tildefriends/src/socket.js.c

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#include "socket.js.h"
#include "log.h"
#include "mem.h"
#include "task.h"
#include "tls.h"
#include "tlscontext.js.h"
#include "util.js.h"
#include "uv.h"
#include <string.h>
typedef int promiseid_t;
typedef struct _socket_t socket_t;
static JSClassID _classId;
static int _count;
static int _open_count;
static tf_tls_context_t* _defaultTlsContext;
static socket_t** _sockets;
static int _sockets_count;
typedef enum _socket_direction_t
{
kUndetermined,
kAccept,
kConnect,
} socket_direction_t;
typedef struct _socket_t
{
tf_task_t* _task;
uv_tcp_t _socket;
uv_timer_t _timer;
tf_tls_session_t* _tls;
promiseid_t _startTlsPromise;
promiseid_t _closePromise;
bool _connected;
bool _noDelay;
bool _reading;
bool _listening;
int _active;
char _peerName[256];
socket_direction_t _direction;
JSValue _object;
JSValue _onConnect;
JSValue _onRead;
JSValue _onError;
uint64_t created_ms;
uint64_t timeout_ms;
} socket_t;
static JSValue _socket_create(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static void _socket_finalizer(JSRuntime* runtime, JSValue value);
static JSValue _socket_startTls(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_stopTls(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_bind(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_connect(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_listen(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_accept(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_close(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_shutdown(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_read(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_onError(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_write(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_isConnected(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_getPeerName(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_getPeerCertificate(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_getNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_setNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _sockets_get(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static JSValue _socket_setActivityTimeout(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv);
static void _socket_onClose(uv_handle_t* handle);
static void _socket_onShutdown(uv_shutdown_t* request, int status);
static void _socket_onResolvedForBind(uv_getaddrinfo_t* resolver, int status, struct addrinfo* result);
static void _socket_onResolvedForConnect(uv_getaddrinfo_t* resolver, int status, struct addrinfo* result);
static void _socket_onConnect(uv_connect_t* request, int status);
static void _socket_onNewConnection(uv_stream_t* server, int status);
static void _socket_allocateBuffer(uv_handle_t* handle, size_t suggestedSize, uv_buf_t* buffer);
static void _socket_onRead(uv_stream_t* stream, ssize_t readSize, const uv_buf_t* buffer);
static void _socket_onWrite(uv_write_t* request, int status);
static void _socket_onTlsShutdown(uv_write_t* request, int status);
static void _socket_resetTimeout(socket_t* socket);
static void _socket_pauseTimeout(socket_t* socket);
static void _socket_resumeTimeout(socket_t* socket);
static void _socket_notifyDataRead(socket_t* socket, const char* data, size_t length);
static int _socket_writeBytes(socket_t* socket, promiseid_t promise, int (*callback)(socket_t* socket, promiseid_t promise, const char*, size_t), JSValue value, int* outLength);
static int _socket_writeInternal(socket_t* socket, promiseid_t promise, const char* data, size_t length);
static void _socket_processTlsShutdown(socket_t* socket, promiseid_t promise);
static void _socket_shutdownInternal(socket_t* socket, promiseid_t promise);
static bool _socket_processSomeOutgoingTls(socket_t* socket, promiseid_t promise, uv_write_cb callback);
static void _socket_processOutgoingTls(socket_t* socket);
static void _socket_reportTlsErrors(socket_t* socket);
static void _socket_reportError(socket_t* socket, const char* error);
static void _socket_set_handler(socket_t* socket, JSValue* handler, JSValue new_value)
{
JSContext* context = tf_task_get_context(socket->_task);
