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owntone-server/src/httpd_dacp.c
ejurgensen 68022d5c10 [dacp] Change update id's more often 
Sometimes the artwork changes, but the album does not (especially likely if we
are in a row of "Unknown album"-tracks)
2020-05-11 21:39:02 +02:00

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/*
* Copyright (C) 2010-2011 Julien BLACHE <jb@jblache.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <stdint.h>
#include <inttypes.h>
#ifdef HAVE_EVENTFD
# include <sys/eventfd.h>
#endif
#include <event2/event.h>
#include <event2/bufferevent.h>
#include "httpd_dacp.h"
#include "httpd_daap.h"
#include "logger.h"
#include "misc.h"
#include "conffile.h"
#include "artwork.h"
#include "dmap_common.h"
#include "db.h"
#include "daap_query.h"
#include "player.h"
#include "listener.h"
#define DACP_VOLUME_STEP 5
/* httpd event base, from httpd.c */
extern struct event_base *evbase_httpd;
struct dacp_update_request {
struct evhttp_request *req;
struct dacp_update_request *next;
};
typedef void (*dacp_propget)(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
typedef void (*dacp_propset)(const char *value, struct httpd_request *hreq);
struct dacp_prop_map {
char *desc;
dacp_propget propget;
dacp_propset propset;
};
/* ---------------- FORWARD - PROPERTIES GETTERS AND SETTERS ---------------- */
static void
dacp_propget_volume(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_volumecontrollable(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_playerstate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_shufflestate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_availableshufflestates(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_repeatstate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_availablerepeatstates(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_nowplaying(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_playingtime(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_fullscreenenabled(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_fullscreen(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_visualizerenabled(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_visualizer(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_itms_songid(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_haschapterdata(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_mediakind(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propget_extendedmediakind(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item);
static void
dacp_propset_volume(const char *value, struct httpd_request *hreq);
static void
dacp_propset_devicevolume(const char *value, struct httpd_request *hreq);
static void
dacp_propset_devicepreventplayback(const char *value, struct httpd_request *hreq);
static void
dacp_propset_devicebusy(const char *value, struct httpd_request *hreq);
static void
dacp_propset_playingtime(const char *value, struct httpd_request *hreq);
static void
dacp_propset_shufflestate(const char *value, struct httpd_request *hreq);
static void
dacp_propset_repeatstate(const char *value, struct httpd_request *hreq);
static void
dacp_propset_userrating(const char *value, struct httpd_request *hreq);
/* gperf static hash, dacp_prop.gperf */
#include "dacp_prop_hash.h"
/* Play status update */
#ifdef HAVE_EVENTFD
static int update_efd;
#else
static int update_pipe[2];
#endif
static struct event *updateev;
/* Next revision number the client should call with */
static int current_rev;
/* Play status update requests */
static struct dacp_update_request *update_requests;
/* Seek timer */
static struct event *seek_timer;
static int seek_target;
/* If an item is removed from the library while in the queue, we replace it with this */
static struct media_file_info dummy_mfi;
static struct db_queue_item dummy_queue_item;
/* -------------------------------- HELPERS --------------------------------- */
static void
dacp_nowplaying(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
uint32_t id;
int64_t songalbumid;
int pos_pl;
if ((status->status == PLAY_STOPPED) || !queue_item)
return;
/* Send bogus id's if playing internet radio or pipe, because clients like
* Remote and Retune will only update metadata (like artwork) if the id's
* change (which they wouldn't do if we sent the real ones)
* FIXME: Giving the client invalid ids on purpose is hardly ideal, but the
* clients don't seem to use these ids for anything other than rating.
*/
if (queue_item->data_kind == DATA_KIND_HTTP || queue_item->data_kind == DATA_KIND_PIPE)
{
// Could also use queue_item->queue_version, but it changes a bit too much
// leading to Remote reloading too much
if (queue_item->artwork_url)
id = djb_hash(queue_item->artwork_url, strlen(queue_item->artwork_url));
else
id = djb_hash(queue_item->title, strlen(queue_item->title));
songalbumid = (int64_t)id;
}
else
{
id = status->id;
songalbumid = queue_item->songalbumid;
}
pos_pl = db_queue_get_pos(status->item_id, 0);
dmap_add_container(evbuf, "canp", 16);
dmap_add_raw_uint32(evbuf, 1); /* Database */
dmap_add_raw_uint32(evbuf, status->plid);
dmap_add_raw_uint32(evbuf, pos_pl);
dmap_add_raw_uint32(evbuf, id);
dmap_add_string(evbuf, "cann", queue_item->title);
dmap_add_string(evbuf, "cana", queue_item->artist);
dmap_add_string(evbuf, "canl", queue_item->album);
dmap_add_string(evbuf, "cang", queue_item->genre);
dmap_add_long(evbuf, "asai", songalbumid);
dmap_add_int(evbuf, "cmmk", 1);
}
static void
dacp_playingtime(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
if ((status->status == PLAY_STOPPED) || !queue_item)
return;
if (queue_item->song_length)
dmap_add_int(evbuf, "cant", queue_item->song_length - status->pos_ms); /* Remaining time in ms */
else
dmap_add_int(evbuf, "cant", 0); /* Unknown remaining time */
dmap_add_int(evbuf, "cast", queue_item->song_length); /* Song length in ms */
}
static int
find_first_song_id(const char *query)
{
struct db_media_file_info dbmfi;
struct query_params qp;
int id;
int ret;
id = 0;
memset(&qp, 0, sizeof(struct query_params));
/* We only want the id of the first song */
qp.type = Q_ITEMS;
qp.idx_type = I_FIRST;
qp.sort = S_NONE;
qp.offset = 0;
qp.limit = 1;
qp.filter = daap_query_parse_sql(query);
if (!qp.filter)
{
DPRINTF(E_LOG, L_DACP, "Improper DAAP query!\n");
return -1;
}
ret = db_query_start(&qp);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not start query\n");
goto no_query_start;
}
if (((ret = db_query_fetch_file(&qp, &dbmfi)) == 0) && (dbmfi.id))
{
ret = safe_atoi32(dbmfi.id, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid song id in query result!\n");
goto no_result;
}
DPRINTF(E_DBG, L_DACP, "Found index song (id %d)\n", id);
ret = 1;
}
else
{
DPRINTF(E_LOG, L_DACP, "No song matches query (results %d): %s\n", qp.results, qp.filter);
goto no_result;
}
no_result:
db_query_end(&qp);
no_query_start:
if (qp.filter)
free(qp.filter);
if (ret == 1)
return id;
else
return -1;
}
static int
dacp_queueitem_add(const char *query, const char *queuefilter, const char *sort, int quirk, int mode)
{
struct media_file_info *mfi;
struct query_params qp;
int64_t albumid;
int64_t artistid;
int plid;
int id;
int ret;
int len;
char buf[1024];
struct player_status status;
if (query)
{
id = find_first_song_id(query);
if (id < 0)
return -1;
}
else
id = 0;
memset(&qp, 0, sizeof(struct query_params));
qp.offset = 0;
qp.limit = 0;
qp.sort = S_NONE;
qp.idx_type = I_NONE;
if (quirk)
{
qp.sort = S_ALBUM;
qp.type = Q_ITEMS;
mfi = db_file_fetch_byid(id);
if (!mfi)
return -1;
snprintf(buf, sizeof(buf), "f.songalbumid = %" PRIi64, mfi->songalbumid);
free_mfi(mfi, 0);
qp.filter = strdup(buf);
}
else if (queuefilter)
{
len = strlen(queuefilter);
if ((len > 6) && (strncmp(queuefilter, "album:", 6) == 0))
{
qp.type = Q_ITEMS;
ret = safe_atoi64(strchr(queuefilter, ':') + 1, &albumid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid album id in queuefilter: '%s'\n", queuefilter);
return -1;
}
snprintf(buf, sizeof(buf), "f.songalbumid = %" PRIi64, albumid);
qp.filter = strdup(buf);
}
else if ((len > 7) && (strncmp(queuefilter, "artist:", 7) == 0))
{
qp.type = Q_ITEMS;
ret = safe_atoi64(strchr(queuefilter, ':') + 1, &artistid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid artist id in queuefilter: '%s'\n", queuefilter);
return -1;
}
snprintf(buf, sizeof(buf), "f.songartistid = %" PRIi64, artistid);
qp.filter = strdup(buf);
}
else if ((len > 9) && (strncmp(queuefilter, "playlist:", 9) == 0))
{
qp.type = Q_PLITEMS;
ret = safe_atoi32(strchr(queuefilter, ':') + 1, &plid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid playlist id in queuefilter: '%s'\n", queuefilter);
return -1;
}
qp.id = plid;
qp.filter = strdup("1 = 1");
}
else if ((len > 6) && (strncmp(queuefilter, "genre:", 6) == 0))
{
qp.type = Q_ITEMS;
ret = snprintf(buf, sizeof(buf), "'daap.song%s'", queuefilter);
if (ret < 0 || ret >= sizeof(buf))
