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#ifndef SRC_TLS_WRAP_H_
#define SRC_TLS_WRAP_H_
#include "node.h"
#include "node_crypto.h" // SSLWrap
#include "async-wrap.h"
#include "env.h"
#include "stream_wrap.h"
#include "util.h"
#include "v8.h"
#include <openssl/ssl.h>
namespace node {
// Forward-declarations
class NodeBIO;
class WriteWrap;
namespace crypto {
class SecureContext;
}
class TLSWrap : public crypto::SSLWrap<TLSWrap>,
public StreamBase,
public AsyncWrap {
public:
~TLSWrap() override;
static void Initialize(v8::Handle<v8::Object> target,
v8::Handle<v8::Value> unused,
v8::Handle<v8::Context> context);
void* Cast() override;
int GetFD() override;
bool IsAlive() override;
bool IsClosing() override;
// JavaScript functions
int ReadStart() override;
int ReadStop() override;
int DoShutdown(ShutdownWrap* req_wrap) override;
int DoWrite(WriteWrap* w,
uv_buf_t* bufs,
size_t count,
uv_stream_t* send_handle) override;
const char* Error() const override;
void ClearError() override;
void NewSessionDoneCb();
size_t self_size() const override { return sizeof(*this); }
protected:
static const int kClearOutChunkSize = 16384;
// Maximum number of bytes for hello parser
static const int kMaxHelloLength = 16384;
// Usual ServerHello + Certificate size
static const int kInitialClientBufferLength = 4096;
// Maximum number of buffers passed to uv_write()
static const int kSimultaneousBufferCount = 10;
// Write callback queue's item
class WriteItem {
public:
explicit WriteItem(WriteWrap* w) : w_(w) {
}
~WriteItem() {
w_ = nullptr;
}
WriteWrap* w_;
ListNode<WriteItem> member_;
};
TLSWrap(Environment* env,
Kind kind,
StreamBase* stream,
crypto::SecureContext* sc);
static void SSLInfoCallback(const SSL* ssl_, int where, int ret);
void InitSSL();
void EncOut();
static void EncOutCb(WriteWrap* req_wrap, int status);
bool ClearIn();
void ClearOut();
void MakePending();
bool InvokeQueued(int status);
inline void Cycle() {
// Prevent recursion
if (++cycle_depth_ > 1)
return;
for (; cycle_depth_ > 0; cycle_depth_--) {
ClearIn();
ClearOut();
EncOut();
}
}
AsyncWrap* GetAsyncWrap() override;
bool IsIPCPipe() override;
// Resource implementation
static void OnAfterWriteImpl(WriteWrap* w, void* ctx);
static void OnAllocImpl(size_t size, uv_buf_t* buf, void* ctx);
static void OnReadImpl(ssize_t nread,
const uv_buf_t* buf,
uv_handle_type pending,
void* ctx);
static void OnAfterWriteSelf(WriteWrap* w, void* ctx);
static void OnAllocSelf(size_t size, uv_buf_t* buf, void* ctx);
static void OnReadSelf(ssize_t nread,
const uv_buf_t* buf,
uv_handle_type pending,
void* ctx);
void DoRead(ssize_t nread, const uv_buf_t* buf, uv_handle_type pending);
// If |msg| is not nullptr, caller is responsible for calling `delete[] *msg`.
v8::Local<v8::Value> GetSSLError(int status, int* err, const char** msg);
static void OnClientHelloParseEnd(void* arg);
static void Wrap(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Receive(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Start(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetVerifyMode(const v8::FunctionCallbackInfo<v8::Value>& args);
static void EnableSessionCallbacks(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void EnableCertCb(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void DestroySSL(const v8::FunctionCallbackInfo<v8::Value>& args);
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
static void GetServername(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetServername(const v8::FunctionCallbackInfo<v8::Value>& args);
static int SelectSNIContextCallback(SSL* s, int* ad, void* arg);
#endif // SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
crypto::SecureContext* sc_;
StreamBase* stream_;
BIO* enc_in_;
BIO* enc_out_;
NodeBIO* clear_in_;
size_t write_size_;
size_t write_queue_size_;
typedef ListHead<WriteItem, &WriteItem::member_> WriteItemList;
WriteItemList write_item_queue_;
WriteItemList pending_write_items_;
bool started_;
bool established_;
bool shutdown_;
const char* error_;
int cycle_depth_;
// If true - delivered EOF to the js-land, either after `close_notify`, or
// after the `UV_EOF` on socket.
bool eof_;
};
} // namespace node
#endif // SRC_TLS_WRAP_H_
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