static int
_create_container(struct gridd_filter_ctx_s *ctx)
{
	struct m2v2_create_params_s params;
	struct meta2_backend_s *m2b = meta2_filter_ctx_get_backend(ctx);
	struct hc_url_s *url = meta2_filter_ctx_get_url(ctx);
	GError *err = NULL;
	int retry = 2;

	params.storage_policy = meta2_filter_ctx_get_param(ctx, M2_KEY_STORAGE_POLICY);
	params.version_policy = meta2_filter_ctx_get_param(ctx, M2_KEY_VERSION_POLICY);
	params.local = (meta2_filter_ctx_get_param(ctx, "LOCAL") != NULL);

retry:
	err = meta2_backend_create_container(m2b, url, &params);
	if (err != NULL && err->code == CODE_REDIRECT && retry-- > 0 &&
			!g_strcmp0(err->message, meta2_backend_get_local_addr(m2b))) {
		GRID_WARN("Redirecting on myself!?! Retrying request immediately");
		g_clear_error(&err);
		hc_decache_reference_service(m2b->resolver, url, META2_TYPE_NAME);
		goto retry;
	}

	if (!err)
		return FILTER_OK;
	meta2_filter_ctx_set_error(ctx, err);
	return FILTER_KO;
}
int
meta2_filter_action_deduplicate_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	GString *status_message = NULL;

	// M2V2_MODE_DRYRUN, ...
	guint32 flags = 0;
	const char *fstr = meta2_filter_ctx_get_param(ctx, M2_KEY_GET_FLAGS);
	if (NULL != fstr)
		flags = (guint32) g_ascii_strtoull(fstr, NULL, 10);
	
	GError *err = meta2_backend_deduplicate_contents(
			meta2_filter_ctx_get_backend(ctx),
			meta2_filter_ctx_get_url(ctx),
			flags,
			&status_message);
	reply->did_write = TRUE;

	if (!err) {
		if (status_message != NULL)
			reply->add_body(metautils_gba_from_string(status_message->str));
		return FILTER_OK;
	} else {
		meta2_filter_ctx_set_error(ctx, err);
		return FILTER_KO;
	}
}
int
meta2_filter_action_purge_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	reply->did_write = TRUE;

	// M2V2_MODE_DRYRUN, ...
    guint32 flags = 0;
	struct on_bean_ctx_s *obc = _on_bean_ctx_init(ctx, reply);
    const char *fstr = meta2_filter_ctx_get_param(ctx, M2_KEY_GET_FLAGS);
    if (NULL != fstr)
        flags = (guint32) g_ascii_strtoull(fstr, NULL, 10);

	GError *err = meta2_backend_purge_container(
			meta2_filter_ctx_get_backend(ctx),
			meta2_filter_ctx_get_url(ctx), flags, _get_cb, obc);

	if (NULL != err) {
		GRID_DEBUG("Container purge failed (%d): %s", err->code, err->message);
		meta2_filter_ctx_set_error(ctx, err);
		return FILTER_KO;
	}

	_on_bean_ctx_send_list(obc, TRUE);
	_on_bean_ctx_clean(obc);
	return FILTER_OK;
}
int
meta2_filter_action_create_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	(void) reply;
	struct m2v2_create_params_s params = {NULL,NULL,NULL,0};
	struct meta2_backend_s *m2b = meta2_filter_ctx_get_backend(ctx);
	struct hc_url_s *url = meta2_filter_ctx_get_url(ctx);
	GError *err = NULL;
	int retry = 2;

	params.storage_policy = meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_STGPOLICY);
	params.version_policy = meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_VERPOLICY);
	params.local = (meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_LOCAL) != NULL);

	gchar **headers = metautils_message_get_field_names (reply->request);
	GPtrArray *tmp = g_ptr_array_new ();
	for (gchar **p=headers; *p ;++p) {
		if (!g_str_has_prefix(*p, NAME_MSGKEY_PREFIX_PROPERTY))
			continue;
		g_ptr_array_add (tmp, g_strdup((*p) + sizeof(NAME_MSGKEY_PREFIX_PROPERTY) - 1));
		g_ptr_array_add (tmp, metautils_message_extract_string_copy (reply->request, *p));
	}
	params.properties = (gchar**) metautils_gpa_to_array (tmp, TRUE);
	g_strfreev (headers);
	headers = NULL;

