407 lines
11 KiB
Ruby
Executable file
407 lines
11 KiB
Ruby
Executable file
require 'application'
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require 'fileutils'
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require 'redcloth_for_tex'
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class WikiController < ApplicationController
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layout 'default', :except => [:rss_feed, :rss_with_headlines, :tex_web, :tex]
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before_filter :pre_process
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def index
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if @web_name
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redirect_show 'HomePage'
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elsif not @wiki.setup?
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redirect_to :action => 'new_system'
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elsif @wiki.webs.length == 1
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redirect_show 'HomePage', @wiki.webs.values.first.address
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else
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redirect_to :action => 'web_list'
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end
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end
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# Administrating the Instiki setup --------------------------------------------
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def create_system
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@wiki.setup(@params['password'], @params['web_name'], @params['web_address']) unless @wiki.setup?
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redirect_show('HomePage', @params['web_address'])
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end
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def create_web
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if @wiki.authenticate(@params['system_password'])
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@wiki.create_web(@params['name'], @params['address'])
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redirect_show('HomePage', @params['address'])
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else
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redirect_to :action => 'index'
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end
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end
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def new_system
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redirect_to(:action => 'index') if wiki.setup?
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# otherwise, to template
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end
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def new_web
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redirect_to :action => 'index' if wiki.system['password'].nil?
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# otherwise, to template
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end
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# Outside a single web --------------------------------------------------------
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def authenticate
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if password_check(@params['password'])
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redirect_show('HomePage')
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else
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redirect_to :action => 'login'
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end
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end
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def login
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# to template
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end
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def web_list
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@webs = wiki.webs.values.sort_by { |web| web.name }
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end
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# Within a single web ---------------------------------------------------------
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def authors
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@authors = @web.select.authors
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end
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def export_html
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export_pages_as_zip('html') { |page| @page = page; render_to_string 'wiki/print' }
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end
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def export_markup
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export_pages_as_zip(@web.markup) { |page| page.content }
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end
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def export_pdf
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file_name = "#{web.address}-tex-#{web.revised_on.strftime('%Y-%m-%d-%H-%M-%S')}"
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file_path = WikiService.storage_path + file_name
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export_web_to_tex "#{file_path}.tex" unless FileTest.exists? "#{file_path}.tex"
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convert_tex_to_pdf "#{file_path}.tex"
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send_export("#{file_name}.tex", "#{file_path}.tex")
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end
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def export_tex
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file_name = "#{web.address}-tex-#{web.revised_on.strftime('%Y-%m-%d-%H-%M-%S')}.tex"
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file_path = WikiService.storage_path + file_name
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export_web_to_tex(file_path) unless FileTest.exists?(file_path)
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send_export(file_name, file_path)
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end
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def feeds
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# to template
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end
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def list
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parse_category
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@pages_by_name = @pages_in_category.by_name
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@page_names_that_are_wanted = @pages_in_category.wanted_pages
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@pages_that_are_orphaned = @pages_in_category.orphaned_pages
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end
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def recently_revised
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parse_category
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@pages_by_revision = @pages_in_category.by_revision
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end
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def remove_orphaned_pages
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if wiki.authenticate(@params['system_password'])
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wiki.remove_orphaned_pages(@web_name)
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redirect_to :action => 'list'
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else
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redirect_show 'HomePage'
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end
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end
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def rss_with_content
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render_rss
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end
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def rss_with_headlines
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render_rss(hide_description = true)
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end
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def search
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@query = @params['query']
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@results = @web.select { |page| page.content =~ /#{@query}/i }.sort
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redirect_show(@results.first.name) if @results.length == 1
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end
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def update_web
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if wiki.authenticate(@params['system_password'])
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wiki.update_web(
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@web.address, @params['address'], @params['name'],
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@params['markup'].intern,
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@params['color'], @params['additional_style'],
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@params['safe_mode'] ? true : false,
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@params['password'].empty? ? nil : @params['password'],
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@params['published'] ? true : false,
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@params['brackets_only'] ? true : false,
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@params['count_pages'] ? true : false
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)
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redirect_show('HomePage', @params['address'])
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else
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redirect_show('HomePage')
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end
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end
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# Within a single page --------------------------------------------------------
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def cancel_edit
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@page.unlock
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redirect_show
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end
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def edit
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if @page.nil?
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redirect_to :action => 'index'
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elsif @page.locked?(Time.now) and not @params['break_lock']
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redirect_to :web => @web_name, :action => 'locked', :id => @page_name
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else
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@page.lock(Time.now, @author)
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end
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end
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def locked
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# to template
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end
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def new
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# to template
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end
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def pdf
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page = wiki.read_page(@web_name, @page_name)
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safe_page_name = @page.name.gsub(/\W/, '')
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file_name = "#{safe_page_name}-#{@web.address}-#{@page.created_at.strftime('%Y-%m-%d-%H-%M-%S')}"
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file_path = WikiService.storage_path + file_name
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export_page_to_tex(file_path + '.tex') unless FileTest.exists?(file_path + '.tex')
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# NB: this is _very_ slow
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convert_tex_to_pdf(file_path + '.tex')
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send_file(file_path + '.pdf')
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end
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def print
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# to template
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end
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def published
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if @web.published
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@page = wiki.read_page(@web_name, @page_name || 'HomePage')
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else
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redirect_show('HomePage')
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end
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end
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def revision
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get_page_and_revision
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end
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def rollback
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get_page_and_revision
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end
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def save
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redirect_to :action => 'index' if @page_name.nil?
