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#include "node.h"
#include "node_buffer.h"
#include "node_crypto.h"
#include "node_crypto_bio.h"
#include "node_crypto_groups.h"
#include "tls_wrap.h" // TLSWrap
#include "async-wrap.h"
#include "async-wrap-inl.h"
#include "env.h"
#include "env-inl.h"
#include "string_bytes.h"
#include "util.h"
#include "util-inl.h"
#include "v8.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#if defined(_MSC_VER)
#define strcasecmp _stricmp
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
#define OPENSSL_CONST const
#else
#define OPENSSL_CONST
#endif
#define THROW_AND_RETURN_IF_NOT_STRING_OR_BUFFER(val) \
do { \
if (!Buffer::HasInstance(val) && !val->IsString()) { \
return env->ThrowTypeError("Not a string or buffer"); \
} \
} while (0)
#define THROW_AND_RETURN_IF_NOT_BUFFER(val) \
do { \
if (!Buffer::HasInstance(val)) { \
return env->ThrowTypeError("Not a buffer"); \
} \
} while (0)
static const char PUBLIC_KEY_PFX[] = "-----BEGIN PUBLIC KEY-----";
static const int PUBLIC_KEY_PFX_LEN = sizeof(PUBLIC_KEY_PFX) - 1;
static const char PUBRSA_KEY_PFX[] = "-----BEGIN RSA PUBLIC KEY-----";
static const int PUBRSA_KEY_PFX_LEN = sizeof(PUBRSA_KEY_PFX) - 1;
static const char CERTIFICATE_PFX[] = "-----BEGIN CERTIFICATE-----";
static const int CERTIFICATE_PFX_LEN = sizeof(CERTIFICATE_PFX) - 1;
static const int X509_NAME_FLAGS = ASN1_STRFLGS_ESC_CTRL
| ASN1_STRFLGS_UTF8_CONVERT
| XN_FLAG_SEP_MULTILINE
| XN_FLAG_FN_SN;
namespace node {
namespace crypto {
using v8::Array;
using v8::Boolean;
using v8::Context;
using v8::DEFAULT;
using v8::DontDelete;
using v8::EscapableHandleScope;
using v8::Exception;
using v8::External;
using v8::False;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::Handle;
using v8::HandleScope;
using v8::Integer;
using v8::Isolate;
using v8::Local;
using v8::Null;
using v8::Object;
using v8::Persistent;
using v8::PropertyAttribute;
using v8::PropertyCallbackInfo;
using v8::ReadOnly;
using v8::String;
using v8::V8;
using v8::Value;
// Forcibly clear OpenSSL's error stack on return. This stops stale errors
// from popping up later in the lifecycle of crypto operations where they
// would cause spurious failures. It's a rather blunt method, though.
// ERR_clear_error() isn't necessarily cheap either.
