Class: Zip::ZipEntry
Direct Known Subclasses
ZipStreamableDirectory, ZipStreamableFile, ZipStreamableStream
Constant Summary collapse
- STORED =
0
- DEFLATED =
8
- LOCAL_ENTRY_SIGNATURE =
0x04034b50
- LOCAL_ENTRY_STATIC_HEADER_LENGTH =
30
- CENTRAL_DIRECTORY_ENTRY_SIGNATURE =
0x02014b50
- CDIR_ENTRY_STATIC_HEADER_LENGTH =
46
Instance Attribute Summary collapse
-
#comment ⇒ Object
Returns the value of attribute comment.
-
#compressed_size ⇒ Object
Returns the value of attribute compressed_size.
-
#compression_method ⇒ Object
Returns the value of attribute compression_method.
-
#crc ⇒ Object
Returns the value of attribute crc.
-
#externalFileAttributes ⇒ Object
Returns the value of attribute externalFileAttributes.
-
#extra ⇒ Object
Returns the value of attribute extra.
-
#fstype ⇒ Object
Returns the value of attribute fstype.
-
#localHeaderOffset ⇒ Object
Returns the value of attribute localHeaderOffset.
-
#name ⇒ Object
Returns the value of attribute name.
-
#size ⇒ Object
Returns the value of attribute size.
-
#zipfile ⇒ Object
Returns the value of attribute zipfile.
Class Method Summary collapse
Instance Method Summary collapse
- #<=>(other) ⇒ Object
- #==(other) ⇒ Object
-
#cdir_header_size ⇒ Object
:nodoc:all.
- #directory? ⇒ Boolean (also: #is_directory)
- #file? ⇒ Boolean
- #get_input_stream ⇒ Object
- #get_raw_input_stream(&aProc) ⇒ Object
-
#initialize(zipfile = "", name = "", comment = "", extra = "", compressed_size = 0, crc = 0, compression_method = ZipEntry::DEFLATED, size = 0, time = Time.now) ⇒ ZipEntry
constructor
A new instance of ZipEntry.
-
#local_entry_offset ⇒ Object
:nodoc:all.
-
#local_header_size ⇒ Object
:nodoc:all.
-
#next_header_offset ⇒ Object
:nodoc:all.
- #parent_as_string ⇒ Object
-
#read_c_dir_entry(io) ⇒ Object
:nodoc:all.
-
#read_local_entry(io) ⇒ Object
:nodoc:all.
- #time ⇒ Object (also: #mtime)
- #time=(aTime) ⇒ Object
- #to_s ⇒ Object
-
#write_c_dir_entry(io) ⇒ Object
:nodoc:all.
-
#write_local_entry(io) ⇒ Object
:nodoc:all.
-
#write_to_zip_output_stream(aZipOutputStream) ⇒ Object
:nodoc:all.
Constructor Details
#initialize(zipfile = "", name = "", comment = "", extra = "", compressed_size = 0, crc = 0, compression_method = ZipEntry::DEFLATED, size = 0, time = Time.now) ⇒ ZipEntry
Returns a new instance of ZipEntry.
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# File 'lib/zip/zip.rb', line 275 def initialize(zipfile = "", name = "", comment = "", extra = "", compressed_size = 0, crc = 0, compression_method = ZipEntry::DEFLATED, size = 0, time = Time.now) super() if name.starts_with("/") raise ZipEntryNameError, "Illegal ZipEntry name '#{name}', name must not start with /" end @localHeaderOffset = 0 @internalFileAttributes = 1 @externalFileAttributes = 0 @version = 52 # this library's version @fstype = 0 # default is fat @zipfile, @comment, @compressed_size, @crc, @extra, @compression_method, @name, @size = zipfile, comment, compressed_size, crc, extra, compression_method, name, size @time = time unless ZipExtraField === @extra @extra = ZipExtraField.new(@extra.to_s) end end |
Instance Attribute Details
#comment ⇒ Object
Returns the value of attribute comment.
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# File 'lib/zip/zip.rb', line 272 def comment @comment end |
#compressed_size ⇒ Object
Returns the value of attribute compressed_size.
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# File 'lib/zip/zip.rb', line 272 def compressed_size @compressed_size end |
#compression_method ⇒ Object
Returns the value of attribute compression_method.
