1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2017 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "mpdclient.h"
21 #include "callbacks.h"
22 #include "filelist.h"
23 #include "config.h"
24 #include "gidle.h"
25 #include "charset.h"
27 #ifdef ENABLE_ASYNC_CONNECT
28 #include "aconnect.h"
29 #endif
31 #include <mpd/client.h>
33 #include <assert.h>
35 static gboolean
36 mpdclient_enter_idle_callback(gpointer user_data)
37 {
38 struct mpdclient *c = user_data;
39 assert(c->enter_idle_source_id != 0);
40 assert(c->source != NULL);
41 assert(!c->idle);
43 c->enter_idle_source_id = 0;
44 c->idle = mpd_glib_enter(c->source);
45 return false;
46 }
48 static void
49 mpdclient_schedule_enter_idle(struct mpdclient *c)
50 {
51 assert(c != NULL);
52 assert(c->source != NULL);
54 if (c->enter_idle_source_id == 0)
55 /* automatically re-enter MPD "idle" mode */
56 c->enter_idle_source_id =
57 g_idle_add(mpdclient_enter_idle_callback, c);
58 }
60 static void
61 mpdclient_cancel_enter_idle(struct mpdclient *c)
62 {
63 if (c->enter_idle_source_id != 0) {
64 g_source_remove(c->enter_idle_source_id);
65 c->enter_idle_source_id = 0;
66 }
67 }
69 static void
70 mpdclient_invoke_error_callback(enum mpd_error error,
71 const char *message)
72 {
73 char *allocated;
74 if (error == MPD_ERROR_SERVER)
75 /* server errors are UTF-8, the others are locale */
76 message = allocated = utf8_to_locale(message);
77 else
78 allocated = NULL;
80 mpdclient_error_callback(message);
81 g_free(allocated);
82 }
84 static void
85 mpdclient_invoke_error_callback1(struct mpdclient *c)
86 {
87 assert(c != NULL);
88 assert(c->connection != NULL);
90 struct mpd_connection *connection = c->connection;
92 enum mpd_error error = mpd_connection_get_error(connection);
93 assert(error != MPD_ERROR_SUCCESS);
95 mpdclient_invoke_error_callback(error,
96 mpd_connection_get_error_message(connection));
97 }
99 static void
100 mpdclient_gidle_callback(enum mpd_error error,
101 gcc_unused enum mpd_server_error server_error,
102 const char *message, enum mpd_idle events,
103 void *ctx)
104 {
105 struct mpdclient *c = ctx;
107 c->idle = false;
109 assert(mpdclient_is_connected(c));
111 if (error != MPD_ERROR_SUCCESS) {
112 mpdclient_invoke_error_callback(error, message);
113 mpdclient_disconnect(c);
114 mpdclient_lost_callback();
115 return;
116 }
118 c->events |= events;
119 mpdclient_update(c);
121 mpdclient_idle_callback(c->events);
123 c->events = 0;
125 if (c->source != NULL)
126 mpdclient_schedule_enter_idle(c);
127 }
129 /****************************************************************************/
130 /*** mpdclient functions ****************************************************/
131 /****************************************************************************/
133 bool
134 mpdclient_handle_error(struct mpdclient *c)
135 {
136 enum mpd_error error = mpd_connection_get_error(c->connection);
138 assert(error != MPD_ERROR_SUCCESS);
140 if (error == MPD_ERROR_SERVER &&
141 mpd_connection_get_server_error(c->connection) == MPD_SERVER_ERROR_PERMISSION &&
142 mpdclient_auth_callback(c))
143 return true;
145 mpdclient_invoke_error_callback(error,
146 mpd_connection_get_error_message(c->connection));
148 if (!mpd_connection_clear_error(c->connection)) {
149 mpdclient_disconnect(c);
150 mpdclient_lost_callback();
151 }
153 return false;
154 }
156 struct mpdclient *
157 mpdclient_new(const gchar *host, unsigned port,
158 unsigned timeout_ms, const gchar *password)
159 {
160 struct mpdclient *c = g_new0(struct mpdclient, 1);
162 #ifdef ENABLE_ASYNC_CONNECT
163 c->settings = mpd_settings_new(host, port, timeout_ms,
164 NULL, NULL);
165 if (c->settings == NULL)
166 g_error("Out of memory");
167 #else
168 c->host = host;
169 c->port = port;
170 #endif
172 c->timeout_ms = timeout_ms;
173 c->password = password;
175 playlist_init(&c->playlist);
176 c->volume = -1;
177 c->events = 0;
178 c->playing = false;
180 return c;
181 }
183 void
184 mpdclient_free(struct mpdclient *c)
