socialforge/app/controllers/zipdown_controller.rb

140 lines
4.8 KiB
Ruby
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

require 'zip'
class ZipdownController < ApplicationController
#查找项目(课程)
before_filter :find_project_by_bid_id, :only => [:assort]
#检查权限
#勿删 before_filter :authorize, :only => [:assort,:download_user_homework]
SAVE_FOLDER = "#{Rails.root}/files"
OUTPUT_FOLDER = "#{Rails.root}/tmp/archiveZip"
def assort
if params[:obj_class] == "Bid"
bid = Bid.find params[:obj_id]
file_count = 0
bid.homeworks.map { |homework| file_count += homework.attachments.count}
if file_count > 0
zipfile = zip_bid bid
else
render file: 'public/no_file_found.html'
end
else
logger.error "[ZipDown#assort] ===> #{params[:obj_class]} unKown !!"
end
send_file zipfile, :filename => bid.name + ".zip", :type => detect_content_type(zipfile) if zipfile
#rescue Exception => e
# render file: 'public/no_file_found.html'
end
#下载某一学生的作业的所有文件
def download_user_homework
homework = HomeworkAttach.find params[:homework]
if User.current.admin? || User.current.member_of_course?(homework.bid.courses.first)
if homework != nil
unless homework.attachments.empty?
zipfile = zip_homework_by_user homework
send_file zipfile, :filename => ((homework.user.user_extensions.nil? || homework.user.user_extensions.student_id.nil?) ? "" : homework.user.user_extensions.student_id) +
"_" + (homework.user.lastname.nil? ? "" : homework.user.lastname) + (homework.user.firstname.nil? ? "" : homework.user.firstname) +
"_" + homework.name + ".zip", :type => detect_content_type(zipfile) if(zipfile)
else
render file: 'public/no_file_found.html'
end
else
render file: 'public/file_not_found.html'
end
else
render_403
end
#rescue => e
# render file: 'public/file_not_found.html'
end
private
#通过作业Id找到项目课程
def find_project_by_bid_id
obj_class = params[:obj_class]
obj_id = params[:obj_id]
obj = obj_class.constantize.find(obj_id)
case obj.class.to_s.to_sym
when :Bid
@project = obj.courses[0]
end
end
def zip_bid(bid)
# Todo: User Access Controll
bid_homework_path = []
bid.homeworks.each do |homeattach|
unless homeattach.attachments.empty?
bid_homework_path << zip_homework_by_user(homeattach)
end
end
zipping "#{Time.now.to_i}_#{bid.name}.zip", bid_homework_path, OUTPUT_FOLDER
end
def zip_homework_by_user(homeattach)
homeworks_attach_path = []
not_exist_file = []
# 需要将所有homework.attachments遍历加入zip
# 并且返回zip路径
homeattach.attachments.each do |attach|
if File.exist?(attach.diskfile)
homeworks_attach_path << attach.diskfile
else
not_exist_file << attach.filename
end
end
zipping("#{homeattach.user.lastname}#{homeattach.user.firstname}_#{((homeattach.user.user_extensions.nil? || homeattach.user.user_extensions.student_id.nil?) ? "" : homeattach.user.user_extensions.student_id)}_#{Time.now.to_i.to_s}.zip", homeworks_attach_path, OUTPUT_FOLDER, true, not_exist_file)
end
def zipping(zip_name_refer, files_paths, output_path, is_attachment=false, not_exist_file=[])
# 输入待打包的文件列表已经打包文件定位到ouput_path
ic = Iconv.new('GBK//IGNORE', 'UTF-8//IGNORE')
input_filename = files_paths
rename_zipfile = zip_name_refer ||= "#{Time.now.to_i.to_s}.zip"
zipfile_name = "#{output_path}/#{rename_zipfile}"
Dir.mkdir(File.dirname(zipfile_name)) unless File.exist?(File.dirname(zipfile_name))
Zip::File.open(zipfile_name, Zip::File::CREATE) do |zipfile|
input_filename.each do |filename|
flag = true
index = 1
rename_file = ic.iconv( (File.basename(filename)) ).to_s
rename_file = ic.iconv( filename_to_real( File.basename(filename))).to_s if is_attachment
begin
zipfile.add(rename_file, filename)
flag = false
rescue Exception => e
zipfile.get_output_stream('FILE_NOTICE.txt') do |os|
os.write l(:label_file_exist)
end
next
end
end
unless not_exist_file.empty?
zipfile.get_output_stream('FILE_LOST.txt') do |os|
os.write l(:label_file_lost) + not_exist_file.join(',').to_s
end
end
end
zipfile_name
#rescue Errno => e
# logger.error "[zipdown#zipping] ===> #{e}"
# @error = e
end
def detect_content_type(name)
content_type = Redmine::MimeType.of(name)
content_type.to_s
end
def filename_to_real(name)
attach = Attachment.find_by_disk_filename(name)
attach.filename
end
end