dmap-share.c 36.5 KB
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
 *
 * Implmentation of DMAP (e.g., iTunes Music or iPhoto Picture) sharing
 *
 * Copyright (C) 2005 Charles Schmidt <cschmidt2@emich.edu>
 *
 * Modifications Copyright (C) 2008 W. Michael Petullo <mike@flyn.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#include "config.h"

#include <time.h>
#include <string.h>
#include <stdlib.h>

#include <glib/gi18n.h>

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#include <libdmapsharing/dmap.h>
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#include <libdmapsharing/dmap-structure.h>

#define TYPE_OF_SERVICE "_daap._tcp"
#define STANDARD_DAAP_PORT 3689
#define STANDARD_DPAP_PORT 8770
#define DMAP_VERSION 2.0
#define DAAP_VERSION 3.0
#define DMAP_TIMEOUT 1800
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#define DMAP_STATUS_OK 200
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typedef enum {
	DMAP_SHARE_AUTH_METHOD_NONE              = 0,
	DMAP_SHARE_AUTH_METHOD_NAME_AND_PASSWORD = 1,
	DMAP_SHARE_AUTH_METHOD_PASSWORD          = 2
} DMAPShareAuthMethod;

enum {
	PROP_0,
	PROP_NAME,
	PROP_PASSWORD,
	PROP_REVISION_NUMBER,
	PROP_AUTH_METHOD,
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	PROP_DB,
	PROP_CONTAINER_DB,
	PROP_TRANSCODE_MIMETYPE
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};

struct DMAPSharePrivate {
	gchar *name;
	guint port;
	char *password;
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	/* FIXME: eventually, this should be determined dynamically, based
	 * on what client has connected and its supported mimetypes.
	 */
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	char *transcode_mimetype;
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	DMAPShareAuthMethod auth_method;

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	/* mDNS/DNS-SD publishing things */
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	gboolean server_active;
	gboolean published;
	DmapMdnsPublisher *publisher;

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	/* HTTP server things */
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	SoupServer *server;
	guint revision_number;

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	/* The media database */
	DMAPDb *db;
	DMAPContainerDb *container_db;

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	GHashTable *session_ids;
};

static void dmap_share_init       (DMAPShare *share);
static void dmap_share_class_init (DMAPShareClass *klass);

G_DEFINE_ABSTRACT_TYPE (DMAPShare, dmap_share, G_TYPE_OBJECT)

#define DMAP_SHARE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
				   TYPE_DMAP_SHARE, DMAPSharePrivate))

static gboolean
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_dmap_share_soup_auth_callback (SoupAuthDomain *auth_domain,
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		    SoupMessage    *msg,
		    const char     *username,
		    gpointer        password,
		    DMAPShare    *share)
{
	gboolean    allowed;
	const char *path;

	path = soup_message_get_uri (msg)->path;
	g_debug ("Auth request for %s, user %s", path, username);

	allowed = !strcmp (password, share->priv->password);
	g_debug ("Auth request: %s", allowed ? "ALLOWED" : "DENIED");

	return allowed;
}

static void server_info_adapter (SoupServer *server,
				 SoupMessage *message,
				 const char *path,
				 GHashTable *query,
				 SoupClientContext *context,
				 DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->server_info (share,
						   server,
						   message,
						   path,
						   query,
						   context);
}

static void content_codes_adapter (SoupServer *server,
				   SoupMessage *message,
				   const char *path,
				   GHashTable *query,
				   SoupClientContext *context,
				   DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->content_codes (share,
						     server,
						     message,
						     path,
						     query,
						     context);
}

static void login_adapter (SoupServer *server,
			   SoupMessage *message,
			   const char *path,
			   GHashTable *query,
			   SoupClientContext *context,
			   DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->login (share,
					     server,
					     message,
					     path,
					     query,
					     context);
}

static void logout_adapter (SoupServer *server,
			    SoupMessage *message,
			    const char *path,
			    GHashTable *query,
			    SoupClientContext *context,
			    DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->logout (share,
					      server,
					      message,
					      path,
					      query,
					      context);
}

static void update_adapter (SoupServer *server,
			    SoupMessage *message,
			    const char *path,
			    GHashTable *query,
			    SoupClientContext *context,
			    DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->update (share,
					      server,
					      message,
					      path,
					      query,
					      context);
}

static void databases_adapter (SoupServer *server,
			       SoupMessage *message,
			       const char *path,
			       GHashTable *query,
			       SoupClientContext *context,
			       DMAPShare *share)
{
	DMAP_SHARE_GET_CLASS (share)->databases (share,
						 server,
						 message,
						 path,
						 query,
						 context);
}

gboolean
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_dmap_share_server_start (DMAPShare *share)
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{
	guint port = DMAP_SHARE_GET_CLASS (share)->get_desired_port (share);
	gboolean              password_required;

	share->priv->server = soup_server_new (SOUP_SERVER_PORT, port, NULL);
	if (share->priv->server == NULL) {
		g_warning ("Unable to start music sharing server on port %d, trying any open port", port);
		share->priv->server = soup_server_new (SOUP_SERVER_PORT, SOUP_ADDRESS_ANY_PORT, NULL);

		if (share->priv->server == NULL) {
			g_warning ("Unable to start music sharing server");
			return FALSE;
		}
	}

