# Copyright (C) 2007-2010 Canonical Ltd # # 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 Street, Fifth Floor, Boston, MA 02110-1301 USA from __future__ import absolute_import import errno import os import subprocess import sys import tempfile import bzrlib from bzrlib import ( config as _mod_config, email_message, errors, msgeditor, osutils, urlutils, registry ) mail_client_registry = registry.Registry() class MailClient(object): """A mail client that can send messages with attachements.""" def __init__(self, config): self.config = config def compose(self, prompt, to, subject, attachment, mime_subtype, extension, basename=None, body=None): """Compose (and possibly send) an email message Must be implemented by subclasses. :param prompt: A message to tell the user what to do. Supported by the Editor client, but ignored by others :param to: The address to send the message to :param subject: The contents of the subject line :param attachment: An email attachment, as a bytestring :param mime_subtype: The attachment is assumed to be a subtype of Text. This allows the precise subtype to be specified, e.g. "plain", "x-patch", etc. :param extension: The file extension associated with the attachment type, e.g. ".patch" :param basename: The name to use for the attachment, e.g. "send-nick-3252" """ raise NotImplementedError def compose_merge_request(self, to, subject, directive, basename=None, body=None): """Compose (and possibly send) a merge request :param to: The address to send the request to :param subject: The subject line to use for the request :param directive: A merge directive representing the merge request, as a bytestring. :param basename: The name to use for the attachment, e.g. "send-nick-3252" """ prompt = self._get_merge_prompt("Please describe these changes:", to, subject, directive) self.compose(prompt, to, subject, directive, 'x-patch', '.patch', basename, body) def _get_merge_prompt(self, prompt, to, subject, attachment): """Generate a prompt string. Overridden by Editor. :param prompt: A string suggesting what user should do :param to: The address the mail will be sent to :param subject: The subject line of the mail :param attachment: The attachment that will be used """ return '' class Editor(MailClient): __doc__ = """DIY mail client that uses commit message editor""" supports_body = True def _get_merge_prompt(self, prompt, to, subject, attachment): """See MailClient._get_merge_prompt""" return (u"%s\n\n" u"To: %s\n" u"Subject: %s\n\n" u"%s" % (prompt, to, subject, attachment.decode('utf-8', 'replace'))) def compose(self, prompt, to, subject, attachment, mime_subtype, extension, basename=None, body=None): """See MailClient.compose""" if not to: raise errors.NoMailAddressSpecified() body = msgeditor.edit_commit_message(prompt, start_message=body) if body == '': raise errors.NoMessageSupplied() email_message.EmailMessage.send(self.config, self.config.get('email'), to, subject, body, attachment, attachment_mime_subtype=mime_subtype) mail_client_registry.register('editor', Editor, help=Editor.__doc__) class BodyExternalMailClient(MailClient): supports_body = True def _get_client_commands(self): """Provide a list of commands that may invoke the mail client""" if sys.platform == 'win32': import win32utils return [win32utils.get_app_path(i) for i in self._client_commands] else: return self._client_commands def compose(self, prompt, to, subject, attachment, mime_subtype, extension, basename=None, body=None): """See MailClient.compose. Writes the attachment to a temporary file, invokes _compose. """ if basename is None: basename = 'attachment' pathname = osutils.mkdtemp(prefix='bzr-mail-') attach_path = osutils.pathjoin(pathname, basename + extension) outfile = open(attach_path, 'wb') try: outfile.write(attachment) finally: outfile.close() if body is not None: kwargs = {'body': body} else: kwargs = {} self._compose(prompt, to, subject, attach_path, mime_subtype, extension, **kwargs) def _compose(self, prompt, to, subject, attach_path, mime_subtype, extension, body=None, from_=None): """Invoke a mail client as a commandline process. Overridden by MAPIClient. :param to: The address to send the mail to :param subject: The subject line for the mail :param pathname: The path to the attachment :param mime_subtype: The attachment is assumed to have a major type of "text", but the precise subtype can be specified here :param extension: A file extension (including period) associated with the attachment type. :param body: Optional body text. :param from_: Optional From: header. """ for name in self._get_client_commands(): cmdline = [self._encode_path(name, 'executable')] if body is not None: kwargs = {'body': body} else: kwargs = {} if from_ is not None: kwargs['from_'] = from_ cmdline.extend(self._get_compose_commandline(to, subject, attach_path, **kwargs)) try: subprocess.call(cmdline) except OSError, e: if e.errno != errno.ENOENT: raise else: break else: raise errors.MailClientNotFound(self._client_commands) def _get_compose_commandline(self, to, subject, attach_path, body): """Determine the commandline to use for composing a message Implemented by various subclasses :param to: The address to send the mail to :param subject: The subject line for the mail :param attach_path: The path to the attachment """ raise NotImplementedError def _encode_safe(self, u): """Encode possible unicode string argument to 8-bit string in user_encoding. Unencodable characters will be replaced with '?'