src/mpdclient.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 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 */
  19
  20 #include "mpdclient.h"
  21 #include "filelist.h"
  22 #include "screen_client.h"
  23 #include "config.h"
  24 #include "options.h"
  25 #include "strfsong.h"
  26 #include "utils.h"
  27 #include "gidle.h"
  28
  29 #include <mpd/client.h>
  30
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33 #include <time.h>
  34 #include <string.h>
  35
  36 #define BUFSIZE 1024
  37
  38 /* sort by list-format */
  39 gint
  40 compare_filelistentry_format(gconstpointer filelist_entry1,
  41                              gconstpointer filelist_entry2)
  42 {
  43         const struct mpd_entity *e1, *e2;
  44         char key1[BUFSIZE], key2[BUFSIZE];
  45         int n = 0;
  46
  47         e1 = ((const struct filelist_entry *)filelist_entry1)->entity;
  48         e2 = ((const struct filelist_entry *)filelist_entry2)->entity;
  49
  50         if (e1 && e2 &&
  51             mpd_entity_get_type(e1) == MPD_ENTITY_TYPE_SONG &&
  52             mpd_entity_get_type(e2) == MPD_ENTITY_TYPE_SONG) {
  53                 strfsong(key1, BUFSIZE, options.list_format, mpd_entity_get_song(e1));
  54                 strfsong(key2, BUFSIZE, options.list_format, mpd_entity_get_song(e2));
  55                 n = strcmp(key1,key2);
  56         }
  57
  58         return n;
  59 }
  60
  61
  62 /****************************************************************************/
  63 /*** mpdclient functions ****************************************************/
  64 /****************************************************************************/
  65
  66 bool
  67 mpdclient_handle_error(struct mpdclient *c)
  68 {
  69         enum mpd_error error = mpd_connection_get_error(c->connection);
  70
  71         assert(error != MPD_ERROR_SUCCESS);
  72
  73         if (error == MPD_ERROR_SERVER &&
  74             mpd_connection_get_server_error(c->connection) == MPD_SERVER_ERROR_PERMISSION &&
  75             screen_auth(c))
  76                 return true;
  77
  78         mpdclient_ui_error(mpd_connection_get_error_message(c->connection));
  79
  80         if (!mpd_connection_clear_error(c->connection))
  81                 mpdclient_disconnect(c);
  82
  83         return false;
  84 }
  85
  86 static bool
  87 mpdclient_finish_command(struct mpdclient *c)
  88 {
  89         return mpd_response_finish(c->connection)
  90                 ? true : mpdclient_handle_error(c);
  91 }
  92
  93 struct mpdclient *
  94 mpdclient_new(void)
  95 {
  96         struct mpdclient *c;
  97
  98         c = g_new0(struct mpdclient, 1);
  99         playlist_init(&c->playlist);
 100         c->volume = -1;
 101         c->events = 0;
 102
 103         return c;
 104 }
 105
 106 void
 107 mpdclient_free(struct mpdclient *c)
 108 {
 109         mpdclient_disconnect(c);
 110
 111         mpdclient_playlist_free(&c->playlist);
 112
 113         g_free(c);
 114 }
 115
 116 void
 117 mpdclient_disconnect(struct mpdclient *c)
 118 {
 119         if (c->source != NULL) {
 120                 mpd_glib_free(c->source);
 121                 c->source = NULL;
 122                 c->idle = false;
 123         }
 124
 125         if (c->connection)
 126                 mpd_connection_free(c->connection);
 127         c->connection = NULL;
 128
 129         if (c->status)
 130                 mpd_status_free(c->status);
 131         c->status = NULL;
 132
 133         playlist_clear(&c->playlist);
 134
 135         if (c->song)
 136                 c->song = NULL;
 137
 138         /* everything has changed after a disconnect */
 139         c->events |= MPD_IDLE_DATABASE|MPD_IDLE_STORED_PLAYLIST|
 140                 MPD_IDLE_QUEUE|MPD_IDLE_PLAYER|MPD_IDLE_MIXER|MPD_IDLE_OUTPUT|
 141                 MPD_IDLE_OPTIONS|MPD_IDLE_UPDATE;
 142 }
 143
 144 bool
 145 mpdclient_connect(struct mpdclient *c,
 146                   const gchar *host,
 147                   gint port,
 148                   gfloat _timeout,
 149                   const gchar *password)
 150 {
 151         /* close any open connection */
 152         if( c->connection )
 153                 mpdclient_disconnect(c);
 154
 155         /* connect to MPD */
 156         c->connection = mpd_connection_new(host, port, _timeout * 1000);
 157         if (c->connection == NULL)
 158                 g_error("Out of memory");
