1 files changed, 157 insertions, 0 deletions
diff --git a/scripts/git-integration/git-serve.py b/scripts/git-integration/git-serve.py
new file mode 100755
index 00000000..227e37b9
--- /dev/null
+++ b/scripts/git-integration/git-serve.py
@@ -0,0 +1,157 @@
+#!/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 path.endswith('.git'):
+        repo = path[len(repo_base_path):-4]
+    elif path.endswith('.git/'):
+        repo = path[len(repo_base_path):-5]
+    else:
+        return False
+    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 list_repos(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)
+    cur = db.cursor()
+
+    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("SELECT Name, PackagerUID FROM PackageBases " +
+                "WHERE MaintainerUID = %s ", [userid])
+    for row in cur:
+        print((' ' if row[1] else '*') + row[0])
+    db.close()
+
+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, MaintainerUID) VALUES (%s, UNIX_TIMESTAMP(), " +
+                "UNIX_TIMESTAMP(), %s, %s)", [repo, userid, 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 AccountTypeID FROM Users WHERE UserName = %s ", [user])
+    if cur.fetchone()[0] > 1:
+        return True
+
+    cur.execute("SELECT COUNT(*) FROM PackageBases " +
+                "LEFT JOIN PackageComaintainers " +
+                "ON PackageComaintainers.PackageBaseID = PackageBases.ID " +
+                "INNER JOIN Users ON Users.ID = PackageBases.MaintainerUID " +
+                "OR PackageBases.MaintainerUID IS NULL " +
+                "OR Users.ID = PackageComaintainers.UsersID " +
+                "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 not os.path.exists(path):
+        setup_repo(pkgbase, user)
+    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 == 'list-repos':
+    if len(cmdargv) > 1:
+        die_with_help("%s: too many arguments" % (action))
+    list_repos(user)
+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" +
+        "  list-repos           List all your repositories.\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))