filex/uploadhandler.py

   1 from functools import wraps
   2
   3 from django.core.files.uploadedfile import UploadedFile
   4 from django.core.files.uploadhandler import FileUploadHandler, StopUpload, StopFutureHandlers
   5 from django.views.decorators.csrf import csrf_exempt, csrf_protect
   6
   7 from filex.ftp import FTPOperation
   8
   9
  10 class FtpUploadHandler(FileUploadHandler):
  11     ftp = None
  12
  13     def new_file(self, file_name, *args, **kwargs):
  14         super(FtpUploadHandler, self).new_file(file_name, *args, **kwargs)
  15
  16         # TODO limit to selected request.path
  17         # TODO validate host and path
  18         host = self.request.GET.get('host')
  19         path = self.request.GET.get('path')
  20
  21         if self.request.user.is_anonymous() or not host or not path:
  22             raise StopUpload(connection_reset=True)
  23
  24         if self.ftp is None:
  25             self.ftp = FTPOperation(self.request.session['proxy'], self.chunk_size)
  26
  27         self.ftp.put('gsiftp://' + host + path + self.file_name)
  28
  29         StopFutureHandlers()
  30
  31     def receive_data_chunk(self, raw_data, start):
  32         self.ftp.stream.put(raw_data)
  33
  34     def file_complete(self, file_size):
  35         # signal end of data and wait for finish
  36         self.ftp.stream.put(None)
  37         self.ftp.wait()
  38
  39         return UploadedFile(name=self.file_name, size=file_size, charset=self.charset,
  40                             content_type=self.content_type, content_type_extra=self.content_type_extra)
  41
  42
  43 def with_ftp_upload_handler(view_func):
  44     @wraps(view_func)
  45     def wrapped_view(request, *args, **kwargs):
  46         request.upload_handlers = [FtpUploadHandler(request)]
  47
  48         return csrf_protect(view_func)(request, *args, **kwargs)
  49
  50     return csrf_exempt(wrapped_view)