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							492 lines
						
					
					
						
							17 KiB
						
					
					
				# Redmine - project management software
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# Copyright (C) 2006-2013  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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class AttachmentsController < ApplicationController
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  layout "users_base"
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  before_filter :find_project, :only => [:show, :download, :thumbnail, :destroy, :delete_homework]#, :except => [:upload, :autocomplete]
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  before_filter :file_readable, :read_authorize, :only => [:show, :thumbnail]#Modified by young
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  before_filter :delete_authorize, :only => [:destroy]
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  before_filter :authorize_global, :only => [:upload]
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  before_filter :authorize_attachment_download1, :only => [:download]
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  #before_filter :login_without_softapplication, only: [:download]
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  accept_api_auth :show, :download, :upload
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  require 'iconv'
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  include AttachmentsHelper
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  include ApplicationHelper
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  def show
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    respond_to do |format|
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      format.html {
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        if @attachment.is_diff?
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          @diff = File.new(@attachment.diskfile, "rb").read
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          @diff_type = params[:type] || User.current.pref[:diff_type] || 'inline'
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          @diff_type = 'inline' unless %w(inline sbs).include?(@diff_type)
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          # Save diff type as user preference
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          if User.current.logged? && @diff_type != User.current.pref[:diff_type]
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            User.current.pref[:diff_type] = @diff_type
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            User.current.preference.save
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          end
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          render :action => 'diff'
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        elsif @attachment.is_text? && @attachment.filesize <= Setting.file_max_size_displayed.to_i.kilobyte
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          @content = File.new(@attachment.diskfile, "rb").read
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          # 编码为非 UTF-8先进行间接转码
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          # 部分unicode编码不直接支持转为 UTF-8
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          # modify by nwb
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          if @content.encoding.name != 'UTF-8'
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            @content = @content.force_encoding('GBK')
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            @content = @content.encode('UTF-8')
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          end
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          render :action => 'file'
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        else
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          download
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        end
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      }
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      format.api
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    end
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  rescue  Encoding::InvalidByteSequenceError => e
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    render :action => 'file'
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  end
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  def pdf?(file)
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    file.downcase.end_with?(".pdf")
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  end
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  def download
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    # modify by nwb
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    # 下载添加权限设置
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    candown = attachment_candown @attachment
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    if candown || User.current.admin? || User.current.id == @attachment.author_id
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      @attachment.increment_download
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      if stale?(:etag => @attachment.digest)
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        convered_file = @attachment.disk_filename
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        unless pdf?(convered_file)
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          convered_file = File.join(Rails.root, "files", "convered_office", @attachment.disk_filename + ".pdf")
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        end
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        if File.exist?(convered_file) && pdf?(convered_file)
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          send_file convered_file,  :type => 'application/pdf; charset=utf-8', :disposition => 'inline'
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        else
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          send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
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            :type => detect_content_type(@attachment),
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            :disposition => 'attachment'    #inline can open in browser
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        end
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      end
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    else
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      render_403 :message => :notice_not_authorized
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    end
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  rescue => e
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    redirect_to "http:  //" + (Setting.host_name.to_s) +"/file_not_found.html"
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  end
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  #更新资源文件类型
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  def updateType
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    @attachment = Attachment.find(params[:attachmentid])
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    if  @attachment != nil
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      @attachment.attachtype =  params[:newtype]
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      @attachment.save
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      render :text =>'success'
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    else
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      render :text=>'error'
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    end
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  end
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  # 更新文件密级
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  def updateFileDense
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    @attachment = Attachment.find(params[:attachmentid])
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    if  @attachment != nil
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      filedense = params[:newtype].to_s
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     # d =  Iconv.conv("unicodebig","utf-8",filedense)
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      if filedense == "%E5%85%AC%E5%BC%80" #l(:field_is_public)
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        @attachment.is_public = 1
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      else
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        @attachment.is_public = 0
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      end
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      @attachment.save
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      @newfiledense = filedense
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    end
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    respond_to do |format|
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      format.js
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    end
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  end
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  def update_file_dense
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    @attachment = Attachment.find(params[:attachmentid])
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    if  @attachment != nil
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      filedense = params[:newtype].to_s
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      if filedense == "1"
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        @attachment.is_public = 1
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      else
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        @attachment.is_public = 0
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      end
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      @attachment.save
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      @newfiledense = filedense
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    end
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    respond_to do |format|
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      format.js
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    end
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  end
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  def thumbnail
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    if @attachment.thumbnailable? && thumbnail = @attachment.thumbnail(:size => params[:size])
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      if stale?(:etag => thumbnail)
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        send_file thumbnail,
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          :filename => filename_for_content_disposition(@attachment.filename),
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          :type => detect_content_type(@attachment),
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          :disposition => 'inline'
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      end
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    else
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      # No thumbnail for the attachment or thumbnail could not be created
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      render :nothing => true, :status => 404
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    end
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  end
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  def upload
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    # Make sure that API users get used to set this content type
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    # as it won't trigger Rails' automatic parsing of the request body for parameters
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    unless request.content_type == 'application/octet-stream'
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      render :nothing => true, :status => 406
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      return
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    end
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    @attachment = Attachment.new(:file => request.raw_post)
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    @attachment.author = User.current
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    if !params[:project].nil?