JSValue old_handler = *handler;
if (JS_IsUndefined(old_handler) && !JS_IsUndefined(new_value))
{
JS_DupValue(context, socket->_object);
}
*handler = JS_DupValue(context, new_value);
JS_FreeValue(context, old_handler);
if (!JS_IsUndefined(old_handler) && JS_IsUndefined(new_value))
{
JS_FreeValue(context, socket->_object);
}
}
static void _socket_gc_mark(JSRuntime* runtime, JSValueConst value, JS_MarkFunc mark_func)
{
socket_t* socket = JS_GetOpaque(value, _classId);
if (socket)
{
JS_MarkValue(runtime, socket->_onConnect, mark_func);
JS_MarkValue(runtime, socket->_onRead, mark_func);
JS_MarkValue(runtime, socket->_onError, mark_func);
}
}
JSValue tf_socket_register(JSContext* context)
{
JS_NewClassID(&_classId);
JSClassDef def = {
.class_name = "Socket",
.finalizer = &_socket_finalizer,
.gc_mark = _socket_gc_mark,
};
if (JS_NewClass(JS_GetRuntime(context), _classId, &def) != 0)
{
fprintf(stderr, "Failed to register Socket.\n");
}
JSValue global = JS_GetGlobalObject(context);
JS_SetPropertyStr(context, global, "getSockets", JS_NewCFunction(context, _sockets_get, "getSockets", 0));
JS_FreeValue(context, global);
return JS_NewCFunction2(context, _socket_create, "Socket", 0, JS_CFUNC_constructor, 0);
}
int tf_socket_get_count()
{
return _count;
}
int tf_socket_get_open_count()
{
return _open_count;
}
typedef struct _socket_resolve_data_t
{
uv_getaddrinfo_t resolver;
socket_t* socket;
promiseid_t promise;
} socket_resolve_data_t;
static socket_t* _socket_create_internal(JSContext* context)
{
socket_t* socket = tf_malloc(sizeof(socket_t));
memset(socket, 0, sizeof(*socket));
_sockets = tf_resize_vec(_sockets, sizeof(socket_t*) * (_sockets_count + 1));
_sockets[_sockets_count++] = socket;
socket->_closePromise = -1;
socket->_startTlsPromise = -1;
++_count;
JSValue object = JS_NewObjectClass(context, _classId);
socket->_task = tf_task_get(context);
socket->_object = object;
JS_SetOpaque(object, socket);
socket->created_ms = uv_now(tf_task_get_loop(socket->_task));
socket->_onRead = JS_UNDEFINED;
socket->_onError = JS_UNDEFINED;
socket->_onConnect = JS_UNDEFINED;
JS_SetPropertyStr(context, object, "bind", JS_NewCFunction(context, _socket_bind, "bind", 2));
JS_SetPropertyStr(context, object, "connect", JS_NewCFunction(context, _socket_connect, "connect", 2));
JS_SetPropertyStr(context, object, "listen", JS_NewCFunction(context, _socket_listen, "listen", 2));
JS_SetPropertyStr(context, object, "accept", JS_NewCFunction(context, _socket_accept, "accept", 0));
JS_SetPropertyStr(context, object, "startTls", JS_NewCFunction(context, _socket_startTls, "startTls", 0));
JS_SetPropertyStr(context, object, "stopTls", JS_NewCFunction(context, _socket_stopTls, "stopTls", 0));
JS_SetPropertyStr(context, object, "shutdown", JS_NewCFunction(context, _socket_shutdown, "shutdown", 0));
JS_SetPropertyStr(context, object, "close", JS_NewCFunction(context, _socket_close, "close", 0));
JS_SetPropertyStr(context, object, "read", JS_NewCFunction(context, _socket_read, "read", 0));
JS_SetPropertyStr(context, object, "onError", JS_NewCFunction(context, _socket_onError, "onError", 1));
JS_SetPropertyStr(context, object, "write", JS_NewCFunction(context, _socket_write, "write", 1));
JS_SetPropertyStr(context, object, "setActivityTimeout", JS_NewCFunction(context, _socket_setActivityTimeout, "setActivityTimeout", 1));
JSAtom atom = JS_NewAtom(context, "isConnected");
JS_DefinePropertyGetSet(context, object, atom, JS_NewCFunction(context, _socket_isConnected, "isConnected", 0), JS_NULL, 0);
JS_FreeAtom(context, atom);
atom = JS_NewAtom(context, "peerName");
JS_DefinePropertyGetSet(context, object, atom, JS_NewCFunction(context, _socket_getPeerName, "peerName", 0), JS_NULL, 0);
JS_FreeAtom(context, atom);
atom = JS_NewAtom(context, "peerCertificate");
JS_DefinePropertyGetSet(context, object, atom, JS_NewCFunction(context, _socket_getPeerCertificate, "peerCertificate", 0), JS_NULL, 0);
JS_FreeAtom(context, atom);
atom = JS_NewAtom(context, "noDelay");
JSValue get_no_delay = JS_NewCFunction(context, _socket_getNoDelay, "getNoDelay", 0);
JSValue set_no_delay = JS_NewCFunction(context, _socket_setNoDelay, "setNoDelay", 1);
JS_DefinePropertyGetSet(context, object, atom, get_no_delay, set_no_delay, 0);
