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Update Signal alert handling

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Richie
2026-09-30 07:12:46 -04:00
parent 932e6c9ab1
commit f165f8f331
5 changed files with 99 additions and 65 deletions
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python/signal_alert.py
+27 -19
View File
@@ -5,23 +5,28 @@ from __future__ import annotations
import json
import logging
import socket
from os import getenv
logger = logging.getLogger(__name__)
def signal_alert(body: str) -> None:
"""Send a signal alert.
class SignalRPCError(RuntimeError):
"""signal-cli returned an error or closed without responding."""
def signal_alert(body: str, from_phone: str, to_phone: str, *, timeout: float = 4.0) -> None:
"""Send a Signal alert through the local signal-cli daemon.
Args:
body (str): The body of the alert.
"""
from_phone = getenv("SIGNAL_ALERT_FROM_PHONE")
to_phone = getenv("SIGNAL_ALERT_TO_PHONE")
if not from_phone or not to_phone:
logger.info("SIGNAL_ALERT_FROM_PHONE or SIGNAL_ALERT_TO_PHONE not set")
return
body: The body of the alert.
from_phone: The Signal account sending the alert.
to_phone: The Signal account receiving the alert.
timeout: Seconds to wait on each socket operation.
Raises:
SignalRPCError: If signal-cli returns an error or closes the
connection before responding.
OSError: If the socket is unreachable or an operation times out.
"""
signal_rpc_id = "signal-alert"
request = {
"jsonrpc": "2.0",
@@ -36,7 +41,7 @@ def signal_alert(body: str) -> None:
try:
with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as client:
client.settimeout(4.0)
client.settimeout(timeout)
client.connect("/run/signal-cli/socket")
client.sendall(json.dumps(request).encode() + b"\n")
@@ -46,11 +51,14 @@ def signal_alert(body: str) -> None:
while b"\n" in buffer:
line, buffer = buffer.split(b"\n", maxsplit=1)
response = json.loads(line)
if response.get("id") == signal_rpc_id:
if error := response.get("error"):
logger.error("Signal RPC returned an error: %s", error)
return
logger.error("Signal RPC socket closed before returning a response")
except OSError, json.JSONDecodeError:
logger.exception("Unable to communicate with signal-cli")
if response.get("id") != signal_rpc_id:
continue
if rpc_error := response.get("error"):
error = f"Signal RPC returned an error: {rpc_error}"
raise SignalRPCError(error)
return
error = "Signal RPC socket closed before returning a response"
raise SignalRPCError(error)
except (OSError, json.JSONDecodeError) as exc:
error = f"Signal RPC failed: {exc!r}"
raise SignalRPCError(error) from exc
python/tools/snapshot_manager.py
+18 -4
View File
@@ -6,6 +6,7 @@ import logging
import sys
import tomllib
from functools import cache
from os import getenv
from pathlib import Path # noqa: TC003 This is required for the typer CLI
from re import compile as re_compile
from re import search
@@ -24,6 +25,15 @@ def main(config_file: Path) -> None:
configure_logger(level="DEBUG")
logger.info("Starting snapshot_manager")
from_phone = getenv("SIGNAL_ALERT_FROM_PHONE")
to_phone = getenv("SIGNAL_ALERT_TO_PHONE")
if not from_phone:
error = "SIGNAL_ALERT_FROM_PHONE environment variable is not set"
raise ValueError(error)
if not to_phone:
error = "SIGNAL_ALERT_TO_PHONE environment variable is not set"
raise ValueError(error)
try:
time_stamp = get_time_stamp()
@@ -33,14 +43,14 @@ def main(config_file: Path) -> None:
if status != "snapshot created":
msg = f"{dataset.name} failed to create snapshot {time_stamp}"
logger.error(msg)
signal_alert(msg)
signal_alert(msg, from_phone, to_phone)
continue
count_lookup = get_count_lookup(config_file, dataset.name)
logger.info(f"using {count_lookup} for {dataset.name}")
get_snapshots_to_delete(dataset, count_lookup)
get_snapshots_to_delete(dataset, count_lookup, from_phone, to_phone)
except Exception:
logger.exception("snapshot_manager failed")
signal_alert("snapshot_manager failed")
signal_alert("snapshot_manager failed", from_phone, to_phone)
sys.exit(1)
else:
logger.info("snapshot_manager completed")
@@ -92,12 +102,16 @@ def load_config_data(config_file: Path) -> dict[str, dict[str, int]]:
def get_snapshots_to_delete(
dataset: Dataset,
count_lookup: dict[str, int],
from_phone: str,
to_phone: str,
) -> None:
"""Get snapshots to delete.
Args:
dataset (Dataset): the dataset
count_lookup (dict[str, int]): the count lookup
from_phone (str): The Signal account sending alerts.
to_phone (str): The Signal account receiving alerts.
