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/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#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)
{
if (0 == g_ascii_strcasecmp(str, LOCATE_TAG_FILE_KEY) ||
0 == g_ascii_strcasecmp(str, LOCATE_TAG_FILE_KEY_OLD))
return LOCATE_TAG_FILE_TYPE;
if (0 == g_ascii_strcasecmp(str, LOCATE_TAG_ANY_KEY))
return LOCATE_TAG_ANY_TYPE;
enum tag_type i = tag_name_parse_i(str);
if (i != TAG_NUM_OF_ITEM_TYPES)
return i;
return -1;
}
static bool
locate_item_init(struct locate_item *item,
const char *type_string, const char *needle,
bool fold_case)
{
item->tag = locate_parse_type(type_string);
if (item->tag < 0)
return false;
item->needle = fold_case
? g_utf8_casefold(needle, -1)
: g_strdup(needle);
return true;
}
void
locate_item_list_free(struct locate_item_list *list)
{
for (unsigned i = 0; i < list->length; ++i)
g_free(list->items[i].needle);
g_free(list);
}
struct locate_item_list *
locate_item_list_new(unsigned length)
{
struct locate_item_list *list =
g_malloc0(sizeof(*list) - sizeof(list->items[0]) +
length * sizeof(list->items[0]));
list->length = length;
return list;
}
struct locate_item_list *
locate_item_list_parse(char *argv[], int argc, bool fold_case)
{
if (argc % 2 != 0)
return NULL;
struct locate_item_list *list = locate_item_list_new(argc / 2);
for (unsigned i = 0; i < list->length; ++i) {
if (!locate_item_init(&list->items[i], argv[i * 2],
argv[i * 2 + 1], fold_case)) {
locate_item_list_free(list);
return NULL;
}
}
return list;
}
gcc_pure
static bool
locate_tag_search(const struct song *song, enum tag_type type, const char *str)
{
bool ret = false;
if (type == LOCATE_TAG_FILE_TYPE || type == LOCATE_TAG_ANY_TYPE) {
char *uri = song_get_uri(song);
char *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;
bool visited_types[TAG_NUM_OF_ITEM_TYPES];
memset(visited_types, 0, sizeof(visited_types));
for (unsigned i = 0; i < song->tag->num_items && !ret; i++) {
visited_types[song->tag->items[i]->type] = true;
if (type != LOCATE_TAG_ANY_TYPE &&
song->tag->items[i]->type != type) {
continue;
}
char *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,
const struct locate_item_list *criteria)
{
for (unsigned i = 0; i < criteria->length; i++)
if (!locate_tag_search(song, criteria->items[i].tag,
criteria->items[i].needle))
return false;
return true;
}
gcc_pure
static bool
locate_tag_match(const struct song *song, enum tag_type type, const char *str)
{
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;
bool visited_types[TAG_NUM_OF_ITEM_TYPES];
memset(visited_types, 0, sizeof(visited_types));
for (unsigned i = 0; i < song->tag->num_items; 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,
const struct locate_item_list *criteria)
{
for (unsigned i = 0; i < criteria->length; i++)
if (!locate_tag_match(song, criteria->items[i].tag,
criteria->items[i].needle))
return false;
return true;
}
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