owl-map/matcher/error_mail.py

65 lines
1.7 KiB
Python

"""Send mail to admins when there is an error."""
import logging
from logging import Formatter
from logging.handlers import SMTPHandler
import flask
PROJECT = "osm-wikidata"
class MatcherSMTPHandler(SMTPHandler):
"""Custom SMTP handler to change subject line."""
def getSubject(self, record: logging.LogRecord) -> str: # noqa: N802
"""Return subject line for error mail."""
return (
f"{PROJECT} error: {record.exc_info[0].__name__}"
if (record.exc_info and record.exc_info[0])
else f"{PROJECT} error: {record.pathname}:{record.lineno:d}"
)
class RequestFormatter(Formatter):
"""Custom request formatter."""
def format(self, record: logging.LogRecord) -> str:
"""Add request to log record."""
record.request = flask.request
return super().format(record)
def setup_error_mail(app: flask.Flask) -> None:
"""Configure logging to catch errors and email them."""
if not app.config.get("ERROR_MAIL"):
return
formatter = RequestFormatter(
"""
Message type: {levelname}
Location: {pathname:s}:{lineno:d}
Module: {module:s}
Function: {funcName:s}
Time: {asctime:s}
GET args: {request.args!r}
URL: {request.url}
Message:
{message:s}
""",
style="{",
)
mail_handler = MatcherSMTPHandler(
app.config["SMTP_HOST"],
app.config["MAIL_FROM"],
app.config["ADMINS"],
app.name + " error",
)
mail_handler.setFormatter(formatter)
mail_handler.setLevel(logging.ERROR)
app.logger.propagate = True
app.logger.addHandler(mail_handler)