"""
snapshots = dataset.get_snapshots()
@@ -127,7 +141,7 @@ def get_snapshots_to_delete(
for snapshot in snapshots_being_deleted:
if error := dataset.delete_snapshot(snapshot):
error_message = f"{dataset.name}@{snapshot} failed to delete: {error}"
signal_alert(error_message)
signal_alert(error_message, from_phone, to_phone)
logger.error(error_message)
tests/test_signal_alert.py
+10 -36
View File
@@ -4,25 +4,23 @@ from __future__ import annotations
import json
import socket
from os import environ
from typing import TYPE_CHECKING
from python.signal_alert import signal_alert
import pytest
from python.signal_alert import SignalRPCError, signal_alert
if TYPE_CHECKING:
from pytest_mock import MockerFixture
def test_signal_alert(mocker: MockerFixture) -> None:
environ["SIGNAL_ALERT_FROM_PHONE"] = "1234567890"
environ["SIGNAL_ALERT_TO_PHONE"] = "0987654321"
mock_logger = mocker.patch("python.signal_alert.logger")
mock_socket = mocker.patch("python.signal_alert.socket.socket")
client = mock_socket.return_value.__enter__.return_value
client.recv.side_effect = [b'{"jsonrpc":"2.0","result":{},"id":"signal-alert"}\n']
signal_alert("test")
assert signal_alert("test", "1234567890", "0987654321") is None
mock_logger.info.assert_not_called()
mock_socket.assert_called_once_with(socket.AF_UNIX, socket.SOCK_STREAM)
@@ -41,55 +39,31 @@ def test_signal_alert(mocker: MockerFixture) -> None:
}
def test_signal_alert_no_phones(mocker: MockerFixture) -> None:
environ.pop("SIGNAL_ALERT_FROM_PHONE", None)
environ.pop("SIGNAL_ALERT_TO_PHONE", None)
mock_logger = mocker.patch("python.signal_alert.logger")
signal_alert("test")
mock_logger.info.assert_called_once_with("SIGNAL_ALERT_FROM_PHONE or SIGNAL_ALERT_TO_PHONE not set")
def test_signal_alert_socket_error(mocker: MockerFixture) -> None:
environ["SIGNAL_ALERT_FROM_PHONE"] = "1234567890"
environ["SIGNAL_ALERT_TO_PHONE"] = "0987654321"
mock_logger = mocker.patch("python.signal_alert.logger")
mocker.patch("python.signal_alert.socket.socket", side_effect=ConnectionError("connection failed"))
signal_alert("test")
with pytest.raises(SignalRPCError, match="Signal RPC failed") as exc_info:
signal_alert("test", "1234567890", "0987654321")
mock_logger.exception.assert_called_once_with("Unable to communicate with signal-cli")
assert isinstance(exc_info.value.__cause__, ConnectionError)
def test_signal_alert_rpc_error(mocker: MockerFixture) -> None:
environ["SIGNAL_ALERT_FROM_PHONE"] = "1234567890"
environ["SIGNAL_ALERT_TO_PHONE"] = "0987654321"
mock_logger = mocker.patch("python.signal_alert.logger")
mock_socket = mocker.patch("python.signal_alert.socket.socket")
client = mock_socket.return_value.__enter__.return_value
client.recv.side_effect = [b'{"jsonrpc":"2.0","error":{"code":-1,"message":"failed"},"id":"signal-alert"}\n']
signal_alert("test")
mock_logger.error.assert_called_once_with(
"Signal RPC returned an error: %s",
{"code": -1, "message": "failed"},
)
with pytest.raises(SignalRPCError, match=r"Signal RPC returned an error:.*failed"):
signal_alert("test", "1234567890", "0987654321")
def test_signal_alert_ignores_notifications(mocker: MockerFixture) -> None:
environ["SIGNAL_ALERT_FROM_PHONE"] = "1234567890"
environ["SIGNAL_ALERT_TO_PHONE"] = "0987654321"
mock_socket = mocker.patch("python.signal_alert.socket.socket")
client = mock_socket.return_value.__enter__.return_value
client.recv.side_effect = [
b'{"jsonrpc":"2.0","method":"receive"}\n{"jsonrpc":"2.0","result":{},"id":"signal-alert"}\n'
]
signal_alert("test")
assert signal_alert("test", "1234567890", "0987654321") is None
assert client.recv.call_count == 1
tests/test_snapshot_manager.py
+43 -6
View File
@@ -16,6 +16,17 @@ if TYPE_CHECKING:
from pytest_mock import MockerFixture
SNAPSHOT_MANAGER = "python.tools.snapshot_manager"
FROM_PHONE = "1234567890"
TO_PHONE = "0987654321"
def patch_phone_numbers(mocker: MockerFixture) -> None:
"""Patch the Signal phone number environment variables."""
