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var fs = require('fs')
var path = require('path')
var getUid = require('uid-number')
var chain = require('slide').chain
var log = require('npmlog')
var npm = require('../npm.js')
var fileCompletion = require('../utils/completion/file-completion.js')
function checkFilesPermission (root, mask, cb) {
if (process.platform === 'win32') return cb(null, true)
getUid(npm.config.get('user'), npm.config.get('group'), function (e, uid, gid) {
if (e) {
tracker.finish()
tracker.warn('checkFilePermissions', 'Error looking up user and group:', e)
return cb(e)
}
var tracker = log.newItem('checkFilePermissions', 1)
tracker.info('checkFilePermissions', 'Building file list of ' + root)
fileCompletion(root, '.', Infinity, function (e, files) {
if (e) {
tracker.warn('checkFilePermissions', 'Error building file list:', e)
tracker.finish()
return cb(e)
}
tracker.addWork(files.length)
tracker.completeWork(1)
chain(files.map(andCheckFile), function (er) {
tracker.finish()
cb(null, !er)
})
function andCheckFile (f) {
return [checkFile, f]
}
function checkFile (f, next) {
var file = path.join(root, f)
tracker.silly('checkFilePermissions', f)
fs.lstat(file, function (e, stat) {
tracker.completeWork(1)
if (e) return next(e)
if (!stat.isFile()) return next()
var mode = stat.mode
var isGroup = stat.gid ? stat.gid === gid : true
var isUser = stat.uid ? stat.uid === uid : true
if ((mode & parseInt('000' + mask, 8))) return next()
if ((isGroup && mode & parseInt('00' + mask + '0', 8))) return next()
if ((isUser && mode & parseInt('0' + mask + '00', 8))) return next()
tracker.error('checkFilePermissions', 'Missing permissions on (' + isGroup + ', ' + isUser + ', ' + mode + ')', file)
return next(new Error('Missing permissions for ' + file))
})
}
})
})
}
module.exports = checkFilesPermission