	share->priv->port = (guint)soup_server_get_port (share->priv->server);
	g_debug ("Started DMAP server on port %u", share->priv->port);

	password_required = (share->priv->auth_method != DMAP_SHARE_AUTH_METHOD_NONE);

	if (password_required) {
		SoupAuthDomain *auth_domain;

		auth_domain = soup_auth_domain_basic_new (SOUP_AUTH_DOMAIN_REALM, "Music Sharing",
							  SOUP_AUTH_DOMAIN_ADD_PATH, "/login",
							  SOUP_AUTH_DOMAIN_ADD_PATH, "/update",
							  SOUP_AUTH_DOMAIN_ADD_PATH, "/database",
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							  SOUP_AUTH_DOMAIN_FILTER, _dmap_share_soup_auth_filter,
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							  NULL);
		soup_auth_domain_basic_set_auth_callback (auth_domain,
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							  (SoupAuthDomainBasicAuthCallback) _dmap_share_soup_auth_callback,
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							  g_object_ref (share),
							  g_object_unref);
		soup_server_add_auth_domain (share->priv->server, auth_domain);
	}

	soup_server_add_handler (share->priv->server, "/server-info",
				 (SoupServerCallback) server_info_adapter,
				 share, NULL);
	soup_server_add_handler (share->priv->server, "/content-codes",
				 (SoupServerCallback) content_codes_adapter,
				 share, NULL);
	soup_server_add_handler (share->priv->server, "/login",
				 (SoupServerCallback) login_adapter,
				 share, NULL);
	soup_server_add_handler (share->priv->server, "/logout",
				 (SoupServerCallback) logout_adapter,
				 share, NULL);
	soup_server_add_handler (share->priv->server, "/update",
				 (SoupServerCallback) update_adapter,
				 share, NULL);
	soup_server_add_handler (share->priv->server, "/databases",
				 (SoupServerCallback) databases_adapter,
				 share, NULL);
	soup_server_run_async (share->priv->server);

	/* using direct since there is no g_uint_hash or g_uint_equal */
	share->priv->session_ids = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, g_free);

	share->priv->server_active = TRUE;

	return TRUE;
}

static gboolean
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_dmap_share_server_stop (DMAPShare *share)
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{
	g_warning ("Stopping music sharing server on port %d", share->priv->port);

	if (share->priv->server) {
		soup_server_quit (share->priv->server);
		g_object_unref (share->priv->server);
		share->priv->server = NULL;
	}

	if (share->priv->session_ids) {
		g_hash_table_destroy (share->priv->session_ids);
		share->priv->session_ids = NULL;
	}

	share->priv->server_active = FALSE;

	return TRUE;
}

gboolean
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_dmap_share_publish_start (DMAPShare *share)
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{
	gchar *nameprop;
	GError  *error;
	gboolean res;
	gboolean password_required;

	/* FIXME: this is done throughout dmap-share.c. Is this the best way? */
	g_object_get ((gpointer) share, "name", &nameprop, NULL);

	password_required = (share->priv->auth_method != DMAP_SHARE_AUTH_METHOD_NONE);

	error = NULL;
	res = dmap_mdns_publisher_publish (share->priv->publisher,
					      nameprop,
					      share->priv->port,
					      DMAP_SHARE_GET_CLASS (share)->get_type_of_service (share),
					      password_required,
					      &error);

	if (res == FALSE) {
		if (error != NULL) {
			g_warning ("Unable to notify network of media sharing: %s", error->message);
			g_error_free (error);
		} else {
			g_warning ("Unable to notify network of media sharing");
		}
		return FALSE;
	} else {
		g_debug ("Published DMAP server information to mdns");
	}

	g_free (nameprop);

	return TRUE;
}

static gboolean
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_dmap_share_publish_stop (DMAPShare *share)
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{
	if (share->priv->publisher) {
		gboolean res;
		GError  *error;
		error = NULL;
		res = dmap_mdns_publisher_withdraw (share->priv->publisher, &error);
		if (error != NULL) {
			g_warning ("Unable to withdraw music sharing service: %s", error->message);
			g_error_free (error);
		}
		return res;
	}

	share->priv->published = FALSE;
	return TRUE;
}

static void
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_dmap_share_restart (DMAPShare *share)
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{
	gboolean res;

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	_dmap_share_server_stop (share);
	res = _dmap_share_server_start (share);
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	if (res) {
		/* To update information just publish again */
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		_dmap_share_publish_start (share);
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	} else {
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		_dmap_share_publish_stop (share);
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	}
}

static void
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_dmap_share_maybe_restart (DMAPShare *share)
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{
	if (share->priv->published) {
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		_dmap_share_restart (share);
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	}
}

static void
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_dmap_share_set_name (DMAPShare *share, const char  *name)
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{
	GError *error;
	gboolean res;

	g_return_if_fail (share != NULL);

	g_free (share->priv->name);
	share->priv->name = g_strdup (name);

	error = NULL;
	res = dmap_mdns_publisher_set_name (share->priv->publisher,
					    name,
					    &error);
	if (error != NULL) {
		g_warning ("Unable to change MDNS service name: %s",
			   error->message);
		g_error_free (error);
	}
}

static void
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_dmap_share_set_password (DMAPShare *share, const char  *password)
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{
	g_return_if_fail (share != NULL);

	if (share->priv->password && password &&
	    strcmp (password, share->priv->password) == 0) {
		return;
	}

	g_free (share->priv->password);
	share->priv->password = g_strdup (password);
	if (password != NULL) {
		share->priv->auth_method = DMAP_SHARE_AUTH_METHOD_PASSWORD;
	} else {
		share->priv->auth_method = DMAP_SHARE_AUTH_METHOD_NONE;
	}

