419 lines
12 KiB
JavaScript
419 lines
12 KiB
JavaScript
const { app, BrowserWindow, ipcMain } = require("electron");
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const path = require("path");
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const https = require("https");
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const http = require("http");
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const fs = require("fs");
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const os = require("os");
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const ptp = require("pdf-to-printer");
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let mainWindow = null;
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const { Worker } = require("worker_threads");
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const log = require("electron-log");
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// 配置日志输出
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log.transports.file.level = "info";
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log.transports.file.resolvePath = () =>
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path.join(path.dirname(app.getPath("exe")), "logs", "main.log");
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log.info("App starting...");
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// 监听渲染进程日志
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ipcMain.on("log-message", (event, { level, message }) => {
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if (log[level]) {
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log[level](`[Renderer] ${message}`);
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} else {
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log.info(`[Renderer] ${message}`);
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}
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});
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let idCardWorker = null;
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function createIdCardWorker() {
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if (idCardWorker) return;
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log.info("Creating IDCard Worker...");
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idCardWorker = new Worker(path.join(__dirname, "idcard-worker.js"));
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idCardWorker.on("message", (msg) => {
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if (!mainWindow) return;
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if (msg.type === "data") {
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log.info("IDCard data received");
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mainWindow.webContents.send("idcard-data", { payload: msg.payload });
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} else if (msg.type === "error") {
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log.error("IDCard worker error message:", msg.payload);
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mainWindow.webContents.send("idcard-error", { payload: msg.payload });
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} else if (msg.type === "log") {
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log.info("[Worker]", msg.payload);
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}
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});
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idCardWorker.on("error", (err) => {
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log.error("Worker thread error:", err);
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});
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idCardWorker.on("exit", (code) => {
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if (code !== 0) log.error(`Worker stopped with exit code ${code}`);
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else log.info("Worker stopped gracefully");
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idCardWorker = null;
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});
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}
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function createWindow() {
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mainWindow = new BrowserWindow({
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width: 1080,
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height: 1920,
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fullscreen: true, // 全屏
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frame: false, // 无边框
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icon: path.join(__dirname, "../resources/icon.ico"), // 设置窗口图标
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webPreferences: {
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preload: path.join(__dirname, "preload.js"),
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nodeIntegration: false,
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contextIsolation: true,
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},
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});
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// 启用触摸事件支持（Windows 触摸屏）
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mainWindow.webContents.on("did-finish-load", () => {
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// 注入触摸事件支持脚本
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mainWindow.webContents
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.executeJavaScript(
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`
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// 确保触摸事件可用
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if (navigator.maxTouchPoints === 0) {
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console.log('[Electron] 未检测到触摸设备，将使用鼠标事件模拟');
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} else {
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console.log('[Electron] 检测到触摸设备，触摸点数:', navigator.maxTouchPoints);
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}
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`
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)
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.catch((err) => log.error("Failed to inject touch support:", err));
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});
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const isDev = !app.isPackaged;
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if (isDev) {
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mainWindow.loadURL("http://localhost:5173");
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// 打开开发者工具
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mainWindow.webContents.openDevTools();
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} else {
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mainWindow.loadFile(path.join(__dirname, "../dist/index.html"));
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}
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}
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// 处理PDF获取请求（绕过CORS）
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ipcMain.handle("fetch-pdf", async (event, pdfUrl) => {
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return new Promise((resolve, reject) => {
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const protocol = pdfUrl.startsWith("https") ? https : http;
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protocol
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.get(pdfUrl, (response) => {
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// 处理重定向
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if (response.statusCode === 301 || response.statusCode === 302) {
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const redirectUrl = response.headers.location;
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protocol
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.get(redirectUrl, (redirectResponse) => {
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const chunks = [];
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redirectResponse.on("data", (chunk) => chunks.push(chunk));
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redirectResponse.on("end", () => {
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const buffer = Buffer.concat(chunks);
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resolve({
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success: true,
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data: buffer.toString("base64"),
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});
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});
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redirectResponse.on("error", (error) => {
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reject({ success: false, error: error.message });
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});
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})
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.on("error", (error) => {
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reject({ success: false, error: error.message });
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});
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} else {
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const chunks = [];
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response.on("data", (chunk) => chunks.push(chunk));
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response.on("end", () => {
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const buffer = Buffer.concat(chunks);
