUnitName(&mCert->subject));
UniquePORTString organizationName(CERT_GetOrgName(&mCert->subject));
bool isBuiltInRoot;
nsresult rv = GetIsBuiltInRoot(&isBuiltInRoot);
if (NS_FAILED(rv)) {
return rv;
}
// Only use the nickname for built-in roots where we already have a hard-coded
// reasonable display name (unfortunately we have to strip off the leading
// slot identifier followed by a ':'). Otherwise, attempt to use the following
// in order:
// - the common name, if present
// - an organizational unit name, if present
// - an organization name, if present
// - the entire subject distinguished name, if non-empty
// - an email address, if one can be found
// In the unlikely event that none of these fields are present and non-empty
// (the subject really shouldn't be empty), an empty string is returned.
nsAutoCString builtInRootNickname;
if (isBuiltInRoot) {
nsAutoCString fullNickname(mCert->nickname);
int32_t index = fullNickname.Find(":");
if (index != kNotFound) {
// Substring will gracefully handle the case where index is the last
// character in the string (that is, if the nickname is just
// "Builtin Object Token:"). In that case, we'll get an empty string.
builtInRootNickname = Substring(fullNickname,
AssertedCast<uint32_t>(index + 1));
}
}
const char* nameOptions[] = {
builtInRootNickname.get(),
commonName.get(),
organizationalUnitName.get(),
organizationName.get(),
mCert->subjectName,
mCert->emailAddr
};
for (auto nameOption : nameOptions) {
if (nameOption) {
size_t len = strlen(nameOption);
if (len > 0) {
LossyUTF8ToUTF16(nameOption, len, aDisplayName);
return NS_OK;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetEmailAddress(nsAString& aEmailAddress)
{
if (mCert->emailAddr) {
CopyUTF8toUTF16(MakeStringSpan(mCert->emailAddr), aEmailAddress);
} else {
GetPIPNSSBundleString("CertNoEmailAddress", aEmailAddress);
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetEmailAddresses(uint32_t* aLength, char16_t*** aAddresses)
{
NS_ENSURE_ARG(aLength);
NS_ENSURE_ARG(aAddresses);
*aLength = 0;
for (const char* aAddr = CERT_GetFirstEmailAddress(mCert.get());
aAddr;
aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr)) {
++(*aLength);
}
*aAddresses = (char16_t**) moz_xmalloc(sizeof(char16_t*) * (*aLength));
uint32_t iAddr = 0;
for (const char* aAddr = CERT_GetFirstEmailAddress(mCert.get());
aAddr;
aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr)) {
(*aAddresses)[iAddr] = ToNewUnicode(nsDependentCString(aAddr));
iAddr++;
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::ContainsEmailAddress(const nsAString& aEmailAddress,
bool* result)
{
NS_ENSURE_ARG(result);
*result = false;
for (const char* aAddr = CERT_GetFirstEmailAddress(mCert.get());
aAddr;
aAddr = CERT_GetNextEmailAddress(mCert.get(), aAddr)) {
nsAutoString certAddr;
LossyUTF8ToUTF16(aAddr, strlen(aAddr), certAddr);
ToLowerCase(certAddr);
nsAutoString testAddr(aEmailAddress);
ToLowerCase(testAddr);
if (certAddr == testAddr) {
*result = true;
break;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetCommonName(nsAString& aCommonName)
{
aCommonName.Truncate();
if (mCert) {
UniquePORTString commonName(CERT_GetCommonName(&mCert->subject));
if (commonName) {
LossyUTF8ToUTF16(commonName.get(), strlen(commonName.get()), aCommonName);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetOrganization(nsAString& aOrganization)
