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#!/usr/bin/python3
import os
import re
import shlex
import sys
import time
import config
import db
repo_path = config.get('serve', 'repo-path')
repo_regex = config.get('serve', 'repo-regex')
git_shell_cmd = config.get('serve', 'git-shell-cmd')
git_update_cmd = config.get('serve', 'git-update-cmd')
ssh_cmdline = config.get('serve', 'ssh-cmdline')
enable_maintenance = config.getboolean('options', 'enable-maintenance')
maintenance_exc = config.get('options', 'maintenance-exceptions').split()
def pkgbase_from_name(pkgbase):
conn = db.Connection()
cur = conn.execute("SELECT ID FROM PackageBases WHERE Name = ?", [pkgbase])
row = cur.fetchone()
return row[0] if row else None
def pkgbase_exists(pkgbase):
return pkgbase_from_name(pkgbase) is not None
def list_repos(user):
conn = db.Connection()
cur = conn.execute("SELECT ID FROM Users WHERE Username = ?", [user])
userid = cur.fetchone()[0]
if userid == 0:
die('{:s}: unknown user: {:s}'.format(action, user))
cur = conn.execute("SELECT Name, PackagerUID FROM PackageBases " +
"WHERE MaintainerUID = ?", [userid])
for row in cur:
print((' ' if row[1] else '*') + row[0])
conn.close()
def create_pkgbase(pkgbase, user):
if not re.match(repo_regex, pkgbase):
die('{:s}: invalid repository name: {:s}'.format(action, pkgbase))
if pkgbase_exists(pkgbase):
die('{:s}: package base already exists: {:s}'.format(action, pkgbase))
conn = db.Connection()
cur = conn.execute("SELECT ID FROM Users WHERE Username = ?", [user])
userid = cur.fetchone()[0]
if userid == 0:
die('{:s}: unknown user: {:s}'.format(action, user))
now = int(time.time())
cur = conn.execute("INSERT INTO PackageBases (Name, SubmittedTS, " +
"ModifiedTS, SubmitterUID, MaintainerUID) VALUES " +
"(?, ?, ?, ?, ?)", [pkgbase, now, now, userid, userid])
pkgbase_id = cur.lastrowid
cur = conn.execute("INSERT INTO PackageNotifications " +
"(PackageBaseID, UserID) VALUES (?, ?)",
[pkgbase_id, userid])
conn.commit()
conn.close()
def pkgbase_set_keywords(pkgbase, keywords):
pkgbase_id = pkgbase_from_name(pkgbase)
if not pkgbase_id:
die('{:s}: package base not found: {:s}'.format(action, pkgbase))
conn = db.Connection()
conn.execute("DELETE FROM PackageKeywords WHERE PackageBaseID = ?",
[pkgbase_id])
for keyword in keywords:
conn.execute("INSERT INTO PackageKeywords (PackageBaseID, Keyword) " +
"VALUES (?, ?)", [pkgbase_id, keyword])
conn.commit()
conn.close()
def pkgbase_has_write_access(pkgbase, user):
conn = db.Connection()
cur = conn.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 = ? AND Username = ?", [pkgbase, user])
return cur.fetchone()[0] > 0
def die(msg):
sys.stderr.write("{:s}\n".format(msg))
exit(1)
def die_with_help(msg):
die(msg + "\nTry `{:s} help` for a list of commands.".format(ssh_cmdline))
def warn(msg):
sys.stderr.write("warning: {:s}\n".format(msg))
def usage(cmds):
sys.stderr.write("Commands:\n")
colwidth = max([len(cmd) for cmd in cmds.keys()]) + 4
for key in sorted(cmds):
sys.stderr.write(" " + key.ljust(colwidth) + cmds[key] + "\n")
exit(0)
user = os.environ.get('AUR_USER')
privileged = (os.environ.get('AUR_PRIVILEGED', '0') == '1')
ssh_cmd = os.environ.get('SSH_ORIGINAL_COMMAND')
ssh_client = os.environ.get('SSH_CLIENT')
if not ssh_cmd:
die_with_help("Interactive shell is disabled.")
cmdargv = shlex.split(ssh_cmd)
action = cmdargv[0]
remote_addr = ssh_client.split(' ')[0] if ssh_client else None
if enable_maintenance:
if remote_addr not in maintenance_exc:
die("The AUR is down due to maintenance. We will be back soon.")
if action == 'git-upload-pack' or action == 'git-receive-pack':
if len(cmdargv) < 2:
die_with_help("{:s}: missing path".format(action))
path = cmdargv[1].rstrip('/')
if not path.startswith('/'):
path = '/' + path
if not path.endswith('.git'):
path = path + '.git'
pkgbase = path[1:-4]
if not re.match(repo_regex, pkgbase):
die('{:s}: invalid repository name: {:s}'.format(action, pkgbase))
if action == 'git-receive-pack' and pkgbase_exists(pkgbase):
if not privileged and not pkgbase_has_write_access(pkgbase, user):
die('{:s}: permission denied: {:s}'.format(action, user))
os.environ["AUR_USER"] = user
os.environ["AUR_PKGBASE"] = pkgbase
os.environ["GIT_NAMESPACE"] = pkgbase
cmd = action + " '" + repo_path + "'"
os.execl(git_shell_cmd, git_shell_cmd, '-c', cmd)
elif action == 'set-keywords':
if len(cmdargv) < 2:
die_with_help("{:s}: missing repository name".format(action))
pkgbase_set_keywords(cmdargv[1], cmdargv[2:])
elif action == 'list-repos':
if len(cmdargv) > 1:
die_with_help("{:s}: too many arguments".format(action))
list_repos(user)
elif action == 'setup-repo':
if len(cmdargv) < 2:
die_with_help("{:s}: missing repository name".format(action))
if len(cmdargv) > 2:
die_with_help("{:s}: too many arguments".format(action))
warn('{:s} is deprecated. Use `git push` to create new repositories.'.format(action))
create_pkgbase(cmdargv[1], user)
elif action == 'restore':
if len(cmdargv) < 2:
die_with_help("{:s}: missing repository name".format(action))
if len(cmdargv) > 2:
die_with_help("{:s}: too many arguments".format(action))
pkgbase = cmdargv[1]
if not re.match(repo_regex, pkgbase):
die('{:s}: invalid repository name: {:s}'.format(action, pkgbase))
if pkgbase_exists(pkgbase):
die('{:s}: package base exists: {:s}'.format(action, pkgbase))
create_pkgbase(pkgbase, user)
os.environ["AUR_USER"] = user
os.environ["AUR_PKGBASE"] = pkgbase
os.execl(git_update_cmd, git_update_cmd, 'restore')
elif action == 'help':
cmds = {
"help": "Show this help message and exit.",
"list-repos": "List all your repositories.",
"restore <name>": "Restore a deleted package base.",
"set-keywords <name> [...]": "Change package base keywords.",
"setup-repo <name>": "Create a repository (deprecated).",
"git-receive-pack": "Internal command used with Git.",
"git-upload-pack": "Internal command used with Git.",
}
usage(cmds)
else:
die_with_help("invalid command: {:s}".format(action))
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