Class: ValidateWebsite::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/validate_website/validator.rb

Constant Summary collapse

XHTML_PATH = 
File.join(File.dirname(__FILE__), '..', '..', 'data', 'schemas')

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(original_doc, body, opts = {}) ⇒ Validator

Returns a new instance of Validator.

Parameters:

  • original_doc (Nokogiri::HTML::Document)
  • The (String) —

    raw HTTP response body of the page



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# File 'lib/validate_website/validator.rb', line 14

def initialize(original_doc, body, opts={})
  @original_doc = original_doc
  @body = body
  @options = opts
  @dtd = @original_doc.internal_subset
  init_namespace(@dtd)
  @errors = []

  if @errors.empty?
    if @dtd_uri && @body.match(@dtd_uri.to_s)
      document = @body.sub(@dtd_uri.to_s, @namespace + '.dtd')
    else
      document = @body
    end
    @doc = Dir.chdir(XHTML_PATH) do
      Nokogiri::XML(document) { |cfg|
        cfg.noent.dtdload.dtdvalid
      }
    end

    # http://www.w3.org/TR/xhtml1-schema/
    @xsd = Dir.chdir(XHTML_PATH) do
      if @namespace && File.exists?(@namespace + '.xsd')
        Nokogiri::XML::Schema(File.read(@namespace + '.xsd'))
      end
    end

    if @xsd
      # have the xsd so use it
      @errors = @xsd.validate(@doc)
    elsif document =~ /^\<!DOCTYPE html\>/i
      # TODO: use a local Java, Python parser... write a Ruby HTML5 parser ?
      require 'net/http'
      require 'multipart_body'
      url = URI.parse('http://validator.nu/')
      multipart = MultipartBody.new(:content => document)
      http = Net::HTTP.new(url.host)
      headers = {
        'Content-Type' => "multipart/form-data; boundary=#{multipart.boundary}",
        'Content-Length' => multipart.to_s.bytesize.to_s,
      }
      res = http.start {|con| con.post(url.path, multipart.to_s, headers) }
      @errors = Nokogiri::XML.parse(res.body).css('ol li.error').map(&:content)
    else
      # dont have xsd fall back to dtd
      @doc = Dir.chdir(XHTML_PATH) do
        Nokogiri::HTML.parse(document)
      end
      @errors = @doc.errors
    end
  end

rescue Nokogiri::XML::SyntaxError => e
  # http://nokogiri.org/tutorials/ensuring_well_formed_markup.html
  @errors << e
end

Instance Attribute Details

#body ⇒ Object (readonly)

Returns the value of attribute body.



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# File 'lib/validate_website/validator.rb', line 9

def body
  @body
end

#doc ⇒ Object (readonly)

Returns the value of attribute doc.



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# File 'lib/validate_website/validator.rb', line 9

def doc
  @doc
end

#dtd ⇒ Object (readonly)

Returns the value of attribute dtd.



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# File 'lib/validate_website/validator.rb', line 9

def dtd
  @dtd
end

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/validate_website/validator.rb', line 9

def errors
  @errors
end

#namespace ⇒ Object (readonly)

Returns the value of attribute namespace.



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# File 'lib/validate_website/validator.rb', line 9

def namespace
  @namespace
end

#original_doc ⇒ Object (readonly)

Returns the value of attribute original_doc.



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# File 'lib/validate_website/validator.rb', line 9

def original_doc
  @original_doc
end

#xsd ⇒ Object (readonly)

Returns the value of attribute xsd.



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# File 'lib/validate_website/validator.rb', line 9

def xsd
  @xsd
end

Instance Method Details

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validate_website/validator.rb', line 73

def valid?
  errors.length == 0
end