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resolve({
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success: true,
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data: buffer.toString("base64"),
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});
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});
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response.on("error", (error) => {
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reject({ success: false, error: error.message });
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});
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}
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})
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.on("error", (error) => {
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reject({ success: false, error: error.message });
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});
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});
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});
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ipcMain.handle("get-printers", async (event) => {
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try {
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const webContents = event.sender;
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if (!webContents) {
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return { success: false, error: "No webContents available" };
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}
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if (typeof webContents.getPrintersAsync === "function") {
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const printers = await webContents.getPrintersAsync();
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return { success: true, printers };
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}
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const printers = webContents.getPrinters();
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return { success: true, printers };
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} catch (error) {
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log.error("Failed to get printers:", error);
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return { success: false, error: error.message };
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}
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});
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// 处理PDF打印请求
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ipcMain.handle("print-pdf", async (event, pdfDataOrUrl, printOptions = {}) => {
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let tempFilePath = null;
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const targetPrinterName = printOptions?.printerName;
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try {
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let pdfFilePath = null;
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// 如果是 base64 data URI，转换为临时文件
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if (pdfDataOrUrl.startsWith("data:application/pdf;base64,")) {
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const base64Data = pdfDataOrUrl.replace(
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"data:application/pdf;base64,",
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""
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);
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// 清理base64字符串中的空白字符
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const cleanBase64 = base64Data.replace(/\s/g, "");
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try {
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const buffer = Buffer.from(cleanBase64, "base64");
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// 验证PDF文件头（%PDF）
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if (buffer.length < 4 || buffer.toString("ascii", 0, 4) !== "%PDF") {
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throw new Error("无效的PDF数据：文件头不正确");
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}
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// 创建临时文件
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tempFilePath = path.join(
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os.tmpdir(),
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`print_${Date.now()}_${Math.random().toString(36).substring(7)}.pdf`
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);
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fs.writeFileSync(tempFilePath, buffer);
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pdfFilePath = tempFilePath;
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const fileSize = fs.statSync(tempFilePath).size;
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log.info(
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`PDF written to temp file: ${tempFilePath}, size: ${fileSize} bytes`
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);
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if (fileSize < 1024) {
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throw new Error(
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`PDF文件大小异常（${fileSize} bytes），可能数据不完整`
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);
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}
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} catch (err) {
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log.error("Base64解码或文件写入失败:", err);
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throw new Error(`PDF数据处理失败: ${err.message}`);
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}
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}
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// 如果是HTTP/HTTPS URL，先下载
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else if (
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pdfDataOrUrl.startsWith("http://") ||
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pdfDataOrUrl.startsWith("https://")
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) {
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log.info("Downloading PDF from URL:", pdfDataOrUrl);
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const protocol = pdfDataOrUrl.startsWith("https") ? https : http;
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const buffer = await new Promise((resolve, reject) => {
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protocol
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.get(pdfDataOrUrl, (response) => {
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// 处理重定向
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if (response.statusCode === 301 || response.statusCode === 302) {
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const redirectUrl = response.headers.location;
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protocol
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.get(redirectUrl, (redirectResponse) => {
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const chunks = [];
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redirectResponse.on("data", (chunk) => chunks.push(chunk));
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redirectResponse.on("end", () => {
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resolve(Buffer.concat(chunks));
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});
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redirectResponse.on("error", reject);
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})
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.on("error", reject);
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} else {
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const chunks = [];
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response.on("data", (chunk) => chunks.push(chunk));
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response.on("end", () => {
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resolve(Buffer.concat(chunks));
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});
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response.on("error", reject);
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}
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})
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.on("error", reject);
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});
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// 验证PDF文件头
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if (buffer.length < 4 || buffer.toString("ascii", 0, 4) !== "%PDF") {
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throw new Error("下载的文件不是有效的PDF");
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}
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tempFilePath = path.join(
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os.tmpdir(),
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`print_${Date.now()}_${Math.random().toString(36).substring(7)}.pdf`
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);
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fs.writeFileSync(tempFilePath, buffer);
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pdfFilePath = tempFilePath;
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const fileSize = fs.statSync(tempFilePath).size;
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log.info(
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`PDF downloaded to temp file: ${tempFilePath}, size: ${fileSize} bytes`
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);
