From d65ad1bf151383722802d4bb13b12a33b97480e4 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 2 Jan 2013 22:43:56 +0100 Subject: mapper: convert to C++ --- src/mapper.c | 294 ----------------------------------------------------------- 1 file changed, 294 deletions(-) delete mode 100644 src/mapper.c (limited to 'src/mapper.c') diff --git a/src/mapper.c b/src/mapper.c deleted file mode 100644 index 1f8a54b46..000000000 --- a/src/mapper.c +++ /dev/null @@ -1,294 +0,0 @@ -/* - * 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. - */ - -/* - * Maps directory and song objects to file system paths. - */ - -#include "config.h" -#include "mapper.h" -#include "directory.h" -#include "song.h" -#include "path.h" - -#include - -#include -#include -#include -#include -#include -#include - -/** - * The absolute path of the music directory encoded in UTF-8. - */ -static char *music_dir_utf8; -static size_t music_dir_utf8_length; - -/** - * The absolute path of the music directory encoded in the filesystem - * character set. - */ -static char *music_dir_fs; -static size_t music_dir_fs_length; - -/** - * The absolute path of the playlist directory encoded in the - * filesystem character set. - */ -static char *playlist_dir_fs; - -/** - * Duplicate a string, chop all trailing slashes. - */ -static char * -strdup_chop_slash(const char *path_fs) -{ - size_t length = strlen(path_fs); - - while (length > 0 && path_fs[length - 1] == G_DIR_SEPARATOR) - --length; - - return g_strndup(path_fs, length); -} - -static void -check_directory(const char *path) -{ - struct stat st; - if (stat(path, &st) < 0) { - g_warning("Failed to stat directory \"%s\": %s", - path, g_strerror(errno)); - return; - } - - if (!S_ISDIR(st.st_mode)) { - g_warning("Not a directory: %s", path); - return; - } - -#ifndef WIN32 - char *x = g_build_filename(path, ".", NULL); - if (stat(x, &st) < 0 && errno == EACCES) - g_warning("No permission to traverse (\"execute\") directory: %s", - path); - g_free(x); -#endif - - DIR *dir = opendir(path); - if (dir != NULL) - closedir(dir); - else if (errno == EACCES) - g_warning("No permission to read directory: %s", path); -} - -static void -mapper_set_music_dir(const char *path_utf8) -{ - music_dir_utf8 = strdup_chop_slash(path_utf8); - music_dir_utf8_length = strlen(music_dir_utf8); - - music_dir_fs = utf8_to_fs_charset(music_dir_utf8); - check_directory(music_dir_fs); - music_dir_fs_length = strlen(music_dir_fs); -} - -static void -mapper_set_playlist_dir(const char *path_utf8) -{ - playlist_dir_fs = utf8_to_fs_charset(path_utf8); - check_directory(playlist_dir_fs); -} - -void mapper_init(const char *_music_dir, const char *_playlist_dir) -{ - if (_music_dir != NULL) - mapper_set_music_dir(_music_dir); - - if (_playlist_dir != NULL) - mapper_set_playlist_dir(_playlist_dir); -} - -void mapper_finish(void) -{ - g_free(music_dir_utf8); - g_free(music_dir_fs); - g_free(playlist_dir_fs); -} - -const char * -mapper_get_music_directory_utf8(void) -{ - return music_dir_utf8; -} - -const char * -mapper_get_music_directory_fs(void) -{ - return music_dir_fs; -} - -const char * -map_to_relative_path(const char *path_utf8) -{ - return music_dir_utf8 != NULL && - memcmp(path_utf8, music_dir_utf8, - music_dir_utf8_length) == 0 && - G_IS_DIR_SEPARATOR(path_utf8[music_dir_utf8_length]) - ? path_utf8 + music_dir_utf8_length + 1 - : path_utf8; -} - -char * -map_uri_fs(const char *uri) -{ - char *uri_fs, *path_fs; - - assert(uri != NULL); - assert(*uri != '/'); - - if (music_dir_fs == NULL) - return NULL; - - uri_fs = utf8_to_fs_charset(uri); - if (uri_fs == NULL) - return NULL; - - path_fs = g_build_filename(music_dir_fs, uri_fs, NULL); - g_free(uri_fs); - - return path_fs; -} - -char * -map_directory_fs(const struct directory *directory) -{ - assert(music_dir_utf8 != NULL); - assert(music_dir_fs != NULL); - - if (directory_is_root(directory)) - return g_strdup(music_dir_fs); - - return map_uri_fs(directory_get_path(directory)); -} - -char * -map_directory_child_fs(const struct directory *directory, const char *name) -{ - assert(music_dir_utf8 != NULL); - assert(music_dir_fs != NULL); - - char *name_fs, *parent_fs, *path; - - /* check for invalid or unauthorized base names */ - if (*name == 0 || strchr(name, '/') != NULL || - strcmp(name, ".") == 0 || strcmp(name, "..") == 0) - return NULL; - - parent_fs = map_directory_fs(directory); - if (parent_fs == NULL) - return NULL; - - name_fs = utf8_to_fs_charset(name); - if (name_fs == NULL) { - g_free(parent_fs); - return NULL; - } - - path = g_build_filename(parent_fs, name_fs, NULL); - g_free(parent_fs); - g_free(name_fs); - - return path; -} - -/** - * Map a song object that was created by song_dup_detached(). It does - * not have a real parent directory, only the dummy object - * #detached_root. - */ -static char * -map_detached_song_fs(const char *uri_utf8) -{ - char *uri_fs = utf8_to_fs_charset(uri_utf8); - if (uri_fs == NULL) - return NULL; - - char *path = g_build_filename(music_dir_fs, uri_fs, NULL); - g_free(uri_fs); - return path; -} - -char * -map_song_fs(const struct song *song) -{ - assert(song_is_file(song)); - - if (song_in_database(song)) - return song_is_detached(song) - ? map_detached_song_fs(song->uri) - : map_directory_child_fs(song->parent, song->uri); - else - return utf8_to_fs_charset(song->uri); -} - -char * -map_fs_to_utf8(const char *path_fs) -{ - if (music_dir_fs != NULL && - strncmp(path_fs, music_dir_fs, music_dir_fs_length) == 0 && - G_IS_DIR_SEPARATOR(path_fs[music_dir_fs_length])) - /* remove musicDir prefix */ - path_fs += music_dir_fs_length + 1; - else if (G_IS_DIR_SEPARATOR(path_fs[0])) - /* not within musicDir */ - return NULL; - - while (path_fs[0] == G_DIR_SEPARATOR) - ++path_fs; - - return fs_charset_to_utf8(path_fs); -} - -const char * -map_spl_path(void) -{ - return playlist_dir_fs; -} - -char * -map_spl_utf8_to_fs(const char *name) -{ - char *filename_utf8, *filename_fs, *path; - - if (playlist_dir_fs == NULL) - return NULL; - - filename_utf8 = g_strconcat(name, PLAYLIST_FILE_SUFFIX, NULL); - filename_fs = utf8_to_fs_charset(filename_utf8); - g_free(filename_utf8); - if (filename_fs == NULL) - return NULL; - - path = g_build_filename(playlist_dir_fs, filename_fs, NULL); - g_free(filename_fs); - - return path; -} -- cgit v1.2.3