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# File 'lib/zip/zip.rb', line 272 def compression_method @compression_method end |
#crc ⇒ Object
Returns the value of attribute crc.
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# File 'lib/zip/zip.rb', line 272 def crc @crc end |
#externalFileAttributes ⇒ Object
Returns the value of attribute externalFileAttributes.
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# File 'lib/zip/zip.rb', line 272 def externalFileAttributes @externalFileAttributes end |
#extra ⇒ Object
Returns the value of attribute extra.
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# File 'lib/zip/zip.rb', line 272 def extra @extra end |
#fstype ⇒ Object
Returns the value of attribute fstype.
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# File 'lib/zip/zip.rb', line 272 def fstype @fstype end |
#localHeaderOffset ⇒ Object
Returns the value of attribute localHeaderOffset.
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# File 'lib/zip/zip.rb', line 272 def localHeaderOffset @localHeaderOffset end |
#name ⇒ Object
Returns the value of attribute name.
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# File 'lib/zip/zip.rb', line 272 def name @name end |
#size ⇒ Object
Returns the value of attribute size.
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# File 'lib/zip/zip.rb', line 272 def size @size end |
#zipfile ⇒ Object
Returns the value of attribute zipfile.
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# File 'lib/zip/zip.rb', line 272 def zipfile @zipfile end |
Class Method Details
Instance Method Details
#<=>(other) ⇒ Object
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# File 'lib/zip/zip.rb', line 524 def <=> (other) return to_s <=> other.to_s end |
#==(other) ⇒ Object
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# File 'lib/zip/zip.rb', line 512 def == (other) return false unless other.class == ZipEntry # Compares contents of local entry and exposed fields (@compression_method == other.compression_method && @crc == other.crc && @compressed_size == other.compressed_size && @size == other.size && @name == other.name && @extra == other.extra && self.time.dos_equals(other.time)) end |
#cdir_header_size ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 333 def cdir_header_size #:nodoc:all CDIR_ENTRY_STATIC_HEADER_LENGTH + (@name ? @name.size : 0) + (@extra ? @extra.c_dir_size : 0) + (@comment ? @comment.size : 0) end |
#directory? ⇒ Boolean Also known as: is_directory
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# File 'lib/zip/zip.rb', line 316 def directory? return (%r{\/$} =~ @name) != nil end |
#file? ⇒ Boolean
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# File 'lib/zip/zip.rb', line 321 def file? ! directory? end |
#get_input_stream ⇒ Object
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# File 'lib/zip/zip.rb', line 528 def get_input_stream zis = ZipInputStream.new(@zipfile, localHeaderOffset) zis.get_next_entry if block_given? begin return yield(zis) ensure zis.close end else return zis end end |
#get_raw_input_stream(&aProc) ⇒ Object
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# File 'lib/zip/zip.rb', line 553 def get_raw_input_stream(&aProc) File.open(@zipfile, "rb", &aProc) end |
#local_entry_offset ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 325 def local_entry_offset #:nodoc:all localHeaderOffset + local_header_size end |
#local_header_size ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 329 def local_header_size #:nodoc:all LOCAL_ENTRY_STATIC_HEADER_LENGTH + (@name ? @name.size : 0) + (@extra ? @extra.local_size : 0) end |
#next_header_offset ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 338 def next_header_offset #:nodoc:all local_entry_offset + self.compressed_size end |
#parent_as_string ⇒ Object
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# File 'lib/zip/zip.rb', line 547 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
