From ad17b9e2b4bebcf744129ed5a1a2c6e544d42739 Mon Sep 17 00:00:00 2001 From: Lukas Fleischer Date: Wed, 4 Jun 2014 22:11:43 +0200 Subject: Add basic Git authentication/authorization scripts This adds two scripts to be used together with Git over SSH: * git-auth.py is supposed to be used as AuthorizedKeysCommand. It checks whether the public key belongs to any AUR user and invokes git-serve.py, passing the name of the corresponding user as a command line argument, if any. * git-serve.py is a wrapper around git-shell(1) that checks whether the user passed as command line argument has access to the Git repository that a push operation writes to. Signed-off-by: Lukas Fleischer --- scripts/git-integration/git-auth.py | 41 +++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100755 scripts/git-integration/git-auth.py (limited to 'scripts/git-integration/git-auth.py') diff --git a/scripts/git-integration/git-auth.py b/scripts/git-integration/git-auth.py new file mode 100755 index 00000000..8701d5ef --- /dev/null +++ b/scripts/git-integration/git-auth.py @@ -0,0 +1,41 @@ +#!/usr/bin/python3 + +import configparser +import mysql.connector +import os +import re + +config = configparser.RawConfigParser() +config.read(os.path.dirname(os.path.realpath(__file__)) + "/../../conf/config") + +aur_db_host = config.get('database', 'host') +aur_db_name = config.get('database', 'name') +aur_db_user = config.get('database', 'user') +aur_db_pass = config.get('database', 'password') + +key_prefixes = config.get('auth', 'key-prefixes').split() +username_regex = config.get('auth', 'username-regex') +git_serve_cmd = config.get('auth', 'git-serve-cmd') +ssh_opts = config.get('auth', 'ssh-options') + +pubkey = os.environ.get("SSH_KEY") +valid_prefixes = tuple(p + " " for p in key_prefixes) +if pubkey is None or not pubkey.startswith(valid_prefixes): + exit(1) + +db = mysql.connector.connect(host=aur_db_host, user=aur_db_user, + passwd=aur_db_pass, db=aur_db_name, + buffered=True) + +cur = db.cursor() +cur.execute("SELECT Username FROM Users WHERE SSHPubKey = %s " + + "AND Suspended = 0", (pubkey,)) + +if cur.rowcount != 1: + exit(1) + +user = cur.fetchone()[0] +if not re.match(username_regex, user): + exit(1) + +print('command="%s %s",%s %s' % (git_serve_cmd, user, ssh_opts, pubkey)) -- cgit v1.2.3-24-g4f1b