[py3] Pass bytes as "msg" to smtplib.SMTP.sendmail()
When passing a unicode string to smtplib.SMTP.sendmail() as "msg"
argument, there is an implicit bytes encoding using "ascii" encoding in
python3. Of course this does not work if the string contains non-ASCII
characters. In fact, config's sendmails method intent to pass bytes to
smtplib.SMTP.sendmail() as it uses msg.as_string() method.
Unfortunately, in python3, this method returns a unicode string whereas
it returns a bytes string in python2; we thus fix this by calling
as_bytes() method on python3.
As there is no "as_bytes" method in python2, we need to handle python2
compatibility by hand and either call as_string() or as_bytes().
In testlib, where we mock smtplib.SMTP, we need to keep the "msg"
argument of Email class (defined in testlib as well) a unicode string.
Otherwise, it fails to be parsed by email.message_from_string() (from
stdlib) if it is bytes on python3.
"""twisted server for CubicWeb web instances
:organization: Logilab
:copyright: 2001-2011 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
class HTTPResponse(object):
"""An object representing an HTTP Response to be sent to the client.
"""
def __init__(self, twisted_request, code=None, headers=None, stream=None):
self._headers_out = headers
self._twreq = twisted_request
self._stream = stream
self._code = code
self._init_headers()
self._finalize()
def _init_headers(self):
if self._headers_out is None:
return
# initialize headers
for k, values in self._headers_out.getAllRawHeaders():
self._twreq.responseHeaders.setRawHeaders(k, values)
# add content-length if not present
if (self._headers_out.getHeader('content-length') is None
and self._stream is not None):
self._twreq.setHeader('content-length', len(self._stream))
def _finalize(self):
# cw_failed is set on errors such as "connection aborted by client". In
# such cases, req.finish() was already called and calling it a twice
# would crash
if getattr(self._twreq, 'cw_failed', False):
return
# we must set code before writing anything, else it's too late
if self._code is not None:
self._twreq.setResponseCode(self._code)
if self._stream is not None:
self._twreq.write(str(self._stream))
self._twreq.finish()
def __repr__(self):
return "<%s.%s code=%d>" % (self.__module__, self.__class__.__name__, self._code)