daap-share.c 36.2 KB
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
 *
 * Implmentation of DAAP (e.g., iTunes Music) 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.h>

#include <libsoup/soup.h>
#include <libsoup/soup-address.h>
#include <libsoup/soup-message.h>
#include <libsoup/soup-uri.h>
#include <libsoup/soup-server.h>

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

#ifdef HAVE_GSTREAMERAPP
#include <libdmapsharing/g-gst-mp3-input-stream.h>
#include <libdmapsharing/g-gst-wav-input-stream.h>
#endif /* HAVE_GSTREAMERAPP */

static void daap_share_set_property  (GObject *object,
					 guint prop_id,
					 const GValue *value,
					 GParamSpec *pspec);
static void daap_share_get_property  (GObject *object,
					 guint prop_id,
					 GValue *value,
				 	 GParamSpec *pspec);
static void daap_share_dispose	(GObject *object);
guint daap_share_get_desired_port (DMAPShare *share);
const char *daap_share_get_type_of_service (DMAPShare *share);
void daap_share_server_info (DMAPShare         *share,
			     SoupServer        *server,
	  		     SoupMessage       *message,
			     const char        *path,
			     GHashTable        *query,
			     SoupClientContext *context);
void daap_share_databases (DMAPShare         *share,
			     SoupServer        *server,
	  		     SoupMessage       *message,
			     const char        *path,
			     GHashTable        *query,
			     SoupClientContext *context);
void daap_share_message_add_standard_headers (SoupMessage *message);

#define DAAP_TYPE_OF_SERVICE "_daap._tcp"
#define DAAP_PORT 3689

struct DAAPSharePrivate {
	/* db things */
	DMAPDb *db;
	DMAPContainerDb *container_db;

	/* FIXME: eventually, this should be determined dynamically, based
	 * on what client has connected and its supported mimetypes.
	 */
	gchar *transcode_mimetype;
};

#define DAAP_SHARE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TYPE_DAAP_SHARE, DAAPSharePrivate))

enum {
	PROP_0,
	PROP_DB,
	PROP_CONTAINER_DB,
	PROP_TRANSCODE_MIMETYPE
};

/* Provide two items as user_data to callback. */
typedef struct ChunkData {
	SoupServer *server;
	GInputStream *stream;
} ChunkData;


G_DEFINE_TYPE (DAAPShare, daap_share, TYPE_DMAP_SHARE)

/* FIXME: get rid of this global: */
static gchar *transcode_format = NULL;

static void
daap_share_class_init (DAAPShareClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);
	DMAPShareClass *parent_class = DMAP_SHARE_CLASS (object_class);

	object_class->get_property = daap_share_get_property;
	object_class->set_property = daap_share_set_property;
	object_class->dispose = daap_share_dispose;

	parent_class->get_desired_port    = daap_share_get_desired_port;
	parent_class->get_type_of_service = daap_share_get_type_of_service;
	parent_class->message_add_standard_headers = daap_share_message_add_standard_headers;
	parent_class->server_info         = daap_share_server_info;
	parent_class->databases           = daap_share_databases;

	/* FIXME?: */
	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));

	/* FIXME?: */
	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));

	g_type_class_add_private (klass, sizeof (DAAPSharePrivate));
}

static void
daap_share_init (DAAPShare *share)
{
	share->priv = DAAP_SHARE_GET_PRIVATE (share);
	/* FIXME: do I need to manually call parent _init? */
}

static void
daap_share_set_property (GObject *object,
			    guint prop_id,
			    const GValue *value,
			    GParamSpec *pspec)
{
	DAAPShare *share = DAAP_SHARE (object);

	switch (prop_id) {
	/* FIXME: */
	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:
		share->priv->transcode_mimetype = (gchar *) g_value_dup_string (value);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
daap_share_get_property (GObject *object,
			    guint prop_id,
			    GValue *value,
			    GParamSpec *pspec)
{
	DAAPShare *share = DAAP_SHARE (object);

	switch (prop_id) {
	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;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
daap_share_dispose (GObject *object)
{
	/* FIXME: implement in parent */
}

static gchar *mime_to_format (const gchar *transcode_mimetype)
{
	if (! transcode_mimetype) {
		return NULL;
	} else if (! strcmp (transcode_mimetype, "audio/wav")) {
		return g_strdup ("wav");
	} else if ( ! strcmp (transcode_mimetype, "audio/mp3")) {
		return g_strdup ("mp3");
	} else
		return NULL;
}

