# All files / tar/lib mkdir.js

100% Statements 130/130
100% Branches 91/91
100% Functions 15/15
100% Lines 128/128

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    187
    188
    189
    190
    191
    192
    193
    194
    195
    196
    197
    198
    199
    200
    201
    202
    203
    204
    205
    206
    207
    208

    3x
    3x
    3x
    3x

    4x
    4x
    4x

    8x

    12x
    12x
    12x

    36x

    3x

    451x
    451x
    451x

    451x
    451x
    451x

    451x
    451x
    451x
    451x

    451x
    457x
    15x

    442x
    442x
    6x
    436x
    1x

    435x

    451x
    272x

    179x
    40x
    40x
    2x
    40x

    139x
    8x

    131x
    131x
    131x

    3x
    1062x
    119x
    943x
    943x
    943x
    723x
    220x

    222x
    222x
    36x

    4x

    32x
    32x
    4x
    28x
    22x
    6x
    3x
    3x
    1x
    2x

    3x
    2x

    1x

    186x
    186x

    3x

    276x
    276x
    276x

    276x
    276x
    276x

    276x
    276x
    276x
    276x

    276x
    266x
    266x
    6x
    266x
    1x
    266x

    276x
    128x

    148x
    34x
    34x
    34x
    34x

    1x

    34x
    2x

    32x
    32x

    114x
    7x

    107x
    107x
    107x
    107x

    792x
    608x

    184x
    184x
    169x
    169x

    15x

    4x

    11x
    9x
    4x
    4x
    5x
    2x
    2x
    2x
    2x
    2x
    3x
    2x

    99x

     'use strict'
    // wrapper around mkdirp for tar's needs.

    // TODO: This should probably be a class, not functionally
    // passing around state in a gazillion args.

    const mkdirp = require('mkdirp')
    const fs = require('fs')
    const path = require('path')
    const chownr = require('chownr')

    class SymlinkError extends Error {
      constructor (symlink, path) {
        super('Cannot extract through symbolic link')
        this.path = path
        this.symlink = symlink
      }

      get name () {
        return 'SylinkError'
      }
    }

    class CwdError extends Error {
      constructor (path, code) {
        super(code + ': Cannot cd into \'' + path + '\'')
        this.path = path
        this.code = code
      }

      get name () {
        return 'CwdError'
      }
    }

    const mkdir = module.exports = (dir, opt, cb) => {
      // if there's any overlap between mask and mode,
      // then we'll need an explicit chmod
      const umask = opt.umask
      const mode = opt.mode | 0o0700
      const needChmod = (mode & umask) !== 0

      const uid = opt.uid
      const gid = opt.gid
      const doChown = typeof uid === 'number' &&
        typeof gid === 'number' &&
        ( uid !== opt.processUid || gid !== opt.processGid )

      const preserve = opt.preserve
      const unlink = opt.unlink
      const cache = opt.cache
      const cwd = opt.cwd

      const done = (er, created) => {
        if (er)
          cb(er)
        else {
          cache.set(dir, true)
          if (created && doChown)
            chownr(created, uid, gid, er => done(er))
          else if (needChmod)
            fs.chmod(dir, mode, cb)
          else
            cb()
        }
      }

      if (cache && cache.get(dir) === true)
        return done()

      if (dir === cwd)
        return fs.lstat(dir, (er, st) => {
          if (er || !st.isDirectory())
            er = new CwdError(dir, er && er.code || 'ENOTDIR')
          done(er)
        })

      if (preserve)
        return mkdirp(dir, mode, done)

      const sub = path.relative(cwd, dir)
      const parts = sub.split(/\/|\\/)
      mkdir_(cwd, parts, mode, cache, unlink, cwd, null, done)
    }

    const mkdir_ = (base, parts, mode, cache, unlink, cwd, created, cb) => {
      if (!parts.length)
        return cb(null, created)
      const p = parts.shift()
      const part = base + '/' + p
      if (cache.get(part))
        return mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
      fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
    }

    const onmkdir = (part, parts, mode, cache, unlink, cwd, created, cb) => er => {
      if (er) {
        if (er.path && path.dirname(er.path) === cwd &&
            (er.code === 'ENOTDIR' || er.code === 'ENOENT'))
          return cb(new CwdError(cwd, er.code))

        fs.lstat(part, (statEr, st) => {
          if (statEr)
            cb(statEr)
          else if (st.isDirectory())
            mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
          else if (unlink)
            fs.unlink(part, er => {
              if (er)
                return cb(er)
              fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
            })
          else if (st.isSymbolicLink())
            return cb(new SymlinkError(part, part + '/' + parts.join('/')))
          else
            cb(er)
        })
      } else {
        created = created || part
        mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
      }
    }

    const mkdirSync = module.exports.sync = (dir, opt) => {
      // if there's any overlap between mask and mode,
      // then we'll need an explicit chmod
      const umask = opt.umask
      const mode = opt.mode | 0o0700
      const needChmod = (mode & umask) !== 0

      const uid = opt.uid
      const gid = opt.gid
      const doChown = typeof uid === 'number' &&
        typeof gid === 'number' &&
        ( uid !== opt.processUid || gid !== opt.processGid )

      const preserve = opt.preserve
      const unlink = opt.unlink
      const cache = opt.cache
      const cwd = opt.cwd

      const done = (created) => {
        cache.set(dir, true)
        if (created && doChown)
          chownr.sync(created, uid, gid)
        if (needChmod)
          fs.chmodSync(dir, mode)
        cache.set(dir, true)
      }

      if (cache && cache.get(dir) === true)
        return done()

      if (dir === cwd) {
        let ok = false
        let code = 'ENOTDIR'
        try {
          ok = fs.lstatSync(dir).isDirectory()
        } catch (er) {
          code = er.code
        } finally {
          if (!ok)
            throw new CwdError(dir, code)
        }
        done()
        return
      }

      if (preserve)
        return done(mkdirp.sync(dir, mode))

      const sub = path.relative(cwd, dir)
      const parts = sub.split(/\/|\\/)
      let created = null
      for (let p = parts.shift(), part = cwd;
           p && (part += '/' + p);
           p = parts.shift()) {

        if (cache.get(part))
          continue

        try {
          fs.mkdirSync(part, mode)
          created = created || part
          cache.set(part, true)
        } catch (er) {
          if (er.path && path.dirname(er.path) === cwd &&
              (er.code === 'ENOTDIR' || er.code === 'ENOENT'))
            return new CwdError(cwd, er.code)

          const st = fs.lstatSync(part)
          if (st.isDirectory()) {
            cache.set(part, true)
            continue
          } else if (unlink) {
            fs.unlinkSync(part)
            fs.mkdirSync(part, mode)
            created = created || part
            cache.set(part, true)
            continue
          } else if (st.isSymbolicLink())
            return new SymlinkError(part, part + '/' + parts.join('/'))
        }
      }

      return done(created)
    }