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	_dmap_share_maybe_restart (share);
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}

static void
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_dmap_share_set_property (GObject *object,
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			 guint prop_id,
			 const GValue *value,
			 GParamSpec *pspec)
{
	DMAPShare *share = DMAP_SHARE (object);

	switch (prop_id) {
	case PROP_NAME:
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		_dmap_share_set_name (share, g_value_get_string (value));
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		break;
	case PROP_PASSWORD:
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		_dmap_share_set_password (share, g_value_get_string (value));
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		break;
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	case PROP_DB:
                share->priv->db = (DMAPDb *) g_value_get_pointer (value);
                break;
        case PROP_CONTAINER_DB:
                share->priv->container_db = (DMAPContainerDb *) g_value_get_pointer (value);
                break;
        case PROP_TRANSCODE_MIMETYPE:
		/* FIXME: get or dup? */
                share->priv->transcode_mimetype = g_value_dup_string (value);
                break;
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	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
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_dmap_share_get_property (GObject *object,
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			 guint prop_id,
			 GValue *value,
			 GParamSpec *pspec)
{
	DMAPShare *share = DMAP_SHARE (object);

	switch (prop_id) {
	case PROP_NAME:
		g_value_set_string (value, share->priv->name);
		break;
	case PROP_PASSWORD:
		g_value_set_string (value, share->priv->password);
		break;
	case PROP_REVISION_NUMBER:
		g_value_set_uint (value,
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				  _dmap_share_get_revision_number
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					(DMAP_SHARE (object)));
		break;
	case PROP_AUTH_METHOD:
		g_value_set_uint (value,
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				  _dmap_share_get_auth_method
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					(DMAP_SHARE (object)));
		break;
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	case PROP_DB:
                g_value_set_pointer (value, share->priv->db);
                break;
        case PROP_CONTAINER_DB:
                g_value_set_pointer (value, share->priv->container_db);
                break;
        case PROP_TRANSCODE_MIMETYPE:
                g_value_set_string (value, share->priv->transcode_mimetype);
                break;
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	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
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_dmap_share_finalize (GObject *object)
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{
	DMAPShare *share = DMAP_SHARE (object);

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	g_debug ("Finalizing DMAPShare");

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	if (share->priv->published) {
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		_dmap_share_publish_stop (share);
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	}

	if (share->priv->server_active) {
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		_dmap_share_server_stop (share);
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	}

	g_free (share->priv->name);

	if (share->priv->publisher) {
		g_object_unref (share->priv->publisher);
	}

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	G_OBJECT_CLASS (dmap_share_parent_class)->finalize (object);
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}

static void
dmap_share_class_init (DMAPShareClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

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	object_class->get_property = _dmap_share_get_property;
	object_class->set_property = _dmap_share_set_property;
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	object_class->finalize     = _dmap_share_finalize;
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	/* Pure virtual methods: */
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	klass->get_desired_port     = NULL;
	klass->get_type_of_service  = NULL;
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	klass->message_add_standard_headers = NULL;
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	klass->get_meta_data_map    = NULL;
	klass->add_entry_to_mlcl    = NULL;
	klass->databases_browse_xxx = NULL;
	klass->databases_items_xxx  = NULL;
	klass->content_codes        = _dmap_share_content_codes;
	klass->login                = _dmap_share_login;
	klass->logout               = _dmap_share_logout;
	klass->update               = _dmap_share_update;
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	/* Virtual methods: */
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	klass->published      = _dmap_share_published;
	klass->name_collision = _dmap_share_name_collision;
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	klass->databases      = _dmap_share_databases;
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	g_object_class_install_property (object_class,
					 PROP_NAME,
					 g_param_spec_string ("name",
						 	    "Name",
							    "Share Name",
							    NULL,
							    G_PARAM_READWRITE));
	g_object_class_install_property (object_class,
					 PROP_PASSWORD,
					 g_param_spec_string ("password",
						      "Authentication password",
						      "Authentication password",
						      NULL,
						      G_PARAM_READWRITE));

	g_object_class_install_property (object_class,
					 PROP_REVISION_NUMBER,
					 g_param_spec_uint ("revision_number",
					 		    "Revision number",
							    "Revision number",
							    0,
							    G_MAXINT,
							    0,
							    G_PARAM_READWRITE));

	g_object_class_install_property (object_class,
					 PROP_AUTH_METHOD,
					 g_param_spec_uint ("auth_method",
					 	"Authentication method",
						"Authentication method",
						DMAP_SHARE_AUTH_METHOD_NONE,
						DMAP_SHARE_AUTH_METHOD_PASSWORD,
						0,
						G_PARAM_READWRITE));
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	g_object_class_install_property (object_class,
                                         PROP_DB,
                                         g_param_spec_pointer ("db",
                                                              "DB",
                                                              "DB object",
                                                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));

