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crypto_context.cc
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#include "crypto/crypto_context.h"
#include "base_object-inl.h"
#include "crypto/crypto_bio.h"
#include "crypto/crypto_common.h"
#include "crypto/crypto_util.h"
#include "env-inl.h"
#include "memory_tracker-inl.h"
#include "ncrypto.h"
#include "node.h"
#include "node_buffer.h"
#include "node_options.h"
#include "util.h"
#include "v8.h"
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif // !OPENSSL_NO_ENGINE
#ifdef __APPLE__
#include <Security/Security.h>
#endif
#ifdef _WIN32
#include <Windows.h>
#include <wincrypt.h>
#endif
namespace node {
using ncrypto::BignumPointer;
using ncrypto::BIOPointer;
using ncrypto::ClearErrorOnReturn;
using ncrypto::CryptoErrorList;
using ncrypto::DHPointer;
using ncrypto::EnginePointer;
using ncrypto::EVPKeyPointer;
using ncrypto::MarkPopErrorOnReturn;
using ncrypto::SSLPointer;
using ncrypto::StackOfX509;
using ncrypto::X509Pointer;
using ncrypto::X509View;
using v8::Array;
using v8::ArrayBufferView;
using v8::Boolean;
using v8::Context;
using v8::DontDelete;
using v8::Exception;
using v8::External;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::HandleScope;
using v8::Int32;
using v8::Integer;
using v8::Isolate;
using v8::JustVoid;
using v8::Local;
using v8::Maybe;
using v8::Nothing;
using v8::Object;
using v8::PropertyAttribute;
using v8::ReadOnly;
using v8::Signature;
using v8::String;
using v8::Value;
namespace crypto {
static const char* const root_certs[] = {
#include "node_root_certs.h" // NOLINT(build/include_order)
};
static const char system_cert_path[] = NODE_OPENSSL_SYSTEM_CERT_PATH;
static std::string extra_root_certs_file; // NOLINT(runtime/string)
X509_STORE* GetOrCreateRootCertStore() {
// Guaranteed thread-safe by standard, just don't use -fno-threadsafe-statics.
static X509_STORE* store = NewRootCertStore();
return store;
}
// Takes a string or buffer and loads it into a BIO.
// Caller responsible for BIO_free_all-ing the returned object.
BIOPointer LoadBIO(Environment* env, Local<Value> v) {
if (v->IsString() || v->IsArrayBufferView()) {
auto bio = BIOPointer::NewSecMem();
if (!bio) return {};
ByteSource bsrc = ByteSource::FromStringOrBuffer(env, v);
if (bsrc.size() > INT_MAX) return {};
int written = BIOPointer::Write(
&bio, std::string_view(bsrc.data<char>(), bsrc.size()));
if (written < 0) return {};
if (static_cast<size_t>(written) != bsrc.size()) return {};
return bio;
}
return {};
}
namespace {
int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
X509Pointer&& x,
STACK_OF(X509)* extra_certs,
X509Pointer* cert,
X509Pointer* issuer_) {
CHECK(!*issuer_);
CHECK(!*cert);
X509* issuer = nullptr;
int ret = SSL_CTX_use_certificate(ctx, x.get());
if (ret) {
// If we could set up our certificate, now proceed to
// the CA certificates.
SSL_CTX_clear_extra_chain_certs(ctx);
for (int i = 0; i < sk_X509_num(extra_certs); i++) {
X509* ca = sk_X509_value(extra_certs, i);
// NOTE: Increments reference count on `ca`
if (!SSL_CTX_add1_chain_cert(ctx, ca)) {
ret = 0;
issuer = nullptr;
break;
}
// Note that we must not free r if it was successfully
// added to the chain (while we must free the main
// certificate, since its reference count is increased
// by SSL_CTX_use_certificate).
// Find issuer
if (issuer != nullptr || X509_check_issued(ca, x.get()) != X509_V_OK)
continue;
issuer = ca;
}
}
// Try getting issuer from a cert store
if (ret) {
if (issuer == nullptr) {
// TODO(tniessen): SSL_CTX_get_issuer does not allow the caller to
// distinguish between a failed operation and an empty result. Fix that
// and then handle the potential error properly here (set ret to 0).
