mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-11-22 22:17:31 +03:00
495 lines
25 KiB
JavaScript
495 lines
25 KiB
JavaScript
/*
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Copyright 2018 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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var promise = require('promise');
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var duplex = require('stream').Duplex;
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var SW_HIDE = 0;
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var SW_MINIMIZE = 6;
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var STARTF_USESHOWWINDOW = 0x1;
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var STD_INPUT_HANDLE = -10;
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var STD_OUTPUT_HANDLE = -11;
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var EVENT_CONSOLE_CARET = 0x4001;
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var EVENT_CONSOLE_END_APPLICATION = 0x4007;
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var WINEVENT_OUTOFCONTEXT = 0x000;
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var WINEVENT_SKIPOWNPROCESS = 0x0002;
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var CREATE_NEW_PROCESS_GROUP = 0x200;
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var EVENT_CONSOLE_UPDATE_REGION = 0x4002;
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var EVENT_CONSOLE_UPDATE_SIMPLE = 0x4003;
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var EVENT_CONSOLE_UPDATE_SCROLL = 0x4004;
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var EVENT_CONSOLE_LAYOUT = 0x4005;
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var EVENT_CONSOLE_START_APPLICATION = 0x4006;
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var KEY_EVENT = 0x1;
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var MAPVK_VK_TO_VSC = 0;
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var WM_QUIT = 0x12;
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var GM = require('_GenericMarshal');
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var si = GM.CreateVariable(GM.PointerSize == 4 ? 68 : 104);
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var pi = GM.CreateVariable(GM.PointerSize == 4 ? 16 : 24);
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si.Deref(0, 4).toBuffer().writeUInt32LE(GM.PointerSize == 4 ? 68 : 104); // si.cb
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si.Deref(GM.PointerSize == 4 ? 48 : 64, 2).toBuffer().writeUInt16LE(SW_HIDE | SW_MINIMIZE); // si.wShowWindow
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si.Deref(GM.PointerSize == 4 ? 44 : 60, 4).toBuffer().writeUInt32LE(STARTF_USESHOWWINDOW); // si.dwFlags;
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var MSG = GM.CreateVariable(GM.PointerSize == 4 ? 28 : 48);
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function windows_terminal() {
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this._ObjectID = 'windows_terminal';
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this._user32 = GM.CreateNativeProxy('User32.dll');
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this._user32.CreateMethod('DispatchMessageA');
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this._user32.CreateMethod('GetMessageA');
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this._user32.CreateMethod('MapVirtualKeyA');
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this._user32.CreateMethod('PostThreadMessageA');
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this._user32.CreateMethod('SetWinEventHook');
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this._user32.CreateMethod('ShowWindow');
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this._user32.CreateMethod('TranslateMessage');
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this._user32.CreateMethod('UnhookWinEvent');
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this._user32.CreateMethod('VkKeyScanA');
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this._user32.terminal = this;
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this._kernel32 = GM.CreateNativeProxy('Kernel32.dll');
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this._kernel32.CreateMethod('AllocConsole');
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this._kernel32.CreateMethod('CreateProcessA');
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this._kernel32.CreateMethod('CloseHandle');
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this._kernel32.CreateMethod('FillConsoleOutputAttribute');
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this._kernel32.CreateMethod('FillConsoleOutputCharacterA');
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this._kernel32.CreateMethod('GetConsoleScreenBufferInfo');
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this._kernel32.CreateMethod('GetConsoleWindow');
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this._kernel32.CreateMethod('GetLastError');