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# File 'lib/zip/zip.rb', line 429 def read_c_dir_entry(io) #:nodoc:all staticSizedFieldsBuf = io.read(CDIR_ENTRY_STATIC_HEADER_LENGTH) unless (staticSizedFieldsBuf.size == CDIR_ENTRY_STATIC_HEADER_LENGTH) raise ZipError, "Premature end of file. Not enough data for zip cdir entry header" end cdirSignature , @version , # version of encoding software @fstype , # filesystem type @versionNeededToExtract, @gpFlags , @compression_method , lastModTime , lastModDate , @crc , @compressed_size , @size , nameLength , extraLength , commentLength , diskNumberStart , @internalFileAttributes, @externalFileAttributes, @localHeaderOffset , @name , @extra , @comment = staticSizedFieldsBuf.unpack('VCCvvvvvVVVvvvvvVV') unless (cdirSignature == CENTRAL_DIRECTORY_ENTRY_SIGNATURE) raise ZipError, "Zip local header magic not found at location '#{localHeaderOffset}'" end set_time(lastModDate, lastModTime) @name = io.read(nameLength) if ZipExtraField === @extra @extra.merge(io.read(extraLength)) else @extra = ZipExtraField.new(io.read(extraLength)) end @comment = io.read(commentLength) unless (@comment && @comment.length == commentLength) raise ZipError, "Truncated cdir zip entry header" end end |
#read_local_entry(io) ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 360 def read_local_entry(io) #:nodoc:all @localHeaderOffset = io.tell staticSizedFieldsBuf = io.read(LOCAL_ENTRY_STATIC_HEADER_LENGTH) unless (staticSizedFieldsBuf.size==LOCAL_ENTRY_STATIC_HEADER_LENGTH) raise ZipError, "Premature end of file. Not enough data for zip entry local header" end localHeader , @version , @fstype , @gpFlags , @compression_method, lastModTime , lastModDate , @crc , @compressed_size , @size , nameLength , extraLength = staticSizedFieldsBuf.unpack('VCCvvvvVVVvv') unless (localHeader == LOCAL_ENTRY_SIGNATURE) raise ZipError, "Zip local header magic not found at location '#{localHeaderOffset}'" end set_time(lastModDate, lastModTime) @name = io.read(nameLength) extra = io.read(extraLength) if (extra && extra.length != extraLength) raise ZipError, "Truncated local zip entry header" else if ZipExtraField === @extra @extra.merge(extra) else @extra = ZipExtraField.new(extra) end end end |
#time ⇒ Object Also known as: mtime
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# File 'lib/zip/zip.rb', line 297 def time if @extra["UniversalTime"] @extra["UniversalTime"].mtime else # Atandard time field in central directory has local time # under archive creator. Then, we can't get timezone. @time end end |
#time=(aTime) ⇒ Object
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# File 'lib/zip/zip.rb', line 308 def time=(aTime) unless @extra.member?("UniversalTime") @extra.create("UniversalTime") end @extra["UniversalTime"].mtime = aTime @time = aTime end |
#to_s ⇒ Object
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# File 'lib/zip/zip.rb', line 342 def to_s @name end |
#write_c_dir_entry(io) ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 483 def write_c_dir_entry(io) #:nodoc:all io << [CENTRAL_DIRECTORY_ENTRY_SIGNATURE, @version , # version of encoding software @fstype , # filesystem type 0 , # @versionNeededToExtract , 0 , # @gpFlags , @compression_method , @time.to_binary_dos_time , # @lastModTime , @time.to_binary_dos_date , # @lastModDate , @crc , @compressed_size , @size , @name ? @name.length : 0 , @extra ? @extra.c_dir_length : 0 , @comment ? comment.length : 0 , 0 , # disk number start @internalFileAttributes , # file type (binary=0, text=1) @externalFileAttributes , # native filesystem attributes @localHeaderOffset , @name , @extra , @comment ].pack('VCCvvvvvVVVvvvvvVV') io << @name io << (@extra ? @extra.to_c_dir_bin : "") io << @comment end |
#write_local_entry(io) ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 407 def write_local_entry(io) #:nodoc:all @localHeaderOffset = io.tell io << [LOCAL_ENTRY_SIGNATURE , 0 , 0 , # @gpFlags , @compression_method , @time.to_binary_dos_time , # @lastModTime , @time.to_binary_dos_date , # @lastModDate , @crc , @compressed_size , @size , @name ? @name.length : 0, @extra? @extra.local_length : 0 ].pack('VvvvvvVVVvv') io << @name io << (@extra ? @extra.to_local_bin : "") end |
#write_to_zip_output_stream(aZipOutputStream) ⇒ Object
:nodoc:all
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# File 'lib/zip/zip.rb', line 543 def write_to_zip_output_stream(aZipOutputStream) #:nodoc:all aZipOutputStream.copy_raw_entry(self) end |