From 86b0adc82ce64bb08518088c35ce754dc96d7062 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Sat, 26 Jan 2013 01:04:02 +0100 Subject: playlist/*: convert to C++ --- src/playlist/soundcloud_playlist_plugin.c | 448 ------------------------------ 1 file changed, 448 deletions(-) delete mode 100644 src/playlist/soundcloud_playlist_plugin.c (limited to 'src/playlist/soundcloud_playlist_plugin.c') diff --git a/src/playlist/soundcloud_playlist_plugin.c b/src/playlist/soundcloud_playlist_plugin.c deleted file mode 100644 index 7c79f880a..000000000 --- a/src/playlist/soundcloud_playlist_plugin.c +++ /dev/null @@ -1,448 +0,0 @@ -/* - * 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. - */ - -#include "config.h" -#include "playlist/soundcloud_playlist_plugin.h" -#include "conf.h" -#include "input_stream.h" -#include "playlist_plugin.h" -#include "song.h" -#include "tag.h" - -#include -#include - -#include - -struct soundcloud_playlist { - struct playlist_provider base; - - GSList *songs; -}; - -static struct { - char *apikey; -} soundcloud_config; - -static bool -soundcloud_init(const struct config_param *param) -{ - soundcloud_config.apikey = - config_dup_block_string(param, "apikey", NULL); - if (soundcloud_config.apikey == NULL) { - g_debug("disabling the soundcloud playlist plugin " - "because API key is not set"); - return false; - } - - return true; -} - -static void -soundcloud_finish(void) -{ - g_free(soundcloud_config.apikey); -} - -/** - * Construct a full soundcloud resolver URL from the given fragment. - * @param uri uri of a soundcloud page (or just the path) - * @return Constructed URL. Must be freed with g_free. - */ -static char * -soundcloud_resolve(const char* uri) { - char *u, *ru; - - if (g_str_has_prefix(uri, "http://")) { - u = g_strdup(uri); - } else if (g_str_has_prefix(uri, "soundcloud.com")) { - u = g_strconcat("http://", uri, NULL); - } else { - /* assume it's just a path on soundcloud.com */ - u = g_strconcat("http://soundcloud.com/", uri, NULL); - } - - ru = g_strconcat("http://api.soundcloud.com/resolve.json?url=", - u, "&client_id=", soundcloud_config.apikey, NULL); - g_free(u); - - return ru; -} - -/* YAJL parser for track data from both /tracks/ and /playlists/ JSON */ - -enum key { - Duration, - Title, - Stream_URL, - Other, -}; - -const char* key_str[] = { - "duration", - "title", - "stream_url", - NULL, -}; - -struct parse_data { - int key; - char* stream_url; - long duration; - char* title; - int got_url; /* nesting level of last stream_url */ - GSList* songs; -}; - -static int handle_integer(void *ctx, - long -#ifndef HAVE_YAJL1 - long -#endif - intval) -{ - struct parse_data *data = (struct parse_data *) ctx; - - switch (data->key) { - case Duration: - data->duration = intval; - break; - default: - break; - } - - return 1; -} - -static int handle_string(void *ctx, const unsigned char* stringval, -#ifdef HAVE_YAJL1 - unsigned int -#else - size_t -#endif - stringlen) -{ - struct parse_data *data = (struct parse_data *) ctx; - const char *s = (const char *) stringval; - - switch (data->key) { - case Title: - if (data->title != NULL) - g_free(data->title); - data->title = g_strndup(s, stringlen); - break; - case Stream_URL: - if (data->stream_url != NULL) - g_free(data->stream_url); - data->stream_url = g_strndup(s, stringlen); - data->got_url = 1; - break; - default: - break; - } - - return 1; -} - -static int handle_mapkey(void *ctx, const unsigned char* stringval, -#ifdef HAVE_YAJL1 - unsigned int -#else - size_t -#endif - stringlen) -{ - struct parse_data *data = (struct parse_data *) ctx; - - int i; - data->key = Other; - - for (i = 0; i < Other; ++i) { - if (strncmp((const char *)stringval, key_str[i], stringlen) == 0) { - data->key = i; - break; - } - } - - return 1; -} - -static int handle_start_map(void *ctx) -{ - struct parse_data *data = (struct parse_data *) ctx; - - if (data->got_url > 0) - data->got_url++; - - return 1; -} - -static int handle_end_map(void *ctx) -{ - struct parse_data *data = (struct parse_data *) ctx; - - if (data->got_url > 1) { - data->got_url--; - return 1; - } - - if (data->got_url == 0) - return 1; - - /* got_url == 1, track finished, make it into a song */ - data->got_url = 0; - - struct song *s; - struct tag *t; - char *u; - - u = g_strconcat(data->stream_url, "?client_id=", soundcloud_config.apikey, NULL); - s = song_remote_new(u); - g_free(u); - t = tag_new(); - t->time = data->duration / 1000; - if (data->title != NULL) - tag_add_item(t, TAG_NAME, data->title); - s->tag = t; - - data->songs = g_slist_prepend(data->songs, s); - - return 1; -} - -static yajl_callbacks parse_callbacks = { - NULL, - NULL, - handle_integer, - NULL, - NULL, - handle_string, - handle_start_map, - handle_mapkey, - handle_end_map, - NULL, - NULL, -}; - -/** - * Read JSON data and parse it using the given YAJL parser. - * @param url URL of the JSON data. - * @param hand YAJL parser handle. - * @return -1 on error, 0 on success. - */ -static int -soundcloud_parse_json(const char *url, yajl_handle hand, GMutex* mutex, GCond* cond) -{ - struct input_stream *input_stream; - GError *error = NULL; - char buffer[4096]; - unsigned char *ubuffer = (unsigned char *)buffer; - size_t nbytes; - - input_stream = input_stream_open(url, mutex, cond, &error); - if (input_stream == NULL) { - if (error != NULL) { - g_warning("%s", error->message); - g_error_free(error); - } - return -1; - } - - g_mutex_lock(mutex); - input_stream_wait_ready(input_stream); - - yajl_status stat; - int done = 0; - - while (!done) { - nbytes = input_stream_read(input_stream, buffer, sizeof(buffer), &error); - if (nbytes == 0) { - if (error != NULL) { - g_warning("%s", error->message); - g_error_free(error); - } - if (input_stream_eof(input_stream)) { - done = true; - } else { - g_mutex_unlock(mutex); - input_stream_close(input_stream); - return -1; - } - } - - if (done) { -#ifdef HAVE_YAJL1 - stat = yajl_parse_complete(hand); -#else - stat = yajl_complete_parse(hand); -#endif - } else - stat = yajl_parse(hand, ubuffer, nbytes); - - if (stat != yajl_status_ok -#ifdef HAVE_YAJL1 - && stat != yajl_status_insufficient_data -#endif - ) - { - unsigned char *str = yajl_get_error(hand, 1, ubuffer, nbytes); - g_warning("%s", str); - yajl_free_error(hand, str); - break; - } - } - - g_mutex_unlock(mutex); - input_stream_close(input_stream); - - return 0; -} - -/** - * Parse a soundcloud:// URL and create a playlist. - * @param uri A soundcloud URL. Accepted forms: - * soundcloud://track/ - * soundcloud://playlist/ - * soundcloud://url/ - */ - -static struct playlist_provider * -soundcloud_open_uri(const char *uri, GMutex *mutex, GCond *cond) -{ - struct soundcloud_playlist *playlist = NULL; - - char *s, *p; - char *scheme, *arg, *rest; - s = g_strdup(uri); - scheme = s; - for (p = s; *p; p++) { - if (*p == ':' && *(p+1) == '/' && *(p+2) == '/') { - *p = 0; - p += 3; - break; - } - } - arg = p; - for (; *p; p++) { - if (*p == '/') { - *p = 0; - p++; - break; - } - } - rest = p; - - if (strcmp(scheme, "soundcloud") != 0) { - g_warning("incompatible scheme for soundcloud plugin: %s", scheme); - g_free(s); - return NULL; - } - - char *u = NULL; - if (strcmp(arg, "track") == 0) { - u = g_strconcat("http://api.soundcloud.com/tracks/", - rest, ".json?client_id=", soundcloud_config.apikey, NULL); - } else if (strcmp(arg, "playlist") == 0) { - u = g_strconcat("http://api.soundcloud.com/playlists/", - rest, ".json?client_id=", soundcloud_config.apikey, NULL); - } else if (strcmp(arg, "url") == 0) { - /* Translate to soundcloud resolver call. libcurl will automatically - follow the redirect to the right resource. */ - u = soundcloud_resolve(rest); - } - g_free(s); - - if (u == NULL) { - g_warning("unknown soundcloud URI"); - return NULL; - } - - yajl_handle hand; - struct parse_data data; - - data.got_url = 0; - data.songs = NULL; - data.title = NULL; - data.stream_url = NULL; -#ifdef HAVE_YAJL1 - hand = yajl_alloc(&parse_callbacks, NULL, NULL, (void *) &data); -#else - hand = yajl_alloc(&parse_callbacks, NULL, (void *) &data); -#endif - - int ret = soundcloud_parse_json(u, hand, mutex, cond); - - g_free(u); - yajl_free(hand); - if (data.title != NULL) - g_free(data.title); - if (data.stream_url != NULL) - g_free(data.stream_url); - - if (ret == -1) - return NULL; - - playlist = g_new(struct soundcloud_playlist, 1); - playlist_provider_init(&playlist->base, &soundcloud_playlist_plugin); - playlist->songs = g_slist_reverse(data.songs); - - return &playlist->base; -} - -static void -soundcloud_close(struct playlist_provider *_playlist) -{ - struct soundcloud_playlist *playlist = (struct soundcloud_playlist *)_playlist; - - g_free(playlist); -} - - -static struct song * -soundcloud_read(struct playlist_provider *_playlist) -{ - struct soundcloud_playlist *playlist = (struct soundcloud_playlist *)_playlist; - - if (playlist->songs == NULL) - return NULL; - - struct song* s; - s = (struct song *)playlist->songs->data; - playlist->songs = g_slist_remove(playlist->songs, s); - return s; -} - -static const char *const soundcloud_schemes[] = { - "soundcloud", - NULL -}; - -const struct playlist_plugin soundcloud_playlist_plugin = { - .name = "soundcloud", - - .init = soundcloud_init, - .finish = soundcloud_finish, - .open_uri = soundcloud_open_uri, - .close = soundcloud_close, - .read = soundcloud_read, - - .schemes = soundcloud_schemes, -}; - - -- cgit v1.2.3