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this._kernel32.CreateMethod('GetStdHandle');
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this._kernel32.CreateMethod('GetThreadId');
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this._kernel32.CreateMethod('ReadConsoleOutputA');
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this._kernel32.CreateMethod('SetConsoleCursorPosition');
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this._kernel32.CreateMethod('SetConsoleScreenBufferSize');
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this._kernel32.CreateMethod('SetConsoleWindowInfo');
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this._kernel32.CreateMethod('TerminateProcess');
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this._kernel32.CreateMethod('WaitForSingleObject');
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this._kernel32.CreateMethod('WriteConsoleInputA');
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var currentX = 0;
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var currentY = 0;
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this._scrx = 0;
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this._scry = 0;
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this.SendCursorUpdate = function () {
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var newCsbi = GM.CreateVariable(22);
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if (this._kernel32.GetConsoleScreenBufferInfo(this._stdoutput, newCsbi).Val == 0) { return; }
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if (newCsbi.Deref(4, 2).toBuffer().readUInt16LE() != this.currentX || newCsbi.Deref(6, 2).toBuffer().readUInt16LE() != this.currentY) {
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//wchar_t mywbuf[512];
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//swprintf(mywbuf, 512, TEXT("csbi.dwCursorPosition.X = %d, csbi.dwCursorPosition.Y = %d, newCsbi.dwCursorPosition.X = %d, newCsbi.dwCursorPosition.Y = %d\r\n"), csbi.dwCursorPosition.X, csbi.dwCursorPosition.Y, newCsbi.dwCursorPosition.X, newCsbi.dwCursorPosition.Y);
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//OutputDebugString(mywbuf);
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//m_viewOffset = newCsbi.srWindow.Top;
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//WriteMoveCursor((SerialAgent *)this->sa, (char)(newCsbi.dwCursorPosition.Y - m_viewOffset), (char)(newCsbi.dwCursorPosition.X - m_viewOffset));
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//LowStackSendData((SerialAgent *)(this->sa), "", 0);
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this.currentX = newCsbi.Deref(4, 2).toBuffer().readUInt16LE();
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this.currentY = newCsbi.Deref(6, 2).toBuffer().readUInt16LE();
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}
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}
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this.ClearScreen = function () {
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var CONSOLE_SCREEN_BUFFER_INFO = GM.CreateVariable(22);
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if (this._kernel32.GetConsoleScreenBufferInfo(this._stdoutput, CONSOLE_SCREEN_BUFFER_INFO).Val == 0) { return; }
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var coordScreen = GM.CreateVariable(4);
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var dwConSize = CONSOLE_SCREEN_BUFFER_INFO.Deref(0, 2).toBuffer().readUInt16LE(0) * CONSOLE_SCREEN_BUFFER_INFO.Deref(2, 2).toBuffer().readUInt16LE(0);
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var cCharsWritten = GM.CreateVariable(4);
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// Fill the entire screen with blanks.
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if (this._kernel32.FillConsoleOutputCharacterA(this._stdoutput, 32, dwConSize, coordScreen.Deref(0, 4).toBuffer().readUInt32LE(), cCharsWritten).Val == 0) { return; }
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// Get the current text attribute.
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if (this._kernel32.GetConsoleScreenBufferInfo(this._stdoutput, CONSOLE_SCREEN_BUFFER_INFO).Val == 0) { return; }
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// Set the buffer's attributes accordingly.
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if (this._kernel32.FillConsoleOutputAttribute(this._stdoutput, CONSOLE_SCREEN_BUFFER_INFO.Deref(8, 2).toBuffer().readUInt16LE(0), dwConSize, coordScreen.Deref(0, 4).toBuffer().readUInt32LE(), cCharsWritten).Val == 0) { return; }
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// Put the cursor at its home coordinates.
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this._kernel32.SetConsoleCursorPosition(this._stdoutput, coordScreen.Deref(0, 4).toBuffer().readUInt32LE());
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// Put the window to top-left.