struct ClearErrorOnReturn {
~ClearErrorOnReturn() { ERR_clear_error(); }
};
static uv_rwlock_t* locks;
const char* const root_certs[] = {
#include "node_root_certs.h" // NOLINT(build/include_order)
};
X509_STORE* root_cert_store;
// Just to generate static methods
template class SSLWrap<TLSWrap>;
template void SSLWrap<TLSWrap>::AddMethods(Environment* env,
Handle<FunctionTemplate> t);
template void SSLWrap<TLSWrap>::InitNPN(SecureContext* sc);
template SSL_SESSION* SSLWrap<TLSWrap>::GetSessionCallback(
SSL* s,
unsigned char* key,
int len,
int* copy);
template int SSLWrap<TLSWrap>::NewSessionCallback(SSL* s,
SSL_SESSION* sess);
template void SSLWrap<TLSWrap>::OnClientHello(
void* arg,
const ClientHelloParser::ClientHello& hello);
#ifdef OPENSSL_NPN_NEGOTIATED
template int SSLWrap<TLSWrap>::AdvertiseNextProtoCallback(
SSL* s,
const unsigned char** data,
unsigned int* len,
void* arg);
template int SSLWrap<TLSWrap>::SelectNextProtoCallback(
SSL* s,
unsigned char** out,
unsigned char* outlen,
const unsigned char* in,
unsigned int inlen,
void* arg);
#endif
template int SSLWrap<TLSWrap>::TLSExtStatusCallback(SSL* s, void* arg);
static void crypto_threadid_cb(CRYPTO_THREADID* tid) {
static_assert(sizeof(uv_thread_t) <= sizeof(void*), // NOLINT(runtime/sizeof)
"uv_thread_t does not fit in a pointer");
CRYPTO_THREADID_set_pointer(tid, reinterpret_cast<void*>(uv_thread_self()));
}
static void crypto_lock_init(void) {
int i, n;
n = CRYPTO_num_locks();
locks = new uv_rwlock_t[n];
for (i = 0; i < n; i++)
if (uv_rwlock_init(locks + i))
abort();
}
static void crypto_lock_cb(int mode, int n, const char* file, int line) {
CHECK((mode & CRYPTO_LOCK) || (mode & CRYPTO_UNLOCK));
CHECK((mode & CRYPTO_READ) || (mode & CRYPTO_WRITE));
if (mode & CRYPTO_LOCK) {
if (mode & CRYPTO_READ)
uv_rwlock_rdlock(locks + n);
else
uv_rwlock_wrlock(locks + n);
} else {
if (mode & CRYPTO_READ)
uv_rwlock_rdunlock(locks + n);
else
uv_rwlock_wrunlock(locks + n);
}
}
static int CryptoPemCallback(char *buf, int size, int rwflag, void *u) {
if (u) {
size_t buflen = static_cast<size_t>(size);
size_t len = strlen(static_cast<const char*>(u));
len = len > buflen ? buflen : len;
memcpy(buf, u, len);
return len;
}
return 0;
}
void ThrowCryptoError(Environment* env,
unsigned long err,
const char* default_message = nullptr) {
HandleScope scope(env->isolate());
if (err != 0 || default_message == nullptr) {
char errmsg[128] = { 0 };
ERR_error_string_n(err, errmsg, sizeof(errmsg));
env->ThrowError(errmsg);
} else {
env->ThrowError(default_message);
}
}
// Ensure that OpenSSL has enough entropy (at least 256 bits) for its PRNG.
// The entropy pool starts out empty and needs to fill up before the PRNG
// can be used securely. Once the pool is filled, it never dries up again;
// its contents is stirred and reused when necessary.
//
// OpenSSL normally fills the pool automatically but not when someone starts
// generating random numbers before the pool is full: in that case OpenSSL
// keeps lowering the entropy estimate to thwart attackers trying to guess
// the initial state of the PRNG.
//
// When that happens, we will have to wait until enough entropy is available.
// That should normally never take longer than a few milliseconds.
//
// OpenSSL draws from /dev/random and /dev/urandom. While /dev/random may
// block pending "true" randomness, /dev/urandom is a CSPRNG that doesn't
// block under normal circumstances.
//
// The only time when /dev/urandom may conceivably block is right after boot,
// when the whole system is still low on entropy. That's not something we can
// do anything about.
inline void CheckEntropy() {
for (;;) {
int status = RAND_status();
CHECK_GE(status, 0); // Cannot fail.
if (status != 0)
break;
// Give up, RAND_poll() not supported.
if (RAND_poll() == 0)
break;
}
}
bool EntropySource(unsigned char* buffer, size_t length) {
// Ensure that OpenSSL's PRNG is properly seeded.