{
DPRINTF(E_LOG, L_DACP, "Invalid genre length in queuefilter: '%s'\n", queuefilter);
return -1;
}
qp.filter = daap_query_parse_sql(buf);
}
else
{
DPRINTF(E_LOG, L_DACP, "Unknown queuefilter '%s', query is '%s'\n", queuefilter, query);
// If the queuefilter is unkown, ignore it and use the query parameter instead to build the sql query
id = 0;
qp.type = Q_ITEMS;
qp.filter = daap_query_parse_sql(query);
}
}
else
{
id = 0;
qp.type = Q_ITEMS;
qp.filter = daap_query_parse_sql(query);
}
if (sort)
{
if (strcmp(sort, "name") == 0)
qp.sort = S_NAME;
else if (strcmp(sort, "album") == 0)
qp.sort = S_ALBUM;
else if (strcmp(sort, "artist") == 0)
qp.sort = S_ARTIST;
}
player_get_status(&status);
if (mode == 3)
ret = db_queue_add_by_queryafteritemid(&qp, status.item_id);
else
ret = db_queue_add_by_query(&qp, status.shuffle, status.item_id, -1, NULL, NULL);
if (qp.filter)
free(qp.filter);
if (ret < 0)
return -1;
if (status.shuffle && mode != 1)
return 0;
return id;
}
static int
playqueuecontents_add_source(struct evbuffer *songlist, uint32_t source_id, int pos_in_queue, uint32_t plid)
{
struct evbuffer *song;
struct media_file_info *mfi;
int ret;
CHECK_NULL(L_DACP, song = evbuffer_new());
CHECK_ERR(L_DACP, evbuffer_expand(song, 256));
mfi = db_file_fetch_byid(source_id);
if (!mfi)
{
DPRINTF(E_LOG, L_DACP, "Could not fetch file id %d\n", source_id);
mfi = &dummy_mfi;
}
dmap_add_container(song, "ceQs", 16);
dmap_add_raw_uint32(song, 1); /* Database */
dmap_add_raw_uint32(song, plid);
dmap_add_raw_uint32(song, 0); /* Should perhaps be playlist index? */
dmap_add_raw_uint32(song, mfi->id);
dmap_add_string(song, "ceQn", mfi->title);
dmap_add_string(song, "ceQr", mfi->artist);
dmap_add_string(song, "ceQa", mfi->album);
dmap_add_string(song, "ceQg", mfi->genre);
dmap_add_long(song, "asai", mfi->songalbumid);
dmap_add_int(song, "cmmk", mfi->media_kind);
dmap_add_int(song, "casa", 1); /* Unknown */
dmap_add_int(song, "astm", mfi->song_length);
dmap_add_char(song, "casc", 1); /* Maybe an indication of extra data? */
dmap_add_char(song, "caks", 6); /* Unknown */
dmap_add_int(song, "ceQI", pos_in_queue);
dmap_add_container(songlist, "mlit", evbuffer_get_length(song));
ret = evbuffer_add_buffer(songlist, song);
evbuffer_free(song);
if (mfi != &dummy_mfi)
free_mfi(mfi, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not add song to songlist for playqueue-contents\n");
return ret;
}
return 0;
}
static int
playqueuecontents_add_queue_item(struct evbuffer *songlist, struct db_queue_item *queue_item, int pos_in_queue, uint32_t plid)
{
struct evbuffer *song;
int ret;
CHECK_NULL(L_DACP, song = evbuffer_new());
CHECK_ERR(L_DACP, evbuffer_expand(song, 256));
dmap_add_container(song, "ceQs", 16);
dmap_add_raw_uint32(song, 1); /* Database */
dmap_add_raw_uint32(song, plid);
dmap_add_raw_uint32(song, 0); /* Should perhaps be playlist index? */
dmap_add_raw_uint32(song, queue_item->file_id);
dmap_add_string(song, "ceQn", queue_item->title);
dmap_add_string(song, "ceQr", queue_item->artist);
dmap_add_string(song, "ceQa", queue_item->album);
dmap_add_string(song, "ceQg", queue_item->genre);
dmap_add_long(song, "asai", queue_item->songalbumid);
dmap_add_int(song, "cmmk", queue_item->media_kind);
dmap_add_int(song, "casa", 1); /* Unknown */
dmap_add_int(song, "astm", queue_item->song_length);
dmap_add_char(song, "casc", 1); /* Maybe an indication of extra data? */
dmap_add_char(song, "caks", 6); /* Unknown */
dmap_add_int(song, "ceQI", pos_in_queue);
dmap_add_container(songlist, "mlit", evbuffer_get_length(song));
ret = evbuffer_add_buffer(songlist, song);
evbuffer_free(song);
return ret;
}
static void
speaker_enum_cb(struct player_speaker_info *spk, void *arg)
{
struct evbuffer *evbuf;
int len;
evbuf = (struct evbuffer *)arg;
len = 8 + strlen(spk->name) + 28;
if (spk->selected)
len += 9;
if (spk->has_password)
len += 9;
if (spk->has_video)
len += 9;
CHECK_ERR(L_DACP, evbuffer_expand(evbuf, 71 + len));
dmap_add_container(evbuf, "mdcl", len); /* 8 + len */
if (spk->selected)
dmap_add_char(evbuf, "caia", 1); /* 9 */
if (spk->has_password)
dmap_add_char(evbuf, "cahp", 1); /* 9 */
if (spk->has_video)
dmap_add_char(evbuf, "caiv", 1); /* 9 */
dmap_add_string(evbuf, "minm", spk->name); /* 8 + len */
dmap_add_long(evbuf, "msma", spk->id); /* 16 */
dmap_add_int(evbuf, "cmvo", spk->relvol); /* 12 */
}
static int
speaker_get(struct player_speaker_info *speaker_info, struct httpd_request *hreq, const char *req_name)
{
struct evkeyvalq *headers;
const char *remote;
uint32_t active_remote;
int ret;
headers = evhttp_request_get_input_headers(hreq->req);
remote = evhttp_find_header(headers, "Active-Remote");
if (!headers || !remote || (safe_atou32(remote, &active_remote) < 0))
{
DPRINTF(E_LOG, L_DACP, "'%s' request from '%s' has invalid Active-Remote: '%s'\n", req_name, hreq->peer_address, remote);
return -1;
}
ret = player_speaker_get_byactiveremote(speaker_info, active_remote);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "'%s' request from '%s' has unknown Active-Remote: '%s'\n", req_name, hreq->peer_address, remote);
return -1;
}
return 0;
}
static int
speaker_volume_step(struct player_speaker_info *speaker_info, int step)
{
int new_volume;
new_volume = speaker_info->absvol + step;
// Make sure we are setting a correct value
new_volume = new_volume > 100 ? 100 : new_volume;
new_volume = new_volume < 0 ? 0 : new_volume;
return player_volume_setabs_speaker(speaker_info->id, new_volume);
}
static void
seek_timer_cb(int fd, short what, void *arg)
{
int ret;
DPRINTF(E_DBG, L_DACP, "Seek timer expired, target %d ms\n", seek_target);
ret = player_playback_seek(seek_target, PLAYER_SEEK_POSITION);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player failed to seek to %d ms\n", seek_target);
return;
}
ret = player_playback_start();
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Player returned an error for start after seek\n");
}
static int
dacp_request_authorize(struct httpd_request *hreq)
{
const char *param;
int32_t id;
int ret;
if (peer_address_is_trusted(hreq->peer_address))
return 0;
param = evhttp_find_header(hreq->query, "session-id");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "No session-id specified in request\n");
goto invalid;
}
ret = safe_atoi32(param, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid session-id specified in request: '%s'\n", param);
goto invalid;
}
if (!daap_session_is_valid(id))
{
DPRINTF(E_LOG, L_DACP, "Session %d does not exist\n", id);
goto invalid;
}
return 0;
invalid:
DPRINTF(E_LOG, L_DACP, "Unauthorized request '%s' from '%s' (is peer trusted in your config?)\n", hreq->uri_parsed->uri, hreq->peer_address);
httpd_send_error(hreq->req, 403, "Forbidden");
return -1;
}
/* ---------------------- UPDATE REQUESTS HANDLERS -------------------------- */
static int
make_playstatusupdate(struct evbuffer *evbuf)
{
struct player_status status;
struct db_queue_item *queue_item = NULL;
struct evbuffer *psu;
CHECK_NULL(L_DACP, psu = evbuffer_new());
CHECK_ERR(L_DACP, evbuffer_expand(psu, 256));
player_get_status(&status);
if (status.status != PLAY_STOPPED)
{
queue_item = db_queue_fetch_byitemid(status.item_id);
if (!queue_item)
{
DPRINTF(E_LOG, L_DACP, "Could not fetch item id %d (file id %d)\n", status.item_id, status.id);
queue_item = &dummy_queue_item;
}
}
dmap_add_int(psu, "mstt", 200); /* 12 */
dmap_add_int(psu, "cmsr", current_rev); /* 12 */
dmap_add_char(psu, "caps", status.status); /* 9 */ /* play status, 2 = stopped, 3 = paused, 4 = playing */
dmap_add_char(psu, "cash", status.shuffle); /* 9 */ /* shuffle, true/false */
dmap_add_char(psu, "carp", status.repeat); /* 9 */ /* repeat, 0 = off, 1 = repeat song, 2 = repeat (playlist) */
dmap_add_char(psu, "cafs", 0); /* 9 */ /* dacp.fullscreen */
dmap_add_char(psu, "cavs", 0); /* 9 */ /* dacp.visualizer */
dmap_add_char(psu, "cavc", 1); /* 9 */ /* volume controllable */
dmap_add_int(psu, "caas", 2); /* 12 */ /* available shuffle states */
dmap_add_int(psu, "caar", 6); /* 12 */ /* available repeat states */
dmap_add_char(psu, "cafe", 0); /* 9 */ /* dacp.fullscreenenabled */
dmap_add_char(psu, "cave", 0); /* 9 */ /* dacp.visualizerenabled */
if (queue_item)
{
dacp_nowplaying(psu, &status, queue_item);
dmap_add_int(psu, "casa", 1); /* 12 */ /* unknown */
dmap_add_int(psu, "astm", queue_item->song_length);
dmap_add_char(psu, "casc", 1); /* Maybe an indication of extra data? */
dmap_add_char(psu, "caks", 6); /* Unknown */
dacp_playingtime(psu, &status, queue_item);
if (queue_item != &dummy_queue_item)
free_queue_item(queue_item, 0);
}
dmap_add_char(psu, "casu", 1); /* 9 */ /* unknown */
dmap_add_char(psu, "ceQu", 0); /* 9 */ /* unknown */
dmap_add_container(evbuf, "cmst", evbuffer_get_length(psu)); /* 8 + len */
CHECK_ERR(L_DACP, evbuffer_add_buffer(evbuf, psu));
evbuffer_free(psu);
DPRINTF(E_DBG, L_DACP, "Replying to playstatusupdate with status %d and current_rev %d\n", status.status, current_rev);
