1 files changed, 68 insertions, 0 deletions
diff --git a/src/imap/cmd-x-state.c b/src/imap/cmd-x-state.c
new file mode 100644
index 0000000..8809998
--- /dev/null
+++ b/src/imap/cmd-x-state.c
@@ -0,0 +1,68 @@
+/* Copyright (c) 2015-2018 Dovecot authors, see the included COPYING file */
+
+#include "imap-common.h"
+#include "base64.h"
+#include "str.h"
+#include "imap-commands.h"
+#include "imap-state.h"
+
+bool cmd_x_state(struct client_command_context *cmd)
+{
+	/* FIXME: state importing can cause unnecessarily large memory usage
+	   by specifying an old modseq, because the EXPUNGE/FETCH replies
+	   aren't currently sent asynchronously. so this command is disabled
+	   for now. */
+#if 0
+	const struct imap_arg *args;
+	const char *str, *error;
+	buffer_t *state, *state_encoded;
+	int ret;
+
+	if (!client_read_args(cmd, 0, 0, &args))
+		return FALSE;
+
+	state = buffer_create_dynamic(cmd->pool, 256);
+	if (imap_arg_get_astring(&args[0], &str)) {
+		if (cmd->client->mailbox != NULL) {
+			client_send_tagline(cmd,
+				"BAD Can't be used in SELECTED state");
+			return TRUE;
+		}
+		if (base64_decode(str, strlen(str), NULL, state) < 0)
+			ret = 0;
+		else {
+			ret = imap_state_import_external(cmd->client,
+				state->data, state->used, &error);
+		}
+		if (ret < 0) {
+			client_send_tagline(cmd, t_strdup_printf(
+				"NO Failed to restore state: %s", error));
+		} else if (ret == 0) {
+			client_send_tagline(cmd, t_strdup_printf(
+				"BAD Broken state: %s", error));
+		} else {
+			client_send_tagline(cmd, "OK State imported.");
+		}
+		return TRUE;
+	} else if (args[0].type == IMAP_ARG_EOL) {
+		if (!imap_state_export_external(cmd->client, state, &error)) {
+			client_send_tagline(cmd, t_strdup_printf(
+				"NO Can't save state: %s", error));
+			return TRUE;
+		}
+		state_encoded = buffer_create_dynamic(cmd->pool,
+				MAX_BASE64_ENCODED_SIZE(state->used)+10);
+		str_append(state_encoded, "* STATE ");
+		base64_encode(state->data, state->used, state_encoded);
+		client_send_line(cmd->client, str_c(state_encoded));
+		client_send_tagline(cmd, "OK State exported.");
+		return TRUE;
+	} else {
+		client_send_command_error(cmd, "Invalid arguments.");
+		return TRUE;
+	}
+#else
+	client_send_command_error(cmd, "Command is disabled for now.");
+	return TRUE;
+#endif
+}