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-rw-r--r--src/MessageCommands.cxx197
1 files changed, 197 insertions, 0 deletions
diff --git a/src/MessageCommands.cxx b/src/MessageCommands.cxx
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index 000000000..428470e60
--- /dev/null
+++ b/src/MessageCommands.cxx
@@ -0,0 +1,197 @@
+/*
+ * 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 "MessageCommands.hxx"
+
+extern "C" {
+#include "protocol/argparser.h"
+#include "protocol/result.h"
+#include "client_internal.h"
+#include "client_subscribe.h"
+}
+
+#include <assert.h>
+
+enum command_return
+handle_subscribe(struct client *client, G_GNUC_UNUSED int argc, char *argv[])
+{
+ assert(argc == 2);
+
+ switch (client_subscribe(client, argv[1])) {
+ case CLIENT_SUBSCRIBE_OK:
+ return COMMAND_RETURN_OK;
+
+ case CLIENT_SUBSCRIBE_INVALID:
+ command_error(client, ACK_ERROR_ARG,
+ "invalid channel name");
+ return COMMAND_RETURN_ERROR;
+
+ case CLIENT_SUBSCRIBE_ALREADY:
+ command_error(client, ACK_ERROR_EXIST,
+ "already subscribed to this channel");
+ return COMMAND_RETURN_ERROR;
+
+ case CLIENT_SUBSCRIBE_FULL:
+ command_error(client, ACK_ERROR_EXIST,
+ "subscription list is full");
+ return COMMAND_RETURN_ERROR;
+ }
+
+ /* unreachable */
+ return COMMAND_RETURN_OK;
+}
+
+enum command_return
+handle_unsubscribe(struct client *client, G_GNUC_UNUSED int argc, char *argv[])
+{
+ assert(argc == 2);
+
+ if (client_unsubscribe(client, argv[1]))
+ return COMMAND_RETURN_OK;
+ else {
+ command_error(client, ACK_ERROR_NO_EXIST,
+ "not subscribed to this channel");
+ return COMMAND_RETURN_ERROR;
+ }
+}
+
+struct channels_context {
+ GStringChunk *chunk;
+
+ GHashTable *channels;
+};
+
+static void
+collect_channels(gpointer data, gpointer user_data)
+{
+ struct channels_context *context =
+ (struct channels_context *)user_data;
+ const struct client *client = (const struct client *)data;
+
+ for (GSList *i = client->subscriptions; i != NULL;
+ i = g_slist_next(i)) {
+ const char *channel = (const char *)i->data;
+
+ if (g_hash_table_lookup(context->channels, channel) == NULL) {
+ char *channel2 = g_string_chunk_insert(context->chunk,
+ channel);
+ g_hash_table_insert(context->channels, channel2,
+ context);
+ }
+ }
+}
+
+static void
+print_channel(gpointer key, G_GNUC_UNUSED gpointer value, gpointer user_data)
+{
+ struct client *client = (struct client *)user_data;
+ const char *channel = (const char *)key;
+
+ client_printf(client, "channel: %s\n", channel);
+}
+
+enum command_return
+handle_channels(struct client *client,
+ G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
+{
+ assert(argc == 1);
+
+ struct channels_context context = {
+ g_string_chunk_new(1024),
+ g_hash_table_new(g_str_hash, g_str_equal),
+ };
+
+ client_list_foreach(collect_channels, &context);
+
+ g_hash_table_foreach(context.channels, print_channel, client);
+
+ g_hash_table_destroy(context.channels);
+ g_string_chunk_free(context.chunk);
+
+ return COMMAND_RETURN_OK;
+}
+
+enum command_return
+handle_read_messages(struct client *client,
+ G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
+{
+ assert(argc == 1);
+
+ GSList *messages = client_read_messages(client);
+
+ for (GSList *i = messages; i != NULL; i = g_slist_next(i)) {
+ struct client_message *msg = (struct client_message *)i->data;
+
+ client_printf(client, "channel: %s\nmessage: %s\n",
+ msg->channel, msg->message);
+ client_message_free(msg);
+ }
+
+ g_slist_free(messages);
+
+ return COMMAND_RETURN_OK;
+}
+
+struct send_message_context {
+ struct client_message msg;
+
+ bool sent;
+};
+
+static void
+send_message(gpointer data, gpointer user_data)
+{
+ struct send_message_context *context =
+ (struct send_message_context *)user_data;
+ struct client *client = (struct client *)data;
+
+ if (client_push_message(client, &context->msg))
+ context->sent = true;
+}
+
+enum command_return
+handle_send_message(struct client *client,
+ G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
+{
+ assert(argc == 3);
+
+ if (!client_message_valid_channel_name(argv[1])) {
+ command_error(client, ACK_ERROR_ARG,
+ "invalid channel name");
+ return COMMAND_RETURN_ERROR;
+ }
+
+ struct send_message_context context;
+ context.sent = false;
+
+ client_message_init(&context.msg, argv[1], argv[2]);
+
+ client_list_foreach(send_message, &context);
+
+ client_message_deinit(&context.msg);
+
+ if (context.sent)
+ return COMMAND_RETURN_OK;
+ else {
+ command_error(client, ACK_ERROR_NO_EXIST,
+ "nobody is subscribed to this channel");
+ return COMMAND_RETURN_ERROR;
+ }
+}