CheckEntropy();
// RAND_bytes() can return 0 to indicate that the entropy data is not truly
// random. That's okay, it's still better than V8's stock source of entropy,
// which is /dev/urandom on UNIX platforms and the current time on Windows.
return RAND_bytes(buffer, length) != -1;
}
void SecureContext::Initialize(Environment* env, Handle<Object> target) {
Local<FunctionTemplate> t = env->NewFunctionTemplate(SecureContext::New);
t->InstanceTemplate()->SetInternalFieldCount(1);
t->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "SecureContext"));
env->SetProtoMethod(t, "init", SecureContext::Init);
env->SetProtoMethod(t, "setKey", SecureContext::SetKey);
env->SetProtoMethod(t, "setCert", SecureContext::SetCert);
env->SetProtoMethod(t, "addCACert", SecureContext::AddCACert);
env->SetProtoMethod(t, "addCRL", SecureContext::AddCRL);
env->SetProtoMethod(t, "addRootCerts", SecureContext::AddRootCerts);
env->SetProtoMethod(t, "setCiphers", SecureContext::SetCiphers);
env->SetProtoMethod(t, "setECDHCurve", SecureContext::SetECDHCurve);
env->SetProtoMethod(t, "setDHParam", SecureContext::SetDHParam);
env->SetProtoMethod(t, "setOptions", SecureContext::SetOptions);
env->SetProtoMethod(t, "setSessionIdContext",
SecureContext::SetSessionIdContext);
env->SetProtoMethod(t, "setSessionTimeout",
SecureContext::SetSessionTimeout);
env->SetProtoMethod(t, "close", SecureContext::Close);
env->SetProtoMethod(t, "loadPKCS12", SecureContext::LoadPKCS12);
env->SetProtoMethod(t, "getTicketKeys", SecureContext::GetTicketKeys);
env->SetProtoMethod(t, "setTicketKeys", SecureContext::SetTicketKeys);
env->SetProtoMethod(t, "getCertificate", SecureContext::GetCertificate<true>);
env->SetProtoMethod(t, "getIssuer", SecureContext::GetCertificate<false>);
t->PrototypeTemplate()->SetAccessor(
FIXED_ONE_BYTE_STRING(env->isolate(), "_external"),
CtxGetter,
nullptr,
env->as_external(),
DEFAULT,
static_cast<PropertyAttribute>(ReadOnly | DontDelete));
target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "SecureContext"),
t->GetFunction());
env->set_secure_context_constructor_template(t);
}
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 = Unwrap<SecureContext>(args.Holder());
Environment* env = sc->env();
OPENSSL_CONST SSL_METHOD *method = SSLv23_method();
if (args.Length() == 1 && args[0]->IsString()) {
const node::Utf8Value sslmethod(env->isolate(), args[0]);
// Note that SSLv2 and SSLv3 are disallowed but SSLv2_method and friends
// are still accepted. They are OpenSSL's way of saying that all known
// protocols are supported unless explicitly disabled (which we do below
// for SSLv2 and SSLv3.)
if (strcmp(*sslmethod, "SSLv2_method") == 0) {
return env->ThrowError("SSLv2 methods disabled");
} else if (strcmp(*sslmethod, "SSLv2_server_method") == 0) {
return env->ThrowError("SSLv2 methods disabled");
} else if (strcmp(*sslmethod, "SSLv2_client_method") == 0) {
return env->ThrowError("SSLv2 methods disabled");