 159
 160         if (mpd_connection_get_error(c->connection) != MPD_ERROR_SUCCESS) {
 161                 mpdclient_handle_error(c);
 162                 mpdclient_disconnect(c);
 163                 return false;
 164         }
 165
 166         /* send password */
 167         if (password != NULL && !mpd_run_password(c->connection, password)) {
 168                 mpdclient_handle_error(c);
 169                 mpdclient_disconnect(c);
 170                 return false;
 171         }
 172
 173         return true;
 174 }
 175
 176 bool
 177 mpdclient_update(struct mpdclient *c)
 178 {
 179         struct mpd_connection *connection = mpdclient_get_connection(c);
 180
 181         c->volume = -1;
 182
 183         if (connection == NULL)
 184                 return false;
 185
 186         /* always announce these options as long as we don't have
 187            "idle" support */
 188         if (c->source == NULL)
 189                 c->events |= MPD_IDLE_PLAYER|MPD_IDLE_OPTIONS;
 190
 191         /* free the old status */
 192         if (c->status)
 193                 mpd_status_free(c->status);
 194
 195         /* retrieve new status */
 196         c->status = mpd_run_status(connection);
 197         if (c->status == NULL)
 198                 return mpdclient_handle_error(c);
 199
 200         if (c->source == NULL &&
 201             c->update_id != mpd_status_get_update_id(c->status)) {
 202                 c->events |= MPD_IDLE_UPDATE;
 203
 204                 if (c->update_id > 0)
 205                         c->events |= MPD_IDLE_DATABASE;
 206         }
 207
 208         c->update_id = mpd_status_get_update_id(c->status);
 209
 210         if (c->source == NULL &&
 211             c->volume != mpd_status_get_volume(c->status))
 212                 c->events |= MPD_IDLE_MIXER;
 213
 214         c->volume = mpd_status_get_volume(c->status);
 215
 216         /* check if the playlist needs an update */
 217         if (c->playlist.version != mpd_status_get_queue_version(c->status)) {
 218                 bool retval;
 219
 220                 if (c->source == NULL)
 221                         c->events |= MPD_IDLE_QUEUE;
 222
 223                 if (!playlist_is_empty(&c->playlist))
 224                         retval = mpdclient_playlist_update_changes(c);
 225                 else
 226                         retval = mpdclient_playlist_update(c);
 227                 if (!retval)
 228                         return false;
 229         }
 230
 231         /* update the current song */
 232         if (!c->song || mpd_status_get_song_id(c->status)) {
 233                 c->song = playlist_get_song(&c->playlist,
 234                                             mpd_status_get_song_pos(c->status));
 235         }
 236
 237         return true;
 238 }
 239
 240 struct mpd_connection *
 241 mpdclient_get_connection(struct mpdclient *c)
 242 {
 243         if (c->source != NULL && c->idle) {
 244                 c->idle = false;
 245                 mpd_glib_leave(c->source);
 246         }
 247
 248         return c->connection;
 249 }
 250
 251 void
 252 mpdclient_put_connection(struct mpdclient *c)
 253 {
 254         assert(c->source == NULL || c->connection != NULL);
 255
 256         if (c->source != NULL && !c->idle) {
 257                 c->idle = mpd_glib_enter(c->source);
 258         }
 259 }
 260
 261 static struct mpd_status *
 262 mpdclient_recv_status(struct mpdclient *c)
 263 {
 264         struct mpd_status *status;
 265
 266         assert(c->connection != NULL);
 267
 268         status = mpd_recv_status(c->connection);
 269         if (status == NULL) {
 270                 mpdclient_handle_error(c);
 271                 return NULL;
 272         }
 273
 274         if (c->status != NULL)
 275                 mpd_status_free(c->status);
 276         return c->status = status;
 277 }
 278
 279 /****************************************************************************/
 280 /*** MPD Commands  **********************************************************/
 281 /****************************************************************************/
 282
 283 bool
 284 mpdclient_cmd_crop(struct mpdclient *c)
 285 {
 286         struct mpd_connection *connection;
 287         int length, current;
 288
 289         if (!mpdclient_is_playing(c))
 290                 return false;
 291
 292         length = mpd_status_get_queue_length(c->status);
