bceb1864df
Fix Session CookieOverflow bug when rescuing an InstikiValidation error. Fix some random things which will cause problems with Ruby 1.9. (Plenty more where those came from.)
1848 lines
51 KiB
Ruby
Executable file
1848 lines
51 KiB
Ruby
Executable file
require 'delegate'
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require 'singleton'
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require 'tempfile'
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require 'fileutils'
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require 'stringio'
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require 'zlib'
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require 'zip/stdrubyext'
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require 'zip/ioextras'
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if Tempfile.superclass == SimpleDelegator
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require 'zip/tempfile_bugfixed'
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Tempfile = BugFix::Tempfile
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end
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module Zlib #:nodoc:all
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if ! const_defined? :MAX_WBITS
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MAX_WBITS = Zlib::Deflate.MAX_WBITS
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end
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end
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module Zip
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VERSION = '0.9.1'
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RUBY_MINOR_VERSION = RUBY_VERSION.split(".")[1].to_i
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RUNNING_ON_WINDOWS = /mswin32|cygwin|mingw|bccwin/ =~ RUBY_PLATFORM
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# Ruby 1.7.x compatibility
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# In ruby 1.6.x and 1.8.0 reading from an empty stream returns
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# an empty string the first time and then nil.
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# not so in 1.7.x
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EMPTY_FILE_RETURNS_EMPTY_STRING_FIRST = RUBY_MINOR_VERSION != 7
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# ZipInputStream is the basic class for reading zip entries in a
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# zip file. It is possible to create a ZipInputStream object directly,
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# passing the zip file name to the constructor, but more often than not
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# the ZipInputStream will be obtained from a ZipFile (perhaps using the
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# ZipFileSystem interface) object for a particular entry in the zip
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# archive.
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#
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# A ZipInputStream inherits IOExtras::AbstractInputStream in order
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# to provide an IO-like interface for reading from a single zip
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# entry. Beyond methods for mimicking an IO-object it contains
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# the method get_next_entry for iterating through the entries of
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# an archive. get_next_entry returns a ZipEntry object that describes
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# the zip entry the ZipInputStream is currently reading from.
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#
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# Example that creates a zip archive with ZipOutputStream and reads it
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# back again with a ZipInputStream.
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#
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# require 'zip/zip'
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#
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# Zip::ZipOutputStream::open("my.zip") {
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# |io|
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#
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# io.put_next_entry("first_entry.txt")
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# io.write "Hello world!"
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#
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# io.put_next_entry("adir/first_entry.txt")
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# io.write "Hello again!"
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# }
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#
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#
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# Zip::ZipInputStream::open("my.zip") {
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# |io|
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#
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# while (entry = io.get_next_entry)
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# puts "Contents of #{entry.name}: '#{io.read}'"
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# end
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# }
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#
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# java.util.zip.ZipInputStream is the original inspiration for this
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# class.
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class ZipInputStream
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include IOExtras::AbstractInputStream
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# Opens the indicated zip file. An exception is thrown
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# if the specified offset in the specified filename is
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# not a local zip entry header.
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def initialize(filename, offset = 0)
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super()
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@archiveIO = File.open(filename, "rb")
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@archiveIO.seek(offset, IO::SEEK_SET)
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@decompressor = NullDecompressor.instance
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@currentEntry = nil
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end
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def close
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@archiveIO.close
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end
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# Same as #initialize but if a block is passed the opened
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# stream is passed to the block and closed when the block
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# returns.
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def ZipInputStream.open(filename)
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return new(filename) unless block_given?
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zio = new(filename)
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yield zio
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ensure
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zio.close if zio
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end
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# Returns a ZipEntry object. It is necessary to call this
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# method on a newly created ZipInputStream before reading from
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# the first entry in the archive. Returns nil when there are
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# no more entries.
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def get_next_entry
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@archiveIO.seek(@currentEntry.next_header_offset,
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IO::SEEK_SET) if @currentEntry
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open_entry
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end
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# Rewinds the stream to the beginning of the current entry
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def rewind
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return if @currentEntry.nil?
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@lineno = 0
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@archiveIO.seek(@currentEntry.localHeaderOffset,
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IO::SEEK_SET)
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open_entry
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end
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# Modeled after IO.sysread
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def sysread(numberOfBytes = nil, buf = nil)
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@decompressor.sysread(numberOfBytes, buf)
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end
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def eof
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@outputBuffer.empty? && @decompressor.eof
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end
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alias :eof? :eof
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protected
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def open_entry
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@currentEntry = ZipEntry.read_local_entry(@archiveIO)
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if (@currentEntry == nil)
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@decompressor = NullDecompressor.instance
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elsif @currentEntry.compression_method == ZipEntry::STORED
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@decompressor = PassThruDecompressor.new(@archiveIO,
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@currentEntry.size)
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elsif @currentEntry.compression_method == ZipEntry::DEFLATED
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@decompressor = Inflater.new(@archiveIO)
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else
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raise ZipCompressionMethodError,
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"Unsupported compression method #{@currentEntry.compression_method}"
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end
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flush
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return @currentEntry
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end
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def produce_input
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@decompressor.produce_input
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end
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def input_finished?
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@decompressor.input_finished?
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end
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end
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class Decompressor #:nodoc:all
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CHUNK_SIZE=32768
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def initialize(inputStream)
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super()
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@inputStream=inputStream
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end
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end
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class Inflater < Decompressor #:nodoc:all
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def initialize(inputStream)
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super
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@zlibInflater = Zlib::Inflate.new(-Zlib::MAX_WBITS)
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@outputBuffer=""
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@hasReturnedEmptyString = ! EMPTY_FILE_RETURNS_EMPTY_STRING_FIRST
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end
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def sysread(numberOfBytes = nil, buf = nil)
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readEverything = (numberOfBytes == nil)
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while (readEverything || @outputBuffer.length < numberOfBytes)
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break if internal_input_finished?
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@outputBuffer << internal_produce_input(buf)
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end
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return value_when_finished if @outputBuffer.length==0 && input_finished?
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endIndex= numberOfBytes==nil ? @outputBuffer.length : numberOfBytes
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return @outputBuffer.slice!(0...endIndex)
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end
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def produce_input
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if (@outputBuffer.empty?)
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return internal_produce_input
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else
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return @outputBuffer.slice!(0...(@outputBuffer.length))
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end
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end
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# to be used with produce_input, not read (as read may still have more data cached)
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# is data cached anywhere other than @outputBuffer? the comment above may be wrong
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def input_finished?
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@outputBuffer.empty? && internal_input_finished?
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end
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alias :eof :input_finished?
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alias :eof? :input_finished?
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private
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def internal_produce_input(buf = nil)
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retried = 0
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begin
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@zlibInflater.inflate(@inputStream.read(Decompressor::CHUNK_SIZE, buf))
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rescue Zlib::BufError
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raise if (retried >= 5) # how many times should we retry?
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retried += 1
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retry
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end
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end
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def internal_input_finished?
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@zlibInflater.finished?
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end
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# TODO: Specialize to handle different behaviour in ruby > 1.7.0 ?
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def value_when_finished # mimic behaviour of ruby File object.
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return nil if @hasReturnedEmptyString
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@hasReturnedEmptyString=true
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return ""
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end
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end
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class PassThruDecompressor < Decompressor #:nodoc:all
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def initialize(inputStream, charsToRead)
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super inputStream
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@charsToRead = charsToRead
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@readSoFar = 0
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@hasReturnedEmptyString = ! EMPTY_FILE_RETURNS_EMPTY_STRING_FIRST
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end
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# TODO: Specialize to handle different behaviour in ruby > 1.7.0 ?
