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Diffstat (limited to '')
-rw-r--r-- | src/playlist/SoundCloudPlaylistPlugin.cxx | 421 |
1 files changed, 0 insertions, 421 deletions
diff --git a/src/playlist/SoundCloudPlaylistPlugin.cxx b/src/playlist/SoundCloudPlaylistPlugin.cxx deleted file mode 100644 index f6797b14d..000000000 --- a/src/playlist/SoundCloudPlaylistPlugin.cxx +++ /dev/null @@ -1,421 +0,0 @@ -/* - * Copyright (C) 2003-2013 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 "SoundCloudPlaylistPlugin.hxx" -#include "PlaylistPlugin.hxx" -#include "MemorySongEnumerator.hxx" -#include "ConfigData.hxx" -#include "InputStream.hxx" -#include "Song.hxx" -#include "tag/Tag.hxx" -#include "util/Error.hxx" -#include "util/Domain.hxx" -#include "Log.hxx" - -#include <glib.h> -#include <yajl/yajl_parse.h> - -#include <string> - -#include <string.h> - -static struct { - std::string apikey; -} soundcloud_config; - -static constexpr Domain soundcloud_domain("soundcloud"); - -static bool -soundcloud_init(const config_param ¶m) -{ - soundcloud_config.apikey = param.GetBlockValue("apikey", ""); - if (soundcloud_config.apikey.empty()) { - LogDebug(soundcloud_domain, - "disabling the soundcloud playlist plugin " - "because API key is not set"); - return false; - } - - return true; -} - -/** - * 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, nullptr); - } else { - /* assume it's just a path on soundcloud.com */ - u = g_strconcat("http://soundcloud.com/", uri, nullptr); - } - - ru = g_strconcat("http://api.soundcloud.com/resolve.json?url=", - u, "&client_id=", - soundcloud_config.apikey.c_str(), nullptr); - 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", - nullptr, -}; - -struct parse_data { - int key; - char* stream_url; - long duration; - char* title; - int got_url; /* nesting level of last stream_url */ - - std::forward_list<SongPointer> 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 != nullptr) - g_free(data->title); - data->title = g_strndup(s, stringlen); - break; - case Stream_URL: - if (data->stream_url != nullptr) - 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 (memcmp((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; - - Song *s; - char *u; - - u = g_strconcat(data->stream_url, "?client_id=", - soundcloud_config.apikey.c_str(), nullptr); - s = Song::NewRemote(u); - g_free(u); - - Tag *t = new Tag(); - t->time = data->duration / 1000; - if (data->title != nullptr) - t->AddItem(TAG_NAME, data->title); - s->tag = t; - - data->songs.emplace_front(s); - - return 1; -} - -static yajl_callbacks parse_callbacks = { - nullptr, - nullptr, - handle_integer, - nullptr, - nullptr, - handle_string, - handle_start_map, - handle_mapkey, - handle_end_map, - nullptr, - nullptr, -}; - -/** - * 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, - Mutex &mutex, Cond &cond) -{ - char buffer[4096]; - unsigned char *ubuffer = (unsigned char *)buffer; - - Error error; - InputStream *input_stream = InputStream::Open(url, mutex, cond, - error); - if (input_stream == nullptr) { - if (error.IsDefined()) - LogError(error); - return -1; - } - - mutex.lock(); - input_stream->WaitReady(); - - yajl_status stat; - int done = 0; - - while (!done) { - const size_t nbytes = - input_stream->Read(buffer, sizeof(buffer), error); - if (nbytes == 0) { - if (error.IsDefined()) - LogError(error); - - if (input_stream->IsEOF()) { - done = true; - } else { - mutex.unlock(); - input_stream->Close(); - 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); - LogError(soundcloud_domain, (const char *)str); - yajl_free_error(hand, str); - break; - } - } - - mutex.unlock(); - input_stream->Close(); - - return 0; -} - -/** - * Parse a soundcloud:// URL and create a playlist. - * @param uri A soundcloud URL. Accepted forms: - * soundcloud://track/<track-id> - * soundcloud://playlist/<playlist-id> - * soundcloud://url/<url or path of soundcloud page> - */ - -static SongEnumerator * -soundcloud_open_uri(const char *uri, Mutex &mutex, Cond &cond) -{ - 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) { - FormatWarning(soundcloud_domain, - "incompatible scheme for soundcloud plugin: %s", - scheme); - g_free(s); - return nullptr; - } - - char *u = nullptr; - if (strcmp(arg, "track") == 0) { - u = g_strconcat("http://api.soundcloud.com/tracks/", - rest, ".json?client_id=", - soundcloud_config.apikey.c_str(), nullptr); - } else if (strcmp(arg, "playlist") == 0) { - u = g_strconcat("http://api.soundcloud.com/playlists/", - rest, ".json?client_id=", - soundcloud_config.apikey.c_str(), nullptr); - } 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 == nullptr) { - LogWarning(soundcloud_domain, "unknown soundcloud URI"); - return nullptr; - } - - yajl_handle hand; - struct parse_data data; - - data.got_url = 0; - data.title = nullptr; - data.stream_url = nullptr; -#ifdef HAVE_YAJL1 - hand = yajl_alloc(&parse_callbacks, nullptr, nullptr, (void *) &data); -#else - hand = yajl_alloc(&parse_callbacks, nullptr, (void *) &data); -#endif - - int ret = soundcloud_parse_json(u, hand, mutex, cond); - - g_free(u); - yajl_free(hand); - if (data.title != nullptr) - g_free(data.title); - if (data.stream_url != nullptr) - g_free(data.stream_url); - - if (ret == -1) - return nullptr; - - data.songs.reverse(); - return new MemorySongEnumerator(std::move(data.songs)); -} - -static const char *const soundcloud_schemes[] = { - "soundcloud", - nullptr -}; - -const struct playlist_plugin soundcloud_playlist_plugin = { - "soundcloud", - - soundcloud_init, - nullptr, - soundcloud_open_uri, - nullptr, - - soundcloud_schemes, - nullptr, - nullptr, -}; - - |