Class: Zip::Entry

Inherits:
Object
  • Object
show all
Defined in:
lib/zip/entry.rb

Direct Known Subclasses

StreamableDirectory, StreamableStream

Constant Summary collapse

STORED = 
0
DEFLATED = 
8
EFS =

Language encoding flag (EFS) bit

0b100000000000

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Entry

Returns a new instance of Entry.



53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
 
# File 'lib/zip/entry.rb', line 53

def initialize(*args)
  name = args[1] || ''
  check_name(name)

  set_default_vars_values
  @fstype = ::Zip::RUNNING_ON_WINDOWS ? ::Zip::FSTYPE_FAT : ::Zip::FSTYPE_UNIX

  @zipfile            = args[0] || ''
  @name               = name
  @comment            = args[2] || ''
  @extra              = args[3] || ''
  @compressed_size    = args[4] || 0
  @crc                = args[5] || 0
  @compression_method = args[6] || ::Zip::Entry::DEFLATED
  @size               = args[7] || 0
  @time               = args[8] || ::Zip::DOSTime.now

  @ftype = name_is_directory? ? :directory : :file
  @extra = ::Zip::ExtraField.new(@extra.to_s) unless @extra.is_a?(::Zip::ExtraField)
end

Instance Attribute Details

#comment ⇒ Object

Returns the value of attribute comment.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def comment
  @comment
end

#compressed_size ⇒ Object

Returns the value of attribute compressed_size.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def compressed_size
  @compressed_size
end

#compression_method ⇒ Object

Returns the value of attribute compression_method.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def compression_method
  @compression_method
end

#crc ⇒ Object

Returns the value of attribute crc.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def crc
  @crc
end

#dirty ⇒ Object

Returns the value of attribute dirty.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def dirty
  @dirty
end

#external_file_attributes ⇒ Object

Returns the value of attribute external_file_attributes.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def external_file_attributes
  @external_file_attributes
end

#extra ⇒ Object

Returns the value of attribute extra.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def extra
  @extra
end

#filepath ⇒ Object (readonly)

:nodoc:



15
16
17
 
# File 'lib/zip/entry.rb', line 15

def filepath
  @filepath
end

#follow_symlinks ⇒ Object

Returns the value of attribute follow_symlinks.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def follow_symlinks
  @follow_symlinks
end

#fstype ⇒ Object

Returns the value of attribute fstype.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def fstype
  @fstype
end

#ftype ⇒ Object (readonly)

:nodoc:



15
16
17
 
# File 'lib/zip/entry.rb', line 15

def ftype
  @ftype
end

#gp_flags ⇒ Object

Returns the value of attribute gp_flags.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def gp_flags
  @gp_flags
end

#header_signature ⇒ Object

Returns the value of attribute header_signature.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def header_signature
  @header_signature
end

#internal_file_attributes ⇒ Object

Returns the value of attribute internal_file_attributes.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def internal_file_attributes
  @internal_file_attributes
end

#local_header_offset ⇒ Object

Returns the value of attribute local_header_offset.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def local_header_offset
  @local_header_offset
end

#name ⇒ Object

Returns the value of attribute name.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def name
  @name
end

#restore_ownership ⇒ Object

Returns the value of attribute restore_ownership.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def restore_ownership
  @restore_ownership
end

#restore_permissions ⇒ Object

Returns the value of attribute restore_permissions.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def restore_permissions
  @restore_permissions
end

#restore_times ⇒ Object

Returns the value of attribute restore_times.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def restore_times
  @restore_times
end

#size ⇒ Object

Returns the value of attribute size.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def size
  @size
end

#unix_gid ⇒ Object

Returns the value of attribute unix_gid.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def unix_gid
  @unix_gid
end

#unix_perms ⇒ Object

Returns the value of attribute unix_perms.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def unix_perms
  @unix_perms
end

#unix_uid ⇒ Object

Returns the value of attribute unix_uid.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def unix_uid
  @unix_uid
end

#zipfile ⇒ Object

Returns the value of attribute zipfile.



