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https://github.com/lihop/godot-xterm.git
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Add original files from the node-pty project
Taken from <https://github.com/microsoft/node-pty>. See the LICENSE.md file added in this commit for license and copyright information.
This commit is contained in:
Leroy Hopson
Leroy Hopson
parent
5a290e927a
commit
9c20579bc6
7 changed files with 1734 additions and 0 deletions
312
addons/godot_xterm/native/src/node_pty/win/winpty.cc
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312
addons/godot_xterm/native/src/node_pty/win/winpty.cc
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@ -0,0 +1,312 @@
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/**
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* Copyright (c) 2013-2015, Christopher Jeffrey, Peter Sunde (MIT License)
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* Copyright (c) 2016, Daniel Imms (MIT License).
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* Copyright (c) 2018, Microsoft Corporation (MIT License).
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*
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* pty.cc:
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* This file is responsible for starting processes
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* with pseudo-terminal file descriptors.
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*/
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#include <iostream>
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#include <nan.h>
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#include <Shlwapi.h> // PathCombine, PathIsRelative
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#include <sstream>
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include <vector>
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#include <winpty.h>
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#include "path_util.h"
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/**
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* Misc
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*/
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extern "C" void init(v8::Local<v8::Object>);
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#define WINPTY_DBG_VARIABLE TEXT("WINPTYDBG")
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/**
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* winpty
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*/
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static std::vector<winpty_t *> ptyHandles;
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static volatile LONG ptyCounter;
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/**
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* Helpers
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*/
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static winpty_t *get_pipe_handle(int handle) {
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for (size_t i = 0; i < ptyHandles.size(); ++i) {
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winpty_t *ptyHandle = ptyHandles[i];
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int current = (int)winpty_agent_process(ptyHandle);
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if (current == handle) {
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return ptyHandle;
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}
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}
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return nullptr;
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}
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static bool remove_pipe_handle(int handle) {
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for (size_t i = 0; i < ptyHandles.size(); ++i) {
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winpty_t *ptyHandle = ptyHandles[i];
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if ((int)winpty_agent_process(ptyHandle) == handle) {
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winpty_free(ptyHandle);
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ptyHandles.erase(ptyHandles.begin() + i);
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ptyHandle = nullptr;
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return true;
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}
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}
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return false;
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}
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void throw_winpty_error(const char *generalMsg, winpty_error_ptr_t error_ptr) {
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std::stringstream why;
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std::wstring msg(winpty_error_msg(error_ptr));
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std::string msg_(msg.begin(), msg.end());
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why << generalMsg << ": " << msg_;
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Nan::ThrowError(why.str().c_str());
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winpty_error_free(error_ptr);
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}
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static NAN_METHOD(PtyGetExitCode) {
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Nan::HandleScope scope;
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if (info.Length() != 1 ||
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!info[0]->IsNumber()) {
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Nan::ThrowError("Usage: pty.getExitCode(pidHandle)");
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return;
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}
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DWORD exitCode = 0;
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GetExitCodeProcess((HANDLE)info[0]->IntegerValue(Nan::GetCurrentContext()).FromJust(), &exitCode);
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info.GetReturnValue().Set(Nan::New<v8::Number>(exitCode));
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}
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static NAN_METHOD(PtyGetProcessList) {
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Nan::HandleScope scope;
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if (info.Length() != 1 ||
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!info[0]->IsNumber()) {
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Nan::ThrowError("Usage: pty.getProcessList(pid)");
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return;
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}
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int pid = info[0]->Int32Value(Nan::GetCurrentContext()).FromJust();
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winpty_t *pc = get_pipe_handle(pid);
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if (pc == nullptr) {
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info.GetReturnValue().Set(Nan::New<v8::Array>(0));
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return;
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}
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int processList[64];
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const int processCount = 64;
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int actualCount = winpty_get_console_process_list(pc, processList, processCount, nullptr);
