1var fs = require('fs') 2var path = require('path') 3var getUid = require('uid-number') 4var chain = require('slide').chain 5var log = require('npmlog') 6var npm = require('../npm.js') 7var fileCompletion = require('../utils/completion/file-completion.js') 8 9function checkFilesPermission (root, fmask, dmask, cb) { 10 if (process.platform === 'win32') return cb(null, true) 11 getUid(npm.config.get('user'), npm.config.get('group'), function (e, uid, gid) { 12 var tracker = log.newItem('checkFilePermissions', 1) 13 if (e) { 14 tracker.finish() 15 tracker.warn('checkFilePermissions', 'Error looking up user and group:', e) 16 return cb(e) 17 } 18 tracker.info('checkFilePermissions', 'Building file list of ' + root) 19 fileCompletion(root, '.', Infinity, function (e, files) { 20 if (e) { 21 tracker.warn('checkFilePermissions', 'Error building file list:', e) 22 tracker.finish() 23 return cb(e) 24 } 25 tracker.addWork(files.length) 26 tracker.completeWork(1) 27 chain(files.map(andCheckFile), function (er) { 28 tracker.finish() 29 cb(null, !er) 30 }) 31 function andCheckFile (f) { 32 return [checkFile, f] 33 } 34 function checkFile (f, next) { 35 var file = path.join(root, f) 36 tracker.silly('checkFilePermissions', f) 37 fs.lstat(file, function (e, stat) { 38 tracker.completeWork(1) 39 if (e) return next(e) 40 if (!stat.isDirectory() && !stat.isFile()) return next() 41 // 6 = fs.constants.R_OK | fs.constants.W_OK 42 // constants aren't available on v4 43 fs.access(file, stat.isFile() ? fmask : dmask, (err) => { 44 if (err) { 45 tracker.error('checkFilePermissions', `Missing permissions on ${file}`) 46 return next(new Error('Missing permissions for ' + file)) 47 } else { 48 return next() 49 } 50 }) 51 }) 52 } 53 }) 54 }) 55} 56 57module.exports = checkFilesPermission 58