8
9
10
 
# File 'lib/zip/entry.rb', line 8

def zipfile
  @zipfile
end

Class Method Details

.read_c_dir_entry(io) ⇒ Object

:nodoc:all



184
185
186
187
188
189
190
191
192
193
194
195
 
# File 'lib/zip/entry.rb', line 184

def read_c_dir_entry(io) #:nodoc:all
  path = if io.respond_to?(:path)
           io.path
         else
           io
         end
  entry = new(path)
  entry.read_c_dir_entry(io)
  entry
rescue Error
  nil
end

.read_local_entry(io) ⇒ Object 



197
198
199
200
201
202
203
 
# File 'lib/zip/entry.rb', line 197

def read_local_entry(io)
  entry = new(io)
  entry.read_local_entry(io)
  entry
rescue Error
  nil
end

.read_zip_64_long(io) ⇒ Object

:nodoc:



180
181
182
 
# File 'lib/zip/entry.rb', line 180

def read_zip_64_long(io) # :nodoc:
  io.read(8).unpack('Q<')[0]
end

.read_zip_long(io) ⇒ Object

:nodoc:



176
177
178
 
# File 'lib/zip/entry.rb', line 176

def read_zip_long(io) # :nodoc:
  io.read(4).unpack('V')[0]
end

.read_zip_short(io) ⇒ Object

:nodoc:



172
173
174
 
# File 'lib/zip/entry.rb', line 172

def read_zip_short(io) # :nodoc:
  io.read(2).unpack('v')[0]
end

Instance Method Details

#<=>(other) ⇒ Object 



473
474
475
 
# File 'lib/zip/entry.rb', line 473

def <=>(other)
  to_s <=> other.to_s
end

#==(other) ⇒ Object 



464
465
466
467
468
469
470
471
 
# File 'lib/zip/entry.rb', line 464

def ==(other)
  return false unless other.class == self.class
  # Compares contents of local entry and exposed fields
  keys_equal = %w(compression_method crc compressed_size size name extra filepath).all? do |k|
    other.__send__(k.to_sym) == __send__(k.to_sym)
  end
  keys_equal && time.dos_equals(other.time)
end

#calculate_local_header_size ⇒ Object

:nodoc:all



128
129
130
 
# File 'lib/zip/entry.rb', line 128

def calculate_local_header_size #:nodoc:all
  LOCAL_ENTRY_STATIC_HEADER_LENGTH + name_size + extra_size
end

#cdir_header_size ⇒ Object

:nodoc:all



140
141
142
143
 
# File 'lib/zip/entry.rb', line 140

def cdir_header_size #:nodoc:all
  CDIR_ENTRY_STATIC_HEADER_LENGTH + name_size +
    (@extra ? @extra.c_dir_size : 0) + comment_size
end

#check_c_dir_entry_comment_size ⇒ Object

Raises:



347
348
349
350
 
# File 'lib/zip/entry.rb', line 347

def check_c_dir_entry_comment_size
  return if @comment && @comment.bytesize == @comment_length
  raise ::Zip::Error, 'Truncated cdir zip entry header'
end

#check_c_dir_entry_signature ⇒ Object

Raises:



342
343
344
345
 
# File 'lib/zip/entry.rb', line 342

def check_c_dir_entry_signature
  return if header_signature == ::Zip::CENTRAL_DIRECTORY_ENTRY_SIGNATURE
  raise Error, "Zip local header magic not found at location '#{local_header_offset}'"
end

#check_c_dir_entry_static_header_length(buf) ⇒ Object

Raises:



337
338
339
340
 
# File 'lib/zip/entry.rb', line 337

def check_c_dir_entry_static_header_length(buf)
  return if buf.bytesize == ::Zip::CDIR_ENTRY_STATIC_HEADER_LENGTH
  raise Error, 'Premature end of file. Not enough data for zip cdir entry header'
end

#check_name(name) ⇒ Object

Raises:



48
49
50
51
 
# File 'lib/zip/entry.rb', line 48

def check_name(name)
  return unless name.start_with?('/')
  raise ::Zip::EntryNameError, "Illegal ZipEntry name '#{name}', name must not start with /"
end

#clean_up ⇒ Object 



564
565
566
 
# File 'lib/zip/entry.rb', line 564

def clean_up
  # By default, do nothing
end

#comment_size ⇒ Object 



124
125
126
 
# File 'lib/zip/entry.rb', line 124

def comment_size
  @comment ? @comment.bytesize : 0
end

#extra_size ⇒ Object 



120
121
122
 
# File 'lib/zip/entry.rb', line 120

def extra_size
  @extra ? @extra.local_size : 0
end

#extract(dest_path = @name, &block) ⇒ Object

Extracts entry to file dest_path (defaults to @name).



