[downloadable] fix filename in HTTP header (closes #2522325, #2522324)
Before this changeset we use the `filename` header with utf8 encoded filename
all the time.
However RFC6266 says:
The parameters "filename" and "filename*" differ only in that "filename*"
uses the encoding defined in [RFC5987], allowing the use of characters not
present in the ISO-8859-1 character set ([ISO-8859-1]).
Therefore, we alter the code to:
1. Use `filename` and `ascii` encoding whenever possible,
2. use `filename*` with `utf8` encoding otherwise (with a filename fallback for
old browser)
We also switch the `content-disposition` value to attachement if filename is
specified, this will result as a mandatory download according to RFC6266. This
mandatory download is the expected behavior.
We changes the filename encoding to RFC5987 which is simpler, supported by all
and modern browser (including IE from version 6) and does not suffer from the
continuation issue. (see ticket #2522324 for details)
# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""cubicweb-clt handlers for twisted"""
from os.path import join
from logilab.common.shellutils import rm
from cubicweb.toolsutils import CommandHandler
from cubicweb.web.webctl import WebCreateHandler
# trigger configuration registration
import cubicweb.etwist.twconfig # pylint: disable=W0611
class TWCreateHandler(WebCreateHandler):
cfgname = 'twisted'
class TWStartHandler(CommandHandler):
cmdname = 'start'
cfgname = 'twisted'
def start_server(self, config):
from cubicweb.etwist import server
config.info('clear ui caches')
for cachedir in ('uicache', 'uicachehttps'):
rm(join(config.appdatahome, cachedir, '*'))
return server.run(config)
class TWStopHandler(CommandHandler):
cmdname = 'stop'
cfgname = 'twisted'
def poststop(self):
pass
try:
from cubicweb.server import serverctl
class AllInOneCreateHandler(serverctl.RepositoryCreateHandler,
TWCreateHandler):
"""configuration to get an instance running in a twisted web server
integrating a repository server in the same process
"""
cfgname = 'all-in-one'
def bootstrap(self, cubes, automatic=False, inputlevel=0):
"""bootstrap this configuration"""
serverctl.RepositoryCreateHandler.bootstrap(self, cubes, automatic, inputlevel)
TWCreateHandler.bootstrap(self, cubes, automatic, inputlevel)
class AllInOneStartHandler(TWStartHandler):
cmdname = 'start'
cfgname = 'all-in-one'
subcommand = 'cubicweb-twisted'
class AllInOneStopHandler(serverctl.RepositoryStopHandler):
cmdname = 'stop'
cfgname = 'all-in-one'
subcommand = 'cubicweb-twisted'
except ImportError:
pass