 293         current = mpd_status_get_song_pos(c->status);
 294         if (current < 0 || mpd_status_get_queue_length(c->status) < 2)
 295                 return true;
 296
 297         connection = mpdclient_get_connection(c);
 298         if (connection == NULL)
 299                 return false;
 300
 301         mpd_command_list_begin(connection, false);
 302
 303         if (mpd_connection_cmp_server_version(connection, 0, 16, 0) >= 0) {
 304                 if (current < length - 1)
 305                         mpd_send_delete_range(connection, current + 1, length);
 306                 if (current > 0)
 307                         mpd_send_delete_range(connection, 0, current);
 308         } else
 309                 while (--length >= 0)
 310                         if (length != current)
 311                                 mpd_send_delete(connection, length);
 312
 313         mpd_command_list_end(connection);
 314
 315         return mpdclient_finish_command(c);
 316 }
 317
 318 bool
 319 mpdclient_cmd_clear(struct mpdclient *c)
 320 {
 321         struct mpd_connection *connection = mpdclient_get_connection(c);
 322         struct mpd_status *status;
 323
 324         if (connection == NULL)
 325                 return false;
 326
 327         /* send "clear" and "status" */
 328         if (!mpd_command_list_begin(connection, false) ||
 329             !mpd_send_clear(connection) ||
 330             !mpd_send_status(connection) ||
 331             !mpd_command_list_end(connection))
 332                 return mpdclient_handle_error(c);
 333
 334         /* receive the new status, store it in the mpdclient struct */
 335
 336         status = mpdclient_recv_status(c);
 337         if (status == NULL)
 338                 return false;
 339
 340         if (!mpd_response_finish(connection))
 341                 return mpdclient_handle_error(c);
 342
 343         /* update mpdclient.playlist */
 344
 345         if (mpd_status_get_queue_length(status) == 0) {
 346                 /* after the "clear" command, the queue is really
 347                    empty - this means we can clear it locally,
 348                    reducing the UI latency */
 349                 playlist_clear(&c->playlist);
 350                 c->playlist.version = mpd_status_get_queue_version(status);
 351         }
 352
 353         c->events |= MPD_IDLE_QUEUE;
 354         return true;
 355 }
 356
 357 bool
 358 mpdclient_cmd_volume(struct mpdclient *c, gint value)
 359 {
 360         struct mpd_connection *connection = mpdclient_get_connection(c);
 361         if (connection == NULL)
 362                 return false;
 363
 364         mpd_send_set_volume(connection, value);
 365         return mpdclient_finish_command(c);
 366 }
 367
 368 bool
 369 mpdclient_cmd_volume_up(struct mpdclient *c)
 370 {
 371         struct mpd_connection *connection = mpdclient_get_connection(c);
 372         if (connection == NULL)
 373                 return false;
 374
 375         if (c->status == NULL ||
 376             mpd_status_get_volume(c->status) == -1)
 377                 return true;
 378
 379         if (c->volume < 0)
 380                 c->volume = mpd_status_get_volume(c->status);
 381
 382         if (c->volume >= 100)
 383                 return true;
 384
 385         return mpdclient_cmd_volume(c, ++c->volume);
 386 }
 387
 388 bool
 389 mpdclient_cmd_volume_down(struct mpdclient *c)
 390 {
 391         struct mpd_connection *connection = mpdclient_get_connection(c);
 392         if (connection == NULL)
 393                 return false;
 394
 395         if (c->status == NULL || mpd_status_get_volume(c->status) < 0)
 396                 return true;
 397
 398         if (c->volume < 0)
 399                 c->volume = mpd_status_get_volume(c->status);
 400
 401         if (c->volume <= 0)
 402                 return true;
 403
 404         return mpdclient_cmd_volume(c, --c->volume);
 405 }
 406
 407 bool
 408 mpdclient_cmd_add_path(struct mpdclient *c, const gchar *path_utf8)
 409 {
 410         struct mpd_connection *connection = mpdclient_get_connection(c);
 411         if (connection == NULL)
 412                 return false;
 413
 414         mpd_send_add(connection, path_utf8);
 415         return mpdclient_finish_command(c);
 416 }
 417
 418 bool
 419 mpdclient_cmd_add(struct mpdclient *c, const struct mpd_song *song)
 420 {
