datasette/datasette/handle_exception.py

74 wiersze
2.1 KiB
Python

from datasette import hookimpl, Response
from .utils import add_cors_headers
from .utils.asgi import (
Base400,
)
from .views.base import DatasetteError
from markupsafe import Markup
import pdb
import traceback
try:
import rich
except ImportError:
rich = None
@hookimpl(trylast=True)
def handle_exception(datasette, request, exception):
async def inner():
if datasette.pdb:
pdb.post_mortem(exception.__traceback__)
if rich is not None:
rich.get_console().print_exception(show_locals=True)
title = None
if isinstance(exception, Base400):
status = exception.status
info = {}
message = exception.args[0]
elif isinstance(exception, DatasetteError):
status = exception.status
info = exception.error_dict
message = exception.message
if exception.message_is_html:
message = Markup(message)
title = exception.title
else:
status = 500
info = {}
message = str(exception)
traceback.print_exc()
templates = [f"{status}.html", "error.html"]
info.update(
{
"ok": False,
"error": message,
"status": status,
"title": title,
}
)
headers = {}
if datasette.cors:
add_cors_headers(headers)
if request.path.split("?")[0].endswith(".json"):
return Response.json(info, status=status, headers=headers)
else:
environment = datasette.get_jinja_environment(request)
template = environment.select_template(templates)
return Response.html(
await template.render_async(
dict(
info,
urls=datasette.urls,
app_css_hash=datasette.app_css_hash(),
menu_links=lambda: [],
)
),
status=status,
headers=headers,
)
return inner