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