return 0;
}
static void
playstatusupdate_cb(int fd, short what, void *arg)
{
struct dacp_update_request *ur;
struct evbuffer *evbuf;
struct evbuffer *update;
struct evhttp_connection *evcon;
uint8_t *buf;
size_t len;
int ret;
#ifdef HAVE_EVENTFD
eventfd_t count;
ret = eventfd_read(update_efd, &count);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not read playstatusupdate event counter: %s\n", strerror(errno));
goto readd;
}
#else
int dummy;
read(update_pipe[0], &dummy, sizeof(dummy));
#endif
current_rev++;
if (!update_requests)
goto readd;
CHECK_NULL(L_DACP, evbuf = evbuffer_new());
CHECK_NULL(L_DACP, update = evbuffer_new());
ret = make_playstatusupdate(update);
if (ret < 0)
goto out_free_update;
len = evbuffer_get_length(update);
for (ur = update_requests; update_requests; ur = update_requests)
{
update_requests = ur->next;
evcon = evhttp_request_get_connection(ur->req);
if (evcon)
evhttp_connection_set_closecb(evcon, NULL, NULL);
// Only copy buffer if we actually need to reuse it
if (ur->next)
{
buf = evbuffer_pullup(update, -1);
evbuffer_add(evbuf, buf, len);
httpd_send_reply(ur->req, HTTP_OK, "OK", evbuf, 0);
}
else
httpd_send_reply(ur->req, HTTP_OK, "OK", update, 0);
free(ur);
}
out_free_update:
evbuffer_free(update);
evbuffer_free(evbuf);
readd:
ret = event_add(updateev, NULL);
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Couldn't re-add event for playstatusupdate\n");
}
/* Thread: player */
static void
dacp_playstatus_update_handler(short event_mask)
{
int ret;
// Only send status update on player change events
if (!(event_mask & (LISTENER_PLAYER | LISTENER_VOLUME)))
return;
#ifdef HAVE_EVENTFD
ret = eventfd_write(update_efd, 1);
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Could not send status update event: %s\n", strerror(errno));
#else
int dummy = 42;
ret = write(update_pipe[1], &dummy, sizeof(dummy));
if (ret != sizeof(dummy))
DPRINTF(E_LOG, L_DACP, "Could not write to status update fd: %s\n", strerror(errno));
#endif
}
static void
update_fail_cb(struct evhttp_connection *evcon, void *arg)
{
struct dacp_update_request *ur;
struct dacp_update_request *p;
struct evhttp_connection *evc;
ur = (struct dacp_update_request *)arg;
DPRINTF(E_DBG, L_DACP, "Update request: client closed connection\n");
evc = evhttp_request_get_connection(ur->req);
if (evc)
evhttp_connection_set_closecb(evc, NULL, NULL);
if (ur == update_requests)
update_requests = ur->next;
else
{
for (p = update_requests; p && (p->next != ur); p = p->next)
;
if (!p)
{
DPRINTF(E_LOG, L_DACP, "WARNING: struct dacp_update_request not found in list; BUG!\n");
return;
}
p->next = ur->next;
}
evhttp_request_free(ur->req);
free(ur);
}
/* --------------------- PROPERTIES GETTERS AND SETTERS --------------------- */
static void
dacp_propget_volume(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_int(evbuf, "cmvo", status->volume);
}
static void
dacp_propget_volumecontrollable(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_char(evbuf, "cavc", 1);
}
static void
dacp_propget_playerstate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_char(evbuf, "caps", status->status);
}
static void
dacp_propget_shufflestate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_char(evbuf, "cash", status->shuffle);
}
static void
dacp_propget_availableshufflestates(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_int(evbuf, "caas", 2);
}
static void
dacp_propget_repeatstate(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_char(evbuf, "carp", status->repeat);
}
static void
dacp_propget_availablerepeatstates(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dmap_add_int(evbuf, "caar", 6);
}
static void
dacp_propget_nowplaying(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dacp_nowplaying(evbuf, status, queue_item);
}
static void
dacp_propget_playingtime(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
dacp_playingtime(evbuf, status, queue_item);
}
static void
dacp_propget_fullscreenenabled(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_fullscreen(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_visualizerenabled(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_visualizer(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_itms_songid(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_haschapterdata(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_mediakind(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
static void
dacp_propget_extendedmediakind(struct evbuffer *evbuf, struct player_status *status, struct db_queue_item *queue_item)
{
// TODO
}
/* Properties setters */
static void
dacp_propset_volume(const char *value, struct httpd_request *hreq)
{
const char *param;
uint64_t id;
int volume;
int ret;
ret = safe_atoi32(value, &volume);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "dmcp.volume argument doesn't convert to integer: %s\n", value);
return;
}
param = evhttp_find_header(hreq->query, "speaker-id");
if (param)
{
ret = safe_atou64(param, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid speaker ID in dmcp.volume request\n");
return;
}
player_volume_setrel_speaker(id, volume);
return;
}
param = evhttp_find_header(hreq->query, "include-speaker-id");
if (param)
{
ret = safe_atou64(param, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid speaker ID in dmcp.volume request\n");
return;
}
player_volume_setabs_speaker(id, volume);
return;
}
player_volume_set(volume);
}
static void
dacp_propset_devicevolume(const char *value, struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
if (speaker_get(&speaker_info, hreq, "device-volume") < 0)
return;
player_volume_update_speaker(speaker_info.id, value);
}
// See player.c:speaker_prevent_playback_set() for comments regarding
// prevent-playback and busy properties
static void
dacp_propset_devicepreventplayback(const char *value, struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
if (speaker_get(&speaker_info, hreq, "device-prevent-playback") < 0)
return;
if (value[0] == '1')
player_speaker_prevent_playback_set(speaker_info.id, true);
else if (value[0] == '0')
player_speaker_prevent_playback_set(speaker_info.id, false);
else
DPRINTF(E_LOG, L_DACP, "Request for setting device-prevent-playback has invalid value: '%s'\n", value);
}
static void
dacp_propset_devicebusy(const char *value, struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
if (speaker_get(&speaker_info, hreq, "device-busy") < 0)
return;
if (value[0] == '1')
player_speaker_busy_set(speaker_info.id, true);
else if (value[0] == '0')
player_speaker_busy_set(speaker_info.id, false);
else
DPRINTF(E_LOG, L_DACP, "Request for setting device-busy has invalid value: '%s'\n", value);
}
static void
dacp_propset_playingtime(const char *value, struct httpd_request *hreq)
{
struct timeval tv;
int ret;
ret = safe_atoi32(value, &seek_target);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "dacp.playingtime argument doesn't convert to integer: %s\n", value);
return;
}
evutil_timerclear(&tv);
tv.tv_usec = 200 * 1000;
evtimer_add(seek_timer, &tv);
}
static void
dacp_propset_shufflestate(const char *value, struct httpd_request *hreq)
{
int enable;
int ret;
ret = safe_atoi32(value, &enable);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "dacp.shufflestate argument doesn't convert to integer: %s\n", value);
return;
}
player_shuffle_set(enable);
}
static void
dacp_propset_repeatstate(const char *value, struct httpd_request *hreq)
{
int mode;
int ret;
ret = safe_atoi32(value, &mode);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "dacp.repeatstate argument doesn't convert to integer: %s\n", value);
return;
}
player_repeat_set(mode);
}
static void
dacp_propset_userrating(const char *value, struct httpd_request *hreq)
{
const char *param;
uint32_t itemid;
uint32_t rating;
int ret;
ret = safe_atou32(value, &rating);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "dacp.userrating argument doesn't convert to integer: %s\n", value);
return;
}
param = evhttp_find_header(hreq->query, "item-spec"); // Remote
if (!param)
param = evhttp_find_header(hreq->query, "song-spec"); // Retune
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Missing item-spec/song-spec parameter in dacp.userrating query\n");
return;
}
param = strchr(param, ':');
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Malformed item-spec/song-spec parameter in dacp.userrating query\n");
return;
}
param++;
if (strncmp(param, "0x", 2) == 0)
ret = safe_hextou32(param, &itemid);
else
ret = safe_atou32(param, &itemid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Couldn't convert item-spec/song-spec to an integer in dacp.userrating (%s)\n", param);
return;
}
ret = db_file_rating_update_byid(itemid, rating);
/* If no mfi, it may be because we sent an invalid nowplaying itemid. In this
* case request the real one from the player and default to that.