phone_numbers = {
"SIGNAL_ALERT_FROM_PHONE": FROM_PHONE,
"SIGNAL_ALERT_TO_PHONE": TO_PHONE,
}
mocker.patch(f"{SNAPSHOT_MANAGER}.getenv", side_effect=phone_numbers.get)
def patch_utcnow(mocker: MockerFixture, datetime_value: datetime) -> None:
@@ -34,6 +45,7 @@ def create_mock_snapshot(mocker: MockerFixture, name: str) -> Snapshot:
def test_main(mocker: MockerFixture, fs: FakeFilesystem) -> None:
"""Test main."""
load_config_data.cache_clear()
patch_phone_numbers(mocker)
mocker.patch(f"{SNAPSHOT_MANAGER}.get_time_stamp", return_value="2023-01-01T00:00:00")
@@ -58,12 +70,15 @@ def test_main(mocker: MockerFixture, fs: FakeFilesystem) -> None:
"daily": 0,
"monthly": 0,
},
FROM_PHONE,
TO_PHONE,
)
def test_main_create_snapshot_failure(mocker: MockerFixture, fs: FakeFilesystem) -> None:
"""Test main."""
load_config_data.cache_clear()
patch_phone_numbers(mocker)
mocker.patch(f"{SNAPSHOT_MANAGER}.get_time_stamp", return_value="2023-01-01T00:00:00")
@@ -78,7 +93,11 @@ def test_main_create_snapshot_failure(mocker: MockerFixture, fs: FakeFilesystem)
fs.create_file("/mock_snapshot_config.toml", contents=mock_snapshot_config_toml)
main(Path("/mock_snapshot_config.toml"))
mock_signal_alert.assert_called_once_with("test_dataset failed to create snapshot 2023-01-01T00:00:00")
mock_signal_alert.assert_called_once_with(
"test_dataset failed to create snapshot 2023-01-01T00:00:00",
FROM_PHONE,
TO_PHONE,
)
mock_get_datasets.assert_called_once()
mock_get_snapshots_to_delete.assert_not_called()
@@ -86,6 +105,7 @@ def test_main_create_snapshot_failure(mocker: MockerFixture, fs: FakeFilesystem)
def test_main_exception(mocker: MockerFixture, fs: FakeFilesystem) -> None:
"""Test main."""
load_config_data.cache_clear()
patch_phone_numbers(mocker)
mocker.patch(f"{SNAPSHOT_MANAGER}.get_time_stamp", return_value="2023-01-01T00:00:00")
@@ -103,7 +123,7 @@ def test_main_exception(mocker: MockerFixture, fs: FakeFilesystem) -> None:
assert isinstance(pytest_wrapped_e.value, SystemExit)
assert pytest_wrapped_e.value.code == 1
mock_signal_alert.assert_called_once_with("snapshot_manager failed")
mock_signal_alert.assert_called_once_with("snapshot_manager failed", FROM_PHONE, TO_PHONE)
mock_get_datasets.assert_called_once()
mock_get_snapshots_to_delete.assert_not_called()
@@ -120,7 +140,12 @@ def test_get_snapshots_to_delete(mocker: MockerFixture) -> None:
mock_signal_alert = mocker.patch(f"{SNAPSHOT_MANAGER}.signal_alert")
get_snapshots_to_delete(mock_dataset, {"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0})
get_snapshots_to_delete(
mock_dataset,
{"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0},
FROM_PHONE,
TO_PHONE,
)
mock_signal_alert.assert_not_called()
mock_dataset.delete_snapshot.assert_called_once_with("auto_202509150415")
@@ -135,7 +160,12 @@ def test_get_snapshots_to_delete_no_snapshot(mocker: MockerFixture) -> None:
mock_signal_alert = mocker.patch(f"{SNAPSHOT_MANAGER}.signal_alert")
get_snapshots_to_delete(mock_dataset, {"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0})
get_snapshots_to_delete(
mock_dataset,
{"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0},
FROM_PHONE,
TO_PHONE,
)
mock_signal_alert.assert_not_called()
mock_dataset.delete_snapshot.assert_not_called()
@@ -153,10 +183,17 @@ def test_get_snapshots_to_delete_errored(mocker: MockerFixture) -> None:
mock_signal_alert = mocker.patch(f"{SNAPSHOT_MANAGER}.signal_alert")
get_snapshots_to_delete(mock_dataset, {"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0})
get_snapshots_to_delete(
mock_dataset,
{"15_min": 1, "hourly": 0, "daily": 0, "monthly": 0},
FROM_PHONE,
TO_PHONE,
)
mock_signal_alert.assert_called_once_with(
"test_dataset@auto_202509150415 failed to delete: snapshot has dependent clones"
"test_dataset@auto_202509150415 failed to delete: snapshot has dependent clones",
FROM_PHONE,
TO_PHONE,
)
mock_dataset.delete_snapshot.assert_called_once_with("auto_202509150415")
users/richie/default.nix
+1
View File
@@ -41,6 +41,7 @@ in
"ollama"
"plugdev"
"scanner"
"signal-cli"
"transmission"
"uaccess"
"uucp"