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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "node_crypto.h"
#include "node_crypto_groups.h"
#include "v8.h"
#include "node.h"
#include "node_buffer.h"
#include "node_root_certs.h"
#include <string.h>
#ifdef _MSC_VER
#define strcasecmp _stricmp
#endif
#include <stdlib.h>
#include <errno.h>
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
# define OPENSSL_CONST const
#else
# define OPENSSL_CONST
#endif
#define ASSERT_IS_BUFFER(val) \
if (!Buffer::HasInstance(val)) { \
return ThrowException(Exception::TypeError(String::New("Not a buffer"))); \
}
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 int X509_NAME_FLAGS = ASN1_STRFLGS_ESC_CTRL
| ASN1_STRFLGS_ESC_MSB
| XN_FLAG_SEP_MULTILINE
| XN_FLAG_FN_SN;
namespace node {
namespace crypto {
using namespace v8;
static Persistent<String> errno_symbol;
static Persistent<String> syscall_symbol;
static Persistent<String> subject_symbol;
static Persistent<String> subjectaltname_symbol;
static Persistent<String> modulus_symbol;
static Persistent<String> exponent_symbol;
static Persistent<String> issuer_symbol;
static Persistent<String> valid_from_symbol;
static Persistent<String> valid_to_symbol;
static Persistent<String> fingerprint_symbol;
static Persistent<String> name_symbol;
static Persistent<String> version_symbol;
static Persistent<String> ext_key_usage_symbol;
static Persistent<String> onhandshakestart_sym;
static Persistent<String> onhandshakedone_sym;
static Persistent<String> onclienthello_sym;
static Persistent<String> onnewsession_sym;
static Persistent<String> sessionid_sym;
static Persistent<FunctionTemplate> secure_context_constructor;
static uv_rwlock_t* locks;
static void crypto_threadid_cb(CRYPTO_THREADID* tid) {
CRYPTO_THREADID_set_numeric(tid, 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) {
assert((mode & CRYPTO_LOCK) || (mode & CRYPTO_UNLOCK));
assert((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);
}
}
void SecureContext::Initialize(Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(SecureContext::New);
secure_context_constructor = Persistent<FunctionTemplate>::New(t);
t->InstanceTemplate()->SetInternalFieldCount(1);
t->SetClassName(String::NewSymbol("SecureContext"));
NODE_SET_PROTOTYPE_METHOD(t, "init", SecureContext::Init);
NODE_SET_PROTOTYPE_METHOD(t, "setKey", SecureContext::SetKey);
NODE_SET_PROTOTYPE_METHOD(t, "setCert", SecureContext::SetCert);
NODE_SET_PROTOTYPE_METHOD(t, "addCACert", SecureContext::AddCACert);
NODE_SET_PROTOTYPE_METHOD(t, "addCRL", SecureContext::AddCRL);
NODE_SET_PROTOTYPE_METHOD(t, "addRootCerts", SecureContext::AddRootCerts);
NODE_SET_PROTOTYPE_METHOD(t, "setCiphers", SecureContext::SetCiphers);
NODE_SET_PROTOTYPE_METHOD(t, "setOptions", SecureContext::SetOptions);
NODE_SET_PROTOTYPE_METHOD(t, "setSessionIdContext",
SecureContext::SetSessionIdContext);
NODE_SET_PROTOTYPE_METHOD(t, "close", SecureContext::Close);
NODE_SET_PROTOTYPE_METHOD(t, "loadPKCS12", SecureContext::LoadPKCS12);
target->Set(String::NewSymbol("SecureContext"), t->GetFunction());
}
Handle<Value> SecureContext::New(const Arguments& args) {