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var rect = GM.CreateVariable(8);
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var srWindow = CONSOLE_SCREEN_BUFFER_INFO.Deref(10, 8).toBuffer();
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rect.Deref(4, 2).toBuffer().writeUInt16LE(srWindow.readUInt16LE(4) - srWindow.readUInt16LE(0));
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rect.Deref(6, 2).toBuffer().writeUInt16LE(srWindow.readUInt16LE(6) - srWindow.readUInt16LE(2));
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this._kernel32.SetConsoleWindowInfo(this._stdoutput, 1, rect);
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}
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this.Start = function Start(CONSOLE_SCREEN_WIDTH, CONSOLE_SCREEN_HEIGHT) {
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if (this._kernel32.GetConsoleWindow().Val == 0) {
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if (this._kernel32.AllocConsole().Val == 0) {
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throw ('AllocConsole failed with: ' + this._kernel32.GetLastError().Val);
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}
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}
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this._stdinput = this._kernel32.GetStdHandle(STD_INPUT_HANDLE);
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this._stdoutput = this._kernel32.GetStdHandle(STD_OUTPUT_HANDLE);
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this._connected = false;
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var coordScreen = GM.CreateVariable(4);
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coordScreen.Deref(0, 2).toBuffer().writeUInt16LE(CONSOLE_SCREEN_WIDTH);
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coordScreen.Deref(2, 2).toBuffer().writeUInt16LE(CONSOLE_SCREEN_HEIGHT);
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var rect = GM.CreateVariable(8);
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rect.Deref(4, 2).toBuffer().writeUInt16LE(CONSOLE_SCREEN_WIDTH - 1);
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rect.Deref(6, 2).toBuffer().writeUInt16LE(CONSOLE_SCREEN_HEIGHT - 1);
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if (this._kernel32.SetConsoleWindowInfo(this._stdoutput, 1, rect).Val == 0) {
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throw ('Failed to set Console Screen Size');
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}
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if (this._kernel32.SetConsoleScreenBufferSize(this._stdoutput, coordScreen.Deref(0, 4).toBuffer().readUInt32LE()).Val == 0) {
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throw ('Failed to set Console Buffer Size');
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}
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// Hide the console window
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this._user32.ShowWindow(this._kernel32.GetConsoleWindow().Val, SW_HIDE);
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this.ClearScreen();
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this._hookThread().then(function () {
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// Hook Ready
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this.terminal.StartCommand();
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}, console.log);
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this._stream = new duplex({
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'write': function (chunk, flush) {
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if (!this.terminal.connected) {
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//console.log('_write: ' + chunk);
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if (!this._promise.chunk) {
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this._promise.chunk = [];
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}
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if (typeof (chunk) == 'string') {
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this._promise.chunk.push(chunk);
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} else {
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this._promise.chunk.push(Buffer.alloc(chunk.length));
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chunk.copy(this._promise.chunk.peek());
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}
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this._promise.chunk.peek().flush = flush;
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this._promise.then(function () {
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var buf;
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while (this.chunk.length > 0) {
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buf = this.chunk.shift();
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this.terminal._WriteBuffer(buf);
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buf.flush();
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}
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});
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}
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else {
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//console.log('writeNOW: ' + chunk);
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this.terminal._WriteBuffer(chunk);
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flush();
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}
