command: move print_error() to CommandError.cxx

Prepare for splitting command.c.

1 files changed, 132 insertions, 0 deletions

diff --git a/src/CommandError.cxx b/src/CommandError.cxx
new file mode 100644
index 00000000..96b0095a
--- /dev/null
+++ b/src/CommandError.cxx
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2003-2012 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "CommandError.h"
+#include "db_error.h"
+
+extern "C" {
+#include "protocol/result.h"
+}
+
+#include <assert.h>
+#include <errno.h>
+
+enum command_return
+print_playlist_result(struct client *client, enum playlist_result result)
+{
+	switch (result) {
+	case PLAYLIST_RESULT_SUCCESS:
+		return COMMAND_RETURN_OK;
+
+	case PLAYLIST_RESULT_ERRNO:
+		command_error(client, ACK_ERROR_SYSTEM, "%s",
+			      g_strerror(errno));
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_DENIED:
+		command_error(client, ACK_ERROR_PERMISSION, "Access denied");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_NO_SUCH_SONG:
+		command_error(client, ACK_ERROR_NO_EXIST, "No such song");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_NO_SUCH_LIST:
+		command_error(client, ACK_ERROR_NO_EXIST, "No such playlist");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_LIST_EXISTS:
+		command_error(client, ACK_ERROR_EXIST,
+			      "Playlist already exists");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_BAD_NAME:
+		command_error(client, ACK_ERROR_ARG,
+			      "playlist name is invalid: "
+			      "playlist names may not contain slashes,"
+			      " newlines or carriage returns");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_BAD_RANGE:
+		command_error(client, ACK_ERROR_ARG, "Bad song index");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_NOT_PLAYING:
+		command_error(client, ACK_ERROR_PLAYER_SYNC, "Not playing");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_TOO_LARGE:
+		command_error(client, ACK_ERROR_PLAYLIST_MAX,
+			      "playlist is at the max size");
+		return COMMAND_RETURN_ERROR;
+
+	case PLAYLIST_RESULT_DISABLED:
+		command_error(client, ACK_ERROR_UNKNOWN,
+			      "stored playlist support is disabled");
+		return COMMAND_RETURN_ERROR;
+	}
+
+	assert(0);
+	return COMMAND_RETURN_ERROR;
+}
+
+/**
+ * Send the GError to the client and free the GError.
+ */
+enum command_return
+print_error(struct client *client, GError *error)
+{
+	assert(client != NULL);
+	assert(error != NULL);
+
+	g_warning("%s", error->message);
+
+	if (error->domain == playlist_quark()) {
+		enum playlist_result result = (playlist_result)error->code;
+		g_error_free(error);
+		return print_playlist_result(client, result);
+	} else if (error->domain == ack_quark()) {
+		command_error(client, (ack)error->code, "%s", error->message);
+		g_error_free(error);
+		return COMMAND_RETURN_ERROR;
+	} else if (error->domain == db_quark()) {
+		switch ((enum db_error)error->code) {
+		case DB_DISABLED:
+			command_error(client, ACK_ERROR_NO_EXIST, "%s",
+				      error->message);
+			g_error_free(error);
+			return COMMAND_RETURN_ERROR;
+
+		case DB_NOT_FOUND:
+			g_error_free(error);
+			command_error(client, ACK_ERROR_NO_EXIST, "Not found");
+			return COMMAND_RETURN_ERROR;
+		}
+	} else if (error->domain == g_file_error_quark()) {
+		command_error(client, ACK_ERROR_SYSTEM, "%s",
+			      g_strerror(error->code));
+		g_error_free(error);
+		return COMMAND_RETURN_ERROR;
+	}
+
+	g_error_free(error);
+	command_error(client, ACK_ERROR_UNKNOWN, "error");
+	return COMMAND_RETURN_ERROR;
+}