node/src/tls_wrap.h at v1.8.0-commit · anchnk/node · GitHub

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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();

protected:

static const int kClearOutChunkSize = 1024;

// 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 EnableHelloParser(

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_;

#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB

v8::Persistent<v8::Value> sni_context_;

#endif // SSL_CTRL_SET_TLSEXT_SERVERNAME_CB

};

} // namespace node

#endif // SRC_TLS_WRAP_H_

node/src/tls_wrap.h at v1.8.0-commit · anchnk/node · GitHub

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