DAAPShare *
daap_share_new (const char *name,
		const char *password,
		DMAPDb *db,
		DMAPContainerDb *container_db,
		gchar *transcode_mimetype)
{
	DAAPShare *share;

	share = DAAP_SHARE (g_object_new (TYPE_DAAP_SHARE,
					     "name", name,
					     "password", password,
					     "db", db,
					     "container-db", container_db,
					     "transcode-mimetype", transcode_mimetype,
					     NULL));

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	_dmap_share_server_start (DMAP_SHARE (share));
	_dmap_share_publish_start (DMAP_SHARE (share));
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	transcode_format = mime_to_format (transcode_mimetype);

	return share;
}

void
daap_share_message_add_standard_headers (SoupMessage *message)
{
	soup_message_headers_append (message->response_headers, "DMAP-Server", "libdmapsharing" VERSION);
}

#define DAAP_STATUS_OK 200

#define DMAP_VERSION 2.0
#define DAAP_VERSION 3.0
#define DAAP_TIMEOUT 1800

guint
daap_share_get_desired_port (DMAPShare *share)
{
	return DAAP_PORT;
}

const char *
daap_share_get_type_of_service (DMAPShare *share)
{
	return DAAP_TYPE_OF_SERVICE;
}

void
daap_share_server_info (DMAPShare *share,
		SoupServer        *server,
	  	SoupMessage       *message,
		const char        *path,
		GHashTable        *query,
		SoupClientContext *context)
{
/* MSRV	server info response
 * 	MSTT status
 * 	MPRO daap version
 * 	APRO daap version
 * 	MINM name
 * 	MSAU authentication method
 * 	MSLR login required
 * 	MSTM timeout interval
 * 	MSAL supports auto logout
 * 	MSUP supports update
 * 	MSPI supports persistent ids
 * 	MSEX supports extensions
 * 	MSBR supports browse
 * 	MSQY supports query
 * 	MSIX supports index
 * 	MSRS supports resolve
 * 	MSDC databases count
 */
	gchar *nameprop;
	GNode *msrv;

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

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

	msrv = dmap_structure_add (NULL, DMAP_CC_MSRV);
	dmap_structure_add (msrv, DMAP_CC_MSTT, (gint32) DAAP_STATUS_OK);
	dmap_structure_add (msrv, DMAP_CC_MPRO, (gdouble) DAAP_VERSION);
	dmap_structure_add (msrv, DMAP_CC_APRO, (gdouble) DAAP_VERSION);
	/* 2/3 is for itunes 4.8 (at least).  its determined by the
	 * Client-DAAP-Version header sent, but if we decide not to support
	 * older versions..? anyway
	 *
	 * 1.0 is 1/1
	 * 2.0 is 1/2
	 * 3.0 is 2/3
	 */
	dmap_structure_add (msrv, DMAP_CC_MINM, nameprop);
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	dmap_structure_add (msrv, DMAP_CC_MSAU, _dmap_share_get_auth_method (share));
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	/* authentication method
	 * 0 is nothing
	 * 1 is name & password
	 * 2 is password only
	 */
	dmap_structure_add (msrv, DMAP_CC_MSLR, 0);
	dmap_structure_add (msrv, DMAP_CC_MSTM, (gint32) DAAP_TIMEOUT);
	dmap_structure_add (msrv, DMAP_CC_MSAL, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSUP, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSPI, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSEX, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSBR, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSQY, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSIX, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSRS, (gchar) 0);
	dmap_structure_add (msrv, DMAP_CC_MSDC, (gint32) 1);

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

	g_free (nameprop);
}

typedef enum {
	ITEM_ID = 0,
	ITEM_NAME,
	ITEM_KIND,
	PERSISTENT_ID,
	CONTAINER_ITEM_ID,
	SONG_ALBUM,
	SONG_GROUPING,
	SONG_ARTIST,
	SONG_BITRATE,
	SONG_BPM,
	SONG_COMMENT,
	SONG_COMPILATION,
	SONG_COMPOSER,
	SONG_DATA_KIND,
	SONG_DATA_URL,
	SONG_DATE_ADDED,
	SONG_DATE_MODIFIED,
	SONG_DISC_COUNT,
	SONG_DISC_NUMBER,
	SONG_DISABLED,
	SONG_EQ_PRESET,
	SONG_FORMAT,
	SONG_GENRE,
	SONG_DESCRIPTION,
	SONG_RELATIVE_VOLUME,
	SONG_SAMPLE_RATE,
	SONG_SIZE,
	SONG_START_TIME,
	SONG_STOP_TIME,
	SONG_TIME,
	SONG_TRACK_COUNT,
	SONG_TRACK_NUMBER,
	SONG_USER_RATING,
	SONG_YEAR,
	SONG_HAS_VIDEO
} DAAPMetaData;