        g_object_class_install_property (object_class,
                                         PROP_CONTAINER_DB,
                                         g_param_spec_pointer ("container-db",
                                                              "Container DB",
                                                              "Container DB object",
                                                               G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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	g_object_class_install_property (object_class,
                                         PROP_TRANSCODE_MIMETYPE,
                                         g_param_spec_string ("transcode-mimetype",
                                                             "Transcode mimetype",
                                                             "Set mimetype of stream after transcoding",
                                                             NULL,
                                                             G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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	g_type_class_add_private (klass, sizeof (DMAPSharePrivate));
}

static void published_adapter (DmapMdnsPublisher *publisher,
			       const char          *name,
			       DMAPShare         *share)
{
	DMAP_SHARE_GET_CLASS (share)->published (share, publisher, name);
}

static void name_collision_adapter (DmapMdnsPublisher *publisher,
				    const char          *name,
				    DMAPShare         *share)
{
	DMAP_SHARE_GET_CLASS (share)->name_collision (share, publisher, name);
}

static void
dmap_share_init (DMAPShare *share)
{
	share->priv = DMAP_SHARE_GET_PRIVATE (share);

	share->priv->revision_number = 5;
	share->priv->auth_method = DMAP_SHARE_AUTH_METHOD_NONE;
	share->priv->publisher = dmap_mdns_publisher_new ();

	g_signal_connect_object (share->priv->publisher,
				 "published",
				 G_CALLBACK (published_adapter),
				 share, 0);
	g_signal_connect_object (share->priv->publisher,
				 "name-collision",
				 G_CALLBACK (name_collision_adapter),
				 share, 0);
}

guint
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_dmap_share_get_auth_method (DMAPShare *share)
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{
	return share->priv->auth_method;
}

guint
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_dmap_share_get_revision_number (DMAPShare *share)
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{
	return share->priv->revision_number;
}



static gboolean
get_session_id (GHashTable *query,
		guint32    *id)
{
	char *session_id_str;
	guint32 session_id;

	session_id_str = g_hash_table_lookup (query, "session-id");
	if (session_id_str == NULL) {
		g_warning ("Session id not found.");
		return FALSE;
	}

	session_id = (guint32) strtoul (session_id_str, NULL, 10);
	if (id != NULL) {
		*id = session_id;
	}
	return TRUE;
}

gboolean
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_dmap_share_get_revision_number_from_query (GHashTable *query,
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		     guint *number)
{
	char *revision_number_str;
	guint revision_number;

	revision_number_str = g_hash_table_lookup (query, "revision-number");
	if (revision_number_str == NULL) {
		g_warning ("Client asked for an update without a rev. number");
		return FALSE;
	}

	revision_number = strtoul (revision_number_str, NULL, 10);
	if (number != NULL) {
		*number = revision_number;
	}
	return TRUE;
}

gboolean
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_dmap_share_session_id_validate (DMAPShare       *share,
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		     SoupClientContext *context,
		     SoupMessage       *message,
		     GHashTable        *query,
		     guint32           *id)
{
	guint32     session_id;
	gboolean    res;
	const char *addr;
	const char *remote_address;

	if (id) {
		*id = 0;
	}

	res = get_session_id (query, &session_id);
	if (! res) {
		g_warning ("Validation failed: Unable to parse session id");
		return FALSE;
	}

	/* check hash for remote address */
	addr = g_hash_table_lookup (share->priv->session_ids,
				    GUINT_TO_POINTER (session_id));
	if (addr == NULL) {
		g_warning ("Validation failed: Unable to lookup session id %u",
			   session_id);
		return FALSE;
	}

	remote_address = soup_client_context_get_host (context);
	g_debug ("Validating session id %u from %s matches %s",
		  session_id, remote_address, addr);
	if (remote_address == NULL || strcmp (addr, remote_address) != 0) {
		g_warning ("Validation failed: Remote address does not match stored address");
		return FALSE;
	}

	if (id) {
		*id = session_id;
	}

	return TRUE;
}

static guint32
session_id_generate (DMAPShare       *share,
		     SoupClientContext *context)
{
	guint32 id;

	id = g_random_int ();

	return id;
}

guint32
742
_dmap_share_session_id_create (DMAPShare       *share,
743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767
		   SoupClientContext *context)
{
	guint32     id;
	const char *addr;
	char       *remote_address;

	do {
		/* create a unique session id */
		id = session_id_generate (share, context);
		g_debug ("Generated session id %u", id);

		/* if already used, try again */
		addr = g_hash_table_lookup (share->priv->session_ids,
					    GUINT_TO_POINTER (id));
	} while	(addr != NULL);

	/* store session id and remote address */
	remote_address = g_strdup (soup_client_context_get_host (context));
	g_hash_table_insert (share->priv->session_ids, GUINT_TO_POINTER (id),
			     remote_address);

	return id;
}

void
768
_dmap_share_session_id_remove (DMAPShare       *share,
769 770 771 772 773 774 775
		   SoupClientContext *context,
		   guint32            id)
{
	g_hash_table_remove (share->priv->session_ids, GUINT_TO_POINTER (id));
}

void
776
_dmap_share_message_set_from_dmap_structure (DMAPShare *share,
777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792
					    SoupMessage *message,
				    	    GNode *structure)
{
	gchar *resp;
	guint length;

	resp = dmap_structure_serialize (structure, &length);

	if (resp == NULL) {
		g_warning ("Serialize gave us null?\n");
		return;
	}

	soup_message_set_response (message, "application/x-dmap-tagged",
				   SOUP_MEMORY_TAKE, resp, length);

