带密码的节点模块解压文件答案

【问题标题】：Node module unzip file with password带密码的节点模块解压文件
【发布时间】：2018-07-31 21:14:11
【问题描述】：

我正在寻找节点包来解压缩受密码保护的 zip 文件。截至目前我已经看过here

但是上面提供了打开文件和解析文件的功能。我只需要在一个地方提取文件。

【问题讨论】：

标签： node.js npm unzip

【解决方案1】：

如果我正确理解了您的问题，并且您仍在寻找答案在同一个包中检查这些函数：

Unzipper File Wise Extracting Options

Method specific extract

这些可以帮助您将文件（全部或选定的）提取到所需位置

【讨论】：

【解决方案2】：

如果您想从目录中解压缩受密码保护的文件 -

const unzipper = require("unzipper");

const unzipAndUnlockZipFile = async (filepath, password) => {
  try {
    const zipDirectory = await unzipper.Open.file(filepath); // unzip a file
    const file = zipDirectory.files[0]; // find the file you want

    // if you want to find a specific file by path
    // const file = zipDirectory.files.find((f) => f.path === "filename");

    const extracted = await file.buffer(password); // unlock the file with the password (password is optional, do not pass this if the file is not password-protected)

    console.log(extracted.toString()); // file content
  } catch (e) {
    console.log(e);
  }
};

const zipFilePath = "./src/application.zip";
const password = "1234";
unzipAndUnlockZipFile(zipFilePath, password);

如果您想解压缩并从缓冲区中提取文件，则解决方案如下所示 -

const unzipper = require("unzipper");

const unzipAndUnlockZipFileFromBuffer = async (zippedFileBase64, password) => {
  try {
    const zipBuffer = Buffer.from(zippedFileBase64, "base64"); // Change base64 to buffer
    const zipDirectory = await unzipper.Open.buffer(zipBuffer); // unzip a buffered file
    const file = zipDirectory.files[0]; // find the file you want

    // if you want to find a specific file by path
    // const file = zipDirectory.files.find((f) => f.path === "filename");

    const extracted = await file.buffer(password); // unlock the file with the password (password is optional, do not pass this if the file is not password-protected)

    console.log(extracted.toString()); // file content
  } catch (e) {
    console.log(e);
  }
};

const zippedFileBase64 = "{{BASE64}}";
const password = "1234";
unzipAndUnlockZipFileFromBuffer(zippedFileBase64, password);

【讨论】：