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# Copyright (C) 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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mail_client_registry = registry.Registry()
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class MailClient(object):
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"""A mail client that can send messages with attachements."""
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def __init__(self, config):
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def compose(self, prompt, to, subject, attachment, mime_subtype,
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extension, basename=None):
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"""Compose (and possibly send) an email message
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Must be implemented by subclasses.
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:param prompt: A message to tell the user what to do. Supported by
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the Editor client, but ignored by others
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:param to: The address to send the message to
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:param subject: The contents of the subject line
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:param attachment: An email attachment, as a bytestring
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:param mime_subtype: The attachment is assumed to be a subtype of
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Text. This allows the precise subtype to be specified, e.g.
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"plain", "x-patch", etc.
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:param extension: The file extension associated with the attachment
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:param basename: The name to use for the attachment, e.g.
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raise NotImplementedError
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def compose_merge_request(self, to, subject, directive, basename=None):
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"""Compose (and possibly send) a merge request
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:param to: The address to send the request to
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:param subject: The subject line to use for the request
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:param directive: A merge directive representing the merge request, as
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:param basename: The name to use for the attachment, e.g.
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prompt = self._get_merge_prompt("Please describe these changes:", to,
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self.compose(prompt, to, subject, directive,
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'x-patch', '.patch', basename)
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def _get_merge_prompt(self, prompt, to, subject, attachment):
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"""Generate a prompt string. Overridden by Editor.
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:param prompt: A string suggesting what user should do
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:param to: The address the mail will be sent to
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:param subject: The subject line of the mail
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:param attachment: The attachment that will be used
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class Editor(MailClient):
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"""DIY mail client that uses commit message editor"""
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def _get_merge_prompt(self, prompt, to, subject, attachment):
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"""See MailClient._get_merge_prompt"""
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u"%s" % (prompt, to, subject,
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attachment.decode('utf-8', 'replace')))
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def compose(self, prompt, to, subject, attachment, mime_subtype,
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extension, basename=None):
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"""See MailClient.compose"""
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raise errors.NoMailAddressSpecified()
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body = msgeditor.edit_commit_message(prompt)
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raise errors.NoMessageSupplied()
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email_message.EmailMessage.send(self.config,
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self.config.username(),
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attachment_mime_subtype=mime_subtype)
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mail_client_registry.register('editor', Editor,
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class ExternalMailClient(MailClient):
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"""An external mail client."""
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def _get_client_commands(self):
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"""Provide a list of commands that may invoke the mail client"""
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if sys.platform == 'win32':
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return [win32utils.get_app_path(i) for i in self._client_commands]
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return self._client_commands
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def compose(self, prompt, to, subject, attachment, mime_subtype,
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extension, basename=None):
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"""See MailClient.compose.
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Writes the attachment to a temporary file, invokes _compose.
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basename = 'attachment'
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pathname = tempfile.mkdtemp(prefix='bzr-mail-')
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attach_path = osutils.pathjoin(pathname, basename + extension)
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outfile = open(attach_path, 'wb')
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outfile.write(attachment)
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self._compose(prompt, to, subject, attach_path, mime_subtype,
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def _compose(self, prompt, to, subject, attach_path, mime_subtype,
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"""Invoke a mail client as a commandline process.
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Overridden by MAPIClient.
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:param to: The address to send the mail to
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:param subject: The subject line for the mail
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:param pathname: The path to the attachment
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:param mime_subtype: The attachment is assumed to have a major type of
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"text", but the precise subtype can be specified here
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:param extension: A file extension (including period) associated with
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for name in self._get_client_commands():
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cmdline = [self._encode_path(name, 'executable')]
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cmdline.extend(self._get_compose_commandline(to, subject,
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subprocess.call(cmdline)
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if e.errno != errno.ENOENT:
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raise errors.MailClientNotFound(self._client_commands)
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def _get_compose_commandline(self, to, subject, attach_path):
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"""Determine the commandline to use for composing a message
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Implemented by various subclasses
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:param to: The address to send the mail to
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:param subject: The subject line for the mail
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:param attach_path: The path to the attachment
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raise NotImplementedError
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def _encode_safe(self, u):
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"""Encode possible unicode string argument to 8-bit string
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in user_encoding. Unencodable characters will be replaced
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:param u: possible unicode string.
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:return: encoded string if u is unicode, u itself otherwise.
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if isinstance(u, unicode):
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return u.encode(bzrlib.user_encoding, 'replace')
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def _encode_path(self, path, kind):
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"""Encode unicode path in user encoding.
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:param path: possible unicode path.
