f8597ccf25
git-svn-id: https://svn.musicpd.org/mpd/trunk@3689 09075e82-0dd4-0310-85a5-a0d7c8717e4f
1305 lines
32 KiB
C
1305 lines
32 KiB
C
/* the Music Player Daemon (MPD)
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* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "directory.h"
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#include "ls.h"
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#include "command.h"
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#include "utils.h"
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#include "path.h"
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#include "log.h"
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#include "conf.h"
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#include "stats.h"
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#include "playlist.h"
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#include "listen.h"
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#include "interface.h"
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#include "volume.h"
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#include "mpd_types.h"
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#include "sig_handlers.h"
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#include "player.h"
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#include "list.h"
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#include "dbUtils.h"
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#include <string.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#include <signal.h>
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#include <assert.h>
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#define DIRECTORY_DIR "directory: "
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#define DIRECTORY_MTIME "mtime: "
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#define DIRECTORY_BEGIN "begin: "
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#define DIRECTORY_END "end: "
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#define DIRECTORY_INFO_BEGIN "info_begin"
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#define DIRECTORY_INFO_END "info_end"
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#define DIRECTORY_MPD_VERSION "mpd_version: "
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#define DIRECTORY_FS_CHARSET "fs_charset: "
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#define DIRECTORY_UPDATE_EXIT_NOUPDATE 0
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#define DIRECTORY_UPDATE_EXIT_UPDATE 1
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#define DIRECTORY_UPDATE_EXIT_ERROR 2
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#define DIRECTORY_RETURN_NOUPDATE 0
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#define DIRECTORY_RETURN_UPDATE 1
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#define DIRECTORY_RETURN_ERROR -1
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Directory * mp3rootDirectory = NULL;
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time_t directory_dbModTime = 0;
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volatile int directory_updatePid = 0;
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volatile int directory_reReadDB = 0;
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volatile mpd_uint16 directory_updateJobId = 0;
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DirectoryList * newDirectoryList();
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int addToDirectory(Directory * directory, char * shortname, char * name);
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void freeDirectoryList(DirectoryList * list);
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void freeDirectory(Directory * directory);
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int exploreDirectory(Directory * directory);
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int updateDirectory(Directory * directory);
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void deleteEmptyDirectoriesInDirectory(Directory * directory);
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void removeSongFromDirectory(Directory * directory, char * shortname);
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int addSubDirectoryToDirectory(Directory * directory, char * shortname,
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char * name, struct stat * st);
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Directory * getDirectoryDetails(char * name, char ** shortname);
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Directory * getDirectory(char * name);
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Song * getSongDetails(char * file, char ** shortnameRet,
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Directory ** directoryRet);
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int updatePath(char * utf8path);
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void sortDirectory(Directory * directory);
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int inodeFoundInParent(Directory * parent, ino_t inode, dev_t device);
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int statDirectory(Directory * dir);
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static char * getDbFile() {
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ConfigParam * param = parseConfigFilePath(CONF_DB_FILE, 1);
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assert(param);
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assert(param->value);
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return param->value;
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}
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void clearUpdatePid() {
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directory_updatePid = 0;
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}
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int isUpdatingDB() {
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if(directory_updatePid>0 || directory_reReadDB) {
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return directory_updateJobId;
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}
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return 0;
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}
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void directory_sigChldHandler(int pid, int status) {
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if(directory_updatePid==pid) {
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if(WIFSIGNALED(status) && WTERMSIG(status)!=SIGTERM) {
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ERROR("update process died from a "
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"non-TERM signal: %i\n",
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WTERMSIG(status));
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}
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else if(!WIFSIGNALED(status)) {
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switch(WEXITSTATUS(status))
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{
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case DIRECTORY_UPDATE_EXIT_UPDATE:
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directory_reReadDB = 1;
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DEBUG("directory_sigChldHandler: "
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"updated db\n");
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case DIRECTORY_UPDATE_EXIT_NOUPDATE:
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DEBUG("directory_sigChldHandler: "
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"update exited succesffully\n");
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break;
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default:
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ERROR("error updating db\n");
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}
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}
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clearUpdatePid();
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}
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}
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void readDirectoryDBIfUpdateIsFinished() {
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if(directory_reReadDB && 0==directory_updatePid) {
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DEBUG("readDirectoryDB since update finished successfully\n");
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readDirectoryDB();
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playlistVersionChange();
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directory_reReadDB = 0;
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}
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}
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int updateInit(FILE * fp, List * pathList) {
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if(directory_updatePid > 0) {
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commandError(fp, ACK_ERROR_UPDATE_ALREADY, "already updating",
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NULL);
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return -1;
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}
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/* need to block CHLD signal, cause it can exit before we
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even get a chance to assign directory_updatePID */
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blockSignals();
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directory_updatePid = fork();
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if(directory_updatePid==0) {
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/* child */
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int dbUpdated = 0;
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/* clearPlayerPid(); */
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unblockSignals();
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finishSigHandlers();
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closeAllListenSockets();
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freeAllInterfaces();
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finishPlaylist();
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finishVolume();
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if(pathList) {
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ListNode * node = pathList->firstNode;
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while(node) {
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switch(updatePath(node->key)) {
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case 1:
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dbUpdated = 1;
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break;
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case 0:
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break;
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default:
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exit(DIRECTORY_UPDATE_EXIT_ERROR);
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}
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node = node->nextNode;
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}
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}
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else {
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if((dbUpdated = updateDirectory(mp3rootDirectory))<0) {
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exit(DIRECTORY_UPDATE_EXIT_ERROR);
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}
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}
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if(!dbUpdated) exit(DIRECTORY_UPDATE_EXIT_NOUPDATE);
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/* ignore signals since we don't want them to corrupt the db*/
