5de621e0098b4dc3bd46862c56d265255b92d7b6
[user/alex/software/my-snippets.git] / mail-merge
1 #!/usr/bin/python
2
3 import csv
4 import email.parser
5 from optparse import OptionParser
6 import os
7 import smtplib
8 import subprocess
9 import sys
10
11
12 sender_header = 'mail-merge-sender@mit.edu'
13 rtkit_path = '/afs/athena.mit.edu/user/a/d/adehnert/arch/common/lib/python/'
14 smtp = None
15
16 def dictize_line(header, line,):
17     line_dict = {}
18     for key, elem in zip(header, line, ):
19         line_dict[key]=elem
20     return line_dict
21
22 def setup_sendmail_smtp():
23     global smtp
24     smtp = smtplib.SMTP()
25     smtp.connect()
26 def sendmail_smtp(addrs, text):
27     global smtp
28     smtp.sendmail(sender_header, addrs, text, )
29 smtp_funcs = (setup_sendmail_smtp, sendmail_smtp, )
30
31 def sendmail_cmd(addrs, text):
32     args = ["/usr/lib/sendmail", "--", ]
33     args.extend(addrs)
34     proc = subprocess.Popen(args, stdin=subprocess.PIPE)
35     proc.communicate(text)
36     if proc.returncode != 0:
37         raise RuntimeError, "sendmail returned %d" % (proc.returncode, )
38 cmd_funcs = (lambda: True, sendmail_cmd)
39
40 setup_sendmail, sendmail = smtp_funcs
41 setup_sendmail, sendmail = cmd_funcs
42
43 def parse_arguments():
44     parser = OptionParser(usage='usage: %prog [options] cc_addr template recipients')
45     parser.add_option('-q', '--rt-queue', dest='rt_queue',
46             help='Automatically create a ticket in queue QUEUE',
47             metavar='QUEUE',
48     )
49     parser.add_option('-o', '--rt-owner', dest='rt_owner',
50             help='Set RT owner and AdminCC to USER',
51             metavar='USER',
52     )
53     parser.add_option('--split', dest='split',
54             help='Split "email" field on SPLIT and send to each recipient',
55             metavar='SPLIT',
56     )
57     (options, args) = parser.parse_args()
58     if len(args) != 3:
59         parser.error("incorrect number of arguments")
60     if options.rt_owner and not options.rt_queue:
61         parser.error("--rt-owner requires specifying a queue")
62     return options, args
63
64 def nop_msg_filter(rcpts, body):
65     return rcpts, body
66
67 def msg_filter_factory(opts):
68     if not opts.rt_queue:
69         return nop_msg_filter
70
71     try:
72         import rtkit.tracker, rtkit.authenticators, rtkit.errors
73     except ImportError:
74         print "Note: using rtkit from %s" % (rtkit_path, )
75         sys.path.append(rtkit_path)
76         import rtkit.tracker, rtkit.authenticators, rtkit.errors
77
78     cookie = rtkit.authenticators.CookieAuthenticator
79     resource = rtkit.resource.RTResource.from_rtrc(cookie)
80     parser = email.parser.Parser()
81
82     def filter_rt(rcpts, body, ):
83         msg = parser.parsestr(body)
84         content = {
85             'content': {
86                 'Requestors': ", ".join(rcpts),
87                 'Queue': opts.rt_queue,
88                 'Subject' : msg['Subject'],
89                 'Text' : '',
90             }
91         }
92         if opts.rt_owner:
93             content['content']['AdminCC'] = opts.rt_owner
94             content['content']['Owner'] = opts.rt_owner
95
96         try:
97             response = resource.post(path='ticket/new', payload=content,)
98             results = dict(response.parsed[0])
99             ticket, ticket_number = results['id'].split('/')
100             assert ticket == 'ticket', 'unexpected value "%s" instead of ticket' % (ticket, )
101             subject = "%s [help.mit.edu #%s]" % (msg['Subject'], ticket_number)
102             del msg['Subject']
103             msg['Subject'] = subject
104         except rtkit.errors.RTResourceError as e:
105             logger.error(e.response.status_int)
106             logger.error(e.response.status)
107             logger.error(e.response.parsed)
108
109         # We don't want to send mail to the real recipient, because RT
110         # will send them a copy too.
111         return [], msg.as_string()
112
113     return filter_rt
114
115 def mail_merge(opts, cc_addr, email_file, recipients_file):
116     email_tmpl = open(email_file, 'rU').read()
117     reader = csv.reader(open(recipients_file, 'rU'))
118     header = reader.next()
119     msg_filter = msg_filter_factory(opts)
120     print header
121     if not 'email' in header:
122         print >>sys.stderr, "Your CSV file doesn't have an email field. You should fix that.\n(Note that this script is case-sensitive.)"
123         return False
124     for line in reader:
125         dct = dictize_line(header, line, )
126         print dct
127         text = email_tmpl % dct
128         if opts.split:
129             prop_rcpts = dct['email'].split(opts.split)
130         else:
131             prop_rcpts = [dct['email']]
132         rcpts, text = msg_filter(prop_rcpts, text, )
133         rcpts.append(cc_addr)
134         sendmail(rcpts, text, )
135
136 if __name__=='__main__':
137     options, args = parse_arguments()
138     setup_sendmail()
139     mail_merge(options, *args)