185 {
186 mpdclient_disconnect(c);
188 mpdclient_playlist_free(&c->playlist);
190 #ifdef ENABLE_ASYNC_CONNECT
191 mpd_settings_free(c->settings);
192 #endif
194 g_free(c);
195 }
197 static void
198 mpdclient_status_free(struct mpdclient *c)
199 {
200 if (c->status == NULL)
201 return;
203 mpd_status_free(c->status);
204 c->status = NULL;
206 c->volume = -1;
207 c->playing = false;
208 }
210 void
211 mpdclient_disconnect(struct mpdclient *c)
212 {
213 #ifdef ENABLE_ASYNC_CONNECT
214 if (c->async_connect != NULL) {
215 aconnect_cancel(c->async_connect);
216 c->async_connect = NULL;
217 }
218 #endif
220 mpdclient_cancel_enter_idle(c);
222 if (c->source != NULL) {
223 mpd_glib_free(c->source);
224 c->source = NULL;
225 c->idle = false;
226 }
228 if (c->connection) {
229 mpd_connection_free(c->connection);
230 ++c->connection_id;
231 }
232 c->connection = NULL;
234 mpdclient_status_free(c);
236 playlist_clear(&c->playlist);
238 if (c->song)
239 c->song = NULL;
241 /* everything has changed after a disconnect */
242 c->events |= MPD_IDLE_ALL;
243 }
245 static bool
246 mpdclient_connected(struct mpdclient *c,
247 struct mpd_connection *connection)
248 {
249 c->connection = connection;
251 if (mpd_connection_get_error(connection) != MPD_ERROR_SUCCESS) {
252 mpdclient_invoke_error_callback1(c);
253 mpdclient_disconnect(c);
254 mpdclient_failed_callback();
255 return false;
256 }
258 #ifdef ENABLE_ASYNC_CONNECT
259 if (c->timeout_ms > 0)
260 mpd_connection_set_timeout(connection, c->timeout_ms);
261 #endif
263 /* send password */
264 if (c->password != NULL &&
265 !mpd_run_password(connection, c->password)) {
266 mpdclient_invoke_error_callback1(c);
267 mpdclient_disconnect(c);
268 mpdclient_failed_callback();
269 return false;
270 }
272 c->source = mpd_glib_new(connection,
273 mpdclient_gidle_callback, c);
274 mpdclient_schedule_enter_idle(c);
276 ++c->connection_id;
278 mpdclient_connected_callback();
279 return true;
280 }
282 #ifdef ENABLE_ASYNC_CONNECT
284 static void
285 mpdclient_connect_success(struct mpd_connection *connection, void *ctx)
286 {
287 struct mpdclient *c = ctx;
288 assert(c->async_connect != NULL);
289 c->async_connect = NULL;
291 mpdclient_connected(c, connection);
292 }
294 static void
295 mpdclient_connect_error(const char *message, void *ctx)
296 {
297 struct mpdclient *c = ctx;
298 assert(c->async_connect != NULL);
299 c->async_connect = NULL;
301 mpdclient_error_callback(message);
302 mpdclient_failed_callback();
303 }
305 static const struct aconnect_handler mpdclient_connect_handler = {
306 .success = mpdclient_connect_success,
307 .error = mpdclient_connect_error,
308 };
310 #endif
312 void
313 mpdclient_connect(struct mpdclient *c)
314 {
315 /* close any open connection */
316 mpdclient_disconnect(c);
318 #ifdef ENABLE_ASYNC_CONNECT
319 aconnect_start(&c->async_connect,
320 mpd_settings_get_host(c->settings),
321 mpd_settings_get_port(c->settings),
322 &mpdclient_connect_handler, c);
323 #else
324 /* connect to MPD */
325 struct mpd_connection *connection =
326 mpd_connection_new(c->host, c->port, c->timeout_ms);
327 if (connection == NULL)
328 g_error("Out of memory");
330 mpdclient_connected(c, connection);
331 #endif
332 }
334 bool
335 mpdclient_update(struct mpdclient *c)
336 {
337 struct mpd_connection *connection = mpdclient_get_connection(c);
339 if (connection == NULL)
340 return false;
342 /* free the old status */
343 mpdclient_status_free(c);
345 /* retrieve new status */
346 c->status = mpd_run_status(connection);
347 if (c->status == NULL)
348 return mpdclient_handle_error(c);
350 c->volume = mpd_status_get_volume(c->status);
351 c->playing = mpd_status_get_state(c->status) == MPD_STATE_PLAY;
353 /* check if the playlist needs an update */
354 if (c->playlist.version != mpd_status_get_queue_version(c->status)) {
355 bool retval;
357 if (!playlist_is_empty(&c->playlist))
358 retval = mpdclient_playlist_update_changes(c);
359 else
360 retval = mpdclient_playlist_update(c);