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v8::Local<v8::Array> result = Nan::New<v8::Array>(actualCount);
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for (uint32_t i = 0; i < actualCount; i++) {
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Nan::Set(result, i, Nan::New<v8::Number>(processList[i]));
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}
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info.GetReturnValue().Set(result);
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}
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static NAN_METHOD(PtyStartProcess) {
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Nan::HandleScope scope;
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if (info.Length() != 7 ||
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!info[0]->IsString() ||
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!info[1]->IsString() ||
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!info[2]->IsArray() ||
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!info[3]->IsString() ||
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!info[4]->IsNumber() ||
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!info[5]->IsNumber() ||
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!info[6]->IsBoolean()) {
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Nan::ThrowError("Usage: pty.startProcess(file, cmdline, env, cwd, cols, rows, debug)");
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return;
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}
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std::stringstream why;
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const wchar_t *filename = path_util::to_wstring(Nan::Utf8String(info[0]));
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const wchar_t *cmdline = path_util::to_wstring(Nan::Utf8String(info[1]));
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const wchar_t *cwd = path_util::to_wstring(Nan::Utf8String(info[3]));
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// create environment block
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std::wstring env;
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const v8::Local<v8::Array> envValues = v8::Local<v8::Array>::Cast(info[2]);
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if (!envValues.IsEmpty()) {
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std::wstringstream envBlock;
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for(uint32_t i = 0; i < envValues->Length(); i++) {
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std::wstring envValue(path_util::to_wstring(Nan::Utf8String(Nan::Get(envValues, i).ToLocalChecked())));
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envBlock << envValue << L'\0';
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}
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env = envBlock.str();
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}
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// use environment 'Path' variable to determine location of
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// the relative path that we have recieved (e.g cmd.exe)
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std::wstring shellpath;
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if (::PathIsRelativeW(filename)) {
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shellpath = path_util::get_shell_path(filename);
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} else {
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shellpath = filename;
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}
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std::string shellpath_(shellpath.begin(), shellpath.end());
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if (shellpath.empty() || !path_util::file_exists(shellpath)) {
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why << "File not found: " << shellpath_;
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Nan::ThrowError(why.str().c_str());
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goto cleanup;
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}
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int cols = info[4]->Int32Value(Nan::GetCurrentContext()).FromJust();
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int rows = info[5]->Int32Value(Nan::GetCurrentContext()).FromJust();
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bool debug = Nan::To<bool>(info[6]).FromJust();
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// Enable/disable debugging
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SetEnvironmentVariable(WINPTY_DBG_VARIABLE, debug ? "1" : NULL); // NULL = deletes variable
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// Create winpty config
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winpty_error_ptr_t error_ptr = nullptr;
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winpty_config_t* winpty_config = winpty_config_new(0, &error_ptr);
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if (winpty_config == nullptr) {
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throw_winpty_error("Error creating WinPTY config", error_ptr);
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goto cleanup;
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}
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winpty_error_free(error_ptr);
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// Set pty size on config
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winpty_config_set_initial_size(winpty_config, cols, rows);
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// Start the pty agent
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winpty_t *pc = winpty_open(winpty_config, &error_ptr);
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winpty_config_free(winpty_config);
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if (pc == nullptr) {
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throw_winpty_error("Error launching WinPTY agent", error_ptr);
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goto cleanup;
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}
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winpty_error_free(error_ptr);
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// Save pty struct for later use
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ptyHandles.insert(ptyHandles.end(), pc);
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// Create winpty spawn config
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winpty_spawn_config_t* config = winpty_spawn_config_new(WINPTY_SPAWN_FLAG_AUTO_SHUTDOWN, shellpath.c_str(), cmdline, cwd, env.c_str(), &error_ptr);
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if (config == nullptr) {
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throw_winpty_error("Error creating WinPTY spawn config", error_ptr);
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goto cleanup;
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}
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winpty_error_free(error_ptr);
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// Spawn the new process
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HANDLE handle = nullptr;
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BOOL spawnSuccess = winpty_spawn(pc, config, &handle, nullptr, nullptr, &error_ptr);
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winpty_spawn_config_free(config);
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if (!spawnSuccess) {
