diff options
Diffstat (limited to 'node_modules/extract-zip/index.js')
| -rw-r--r-- | node_modules/extract-zip/index.js | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/node_modules/extract-zip/index.js b/node_modules/extract-zip/index.js deleted file mode 100644 index 682d401..0000000 --- a/node_modules/extract-zip/index.js +++ /dev/null @@ -1,211 +0,0 @@ -var fs = require('fs') -var path = require('path') -var yauzl = require('yauzl') -var mkdirp = require('mkdirp') -var concat = require('concat-stream') -var debug = require('debug')('extract-zip') - -module.exports = function (zipPath, opts, cb) { - debug('creating target directory', opts.dir) - - if (path.isAbsolute(opts.dir) === false) { - return cb(new Error('Target directory is expected to be absolute')) - } - - mkdirp(opts.dir, function (err) { - if (err) return cb(err) - - fs.realpath(opts.dir, function (err, canonicalDir) { - if (err) return cb(err) - - opts.dir = canonicalDir - - openZip(opts) - }) - }) - - function openZip () { - debug('opening', zipPath, 'with opts', opts) - - yauzl.open(zipPath, {lazyEntries: true}, function (err, zipfile) { - if (err) return cb(err) - - var cancelled = false - - zipfile.on('error', function (err) { - if (err) { - cancelled = true - return cb(err) - } - }) - zipfile.readEntry() - - zipfile.on('close', function () { - if (!cancelled) { - debug('zip extraction complete') - cb() - } - }) - - zipfile.on('entry', function (entry) { - if (cancelled) { - debug('skipping entry', entry.fileName, {cancelled: cancelled}) - return - } - - debug('zipfile entry', entry.fileName) - - if (/^__MACOSX\//.test(entry.fileName)) { - // dir name starts with __MACOSX/ - zipfile.readEntry() - return - } - - var destDir = path.dirname(path.join(opts.dir, entry.fileName)) - - mkdirp(destDir, function (err) { - if (err) { - cancelled = true - zipfile.close() - return cb(err) - } - - fs.realpath(destDir, function (err, canonicalDestDir) { - if (err) { - cancelled = true - zipfile.close() - return cb(err) - } - - var relativeDestDir = path.relative(opts.dir, canonicalDestDir) - - if (relativeDestDir.split(path.sep).indexOf('..') !== -1) { - cancelled = true - zipfile.close() - return cb(new Error('Out of bound path "' + canonicalDestDir + '" found while processing file ' + entry.fileName)) - } - - extractEntry(entry, function (err) { - // if any extraction fails then abort everything - if (err) { - cancelled = true - zipfile.close() - return cb(err) - } - debug('finished processing', entry.fileName) - zipfile.readEntry() - }) - }) - }) - }) - - function extractEntry (entry, done) { - if (cancelled) { - debug('skipping entry extraction', entry.fileName, {cancelled: cancelled}) - return setImmediate(done) - } - - if (opts.onEntry) { - opts.onEntry(entry, zipfile) - } - - var dest = path.join(opts.dir, entry.fileName) - - // convert external file attr int into a fs stat mode int - var mode = (entry.externalFileAttributes >> 16) & 0xFFFF - // check if it's a symlink or dir (using stat mode constants) - var IFMT = 61440 - var IFDIR = 16384 - var IFLNK = 40960 - var symlink = (mode & IFMT) === IFLNK - var isDir = (mode & IFMT) === IFDIR - - // Failsafe, borrowed from jsZip - if (!isDir && entry.fileName.slice(-1) === '/') { - isDir = true - } - - // check for windows weird way of specifying a directory - // https://github.com/maxogden/extract-zip/issues/13#issuecomment-154494566 - var madeBy = entry.versionMadeBy >> 8 - if (!isDir) isDir = (madeBy === 0 && entry.externalFileAttributes === 16) - - // if no mode then default to default modes - if (mode === 0) { - if (isDir) { - if (opts.defaultDirMode) mode = parseInt(opts.defaultDirMode, 10) - if (!mode) mode = 493 // Default to 0755 - } else { - if (opts.defaultFileMode) mode = parseInt(opts.defaultFileMode, 10) - if (!mode) mode = 420 // Default to 0644 - } - } - - debug('extracting entry', { filename: entry.fileName, isDir: isDir, isSymlink: symlink }) - - // reverse umask first (~) - var umask = ~process.umask() - // & with processes umask to override invalid perms - var procMode = mode & umask - - // always ensure folders are created - var destDir = dest - if (!isDir) destDir = path.dirname(dest) - - debug('mkdirp', {dir: destDir}) - mkdirp(destDir, function (err) { - if (err) { - debug('mkdirp error', destDir, {error: err}) - cancelled = true - return done(err) - } - - if (isDir) return done() - - debug('opening read stream', dest) - zipfile.openReadStream(entry, function (err, readStream) { - if (err) { - debug('openReadStream error', err) - cancelled = true - return done(err) - } - - readStream.on('error', function (err) { - console.log('read err', err) - }) - - if (symlink) writeSymlink() - else writeStream() - - function writeStream () { - var writeStream = fs.createWriteStream(dest, {mode: procMode}) - readStream.pipe(writeStream) - - writeStream.on('finish', function () { - done() - }) - - writeStream.on('error', function (err) { - debug('write error', {error: err}) - cancelled = true - return done(err) - }) - } - - // AFAICT the content of the symlink file itself is the symlink target filename string - function writeSymlink () { - readStream.pipe(concat(function (data) { - var link = data.toString() - debug('creating symlink', link, dest) - fs.symlink(link, dest, function (err) { - if (err) cancelled = true - done(err) - }) - })) - } - }) - }) - } - }) - } -} |