361 if (!retval)
362 return false;
363 }
365 /* update the current song */
366 if (!c->song || mpd_status_get_song_id(c->status) >= 0) {
367 c->song = playlist_get_song(&c->playlist,
368 mpd_status_get_song_pos(c->status));
369 }
371 return true;
372 }
374 struct mpd_connection *
375 mpdclient_get_connection(struct mpdclient *c)
376 {
377 if (c->source != NULL && c->idle) {
378 c->idle = false;
379 mpd_glib_leave(c->source);
381 mpdclient_schedule_enter_idle(c);
382 }
384 return c->connection;
385 }
387 static struct mpd_status *
388 mpdclient_recv_status(struct mpdclient *c)
389 {
390 assert(c->connection != NULL);
392 struct mpd_status *status = mpd_recv_status(c->connection);
393 if (status == NULL) {
394 mpdclient_handle_error(c);
395 return NULL;
396 }
398 if (c->status != NULL)
399 mpd_status_free(c->status);
400 return c->status = status;
401 }
403 /****************************************************************************/
404 /*** MPD Commands **********************************************************/
405 /****************************************************************************/
407 bool
408 mpdclient_cmd_crop(struct mpdclient *c)
409 {
410 if (!mpdclient_is_playing(c))
411 return false;
413 int length = mpd_status_get_queue_length(c->status);
414 int current = mpd_status_get_song_pos(c->status);
415 if (current < 0 || mpd_status_get_queue_length(c->status) < 2)
416 return true;
418 struct mpd_connection *connection = mpdclient_get_connection(c);
419 if (connection == NULL)
420 return false;
422 mpd_command_list_begin(connection, false);
424 if (current < length - 1)
425 mpd_send_delete_range(connection, current + 1, length);
426 if (current > 0)
427 mpd_send_delete_range(connection, 0, current);
429 mpd_command_list_end(connection);
431 return mpdclient_finish_command(c);
432 }
434 bool
435 mpdclient_cmd_clear(struct mpdclient *c)
436 {
437 struct mpd_connection *connection = mpdclient_get_connection(c);
438 if (connection == NULL)
439 return false;
441 /* send "clear" and "status" */
442 if (!mpd_command_list_begin(connection, false) ||
443 !mpd_send_clear(connection) ||
444 !mpd_send_status(connection) ||
445 !mpd_command_list_end(connection))
446 return mpdclient_handle_error(c);
448 /* receive the new status, store it in the mpdclient struct */
450 struct mpd_status *status = mpdclient_recv_status(c);
451 if (status == NULL)
452 return false;
454 if (!mpd_response_finish(connection))
455 return mpdclient_handle_error(c);
457 /* update mpdclient.playlist */
459 if (mpd_status_get_queue_length(status) == 0) {
460 /* after the "clear" command, the queue is really
461 empty - this means we can clear it locally,
462 reducing the UI latency */
463 playlist_clear(&c->playlist);
464 c->playlist.version = mpd_status_get_queue_version(status);
465 c->song = NULL;
466 }
468 c->events |= MPD_IDLE_QUEUE;
469 return true;
470 }
472 bool
473 mpdclient_cmd_volume(struct mpdclient *c, gint value)
474 {
475 struct mpd_connection *connection = mpdclient_get_connection(c);
476 if (connection == NULL)
477 return false;
479 mpd_send_set_volume(connection, value);
480 return mpdclient_finish_command(c);
481 }
483 bool
484 mpdclient_cmd_volume_up(struct mpdclient *c)
485 {
486 if (c->volume < 0 || c->volume >= 100)
487 return true;
489 struct mpd_connection *connection = mpdclient_get_connection(c);
490 if (connection == NULL)
491 return false;
493 return mpdclient_cmd_volume(c, ++c->volume);
494 }
496 bool
497 mpdclient_cmd_volume_down(struct mpdclient *c)
498 {
499 if (c->volume <= 0)
500 return true;
502 struct mpd_connection *connection = mpdclient_get_connection(c);
503 if (connection == NULL)
504 return false;
506 return mpdclient_cmd_volume(c, --c->volume);
507 }
509 bool
510 mpdclient_cmd_add_path(struct mpdclient *c, const gchar *path_utf8)
511 {
512 struct mpd_connection *connection = mpdclient_get_connection(c);
513 if (connection == NULL)
514 return false;
516 return mpd_send_add(connection, path_utf8)?