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},
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'final': function (flush) {
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var p = this.terminal._stop();
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p.__flush = flush;
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p.then(function () { this.__flush(); });
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}
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});
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this._stream.terminal = this;
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this._stream._promise = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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this._stream._promise.terminal = this;
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return (this._stream);
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};
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this._stop = function () {
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if (this.stopping) { return (this.stopping); }
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//console.log('Stopping Terminal...');
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this.stopping = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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var threadID = this._kernel32.GetThreadId(this._user32.SetWinEventHook.async.thread()).Val;
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this._user32.PostThreadMessageA(threadID, WM_QUIT, 0, 0);
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return (this.stopping);
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}
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this._hookThread = function () {
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var ret = new promise(function (res, rej) { this._res = res; this._rej = rej; });
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ret.terminal = this;
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this._ConsoleWinEventProc = GM.GetGenericGlobalCallback(7);
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this._ConsoleWinEventProc.terminal = this;
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var p = this._user32.SetWinEventHook.async(EVENT_CONSOLE_CARET, EVENT_CONSOLE_END_APPLICATION, 0, this._ConsoleWinEventProc, 0, 0, WINEVENT_OUTOFCONTEXT | WINEVENT_SKIPOWNPROCESS);
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p.ready = ret;
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p.terminal = this;
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p.then(function (hwinEventHook) {
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if (hwinEventHook.Val == 0) {
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this.ready._rej('Error calling SetWinEventHook');
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} else {
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this.terminal.hwinEventHook = hwinEventHook;
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this.ready._res();
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this.terminal._GetMessage();
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}
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});
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this._ConsoleWinEventProc.on('GlobalCallback', function (hhook, dwEvent, hwnd, idObject, idChild, idEventThread, swmsEventTime) {
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if (!this.terminal.hwinEventHook || this.terminal.hwinEventHook.Val != hhook.Val) { return; }
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var buffer = null;
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switch (dwEvent.Val) {
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case EVENT_CONSOLE_CARET:
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break;
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case EVENT_CONSOLE_UPDATE_REGION:
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if (!this.terminal.connected) {
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this.terminal.connected = true;
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this.terminal._stream._promise._res();
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}
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if (this.terminal._scrollTimer == null) {
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buffer = this.terminal._GetScreenBuffer(LOWORD(idObject.Val), HIWORD(idObject.Val), LOWORD(idChild.Val), HIWORD(idChild.Val));
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//console.log('UPDATE REGION: [Left: ' + LOWORD(idObject.Val) + ' Top: ' + HIWORD(idObject.Val) + ' Right: ' + LOWORD(idChild.Val) + ' Bottom: ' + HIWORD(idChild.Val) + ']');
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this.terminal._SendDataBuffer(buffer);
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}
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break;
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case EVENT_CONSOLE_UPDATE_SIMPLE:
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//console.log('UPDATE SIMPLE: [X: ' + LOWORD(idObject.Val) + ' Y: ' + HIWORD(idObject.Val) + ' Char: ' + LOWORD(idChild.Val) + ' Attr: ' + HIWORD(idChild.Val) + ']');
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var simplebuffer = { data: [ Buffer.alloc(1, LOWORD(idChild.Val)) ], attributes: [ HIWORD(idChild.Val) ], width: 1, height: 1, x: LOWORD(idObject.Val), y: HIWORD(idObject.Val) };