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:param kind: path kind ('executable' or 'attachment').
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:return: encoded path if path is unicode,
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path itself otherwise.
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:raise: UnableEncodePath.
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if isinstance(path, unicode):
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return path.encode(bzrlib.user_encoding)
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except UnicodeEncodeError:
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raise errors.UnableEncodePath(path, kind)
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class Evolution(ExternalMailClient):
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"""Evolution mail client."""
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_client_commands = ['evolution']
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def _get_compose_commandline(self, to, subject, attach_path):
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"""See ExternalMailClient._get_compose_commandline"""
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if subject is not None:
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message_options['subject'] = subject
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if attach_path is not None:
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message_options['attach'] = attach_path
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options_list = ['%s=%s' % (k, urlutils.escape(v)) for (k, v) in
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sorted(message_options.iteritems())]
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return ['mailto:%s?%s' % (self._encode_safe(to or ''),
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'&'.join(options_list))]
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mail_client_registry.register('evolution', Evolution,
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help=Evolution.__doc__)
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class Mutt(ExternalMailClient):
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"""Mutt mail client."""
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_client_commands = ['mutt']
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def _get_compose_commandline(self, to, subject, attach_path):
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"""See ExternalMailClient._get_compose_commandline"""
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if subject is not None:
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message_options.extend(['-s', self._encode_safe(subject)])
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if attach_path is not None:
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message_options.extend(['-a',
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self._encode_path(attach_path, 'attachment')])
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message_options.append(self._encode_safe(to))
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return message_options
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mail_client_registry.register('mutt', Mutt,
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class Thunderbird(ExternalMailClient):
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"""Mozilla Thunderbird (or Icedove)
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Note that Thunderbird 1.5 is buggy and does not support setting
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"to" simultaneously with including a attachment.
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There is a workaround if no attachment is present, but we always need to
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_client_commands = ['thunderbird', 'mozilla-thunderbird', 'icedove',
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'/Applications/Mozilla/Thunderbird.app/Contents/MacOS/thunderbird-bin',
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'/Applications/Thunderbird.app/Contents/MacOS/thunderbird-bin']
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def _get_compose_commandline(self, to, subject, attach_path):
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"""See ExternalMailClient._get_compose_commandline"""
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message_options['to'] = self._encode_safe(to)
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if subject is not None:
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message_options['subject'] = self._encode_safe(subject)
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if attach_path is not None:
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message_options['attachment'] = urlutils.local_path_to_url(
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options_list = ["%s='%s'" % (k, v) for k, v in
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sorted(message_options.iteritems())]
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return ['-compose', ','.join(options_list)]
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mail_client_registry.register('thunderbird', Thunderbird,
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help=Thunderbird.__doc__)
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class KMail(ExternalMailClient):
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"""KDE mail client."""
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_client_commands = ['kmail']
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def _get_compose_commandline(self, to, subject, attach_path):
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"""See ExternalMailClient._get_compose_commandline"""
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if subject is not None:
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message_options.extend(['-s', self._encode_safe(subject)])
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if attach_path is not None:
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message_options.extend(['--attach',
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self._encode_path(attach_path, 'attachment')])
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message_options.extend([self._encode_safe(to)])
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return message_options
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mail_client_registry.register('kmail', KMail,
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class XDGEmail(ExternalMailClient):
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"""xdg-email attempts to invoke the user's preferred mail client"""
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_client_commands = ['xdg-email']
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def _get_compose_commandline(self, to, subject, attach_path):
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"""See ExternalMailClient._get_compose_commandline"""
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raise errors.NoMailAddressSpecified()
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commandline = [self._encode_safe(to)]
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if subject is not None:
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commandline.extend(['--subject', self._encode_safe(subject)])
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if attach_path is not None:
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commandline.extend(['--attach',
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self._encode_path(attach_path, 'attachment')])
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mail_client_registry.register('xdg-email', XDGEmail,
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help=XDGEmail.__doc__)
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class EmacsMail(ExternalMailClient):
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"""Call emacsclient to have a mail buffer.
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This only work for emacs >= 22.1 due to recent -e/--eval support.
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The good news is that this implementation will work with all mail
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agents registered against ``mail-user-agent``. So there is no need
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to instantiate ExternalMailClient for each and every GNU Emacs
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Users just have to ensure that ``mail-user-agent`` is set according
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_client_commands = ['emacsclient']
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def _prepare_send_function(self):
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"""Write our wrapper function into a temporary file.
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This temporary file will be loaded at runtime in
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_get_compose_commandline function.