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def sysread(numberOfBytes = nil, buf = nil)
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if input_finished?
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hasReturnedEmptyStringVal=@hasReturnedEmptyString
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@hasReturnedEmptyString=true
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return "" unless hasReturnedEmptyStringVal
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return nil
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end
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if (numberOfBytes == nil || @readSoFar+numberOfBytes > @charsToRead)
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numberOfBytes = @charsToRead-@readSoFar
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end
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@readSoFar += numberOfBytes
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@inputStream.read(numberOfBytes, buf)
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end
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def produce_input
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sysread(Decompressor::CHUNK_SIZE)
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end
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def input_finished?
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(@readSoFar >= @charsToRead)
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end
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alias :eof :input_finished?
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alias :eof? :input_finished?
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end
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class NullDecompressor #:nodoc:all
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include Singleton
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def sysread(numberOfBytes = nil, buf = nil)
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nil
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end
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def produce_input
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nil
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end
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def input_finished?
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true
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end
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def eof
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true
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end
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alias :eof? :eof
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end
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class NullInputStream < NullDecompressor #:nodoc:all
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include IOExtras::AbstractInputStream
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end
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class ZipEntry
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STORED = 0
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DEFLATED = 8
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FSTYPE_FAT = 0
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FSTYPE_AMIGA = 1
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FSTYPE_VMS = 2
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FSTYPE_UNIX = 3
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FSTYPE_VM_CMS = 4
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FSTYPE_ATARI = 5
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FSTYPE_HPFS = 6
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FSTYPE_MAC = 7
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FSTYPE_Z_SYSTEM = 8
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FSTYPE_CPM = 9
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FSTYPE_TOPS20 = 10
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FSTYPE_NTFS = 11
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FSTYPE_QDOS = 12
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FSTYPE_ACORN = 13
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FSTYPE_VFAT = 14
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FSTYPE_MVS = 15
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FSTYPE_BEOS = 16
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FSTYPE_TANDEM = 17
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FSTYPE_THEOS = 18
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FSTYPE_MAC_OSX = 19
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FSTYPE_ATHEOS = 30
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FSTYPES = {
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FSTYPE_FAT => 'FAT'.freeze,
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FSTYPE_AMIGA => 'Amiga'.freeze,
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FSTYPE_VMS => 'VMS (Vax or Alpha AXP)'.freeze,
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FSTYPE_UNIX => 'Unix'.freeze,
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FSTYPE_VM_CMS => 'VM/CMS'.freeze,
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FSTYPE_ATARI => 'Atari ST'.freeze,
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FSTYPE_HPFS => 'OS/2 or NT HPFS'.freeze,
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FSTYPE_MAC => 'Macintosh'.freeze,
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FSTYPE_Z_SYSTEM => 'Z-System'.freeze,
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FSTYPE_CPM => 'CP/M'.freeze,
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FSTYPE_TOPS20 => 'TOPS-20'.freeze,
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FSTYPE_NTFS => 'NTFS'.freeze,
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FSTYPE_QDOS => 'SMS/QDOS'.freeze,
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FSTYPE_ACORN => 'Acorn RISC OS'.freeze,
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FSTYPE_VFAT => 'Win32 VFAT'.freeze,
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FSTYPE_MVS => 'MVS'.freeze,
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FSTYPE_BEOS => 'BeOS'.freeze,
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FSTYPE_TANDEM => 'Tandem NSK'.freeze,
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FSTYPE_THEOS => 'Theos'.freeze,
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FSTYPE_MAC_OSX => 'Mac OS/X (Darwin)'.freeze,
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FSTYPE_ATHEOS => 'AtheOS'.freeze,
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}.freeze
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attr_accessor :comment, :compressed_size, :crc, :extra, :compression_method,
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:name, :size, :localHeaderOffset, :zipfile, :fstype, :externalFileAttributes, :gp_flags, :header_signature
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attr_accessor :follow_symlinks
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attr_accessor :restore_times, :restore_permissions, :restore_ownership
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attr_accessor :unix_uid, :unix_gid, :unix_perms
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attr_reader :ftype, :filepath # :nodoc:
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def initialize(zipfile = "", name = "", comment = "", extra = "",
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compressed_size = 0, crc = 0,
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compression_method = ZipEntry::DEFLATED, size = 0,
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time = Time.now)
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super()
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if name.starts_with("/")
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raise ZipEntryNameError, "Illegal ZipEntry name '#{name}', name must not start with /"
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end
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@localHeaderOffset = 0
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@internalFileAttributes = 1
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@externalFileAttributes = 0
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@version = 52 # this library's version
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@ftype = nil # unspecified or unknown
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@filepath = nil
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if Zip::RUNNING_ON_WINDOWS
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@fstype = FSTYPE_FAT
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else
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@fstype = FSTYPE_UNIX
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end
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@zipfile, @comment, @compressed_size, @crc, @extra, @compression_method,
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@name, @size = zipfile, comment, compressed_size, crc,
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extra, compression_method, name, size
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@time = time
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@follow_symlinks = false
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@restore_times = true
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@restore_permissions = false
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@restore_ownership = false
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# BUG: need an extra field to support uid/gid's
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@unix_uid = nil
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@unix_gid = nil
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@unix_perms = nil
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# @posix_acl = nil
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# @ntfs_acl = nil
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if name_is_directory?
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@ftype = :directory
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else
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@ftype = :file
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end
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unless ZipExtraField === @extra
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@extra = ZipExtraField.new(@extra.to_s)
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end
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end
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def time
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if @extra["UniversalTime"]
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@extra["UniversalTime"].mtime
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else
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# Atandard time field in central directory has local time
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# under archive creator. Then, we can't get timezone.
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@time
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end
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end
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alias :mtime :time
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def time=(aTime)
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unless @extra.member?("UniversalTime")
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@extra.create("UniversalTime")
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end
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@extra["UniversalTime"].mtime = aTime
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@time = aTime
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end
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# Returns +true+ if the entry is a directory.
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def directory?
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raise ZipInternalError, "current filetype is unknown: #{self.inspect}" unless @ftype
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@ftype == :directory
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end
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alias :is_directory :directory?
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# Returns +true+ if the entry is a file.
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def file?
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raise ZipInternalError, "current filetype is unknown: #{self.inspect}" unless @ftype
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@ftype == :file
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end
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# Returns +true+ if the entry is a symlink.
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def symlink?
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raise ZipInternalError, "current filetype is unknown: #{self.inspect}" unless @ftype
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@ftype == :link
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end
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def name_is_directory? #:nodoc:all
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(%r{\/$} =~ @name) != nil
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end
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def local_entry_offset #:nodoc:all
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localHeaderOffset + local_header_size
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end
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def local_header_size #:nodoc:all
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LOCAL_ENTRY_STATIC_HEADER_LENGTH + (@name ? @name.size : 0) + (@extra ? @extra.local_size : 0)
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end
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def cdir_header_size #:nodoc:all
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CDIR_ENTRY_STATIC_HEADER_LENGTH + (@name ? @name.size : 0) +
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(@extra ? @extra.c_dir_size : 0) + (@comment ? @comment.size : 0)
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end
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def next_header_offset #:nodoc:all
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local_entry_offset + self.compressed_size
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end
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# Extracts entry to file destPath (defaults to @name).
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def extract(destPath = @name, &onExistsProc)
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onExistsProc ||= proc { false }
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if directory?
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create_directory(destPath, &onExistsProc)
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elsif file?
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write_file(destPath, &onExistsProc)
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elsif symlink?
