From eec77b3ae7d732547f65a6ae838d8acfd661dc17 Mon Sep 17 00:00:00 2001 From: Simon Kagstrom Date: Sun, 27 Mar 2011 08:40:55 +0200 Subject: [PATCH] despotify: Add support utilities Used to connect and authenticate to despotify. Provides a singleton session and a desptoify-track-to-tags function. --- src/conf.c | 3 ++ src/conf.h | 3 ++ src/despotify_utils.c | 121 ++++++++++++++++++++++++++++++++++++++++++ src/despotify_utils.h | 67 +++++++++++++++++++++++ 4 files changed, 194 insertions(+) create mode 100644 src/despotify_utils.c create mode 100644 src/despotify_utils.h diff --git a/src/conf.c b/src/conf.c index 419411648..fa05610ba 100644 --- a/src/conf.c +++ b/src/conf.c @@ -99,6 +99,9 @@ static struct config_entry config_entries[] = { { .name = CONF_PLAYLIST_PLUGIN, true, true }, { .name = CONF_AUTO_UPDATE, false, false }, { .name = CONF_AUTO_UPDATE_DEPTH, false, false }, + { .name = CONF_DESPOTIFY_USER, false, false }, + { .name = CONF_DESPOTIFY_PASSWORD, false, false}, + { .name = CONF_DESPOTIFY_HIGH_BITRATE, false, false }, { .name = "filter", true, true }, }; diff --git a/src/conf.h b/src/conf.h index 6ac21dea1..c26ff6958 100644 --- a/src/conf.h +++ b/src/conf.h @@ -72,6 +72,9 @@ #define CONF_PLAYLIST_PLUGIN "playlist_plugin" #define CONF_AUTO_UPDATE "auto_update" #define CONF_AUTO_UPDATE_DEPTH "auto_update_depth" +#define CONF_DESPOTIFY_USER "despotify_user" +#define CONF_DESPOTIFY_PASSWORD "despotify_password" +#define CONF_DESPOTIFY_HIGH_BITRATE "despotify_high_bitrate" #define DEFAULT_PLAYLIST_MAX_LENGTH (1024*16) #define DEFAULT_PLAYLIST_SAVE_ABSOLUTE_PATHS false diff --git a/src/despotify_utils.c b/src/despotify_utils.c new file mode 100644 index 000000000..7555d105d --- /dev/null +++ b/src/despotify_utils.c @@ -0,0 +1,121 @@ +#include +#include + +#include "tag.h" +#include "conf.h" +#include "despotify_utils.h" + +static struct despotify_session *g_session; +static void (*registered_callbacks[8])(struct despotify_session *, + int, void *, void *); +static void *registered_callback_data[8]; + +static void callback(struct despotify_session* ds, int sig, + void* data, G_GNUC_UNUSED void* callback_data) +{ + size_t i; + + for (i = 0; i < sizeof(registered_callbacks) / sizeof(registered_callbacks[0]); i++) { + void (*cb)(struct despotify_session *, int, void *, void *) = registered_callbacks[i]; + void *cb_data = registered_callback_data[i]; + + if (cb) + cb(ds, sig, data, cb_data); + } +} + +bool mpd_despotify_register_callback(void (*cb)(struct despotify_session *, int, void *, void *), + void *cb_data) +{ + size_t i; + + for (i = 0; i < sizeof(registered_callbacks) / sizeof(registered_callbacks[0]); i++) { + + if (!registered_callbacks[i]) { + registered_callbacks[i] = cb; + registered_callback_data[i] = cb_data; + + return true; + } + } + + return false; +} + +void mpd_despotify_unregister_callback(void (*cb)(struct despotify_session *, int, void *, void *)) +{ + size_t i; + + for (i = 0; i < sizeof(registered_callbacks) / sizeof(registered_callbacks[0]); i++) { + + if (registered_callbacks[i] == cb) { + registered_callbacks[i] = NULL; + } + } +} + + +struct tag *mpd_despotify_tag_from_track(struct ds_track *track) +{ + char tracknum[20]; + char comment[80]; + char date[20]; + struct tag *tag; + + tag = tag_new(); + + if (!track->has_meta_data) + return tag; + + g_snprintf(tracknum, sizeof(tracknum), "%d", track->tracknumber); + g_snprintf(date, sizeof(date), "%d", track->year); + g_snprintf(comment, sizeof(comment), "Bitrate %d Kbps, %sgeo restricted", + track->file_bitrate / 1000, track->geo_restricted ? "" : "not "); + tag_add_item(tag, TAG_TITLE, track->title); + tag_add_item(tag, TAG_ARTIST, track->artist->name); + tag_add_item(tag, TAG_TRACK, tracknum); + tag_add_item(tag, TAG_ALBUM, track->album); + tag_add_item(tag, TAG_DATE, date); + tag_add_item(tag, TAG_COMMENT, comment); + tag->time = track->length / 1000; + + return tag; +} + +struct despotify_session *mpd_despotify_get_session(void) +{ + const char *user; + const char *passwd; + bool high_bitrate; + + if (g_session) + return g_session; + + user = config_get_string(CONF_DESPOTIFY_USER, NULL); + passwd = config_get_string(CONF_DESPOTIFY_PASSWORD, NULL); + high_bitrate = config_get_bool(CONF_DESPOTIFY_HIGH_BITRATE, true); + + if (user == NULL || passwd == NULL) { + g_debug("disabling despotify because account is not configured"); + return NULL; + } + if (!despotify_init()) { + g_debug("Can't initialize despotify\n"); + return false; + } + + g_session = despotify_init_client(callback, NULL, + high_bitrate, true); + if (!g_session) { + g_debug("Can't initialize despotify client\n"); + return false; + } + + if (!despotify_authenticate(g_session, user, passwd)) { + g_debug("Can't authenticate despotify session\n"); + despotify_exit(g_session); + return false; + } + + return g_session; +} diff --git a/src/despotify_utils.h b/src/despotify_utils.h new file mode 100644 index 000000000..7e35edc3c --- /dev/null +++ b/src/despotify_utils.h @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2003-2011 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPD_DESPOTIFY_H +#define MPD_DESPOTIFY_H + +struct despotify_session; +struct ds_track; + +/** + * Return the current despotify session. + * + * If the session isn't initialized, this function will initialize + * it and connect to Spotify. + * + * @return a pointer to the despotify session, or NULL if it can't + * be initialized (e.g., if the configuration isn't supplied) + */ +struct despotify_session *mpd_despotify_get_session(void); + +/** + * Create a MPD tags structure from a spotify track + * + * @param track the track to convert + * + * @return a pointer to the filled in tags structure + */ +struct tag *mpd_despotify_tag_from_track(struct ds_track *track); + +/** + * Register a despotify callback. + * + * Despotify calls this e.g., when a track ends. + * + * @param cb the callback + * @param cb_data the data to pass to the callback + * + * @return true if the callback could be registered + */ +bool mpd_despotify_register_callback(void (*cb)(struct despotify_session *, int, void *, void *), + void *cb_data); + +/** + * Unregister a despotify callback. + * + * @param cb the callback to unregister. + */ +void mpd_despotify_unregister_callback(void (*cb)(struct despotify_session *, int, void *, void *)); + +#endif +