*issuer_ = X509Pointer::IssuerFrom(ctx, x.view());
// NOTE: get_cert_store doesn't increment reference count,
// no need to free `store`
} else {
// Increment issuer reference count
issuer_->reset(X509_dup(issuer));
if (!*issuer_) {
ret = 0;
}
}
}
if (ret && x != nullptr) {
cert->reset(X509_dup(x.get()));
if (!*cert)
ret = 0;
}
return ret;
}
} // namespace
// Read a file that contains our certificate in "PEM" format,
// possibly followed by a sequence of CA certificates that should be
// sent to the peer in the Certificate message.
//
// Taken from OpenSSL - edited for style.
int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
BIOPointer&& in,
X509Pointer* cert,
X509Pointer* issuer) {
// Just to ensure that `ERR_peek_last_error` below will return only errors
// that we are interested in
ERR_clear_error();
X509Pointer x(
PEM_read_bio_X509_AUX(in.get(), nullptr, NoPasswordCallback, nullptr));
if (!x)
return 0;
unsigned long err = 0; // NOLINT(runtime/int)
StackOfX509 extra_certs(sk_X509_new_null());
if (!extra_certs)
return 0;
while (X509Pointer extra {PEM_read_bio_X509(in.get(),
nullptr,
NoPasswordCallback,
nullptr)}) {
if (sk_X509_push(extra_certs.get(), extra.get())) {
extra.release();
continue;
}
return 0;
}
// When the while loop ends, it's usually just EOF.
err = ERR_peek_last_error();
if (ERR_GET_LIB(err) == ERR_LIB_PEM &&
ERR_GET_REASON(err) == PEM_R_NO_START_LINE) {
ERR_clear_error();
} else {
// some real error
return 0;
}
return SSL_CTX_use_certificate_chain(ctx,
std::move(x),
extra_certs.get(),
cert,
issuer);
}
unsigned long LoadCertsFromFile( // NOLINT(runtime/int)
std::vector<X509*>* certs,
const char* file) {
MarkPopErrorOnReturn mark_pop_error_on_return;
auto bio = BIOPointer::NewFile(file, "r");
if (!bio) return ERR_get_error();
while (X509* x509 = PEM_read_bio_X509(
bio.get(), nullptr, NoPasswordCallback, nullptr)) {
certs->push_back(x509);
}
unsigned long err = ERR_peek_last_error(); // NOLINT(runtime/int)
// Ignore error if its EOF/no start line found.
if (ERR_GET_LIB(err) == ERR_LIB_PEM &&
ERR_GET_REASON(err) == PEM_R_NO_START_LINE) {
return 0;
} else {
return err;
}
}
// Indicates the trust status of a certificate.
enum class TrustStatus {
// Trust status is unknown / uninitialized.
UNKNOWN,
// Certificate inherits trust value from its issuer. If the certificate is the
// root of the chain, this implies distrust.
UNSPECIFIED,
// Certificate is a trust anchor.
TRUSTED,
// Certificate is blocked / explicitly distrusted.
DISTRUSTED
};
bool isSelfIssued(X509* cert) {
auto subject = X509_get_subject_name(cert);
auto issuer = X509_get_issuer_name(cert);
return X509_NAME_cmp(subject, issuer) == 0;
}
// TODO(joyeecheung): it is a bit excessive to do this X509 -> PEM -> X509
// dance when we could've just pass everything around in binary. Change the
// root_certs to be embedded as DER so that we can save the serialization
// and deserialization.
void X509VectorToPEMVector(const std::vector<X509Pointer>& src,
std::vector<std::string>* dest) {
for (size_t i = 0; i < src.size(); i++) {
X509View x509_view(src[i].get());
auto pem_bio = x509_view.toPEM();
if (!pem_bio) {
fprintf(stderr,
"Warning: converting system certificate to PEM format failed\n");
continue;
}
char* pem_data = nullptr;
auto pem_size = BIO_get_mem_data(pem_bio.get(), &pem_data);
if (pem_size <= 0 || !pem_data) {
fprintf(
stderr,
"Warning: cannot read PEM-encoded data from system certificate\n");
continue;
}
dest->emplace_back(pem_data, pem_size);
}
}
// The following code is loosely based on
// https://github.com/chromium/chromium/blob/54bd8e3/net/cert/internal/trust_store_mac.cc
// and
// https://github.com/chromium/chromium/blob/0192587/net/cert/internal/trust_store_win.cc
// Copyright 2015 The Chromium Authors
// Licensed under a BSD-style license
// See https://chromium.googlesource.com/chromium/src/+/HEAD/LICENSE for
// details.
