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annotate roundup/mailer.py @ 3944:7c886f83c2ab

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Don't try to call time.tzset if it doesn't exist A not terribly elegant solution to issue [SF#825643] which pointed out that the current code fails horribly on Windows :(
author Justus Pendleton <jpend@users.sourceforge.net>
date Wed, 14 Nov 2007 05:53:20 +0000
parents 82f462d9ad16
children 48457385bf61
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1 """Sending Roundup-specific mail over SMTP.
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2 """
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3 __docformat__ = 'restructuredtext'
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4 # $Id: mailer.py,v 1.21 2007-11-14 05:53:20 jpend Exp $
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5
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6 import time, quopri, os, socket, smtplib, re, sys, traceback
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7
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8 from cStringIO import StringIO
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9 from MimeWriter import MimeWriter
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10
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11 from roundup.rfc2822 import encode_header
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12 from roundup import __version__
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13 from roundup.date import get_timezone
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14
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15 try:
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16 from email.Utils import formatdate
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17 except ImportError:
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18 def formatdate():
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19 return time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime())
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20
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21 class MessageSendError(RuntimeError):
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22 pass
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23
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24 class Mailer:
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25 """Roundup-specific mail sending."""
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26 def __init__(self, config):
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27 self.config = config
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28
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29 # set to indicate to roundup not to actually _send_ email
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30 # this var must contain a file to write the mail to
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31 self.debug = os.environ.get('SENDMAILDEBUG', '') \
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32 or config["MAIL_DEBUG"]
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33
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34 # set timezone so that things like formatdate(localtime=True)
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35 # use the configured timezone
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36 # apparently tzset doesn't exist in python under Windows, my bad.
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37 # my pathetic attempts at googling a Windows-solution failed
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38 # so if you're on Windows your mail won't use your configured
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39 # timezone.
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40 if hasattr(time, 'tzset'):
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41 os.environ['TZ'] = get_timezone(self.config.TIMEZONE).tzname(None)
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42 time.tzset()
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43
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44 def get_standard_message(self, to, subject, author=None):
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45 '''Form a standard email message from Roundup.
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46
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47 "to" - recipients list
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48 "subject" - Subject
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49 "author" - (name, address) tuple or None for admin email
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50
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51 Subject and author are encoded using the EMAIL_CHARSET from the
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52 config (default UTF-8).
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53
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54 Returns a Message object and body part writer.
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55 '''
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56 # encode header values if they need to be
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57 charset = getattr(self.config, 'EMAIL_CHARSET', 'utf-8')
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58 tracker_name = self.config.TRACKER_NAME
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59 if charset != 'utf-8':
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60 tracker = unicode(tracker_name, 'utf-8').encode(charset)
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61 if not author:
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62 author = straddr((tracker_name, self.config.ADMIN_EMAIL))
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63 else:
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64 name = author[0]
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65 if charset != 'utf-8':
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66 name = unicode(name, 'utf-8').encode(charset)
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67 author = straddr((encode_header(name, charset), author[1]))
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68
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69 message = StringIO()
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70 writer = MimeWriter(message)
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71 writer.addheader('Subject', encode_header(subject, charset))
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72 writer.addheader('To', ', '.join(to))
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73 writer.addheader('From', author)
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74 writer.addheader('Date', formatdate(localtime=True))
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75
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76 # Add a unique Roundup header to help filtering
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77 writer.addheader('X-Roundup-Name', encode_header(tracker_name,
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78 charset))
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79 # and another one to avoid loops
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80 writer.addheader('X-Roundup-Loop', 'hello')
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81 # finally, an aid to debugging problems
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82 writer.addheader('X-Roundup-Version', __version__)
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83
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84 writer.addheader('MIME-Version', '1.0')
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85
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86 return message, writer
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87
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88 def standard_message(self, to, subject, content, author=None):
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89 """Send a standard message.
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90
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91 Arguments:
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92 - to: a list of addresses usable by rfc822.parseaddr().
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93 - subject: the subject as a string.
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94 - content: the body of the message as a string.
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95 - author: the sender as a (name, address) tuple
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96 """
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97 message, writer = self.get_standard_message(to, subject, author)
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98
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99 writer.addheader('Content-Transfer-Encoding', 'quoted-printable')
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100 body = writer.startbody('text/plain; charset=utf-8')
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101 content = StringIO(content)
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102 quopri.encode(content, body, 0)
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103
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104 self.smtp_send(to, message)
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105
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106 def bounce_message(self, bounced_message, to, error,
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107 subject='Failed issue tracker submission'):
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108 """Bounce a message, attaching the failed submission.
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109
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110 Arguments:
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111 - bounced_message: an RFC822 Message object.
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112 - to: a list of addresses usable by rfc822.parseaddr(). Might be
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113 extended or overridden according to the config
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114 ERROR_MESSAGES_TO setting.
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115 - error: the reason of failure as a string.
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116 - subject: the subject as a string.