HandleScope scope;
SecureContext *p = new SecureContext();
p->Wrap(args.Holder());
return args.This();
}
Handle<Value> SecureContext::Init(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
OPENSSL_CONST SSL_METHOD *method = SSLv23_method();
if (args.Length() == 1 && args[0]->IsString()) {
String::Utf8Value sslmethod(args[0]);
if (strcmp(*sslmethod, "SSLv2_method") == 0) {
#ifndef OPENSSL_NO_SSL2
method = SSLv2_method();
#else
return ThrowException(Exception::Error(String::New("SSLv2 methods disabled")));
#endif
} else if (strcmp(*sslmethod, "SSLv2_server_method") == 0) {
#ifndef OPENSSL_NO_SSL2
method = SSLv2_server_method();
#else
return ThrowException(Exception::Error(String::New("SSLv2 methods disabled")));
#endif
} else if (strcmp(*sslmethod, "SSLv2_client_method") == 0) {
#ifndef OPENSSL_NO_SSL2
method = SSLv2_client_method();
#else
return ThrowException(Exception::Error(String::New("SSLv2 methods disabled")));
#endif
} else if (strcmp(*sslmethod, "SSLv3_method") == 0) {
method = SSLv3_method();
} else if (strcmp(*sslmethod, "SSLv3_server_method") == 0) {
method = SSLv3_server_method();
} else if (strcmp(*sslmethod, "SSLv3_client_method") == 0) {
method = SSLv3_client_method();
} 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 {
return ThrowException(Exception::Error(String::New("Unknown method")));
}
}
sc->ctx_ = SSL_CTX_new(method);
// 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_, GetSessionCallback);
SSL_CTX_sess_set_new_cb(sc->ctx_, NewSessionCallback);
sc->ca_store_ = NULL;
return True();
}
SSL_SESSION* SecureContext::GetSessionCallback(SSL* s,
unsigned char* key,
int len,
int* copy) {
HandleScope scope;
Connection* p = static_cast<Connection*>(SSL_get_app_data(s));
*copy = 0;
SSL_SESSION* sess = p->next_sess_;
p->next_sess_ = NULL;
return sess;
}
void SessionDataFree(char* data, void* hint) {
delete[] data;
}
int SecureContext::NewSessionCallback(SSL* s, SSL_SESSION* sess) {
HandleScope scope;
Connection* p = static_cast<Connection*>(SSL_get_app_data(s));
// Check if session is small enough to be stored
int size = i2d_SSL_SESSION(sess, NULL);
if (size > kMaxSessionSize) return 0;
// Serialize session
char* serialized = new char[size];
unsigned char* pserialized = reinterpret_cast<unsigned char*>(serialized);
memset(serialized, 0, size);
i2d_SSL_SESSION(sess, &pserialized);
Handle<Value> argv[2] = {
Buffer::New(reinterpret_cast<char*>(sess->session_id),
sess->session_id_length)->handle_,
Buffer::New(serialized, size, SessionDataFree, NULL)->handle_
};
if (onnewsession_sym.IsEmpty()) {
onnewsession_sym = NODE_PSYMBOL("onnewsession");
}
MakeCallback(p->handle_, onnewsession_sym, ARRAY_SIZE(argv), argv);
return 0;
}
// Takes a string or buffer and loads it into a BIO.
// Caller responsible for BIO_free-ing the returned object.
static BIO* LoadBIO (Handle<Value> v) {
BIO *bio = BIO_new(BIO_s_mem());
if (!bio) return NULL;
HandleScope scope;
int r = -1;
if (v->IsString()) {
String::Utf8Value s(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(bio);
return NULL;
}
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 (Handle<Value> v) {
HandleScope scope; // necessary?