#ifdef __APPLE__
TrustStatus IsTrustDictionaryTrustedForPolicy(CFDictionaryRef trust_dict,
bool is_self_issued) {
// Trust settings may be scoped to a single application
// skip as this is not supported
if (CFDictionaryContainsKey(trust_dict, kSecTrustSettingsApplication)) {
return TrustStatus::UNSPECIFIED;
}
// Trust settings may be scoped using policy-specific constraints. For
// example, SSL trust settings might be scoped to a single hostname, or EAP
// settings specific to a particular WiFi network.
// As this is not presently supported, skip any policy-specific trust
// settings.
if (CFDictionaryContainsKey(trust_dict, kSecTrustSettingsPolicyString)) {
return TrustStatus::UNSPECIFIED;
}
// If the trust settings are scoped to a specific policy (via
// kSecTrustSettingsPolicy), ensure that the policy is the same policy as
// |kSecPolicyAppleSSL|. If there is no kSecTrustSettingsPolicy key, it's
// considered a match for all policies.
if (CFDictionaryContainsKey(trust_dict, kSecTrustSettingsPolicy)) {
SecPolicyRef policy_ref = reinterpret_cast<SecPolicyRef>(const_cast<void*>(
CFDictionaryGetValue(trust_dict, kSecTrustSettingsPolicy)));
if (!policy_ref) {
return TrustStatus::UNSPECIFIED;
}
CFDictionaryRef policy_dict(SecPolicyCopyProperties(policy_ref));
// kSecPolicyOid is guaranteed to be present in the policy dictionary.
CFStringRef policy_oid = reinterpret_cast<CFStringRef>(
const_cast<void*>(CFDictionaryGetValue(policy_dict, kSecPolicyOid)));
if (!CFEqual(policy_oid, kSecPolicyAppleSSL)) {
return TrustStatus::UNSPECIFIED;
}
}
int trust_settings_result = kSecTrustSettingsResultTrustRoot;
if (CFDictionaryContainsKey(trust_dict, kSecTrustSettingsResult)) {
CFNumberRef trust_settings_result_ref =
reinterpret_cast<CFNumberRef>(const_cast<void*>(
CFDictionaryGetValue(trust_dict, kSecTrustSettingsResult)));
if (!trust_settings_result_ref ||
!CFNumberGetValue(trust_settings_result_ref,
kCFNumberIntType,
&trust_settings_result)) {
return TrustStatus::UNSPECIFIED;
}
if (trust_settings_result == kSecTrustSettingsResultDeny) {
return TrustStatus::DISTRUSTED;
}
// This is a bit of a hack: if the cert is self-issued allow either
// kSecTrustSettingsResultTrustRoot or kSecTrustSettingsResultTrustAsRoot on
// the basis that SecTrustSetTrustSettings should not allow creating an
// invalid trust record in the first place. (The spec is that
// kSecTrustSettingsResultTrustRoot can only be applied to root(self-signed)
// certs and kSecTrustSettingsResultTrustAsRoot is used for other certs.)
// This hack avoids having to check the signature on the cert which is slow
// if using the platform APIs, and may require supporting MD5 signature
// algorithms on some older OSX versions or locally added roots, which is
// undesirable in the built-in signature verifier.
if (is_self_issued) {
return trust_settings_result == kSecTrustSettingsResultTrustRoot ||
trust_settings_result == kSecTrustSettingsResultTrustAsRoot
? TrustStatus::TRUSTED
: TrustStatus::UNSPECIFIED;
}
// kSecTrustSettingsResultTrustAsRoot can only be applied to non-root certs.
return (trust_settings_result == kSecTrustSettingsResultTrustAsRoot)
? TrustStatus::TRUSTED
: TrustStatus::UNSPECIFIED;
}
return TrustStatus::UNSPECIFIED;
}
TrustStatus IsTrustSettingsTrustedForPolicy(CFArrayRef trust_settings,
bool is_self_issued) {
// The trust_settings parameter can return a valid but empty CFArrayRef.
