# Check if a slash should be appended
        if self.should_redirect_with_slash(request):
            path = self.get_full_path_with_slash(request)
        else:
            path = request.get_full_path()

def get_full_path_with_slash(self, request):
        """
        Return the full path of the request with a trailing slash appended.
        Raise a RuntimeError if settings.DEBUG is True and request.method is
        POST, PUT, or PATCH.
        """
        new_path = request.get_full_path(force_append_slash=True)
        if settings.DEBUG and request.method in ('POST', 'PUT', 'PATCH'):
            raise RuntimeError(
                "You called this URL via %(method)s, but the URL doesn't end "
                "in a slash and you have APPEND_SLASH set. Django can't "
                "redirect to the slash URL while maintaining %(method)s data. "
                "Change your form to point to %(url)s (note the trailing "
                "slash), or set APPEND_SLASH=False in your Django settings." % {
                    'method': request.method,
                    'url': request.get_host() + new_path,
                }
            )
        return new_path

# Return a redirect if necessary
        if redirect_url or path != request.get_full_path():
            redirect_url += path
            return self.response_redirect_class(redirect_url)

class HttpResponseRedirectBase(HttpResponse):
    allowed_schemes = ['http', 'https', 'ftp']

    def __init__(self, redirect_to, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self['Location'] = iri_to_uri(redirect_to)
        parsed = urlparse(str(redirect_to))
        if parsed.scheme and parsed.scheme not in self.allowed_schemes:
            raise DisallowedRedirect("Unsafe redirect to URL with protocol '%s'" % parsed.scheme)