*/
if (ret == 0)
{
DPRINTF(E_WARN, L_DACP, "Invalid id %d for rating, defaulting to player id\n", itemid);
ret = player_playing_now(&itemid);
if (ret < 0)
{
DPRINTF(E_WARN, L_DACP, "Could not find an id for rating\n");
return;
}
ret = db_file_rating_update_byid(itemid, rating);
if (ret <= 0)
{
DPRINTF(E_WARN, L_DACP, "Could not find an id for rating\n");
return;
}
}
}
/* --------------------------- REPLY HANDLERS ------------------------------- */
static int
dacp_reply_ctrlint(struct httpd_request *hreq)
{
/* /ctrl-int */
CHECK_ERR(L_DACP, evbuffer_expand(hreq->reply, 256));
/* If tags are added or removed container sizes should be adjusted too */
dmap_add_container(hreq->reply, "caci", 194); /* 8, unknown dacp container - size of content */
dmap_add_int(hreq->reply, "mstt", 200); /* 12, dmap.status */
dmap_add_char(hreq->reply, "muty", 0); /* 9, dmap.updatetype */
dmap_add_int(hreq->reply, "mtco", 1); /* 12, dmap.specifiedtotalcount */
dmap_add_int(hreq->reply, "mrco", 1); /* 12, dmap.returnedcount */
dmap_add_container(hreq->reply, "mlcl", 141); /* 8, dmap.listing - size of content */
dmap_add_container(hreq->reply, "mlit", 133); /* 8, dmap.listingitem - size of content */
dmap_add_int(hreq->reply, "miid", 1); /* 12, dmap.itemid - database ID */
dmap_add_char(hreq->reply, "cmik", 1); /* 9, unknown */
dmap_add_int(hreq->reply, "cmpr", (2 << 16 | 2)); /* 12, dmcp.protocolversion */
dmap_add_int(hreq->reply, "capr", (2 << 16 | 5)); /* 12, dacp.protocolversion */
dmap_add_char(hreq->reply, "cmsp", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "aeFR", 0x64); /* 9, unknown */
dmap_add_char(hreq->reply, "cmsv", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "cass", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "caov", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "casu", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "ceSG", 1); /* 9, unknown */
dmap_add_char(hreq->reply, "cmrl", 1); /* 9, unknown */
dmap_add_long(hreq->reply, "ceSX", (1 << 1 | 1)); /* 16, unknown dacp - lowest bit announces support for playqueue-contents/-edit */
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
}
static int
dacp_reply_cue_play(struct httpd_request *hreq)
{
struct player_status status;
const char *sort;
const char *cuequery;
const char *param;
uint32_t pos;
int clear;
struct db_queue_item *queue_item = NULL;
struct player_history *history;
int ret;
/* /cue?command=play&query=...&sort=...&index=N */
param = evhttp_find_header(hreq->query, "clear-first");
if (param)
{
ret = safe_atoi32(param, &clear);
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Invalid clear-first value in cue request\n");
else if (clear)
{
player_playback_stop();
db_queue_clear(0);
}
}
player_get_status(&status);
cuequery = evhttp_find_header(hreq->query, "query");
if (cuequery)
{
sort = evhttp_find_header(hreq->query, "sort");
ret = dacp_queueitem_add(cuequery, NULL, sort, 0, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not build song queue\n");
dmap_send_error(hreq->req, "cacr", "Could not build song queue");
return -1;
}
}
else if (status.status != PLAY_STOPPED)
{
player_playback_stop();
}
param = evhttp_find_header(hreq->query, "dacp.shufflestate");
if (param)
dacp_propset_shufflestate(param, NULL);
pos = 0;
param = evhttp_find_header(hreq->query, "index");
if (param)
{
ret = safe_atou32(param, &pos);
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Invalid index (%s) in cue request\n", param);
}
/* If selection was from Up Next queue or history queue (command will be playnow), then index is relative */
if ((param = evhttp_find_header(hreq->query, "command")) && (strcmp(param, "playnow") == 0))
{
/* If mode parameter is -1 or 1, the index is relative to the history queue, otherwise to the Up Next queue */
param = evhttp_find_header(hreq->query, "mode");
if (param && ((strcmp(param, "-1") == 0) || (strcmp(param, "1") == 0)))
{
/* Play from history queue */
history = player_history_get();
if (history->count > pos)
{
pos = (history->start_index + history->count - pos - 1) % MAX_HISTORY_COUNT;
queue_item = db_queue_fetch_byitemid(history->item_id[pos]);
if (!queue_item)
{
DPRINTF(E_LOG, L_DACP, "Could not start playback from history\n");
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
}
else
{
DPRINTF(E_LOG, L_DACP, "Could not start playback from history\n");
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
}
else
{
/* Play from Up Next queue */
if (status.status == PLAY_STOPPED && pos > 0)
pos--;
queue_item = db_queue_fetch_byposrelativetoitem(pos, status.item_id, status.shuffle);
if (!queue_item)
{
DPRINTF(E_LOG, L_DACP, "Could not fetch item from queue: pos=%d, now playing=%d\n", pos, status.item_id);
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
}
}
else
{
queue_item = db_queue_fetch_bypos(pos, status.shuffle);
if (!queue_item)
{
DPRINTF(E_LOG, L_DACP, "Could not fetch item from queue: pos=%d\n", pos);
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
}
ret = player_playback_start_byitem(queue_item);
free_queue_item(queue_item, 0);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not start playback\n");
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
player_get_status(&status);
CHECK_ERR(L_DACP, evbuffer_expand(hreq->reply, 64));
dmap_add_container(hreq->reply, "cacr", 24); /* 8 + len */
dmap_add_int(hreq->reply, "mstt", 200); /* 12 */
dmap_add_int(hreq->reply, "miid", status.id);/* 12 */
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
}
static int
dacp_reply_cue_clear(struct httpd_request *hreq)
{
/* /cue?command=clear */
player_playback_stop();
db_queue_clear(0);
CHECK_ERR(L_DACP, evbuffer_expand(hreq->reply, 64));
dmap_add_container(hreq->reply, "cacr", 24); /* 8 + len */
dmap_add_int(hreq->reply, "mstt", 200); /* 12 */
dmap_add_int(hreq->reply, "miid", 0); /* 12 */
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
}
static int
dacp_reply_cue(struct httpd_request *hreq)
{
const char *param;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "command");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "No command in cue request\n");
dmap_send_error(hreq->req, "cacr", "No command in cue request");
return -1;
}
if (strcmp(param, "clear") == 0)
return dacp_reply_cue_clear(hreq);
else if (strcmp(param, "play") == 0)
return dacp_reply_cue_play(hreq);
else
{
DPRINTF(E_LOG, L_DACP, "Unknown cue command %s\n", param);
dmap_send_error(hreq->req, "cacr", "Unknown command in cue request");
return -1;
}
}
static int
dacp_reply_play(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
player_playback_start();
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playspec(struct httpd_request *hreq)
{
struct player_status status;
const char *param;
const char *shuffle;
uint32_t plid;
uint32_t id;
struct db_queue_item *queue_item = NULL;
int ret;
/* /ctrl-int/1/playspec?database-spec='dmap.persistentid:0x1'&container-spec='dmap.persistentid:0x5'&container-item-spec='dmap.containeritemid:0x9'
* or (Apple Remote when playing a Podcast)
* /ctrl-int/1/playspec?database-spec='dmap.persistentid:0x1'&container-spec='dmap.persistentid:0x5'&item-spec='dmap.itemid:0x9'
* With our DAAP implementation, container-spec is the playlist ID and container-item-spec/item-spec is the song ID
*/
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
/* Check for shuffle */
shuffle = evhttp_find_header(hreq->query, "dacp.shufflestate");
/* Playlist ID */
param = evhttp_find_header(hreq->query, "container-spec");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "No container-spec in playspec request\n");
goto out_fail;
}
param = strchr(param, ':');
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Malformed container-spec parameter in playspec request\n");
goto out_fail;
}
param++;
if (strncmp(param, "0x", 2) == 0)
ret = safe_hextou32(param, &plid);
else
ret = safe_atou32(param, &plid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Couldn't convert container-spec to an integer in playspec (%s)\n", param);
goto out_fail;
}
if (!shuffle)
{
/* Start song ID */
if ((param = evhttp_find_header(hreq->query, "item-spec")))
plid = 0; // This is a podcast/audiobook - just play a single item, not a playlist