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this.terminal._SendDataBuffer(simplebuffer);
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break;
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case EVENT_CONSOLE_UPDATE_SCROLL:
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//console.log('UPDATE SCROLL: [dx: ' + idObject.Val + ' dy: ' + idChild.Val + ']');
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this.terminal._SendScroll(idObject.Val, idChild.Val);
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break;
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case EVENT_CONSOLE_LAYOUT:
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//console.log('CONSOLE_LAYOUT');
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//snprintf( Buf, 512, "Event Console LAYOUT!\r\n");
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//SendLayout();
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break;
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case EVENT_CONSOLE_START_APPLICATION:
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//console.log('START APPLICATION: [PID: ' + idObject.Val + ' CID: ' + idChild.Val + ']');
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//snprintf( Buf, 512, "Event Console START APPLICATION!\r\nProcess ID: %d - Child ID: %d\r\n\r\n", (int)idObject, (int)idChild);
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//SendConsoleEvent(dwEvent, idObject, idChild);
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break;
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case EVENT_CONSOLE_END_APPLICATION:
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if (idObject.Val == this.terminal._hProcessID) {
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//console.log('END APPLICATION: [PID: ' + idObject.Val + ' CID: ' + idChild.Val + ']');
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this.terminal._stop().then(function () { console.log('STOPPED'); });
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}
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break;
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default:
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//snprintf(Buf, 512, "unknown console event.\r\n");
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console.log('Unknown event: ' + dwEvent.Val);
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break;
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}
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//mbstowcs_s(&l, wBuf, Buf, 512);
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//OutputDebugString(wBuf);
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});
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return (ret);
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}
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this._GetMessage = function () {
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if (this._user32.abort) { console.log('aborting loop'); return; }
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this._user32.GetMessageA.async(this._user32.SetWinEventHook.async, MSG, 0, 0, 0).then(function (ret) {
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//console.log('GetMessage Response');
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if (ret.Val != 0) {
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if (ret.Val == -1) {
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// handle the error and possibly exit
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} else {
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//console.log('TranslateMessage');
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this.nativeProxy._user32.TranslateMessage.async(this.nativeProxy.user32.SetWinEventHook.async, MSG).then(function () {
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//console.log('DispatchMessage');
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this.nativeProxy._user32.DispatchMessageA.async(this.nativeProxy.user32.SetWinEventHook.async, MSG).then(function () {
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this.nativeProxy.terminal._GetMessage();
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}, console.log);
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}, console.log);
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}
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} else {
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this.nativeProxy.UnhookWinEvent.async(this.nativeProxy.terminal._user32.SetWinEventHook.async, this.nativeProxy.terminal.hwinEventHook)
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.then(function () {
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this.nativeProxy.terminal.stopping._res();
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if (this.nativeProxy.terminal._kernel32.TerminateProcess(this.nativeProxy.terminal._hProcess, 1067).Val == 0) {
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var e = this.nativeProxy.terminal._kernel32.GetLastError().Val;
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console.log('Unable to kill Terminal Process, error: ' + e);
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}
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this.nativeProxy.terminal.stopping = null;
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}, function (err) {
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console.log('REJECTED_UnhookWinEvent: ' + err);
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});