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117
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118 """
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119 # see whether we should send to the dispatcher or not
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120 dispatcher_email = getattr(self.config, "DISPATCHER_EMAIL",
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121 getattr(self.config, "ADMIN_EMAIL"))
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122 error_messages_to = getattr(self.config, "ERROR_MESSAGES_TO", "user")
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123 if error_messages_to == "dispatcher":
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124 to = [dispatcher_email]
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125 elif error_messages_to == "both":
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126 to.append(dispatcher_email)
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127
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128 message, writer = self.get_standard_message(to, subject)
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129
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130 part = writer.startmultipartbody('mixed')
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131 part = writer.nextpart()
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
132 part.addheader('Content-Transfer-Encoding', 'quoted-printable')
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
133 body = part.startbody('text/plain; charset=utf-8')
3516
fe75b55fc49d fix encoding of subject in generated error message [SF#1414465]
Richard Jones <richard@users.sourceforge.net>
parents: 3482
diff changeset
134 body.write(quopri.encodestring ('\n'.join(error)))
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
135
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
136 # attach the original message to the returned message
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
137 part = writer.nextpart()
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
138 part.addheader('Content-Disposition', 'attachment')
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
139 part.addheader('Content-Description', 'Message you sent')
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
140 body = part.startbody('text/plain')
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
141
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
142 for header in bounced_message.headers:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
143 body.write(header)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
144 body.write('\n')
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
145 try:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
146 bounced_message.rewindbody()
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
147 except IOError, message:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
148 body.write("*** couldn't include message body: %s ***"
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
149 % bounced_message)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
150 else:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
151 body.write(bounced_message.fp.read())
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
152
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
153 writer.lastpart()
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
154
3667
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
155 try:
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
156 self.smtp_send(to, message)
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
157 except MessageSendError:
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
158 # squash mail sending errors when bouncing mail
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
159 # TODO this *could* be better, as we could notify admin of the
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
160 # problem (even though the vast majority of bounce errors are
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
161 # because of spam)
35811df7c783 fix error during mailgw bouncing message [SF#1413501]
Richard Jones <richard@users.sourceforge.net>
parents: 3572
diff changeset
162 pass
2626
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
163
3548
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
164 def exception_message(self):
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
165 '''Send a message to the admins with information about the latest
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
166 traceback.
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
167 '''
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
168 subject = '%s: %s'%(self.config.TRACKER_NAME, sys.exc_info()[1])
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
169 to = [self.config.ADMIN_EMAIL]
3569
3954fbcefae5 fix incompatibility with python2.3 [SF#1432602]
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3548
diff changeset
170 content = '\n'.join(traceback.format_exception(*sys.exc_info()))
3548
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
171 self.standard_message(to, subject, content)
61d48244e7a8 login may now be for a single session
Richard Jones <richard@users.sourceforge.net>
parents: 3532
diff changeset
172
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
173 def smtp_send(self, to, message):
1830
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
174 """Send a message over SMTP, using roundup's config.
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
175
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
176 Arguments:
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
177 - to: a list of addresses usable by rfc822.parseaddr().
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
178 - message: a StringIO instance with a full message.
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
179 """
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
180 if self.debug:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
181 # don't send - just write to a file
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
182 open(self.debug, 'a').write('FROM: %s\nTO: %s\n%s\n' %
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
183 (self.config.ADMIN_EMAIL,
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
184 ', '.join(to),
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
185 message.getvalue()))
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
186 else:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
187 # now try to send the message
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
188 try:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
189 # send the message as admin so bounces are sent there
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
190 # instead of to roundup
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
191 smtp = SMTPConnection(self.config)
1830
4ac11e7fa11a Fix mailer bug [SF#817470]...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents: 1803
diff changeset
192 smtp.sendmail(self.config.ADMIN_EMAIL, to,
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
193 message.getvalue())
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
194 except socket.error, value:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
195 raise MessageSendError("Error: couldn't send email: "
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
196 "mailhost %s"%value)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
197 except smtplib.SMTPException, msg:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
198 raise MessageSendError("Error: couldn't send email: %s"%msg)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
199
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
200 class SMTPConnection(smtplib.SMTP):
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
201 ''' Open an SMTP connection to the mailhost specified in the config
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
202 '''
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
203 def __init__(self, config):
3878
6d14a3b4e295 allow admin to specify port and local hostname for SMTP connections
Justus Pendleton <jpend@users.sourceforge.net>
parents: 3667
diff changeset
204 smtplib.SMTP.__init__(self, config.MAILHOST, port=config['MAIL_PORT'],
6d14a3b4e295 allow admin to specify port and local hostname for SMTP connections
Justus Pendleton <jpend@users.sourceforge.net>
parents: 3667
diff changeset
205 local_hostname=config['MAIL_LOCAL_HOSTNAME'])
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
206
2626
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
207 # start the TLS if requested
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
208 if config["MAIL_TLS"]:
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
209 self.starttls(config["MAIL_TLS_KEYFILE"],
3572
a052781093d7 fix typo in SMTP TLS option name: "MAIL_TLS_CERFILE" [SF#1435452]
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3569
diff changeset
210 config["MAIL_TLS_CERTFILE"])
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
211
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
212 # ok, now do we also need to log in?
2626
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
213 mailuser = config["MAIL_USERNAME"]
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
214 if mailuser:
2626
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
215 self.login(mailuser, config["MAIL_PASSWORD"])
1799
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
216
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
217 # use the 'email' module, either imported, or our copied version
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
218 try :
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
219 from email.Utils import formataddr as straddr
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
220 except ImportError :
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
221 # code taken from the email package 2.4.3
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
222 def straddr(pair, specialsre = re.compile(r'[][\()<>@,:;".]'),
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
223 escapesre = re.compile(r'[][\()"]')):
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
224 name, address = pair
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
225 if name:
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
226 quotes = ''
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
227 if specialsre.search(name):
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
228 quotes = '"'
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
229 name = escapesre.sub(r'\\\g<0>', name)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
230 return '%s%s%s <%s>' % (quotes, name, quotes, address)
071ea6fc803f Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
diff changeset
231 return address
2626
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
232
e49e6c7b14fb fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2124
diff changeset
233 # vim: set et sts=4 sw=4 :
Roundup Issue Tracker: http://roundup-tracker.org/