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#!/usr/bin/python
#
# Patchwork - automated patch tracking system
# Copyright (C) 2008 Jeremy Kerr <jk@ozlabs.org>
#
# This file is part of the Patchwork package.
#
# Patchwork 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.
#
# Patchwork 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 Patchwork; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys
import re
import datetime
import time
import operator
from email import message_from_file
from email.header import Header
from email.utils import parsedate_tz, mktime_tz
from patchparser import parse_patch
from patchwork.models import Patch, Project, Person, Comment
list_id_headers = ['List-ID', 'X-Mailing-List']
def find_project(mail):
project = None
listid_re = re.compile('.*<([^>]+)>.*', re.S)
for header in list_id_headers:
if header in mail:
match = listid_re.match(mail.get(header))
if not match:
continue
listid = match.group(1)
try:
project = Project.objects.get(listid = listid)
break
except:
pass
return project
def find_author(mail):
from_header = mail.get('From').strip()
(name, email) = (None, None)
# tuple of (regex, fn)
# - where fn returns a (name, email) tuple from the match groups resulting
# from re.match().groups()
from_res = [
# for "Firstname Lastname" <example@example.com> style addresses
(re.compile('"?(.*?)"?\s*<([^>]+)>'), (lambda g: (g[0], g[1]))),
# for example@example.com (Firstname Lastname) style addresses
(re.compile('"?(.*?)"?\s*\(([^\)]+)\)'), (lambda g: (g[1], g[0]))),
# everything else
(re.compile('(.*)'), (lambda g: (None, g[0]))),
]
for regex, fn in from_res:
match = regex.match(from_header)
if match:
(name, email) = fn(match.groups())
break
if email is None:
raise Exception("Could not parse From: header")
email = email.strip()
if name is not None:
name = name.strip()
new_person = False
try:
person = Person.objects.get(email = email)
except Person.DoesNotExist:
person = Person(name = name, email = email)
new_person = True
return (person, new_person)
def mail_date(mail):
t = parsedate_tz(mail.get('Date', ''))
if not t:
print "using now()"
return datetime.datetime.utcnow()
return datetime.datetime.utcfromtimestamp(mktime_tz(t))
def mail_headers(mail):
return reduce(operator.__concat__,
['%s: %s\n' % (k, Header(v, header_name = k, \
continuation_ws = '\t').encode()) \
for (k, v) in mail.items()])
def find_content(project, mail):
patchbuf = None
commentbuf = ''
for part in mail.walk():
if part.get_content_maintype() != 'text':
continue
#print "\t%s, %s" % \
# (part.get_content_subtype(), part.get_content_charset())
charset = part.get_content_charset()
if not charset:
charset = mail.get_charset()
if not charset:
charset = 'utf-8'
payload = unicode(part.get_payload(decode=True), charset, "replace")
if part.get_content_subtype() == 'x-patch':
patchbuf = payload
if part.get_content_subtype() == 'plain':
if not patchbuf:
(patchbuf, c) = parse_patch(payload)
else:
c = payload
if c is not None:
commentbuf += c.strip() + '\n'
patch = None
comment = None
if patchbuf:
mail_headers(mail)
patch = Patch(name = clean_subject(mail.get('Subject')),
content = patchbuf, date = mail_date(mail),
headers = mail_headers(mail))
if commentbuf:
if patch:
cpatch = patch
else:
cpatch = find_patch_for_comment(mail)
if not cpatch:
return (None, None)
comment = Comment(patch = cpatch, date = mail_date(mail),
content = clean_content(commentbuf),
headers = mail_headers(mail))
return (patch, comment)
def find_patch_for_comment(mail):
# construct a list of possible reply message ids
refs = []
if 'In-Reply-To' in mail:
refs.append(mail.get('In-Reply-To'))
if 'References' in mail:
rs = mail.get('References').split()
rs.reverse()
for r in rs:
if r not in refs:
refs.append(r)
for ref in refs:
patch = None
# first, check for a direct reply
try:
patch = Patch.objects.get(msgid = ref)
return patch
except Patch.DoesNotExist:
pass
# see if we have comments that refer to a patch
try:
comment = Comment.objects.get(msgid = ref)
return comment.patch
except Comment.DoesNotExist:
pass
return None
re_re = re.compile('^(re|fwd?)[:\s]\s*', re.I)
prefix_re = re.compile('^\[.*\]\s*')
whitespace_re = re.compile('\s+')
def clean_subject(subject):
subject = re_re.sub(' ', subject)
subject = prefix_re.sub('', subject)
subject = whitespace_re.sub(' ', subject)
return subject.strip()
sig_re = re.compile('^(-{2,3} ?|_+)\n.*', re.S | re.M)
def clean_content(str):
str = sig_re.sub('', str)
return str.strip()
def main(args):
mail = message_from_file(sys.stdin)
# some basic sanity checks
if 'From' not in mail:
return 0
if 'Subject' not in mail:
return 0
if 'Message-Id' not in mail:
return 0
hint = mail.get('X-Patchwork-Hint', '').lower()
if hint == 'ignore':
return 0;
project = find_project(mail)
if project is None:
print "no project found"
return 0
msgid = mail.get('Message-Id').strip()
(author, save_required) = find_author(mail)
(patch, comment) = find_content(project, mail)
if patch:
# we delay the saving until we know we have a patch.
if save_required:
author.save()
save_required = False
patch.submitter = author
patch.msgid = msgid
patch.project = project
try:
patch.save()
except Exception, ex:
print ex.message
if comment:
if save_required:
author.save()
# looks like the original constructor for Comment takes the pk
# when the Comment is created. reset it here.
if patch:
comment.patch = patch
comment.submitter = author
comment.msgid = msgid
try:
comment.save()
except Exception, ex:
print ex.message
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))
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