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create_symlink(destPath, &onExistsProc)
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else
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raise RuntimeError, "unknown file type #{self.inspect}"
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end
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self
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end
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def to_s
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@name
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end
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protected
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def ZipEntry.read_zip_short(io) # :nodoc:
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io.read(2).unpack('v')[0]
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end
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def ZipEntry.read_zip_long(io) # :nodoc:
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io.read(4).unpack('V')[0]
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end
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public
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LOCAL_ENTRY_SIGNATURE = 0x04034b50
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LOCAL_ENTRY_STATIC_HEADER_LENGTH = 30
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LOCAL_ENTRY_TRAILING_DESCRIPTOR_LENGTH = 4+4+4
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def read_local_entry(io) #:nodoc:all
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@localHeaderOffset = io.tell
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staticSizedFieldsBuf = io.read(LOCAL_ENTRY_STATIC_HEADER_LENGTH)
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unless (staticSizedFieldsBuf.size==LOCAL_ENTRY_STATIC_HEADER_LENGTH)
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raise ZipError, "Premature end of file. Not enough data for zip entry local header"
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end
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@header_signature ,
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@version ,
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@fstype ,
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@gp_flags ,
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@compression_method,
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lastModTime ,
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lastModDate ,
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@crc ,
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@compressed_size ,
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@size ,
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nameLength ,
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extraLength = staticSizedFieldsBuf.unpack('VCCvvvvVVVvv')
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unless (@header_signature == LOCAL_ENTRY_SIGNATURE)
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raise ZipError, "Zip local header magic not found at location '#{localHeaderOffset}'"
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end
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set_time(lastModDate, lastModTime)
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@name = io.read(nameLength)
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extra = io.read(extraLength)
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if (extra && extra.length != extraLength)
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raise ZipError, "Truncated local zip entry header"
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else
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if ZipExtraField === @extra
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@extra.merge(extra)
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else
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@extra = ZipExtraField.new(extra)
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end
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end
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end
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def ZipEntry.read_local_entry(io)
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entry = new(io.path)
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entry.read_local_entry(io)
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return entry
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rescue ZipError
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return nil
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end
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def write_local_entry(io) #:nodoc:all
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@localHeaderOffset = io.tell
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io <<
|
|
[LOCAL_ENTRY_SIGNATURE ,
|
|
0 ,
|
|
0 , # @gp_flags ,
|
|
@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
|
|
|
|
CENTRAL_DIRECTORY_ENTRY_SIGNATURE = 0x02014b50
|
|
CDIR_ENTRY_STATIC_HEADER_LENGTH = 46
|
|
|
|
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
|
|
|
|
@header_signature ,
|
|
@version , # version of encoding software
|
|
@fstype , # filesystem type
|
|
@versionNeededToExtract,
|
|
@gp_flags ,
|
|
@compression_method ,
|
|
lastModTime ,
|
|
lastModDate ,
|
|
@crc ,
|
|
@compressed_size ,
|
|
@size ,
|
|
nameLength ,
|
|
extraLength ,
|
|
commentLength ,
|
|
diskNumberStart ,
|
|
@internalFileAttributes,
|
|
@externalFileAttributes,
|
|
@localHeaderOffset ,
|
|
@name ,
|
|
@extra ,
|
|
@comment = staticSizedFieldsBuf.unpack('VCCvvvvvVVVvvvvvVV')
|
|
|
|
unless (@header_signature == 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
|
|
|
|
case @fstype
|
|
when FSTYPE_UNIX
|
|
@unix_perms = (@externalFileAttributes >> 16) & 07777
|
|
|
|
case (@externalFileAttributes >> 28)
|
|
when 04
|
|
@ftype = :directory
|
|
when 010
|
|
@ftype = :file
|
|
when 012
|
|
@ftype = :link
|
|
else
|
|
raise ZipInternalError, "unknown file type #{'0%o' % (@externalFileAttributes >> 28)}"
|
|
end
|
|
else
|
|
if name_is_directory?
|
|
@ftype = :directory
|
|
else
|
|
@ftype = :file
|
|
end
|
|
end
|
|
end
|
|
|
|
def ZipEntry.read_c_dir_entry(io) #:nodoc:all
|
|
entry = new(io.path)
|
|
entry.read_c_dir_entry(io)
|
|
return entry
|
|
rescue ZipError
|
|
return nil
|
|
end
|
|
|
|
def file_stat(path) # :nodoc:
|
|
if @follow_symlinks
|
|
return File::stat(path)
|
|
else
|
|
return File::lstat(path)
|
|
end
|
|
end
|
|
|
|
def get_extra_attributes_from_path(path) # :nodoc:
|
|
unless Zip::RUNNING_ON_WINDOWS
|
|
stat = file_stat(path)
|
|
@unix_uid = stat.uid
|
|
@unix_gid = stat.gid
|
|
@unix_perms = stat.mode & 07777
|
|
end
|
|
end
|
|
|
|
def set_extra_attributes_on_path(destPath) # :nodoc:
|
|
return unless (file? or directory?)
|
|
|
|
case @fstype
|
|
when FSTYPE_UNIX
|
|
# 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)
|
|
File::chmod(@unix_perms & unix_perms_mask, destPath) if (@restore_permissions && @unix_perms)
|
|
File::chown(@unix_uid, @unix_gid, destPath) if (@restore_ownership && @unix_uid && @unix_gid && Process::egid == 0)
|
|
# File::utimes()
|
|
end
|
|
end
|
|
|
|
def write_c_dir_entry(io) #:nodoc:all
|
|
case @fstype
|
|
when FSTYPE_UNIX
|
|
ft = nil
|
|
case @ftype
|
|
when :file
|
|
ft = 010
|
|
@unix_perms ||= 0644
|
|
when :directory
|
|
ft = 004
|
|
@unix_perms ||= 0755
|
|
when :symlink
|
|
ft = 012
|
|
@unix_perms ||= 0755
|
|
else
|
|
raise ZipInternalError, "unknown file type #{self.inspect}"
|
|
end
|
|
|
|
@externalFileAttributes = (ft << 12 | (@unix_perms & 07777)) << 16
|
|
end
|
|
|
|
io <<
|
|
[CENTRAL_DIRECTORY_ENTRY_SIGNATURE,
|
|
@version , # version of encoding software
|
|
@fstype , # filesystem type
|
|
0 , # @versionNeededToExtract ,
|
|
0 , # @gp_flags ,
|
|
@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
|
|
|
|
def == (other)
|
|
return false unless other.class == self.class
|
|
# 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 &&
|
|
@filepath == other.filepath &&
|
|
self.time.dos_equals(other.time))
|
|
end
|
|
|
|
def <=> (other)
|
|
return to_s <=> other.to_s
|
|
end
|
|
|
|
# Returns an IO like object for the given ZipEntry.
|
|
# Warning: may behave weird with symlinks.
|
|
def get_input_stream(&aProc)
|
|
if @ftype == :directory
|
|
return yield(NullInputStream.instance) if block_given?
|
|
return NullInputStream.instance
|
|
elsif @filepath
|
|
case @ftype
|
|
when :file
|
|
return File.open(@filepath, "rb", &aProc)
|
|
|
|
when :symlink
|
|
linkpath = File::readlink(@filepath)
|
|
stringio = StringIO.new(linkpath)
|
|
return yield(stringio) if block_given?
|
|
return stringio
|
|
else
|
|
raise "unknown @ftype #{@ftype}"
|
|
end
|
|
else
|
|
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
|
|
end
|
|
|
|
def gather_fileinfo_from_srcpath(srcPath) # :nodoc:
|
|
stat = file_stat(srcPath)
|
|
case stat.ftype
|
|
when 'file'
|
|
if name_is_directory?
