get '/surf/?' do
  params.delete 'tag' if params[:tag].nil? || params[:tag].strip.empty?
  site_dataset = browse_sites_dataset
  site_dataset = site_dataset.paginate @current_page, 1
  @page_count = site_dataset.page_count || 1
  @site = site_dataset.first
  redirect "/browse?#{Rack::Utils.build_query params}" if @site.nil?
  erb :'surf', layout: false
end

get '/surf/:username' do |username|
  @site = Site.select(:id, :username, :title, :domain, :views, :stripe_customer_id).where(username: username).first
  not_found if @site.nil?
  @title = @site.title
  not_found if @site.nil?
  erb :'surf', layout: false
end

def surf_proxy
  username = request.host.match /^(\w+)/i
  resp = RestClient.get "http://#{username}.neocities.org#{request.path}"
  content_type resp.headers[:content_type]

  if content_type.match(/^text\/html/)
    body = resp.body+erb(:'surf/_surf_iframe_injection', layout: false)
  else
    body = resp.body
  end

  halt body
end

def surf_proxy_uri(username)
  $surf_proxy_uri ||= Addressable::URI.parse $config['surf_proxy_uri']
  new_uri = $surf_proxy_uri.dup
  new_uri.host = "#{username}.#{new_uri.host}"
  new_uri.to_s
end

=begin
get %r{\/surf\/proxy\/([\w-]+)\/(.+)|\/surf\/proxy\/([\w-]+)\/?} do
  captures = params[:captures].compact
  username = captures.first
  path = captures.length == 2 ? captures.last : ''

  site = Site.where(username: username).select(:id, :username, :title, :domain).first
  not_found if site.nil?

  resp = RestClient.get "http://#{site.username}.neocities.org/#{path}"

  content_type resp.headers[:content_type]
  site_body = resp.body

  unless path == '/' || path == '' || path.match(/\.html?$/i)
    return site_body
  end

  attributes = ['src', 'href', 'background']

  new_site_body = site_body.dup

  site_body.gsub(/(?<name>\b\w+\b)\s*=\s*(?<value>"[^"]*"|'[^']*'|[^"'<>\s]+)/i) do |ele|
    attributes.each do |attr|
      if ele.match /#{attr} ?=/
        ele_match = ele.match(/\"(.+)\"|\'(.+)\'/)
        next if ele_match.nil? || ele_match.captures.nil?
        uri = ele_match.captures.first

        new_ele = nil

        if uri.match(/^\w+:\/\/|^\/\//i)
          if ele.match(/^href/i)
            new_ele = ele + ' target="_blank"'
          else
            new_ele = ele
          end
        else
          new_ele = ele.gsub(uri, "#{$config['surf_proxy_uri']}/surf/proxy/#{site.username}/#{uri}")
        end

        new_site_body.gsub! ele, new_ele if new_ele
      end
    end
  end

  new_site_body
end
=end