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/*
Copyright (C) 2007 Jonathan Matthew
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA.
Author: Jonathan Matthew <jonathan@d14n.org>
*/
#include "config.h"
#ifndef TOTEM_PL_PARSER_MINI
#include <string.h>
#include <glib.h>
#include <glib/gi18n-lib.h>
#include <gtk/gtk.h>
#include "totem-pl-parser.h"
#include "totemplparser-marshal.h"
#endif /* !TOTEM_PL_PARSER_MINI */
#include "totem-pl-parser-mini.h"
#include "totem-pl-parser-pla.h"
#include "totem-pl-parser-private.h"
/* things we know */
#define PATH_OFFSET 2
#define FORMAT_ID_OFFSET 4
#define RECORD_SIZE 512
/* things we guessed */
#define TITLE_OFFSET 32
#define TITLE_SIZE 64
#ifndef TOTEM_PL_PARSER_MINI
gboolean
totem_pl_parser_write_pla (TotemPlParser *parser, GtkTreeModel *model,
TotemPlParserIterFunc func,
GFile *output, const char *title,
gpointer user_data, GError **error)
{
GFileOutputStream *stream;
int num_entries_total, i;
char *buffer;
gboolean ret;
num_entries_total = gtk_tree_model_iter_n_children (model, NULL);
stream = g_file_replace (output, NULL, FALSE, G_FILE_CREATE_NONE, NULL, error);
if (stream == NULL)
return FALSE;
/* write the header */
buffer = g_malloc0 (RECORD_SIZE);
*((gint32 *)buffer) = GINT32_TO_BE (num_entries_total);
strcpy (buffer + FORMAT_ID_OFFSET, "iriver UMS PLA");
/* the player doesn't display this, but it stores
* the 'quick list' name there.
*/
strncpy (buffer + TITLE_OFFSET, title, TITLE_SIZE);
if (totem_pl_parser_write_buffer (G_OUTPUT_STREAM (stream), buffer, RECORD_SIZE, error) == FALSE)
{
DEBUG(output, g_print ("Couldn't write header block for '%s'", uri));
g_free (buffer);
return FALSE;
}
ret = TRUE;
for (i = 1; i <= num_entries_total; i++) {
GtkTreeIter iter;
char *euri, *title, *path, *converted, *filename;
gsize written;
gboolean custom_title;
if (gtk_tree_model_iter_nth_child (model, &iter, NULL, i - 1) == FALSE)
continue;
func (model, &iter, &euri, &title, &custom_title, user_data);
g_free (title);
memset (buffer, 0, RECORD_SIZE);
/* convert to filename */
path = g_filename_from_uri (euri, NULL, error);
if (path == NULL)
{
DEBUG(NULL, g_print ("Couldn't convert URI '%s' to a filename: %s\n", euri, (*error)->message));
g_free (euri);
ret = FALSE;
break;
}
g_free (euri);
/* the first two bytes of the record give the offset of the first character in the
* filename. this is used to display just the filename when viewing the playlist
* on the device.
*/
filename = g_utf8_strrchr (path, -1, '/');
if (filename == NULL)
{
/* should never happen, but this would be the right value */
buffer[1] = 0x01;
} else {
/* we want the char after the slash, and it's one-based */
guint name_offset = (filename - path) + 2;
buffer[0] = (name_offset >> 8) & 0xff;
buffer[1] = name_offset & 0xff;
}
/* replace slashes */
g_strdelimit (path, "/", '\\');
/* convert to big-endian utf16 and write it into the buffer */
converted = g_convert (path, -1, "UTF-16BE", "UTF-8", NULL, &written, error);
if (converted == NULL)
{
DEBUG(NULL, g_print ("Couldn't convert filename '%s' to UTF-16BE\n", path));
g_free (path);
ret = FALSE;
break;
}
g_free (path);
if (written > RECORD_SIZE - PATH_OFFSET)
written = RECORD_SIZE - PATH_OFFSET;
memcpy (buffer + PATH_OFFSET, converted, written);
g_free (converted);
if (totem_pl_parser_write_buffer (G_OUTPUT_STREAM (stream), buffer, RECORD_SIZE, error) == FALSE)
{
DEBUG(NULL, g_print ("Couldn't write entry %d to the file\n", i));
ret = FALSE;
break;
}
}
g_free (buffer);
g_object_unref (stream);
return ret;
}
TotemPlParserResult
totem_pl_parser_add_pla (TotemPlParser *parser,
GFile *file,
GFile *base_file,
TotemPlParseData *parse_data,
gpointer data)
{
TotemPlParserResult retval = TOTEM_PL_PARSER_RESULT_UNHANDLED;
char *contents, *title;
guint offset, max_entries, entry;
gsize size;
if (g_file_load_contents (file, NULL, &contents, &size, NULL, NULL) == FALSE)
return TOTEM_PL_PARSER_RESULT_ERROR;
if (size < RECORD_SIZE)
{
g_free (contents);
DEBUG(file, g_print ("playlist '%s' is too short: %d\n", uri, (unsigned int) size));
return TOTEM_PL_PARSER_RESULT_ERROR;
}
/* read header block */
max_entries = GINT32_FROM_BE (*((gint32 *)contents));
if (strcmp (contents + FORMAT_ID_OFFSET, "iriver UMS PLA") != 0)
{
DEBUG(file, g_print ("playlist '%s' signature doesn't match: %s\n", uri, contents + 4));
g_free (contents);
return TOTEM_PL_PARSER_RESULT_ERROR;
}
/* read playlist title starting at offset 32 */
title = NULL;
if (contents[TITLE_OFFSET] != '\0')
{
title = contents + TITLE_OFFSET;
totem_pl_parser_add_uri (parser,
TOTEM_PL_PARSER_FIELD_IS_PLAYLIST, TRUE,
TOTEM_PL_PARSER_FIELD_FILE, file,
TOTEM_PL_PARSER_FIELD_TITLE, title,
NULL);
}
offset = RECORD_SIZE;
entry = 0;
while (offset + RECORD_SIZE <= size && entry < max_entries) {
char *path, *uri;
GError *error = NULL;
/* path starts at +2, is at most 500 bytes, in big-endian utf16 .. */
path = g_convert (contents + offset + PATH_OFFSET,
RECORD_SIZE - PATH_OFFSET,
"UTF-8", "UTF-16BE",
NULL, NULL, &error);
if (path == NULL)
{
DEBUG(NULL, g_print ("error converting entry %d to UTF-8: %s\n", entry, error->message));
g_error_free (error);
retval = TOTEM_PL_PARSER_RESULT_ERROR;
break;
}
/* .. with backslashes.. */
g_strdelimit (path, "\\", '/');
/* and that's all we get. */
uri = g_filename_to_uri (path, NULL, NULL);
if (uri == NULL)
{
DEBUG(file, g_print ("error converting path %s to URI: %s\n", path, error->message));
g_error_free (error);
retval = TOTEM_PL_PARSER_RESULT_ERROR;
break;
}
totem_pl_parser_add_uri (parser, TOTEM_PL_PARSER_FIELD_URI, uri, NULL);
g_free (uri);
g_free (path);
offset += RECORD_SIZE;
entry++;
}
if (title != NULL)
totem_pl_parser_playlist_end (parser, title);
g_free (contents);
return retval;
}
#endif /* !TOTEM_PL_PARSER_MINI */
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