如何使用 mozilla/zipwriter 使用密码将文件压缩为 zip

Question

使用mozilla/zipwriter 压缩文件时如何添加密码？

我用下面的代码，效果很好！

let zipFile = Components.classes["@mozilla.org/file/directory_service;1"].getService(Components.interfaces.nsIProperties).get("AChrom",Components.interfaces.nsIFile); 
zipFile.initWithPath(zipFile.path+"\\smad.zip"); 

const PR_RDONLY  = 0x01; 
const PR_WRONLY  = 0x02; 
const PR_RDWR  = 0x04; 
const PR_CREATE_FILE = 0x08; 
const PR_APPEND  = 0x10; 
const PR_TRUNCATE = 0x20; 
const PR_SYNC  = 0x40; 
const PR_EXCL  = 0x80; 

let zipWriter = Components.Constructor("@mozilla.org/zipwriter;1","nsIZipWriter"); 
let zipW = new zipWriter();
zipW.open(zipFile, PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE);
zipW.addEntryFile(pathComponent.pop(),Components.interfaces.nsIZipWriter.COMPRESSION_DEFAULT,fileItem,false);
zipW.close();

但是如何添加密码呢？

Answer 1

恐怕nsIZipWriter 似乎不支持密码。 IDL 定义或implementation 中未提及任何内容。