793 794
	DMAP_SHARE_GET_CLASS (share)->message_add_standard_headers (share,
								    message);
795 796 797 798 799 800

	soup_message_set_status (message, SOUP_STATUS_OK);
}


gboolean
801
_dmap_share_client_requested (bitwise bits,
802 803 804 805 806 807
		  gint field)
{
	return 0 != (bits & (((bitwise) 1) << field));
}

gboolean
808
_dmap_share_uri_is_local (const char *text_uri)
809 810 811 812 813
{
        return g_str_has_prefix (text_uri, "file://");
}

gboolean
814
_dmap_share_soup_auth_filter (SoupAuthDomain *auth_domain,
815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834
		  SoupMessage    *msg,
		  gpointer        user_data)
{
	const char *path;

	path = soup_message_get_uri (msg)->path;
	if (g_str_has_prefix (path, "/databases/")) {
		/* Subdirectories of /databases don't actually require
		 * authentication
		 */
		return FALSE;
	} else {
		/* Everything else in auth_domain's paths, including
		 * /databases itself, does require auth.
		 */
		return TRUE;
	}
}

void
835
_dmap_share_published (DMAPShare         *share,
836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856
		      DmapMdnsPublisher *publisher,
		      const char        *name)
{
	gchar *nameprop;

	g_object_get ((gpointer) share, "name", &nameprop, NULL);

        if (nameprop == NULL || name == NULL) {
		g_free (nameprop);
                return;
        }

        if (strcmp (nameprop, name) == 0) {
                g_debug ("mDNS publish successful");
                share->priv->published = TRUE;
        }

	g_free (nameprop);
}

void
857
_dmap_share_name_collision (DMAPShare         *share,
858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873
			   DmapMdnsPublisher *publisher,
			   const char        *name)
{
	gchar *nameprop;
        char *new_name = "FIXME";

	g_object_get ((gpointer) share, "name", &nameprop, NULL);

        if (nameprop == NULL || name == NULL) {
		g_free (nameprop);
                return;
        }

        if (strcmp (nameprop, name) == 0) {
                g_warning ("Duplicate share name on mDNS");

874
                _dmap_share_set_name (DMAP_SHARE(share), new_name);
875 876 877 878 879 880 881 882 883
                g_free (new_name);
        }

	g_free (nameprop);

        return;
}

void
884
_dmap_share_content_codes (DMAPShare *share,
885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920
		  SoupServer        *server,
		  SoupMessage       *message,
		  const char        *path,
		  GHashTable        *query,
		  SoupClientContext *context)
{
/* MCCR content codes response
 * 	MSTT status
 * 	MDCL dictionary
 * 		MCNM content codes number
 * 		MCNA content codes name
 * 		MCTY content codes type
 * 	MDCL dictionary
 * 	...
 */
	const DMAPContentCodeDefinition *defs;
	guint num_defs = 0;
	guint i;
	GNode *mccr;

	g_debug ("Path is %s.", path);

	defs = dmap_content_codes (&num_defs);

	mccr = dmap_structure_add (NULL, DMAP_CC_MCCR);
	dmap_structure_add (mccr, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);

	for (i = 0; i < num_defs; i++) {
		GNode *mdcl;

		mdcl = dmap_structure_add (mccr, DMAP_CC_MDCL);
		dmap_structure_add (mdcl, DMAP_CC_MCNM, dmap_content_code_string_as_int32(defs[i].string));
		dmap_structure_add (mdcl, DMAP_CC_MCNA, defs[i].name);
		dmap_structure_add (mdcl, DMAP_CC_MCTY, (gint32) defs[i].type);
	}

921
	_dmap_share_message_set_from_dmap_structure (share, message, mccr);
922 923 924 925
	dmap_structure_destroy (mccr);
}

void
926
_dmap_share_login (DMAPShare *share,
927 928 929 930 931 932 933 934 935 936 937 938 939 940 941
	  SoupServer        *server,
	  SoupMessage       *message,
	  const char        *path,
	  GHashTable        *query,
	  SoupClientContext *context)
{
/* MLOG login response
 * 	MSTT status
 * 	MLID session id
 */
	GNode *mlog;
	guint32 session_id;

	g_debug ("Path is %s.", path);

942
	session_id = _dmap_share_session_id_create (share, context);
943 944 945 946 947

	mlog = dmap_structure_add (NULL, DMAP_CC_MLOG);
	dmap_structure_add (mlog, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
	dmap_structure_add (mlog, DMAP_CC_MLID, session_id);

948
	_dmap_share_message_set_from_dmap_structure (share, message, mlog);
949 950 951 952
	dmap_structure_destroy (mlog);
}

void
953
_dmap_share_logout (DMAPShare *share,
954 955 956 957 958 959 960 961 962 963 964
	   SoupServer        *server,
	   SoupMessage       *message,
	   const char        *path,
	   GHashTable        *query,
	   SoupClientContext *context)
{
	int     status;
	guint32 id;

	g_debug ("Path is %s.", path);

965 966
	if (_dmap_share_session_id_validate (share, context, message, query, &id)) {
		_dmap_share_session_id_remove (share, context, id);
967 968 969 970 971 972 973 974 975 976

		status = SOUP_STATUS_NO_CONTENT;
	} else {
		status = SOUP_STATUS_FORBIDDEN;
	}

	soup_message_set_status (message, status);
}

void
977
_dmap_share_update (DMAPShare *share,
978 979 980 981 982 983 984 985 986 987 988
	   SoupServer        *server,
	   SoupMessage       *message,
	   const char        *path,
	   GHashTable        *query,
	   SoupClientContext *context)
{
	guint    revision_number;
	gboolean res;

	g_debug ("Path is %s.", path);