JS_FreeAtom(context, atom);
++_open_count;
uv_tcp_init(tf_task_get_loop(socket->_task), &socket->_socket);
socket->_socket.data = socket;
uv_timer_init(tf_task_get_loop(socket->_task), &socket->_timer);
socket->_timer.data = socket;
return socket;
}
static JSValue _socket_create(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
return _socket_create_internal(context)->_object;
}
static void _socket_close_internal(socket_t* socket)
{
_socket_set_handler(socket, &socket->_onRead, JS_UNDEFINED);
_socket_set_handler(socket, &socket->_onError, JS_UNDEFINED);
_socket_set_handler(socket, &socket->_onConnect, JS_UNDEFINED);
if (socket->_tls)
{
tf_tls_session_destroy(socket->_tls);
socket->_tls = NULL;
}
if (socket->_socket.data && !uv_is_closing((uv_handle_t*)&socket->_socket))
{
uv_close((uv_handle_t*)&socket->_socket, _socket_onClose);
}
if (socket->_timer.data && !uv_is_closing((uv_handle_t*)&socket->_timer))
{
uv_close((uv_handle_t*)&socket->_timer, _socket_onClose);
}
if (!socket->_socket.data && !socket->_timer.data && JS_IsUndefined(socket->_object))
{
--_count;
for (int i = 0; i < _sockets_count; i++)
{
if (_sockets[i] == socket)
{
_sockets[i] = _sockets[_sockets_count - 1];
--_sockets_count;
_sockets = tf_resize_vec(_sockets, sizeof(socket_t*) * _sockets_count);
break;
}
}
tf_free(socket);
}
}
static void _socket_finalizer(JSRuntime* runtime, JSValue value)
{
socket_t* socket = JS_GetOpaque(value, _classId);
socket->_object = JS_UNDEFINED;
_socket_close_internal(socket);
}
static void _socket_reportError(socket_t* socket, const char* error)
{
JSContext* context = tf_task_get_context(socket->_task);
JSValue ref = JS_DupValue(context, socket->_object);
if (JS_IsFunction(context, socket->_onError))
{
JSValue exception = JS_ThrowInternalError(context, "%s", error);
JSValue cb_ref = JS_DupValue(context, socket->_onError);
JSValue result = JS_Call(context, socket->_onError, socket->_object, 1, &exception);
JS_FreeValue(context, cb_ref);
tf_util_report_error(context, result);
JS_FreeValue(context, exception);
JS_FreeValue(context, result);
}
else
{
fprintf(stderr, "Socket::reportError: %s\n", error);
}
JS_FreeValue(context, ref);
}
static void _socket_reportTlsErrors(socket_t* socket)
{
char buffer[4096];
while (socket->_tls && tf_tls_session_get_error(socket->_tls, buffer, sizeof(buffer)))
{
_socket_reportError(socket, buffer);
}
}
static JSValue _socket_startTls(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
if (!socket->_tls)
{
tf_tls_context_t* context = 0;
if (argc > 0 && JS_IsObject(argv[0]))
{
context = tf_tls_context_get(argv[0]);
}
else
{
if (!_defaultTlsContext)
{
_defaultTlsContext = tf_tls_context_create();
}
context = _defaultTlsContext;
}
if (context)
{
socket->_tls = tf_tls_context_create_session(context);
}
if (socket->_tls)
{
tf_tls_session_set_hostname(socket->_tls, socket->_peerName);
if (socket->_direction == kAccept)
{
tf_tls_session_start_accept(socket->_tls);
}
else if (socket->_direction == kConnect)
{
tf_tls_session_start_connect(socket->_tls);
}
JSValue result = tf_task_allocate_promise(socket->_task, &socket->_startTlsPromise);
_socket_processOutgoingTls(socket);
return result;
}
else
{
return JS_ThrowInternalError(tf_task_get_context(socket->_task), "Failed to get TLS context");
}
}
else
{
return JS_ThrowInternalError(tf_task_get_context(socket->_task), "startTls with TLS already started");
}
}
static JSValue _socket_stopTls(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
if (socket->_tls)
{
_socket_processOutgoingTls(socket);
tf_tls_session_destroy(socket->_tls);
socket->_tls = NULL;
}
else
{
JS_ThrowInternalError(tf_task_get_context(socket->_task), "stopTls with TLS already stopped");
}
return JS_NULL;
}
static bool _socket_processSomeOutgoingTls(socket_t* socket, promiseid_t promise, uv_write_cb callback)
{
if (!socket->_socket.data)
{
return false;
}
char buffer[65536];
int result = tf_tls_session_read_encrypted(socket->_tls, buffer, sizeof(buffer));
if (result > 0)
{
char* request_buffer = tf_malloc(sizeof(uv_write_t) + result);
uv_write_t* request = (uv_write_t*)request_buffer;
memset(request, 0, sizeof(*request));
request->data = (void*)(intptr_t)(promise);
char* rawBuffer = request_buffer + sizeof(uv_write_t);
