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#!/usr/bin/python3
import configparser
import mysql.connector
import os
import pygit2
import re
import shlex
import sys
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')
aur_db_socket = config.get('database', 'socket')
repo_base_path = config.get('serve', 'repo-base')
repo_regex = config.get('serve', 'repo-regex')
git_update_hook = config.get('serve', 'git-update-hook')
git_shell_cmd = config.get('serve', 'git-shell-cmd')
ssh_cmdline = config.get('serve', 'ssh-cmdline')
def repo_path_validate(path):
if not path.startswith(repo_base_path):
return False
if not path.endswith('.git/'):
return False
repo = path[len(repo_base_path):-5]
return re.match(repo_regex, repo)
def repo_path_get_pkgbase(path):
pkgbase = path.rstrip('/').rpartition('/')[2]
if pkgbase.endswith('.git'):
pkgbase = pkgbase[:-4]
return pkgbase
def setup_repo(repo, user):
if not re.match(repo_regex, repo):
die('%s: invalid repository name: %s' % (action, repo))
db = mysql.connector.connect(host=aur_db_host, user=aur_db_user,
passwd=aur_db_pass, db=aur_db_name,
unix_socket=aur_db_socket)
cur = db.cursor()
cur.execute("SELECT COUNT(*) FROM PackageBases WHERE Name = %s ", [repo])
if cur.fetchone()[0] > 0:
die('%s: package base already exists: %s' % (action, repo))
cur.execute("SELECT ID FROM Users WHERE Username = %s ", [user])
userid = cur.fetchone()[0]
if userid == 0:
die('%s: unknown user: %s' % (action, user))
cur.execute("INSERT INTO PackageBases (Name, SubmittedTS, ModifiedTS, " +
"SubmitterUID) VALUES (%s, UNIX_TIMESTAMP(), " +
"UNIX_TIMESTAMP(), %s)", [repo, userid])
db.commit()
db.close()
repo_path = repo_base_path + '/' + repo + '.git/'
pygit2.init_repository(repo_path, True)
os.symlink(git_update_hook, repo_path + 'hooks/update')
def check_permissions(pkgbase, user):
db = mysql.connector.connect(host=aur_db_host, user=aur_db_user,
passwd=aur_db_pass, db=aur_db_name,
unix_socket=aur_db_socket, buffered=True)
cur = db.cursor()
cur.execute("SELECT COUNT(*) FROM PackageBases INNER JOIN Users " +
"ON Users.ID = PackageBases.MaintainerUID OR " +
"PackageBases.MaintainerUID IS NULL WHERE " +
"Name = %s AND Username = %s", [pkgbase, user])
return cur.fetchone()[0] > 0
def die(msg):
sys.stderr.write("%s\n" % (msg))
exit(1)
def die_with_help(msg):
die(msg + "\nTry `%s help` for a list of commands." % (ssh_cmdline))
user = sys.argv[1]
cmd = os.environ.get("SSH_ORIGINAL_COMMAND")
if not cmd:
die_with_help("Interactive shell is disabled.")
cmdargv = shlex.split(cmd)
action = cmdargv[0]
if action == 'git-upload-pack' or action == 'git-receive-pack':
if len(cmdargv) < 2:
die_with_help("%s: missing path" % (action))
path = repo_base_path.rstrip('/') + cmdargv[1]
if not repo_path_validate(path):
die('%s: invalid path: %s' % (action, path))
pkgbase = repo_path_get_pkgbase(path)
if action == 'git-receive-pack':
if not check_permissions(pkgbase, user):
die('%s: permission denied: %s' % (action, user))
os.environ["AUR_USER"] = user
os.environ["AUR_GIT_DIR"] = path
os.environ["AUR_PKGBASE"] = pkgbase
cmd = action + " '" + path + "'"
os.execl(git_shell_cmd, git_shell_cmd, '-c', cmd)
elif action == 'setup-repo':
if len(cmdargv) < 2:
die_with_help("%s: missing repository name" % (action))
if len(cmdargv) > 2:
die_with_help("%s: too many arguments" % (action))
setup_repo(cmdargv[1], user)
elif action == 'help':
die("Commands:\n" +
" help Show this help message and exit.\n" +
" setup-repo <name> Create an empty repository.\n" +
" git-receive-pack Internal command used with Git.\n" +
" git-upload-pack Internal command used with Git.")
else:
die_with_help("invalid command: %s" % (action))
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