comparison app/controllers/.svn/text-base/attachments_controller.rb.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

+# Redmine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class AttachmentsController < ApplicationController
+  before_filter :find_project
+  before_filter :file_readable, :read_authorize, :except => :destroy
+  before_filter :delete_authorize, :only => :destroy
+  
+  verify :method => :post, :only => :destroy
+  
+  def show
+    if @attachment.is_diff?
+      @diff = File.new(@attachment.diskfile, "rb").read
+      render :action => 'diff'
+    elsif @attachment.is_text? && @attachment.filesize <= Setting.file_max_size_displayed.to_i.kilobyte
+      @content = File.new(@attachment.diskfile, "rb").read
+      render :action => 'file'
+    else
+      download
+    end
+  end
+  
+  def download
+    if @attachment.container.is_a?(Version) || @attachment.container.is_a?(Project)
+      @attachment.increment_download
+    end
+    
+    # images are sent inline
+    send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
+                                    :type => detect_content_type(@attachment), 
+                                    :disposition => (@attachment.image? ? 'inline' : 'attachment')
+   
+  end
+  
+  def destroy
+    # Make sure association callbacks are called
+    @attachment.container.attachments.delete(@attachment)
+    redirect_to :back
+  rescue ::ActionController::RedirectBackError
+    redirect_to :controller => 'projects', :action => 'show', :id => @project
+  end
+  
+private
+  def find_project
+    @attachment = Attachment.find(params[:id])
+    # Show 404 if the filename in the url is wrong
+    raise ActiveRecord::RecordNotFound if params[:filename] && params[:filename] != @attachment.filename
+    @project = @attachment.project
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+  
+  # Checks that the file exists and is readable
+  def file_readable
+    @attachment.readable? ? true : render_404
+  end
+  
+  def read_authorize
+    @attachment.visible? ? true : deny_access
+  end
+  
+  def delete_authorize
+    @attachment.deletable? ? true : deny_access
+  end
+  
+  def detect_content_type(attachment)
+    content_type = attachment.content_type
+    if content_type.blank?
+      content_type = Redmine::MimeType.of(attachment.filename)
+    end
+    content_type.to_s
+  end
+end