memcpy(rawBuffer, buffer, result);
uv_buf_t writeBuffer = {
.base = rawBuffer,
.len = result,
};
_socket_pauseTimeout(socket);
int writeResult = uv_write(request, (uv_stream_t*)&socket->_socket, &writeBuffer, 1, callback);
if (writeResult != 0)
{
tf_free(request_buffer);
char error[256];
snprintf(error, sizeof(error), "uv_write: %s", uv_strerror(writeResult));
_socket_reportError(socket, error);
}
}
else
{
_socket_reportTlsErrors(socket);
}
return result > 0;
}
static void _socket_processOutgoingTls(socket_t* socket)
{
while (_socket_processSomeOutgoingTls(socket, -1, _socket_onWrite))
{
}
}
static JSValue _socket_bind(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
const char* node = JS_ToCString(tf_task_get_context(socket->_task), argv[0]);
const char* port = JS_ToCString(tf_task_get_context(socket->_task), argv[1]);
socket_resolve_data_t* data = tf_malloc(sizeof(socket_resolve_data_t));
memset(data, 0, sizeof(*data));
struct addrinfo hints = {
.ai_family = AF_UNSPEC,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
.ai_flags = 0,
};
data->resolver.data = data;
data->socket = socket;
JSValue promise = tf_task_allocate_promise(socket->_task, &data->promise);
int result = uv_getaddrinfo(tf_task_get_loop(socket->_task), &data->resolver, _socket_onResolvedForBind, node, port, &hints);
if (result != 0)
{
tf_task_reject_promise(socket->_task, data->promise, JS_ThrowInternalError(tf_task_get_context(socket->_task), "uv_getaddrinfo: %s", uv_strerror(result)));
tf_free(data);
}
return promise;
}
static void _socket_onResolvedForBind(uv_getaddrinfo_t* resolver, int status, struct addrinfo* result)
{
socket_resolve_data_t* data = (socket_resolve_data_t*)resolver->data;
if (status != 0)
{
tf_task_reject_promise(data->socket->_task, data->promise, JS_ThrowInternalError(tf_task_get_context(data->socket->_task), "uv_getaddrinfo: %s", uv_strerror(status)));
}
else
{
int bindResult = uv_tcp_bind(&data->socket->_socket, result->ai_addr, 0);
if (bindResult != 0)
{
tf_task_reject_promise(data->socket->_task, data->promise, JS_ThrowInternalError(tf_task_get_context(data->socket->_task), "uv_tcp_bind: %s", uv_strerror(bindResult)));
}
else
{
struct sockaddr_storage addr = { 0 };
int port = 0;
int size = (int)sizeof(addr);
if (uv_tcp_getsockname(&data->socket->_socket, (struct sockaddr*)&addr, &size) == 0)
{
if (addr.ss_family == AF_INET)
{
port = ntohs(((struct sockaddr_in*)&addr)->sin_port);
}
else if (addr.ss_family == AF_INET6)
{
port = ntohs(((struct sockaddr_in6*)&addr)->sin6_port);
}
}
tf_task_resolve_promise(data->socket->_task, data->promise, JS_NewInt32(tf_task_get_context(data->socket->_task), port));
}
}
tf_free(data);
}
static JSValue _socket_connect(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
socket->_direction = kConnect;
const char* node = JS_ToCString(context, argv[0]);
const char* port = JS_ToCString(context, argv[1]);
snprintf(socket->_peerName, sizeof(socket->_peerName), "%s", node);
socket_resolve_data_t* data = tf_malloc(sizeof(socket_resolve_data_t));
memset(data, 0, sizeof(*data));
struct addrinfo hints = {
.ai_family = PF_INET,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
};
data->resolver.data = data;
data->socket = socket;
JSValue promise = tf_task_allocate_promise(socket->_task, &data->promise);
int result = uv_getaddrinfo(tf_task_get_loop(socket->_task), &data->resolver, _socket_onResolvedForConnect, node, port, &hints);
if (result != 0)
{
char error[256];
snprintf(error, sizeof(error), "uv_getaddrinfo: %s", uv_strerror(result));
tf_task_reject_promise(socket->_task, data->promise, JS_ThrowInternalError(context, "%s", error));
_socket_close_internal(socket);
tf_free(data);
}
JS_FreeCString(context, node);
JS_FreeCString(context, port);
return promise;
}
static void _socket_onResolvedForConnect(uv_getaddrinfo_t* resolver, int status, struct addrinfo* result)
{
socket_resolve_data_t* data = resolver->data;
if (status != 0)
{
char error[256];
snprintf(error, sizeof(error), "uv_getaddrinfo: %s", uv_strerror(status));
tf_task_reject_promise(data->socket->_task, data->promise, JS_ThrowInternalError(tf_task_get_context(data->socket->_task), "%s", error));
_socket_close_internal(data->socket);
}
else
{