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ignoreSignals();
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if(writeDirectoryDB()<0) {
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exit(DIRECTORY_UPDATE_EXIT_ERROR);
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}
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exit(DIRECTORY_UPDATE_EXIT_UPDATE);
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}
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else if(directory_updatePid < 0) {
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unblockSignals();
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ERROR("updateInit: Problems forking()'ing\n");
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commandError(fp, ACK_ERROR_SYSTEM,
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"problems trying to update", NULL);
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directory_updatePid = 0;
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return -1;
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}
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unblockSignals();
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directory_updateJobId++;
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if(directory_updateJobId > 1<<15) directory_updateJobId = 1;
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DEBUG("updateInit: fork()'d update child for update job id %i\n",
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(int)directory_updateJobId);
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myfprintf(fp,"updating_db: %i\n",(int)directory_updateJobId);
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return 0;
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}
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DirectoryStat * newDirectoryStat(struct stat * st) {
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DirectoryStat * ret = malloc(sizeof(DirectoryStat));
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ret->inode = st->st_ino;
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ret->device = st->st_dev;
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return ret;
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}
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void freeDirectoryStatFromDirectory(Directory * dir) {
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if(dir->stat) free(dir->stat);
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dir->stat = NULL;
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}
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Directory * newDirectory(char * dirname, Directory * parent) {
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Directory * directory;
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directory = malloc(sizeof(Directory));
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if(dirname && strlen(dirname)) directory->path = strdup(dirname);
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else directory->path = NULL;
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directory->subDirectories = newDirectoryList();
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directory->songs = newSongList();
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directory->stat = NULL;
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directory->parent = parent;
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return directory;
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}
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void freeDirectory(Directory * directory) {
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freeDirectoryList(directory->subDirectories);
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freeSongList(directory->songs);
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if(directory->path) free(directory->path);
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freeDirectoryStatFromDirectory(directory);
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free(directory);
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/* this resets last dir returned */
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/*getDirectoryPath(NULL);*/
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}
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DirectoryList * newDirectoryList() {
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return makeList((ListFreeDataFunc *)freeDirectory, 1);
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}
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void freeDirectoryList(DirectoryList * directoryList) {
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freeList(directoryList);
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}
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void removeSongFromDirectory(Directory * directory, char * shortname) {
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void * song;
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if(findInList(directory->songs,shortname,&song)) {
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LOG("removing: %s\n", getSongUrl((Song *)song));
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deleteFromList(directory->songs, shortname);
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}
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}
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void deleteEmptyDirectoriesInDirectory(Directory * directory) {
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ListNode * node = directory->subDirectories->firstNode;
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ListNode * nextNode;
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Directory * subDir;
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while(node) {
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subDir = (Directory *)node->data;
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deleteEmptyDirectoriesInDirectory(subDir);
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nextNode = node->nextNode;
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if(subDir->subDirectories->numberOfNodes==0 &&
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subDir->songs->numberOfNodes==0)
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{
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deleteNodeFromList(directory->subDirectories,node);
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}
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node = nextNode;
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}
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}
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/* return values:
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-1 -> error
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0 -> no error, but nothing updated
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1 -> no error, and stuff updated
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*/
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int updateInDirectory(Directory * directory, char * shortname, char * name) {
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void * song;
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void * subDir;
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struct stat st;
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if(myStat(name, &st)) return -1;
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if(S_ISREG(st.st_mode) && hasMusicSuffix(name)) {
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if(0==findInList(directory->songs,shortname,&song)) {
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addToDirectory(directory, shortname, name);
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return DIRECTORY_RETURN_UPDATE;
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}
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else if(st.st_mtime!=((Song *)song)->mtime) {
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LOG("updating %s\n",name);
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if(updateSongInfo((Song *)song)<0) {
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removeSongFromDirectory(directory,shortname);
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}
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return 1;
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}
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}
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else if(S_ISDIR(st.st_mode)) {
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if(findInList(directory->subDirectories,shortname,(void **)&subDir)) {
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freeDirectoryStatFromDirectory(subDir);
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((Directory *)subDir)->stat = newDirectoryStat(&st);
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return updateDirectory((Directory *)subDir);
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}
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else {
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return addSubDirectoryToDirectory(directory,shortname,
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name, &st);
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}
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}
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return 0;
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}
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/* return values:
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-1 -> error
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0 -> no error, but nothing removed
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1 -> no error, and stuff removed
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*/
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int removeDeletedFromDirectory(Directory * directory, DIR * dir) {
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char cwd[2];
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struct dirent * ent;
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char * dirname = getDirectoryPath(directory);
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List * entList = makeList(free, 1);
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void * name;
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char * s;
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char * utf8;
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ListNode * node;
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ListNode * tmpNode;
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int ret = 0;
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cwd[0] = '.';
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cwd[1] = '\0';
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if(dirname==NULL) dirname=cwd;
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while((ent = readdir(dir))) {
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if(ent->d_name[0]=='.') continue; /* hide hidden stuff */
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if(strchr(ent->d_name, '\n')) continue;
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utf8 = fsCharsetToUtf8(ent->d_name);
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if(!utf8) continue;
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if(directory->path) {
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s = malloc(strlen(getDirectoryPath(directory))
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+strlen(utf8)+2);
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sprintf(s,"%s/%s", getDirectoryPath(directory), utf8);
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}
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else s= strdup(utf8);
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insertInList(entList, utf8, s);
