socialforge/app/controllers/zipdown_controller.rb

178 lines
6.0 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"
#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 assort
obj_class = params[:obj_class]
obj_id = params[:obj_id]
obj = obj_class.constantize.find(obj_id)
zipfile = nil
case obj.class.to_s.to_sym
when :Bid
zipfile = zip_bid obj
else
logger.error "[ZipDown#assort] ===> #{obj.class.to_s.to_sym} unKown !!"
end
send_file zipfile, :filename => obj.name+".zip", :type => detect_content_type(zipfile) if zipfile
rescue Exception => e
render file: 'public/no_file_found.html' , :layout => 'course_base'
#logger.error "[ZipDown] ===> #{e}"
#@error = e
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
if homework.attachments.count > 0
zipfile = zip_homework_by_user homework
send_file zipfile, :filename => homework.name+".zip", :type => detect_content_type(zipfile) if(zipfile)
else
render file: 'public/no_file_found.html' , :layout => 'course_base'
end
else
render file: 'public/file_not_found.html' , :layout => 'course_base'
end
else
render_403 :message => :notice_not_authorized ,:layout => "course_base"
end
rescue => e
render file: 'public/file_not_found.html' , :layout => 'course_base'
end
private
def zip_user_bid(bid,user_id)
# Todo: User Access Controll
homeattaches = bid.homeworks.where("user_id = ?",user_id)
# 得到每一个人所有文件打包的zip文件
# 并将每一个人的zip打包为一个并返回路径
user_zip_paths = homeattaches.map do |homeattach|
zip_homework_by_user homeattach
end
#zipping "#{Time.now.to_i}_#{bid.name}.zip", user_zip_paths, OUTPUT_FOLDER
user_zip_paths
end
def zip_bid(bid)
# Todo: User Access Controll
homeattaches = bid.homeworks
#记录所有作业是不是有附件有一个附件就改为true
#has_file = false
# 得到每一个人所有文件打包的zip文件
# 并将每一个人的zip打包为一个并返回路径
user_zip_paths = homeattaches.map do |homeattach|
if homeattach.attachments.count > 0
zip_homework_by_user homeattach
#has_file = true unless has_file
end
end
#unless has_file
# render file: 'public/no_file_fond.html' , :layout => 'course_base'
#end
zipping "#{Time.now.to_i}_#{bid.name}.zip", user_zip_paths, OUTPUT_FOLDER
#@paths = homeworks_attach_path
#zipfile = ziping homeworks_attach_path
#send_file zipfile, :filename => bid.name,
# :type => detect_content_type(zipfile)
#rescue Errno::ENOENT => e
# logger.error "[Errno::ENOENT] ===> #{e}"
# @error = e
end
def zip_homework_by_user(homeattach)
#if homeattach.attachments.count > 0
homeworks_attach_path = []
# 需要将所有homework.attachments遍历加入zip
# 并且返回zip路径
user_attaches_paths = homeattach.attachments.each do |attach|
#length = attach.storage_path.length
homeworks_attach_path << attach.diskfile#.to_s.slice((length+1)..-1)
end
zipping("#{homework.user.user_extensions.student_id}_#{homeattach.user.name.to_s}.zip", homeworks_attach_path, OUTPUT_FOLDER, true)
#user_attaches_paths
#end
end
def zipping(zip_name_refer, files_paths, output_path, is_attachment=false)
# 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 ||= "archive_#{Time.now.to_i}.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|
rename_file = Time.now.to_i.to_s+ ic.iconv( (File.basename(filename)) ).to_s
rename_file = ic.iconv( filename_to_real( File.basename(filename))).to_s if is_attachment
zipfile.add(rename_file, filename)
end
zipfile.get_output_stream('ReadMe') do |os|
os.write 'Homeworks'
end
end
zipfile_name
rescue Errno => e
logger.error "[zipdown#zipping] ===> #{e}"
@error = e
end
#def ziping files_path
# ic = Iconv.new('GBK//IGNORE', 'UTF-8//IGNORE')
# folder = SaveFolder
# input_filename = files_path
# zipfile_name = "#{OutputFolder}/archive_#{Time.now.to_i}.zip"
#
# 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|
# zipfile.add(ic.iconv(filename_to_real(File.basename(filename))), folder + '/' + filename)
# end
# zipfile.get_output_stream("ReadMe") { |os|
# os.write "Homeworks"
# }
# 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