|
|
raise ArgumentError,
|
|
"entry name '#{newEntry}' indicates directory entry, but "+
|
|
"'#{srcPath}' is not a directory"
|
|
end
|
|
@ftype = :file
|
|
when 'directory'
|
|
if ! name_is_directory?
|
|
@name += "/"
|
|
end
|
|
@ftype = :directory
|
|
when 'link'
|
|
if name_is_directory?
|
|
raise ArgumentError,
|
|
"entry name '#{newEntry}' indicates directory entry, but "+
|
|
"'#{srcPath}' is not a directory"
|
|
end
|
|
@ftype = :symlink
|
|
else
|
|
raise RuntimeError, "unknown file type: #{srcPath.inspect} #{stat.inspect}"
|
|
end
|
|
|
|
@filepath = srcPath
|
|
get_extra_attributes_from_path(@filepath)
|
|
end
|
|
|
|
def write_to_zip_output_stream(aZipOutputStream) #:nodoc:all
|
|
if @ftype == :directory
|
|
aZipOutputStream.put_next_entry(self)
|
|
elsif @filepath
|
|
aZipOutputStream.put_next_entry(self)
|
|
get_input_stream { |is| IOExtras.copy_stream(aZipOutputStream, is) }
|
|
else
|
|
aZipOutputStream.copy_raw_entry(self)
|
|
end
|
|
end
|
|
|
|
def parent_as_string
|
|
entry_name = name.chomp("/")
|
|
slash_index = entry_name.rindex("/")
|
|
slash_index ? entry_name.slice(0, slash_index+1) : nil
|
|
end
|
|
|
|
def get_raw_input_stream(&aProc)
|
|
File.open(@zipfile, "rb", &aProc)
|
|
end
|
|
|
|
private
|
|
|
|
def set_time(binaryDosDate, binaryDosTime)
|
|
@time = Time.parse_binary_dos_format(binaryDosDate, binaryDosTime)
|
|
rescue ArgumentError
|
|
puts "Invalid date/time in zip entry"
|
|
end
|
|
|
|
def write_file(destPath, continueOnExistsProc = proc { false })
|
|
if File.exists?(destPath) && ! yield(self, destPath)
|
|
raise ZipDestinationFileExistsError,
|
|
"Destination '#{destPath}' already exists"
|
|
end
|
|
File.open(destPath, "wb") do |os|
|
|
get_input_stream do |is|
|
|
set_extra_attributes_on_path(destPath)
|
|
|
|
buf = ''
|
|
while buf = is.sysread(Decompressor::CHUNK_SIZE, buf)
|
|
os << buf
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def create_directory(destPath)
|
|
if File.directory? destPath
|
|
return
|
|
elsif File.exists? destPath
|
|
if block_given? && yield(self, destPath)
|
|
File.rm_f destPath
|
|
else
|
|
raise ZipDestinationFileExistsError,
|
|
"Cannot create directory '#{destPath}'. "+
|
|
"A file already exists with that name"
|
|
end
|
|
end
|
|
Dir.mkdir destPath
|
|
set_extra_attributes_on_path(destPath)
|
|
end
|
|
|
|
# BUG: create_symlink() does not use &onExistsProc
|
|
def create_symlink(destPath)
|
|
stat = nil
|
|
begin
|
|
stat = File::lstat(destPath)
|
|
rescue Errno::ENOENT
|
|
end
|
|
|
|
io = get_input_stream
|
|
linkto = io.read
|
|
|
|
if stat
|
|
if stat.symlink?
|
|
if File::readlink(destPath) == linkto
|
|
return
|
|
else
|
|
raise ZipDestinationFileExistsError,
|
|
"Cannot create symlink '#{destPath}'. "+
|
|
"A symlink already exists with that name"
|
|
end
|
|
else
|
|
raise ZipDestinationFileExistsError,
|
|
"Cannot create symlink '#{destPath}'. "+
|
|
"A file already exists with that name"
|
|
end
|
|
end
|
|
|
|
File::symlink(linkto, destPath)
|
|
end
|
|
end
|
|
|
|
|
|
# ZipOutputStream is the basic class for writing zip files. It is
|
|
# possible to create a ZipOutputStream object directly, passing
|
|
# the zip file name to the constructor, but more often than not
|
|
# the ZipOutputStream will be obtained from a ZipFile (perhaps using the
|
|
# ZipFileSystem interface) object for a particular entry in the zip
|
|
# archive.
|
|
#
|
|
# A ZipOutputStream inherits IOExtras::AbstractOutputStream in order
|
|
# to provide an IO-like interface for writing to a single zip
|
|
# entry. Beyond methods for mimicking an IO-object it contains
|
|
# the method put_next_entry that closes the current entry
|
|
# and creates a new.
|
|
#
|
|
# Please refer to ZipInputStream for example code.
|
|
#
|
|
# java.util.zip.ZipOutputStream is the original inspiration for this
|
|
# class.
|
|
|
|
class ZipOutputStream
|
|
include IOExtras::AbstractOutputStream
|
|
|
|
attr_accessor :comment
|
|
|
|
# Opens the indicated zip file. If a file with that name already
|
|
# exists it will be overwritten.
|
|
def initialize(fileName)
|
|
super()
|
|
@fileName = fileName
|
|
@outputStream = File.new(@fileName, "wb")
|
|
@entrySet = ZipEntrySet.new
|
|
@compressor = NullCompressor.instance
|
|
@closed = false
|
|
@currentEntry = nil
|
|
@comment = nil
|
|
end
|
|
|
|
# Same as #initialize but if a block is passed the opened
|
|
# stream is passed to the block and closed when the block
|
|
# returns.
|
|
def ZipOutputStream.open(fileName)
|
|
return new(fileName) unless block_given?
|
|
zos = new(fileName)
