Electron 实现网页密码自动保存功能详解

const { ipcRenderer } = require('electron');
// 当页面加载完成时触发
webContents.on('did-finish-load', () => {
  // 在这里你可以执行一些初始化操作，比如监听表单提交
});
// 监听 HTTP 请求
webContents.on('will-send-request', (event, request) => {
  if (request.method === 'POST') {
    const postData = request.uploadData;
    for (let i = 0; i < postData.length; i++) {
      if (postData[i].bytes.includes('username')) {
        // 捕获 username
        const username = decodeURIComponent(postData[i].bytes.toString());
      }
      if (postData[i].bytes.includes('password')) {
        // 捕获 password
        const password = decodeURIComponent(postData[i].bytes.toString());
      }
    }
    // 将用户名和密码发送给主进程
    ipcRenderer.send('save-login-data', { username, password });
  }
});

const { ipcMain } = require('electron');
const crypto = require('crypto');
const fs = require('fs');
ipcMain.on('save-login-data', (event, data) => {
  // 加密密码
  const encryptedPassword = crypto.createHash('sha256').update(data.password).digest('hex');
  // 存储数据
  fs.writeFile(`./passwords/${data.username}.json`, JSON.stringify({ username: data.username, password: encryptedPassword }), (err) => {
    if (err) throw err;
    console.log('Password saved.');
  });
});

// 在渲染进程中
webContents.on('did-finish-load', () => {
  // 使用 IPC 通信从主进程获取密码
  ipcRenderer.send('get-login-data');
  ipcRenderer.on('login-data', (event, data) => {
    webContents.executeJavaScript(`
      document.querySelector('#username').value = "${data.username}";
      document.querySelector('#password').value = "${data.password}";
    `);
  });
});

// 在主进程中
ipcMain.on('get-login-data', (event) => {
  fs.readFile(`./passwords/${data.username}.json`, 'utf8', (err, data) => {
    if (err) throw err;
    event.reply('login-data', JSON.parse(data));
  });
});