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/* the Music Player Daemon (MPD)
* (c)2007 by Warren Dukes (warren.dukes@gmail.com)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "locate.h"
#include "path.h"
#include "tag.h"
#include "song.h"
#include <glib.h>
#include <stdlib.h>
#define LOCATE_TAG_FILE_KEY "file"
#define LOCATE_TAG_FILE_KEY_OLD "filename"
#define LOCATE_TAG_ANY_KEY "any"
int
locate_parse_type(const char *str)
{
int i;
if (0 == strcasecmp(str, LOCATE_TAG_FILE_KEY) ||
0 == strcasecmp(str, LOCATE_TAG_FILE_KEY_OLD))
return LOCATE_TAG_FILE_TYPE;
if (0 == strcasecmp(str, LOCATE_TAG_ANY_KEY))
return LOCATE_TAG_ANY_TYPE;
for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++)
if (0 == strcasecmp(str, mpdTagItemKeys[i]))
return i;
return -1;
}
static bool
locate_item_init(struct locate_item *item,
const char *type_string, const char *needle)
{
item->tag = locate_parse_type(type_string);
if (item->tag < 0)
return false;
item->needle = g_strdup(needle);
return true;
}
struct locate_item *
locate_item_new(const char *type_string, const char *needle)
{
struct locate_item *ret = g_new(struct locate_item, 1);
if (!locate_item_init(ret, type_string, needle)) {
free(ret);
ret = NULL;
}
return ret;
}
void
locate_item_list_free(int count, struct locate_item *array)
{
int i;
for (i = 0; i < count; i++)
free(array[i].needle);
free(array);
}
int
locate_item_list_parse(char *argv[], int argc, struct locate_item **arrayRet)
{
int i, j;
struct locate_item *item;
if (argc == 0)
return 0;
if (argc % 2 != 0)
return -1;
*arrayRet = g_new(struct locate_item, argc / 2);
for (i = 0, item = *arrayRet; i < argc / 2; i++, item++) {
if (!locate_item_init(item, argv[i * 2], argv[i * 2 + 1]))
goto fail;
}
return argc / 2;
fail:
for (j = 0; j < i; j++) {
free((*arrayRet)[j].needle);
}
free(*arrayRet);
*arrayRet = NULL;
return -1;
}
void
locate_item_free(struct locate_item *item)
{
free(item->needle);
free(item);
}
static bool
locate_tag_search(const struct song *song, enum tag_type type, const char *str)
{
int i;
char *duplicate;
bool ret = false;
bool visited_types[TAG_NUM_OF_ITEM_TYPES];
if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
char *uri, *p;
uri = song_get_uri(song);
p = g_utf8_casefold(uri, -1);
g_free(uri);
if (strstr(p, str))
ret = true;
g_free(p);
if (ret == 1 || type == LOCATE_TAG_FILE_TYPE)
return ret;
}
if (!song->tag)
return false;
memset(visited_types, 0, sizeof(visited_types));
for (i = 0; i < song->tag->numOfItems && !ret; i++) {
visited_types[song->tag->items[i]->type] = true;
if (type != LOCATE_TAG_ANY_TYPE &&
song->tag->items[i]->type != type) {
continue;
}
duplicate = g_utf8_casefold(song->tag->items[i]->value, -1);
if (*str && strstr(duplicate, str))
ret = true;
g_free(duplicate);
}
/** If the search critieron was not visited during the sweep
* through the song's tag, it means this field is absent from
* the tag or empty. Thus, if the searched string is also
* empty (first char is a \0), then it's a match as well and
* we should return true.
*/
if (!*str && !visited_types[type])
return true;
return ret;
}
bool
locate_song_search(const struct song *song, int num_items,
const struct locate_item *items)
{
for (int i = 0; i < num_items; i++)
if (!locate_tag_search(song, items[i].tag, items[i].needle))
return false;
return true;
}
static bool
locate_tag_match(const struct song *song, enum tag_type type, const char *str)
{
int i;
bool visited_types[TAG_NUM_OF_ITEM_TYPES];
if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
char *uri = song_get_uri(song);
bool matches = strcmp(str, uri) == 0;
g_free(uri);
if (matches)
return true;
if (type == LOCATE_TAG_FILE_TYPE)
return false;
}
if (!song->tag)
return false;
memset(visited_types, 0, sizeof(visited_types));
for (i = 0; i < song->tag->numOfItems; i++) {
visited_types[song->tag->items[i]->type] = true;
if (type != LOCATE_TAG_ANY_TYPE &&
song->tag->items[i]->type != type) {
continue;
}
if (0 == strcmp(str, song->tag->items[i]->value))
return true;
}
/** If the search critieron was not visited during the sweep
* through the song's tag, it means this field is absent from
* the tag or empty. Thus, if the searched string is also
* empty (first char is a \0), then it's a match as well and
* we should return true.
*/
if (!*str && !visited_types[type])
return true;
return false;
}
bool
locate_song_match(const struct song *song, int num_items,
const struct locate_item *items)
{
for (int i = 0; i < num_items; i++)
if (!locate_tag_match(song, items[i].tag, items[i].needle))
return false;
return true;
}
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