// This empty trust-settings array means “always trust this certificate”
// with an overall trust setting for the certificate of
// kSecTrustSettingsResultTrustRoot
if (CFArrayGetCount(trust_settings) == 0) {
return is_self_issued ? TrustStatus::TRUSTED : TrustStatus::UNSPECIFIED;
}
for (CFIndex i = 0; i < CFArrayGetCount(trust_settings); ++i) {
CFDictionaryRef trust_dict = reinterpret_cast<CFDictionaryRef>(
const_cast<void*>(CFArrayGetValueAtIndex(trust_settings, i)));
TrustStatus trust =
IsTrustDictionaryTrustedForPolicy(trust_dict, is_self_issued);
if (trust == TrustStatus::DISTRUSTED || trust == TrustStatus::TRUSTED) {
return trust;
}
}
return TrustStatus::UNSPECIFIED;
}
bool IsCertificateTrustValid(SecCertificateRef ref) {
SecTrustRef sec_trust = nullptr;
CFMutableArrayRef subj_certs =
CFArrayCreateMutable(nullptr, 1, &kCFTypeArrayCallBacks);
CFArraySetValueAtIndex(subj_certs, 0, ref);
SecPolicyRef policy = SecPolicyCreateSSL(false, nullptr);
OSStatus ortn =
SecTrustCreateWithCertificates(subj_certs, policy, &sec_trust);
bool result = false;
if (ortn) {
/* should never happen */
} else {
result = SecTrustEvaluateWithError(sec_trust, nullptr);
}
if (policy) {
CFRelease(policy);
}
if (sec_trust) {
CFRelease(sec_trust);
}
if (subj_certs) {
CFRelease(subj_certs);
}
return result;
}
bool IsCertificateTrustedForPolicy(X509* cert, SecCertificateRef ref) {
OSStatus err;
bool trust_evaluated = false;
bool is_self_issued = isSelfIssued(cert);
// Evaluate user trust domain, then admin. User settings can override
// admin (and both override the system domain, but we don't check that).
for (const auto& trust_domain :
{kSecTrustSettingsDomainUser, kSecTrustSettingsDomainAdmin}) {
CFArrayRef trust_settings = nullptr;
err = SecTrustSettingsCopyTrustSettings(ref, trust_domain, &trust_settings);
if (err != errSecSuccess && err != errSecItemNotFound) {
fprintf(stderr,
"ERROR: failed to copy trust settings of system certificate%d\n",
err);
continue;
}
if (err == errSecSuccess && trust_settings != nullptr) {
TrustStatus result =
IsTrustSettingsTrustedForPolicy(trust_settings, is_self_issued);
if (result != TrustStatus::UNSPECIFIED) {
CFRelease(trust_settings);
return result == TrustStatus::TRUSTED;
}
}
// An empty trust settings array isn’t the same as no trust settings,
// where the trust_settings parameter returns NULL.
// No trust-settings array means
// “this certificate must be verifiable using a known trusted certificate”.
if (trust_settings == nullptr && !trust_evaluated) {
bool result = IsCertificateTrustValid(ref);
if (result) {
return true;
}
// no point re-evaluating this in the admin domain
trust_evaluated = true;
} else if (trust_settings) {
CFRelease(trust_settings);
}
}
return false;
}
void ReadMacOSKeychainCertificates(
std::vector<std::string>* system_root_certificates) {
CFTypeRef search_keys[] = {kSecClass, kSecMatchLimit, kSecReturnRef};
CFTypeRef search_values[] = {
kSecClassCertificate, kSecMatchLimitAll, kCFBooleanTrue};
CFDictionaryRef search = CFDictionaryCreate(kCFAllocatorDefault,
search_keys,
search_values,
3,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFArrayRef curr_anchors = nullptr;
OSStatus ortn =
SecItemCopyMatching(search, reinterpret_cast<CFTypeRef*>(&curr_anchors));
CFRelease(search);
if (ortn) {
fprintf(stderr, "ERROR: SecItemCopyMatching failed %d\n", ortn);
}
CFIndex count = CFArrayGetCount(curr_anchors);
std::vector<X509Pointer> system_root_certificates_X509;
for (int i = 0; i < count; ++i) {
SecCertificateRef cert_ref = reinterpret_cast<SecCertificateRef>(
const_cast<void*>(CFArrayGetValueAtIndex(curr_anchors, i)));
CFDataRef der_data = SecCertificateCopyData(cert_ref);
if (!der_data) {
fprintf(stderr, "ERROR: SecCertificateCopyData failed\n");
continue;
}
auto data_buffer_pointer = CFDataGetBytePtr(der_data);
X509* cert =
d2i_X509(nullptr, &data_buffer_pointer, CFDataGetLength(der_data));
CFRelease(der_data);
bool is_valid = IsCertificateTrustedForPolicy(cert, cert_ref);
if (is_valid) {
system_root_certificates_X509.emplace_back(cert);
}
}
CFRelease(curr_anchors);
X509VectorToPEMVector(system_root_certificates_X509,
system_root_certificates);
}
#endif // __APPLE__
#ifdef _WIN32
// Returns true if the cert can be used for server authentication, based on
// certificate properties.
