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Filename : http.rb
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# = uri/http.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: http.rb 37472 2012-11-05 01:19:09Z zzak $
#
# See URI for general documentation
#

require 'uri/generic'

module URI

  #
  # The syntax of HTTP URIs is defined in RFC1738 section 3.3.
  #
  # Note that the Ruby URI library allows HTTP URLs containing usernames and
  # passwords. This is not legal as per the RFC, but used to be
  # supported in Internet Explorer 5 and 6, before the MS04-004 security
  # update. See <URL:http://support.microsoft.com/kb/834489>.
  #
  class HTTP < Generic
    # A Default port of 80 for URI::HTTP
    DEFAULT_PORT = 80

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

    #
    # == Description
    #
    # Create a new URI::HTTP object from components, with syntax checking.
    #
    # The components accepted are userinfo, host, port, path, query and
    # fragment.
    #
    # 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, query, fragment].
    #
    # Example:
    #
    #     newuri = URI::HTTP.build({:host => 'www.example.com',
    #       :path => '/foo/bar'})
    #
    #     newuri = URI::HTTP.build([nil, "www.example.com", nil, "/path",
    #       "query", 'fragment'])
    #
    # Currently, if passed userinfo components this method generates
    # invalid HTTP URIs as per RFC 1738.
    #
    def self.build(args)
      tmp = Util::make_components_hash(self, args)
      return super(tmp)
    end

    #
    # == Description
    #
    # Create a new URI::HTTP object from generic URI components as per
    # RFC 2396. No HTTP-specific syntax checking (as per RFC 1738) is
    # performed.
    #
    # Arguments are +scheme+, +userinfo+, +host+, +port+, +registry+, +path+,
    # +opaque+, +query+ and +fragment+, in that order.
    #
    # Example:
    #
    #     uri = URI::HTTP.new('http', nil, "www.example.com", nil, "/path",
    #       "query", 'fragment')
    #
    #
    # See also URI::Generic.new
    #
    def initialize(*arg)
      super(*arg)
    end

    #
    # == Description
    #
    # Returns the full path for an HTTP request, as required by Net::HTTP::Get.
    #
    # If the URI contains a query, the full path is URI#path + '?' + URI#query.
    # Otherwise, the path is simply URI#path.
    #
    def request_uri
      r = path_query
      if r && r[0] != ?/
        r = '/' + r
      end

      r
    end
  end

  @@schemes['HTTP'] = HTTP
end