static struct DMAPMetaDataMap meta_data_map[] = {
	{"dmap.itemid",			ITEM_ID},
    	{"dmap.itemname",		ITEM_NAME},
    	{"dmap.itemkind",		ITEM_KIND},
    	{"dmap.persistentid",		PERSISTENT_ID},
	{"dmap.containeritemid",	CONTAINER_ITEM_ID},
    	{"daap.songalbum",		SONG_ALBUM},
    	{"daap.songartist",		SONG_ARTIST},
    	{"daap.songbitrate",		SONG_BITRATE},
    	{"daap.songbeatsperminute",	SONG_BPM},
    	{"daap.songcomment",		SONG_COMMENT},
    	{"daap.songcompilation",	SONG_COMPILATION},
    	{"daap.songcomposer",		SONG_COMPOSER},
    	{"daap.songdatakind",		SONG_DATA_KIND},
    	{"daap.songdataurl",		SONG_DATA_URL},
    	{"daap.songdateadded",		SONG_DATE_ADDED},
    	{"daap.songdatemodified",	SONG_DATE_MODIFIED},
    	{"daap.songdescription",	SONG_DESCRIPTION},
    	{"daap.songdisabled",		SONG_DISABLED},
    	{"daap.songdisccount",		SONG_DISC_COUNT},
    	{"daap.songdiscnumber",		SONG_DISC_NUMBER},
    	{"daap.songeqpreset",		SONG_EQ_PRESET},
    	{"daap.songformat",		SONG_FORMAT},
    	{"daap.songgenre",		SONG_GENRE},
    	{"daap.songgrouping",		SONG_GROUPING},
    	{"daap.songrelativevolume",	SONG_RELATIVE_VOLUME},
    	{"daap.songsamplerate",		SONG_SAMPLE_RATE},
    	{"daap.songsize",		SONG_SIZE},
    	{"daap.songstarttime",		SONG_START_TIME},
    	{"daap.songstoptime",		SONG_STOP_TIME},
   	{"daap.songtime",		SONG_TIME},
    	{"daap.songtrackcount",		SONG_TRACK_COUNT},
    	{"daap.songtracknumber",	SONG_TRACK_NUMBER},
    	{"daap.songuserrating",		SONG_USER_RATING},
    	{"daap.songyear",		SONG_YEAR},
	{"com.apple.itunes.has-video",	SONG_HAS_VIDEO}};

#define DAAP_ITEM_KIND_AUDIO 2
#define DAAP_SONG_DATA_KIND_NONE 0

static void
write_next_chunk (SoupMessage *message, ChunkData *cd)
{
	gssize read_size;
	GError *error = NULL;
	gchar *chunk = g_malloc (DMAP_SHARE_CHUNK_SIZE);

	read_size = g_input_stream_read (cd->stream,
					 chunk,
					 DMAP_SHARE_CHUNK_SIZE,
					 NULL,
					 &error);
	if (read_size > 0) {
		soup_message_body_append (message->response_body,
					  SOUP_MEMORY_TAKE,
					  chunk,
					  read_size);
	} else {
		if (error != NULL) {
			g_warning ("Error reading from input stream: %s",
				   error->message);
			g_error_free (error);
		}
		g_free (chunk);
		g_debug ("Wrote 0 bytes, sending message complete.");
		soup_message_body_complete (message->response_body);
	}
	soup_server_unpause_message (cd->server, message);
}

static void
chunked_message_finished (SoupMessage *message, ChunkData *cd)
{
	g_debug ("Finished sending chunked file.");
	g_input_stream_close (cd->stream, NULL, NULL);
	g_free (cd);
}

static void
send_chunked_file (SoupServer *server, SoupMessage *message, DAAPRecord *record, guint64 filesize, guint64 offset, gchar *transcode_mimetype)
{
	GInputStream *stream;
	gboolean has_video;
	const char *location;
	GError *error = NULL;
	ChunkData *cd = g_new (ChunkData, 1);

	g_object_get (record, "location", &location, NULL);