//
// While there are a variety of certificate properties that can affect how
// trust is computed, the main property is CERT_ENHKEY_USAGE_PROP_ID, which
// is intersected with the certificate's EKU extension (if present).
// The intersection is documented in the Remarks section of
// CertGetEnhancedKeyUsage, and is as follows:
// - No EKU property, and no EKU extension = Trusted for all purpose
// - Either an EKU property, or EKU extension, but not both = Trusted only
// for the listed purposes
// - Both an EKU property and an EKU extension = Trusted for the set
// intersection of the listed purposes
// CertGetEnhancedKeyUsage handles this logic, and if an empty set is
// returned, the distinction between the first and third case can be
// determined by GetLastError() returning CRYPT_E_NOT_FOUND.
//
// See:
// https://docs.microsoft.com/en-us/windows/win32/api/wincrypt/nf-wincrypt-certgetenhancedkeyusage
//
// If we run into any errors reading the certificate properties, we fail
// closed.
bool IsCertTrustedForServerAuth(PCCERT_CONTEXT cert) {
DWORD usage_size = 0;
if (!CertGetEnhancedKeyUsage(cert, 0, nullptr, &usage_size)) {
return false;
}
std::vector<BYTE> usage_bytes(usage_size);
CERT_ENHKEY_USAGE* usage =
reinterpret_cast<CERT_ENHKEY_USAGE*>(usage_bytes.data());
if (!CertGetEnhancedKeyUsage(cert, 0, usage, &usage_size)) {
return false;
}
if (usage->cUsageIdentifier == 0) {
// check GetLastError
HRESULT error_code = GetLastError();
switch (error_code) {
case CRYPT_E_NOT_FOUND:
return true;
case S_OK:
return false;
default:
return false;
}
}
// SAFETY: `usage->rgpszUsageIdentifier` is an array of LPSTR (pointer to null
// terminated string) of length `usage->cUsageIdentifier`.
for (DWORD i = 0; i < usage->cUsageIdentifier; ++i) {
std::string_view eku(usage->rgpszUsageIdentifier[i]);
if ((eku == szOID_PKIX_KP_SERVER_AUTH) ||
(eku == szOID_ANY_ENHANCED_KEY_USAGE)) {
return true;
}
}
return false;
}
void GatherCertsForLocation(std::vector<X509Pointer>* vector,
DWORD location,
LPCWSTR store_name) {
if (!(location == CERT_SYSTEM_STORE_LOCAL_MACHINE ||
location == CERT_SYSTEM_STORE_LOCAL_MACHINE_GROUP_POLICY ||
location == CERT_SYSTEM_STORE_LOCAL_MACHINE_ENTERPRISE ||
location == CERT_SYSTEM_STORE_CURRENT_USER ||
location == CERT_SYSTEM_STORE_CURRENT_USER_GROUP_POLICY)) {
return;
}
DWORD flags =
location | CERT_STORE_OPEN_EXISTING_FLAG | CERT_STORE_READONLY_FLAG;
HCERTSTORE opened_store(
CertOpenStore(CERT_STORE_PROV_SYSTEM,
0,
// The Windows API only accepts NULL for hCryptProv.
NULL, /* NOLINT (readability/null_usage) */
flags,
store_name));
if (!opened_store) {
return;
}
auto cleanup = OnScopeLeave(
[opened_store]() { CHECK_EQ(CertCloseStore(opened_store, 0), TRUE); });
PCCERT_CONTEXT cert_from_store = nullptr;
while ((cert_from_store = CertEnumCertificatesInStore(
opened_store, cert_from_store)) != nullptr) {
if (!IsCertTrustedForServerAuth(cert_from_store)) {
continue;
}
const unsigned char* cert_data =
reinterpret_cast<const unsigned char*>(cert_from_store->pbCertEncoded);
const size_t cert_size = cert_from_store->cbCertEncoded;
vector->emplace_back(d2i_X509(nullptr, &cert_data, cert_size));
}
}
void ReadWindowsCertificates(
std::vector<std::string>* system_root_certificates) {
std::vector<X509Pointer> system_root_certificates_X509;
// TODO(joyeecheung): match Chromium's policy, collect more certificates
// from user-added CAs and support disallowed (revoked) certificates.
// Grab the user-added roots.