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      @attachment.container_type = 'Project'
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      @attachment.container_id = params[:project].split("?")[0]
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    end
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    @attachment.filename = params[:filename].presence || Redmine::Utils.random_hex(16)
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    saved = @attachment.save
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    respond_to do |format|
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      format.js
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      format.api {
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        if saved
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          render :action => 'upload', :status => :created
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        else
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          render_validation_errors(@attachment)
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        end
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      }
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    end
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  end
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  def destroy
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    if @attachment.container.respond_to?(:init_journal)
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      @attachment.container.init_journal(User.current)
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    end
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    if @attachment.container
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      @attachment.container.attachments.delete(@attachment)
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    else
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      @attachment.destroy
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    end
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    respond_to do |format|
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      if !@attachment.container.nil? &&
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         (@attachment.container.is_a?(Course) || ((@attachment.container.has_attribute?(:course) || @attachment.container.has_attribute?(:course_id) )  &&
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         @attachment.container.course ) || ((@attachment.container.has_attribute?(:board) || @attachment.container.has_attribute?(:board_id)) &&
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         @attachment.container.board && @attachment.container.board.course ) )
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        if @attachment.container.is_a?(News)
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          format.html { redirect_to_referer_or news_path(@attachment.container) }
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        elsif @attachment.container.is_a?(Message)
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          format.html { redirect_to_referer_or new_board_message_path(@attachment.container) }
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        elsif @course.nil?
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          format.html { redirect_to_referer_or forum_memo_path(@attachment.container.forum, @attachment.container) }
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        else
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          format.html { redirect_to_referer_or course_path(@course) }
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        end
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      elsif !@attachment.container.nil? && @attachment.container.is_a?(Softapplication)
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        format.html { redirect_to_referer_or softapplications_path(@attachment.container) }
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      elsif !@attachment.container.nil? && @attachment.container.is_a?(Bid)
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        format.html { redirect_to_referer_or respond_path(@attachment.container) }
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      elsif !@attachment.container.nil? && @attachment.container.is_a?(PhoneAppVersion)
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        format.html { redirect_to_referer_or mobile_version_path }
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      else
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         if @project.nil?
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           format.html { redirect_to_referer_or forum_memo_path(@attachment.container.forum, @attachment.container) }
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         else
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          format.html { redirect_to_referer_or project_path(@project) }
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         end
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      end
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      format.js
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    end
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  end
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  def delete_homework
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      @bid = @attachment.container.bid
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      # Make sure association callbacks are called
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      container = @attachment.container
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      @attachment.container.attachments.delete(@attachment)
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      #if container.attachments.empty?
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        #container.delete
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      #end
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    respond_to do |format|
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      format.html { redirect_to_referer_or respond_path(@bid) }
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      format.js
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    end
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  end
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  #删除竞赛作品的附件
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  def delete_softapplications
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    @attachment = Attachment.find params[:id]
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    @softapplication = @attachment.container if @attachment!=nil
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    @attachment.container.attachments.delete(@attachment)  if @attachment!=nil
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    respond_to do |format|
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      format.html { redirect_to_referer_or edit_softapplication_path(@softapplication) }
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      #format.js
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    end
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  end
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  def autocomplete
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    # modify by nwb
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    if params[:project_id]
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      @project = Project.find_by_id(params[:project_id])
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    elsif params[:course_id]
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      @course = Course.find_by_id(params[:course_id])
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    end
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    respond_to do |format|
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      format.js
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    end
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  end
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  def add_exist_file_to_project
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    classname = params[:class_name]
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    class_id  = params[:class_id]
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    attachments = params[:attachment][:attach]
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    obj = Object.const_get(classname).find_by_id(class_id)
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    attachments.collect do |attach_id|
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      ori = Attachment.find_by_id(attach_id)
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      next if ori.blank?
