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# CodeRay dynamic highlighter
#
# Usage: start this and your browser.
#
# Go to http://localhost:49374/?<path to the file>
# (mnemonic: 49374 = Four-Nine-Three-Seven-Four = For No Token Shall Fall)
# and you should get the highlighted version.
require 'webrick'
require 'pathname'
class << File
alias dir? directory?
end
require 'erb'
include ERB::Util
def url_decode s
s.to_s.gsub(/%([0-9a-f]{2})/i) { [$1.hex].pack 'C' }
end
class String
def to_link name = File.basename(self)
"<a href=\"?path=#{url_encode self}\">#{name}</a>"
end
end
require 'coderay'
class CodeRayServlet < WEBrick::HTTPServlet::AbstractServlet
STYLE = 'style="font-family: sans-serif; color: navy;"'
BANNER = '<p><img src="http://rd.cYcnus.de/coderay/coderay-banner" style="border: 0" alt="HIghlighted by CodeRay"/></p>'
def do_GET req, res
q = req.query_string || ''
args = Hash[*q.scan(/(.*?)=(.*?)(?:&|$)/).flatten].each_value { |v| v.replace url_decode(v) }
path = args.fetch 'path', '.'
backlinks = '<p>current path: %s<br />' % html_escape(path) +
(Pathname.new(path) + '..').cleanpath.to_s.to_link('up') + ' - ' +
'.'.to_link('current') + '</p>'
res.body =
if File.dir? path
path = Pathname.new(path).cleanpath.to_s
dirs, files = Dir[File.join(path, '*')].sort.partition { |p| File.dir? p }
page = "<html><head></head><body #{STYLE}>"
page << backlinks
page << '<dl>'
page << "<dt>Directories</dt>\n" + dirs.map do |p|
"<dd>#{p.to_link}</dd>\n"
end.join << "\n"
page << "<dt>Files</dt>\n" + files.map do |p|
"<dd>#{p.to_link}</dd>\n"
end.join << "\n"
page << "</dl>\n"
page << "#{BANNER}</body></html>"
elsif File.exist? path
div = CodeRay.scan_file(path).html :tab_width => 8, :wrap => :div
div.replace <<-DIV
<div #{STYLE}>
#{backlinks}
#{div}
</div>
#{BANNER}
DIV
div.page
end
res['Content-Type'] = 'text/html'
end
end
# this is taken by "qip_msgd" - I don't know that.
module CodeRay
PORT = 0xC0DE / 20
end
server = WEBrick::HTTPServer.new :Port => CodeRay::PORT
server.mount '/', CodeRayServlet
server.mount_proc '/version' do |req, res|
res.body = 'CodeRay::Version = ' + CodeRay::Version
res['Content-Type'] = "text/plain"
end
trap("INT") { server.shutdown }
server.start
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