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# redMine - project management software
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# Copyright (C) 2006-2007 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require 'diff'
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class WikiController < ApplicationController
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layout 'base'
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before_filter :find_wiki, :authorize
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verify :method => :post, :only => [:destroy, :destroy_attachment, :protect], :redirect_to => { :action => :index }
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helper :attachments
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include AttachmentsHelper
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# display a page (in editing mode if it doesn't exist)
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def index
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page_title = params[:page]
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@page = @wiki.find_or_new_page(page_title)
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if @page.new_record?
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if User.current.allowed_to?(:edit_wiki_pages, @project)
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edit
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render :action => 'edit'
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else
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render_404
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end
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return
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end
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@content = @page.content_for_version(params[:version])
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if params[:export] == 'html'
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export = render_to_string :action => 'export', :layout => false
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send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")
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return
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elsif params[:export] == 'txt'
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send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")
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return
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end
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@editable = editable?
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render :action => 'show'
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end
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# edit an existing page or a new one
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def edit
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@page = @wiki.find_or_new_page(params[:page])
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return render_403 unless editable?
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@page.content = WikiContent.new(:page => @page) if @page.new_record?
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@content = @page.content_for_version(params[:version])
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@content.text = "h1. #{@page.pretty_title}" if @content.text.blank?
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# don't keep previous comment
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@content.comments = nil
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if request.post?
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if !@page.new_record? && @content.text == params[:content][:text]
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# don't save if text wasn't changed
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redirect_to :action => 'index', :id => @project, :page => @page.title
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return
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end
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#@content.text = params[:content][:text]
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#@content.comments = params[:content][:comments]
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@content.attributes = params[:content]
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@content.author = User.current
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# if page is new @page.save will also save content, but not if page isn't a new record
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if (@page.new_record? ? @page.save : @content.save)
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redirect_to :action => 'index', :id => @project, :page => @page.title
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end
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end
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rescue ActiveRecord::StaleObjectError
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# Optimistic locking exception
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flash[:error] = l(:notice_locking_conflict)
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end
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# rename a page
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def rename
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@page = @wiki.find_page(params[:page])
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return render_403 unless editable?
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@page.redirect_existing_links = true
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# used to display the *original* title if some AR validation errors occur
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@original_title = @page.pretty_title
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if request.post? && @page.update_attributes(params[:wiki_page])
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flash[:notice] = l(:notice_successful_update)
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redirect_to :action => 'index', :id => @project, :page => @page.title
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end
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end
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def protect
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page = @wiki.find_page(params[:page])
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page.update_attribute :protected, params[:protected]
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redirect_to :action => 'index', :id => @project, :page => page.title
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end
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# show page history
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def history
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@page = @wiki.find_page(params[:page])
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@version_count = @page.content.versions.count
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@version_pages = Paginator.new self, @version_count, per_page_option, params['p']
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# don't load text
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@versions = @page.content.versions.find :all,
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:select => "id, author_id, comments, updated_on, version",
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:order => 'version DESC',
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:limit => @version_pages.items_per_page + 1,
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:offset => @version_pages.current.offset
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render :layout => false if request.xhr?
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end
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def diff
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@page = @wiki.find_page(params[:page])
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@diff = @page.diff(params[:version], params[:version_from])
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render_404 unless @diff
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end
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def annotate
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@page = @wiki.find_page(params[:page])
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@annotate = @page.annotate(params[:version])
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end
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# remove a wiki page and its history
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def destroy
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@page = @wiki.find_page(params[:page])
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return render_403 unless editable?
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@page.destroy if @page
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redirect_to :action => 'special', :id => @project, :page => 'Page_index'
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end
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# display special pages
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def special
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page_title = params[:page].downcase
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case page_title
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# show pages index, sorted by title
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when 'page_index', 'date_index'
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# eager load information about last updates, without loading text
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@pages = @wiki.pages.find :all, :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on",
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:joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id",
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:order => 'title'
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@pages_by_date = @pages.group_by {|p| p.updated_on.to_date}
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# export wiki to a single html file
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when 'export'
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@pages = @wiki.pages.find :all, :order => 'title'
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export = render_to_string :action => 'export_multiple', :layout => false
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send_data(export, :type => 'text/html', :filename => "wiki.html")
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return
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else
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# requested special page doesn't exist, redirect to default page
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redirect_to :action => 'index', :id => @project, :page => nil and return
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end
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render :action => "special_#{page_title}"
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end
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def preview
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page = @wiki.find_page(params[:page])
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# page is nil when previewing a new page
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return render_403 unless page.nil? || editable?(page)
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@attachements = page.attachments if page
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@text = params[:content][:text]
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render :partial => 'common/preview'
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end
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def add_attachment
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@page = @wiki.find_page(params[:page])
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return render_403 unless editable?
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attach_files(@page, params[:attachments])
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redirect_to :action => 'index', :page => @page.title
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end
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def destroy_attachment
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@page = @wiki.find_page(params[:page])
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return render_403 unless editable?
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@page.attachments.find(params[:attachment_id]).destroy
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redirect_to :action => 'index', :page => @page.title
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end
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private
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def find_wiki
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@project = Project.find(params[:id])
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@wiki = @project.wiki
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render_404 unless @wiki
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rescue ActiveRecord::RecordNotFound
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render_404
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end
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# Returns true if the current user is allowed to edit the page, otherwise false
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def editable?(page = @page)
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page.editable_by?(User.current)
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end
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end
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