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}
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node = directory->subDirectories->firstNode;
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while(node) {
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tmpNode = node->nextNode;
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if(findInList(entList,node->key,&name)) {
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if(!isDir((char *)name)) {
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LOG("removing directory: %s\n",(char*)name);
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deleteFromList(directory->subDirectories,
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node->key);
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ret = 1;
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}
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}
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else {
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LOG("removing directory: ");
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LOG("%s/",getDirectoryPath(directory));
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LOG("%s\n",node->key);
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deleteFromList(directory->subDirectories, node->key);
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ret = 1;
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}
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node = tmpNode;
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}
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node = directory->songs->firstNode;
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while(node) {
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tmpNode = node->nextNode;
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if(findInList(entList,node->key,(void **)&name)) {
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if(!isMusic(name,NULL)) {
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removeSongFromDirectory(directory,node->key);
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ret = 1;
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}
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}
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else {
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removeSongFromDirectory(directory,node->key);
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ret = 1;
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}
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node = tmpNode;
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}
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freeList(entList);
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return ret;
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}
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Directory * addDirectoryPathToDB(char * utf8path, char ** shortname) {
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char * parent;
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Directory * parentDirectory;
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void * directory;
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parent = strdup(parentPath(utf8path));
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if(strlen(parent)==0) parentDirectory = (void *)mp3rootDirectory;
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else parentDirectory = addDirectoryPathToDB(parent,shortname);
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if(!parentDirectory) {
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free(parent);
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return NULL;
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}
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*shortname = utf8path+strlen(parent);
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while(*(*shortname) && *(*shortname)=='/') (*shortname)++;
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if(!findInList(parentDirectory->subDirectories,*shortname, &directory))
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{
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struct stat st;
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if(myStat(utf8path, &st) < 0 ||
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inodeFoundInParent(parentDirectory,
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st.st_ino, st.st_dev))
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{
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free(parent);
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return NULL;
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}
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else {
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directory = newDirectory(utf8path, parentDirectory);
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insertInList(parentDirectory->subDirectories,
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*shortname,
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directory);
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}
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}
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/* if we're adding directory paths, make sure to delete filenames
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with potentially the same name*/
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removeSongFromDirectory(parentDirectory,*shortname);
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free(parent);
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return (Directory *)directory;
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}
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Directory * addParentPathToDB(char * utf8path, char ** shortname) {
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char * parent;
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Directory * parentDirectory;
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parent = strdup(parentPath(utf8path));
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if(strlen(parent)==0) parentDirectory = (void *)mp3rootDirectory;
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else parentDirectory = addDirectoryPathToDB(parent,shortname);
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if(!parentDirectory) {
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free(parent);
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return NULL;
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}
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*shortname = utf8path+strlen(parent);
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while(*(*shortname) && *(*shortname)=='/') (*shortname)++;
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free(parent);
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return (Directory *)parentDirectory;
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}
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/* return values:
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-1 -> error
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0 -> no error, but nothing updated
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1 -> no error, and stuff updated
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*/
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int updatePath(char * utf8path) {
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Directory * directory;
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Directory * parentDirectory;
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Song * song;
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char * shortname;
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char * path = sanitizePathDup(utf8path);
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time_t mtime;
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int ret = 0;
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if(NULL==path) return -1;
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/* if path is in the DB try to update it, or else delete it */
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if((directory = getDirectoryDetails(path,&shortname))) {
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parentDirectory = directory->parent;
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/* if this update directory is successfull, we are done */
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if((ret = updateDirectory(directory))>=0)
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{
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free(path);
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sortDirectory(directory);
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return ret;
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}
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/* we don't want to delete the root directory */
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else if(directory == mp3rootDirectory) {
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free(path);
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return 0;
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}
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/* if updateDirectory fials, means we should delete it */
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else {
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LOG("removing directory: %s\n",path);
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deleteFromList(parentDirectory->subDirectories,
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shortname);
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ret = 1;
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/* don't return, path maybe a song now*/
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}
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}
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else if((song = getSongDetails(path,&shortname,&parentDirectory))) {
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if(!parentDirectory->stat && statDirectory(parentDirectory) < 0)
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{
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free(path);
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return 0;
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}
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/* if this song update is successfull, we are done */
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else if(0 == inodeFoundInParent(
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parentDirectory->parent,
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parentDirectory->stat->inode,
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parentDirectory->stat->device) &&
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song && isMusic(getSongUrl(song), &mtime))
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{
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free(path);
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if(song->mtime==mtime) return 0;
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else if(updateSongInfo(song)==0) return 1;
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else {
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removeSongFromDirectory(parentDirectory,
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shortname);
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return 1;
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}
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}
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/* if updateDirectory fials, means we should delete it */
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else {
|
|
removeSongFromDirectory(parentDirectory, shortname);
|
|
ret = 1;
|
|
/* don't return, path maybe a directory now*/
|
|
}
|
|
}
|
|
|
|
/* path not found in the db, see if it actually exists on the fs.
