require 'application' require 'fileutils' require 'redcloth_for_tex' class WikiController < ApplicationController layout 'default', :except => [:rss_feed, :rss_with_headlines, :tex, :export_tex, :export_html] def index if @web_name redirect_show 'HomePage' elsif not @wiki.setup? redirect_to :controller => 'admin', :action => 'create_system' elsif @wiki.webs.length == 1 redirect_show 'HomePage', @wiki.webs.values.first.address else redirect_to :action => 'web_list' end 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 = @wiki.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_file "#{file_path}.pdf" end def export_tex file_name = "#{@web.address}-tex-#{@web.revised_on.strftime('%Y-%m-%d-%H-%M-%S')}.tex" file_path = @wiki.storage_path + file_name export_web_to_tex(file_path) unless FileTest.exists?(file_path) send_file 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 # 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 = @wiki.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? cookies['author'] = @params['author'] begin page = @web.pages[@page_name] if @web.pages[@page_name] wiki.revise_page( @web_name, @page_name, @params['content'], Time.now, Author.new(@params['author'], remote_ip) ) page.unlock else wiki.write_page( @web_name, @page_name, @params['content'], Time.now, Author.new(@params['author'], remote_ip) ) end redirect_show(@page_name) rescue Instiki::ValidationError => e page.unlock if defined? page flash[:error] = e return_to_last_remembered end 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 convert_tex_to_pdf(tex_path) # TODO remove earlier PDF files with the same prefix # TODO handle gracefully situation where pdflatex is not available begin wd = Dir.getwd Dir.chdir(File.dirname(tex_path)) logger.info `pdflatex --interaction=nonstopmode #{File.basename(tex_path)}` ensure Dir.chdir(wd) end 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 = @wiki.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[@wiki.storage_path + file_prefix + '*.zip']) FileUtils.mv(tmp_path, file_path) send_file file_path 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(render_to_string('wiki/tex_web')) } end def get_page_and_revision @revision = @page.revisions[@params['rev'].to_i] 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 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 @performed_render = false @template.render_file(template_name) end def truncate(text, length = 30, truncate_string = '...') if text.length > length then text[0..(length - 3)] + truncate_string else text end end end