~azzar1/unity/add-show-desktop-key

# IVLE

# Copyright (C) 2007-2009 The University of Melbourne

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

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

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

# Author: Matt Giuca, Will Grant

'''Service for accessing a jail's filesystem.

This application is a wrapper around the library module fileservice, running

it through trampoline.

It receives file handling instructions as requests, performs actions on the

student's workspace, and returns directory listings in JSON.

See the documentation in ivle.fileservice_lib for details.

'''

import os.path

import ivle.interpret

from ivle.webapp.base.views import BaseView

from ivle.webapp.base.plugins import ViewPlugin

from ivle.webapp import ApplicationRoot

# XXX: Writes to req directly. This is a direct port of the legacy version.

#      This needs to be rewritten soon.

class FileserviceView(BaseView):

    subpath_allowed = True

    def authorize(self, req):

        return req.user is not None

    def render(self, req):

        """Handler for the File Services application."""

        if len(self.path) == 0:

            # If no path specified, default to the user's home directory

            req.throw_redirect(req.make_path(os.path.join('fileservice',

                                                          req.user.login)))

        interp_object = ivle.interpret.interpreter_objects["cgi-python"]

        user_jail_dir = os.path.join(req.config['paths']['jails']['mounts'],

                                     req.user.login)

        ivle.interpret.interpret_file(req, req.user, user_jail_dir,

                                  os.path.join(req.config['paths']['share'],

                                               'services/fileservice'),

                                  interp_object, gentle=False)

    @property

    def path(self):

        return os.path.join(*self.subpath) if self.subpath else ''

class Plugin(ViewPlugin):

    views = [(ApplicationRoot, 'fileservice', FileserviceView)]