517 mpdclient_finish_command(c) : false;
518 }
520 bool
521 mpdclient_cmd_add(struct mpdclient *c, const struct mpd_song *song)
522 {
523 assert(c != NULL);
524 assert(song != NULL);
526 struct mpd_connection *connection = mpdclient_get_connection(c);
527 if (connection == NULL || c->status == NULL)
528 return false;
530 /* send the add command to mpd; at the same time, get the new
531 status (to verify the new playlist id) and the last song
532 (we hope that's the song we just added) */
534 if (!mpd_command_list_begin(connection, true) ||
535 !mpd_send_add(connection, mpd_song_get_uri(song)) ||
536 !mpd_send_status(connection) ||
537 !mpd_send_get_queue_song_pos(connection,
538 playlist_length(&c->playlist)) ||
539 !mpd_command_list_end(connection) ||
540 !mpd_response_next(connection))
541 return mpdclient_handle_error(c);
543 c->events |= MPD_IDLE_QUEUE;
545 struct mpd_status *status = mpdclient_recv_status(c);
546 if (status == NULL)
547 return false;
549 if (!mpd_response_next(connection))
550 return mpdclient_handle_error(c);
552 struct mpd_song *new_song = mpd_recv_song(connection);
553 if (!mpd_response_finish(connection) || new_song == NULL) {
554 if (new_song != NULL)
555 mpd_song_free(new_song);
557 return mpd_connection_clear_error(connection) ||
558 mpdclient_handle_error(c);
559 }
561 if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) + 1 &&
562 mpd_status_get_queue_version(status) == c->playlist.version + 1) {
563 /* the cheap route: match on the new playlist length
564 and its version, we can keep our local playlist
565 copy in sync */
566 c->playlist.version = mpd_status_get_queue_version(status);
568 /* the song we just received has the correct id;
569 append it to the local playlist */
570 playlist_append(&c->playlist, new_song);
571 }
573 mpd_song_free(new_song);
575 return true;
576 }
578 bool
579 mpdclient_cmd_delete(struct mpdclient *c, gint idx)
580 {
581 struct mpd_connection *connection = mpdclient_get_connection(c);
583 if (connection == NULL || c->status == NULL)
584 return false;
586 if (idx < 0 || (guint)idx >= playlist_length(&c->playlist))
587 return false;
589 const struct mpd_song *song = playlist_get(&c->playlist, idx);
591 /* send the delete command to mpd; at the same time, get the
592 new status (to verify the playlist id) */
594 if (!mpd_command_list_begin(connection, false) ||
595 !mpd_send_delete_id(connection, mpd_song_get_id(song)) ||
596 !mpd_send_status(connection) ||
597 !mpd_command_list_end(connection))
598 return mpdclient_handle_error(c);
600 c->events |= MPD_IDLE_QUEUE;
602 struct mpd_status *status = mpdclient_recv_status(c);
603 if (status == NULL)
604 return false;
606 if (!mpd_response_finish(connection))
607 return mpdclient_handle_error(c);
609 if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - 1 &&
610 mpd_status_get_queue_version(status) == c->playlist.version + 1) {
611 /* the cheap route: match on the new playlist length
612 and its version, we can keep our local playlist
613 copy in sync */
614 c->playlist.version = mpd_status_get_queue_version(status);
616 /* remove the song from the local playlist */
617 playlist_remove(&c->playlist, idx);
619 /* remove references to the song */
620 if (c->song == song)
621 c->song = NULL;
622 }
624 return true;
625 }
627 bool
628 mpdclient_cmd_delete_range(struct mpdclient *c, unsigned start, unsigned end)
629 {
630 if (end == start + 1)
631 /* if that's not really a range, we choose to use the
632 safer "deleteid" version */
633 return mpdclient_cmd_delete(c, start);
635 struct mpd_connection *connection = mpdclient_get_connection(c);
636 if (connection == NULL)
637 return false;
639 /* send the delete command to mpd; at the same time, get the
