1 # copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

     2 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

     3 #

     4 # This file is part of CubicWeb.

     5 #

     6 # CubicWeb is free software: you can redistribute it and/or modify it under the

     7 # terms of the GNU Lesser General Public License as published by the Free

     8 # Software Foundation, either version 2.1 of the License, or (at your option)

     9 # any later version.

    10 #

    11 # CubicWeb is distributed in the hope that it will be useful, but WITHOUT

    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

    14 # details.

    15 #

    16 # You should have received a copy of the GNU Lesser General Public License along

    17 # with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

    18 

    19 from cubicweb.web.views.ajaxcontroller import ajaxfunc

    20 

    21 def _recursive_replace_stream_by_content(tree):

    22     """ Search for streams (i.e. object that have a 'read' method) in a tree

    23     (which branches are lists or tuples), and substitute them by their content,

    24     leaving other leafs identical. A copy of the tree with only lists as

    25     branches is returned.

    26     """

    27     if not isinstance(tree, (list, tuple)):

    28         if hasattr(tree, 'read'):

    29             return tree.read()

    30         return tree

    31     else:

    32         return [_recursive_replace_stream_by_content(value)

    33                 for value in tree]            

    34 

    35 

    36 @ajaxfunc(output_type='json')

    37 def fileupload(self):

    38     """ Return a json copy of the web request formin which uploaded files

    39     are read and their content substitute the received streams.

    40     """

    41     try:

    42         result_dict = {}

    43         for key, value in self._cw.form.iteritems():

    44             result_dict[key] = _recursive_replace_stream_by_content(value)

    45         return result_dict

    46     except Exception, ex:

    47         import traceback as tb

    48         tb.print_exc(ex)