else if (!(param = evhttp_find_header(hreq->query, "container-item-spec")))
{
DPRINTF(E_LOG, L_DACP, "No container-item-spec/item-spec in playspec request\n");
goto out_fail;
}
param = strchr(param, ':');
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Malformed container-item-spec/item-spec parameter in playspec request\n");
goto out_fail;
}
param++;
if (strncmp(param, "0x", 2) == 0)
ret = safe_hextou32(param, &id);
else
ret = safe_atou32(param, &id);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Couldn't convert container-item-spec/item-spec to an integer in playspec (%s)\n", param);
goto out_fail;
}
}
else
id = 0;
DPRINTF(E_DBG, L_DACP, "Playspec request for playlist %d, start song id %d%s\n", plid, id, (shuffle) ? ", shuffle" : "");
player_get_status(&status);
if (status.status != PLAY_STOPPED)
player_playback_stop();
db_queue_clear(0);
if (plid > 0)
ret = db_queue_add_by_playlistid(plid, status.shuffle, status.item_id, -1, NULL, NULL);
else if (id > 0)
ret = db_queue_add_by_fileid(id, status.shuffle, status.item_id, -1, NULL, NULL);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not build song queue from playlist %d\n", plid);
goto out_fail;
}
player_queue_plid(plid);
if (shuffle)
dacp_propset_shufflestate(shuffle, NULL);
if (id > 0)
queue_item = db_queue_fetch_byfileid(id);
if (queue_item)
{
ret = player_playback_start_byitem(queue_item);
free_queue_item(queue_item, 0);
}
else
ret = player_playback_start();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not start playback\n");
goto out_fail;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
out_fail:
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
static int
dacp_reply_stop(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
player_playback_stop();
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_pause(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
player_playback_pause();
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playpause(struct httpd_request *hreq)
{
struct player_status status;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
player_get_status(&status);
if (status.status == PLAY_PLAYING)
{
player_playback_pause();
}
else
{
ret = player_playback_start();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player returned an error for start after pause\n");
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_nextitem(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
ret = player_playback_next();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player returned an error for nextitem\n");
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
ret = player_playback_start();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player returned an error for start after nextitem\n");
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_previtem(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
ret = player_playback_prev();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player returned an error for previtem\n");
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
ret = player_playback_start();
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Player returned an error for start after previtem\n");
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_beginff(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
/* TODO */
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_beginrew(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
/* TODO */
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playresume(struct httpd_request *hreq)
{
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
/* TODO */
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playqueuecontents(struct httpd_request *hreq)
{
struct evbuffer *songlist;
struct evbuffer *playlists;
struct player_status status;
struct player_history *history;
const char *param;
size_t songlist_length;
size_t playlist_length;
int span;
int count;
int ret;
int start_index;
struct query_params qp;
struct db_queue_item queue_item;
/* /ctrl-int/1/playqueue-contents?span=50&session-id=... */
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
DPRINTF(E_DBG, L_DACP, "Fetching playqueue contents\n");
span = 50; /* Default */
param = evhttp_find_header(hreq->query, "span");
if (param)
{
ret = safe_atoi32(param, &span);
if (ret < 0)
DPRINTF(E_LOG, L_DACP, "Invalid span value in playqueue-contents request\n");
}
CHECK_NULL(L_DACP, songlist = evbuffer_new());
CHECK_ERR(L_DACP, evbuffer_expand(hreq->reply, 128));
player_get_status(&status);
count = 0; // count of songs in songlist
/*
* If the span parameter is negativ make song list for Previously Played,
* otherwise make song list for Up Next and begin with first song after playlist position.
*/
if (span < 0)
{
history = player_history_get();
if (abs(span) > history->count)
{
start_index = history->start_index;
}
else
{
start_index = (history->start_index + history->count - abs(span)) % MAX_HISTORY_COUNT;
}
while ((count < history->count) && (count < abs(span)))
{
ret = playqueuecontents_add_source(songlist, history->id[(start_index + count) % MAX_HISTORY_COUNT], (count + 1), status.plid);
if (ret < 0)
goto error;
count++;
}
}
else
{
memset(&qp, 0, sizeof(struct query_params));
if (status.shuffle)
qp.sort = S_SHUFFLE_POS;
ret = db_queue_enum_start(&qp);
if (ret < 0)
goto error;
while ((db_queue_enum_fetch(&qp, &queue_item) == 0) && (queue_item.id > 0) && (count < span))
{
if (status.item_id == 0 || status.item_id == queue_item.id)
{
count = 1;
}
else if (count > 0)
{
ret = playqueuecontents_add_queue_item(songlist, &queue_item, count, status.plid);
if (ret < 0)
{
db_queue_enum_end(&qp);
goto error;
}
count++;
}
}
db_queue_enum_end(&qp);
}
/* Playlists are hist, curr and main. */
CHECK_NULL(L_DACP, playlists = evbuffer_new());
CHECK_ERR(L_DACP, evbuffer_expand(playlists, 256));
dmap_add_container(playlists, "mlit", 61); /* 8 */
dmap_add_string(playlists, "ceQk", "hist"); /* 12 */
dmap_add_int(playlists, "ceQi", -200); /* 12 */
dmap_add_int(playlists, "ceQm", 200); /* 12 */
dmap_add_string(playlists, "ceQl", "Previously Played"); /* 25 = 8 + 17 */
if (count > 0)
{
dmap_add_container(playlists, "mlit", 36); /* 8 */
dmap_add_string(playlists, "ceQk", "curr"); /* 12 */
dmap_add_int(playlists, "ceQi", 0); /* 12 */
dmap_add_int(playlists, "ceQm", 1); /* 12 */
dmap_add_container(playlists, "mlit", 69);
dmap_add_string(playlists, "ceQk", "main"); /* 12 */
dmap_add_int(playlists, "ceQi", 1); /* 12 */
dmap_add_int(playlists, "ceQm", count); /* 12 */
dmap_add_string(playlists, "ceQl", "Up Next"); /* 15 = 8 + 7 */
dmap_add_string(playlists, "ceQh", "from Music"); /* 18 = 8 + 10 */
songlist_length = evbuffer_get_length(songlist);
}
else
songlist_length = 0;
/* Final construction of reply */
playlist_length = evbuffer_get_length(playlists);
dmap_add_container(hreq->reply, "ceQR", 79 + playlist_length + songlist_length); /* size of entire container */
dmap_add_int(hreq->reply, "mstt", 200); /* 12, dmap.status */
dmap_add_int(hreq->reply, "mtco", abs(span)); /* 12 */
dmap_add_int(hreq->reply, "mrco", count); /* 12 */
dmap_add_char(hreq->reply, "ceQu", 0); /* 9 */
dmap_add_container(hreq->reply, "mlcl", 8 + playlist_length + songlist_length); /* 8 */
dmap_add_container(hreq->reply, "ceQS", playlist_length); /* 8 */
CHECK_ERR(L_DACP, evbuffer_add_buffer(hreq->reply, playlists));
CHECK_ERR(L_DACP, evbuffer_add_buffer(hreq->reply, songlist));
evbuffer_free(playlists);
evbuffer_free(songlist);
dmap_add_char(hreq->reply, "apsm", status.shuffle); /* 9, daap.playlistshufflemode - not part of mlcl container */
dmap_add_char(hreq->reply, "aprm", status.repeat); /* 9, daap.playlistrepeatmode - not part of mlcl container */
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
error:
DPRINTF(E_LOG, L_DACP, "Database error in dacp_reply_playqueuecontents\n");
evbuffer_free(songlist);
dmap_send_error(hreq->req, "ceQR", "Database error");
return -1;
}
static int
dacp_reply_playqueueedit_clear(struct httpd_request *hreq)
{
const char *param;
struct player_status status;
param = evhttp_find_header(hreq->query, "mode");
/*
* The mode parameter contains the playlist to be cleared.