150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
 
# File 'lib/zip/entry.rb', line 150

def extract(dest_path = @name, &block)
  block ||= proc { ::Zip.on_exists_proc }

  if @name.squeeze('/') =~ /\.{2}(?:\/|\z)/
    puts "WARNING: skipped \"../\" path component(s) in #{@name}"
    return self
  end

  if directory? || file? || symlink?
    __send__("create_#{@ftype}", dest_path, &block)
  else
    raise "unknown file type #{inspect}"
  end

  self
end

#file_stat(path) ⇒ Object

:nodoc:



374
375
376
377
378
379
380
 
# File 'lib/zip/entry.rb', line 374

def file_stat(path) # :nodoc:
  if @follow_symlinks
    ::File.stat(path)
  else
    ::File.lstat(path)
  end
end

#file_type_is?(type) ⇒ Boolean

Returns:

  • (Boolean)

Raises:



96
97
98
99
 
# File 'lib/zip/entry.rb', line 96

def file_type_is?(type)
  raise InternalError, "current filetype is unknown: #{inspect}" unless @ftype
  @ftype == type
end

#gather_fileinfo_from_srcpath(src_path) ⇒ Object

:nodoc:



511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
 
# File 'lib/zip/entry.rb', line 511

def gather_fileinfo_from_srcpath(src_path) # :nodoc:
  stat   = file_stat(src_path)
  @ftype = case stat.ftype
           when 'file'
             if name_is_directory?
               raise ArgumentError,
                     "entry name '#{newEntry}' indicates directory entry, but " \
                         "'#{src_path}' is not a directory"
             end
             :file
           when 'directory'
             @name += '/' unless name_is_directory?
             :directory
           when 'link'
             if name_is_directory?
               raise ArgumentError,
                     "entry name '#{newEntry}' indicates directory entry, but " \
                         "'#{src_path}' is not a directory"
             end
             :symlink
           else
             raise "unknown file type: #{src_path.inspect} #{stat.inspect}"
           end

  @filepath = src_path
  get_extra_attributes_from_path(@filepath)
end

#get_extra_attributes_from_path(path) ⇒ Object

:nodoc:



382
383
384
385
386
387
388
 
# File 'lib/zip/entry.rb', line 382

def get_extra_attributes_from_path(path) # :nodoc:
  return if Zip::RUNNING_ON_WINDOWS
  stat        = file_stat(path)
  @unix_uid   = stat.uid
  @unix_gid   = stat.gid
  @unix_perms = stat.mode & 07777
end

#get_input_stream(&block) ⇒ Object

Returns an IO like object for the given ZipEntry. Warning: may behave weird with symlinks.



479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
 
# File 'lib/zip/entry.rb', line 479

def get_input_stream(&block)
  if @ftype == :directory
    yield ::Zip::NullInputStream if block_given?
    ::Zip::NullInputStream
  elsif @filepath
    case @ftype
    when :file
      ::File.open(@filepath, 'rb', &block)
    when :symlink
      linkpath = ::File.readlink(@filepath)
      stringio = ::StringIO.new(linkpath)
      yield(stringio) if block_given?
      stringio
    else
      raise "unknown @file_type #{@ftype}"
    end
  else
    zis = ::Zip::InputStream.new(@zipfile, local_header_offset)
    zis.instance_variable_set(:@internal, true)
    zis.get_next_entry
    if block_given?
      begin
        yield(zis)
      ensure
        zis.close
      end
    else
      zis
    end
  end
end

#get_raw_input_stream(&block) ⇒ Object 



556
557
558
559
560
561
562
 
# File 'lib/zip/entry.rb', line 556

def get_raw_input_stream(&block)
  if @zipfile.respond_to?(:seek) && @zipfile.respond_to?(:read)
    yield @zipfile
  else
    ::File.open(@zipfile, 'rb', &block)
  end
end

#local_entry_offset ⇒ Object

:nodoc:all



112
113
114
 
# File 'lib/zip/entry.rb', line 112

def local_entry_offset #:nodoc:all
  local_header_offset + @local_header_size
end

#name_is_directory? ⇒ Boolean

:nodoc:all

Returns:

  • (Boolean) 