. :param u: possible unicode string. :return: encoded string if u is unicode, u itself otherwise. """ if isinstance(u, unicode): return u.encode(osutils.get_user_encoding(), 'replace') return u def _encode_path(self, path, kind): """Encode unicode path in user encoding. :param path: possible unicode path. :param kind: path kind ('executable' or 'attachment'). :return: encoded path if path is unicode, path itself otherwise. :raise: UnableEncodePath. """ if isinstance(path, unicode): try: return path.encode(osutils.get_user_encoding()) except UnicodeEncodeError: raise errors.UnableEncodePath(path, kind) return path class ExternalMailClient(BodyExternalMailClient): __doc__ = """An external mail client.""" supports_body = False class Evolution(BodyExternalMailClient): __doc__ = """Evolution mail client.""" _client_commands = ['evolution'] def _get_compose_commandline(self, to, subject, attach_path, body=None): """See ExternalMailClient._get_compose_commandline""" message_options = {} if subject is not None: message_options['subject'] = subject if attach_path is not None: message_options['attach'] = attach_path if body is not None: message_options['body'] = body options_list = ['%s=%s' % (k, urlutils.escape(v)) for (k, v) in sorted(message_options.iteritems())] return ['mailto:%s?%s' % (self._encode_safe(to or ''), '&'.join(options_list))] mail_client_registry.register('evolution', Evolution, help=Evolution.__doc__) class Mutt(BodyExternalMailClient): __doc__ = """Mutt mail client.""" _client_commands = ['mutt'] def _get_compose_commandline(self, to, subject, attach_path, body=None): """See ExternalMailClient._get_compose_commandline""" message_options = [] if subject is not None: message_options.extend(['-s', self._encode_safe(subject)]) if attach_path is not None: message_options.extend(['-a', self._encode_path(attach_path, 'attachment')]) if body is not None: # Store the temp file object in self, so that it does not get # garbage collected and delete the file before mutt can read it. self._temp_file = tempfile.NamedTemporaryFile( prefix="mutt-body-", suffix=".txt") self._temp_file.write(body) self._temp_file.flush() message_options.extend(['-i', self._temp_file.name]) if to is not None: message_options.extend(['--', self._encode_safe(to)]) return message_options mail_client_registry.register('mutt', Mutt, help=Mutt.__doc__) class Thunderbird(BodyExternalMailClient): __doc__ = """Mozilla Thunderbird (or Icedove) Note that Thunderbird 1.5 is buggy and does not support setting "to" simultaneously with including a attachment. There is a workaround if no attachment is present, but we always need to send attachments. """ _client_commands = ['thunderbird', 'mozilla-thunderbird', 'icedove', '/Applications/Mozilla/Thunderbird.app/Contents/MacOS/thunderbird-bin', '/Applications/Thunderbird.app/Contents/MacOS/thunderbird-bin'] def _get_compose_commandline(self, to, subject, attach_path, body=None): """See ExternalMailClient._get_compose_commandline""" message_options = {} if to is not None: message_options['to'] = self._encode_safe(to) if subject is not None: message_options['subject'] = self._encode_safe(subject) if attach_path is not None: message_options['attachment'] = urlutils.local_path_to_url( attach_path) if body is not None: options_list = ['body=%s' % urlutils.quote(self._encode_safe(body))] else: options_list = [] options_list.extend(["%s='%s'" % (k, v) for k, v in sorted(message_options.iteritems())]) return ['-compose', ','.join(options_list)] mail_client_registry.register('thunderbird', Thunderbird, help=Thunderbird.__doc__) class KMail(ExternalMailClient): __doc__ = """KDE mail client.""" _client_commands = ['kmail'] def _get_compose_commandline(self, to, subject, attach_path): """See ExternalMailClient._get_compose_commandline""" message_options = [] if subject is not None: message_options.extend(['-s', self._encode_safe(subject)]) if attach_path is not None: message_options.extend(['--attach', self._encode_path(attach_path, 'attachment')]) if to is not None: message_options.extend([self._encode_safe(to)]) return message_options mail_client_registry.register('kmail', KMail, help=KMail.