* If mode=0x68697374 (hex representation of the ascii string "hist") clear the history,
* otherwise the current playlist.
*/
if (strcmp(param,"0x68697374") == 0)
player_queue_clear_history();
else
{
player_get_status(&status);
db_queue_clear(status.item_id);
}
dmap_add_container(hreq->reply, "cacr", 24); /* 8 + len */
dmap_add_int(hreq->reply, "mstt", 200); /* 12 */
dmap_add_int(hreq->reply, "miid", 0); /* 12 */
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
}
static int
dacp_reply_playqueueedit_add(struct httpd_request *hreq)
{
//?command=add&query='dmap.itemid:156'&sort=album&mode=3&session-id=100
// -> mode=3: add to playqueue position 0 (play next)
//?command=add&query='dmap.itemid:158'&sort=album&mode=0&session-id=100
// -> mode=0: add to end of playqueue
//?command=add&query='dmap.itemid:306'&queuefilter=album:6525753023700533274&sort=album&mode=1&session-id=100
// -> mode 1: stop playblack, clear playqueue, add songs to playqueue
//?command=add&query='dmap.itemid:2'&query-modifier=containers&sort=name&mode=2&session-id=100
// -> mode 2: stop playblack, clear playqueue, add shuffled songs from playlist=itemid to playqueue
const char *editquery;
const char *queuefilter;
const char *querymodifier;
const char *sort;
const char *param;
char modifiedquery[32];
int mode;
int plid;
int ret;
int quirkyquery;
struct db_queue_item *queue_item;
struct player_status status;
mode = 1;
param = evhttp_find_header(hreq->query, "mode");
if (param)
{
ret = safe_atoi32(param, &mode);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid mode value in playqueue-edit request\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
}
if ((mode == 1) || (mode == 2))
{
player_playback_stop();
db_queue_clear(0);
}
if (mode == 2)
player_shuffle_set(1);
editquery = evhttp_find_header(hreq->query, "query");
if (!editquery)
{
DPRINTF(E_LOG, L_DACP, "Could not add song queue, DACP query missing\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
sort = evhttp_find_header(hreq->query, "sort");
// if sort param is missing and an album or artist is added to the queue, set sort to "album"
if (!sort && (strstr(editquery, "daap.songalbumid:") || strstr(editquery, "daap.songartistid:")))
{
sort = "album";
}
// only use queryfilter if mode is not equal 0 (add to up next), 3 (play next) or 5 (add to up next)
queuefilter = (mode == 0 || mode == 3 || mode == 5) ? NULL : evhttp_find_header(hreq->query, "queuefilter");
querymodifier = evhttp_find_header(hreq->query, "query-modifier");
if (!querymodifier || (strcmp(querymodifier, "containers") != 0))
{
quirkyquery = (mode == 1) && strstr(editquery, "dmap.itemid:") && ((!queuefilter) || strstr(queuefilter, "(null)"));
ret = dacp_queueitem_add(editquery, queuefilter, sort, quirkyquery, mode);
}
else
{
// Modify the query: Take the id from the editquery and use it as a queuefilter playlist id
ret = safe_atoi32(strchr(editquery, ':') + 1, &plid);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid playlist id in request: %s\n", editquery);
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
snprintf(modifiedquery, sizeof(modifiedquery), "playlist:%d", plid);
ret = dacp_queueitem_add(NULL, modifiedquery, sort, 0, mode);
}
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not build song queue\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
if (ret > 0)
queue_item = db_queue_fetch_byfileid(ret);
else
queue_item = NULL;
if (queue_item)
{
player_get_status(&status);
if (status.shuffle)
{
DPRINTF(E_DBG, L_DACP, "Start shuffle queue with item %d\n", queue_item->id);
db_queue_move_byitemid(queue_item->id, 0, status.shuffle);
}
DPRINTF(E_DBG, L_DACP, "Song queue built, starting playback at index %d\n", queue_item->pos);
ret = player_playback_start_byitem(queue_item);
free_queue_item(queue_item, 0);
}
else
{
DPRINTF(E_DBG, L_DACP, "Song queue built, starting playback\n");
ret = player_playback_start();
}
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not start playback\n");
dmap_send_error(hreq->req, "cacr", "Playback failed to start");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playqueueedit_move(struct httpd_request *hreq)
{
/*
* Handles the move command.
* Exampe request:
* playqueue-edit?command=move&edit-params='edit-param.move-pair:3,0'&session-id=100
*
* The 'edit-param.move-pair' param contains the index of the song in the playqueue to be moved (index 3 in the example)
* and the index of the song after which it should be inserted (index 0 in the exampe, the now playing song).
*/
struct player_status status;
int ret;
const char *param;
int src;
int dst;
param = evhttp_find_header(hreq->query, "edit-params");
if (param)
{
ret = safe_atoi32(strchr(param, ':') + 1, &src);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid edit-params move-from value in playqueue-edit request\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
ret = safe_atoi32(strchr(param, ',') + 1, &dst);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid edit-params move-to value in playqueue-edit request\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
player_get_status(&status);
db_queue_move_byposrelativetoitem(src, dst, status.item_id, status.shuffle);
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playqueueedit_remove(struct httpd_request *hreq)
{
/*
* Handles the remove command.
* Exampe request (removes song at position 1 in the playqueue):
* ?command=remove&items=1&session-id=100
*/
struct player_status status;
const char *param;
int item_index;
int ret;
param = evhttp_find_header(hreq->query, "items");
if (param)
{
ret = safe_atoi32(param, &item_index);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid edit-params remove item value in playqueue-edit request\n");
dmap_send_error(hreq->req, "cacr", "Invalid request");
return -1;
}
player_get_status(&status);
db_queue_delete_byposrelativetoitem(item_index, status.item_id, status.shuffle);
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_playqueueedit(struct httpd_request *hreq)
{
const char *param;
int ret;
/* Variations of /ctrl-int/1/playqueue-edit and expected behaviour
User selected play (album or artist tab):
?command=add&query='...'&sort=album&mode=1&session-id=...
-> clear queue, play query results
User selected play (playlist):
?command=add&query='dmap.itemid:...'&query-modifier=containers&mode=1&session-id=...
-> clear queue, play playlist with the id specified by itemid
User selected track (album tab):
?command=add&query='dmap.itemid:...'&queuefilter=album:...&sort=album&mode=1&session-id=...
-> clear queue, play itemid and the rest of album
User selected track (artist tab):
?command=add&query='dmap.itemid:...'&queuefilter=artist:...&sort=album&mode=1&session-id=...
-> clear queue, play itemid and the rest of artist tracks
User selected track (song tab):
?command=add&query='dmap.itemid:...'&queuefilter=playlist:...&sort=name&mode=1&session-id=...
-> clear queue, play itemid and the rest of playlist
User selected track (playlist tab):
?command=add&query='dmap.containeritemid:...'&queuefilter=playlist:...&sort=physical&mode=1&session-id=...
-> clear queue, play containeritemid and the rest of playlist
User selected shuffle (artist tab):
?command=add&query='...'&sort=album&mode=2&session-id=...
-> clear queue, play shuffled query results
User selected add item to queue:
?command=add&query='...'&sort=album&mode=0&session-id=...
-> add query results to queue
User selected play next song (album tab)
?command=add&query='daap.songalbumid:...'&sort=album&mode=3&session-id=...
-> replace queue from after current song with query results
User selected track in queue:
?command=playnow&index=...&session-id=...
-> play index
And the quirky query from Remote - no sort and no queuefilter
User selected track (Audiobooks):
?command=add&query='dmap.itemid:...'&mode=1&session-id=...
