Class: HTML::Proofer::Checkable

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/html/proofer/checkable.rb

Overview

Represents the superclass from which all checks derive.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utils

create_nokogiri, swap

Constructor Details

#initialize(obj, check) ⇒ Checkable

Returns a new instance of Checkable.



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# File 'lib/html/proofer/checkable.rb', line 11

def initialize(obj, check)
  obj.attributes.each_pair do |attribute, value|
    instance_variable_set("@#{attribute.tr('-:', '_')}".to_sym, value.value)
  end

  @text = obj.content
  @check = check
  @checked_paths = {}
  @type = self.class.name
  @line = obj.line

  if @href && @check.options[:href_swap]
    @href = swap(@href, @check.options[:href_swap])
  end

  # fix up missing protocols
  @href.insert 0, 'http:' if @href =~ %r{^//}
  @src.insert 0, 'http:' if @src =~ %r{^//}
end

Instance Attribute Details

#line ⇒ Object (readonly)

Returns the value of attribute line.



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# File 'lib/html/proofer/checkable.rb', line 9

def line
  @line
end

Instance Method Details

#absolute_path ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 131

def absolute_path
  path = file_path || @check.path
  File.expand_path path, Dir.pwd
end

#exists? ⇒ Boolean

checks if a file exists relative to the current pwd

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 126

def exists?
  return @checked_paths[absolute_path] if @checked_paths.key? absolute_path
  @checked_paths[absolute_path] = File.exist? absolute_path
end

#external? ⇒ Boolean

path is external to the file

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 93

def external?
  !internal?
end

#file_path ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 102

def file_path
  return if path.nil?

  if path =~ /^\// # path relative to root
    base = File.directory?(@check.src) ? @check.src : File.dirname(@check.src)
  elsif File.exist?(File.expand_path path, @check.src) # relative links, path is a file
    base = File.dirname @check.path
  elsif File.exist?(File.join(File.dirname(@check.path), path)) # relative links in nested dir, path is a file
    base = File.dirname @check.path
  else # relative link, path is a directory
    base = @check.path
  end

  file = File.join base, path

  # implicit index support
  if File.directory?(file) && !unslashed_directory?(file)
    file = File.join file, @check.options[:directory_index_file]
  end

  file
end

#follow_location? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 152

def follow_location?
  @check.typhoeus_opts && @check.typhoeus_opts[:followlocation]
end

#hash ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 49

def hash
  parts.fragment unless parts.nil?
end

#ignore? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 66

def ignore?
  return true if @data_proofer_ignore

  # ignore base64 encoded images
  if %w(ImageCheckable FaviconCheckable).include? @type
    return true if url.match(/^data:image/)
  end

  # ignore user defined URLs
  return true if ignores_pattern_check(@check.url_ignores)

  # ignore user defined hrefs
  if 'LinkCheckable' === @type
    return true if ignores_pattern_check(@check.href_ignores)
  end

  # ignore user defined alts
  if 'ImageCheckable' === @type
    return true if ignores_pattern_check(@check.alt_ignores)
  end
end

#ignore_empty_alt? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 88

def ignore_empty_alt?
  @check.empty_alt_ignore
end

#ignores_pattern_check(links) ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 136

def ignores_pattern_check(links)
  links.each do |ignore|
    if ignore.is_a? String
      return true if ignore == url
    elsif ignore.is_a? Regexp
      return true if ignore =~ url
    end
  end

  false
end

#internal? ⇒ Boolean

path is an anchor or a query

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 98

def internal?
  url.start_with? '#', '?'
end

#non_http_remote? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 62

def non_http_remote?
  !scheme.nil? && !remote?
end

#parts ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 39

def parts
  @parts ||= Addressable::URI.parse url
rescue URI::Error
  @parts = nil
end

#path ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 45

def path
  Addressable::URI.unencode parts.path unless parts.nil?
end

#remote? ⇒ Boolean

path is to an external server

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 58

def remote?
  %w( http https ).include? scheme
end

#scheme ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 53

def scheme
  parts.scheme unless parts.nil?
end

#unslashed_directory?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 148

def unslashed_directory?(file)
  File.directory?(file) && !file.end_with?(File::SEPARATOR) && !follow_location?
end

#url ⇒ Object 



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# File 'lib/html/proofer/checkable.rb', line 31

def url
  @src || @srcset || @href || ''
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/html/proofer/checkable.rb', line 35

def valid?
  !parts.nil?
end