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}
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// 如果是本地文件路径
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else if (pdfDataOrUrl.startsWith("file://")) {
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pdfFilePath = pdfDataOrUrl.replace("file://", "");
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}
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// 如果是相对路径
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else if (pdfDataOrUrl.startsWith("/assets/")) {
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const isDev = !app.isPackaged;
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if (!isDev) {
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pdfFilePath = path.join(__dirname, "..", "dist", pdfDataOrUrl);
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} else {
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throw new Error("开发环境不支持相对路径PDF打印，请使用完整URL或base64");
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}
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}
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// 直接作为文件路径
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else {
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pdfFilePath = pdfDataOrUrl;
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}
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// 验证文件存在
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if (!pdfFilePath || !fs.existsSync(pdfFilePath)) {
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throw new Error(`PDF文件不存在: ${pdfFilePath}`);
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}
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// 验证文件大小
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const stats = fs.statSync(pdfFilePath);
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if (stats.size < 1024) {
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throw new Error(`PDF文件大小异常（${stats.size} bytes），可能文件损坏`);
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}
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log.info(
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`准备打印PDF: ${pdfFilePath}, 打印机: ${
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targetPrinterName || "默认打印机"
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}`
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);
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// 使用 pdf-to-printer 打印
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const printOptions_ptp = {
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printer: targetPrinterName || undefined,
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silent: true, // 静默打印
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};
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await ptp.print(pdfFilePath, printOptions_ptp);
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log.info("PDF打印请求已发送成功");
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// 清理临时文件
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if (tempFilePath && fs.existsSync(tempFilePath)) {
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try {
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// 延迟删除，确保打印任务已提交
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setTimeout(() => {
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fs.unlinkSync(tempFilePath);
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log.info("Temp file deleted");
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}, 5000);
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} catch (err) {
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log.error("Failed to delete temp file:", err);
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}
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}
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return { success: true };
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} catch (error) {
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log.error("Print error:", error);
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// 清理临时文件
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if (tempFilePath && fs.existsSync(tempFilePath)) {
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try {
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fs.unlinkSync(tempFilePath);
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} catch (err) {
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log.error("Failed to delete temp file:", err);
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}
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}
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return { success: false, error: error.message || String(error) };
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}
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});
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app.whenReady().then(() => {
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createWindow();
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createIdCardWorker();
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// IPC <20><><EFBFBD><EFBFBD>
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ipcMain.handle("start_idcard_listen", () => {
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if (idCardWorker) {
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idCardWorker.postMessage("start");
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} else {
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createIdCardWorker();
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idCardWorker.postMessage("start");
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}
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return "started";
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});
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ipcMain.handle("stop_idcard_listen", () => {
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if (idCardWorker) {
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idCardWorker.postMessage("stop");
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}
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return "stopped";
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});
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ipcMain.on("restart-app", () => {
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app.relaunch();
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app.exit(0);
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});
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ipcMain.on("quit-app", () => {
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try {
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app.quit();
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} catch (err) {
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// 最后手段：强制退出
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app.exit(0);
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}
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});
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// 读取本地文件并以 base64 返回（用于渲染进程获取 id card 照片）
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ipcMain.handle("read-local-file", async (event, filePath) => {
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try {
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if (!filePath || typeof filePath !== "string") {
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return { success: false, error: "invalid filePath" };
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}
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if (!fs.existsSync(filePath)) {
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return { success: false, error: `file not exists: ${filePath}` };
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}
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const buffer = fs.readFileSync(filePath);
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const base64 = buffer.toString("base64");
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const mime = "image/bmp";
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return { success: true, data: base64, mime };
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} catch (err) {
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log.error("read-local-file error:", err);
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return { success: false, error: err.message || String(err) };
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}
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});
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app.on("activate", () => {
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if (BrowserWindow.getAllWindows().length === 0) {
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createWindow();
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}
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});
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});
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app.on("window-all-closed", () => {
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if (idCardWorker) {
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idCardWorker.terminate();
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}
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if (process.platform !== "darwin") {
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app.quit();
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}
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});
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