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#include "NodeJSSocket.h"
#include "NodeJSDebugger.h"
#include "file_logger.h"
#include "NodeJSHandlerBase.h"
#include <wx/regex.h>
NodeJSSocket::NodeJSSocket(NodeJSDebugger* debugger)
: m_socket(this)
, m_connected(false)
, m_sequence(0)
, m_debugger(debugger)
, m_firstTimeConnected(true)
{
Bind(wxEVT_ASYNC_SOCKET_CONNECTED, &NodeJSSocket::OnSocketConnected, this);
Bind(wxEVT_ASYNC_SOCKET_ERROR, &NodeJSSocket::OnSocketError, this);
Bind(wxEVT_ASYNC_SOCKET_CONNECTION_LOST, &NodeJSSocket::OnSocketConnectionLost, this);
Bind(wxEVT_ASYNC_SOCKET_INPUT, &NodeJSSocket::OnSocketInput, this);
Bind(wxEVT_ASYNC_SOCKET_CONNECT_ERROR, &NodeJSSocket::OnSocketConnectError, this);
// set of commands that we don't ask for backtrace
// from Node.js after their execution
m_noBacktraceCommands.insert("backtrace");
m_noBacktraceCommands.insert("setbreakpoint");
m_noBacktraceCommands.insert("frame");
m_noBacktraceCommands.insert("source");
m_noBacktraceCommands.insert("evaluate");
m_noBacktraceCommands.insert("lookup");
}
NodeJSSocket::~NodeJSSocket() { Destroy(); }
void NodeJSSocket::OnSocketConnected(clCommandEvent& event)
{
CL_DEBUG("CodeLite >>>> Connection established with Node.js");
// socket is now connected
m_debugger->CallAfter(&NodeJSDebugger::ConnectionEstablished);
m_connected = true;
}
void NodeJSSocket::OnSocketError(clCommandEvent& event)
{
m_errorString = event.GetString();
CL_DEBUG("Socket error: %s", m_errorString);
Destroy();
m_debugger->CallAfter(&NodeJSDebugger::ConnectionLost, m_errorString);
}
void NodeJSSocket::OnSocketConnectionLost(clCommandEvent& event)
{
CL_DEBUG("CodeLite >>>> Lost connection to Node.js");
Destroy();
m_debugger->CallAfter(&NodeJSDebugger::ConnectionLost, m_errorString);
}
void NodeJSSocket::OnSocketInput(clCommandEvent& event)
{
CL_DEBUG("CodeLite >>>> Got something on the socket...");
m_inBuffer << event.GetString();
CL_DEBUG("Node.js <<<< %s", m_inBuffer);
ProcessInputBuffer();
}
void NodeJSSocket::OnSocketConnectError(clCommandEvent& event)
{
CL_DEBUG("CodeLite >>>> connect error");
m_errorString = event.GetString();
m_debugger->CallAfter(&NodeJSDebugger::ConnectError, m_errorString);
Destroy();
}
void NodeJSSocket::Destroy()
{
Unbind(wxEVT_ASYNC_SOCKET_CONNECTED, &NodeJSSocket::OnSocketConnected, this);
Unbind(wxEVT_ASYNC_SOCKET_ERROR, &NodeJSSocket::OnSocketError, this);
Unbind(wxEVT_ASYNC_SOCKET_CONNECTION_LOST, &NodeJSSocket::OnSocketConnectionLost, this);
Unbind(wxEVT_ASYNC_SOCKET_INPUT, &NodeJSSocket::OnSocketInput, this);
Unbind(wxEVT_ASYNC_SOCKET_CONNECT_ERROR, &NodeJSSocket::OnSocketInput, this);
m_socket.Disconnect();
m_firstTimeConnected = true;
m_connected = false;
CL_DEBUG("CodeLite >>>> Cleaning up socket with Node.js");
}
void NodeJSSocket::WriteReply(const wxString& reply)
{
if(!IsConnected()) return;
wxString content;
content << "Content-Length:" << reply.length() << "\r\n\r\n";
content << reply;
m_socket.Send(content);
}
void NodeJSSocket::ProcessInputBuffer()
{
if(m_firstTimeConnected) {
m_firstTimeConnected = false;
// Apply breakpoints
m_debugger->SetBreakpoints();
// When an uncaught exception is thrown, break
m_debugger->BreakOnException();
m_inBuffer.Clear();
// Let codelite know that we have control
m_debugger->GotControl(true);
} else {
wxString buffer = GetResponse();
while(!buffer.IsEmpty()) {