-> clear queue, play itemid and the rest of album tracks
?command=move&edit-params='edit-param.move-pair:3,0'&session-id=100
-> move song from playqueue position 3 to be played after song at position 0
?command=remove&items=1&session-id=100
-> remove song on position 1 from the playqueue
*/
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "command");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "No command in playqueue-edit request\n");
dmap_send_error(hreq->req, "cmst", "Invalid request");
return -1;
}
if (strcmp(param, "clear") == 0)
return dacp_reply_playqueueedit_clear(hreq);
else if (strcmp(param, "playnow") == 0)
return dacp_reply_cue_play(hreq);
else if (strcmp(param, "add") == 0)
return dacp_reply_playqueueedit_add(hreq);
else if (strcmp(param, "move") == 0)
return dacp_reply_playqueueedit_move(hreq);
else if (strcmp(param, "remove") == 0)
return dacp_reply_playqueueedit_remove(hreq);
else
{
DPRINTF(E_LOG, L_DACP, "Unknown playqueue-edit command %s\n", param);
dmap_send_error(hreq->req, "cmst", "Invalid request");
return -1;
}
}
static int
dacp_reply_playstatusupdate(struct httpd_request *hreq)
{
struct dacp_update_request *ur;
struct evhttp_connection *evcon;
struct bufferevent *bufev;
const char *param;
int reqd_rev;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "revision-number");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Missing revision-number in update request\n");
dmap_send_error(hreq->req, "cmst", "Invalid request");
return -1;
}
ret = safe_atoi32(param, &reqd_rev);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Parameter revision-number not an integer\n");
dmap_send_error(hreq->req, "cmst", "Invalid request");
return -1;
}
// Caller didn't use current revision number. It was probably his first
// request so we will give him status immediately, incl. which revision number
// to use when he calls again.
if (reqd_rev != current_rev)
{
ret = make_playstatusupdate(hreq->reply);
if (ret < 0)
httpd_send_error(hreq->req, 500, "Internal Server Error");
else
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return ret;
}
// Else, just let the request hang until we have changes to push back
ur = calloc(1, sizeof(struct dacp_update_request));
if (!ur)
{
DPRINTF(E_LOG, L_DACP, "Out of memory for update request\n");
dmap_send_error(hreq->req, "cmst", "Out of memory");
return -1;
}
ur->req = hreq->req;
ur->next = update_requests;
update_requests = ur;
/* If the connection fails before we have an update to push out
* to the client, we need to know.
*/
evcon = evhttp_request_get_connection(hreq->req);
if (evcon)
{
evhttp_connection_set_closecb(evcon, update_fail_cb, ur);
// This is a workaround for some versions of libevent (2.0, but possibly
// also 2.1) that don't detect if the client hangs up, and thus don't
// clean up and never call update_fail_cb(). See github issue #870 and
// https://github.com/libevent/libevent/issues/666. It should probably be
// removed again in the future. The workaround is also present in daap.c
bufev = evhttp_connection_get_bufferevent(evcon);
if (bufev)
bufferevent_enable(bufev, EV_READ);
}
return 0;
}
static int
dacp_reply_nowplayingartwork(struct httpd_request *hreq)
{
char clen[32];
struct evkeyvalq *headers;
const char *param;
char *ctype;
size_t len;
uint32_t id;
int max_w;
int max_h;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "mw");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Request for artwork without mw parameter\n");
goto error;
}
ret = safe_atoi32(param, &max_w);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not convert mw parameter to integer\n");
goto error;
}
param = evhttp_find_header(hreq->query, "mh");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Request for artwork without mh parameter\n");
goto error;
}
ret = safe_atoi32(param, &max_h);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not convert mh parameter to integer\n");
goto error;
}
ret = player_playing_now(&id);
if (ret < 0)
goto no_artwork;
ret = artwork_get_item(hreq->reply, id, max_w, max_h);
len = evbuffer_get_length(hreq->reply);
switch (ret)
{
case ART_FMT_PNG:
ctype = "image/png";
break;
case ART_FMT_JPEG:
ctype = "image/jpeg";
break;
default:
if (len > 0)
evbuffer_drain(hreq->reply, len);
goto no_artwork;
}
headers = evhttp_request_get_output_headers(hreq->req);
evhttp_remove_header(headers, "Content-Type");
evhttp_add_header(headers, "Content-Type", ctype);
snprintf(clen, sizeof(clen), "%ld", (long)len);
evhttp_add_header(headers, "Content-Length", clen);
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
no_artwork:
httpd_send_error(hreq->req, HTTP_NOTFOUND, "Not Found");
return 0;
error:
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
static int
dacp_reply_getproperty(struct httpd_request *hreq)
{
struct player_status status;
const struct dacp_prop_map *dpm;
struct db_queue_item *queue_item = NULL;
struct evbuffer *proplist;
const char *param;
char *ptr;
char *prop;
char *propstr;
size_t len;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "properties");
if (!param)
{
DPRINTF(E_WARN, L_DACP, "Invalid DACP getproperty request, no properties\n");
dmap_send_error(hreq->req, "cmgt", "Invalid request");
return -1;
}
propstr = strdup(param);
if (!propstr)
{
DPRINTF(E_LOG, L_DACP, "Could not duplicate properties parameter; out of memory\n");
dmap_send_error(hreq->req, "cmgt", "Out of memory");
return -1;
}
proplist = evbuffer_new();
if (!proplist)
{
DPRINTF(E_LOG, L_DACP, "Could not allocate evbuffer for properties list\n");
dmap_send_error(hreq->req, "cmgt", "Out of memory");
goto out_free_propstr;
}
player_get_status(&status);
if (status.status != PLAY_STOPPED)
{
queue_item = db_queue_fetch_byitemid(status.item_id);
if (!queue_item)
{
DPRINTF(E_LOG, L_DACP, "Could not fetch queue_item for item-id %d\n", status.item_id);
dmap_send_error(hreq->req, "cmgt", "Server error");
goto out_free_proplist;
}
}
prop = strtok_r(propstr, ",", &ptr);
while (prop)
{
dpm = dacp_find_prop(prop, strlen(prop));
if (dpm)
{
if (dpm->propget)
dpm->propget(proplist, &status, queue_item);
else
DPRINTF(E_WARN, L_DACP, "No getter method for DACP property %s\n", prop);
}
else
DPRINTF(E_LOG, L_DACP, "Could not find requested property '%s'\n", prop);
prop = strtok_r(NULL, ",", &ptr);
}
free(propstr);
if (queue_item)
free_queue_item(queue_item, 0);
len = evbuffer_get_length(proplist);
dmap_add_container(hreq->reply, "cmgt", 12 + len);
dmap_add_int(hreq->reply, "mstt", 200); /* 12 */
CHECK_ERR(L_DACP, evbuffer_add_buffer(hreq->reply, proplist));
evbuffer_free(proplist);
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
out_free_proplist:
evbuffer_free(proplist);
out_free_propstr:
free(propstr);
return -1;
}
static int
dacp_reply_setproperty(struct httpd_request *hreq)
{
const struct dacp_prop_map *dpm;
struct evkeyval *param;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
/* Known properties (see dacp_prop.gperf):
* dacp.shufflestate 0/1
* dacp.repeatstate 0/1/2
* dacp.playingtime seek to time in ms
* dmcp.volume 0-100, float
* dmcp.device-volume -144-0, float (raop volume)
* dmcp.device-prevent-playback 0/1
* dmcp.device-busy 0/1
*/
/* /ctrl-int/1/setproperty?dacp.shufflestate=1&session-id=100 */
TAILQ_FOREACH(param, hreq->query, next)
{
dpm = dacp_find_prop(param->key, strlen(param->key));
if (!dpm)
{
DPRINTF(E_SPAM, L_DACP, "Unknown DACP property %s\n", param->key);
continue;
}
if (dpm->propset)
dpm->propset(param->value, hreq);
else
DPRINTF(E_WARN, L_DACP, "No setter method for DACP property %s\n", dpm->desc);
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_getspeakers(struct httpd_request *hreq)
{
struct evbuffer *spklist;
size_t len;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
CHECK_NULL(L_DACP, spklist = evbuffer_new());
player_speaker_enumerate(speaker_enum_cb, spklist);
len = evbuffer_get_length(spklist);
dmap_add_container(hreq->reply, "casp", 12 + len);
dmap_add_int(hreq->reply, "mstt", 200); /* 12 */
evbuffer_add_buffer(hreq->reply, spklist);
evbuffer_free(spklist);
httpd_send_reply(hreq->req, HTTP_OK, "OK", hreq->reply, 0);
return 0;
}
static int
dacp_reply_setspeakers(struct httpd_request *hreq)
{
const char *param;
const char *ptr;
uint64_t *ids;
int nspk;
int i;
int ret;
ret = dacp_request_authorize(hreq);
if (ret < 0)
return -1;
param = evhttp_find_header(hreq->query, "speaker-id");
if (!param)
{
DPRINTF(E_LOG, L_DACP, "Missing speaker-id parameter in DACP setspeakers request\n");
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
