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#!/usr/bin/python
# Reasonably well-formed announcements to the debian-security-announce
# mailing list can be piped through this script. The result is an
# entry suitable for data/DSA/list.
import os
import os.path
import re
import string
import sys
import time
import urllib2
def setup_paths():
check_file = 'lib/python/debian_support.py'
paths = [os.getcwd(), os.path.dirname(sys.argv[0])]
try:
paths.append(os.path.dirname(os.readlink(sys.argv[0])))
except OSError:
pass
for path in paths:
while 1:
if os.path.exists("%s/%s" % (path, check_file)):
sys.path = [path + '/lib/python'] + sys.path
return path
idx = string.rfind(path, '/')
if idx == -1:
break
path = path[0:idx]
raise ImportError, "could not setup paths"
os.chdir(setup_paths())
import debian_support
# DSAs do not contain version numbers with epochs, so they are useless
# for our purposes.
def fetch_dsc(url):
u = urllib2.urlopen(url)
assert u.readline()[0] == '-' # OpenPGP cleartext signature header
def parse(*regexps):
result = [None] * len(regexps)
for line in u:
for i in range(len(regexps)):
match = regexps[i].match(line)
if match:
result[i] = match.groups()[0]
continue
if line[0] == '-':
break
return result
(source, version)= parse(re.compile("^Source: (\S+)$"),
re.compile("^Version: (\S+)$"))
assert source is not None
assert version is not None
return (source, version)
re_title = re.compile(r'^Subject: .*\[DSA[ -](\d+-\d+)\] .* fix(?:es)? (.*)$')
re_date = re.compile(r'^([A-Z][a-z][a-z])[a-z]* (\d+)[a-z]*, (\d+)\s+http://.*')
re_cve = re.compile('(CVE-\d{4}-\d{4})')
release_headline_re = re.compile(
r'^Debian GNU/Linux [0-9.]+ (?:\(|alias) ([a-z]+).*')
dscurl_re = re.compile(r'^\s*(http://\S+\.dsc).*')
# Variants used by "dak new-security-install"
re_date1 = re.compile(r'^([A-Z][a-z][a-z])[a-z]* (\d+), (2\d{3}).*')
release_headline1_re = re.compile(r'^Debian [0-9.]+ \(([a-z]+)\).*')
release_map = {'stable' : 'lenny', 'oldstable' : 'etch'}
def process_file(file):
cve_names = {}
package_notes = []
release = ''
date = ''
dsa_name = ''
title = ''
packages = {}
for line in file.readlines():
match = re_title.match(line)
if match:
(dsa_name, title) = match.groups()
continue
match = re_date.match(line)
if match:
(m, d, y) = match.groups()
date = "%02d %s %s" % (int(d), m, y)
continue
for cve in re_cve.findall(line):
cve_names[cve] = True
match = release_headline_re.match(line)
if match:
(release,) = match.groups()
continue
match = dscurl_re.match(line)
if match:
assert release
(source, version) = fetch_dsc(match.groups()[0])
packages[source] = True
package_notes.append((release, source, version))
# Variants used by "dak new-security-install"
match = re_date1.match(line)
if match:
(m, d, y) = match.groups()
date = "%02d %s %s" % (int(d), m, y)
continue
match = release_headline1_re.match(line)
if match:
(release,) = match.groups()
release = release_map[release]
continue
assert date
assert title
packages = packages.keys()
packages.sort()
print "[%s] DSA-%s %s - %s" % (date, dsa_name, ' '.join(packages), title)
cve_names = cve_names.keys()
if cve_names:
cve_names.sort()
print "\t{%s}" % (' '.join(cve_names))
for (release, source, version) in package_notes:
print "\t[%s] - %s %s" % (release, source, version)
if len(sys.argv) == 1:
process_file(sys.stdin)
else:
l = sys.argv[1:]
l.reverse()
def is_bad(f):
if os.path.exists(f):
return True
sys.stderr.write("error: file does not exist: %s\n" % f)
return False
l = filter(is_bad, l)
for x in l:
process_file(file(x))
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