|
|
yield zos
|
|
ensure
|
|
zos.close if zos
|
|
end
|
|
|
|
# Closes the stream and writes the central directory to the zip file
|
|
def close
|
|
return if @closed
|
|
finalize_current_entry
|
|
update_local_headers
|
|
write_central_directory
|
|
@outputStream.close
|
|
@closed = true
|
|
end
|
|
|
|
# Closes the current entry and opens a new for writing.
|
|
# +entry+ can be a ZipEntry object or a string.
|
|
def put_next_entry(entry, level = Zlib::DEFAULT_COMPRESSION)
|
|
raise ZipError, "zip stream is closed" if @closed
|
|
newEntry = entry.kind_of?(ZipEntry) ? entry : ZipEntry.new(@fileName, entry.to_s)
|
|
init_next_entry(newEntry, level)
|
|
@currentEntry=newEntry
|
|
end
|
|
|
|
def copy_raw_entry(entry)
|
|
entry = entry.dup
|
|
raise ZipError, "zip stream is closed" if @closed
|
|
raise ZipError, "entry is not a ZipEntry" if !entry.kind_of?(ZipEntry)
|
|
finalize_current_entry
|
|
@entrySet << entry
|
|
src_pos = entry.local_entry_offset
|
|
entry.write_local_entry(@outputStream)
|
|
@compressor = NullCompressor.instance
|
|
@outputStream << entry.get_raw_input_stream {
|
|
|is|
|
|
is.seek(src_pos, IO::SEEK_SET)
|
|
is.read(entry.compressed_size)
|
|
}
|
|
@compressor = NullCompressor.instance
|
|
@currentEntry = nil
|
|
end
|
|
|
|
private
|
|
def finalize_current_entry
|
|
return unless @currentEntry
|
|
finish
|
|
@currentEntry.compressed_size = @outputStream.tell - @currentEntry.localHeaderOffset -
|
|
@currentEntry.local_header_size
|
|
@currentEntry.size = @compressor.size
|
|
@currentEntry.crc = @compressor.crc
|
|
@currentEntry = nil
|
|
@compressor = NullCompressor.instance
|
|
end
|
|
|
|
def init_next_entry(entry, level = Zlib::DEFAULT_COMPRESSION)
|
|
finalize_current_entry
|
|
@entrySet << entry
|
|
entry.write_local_entry(@outputStream)
|
|
@compressor = get_compressor(entry, level)
|
|
end
|
|
|
|
def get_compressor(entry, level)
|
|
case entry.compression_method
|
|
when ZipEntry::DEFLATED then Deflater.new(@outputStream, level)
|
|
when ZipEntry::STORED then PassThruCompressor.new(@outputStream)
|
|
else raise ZipCompressionMethodError,
|
|
"Invalid compression method: '#{entry.compression_method}'"
|
|
end
|
|
end
|
|
|
|
def update_local_headers
|
|
pos = @outputStream.tell
|
|
@entrySet.each {
|
|
|entry|
|
|
@outputStream.pos = entry.localHeaderOffset
|
|
entry.write_local_entry(@outputStream)
|
|
}
|
|
@outputStream.pos = pos
|
|
end
|
|
|
|
def write_central_directory
|
|
cdir = ZipCentralDirectory.new(@entrySet, @comment)
|
|
cdir.write_to_stream(@outputStream)
|
|
end
|
|
|
|
protected
|
|
|
|
def finish
|
|
@compressor.finish
|
|
end
|
|
|
|
public
|
|
# Modeled after IO.<<
|
|
def << (data)
|
|
@compressor << data
|
|
end
|
|
end
|
|
|
|
|
|
class Compressor #:nodoc:all
|
|
def finish
|
|
end
|
|
end
|
|
|
|
class PassThruCompressor < Compressor #:nodoc:all
|
|
def initialize(outputStream)
|
|
super()
|
|
@outputStream = outputStream
|
|
@crc = Zlib::crc32
|
|
@size = 0
|
|
end
|
|
|
|
def << (data)
|
|
val = data.to_s
|
|
@crc = Zlib::crc32(val, @crc)
|
|
@size += val.size
|
|
@outputStream << val
|
|
end
|
|
|
|
attr_reader :size, :crc
|
|
end
|
|
|
|
class NullCompressor < Compressor #:nodoc:all
|
|
include Singleton
|
|
|
|
def << (data)
|
|
raise IOError, "closed stream"
|
|
end
|
|
|
|
attr_reader :size, :compressed_size
|
|
end
|
|
|
|
class Deflater < Compressor #:nodoc:all
|
|
def initialize(outputStream, level = Zlib::DEFAULT_COMPRESSION)
|
|
super()
|
|
@outputStream = outputStream
|
|
@zlibDeflater = Zlib::Deflate.new(level, -Zlib::MAX_WBITS)
|
|
@size = 0
|
|
@crc = Zlib::crc32
|
|
end
|
|
|
|
def << (data)
|
|
val = data.to_s
|
|
@crc = Zlib::crc32(val, @crc)
|
|
@size += val.size
|
|
@outputStream << @zlibDeflater.deflate(data)
|
|
end
|
|
|
|
def finish
|
|
until @zlibDeflater.finished?
|
|
@outputStream << @zlibDeflater.finish
|
|
end
|
|
end
|
|
|
|
attr_reader :size, :crc
|
|
end
|
|
|
|
|
|
class ZipEntrySet #:nodoc:all
|
|
include Enumerable
|
|
|
|
def initialize(anEnumerable = [])
|
|
super()
|
|
@entrySet = {}
|
|
anEnumerable.each { |o| push(o) }
|
|
end
|
|
|
|
def include?(entry)
|
|
@entrySet.include?(entry.to_s)
|
|
end
|
|
|
|
def <<(entry)
|
|
@entrySet[entry.to_s] = entry
|
|
end
|
|
alias :push :<<
|
|
|
|
def size
|
|
@entrySet.size
|
|
end
|
|
alias :length :size
|
|
|
|
def delete(entry)
|
|
@entrySet.delete(entry.to_s) ? entry : nil
|
|
end
|
|
|
|
def each(&aProc)
|
|
@entrySet.values.each(&aProc)
|
|
end
|
|
|
|
def entries
|
|
@entrySet.values
|
|
end
|
|
|
|
# deep clone
|
|
def dup
|
|
newZipEntrySet = ZipEntrySet.new(@entrySet.values.map { |e| e.dup })
|
|
end
|
|
|
|
def == (other)
|
|
return false unless other.kind_of?(ZipEntrySet)
|
|
return @entrySet == other.entrySet
|
|
end
|
|
|
|
def parent(entry)
|
|
@entrySet[entry.parent_as_string]
|
|
end
|
|
|
|
def glob(pattern, flags = File::FNM_PATHNAME|File::FNM_DOTMATCH)
|
|
entries.select {
|
|
|entry|
|
|
File.fnmatch(pattern, entry.name.chomp('/'), flags)