108
109
110
 
# File 'lib/zip/entry.rb', line 108

def name_is_directory? #:nodoc:all
  @name.end_with?('/')
end

#name_size ⇒ Object 



116
117
118
 
# File 'lib/zip/entry.rb', line 116

def name_size
  @name ? @name.bytesize : 0
end

#next_header_offset ⇒ Object

:nodoc:all



145
146
147
 
# File 'lib/zip/entry.rb', line 145

def next_header_offset #:nodoc:all
  local_entry_offset + compressed_size + data_descriptor_size
end

#pack_c_dir_entry ⇒ Object 



409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
 
# File 'lib/zip/entry.rb', line 409

def pack_c_dir_entry
  zip64 = @extra['Zip64']
  [
    @header_signature,
    @version, # version of encoding software
    @fstype, # filesystem type
    @version_needed_to_extract, # @versionNeededToExtract           ,
    @gp_flags, # @gp_flags                          ,
    @compression_method,
    @time.to_binary_dos_time, # @last_mod_time                      ,
    @time.to_binary_dos_date, # @last_mod_date                      ,
    @crc,
    (zip64 && zip64.compressed_size) ? 0xFFFFFFFF : @compressed_size,
    (zip64 && zip64.original_size) ? 0xFFFFFFFF : @size,
    name_size,
    @extra ? @extra.c_dir_size : 0,
    comment_size,
    (zip64 && zip64.disk_start_number) ? 0xFFFF : 0, # disk number start
    @internal_file_attributes, # file type (binary=0, text=1)
    @external_file_attributes, # native filesystem attributes
    (zip64 && zip64.relative_header_offset) ? 0xFFFFFFFF : @local_header_offset,
    @name,
    @extra,
    @comment
  ].pack('VCCvvvvvVVVvvvvvVV')
end

#pack_local_entry ⇒ Object 



257
258
259
260
261
262
263
264
265
266
267
268
269
270
 
# File 'lib/zip/entry.rb', line 257

def pack_local_entry
  zip64 = @extra['Zip64']
  [::Zip::LOCAL_ENTRY_SIGNATURE,
   @version_needed_to_extract, # version needed to extract
   @gp_flags, # @gp_flags                  ,
   @compression_method,
   @time.to_binary_dos_time, # @last_mod_time              ,
   @time.to_binary_dos_date, # @last_mod_date              ,
   @crc,
   (zip64 && zip64.compressed_size) ? 0xFFFFFFFF : @compressed_size,
   (zip64 && zip64.original_size) ? 0xFFFFFFFF : @size,
   name_size,
   @extra ? @extra.local_size : 0].pack('VvvvvvVVVvv')
end

#parent_as_string ⇒ Object 



550
551
552
553
554
 
# File 'lib/zip/entry.rb', line 550

def parent_as_string
  entry_name  = name.chomp('/')
  slash_index = entry_name.rindex('/')
  slash_index ? entry_name.slice(0, slash_index + 1) : nil
end

#read_c_dir_entry(io) ⇒ Object

:nodoc:all



360
361
362
363
364
365
366
367
368
369
370
371
372
 
# File 'lib/zip/entry.rb', line 360

def read_c_dir_entry(io) #:nodoc:all
  static_sized_fields_buf = io.read(::Zip::CDIR_ENTRY_STATIC_HEADER_LENGTH)
  check_c_dir_entry_static_header_length(static_sized_fields_buf)
  unpack_c_dir_entry(static_sized_fields_buf)
  check_c_dir_entry_signature
  set_time(@last_mod_date, @last_mod_time)
  @name = io.read(@name_length)
  read_c_dir_extra_field(io)
  @comment = io.read(@comment_length)
  check_c_dir_entry_comment_size
  set_ftype_from_c_dir_entry
  parse_zip64_extra(false)
end

#read_c_dir_extra_field(io) ⇒ Object 



352
353
354
355
356
357
358
 
# File 'lib/zip/entry.rb', line 352

def read_c_dir_extra_field(io)
  if @extra.is_a?(::Zip::ExtraField)
    @extra.merge(io.read(@extra_length))
  else
    @extra = ::Zip::ExtraField.new(io.read(@extra_length))
  end
end

