Simple Ruby Wiki

wiki.rb

require 'sinatra'
require 'redcloth'

def render_html(page, title, action, content)
	out = File.open('template.html', "r").read	
	title = '' unless title
	if action == 'edit'
		out.gsub!('{view}', '#view { display: none; }')
		out.gsub!('{edit}', '')
	else
		nav = page == 'MainPage' ? '<span class=g>Home</span>' : "<a href=/>Home</a> &#183; <span class=g>#{page}</span>"
		out.gsub!('{view}', '')
		out.gsub!('{edit}', '#edit { display: none; }')
		out.gsub!('{nav}', nav)
	end
	out.gsub!('{title}', title)
	out.gsub!('{content}', content)
	out.gsub!('{page}', page)
	out
end

get '/' do
	redirect '/MainPage'
end

post '/:page' do
	page = params[:page].tr('. ', '')
	File.open(page, "w") do |f|
		f.write params[:content]
	end
	redirect "/#{page}"
end

get '/:page/?:action?' do
	page = params[:page].tr('. ', '')
	action = params[:action]
	if File.exists?(page)
		content = File.open(page, "r").read
		unless action == 'edit'
			title, content = content.split("\n", 2)
			content = '' unless content
			content = RedCloth.new(content).to_html
			content.gsub!(/\[\[(.+?)\]\]/u, '<a href="/\1">\1</a>')
		end
	else
		content = "Describe #{page} here."
		title = page
	end
	render_html page, title, action, content
end