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File Content: `ftp.rb`

# = uri/ftp.rb
#
# Author:: Akira Yamada <akira@ruby-lang.org>
# License:: You can redistribute it and/or modify it under the same term as Ruby.
# Revision:: $Id: ftp.rb 40202 2013-04-09 00:29:54Z hsbt $
#
# See URI for general documentation
#

require 'uri/generic'

module URI

  #
  # FTP URI syntax is defined by RFC1738 section 3.2.
  #
  # This class will be redesigned because of difference of implementations;
  # the structure of its path. draft-hoffman-ftp-uri-04 is a draft but it
  # is a good summary about the de facto spec.
  # http://tools.ietf.org/html/draft-hoffman-ftp-uri-04
  #
  class FTP < Generic
    # A Default port of 21 for URI::FTP
    DEFAULT_PORT = 21

    #
    # An Array of the available components for URI::FTP
    #
    COMPONENT = [
      :scheme,
      :userinfo, :host, :port,
      :path, :typecode
    ].freeze

    #
    # Typecode is "a", "i" or "d".
    #
    # * "a" indicates a text file (the FTP command was ASCII)
    # * "i" indicates a binary file (FTP command IMAGE)
    # * "d" indicates the contents of a directory should be displayed
    #
    TYPECODE = ['a', 'i', 'd'].freeze

    # Typecode prefix
    #  ';type='
    TYPECODE_PREFIX = ';type='.freeze

    def self.new2(user, password, host, port, path,
                  typecode = nil, arg_check = true) # :nodoc:
      # Do not use this method!  Not tested.  [Bug #7301]
      # This methods remains just for compatibility,
      # Keep it undocumented until the active maintainer is assigned.
      typecode = nil if typecode.size == 0
      if typecode && !TYPECODE.include?(typecode)
        raise ArgumentError,
          "bad typecode is specified: #{typecode}"
      end

      # do escape

      self.new('ftp',
               [user, password],
               host, port, nil,
               typecode ? path + TYPECODE_PREFIX + typecode : path,
               nil, nil, nil, arg_check)
    end

    #
    # == Description
    #
    # Creates a new URI::FTP object from components, with syntax checking.
    #
    # The components accepted are +userinfo+, +host+, +port+, +path+ and
    # +typecode+.
    #
    # The components should be provided either as an Array, or as a Hash
    # with keys formed by preceding the component names with a colon.
    #
    # If an Array is used, the components must be passed in the order
    # [userinfo, host, port, path, typecode]
    #
    # If the path supplied is absolute, it will be escaped in order to
    # make it absolute in the URI. Examples:
    #
    #     require 'uri'
    #
    #     uri = URI::FTP.build(['user:password', 'ftp.example.com', nil,
    #       '/path/file.> zip', 'i'])
    #     puts uri.to_s  ->  ftp://user:password@ftp.example.com/%2Fpath/file.zip;type=a
    #
    #     uri2 = URI::FTP.build({:host => 'ftp.example.com',
    #       :path => 'ruby/src'})
    #     puts uri2.to_s  ->  ftp://ftp.example.com/ruby/src
    #
    def self.build(args)

      # Fix the incoming path to be generic URL syntax
      # FTP path  ->  URL path
      # foo/bar       /foo/bar
      # /foo/bar      /%2Ffoo/bar
      #
      if args.kind_of?(Array)
        args[3] = '/' + args[3].sub(/^\//, '%2F')
      else
        args[:path] = '/' + args[:path].sub(/^\//, '%2F')
      end

      tmp = Util::make_components_hash(self, args)

      if tmp[:typecode]
        if tmp[:typecode].size == 1
          tmp[:typecode] = TYPECODE_PREFIX + tmp[:typecode]
        end
        tmp[:path] << tmp[:typecode]
      end

