Mercurial > p > roundup > code
annotate roundup/mailer.py @ 3975:48457385bf61
Send a Precedence header in email so autoresponders don't
| author | Richard Jones <richard@users.sourceforge.net> |
|---|---|
| date | Mon, 21 Jul 2008 01:44:58 +0000 |
| parents | 7c886f83c2ab |
| children | 4b0ddce43d08 |
| rev | line source |
|---|---|
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2005
fc52d57c6c3e
documentation cleanup
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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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Send a Precedence header in email so autoresponders don't
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4 # $Id: mailer.py,v 1.22 2008-07-21 01:44:58 richard 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 Precedence header so autoresponders ignore us |
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77 writer.addheader('Precedence', 'bulk') |
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78 |
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79 # Add a unique Roundup header to help filtering |
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80 writer.addheader('X-Roundup-Name', encode_header(tracker_name, |
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81 charset)) |
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82 # and another one to avoid loops |
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83 writer.addheader('X-Roundup-Loop', 'hello') |
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84 # finally, an aid to debugging problems |
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85 writer.addheader('X-Roundup-Version', __version__) |
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86 |
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87 writer.addheader('MIME-Version', '1.0') |
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88 |
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89 return message, writer |
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90 |
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91 def standard_message(self, to, subject, content, author=None): |
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92 """Send a standard message. |
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93 |
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94 Arguments: |
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95 - to: a list of addresses usable by rfc822.parseaddr(). |
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96 - subject: the subject as a string. |
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97 - content: the body of the message as a string. |
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98 - author: the sender as a (name, address) tuple |
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99 """ |
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100 message, writer = self.get_standard_message(to, subject, author) |
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101 |
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102 writer.addheader('Content-Transfer-Encoding', 'quoted-printable') |
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103 body = writer.startbody('text/plain; charset=utf-8') |
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104 content = StringIO(content) |
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105 quopri.encode(content, body, 0) |
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106 |
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107 self.smtp_send(to, message) |
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108 |
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109 def bounce_message(self, bounced_message, to, error, |
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110 subject='Failed issue tracker submission'): |
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111 """Bounce a message, attaching the failed submission. |
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|
112 |
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113 Arguments: |
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114 - bounced_message: an RFC822 Message object. |
|
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|
115 - to: a list of addresses usable by rfc822.parseaddr(). Might be |
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|
116 extended or overridden according to the config |
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|
117 ERROR_MESSAGES_TO setting. |
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118 - error: the reason of failure as a string. |
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119 - subject: the subject as a string. |
|
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|
120 |
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121 """ |
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122 # see whether we should send to the dispatcher or not |
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123 dispatcher_email = getattr(self.config, "DISPATCHER_EMAIL", |
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|
124 getattr(self.config, "ADMIN_EMAIL")) |
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125 error_messages_to = getattr(self.config, "ERROR_MESSAGES_TO", "user") |
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126 if error_messages_to == "dispatcher": |
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127 to = [dispatcher_email] |
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128 elif error_messages_to == "both": |
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129 to.append(dispatcher_email) |
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130 |
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*** empty log message ***
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131 message, writer = self.get_standard_message(to, subject) |
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*** empty log message ***
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132 |
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133 part = writer.startmultipartbody('mixed') |
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134 part = writer.nextpart() |
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135 part.addheader('Content-Transfer-Encoding', 'quoted-printable') |
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136 body = part.startbody('text/plain; charset=utf-8') |
|
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137 body.write(quopri.encodestring ('\n'.join(error))) |
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138 |
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139 # attach the original message to the returned message |
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140 part = writer.nextpart() |
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141 part.addheader('Content-Disposition', 'attachment') |
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142 part.addheader('Content-Description', 'Message you sent') |
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143 body = part.startbody('text/plain') |
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|
144 |
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|
145 for header in bounced_message.headers: |
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|
146 body.write(header) |
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147 body.write('\n') |
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148 try: |
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|
149 bounced_message.rewindbody() |
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150 except IOError, message: |
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|
151 body.write("*** couldn't include message body: %s ***" |
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|
152 % bounced_message) |
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153 else: |
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|
154 body.write(bounced_message.fp.read()) |
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155 |
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|
156 writer.lastpart() |
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157 |
|
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|
158 try: |
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|
159 self.smtp_send(to, message) |
|
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160 except MessageSendError: |
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|
161 # squash mail sending errors when bouncing mail |
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162 # TODO this *could* be better, as we could notify admin of the |
|
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163 # problem (even though the vast majority of bounce errors are |
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164 # because of spam) |
