~bzr-pqm/bzr/bzr.dev

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
# Copyright (C) 2007 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import errno
import os
import subprocess
import sys
import tempfile

from bzrlib import (
    email_message,
    errors,
    msgeditor,
    osutils,
    urlutils,
    )


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):
        """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"
        """
        raise NotImplementedError

    def compose_merge_request(self, to, subject, directive):
        """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.
        """
        prompt = self._get_merge_prompt("Please describe these changes:", to,
                                        subject, directive)
        self.compose(prompt, to, subject, directive,
            'x-patch', '.patch')

    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):
    """DIY mail client that uses commit message editor"""

    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):
        """See MailClient.compose"""
        body = msgeditor.edit_commit_message(prompt)
        if body == '':
            raise errors.NoMessageSupplied()
        email_message.EmailMessage.send(self.config,
                                        self.config.username(),
                                        to,
                                        subject,
                                        body,
                                        attachment,
                                        attachment_mime_subtype=mime_subtype)


class ExternalMailClient(MailClient):
    """An external mail client."""

    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):
        """See MailClient.compose.

        Writes the attachment to a temporary file, invokes _compose.
        """
        fd, pathname = tempfile.mkstemp(extension, 'bzr-mail-')
        try:
            os.write(fd, attachment)
        finally:
            os.close(fd)
        self._compose(prompt, to, subject, pathname, mime_subtype, extension)

    def _compose(self, prompt, to, subject, attach_path, mime_subtype,
                extension):
        """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.
        """
        for name in self._get_client_commands():
            cmdline = [name]
            cmdline.extend(self._get_compose_commandline(to, subject,
                                                         attach_path))
            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):
        """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


class Evolution(ExternalMailClient):
    """Evolution mail client."""

    _client_commands = ['evolution']

    def _get_compose_commandline(self, to, subject, attach_path):
        """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
        options_list = ['%s=%s' % (k, urlutils.escape(v)) for (k, v) in
                        message_options.iteritems()]
        return ['mailto:%s?%s' % (to or '', '&'.join(options_list))]


class Thunderbird(ExternalMailClient):
    """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']

    def _get_compose_commandline(self, to, subject, attach_path):
        """See ExternalMailClient._get_compose_commandline"""
        message_options = {}
        if to is not None:
            message_options['to'] = to
        if subject is not None:
            message_options['subject'] = subject
        if attach_path is not None:
            message_options['attachment'] = urlutils.local_path_to_url(
                attach_path)
        options_list = ["%s='%s'" % (k, v) for k, v in
                        sorted(message_options.iteritems())]
        return ['-compose', ','.join(options_list)]


class KMail(ExternalMailClient):
    """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', subject ] )
        if attach_path is not None:
            message_options.extend( ['--attach', attach_path] )
        if to is not None:
            message_options.extend( [ to ] )

        return message_options


class XDGEmail(ExternalMailClient):
    """xdg-email attempts to invoke the user's preferred mail client"""

    _client_commands = ['xdg-email']

    def _get_compose_commandline(self, to, subject, attach_path):
        """See ExternalMailClient._get_compose_commandline"""
        commandline = [to]
        if subject is not None:
            commandline.extend(['--subject', subject])
        if attach_path is not None:
            commandline.extend(['--attach', attach_path])
        return commandline


class MAPIClient(ExternalMailClient):
    """Default Windows mail client launched using MAPI."""

    def _compose(self, prompt, to, subject, attach_path, mime_subtype,
                 extension):
        """See ExternalMailClient._compose.

        This implementation uses MAPI via the simplemapi ctypes wrapper
        """
        from bzrlib.util import simplemapi
        try:
            simplemapi.SendMail(to or '', subject 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,)])


class DefaultMail(MailClient):
    """Default mail handling.  Tries XDGEmail (or MAPIClient on Windows),
    falls back to Editor"""

    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):
        """See MailClient.compose"""
        try:
            return self._mail_client().compose(prompt, to, subject,
                                               attachment, mimie_subtype,
                                               extension)
        except errors.MailClientNotFound:
            return Editor(self.config).compose(prompt, to, subject,
                          attachment, mimie_subtype, extension)

    def compose_merge_request(self, to, subject, directive):
        """See MailClient.compose_merge_request"""
        try:
            return self._mail_client().compose_merge_request(to, subject,
                                                             directive)
        except errors.MailClientNotFound:
            return Editor(self.config).compose_merge_request(to, subject,
                          directive)