uv_connect_t* request = tf_malloc(sizeof(uv_connect_t));
memset(request, 0, sizeof(*request));
request->data = (void*)(intptr_t)data->promise;
int connectResult = uv_tcp_connect(request, &data->socket->_socket, result->ai_addr, _socket_onConnect);
if (connectResult != 0)
{
char error[256];
snprintf(error, sizeof(error), "uv_tcp_connect: %s", uv_strerror(connectResult));
tf_task_reject_promise(data->socket->_task, data->promise, JS_ThrowInternalError(tf_task_get_context(data->socket->_task), "%s", error));
_socket_close_internal(data->socket);
tf_free(request);
}
}
uv_freeaddrinfo(result);
tf_free(data);
}
static void _socket_onConnect(uv_connect_t* request, int status)
{
promiseid_t promise = (intptr_t)request->data;
if (promise != -1)
{
socket_t* socket = request->handle->data;
if (status == 0)
{
socket->_connected = true;
tf_task_resolve_promise(socket->_task, promise, JS_NewInt32(tf_task_get_context(socket->_task), status));
}
else
{
char error[256];
snprintf(error, sizeof(error), "uv_tcp_connect: %s", uv_strerror(status));
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(tf_task_get_context(socket->_task), "%s", error));
_socket_close_internal(socket);
}
}
tf_free(request);
}
static JSValue _socket_listen(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
socket->_listening = true;
int backlog = 16;
JS_ToInt32(context, &backlog, argv[0]);
if (JS_IsUndefined(socket->_onConnect))
{
_socket_set_handler(socket, &socket->_onConnect, argv[1]);
int result = uv_listen((uv_stream_t*)&socket->_socket, backlog, _socket_onNewConnection);
if (result != 0)
{
return JS_ThrowInternalError(context, "uv_listen: %s", uv_strerror(result));
}
return JS_NewInt32(context, result);
}
else
{
return JS_ThrowInternalError(context, "listen: Already listening.");
}
}
static void _socket_onNewConnection(uv_stream_t* server, int status)
{
socket_t* socket = server->data;
JSContext* context = tf_task_get_context(socket->_task);
JSValue ref = JS_DupValue(context, socket->_object);
if (!JS_IsUndefined(socket->_onConnect))
{
JSValue cb_ref = JS_DupValue(context, socket->_onConnect);
JSValue result = JS_Call(context, socket->_onConnect, socket->_object, 0, NULL);
JS_FreeValue(context, cb_ref);
tf_util_report_error(context, result);
JS_FreeValue(context, result);
}
JS_FreeValue(context, ref);
}
static JSValue _socket_accept(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
socket_t* client = _socket_create_internal(context);
client->_direction = kAccept;
promiseid_t promise;
JSValue ref = JS_DupValue(context, client->_object);
JSValue result = tf_task_allocate_promise(socket->_task, &promise);
int status = uv_accept((uv_stream_t*)&socket->_socket, (uv_stream_t*)&client->_socket);
if (status == 0)
{
struct sockaddr_storage name = { 0 };
int namelen = (int)sizeof(name);
if (uv_tcp_getpeername(&client->_socket, (struct sockaddr*)&name, &namelen) == 0)
{
uv_ip_name((const struct sockaddr*)&name, client->_peerName, sizeof(client->_peerName));
}
client->_connected = true;
tf_task_resolve_promise(socket->_task, promise, client->_object);
JS_FreeValue(context, client->_object);
}
else
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(context, "uv_accept: %s", uv_strerror(status)));
}
JS_FreeValue(context, ref);
return result;
}
static JSValue _socket_close(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
if (socket->_closePromise == -1 && socket->_socket.data && !uv_is_closing((uv_handle_t*)&socket->_socket))
{
JSValue result = tf_task_allocate_promise(socket->_task, &socket->_closePromise);
_socket_close_internal(socket);
return result;
}
return JS_UNDEFINED;
}
static JSValue _socket_shutdown(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
promiseid_t promise = -1;
JSValue result = tf_task_allocate_promise(socket->_task, &promise);
if (socket->_tls)
{
_socket_processTlsShutdown(socket, promise);
}
else
{
_socket_shutdownInternal(socket, promise);
}
return result;
}
static void _socket_shutdownInternal(socket_t* socket, promiseid_t promise)
{
uv_shutdown_t* request = tf_malloc(sizeof(uv_shutdown_t));
memset(request, 0, sizeof(*request));
request->data = (void*)(intptr_t)promise;
int result = uv_shutdown(request, (uv_stream_t*)&socket->_socket, _socket_onShutdown);