GatherCertsForLocation(
&system_root_certificates_X509, CERT_SYSTEM_STORE_LOCAL_MACHINE, L"ROOT");
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_LOCAL_MACHINE_GROUP_POLICY,
L"ROOT");
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_LOCAL_MACHINE_ENTERPRISE,
L"ROOT");
GatherCertsForLocation(
&system_root_certificates_X509, CERT_SYSTEM_STORE_CURRENT_USER, L"ROOT");
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_CURRENT_USER_GROUP_POLICY,
L"ROOT");
// Grab the user-added trusted server certs. Trusted end-entity certs are
// only allowed for server auth in the "local machine" store, but not in the
// "current user" store.
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_LOCAL_MACHINE,
L"TrustedPeople");
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_LOCAL_MACHINE_GROUP_POLICY,
L"TrustedPeople");
GatherCertsForLocation(&system_root_certificates_X509,
CERT_SYSTEM_STORE_LOCAL_MACHINE_ENTERPRISE,
L"TrustedPeople");
X509VectorToPEMVector(system_root_certificates_X509,
system_root_certificates);
}
#endif
void ReadSystemStoreCertificates(
std::vector<std::string>* system_root_certificates) {
#ifdef __APPLE__
ReadMacOSKeychainCertificates(system_root_certificates);
#endif
#ifdef _WIN32
ReadWindowsCertificates(system_root_certificates);
#endif
}
std::vector<std::string> getCombinedRootCertificates() {
std::vector<std::string> combined_root_certs;
for (size_t i = 0; i < arraysize(root_certs); i++) {
combined_root_certs.emplace_back(root_certs[i]);
}
if (per_process::cli_options->use_system_ca) {
ReadSystemStoreCertificates(&combined_root_certs);
}
return combined_root_certs;
}
X509_STORE* NewRootCertStore() {
static std::vector<X509*> root_certs_vector;
static bool root_certs_vector_loaded = false;
static Mutex root_certs_vector_mutex;
Mutex::ScopedLock lock(root_certs_vector_mutex);
if (!root_certs_vector_loaded) {
if (per_process::cli_options->ssl_openssl_cert_store == false) {
std::vector<std::string> combined_root_certs =
getCombinedRootCertificates();
for (size_t i = 0; i < combined_root_certs.size(); i++) {
X509* x509 =
PEM_read_bio_X509(NodeBIO::NewFixed(combined_root_certs[i].data(),
combined_root_certs[i].length())
.get(),
nullptr, // no re-use of X509 structure
NoPasswordCallback,
nullptr); // no callback data
// Parse errors from the built-in roots are fatal.
CHECK_NOT_NULL(x509);
root_certs_vector.push_back(x509);
}
}
if (!extra_root_certs_file.empty()) {
unsigned long err = LoadCertsFromFile( // NOLINT(runtime/int)
&root_certs_vector,
extra_root_certs_file.c_str());
if (err) {
char buf[256];
ERR_error_string_n(err, buf, sizeof(buf));
fprintf(stderr,
"Warning: Ignoring extra certs from `%s`, load failed: %s\n",
extra_root_certs_file.c_str(),
buf);
}
}
root_certs_vector_loaded = true;
}
X509_STORE* store = X509_STORE_new();
CHECK_NOT_NULL(store);
if (*system_cert_path != '\0') {
ERR_set_mark();
X509_STORE_load_locations(store, system_cert_path, nullptr);
ERR_pop_to_mark();
}
Mutex::ScopedLock cli_lock(node::per_process::cli_options_mutex);
if (per_process::cli_options->ssl_openssl_cert_store) {
CHECK_EQ(1, X509_STORE_set_default_paths(store));
}
for (X509* cert : root_certs_vector) {
CHECK_EQ(1, X509_STORE_add_cert(store, cert));
}
return store;
}
void GetRootCertificates(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
Local<Value> result[arraysize(root_certs)];
for (size_t i = 0; i < arraysize(root_certs); i++) {
if (!String::NewFromOneByte(
env->isolate(),
reinterpret_cast<const uint8_t*>(root_certs[i]))
.ToLocal(&result[i])) {
return;
}
}
args.GetReturnValue().Set(
Array::New(env->isolate(), result, arraysize(root_certs)));
}
bool SecureContext::HasInstance(Environment* env, const Local<Value>& value) {
