module RichText
def self.new(format, text)
case format
- when "html"; HTML.new(text || "")
- when "markdown"; Markdown.new(text || "")
- else; nil
+ when "html" then HTML.new(text || "")
+ when "markdown" then Markdown.new(text || "")
+ when "text" then Text.new(text || "")
+ end
+ end
+
+ class SimpleFormat
+ include ActionView::Helpers::TextHelper
+ include ActionView::Helpers::OutputSafetyHelper
+
+ def sanitize(text)
+ Sanitize.clean(text, Sanitize::Config::OSM).html_safe
end
end
class Base < String
+ include ActionView::Helpers::TagHelper
+
def spam_score
link_count = 0
link_size = 0
link_proportion = 0
end
- return [link_proportion - 0.2, 0.0].max * 200 + link_count * 20
+ [link_proportion - 0.2, 0.0].max * 200 + link_count * 40
+ end
+
+ protected
+
+ def simple_format(text)
+ SimpleFormat.new.simple_format(text)
+ end
+
+ def linkify(text)
+ if text.html_safe?
+ Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow")).html_safe
+ else
+ Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow"))
+ end
end
end
class HTML < Base
- include ActionView::Helpers::TextHelper
- include ActionView::Helpers::TagHelper
-
def to_html
linkify(sanitize(simple_format(self)))
end
def to_text
- self
+ to_s
end
- private
+ private
def sanitize(text)
Sanitize.clean(text, Sanitize::Config::OSM).html_safe
end
-
- def linkify(text)
- if text.html_safe?
- Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow")).html_safe
- else
- Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow"))
- end
- end
end
class Markdown < Base
def to_html
- html_parser.render(self).html_safe
+ Markdown.html_parser.render(self).html_safe
end
def to_text
- self
+ to_s
+ end
+
+ def self.html_renderer
+ @html_renderer ||= Renderer.new(:filter_html => true, :safe_links_only => true)
+ end
+
+ def self.html_parser
+ @html_parser ||= Redcarpet::Markdown.new(html_renderer, :no_intra_emphasis => true, :autolink => true, :space_after_headers => true)
end
- private
+ class Renderer < Redcarpet::Render::XHTML
+ def link(link, _title, alt_text)
+ "<a rel=\"nofollow\" href=\"#{link}\">#{alt_text}</a>"
+ end
- def html_parser
- @@html_renderer ||= Redcarpet::Render::XHTML.new({
- :filter_html => true, :safe_links_only => true
- })
- @@html_parser ||= Redcarpet::Markdown.new(@@html_renderer, {
- :no_intra_emphasis => true, :autolink => true, :space_after_headers => true
- })
+ def autolink(link, link_type)
+ if link_type == :email
+ "<a rel=\"nofollow\" href=\"mailto:#{link}\">#{link}</a>"
+ else
+ "<a rel=\"nofollow\" href=\"#{link}\">#{link}</a>"
+ end
+ end
+ end
+ end
+
+ class Text < Base
+ def to_html
+ linkify(simple_format(ERB::Util.html_escape(self)))
+ end
+
+ def to_text
+ to_s
end
end
end