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This function does not remove the file. That's a wanted
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behaviour since _get_compose_commandline won't run the send
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mail function directly but return the eligible command line.
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Removing our temporary file here would prevent our sendmail
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function to work. (The file is deleted by some elisp code
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after being read by Emacs.)
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_defun = r"""(defun bzr-add-mime-att (file)
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"Attach FILE to a mail buffer as a MIME attachment."
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(let ((agent mail-user-agent))
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(if (and file (file-exists-p file))
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((eq agent 'sendmail-user-agent)
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(if (functionp 'etach-attach)
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(mail-attach-file file))))
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((or (eq agent 'message-user-agent)(eq agent 'gnus-user-agent))
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(mml-attach-file file "text/x-patch" "BZR merge" "inline")))
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((eq agent 'mew-user-agent)
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(mew-draft-prepare-attachments)
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(mew-attach-link file (file-name-nondirectory file))
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(let* ((nums (mew-syntax-nums))
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(syntax (mew-syntax-get-entry mew-encode-syntax nums)))
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(mew-syntax-set-cd syntax "BZR merge")
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(mew-encode-syntax-print mew-encode-syntax))
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(mew-header-goto-body)))
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(message "Unhandled MUA, report it on bazaar@lists.canonical.com")))
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(error "File %s does not exist." file))))
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fd, temp_file = tempfile.mkstemp(prefix="emacs-bzr-send-",
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os.close(fd) # Just close the handle but do not remove the file.
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def _get_compose_commandline(self, to, subject, attach_path):
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commandline = ["--eval"]
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_to = ("\"%s\"" % self._encode_safe(to).replace('"', '\\"'))
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if subject is not None:
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_subject = ("\"%s\"" %
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self._encode_safe(subject).replace('"', '\\"'))
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# Funcall the default mail composition function
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# This will work with any mail mode including default mail-mode
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# User must tweak mail-user-agent variable to tell what function
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# will be called inside compose-mail.
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mail_cmd = "(compose-mail %s %s)" % (_to, _subject)
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commandline.append(mail_cmd)
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# Try to attach a MIME attachment using our wrapper function
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if attach_path is not None:
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# Do not create a file if there is no attachment
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elisp = self._prepare_send_function()
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lmmform = '(load "%s")' % elisp
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mmform = '(bzr-add-mime-att "%s")' % \
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self._encode_path(attach_path, 'attachment')
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rmform = '(delete-file "%s")' % elisp
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commandline.append(lmmform)
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commandline.append(mmform)
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commandline.append(rmform)
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mail_client_registry.register('emacsclient', EmacsMail,
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help=EmacsMail.__doc__)
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class MAPIClient(ExternalMailClient):
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"""Default Windows mail client launched using MAPI."""
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def _compose(self, prompt, to, subject, attach_path, mime_subtype,
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"""See ExternalMailClient._compose.
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This implementation uses MAPI via the simplemapi ctypes wrapper
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from bzrlib.util import simplemapi
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simplemapi.SendMail(to or '', subject or '', '', attach_path)
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except simplemapi.MAPIError, e:
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if e.code != simplemapi.MAPI_USER_ABORT:
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raise errors.MailClientNotFound(['MAPI supported mail client'
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' (error %d)' % (e.code,)])
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mail_client_registry.register('mapi', MAPIClient,
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help=MAPIClient.__doc__)
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class DefaultMail(MailClient):
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"""Default mail handling. Tries XDGEmail (or MAPIClient on Windows),
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falls back to Editor"""
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def _mail_client(self):
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"""Determine the preferred mail client for this platform"""
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if osutils.supports_mapi():
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return MAPIClient(self.config)
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return XDGEmail(self.config)
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def compose(self, prompt, to, subject, attachment, mime_subtype,
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extension, basename=None):
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"""See MailClient.compose"""
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return self._mail_client().compose(prompt, to, subject,
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attachment, mimie_subtype,
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except errors.MailClientNotFound:
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return Editor(self.config).compose(prompt, to, subject,
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attachment, mimie_subtype, extension)
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def compose_merge_request(self, to, subject, directive, basename=None):
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"""See MailClient.compose_merge_request"""
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return self._mail_client().compose_merge_request(to, subject,
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directive, basename=basename)
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except errors.MailClientNotFound:
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return Editor(self.config).compose_merge_request(to, subject,
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directive, basename=basename)
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mail_client_registry.register('default', DefaultMail,
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help=DefaultMail.__doc__)
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mail_client_registry.default_key = 'default'
added
removed
bzrlib/mail_client.py
