From: Michael Orlitzky Date: Wed, 17 Apr 2024 23:08:22 +0000 (-0400) Subject: Initial commit. X-Git-Tag: 0.0.1~2 X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=87510a329169f10f2dba9291bceae39e4afd50f7;p=geoipyupdate.git Initial commit. Everything except the man page is here. It seems to work. What more do you want? --- 87510a329169f10f2dba9291bceae39e4afd50f7 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..d2b8c6c --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +# python -m build +src/geoipyupdate.egg-info/ +src/geoipyupdate/__pycache__/ +dist/ + +# pip wheel +build/ +geoipyupdate-*.whl diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..78e216d --- /dev/null +++ b/COPYING @@ -0,0 +1,15 @@ +geoipyupdate - a python replacement for maxmind's geoipupdate +Copyright (C) 2024 Michael Orlitzky + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU Affero General Public License as +published by the Free Software Foundation, either version 3 of the +License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/MANIFEST.in b/MANIFEST.in new file mode 100644 index 0000000..38df4da --- /dev/null +++ b/MANIFEST.in @@ -0,0 +1,2 @@ +include doc/geoipyupdate-sample.toml +include LICENSE diff --git a/README.rst b/README.rst new file mode 100644 index 0000000..ef80fa3 --- /dev/null +++ b/README.rst @@ -0,0 +1,49 @@ +A simple python replacement for the MaxMind geoipupdate program + +Introduction +============ + +MaxMind publishes several `GeoIP databases +`_ that associate geographical +locations with IP addresses. To keep those databases updated, they +provide a utility called `geoipupdate +`_. + +The geoipupdate client was originally in C but has now been rewritten +in Go. That has several downsides from system administration and +security standpoints that we need not repeat here. As a result, it's +nice to have a simple python client that can update the databases, +perhaps at the expense of a few bells and whistles. That's what +geoipyupdate is. + +To use it, you will still need a MaxMind account because your account +id and license key are required to access the files. A `free option +`_ is +available. For more details... go bother MaxMind. The intended +audience for geoipyupdate is system administrators who already know +what these databases are and how to use them. + + +Configuration +============= + +geoipyupdate has a configuration file just like the official client, +except ours is in `TOML `_ format. +The default location for the file is +``$XDG_CONFIG_HOME/geoipyupdate/geoipyupdate.conf`` but you can change +that with the ``--config-file`` flag. A sample configuration is +included in the source tarballs. + +Because geoipyupdate is supposed to be *simple*, there are several +things you cannot configure it to do: + +- Download from anywhere but updates.maxmind.com +- Use a proxy +- Mess with the modification times of the databases +- Retry failed downloads +- Use a lock file (use `lockrun + `_ to prevent + simultaneous runs) +- Download in parallel + +Sorry :) diff --git a/doc/geoipyupdate-sample.toml b/doc/geoipyupdate-sample.toml new file mode 100644 index 0000000..c28fc7b --- /dev/null +++ b/doc/geoipyupdate-sample.toml @@ -0,0 +1,16 @@ +[database] +# Where to store the databases. This is "DatabaseDirectory" in the +# official app. +datadir = "/var/lib/geoipupdate" + +# What editions to download. This is "EditionIDs" in the official app. +editions = ["GeoLite2-Country", + "GeoLite2-City"] + + +[account] +# Your MaxMind account id. This is "AccountID" in the official app. +account_id = "your-id" + +# Your MaxMind license key. This is "LicenseKey" in the official app. +license_key = "your-key" diff --git a/pyproject.toml b/pyproject.toml new file mode 100644 index 0000000..e3d4128 --- /dev/null +++ b/pyproject.toml @@ -0,0 +1,27 @@ +[build-system] +requires = ["setuptools >= 61.0"] +build-backend = "setuptools.build_meta" + +[project] +name = "geoipyupdate" +version = "0.1" +description = "Simple python replacement for the MaxMind geoipupdate program" +readme = "README.rst" +requires-python = ">=3.11" +keywords = ["maxmind", "geoip"] +license = { text = "AGPL-3.0-or-later" } +classifiers = [ + "Development Status :: 5 - Production/Stable", + "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)", + "Programming Language :: Python :: 3", + "Topic :: Internet :: WWW/HTTP", + "Topic :: System :: Systems Administration", + "Topic :: Utilities" +] +dependencies = ["requests"] + +[tool.setuptools.packages.find] +where = ["src"] + +[project.scripts] +geoipyupdate = "geoipyupdate:main" diff --git a/src/geoipyupdate/__init__.py b/src/geoipyupdate/__init__.py new file mode 100644 index 0000000..4353a68 --- /dev/null +++ b/src/geoipyupdate/__init__.py @@ -0,0 +1,118 @@ +#!/usr/bin/python3 +r""" +Simple python replacement for the MaxMind geoipupdate program. +""" + +# stdlib imports +from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser +import gzip +import hashlib +import os +from pathlib import Path +import shutil +import sys +import tempfile +import tomllib + +# external imports +import requests + + +def main(): + r""" + The entry point of the geoipyupdate script. + """ + # Create an argument parser using our docsctring as its description. + parser = ArgumentParser(description=sys.modules[__name__].__doc__, + formatter_class=ArgumentDefaultsHelpFormatter) + + # XDG_CONFIG_HOME defaults to ~/.config + default_xdgch = str(Path.home() / ".config") + xdgch = os.environ.get("XDG_CONFIG_HOME", default_xdgch) + default_config_file = os.path.join(xdgch, + "geoipyupdate", + "geoipyupdate.toml") + + parser.add_argument('-c', + '--config-file', + default=default_config_file, + help='path to configuration file') + + args = parser.parse_args() + + # Load/parse the config + with open(args.config_file, "rb") as f: + config = tomllib.load(f) + editions = config["database"]["editions"] + datadir = config["database"]["datadir"] + account_id = config["account"]["account_id"] + license_key = config["account"]["license_key"] + + # Impersonate the true client + headers = {'User-Agent': 'geoipupdate/6.1.0'} + + # This never changes + url_server = "https://updates.maxmind.com" + + for edition in editions: + # The final location of this database, which also happens to + # be where the previous database might be found. + dbfile = os.path.join(datadir, f"{edition}.mmdb") + + # Compute the hash of the old database, if there is + # one. Otherwise, leave it blank. This is passed to the server + # who might tell us that the database was 304 Not Modified. + oldhash = "" + if os.path.isfile(dbfile): + with open(dbfile, 'rb') as f: + oldhash = hashlib.md5(f.read()).hexdigest() + + url_path = f"/geoip/databases/{edition}/update?db_md5={oldhash}" + url = f"{url_server}{url_path}" + r = requests.get(url, + auth=(account_id, license_key), + headers=headers, + stream=True, + timeout=60) + + if r.status_code == 304: + # The database hasn't changed since we last downloaded it. + continue + + r.raise_for_status() + + # Insist on md5 verification of the downloads, i.e. don't handle + # the case where the md5 response header is missing. + xdbmd5 = r.headers["X-Database-MD5"] + + # First download the gzipped file to /tmp or wherever. When + # python-3.12 is more widespread, delete_on_close=False might + # be a better alternative, allowing us to use a context + # manager here. + f = tempfile.NamedTemporaryFile(delete=False) + for chunk in r.iter_content(chunk_size=128): + f.write(chunk) + f.close() + + # Now gunzip it to a new temporary file (can't simply gunzip in + # place, because now the name would be predictable). We need + # delete=False here because we intend to move this file to the + # datadir. + g = tempfile.NamedTemporaryFile(delete=False) + gdata = gzip.open(f.name, 'rb').read() + + # We're done with f. Remove it ASAP in case something goes + # wrong. + os.unlink(f.name) + + newhash = hashlib.md5(gdata).hexdigest() + if newhash == xdbmd5: + g.write(gdata) + g.close() + else: + raise ValueError( + f"{edition} hash doesn't match X-Database-MD5 header" + ) + + # Overwrite the old database file with the new (gunzipped) one. + shutil.move(g.name, dbfile)