return GetConstructorTemplate(env)->HasInstance(value);
}
Local<FunctionTemplate> SecureContext::GetConstructorTemplate(
Environment* env) {
Local<FunctionTemplate> tmpl = env->secure_context_constructor_template();
if (tmpl.IsEmpty()) {
Isolate* isolate = env->isolate();
tmpl = NewFunctionTemplate(isolate, New);
tmpl->InstanceTemplate()->SetInternalFieldCount(
SecureContext::kInternalFieldCount);
tmpl->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "SecureContext"));
SetProtoMethod(isolate, tmpl, "init", Init);
SetProtoMethod(isolate, tmpl, "setKey", SetKey);
SetProtoMethod(isolate, tmpl, "setCert", SetCert);
SetProtoMethod(isolate, tmpl, "addCACert", AddCACert);
SetProtoMethod(
isolate, tmpl, "setAllowPartialTrustChain", SetAllowPartialTrustChain);
SetProtoMethod(isolate, tmpl, "addCRL", AddCRL);
SetProtoMethod(isolate, tmpl, "addRootCerts", AddRootCerts);
SetProtoMethod(isolate, tmpl, "setCipherSuites", SetCipherSuites);
SetProtoMethod(isolate, tmpl, "setCiphers", SetCiphers);
SetProtoMethod(isolate, tmpl, "setSigalgs", SetSigalgs);
SetProtoMethod(isolate, tmpl, "setECDHCurve", SetECDHCurve);
SetProtoMethod(isolate, tmpl, "setDHParam", SetDHParam);
SetProtoMethod(isolate, tmpl, "setMaxProto", SetMaxProto);
SetProtoMethod(isolate, tmpl, "setMinProto", SetMinProto);
SetProtoMethod(isolate, tmpl, "getMaxProto", GetMaxProto);
SetProtoMethod(isolate, tmpl, "getMinProto", GetMinProto);
SetProtoMethod(isolate, tmpl, "setOptions", SetOptions);
SetProtoMethod(isolate, tmpl, "setSessionIdContext", SetSessionIdContext);
SetProtoMethod(isolate, tmpl, "setSessionTimeout", SetSessionTimeout);
SetProtoMethod(isolate, tmpl, "close", Close);
SetProtoMethod(isolate, tmpl, "loadPKCS12", LoadPKCS12);
SetProtoMethod(isolate, tmpl, "setTicketKeys", SetTicketKeys);
SetProtoMethod(
isolate, tmpl, "enableTicketKeyCallback", EnableTicketKeyCallback);
SetProtoMethodNoSideEffect(isolate, tmpl, "getTicketKeys", GetTicketKeys);
SetProtoMethodNoSideEffect(
isolate, tmpl, "getCertificate", GetCertificate<true>);
SetProtoMethodNoSideEffect(
isolate, tmpl, "getIssuer", GetCertificate<false>);
#ifndef OPENSSL_NO_ENGINE
SetProtoMethod(isolate, tmpl, "setEngineKey", SetEngineKey);
SetProtoMethod(isolate, tmpl, "setClientCertEngine", SetClientCertEngine);
#endif // !OPENSSL_NO_ENGINE
#define SET_INTEGER_CONSTANTS(name, value) \
tmpl->Set(FIXED_ONE_BYTE_STRING(isolate, name), \
Integer::NewFromUnsigned(isolate, value));
SET_INTEGER_CONSTANTS("kTicketKeyReturnIndex", kTicketKeyReturnIndex);
SET_INTEGER_CONSTANTS("kTicketKeyHMACIndex", kTicketKeyHMACIndex);
SET_INTEGER_CONSTANTS("kTicketKeyAESIndex", kTicketKeyAESIndex);
SET_INTEGER_CONSTANTS("kTicketKeyNameIndex", kTicketKeyNameIndex);
SET_INTEGER_CONSTANTS("kTicketKeyIVIndex", kTicketKeyIVIndex);
#undef SET_INTEGER_CONSTANTS
Local<FunctionTemplate> ctx_getter_templ = FunctionTemplate::New(
isolate, CtxGetter, Local<Value>(), Signature::New(isolate, tmpl));
tmpl->PrototypeTemplate()->SetAccessorProperty(
FIXED_ONE_BYTE_STRING(isolate, "_external"),
ctx_getter_templ,
Local<FunctionTemplate>(),
static_cast<PropertyAttribute>(ReadOnly | DontDelete));
env->set_secure_context_constructor_template(tmpl);
}
return tmpl;
}
void SecureContext::Initialize(Environment* env, Local<Object> target) {
Local<Context> context = env->context();
SetConstructorFunction(context,
target,
"SecureContext",
GetConstructorTemplate(env),
SetConstructorFunctionFlag::NONE);
SetMethodNoSideEffect(
context, target, "getRootCertificates", GetRootCertificates);
}
void SecureContext::RegisterExternalReferences(
ExternalReferenceRegistry* registry) {
registry->Register(New);
registry->Register(Init);