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      attach_copied_obj = ori.copy
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      attach_copied_obj.tag_list.add(ori.tag_list) # tag关联
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      attach_copied_obj.container = obj
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      attach_copied_obj.created_on = Time.now
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      attach_copied_obj.author_id = User.current.id
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      if attach_copied_obj.attachtype == nil
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        attach_copied_obj.attachtype = 1
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      end
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      @obj = obj
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      @save_flag = attach_copied_obj.save
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      @save_message = attach_copied_obj.errors.full_messages
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    end
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    respond_to do |format|
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      format.js 
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    end
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  rescue NoMethodError
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    @save_flag = false
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    @save_message = [] << l(:error_attachment_empty)
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    respond_to do |format|
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      format.js 
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    end
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  end
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  def add_exist_file_to_course
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    class_id  = params[:class_id]
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    attachments = params[:attachment][:attach]
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    obj = Course.find_by_id(class_id)
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    attachments.collect do |attach_id|
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      ori = Attachment.find_by_id(attach_id)
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      next if ori.blank?
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      attach_copied_obj = ori.copy
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      attach_copied_obj.tag_list.add(ori.tag_list) # tag关联
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      attach_copied_obj.container = obj
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      attach_copied_obj.created_on = Time.now
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      attach_copied_obj.author_id = User.current.id
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      if attach_copied_obj.attachtype == nil
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        attach_copied_obj.attachtype = 4
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      end
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      @obj = obj
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      @save_flag = attach_copied_obj.save
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      @save_message = attach_copied_obj.errors.full_messages
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    end
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    respond_to do |format|
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      format.js
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    end
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  rescue NoMethodError
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    @save_flag = false
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    @save_message = [] << l(:error_attachment_empty)
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    respond_to do |format|
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      format.js
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    end
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  end
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  def add_exist_file_to_projects
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    file = Attachment.find(params[:file_id])
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    projects = params[:projects][:project]
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    @message = ""
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    projects.each do |project|
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      c = Project.find(project);
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      if project_contains_attachment?(c,file)
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        if @message && @message == ""
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          @message += l(:label_project_prompt) + c.name + l(:label_contain_resource) + file.filename + l(:label_quote_resource_failed)
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          next
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        else
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          @message +=  "<br/>" + l(:label_project_prompt) + c.name + l(:label_contain_resource) + file.filename + l(:label_quote_resource_failed)
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          next
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        end
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      end
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      attach_copied_obj = file.copy
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      attach_copied_obj.tag_list.add(file.tag_list) # tag关联
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      attach_copied_obj.container = c
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      attach_copied_obj.created_on = Time.now
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      attach_copied_obj.author_id = User.current.id
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      attach_copied_obj.copy_from = file.copy_from.nil? ? file.id : file.copy_from
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      if attach_copied_obj.attachtype == nil
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        attach_copied_obj.attachtype = 4
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      end
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      @obj = c
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      @save_flag = attach_copied_obj.save
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      @save_message = attach_copied_obj.errors.full_messages
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      update_quotes attach_copied_obj
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    end
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    respond_to do |format|
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      format.js
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    end
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  rescue NoMethodError
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    @save_flag = false