} else if (strcmp(*sslmethod, "SSLv3_method") == 0) {
return env->ThrowError("SSLv3 methods disabled");
} else if (strcmp(*sslmethod, "SSLv3_server_method") == 0) {
return env->ThrowError("SSLv3 methods disabled");
} else if (strcmp(*sslmethod, "SSLv3_client_method") == 0) {
return env->ThrowError("SSLv3 methods disabled");
} else if (strcmp(*sslmethod, "SSLv23_method") == 0) {
method = SSLv23_method();
} else if (strcmp(*sslmethod, "SSLv23_server_method") == 0) {
method = SSLv23_server_method();
} else if (strcmp(*sslmethod, "SSLv23_client_method") == 0) {
method = SSLv23_client_method();
} else if (strcmp(*sslmethod, "TLSv1_method") == 0) {
method = TLSv1_method();
} else if (strcmp(*sslmethod, "TLSv1_server_method") == 0) {
method = TLSv1_server_method();
} else if (strcmp(*sslmethod, "TLSv1_client_method") == 0) {
method = TLSv1_client_method();
} else if (strcmp(*sslmethod, "TLSv1_1_method") == 0) {
method = TLSv1_1_method();
} else if (strcmp(*sslmethod, "TLSv1_1_server_method") == 0) {
method = TLSv1_1_server_method();
} else if (strcmp(*sslmethod, "TLSv1_1_client_method") == 0) {
method = TLSv1_1_client_method();
} else if (strcmp(*sslmethod, "TLSv1_2_method") == 0) {
method = TLSv1_2_method();
} else if (strcmp(*sslmethod, "TLSv1_2_server_method") == 0) {
method = TLSv1_2_server_method();
} else if (strcmp(*sslmethod, "TLSv1_2_client_method") == 0) {
method = TLSv1_2_client_method();
} else {
return env->ThrowError("Unknown method");
}
}
sc->ctx_ = SSL_CTX_new(method);
// Disable SSLv2 in the case when method == SSLv23_method() and the
// cipher list contains SSLv2 ciphers (not the default, should be rare.)
// The bundled OpenSSL doesn't have SSLv2 support but the system OpenSSL may.
// SSLv3 is disabled because it's susceptible to downgrade attacks (POODLE.)
SSL_CTX_set_options(sc->ctx_, SSL_OP_NO_SSLv2);
SSL_CTX_set_options(sc->ctx_, SSL_OP_NO_SSLv3);
// SSL session cache configuration
SSL_CTX_set_session_cache_mode(sc->ctx_,
SSL_SESS_CACHE_SERVER |
SSL_SESS_CACHE_NO_INTERNAL |
SSL_SESS_CACHE_NO_AUTO_CLEAR);
SSL_CTX_sess_set_get_cb(sc->ctx_, SSLWrap<Connection>::GetSessionCallback);
SSL_CTX_sess_set_new_cb(sc->ctx_, SSLWrap<Connection>::NewSessionCallback);
sc->ca_store_ = nullptr;
}
// Takes a string or buffer and loads it into a BIO.
// Caller responsible for BIO_free_all-ing the returned object.
static BIO* LoadBIO(Environment* env, Handle<Value> v) {
BIO* bio = NodeBIO::New();
if (!bio)
return nullptr;
HandleScope scope(env->isolate());
int r = -1;
if (v->IsString()) {
const node::Utf8Value s(env->isolate(), v);
r = BIO_write(bio, *s, s.length());
} else if (Buffer::HasInstance(v)) {
char* buffer_data = Buffer::Data(v);
size_t buffer_length = Buffer::Length(v);
r = BIO_write(bio, buffer_data, buffer_length);
}
if (r <= 0) {
BIO_free_all(bio);
return nullptr;
}
return bio;
}
// Takes a string or buffer and loads it into an X509
// Caller responsible for X509_free-ing the returned object.
