require 'current_user' require 'canonical_url' require_dependency 'guardian' require_dependency 'unread' require_dependency 'age_words' require_dependency 'configurable_urls' module ApplicationHelper include CurrentUser include CanonicalURL::Helpers include ConfigurableUrls def discourse_csrf_tags # anon can not have a CSRF token cause these are all pages # that may be cached, causing a mismatch between session CSRF # and CSRF on page and horrible impossible to debug login issues if current_user csrf_meta_tags end end def html_classes "#{mobile_view? ? 'mobile-view' : 'desktop-view'} #{mobile_device? ? 'mobile-device' : 'not-mobile-device'}" end def escape_unicode(javascript) if javascript javascript = javascript.dup.force_encoding("utf-8") unless javascript.valid_encoding? # work around bust string with a double conversion javascript.encode!("utf-16","utf-8",:invalid => :replace) javascript.encode!("utf-8","utf-16") end javascript.gsub!(/\342\200\250/u, '
') javascript.gsub!(/(<\/)/u, '\u003C/') javascript.html_safe else '' end end def with_format(format, &block) old_formats = formats self.formats = [format] block.call self.formats = old_formats nil end def age_words(secs) AgeWords.age_words(secs) end def guardian @guardian ||= Guardian.new(current_user) end def mini_profiler_enabled? defined?(Rack::MiniProfiler) && admin? end def admin? current_user.try(:admin?) end def moderator? current_user.try(:moderator?) end def staff? current_user.try(:staff?) end # Creates open graph and twitter card meta data def crawlable_meta_data(opts=nil) opts ||= {} opts[:image] ||= "#{Discourse.base_url}#{SiteSetting.logo_small_url}" opts[:url] ||= "#{Discourse.base_url}#{request.fullpath}" # Add opengraph tags result = tag(:meta, property: 'og:site_name', content: SiteSetting.title) << "\n" result << tag(:meta, name: 'twitter:card', content: "summary") [:image, :url, :title, :description, 'image:width', 'image:height'].each do |property| if opts[property].present? escape = (property != :image) result << tag(:meta, {property: "og:#{property}", content: opts[property]}, nil, escape) << "\n" result << tag(:meta, {name: "twitter:#{property}", content: opts[property]}, nil, escape) << "\n" end end # Add workaround tag for old crawlers which ignores