640 new status (to verify the playlist id) */
642 if (!mpd_command_list_begin(connection, false) ||
643 !mpd_send_delete_range(connection, start, end) ||
644 !mpd_send_status(connection) ||
645 !mpd_command_list_end(connection))
646 return mpdclient_handle_error(c);
648 c->events |= MPD_IDLE_QUEUE;
650 struct mpd_status *status = mpdclient_recv_status(c);
651 if (status == NULL)
652 return false;
654 if (!mpd_response_finish(connection))
655 return mpdclient_handle_error(c);
657 if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - (end - start) &&
658 mpd_status_get_queue_version(status) == c->playlist.version + 1) {
659 /* the cheap route: match on the new playlist length
660 and its version, we can keep our local playlist
661 copy in sync */
662 c->playlist.version = mpd_status_get_queue_version(status);
664 /* remove the song from the local playlist */
665 while (end > start) {
666 --end;
668 /* remove references to the song */
669 if (c->song == playlist_get(&c->playlist, end))
670 c->song = NULL;
672 playlist_remove(&c->playlist, end);
673 }
674 }
676 return true;
677 }
679 bool
680 mpdclient_cmd_move(struct mpdclient *c, unsigned dest_pos, unsigned src_pos)
681 {
682 if (dest_pos == src_pos)
683 return true;
685 struct mpd_connection *connection = mpdclient_get_connection(c);
686 if (connection == NULL)
687 return false;
689 /* send the "move" command to MPD; at the same time, get the
690 new status (to verify the playlist id) */
692 if (!mpd_command_list_begin(connection, false) ||
693 !mpd_send_move(connection, src_pos, dest_pos) ||
694 !mpd_send_status(connection) ||
695 !mpd_command_list_end(connection))
696 return mpdclient_handle_error(c);
698 c->events |= MPD_IDLE_QUEUE;
700 struct mpd_status *status = mpdclient_recv_status(c);
701 if (status == NULL)
702 return false;
704 if (!mpd_response_finish(connection))
705 return mpdclient_handle_error(c);
707 if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) &&
708 mpd_status_get_queue_version(status) == c->playlist.version + 1) {
709 /* the cheap route: match on the new playlist length
710 and its version, we can keep our local playlist
711 copy in sync */
712 c->playlist.version = mpd_status_get_queue_version(status);
714 /* swap songs in the local playlist */
715 playlist_move(&c->playlist, dest_pos, src_pos);
716 }
718 return true;
719 }
721 /* The client-to-client protocol (MPD 0.17.0) */
723 bool
724 mpdclient_cmd_subscribe(struct mpdclient *c, const char *channel)
725 {
726 struct mpd_connection *connection = mpdclient_get_connection(c);
728 if (connection == NULL)
729 return false;
731 if (!mpd_send_subscribe(connection, channel))
732 return mpdclient_handle_error(c);
734 return mpdclient_finish_command(c);
735 }
737 bool
738 mpdclient_cmd_unsubscribe(struct mpdclient *c, const char *channel)
739 {
740 struct mpd_connection *connection = mpdclient_get_connection(c);
741 if (connection == NULL)
742 return false;
744 if (!mpd_send_unsubscribe(connection, channel))
745 return mpdclient_handle_error(c);
747 return mpdclient_finish_command(c);
748 }
750 bool
751 mpdclient_cmd_send_message(struct mpdclient *c, const char *channel,
752 const char *text)
753 {
754 struct mpd_connection *connection = mpdclient_get_connection(c);
755 if (connection == NULL)
756 return false;
758 if (!mpd_send_send_message(connection, channel, text))
759 return mpdclient_handle_error(c);
761 return mpdclient_finish_command(c);
762 }
764 bool
765 mpdclient_send_read_messages(struct mpdclient *c)
766 {
767 struct mpd_connection *connection = mpdclient_get_connection(c);
768 if (connection == NULL)
769 return false;
771 return mpd_send_read_messages(connection)?