if (strlen(param) == 0)
{
ids = NULL;
goto fastpath;
}
nspk = 1;
ptr = param;
while ((ptr = strchr(ptr + 1, ',')))
nspk++;
CHECK_NULL(L_DACP, ids = calloc((nspk + 1), sizeof(uint64_t)));
param--;
i = 1;
do
{
param++;
// Some like Remote will give us hex, others will give us decimal (e.g. Hyperfine)
if (strncmp(param, "0x", 2) == 0)
ret = safe_hextou64(param, &ids[i]);
else
ret = safe_atou64(param, &ids[i]);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Invalid speaker id in request: %s\n", param);
nspk--;
continue;
}
else
{
DPRINTF(E_DBG, L_DACP, "Speaker id converted with ret %d, param %s, dec val %" PRIu64 ".\n", ret, param, ids[i]);
}
i++;
}
while ((param = strchr(param + 1, ',')));
ids[0] = nspk;
fastpath:
ret = player_speaker_set(ids);
if (ids)
free(ids);
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Speakers de/activation failed!\n");
/* Password problem */
if (ret == -2)
httpd_send_error(hreq->req, 902, "");
else
httpd_send_error(hreq->req, 500, "Internal Server Error");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_volumeup(struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
int ret;
ret = speaker_get(&speaker_info, hreq, "volumeup");
if (ret < 0)
{
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
ret = speaker_volume_step(&speaker_info, DACP_VOLUME_STEP);
if (ret < 0)
{
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_volumedown(struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
int ret;
ret = speaker_get(&speaker_info, hreq, "volumedown");
if (ret < 0)
{
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
ret = speaker_volume_step(&speaker_info, -DACP_VOLUME_STEP);
if (ret < 0)
{
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static int
dacp_reply_mutetoggle(struct httpd_request *hreq)
{
struct player_speaker_info speaker_info;
int ret;
ret = speaker_get(&speaker_info, hreq, "mutetoggle");
if (ret < 0)
{
httpd_send_error(hreq->req, HTTP_BADREQUEST, "Bad Request");
return -1;
}
// We don't actually mute, because the player doesn't currently support unmuting
if (speaker_info.selected)
player_speaker_disable(speaker_info.id);
else
player_speaker_enable(speaker_info.id);
/* 204 No Content is the canonical reply */
httpd_send_reply(hreq->req, HTTP_NOCONTENT, "No Content", hreq->reply, HTTPD_SEND_NO_GZIP);
return 0;
}
static struct httpd_uri_map dacp_handlers[] =
{
{
.regexp = "^/ctrl-int$",
.handler = dacp_reply_ctrlint
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/cue$",
.handler = dacp_reply_cue
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/play$",
.handler = dacp_reply_play
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playspec$",
.handler = dacp_reply_playspec
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/stop$",
.handler = dacp_reply_stop
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/pause$",
.handler = dacp_reply_pause
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/discrete-pause$",
.handler = dacp_reply_playpause
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playpause$",
.handler = dacp_reply_playpause
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/nextitem$",
.handler = dacp_reply_nextitem
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/previtem$",
.handler = dacp_reply_previtem
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/beginff$",
.handler = dacp_reply_beginff
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/beginrew$",
.handler = dacp_reply_beginrew
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playresume$",
.handler = dacp_reply_playresume
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playstatusupdate$",
.handler = dacp_reply_playstatusupdate
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playqueue-contents$",
.handler = dacp_reply_playqueuecontents
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/playqueue-edit$",
.handler = dacp_reply_playqueueedit
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/nowplayingartwork$",
.handler = dacp_reply_nowplayingartwork
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/getproperty$",
.handler = dacp_reply_getproperty
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/setproperty$",
.handler = dacp_reply_setproperty
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/getspeakers$",
.handler = dacp_reply_getspeakers
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/setspeakers$",
.handler = dacp_reply_setspeakers
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/volumeup$",
.handler = dacp_reply_volumeup
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/volumedown$",
.handler = dacp_reply_volumedown
},
{
.regexp = "^/ctrl-int/[[:digit:]]+/mutetoggle$",
.handler = dacp_reply_mutetoggle
},
{
.regexp = NULL,
.handler = NULL
}
};
/* ------------------------------- DACP API --------------------------------- */
void
dacp_request(struct evhttp_request *req, struct httpd_uri_parsed *uri_parsed)
{
struct httpd_request *hreq;
struct evkeyvalq *headers;
DPRINTF(E_DBG, L_DACP, "DACP request: '%s'\n", uri_parsed->uri);
hreq = httpd_request_parse(req, uri_parsed, NULL, dacp_handlers);
if (!hreq)
{
DPRINTF(E_LOG, L_DACP, "Unrecognized path '%s' in DACP request: '%s'\n", uri_parsed->path, uri_parsed->uri);
httpd_send_error(req, HTTP_BADREQUEST, "Bad Request");
return;
}
headers = evhttp_request_get_output_headers(req);
evhttp_add_header(headers, "DAAP-Server", "forked-daapd/" VERSION);
/* Content-Type for all DACP replies; can be overriden as needed */
evhttp_add_header(headers, "Content-Type", "application/x-dmap-tagged");
CHECK_NULL(L_DACP, hreq->reply = evbuffer_new());
hreq->handler(hreq);
evbuffer_free(hreq->reply);
free(hreq);
}
int
dacp_is_request(const char *path)
{
if (strncmp(path, "/ctrl-int/", strlen("/ctrl-int/")) == 0)
return 1;
if (strcmp(path, "/ctrl-int") == 0)
return 1;
return 0;
}
int
dacp_init(void)
{
char buf[64];
int i;
int ret;
current_rev = 2;
update_requests = NULL;
dummy_mfi.id = DB_MEDIA_FILE_NON_PERSISTENT_ID;
dummy_mfi.title = CFG_NAME_UNKNOWN_TITLE;
dummy_mfi.artist = CFG_NAME_UNKNOWN_ARTIST;
dummy_mfi.album = CFG_NAME_UNKNOWN_ALBUM;
dummy_mfi.genre = CFG_NAME_UNKNOWN_GENRE;
dummy_queue_item.file_id = DB_MEDIA_FILE_NON_PERSISTENT_ID;
dummy_queue_item.title = CFG_NAME_UNKNOWN_TITLE;
dummy_queue_item.artist = CFG_NAME_UNKNOWN_ARTIST;
dummy_queue_item.album = CFG_NAME_UNKNOWN_ALBUM;
dummy_queue_item.genre = CFG_NAME_UNKNOWN_GENRE;
#ifdef HAVE_EVENTFD
update_efd = eventfd(0, EFD_CLOEXEC);
if (update_efd < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not create update eventfd: %s\n", strerror(errno));
return -1;
}
#else
# ifdef HAVE_PIPE2
ret = pipe2(update_pipe, O_CLOEXEC);
# else
ret = pipe(update_pipe);
# endif
if (ret < 0)
{
DPRINTF(E_LOG, L_DACP, "Could not create update pipe: %s\n", strerror(errno));
return -1;
}
#endif /* HAVE_EVENTFD */
for (i = 0; dacp_handlers[i].handler; i++)
{
ret = regcomp(&dacp_handlers[i].preg, dacp_handlers[i].regexp, REG_EXTENDED | REG_NOSUB);
if (ret != 0)
{
regerror(ret, &dacp_handlers[i].preg, buf, sizeof(buf));
DPRINTF(E_FATAL, L_DACP, "DACP init failed; regexp error: %s\n", buf);
goto regexp_fail;
}
}
#ifdef HAVE_EVENTFD
updateev = event_new(evbase_httpd, update_efd, EV_READ, playstatusupdate_cb, NULL);
#else
updateev = event_new(evbase_httpd, update_pipe[0], EV_READ, playstatusupdate_cb, NULL);
#endif
if (!updateev)
{
DPRINTF(E_LOG, L_DACP, "Could not create update event\n");
return -1;
}
event_add(updateev, NULL);
seek_timer = evtimer_new(evbase_httpd, seek_timer_cb, NULL);
if (!seek_timer)
{
DPRINTF(E_LOG, L_DACP, "Could not create seek_timer event\n");
return -1;
}
listener_add(dacp_playstatus_update_handler, LISTENER_PLAYER | LISTENER_VOLUME);
return 0;
regexp_fail:
#ifdef HAVE_EVENTFD
close(update_efd);
#else
close(update_pipe[0]);
close(update_pipe[1]);
#endif
return -1;
}
void
dacp_deinit(void)
{
struct dacp_update_request *ur;
struct evhttp_connection *evcon;
int i;
listener_remove(dacp_playstatus_update_handler);
event_free(seek_timer);
for (i = 0; dacp_handlers[i].handler; i++)
regfree(&dacp_handlers[i].preg);
for (ur = update_requests; update_requests; ur = update_requests)
{
update_requests = ur->next;
evcon = evhttp_request_get_connection(ur->req);
if (evcon)
{
evhttp_connection_set_closecb(evcon, NULL, NULL);
evhttp_connection_free(evcon);
}
free(ur);
}
event_free(updateev);
#ifdef HAVE_EVENTFD
close(update_efd);
#else
close(update_pipe[0]);
close(update_pipe[1]);
#endif
}
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