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-rw-r--r--src/playlist/asx_playlist_plugin.c313
-rw-r--r--src/playlist/asx_playlist_plugin.h25
-rw-r--r--src/playlist_list.c2
3 files changed, 340 insertions, 0 deletions
diff --git a/src/playlist/asx_playlist_plugin.c b/src/playlist/asx_playlist_plugin.c
new file mode 100644
index 000000000..f79e3280d
--- /dev/null
+++ b/src/playlist/asx_playlist_plugin.c
@@ -0,0 +1,313 @@
+/*
+ * 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/asx_playlist_plugin.h"
+#include "playlist_plugin.h"
+#include "input_stream.h"
+#include "song.h"
+#include "tag.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <string.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "asx"
+
+/**
+ * This is the state object for the GLib XML parser.
+ */
+struct asx_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, ENTRY,
+ } state;
+
+ /**
+ * The current tag within the "entry" element. This is only
+ * valid if state==ENTRY. 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 const gchar *
+get_attribute(const gchar **attribute_names, const gchar **attribute_values,
+ const gchar *name)
+{
+ for (unsigned i = 0; attribute_names[i] != NULL; ++i)
+ if (g_ascii_strcasecmp(attribute_names[i], name) == 0)
+ return attribute_values[i];
+
+ return NULL;
+}
+
+static void
+asx_start_element(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *element_name,
+ const gchar **attribute_names,
+ const gchar **attribute_values,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct asx_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ if (g_ascii_strcasecmp(element_name, "entry") == 0) {
+ parser->state = ENTRY;
+ parser->song = song_remote_new("asx:");
+ parser->tag = TAG_NUM_OF_ITEM_TYPES;
+ }
+
+ break;
+
+ case ENTRY:
+ if (g_ascii_strcasecmp(element_name, "ref") == 0) {
+ const gchar *href = get_attribute(attribute_names,
+ attribute_values,
+ "href");
+ if (href != NULL) {
+ /* create new song object, and copy
+ the existing tag over; we cannot
+ replace the existing song's URI,
+ because that attribute is
+ immutable */
+ struct song *song = song_remote_new(href);
+
+ if (parser->song != NULL) {
+ song->tag = parser->song->tag;
+ parser->song->tag = NULL;
+ song_free(parser->song);
+ }
+
+ parser->song = song;
+ }
+ } else if (g_ascii_strcasecmp(element_name, "author") == 0)
+ /* is that correct? or should it be COMPOSER
+ or PERFORMER? */
+ parser->tag = TAG_ARTIST;
+ else if (g_ascii_strcasecmp(element_name, "title") == 0)
+ parser->tag = TAG_TITLE;
+
+ break;
+ }
+}
+
+static void
+asx_end_element(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *element_name,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct asx_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ break;
+
+ case ENTRY:
+ if (g_ascii_strcasecmp(element_name, "entry") == 0) {
+ if (strcmp(parser->song->uri, "asx:") != 0)
+ parser->songs = g_slist_prepend(parser->songs,
+ parser->song);
+ else
+ song_free(parser->song);
+
+ parser->state = ROOT;
+ } else
+ parser->tag = TAG_NUM_OF_ITEM_TYPES;
+
+ break;
+ }
+}
+
+static void
+asx_text(G_GNUC_UNUSED GMarkupParseContext *context,
+ const gchar *text, gsize text_len,
+ gpointer user_data, G_GNUC_UNUSED GError **error)
+{
+ struct asx_parser *parser = user_data;
+
+ switch (parser->state) {
+ case ROOT:
+ break;
+
+ case ENTRY:
+ if (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;
+ }
+}
+
+static const GMarkupParser asx_parser = {
+ .start_element = asx_start_element,
+ .end_element = asx_end_element,
+ .text = asx_text,
+};
+
+static void
+song_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
+{
+ struct song *song = data;
+
+ song_free(song);
+}
+
+static void
+asx_parser_destroy(gpointer data)
+{
+ struct asx_parser *parser = data;
+
+ if (parser->state >= ENTRY)
+ song_free(parser->song);
+
+ g_slist_foreach(parser->songs, song_free_callback, NULL);
+ g_slist_free(parser->songs);
+}
+
+/*
+ * The playlist object
+ *
+ */
+
+struct asx_playlist {
+ struct playlist_provider base;
+
+ GSList *songs;
+};
+
+static struct playlist_provider *
+asx_open_stream(struct input_stream *is)
+{
+ struct asx_parser parser = {
+ .songs = NULL,
+ .state = ROOT,
+ };
+ struct asx_playlist *playlist;
+ GMarkupParseContext *context;
+ char buffer[1024];
+ size_t nbytes;
+ bool success;
+ GError *error = NULL;
+
+ /* parse the ASX XML file */
+
+ context = g_markup_parse_context_new(&asx_parser,
+ G_MARKUP_TREAT_CDATA_AS_TEXT,
+ &parser, asx_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 #asx_playlist object from the parsed song list */
+
+ playlist = g_new(struct asx_playlist, 1);
+ playlist_provider_init(&playlist->base, &asx_playlist_plugin);
+ playlist->songs = g_slist_reverse(parser.songs);
+ parser.songs = NULL;
+
+ g_markup_parse_context_free(context);
+
+ return &playlist->base;
+}
+
+static void
+asx_close(struct playlist_provider *_playlist)
+{
+ struct asx_playlist *playlist = (struct asx_playlist *)_playlist;
+
+ g_slist_foreach(playlist->songs, song_free_callback, NULL);
+ g_slist_free(playlist->songs);
+ g_free(playlist);
+}
+
+static struct song *
+asx_read(struct playlist_provider *_playlist)
+{
+ struct asx_playlist *playlist = (struct asx_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 asx_suffixes[] = {
+ "asx",
+ NULL
+};
+
+static const char *const asx_mime_types[] = {
+ "video/x-ms-asf",
+ NULL
+};
+
+const struct playlist_plugin asx_playlist_plugin = {
+ .name = "asx",
+
+ .open_stream = asx_open_stream,
+ .close = asx_close,
+ .read = asx_read,
+
+ .suffixes = asx_suffixes,
+ .mime_types = asx_mime_types,
+};
diff --git a/src/playlist/asx_playlist_plugin.h b/src/playlist/asx_playlist_plugin.h
new file mode 100644
index 000000000..021e97f56
--- /dev/null
+++ b/src/playlist/asx_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_ASX_PLAYLIST_PLUGIN_H
+#define MPD_PLAYLIST_ASX_PLAYLIST_PLUGIN_H
+
+extern const struct playlist_plugin asx_playlist_plugin;
+
+#endif
diff --git a/src/playlist_list.c b/src/playlist_list.c
index d68f6fa1d..f8d2839d6 100644
--- a/src/playlist_list.c
+++ b/src/playlist_list.c
@@ -23,6 +23,7 @@
#include "playlist/xspf_playlist_plugin.h"
#include "playlist/lastfm_playlist_plugin.h"
#include "playlist/pls_playlist_plugin.h"
+#include "playlist/asx_playlist_plugin.h"
#include "input_stream.h"
#include "uri.h"
#include "utils.h"
@@ -38,6 +39,7 @@ static const struct playlist_plugin *const playlist_plugins[] = {
&m3u_playlist_plugin,
&xspf_playlist_plugin,
&pls_playlist_plugin,
+ &asx_playlist_plugin,
#ifdef ENABLE_LASTFM
&lastfm_playlist_plugin,
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 23:23:50 +0000