if (result != 0)
{
char error[256];
snprintf(error, sizeof(error), "uv_shutdown: %s", uv_strerror(result));
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(tf_task_get_context(socket->_task), "%s", error));
tf_free(request);
}
}
static void _socket_processTlsShutdown(socket_t* socket, promiseid_t promise)
{
if (!socket->_tls)
{
_socket_shutdownInternal(socket, promise);
}
else
{
tf_tls_session_shutdown(socket->_tls);
if (!_socket_processSomeOutgoingTls(socket, promise, _socket_onTlsShutdown))
{
_socket_shutdownInternal(socket, promise);
}
}
}
static void _socket_onTlsShutdown(uv_write_t* request, int status)
{
socket_t* socket = request->handle->data;
promiseid_t promise = (intptr_t)request->data;
_socket_processTlsShutdown(socket, promise);
tf_free(request);
}
static JSValue _socket_onError(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
_socket_set_handler(socket, &socket->_onError, argv[0]);
return JS_NULL;
}
static JSValue _socket_read(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
JSValue ref = JS_DupValue(context, socket->_object);
_socket_set_handler(socket, &socket->_onRead, argv[0]);
promiseid_t promise = -1;
JSValue read_result = tf_task_allocate_promise(socket->_task, &promise);
if (!socket->_reading && socket->_socket.data)
{
_socket_resetTimeout(socket);
int result = uv_read_start((uv_stream_t*)&socket->_socket, _socket_allocateBuffer, _socket_onRead);
if (result != 0)
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(context, "uv_read_start: %s", uv_strerror(result)));
}
else
{
socket->_reading = true;
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
}
else
{
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
JS_FreeValue(context, ref);
return read_result;
}
static void _socket_allocateBuffer(uv_handle_t* handle, size_t suggestedSize, uv_buf_t* buf)
{
*buf = uv_buf_init(tf_malloc(suggestedSize), suggestedSize);
}
static void _socket_onRead(uv_stream_t* stream, ssize_t readSize, const uv_buf_t* buffer)
{
socket_t* socket = stream->data;
_socket_resetTimeout(socket);
JSContext* context = tf_task_get_context(socket->_task);
JSValue ref = JS_DupValue(context, socket->_object);
if (readSize <= 0)
{
socket->_connected = false;
if (!JS_IsUndefined(socket->_onRead))
{
JSValue args[] = { JS_UNDEFINED };
JSValue cb_ref = JS_DupValue(context, socket->_onRead);
JSValue result = JS_Call(context, socket->_onRead, socket->_object, 1, args);
JS_FreeValue(context, cb_ref);
tf_util_report_error(context, result);
JS_FreeValue(context, result);
}
_socket_close_internal(socket);
}
else
{
if (socket->_tls)
{
_socket_reportTlsErrors(socket);
tf_tls_session_write_encrypted(socket->_tls, buffer->base, readSize);
if (socket->_startTlsPromise != -1)
{
tf_tls_handshake_t result = tf_tls_session_handshake(socket->_tls);
if (result == k_tls_handshake_done)
{
promiseid_t promise = socket->_startTlsPromise;
socket->_startTlsPromise = -1;
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
else if (result == k_tls_handshake_failed)
{
promiseid_t promise = socket->_startTlsPromise;
socket->_startTlsPromise = -1;
char buffer[8192];
if (tf_tls_session_get_error(socket->_tls, buffer, sizeof(buffer)))
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(context, "%s", buffer));
}
else
{
tf_task_reject_promise(socket->_task, promise, JS_UNDEFINED);
}
}
}
while (socket->_tls)
{
char plain[8192];
int result = tf_tls_session_read_plain(socket->_tls, plain, sizeof(plain));
if (result > 0)
{
_socket_notifyDataRead(socket, plain, result);
}
else if (result == k_tls_read_failed)
{
_socket_reportTlsErrors(socket);
_socket_close_internal(socket);
break;
}
else if (result == k_tls_read_zero)
{
if (!JS_IsUndefined(socket->_onRead))
{
JSValue args[] = { JS_UNDEFINED };
JSValue cb_ref = JS_DupValue(context, socket->_onRead);
JSValue result = JS_Call(context, socket->_onRead, socket->_object, 1, args);
JS_FreeValue(context, cb_ref);
tf_util_report_error(context, result);
JS_FreeValue(context, result);
}
_socket_close_internal(socket);
break;
}
else
{
break;
}
}
if (socket->_tls)
{
_socket_processOutgoingTls(socket);
}
}
else
{
_socket_notifyDataRead(socket, buffer->base, readSize);
}
}
tf_free(buffer->base);
JS_FreeValue(context, ref);
}