|
|
}
|
|
end
|
|
|
|
#TODO attr_accessor :auto_create_directories
|
|
protected
|
|
attr_accessor :entrySet
|
|
end
|
|
|
|
|
|
class ZipCentralDirectory
|
|
include Enumerable
|
|
|
|
END_OF_CENTRAL_DIRECTORY_SIGNATURE = 0x06054b50
|
|
MAX_END_OF_CENTRAL_DIRECTORY_STRUCTURE_SIZE = 65536 + 18
|
|
STATIC_EOCD_SIZE = 22
|
|
|
|
attr_reader :comment
|
|
|
|
# Returns an Enumerable containing the entries.
|
|
def entries
|
|
@entrySet.entries
|
|
end
|
|
|
|
def initialize(entries = ZipEntrySet.new, comment = "") #:nodoc:
|
|
super()
|
|
@entrySet = entries.kind_of?(ZipEntrySet) ? entries : ZipEntrySet.new(entries)
|
|
@comment = comment
|
|
end
|
|
|
|
def write_to_stream(io) #:nodoc:
|
|
offset = io.tell
|
|
@entrySet.each { |entry| entry.write_c_dir_entry(io) }
|
|
write_e_o_c_d(io, offset)
|
|
end
|
|
|
|
def write_e_o_c_d(io, offset) #:nodoc:
|
|
io <<
|
|
[END_OF_CENTRAL_DIRECTORY_SIGNATURE,
|
|
0 , # @numberOfThisDisk
|
|
0 , # @numberOfDiskWithStartOfCDir
|
|
@entrySet? @entrySet.size : 0 ,
|
|
@entrySet? @entrySet.size : 0 ,
|
|
cdir_size ,
|
|
offset ,
|
|
@comment ? @comment.length : 0 ].pack('VvvvvVVv')
|
|
io << @comment
|
|
end
|
|
private :write_e_o_c_d
|
|
|
|
def cdir_size #:nodoc:
|
|
# does not include eocd
|
|
@entrySet.inject(0) { |value, entry| entry.cdir_header_size + value }
|
|
end
|
|
private :cdir_size
|
|
|
|
def read_e_o_c_d(io) #:nodoc:
|
|
buf = get_e_o_c_d(io)
|
|
@numberOfThisDisk = ZipEntry::read_zip_short(buf)
|
|
@numberOfDiskWithStartOfCDir = ZipEntry::read_zip_short(buf)
|
|
@totalNumberOfEntriesInCDirOnThisDisk = ZipEntry::read_zip_short(buf)
|
|
@size = ZipEntry::read_zip_short(buf)
|
|
@sizeInBytes = ZipEntry::read_zip_long(buf)
|
|
@cdirOffset = ZipEntry::read_zip_long(buf)
|
|
commentLength = ZipEntry::read_zip_short(buf)
|
|
@comment = buf.read(commentLength)
|
|
raise ZipError, "Zip consistency problem while reading eocd structure" unless buf.size == 0
|
|
end
|
|
|
|
def read_central_directory_entries(io) #:nodoc:
|
|
begin
|
|
io.seek(@cdirOffset, IO::SEEK_SET)
|
|
rescue Errno::EINVAL
|
|
raise ZipError, "Zip consistency problem while reading central directory entry"
|
|
end
|
|
@entrySet = ZipEntrySet.new
|
|
@size.times {
|
|
@entrySet << ZipEntry.read_c_dir_entry(io)
|
|
}
|
|
end
|
|
|
|
def read_from_stream(io) #:nodoc:
|
|
read_e_o_c_d(io)
|
|
read_central_directory_entries(io)
|
|
end
|
|
|
|
def get_e_o_c_d(io) #:nodoc:
|
|
begin
|
|
io.seek(-MAX_END_OF_CENTRAL_DIRECTORY_STRUCTURE_SIZE, IO::SEEK_END)
|
|
rescue Errno::EINVAL
|
|
io.seek(0, IO::SEEK_SET)
|
|
rescue Errno::EFBIG # FreeBSD 4.9 raise Errno::EFBIG instead of Errno::EINVAL
|
|
io.seek(0, IO::SEEK_SET)
|
|
end
|
|
|
|
# 'buf = io.read' substituted with lump of code to work around FreeBSD 4.5 issue
|
|
retried = false
|
|
buf = nil
|
|
begin
|
|
buf = io.read
|
|
rescue Errno::EFBIG # FreeBSD 4.5 may raise Errno::EFBIG
|
|
raise if (retried)
|
|
retried = true
|
|
|
|
io.seek(0, IO::SEEK_SET)
|
|
retry
|
|
end
|
|
|
|
sigIndex = buf.rindex([END_OF_CENTRAL_DIRECTORY_SIGNATURE].pack('V'))
|
|
raise ZipError, "Zip end of central directory signature not found" unless sigIndex
|
|
buf=buf.slice!((sigIndex+4)...(buf.size))
|
|
def buf.read(count)
|
|
slice!(0, count)
|
|
end
|
|
return buf
|
|
end
|
|
|
|
# For iterating over the entries.
|
|
def each(&proc)
|
|
@entrySet.each(&proc)
|
|
end
|
|
|
|
# Returns the number of entries in the central directory (and
|
|
# consequently in the zip archive).
|
|
def size
|
|
@entrySet.size
|
|
end
|
|
|
|
def ZipCentralDirectory.read_from_stream(io) #:nodoc:
|
|
cdir = new
|
|
cdir.read_from_stream(io)
|
|
return cdir
|
|
rescue ZipError
|
|
return nil
|
|
end
|
|
|
|
def == (other) #:nodoc:
|
|
return false unless other.kind_of?(ZipCentralDirectory)
|
|
@entrySet.entries.sort == other.entries.sort && comment == other.comment
|
|
end
|
|
end
|
|
|
|
|
|
class ZipError < StandardError ; end
|
|
|
|
class ZipEntryExistsError < ZipError; end
|
|
class ZipDestinationFileExistsError < ZipError; end
|
|
class ZipCompressionMethodError < ZipError; end
|
|
class ZipEntryNameError < ZipError; end
|
|
class ZipInternalError < ZipError; end
|
|
|
|
# ZipFile is modeled after java.util.zip.ZipFile from the Java SDK.
|
|
# The most important methods are those inherited from
|
|
# ZipCentralDirectory for accessing information about the entries in
|
|
# the archive and methods such as get_input_stream and
|
|
# get_output_stream for reading from and writing entries to the
|
|
# archive. The class includes a few convenience methods such as
|
|
# #extract for extracting entries to the filesystem, and #remove,
|
|
# #replace, #rename and #mkdir for making simple modifications to
|
|
# the archive.
|
|
#
|
|
# Modifications to a zip archive are not committed until #commit or
|
|
# #close is called. The method #open accepts a block following
|
|
# the pattern from File.open offering a simple way to
|
|
# automatically close the archive when the block returns.
|
|
#
|
|
# The following example opens zip archive <code>my.zip</code>
|
|
# (creating it if it doesn't exist) and adds an entry
|
|
# <code>first.txt</code> and a directory entry <code>a_dir</code>
|
|
# to it.
|
|
#
|
|
# require 'zip/zip'
|
|
#
|
|
# Zip::ZipFile.open("my.zip", Zip::ZipFile::CREATE) {
|
|
# |zipfile|
|
|
# zipfile.get_output_stream("first.txt") { |f| f.puts "Hello from ZipFile" }
|
|
# zipfile.mkdir("a_dir")
|
|
# }
|
|
#
|
|
# The next example reopens <code>my.zip</code> writes the contents of
|
|
# <code>first.txt</code> to standard out and deletes the entry from
|
|
# the archive.
|
|
#
|
|
# require 'zip/zip'
|
|
#
|
|
# Zip::ZipFile.open("my.zip", Zip::ZipFile::CREATE) {
|
|
# |zipfile|
|
|
# puts zipfile.read("first.txt")
|
|
# zipfile.remove("first.txt")
|
|
# }
|
|
#
|
|
# ZipFileSystem offers an alternative API that emulates ruby's
|
|
# interface for accessing the filesystem, ie. the File and Dir classes.
|
|
|
|
class ZipFile < ZipCentralDirectory
|
|
|
|
CREATE = 1
|
|
|
|
attr_reader :name
|
|
|
|
# default -> false
|
|
attr_accessor :restore_ownership
|
|
# default -> false
|
|
attr_accessor :restore_permissions
|
|
# default -> true
|
|
attr_accessor :restore_times
|
|
|
|
# Opens a zip archive. Pass true as the second parameter to create
|
|
# a new archive if it doesn't exist already.
|
|
def initialize(fileName, create = nil)
|
|
super()
|
|
@name = fileName
|
|
@comment = ""
|
|
if (File.exists?(fileName))
|
|
File.open(name, "rb") { |f| read_from_stream(f) }
|
|
elsif (create)
|
|
@entrySet = ZipEntrySet.new
|
|
else
|
|
raise ZipError, "File #{fileName} not found"
|
|
end
|
|
@create = create
|
|
@storedEntries = @entrySet.dup
|
|
|
|
@restore_ownership = false
|
|
@restore_permissions = false
|
|
@restore_times = true
|
|
end
|
|
|
|
# Same as #new. If a block is passed the ZipFile object is passed
|
|
# to the block and is automatically closed afterwards just as with
|
|
# ruby's builtin File.open method.
|
|
def ZipFile.open(fileName, create = nil)
|
|
zf = ZipFile.new(fileName, create)
|
|
if block_given?