	/* FIXME: This crashes on powerpc-440fp-linux-gnu:
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	 * g_debug ("Sending %s chunked from offset %" G_GUINT64_FORMAT ".", location, offset);
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	 */

	cd->server = server;

	stream = G_INPUT_STREAM (daap_record_read (record, &error));

	if (error != NULL) {
		g_warning ("Couldn't open %s: %s.", location, error->message);
		g_error_free (error);
		soup_message_set_status (message, SOUP_STATUS_INTERNAL_SERVER_ERROR);
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		g_free (cd);
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		return;
	}

	if (transcode_format == NULL) {
		cd->stream = stream;
#ifdef HAVE_GSTREAMERAPP
	} else if (! strcmp ("mp3", transcode_format)) {
		cd->stream = G_INPUT_STREAM (g_gst_mp3_input_stream_new (stream));
	} else if (! strcmp ("wav", transcode_format)) {
		cd->stream = G_INPUT_STREAM (g_gst_wav_input_stream_new (stream));
#endif /* HAVE_GSTREAMERAPP */
	} else {
		g_warning ("Transcode format %s not supported", transcode_format);
		cd->stream = stream;
	}

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	if (cd->stream == NULL) {
		g_warning ("Could not set up input stream");
		g_free (cd);
		return;
	}

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	if (offset != 0) {
		if (g_seekable_seek (G_SEEKABLE (cd->stream), offset, G_SEEK_SET, NULL, &error) == FALSE) {
			g_warning ("Error seeking: %s.", error->message);
			g_input_stream_close (cd->stream, NULL, NULL);
			soup_message_set_status (message, SOUP_STATUS_INTERNAL_SERVER_ERROR);
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			g_free (cd);
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			return;
	 	}
		filesize -= offset;
	}

	/* Free memory after each chunk sent out over network. */
	soup_message_body_set_accumulate (message->response_body, FALSE);

	g_object_get (record, "has-video", &has_video, NULL);
	if (has_video
		/* NOTE: iTunes seems to require this or it stops reading 
		 * video data after about 2.5MB. Perhaps this is so iTunes
		 * knows how much data to buffer.
		 */
	    || transcode_format == NULL) {
	    	/* NOTE: iTunes 8 (and other versions?) will not seek
		 * properly without a Content-Length header.
		 */
		g_debug ("Using HTTP 1.1 content length encoding.");
		soup_message_headers_set_encoding (message->response_headers,
						  SOUP_ENCODING_CONTENT_LENGTH);
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		g_debug ("Content length is %" G_GUINT64_FORMAT ".", filesize);
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		soup_message_headers_set_content_length (
			message->response_headers, filesize);
	} else if (soup_message_get_http_version (message) == SOUP_HTTP_1_0) {
		/* NOTE: Roku clients support only HTTP 1.0. */
#ifdef HAVE_ENCODING_EOF
		g_debug ("Using HTTP 1.0 encoding.");
		soup_message_headers_set_encoding (message->response_headers,
						   SOUP_ENCODING_EOF);
#else
		g_warning ("Received HTTP 1.0 request, but not built with HTTP 1.0 support");
		soup_message_headers_set_encoding (message->response_headers,
						   SOUP_ENCODING_CHUNKED);
#endif
	} else {
		/* NOTE: Can not provide Content-Length when performing
		 * real-time transcoding.
		 */
		g_debug ("Using HTTP 1.1 chunked encoding.");
		soup_message_headers_set_encoding (message->response_headers,
						   SOUP_ENCODING_CHUNKED);
	}

	soup_message_headers_append (message->response_headers, "Connection", "Close");
	soup_message_headers_append (message->response_headers, "Content-Type", "application/x-daap-tagged");

	g_signal_connect (message, "wrote_headers", G_CALLBACK (write_next_chunk), cd);
	g_signal_connect (message, "wrote_chunk", G_CALLBACK (write_next_chunk), cd);
	g_signal_connect (message, "finished", G_CALLBACK (chunked_message_finished), cd);
561
	/* NOTE: cd g_free'd by chunked_message_finished(). */
562
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}

static void
add_entry_to_mlcl (gpointer id, DMAPRecord *record, gpointer _mb)
{
	GNode *mlit;
	struct MLCL_Bits *mb;

	mb = (struct MLCL_Bits *) _mb;
	mlit = dmap_structure_add (mb->mlcl, DMAP_CC_MLIT);