 421         struct mpd_connection *connection = mpdclient_get_connection(c);
 422         struct mpd_status *status;
 423         struct mpd_song *new_song;
 424
 425         assert(c != NULL);
 426         assert(song != NULL);
 427
 428         if (connection == NULL || c->status == NULL)
 429                 return false;
 430
 431         /* send the add command to mpd; at the same time, get the new
 432            status (to verify the new playlist id) and the last song
 433            (we hope that's the song we just added) */
 434
 435         if (!mpd_command_list_begin(connection, true) ||
 436             !mpd_send_add(connection, mpd_song_get_uri(song)) ||
 437             !mpd_send_status(connection) ||
 438             !mpd_send_get_queue_song_pos(connection,
 439                                          playlist_length(&c->playlist)) ||
 440             !mpd_command_list_end(connection) ||
 441             !mpd_response_next(connection))
 442                 return mpdclient_handle_error(c);
 443
 444         c->events |= MPD_IDLE_QUEUE;
 445
 446         status = mpdclient_recv_status(c);
 447         if (status == NULL)
 448                 return false;
 449
 450         if (!mpd_response_next(connection))
 451                 return mpdclient_handle_error(c);
 452
 453         new_song = mpd_recv_song(connection);
 454         if (!mpd_response_finish(connection) || new_song == NULL) {
 455                 if (new_song != NULL)
 456                         mpd_song_free(new_song);
 457
 458                 return mpd_connection_clear_error(connection) ||
 459                         mpdclient_handle_error(c);
 460         }
 461
 462         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) + 1 &&
 463             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 464                 /* the cheap route: match on the new playlist length
 465                    and its version, we can keep our local playlist
 466                    copy in sync */
 467                 c->playlist.version = mpd_status_get_queue_version(status);
 468
 469                 /* the song we just received has the correct id;
 470                    append it to the local playlist */
 471                 playlist_append(&c->playlist, new_song);
 472         }
 473
 474         mpd_song_free(new_song);
 475
 476         return true;
 477 }
 478
 479 bool
 480 mpdclient_cmd_delete(struct mpdclient *c, gint idx)
 481 {
 482         struct mpd_connection *connection = mpdclient_get_connection(c);
 483         const struct mpd_song *song;
 484         struct mpd_status *status;
 485
 486         if (connection == NULL || c->status == NULL)
 487                 return false;
 488
 489         if (idx < 0 || (guint)idx >= playlist_length(&c->playlist))
 490                 return false;
 491
 492         song = playlist_get(&c->playlist, idx);
 493
 494         /* send the delete command to mpd; at the same time, get the
 495            new status (to verify the playlist id) */
 496
 497         if (!mpd_command_list_begin(connection, false) ||
 498             !mpd_send_delete_id(connection, mpd_song_get_id(song)) ||
 499             !mpd_send_status(connection) ||
 500             !mpd_command_list_end(connection))
 501                 return mpdclient_handle_error(c);
 502
 503         c->events |= MPD_IDLE_QUEUE;
 504
 505         status = mpdclient_recv_status(c);
 506         if (status == NULL)
 507                 return false;
 508
 509         if (!mpd_response_finish(connection))
 510                 return mpdclient_handle_error(c);
 511
 512         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - 1 &&
 513             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 514                 /* the cheap route: match on the new playlist length
 515                    and its version, we can keep our local playlist
 516                    copy in sync */
 517                 c->playlist.version = mpd_status_get_queue_version(status);
 518
 519                 /* remove the song from the local playlist */
 520                 playlist_remove(&c->playlist, idx);
 521
 522                 /* remove references to the song */
 523                 if (c->song == song)
 524                         c->song = NULL;
 525         }
 526
 527         return true;
 528 }
 529
 530 /**
 531  * Fallback for mpdclient_cmd_delete_range() on MPD older than 0.16.