static void _socket_notifyDataRead(socket_t* socket, const char* data, size_t length)
{
if (data && length > 0)
{
JSContext* context = tf_task_get_context(socket->_task);
JSValue ref = JS_DupValue(context, socket->_object);
JSValue typedArray = tf_util_new_uint8_array(context, (const uint8_t*)data, length);
JSValue args[] = { typedArray };
if (!JS_IsUndefined(socket->_onRead))
{
JSValue cb_ref = JS_DupValue(context, socket->_onRead);
JSValue result = JS_Call(context, socket->_onRead, socket->_object, 1, args);
JS_FreeValue(context, cb_ref);
tf_util_report_error(context, result);
JS_FreeValue(context, result);
}
JS_FreeValue(context, typedArray);
JS_FreeValue(context, ref);
}
}
static int _socket_writeBytes(socket_t* socket, promiseid_t promise, int (*callback)(socket_t* socket, promiseid_t promise, const char*, size_t), JSValue value, int* outLength)
{
int result = -1;
size_t length;
uint8_t* array = NULL;
JSContext* context = tf_task_get_context(socket->_task);
if (JS_IsString(value))
{
const char* stringValue = JS_ToCStringLen(context, &length, value);
result = callback(socket, promise, stringValue, length);
JS_FreeCString(context, stringValue);
}
else if ((array = tf_util_try_get_array_buffer(context, &length, value)) != 0)
{
result = callback(socket, promise, (const char*)array, length);
}
else
{
size_t offset;
size_t element_size;
JSValue buffer = tf_util_try_get_typed_array_buffer(context, value, &offset, &length, &element_size);
if (!JS_IsException(buffer))
{
size_t size;
if ((array = tf_util_try_get_array_buffer(context, &size, buffer)) != 0)
{
result = callback(socket, promise, (const char*)array, length);
}
}
JS_FreeValue(context, buffer);
}
if (outLength)
{
*outLength = (int)length;
}
return result;
}
static int _socket_writeInternal(socket_t* socket, promiseid_t promise, const char* data, size_t length)
{
if (!socket->_socket.data)
{
return UV_ENOTCONN;
}
char* rawBuffer = tf_malloc(sizeof(uv_write_t) + length);
uv_write_t* request = (uv_write_t*)rawBuffer;
memcpy(rawBuffer + sizeof(uv_write_t), data, length);
uv_buf_t buffer = {
.base = rawBuffer + sizeof(uv_write_t),
.len = length,
};
request->data = (void*)(intptr_t)promise;
_socket_pauseTimeout(socket);
int result = uv_write(request, (uv_stream_t*)&socket->_socket, &buffer, 1, _socket_onWrite);
if (result != 0)
{
tf_free(rawBuffer);
}
return result;
}
static int _socket_write_tls(socket_t* socket, promiseid_t promise, const char* data, size_t size)
{
return tf_tls_session_write_plain(socket->_tls, data, size);
}
static JSValue _socket_write(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
promiseid_t promise = -1;
JSValue write_result = tf_task_allocate_promise(socket->_task, &promise);
JSValue ref = JS_DupValue(context, socket->_object);
if (!JS_IsUndefined(argv[0]))
{
if (socket->_tls)
{
_socket_reportTlsErrors(socket);
int length = 0;
int result = _socket_writeBytes(socket, -1, _socket_write_tls, argv[0], &length);
char buffer[8192];
if (result <= 0 && tf_tls_session_get_error(socket->_tls, buffer, sizeof(buffer)))
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(context, "%s", buffer));
}
else if (result < length)
{
tf_task_reject_promise(socket->_task, promise, JS_NewInt32(context, result));
}
else
{
tf_task_resolve_promise(socket->_task, promise, JS_NewInt32(context, result));
}
_socket_processOutgoingTls(socket);
}
else
{
int length;
int result = _socket_writeBytes(socket, promise, _socket_writeInternal, argv[0], &length);
if (result != 0)
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(context, "uv_write: %s", uv_strerror(result)));
}
}
}
else
{
tf_task_reject_promise(socket->_task, promise, JS_NewInt32(context, -2));
}
JS_FreeValue(context, ref);
return write_result;
}
static void _socket_onWrite(uv_write_t* request, int status)
{
socket_t* socket = request->handle->data;
_socket_resumeTimeout(socket);
promiseid_t promise = (intptr_t)request->data;
if (promise != -1)
{
if (status == 0)
{
tf_task_resolve_promise(socket->_task, promise, JS_NewInt32(tf_task_get_context(socket->_task), status));
}
else
{
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(tf_task_get_context(socket->_task), "uv_write: %s", uv_strerror(status)));
}
}
tf_free(request);
}
static void _socket_timeout(uv_timer_t* timer)