|
|
* Also, if by chance a directory was replaced by a file of the same
|
|
* name or vice versa, we need to add it to the db
|
|
*/
|
|
if(isDir(path) || isMusic(path,NULL)) {
|
|
parentDirectory = addParentPathToDB(path,&shortname);
|
|
if(!parentDirectory || (
|
|
!parentDirectory->stat &&
|
|
statDirectory(parentDirectory) < 0))
|
|
{
|
|
}
|
|
else if(0 == inodeFoundInParent(parentDirectory->parent,
|
|
parentDirectory->stat->inode,
|
|
parentDirectory->stat->device) &&
|
|
addToDirectory(parentDirectory, shortname, path)
|
|
>0)
|
|
{
|
|
ret = 1;
|
|
}
|
|
}
|
|
|
|
free(path);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* return values:
|
|
-1 -> error
|
|
0 -> no error, but nothing updated
|
|
1 -> no error, and stuff updated
|
|
*/
|
|
int updateDirectory(Directory * directory) {
|
|
DIR * dir;
|
|
char cwd[2];
|
|
struct dirent * ent;
|
|
char * s;
|
|
char * utf8;
|
|
char * dirname = getDirectoryPath(directory);
|
|
int ret = 0;
|
|
|
|
{
|
|
if(!directory->stat && statDirectory(directory) < 0) {
|
|
return -1;
|
|
}
|
|
else if(inodeFoundInParent(directory->parent,
|
|
directory->stat->inode,
|
|
directory->stat->device))
|
|
{
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
cwd[0] = '.';
|
|
cwd[1] = '\0';
|
|
if(dirname==NULL) dirname=cwd;
|
|
|
|
if((dir = opendir(rmp2amp(utf8ToFsCharset(dirname))))==NULL) return -1;
|
|
|
|
if(removeDeletedFromDirectory(directory, dir)>0) ret = 1;
|
|
|
|
rewinddir(dir);
|
|
|
|
while((ent = readdir(dir))) {
|
|
if(ent->d_name[0]=='.') continue; /* hide hidden stuff */
|
|
if(strchr(ent->d_name, '\n')) continue;
|
|
|
|
utf8 = fsCharsetToUtf8(ent->d_name);
|
|
|
|
if(!utf8) continue;
|
|
|
|
utf8 = strdup(utf8);
|
|
|
|
if(directory->path) {
|
|
s = malloc(strlen(getDirectoryPath(directory))+
|
|
strlen(utf8)+2);
|
|
sprintf(s,"%s/%s", getDirectoryPath(directory), utf8);
|
|
}
|
|
else s = strdup(utf8);
|
|
if(updateInDirectory(directory,utf8,s)>0) ret = 1;
|
|
free(utf8);
|
|
free(s);
|
|
}
|
|
|
|
closedir(dir);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* return values:
|
|
-1 -> error
|
|
0 -> no error, but nothing found
|
|
1 -> no error, and stuff found
|
|
*/
|
|
int exploreDirectory(Directory * directory) {
|
|
DIR * dir;
|
|
char cwd[2];
|
|
struct dirent * ent;
|
|
char * s;
|
|
char * utf8;
|
|
char * dirname = getDirectoryPath(directory);
|
|
int ret = 0;
|
|
|
|
cwd[0] = '.';
|
|
cwd[1] = '\0';
|
|
if(dirname==NULL) dirname=cwd;
|
|
|
|
DEBUG("explore: attempting to opendir: %s\n",dirname);
|
|
if((dir = opendir(rmp2amp(utf8ToFsCharset(dirname))))==NULL) return -1;
|
|
|
|
DEBUG("explore: %s\n",dirname);
|
|
while((ent = readdir(dir))) {
|
|
if(ent->d_name[0]=='.') continue; /* hide hidden stuff */
|
|
if(strchr(ent->d_name, '\n')) continue;
|
|
|
|
utf8 = fsCharsetToUtf8(ent->d_name);
|
|
|
|
if(!utf8) continue;
|
|
|
|
utf8 = strdup(utf8);
|
|
|
|
DEBUG("explore: found: %s (%s)\n",ent->d_name,utf8);
|
|
|
|
if(directory->path) {
|
|
s = malloc(strlen(getDirectoryPath(directory))+
|
|
strlen(utf8)+2);
|
|
sprintf(s,"%s/%s", getDirectoryPath(directory) ,utf8);
|
|
}
|
|
else s = strdup(utf8);
|
|
if(addToDirectory(directory,utf8,s)>0) ret = 1;
|
|
free(utf8);
|
|
free(s);
|
|
}
|
|
|
|
closedir(dir);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int statDirectory(Directory * dir) {
|
|
struct stat st;
|
|
|
|
if(myStat(getDirectoryPath(dir) ? getDirectoryPath(dir) : "", &st) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
dir->stat = newDirectoryStat(&st);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int inodeFoundInParent(Directory * parent, ino_t inode, dev_t device) {
|
|
while(parent) {
