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views.py
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views.py
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#!/usr/bin/python
#coding=utf-8
#****************************************************
# Author: 徐叶佳 - xyj.asmy@gmail.com
# Last modified: 2011-10-08 17:41
# Filename: workspace/swift_app/views.py
# Description: 视图函数
#****************************************************
from django.http import HttpResponseRedirect, HttpResponse
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.core.servers.basehttp import FileWrapper
from django.shortcuts import render_to_response
from django.contrib import auth
from swift.common import client
from swift_app.forms import Login_Form, Register_Form
from swift_app import utils
import os
def login(request):
"""登入页面"""
if request.user.is_authenticated():
return HttpResponseRedirect('/already-logged')
if request.method == 'POST':
form = Login_Form(request.POST)
if not form.is_valid():
return render_to_response('login.html',{'form':form})
username = request.POST.get('username','')
password = request.POST.get('password', '')
con = client.Connection(utils.URL,username,password)
try:
auth_url, auth_token = con.get_auth()
utils.auth_url = auth_url
utils.auth_token = auth_token
except Exception, e:
if e[0]==111:
form = Login_Form()
return render_to_response('login.html', {'form':form,'swift_no_start':True})
user = auth.authenticate(username=username, password=password)
if user is not None and user.is_active:
auth.login(request,user)
return HttpResponseRedirect('/control-panel')
else:
return render_to_response('login.html',
{'form':Login_Form(),'incorrect':True})
form = Login_Form()
return render_to_response('login.html',{'form':form})
def register(request):
if request.method == 'POST':
form = Register_Form(request.POST)
if not form.is_valid():
return render_to_response('register.html',{'form':form})
username = request.POST.get('username','')
password = request.POST.get('password','')
email = request.POST.get('email','')
if User.objects.filter(username=username):
return render_to_response('register.html',{'form':form,'msg':'该用户已存在'})
user = User.objects.create_user(username=username,password=password,email=email)
user.save()
return HttpResponseRedirect('/login')
form = Register_Form()
return render_to_response('register.html',{'form':form})
@login_required
def already_logged(request):
if request.user.is_authenticated():
return render_to_response('already_logged.html')
else:
return HttpResponseRedirect('login')
@login_required
def control_panel(request):
"""控制面板"""
user = request.user.username.split(':')[1]
account = request.user.username.split(':')[0]
container_list = utils.get_container_list()
return render_to_response('control_panel.html',
{'container_list':container_list,
'user':user,'account':account})
@login_required
def operation(request):
"""对swift的后台操作,ajax调用"""
q = request.GET.get('q','')
name = request.GET.get('name','')
if q=='cc':#创建container
try:
client.put_container(utils.auth_url, utils.auth_token, name)
except client.ClientException:
return HttpResponse('failure')
elif q=='dc': #删除container
try:
client.delete_container(utils.auth_url, utils.auth_token, name)
except client.ClientException:
return HttpResponse('failure')
elif q=='lo': #列出container中的object
try:
object_list = utils.get_object_list(name)
name_list = '^'.join([obj.get_name() for obj in object_list])
time_list = '^'.join([obj.get_last_modified() for obj in object_list])
size_list = '^'.join([str(obj.get_size()) for obj in object_list])
obj_list = '\n'.join([name_list,time_list,size_list])
return HttpResponse(obj_list)
except client.ClientException:
return HttpResponse('failure')
elif q=='do': #删除object
objs = name.split('^')
container_name = objs[-1:][0]
objs = objs[:-1]
for obj in objs:
try:
client.delete_object(utils.auth_url,utils.auth_token,
container_name, obj)
except client.ClientException:
return HttpResponse('failure')
client.put_container(utils.auth_url,utils.auth_token,
container_name)
elif q=='dl': #下载object
objs = name.split('^')
container_name = objs[-1:][0]
objs = objs[:-1]
if len(objs)==1:
response = utils.download_single_file(container_name, objs[0])
return response
elif q=='ic':#查询container信息
try:
result = client.get_container(utils.auth_url,utils.auth_token,
name)[0].get('x-container-read','')
if result:
result = utils.auth_url+'/'
return HttpResponse(result)
except client.ClientException:
return HttpResponse('failure')
elif q=='sc':#共享container
try:
client.post_container(utils.auth_url,utils.auth_token,
name,headers={'X-Container-Read':'.r:*'})
return HttpResponse(utils.auth_url+'/')
except client.ClientException:
return HttpResponse('failure')
elif q=='pc':#使container变为私有
try:
client.post_container(utils.auth_url,utils.auth_token,
name,headers={'X-Container-Read':''})
return HttpResponse('success')
except client.ClientException:
return HttpResponse('failure')
return HttpResponse('success')
@login_required
def download(request):
"""下载文件"""
name = request.GET.get('name','')
objs = name.split('^')
container_name = objs[-1:][0]
objs = objs[:-1]
if len(objs)==1:
#只有一个文件要下载的情况
result = utils.download_single_file(container_name, objs[0])
if result=='failure':
return HttpResponse(result)
wrapper = FileWrapper(open(result,'rb'))
response = HttpResponse(wrapper,mimetype='application/octet-stream')
response['Content-Length'] = os.path.getsize(result)
response['Content-Disposition'] = 'attachment; filename=%s' % objs[0].encode('utf-8')
return response
else:
#有多个文件要下载的情况
result = utils.download_multi_files(container_name, objs)
if result == 'failure':
return HttpResponse(result)
wrapper = FileWrapper(open(result,'rb'))
response = HttpResponse(wrapper,content_type='application/zip')
response['Content-Disposition'] = 'attachment; filename=all_in_one.zip'
return response
@login_required
def preview(request):
"""预览object"""
items = request.GET.get('name','').split('^')
container = items[-1:][0]
objs = items[:-1]
if len(objs)==1:
result = utils.download_single_file(container,objs[0])
if result == 'failure':
return HttpResponse(result)
if objs[0].endswith('txt'):
return HttpResponse(open(result).read(1000))
return HttpResponse(objs[0])
@login_required
def upload(request):
"""上传文件"""
illegal_char = ['+','^','#','&',' ']
file_obj = request.FILES.get('file',None)
container_name = request.POST.get('container_name','')
name = ''
for c in file_obj.name:
if c in illegal_char:
name+= '_'
else:
name+= c
file_obj.name = name
temp_file_path = os.path.join(utils.temp_dir, 'temp_up')
temp_file = open(temp_file_path,'wb')
for chunk in file_obj.chunks():
temp_file.write(chunk)
temp_file.close()
client.put_object(utils.auth_url, utils.auth_token,
container_name, file_obj.name, open(temp_file_path,'rb'))
client.put_container(utils.auth_url, utils.auth_token,
container_name)
os.remove(temp_file_path)
return HttpResponseRedirect('/control-panel')
@login_required
def move(request):
"""移动或复制object"""
src_con = request.POST.get('src_con','')
des_con = request.POST.get('des_con','')
obj_list = request.POST.get('obj_list','')
objs = obj_list.split('^')
operate = request.POST.get('operate','')
flag = False
if operate=='move':
flag = True
for obj in objs:
src = '/'+src_con+'/'+obj
des = '/'+des_con+'/'+obj
utils.copy_or_move(src, des, flag)
return HttpResponseRedirect('/control-panel')
def logout(request):
"""退出登入"""
auth.logout(request)
return HttpResponseRedirect('/login')