 532  * It emulates the "delete range" command with a list of simple
 533  * "delete" commands.
 534  */
 535 static bool
 536 mpdclient_cmd_delete_range_fallback(struct mpdclient *c,
 537                                     unsigned start, unsigned end)
 538 {
 539         struct mpd_connection *connection = mpdclient_get_connection(c);
 540         if (connection == NULL)
 541                 return false;
 542
 543         if (!mpd_command_list_begin(connection, false))
 544                 return mpdclient_handle_error(c);
 545
 546         for (; start < end; --end)
 547                 mpd_send_delete(connection, start);
 548
 549         if (!mpd_command_list_end(connection) ||
 550             !mpd_response_finish(connection))
 551                 return mpdclient_handle_error(c);
 552
 553         return true;
 554 }
 555
 556 bool
 557 mpdclient_cmd_delete_range(struct mpdclient *c, unsigned start, unsigned end)
 558 {
 559         struct mpd_connection *connection;
 560         struct mpd_status *status;
 561
 562         if (end == start + 1)
 563                 /* if that's not really a range, we choose to use the
 564                    safer "deleteid" version */
 565                 return mpdclient_cmd_delete(c, start);
 566
 567         connection = mpdclient_get_connection(c);
 568         if (connection == NULL)
 569                 return false;
 570
 571         if (mpd_connection_cmp_server_version(connection, 0, 16, 0) < 0)
 572                 return mpdclient_cmd_delete_range_fallback(c, start, end);
 573
 574         /* MPD 0.16 supports "delete" with a range argument */
 575
 576         /* send the delete command to mpd; at the same time, get the
 577            new status (to verify the playlist id) */
 578
 579         if (!mpd_command_list_begin(connection, false) ||
 580             !mpd_send_delete_range(connection, start, end) ||
 581             !mpd_send_status(connection) ||
 582             !mpd_command_list_end(connection))
 583                 return mpdclient_handle_error(c);
 584
 585         c->events |= MPD_IDLE_QUEUE;
 586
 587         status = mpdclient_recv_status(c);
 588         if (status == NULL)
 589                 return false;
 590
 591         if (!mpd_response_finish(connection))
 592                 return mpdclient_handle_error(c);
 593
 594         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) - (end - start) &&
 595             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 596                 /* the cheap route: match on the new playlist length
 597                    and its version, we can keep our local playlist
 598                    copy in sync */
 599                 c->playlist.version = mpd_status_get_queue_version(status);
 600
 601                 /* remove the song from the local playlist */
 602                 while (end > start) {
 603                         --end;
 604
 605                         /* remove references to the song */
 606                         if (c->song == playlist_get(&c->playlist, end))
 607                                 c->song = NULL;
 608
 609                         playlist_remove(&c->playlist, end);
 610                 }
 611         }
 612
 613         return true;
 614 }
 615
 616 bool
 617 mpdclient_cmd_move(struct mpdclient *c, unsigned dest_pos, unsigned src_pos)
 618 {
 619         struct mpd_connection *connection;
 620         struct mpd_status *status;
 621
 622         if (dest_pos == src_pos)
 623                 return true;
 624
 625         connection = mpdclient_get_connection(c);
 626         if (connection == NULL)
 627                 return false;
 628
 629         /* send the "move" command to MPD; at the same time, get the
 630            new status (to verify the playlist id) */
 631
 632         if (!mpd_command_list_begin(connection, false) ||
 633             !mpd_send_move(connection, src_pos, dest_pos) ||
 634             !mpd_send_status(connection) ||
 635             !mpd_command_list_end(connection))
 636                 return mpdclient_handle_error(c);
 637
 638         c->events |= MPD_IDLE_QUEUE;
 639
 640         status = mpdclient_recv_status(c);
 641         if (status == NULL)
 642                 return false;
 643
 644         if (!mpd_response_finish(connection))
 645                 return mpdclient_handle_error(c);
 646
 647         if (mpd_status_get_queue_length(status) == playlist_length(&c->playlist) &&