{
aOrganization.Truncate();
if (mCert) {
UniquePORTString organization(CERT_GetOrgName(&mCert->subject));
if (organization) {
LossyUTF8ToUTF16(organization.get(), strlen(organization.get()),
aOrganization);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetIssuerCommonName(nsAString& aCommonName)
{
aCommonName.Truncate();
if (mCert) {
UniquePORTString commonName(CERT_GetCommonName(&mCert->issuer));
if (commonName) {
LossyUTF8ToUTF16(commonName.get(), strlen(commonName.get()), aCommonName);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetIssuerOrganization(nsAString& aOrganization)
{
aOrganization.Truncate();
if (mCert) {
UniquePORTString organization(CERT_GetOrgName(&mCert->issuer));
if (organization) {
LossyUTF8ToUTF16(organization.get(), strlen(organization.get()),
aOrganization);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetIssuerOrganizationUnit(nsAString& aOrganizationUnit)
{
aOrganizationUnit.Truncate();
if (mCert) {
UniquePORTString organizationUnit(CERT_GetOrgUnitName(&mCert->issuer));
if (organizationUnit) {
LossyUTF8ToUTF16(organizationUnit.get(), strlen(organizationUnit.get()),
aOrganizationUnit);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetOrganizationalUnit(nsAString& aOrganizationalUnit)
{
aOrganizationalUnit.Truncate();
if (mCert) {
UniquePORTString orgunit(CERT_GetOrgUnitName(&mCert->subject));
if (orgunit) {
LossyUTF8ToUTF16(orgunit.get(), strlen(orgunit.get()),
aOrganizationalUnit);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetSubjectName(nsAString& _subjectName)
{
_subjectName.Truncate();
if (mCert->subjectName) {
LossyUTF8ToUTF16(mCert->subjectName, strlen(mCert->subjectName),
_subjectName);
}
return NS_OK;
}
// Reads dNSName and iPAddress entries encountered in the subject alternative
// name extension of the certificate and stores them in mSubjectAltNames.
void
nsNSSCertificate::GetSubjectAltNames()
{
mSubjectAltNames.clear();
ScopedAutoSECItem altNameExtension;
SECStatus rv = CERT_FindCertExtension(mCert.get(),
SEC_OID_X509_SUBJECT_ALT_NAME,
&altNameExtension);
if (rv != SECSuccess) {
return;
}
UniquePLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
if (!arena) {
return;
}
CERTGeneralName* sanNameList(CERT_DecodeAltNameExtension(arena.get(),
&altNameExtension));
if (!sanNameList) {
return;
}
CERTGeneralName* current = sanNameList;
do {
nsAutoString name;
switch (current->type) {
case certDNSName:
{
nsDependentCSubstring nameFromCert(BitwiseCast<char*, unsigned char*>(
current->name.other.data),
current->name.other.len);
// dNSName fields are defined as type IA5String and thus should
// be limited to ASCII characters.
if (IsASCII(nameFromCert)) {
name.Assign(NS_ConvertASCIItoUTF16(nameFromCert));
mSubjectAltNames.push_back(name);
}
}
break;
case certIPAddress:
{
char buf[INET6_ADDRSTRLEN];
PRNetAddr addr;
if (current->name.other.len == 4) {
addr.inet.family = PR_AF_INET;
memcpy(&addr.inet.ip, current->name.other.data,
current->name.other.len);
PR_NetAddrToString(&addr, buf, sizeof(buf));
name.AssignASCII(buf);
} else if (current->name.other.len == 16) {
addr.ipv6.family = PR_AF_INET6;
memcpy(&addr.ipv6.ip, current->name.other.data,
current->name.other.len);
PR_NetAddrToString(&addr, buf, sizeof(buf));
name.AssignASCII(buf);
} else {
/* invalid IP address */
}
if (!name.IsEmpty()) {
