aboutsummaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/playlist/xspf_playlist_plugin.c331
-rw-r--r--src/playlist/xspf_playlist_plugin.h25
-rw-r--r--src/playlist_list.c2
3 files changed, 358 insertions, 0 deletions
diff --git a/src/playlist/xspf_playlist_plugin.c b/src/playlist/xspf_playlist_plugin.c
new file mode 100644
index 000000000..9c3a8eb57
--- /dev/null
+++ b/src/playlist/xspf_playlist_plugin.c
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2003-2009 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 "playlist/xspf_playlist_plugin.h"
+#include "playlist_plugin.h"
+#include "input_stream.h"
+#include "uri.h"
+#include "song.h"
+#include "tag.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <string.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "xspf"
+
+/**
+ * This is the state object for the GLib XML parser.
+ */
+struct xspf_parser {
+ /**
+ * The list of songs (in reverse order because that's faster
+ * while adding).
+ */
+ GSList *songs;
+
+ /**
+ * The current position in the XML file.
+ */
+ enum {
+ ROOT, PLAYLIST, TRACKLIST, TRACK,
+ LOCATION,
+ } state;
+
+ /**
+ * The current tag within the "track" element. This is only
+ * valid if state==TRACK. TAG_NUM_OF_ITEM_TYPES means there
+ * is no (known) tag.
+ */
+ enum tag_type tag;
+
+ /**
+ * The current song. It is allocated after the "location"
+ * element.
+ */
+ struct song *song;
+};
+
+static void
+xspf_start_element(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *element_name,
+ G_GNUC_UNUSED const gchar **attribute_names,
+ G_GNUC_UNUSED const gchar **attribute_values,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct xspf_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ if (strcmp(element_name, "playlist") == 0)
+ parser->state = PLAYLIST;
+
+ break;
+
+ case PLAYLIST:
+ if (strcmp(element_name, "trackList") == 0)
+ parser->state = TRACKLIST;
+
+ break;
+
+ case TRACKLIST:
+ if (strcmp(element_name, "track") == 0) {
+ parser->state = TRACK;
+ parser->song = NULL;
+ parser->tag = TAG_NUM_OF_ITEM_TYPES;
+ }
+
+ break;
+
+ case TRACK:
+ if (strcmp(element_name, "location") == 0)
+ parser->state = LOCATION;
+ else if (strcmp(element_name, "title") == 0)
+ parser->tag = TAG_TITLE;
+ else if (strcmp(element_name, "creator") == 0)
+ /* TAG_COMPOSER would be more correct
+ according to the XSPF spec */
+ parser->tag = TAG_ARTIST;
+ else if (strcmp(element_name, "annotation") == 0)
+ parser->tag = TAG_COMMENT;
+ else if (strcmp(element_name, "album") == 0)
+ parser->tag = TAG_ALBUM;
+ else if (strcmp(element_name, "trackNum") == 0)
+ parser->tag = TAG_TRACK;
+
+ break;
+
+ case LOCATION:
+ break;
+ }
+}
+
+static void
+xspf_end_element(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *element_name,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct xspf_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ break;
+
+ case PLAYLIST:
+ if (strcmp(element_name, "playlist") == 0)
+ parser->state = ROOT;
+
+ break;
+
+ case TRACKLIST:
+ if (strcmp(element_name, "tracklist") == 0)
+ parser->state = PLAYLIST;
+
+ break;
+
+ case TRACK:
+ if (strcmp(element_name, "track") == 0) {
+ if (parser->song != NULL)
+ parser->songs = g_slist_prepend(parser->songs,
+ parser->song);
+
+ parser->state = TRACKLIST;
+ } else
+ parser->tag = TAG_NUM_OF_ITEM_TYPES;
+
+ break;
+
+ case LOCATION:
+ parser->state = TRACK;
+ break;
+ }
+}
+
+static void
+xspf_text(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *text, gsize text_len,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct xspf_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ case PLAYLIST:
+ case TRACKLIST:
+ case TRACK:
+ if (parser->song != NULL &&
+ parser->tag != TAG_NUM_OF_ITEM_TYPES) {
+ if (parser->song->tag == NULL)
+ parser->song->tag = tag_new();
+ tag_add_item_n(parser->song->tag, parser->tag,
+ text, text_len);
+ }
+
+ break;
+
+ case LOCATION:
+ if (parser->song == NULL) {
+ char *uri = g_strndup(text, text_len);
+ parser->song = song_remote_new(uri);
+ g_free(uri);