 648             mpd_status_get_queue_version(status) == c->playlist.version + 1) {
 649                 /* the cheap route: match on the new playlist length
 650                    and its version, we can keep our local playlist
 651                    copy in sync */
 652                 c->playlist.version = mpd_status_get_queue_version(status);
 653
 654                 /* swap songs in the local playlist */
 655                 playlist_move(&c->playlist, dest_pos, src_pos);
 656         }
 657
 658         return true;
 659 }
 660
 661
 662 /****************************************************************************/
 663 /*** Playlist management functions ******************************************/
 664 /****************************************************************************/
 665
 666 /* update playlist */
 667 bool
 668 mpdclient_playlist_update(struct mpdclient *c)
 669 {
 670         struct mpd_connection *connection = mpdclient_get_connection(c);
 671         struct mpd_entity *entity;
 672
 673         if (connection == NULL)
 674                 return false;
 675
 676         playlist_clear(&c->playlist);
 677
 678         mpd_send_list_queue_meta(connection);
 679         while ((entity = mpd_recv_entity(connection))) {
 680                 if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 681                         playlist_append(&c->playlist, mpd_entity_get_song(entity));
 682
 683                 mpd_entity_free(entity);
 684         }
 685
 686         c->playlist.version = mpd_status_get_queue_version(c->status);
 687         c->song = NULL;
 688
 689         return mpdclient_finish_command(c);
 690 }
 691
 692 /* update playlist (plchanges) */
 693 bool
 694 mpdclient_playlist_update_changes(struct mpdclient *c)
 695 {
 696         struct mpd_connection *connection = mpdclient_get_connection(c);
 697         struct mpd_song *song;
 698         guint length;
 699
 700         if (connection == NULL)
 701                 return false;
 702
 703         mpd_send_queue_changes_meta(connection, c->playlist.version);
 704
 705         while ((song = mpd_recv_song(connection)) != NULL) {
 706                 int pos = mpd_song_get_pos(song);
 707
 708                 if (pos >= 0 && (guint)pos < c->playlist.list->len) {
 709                         /* update song */
 710                         playlist_replace(&c->playlist, pos, song);
 711                 } else {
 712                         /* add a new song */
 713                         playlist_append(&c->playlist, song);
 714                 }
 715
 716                 mpd_song_free(song);
 717         }
 718
 719         /* remove trailing songs */
 720
 721         length = mpd_status_get_queue_length(c->status);
 722         while (length < c->playlist.list->len) {
 723                 guint pos = c->playlist.list->len - 1;
 724
 725                 /* Remove the last playlist entry */
 726                 playlist_remove(&c->playlist, pos);
 727         }
 728
 729         c->song = NULL;
 730         c->playlist.version = mpd_status_get_queue_version(c->status);
 731
 732         return mpdclient_finish_command(c);
 733 }
 734
 735
 736 /****************************************************************************/
 737 /*** Filelist functions *****************************************************/
 738 /****************************************************************************/
 739
 740 bool
 741 mpdclient_filelist_add_all(struct mpdclient *c, struct filelist *fl)
 742 {
 743         struct mpd_connection *connection = mpdclient_get_connection(c);
 744         guint i;
 745
 746         if (connection == NULL)
 747                 return false;
 748
 749         if (filelist_is_empty(fl))
 750                 return true;
 751
 752         mpd_command_list_begin(connection, false);
 753
 754         for (i = 0; i < filelist_length(fl); ++i) {
 755                 struct filelist_entry *entry = filelist_get(fl, i);
 756                 struct mpd_entity *entity  = entry->entity;
 757
 758                 if (entity != NULL &&
 759                     mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 760                         const struct mpd_song *song =
 761                                 mpd_entity_get_song(entity);
 762
 763                         mpd_send_add(connection, mpd_song_get_uri(song));
 764                 }
 765         }
 766
 767         mpd_command_list_end(connection);
 768         return mpdclient_finish_command(c);
 769 }