573
	if (_dmap_share_client_requested (mb->bits, ITEM_KIND))
574
		dmap_structure_add (mlit, DMAP_CC_MIKD, (gchar) DAAP_ITEM_KIND_AUDIO);
575
	if (_dmap_share_client_requested (mb->bits, ITEM_ID))
576
		dmap_structure_add (mlit, DMAP_CC_MIID, GPOINTER_TO_UINT (id));
577
	if (_dmap_share_client_requested (mb->bits, ITEM_NAME)) {
578
579
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581
		const gchar *title;
		g_object_get (record, "title", &title, NULL);
		dmap_structure_add (mlit, DMAP_CC_MINM, title);
	}
582
	if (_dmap_share_client_requested (mb->bits, PERSISTENT_ID))
583
		dmap_structure_add (mlit, DMAP_CC_MPER, GPOINTER_TO_UINT (id));
584
	if (_dmap_share_client_requested (mb->bits, CONTAINER_ITEM_ID))
585
		dmap_structure_add (mlit, DMAP_CC_MCTI, GPOINTER_TO_UINT (id));
586
	if (_dmap_share_client_requested (mb->bits, SONG_DATA_KIND))
587
588
		dmap_structure_add (mlit, DMAP_CC_ASDK, (gchar) DAAP_SONG_DATA_KIND_NONE);
	/* FIXME: Any use for this?
589
	if (_dmap_share_client_requested (mb->bits, SONG_DATA_URL))
590
591
		dmap_structure_add (mlit, DMAP_CC_ASUL, "daap://192.168.0.100:%u/databases/1/items/%d.%s?session-id=%s", data->port, *id, daap_record_get_format (DAAP_RECORD (record)), data->session_id);
	*/
592
	if (_dmap_share_client_requested (mb->bits, SONG_ALBUM)) {
593
594
595
596
		const gchar *album;
		g_object_get (record, "album", &album, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASAL, album);
	}
597
	if (_dmap_share_client_requested (mb->bits, SONG_GROUPING))
598
		dmap_structure_add (mlit, DMAP_CC_AGRP, "");
599
	if (_dmap_share_client_requested (mb->bits, SONG_ARTIST)) {
600
601
602
603
		const gchar *artist;
		g_object_get (record, "artist", &artist, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASAR, artist);
	}
604
	if (_dmap_share_client_requested (mb->bits, SONG_BITRATE)) {
605
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609
		gulong bitrate;
		g_object_get (record, "bitrate", &bitrate, NULL);
		if (bitrate != 0)
			dmap_structure_add (mlit, DMAP_CC_ASBR, (gint32) bitrate);
	}
610
	if (_dmap_share_client_requested (mb->bits, SONG_BPM))
611
		dmap_structure_add (mlit, DMAP_CC_ASBT, (gint32) 0);
612
	if (_dmap_share_client_requested (mb->bits, SONG_COMMENT))
613
		dmap_structure_add (mlit, DMAP_CC_ASCM, "");
614
	if (_dmap_share_client_requested (mb->bits, SONG_COMPILATION))
615
		dmap_structure_add (mlit, DMAP_CC_ASCO, (gchar) FALSE);
616
	if (_dmap_share_client_requested (mb->bits, SONG_COMPOSER))
617
		dmap_structure_add (mlit, DMAP_CC_ASCP, "");
618
	if (_dmap_share_client_requested (mb->bits, SONG_DATE_ADDED)) {
619
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		gint32 firstseen;
		g_object_get (record, "firstseen", &firstseen, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASDA, firstseen);
	}
623
	if (_dmap_share_client_requested (mb->bits, SONG_DATE_MODIFIED)) {
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627
		gint32 mtime;
		g_object_get (record, "mtime", &mtime, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASDM, mtime);
	}
628
	if (_dmap_share_client_requested (mb->bits, SONG_DISC_COUNT))
629
		dmap_structure_add (mlit, DMAP_CC_ASDC, (gint32) 0);
630
	if (_dmap_share_client_requested (mb->bits, SONG_DISC_NUMBER)) {
631
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633
634
		gint32 disc;
		g_object_get (record, "disc", &disc, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASDN, disc);
	}
635
	if (_dmap_share_client_requested (mb->bits, SONG_DISABLED))
636
		dmap_structure_add (mlit, DMAP_CC_ASDB, (gchar) FALSE);
637
	if (_dmap_share_client_requested (mb->bits, SONG_EQ_PRESET))
638
		dmap_structure_add (mlit, DMAP_CC_ASEQ, "");
639
	if (_dmap_share_client_requested (mb->bits, SONG_FORMAT)) {
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		gchar *format;
		if (transcode_format)
			format = transcode_format;
		else
			g_object_get (record, "format", &format, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASFM, format);
	}
647
	if (_dmap_share_client_requested (mb->bits, SONG_GENRE)) {
648
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		gchar *genre;
		g_object_get (record, "genre", &genre, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASGN, genre);
	}
652
	if (_dmap_share_client_requested (mb->bits, SONG_DESCRIPTION))
653
		dmap_structure_add (mlit, DMAP_CC_ASDT, ""); /* FIXME: e.g., wav audio file */
654
	if (_dmap_share_client_requested (mb->bits, SONG_RELATIVE_VOLUME))
655
		dmap_structure_add (mlit, DMAP_CC_ASRV, 0);
656
	if (_dmap_share_client_requested (mb->bits, SONG_SAMPLE_RATE))
657
		dmap_structure_add (mlit, DMAP_CC_ASSR, 0);
658
	if (_dmap_share_client_requested (mb->bits, SONG_SIZE)) {
659
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		guint64 filesize;
		g_object_get (record, "filesize", &filesize, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASSZ, (gint32) filesize);
	}
663
	if (_dmap_share_client_requested (mb->bits, SONG_START_TIME))
664
		dmap_structure_add (mlit, DMAP_CC_ASST, 0);
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	if (_dmap_share_client_requested (mb->bits, SONG_STOP_TIME))
666
		dmap_structure_add (mlit, DMAP_CC_ASSP, 0);
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	if (_dmap_share_client_requested (mb->bits, SONG_TIME)) {
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		gint32 duration;
		g_object_get (record, "duration", &duration, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASTM, (1000 * duration));
	}
672
	if (_dmap_share_client_requested (mb->bits, SONG_TRACK_COUNT))
673
		dmap_structure_add (mlit, DMAP_CC_ASTC, 0);
674
	if (_dmap_share_client_requested (mb->bits, SONG_TRACK_NUMBER)) {
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		gint32 track;
		g_object_get (record, "track", &track, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASTN, track);
	}
679
	if (_dmap_share_client_requested (mb->bits, SONG_USER_RATING)) {
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		gint32 rating;
		g_object_get (record, "rating", &rating, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASUR, rating);
	}
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	if (_dmap_share_client_requested (mb->bits, SONG_YEAR)) {
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		gint32 year;
		g_object_get (record, "year", &year, NULL);
		dmap_structure_add (mlit, DMAP_CC_ASYR, year);
	}
689
	if (_dmap_share_client_requested (mb->bits, SONG_HAS_VIDEO)) {
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		gboolean has_video;
		g_object_get (record, "has-video", &has_video, NULL);
		dmap_structure_add (mlit, DMAP_CC_AEHV, has_video);
	}