BIO *bio = LoadBIO(v);
if (!bio) return NULL;
X509 * x509 = PEM_read_bio_X509(bio, NULL, NULL, NULL);
if (!x509) {
BIO_free(bio);
return NULL;
}
BIO_free(bio);
return x509;
}
Handle<Value> SecureContext::SetKey(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
unsigned int len = args.Length();
if (len != 1 && len != 2) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
if (len == 2 && !args[1]->IsString()) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
BIO *bio = LoadBIO(args[0]);
if (!bio) return False();
String::Utf8Value passphrase(args[1]);
EVP_PKEY* key = PEM_read_bio_PrivateKey(bio, NULL, NULL,
len == 1 ? NULL : *passphrase);
if (!key) {
BIO_free(bio);
unsigned long err = ERR_get_error();
if (!err) {
return ThrowException(Exception::Error(
String::New("PEM_read_bio_PrivateKey")));
}
char string[120];
ERR_error_string_n(err, string, sizeof string);
return ThrowException(Exception::Error(String::New(string)));
}
SSL_CTX_use_PrivateKey(sc->ctx_, key);
EVP_PKEY_free(key);
BIO_free(bio);
return True();
}
// 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) {
int ret = 0;
X509 *x = NULL;
x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
if (x == NULL) {
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
goto end;
}
ret = SSL_CTX_use_certificate(ctx, x);
if (ERR_peek_error() != 0) {
// Key/certificate mismatch doesn't imply ret==0 ...
ret = 0;
}
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 != NULL) {
sk_X509_pop_free(ctx->extra_certs, X509_free);
ctx->extra_certs = NULL;
}
while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
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).
}
// 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;
}
}
end:
if (x != NULL) X509_free(x);
return ret;
}
Handle<Value> SecureContext::SetCert(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1) {
return ThrowException(Exception::TypeError(
String::New("Bad parameter")));
}
BIO* bio = LoadBIO(args[0]);
if (!bio) return False();
int rv = SSL_CTX_use_certificate_chain(sc->ctx_, bio);
BIO_free(bio);
if (!rv) {
unsigned long err = ERR_get_error();
if (!err) {
return ThrowException(Exception::Error(
String::New("SSL_CTX_use_certificate_chain")));
}
char string[120];
ERR_error_string_n(err, string, sizeof string);
return ThrowException(Exception::Error(String::New(string)));
}
return True();
}
Handle<Value> SecureContext::AddCACert(const Arguments& args) {
bool newCAStore = false;
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
if (!sc->ca_store_) {
sc->ca_store_ = X509_STORE_new();
newCAStore = true;
}
X509* x509 = LoadX509(args[0]);
if (!x509) return False();
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_);
}
return True();
}
Handle<Value> SecureContext::AddCRL(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
BIO *bio = LoadBIO(args[0]);
if (!bio) return False();
X509_CRL *x509 = PEM_read_bio_X509_CRL(bio, NULL, NULL, NULL);
if (x509 == NULL) {
BIO_free(bio);
return False();
}
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(bio);
X509_CRL_free(x509);
return True();
}
Handle<Value> SecureContext::AddRootCerts(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
assert(sc->ca_store_ == NULL);
if (!root_cert_store) {
root_cert_store = X509_STORE_new();
for (int i = 0; root_certs[i]; i++) {
BIO *bp = BIO_new(BIO_s_mem());
if (!BIO_write(bp, root_certs[i], strlen(root_certs[i]))) {
BIO_free(bp);
return False();
}
X509 *x509 = PEM_read_bio_X509(bp, NULL, NULL, NULL);
if (x509 == NULL) {
BIO_free(bp);
return False();
}
X509_STORE_add_cert(root_cert_store, x509);
BIO_free(bp);
X509_free(x509);
}
}
sc->ca_store_ = root_cert_store;
SSL_CTX_set_cert_store(sc->ctx_, sc->ca_store_);
return True();
}
Handle<Value> SecureContext::SetCiphers(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IsString()) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
String::Utf8Value ciphers(args[0]);
SSL_CTX_set_cipher_list(sc->ctx_, *ciphers);
return True();
}
Handle<Value> SecureContext::SetOptions(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IntegerValue()) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
SSL_CTX_set_options(sc->ctx_, args[0]->IntegerValue());
return True();
}