      return super(tmp)
    end

    #
    # == Description
    #
    # Creates a new URI::FTP object from generic URL components with no
    # syntax checking.
    #
    # Unlike build(), this method does not escape the path component as
    # required by RFC1738; instead it is treated as per RFC2396.
    #
    # Arguments are +scheme+, +userinfo+, +host+, +port+, +registry+, +path+,
    # +opaque+, +query+ and +fragment+, in that order.
    #
    def initialize(*arg)
      raise InvalidURIError unless arg[5]
      arg[5] = arg[5].sub(/^\//,'').sub(/^%2F/,'/')
      super(*arg)
      @typecode = nil
      tmp = @path.index(TYPECODE_PREFIX)
      if tmp
        typecode = @path[tmp + TYPECODE_PREFIX.size..-1]
        @path = @path[0..tmp - 1]

        if arg[-1]
          self.typecode = typecode
        else
          self.set_typecode(typecode)
        end
      end
    end

    # typecode accessor
    #
    # see URI::FTP::COMPONENT
    attr_reader :typecode

    # validates typecode +v+,
    # returns a +true+ or +false+ boolean
    #
    def check_typecode(v)
      if TYPECODE.include?(v)
        return true
      else
        raise InvalidComponentError,
          "bad typecode(expected #{TYPECODE.join(', ')}): #{v}"
      end
    end
    private :check_typecode

    # Private setter for the typecode +v+
    #
    # see also URI::FTP.typecode=
    #
    def set_typecode(v)
      @typecode = v
    end
    protected :set_typecode

    #
    # == Args
    #
    # +v+::
    #    String
    #
    # == Description
    #
    # public setter for the typecode +v+.
    # (with validation)
    #
    # see also URI::FTP.check_typecode
    #
    # == Usage
    #
    #   require 'uri'
    #
    #   uri = URI.parse("ftp://john@ftp.example.com/my_file.img")
    #   #=> #<URI::FTP:0x00000000923650 URL:ftp://john@ftp.example.com/my_file.img>
    #   uri.typecode = "i"
    #   # =>  "i"
    #   uri
    #   #=> #<URI::FTP:0x00000000923650 URL:ftp://john@ftp.example.com/my_file.img;type=i>
    #
    def typecode=(typecode)
      check_typecode(typecode)
      set_typecode(typecode)
      typecode
    end

    def merge(oth) # :nodoc:
      tmp = super(oth)
      if self != tmp
        tmp.set_typecode(oth.typecode)
      end

      return tmp
    end

    # Returns the path from an FTP URI.
    #
    # RFC 1738 specifically states that the path for an FTP URI does not
    # include the / which separates the URI path from the URI host. Example:
    #
    #     ftp://ftp.example.com/pub/ruby
    #
    # The above URI indicates that the client should connect to
    # ftp.example.com then cd pub/ruby from the initial login directory.
    #
    # If you want to cd to an absolute directory, you must include an
    # escaped / (%2F) in the path. Example:
    #
    #     ftp://ftp.example.com/%2Fpub/ruby
    #
    # This method will then return "/pub/ruby"
    #
    def path
      return @path.sub(/^\//,'').sub(/^%2F/,'/')
    end

    # Private setter for the path of the URI::FTP
    def set_path(v)
      super("/" + v.sub(/^\//, "%2F"))
    end
    protected :set_path

    # Returns a String representation of the URI::FTP
    def to_s
      save_path = nil
      if @typecode
        save_path = @path
        @path = @path + TYPECODE_PREFIX + @typecode
      end
      str = super
      if @typecode
        @path = save_path
      end

      return str
    end
  end
  @@schemes['FTP'] = FTP
end
Name	Size	Permission
common.rb	36871 bytes	0644
ftp.rb	6926 bytes	0644
generic.rb	39094 bytes	0644
http.rb	2857 bytes	0644
https.rb	581 bytes	0644
ldap.rb	5874 bytes	0644
ldaps.rb	470 bytes	0644
mailto.rb	7216 bytes	0644
File Content: ftp.rb

File Content: `ftp.rb`
