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#!/usr/bin/python3
# Copyright (c) 2015, Ralf Jung <post@ralfj.de>
# 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 SUCH DAMAGE.
#==============================================================================
# This is the CGI script receiving GitHub webhooks.
# You may have to change the location of the "main" webhook script:
webhook_core = "/home/git/git-mirror/webhook-core.py"
#
import urllib.request, urllib.parse, json, os, sys
def is_github(remote_addr):
'''Returns whether the address is a github hook address. This function requires Python 3.3.'''
from ipaddress import ip_address, ip_network
remote_addr = ip_address(ip_network)
github = urllib.request.urlopen('https://api.github.com/meta').read()
github = json.loads(github.decode('utf-8'))
for net in github['hooks']:
if remote_addr in ip_network(net):
return True
return False
# get repository from query string
query = os.getenv("QUERY_STRING")
query = urllib.parse.parse_qs(query)
repository = query.get('repository', [])
repository = repository[0] if len(repository) else ''
# get GitHub metadata
githubEvent = os.getenv('HTTP_X_GITHUB_EVENT')
githubSignature = os.getenv('HTTP_X_HUB_SIGNATURE')
# execute the actual script
os.execlp("sudo", "sudo", "-n", "-u", "git", webhook_core, repository, str(githubEvent), str(githubSignature))
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