Handle<Value> SecureContext::SetSessionIdContext(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() != 1 || !args[0]->IsString()) {
return ThrowException(Exception::TypeError(String::New("Bad parameter")));
}
String::Utf8Value sessionIdContext(args[0]);
const unsigned char* sid_ctx = (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) {
Local<String> message;
BIO* bio;
BUF_MEM* mem;
if ((bio = BIO_new(BIO_s_mem()))) {
ERR_print_errors(bio);
BIO_get_mem_ptr(bio, &mem);
message = String::New(mem->data, mem->length);
BIO_free(bio);
} else {
message = String::New("SSL_CTX_set_session_id_context error");
}
return ThrowException(Exception::TypeError(message));
}
return True();
}
Handle<Value> SecureContext::Close(const Arguments& args) {
HandleScope scope;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
sc->FreeCTXMem();
return False();
}
//Takes .pfx or .p12 and password in string or buffer format
Handle<Value> SecureContext::LoadPKCS12(const Arguments& args) {
HandleScope scope;
BIO* in = NULL;
PKCS12* p12 = NULL;
EVP_PKEY* pkey = NULL;
X509* cert = NULL;
STACK_OF(X509)* extraCerts = NULL;
char* pass = NULL;
bool ret = false;
SecureContext *sc = ObjectWrap::Unwrap<SecureContext>(args.Holder());
if (args.Length() < 1) {
return ThrowException(Exception::TypeError(
String::New("Bad parameter")));
}
in = LoadBIO(args[0]);
if (in == NULL) {
return ThrowException(Exception::Error(
String::New("Unable to load BIO")));
}
if (args.Length() >= 2) {
ASSERT_IS_BUFFER(args[1]);
int passlen = Buffer::Length(args[1]);
if (passlen < 0) {
BIO_free(in);
return ThrowException(Exception::TypeError(
String::New("Bad password")));
}
pass = new char[passlen + 1];
int pass_written = DecodeWrite(pass, passlen, args[1], BINARY);
assert(pass_written == 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);
}
EVP_PKEY_free(pkey);
X509_free(cert);
sk_X509_free(extraCerts);
ret = true;
}
PKCS12_free(p12);
BIO_free(in);
delete[] pass;
if (!ret) {
unsigned long err = ERR_get_error();
const char* str = ERR_reason_error_string(err);
return ThrowException(Exception::Error(String::New(str)));
}
return True();
}
size_t ClientHelloParser::Write(const uint8_t* data, size_t len) {
HandleScope scope;
// Just accumulate data, everything will be pushed to BIO later
if (state_ == kPaused) return 0;
// Copy incoming data to the internal buffer
// (which has a size of the biggest possible TLS frame)
size_t available = sizeof(data_) - offset_;
size_t copied = len < available ? len : available;
memcpy(data_ + offset_, data, copied);
offset_ += copied;
// Vars for parsing hello
bool is_clienthello = false;
uint8_t session_size = -1;
uint8_t* session_id = NULL;
Local<Object> hello;
Handle<Value> argv[1];
switch (state_) {
case kWaiting:
// >= 5 bytes for header parsing
if (offset_ < 5) break;
if (data_[0] == kChangeCipherSpec || data_[0] == kAlert ||
data_[0] == kHandshake || data_[0] == kApplicationData) {
frame_len_ = (data_[3] << 8) + data_[4];
state_ = kTLSHeader;
body_offset_ = 5;
} else {
frame_len_ = (data_[0] << 8) + data_[1];
state_ = kSSLHeader;
if (*data_ & 0x40) {
// header with padding
body_offset_ = 3;
} else {
// without padding
body_offset_ = 2;
}
}
// Sanity check (too big frame, or too small)
if (frame_len_ >= sizeof(data_)) {
// Let OpenSSL handle it
Finish();
return copied;
}
case kTLSHeader:
case kSSLHeader:
// >= 5 + frame size bytes for frame parsing
if (offset_ < body_offset_ + frame_len_) break;
// Skip unsupported frames and gather some data from frame
// TODO: Check protocol version
if (data_[body_offset_] == kClientHello) {
is_clienthello = true;
uint8_t* body;
size_t session_offset;
if (state_ == kTLSHeader) {
// Skip frame header, hello header, protocol version and random data
session_offset = body_offset_ + 4 + 2 + 32;
if (session_offset + 1 < offset_) {
body = data_ + session_offset;
session_size = *body;
session_id = body + 1;
}
} else if (state_ == kSSLHeader) {
// Skip header, version
session_offset = body_offset_ + 3;
if (session_offset + 4 < offset_) {
body = data_ + session_offset;
int ciphers_size = (body[0] << 8) + body[1];
if (body + 4 + ciphers_size < data_ + offset_) {
session_size = (body[2] << 8) + body[3];
session_id = body + 4 + ciphers_size;
}
}
} else {
// Whoa? How did we get here?