mSubjectAltNames.push_back(name);
}
break;
}
default: // all other types of names are ignored
break;
}
current = CERT_GetNextGeneralName(current);
} while (current != sanNameList); // double linked
return;
}
NS_IMETHODIMP
nsNSSCertificate::GetSubjectAltNames(nsAString& _subjectAltNames)
{
_subjectAltNames.Truncate();
for (auto altName : mSubjectAltNames) {
if (!_subjectAltNames.IsEmpty()) {
_subjectAltNames.Append(',');
}
_subjectAltNames.Append(altName);
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetIssuerName(nsAString& _issuerName)
{
_issuerName.Truncate();
if (mCert->issuerName) {
LossyUTF8ToUTF16(mCert->issuerName, strlen(mCert->issuerName), _issuerName);
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetSerialNumber(nsAString& _serialNumber)
{
_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)
{
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)
{
MOZ_ASSERT(mCert);
if (!mCert) {
return NS_ERROR_FAILURE;
}
UniquePK11SlotInfo internalSlot(PK11_GetInternalSlot());
if (!internalSlot) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIPK11Token> token(
new nsPK11Token(mCert->slot ? mCert->slot : internalSlot.get()));
nsAutoCString tmp;
nsresult rv = token->GetTokenName(tmp);
if (NS_FAILED(rv)) {
return rv;
}
aTokenName.Assign(NS_ConvertUTF8toUTF16(tmp));
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetSha256SubjectPublicKeyInfoDigest(nsACString& aSha256SPKIDigest)
{
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)
{
if (mCert) {
*aArray = (uint8_t*)moz_xmalloc(mCert->derCert.len);
memcpy(*aArray, mCert->derCert.data, mCert->derCert.len);
*aLength = mCert->derCert.len;
return NS_OK;
}
*aLength = 0;
return NS_ERROR_FAILURE;
}
CERTCertificate*
nsNSSCertificate::GetCert()
{
return (mCert) ? CERT_DupCertificate(mCert.get()) : nullptr;
}
NS_IMETHODIMP
nsNSSCertificate::GetValidity(nsIX509CertValidity** aValidity)
{
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);
if (!NS_IsMainThread()) {
return NS_ERROR_NOT_SAME_THREAD;
}
return CreateASN1Struct(aASN1Structure);
}
NS_IMETHODIMP
nsNSSCertificate::Equals(nsIX509Cert* other, bool* result)
{
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)
{
// Commonly we'll store only 3 certificates. If this is a verified certificate
// chain, it may be as many as 8 certificates. If this is a list of all known
// certificates, it may be a few hundred. We'll optimize for the common case
// (i.e. a verified certificate chain).
mCerts.reserve(8);
if (certList.get()) {
for (CERTCertListNode* node = CERT_LIST_HEAD(certList.get());
!CERT_LIST_END(node, certList.get());
node = CERT_LIST_NEXT(node)) {
UniqueCERTCertificate cert(CERT_DupCertificate(node->cert));
mCerts.push_back(std::move(cert));
}
}
}
nsNSSCertList::nsNSSCertList()
{
// Commonly we'll store only 3 certificates. If this is a verified certificate
// chain, it may be as many as 8 certificates. If this is a list of all known
// certificates, it may be a few hundred. We'll optimize for the common case
// (i.e. a verified certificate chain).
mCerts.reserve(8);
}
// This is the implementation of nsIX509CertList.getCertList().
nsNSSCertList*
nsNSSCertList::GetCertList()
{
return this;
}
NS_IMETHODIMP
nsNSSCertList::AddCert(nsIX509Cert* aCert)
{
if (!aCert) {
return NS_ERROR_INVALID_ARG;
}
// We need an owning handle when calling nsIX509Cert::GetCert().