static X509* LoadX509(Environment* env, Handle<Value> v) {
HandleScope scope(env->isolate());
BIO *bio = LoadBIO(env, v);
if (!bio)
return nullptr;
X509 * x509 = PEM_read_bio_X509(bio, nullptr, CryptoPemCallback, nullptr);
if (!x509) {
BIO_free_all(bio);
return nullptr;
}
BIO_free_all(bio);
return x509;
}
void SecureContext::SetKey(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
unsigned int len = args.Length();
if (len != 1 && len != 2) {
return env->ThrowTypeError("Bad parameter");
}
if (len == 2 && !args[1]->IsString()) {
return env->ThrowTypeError("Bad parameter");
}
BIO *bio = LoadBIO(env, args[0]);
if (!bio)
return;
node::Utf8Value passphrase(env->isolate(), args[1]);
EVP_PKEY* key = PEM_read_bio_PrivateKey(bio,
nullptr,
CryptoPemCallback,
len == 1 ? nullptr : *passphrase);
if (!key) {
BIO_free_all(bio);
unsigned long err = ERR_get_error();
if (!err) {
return env->ThrowError("PEM_read_bio_PrivateKey");
}
return ThrowCryptoError(env, err);
}
int rv = SSL_CTX_use_PrivateKey(sc->ctx_, key);
EVP_PKEY_free(key);
BIO_free_all(bio);
if (!rv) {
unsigned long err = ERR_get_error();
if (!err)
return env->ThrowError("SSL_CTX_use_PrivateKey");
return ThrowCryptoError(env, err);
}
}
int SSL_CTX_get_issuer(SSL_CTX* ctx, X509* cert, X509** issuer) {
int ret;
X509_STORE* store = SSL_CTX_get_cert_store(ctx);
X509_STORE_CTX store_ctx;
ret = X509_STORE_CTX_init(&store_ctx, store, nullptr, nullptr);
if (!ret)
goto end;
ret = X509_STORE_CTX_get1_issuer(issuer, &store_ctx, cert);
X509_STORE_CTX_cleanup(&store_ctx);
end:
return ret;
}
// 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 - editted for style.
int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
BIO* in,
X509** cert,
X509** issuer) {
int ret = 0;
X509* x = nullptr;
x = PEM_read_bio_X509_AUX(in, nullptr, CryptoPemCallback, nullptr);
if (x == nullptr) {
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
goto end;
}
ret = SSL_CTX_use_certificate(ctx, x);
if (ret) {
// If we could set up our certificate, now proceed to
// the CA certificates.
X509 *ca;
int r;
unsigned long err;
if (ctx->extra_certs != nullptr) {
sk_X509_pop_free(ctx->extra_certs, X509_free);
ctx->extra_certs = nullptr;
}
while ((ca = PEM_read_bio_X509(in, nullptr, CryptoPemCallback, nullptr))) {
r = SSL_CTX_add_extra_chain_cert(ctx, ca);
if (!r) {
X509_free(ca);
ret = 0;
goto end;
}
// 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) != X509_V_OK)
continue;
*issuer = ca;
}
// 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
ret = 0;
}
}
// Try getting issuer from a cert store
if (ret) {
if (*issuer == nullptr) {
ret = SSL_CTX_get_issuer(ctx, x, issuer);
ret = ret < 0 ? 0 : 1;
// NOTE: get_cert_store doesn't increment reference count,
// no need to free `store`
} else {
// Increment issuer reference count
CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509);
}
}
end:
if (x != nullptr)
*cert = x;
return ret;
}
void SecureContext::SetCert(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1) {
return env->ThrowTypeError("Bad parameter");
}
BIO* bio = LoadBIO(env, args[0]);
if (!bio)
return;
int rv = SSL_CTX_use_certificate_chain(sc->ctx_,
bio,
&sc->cert_,
&sc->issuer_);
BIO_free_all(bio);
if (!rv) {
unsigned long err = ERR_get_error();