abort();
}
// Check if we overflowed (do not reply with any private data)
if (session_id == NULL ||
session_size > 32 ||
session_id + session_size > data_ + offset_) {
Finish();
return copied;
}
// TODO: Parse other things?
}
// Not client hello - let OpenSSL handle it
if (!is_clienthello) {
Finish();
return copied;
}
// Parse frame, call javascript handler and
// move parser into the paused state
if (onclienthello_sym.IsEmpty()) {
onclienthello_sym = NODE_PSYMBOL("onclienthello");
}
if (sessionid_sym.IsEmpty()) {
sessionid_sym = NODE_PSYMBOL("sessionId");
}
state_ = kPaused;
hello = Object::New();
hello->Set(sessionid_sym,
Buffer::New(reinterpret_cast<char*>(session_id),
session_size)->handle_);
argv[0] = hello;
MakeCallback(conn_->handle_, onclienthello_sym, 1, argv);
break;
case kEnded:
default:
break;
}
return copied;
}
void ClientHelloParser::Finish() {
assert(state_ != kEnded);
state_ = kEnded;
// Write all accumulated data
int r = BIO_write(conn_->bio_read_, reinterpret_cast<char*>(data_), offset_);
conn_->HandleBIOError(conn_->bio_read_, "BIO_write", r);
conn_->SetShutdownFlags();
}
#ifdef SSL_PRINT_DEBUG
# define DEBUG_PRINT(...) fprintf (stderr, __VA_ARGS__)
#else
# define DEBUG_PRINT(...)
#endif
int Connection::HandleBIOError(BIO *bio, const char* func, int rv) {
if (rv >= 0) return rv;
int retry = BIO_should_retry(bio);
(void) retry; // unused if !defined(SSL_PRINT_DEBUG)
if (BIO_should_write(bio)) {
DEBUG_PRINT("[%p] BIO: %s want write. should retry %d\n", ssl_, func, retry);
return 0;
} else if (BIO_should_read(bio)) {
DEBUG_PRINT("[%p] BIO: %s want read. should retry %d\n", ssl_, func, retry);
return 0;
} else {
static char ssl_error_buf[512];
ERR_error_string_n(rv, ssl_error_buf, sizeof(ssl_error_buf));
HandleScope scope;
Local<Value> e = Exception::Error(String::New(ssl_error_buf));
handle_->Set(String::New("error"), e);
DEBUG_PRINT("[%p] BIO: %s failed: (%d) %s\n", ssl_, func, rv, ssl_error_buf);
return rv;
}
return 0;
}
int Connection::HandleSSLError(const char* func, int rv, ZeroStatus zs) {
if (rv > 0) return rv;
if ((rv == 0) && (zs == kZeroIsNotAnError)) return rv;
int err = SSL_get_error(ssl_, rv);
if (err == SSL_ERROR_NONE) {
return 0;
} else if (err == SSL_ERROR_WANT_WRITE) {
DEBUG_PRINT("[%p] SSL: %s want write\n", ssl_, func);
return 0;
} else if (err == SSL_ERROR_WANT_READ) {
DEBUG_PRINT("[%p] SSL: %s want read\n", ssl_, func);
return 0;
} else {
HandleScope scope;
BUF_MEM* mem;
BIO *bio;
assert(err == SSL_ERROR_SSL || err == SSL_ERROR_SYSCALL);
// XXX We need to drain the error queue for this thread or else OpenSSL
// has the possibility of blocking connections? This problem is not well
// understood. And we should be somehow propagating these errors up
// into JavaScript. There is no test which demonstrates this problem.