|
|
if(!parent->stat) {
|
|
if(statDirectory(parent) < 0) return -1;
|
|
}
|
|
if(parent->stat->inode == inode &&
|
|
parent->stat->device == device)
|
|
{
|
|
DEBUG("recursive directory found\n");
|
|
return 1;
|
|
}
|
|
parent = parent->parent;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int addSubDirectoryToDirectory(Directory * directory, char * shortname,
|
|
char * name, struct stat * st)
|
|
{
|
|
Directory * subDirectory;
|
|
|
|
if(inodeFoundInParent(directory, st->st_ino, st->st_dev)) return 0;
|
|
|
|
subDirectory = newDirectory(name, directory);
|
|
subDirectory->stat = newDirectoryStat(st);
|
|
|
|
if(exploreDirectory(subDirectory)<1) {
|
|
freeDirectory(subDirectory);
|
|
return 0;
|
|
}
|
|
|
|
insertInList(directory->subDirectories, shortname,
|
|
subDirectory);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int addToDirectory(Directory * directory, char * shortname, char * name) {
|
|
struct stat st;
|
|
|
|
if(myStat(name, &st)) {
|
|
DEBUG("failed to stat %s: %s\n", name, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if(S_ISREG(st.st_mode) && hasMusicSuffix(name)) {
|
|
Song * song;
|
|
song = addSongToList(directory->songs, shortname, name,
|
|
SONG_TYPE_FILE, directory);
|
|
if(!song) return -1;
|
|
LOG("added %s\n", name);
|
|
return 1;
|
|
}
|
|
else if(S_ISDIR(st.st_mode)) {
|
|
return addSubDirectoryToDirectory(directory, shortname, name,
|
|
&st);
|
|
}
|
|
|
|
DEBUG("addToDirectory: %s is not a directory or music\n",name);
|
|
|
|
return -1;
|
|
}
|
|
|
|
void closeMp3Directory() {
|
|
freeDirectory(mp3rootDirectory);
|
|
destroyTagTracker();
|
|
}
|
|
|
|
Directory * findSubDirectory(Directory * directory,char * name) {
|
|
void * subDirectory;
|
|
char * dup = strdup(name);
|
|
char * key;
|
|
|
|
key = strtok(dup,"/");
|
|
if(!key) {
|
|
free(dup);
|
|
return NULL;
|
|
}
|
|
|
|
if(findInList(directory->subDirectories,key,&subDirectory)) {
|
|
free(dup);
|
|
return (Directory *)subDirectory;
|
|
}
|
|
|
|
free(dup);
|
|
return NULL;
|
|
}
|
|
|
|
Directory * getSubDirectory(Directory * directory, char * name,
|
|
char ** shortname)
|
|
{
|
|
Directory * subDirectory;
|
|
int len;
|
|
|
|
if(name==NULL || name[0]=='\0' || strcmp(name,"/")==0) {
|
|
return directory;
|
|
}
|
|
|
|
if((subDirectory = findSubDirectory(directory,name))==NULL) return NULL;
|
|
|
|
*shortname = name;
|
|
|
|
len = 0;
|
|
while(name[len]!='/' && name[len]!='\0') len++;
|
|
while(name[len]=='/') len++;
|
|
|
|
return getSubDirectory(subDirectory,&(name[len]),shortname);
|
|
}
|
|
|
|
Directory * getDirectoryDetails(char * name, char ** shortname) {
|
|
*shortname = NULL;
|
|
|
|
return getSubDirectory(mp3rootDirectory,name,shortname);
|
|
}
|
|
|
|
Directory * getDirectory(char * name) {
|
|
char * shortname;
|
|
|
|
return getSubDirectory(mp3rootDirectory,name,&shortname);
|
|
}
|
|
|
|
int printDirectoryList(FILE * fp, DirectoryList * directoryList) {
|
|
ListNode * node = directoryList->firstNode;
|
|
Directory * directory;
|
|
|
|
while(node!=NULL) {
|
|
directory = (Directory *)node->data;
|
|
myfprintf(fp,"%s%s\n", DIRECTORY_DIR,
|
|
getDirectoryPath(directory));
|
|
node = node->nextNode;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int printDirectoryInfo(FILE * fp, char * name) {
|
|
Directory * directory;
|
|
|
|
if((directory = getDirectory(name))==NULL) {
|
|
commandError(fp, ACK_ERROR_NO_EXIST, "directory not found",
|
|
NULL);
|
|
return -1;
|
|
}
|
|
|
|
printDirectoryList(fp,directory->subDirectories);
|
|
printSongInfoFromList(fp,directory->songs);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void writeDirectoryInfo(FILE * fp, Directory * directory) {
