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authentik
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start config file watch 

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
Signed-off-by: Jens Langhammer <jens@goauthentik.io>
This commit is contained in:
Jens Langhammer 2023-01-05 22:26:33 +01:00 committed by Jens Langhammer
parent 5ea9595c9c
commit 3fa987f443
No known key found for this signature in database
2 changed files with 78 additions and 12 deletions
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70
authentik/lib/config.py
View File

@ -5,13 +5,20 @@ from contextlib import contextmanager
from glob import glob
from json import dumps, loads
from json.decoder import JSONDecodeError
from pathlib import Path
from sys import argv, stderr
from time import time
from typing import Any
from typing import Any, Optional
from urllib.parse import urlparse
import yaml
from django.conf import ImproperlyConfigured
from watchdog.events import (
FileModifiedEvent,
FileSystemEvent,
FileSystemEventHandler,
)
from watchdog.observers import Observer
SEARCH_PATHS = ["authentik/lib/default.yml", "/etc/authentik/config.yml", ""] + glob(
"/etc/authentik/config.d/*.yml", recursive=True
@ -38,9 +45,47 @@ class ConfigLoader:
A variable like AUTHENTIK_POSTGRESQL__HOST would translate to postgresql.host"""
loaded_file = []
observer: Observer
class FSObserver(FileSystemEventHandler):
"""File system observer"""
loader: "ConfigLoader"
path: str
container: Optional[dict] = None
key: Optional[str] = None
def __init__(
self,
loader: "ConfigLoader",
path: str,
container: Optional[dict] = None,
key: Optional[str] = None,
) -> None:
super().__init__()
self.loader = loader
self.path = path
self.container = container
self.key = key
def on_any_event(self, event: FileSystemEvent):
if not isinstance(event, FileModifiedEvent):
return
if event.is_directory:
return
if event.src_path != self.path:
return
if self.container and self.key:
with open(self.path, "r", encoding="utf8") as _file:
self.container[self.key] = _file.read()
else:
self.loader.log("info", "Updating from changed file", file=self.path)
self.loader.update_from_file(self.path, watch=False)
def __init__(self):
super().__init__()
self.observer = Observer()
self.observer.start()
self.__config = {}
base_dir = os.path.realpath(os.path.join(os.path.dirname(__file__), "../.."))
for path in SEARCH_PATHS:
@ -81,11 +126,11 @@ class ConfigLoader:
root[key] = self.update(root.get(key, {}), value)
else:
if isinstance(value, str):
value = self.parse_uri(value)
value = self.parse_uri(value, root, key)
root[key] = value
return root
def parse_uri(self, value: str) -> str:
def parse_uri(self, value: str, container: dict[str, Any], key: Optional[str] = None, ) -> str:
"""Parse string values which start with a URI"""
url = urlparse(value)
if url.scheme == "env":
@ -93,13 +138,23 @@ class ConfigLoader:
if url.scheme == "file":
try:
with open(url.path, "r", encoding="utf8") as _file:
value = _file.read().strip()
value = _file.read()
if key:
self.observer.schedule(
ConfigLoader.FSObserver(
self,
url.path,
container,
key,
),
Path(url.path).parent,
)
except OSError as exc:
self.log("error", f"Failed to read config value from {url.path}: {exc}")
value = url.query
return value
def update_from_file(self, path: str):
def update_from_file(self, path: str, watch=True):
"""Update config from file contents"""
try:
with open(path, encoding="utf8") as file:
@ -107,6 +162,8 @@ class ConfigLoader:
self.update(self.__config, yaml.safe_load(file))
self.log("debug", "Loaded config", file=path)
self.loaded_file.append(path)
if watch:
self.observer.schedule(ConfigLoader.FSObserver(self, path), Path(path).parent)
except yaml.YAMLError as exc:
raise ImproperlyConfigured from exc
except PermissionError as exc:
@ -181,13 +238,12 @@ class ConfigLoader:
if comp not in root:
root[comp] = {}
root = root.get(comp, {})
root[path_parts[-1]] = value
self.parse_uri(value, root, path_parts[-1])
def y_bool(self, path: str, default=False) -> bool:
"""Wrapper for y that converts value into boolean"""
return str(self.y(path, default)).lower() == "true"
CONFIG = ConfigLoader()
if __name__ == "__main__":

20
authentik/lib/tests/test_config.py
View File

@ -5,7 +5,7 @@ from tempfile import mkstemp
from django.conf import ImproperlyConfigured
from django.test import TestCase
from authentik.lib.config import ENV_PREFIX, ConfigLoader
from authentik.lib.config import CONFIG, ENV_PREFIX, ConfigLoader
class TestConfig(TestCase):
@ -31,8 +31,8 @@ class TestConfig(TestCase):
"""Test URI parsing (environment)"""
config = ConfigLoader()
environ["foo"] = "bar"
self.assertEqual(config.parse_uri("env://foo"), "bar")
self.assertEqual(config.parse_uri("env://foo?bar"), "bar")
self.assertEqual(config.parse_uri("env://foo", {}), "bar")
self.assertEqual(config.parse_uri("env://foo?bar", {}), "bar")
def test_uri_file(self):
"""Test URI parsing (file load)"""
@ -41,8 +41,8 @@ class TestConfig(TestCase):
write(file, "foo".encode())
_, file2_name = mkstemp()
chmod(file2_name, 0o000) # Remove all permissions so we can't read the file
self.assertEqual(config.parse_uri(f"file://{file_name}"), "foo")
self.assertEqual(config.parse_uri(f"file://{file2_name}?def"), "def")
self.assertEqual(config.parse_uri(f"file://{file_name}", {}), "foo")
self.assertEqual(config.parse_uri(f"file://{file2_name}?def", {}), "def")
unlink(file_name)
unlink(file2_name)
@ -59,3 +59,13 @@ class TestConfig(TestCase):
config.update_from_file(file2_name)
unlink(file_name)
unlink(file2_name)
def test_update(self):
"""Test change to file"""
file, file_name = mkstemp()
write(file, b"test")
CONFIG.y_set("test.file", f"file://{file_name}")
self.assertEqual(CONFIG.y("test.file"), "test")
write(file, "test2")
self.assertEqual(CONFIG.y("test.file"), "test2")
unlink(file_name)