#read_local_entry(io) ⇒ Object

:nodoc:all



223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
 
# File 'lib/zip/entry.rb', line 223

def read_local_entry(io) #:nodoc:all
  @local_header_offset = io.tell

  static_sized_fields_buf = io.read(::Zip::LOCAL_ENTRY_STATIC_HEADER_LENGTH) || ''

  unless static_sized_fields_buf.bytesize == ::Zip::LOCAL_ENTRY_STATIC_HEADER_LENGTH
    raise Error, 'Premature end of file. Not enough data for zip entry local header'
  end

  unpack_local_entry(static_sized_fields_buf)

  unless @header_signature == ::Zip::LOCAL_ENTRY_SIGNATURE
    raise ::Zip::Error, "Zip local header magic not found at location '#{local_header_offset}'"
  end
  set_time(@last_mod_date, @last_mod_time)

  @name = io.read(@name_length)
  extra = io.read(@extra_length)

  @name.gsub!('\\', '/')

  if extra && extra.bytesize != @extra_length
    raise ::Zip::Error, 'Truncated local zip entry header'
  else
    if @extra.is_a?(::Zip::ExtraField)
      @extra.merge(extra) if extra
    else
      @extra = ::Zip::ExtraField.new(extra)
    end
  end
  parse_zip64_extra(true)
  @local_header_size = calculate_local_header_size
end

#set_default_vars_values ⇒ Object 



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
 
# File 'lib/zip/entry.rb', line 17

def set_default_vars_values
  @local_header_offset      = 0
  @local_header_size        = nil # not known until local entry is created or read
  @internal_file_attributes = 1
  @external_file_attributes = 0
  @header_signature         = ::Zip::CENTRAL_DIRECTORY_ENTRY_SIGNATURE

  @version_needed_to_extract = VERSION_NEEDED_TO_EXTRACT
  @version                   = VERSION_MADE_BY

  @ftype           = nil          # unspecified or unknown
  @filepath        = nil
  @gp_flags        = 0
  if ::Zip.unicode_names
    @gp_flags |= EFS
    @version = 63
  end
  @follow_symlinks = false

  @restore_times       = true
  @restore_permissions = false
  @restore_ownership   = false
  # BUG: need an extra field to support uid/gid's
  @unix_uid            = nil
  @unix_gid            = nil
  @unix_perms          = nil
  # @posix_acl = nil
  # @ntfs_acl = nil
  @dirty               = false
end

#set_extra_attributes_on_path(dest_path) ⇒ Object

:nodoc:



400
401
402
403
404
405
406
407
 
# File 'lib/zip/entry.rb', line 400

def set_extra_attributes_on_path(dest_path) # :nodoc:
  return unless file? || directory?

  case @fstype
  when ::Zip::FSTYPE_UNIX
    set_unix_permissions_on_path(dest_path)
  end
end

#set_ftype_from_c_dir_entry ⇒ Object 



308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
 
# File 'lib/zip/entry.rb', line 308

def set_ftype_from_c_dir_entry
  @ftype = case @fstype
           when ::Zip::FSTYPE_UNIX
             @unix_perms = (@external_file_attributes >> 16) & 07777
             case (@external_file_attributes >> 28)
             when ::Zip::FILE_TYPE_DIR
               :directory
             when ::Zip::FILE_TYPE_FILE
               :file
             when ::Zip::FILE_TYPE_SYMLINK
               :symlink
             else
               # best case guess for whether it is a file or not
               # Otherwise this would be set to unknown and that entry would never be able to extracted
               if name_is_directory?
                 :directory
               else
                 :file
               end
             end
           else
             if name_is_directory?
               :directory
             else
               :file
             end
           end
end

#set_unix_permissions_on_path(dest_path) ⇒ Object 



390
391
392
393
394
395
396
397
398
 
# File 'lib/zip/entry.rb', line 390

def set_unix_permissions_on_path(dest_path)
  # BUG: does not update timestamps into account
  # ignore setuid/setgid bits by default.  honor if @restore_ownership
  unix_perms_mask = 01777
  unix_perms_mask = 07777 if @restore_ownership
  ::FileUtils.chmod(@unix_perms & unix_perms_mask, dest_path) if @restore_permissions && @unix_perms
  ::FileUtils.chown(@unix_uid, @unix_gid, dest_path) if @restore_ownership && @unix_uid && @unix_gid && ::Process.egid == 0
  # File::utimes()
end

#time ⇒ Object Also known as: mtime 



74
75
76
77
78
79
80
81
82
83
84
 
# File 'lib/zip/entry.rb', line 74

def time
  if @extra['UniversalTime']
    @extra['UniversalTime'].mtime
  elsif @extra['NTFS']
    @extra['NTFS'].mtime
  else
    # Standard time field in central directory has local time
    # under archive creator. Then, we can't get timezone.
    @time
  end
end