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    @save_message = [] << l(:label_course_empty_select)
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    respond_to do |format|
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      format.js
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    end
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  end
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  def add_exist_file_to_courses
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    file = Attachment.find(params[:file_id])
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    courses = params[:courses][:course]
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    @message = ""
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    courses.each do |course|
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      c = Course.find(course);
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      if course_contains_attachment?(c,file)
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        if @message && @message == ""
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          @message += l(:label_course_prompt) + c.name + l(:label_contain_resource) + file.filename + l(:label_quote_resource_failed)
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          next
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        else
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          @message +=  "<br/>" + l(:label_course_prompt) + c.name + l(:label_contain_resource) + file.filename + l(:label_quote_resource_failed)
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          next
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        end
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      end
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      attach_copied_obj = file.copy
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      attach_copied_obj.tag_list.add(file.tag_list) # tag关联
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      attach_copied_obj.container = c
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      attach_copied_obj.created_on = Time.now
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      attach_copied_obj.author_id = User.current.id
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      attach_copied_obj.copy_from = file.copy_from.nil? ? file.id : file.copy_from
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      if attach_copied_obj.attachtype == nil
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        attach_copied_obj.attachtype = 4
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      end
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      @obj = c
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      @save_flag = attach_copied_obj.save
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      @save_message = attach_copied_obj.errors.full_messages
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      update_quotes attach_copied_obj
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    end
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    respond_to do |format|
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      format.js
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    end
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  rescue NoMethodError
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    @save_flag = false
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    @save_message = [] << l(:label_course_empty_select)
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    respond_to do |format|
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      format.js
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    end
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  end
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  def update_quotes attachment
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    if attachment.copy_from
 | 
						|
      attachments = Attachment.find_by_sql("select * from attachments where copy_from = #{attachment.copy_from} or id =  #{attachment.copy_from}")
 | 
						|
    else
 | 
						|
      attachments = Attachment.find_by_sql("select * from attachments where copy_from = #{attachment.id} or id = #{attachment.copy_from}")
 | 
						|
    end
 | 
						|
    attachment.quotes = get_qute_number attachment
 | 
						|
    attachment.save
 | 
						|
    attachments.each do |att|
 | 
						|
      att.quotes = attachment.quotes
 | 
						|
      att.save
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
private
 | 
						|
  def find_project
 | 
						|
    @attachment = Attachment.find(params[:id])
 | 
						|
    # Show 404 if the filename in the url is wrong
 | 
						|
    # modify by nwb
 | 
						|
    raise ActiveRecord::RecordNotFound if params[:filename] && params[:filename] != @attachment.filename
 | 
						|
    if @attachment.container_type == 'Course'
 | 
						|
      @course = @attachment.course
 | 
						|
    elsif  !@attachment.container.nil? && (@attachment.container.has_attribute?(:course) || @attachment.container.has_attribute?(:course_id)) && @attachment.container.course
 | 
						|
      @course = @attachment.container.course
 | 
						|
    elsif !@attachment.container.nil? && ((@attachment.container.has_attribute?(:board) || @attachment.container.has_attribute?(:board_id)) && @attachment.container.board &&
 | 
						|
        @attachment.container.board.course)
 | 
						|
      @course = @attachment.container.board.course
 | 
						|
    else
 | 
						|
      unless @attachment.container_type == 'Bid' || @attachment.container_type == 'HomeworkAttach' || @attachment.container_type == 'Memo' || @attachment.container_type == 'Softapplication' || @attachment.container_type == 'PhoneAppVersion' || @attachment.container_type == 'StudentWorksScore'|| @attachment.container_type == 'StudentWorks'
 | 
						|
        @project = @attachment.project
 | 
						|
      end
 | 
						|
    end
 | 
						|
  rescue ActiveRecord::RecordNotFound
 | 
						|
    render_404
 | 
						|
  end
 | 
						|
 | 
						|
  # Checks that the file exists and is readable
 | 
						|
  def file_readable
 | 
						|
    if @attachment.readable?
 | 
						|
      true
 | 
						|
    else
 | 
						|
      logger.error "Cannot send attachment, #{@attachment.diskfile} does not exist or is unreadable."
 | 
						|
      render_404
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  def read_authorize
 | 
						|
    if @attachment.container_type == "HomeworkAttach" || @attachment.container_type == 'Bid'
 | 
						|
     true
 | 
						|
      #User.current.allowed_to?(:view_homework_attaches, @attachment.project) ? true : deny_access
 | 
						|
    else
 | 
						|
      @attachment.visible? ? true : deny_access
 | 
						|
    end
 | 
						|
  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
 | 
						|
 | 
						|
  def login_without_softapplication
 | 
						|
    referer = request.headers['Referer']
 | 
						|
    require_login unless referer =~ /softapplication/ || @attachment.container_type == "Memo"
 | 
						|
  end
 | 
						|
 | 
						|
  def  renderTag
 | 
						|
    @attachmentNew = Attachment.find(params[:attchmentId])
 | 
						|
       respond_to do |format|
 | 
						|
      format.js
 | 
						|
    end
 | 
						|
  end
 | 
						|
end
 |