UniqueCERTCertificate cert(aCert->GetCert());
if (!cert) {
NS_ERROR("Somehow got nullptr for mCertificate in nsNSSCertificate.");
return NS_ERROR_FAILURE;
}
mCerts.push_back(std::move(cert));
return NS_OK;
}
UniqueCERTCertList
nsNSSCertList::DupCertList(const UniqueCERTCertList& certList)
{
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;
}
NS_IMETHODIMP
nsNSSCertList::AsPKCS7Blob(/*out*/ nsACString& result)
{
UniqueNSSCMSMessage cmsg(NSS_CMSMessage_Create(nullptr));
if (!cmsg) {
MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
("nsNSSCertList::AsPKCS7Blob - can't create CMS message"));
return NS_ERROR_OUT_OF_MEMORY;
}
UniqueNSSCMSSignedData sigd(nullptr);
nsresult rv = ForEachCertificateInChain(
[&cmsg, &sigd] (nsCOMPtr<nsIX509Cert> aCert, bool /*unused*/,
/*out*/ bool& /*unused*/) {
// We need an owning handle when calling nsIX509Cert::GetCert().
UniqueCERTCertificate nssCert(aCert->GetCert());
if (!sigd) {
sigd.reset(NSS_CMSSignedData_CreateCertsOnly(cmsg.get(), nssCert.get(),
false));
if (!sigd) {
MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
("nsNSSCertList::AsPKCS7Blob - can't create SignedData"));
return NS_ERROR_FAILURE;
}
} else if (NSS_CMSSignedData_AddCertificate(sigd.get(), nssCert.get())
!= SECSuccess) {
MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
("nsNSSCertList::AsPKCS7Blob - can't add cert"));
return NS_ERROR_FAILURE;
}
return NS_OK;
});
if (NS_FAILED(rv)) {
return rv;
}
NSSCMSContentInfo* cinfo = NSS_CMSMessage_GetContentInfo(cmsg.get());
if (NSS_CMSContentInfo_SetContent_SignedData(cmsg.get(), cinfo, sigd.get())
!= SECSuccess) {
MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
("nsNSSCertList::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,
("nsNSSCertList::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,
("nsNSSCertList::AsPKCS7Blob - can't create encoder"));
return NS_ERROR_FAILURE;
}
if (NSS_CMSEncoder_Finish(ecx) != SECSuccess) {
MOZ_LOG(gPIPNSSLog, LogLevel::Debug,
("nsNSSCertList::AsPKCS7Blob - failed to add encoded data"));
return NS_ERROR_FAILURE;
}
result.Assign(nsDependentCSubstring(reinterpret_cast<const char*>(certP7.data),
certP7.len));
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertList::Write(nsIObjectOutputStream* aStream)
{
// Write the length of the list
nsresult rv = aStream->Write32(mCerts.size());
// Serialize each certificate
for (const auto& certRef : mCerts) {
nsCOMPtr<nsIX509Cert> cert = nsNSSCertificate::Create(certRef.get());
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)
{
uint32_t certListLen;
nsresult 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)) {
return rv;
}
nsCOMPtr<nsIX509Cert> cert = do_QueryInterface(certSupports);
if (!cert) {
return NS_ERROR_UNEXPECTED;
}
rv = AddCert(cert);
if (NS_FAILED(rv)) {
return rv;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertList::GetEnumerator(nsISimpleEnumerator** _retval)
{
nsCOMPtr<nsISimpleEnumerator> enumerator(new nsNSSCertListEnumerator(mCerts));
enumerator.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertList::Equals(nsIX509CertList* other, bool* result)
{
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;
}
nsresult
nsNSSCertList::ForEachCertificateInChain(ForEachCertOperation& aOperation)
{
nsCOMPtr<nsISimpleEnumerator> chainElt;
nsresult rv = GetEnumerator(getter_AddRefs(chainElt));
if (NS_FAILED(rv)) {
return rv;
}
// Each chain may have multiple certificates.