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if @web.pages[@page_name]
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page = wiki.revise_page(
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@web_name, @page_name, @params['content'], Time.now,
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Author.new(@params['author'], remote_ip)
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)
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page.unlock
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else
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page = wiki.write_page(
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@web_name, @page_name, @params['content'], Time.now,
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Author.new(@params['author'], remote_ip)
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)
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end
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cookies['author'] = @params['author']
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redirect_show(@page_name)
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end
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def show
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if @page
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begin
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render_action 'page'
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# TODO this rescue should differentiate between errors due to rendering and errors in
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# the application itself (for application errors, it's better not to rescue the error at all)
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rescue => e
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logger.error e
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if in_a_web?
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redirect_to :web => @web_name, :action => 'edit',
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:action_suffix => "#{CGI.escape(@page_name)}?msg=#{CGI.escape(e.message)}"
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else
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raise e
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end
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end
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else
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redirect_to :web => @web_name, :action => 'new', :id => CGI.escape(@page_name)
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end
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end
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def tex
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@tex_content = RedClothForTex.new(@page.content).to_tex
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end
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private
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def authorized?
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@web.nil? ||
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@web.password.nil? ||
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cookies['web_address'] == @web.password ||
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password_check(@params['password'])
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end
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def check_authorization(action_name)
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if in_a_web? and
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not authorized? and
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not %w( login authenticate published ).include?(action_name)
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redirect_to :action => 'login'
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return false
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end
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end
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def convert_tex_to_pdf(tex_path)
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# TODO remove earlier PDF files with the same prefix
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# TODO handle gracefully situation where pdflatex is not available
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logger.info `pdflatex --interaction=nonstopmode --output-directory #{File.dirname(tex_path)} #{File.basename(tex_path)}`
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end
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def export_page_to_tex(file_path)
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tex
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File.open(file_path, 'w') { |f| f.write(render_to_string('wiki/tex')) }
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end
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def export_pages_as_zip(file_type, &block)
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file_prefix = "#{@web.address}-#{file_type}-"
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timestamp = @web.revised_on.strftime('%Y-%m-%d-%H-%M-%S')
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file_path = WikiService.storage_path + file_prefix + timestamp + '.zip'
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tmp_path = "#{file_path}.tmp"
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Zip::ZipOutputStream.open(tmp_path) do |zip_out|
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@web.select.by_name.each do |page|
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zip_out.put_next_entry("#{page.name}.#{file_type}")
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zip_out.puts(block.call(page))
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end
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# add an index file, if exporting to HTML
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if file_type.to_s.downcase == 'html'
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zip_out.put_next_entry 'index.html'
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zip_out.puts <<-EOL
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<html>
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<head>
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<META HTTP-EQUIV="Refresh" CONTENT="0;URL=HomePage.#{file_type}">
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</head>
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</html>
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EOL
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end
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end
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FileUtils.rm_rf(Dir[WikiService.storage_path + file_prefix + '*.zip'])
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FileUtils.mv(tmp_path, file_path)
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send_file(file_path, :type => 'application/zip')
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end
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def export_web_to_tex(file_path)
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@tex_content = table_of_contents(web.pages['HomePage'].content.dup, render_tex_web)
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File.open(file_path, 'w') { |f| f.write(template_engine('tex_web').result(binding)) }
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end
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def get_page_and_revision
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@revision = @page.revisions[@params['rev'].to_i]
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end
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def in_a_web?
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not @web_name.nil?
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end
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def parse_category
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@categories = @web.categories
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@category = @params['category']
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if @categories.include?(@category)
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@pages_in_category = @web.select { |page| page.in_category?(@category) }
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@set_name = "category '#{@category}'"
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else
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@pages_in_category = PageSet.new(@web).by_name
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@set_name = 'the web'
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end
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@category_links = @categories.map { |c|
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if @category == c
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%{<span class="selected">#{c}</span>}
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else
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%{<a href="?category=#{c}">#{c}</a>}
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end
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}
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end
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def password_check(password)
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if password == @web.password
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cookies['web_address'] = password
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true
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else
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false
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end
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end
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def pre_process
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@action_name = @params['action'] || 'index'
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@web_name = @params['web']
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@wiki = wiki
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@web = @wiki.webs[@web_name] unless @web_name.nil?
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@page_name = @params['id']
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@page = @wiki.read_page(@web_name, @page_name) unless @page_name.nil?
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@author = cookies['author'] || 'AnonymousCoward'
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check_authorization(@action_name)
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end
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def redirect_show(page_name = @page_name, web = @web_name)
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redirect_to :web => web, :action => 'show', :id => CGI.escape(page_name)
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end
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def remote_ip
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ip = @request.remote_ip
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logger.info(ip)
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ip
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end
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def render_rss(hide_description = false)
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@pages_by_revision = @web.select.by_revision.first(15)
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@hide_description = hide_description
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@response.headers['Content-Type'] = 'text/xml'
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render 'wiki/rss_feed'
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end
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def render_tex_web
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@web.select.by_name.inject({}) do |tex_web, page|
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tex_web[page.name] = RedClothForTex.new(page.content).to_tex
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tex_web
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end
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end
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def render_to_string(template_name)
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add_variables_to_assigns
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render template_name
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@template.render_file(template_name)
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end
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def template_engine(template_name)
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ERB.new(IO.readlines(RAILS_ROOT + '/app/views/wiki/' + template_name + '.rhtml').join)
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end
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def truncate(text, length = 30, truncate_string = '...')
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if text.length > length then text[0..(length - 3)] + truncate_string else text end
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end
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end
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