|
|
ListNode * node = (directory->subDirectories)->firstNode;
|
|
Directory * subDirectory;
|
|
|
|
if(directory->path) {
|
|
myfprintf(fp,"%s%s\n", DIRECTORY_BEGIN,
|
|
getDirectoryPath(directory));
|
|
}
|
|
|
|
while(node!=NULL) {
|
|
subDirectory = (Directory *)node->data;
|
|
myfprintf(fp,"%s%s\n",DIRECTORY_DIR,node->key);
|
|
writeDirectoryInfo(fp,subDirectory);
|
|
node = node->nextNode;
|
|
}
|
|
|
|
writeSongInfoFromList(fp,directory->songs);
|
|
|
|
if(directory->path) {
|
|
myfprintf(fp,"%s%s\n", DIRECTORY_END,
|
|
getDirectoryPath(directory));
|
|
}
|
|
}
|
|
|
|
void readDirectoryInfo(FILE * fp,Directory * directory) {
|
|
char buffer[MAXPATHLEN*2];
|
|
int bufferSize = MAXPATHLEN*2;
|
|
char * key;
|
|
Directory * subDirectory;
|
|
int strcmpRet;
|
|
char * name;
|
|
ListNode * nextDirNode = directory->subDirectories->firstNode;
|
|
ListNode * nodeTemp;
|
|
|
|
while(myFgets(buffer,bufferSize,fp) && 0!=strncmp(DIRECTORY_END,buffer,strlen(DIRECTORY_END))) {
|
|
if(0==strncmp(DIRECTORY_DIR,buffer,strlen(DIRECTORY_DIR))) {
|
|
key = strdup(&(buffer[strlen(DIRECTORY_DIR)]));
|
|
if(myFgets(buffer,bufferSize,fp)<0) {
|
|
ERROR("Error reading db, fgets\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
/* for compatibility with db's prior to 0.11 */
|
|
if(0==strncmp(DIRECTORY_MTIME,buffer,
|
|
strlen(DIRECTORY_MTIME)))
|
|
{
|
|
if(myFgets(buffer,bufferSize,fp)<0) {
|
|
ERROR("Error reading db, fgets\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
if(strncmp(DIRECTORY_BEGIN,buffer,strlen(DIRECTORY_BEGIN))) {
|
|
ERROR("Error reading db at line: %s\n",buffer);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
name = strdup(&(buffer[strlen(DIRECTORY_BEGIN)]));
|
|
|
|
while(nextDirNode && (strcmpRet =
|
|
strcmp(key,nextDirNode->key)) > 0) {
|
|
nodeTemp = nextDirNode->nextNode;
|
|
deleteNodeFromList(directory->subDirectories,
|
|
nextDirNode);
|
|
nextDirNode = nodeTemp;
|
|
}
|
|
|
|
if(NULL==nextDirNode) {
|
|
subDirectory = newDirectory(name, directory);
|
|
insertInList(directory->subDirectories,
|
|
key,
|
|
(void *)subDirectory);
|
|
}
|
|
else if(strcmpRet == 0) {
|
|
subDirectory = (Directory *)nextDirNode->data;
|
|
nextDirNode = nextDirNode->nextNode;
|
|
}
|
|
else {
|
|
subDirectory = newDirectory(name, directory);
|
|
insertInListBeforeNode(
|
|
directory->subDirectories,
|
|
nextDirNode,
|
|
-1,
|
|
key,
|
|
(void *)subDirectory);
|
|
}
|
|
|
|
free(name);
|
|
free(key);
|
|
readDirectoryInfo(fp,subDirectory);
|
|
}
|
|
else if(0==strncmp(SONG_BEGIN,buffer,strlen(SONG_BEGIN))) {
|
|
readSongInfoIntoList(fp, directory->songs, directory);
|
|
}
|
|
else {
|
|
ERROR("Unknown line in db: %s\n",buffer);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
while(nextDirNode) {
|
|
nodeTemp = nextDirNode->nextNode;
|
|
deleteNodeFromList(directory->subDirectories,nextDirNode);
|
|
nextDirNode = nodeTemp;
|
|
}
|
|
}
|
|
|
|
void sortDirectory(Directory * directory) {
|
|
ListNode * node = directory->subDirectories->firstNode;
|
|
Directory * subDir;
|
|
|
|
sortList(directory->subDirectories);
|
|
sortList(directory->songs);
|
|
|
|
while(node!=NULL) {
|
|
subDir = (Directory *)node->data;
|
|
sortDirectory(subDir);
|
|
node = node->nextNode;
|
|
}
|
|
}
|
|
|
|
int writeDirectoryDB() {
|
|
FILE * fp;
|
|
char * dbFile = getDbFile();
|
|
|
|
DEBUG("removing empty directories from DB\n");
|
|
deleteEmptyDirectoriesInDirectory(mp3rootDirectory);
|
|
|
|
DEBUG("sorting DB\n");
|
|
|
|
sortDirectory(mp3rootDirectory);
|
|
|
|
DEBUG("writing DB\n");
|
|
|
|
while(!(fp=fopen(dbFile,"w")) && errno==EINTR);
|
|
if(!fp) {
|
|