JSONRoot root(buffer);
JSONElement json = root.toElement();
int reqSeq = json.namedObject("request_seq").toInt();
if(reqSeq != wxNOT_FOUND) {
std::map<size_t, NodeJSHandlerBase::Ptr_t>::iterator iter = m_handlers.find((size_t)reqSeq);
if(iter != m_handlers.end()) {
NodeJSHandlerBase::Ptr_t handler = iter->second;
handler->Process(m_debugger, buffer);
m_handlers.erase(iter);
}
if(json.hasNamedObject("running") && !json.namedObject("running").toBool()) {
wxString responseCommand = json.namedObject("command").toString();
m_debugger->GotControl((m_noBacktraceCommands.count(responseCommand) == 0));
} else {
m_debugger->SetCanInteract(false);
}
} else {
// Notify the debugger that we got control
if((json.namedObject("type").toString() == "event")) {
if(json.namedObject("event").toString() == "break") {
// breakpoint hit, notify we got control + request for backtrace
m_debugger->GotControl(true);
} else if(json.namedObject("event").toString() == "exception") {
JSONElement body = json.namedObject("body");
NodeJSDebuggerException exc;
exc.message = body.namedObject("exception").namedObject("text").toString();
;
exc.line = body.namedObject("sourceLine").toInt();
exc.script = body.namedObject("script").namedObject("name").toString();
exc.column = body.namedObject("sourceColumn").toInt();
// the vm execution stopped due to an exception
m_debugger->ExceptionThrown(exc);
}
} else {
m_debugger->SetCanInteract(false);
}
}
// Check to see if we got more reponses in the in-buffer
buffer = GetResponse();
}
}
}
void NodeJSSocket::Connect(const wxString& ip, int port)
{
m_socket.Connect((wxString() << "tcp://" << ip << ":" << port), "");
}
void NodeJSSocket::WriteRequest(JSONElement& request, NodeJSHandlerBase::Ptr_t handler)
{
if(!IsConnected()) return;
size_t seq = NextSequence();
request.addProperty("seq", seq);
wxString content, str;
str = request.format();
content << "Content-Length:" << str.length() << "\r\n\r\n";
content << str;
CL_DEBUG("CodeLite >>>> %s", content);
m_socket.Send(content);
// Keep the handler
if(handler) {
m_handlers.insert(std::make_pair(seq, handler));
}
}
wxString NodeJSSocket::GetResponse()
{
wxRegEx re("Content-Length:[ ]*([0-9]+)", wxRE_ADVANCED);
if(re.Matches(m_inBuffer)) {
size_t start, wholeline_len;
if(!re.GetMatch(&start, &wholeline_len, 0)) {
return "";
}
// Remove anything before the 'start' position
m_inBuffer = m_inBuffer.Mid(start);
// At this point, start = 0
start = 0;
wxString wholine = m_inBuffer.Mid(start, wholeline_len);
// wholine should now contains a string like:
// Content-Length: 1234
// Extract the message length
wxRegEx reContentLen("[0-9]+");
if(!reContentLen.Matches(wholine)) return ""; // Can't happen...
long messageLength;
if(!reContentLen.GetMatch(wholine).ToCLong(&messageLength)) {
// just to be safe
return "";
}
// Remove the "Content-Length: NN\r\n\r\n"
size_t headerLen = wholeline_len + 4;
// Did we read enough from the socket to process?
if(m_inBuffer.length() >= (messageLength + headerLen)) {
m_inBuffer = m_inBuffer.Mid(headerLen);
wxString response = m_inBuffer.Mid(0, messageLength);
// Remove this message from the input buffer
m_inBuffer = m_inBuffer.Mid(messageLength);
return response;
} else {
return "";
}
}
return "";
}
void NodeJSSocket::Shutdown() { m_socket.Disconnect(); }
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