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}
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}, function (err) {
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// Get Message Failed
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console.log('REJECTED_GETMessage: ' + err);
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});
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}
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this._WriteBuffer = function (buf) {
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for (var i = 0; i < buf.length; ++i) {
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if (typeof (buf) == 'string') {
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this._WriteCharacter(buf.charCodeAt(i), false);
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} else {
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this._WriteCharacter(buf[i], false);
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}
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}
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}
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this._WriteCharacter = function (key, bControlKey) {
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var rec = GM.CreateVariable(20);
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rec.Deref(0, 2).toBuffer().writeUInt16LE(KEY_EVENT); // rec.EventType
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rec.Deref(4, 4).toBuffer().writeUInt16LE(1); // rec.Event.KeyEvent.bKeyDown
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rec.Deref(16, 4).toBuffer().writeUInt32LE(bControlKey); // rec.Event.KeyEvent.dwControlKeyState
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rec.Deref(14, 1).toBuffer()[0] = key; // rec.Event.KeyEvent.uChar.AsciiChar
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rec.Deref(8, 2).toBuffer().writeUInt16LE(1); // rec.Event.KeyEvent.wRepeatCount
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rec.Deref(10, 2).toBuffer().writeUInt16LE(this._user32.VkKeyScanA(key).Val); // rec.Event.KeyEvent.wVirtualKeyCode
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rec.Deref(12, 2).toBuffer().writeUInt16LE(this._user32.MapVirtualKeyA(this._user32.VkKeyScanA(key).Val, MAPVK_VK_TO_VSC).Val);
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var dwWritten = GM.CreateVariable(4);
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if (this._kernel32.WriteConsoleInputA(this._stdinput, rec, 1, dwWritten).Val == 0) { return (false); }
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rec.Deref(4, 4).toBuffer().writeUInt16LE(0); // rec.Event.KeyEvent.bKeyDown
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return (this._kernel32.WriteConsoleInputA(this._stdinput, rec, 1, dwWritten).Val != 0);
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}
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// Get the current visible screen buffer
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this._GetScreenBuffer = function (sx, sy, ex, ey) {
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var info = GM.CreateVariable(22);
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if (this._kernel32.GetConsoleScreenBufferInfo(this._stdoutput, info).Val == 0) { throw ('Error getting screen buffer info'); }
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var nWidth = info.Deref(14, 2).toBuffer().readUInt16LE() - info.Deref(10, 2).toBuffer().readUInt16LE() + 1;
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var nHeight = info.Deref(16, 2).toBuffer().readUInt16LE() - info.Deref(12, 2).toBuffer().readUInt16LE() + 1;
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if (arguments[3] == null) {
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// Use Default Parameters
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sx = 0;
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sy = 0;
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ex = nWidth - 1;
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ey = nHeight - 1;
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} else {
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if (this._scrx != 0) { sx += this._scrx; ex += this._scrx; }
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if (this._scry != 0) { sy += this._scry; ey += this._scry; }
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this._scrx = this._scry = 0;
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}
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var nBuffer = GM.CreateVariable((ex - sx + 1) * (ey - sy + 1) * 4);
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var size = GM.CreateVariable(4);
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size.Deref(0, 2).toBuffer().writeUInt16LE(ex - sx + 1, 0);
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size.Deref(2, 2).toBuffer().writeUInt16LE(ey - sy + 1, 0);
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var startCoord = GM.CreateVariable(4);
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startCoord.Deref(0, 2).toBuffer().writeUInt16LE(0, 0);
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startCoord.Deref(2, 2).toBuffer().writeUInt16LE(0, 0);
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var region = GM.CreateVariable(8);
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region.buffer = region.toBuffer();
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region.buffer.writeUInt16LE(sx, 0);
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region.buffer.writeUInt16LE(sy, 2);