ERROR("unable to write to db file \"%s\": %s\n",
|
|
dbFile, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
/* block signals when writing the db so we don't get a corrupted db*/
|
|
myfprintf(fp,"%s\n",DIRECTORY_INFO_BEGIN);
|
|
myfprintf(fp,"%s%s\n",DIRECTORY_MPD_VERSION,VERSION);
|
|
myfprintf(fp,"%s%s\n",DIRECTORY_FS_CHARSET,getFsCharset());
|
|
myfprintf(fp,"%s\n",DIRECTORY_INFO_END);
|
|
|
|
writeDirectoryInfo(fp,mp3rootDirectory);
|
|
|
|
while(fclose(fp) && errno==EINTR);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int readDirectoryDB() {
|
|
FILE * fp = NULL;
|
|
char * dbFile = getDbFile();
|
|
struct stat st;
|
|
|
|
if(!mp3rootDirectory) mp3rootDirectory = newDirectory(NULL, NULL);
|
|
while(!(fp=fopen(dbFile,"r")) && errno==EINTR);
|
|
if(fp == NULL) {
|
|
ERROR("unable open db file \"%s\": %s\n",
|
|
dbFile, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
/* get initial info */
|
|
{
|
|
char buffer[100];
|
|
int bufferSize = 100;
|
|
int foundFsCharset = 0;
|
|
int foundVersion = 0;
|
|
|
|
if(myFgets(buffer,bufferSize,fp)<0) {
|
|
ERROR("Error reading db, fgets\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if(0==strcmp(DIRECTORY_INFO_BEGIN,buffer)) {
|
|
while(myFgets(buffer,bufferSize,fp) &&
|
|
0!=strcmp(DIRECTORY_INFO_END,buffer))
|
|
{
|
|
if(0==strncmp(DIRECTORY_MPD_VERSION,buffer,
|
|
strlen(DIRECTORY_MPD_VERSION)))
|
|
{
|
|
if(foundVersion) {
|
|
ERROR("already found "
|
|
"version in db\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
foundVersion = 1;
|
|
}
|
|
else if(0==strncmp(DIRECTORY_FS_CHARSET,buffer,
|
|
strlen(DIRECTORY_FS_CHARSET)))
|
|
{
|
|
char * fsCharset;
|
|
char * tempCharset;
|
|
|
|
if(foundFsCharset) {
|
|
WARNING("already found "
|
|
"fs charset in db\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
foundFsCharset = 1;
|
|
|
|
fsCharset = &(buffer[strlen(
|
|
DIRECTORY_FS_CHARSET)]);
|
|
if((tempCharset =
|
|
getConfigParamValue(
|
|
CONF_FS_CHARSET)) &&
|
|
strcmp(fsCharset,tempCharset))
|
|
{
|
|
WARNING("Using \"%s\" for the "
|
|
"filesystem charset "
|
|
"instead of \"%s\"\n",
|
|
fsCharset,tempCharset);
|
|
WARNING("maybe you need to "
|
|
"recreate the db?\n");
|
|
setFsCharset(fsCharset);
|
|
}
|
|
}
|
|
else {
|
|
ERROR("directory: unknown line in db info: %s\n",
|
|
buffer);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
ERROR("db info not found in db file\n");
|
|
ERROR("you should recreate the db using --create-db\n");
|
|
fseek(fp,0,SEEK_SET);
|
|
}
|
|
}
|
|
|
|
DEBUG("reading DB\n");
|
|
|
|
readDirectoryInfo(fp,mp3rootDirectory);
|
|
while(fclose(fp) && errno==EINTR);
|
|
|
|
stats.numberOfSongs = countSongsIn(stderr,NULL);
|
|
stats.dbPlayTime = sumSongTimesIn(stderr,NULL);
|
|
|
|
if(stat(dbFile,&st)==0) directory_dbModTime = st.st_mtime;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void updateMp3Directory() {
|
|
switch(updateDirectory(mp3rootDirectory)) {
|
|
case 0:
|
|
/* nothing updated */
|
|
return;
|
|
case 1:
|
|
if(writeDirectoryDB()<0) {
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
break;
|
|
default:
|
|
/* something was updated and db should be written */
|
|
ERROR("problems updating music db\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
int traverseAllInSubDirectory(FILE * fp, Directory * directory,
|
|
int (*forEachSong)(FILE *, Song *, void *),
|
|
int (*forEachDir)(FILE *, Directory *, void *),
|
|
void * data)
|
|
{
|
|
ListNode * node = directory->songs->firstNode;
|
|
Song * song;
|
|
Directory * dir;
|
|
int errFlag = 0;
|
|
|
|
if(forEachDir) {
|
|
errFlag = forEachDir(fp,directory,data);
|
|
if(errFlag) return errFlag;
|
|
}
|
|
|
|
if(forEachSong) {
|
|