registry->Register(SetKey);
registry->Register(SetCert);
registry->Register(AddCACert);
registry->Register(AddCRL);
registry->Register(AddRootCerts);
registry->Register(SetAllowPartialTrustChain);
registry->Register(SetCipherSuites);
registry->Register(SetCiphers);
registry->Register(SetSigalgs);
registry->Register(SetECDHCurve);
registry->Register(SetDHParam);
registry->Register(SetMaxProto);
registry->Register(SetMinProto);
registry->Register(GetMaxProto);
registry->Register(GetMinProto);
registry->Register(SetOptions);
registry->Register(SetSessionIdContext);
registry->Register(SetSessionTimeout);
registry->Register(Close);
registry->Register(LoadPKCS12);
registry->Register(SetTicketKeys);
registry->Register(EnableTicketKeyCallback);
registry->Register(GetTicketKeys);
registry->Register(GetCertificate<true>);
registry->Register(GetCertificate<false>);
#ifndef OPENSSL_NO_ENGINE
registry->Register(SetEngineKey);
registry->Register(SetClientCertEngine);
#endif // !OPENSSL_NO_ENGINE
registry->Register(CtxGetter);
registry->Register(GetRootCertificates);
}
SecureContext* SecureContext::Create(Environment* env) {
Local<Object> obj;
if (!GetConstructorTemplate(env)
->InstanceTemplate()
->NewInstance(env->context()).ToLocal(&obj)) {
return nullptr;
}
return new SecureContext(env, obj);
}
SecureContext::SecureContext(Environment* env, Local<Object> wrap)
: BaseObject(env, wrap) {
MakeWeak();
env->isolate()->AdjustAmountOfExternalAllocatedMemory(kExternalSize);
}
inline void SecureContext::Reset() {
if (ctx_ != nullptr) {
env()->isolate()->AdjustAmountOfExternalAllocatedMemory(-kExternalSize);
}
ctx_.reset();
cert_.reset();
issuer_.reset();
}
SecureContext::~SecureContext() {
Reset();
}
void SecureContext::New(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
new SecureContext(env, args.This());
}
void SecureContext::Init(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc;
ASSIGN_OR_RETURN_UNWRAP(&sc, args.This());
Environment* env = sc->env();
CHECK_EQ(args.Length(), 3);
CHECK(args[1]->IsInt32());
CHECK(args[2]->IsInt32());
int min_version = args[1].As<Int32>()->Value();
int max_version = args[2].As<Int32>()->Value();
const SSL_METHOD* method = TLS_method();
if (max_version == 0)
max_version = kMaxSupportedVersion;
if (args[0]->IsString()) {
Utf8Value sslmethod(env->isolate(), args[0]);
// Note that SSLv2 and SSLv3 are disallowed but SSLv23_method and friends
// are still accepted. They are OpenSSL's way of saying that all known
// protocols below TLS 1.3 are supported unless explicitly disabled (which
// we do below for SSLv2 and SSLv3.)
if (sslmethod == "SSLv2_method" ||
sslmethod == "SSLv2_server_method" ||
sslmethod == "SSLv2_client_method") {
THROW_ERR_TLS_INVALID_PROTOCOL_METHOD(env, "SSLv2 methods disabled");
return;
} else if (sslmethod == "SSLv3_method" ||
sslmethod == "SSLv3_server_method" ||
sslmethod == "SSLv3_client_method") {
THROW_ERR_TLS_INVALID_PROTOCOL_METHOD(env, "SSLv3 methods disabled");
return;
} else if (sslmethod == "SSLv23_method") {
max_version = TLS1_2_VERSION;
} else if (sslmethod == "SSLv23_server_method") {
max_version = TLS1_2_VERSION;
method = TLS_server_method();
} else if (sslmethod == "SSLv23_client_method") {
max_version = TLS1_2_VERSION;
method = TLS_client_method();
} else if (sslmethod == "TLS_method") {
min_version = 0;
max_version = kMaxSupportedVersion;
} else if (sslmethod == "TLS_server_method") {
min_version = 0;
max_version = kMaxSupportedVersion;
method = TLS_server_method();
} else if (sslmethod == "TLS_client_method") {
min_version = 0;
max_version = kMaxSupportedVersion;
method = TLS_client_method();
} else if (sslmethod == "TLSv1_method") {
min_version = TLS1_VERSION;