	return;
}

static void
genre_tabulator (gpointer id, DMAPRecord *record, GHashTable *ht)
{
	const gchar *genre;
	g_object_get (record, "genre", &genre, NULL);
	if (! g_hash_table_lookup (ht, genre))
		g_hash_table_insert (ht, (gchar *) genre, NULL);
}

static void
artist_tabulator (gpointer id, DMAPRecord *record, GHashTable *ht)
{
	const gchar *artist;
	g_object_get (record, "artist", &artist, NULL);
	if (! g_hash_table_lookup (ht, artist))
		g_hash_table_insert (ht, (gchar *) artist, NULL);
}

static void
album_tabulator (gpointer id, DMAPRecord *record, GHashTable *ht)
{
	const gchar *album;
	g_object_get (record, "album", &album, NULL);
	if (! g_hash_table_lookup (ht, album))
		g_hash_table_insert (ht, (gchar *) album, NULL);
}

static gchar *
get_album (DAAPRecord *record)
{
	gchar *album;
	g_object_get (record, "album", &album, NULL);
	return album;
}

static gchar *
get_genre (DAAPRecord *record)
{
	gchar *genre;
	g_object_get (record, "genre", &genre, NULL);
	return genre;
}

static gchar *
get_artist (DAAPRecord *record)
{
	gchar *artist;
	g_object_get (record, "artist", &artist, NULL);
	return artist;
}

