def handle_500(e):
    """General Error Page"""
    client_addr = get_ipaddr()
    count_errors.labels(500, e, client_addr, None, None, None).inc()
    logger.error(f"Error: {e}, Source: {client_addr}")
    html = render.html("500")
    return html, 500
def handle_429(e):
    """Renders full error page for too many site queries"""
    html = render.html("429")
    client_addr = get_ipaddr()
    count_ratelimit.labels(e, client_addr).inc()
    logger.error(f"Error: {e}, Source: {client_addr}")
    return html, 429
def handle_404(e):
    """Renders full error page for invalid URI"""
    html = render.html("404")
    path = request.path
    client_addr = get_ipaddr()
    count_notfound.labels(e, path, client_addr).inc()
    logger.error(f"Error: {e}, Path: {path}, Source: {client_addr}")
    return html, 404
def test_route():
    """Test route for various tests"""
    html = render.html("500")
    return html, 500
def site():
    """Main front-end web application"""
    html = render.html("index")
    return html