989
	res = _dmap_share_get_revision_number_from_query (query, &revision_number);
990

991
	if (res && revision_number != _dmap_share_get_revision_number (share)) {
992 993 994 995 996 997 998 999
		/* MUPD update response
		 * 	MSTT status
		 * 	MUSR server revision
		 */
		GNode *mupd;

		mupd = dmap_structure_add (NULL, DMAP_CC_MUPD);
		dmap_structure_add (mupd, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
1000
		dmap_structure_add (mupd, DMAP_CC_MUSR, (gint32) _dmap_share_get_revision_number (share));
1001

1002
		_dmap_share_message_set_from_dmap_structure (share, message, mupd);
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013
		dmap_structure_destroy (mupd);
	} else {
		/* FIXME: This seems like a bug. It just leaks the
		 * message (and socket) without ever replying.
		 */
		g_object_ref (message);
		soup_server_pause_message (server, message);
	}
}

bitwise
1014
_dmap_share_parse_meta_str (const char *attrs, struct DMAPMetaDataMap *mdm)
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029
{
	guint i;
	bitwise bits = 0;

	/* iTunes 8 uses meta=all for /databases/1/items query: */
	if (strcmp (attrs, "all") == 0) {
		bits = ~0;
	} else {
		gchar **attrsv;
	
		attrsv = g_strsplit (attrs, ",", -1);

		for (i = 0; attrsv[i]; i++) {
			guint j;

1030
			for (j = 0; mdm[j].tag; j++) {
1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
				if (strcmp (mdm[j].tag, attrsv[i]) == 0) {
					bits |= (((bitwise) 1) << mdm[j].md);
				}
			}
		}
		g_strfreev (attrsv);
	}	

	return bits;
}

bitwise
1043
_dmap_share_parse_meta (GHashTable *query, struct DMAPMetaDataMap *mdm)
1044 1045 1046 1047 1048 1049 1050
{
	const gchar *attrs;

	attrs = g_hash_table_lookup (query, "meta");
	if (attrs == NULL) {
		return 0;
	}
1051
	return _dmap_share_parse_meta_str (attrs, mdm);
1052 1053 1054
}

void
1055
_dmap_share_add_playlist_to_mlcl (gpointer id, DMAPContainerRecord *record, gpointer mlcl)
1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
{
	/* MLIT listing item
	 * MIID item id
	 * MPER persistent item id
	 * MINM item name
	 * MIMC item count
	 */
	GNode *mlit;
	guint num_songs;
	gchar *name;

	num_songs = dmap_container_record_get_entry_count (record);
	g_object_get (record, "name", &name, NULL);

	mlit = dmap_structure_add ((GNode *) mlcl, DMAP_CC_MLIT);
	dmap_structure_add (mlit, DMAP_CC_MIID, dmap_container_record_get_id (record));
	/* we don't have a persistant ID for playlists, unfortunately */
	dmap_structure_add (mlit, DMAP_CC_MPER, (gint64) dmap_container_record_get_id (record));
	dmap_structure_add (mlit, DMAP_CC_MINM, name);
	dmap_structure_add (mlit, DMAP_CC_MIMC, (gint32) num_songs);

	return;
} 
1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401

/* FIXME: Handle ('...') and share code with DAAPShare. */
static GSList *
build_filter (gchar *filterstr)
{
	/* Produces a list of lists, each being a filter definition that may
	 * be one or more filter criteria.
	 */

	/* A filter string looks like (iTunes):
	 * 'daap.songgenre:Other'+'daap.songartist:Band'.
	 * or (Roku):
	 * 'daap.songgenre:Other' 'daap.songartist:Band'.
	 * or
         * 'dmap.itemid:1000'
	 * or
         * 'dmap.itemid:1000','dmap:itemid:1001'
	 * or
	 * 'daap.songgenre:Foo'+'daap.songartist:Bar'+'daap.songalbum:Baz'
	 * or (iPhoto '09)
	 * ('daap.idemid:1000','dmap:itemid:1001')
         */

	size_t len;
	GSList *list = NULL;

	g_debug ("Filter string is %s.", filterstr);

	len = strlen (filterstr);
	filterstr = *filterstr == '(' ? filterstr + 1 : filterstr;
	/* FIXME: I thought this should be -1, but there is a trailing ' ' in iTunes '09: */
	filterstr[len - 2] = filterstr[len - 2] == ')' ? 0x00 : filterstr[len - 2];

	if (filterstr != NULL) {
		int i;
		gchar **t1 = g_strsplit (filterstr, ",", 0);

		for (i = 0; t1[i]; i++) {
			int j;
			GSList *filter = NULL;
			gchar **t2;

			t2 = _dmap_db_strsplit_using_quotes (t1[i]);

			for (j = 0; t2[j]; j++) {
				FilterDefinition *def;
				gchar **t3;

				t3 = g_strsplit (t2[j], ":", 0);