/* FIXME: Handle ('...') and share code with DPAPShare. */
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'
         */

	GSList *list = NULL;

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

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

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

782
			t2 = _dmap_db_strsplit_using_quotes (t1[i]);
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			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 if (g_strcasecmp ("daap.songgenre", t3[0]) == 0) {
					def = g_new0 (FilterDefinition, 1);
					def->value = g_strdup (t3[1]);
					def->record_get_value = (RecordGetValueFunc) get_genre;
				} else if (g_strcasecmp ("daap.songartist", t3[0]) == 0) {
					def = g_new0 (FilterDefinition, 1);
					def->value = g_strdup (t3[1]);
					def->record_get_value = (RecordGetValueFunc) get_artist;
				} else if (g_strcasecmp ("daap.songalbum", t3[0]) == 0) {
					def = g_new0 (FilterDefinition, 1);
					def->value = g_strdup (t3[1]);
					def->record_get_value = (RecordGetValueFunc) get_album;
				} 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
add_to_category_listing (gpointer key, gpointer value, gpointer user_data)
{
	GNode *mlit;
	GNode *node = (GNode *) user_data;

	mlit = dmap_structure_add (node, DMAP_CC_MLIT);
	dmap_structure_add (mlit, DMAP_RAW, (char *) key);
}

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

void
daap_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);

870
	if (! _dmap_share_session_id_validate (share, context, message, query, NULL)) {
871
872
873
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875
876
877
878
879
880
881
882
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		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) DAAP_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 (DAAP_SHARE (share)->priv->db));
		dmap_structure_add (mlit, DMAP_CC_MCTC, (gint32) 1);

911
		_dmap_share_message_set_from_dmap_structure (share, message, avdb);
912
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936
		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;
		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);
937
			records = _dmap_db_apply_filter (DMAP_DB (DAAP_SHARE (share)->priv->db), filter_def);
938
939
940
941
942
943
944
			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 (DAAP_SHARE (share)->priv->db);
		}

945
		mb.bits = _dmap_share_parse_meta (query, meta_data_map, G_N_ELEMENTS (meta_data_map));
946
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		adbs = dmap_structure_add (NULL, DMAP_CC_ADBS);
		dmap_structure_add (adbs, DMAP_CC_MSTT, (gint32) DAAP_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) add_entry_to_mlcl, &mb);
			/* Free hash table but not data: */
			g_hash_table_destroy (records);
		} else {
959
			dmap_db_foreach (DAAP_SHARE (share)->priv->db, (GHFunc) add_entry_to_mlcl, &mb);
960
961
		}

962
		_dmap_share_message_set_from_dmap_structure (share, message, adbs);
963
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		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) DAAP_STATUS_OK);
		dmap_structure_add (aply, DMAP_CC_MUTY, 0);
		dmap_structure_add (aply, DMAP_CC_MTCO, (gint32) dmap_container_db_count (DAAP_SHARE (share)->priv->container_db) + 1);
		dmap_structure_add (aply, DMAP_CC_MRCO, (gint32) dmap_container_db_count (DAAP_SHARE (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 (DAAP_SHARE (share)->priv->db));
		dmap_structure_add (mlit, DMAP_CC_ABPL, (gchar) 1);

1003
		dmap_container_db_foreach (DAAP_SHARE (share)->priv->container_db, (GHFunc) _dmap_share_add_playlist_to_mlcl, (gpointer) mlcl);
1004

1005
		_dmap_share_message_set_from_dmap_structure (share, message, aply);
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
		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 MLCL_Bits mb = {NULL,0};
		gint pl_id = atoi (rest_of_path + 14);

1027
		mb.bits = _dmap_share_parse_meta (query, meta_data_map, G_N_ELEMENTS (meta_data_map));
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038

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

		if (pl_id == 1) {
			gint32 num_songs = dmap_db_count (DAAP_SHARE (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);

1039
			dmap_db_foreach (DAAP_SHARE (share)->priv->db, (GHFunc) add_entry_to_mlcl, &mb);
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
		} else {
			DMAPContainerRecord *record;
			const DMAPDb *entries;
			guint num_songs;
			
			record = dmap_container_db_lookup_by_id (DAAP_SHARE (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);