retry:
	err = meta2_backend_create_container(m2b, url, &params);
	if (err != NULL && err->code == CODE_REDIRECT && retry-- > 0 &&
			!g_strcmp0(err->message, meta2_backend_get_local_addr(m2b))) {
		GRID_WARN("Redirecting on myself!?! Retrying request immediately");
		g_clear_error(&err);
		hc_decache_reference_service(m2b->resolver, url, NAME_SRVTYPE_META2);
		goto retry;
	}

	g_strfreev (params.properties);
	params.properties = NULL;

	if (!err)
		return FILTER_OK;
	meta2_filter_ctx_set_error(ctx, err);
	return FILTER_KO;
}
int
meta2_filter_action_create_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	struct m2v2_create_params_s params = {NULL,NULL,NULL,0};
	struct meta2_backend_s *m2b = meta2_filter_ctx_get_backend(ctx);
	struct oio_url_s *url = meta2_filter_ctx_get_url(ctx);
	GError *err = NULL;
	int retry = 2;

	params.storage_policy = meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_STGPOLICY);
	params.version_policy = meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_VERPOLICY);
	params.local = (meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_LOCAL) != NULL);

	gsize len = 0;
	void *buf = metautils_message_get_BODY(reply->request, &len);
	err = KV_decode_buffer(buf, len, &params.properties);
	if (err) {
		meta2_filter_ctx_set_error(ctx, err);
		return FILTER_KO;
	}

	while (!err) {
		if (!(err = meta2_backend_create_container(m2b, url, &params)))
			break;
		if (err != NULL && err->code == CODE_REDIRECT && retry-- > 0 &&
			!g_strcmp0(err->message, meta2_backend_get_local_addr(m2b))) {
			GRID_WARN(
					"Redirecting on myself!?! Retrying request immediately");
			g_clear_error(&err);
			hc_decache_reference_service(m2b->resolver, url,
										 NAME_SRVTYPE_META2);
		}
	}

	g_strfreev(params.properties);
	params.properties = NULL;
	if (!err)
		return FILTER_OK;
	meta2_filter_ctx_set_error(ctx, err);
	return FILTER_KO;
}
int
meta2_filter_extract_header_string_size(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	GError *e = NULL;
	gchar buf[64];
	const char *opt = meta2_filter_ctx_get_param(ctx, "CONTENT_LENGTH_OPT");

	TRACE_FILTER();
	EXTRACT_STRING(NAME_MSGKEY_CONTENTLENGTH, (opt != NULL));
	return FILTER_OK;
}
int
meta2_filter_extract_header_copy(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	GError *e = NULL;
	char buf[512];

	TRACE_FILTER();
	EXTRACT_STRING(NAME_MSGKEY_COPY, TRUE);
	if (NULL != meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_COPY))
		meta2_filter_ctx_add_param(ctx, "BODY_OPT", "OK");
	return FILTER_OK;
}
int
meta2_filter_action_delete_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	guint32 flags = 0;

	flags |= meta2_filter_ctx_get_param(ctx, "FORCE") ? M2V2_DESTROY_FORCE : 0;
	flags |= meta2_filter_ctx_get_param(ctx, "FLUSH") ? M2V2_DESTROY_FLUSH : 0;
	flags |= meta2_filter_ctx_get_param(ctx, "PURGE") ? M2V2_DESTROY_PURGE : 0;
	flags |= meta2_filter_ctx_get_param(ctx, "LOCAL") ? M2V2_DESTROY_LOCAL : 0;

	GError *err = meta2_backend_destroy_container(
			meta2_filter_ctx_get_backend(ctx),
			meta2_filter_ctx_get_url(ctx),
			flags);

	reply->did_write = TRUE;

	if (!err)
		return FILTER_OK;
	meta2_filter_ctx_set_error(ctx, err);
	return FILTER_KO;
}
int
meta2_filter_action_delete_container(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	guint32 flags = 0;

	flags |= meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_FORCE) ? M2V2_DESTROY_FORCE : 0;
	flags |= meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_FLUSH) ? M2V2_DESTROY_FLUSH : 0;
	flags |= meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_PURGE) ? M2V2_DESTROY_PURGE : 0;
	flags |= meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_LOCAL) ? M2V2_DESTROY_LOCAL : 0;