+ }
+
+ break;
+ }
+}
+
+static const GMarkupParser xspf_parser = {
+ .start_element = xspf_start_element,
+ .end_element = xspf_end_element,
+ .text = xspf_text,
+};
+
+static void
+song_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+ struct song *song = data;
+
+ song_free(song);
+}
+
+static void
+xspf_parser_destroy(gpointer data)
+{
+ struct xspf_parser *parser = data;
+
+ if (parser->state >= TRACK && parser->song != NULL)
+ song_free(parser->song);
+
+ g_slist_foreach(parser->songs, song_free_callback, NULL);
+ g_slist_free(parser->songs);
+}
+
+/*
+ * The playlist object
+ *
+ */
+
+struct xspf_playlist {
+ struct playlist_provider base;
+
+ GSList *songs;
+};
+
+static struct playlist_provider *
+xspf_open_stream(struct input_stream *is)
+{
+ struct xspf_parser parser = {
+ .songs = NULL,
+ .state = ROOT,
+ };
+ struct xspf_playlist *playlist;
+ GMarkupParseContext *context;
+ char buffer[1024];
+ size_t nbytes;
+ bool success;
+ GError *error = NULL;
+
+ /* parse the XSPF XML file */
+
+ context = g_markup_parse_context_new(&xspf_parser,
+ G_MARKUP_TREAT_CDATA_AS_TEXT,
+ &parser, xspf_parser_destroy);
+
+ while (true) {
+ nbytes = input_stream_read(is, buffer, sizeof(buffer));
+ if (nbytes == 0)
+ break;
+
+ success = g_markup_parse_context_parse(context, buffer, nbytes,
+ &error);
+ if (!success) {
+ g_warning("XML parser failed: %s", error->message);
+ g_error_free(error);
+ g_markup_parse_context_free(context);
+ return NULL;
+ }
+ }
+
+ success = g_markup_parse_context_end_parse(context, &error);
+ if (!success) {
+ g_warning("XML parser failed: %s", error->message);
+ g_error_free(error);
+ g_markup_parse_context_free(context);
+ return NULL;
+ }
+
+ /* create a #xspf_playlist object from the parsed song list */
+
+ playlist = g_new(struct xspf_playlist, 1);
+ playlist_provider_init(&playlist->base, &xspf_playlist_plugin);
+ playlist->songs = g_slist_reverse(parser.songs);
+ parser.songs = NULL;
+
+ g_markup_parse_context_free(context);
+
+ return &playlist->base;
+}
+
+static void
+xspf_close(struct playlist_provider *_playlist)
+{
+ struct xspf_playlist *playlist = (struct xspf_playlist *)_playlist;
+
+ g_slist_foreach(playlist->songs, song_free_callback, NULL);
+ g_slist_free(playlist->songs);
+ g_free(playlist);
+}
+
+static struct song *
+xspf_read(struct playlist_provider *_playlist)
+{
+ struct xspf_playlist *playlist = (struct xspf_playlist *)_playlist;
+ struct song *song;
+
+ if (playlist->songs == NULL)
+ return NULL;
+
+ song = playlist->songs->data;
+ playlist->songs = g_slist_remove(playlist->songs, song);
+
+ return song;
+}
+
+static const char *const xspf_suffixes[] = {
+ "xspf",
+ NULL
+};
+
+static const char *const xspf_mime_types[] = {
+ "application/xspf+xml",
+ NULL
+};
+
+const struct playlist_plugin xspf_playlist_plugin = {
+ .name = "xspf",
+
+ .open_stream = xspf_open_stream,
+ .close = xspf_close,
+ .read = xspf_read,
+
+ .suffixes = xspf_suffixes,
+ .mime_types = xspf_mime_types,
+};
diff --git a/src/playlist/xspf_playlist_plugin.h b/src/playlist/xspf_playlist_plugin.h
new file mode 100644
index 000000000..c2c36fbed
--- /dev/null
+++ b/src/playlist/xspf_playlist_plugin.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2003-2009 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_PLAYLIST_XSPF_PLAYLIST_PLUGIN_H
+#define MPD_PLAYLIST_XSPF_PLAYLIST_PLUGIN_H
+
+extern const struct playlist_plugin xspf_playlist_plugin;
+
+#endif
diff --git a/src/playlist_list.c b/src/playlist_list.c
index 6a0e85c64..245fde1ee 100644
--- a/src/playlist_list.c
+++ b/src/playlist_list.c
@@ -20,6 +20,7 @@
#include "playlist_list.h"
#include "playlist_plugin.h"
#include "playlist/m3u_playlist_plugin.h"
+#include "playlist/xspf_playlist_plugin.h"
#include "input_stream.h"
#include "uri.h"
#include "utils.h"
@@ -32,6 +33,7 @@
static const struct playlist_plugin *const playlist_plugins[] = {
&m3u_playlist_plugin,
+ &xspf_playlist_plugin,
NULL
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 05:40:35 +0000