// https://github.com/joyent/node/issues/1719
if ((bio = BIO_new(BIO_s_mem()))) {
ERR_print_errors(bio);
BIO_get_mem_ptr(bio, &mem);
Local<Value> e = Exception::Error(String::New(mem->data, mem->length));
handle_->Set(String::New("error"), e);
BIO_free(bio);
}
return rv;
}
return 0;
}
void Connection::ClearError() {
#ifndef NDEBUG
HandleScope scope;
// We should clear the error in JS-land
assert(handle_->Get(String::New("error"))->BooleanValue() == false);
#endif // NDEBUG
}
void Connection::SetShutdownFlags() {
HandleScope scope;
int flags = SSL_get_shutdown(ssl_);
if (flags & SSL_SENT_SHUTDOWN) {
handle_->Set(String::New("sentShutdown"), True());
}
if (flags & SSL_RECEIVED_SHUTDOWN) {
handle_->Set(String::New("receivedShutdown"), True());
}
}
void Connection::Initialize(Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(Connection::New);
t->InstanceTemplate()->SetInternalFieldCount(1);
t->SetClassName(String::NewSymbol("Connection"));
NODE_SET_PROTOTYPE_METHOD(t, "encIn", Connection::EncIn);
NODE_SET_PROTOTYPE_METHOD(t, "clearOut", Connection::ClearOut);
NODE_SET_PROTOTYPE_METHOD(t, "clearIn", Connection::ClearIn);
NODE_SET_PROTOTYPE_METHOD(t, "encOut", Connection::EncOut);
NODE_SET_PROTOTYPE_METHOD(t, "clearPending", Connection::ClearPending);
NODE_SET_PROTOTYPE_METHOD(t, "encPending", Connection::EncPending);
NODE_SET_PROTOTYPE_METHOD(t, "getPeerCertificate", Connection::GetPeerCertificate);
NODE_SET_PROTOTYPE_METHOD(t, "getSession", Connection::GetSession);
NODE_SET_PROTOTYPE_METHOD(t, "setSession", Connection::SetSession);
NODE_SET_PROTOTYPE_METHOD(t, "loadSession", Connection::LoadSession);
NODE_SET_PROTOTYPE_METHOD(t, "isSessionReused", Connection::IsSessionReused);
NODE_SET_PROTOTYPE_METHOD(t, "isInitFinished", Connection::IsInitFinished);
NODE_SET_PROTOTYPE_METHOD(t, "verifyError", Connection::VerifyError);
NODE_SET_PROTOTYPE_METHOD(t, "getCurrentCipher", Connection::GetCurrentCipher);
NODE_SET_PROTOTYPE_METHOD(t, "start", Connection::Start);
NODE_SET_PROTOTYPE_METHOD(t, "shutdown", Connection::Shutdown);
NODE_SET_PROTOTYPE_METHOD(t, "receivedShutdown", Connection::ReceivedShutdown);
NODE_SET_PROTOTYPE_METHOD(t, "close", Connection::Close);
#ifdef OPENSSL_NPN_NEGOTIATED
NODE_SET_PROTOTYPE_METHOD(t, "getNegotiatedProtocol", Connection::GetNegotiatedProto);
NODE_SET_PROTOTYPE_METHOD(t, "setNPNProtocols", Connection::SetNPNProtocols);
#endif
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
NODE_SET_PROTOTYPE_METHOD(t, "getServername", Connection::GetServername);
NODE_SET_PROTOTYPE_METHOD(t, "setSNICallback", Connection::SetSNICallback);
#endif
target->Set(String::NewSymbol("Connection"), t->GetFunction());
}