if (!err) {
return env->ThrowError("SSL_CTX_use_certificate_chain");
}
return ThrowCryptoError(env, err);
}
}
void SecureContext::AddCACert(const FunctionCallbackInfo<Value>& args) {
bool newCAStore = false;
Environment* env = Environment::GetCurrent(args);
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
if (args.Length() != 1) {
return env->ThrowTypeError("Bad parameter");
}
if (!sc->ca_store_) {
sc->ca_store_ = X509_STORE_new();
newCAStore = true;
}
X509* x509 = LoadX509(env, args[0]);
if (!x509)
return;
X509_STORE_add_cert(sc->ca_store_, x509);
SSL_CTX_add_client_CA(sc->ctx_, x509);
X509_free(x509);
if (newCAStore) {
SSL_CTX_set_cert_store(sc->ctx_, sc->ca_store_);
}
}
void SecureContext::AddCRL(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1) {
return env->ThrowTypeError("Bad parameter");
}
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
BIO *bio = LoadBIO(env, args[0]);
if (!bio)
return;
X509_CRL *x509 =
PEM_read_bio_X509_CRL(bio, nullptr, CryptoPemCallback, nullptr);
if (x509 == nullptr) {
BIO_free_all(bio);
return;
}
X509_STORE_add_crl(sc->ca_store_, x509);
X509_STORE_set_flags(sc->ca_store_, X509_V_FLAG_CRL_CHECK |
X509_V_FLAG_CRL_CHECK_ALL);
BIO_free_all(bio);
X509_CRL_free(x509);
}
void SecureContext::AddRootCerts(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
CHECK_EQ(sc->ca_store_, nullptr);
if (!root_cert_store) {
root_cert_store = X509_STORE_new();
for (size_t i = 0; i < ARRAY_SIZE(root_certs); i++) {
BIO* bp = NodeBIO::New();
if (!BIO_write(bp, root_certs[i], strlen(root_certs[i]))) {
BIO_free_all(bp);
return;
}
X509 *x509 = PEM_read_bio_X509(bp, nullptr, CryptoPemCallback, nullptr);
if (x509 == nullptr) {
BIO_free_all(bp);
return;
}
X509_STORE_add_cert(root_cert_store, x509);
BIO_free_all(bp);
X509_free(x509);
}
}
sc->ca_store_ = root_cert_store;
SSL_CTX_set_cert_store(sc->ctx_, sc->ca_store_);
}
void SecureContext::SetCiphers(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
if (args.Length() != 1 || !args[0]->IsString()) {
return sc->env()->ThrowTypeError("Bad parameter");
}
const node::Utf8Value ciphers(args.GetIsolate(), args[0]);
SSL_CTX_set_cipher_list(sc->ctx_, *ciphers);
}
void SecureContext::SetECDHCurve(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
Environment* env = sc->env();
if (args.Length() != 1 || !args[0]->IsString())
return env->ThrowTypeError("First argument should be a string");
node::Utf8Value curve(env->isolate(), args[0]);
int nid = OBJ_sn2nid(*curve);
if (nid == NID_undef)
return env->ThrowTypeError("First argument should be a valid curve name");
EC_KEY* ecdh = EC_KEY_new_by_curve_name(nid);
if (ecdh == nullptr)
return env->ThrowTypeError("First argument should be a valid curve name");
SSL_CTX_set_options(sc->ctx_, SSL_OP_SINGLE_ECDH_USE);
SSL_CTX_set_tmp_ecdh(sc->ctx_, ecdh);
EC_KEY_free(ecdh);
}
void SecureContext::SetDHParam(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.This());
Environment* env = sc->env();
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
// Auto DH is not supported in openssl 1.0.1, so dhparam needs
// to be specifed explicitly
if (args.Length() != 1)
return env->ThrowTypeError("Bad parameter");
// Invalid dhparam is silently discarded and DHE is no longer used.