772 true : mpdclient_handle_error(c);
773 }
775 struct mpd_message *
776 mpdclient_recv_message(struct mpdclient *c)
777 {
778 struct mpd_connection *connection = mpdclient_get_connection(c);
779 if (connection == NULL)
780 return false;
782 struct mpd_message *message = mpd_recv_message(connection);
783 if (message == NULL &&
784 mpd_connection_get_error(connection) != MPD_ERROR_SUCCESS)
785 mpdclient_handle_error(c);
787 return message;
788 }
790 /****************************************************************************/
791 /*** Playlist management functions ******************************************/
792 /****************************************************************************/
794 /* update playlist */
795 bool
796 mpdclient_playlist_update(struct mpdclient *c)
797 {
798 struct mpd_connection *connection = mpdclient_get_connection(c);
799 if (connection == NULL)
800 return false;
802 playlist_clear(&c->playlist);
804 mpd_send_list_queue_meta(connection);
806 struct mpd_entity *entity;
807 while ((entity = mpd_recv_entity(connection))) {
808 if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
809 playlist_append(&c->playlist, mpd_entity_get_song(entity));
811 mpd_entity_free(entity);
812 }
814 c->playlist.version = mpd_status_get_queue_version(c->status);
815 c->song = NULL;
817 return mpdclient_finish_command(c);
818 }
820 /* update playlist (plchanges) */
821 bool
822 mpdclient_playlist_update_changes(struct mpdclient *c)
823 {
824 struct mpd_connection *connection = mpdclient_get_connection(c);
826 if (connection == NULL)
827 return false;
829 mpd_send_queue_changes_meta(connection, c->playlist.version);
831 struct mpd_song *song;
832 while ((song = mpd_recv_song(connection)) != NULL) {
833 int pos = mpd_song_get_pos(song);
835 if (pos >= 0 && (guint)pos < c->playlist.list->len) {
836 /* update song */
837 playlist_replace(&c->playlist, pos, song);
838 } else {
839 /* add a new song */
840 playlist_append(&c->playlist, song);
841 }
843 mpd_song_free(song);
844 }
846 /* remove trailing songs */
848 unsigned length = mpd_status_get_queue_length(c->status);
849 while (length < c->playlist.list->len) {
850 guint pos = c->playlist.list->len - 1;
852 /* Remove the last playlist entry */
853 playlist_remove(&c->playlist, pos);
854 }
856 c->song = NULL;
857 c->playlist.version = mpd_status_get_queue_version(c->status);
859 return mpdclient_finish_command(c);
860 }
863 /****************************************************************************/
864 /*** Filelist functions *****************************************************/
865 /****************************************************************************/
867 bool
868 mpdclient_filelist_add_all(struct mpdclient *c, struct filelist *fl)
869 {
870 struct mpd_connection *connection = mpdclient_get_connection(c);
871 if (connection == NULL)
872 return false;
874 if (filelist_is_empty(fl))
875 return true;
877 mpd_command_list_begin(connection, false);
879 for (unsigned i = 0; i < filelist_length(fl); ++i) {
880 struct filelist_entry *entry = filelist_get(fl, i);
881 struct mpd_entity *entity = entry->entity;
883 if (entity != NULL &&
884 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
885 const struct mpd_song *song =
886 mpd_entity_get_song(entity);
888 mpd_send_add(connection, mpd_song_get_uri(song));
889 }
890 }
892 mpd_command_list_end(connection);
893 return mpdclient_finish_command(c);
894 }