				if (g_strcasecmp ("dmap.itemid", t3[0]) == 0) {
					def = g_new0 (FilterDefinition, 1);
					def->value = g_strdup (t3[1]);
					def->record_get_value = NULL;
				} else {
					g_warning ("Unknown category: %s", t3[0]);
					def = NULL;
				}

				if (def != NULL)
					filter = g_slist_append (filter, def);

				g_strfreev (t3);
			}

			list = g_slist_append (list, filter);

			g_strfreev (t2);
		}
		g_strfreev (t1);
	}

        return list;
}

static void
free_filter (GSList *filter)
{
        GSList *ptr1, *ptr2;

        for (ptr1 = filter; ptr1 != NULL; ptr1 = ptr1->next) {
                for (ptr2 = ptr1->data; ptr2 != NULL; ptr2 = ptr2->next) {
                        g_free (((FilterDefinition *) ptr2->data)->value);
                        g_free (ptr2->data);
                }
        }
}

static void
debug_param (gpointer key, gpointer val, gpointer user_data)
{
        g_debug ("%s %s", (char *) key, (char *) val);
}

void
_dmap_share_databases (DMAPShare *share,
		       SoupServer        *server,
		       SoupMessage       *message,
		       const char        *path,
		       GHashTable        *query,
		       SoupClientContext *context)

{
	const char *rest_of_path;

	g_debug ("Path is %s.", path);
	g_hash_table_foreach (query, debug_param, NULL);

	if (! _dmap_share_session_id_validate (share, context, message, query, NULL)) {
		soup_message_set_status (message, SOUP_STATUS_FORBIDDEN);
		return;
	}

	rest_of_path = strchr (path + 1, '/');

	if (rest_of_path == NULL) {
	/* AVDB server databases
	 * 	MSTT status
	 * 	MUTY update type
	 * 	MTCO specified total count
	 * 	MRCO returned count
	 * 	MLCL listing
	 * 		MLIT listing item
	 * 			MIID item id
	 * 			MPER persistent id
	 * 			MINM item name
	 * 			MIMC item count
	 * 			MCTC container count
	 */
		gchar *nameprop;
		GNode *avdb;
		GNode *mlcl;
		GNode *mlit;

		g_object_get ((gpointer) share, "name", &nameprop, NULL);

		avdb = dmap_structure_add (NULL, DMAP_CC_AVDB);
		dmap_structure_add (avdb, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
		dmap_structure_add (avdb, DMAP_CC_MUTY, 0);
		dmap_structure_add (avdb, DMAP_CC_MTCO, (gint32) 1);
		dmap_structure_add (avdb, DMAP_CC_MRCO, (gint32) 1);
		mlcl = dmap_structure_add (avdb, DMAP_CC_MLCL);
		mlit = dmap_structure_add (mlcl, DMAP_CC_MLIT);
		dmap_structure_add (mlit, DMAP_CC_MIID, (gint32) 1);
		dmap_structure_add (mlit, DMAP_CC_MPER, (gint64) 1);
		dmap_structure_add (mlit, DMAP_CC_MINM, nameprop);
		dmap_structure_add (mlit, DMAP_CC_MIMC, dmap_db_count (share->priv->db));
		dmap_structure_add (mlit, DMAP_CC_MCTC, (gint32) 1);

		_dmap_share_message_set_from_dmap_structure (share, message, avdb);
		dmap_structure_destroy (avdb);

		g_free (nameprop);
	} else if (g_ascii_strcasecmp ("/1/items", rest_of_path) == 0) {
	/* ADBS database songs
	 * 	MSTT status
	 * 	MUTY update type
	 * 	MTCO specified total count
	 * 	MRCO returned count
	 * 	MLCL listing
	 * 		MLIT
	 * 			attrs
	 * 		MLIT
	 * 		...
	 */
		GNode *adbs;
		gchar *record_query;
		GHashTable *records = NULL;
		struct DMAPMetaDataMap *map;
		gint32 num_songs;
		struct MLCL_Bits mb = {NULL,0};

		record_query = g_hash_table_lookup (query, "query");
		if (record_query) {
			GSList *filter_def;
			filter_def = build_filter (record_query);
			records = dmap_db_apply_filter (DMAP_DB (share->priv->db), filter_def);
			g_debug ("Found %d records", g_hash_table_size (records));
			num_songs = g_hash_table_size (records);
			free_filter (filter_def);
		} else {
			num_songs = dmap_db_count (share->priv->db);
		}

		map = DMAP_SHARE_GET_CLASS (share)->get_meta_data_map (share);
		mb.bits = _dmap_share_parse_meta (query, map);

		adbs = dmap_structure_add (NULL, DMAP_CC_ADBS);
		dmap_structure_add (adbs, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
		dmap_structure_add (adbs, DMAP_CC_MUTY, 0);
		dmap_structure_add (adbs, DMAP_CC_MTCO, (gint32) num_songs);
		dmap_structure_add (adbs, DMAP_CC_MRCO, (gint32) num_songs);
		mb.mlcl = dmap_structure_add (adbs, DMAP_CC_MLCL);

		if (record_query) {
			g_hash_table_foreach (records, (GHFunc) DMAP_SHARE_GET_CLASS (share)->add_entry_to_mlcl, &mb);
			/* Free hash table but not data: */
			g_hash_table_destroy (records);
		} else {
			dmap_db_foreach (share->priv->db, (GHFunc) DMAP_SHARE_GET_CLASS (share)->add_entry_to_mlcl, &mb);
		}

