paulo@0: /*
paulo@0:  * $Id: gt_share_file.c,v 1.17 2003/07/23 18:43:32 hipnod Exp $
paulo@0:  *
paulo@0:  * Copyright (C) 2001-2003 giFT project (gift.sourceforge.net)
paulo@0:  *
paulo@0:  * This program is free software; you can redistribute it and/or modify it
paulo@0:  * under the terms of the GNU General Public License as published by the
paulo@0:  * Free Software Foundation; either version 2, or (at your option) any
paulo@0:  * later version.
paulo@0:  *
paulo@0:  * This program is distributed in the hope that it will be useful, but
paulo@0:  * WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
paulo@0:  * General Public License for more details.
paulo@0:  */
paulo@0: 
paulo@0: #include "gt_gnutella.h"
paulo@0: 
paulo@0: #include "sha1.h"
paulo@0: #if 0
paulo@0: #include "src/mime.h"
paulo@0: #endif
paulo@0: 
paulo@0: #include "gt_share_file.h"
paulo@0: #include "gt_query_route.h"
paulo@0: 
paulo@0: #include "gt_search.h"
paulo@0: #include "gt_search_exec.h"
paulo@0: 
paulo@0: /******************************************************************************/
paulo@0: 
paulo@0: unsigned int gt_share_unref (Share *file)
paulo@0: {
paulo@0: 	GtShare *share;
paulo@0: 
paulo@0: 	if ((share = share_get_udata (file, GT->name)))
paulo@0: 	{
paulo@0: 		if (file->ref <= 1)
paulo@0: 		{
paulo@0: 			gt_share_free_data (file, share);
paulo@0: 			share_set_udata (file, GT->name, NULL);
paulo@0: 		}
paulo@0: 	}
paulo@0: 
paulo@0: 	return share_unref (file);
paulo@0: }
paulo@0: 
paulo@0: unsigned int gt_share_ref (Share *file)
paulo@0: {
paulo@0: 	return share_ref (file);
paulo@0: }
paulo@0: 
paulo@0: /******************************************************************************/
paulo@0: 
paulo@0: /* this is duplicated with tokenize in gt_query_route.c for the time being */
paulo@0: GtTokenSet *gt_share_tokenize (char *hpath)
paulo@0: {
paulo@0: 	GtTokenSet *token_set;
paulo@0: 	char       *str;
paulo@0: 	char       *str0;
paulo@0: 	char       *next;
paulo@0: 
paulo@0: 	if (!(str0 = str = STRDUP (hpath)))
paulo@0: 		return NULL;
paulo@0: 
paulo@0: 	if (!(token_set = gt_token_set_new ()))
paulo@0: 	{
paulo@0: 		free (str0);
paulo@0: 		return NULL;
paulo@0: 	}
paulo@0: 
paulo@0: 	while ((next = string_sep_set (&str, QRP_DELIMITERS)) != NULL)
paulo@0: 	{
paulo@0: 		uint32_t tok;
paulo@0: 
paulo@0: 		if (string_isempty (next))
paulo@0: 			continue;
paulo@0: 
paulo@0: 		tok = gt_query_router_hash_str (next, 32);
paulo@0: 		gt_token_set_append (token_set, tok);
paulo@0: 	}
paulo@0: 
paulo@0: 	free (str0);
paulo@0: 	return token_set;
paulo@0: }
paulo@0: 
paulo@0: /******************************************************************************/
paulo@0: 
paulo@0: GtShare *gt_share_new_data (Share *file, uint32_t index)
paulo@0: {
paulo@0: 	GtShare  *share;
paulo@0: 	char     *basename;
paulo@0: 
paulo@0: 	if (!file)
paulo@0: 		return NULL;
paulo@0: 
paulo@0: 	if (!(share = malloc (sizeof (GtShare))))
paulo@0: 		return NULL;
paulo@0: 
paulo@0: 	assert (SHARE_DATA(file) != NULL);
paulo@0: 
paulo@0: 	if (!(basename = file_basename (SHARE_DATA(file)->path)))
paulo@0: 	{
paulo@0: 		GT->DBGFN (GT, "bad basename for %s", SHARE_DATA(file)->path);
paulo@0: 		free (share);
paulo@0: 		return NULL;
paulo@0: 	}
paulo@0: 
paulo@0: 	share->index    = index;
paulo@0: 	share->filename = basename;            /* share mem with Share */
paulo@0: 	share->tokens   = gt_share_tokenize (share_get_hpath (file));
paulo@0: 
paulo@0: 	return share;
paulo@0: }
paulo@0: 
paulo@0: void gt_share_free_data (Share *file, GtShare *share)
paulo@0: {
paulo@0: 	if (!file)
paulo@0: 	{
paulo@0: 		assert (share != NULL);
paulo@0: 		return;
paulo@0: 	}
paulo@0: 
paulo@0: 	if (!share)
paulo@0: 		return;
paulo@0: 
paulo@0: 	gt_token_set_free (share->tokens);
paulo@0: 
paulo@0: 	/* don't free share->filename */
paulo@0: 
paulo@0: 	free (share);
paulo@0: }
paulo@0: 
paulo@0: Share *gt_share_new (char *filename, uint32_t index, off_t size,
paulo@0:                      unsigned char *sha1)
paulo@0: {
paulo@0: 	Share *file;
paulo@0: 	GtShare   *share;
paulo@0: #if 0
paulo@0: 	char      *mime;
paulo@0: 
paulo@0: 	/* choose mime type based on extension */
paulo@0: 	mime = mime_type (filename);
paulo@0: #endif
paulo@0: 
paulo@0: 	/* TODO: parse path out of filename. Nodes don't put paths in the
paulo@0: 	 *       search result string yet but may in the future */
paulo@0: 	if (!(file = share_new (filename)))
paulo@0: 		return NULL;
paulo@0: 
paulo@0: #if 0
paulo@0: 	share_set_mime (file, mime);
paulo@0: #endif
paulo@0: 
paulo@0: 	file->size = size;
paulo@0: 
paulo@0: 	/* 
paulo@0: 	 * Set the hash if it was passed in, but also accept a null hash
paulo@0: 	 * TODO: need a generic urn: type to stop hardcoding sha1 
paulo@0: 	 */
paulo@0: 	if (sha1 && !share_set_hash (file, "SHA1", sha1, SHA1_BINSIZE, TRUE))
paulo@0: 	{
paulo@0: 		gt_share_unref (file);
paulo@0: 		return NULL;
paulo@0: 	}
paulo@0: 
paulo@0: 	if (!(share = gt_share_new_data (file, index)))
paulo@0: 	{
paulo@0: 		gt_share_unref (file);
paulo@0: 		return NULL;
paulo@0: 	}
paulo@0: 
paulo@0: 	share_set_udata (file, GT->name, share);
paulo@0: 
paulo@0: 	return file;
paulo@0: }
paulo@0: 
paulo@0: void gt_share_free (Share *file)
paulo@0: {
paulo@0: 	gt_share_free_data (file, share_get_udata (file, GT->name));
paulo@0: 	share_set_udata (file, GT->name, NULL);
paulo@0: 
paulo@0: 	share_free (file);
paulo@0: }