__doc__) class Claws(ExternalMailClient): __doc__ = """Claws mail client.""" supports_body = True _client_commands = ['claws-mail'] def _get_compose_commandline(self, to, subject, attach_path, body=None, from_=None): """See ExternalMailClient._get_compose_commandline""" compose_url = [] if from_ is not None: compose_url.append('from=' + urlutils.quote(from_)) if subject is not None: # Don't use urlutils.quote_plus because Claws doesn't seem # to recognise spaces encoded as "+". compose_url.append( 'subject=' + urlutils.quote(self._encode_safe(subject))) if body is not None: compose_url.append( 'body=' + urlutils.quote(self._encode_safe(body))) # to must be supplied for the claws-mail --compose syntax to work. if to is None: raise errors.NoMailAddressSpecified() compose_url = 'mailto:%s?%s' % ( self._encode_safe(to), '&'.join(compose_url)) # Collect command-line options. message_options = ['--compose', compose_url] if attach_path is not None: message_options.extend( ['--attach', self._encode_path(attach_path, 'attachment')]) return message_options def _compose(self, prompt, to, subject, attach_path, mime_subtype, extension, body=None, from_=None): """See ExternalMailClient._compose""" if from_ is None: from_ = self.config.get('email') super(Claws, self)._compose(prompt, to, subject, attach_path, mime_subtype, extension, body, from_) mail_client_registry.register('claws', Claws, help=Claws.__doc__) class XDGEmail(BodyExternalMailClient): __doc__ = """xdg-email attempts to invoke the user's preferred mail client""" _client_commands = ['xdg-email'] def _get_compose_commandline(self, to, subject, attach_path, body=None): """See ExternalMailClient._get_compose_commandline""" if not to: raise errors.NoMailAddressSpecified() commandline = [self._encode_safe(to)] if subject is not None: commandline.extend(['--subject', self._encode_safe(subject)]) if attach_path is not None: commandline.extend(['--attach', self._encode_path(attach_path, 'attachment')]) if body is not None: commandline.extend(['--body', self._encode_safe(body)]) return commandline mail_client_registry.register('xdg-email', XDGEmail, help=XDGEmail.__doc__) class EmacsMail(ExternalMailClient): __doc__ = """Call emacsclient to have a mail buffer. This only work for emacs >= 22.1 due to recent -e/--eval support. The good news is that this implementation will work with all mail agents registered against ``mail-user-agent``. So there is no need to instantiate ExternalMailClient for each and every GNU Emacs MUA. Users just have to ensure that ``mail-user-agent`` is set according to their tastes. """ _client_commands = ['emacsclient'] def __init__(self, config): super(EmacsMail, self).__init__(config) self.elisp_tmp_file = None def _prepare_send_function(self): """Write our wrapper function into a temporary file. This temporary file will be loaded at runtime in _get_compose_commandline function. This function does not remove the file. That's a wanted behaviour since _get_compose_commandline won't run the send mail function directly but return the eligible command line. Removing our temporary file here would prevent our sendmail function to work. (The file is deleted by some elisp code after being read by Emacs.) """ _defun = r"""(defun bzr-add-mime-att (file) "Attach FILE to a mail buffer as a MIME attachment." (let ((agent mail-user-agent)) (if (and file (file-exists-p file)) (cond ((eq agent 'sendmail-user-agent) (progn (mail-text) (newline) (if (functionp 'etach-attach) (etach-attach file) (mail-attach-file file)))) ((or (eq agent 'message-user-agent) (eq agent 'gnus-user-agent) (eq agent 'mh-e-user-agent)) (progn (mml-attach-file file "text/x-patch" "BZR merge" "inline"))) ((eq agent 'mew-user-agent) (progn (mew-draft-prepare-attachments) (mew-attach-link file (file-name-nondirectory file)) (let* ((nums (mew-syntax-nums)) (syntax (mew-syntax-get-entry mew-encode-syntax nums))) (mew-syntax-set-cd syntax "BZR merge") (mew-encode-syntax-print mew-encode-syntax)) (mew-header-goto-body))) (t (message "Unhandled MUA, report it on bazaar@lists.canonical.com"))) (error "File %s does not exist." file)))) """ fd, temp_file = tempfile.mkstemp(prefix="emacs-bzr-send-", suffix=".el") try: os.write(fd, _defun) finally: os.close(fd) # Just close the handle but do not remove the file. return temp_file def _get_compose_commandline(self, to, subject, attach_path): commandline = ["--eval"] _to = "nil" _subject = "nil" if to is not None: _to = ("\"%s\"" % self._encode_safe(to).replace('"', '\\"')) if subject is not None: _subject = ("\"%s\"" % self._encode_safe(subject).replace('"', '\\"')) # Funcall the default mail composition function # This will