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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2012 Sofian Brabez <sbz@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#
# $FreeBSD$
#
# MAINTAINER= sbz@FreeBSD.org
import argparse
import codecs
import re
import sys
if sys.version_info.major == 3:
import urllib.request as urllib2
else:
import urllib2
"""
FreeBSD getpatch handles Gnats and Bugzilla patch attachments
"""
class GetPatch(object):
def __init__(self, pr, category='ports'):
self.pr = pr
self.category = category
self.patchs = []
self.url = ""
self.patch = ""
self.output_stdout = False
self.default_locale = sys.getdefaultencoding()
def fetch(self, *largs, **kwargs):
raise NotImplementedError()
def write(self, filename, data):
if filename.endswith(('.patch', '.txt')):
filename = filename[:filename.rindex('.')]+'.diff'
f=codecs.open(filename, encoding=self.default_locale, mode='w')
f.write(data.decode(self.default_locale))
f.close()
self.out("[+] %s created" % filename)
def get(self,only_last=False, output_stdout=False):
self.output_stdout = output_stdout
self.fetch(self.pr, category=self.category)
if len(self.patchs) == 0:
self.out("[-] No patch found")
sys.exit(1)
if only_last:
self.patchs = [self.patchs.pop()]
for patch in self.patchs:
url = patch['url']
p = patch['name']
data = urllib2.urlopen(url).read()
if self.output_stdout:
sys.stdout.write(data.decode(self.default_locale))
else:
self.write(p, data)
def add_patch(self, url, name):
self.patchs.append({'url': url, 'name': name})
def out(self, s):
if not self.output_stdout:
print(s)
class GnatsGetPatch(GetPatch):
URL_BASE = 'http://www.freebsd.org/cgi'
URL = '%s/query-pr.cgi?pr=' % URL_BASE
REGEX = r'<b>Download <a href="([^"]*)">([^<]*)</a>'
def __init__(self, pr, category):
GetPatch.__init__(self, pr, category)
def fetch(self, *largs, **kwargs):
category = kwargs['category']
target = ("%s/%s" % (category, self.pr), "%s" % self.pr)[category=='']
self.out("[+] Fetching patch for pr %s" % target)
pattern = re.compile(self.REGEX)
u = urllib2.urlopen(self.URL+'%s' % target)
data = u.read()
if data == None:
self.out("[-] No patch found")
sys.exit(1)
for patchs in re.findall(pattern, str(data)):
self.add_patch(patchs[0], patchs[1])
class BzGetPatch(GetPatch):
URL_BASE='https://bugzilla.freebsd.org'
URL_SHOW = '%s/show_bug.cgi?id=' % URL_BASE
REGEX_URL = r'<a href="([^<]+)">Details</a>'
REGEX = r'<div class="details">([^ ]+) \(text/plain\)'
def __init__(self, pr, category):
GetPatch.__init__(self, pr, category)
def _extract_patchs_url(self, data):
pattern = re.compile(self.REGEX_URL)
return re.findall(pattern, data)
def _extract_patchs_name(self, urls):
names = []
pattern = re.compile(self.REGEX)
for url in urls:
u = urllib2.urlopen('%s/%s' % (self.URL_BASE, url))
data = u.read()
names.append(re.findall(pattern, data)[0])
return names
def fetch(self, *largs, **kwargs):
category = kwargs['category']
self.out("[+] Fetching patch for pr %s/%s" % (category, self.pr))
u = urllib2.urlopen(self.URL_SHOW+'%s' % self.pr)
data = u.read()
if data == None:
self.out("[-] No patch found")
sys.exit(1)
urls = self._extract_patchs_url(data)
nb_urls = len(urls)
names = self._extract_patchs_name(urls)
nb_names = len(names)
urls = ['%s/%s' % (self.URL_BASE, u[:u.find('&')]) for u in urls]
if nb_names == 0 or nb_urls == 0 or nb_names != nb_urls:
self.out("[-] No patch found")
sys.exit(1)
for i in range(nb_urls):
self.add_patch(urls[i], names[i])
def main():
parser = argparse.ArgumentParser(
description='Gets patch attachments from a Bug Tracking System'
)
parser.add_argument('pr', metavar='pr', type=str, nargs=1,
help='Pr id number')
parser.add_argument('--mode', type=str, choices=['gnats','bz'],
default='gnats', help='available modes to retrieve patch')
parser.add_argument('--last', action='store_true',
help='only retrieve the latest iteration of a patch')
parser.add_argument('--stdout', action='store_true',
help='dump patch on stdout')
if len(sys.argv) == 1:
parser.print_help()
sys.exit(1)
args = parser.parse_args()
category = ""
pr = str(args.pr[0])
if '/' in pr and pr is not None:
category, pr = pr.split('/')
Clazz = globals()['%sGetPatch' % args.mode.capitalize()]
gp = Clazz(pr, category)
gp.get(only_last=args.last, output_stdout=args.stdout)
if __name__ == '__main__':
main()
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