"""HTTP error handlers."""
import os
import traceback
from flask import flash, jsonify, redirect, render_template, request, session, url_for
from nexora.config import BASE_DIR, logger
from nexora.core import app
from nexora.utils.helpers import wants_json_response
@app.errorhandler(400)
def bad_request(_error):
if wants_json_response():
return jsonify({"ok": False, "status": "bad_request", "message": "Bad request."}), 400
if request.path.startswith("/admin"):
flash("Bad request. Please reload the admin page and try again.", "danger")
return redirect(url_for("admin_dashboard") if session.get("admin") else url_for("admin_login")), 302
flash("Bad request.", "danger")
return redirect(request.referrer or url_for("index")), 302
@app.errorhandler(403)
def forbidden(_error):
wants_json = request.is_json or request.headers.get("X-Requested-With") == "XMLHttpRequest"
if request.path.startswith("/admin/api") or (request.path.startswith("/admin") and wants_json):
return jsonify({"ok": False, "status": "forbidden", "message": "403 Forbidden: you do not have permission."}), 403
if request.path.startswith("/admin") or request.accept_mimetypes.best == "application/json":
return render_template("403.html"), 403
flash("You do not have permission to access this page.", "danger")
return redirect(request.referrer or url_for("index")), 302
@app.errorhandler(404)
def not_found(_error):
if wants_json_response():
return jsonify({"ok": False, "status": "not_found", "message": "Resource not found."}), 404
if request.path.startswith("/admin"):
flash("Admin page not found.", "danger")
return redirect(url_for("admin_dashboard") if session.get("admin") else url_for("admin_login")), 302
return render_template("404.html"), 404
@app.errorhandler(405)
def method_not_allowed(_error):
if wants_json_response():
return jsonify({"ok": False, "status": "method_not_allowed", "message": "Method not allowed."}), 405
if request.path.startswith("/admin"):
flash("That admin action needs to be submitted from the page again.", "warning")
return redirect(url_for("admin_dashboard") if session.get("admin") else url_for("admin_login")), 302
flash("This action is not allowed.", "danger")
return redirect(request.referrer or url_for("index")), 302
@app.errorhandler(429)
def rate_limited(_error):
if wants_json_response():
return jsonify({"ok": False, "status": "rate_limited", "message": "Too many requests. Please try again later."}), 429
flash("Too many requests. Please try again later.", "danger")
return redirect(request.referrer or url_for("index")), 302
@app.errorhandler(500)
def server_error(_error):
details = traceback.format_exc()
logger.exception("Internal server error on %s", request.path)
try:
(BASE_DIR / "runtime_error.log").write_text(details, encoding="utf-8")
except Exception:
pass
if os.environ.get("CPANEL_HEALTHCHECK_OK", "1") == "1":
import html
return (
""
"Nexora Runtime Error"
""
"Nexora runtime error
"
"The application started, but this request failed. Check runtime_error.log in the app root.
"
""
+ html.escape(details)
+ "",
200,
{"Content-Type": "text/html"},
)
if wants_json_response():
return jsonify({"ok": False, "status": "server_error", "message": "An internal error occurred. Please try again later."}), 500
if request.path.startswith("/admin"):
flash("Something went wrong. Please reload the admin page and try again.", "danger")
return redirect(url_for("admin_dashboard") if session.get("admin") else url_for("admin_login")), 302
return render_template("500.html"), 500
@app.errorhandler(413)
def too_large(_error):
flash("File too large. Please upload an image under 8 MB.", "danger")
return redirect(request.referrer or url_for("index")), 302