		_dmap_share_message_set_from_dmap_structure (share, message, adbs);
		dmap_structure_destroy (adbs);
		adbs = NULL;
	} else if (g_ascii_strcasecmp ("/1/containers", rest_of_path) == 0) {
	/* APLY database playlists
	 * 	MSTT status
	 * 	MUTY update type
	 * 	MTCO specified total count
	 * 	MRCO returned count
	 * 	MLCL listing
	 * 		MLIT listing item
	 * 			MIID item id
	 * 			MPER persistent item id
	 * 			MINM item name
	 * 			MIMC item count
	 * 			ABPL baseplaylist (only for base)
	 * 		MLIT
	 * 		...
	 */
		gchar *nameprop;
		GNode *aply;
		GNode *mlcl;
		GNode *mlit;

		g_object_get ((gpointer) share, "name", &nameprop, NULL);

		aply = dmap_structure_add (NULL, DMAP_CC_APLY);
		dmap_structure_add (aply, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
		dmap_structure_add (aply, DMAP_CC_MUTY, 0);
		dmap_structure_add (aply, DMAP_CC_MTCO, (gint32) dmap_container_db_count (share->priv->container_db) + 1);
		dmap_structure_add (aply, DMAP_CC_MRCO, (gint32) dmap_container_db_count (share->priv->container_db) + 1);
		mlcl = dmap_structure_add (aply, DMAP_CC_MLCL);

		/* Base playlist: */
		mlit = dmap_structure_add (mlcl, DMAP_CC_MLIT);
		dmap_structure_add (mlit, DMAP_CC_MIID, (gint32) 1);
		dmap_structure_add (mlit, DMAP_CC_MPER, (gint64) 1);
		dmap_structure_add (mlit, DMAP_CC_MINM, nameprop);
		dmap_structure_add (mlit, DMAP_CC_MIMC, dmap_db_count (share->priv->db));
		dmap_structure_add (mlit, DMAP_CC_ABPL, (gchar) 1);

		dmap_container_db_foreach (share->priv->container_db, (GHFunc) _dmap_share_add_playlist_to_mlcl, (gpointer) mlcl);

		_dmap_share_message_set_from_dmap_structure (share, message, aply);
		dmap_structure_destroy (aply);

		g_free (nameprop);
	} else if (g_ascii_strncasecmp ("/1/containers/", rest_of_path, 14) == 0) {
	/* APSO playlist songs
	 * 	MSTT status
	 * 	MUTY update type
	 * 	MTCO specified total count
	 * 	MRCO returned count
	 * 	MLCL listing
	 * 		MLIT listing item
	 * 			MIKD item kind
	 * 			MIID item id
	 * 			MCTI container item id
	 * 		MLIT
	 * 		...
	 */
		GNode *apso;
		struct DMAPMetaDataMap *map;
		struct MLCL_Bits mb = {NULL,0};
		gint pl_id = atoi (rest_of_path + 14);

		map = DMAP_SHARE_GET_CLASS (share)->get_meta_data_map (share);
		mb.bits = _dmap_share_parse_meta (query, map);

		apso = dmap_structure_add (NULL, DMAP_CC_APSO);
		dmap_structure_add (apso, DMAP_CC_MSTT, (gint32) DMAP_STATUS_OK);
		dmap_structure_add (apso, DMAP_CC_MUTY, 0);

		if (pl_id == 1) {
			gint32 num_songs = dmap_db_count (share->priv->db);
			dmap_structure_add (apso, DMAP_CC_MTCO, (gint32) num_songs);
			dmap_structure_add (apso, DMAP_CC_MRCO, (gint32) num_songs);
			mb.mlcl = dmap_structure_add (apso, DMAP_CC_MLCL);

			dmap_db_foreach (share->priv->db, (GHFunc) DMAP_SHARE_GET_CLASS (share)->add_entry_to_mlcl, &mb);
		} else {
			DMAPContainerRecord *record;
			const DMAPDb *entries;
			guint num_songs;
			
			record = dmap_container_db_lookup_by_id (share->priv->container_db, pl_id);
			entries = dmap_container_record_get_entries (record);
			num_songs = dmap_db_count (entries);
			
			dmap_structure_add (apso, DMAP_CC_MTCO, (gint32) num_songs);
			dmap_structure_add (apso, DMAP_CC_MRCO, (gint32) num_songs);
			mb.mlcl = dmap_structure_add (apso, DMAP_CC_MLCL);

			dmap_db_foreach (entries, (GHFunc) DMAP_SHARE_GET_CLASS (share)->add_entry_to_mlcl, &mb);

			g_object_unref (record);
		}

		_dmap_share_message_set_from_dmap_structure (share, message, apso);
		dmap_structure_destroy (apso);
	} else if (g_ascii_strncasecmp ("/1/browse/", rest_of_path, 9) == 0) {
		 DMAP_SHARE_GET_CLASS (share)->databases_browse_xxx (
			share,
			server,
			message,
			path,
			query,
			context);
	} else if (g_ascii_strncasecmp ("/1/items/", rest_of_path, 9) == 0) {
	/* just the file :) */
		 DMAP_SHARE_GET_CLASS (share)->databases_items_xxx (
			share,
			server,
			message,
			path,
			query,
			context);
	} else {
		g_warning ("Unhandled: %s\n", path);
	}
}