add support for github -> local sync

[git-mirror.git] / webhook.py

diff --git a/webhook.py b/webhook.py
new file mode 100755 (executable)
index 0000000..a7ae5f8
--- /dev/null
+++ b/webhook.py
@@ -0,0 +1,22 @@
+#!/usr/bin/python3
+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
+
+# 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 ''
+
+# execute the actual script
+git_mirror = "/home/ralf/git-mirror/update.py"
+os.execlp("sudo", "sudo", "-n", "-u", "git", git_mirror, "--web-hook", "--repository", repository)