|
|
begin
|
|
yield zf
|
|
ensure
|
|
zf.close
|
|
end
|
|
else
|
|
zf
|
|
end
|
|
end
|
|
|
|
# Returns the zip files comment, if it has one
|
|
attr_accessor :comment
|
|
|
|
# Iterates over the contents of the ZipFile. This is more efficient
|
|
# than using a ZipInputStream since this methods simply iterates
|
|
# through the entries in the central directory structure in the archive
|
|
# whereas ZipInputStream jumps through the entire archive accessing the
|
|
# local entry headers (which contain the same information as the
|
|
# central directory).
|
|
def ZipFile.foreach(aZipFileName, &block)
|
|
ZipFile.open(aZipFileName) {
|
|
|zipFile|
|
|
zipFile.each(&block)
|
|
}
|
|
end
|
|
|
|
# Returns an input stream to the specified entry. If a block is passed
|
|
# the stream object is passed to the block and the stream is automatically
|
|
# closed afterwards just as with ruby's builtin File.open method.
|
|
def get_input_stream(entry, &aProc)
|
|
get_entry(entry).get_input_stream(&aProc)
|
|
end
|
|
|
|
# Returns an output stream to the specified entry. If a block is passed
|
|
# the stream object is passed to the block and the stream is automatically
|
|
# closed afterwards just as with ruby's builtin File.open method.
|
|
def get_output_stream(entry, &aProc)
|
|
newEntry = entry.kind_of?(ZipEntry) ? entry : ZipEntry.new(@name, entry.to_s)
|
|
if newEntry.directory?
|
|
raise ArgumentError,
|
|
"cannot open stream to directory entry - '#{newEntry}'"
|
|
end
|
|
zipStreamableEntry = ZipStreamableStream.new(newEntry)
|
|
@entrySet << zipStreamableEntry
|
|
zipStreamableEntry.get_output_stream(&aProc)
|
|
end
|
|
|
|
# Returns the name of the zip archive
|
|
def to_s
|
|
@name
|
|
end
|
|
|
|
# Returns a string containing the contents of the specified entry
|
|
def read(entry)
|
|
get_input_stream(entry) { |is| is.read }
|
|
end
|
|
|
|
# Convenience method for adding the contents of a file to the archive
|
|
def add(entry, srcPath, &continueOnExistsProc)
|
|
continueOnExistsProc ||= proc { false }
|
|
check_entry_exists(entry, continueOnExistsProc, "add")
|
|
newEntry = entry.kind_of?(ZipEntry) ? entry : ZipEntry.new(@name, entry.to_s)
|
|
newEntry.gather_fileinfo_from_srcpath(srcPath)
|
|
@entrySet << newEntry
|
|
end
|
|
|
|
# Removes the specified entry.
|
|
def remove(entry)
|
|
@entrySet.delete(get_entry(entry))
|
|
end
|
|
|
|
# Renames the specified entry.
|
|
def rename(entry, newName, &continueOnExistsProc)
|
|
foundEntry = get_entry(entry)
|
|
check_entry_exists(newName, continueOnExistsProc, "rename")
|
|
foundEntry.name=newName
|
|
end
|
|
|
|
# Replaces the specified entry with the contents of srcPath (from
|
|
# the file system).
|
|
def replace(entry, srcPath)
|
|
check_file(srcPath)
|
|
add(remove(entry), srcPath)
|
|
end
|
|
|
|
# Extracts entry to file destPath.
|
|
def extract(entry, destPath, &onExistsProc)
|
|
onExistsProc ||= proc { false }
|
|
foundEntry = get_entry(entry)
|
|
foundEntry.extract(destPath, &onExistsProc)
|
|
end
|
|
|
|
# Commits changes that has been made since the previous commit to
|
|
# the zip archive.
|
|
def commit
|
|
return if ! commit_required?
|
|
on_success_replace(name) {
|
|
|tmpFile|
|
|
ZipOutputStream.open(tmpFile) {
|
|
|zos|
|
|
|
|
@entrySet.each { |e| e.write_to_zip_output_stream(zos) }
|
|
zos.comment = comment
|
|
}
|
|
true
|
|
}
|
|
initialize(name)
|
|
end
|
|
|
|
# Closes the zip file committing any changes that has been made.
|
|
def close
|
|
commit
|
|
end
|
|
|
|
# Returns true if any changes has been made to this archive since
|
|
# the previous commit
|
|
def commit_required?
|
|
return @entrySet != @storedEntries || @create == ZipFile::CREATE
|
|
end
|
|
|
|
# Searches for entry with the specified name. Returns nil if
|
|
# no entry is found. See also get_entry
|
|
def find_entry(entry)
|
|
@entrySet.detect {
|
|
|e|
|
|
e.name.sub(/\/$/, "") == entry.to_s.sub(/\/$/, "")
|
|
}
|
|
end
|
|
|
|
# Searches for an entry just as find_entry, but throws Errno::ENOENT
|
|
# if no entry is found.
|
|
def get_entry(entry)
|
|
selectedEntry = find_entry(entry)
|
|
unless selectedEntry
|
|
raise Errno::ENOENT, entry
|
|
end
|
|
selectedEntry.restore_ownership = @restore_ownership
|
|
selectedEntry.restore_permissions = @restore_permissions
|
|
selectedEntry.restore_times = @restore_times
|
|
|
|
return selectedEntry
|
|
end
|
|
|
|
# Creates a directory
|
|
def mkdir(entryName, permissionInt = 0755)
|
|
if find_entry(entryName)
|
|
raise Errno::EEXIST, "File exists - #{entryName}"
|
|
end
|
|
@entrySet << ZipStreamableDirectory.new(@name, entryName.to_s.ensure_end("/"), nil, permissionInt)
|
|
end
|
|
|
|
private
|
|
|
|
def is_directory(newEntry, srcPath)
|
|
srcPathIsDirectory = File.directory?(srcPath)
|
|
if newEntry.is_directory && ! srcPathIsDirectory
|
|
raise ArgumentError,
|
|
"entry name '#{newEntry}' indicates directory entry, but "+
|
|
"'#{srcPath}' is not a directory"
|
|
elsif ! newEntry.is_directory && srcPathIsDirectory
|
|
newEntry.name += "/"
|
|
end
|
|
return newEntry.is_directory && srcPathIsDirectory
|
|
end
|
|
|
|
def check_entry_exists(entryName, continueOnExistsProc, procedureName)
|
|
continueOnExistsProc ||= proc { false }
|
|
if @entrySet.detect { |e| e.name == entryName }
|
|
if continueOnExistsProc.call
|
|
remove get_entry(entryName)
|
|
else
|
|
raise ZipEntryExistsError,
|
|
procedureName+" failed. Entry #{entryName} already exists"
|
|
end
|
|
end
|
|
end
|
|
|
|
def check_file(path)
|
|
unless File.readable? path
|
|
raise Errno::ENOENT, path
|
|
end
|
|
end
|
|
|
|
def on_success_replace(aFilename)
|
|
tmpfile = get_tempfile
|
|
tmpFilename = tmpfile.path
|
|
tmpfile.close
|
|
if yield tmpFilename
|
|
File.move(tmpFilename, name)
|
|
end
|
|
end
|
|
|
|
def get_tempfile
|
|
tempFile = Tempfile.new(File.basename(name), File.dirname(name))
|
|
tempFile.binmode
|
|
tempFile
|
|
end
|
|
|
|
end
|
|
|
|
class ZipStreamableDirectory < ZipEntry
|
|
def initialize(zipfile, entry, srcPath = nil, permissionInt = nil)
|
|
super(zipfile, entry)
|
|
|
|
@ftype = :directory
|
|
entry.get_extra_attributes_from_path(srcPath) if (srcPath)
|
|
@unix_perms = permissionInt if (permissionInt)
|
|
end
|
|
end
|
|
|
|
class ZipStreamableStream < DelegateClass(ZipEntry) #nodoc:all
|
|
def initialize(entry)
|
|
super(entry)
|
|
@tempFile = Tempfile.new(File.basename(name), File.dirname(zipfile))
|
|
@tempFile.binmode
|
|
end
|
|
|
|
def get_output_stream
|
|
if block_given?
|
|
begin
|
|
yield(@tempFile)
|
|
ensure
|
|
@tempFile.close
|
|
end
|
|
else
|
|
@tempFile
|
|
end
|
|
end
|
|
|
|
def get_input_stream
|
|
if ! @tempFile.closed?
