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# Copyright 2013 Agustin Zubiaga <aguz@sugarlabs.org>
#
# 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 3 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
import os
import logging
from tornado import httpserver
from tornado import ioloop
from tornado import web
from tornado import websocket
from gi.repository import GLib
import utils
import tempfile
import base64
class UploaderHandler(web.RequestHandler):
def initialize(self, instance_path, static_path, journal_manager):
self.instance_path = instance_path
self.static_path = static_path
self.jm = journal_manager
def post(self):
journal_item = self.request.files['journal_item'][0]
# save to the journal
zipped_file_path = os.path.join(self.instance_path, 'received.journal')
f = open(zipped_file_path, 'wb')
try:
f.write(journal_item['body'])
finally:
f.close()
metadata, preview_data, file_path = \
utils.unpackage_ds_object(zipped_file_path, None)
logging.error('METADATA %s', metadata)
GLib.idle_add(self.jm.create_object, file_path, metadata,
preview_data)
#redirect to index.html page
f = open(os.path.join(self.static_path, 'reload_index.html'))
self.write(f.read())
f.close()
self.flush()
class DatastoreHandler(web.StaticFileHandler):
def set_extra_headers(self, path):
"""For subclass to add extra headers to the response"""
self.set_header("Content-Type", 'application/journal')
class JournalWebSocketHandler(websocket.WebSocketHandler):
def initialize(self, instance_path, journal_manager):
self._instance_path = instance_path
self._jm = journal_manager
self._jm.connect('updated', self.__journal_manager_updated_cb)
def __journal_manager_updated_cb(self, jm):
logging.error('ON JournalWebSocketHandler jm updated')
try:
f = open(os.path.join(self._instance_path, 'selected.json'))
logging.error(os.path.join(self._instance_path, 'selected.json'))
json = f.read()
f.close()
logging.error(json)
self.write_message(json)
except:
logging.error('Exception sending websocket msg')
def open(self):
logging.error("WebSocket opened")
def on_message(self, message):
self.write_message(u"You said: " + message)
def on_close(self):
logging.error("WebSocket closed")
class WebSocketUploadHandler(websocket.WebSocketHandler):
def initialize(self, instance_path, journal_manager):
self._instance_path = instance_path
self._jm = journal_manager
def open(self):
self._tmp_file = tempfile.NamedTemporaryFile(
mode='r+', dir=self._instance_path)
def on_message(self, message):
self._tmp_file.write(message)
self._tmp_file.flush()
self.write_message('NEXT')
def on_close(self):
# save to the journal
# decode the file
self._decoded_tmp_file = tempfile.NamedTemporaryFile(
mode='r+', dir=self._instance_path)
self._tmp_file.seek(0)
base64.decode(self._tmp_file, self._decoded_tmp_file)
self._decoded_tmp_file.flush()
metadata, preview_data, file_path = \
utils.unpackage_ds_object(self._decoded_tmp_file.name, None)
logging.error('METADATA %s', metadata)
GLib.idle_add(self._jm.create_object, file_path, metadata,
preview_data)
self._tmp_file.close()
self._decoded_tmp_file.close()
def run_server(activity_path, activity_root, jm, port):
from threading import Thread
io_loop = ioloop.IOLoop.instance()
static_path = os.path.join(activity_path, 'web')
instance_path = os.path.join(activity_root, 'instance')
application = web.Application(
[
(r"/web/(.*)", web.StaticFileHandler, {"path": static_path}),
(r"/datastore/(.*)", DatastoreHandler, {"path": instance_path}),
(r"/websocket", JournalWebSocketHandler,
{"instance_path": instance_path, "journal_manager": jm}),
(r"/websocket/upload", WebSocketUploadHandler,
{"instance_path": instance_path, "journal_manager": jm}),
(r"/upload", UploaderHandler, {"instance_path": instance_path,
"static_path": static_path,
"journal_manager": jm
})
])
http_server = httpserver.HTTPServer(application)
http_server.listen(port)
tornado_looop = Thread(target=io_loop.start)
tornado_looop.setDaemon(True)
tornado_looop.start()
logging.error('SERVER STARTED')
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