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throw_winpty_error("Unable to start terminal process", error_ptr);
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goto cleanup;
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}
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winpty_error_free(error_ptr);
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// Set return values
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v8::Local<v8::Object> marshal = Nan::New<v8::Object>();
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Nan::Set(marshal, Nan::New<v8::String>("innerPid").ToLocalChecked(), Nan::New<v8::Number>((int)GetProcessId(handle)));
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Nan::Set(marshal, Nan::New<v8::String>("innerPidHandle").ToLocalChecked(), Nan::New<v8::Number>((int)handle));
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Nan::Set(marshal, Nan::New<v8::String>("pid").ToLocalChecked(), Nan::New<v8::Number>((int)winpty_agent_process(pc)));
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Nan::Set(marshal, Nan::New<v8::String>("pty").ToLocalChecked(), Nan::New<v8::Number>(InterlockedIncrement(&ptyCounter)));
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Nan::Set(marshal, Nan::New<v8::String>("fd").ToLocalChecked(), Nan::New<v8::Number>(-1));
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{
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LPCWSTR coninPipeName = winpty_conin_name(pc);
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std::wstring coninPipeNameWStr(coninPipeName);
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std::string coninPipeNameStr(coninPipeNameWStr.begin(), coninPipeNameWStr.end());
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Nan::Set(marshal, Nan::New<v8::String>("conin").ToLocalChecked(), Nan::New<v8::String>(coninPipeNameStr).ToLocalChecked());
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LPCWSTR conoutPipeName = winpty_conout_name(pc);
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std::wstring conoutPipeNameWStr(conoutPipeName);
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std::string conoutPipeNameStr(conoutPipeNameWStr.begin(), conoutPipeNameWStr.end());
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Nan::Set(marshal, Nan::New<v8::String>("conout").ToLocalChecked(), Nan::New<v8::String>(conoutPipeNameStr).ToLocalChecked());
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}
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info.GetReturnValue().Set(marshal);
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goto cleanup;
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cleanup:
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delete filename;
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delete cmdline;
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delete cwd;
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}
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static NAN_METHOD(PtyResize) {
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Nan::HandleScope scope;
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if (info.Length() != 3 ||
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!info[0]->IsNumber() ||
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!info[1]->IsNumber() ||
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!info[2]->IsNumber()) {
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Nan::ThrowError("Usage: pty.resize(pid, cols, rows)");
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return;
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}
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int handle = info[0]->Int32Value(Nan::GetCurrentContext()).FromJust();
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int cols = info[1]->Int32Value(Nan::GetCurrentContext()).FromJust();
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int rows = info[2]->Int32Value(Nan::GetCurrentContext()).FromJust();
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winpty_t *pc = get_pipe_handle(handle);
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if (pc == nullptr) {
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Nan::ThrowError("The pty doesn't appear to exist");
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return;
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}
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BOOL success = winpty_set_size(pc, cols, rows, nullptr);
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if (!success) {
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Nan::ThrowError("The pty could not be resized");
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return;
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}
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return info.GetReturnValue().SetUndefined();
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}
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static NAN_METHOD(PtyKill) {
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Nan::HandleScope scope;
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if (info.Length() != 2 ||
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!info[0]->IsNumber() ||
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!info[1]->IsNumber()) {
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Nan::ThrowError("Usage: pty.kill(pid, innerPidHandle)");
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return;
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}
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int handle = info[0]->Int32Value(Nan::GetCurrentContext()).FromJust();
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HANDLE innerPidHandle = (HANDLE)info[1]->Int32Value(Nan::GetCurrentContext()).FromJust();
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winpty_t *pc = get_pipe_handle(handle);
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if (pc == nullptr) {
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Nan::ThrowError("Pty seems to have been killed already");
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return;
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}
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assert(remove_pipe_handle(handle));
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CloseHandle(innerPidHandle);
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return info.GetReturnValue().SetUndefined();
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}
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/**
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* Init
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*/
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extern "C" void init(v8::Local<v8::Object> target) {
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Nan::HandleScope scope;
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Nan::SetMethod(target, "startProcess", PtyStartProcess);
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Nan::SetMethod(target, "resize", PtyResize);
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Nan::SetMethod(target, "kill", PtyKill);
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Nan::SetMethod(target, "getExitCode", PtyGetExitCode);
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Nan::SetMethod(target, "getProcessList", PtyGetProcessList);
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};
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NODE_MODULE(pty, init);
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