BIO* bio = LoadBIO(env, args[0]);
if (!bio)
return;
DH* dh = PEM_read_bio_DHparams(bio, nullptr, nullptr, nullptr);
BIO_free_all(bio);
if (dh == nullptr)
return;
SSL_CTX_set_options(sc->ctx_, SSL_OP_SINGLE_DH_USE);
int r = SSL_CTX_set_tmp_dh(sc->ctx_, dh);
DH_free(dh);
if (!r)
return env->ThrowTypeError("Error setting temp DH parameter");
}
void SecureContext::SetOptions(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IntegerValue()) {
return sc->env()->ThrowTypeError("Bad parameter");
}
SSL_CTX_set_options(sc->ctx_, static_cast<long>(args[0]->IntegerValue()));
}
void SecureContext::SetSessionIdContext(
const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IsString()) {
return sc->env()->ThrowTypeError("Bad parameter");
}
const node::Utf8Value sessionIdContext(args.GetIsolate(), args[0]);
const unsigned char* sid_ctx =
reinterpret_cast<const unsigned char*>(*sessionIdContext);
unsigned int sid_ctx_len = sessionIdContext.length();
int r = SSL_CTX_set_session_id_context(sc->ctx_, sid_ctx, sid_ctx_len);
if (r == 1)
return;
BIO* bio;
BUF_MEM* mem;
Local<String> message;
bio = BIO_new(BIO_s_mem());
if (bio == nullptr) {
message = FIXED_ONE_BYTE_STRING(args.GetIsolate(),
"SSL_CTX_set_session_id_context error");
} else {
ERR_print_errors(bio);
BIO_get_mem_ptr(bio, &mem);
message = OneByteString(args.GetIsolate(), mem->data, mem->length);
BIO_free_all(bio);
}
args.GetIsolate()->ThrowException(Exception::TypeError(message));
}
void SecureContext::SetSessionTimeout(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IsInt32()) {
return sc->env()->ThrowTypeError("Bad parameter");
}
int32_t sessionTimeout = args[0]->Int32Value();
SSL_CTX_set_timeout(sc->ctx_, sessionTimeout);
}
void SecureContext::Close(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
sc->FreeCTXMem();
}
// Takes .pfx or .p12 and password in string or buffer format
void SecureContext::LoadPKCS12(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
BIO* in = nullptr;
PKCS12* p12 = nullptr;
EVP_PKEY* pkey = nullptr;
X509* cert = nullptr;
STACK_OF(X509)* extraCerts = nullptr;
char* pass = nullptr;
bool ret = false;
SecureContext* sc = Unwrap<SecureContext>(args.Holder());
ClearErrorOnReturn clear_error_on_return;
(void) &clear_error_on_return; // Silence compiler warning.
if (args.Length() < 1) {
return env->ThrowTypeError("Bad parameter");
}
in = LoadBIO(env, args[0]);
if (in == nullptr) {
return env->ThrowError("Unable to load BIO");
}
if (args.Length() >= 2) {
THROW_AND_RETURN_IF_NOT_BUFFER(args[1]);
size_t passlen = Buffer::Length(args[1]);
pass = new char[passlen + 1];
memcpy(pass, Buffer::Data(args[1]), passlen);
pass[passlen] = '\0';
}
if (d2i_PKCS12_bio(in, &p12) &&
PKCS12_parse(p12, pass, &pkey, &cert, &extraCerts) &&
SSL_CTX_use_certificate(sc->ctx_, cert) &&
SSL_CTX_use_PrivateKey(sc->ctx_, pkey)) {
// set extra certs
while (X509* x509 = sk_X509_pop(extraCerts)) {
if (!sc->ca_store_) {
sc->ca_store_ = X509_STORE_new();
SSL_CTX_set_cert_store(sc->ctx_, sc->ca_store_);
}
X509_STORE_add_cert(sc->ca_store_, x509);
SSL_CTX_add_client_CA(sc->ctx_, x509);
X509_free(x509);
}
EVP_PKEY_free(pkey);
X509_free(cert);
sk_X509_free(extraCerts);
ret = true;
}
PKCS12_free(p12);
BIO_free_all(in);
delete[] pass;
if (!ret) {
unsigned long err = ERR_get_error();
const char* str = ERR_reason_error_string(err);
return env->ThrowError(str);
}
}