1053
			dmap_db_foreach (entries, (GHFunc) add_entry_to_mlcl, &mb);
1054
1055

			g_object_unref (record);
1056
1057
		}

1058
		_dmap_share_message_set_from_dmap_structure (share, message, apso);
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
		dmap_structure_destroy (apso);
	} else if (g_ascii_strncasecmp ("/1/browse/", rest_of_path, 9) == 0) {
	/* ABRO database browse
         *      MSTT status
         *      MUTY update type
         *      MTCO specified total count
         *      MRCO returned count
         *      ABGN genre listing
         *              MLIT listing item
         *              ...
         */
                GNode *abro, *node;
		gchar *filter;
		GSList *filter_def;
		GHashTable *filtered;
		guint num_genre;
		const gchar *browse_category;
		GHashTable *category_items;
		DMAPContentCode category_cc;

		browse_category = rest_of_path + 10;
		category_items = g_hash_table_new (g_str_hash, g_str_equal);

		filter = g_hash_table_lookup (query, "filter");
		filter_def = build_filter (filter);
1084
		filtered = _dmap_db_apply_filter (DMAP_DB (DAAP_SHARE (share)->priv->db), filter_def);
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

		if (g_ascii_strcasecmp (browse_category, "genres") == 0) {
			g_hash_table_foreach (filtered, (GHFunc) genre_tabulator, category_items);
			category_cc = DMAP_CC_ABGN;
		} else if (g_ascii_strcasecmp (browse_category, "artists") == 0) {
			g_hash_table_foreach (filtered, (GHFunc) artist_tabulator, category_items);
			category_cc = DMAP_CC_ABAR;
		} else if (g_ascii_strcasecmp (browse_category, "albums") == 0) {
			g_hash_table_foreach (filtered, (GHFunc) album_tabulator, category_items);
			category_cc = DMAP_CC_ABAL;
		} else {
			g_warning ("Unsupported browse category: %s",
				   browse_category);
			goto _bad_category;
		}

		abro = dmap_structure_add (NULL, DMAP_CC_ABRO);
		dmap_structure_add (abro, DMAP_CC_MSTT, (gint32) DAAP_STATUS_OK);
		dmap_structure_add (abro, DMAP_CC_MUTY, 0);

		num_genre = g_hash_table_size (category_items);
		dmap_structure_add (abro, DMAP_CC_MTCO, (gint32) num_genre);
		dmap_structure_add (abro, DMAP_CC_MRCO, (gint32) num_genre);

		node = dmap_structure_add (abro, category_cc);

		g_hash_table_foreach (category_items,
				      add_to_category_listing,
				      node);

1115
		_dmap_share_message_set_from_dmap_structure (share, message, abro);
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
                dmap_structure_destroy (abro);
	_bad_category:
		free_filter (filter_def);
		/* Free's hash table but not data (points into real DB): */
		g_hash_table_destroy (filtered);
		g_hash_table_destroy (category_items);

	} else if (g_ascii_strncasecmp ("/1/items/", rest_of_path, 9) == 0) {
	/* just the file :) */
		const gchar *id_str;
		gint id;
		const gchar *location;
		const gchar *range_header;
		guint64 filesize;
		guint64 offset = 0;
		DAAPRecord *record;

		id_str = rest_of_path + 9;
		id = atoi (id_str);

		record = DAAP_RECORD (dmap_db_lookup_by_id (DAAP_SHARE (share)->priv->db, id));
		g_object_get (record, "location", &location, NULL);
		g_object_get (record, "filesize", &filesize, NULL);

		daap_share_message_add_standard_headers (message);
		soup_message_headers_append (message->response_headers, "Accept-Ranges", "bytes");

		range_header = soup_message_headers_get (message->request_headers, "Range");
		if (range_header) {
			const gchar *s;
			gchar *content_range;

			s = range_header + 6; /* bytes= */
			offset = atoll (s);

			content_range = g_strdup_printf ("bytes %" G_GUINT64_FORMAT "-%" G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT, offset, filesize, filesize);
			soup_message_headers_append (message->response_headers, "Content-Range", content_range);
			g_debug ("Content range is %s.", content_range);
			g_free (content_range);
			soup_message_set_status (message, SOUP_STATUS_PARTIAL_CONTENT);
		} else {
			soup_message_set_status (message, SOUP_STATUS_OK);
		}
		send_chunked_file (server, message, record, filesize, offset, DAAP_SHARE (share)->priv->transcode_mimetype);
1160
1161
		
		g_object_unref (record);
1162
1163
1164
1165
	} else {
		g_warning ("Unhandled: %s\n", path);
	}
}