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