while(node!=NULL && !errFlag) {
|
|
song = (Song *)node->data;
|
|
errFlag = forEachSong(fp,song,data);
|
|
node = node->nextNode;
|
|
}
|
|
if(errFlag) return errFlag;
|
|
}
|
|
|
|
node = directory->subDirectories->firstNode;
|
|
|
|
while(node!=NULL && !errFlag) {
|
|
dir = (Directory *)node->data;
|
|
errFlag = traverseAllInSubDirectory(fp,dir,forEachSong,
|
|
forEachDir,data);
|
|
node = node->nextNode;
|
|
}
|
|
|
|
return errFlag;
|
|
}
|
|
|
|
int traverseAllIn(FILE * fp, char * name,
|
|
int (*forEachSong)(FILE *, Song *, void *),
|
|
int (*forEachDir)(FILE *, Directory *, void *),
|
|
void * data) {
|
|
Directory * directory;
|
|
|
|
if((directory = getDirectory(name))==NULL) {
|
|
Song * song;
|
|
if((song = getSongFromDB(name)) && forEachSong) {
|
|
return forEachSong(fp, song, data);
|
|
}
|
|
commandError(fp, ACK_ERROR_NO_EXIST,
|
|
"directory or file not found", NULL);
|
|
return -1;
|
|
}
|
|
|
|
return traverseAllInSubDirectory(fp,directory,forEachSong,forEachDir,
|
|
data);
|
|
}
|
|
|
|
void freeAllDirectoryStats(Directory * directory) {
|
|
ListNode * node = directory->subDirectories->firstNode;
|
|
|
|
while(node != NULL) {
|
|
freeAllDirectoryStats((Directory *)node->data);
|
|
node = node->nextNode;
|
|
}
|
|
|
|
freeDirectoryStatFromDirectory(directory);
|
|
}
|
|
|
|
void initMp3Directory() {
|
|
struct stat st;
|
|
|
|
mp3rootDirectory = newDirectory(NULL, NULL);
|
|
exploreDirectory(mp3rootDirectory);
|
|
freeAllDirectoryStats(mp3rootDirectory);
|
|
stats.numberOfSongs = countSongsIn(stderr,NULL);
|
|
stats.dbPlayTime = sumSongTimesIn(stderr,NULL);
|
|
|
|
if(stat(getDbFile(),&st)==0) directory_dbModTime = st.st_mtime;
|
|
}
|
|
|
|
Song * getSongDetails(char * file, char ** shortnameRet,
|
|
Directory ** directoryRet)
|
|
{
|
|
void * song = NULL;
|
|
Directory * directory;
|
|
char * dir = NULL;
|
|
char * dup = strdup(file);
|
|
char * shortname = dup;
|
|
char * c = strtok(dup,"/");
|
|
|
|
DEBUG("get song: %s\n",file);
|
|
|
|
while(c) {
|
|
shortname = c;
|
|
c = strtok(NULL,"/");
|
|
}
|
|
|
|
if(shortname!=dup) {
|
|
for(c = dup; c < shortname-1; c++) {
|
|
if(*c=='\0') *c = '/';
|
|
}
|
|
dir = dup;
|
|
}
|
|
|
|
if(!(directory = getDirectory(dir))) {
|
|
free(dup);
|
|
return NULL;
|
|
}
|
|
|
|
if(!findInList(directory->songs,shortname,&song)) {
|
|
free(dup);
|
|
return NULL;
|
|
}
|
|
|
|
free(dup);
|
|
if(shortnameRet) *shortnameRet = shortname;
|
|
if(directoryRet) *directoryRet = directory;
|
|
return (Song *)song;
|
|
}
|
|
|
|
Song * getSongFromDB(char * file) {
|
|
return getSongDetails(file,NULL,NULL);
|
|
}
|
|
|
|
time_t getDbModTime() {
|
|
return directory_dbModTime;
|
|
}
|
|
|
|
/* pass a NULL to this function to clear the static lastDir, this way
|
|
* if a directory is freed, and then realloced, the wrong name isn't
|
|
* output */
|
|
/*char * getDirectoryPath(Directory * dir) {
|
|
static char * buffer = NULL;
|
|
static int bufferSize = 0;
|
|
static Directory * lastDir = NULL;
|
|
static int pos = 0;
|
|
int dlen;
|
|
|
|
if(!dir || !dir->name) {
|
|
lastDir = NULL;
|
|
return "";
|
|
}
|
|
|
|
if(lastDir == dir) return buffer+pos+1;
|
|
|
|
pos = bufferSize-1;
|
|
|
|
while(dir && dir->name) {
|
|
dlen = strlen(dir->name);
|
|
// add one for the '/'
|
|
pos -= dlen+1;
|
|
if(pos < 0) {
|
|
buffer = realloc(buffer, bufferSize-pos);
|
|
if(bufferSize) {
|
|
memmove(buffer-pos, buffer, bufferSize);
|
|
}
|
|
bufferSize += -pos;
|
|
buffer[bufferSize-1] = '\0';
|
|
pos = 0;
|
|
}
|
|
strncpy(buffer+pos+1, dir->name, dlen);
|
|
buffer[pos] = '/';
|
|
dir = dir->parent;
|
|
}
|
|
|
|
lastDir = dir;
|
|
|
|
return buffer+pos+1;
|
|
}*/
|