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#include "root.h"
#include <uws/src/App.h>
#include <JavaScriptCore/InspectorFrontendChannel.h>
#include <JavaScriptCore/JSGlobalObjectDebuggable.h>
#include <JavaScriptCore/JSGlobalObjectDebugger.h>
#include <JavaScriptCore/Debugger.h>
extern "C" void Bun__tickWhilePaused(bool*);
namespace Bun {
using namespace JSC;
template<bool isSSL>
class BunInspectorConnection : public Inspector::FrontendChannel {
public:
using BunInspectorSocket = uWS::WebSocket<isSSL, true, BunInspectorConnection*>;
BunInspectorConnection(BunInspectorSocket* ws, JSC::JSGlobalObject* globalObject)
: ws(ws)
, globalObject(globalObject)
, pendingMessages()
{
}
~BunInspectorConnection()
{
}
Inspector::FrontendChannel::ConnectionType connectionType() const override
{
return Inspector::FrontendChannel::ConnectionType::Remote;
}
void onOpen(JSC::JSGlobalObject* globalObject)
{
this->globalObject = globalObject;
this->globalObject->inspectorDebuggable().connect(*this);
Inspector::JSGlobalObjectDebugger* debugger = reinterpret_cast<Inspector::JSGlobalObjectDebugger*>(this->globalObject->debugger());
if (debugger) {
debugger->runWhilePausedCallback = [](JSC::JSGlobalObject& globalObject, bool& isPaused) -> void {
Bun__tickWhilePaused(&isPaused);
};
}
}
void onClose()
{
this->globalObject->inspectorDebuggable().disconnect(*this);
this->pendingMessages.clear();
}
void sendMessageToFrontend(const String& message) override
{
send(message);
}
void send(const WTF::String& message)
{
if (ws->getBufferedAmount() == 0) {
WTF::CString messageCString = message.utf8();
ws->send(std::string_view { messageCString.data(), messageCString.length() }, uWS::OpCode::TEXT);
} else {
pendingMessages.append(message);
}
}
void onMessage(std::string_view message)
{
WTF::String messageString = WTF::String::fromUTF8(message.data(), message.length());
Inspector::JSGlobalObjectDebugger* debugger = reinterpret_cast<Inspector::JSGlobalObjectDebugger*>(this->globalObject->debugger());
if (debugger) {
debugger->runWhilePausedCallback = [](JSC::JSGlobalObject& globalObject, bool& done) -> void {
Inspector::JSGlobalObjectDebugger* debugger = reinterpret_cast<Inspector::JSGlobalObjectDebugger*>(globalObject.debugger());
Bun__tickWhilePaused(&done);
};
}
this->globalObject->inspectorDebuggable().dispatchMessageFromRemote(WTFMove(messageString));
}
void drain()
{
if (pendingMessages.size() == 0)
return;
if (ws->getBufferedAmount() == 0) {
ws->cork([&]() {
for (auto& message : pendingMessages) {
WTF::CString messageCString = message.utf8();
ws->send(std::string_view { messageCString.data(), messageCString.length() }, uWS::OpCode::TEXT);
}
pendingMessages.clear();
});
}
}
WTF::Vector<WTF::String> pendingMessages;
JSC::JSGlobalObject* globalObject;
BunInspectorSocket* ws;
};
using BunInspectorConnectionNoSSL = BunInspectorConnection<false>;
using SSLBunInspectorConnection = BunInspectorConnection<true>;
template<bool isSSL>
static void addInspector(void* app, JSC::JSGlobalObject* globalObject)
{
if constexpr (isSSL) {
auto handler = uWS::SSLApp::WebSocketBehavior<SSLBunInspectorConnection*> {
/* Settings */
.compression = uWS::DISABLED,
.maxPayloadLength = 16 * 1024 * 1024,
.idleTimeout = 960,
.maxBackpressure = 16 * 1024 * 1024,
.closeOnBackpressureLimit = false,
.resetIdleTimeoutOnSend = true,
.sendPingsAutomatically = true,
/* Handlers */
.upgrade = nullptr,
.open = [globalObject](auto* ws) {
globalObject->setInspectable(true);
*ws->getUserData() = new SSLBunInspectorConnection(ws, globalObject);
SSLBunInspectorConnection* inspector = *ws->getUserData();
inspector->onOpen(globalObject);
//
},
.message = [](auto* ws, std::string_view message, uWS::OpCode opCode) {
SSLBunInspectorConnection* inspector = *(SSLBunInspectorConnection**)ws->getUserData();
inspector->onMessage(message);
//
},
.drain = [](auto* ws) {
SSLBunInspectorConnection* inspector = *(SSLBunInspectorConnection**)ws->getUserData();
inspector->drain();
//
},
.ping = [](auto* /*ws*/, std::string_view) {
/* Not implemented yet */ },
.pong = [](auto* /*ws*/, std::string_view) {
/* Not implemented yet */ },
.close = [](auto* ws, int /*code*/, std::string_view /*message*/) {
SSLBunInspectorConnection* inspector = *(SSLBunInspectorConnection**)ws->getUserData();
inspector->onClose();
delete inspector; }
};
((uWS::SSLApp*)app)->ws<SSLBunInspectorConnection*>("/bun:inspect", std::move(handler));
} else {
auto handler = uWS::App::WebSocketBehavior<BunInspectorConnectionNoSSL*> {
/* Settings */
.compression = uWS::DISABLED,
.maxPayloadLength = 16 * 1024 * 1024,
.idleTimeout = 960,
.maxBackpressure = 16 * 1024 * 1024,
.closeOnBackpressureLimit = false,
.resetIdleTimeoutOnSend = true,
.sendPingsAutomatically = true,
/* Handlers */
.upgrade = nullptr,
.open = [globalObject](auto* ws) {
globalObject->setInspectable(true);
*ws->getUserData() = new BunInspectorConnectionNoSSL(ws, globalObject);
BunInspectorConnectionNoSSL* inspector = *ws->getUserData();
inspector->onOpen(globalObject);
//
},
.message = [](auto* ws, std::string_view message, uWS::OpCode opCode) {
BunInspectorConnectionNoSSL* inspector = *(BunInspectorConnectionNoSSL**)ws->getUserData();
inspector->onMessage(message);
//
},
.drain = [](auto* ws) {
BunInspectorConnectionNoSSL* inspector = *(BunInspectorConnectionNoSSL**)ws->getUserData();
inspector->drain();
//
},
.ping = [](auto* /*ws*/, std::string_view) {
/* Not implemented yet */ },
.pong = [](auto* /*ws*/, std::string_view) {
/* Not implemented yet */ },
.close = [](auto* ws, int /*code*/, std::string_view /*message*/) {
BunInspectorConnectionNoSSL* inspector = *(BunInspectorConnectionNoSSL**)ws->getUserData();
inspector->onClose();
delete inspector; }
};
((uWS::App*)app)->ws<BunInspectorConnectionNoSSL*>("/bun:inspect", std::move(handler));
}
}
extern "C" void Bun__addInspector(bool isSSL, void* app, JSC::JSGlobalObject* globalObject)
{
if (isSSL) {
addInspector<true>((uWS::TemplatedApp<true>*)app, globalObject);
} else {
addInspector<false>((uWS::TemplatedApp<false>*)app, globalObject);
}
};
}
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