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165 pass |
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|
166 |
|
3548
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|
167 def exception_message(self): |
|
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168 '''Send a message to the admins with information about the latest |
|
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|
169 traceback. |
|
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login may now be for a single session
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|
170 ''' |
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|
171 subject = '%s: %s'%(self.config.TRACKER_NAME, sys.exc_info()[1]) |
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172 to = [self.config.ADMIN_EMAIL] |
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|
173 content = '\n'.join(traceback.format_exception(*sys.exc_info())) |
|
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|
174 self.standard_message(to, subject, content) |
|
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175 |
|
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176 def smtp_send(self, to, message): |
|
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177 """Send a message over SMTP, using roundup's config. |
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178 |
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|
179 Arguments: |
|
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180 - to: a list of addresses usable by rfc822.parseaddr(). |
|
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181 - message: a StringIO instance with a full message. |
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|
182 """ |
|
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|
183 if self.debug: |
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184 # don't send - just write to a file |
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|
185 open(self.debug, 'a').write('FROM: %s\nTO: %s\n%s\n' % |
|
071ea6fc803f
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changeset
|
186 (self.config.ADMIN_EMAIL, |
|
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|
187 ', '.join(to), |
|
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changeset
|
188 message.getvalue())) |
|
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|
189 else: |
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|
190 # now try to send the message |
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|
191 try: |
|
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|
192 # send the message as admin so bounces are sent there |
|
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|
193 # instead of to roundup |
|
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changeset
|
194 smtp = SMTPConnection(self.config) |
|
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|
195 smtp.sendmail(self.config.ADMIN_EMAIL, to, |
|
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changeset
|
196 message.getvalue()) |
|
071ea6fc803f
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|
197 except socket.error, value: |
|
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changeset
|
198 raise MessageSendError("Error: couldn't send email: " |
|
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changeset
|
199 "mailhost %s"%value) |
|
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changeset
|
200 except smtplib.SMTPException, msg: |
|
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changeset
|
201 raise MessageSendError("Error: couldn't send email: %s"%msg) |
|
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changeset
|
202 |
|
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changeset
|
203 class SMTPConnection(smtplib.SMTP): |
|
071ea6fc803f
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changeset
|
204 ''' Open an SMTP connection to the mailhost specified in the config |
|
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parents:
diff
changeset
|
205 ''' |
|
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changeset
|
206 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
|
207 smtplib.SMTP.__init__(self, config.MAILHOST, port=config['MAIL_PORT'], |
|
6d14a3b4e295
allow admin to specify port and local hostname for SMTP connections
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parents:
3667
diff
changeset
|
208 local_hostname=config['MAIL_LOCAL_HOSTNAME']) |
|
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changeset
|
209 |
|
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|
210 # start the TLS if requested |
|
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changeset
|
211 if config["MAIL_TLS"]: |
|
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diff
changeset
|
212 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
|
213 config["MAIL_TLS_CERTFILE"]) |
|
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071ea6fc803f
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diff
changeset
|
214 |
|
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diff
changeset
|
215 # ok, now do we also need to log in? |
|
2626
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fix incompatibilities with new configuration;
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2124
diff
changeset
|
216 mailuser = config["MAIL_USERNAME"] |
|
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parents:
diff
changeset
|
217 if mailuser: |
|
2626
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changeset
|
218 self.login(mailuser, config["MAIL_PASSWORD"]) |
|
1799
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changeset
|
219 |
|
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Extracted duplicated mail-sending code...
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220 # use the 'email' module, either imported, or our copied version |
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221 try : |
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071ea6fc803f
Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
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222 from email.Utils import formataddr as straddr |
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071ea6fc803f
Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
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223 except ImportError : |
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224 # code taken from the email package 2.4.3 |
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225 def straddr(pair, specialsre = re.compile(r'[][\()<>@,:;".]'), |
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071ea6fc803f
Extracted duplicated mail-sending code...
Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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226 escapesre = re.compile(r'[][\()"]')): |
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071ea6fc803f
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Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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227 name, address = pair |
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071ea6fc803f
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Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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228 if name: |
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071ea6fc803f
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229 quotes = '' |
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230 if specialsre.search(name): |
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071ea6fc803f
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Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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231 quotes = '"' |
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Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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232 name = escapesre.sub(r'\\\g<0>', name) |
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071ea6fc803f
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Johannes Gijsbers <jlgijsbers@users.sourceforge.net>
parents:
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233 return '%s%s%s <%s>' % (quotes, name, quotes, address) |
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parents:
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234 return address |
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2626
e49e6c7b14fb
fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
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2124
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235 |
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fix incompatibilities with new configuration;
Alexander Smishlajev <a1s@users.sourceforge.net>
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236 # vim: set et sts=4 sw=4 : |