void SecureContext::GetTicketKeys(const FunctionCallbackInfo<Value>& args) {
#if !defined(OPENSSL_NO_TLSEXT) && defined(SSL_CTX_get_tlsext_ticket_keys)
SecureContext* wrap = Unwrap<SecureContext>(args.Holder());
Local<Object> buff = Buffer::New(wrap->env(), 48);
if (SSL_CTX_get_tlsext_ticket_keys(wrap->ctx_,
Buffer::Data(buff),
Buffer::Length(buff)) != 1) {
return wrap->env()->ThrowError("Failed to fetch tls ticket keys");
}
args.GetReturnValue().Set(buff);
#endif // !def(OPENSSL_NO_TLSEXT) && def(SSL_CTX_get_tlsext_ticket_keys)
}
void SecureContext::SetTicketKeys(const FunctionCallbackInfo<Value>& args) {
#if !defined(OPENSSL_NO_TLSEXT) && defined(SSL_CTX_get_tlsext_ticket_keys)
SecureContext* wrap = Unwrap<SecureContext>(args.Holder());
if (args.Length() < 1 ||
!Buffer::HasInstance(args[0]) ||
Buffer::Length(args[0]) != 48) {
return wrap->env()->ThrowTypeError("Bad argument");
}
if (SSL_CTX_set_tlsext_ticket_keys(wrap->ctx_,
Buffer::Data(args[0]),
Buffer::Length(args[0])) != 1) {
return wrap->env()->ThrowError("Failed to fetch tls ticket keys");
}
args.GetReturnValue().Set(true);
#endif // !def(OPENSSL_NO_TLSEXT) && def(SSL_CTX_get_tlsext_ticket_keys)
}
void SecureContext::CtxGetter(Local<String> property,
const PropertyCallbackInfo<Value>& info) {
HandleScope scope(info.GetIsolate());
SSL_CTX* ctx = Unwrap<SecureContext>(info.Holder())->ctx_;
Local<External> ext = External::New(info.GetIsolate(), ctx);
info.GetReturnValue().Set(ext);
}
template <bool primary>
void SecureContext::GetCertificate(const FunctionCallbackInfo<Value>& args) {
SecureContext* wrap = Unwrap<SecureContext>(args.Holder());
Environment* env = wrap->env();
X509* cert;
if (primary)
cert = wrap->cert_;
else
cert = wrap->issuer_;
if (cert == nullptr)
return args.GetReturnValue().Set(Null(env->isolate()));
int size = i2d_X509(cert, nullptr);
Local<Object> buff = Buffer::New(env, size);
unsigned char* serialized = reinterpret_cast<unsigned char*>(
Buffer::Data(buff));
i2d_X509(cert, &serialized);
args.GetReturnValue().Set(buff);
}
template <class Base>
void SSLWrap<Base>::AddMethods(Environment* env, Handle<FunctionTemplate> t) {
HandleScope scope(env->isolate());
env->SetProtoMethod(t, "getPeerCertificate", GetPeerCertificate);
env->SetProtoMethod(t, "getSession", GetSession);
env->SetProtoMethod(t, "setSession", SetSession);
env->SetProtoMethod(t, "loadSession", LoadSession);
env->SetProtoMethod(t, "isSessionReused", IsSessionReused);
env->SetProtoMethod(t, "isInitFinished", IsInitFinished);
env->SetProtoMethod(t, "verifyError", VerifyError);
env->SetProtoMethod(t, "getCurrentCipher", GetCurrentCipher);
env->SetProtoMethod(t, "endParser", EndParser);
env->SetProtoMethod(t, "renegotiate", Renegotiate);
env->SetProtoMethod(t, "shutdownSSL", Shutdown);
env->SetProtoMethod(t, "getTLSTicket", GetTLSTicket);
env->SetProtoMethod(t, "newSessionDone", NewSessionDone);
env->SetProtoMethod(t, "setOCSPResponse", SetOCSPResponse);
env->SetProtoMethod(t, "requestOCSP", RequestOCSP);
#ifdef SSL_set_max_send_fragment
env->SetProtoMethod(t, "setMaxSendFragment", SetMaxSendFragment);
#endif // SSL_set_max_send_fragment
#ifdef OPENSSL_NPN_NEGOTIATED
env->SetProtoMethod(t, "getNegotiatedProtocol", GetNegotiatedProto);
#endif // OPENSSL_NPN_NEGOTIATED
#ifdef OPENSSL_NPN_NEGOTIATED
env->SetProtoMethod(t, "setNPNProtocols", SetNPNProtocols);
#endif
t->PrototypeTemplate()->SetAccessor(