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region.buffer.writeUInt16LE(ex, 4);
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region.buffer.writeUInt16LE(ey, 6);
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if (this._kernel32.ReadConsoleOutputA(this._stdoutput, nBuffer, size.Deref(0, 4).toBuffer().readUInt32LE(), startCoord.Deref(0, 4).toBuffer().readUInt32LE(), region).Val == 0) {
|
|
throw ('Unable to read Console Output');
|
|
}
|
|
|
|
// Lets convert the buffer into something simpler
|
|
//var retVal = { data: Buffer.alloc((dw - dx + 1) * (dh - dy + 1)), attributes: Buffer.alloc((dw - dx + 1) * (dh - dy + 1)), width: dw - dx + 1, height: dh - dy + 1, x: dx, y: dy };
|
|
|
|
var retVal = { data: [], attributes: [], width: ex - sx + 1, height: ey - sy + 1, x: sx, y: sy };
|
|
var x, y, line, ifo, tmp, lineWidth = ex - sx + 1;
|
|
|
|
for (y = 0; y <= (ey - sy) ; ++y) {
|
|
retVal.data.push(Buffer.alloc(lineWidth));
|
|
retVal.attributes.push(Buffer.alloc(lineWidth));
|
|
|
|
line = nBuffer.Deref(y * lineWidth * 4, lineWidth * 4).toBuffer();
|
|
for (x = 0; x < lineWidth; ++x) {
|
|
retVal.data.peek()[x] = line[x * 4];
|
|
retVal.attributes.peek()[x] = line[2 + (x * 4)];
|
|
}
|
|
}
|
|
|
|
return (retVal);
|
|
}
|
|
|
|
this._SendDataBuffer = function (data) {
|
|
// { data, attributes, width, height, x, y }
|
|
|
|
var dy, line, attr;
|
|
for (dy = 0; dy < data.height; ++dy) {
|
|
line = data.data[dy];
|
|
attr = data.attributes[dy];
|
|
line.s = line.toString();
|
|
|
|
//line = data.data.slice(data.width * dy, (data.width * dy) + data.width);
|
|
//attr = data.attributes.slice(data.width * dy, (data.width * dy) + data.width);
|
|
this._stream.push(TranslateLine(data.x + 1, data.y + dy + 1, line, attr));
|
|
}
|
|
}
|
|
|
|
this._SendScroll = function _SendScroll(dx, dy) {
|
|
if (this._scrollTimer) { return; }
|
|
|
|
var info = GM.CreateVariable(22);
|
|
if (this._kernel32.GetConsoleScreenBufferInfo(this._stdoutput, info).Val == 0) { throw ('Error getting screen buffer info'); }
|
|
|
|
var nWidth = info.Deref(14, 2).toBuffer().readUInt16LE() - info.Deref(10, 2).toBuffer().readUInt16LE() + 1;
|
|
var nHeight = info.Deref(16, 2).toBuffer().readUInt16LE() - info.Deref(12, 2).toBuffer().readUInt16LE() + 1;
|
|
|
|
this._stream.push(GetEsc('H', [nHeight - 1, 0]));
|
|
for (var i = 0; i > nHeight; ++i) { this._stream.push(Buffer.from('\r\n')); }
|
|
|
|
var buffer = this._GetScreenBuffer(0, 0, nWidth - 1, nHeight - 1);
|
|
this._SendDataBuffer(buffer);
|
|
|
|
this._scrollTimer = setTimeout(function (self, nw, nh) {
|
|
var buffer = self._GetScreenBuffer(0, 0, nw - 1, nh - 1);
|
|
self._SendDataBuffer(buffer);
|
|
self._scrollTimer = null;
|
|
}, 250, this, nWidth, nHeight);
|
|
}
|
|
|
|
this.StartCommand = function StartCommand() {
|
|
if (this._kernel32.CreateProcessA(GM.CreateVariable(process.env['windir'] + '\\system32\\cmd.exe'), 0, 0, 0, 1, CREATE_NEW_PROCESS_GROUP, 0, 0, si, pi).Val == 0) {
|
|
console.log('Error Spawning CMD');
|
|
return;
|
|
}
|
|
|
|
this._kernel32.CloseHandle(pi.Deref(GM.PointerSize, GM.PointerSize).Deref()); // pi.hThread
|
|
this._hProcess = pi.Deref(0, GM.PointerSize).Deref(); // pi.hProcess
|
|
this._hProcessID = pi.Deref(GM.PointerSize == 4 ? 8 : 16, 4).toBuffer().readUInt32LE(); // pi.dwProcessId
|
|
//console.log('Ready => hProcess: ' + this._hProcess._ptr + ' PID: ' + this._hProcessID);
|
|
}
|
|
}
|
|
|
|
function LOWORD(val) { return (val & 0xFFFF); }
|
|
function HIWORD(val) { return ((val >> 16) & 0xFFFF); }
|
|
function GetEsc(op, args) { return (Buffer.from('\x1B[' + args.join(';') + op)); }
|
|
function MeshConsole(msg) { require('MeshAgent').SendCommand({ "action": "msg", "type": "console", "value": JSON.stringify(msg) }); }
|
|
function TranslateLine(x, y, data, attributes) {
|
|
var i, fcolor, bcolor, rcolor, fbright, bbright, lastAttr, fc, bc, rc, fb, bb, esc = [], output = [GetEsc('H', [y, x])];
|
|
if (typeof attributes == 'number') { attributes = [ attributes ]; } // If we get a single attribute, turn it into an array.
|
|
|
|
for (i = 0; i < data.length; i++) {
|
|
if (lastAttr != attributes[i]) { // To boost performance, if the attribute is the same as the last one, skip this entire part.
|
|
fc = (attributes[i] & 0x0007);
|
|
fc = ((fc & 0x0001) << 2) + (fc & 0x0002) + ((fc & 0x0004) >> 2); // Foreground color
|
|
bc = (attributes[i] & 0x0070) >> 4;
|
|
bc = ((bc & 0x0001) << 2) + (bc & 0x0002) + ((bc & 0x0004) >> 2); // Background color
|
|
rc = (attributes[i] & 0x4000); // Reverse color set
|
|
fb = (attributes[i] & 0x0008) >> 3; // Bright foreground set
|
|
bb = (attributes[i] & 0x0080); // Bright background set
|
|
|
|
if (rc != rcolor) { if (rc != 0) { esc.push(7); } else { esc.push(0); fcolor = 7; bcolor = 0; fbright = 0; bbright = 0; } rcolor = rc; } // Reverse Color
|
|
if (fc != fcolor) { esc.push(fc + 30); fcolor = fc; } // Set the foreground color if needed
|
|
if (bc != bcolor) { esc.push(bc + 40); bcolor = bc; } // Set the background color if needed
|
|
if (fb != fbright) { esc.push(2 - fb); fbright = fb; } // Set the bright foreground color if needed
|
|
if (bb != bbright) { if (bb == 0) { esc.push(bcolor + 40); } else { esc.push(bcolor + 100); bbright = bb; } } // Set bright Background color if needed
|
|
|
|
if (esc.length > 0) { output.push(GetEsc('m', esc)); esc = []; }
|
|
lastAttr = attributes[i];
|
|
}
|
|
output.push(Buffer.from(String.fromCharCode(data[i])));
|
|
}
|
|
|
|
return Buffer.concat(output);
|
|
}
|
|
|
|
module.exports = new windows_terminal(); |