	GError *err = meta2_backend_destroy_container(
			meta2_filter_ctx_get_backend(ctx),
			meta2_filter_ctx_get_url(ctx),
			flags);

	(void) reply;

	if (!err)
		return FILTER_OK;
	meta2_filter_ctx_set_error(ctx, err);
	return FILTER_KO;
}
static int
_list_S3(struct gridd_filter_ctx_s *ctx, struct gridd_reply_ctx_s *reply,
		struct list_params_s *lp)
{
	GError *e = NULL;
	struct meta2_backend_s *m2b = meta2_filter_ctx_get_backend(ctx);
	struct hc_url_s *url = meta2_filter_ctx_get_url(ctx);
	struct on_bean_ctx_s *obc = _on_bean_ctx_init(ctx, reply);
	GSList *common_prefixes = NULL;
	gint64 max = 0;
	gboolean truncated = FALSE;
	char *next_marker = NULL;

	GRID_DEBUG("S3 LISTING");
	lp->type = S3;
	lp->flags = lp->flags | M2V2_FLAG_HEADERS;
	lp->params.s3.prefix = meta2_filter_ctx_get_param(ctx,
			M2_KEY_PREFIX);
	lp->params.s3.marker = meta2_filter_ctx_get_param(ctx,
			M2_KEY_MARKER);
	lp->params.s3.delimiter = meta2_filter_ctx_get_param(ctx,
			M2_KEY_DELIMITER);
	const char *maxkeys_str = meta2_filter_ctx_get_param(ctx, M2_KEY_MAX_KEYS);
	if(NULL != maxkeys_str)
		lp->params.s3.maxkeys = g_ascii_strtoll(maxkeys_str, NULL, 10);
	lp->params.s3.maxkeys = (lp->params.s3.maxkeys > 0) ?
		lp->params.s3.maxkeys + 1 : 1001;

	max = lp->params.s3.maxkeys - 1;

	gboolean _is_directory(gpointer alias)
	{
		char *mtype = strstr(ALIASES_get_mdsys(alias)->str, "mime-type=");
		if (!mtype)
			return FALSE;
		return !g_ascii_strncasecmp("application/x-directory", mtype + 10, 23);
	}
int
meta2_filter_extract_header_spare(struct gridd_filter_ctx_s *ctx,
		struct gridd_reply_ctx_s *reply)
{
	GError *e = NULL;
	gchar buf[512];

	TRACE_FILTER();
	EXTRACT_OPT(NAME_MSGKEY_SPARE);
	const gchar *type = meta2_filter_ctx_get_param(ctx, NAME_MSGKEY_SPARE);

	if (type != NULL) {
		/* No content length in spare request */
		meta2_filter_ctx_add_param(ctx, "CONTENT_LENGTH_OPT", "OK");
	}

	// Body beans are required only when doing blacklist spare request
	if (type == NULL || g_ascii_strcasecmp(type, M2V2_SPARE_BY_BLACKLIST))
		meta2_filter_ctx_add_param(ctx, "BODY_OPT", "OK");
	return FILTER_OK;
}
int
meta2_filter_extract_body_beans(struct gridd_filter_ctx_s *ctx,
                struct gridd_reply_ctx_s *reply)
{
	GSList *l = NULL;
	const char *opt = meta2_filter_ctx_get_param(ctx, "BODY_OPT");

	TRACE_FILTER();

	/* get the message body */
	GError *err = metautils_message_extract_body_encoded (reply->request, (opt==NULL), &l, bean_sequence_decoder);
	if (err) {
		_bean_cleanl2 (l);
		meta2_filter_ctx_set_error(ctx, NEWERROR(CODE_BAD_REQUEST,
					"Invalid request, Empty / Invalid body"));
		return FILTER_KO;
	}

	meta2_filter_ctx_set_input_udata(ctx, l, (GDestroyNotify)_bean_cleanl2);
	return FILTER_OK;
}