bool hasMore = false;
rv = chainElt->HasMoreElements(&hasMore);
if (NS_FAILED(rv)) {
return rv;
}
if (!hasMore) {
return NS_OK; // Empty lists are fine
}
do {
nsCOMPtr<nsISupports> certSupports;
rv = chainElt->GetNext(getter_AddRefs(certSupports));
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIX509Cert> cert = do_QueryInterface(certSupports, &rv);
if (NS_FAILED(rv)) {
return rv;
}
rv = chainElt->HasMoreElements(&hasMore);
if (NS_FAILED(rv)) {
return rv;
}
bool continueLoop = true;
rv = aOperation(cert, hasMore, continueLoop);
if (NS_FAILED(rv) || !continueLoop) {
return rv;
}
} while (hasMore);
return NS_OK;
}
nsresult
nsNSSCertList::SegmentCertificateChain(/* out */ nsCOMPtr<nsIX509Cert>& aRoot,
/* out */ nsCOMPtr<nsIX509CertList>& aIntermediates,
/* out */ nsCOMPtr<nsIX509Cert>& aEndEntity)
{
if (aRoot || aIntermediates || aEndEntity) {
// All passed-in nsCOMPtrs should be empty for the state machine to work
return NS_ERROR_UNEXPECTED;
}
aIntermediates = new nsNSSCertList();
nsresult rv = ForEachCertificateInChain(
[&aRoot, &aIntermediates, &aEndEntity] (nsCOMPtr<nsIX509Cert> aCert,
bool hasMore, bool& aContinue) {
if (!aEndEntity) {
// This is the end entity
aEndEntity = aCert;
} else if (!hasMore) {
// This is the root
aRoot = aCert;
} else {
// One of (potentially many) intermediates
if (NS_FAILED(aIntermediates->AddCert(aCert))) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_OK;
});
if (NS_FAILED(rv)) {
return rv;
}
if (!aRoot || !aEndEntity) {
// No self-signed (or empty) chains allowed
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
nsresult
nsNSSCertList::GetRootCertificate(/* out */ nsCOMPtr<nsIX509Cert>& aRoot)
{
if (aRoot) {
return NS_ERROR_UNEXPECTED;
}
// If the list is empty, leave aRoot empty.
if (mCerts.size() < 1) {
return NS_OK;
}
const UniqueCERTCertificate& cert = mCerts.back();
// This increases the refcount on the underlying CERTCertificate, which aRoot
// will own.
aRoot = nsNSSCertificate::Create(cert.get());
if (!aRoot) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
nsNSSCertListEnumerator::nsNSSCertListEnumerator(
const std::vector<UniqueCERTCertificate>& certs)
{
mCerts.reserve(certs.size());
// Unfortunately we can't just clone the vector because we have to ensure the
// reference counts on the CERTCertificates are accurate.
for (const auto& certRef : certs) {
UniqueCERTCertificate cert(CERT_DupCertificate(certRef.get()));
mCerts.push_back(std::move(cert));
}
mPosition = mCerts.cbegin();
}
NS_IMETHODIMP
nsNSSCertListEnumerator::HasMoreElements(bool* _retval)
{
*_retval = mPosition != mCerts.cend();
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertListEnumerator::GetNext(nsISupports** _retval)
{
*_retval = nullptr;
if (mPosition == mCerts.cend()) {
return NS_ERROR_UNEXPECTED;
}
const UniqueCERTCertificate& certRef = *mPosition;
// nsNSSCertificate::Create calls nsNSSCertificate::nsNSSCertificate, which
// increases the reference count on the underlying CERTCertificate itself.
nsCOMPtr<nsIX509Cert> nssCert = nsNSSCertificate::Create(certRef.get());
if (!nssCert) {
return NS_ERROR_OUT_OF_MEMORY;
}
nssCert.forget(_retval);
mPosition++;
return NS_OK;
}
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;
}
nsCString 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(nsACString& aContractID)
{
aContractID.SetIsVoid(true);
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetClassDescription(nsACString& aClassDescription)
{
aClassDescription.SetIsVoid(true);
return NS_OK;
}
NS_IMETHODIMP
nsNSSCertificate::GetClassID(nsCID** aClassID)
{
*aClassID = (nsCID*) moz_xmalloc(sizeof(nsCID));
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;
}
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