work with any mail mode including default mail-mode # User must tweak mail-user-agent variable to tell what function # will be called inside compose-mail. mail_cmd = "(compose-mail %s %s)" % (_to, _subject) commandline.append(mail_cmd) # Try to attach a MIME attachment using our wrapper function if attach_path is not None: # Do not create a file if there is no attachment elisp = self._prepare_send_function() self.elisp_tmp_file = elisp lmmform = '(load "%s")' % elisp mmform = '(bzr-add-mime-att "%s")' % \ self._encode_path(attach_path, 'attachment') rmform = '(delete-file "%s")' % elisp commandline.append(lmmform) commandline.append(mmform) commandline.append(rmform) return commandline mail_client_registry.register('emacsclient', EmacsMail, help=EmacsMail.__doc__) class MAPIClient(BodyExternalMailClient): __doc__ = """Default Windows mail client launched using MAPI.""" def _compose(self, prompt, to, subject, attach_path, mime_subtype, extension, body=None): """See ExternalMailClient._compose. This implementation uses MAPI via the simplemapi ctypes wrapper """ from bzrlib.util import simplemapi try: simplemapi.SendMail(to or '', subject or '', body or '', attach_path) except simplemapi.MAPIError, e: if e.code != simplemapi.MAPI_USER_ABORT: raise errors.MailClientNotFound(['MAPI supported mail client' ' (error %d)' % (e.code,)]) mail_client_registry.register('mapi', MAPIClient, help=MAPIClient.__doc__) class MailApp(BodyExternalMailClient): __doc__ = """Use MacOS X's Mail.app for sending email messages. Although it would be nice to use appscript, it's not installed with the shipped Python installations. We instead build an AppleScript and invoke the script using osascript(1). We don't use the _encode_safe() routines as it's not clear what encoding osascript expects the script to be in. """ _client_commands = ['osascript'] def _get_compose_commandline(self, to, subject, attach_path, body=None, from_=None): """See ExternalMailClient._get_compose_commandline""" fd, self.temp_file = tempfile.mkstemp(prefix="bzr-send-", suffix=".scpt") try: os.write(fd, 'tell application "Mail"\n') os.write(fd, 'set newMessage to make new outgoing message\n') os.write(fd, 'tell newMessage\n') if to is not None: os.write(fd, 'make new to recipient with properties' ' {address:"%s"}\n' % to) if from_ is not None: # though from_ doesn't actually seem to be used os.write(fd, 'set sender to "%s"\n' % sender.replace('"', '\\"')) if subject is not None: os.write(fd, 'set subject to "%s"\n' % subject.replace('"', '\\"')) if body is not None: # FIXME: would be nice to prepend the body to the # existing content (e.g., preserve signature), but # can't seem to figure out the right applescript # incantation. os.write(fd, 'set content to "%s\\n\n"\n' % body.replace('"', '\\"').replace('\n', '\\n')) if attach_path is not None: # FIXME: would be nice to first append a newline to # ensure the attachment is on a new paragraph, but # can't seem to figure out the right applescript # incantation. os.write(fd, 'tell content to make new attachment' ' with properties {file name:"%s"}' ' at after the last paragraph\n' % self._encode_path(attach_path, 'attachment')) os.write(fd, 'set visible to true\n') os.write(fd, 'end tell\n') os.write(fd, 'end tell\n') finally: os.close(fd) # Just close the handle but do not remove the file. return [self.temp_file] mail_client_registry.register('mail.app', MailApp, help=MailApp.__doc__) class DefaultMail(MailClient): __doc__ = """Default mail handling. Tries XDGEmail (or MAPIClient on Windows), falls back to Editor""" supports_body = True def _mail_client(self): """Determine the preferred mail client for this platform""" if osutils.supports_mapi(): return MAPIClient(self.config) else: return XDGEmail(self.config) def compose(self, prompt, to, subject, attachment, mime_subtype, extension, basename=None, body=None): """See MailClient.compose""" try: return self._mail_client().compose(prompt, to, subject, attachment, mime_subtype, extension, basename, body) except errors.MailClientNotFound: return Editor(self.config).compose(prompt, to, subject, attachment, mime_subtype, extension, body) def compose_merge_request(self, to, subject, directive, basename=None, body=None): """See MailClient.compose_merge_request""" try: return self._mail_client().compose_merge_request(to, subject, directive, basename=basename, body=body) except errors.MailClientNotFound: return Editor(self.config).compose_merge_request(to, subject, directive, basename=basename, body=body) mail_client_registry.register('default', DefaultMail, help=DefaultMail.__doc__) mail_client_registry.default_key = 'default' opt_mail_client = _mod_config.RegistryOption('mail_client', mail_client_registry, help='E-mail client to use.', invalid='error')