|
|
raise StandardError, "cannot open entry for reading while its open for writing - #{name}"
|
|
end
|
|
@tempFile.open # reopens tempfile from top
|
|
@tempFile.binmode
|
|
if block_given?
|
|
begin
|
|
yield(@tempFile)
|
|
ensure
|
|
@tempFile.close
|
|
end
|
|
else
|
|
@tempFile
|
|
end
|
|
end
|
|
|
|
def write_to_zip_output_stream(aZipOutputStream)
|
|
aZipOutputStream.put_next_entry(self)
|
|
get_input_stream { |is| IOExtras.copy_stream(aZipOutputStream, is) }
|
|
end
|
|
end
|
|
|
|
class ZipExtraField < Hash
|
|
ID_MAP = {}
|
|
|
|
# Meta class for extra fields
|
|
class Generic
|
|
def self.register_map
|
|
if self.const_defined?(:HEADER_ID)
|
|
ID_MAP[self.const_get(:HEADER_ID)] = self
|
|
end
|
|
end
|
|
|
|
def self.name
|
|
self.to_s.split("::")[-1]
|
|
end
|
|
|
|
# return field [size, content] or false
|
|
def initial_parse(binstr)
|
|
if ! binstr
|
|
# If nil, start with empty.
|
|
return false
|
|
elsif binstr[0,2] != self.class.const_get(:HEADER_ID)
|
|
$stderr.puts "Warning: weired extra feild header ID. skip parsing"
|
|
return false
|
|
end
|
|
[binstr[2,2].unpack("v")[0], binstr[4..-1]]
|
|
end
|
|
|
|
def ==(other)
|
|
self.class != other.class and return false
|
|
each { |k, v|
|
|
v != other[k] and return false
|
|
}
|
|
true
|
|
end
|
|
|
|
def to_local_bin
|
|
s = pack_for_local
|
|
self.class.const_get(:HEADER_ID) + [s.length].pack("v") + s
|
|
end
|
|
|
|
def to_c_dir_bin
|
|
s = pack_for_c_dir
|
|
self.class.const_get(:HEADER_ID) + [s.length].pack("v") + s
|
|
end
|
|
end
|
|
|
|
# Info-ZIP Additional timestamp field
|
|
class UniversalTime < Generic
|
|
HEADER_ID = "UT"
|
|
register_map
|
|
|
|
def initialize(binstr = nil)
|
|
@ctime = nil
|
|
@mtime = nil
|
|
@atime = nil
|
|
@flag = nil
|
|
binstr and merge(binstr)
|
|
end
|
|
attr_accessor :atime, :ctime, :mtime, :flag
|
|
|
|
def merge(binstr)
|
|
binstr == "" and return
|
|
size, content = initial_parse(binstr)
|
|
size or return
|
|
@flag, mtime, atime, ctime = content.unpack("CVVV")
|
|
mtime and @mtime ||= Time.at(mtime)
|
|
atime and @atime ||= Time.at(atime)
|
|
ctime and @ctime ||= Time.at(ctime)
|
|
end
|
|
|
|
def ==(other)
|
|
@mtime == other.mtime &&
|
|
@atime == other.atime &&
|
|
@ctime == other.ctime
|
|
end
|
|
|
|
def pack_for_local
|
|
s = [@flag].pack("C")
|
|
@flag & 1 != 0 and s << [@mtime.to_i].pack("V")
|
|
@flag & 2 != 0 and s << [@atime.to_i].pack("V")
|
|
@flag & 4 != 0 and s << [@ctime.to_i].pack("V")
|
|
s
|
|
end
|
|
|
|
def pack_for_c_dir
|
|
s = [@flag].pack("C")
|
|
@flag & 1 == 1 and s << [@mtime.to_i].pack("V")
|
|
s
|
|
end
|
|
end
|
|
|
|
# Info-ZIP Extra for UNIX uid/gid
|
|
class IUnix < Generic
|
|
HEADER_ID = "Ux"
|
|
register_map
|
|
|
|
def initialize(binstr = nil)
|
|
@uid = 0
|
|
@gid = 0
|
|
binstr and merge(binstr)
|
|
end
|
|
attr_accessor :uid, :gid
|
|
|
|
def merge(binstr)
|
|
binstr == "" and return
|
|
size, content = initial_parse(binstr)
|
|
# size: 0 for central direcotry. 4 for local header
|
|
return if(! size || size == 0)
|
|
uid, gid = content.unpack("vv")
|
|
@uid ||= uid
|
|
@gid ||= gid
|
|
end
|
|
|
|
def ==(other)
|
|
@uid == other.uid &&
|
|
@gid == other.gid
|
|
end
|
|
|
|
def pack_for_local
|
|
[@uid, @gid].pack("vv")
|
|
end
|
|
|
|
def pack_for_c_dir
|
|
""
|
|
end
|
|
end
|
|
|
|
## start main of ZipExtraField < Hash
|
|
def initialize(binstr = nil)
|
|
binstr and merge(binstr)
|
|
end
|
|
|
|
def merge(binstr)
|
|
binstr == "" and return
|
|
i = 0
|
|
while i < binstr.length
|
|
id = binstr[i,2]
|
|
len = binstr[i+2,2].to_s.unpack("v")[0]
|
|
if id && ID_MAP.member?(id)
|
|
field_name = ID_MAP[id].name
|
|
if self.member?(field_name)
|
|
self[field_name].mergea(binstr[i, len+4])
|
|
else
|
|
field_obj = ID_MAP[id].new(binstr[i, len+4])
|
|
self[field_name] = field_obj
|
|
end
|
|
elsif id
|
|
unless self["Unknown"]
|
|
s = ""
|
|
class << s
|
|
alias_method :to_c_dir_bin, :to_s
|
|
alias_method :to_local_bin, :to_s
|
|
end
|
|
self["Unknown"] = s
|
|
end
|
|
if ! len || len+4 > binstr[i..-1].length
|
|
self["Unknown"] << binstr[i..-1]
|
|
break;
|
|
end
|
|
self["Unknown"] << binstr[i, len+4]
|
|
end
|
|
i += len+4
|
|
end
|
|
end
|
|
|
|
def create(name)
|
|
field_class = nil
|
|
ID_MAP.each { |id, klass|
|
|
if klass.name == name
|
|
field_class = klass
|
|
break
|
|
end
|
|
}
|
|
if ! field_class
|
|
raise ZipError, "Unknown extra field '#{name}'"
|
|
end
|
|
self[name] = field_class.new()
|
|
end
|
|
|
|
def to_local_bin
|
|
s = ""
|
|
each { |k, v|
|
|
s << v.to_local_bin
|
|
}
|
|
s
|
|
end
|
|
alias :to_s :to_local_bin
|
|
|
|
def to_c_dir_bin
|
|
s = ""
|
|
each { |k, v|
|
|
s << v.to_c_dir_bin
|
|
}
|
|
s
|
|
end
|
|
|
|
def c_dir_length
|
|
to_c_dir_bin.length
|
|
end
|
|
def local_length
|
|
to_local_bin.length
|
|
end
|
|
alias :c_dir_size :c_dir_length
|
|
alias :local_size :local_length
|
|
alias :length :local_length
|
|
alias :size :local_length
|
|
end # end ZipExtraField
|
|
|
|
end # Zip namespace module
|
|
|
|
|
|
|
|
# Copyright (C) 2002, 2003 Thomas Sondergaard
|
|
# rubyzip is free software; you can redistribute it and/or
|
|
# modify it under the terms of the ruby license.
|