{
socket_t* socket = timer->data;
_socket_close_internal(socket);
}
static JSValue _socket_setActivityTimeout(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
int64_t timeout = 0;
if (JS_ToInt64(context, &timeout, argv[0]) == 0 && socket->timeout_ms > 0)
{
socket->timeout_ms = timeout;
uv_timer_start(&socket->_timer, _socket_timeout, socket->timeout_ms, 0);
}
else
{
uv_timer_stop(&socket->_timer);
}
return JS_UNDEFINED;
}
static JSValue _socket_isConnected(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
return socket->_connected ? JS_TRUE : JS_FALSE;
}
static void _socket_onClose(uv_handle_t* handle)
{
--_open_count;
socket_t* socket = handle->data;
handle->data = NULL;
if (socket->_closePromise != -1)
{
promiseid_t promise = socket->_closePromise;
socket->_closePromise = -1;
socket->_connected = false;
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
if (socket->_startTlsPromise != -1)
{
promiseid_t promise = socket->_startTlsPromise;
socket->_startTlsPromise = -1;
socket->_connected = false;
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
_socket_close_internal(socket);
}
static void _socket_onShutdown(uv_shutdown_t* request, int status)
{
socket_t* socket = request->handle->data;
_socket_resetTimeout(socket);
promiseid_t promise = (intptr_t)request->data;
if (status == 0)
{
tf_task_resolve_promise(socket->_task, promise, JS_UNDEFINED);
}
else
{
char error[256];
snprintf(error, sizeof(error), "uv_shutdown: %s", uv_strerror(status));
tf_task_reject_promise(socket->_task, promise, JS_ThrowInternalError(tf_task_get_context(socket->_task), "%s", error));
}
tf_free(request);
}
static JSValue _socket_getPeerName(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
struct sockaddr_in6 addr;
int nameLength = sizeof(addr);
if (uv_tcp_getpeername(&socket->_socket, (struct sockaddr*)&addr, &nameLength) == 0)
{
char name[1024];
if ((size_t)nameLength > sizeof(struct sockaddr_in))
{
if (uv_ip6_name(&addr, name, sizeof(name)) == 0)
{
return JS_NewString(context, name);
}
}
else
{
if (uv_ip4_name((struct sockaddr_in*)&addr, name, sizeof(name)) == 0)
{
return JS_NewString(context, name);
}
}
}
return JS_UNDEFINED;
}
static JSValue _socket_getPeerCertificate(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
if (socket->_tls)
{
char buffer[128 * 1024];
int result = tf_tls_session_get_peer_certificate(socket->_tls, buffer, sizeof(buffer));
if (result > 0)
{
return tf_util_new_uint8_array(tf_task_get_context(socket->_task), (const uint8_t*)buffer, sizeof(buffer));
}
}
return JS_UNDEFINED;
}
static JSValue _socket_getNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
return JS_NewBool(context, socket->_noDelay);
}
static JSValue _socket_setNoDelay(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
socket_t* socket = JS_GetOpaque(this_val, _classId);
int result = JS_ToBool(context, argv[0]);
socket->_noDelay = result > 0;
uv_tcp_nodelay(&socket->_socket, result > 0 ? 1 : 0);
return JS_UNDEFINED;
}
static JSValue _sockets_get(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
JSValue array = JS_NewArray(context);
for (int i = 0; i < _sockets_count; i++)
{
socket_t* s = _sockets[i];
JSValue entry = JS_NewObject(context);
JS_SetPropertyStr(context, entry, "peer", JS_NewString(context, s->_peerName));
JS_SetPropertyStr(context, entry, "listening", JS_NewBool(context, s->_listening));
JS_SetPropertyStr(context, entry, "connected", JS_NewBool(context, s->_connected));
JS_SetPropertyStr(context, entry, "tls", JS_NewBool(context, s->_tls != NULL));
JS_SetPropertyStr(context, entry, "age_seconds", JS_NewFloat64(context, (uv_now(tf_task_get_loop(s->_task)) - s->created_ms) / 1000.0));
JS_SetPropertyUint32(context, array, i, entry);
}
return array;
}
static void _socket_resetTimeout(socket_t* socket)
{
if (socket->timeout_ms && socket->_active == 0)
{
uv_timer_start(&socket->_timer, _socket_timeout, socket->timeout_ms, 0);
}
}
static void _socket_pauseTimeout(socket_t* socket)
{
if (socket->_active++ == 1)
{
uv_timer_stop(&socket->_timer);
}
}
static void _socket_resumeTimeout(socket_t* socket)
{
if (--socket->_active == 0 && socket->timeout_ms > 0)
{
uv_timer_start(&socket->_timer, _socket_timeout, socket->timeout_ms, 0);
}
}