#time=(value) ⇒ Object 



88
89
90
91
92
93
94
 
# File 'lib/zip/entry.rb', line 88

def time=(value)
  unless @extra.member?('UniversalTime') || @extra.member?('NTFS')
    @extra.create('UniversalTime')
  end
  (@extra['UniversalTime'] || @extra['NTFS']).mtime = value
  @time                         = value
end

#to_s ⇒ Object 



167
168
169
 
# File 'lib/zip/entry.rb', line 167

def to_s
  @name
end

#unpack_c_dir_entry(buf) ⇒ Object 



284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
 
# File 'lib/zip/entry.rb', line 284

def unpack_c_dir_entry(buf)
  @header_signature,
    @version, # version of encoding software
    @fstype, # filesystem type
    @version_needed_to_extract,
    @gp_flags,
    @compression_method,
    @last_mod_time,
    @last_mod_date,
    @crc,
    @compressed_size,
    @size,
    @name_length,
    @extra_length,
    @comment_length,
    _, # diskNumberStart
    @internal_file_attributes,
    @external_file_attributes,
    @local_header_offset,
    @name,
    @extra,
    @comment = buf.unpack('VCCvvvvvVVVvvvvvVV')
end

#unpack_local_entry(buf) ⇒ Object 



208
209
210
211
212
213
214
215
216
217
218
219
220
221
 
# File 'lib/zip/entry.rb', line 208

def unpack_local_entry(buf)
  @header_signature,
    @version,
    @fstype,
    @gp_flags,
    @compression_method,
    @last_mod_time,
    @last_mod_date,
    @crc,
    @compressed_size,
    @size,
    @name_length,
    @extra_length = buf.unpack('VCCvvvvVVVvv')
end

#verify_local_header_size! ⇒ Object

check before rewriting an entry (after file sizes are known) that we didn’t change the header size (and thus clobber file data or something)

Raises:



134
135
136
137
138
 
# File 'lib/zip/entry.rb', line 134

def verify_local_header_size!
  return if @local_header_size.nil?
  new_size = calculate_local_header_size
  raise Error, "local header size changed (#{@local_header_size} -> #{new_size})" if @local_header_size != new_size
end

#write_c_dir_entry(io) ⇒ Object

:nodoc:all



436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
 
# File 'lib/zip/entry.rb', line 436

def write_c_dir_entry(io) #:nodoc:all
  prep_zip64_extra(false)
  case @fstype
  when ::Zip::FSTYPE_UNIX
    ft = case @ftype
         when :file
           @unix_perms ||= 0644
           ::Zip::FILE_TYPE_FILE
         when :directory
           @unix_perms ||= 0755
           ::Zip::FILE_TYPE_DIR
         when :symlink
           @unix_perms ||= 0755
           ::Zip::FILE_TYPE_SYMLINK
         end

    unless ft.nil?
      @external_file_attributes = (ft << 12 | (@unix_perms & 07777)) << 16
    end
  end

  io << pack_c_dir_entry

  io << @name
  io << (@extra ? @extra.to_c_dir_bin : '')
  io << @comment
end

#write_local_entry(io, rewrite = false) ⇒ Object

:nodoc:all



272
273
274
275
276
277
278
279
280
281
282
 
# File 'lib/zip/entry.rb', line 272

def write_local_entry(io, rewrite = false) #:nodoc:all
  prep_zip64_extra(true)
  verify_local_header_size! if rewrite
  @local_header_offset = io.tell

  io << pack_local_entry

  io << @name
  io << @extra.to_local_bin if @extra
  @local_header_size = io.tell - @local_header_offset
end

#write_to_zip_output_stream(zip_output_stream) ⇒ Object

:nodoc:all



539
540
541
542
543
544
545
546
547
548
 
# File 'lib/zip/entry.rb', line 539

def write_to_zip_output_stream(zip_output_stream) #:nodoc:all
  if @ftype == :directory
    zip_output_stream.put_next_entry(self, nil, nil, ::Zip::Entry::STORED)
  elsif @filepath
    zip_output_stream.put_next_entry(self, nil, nil, compression_method || ::Zip::Entry::DEFLATED)
    get_input_stream { |is| ::Zip::IOExtras.copy_stream(zip_output_stream, is) }
  else
    zip_output_stream.copy_raw_entry(self)
  end
end