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/* the Music Player Daemon (MPD)
* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
* 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 "permission.h"
#include "conf.h"
#include "list.h"
#include "log.h"
#include <string.h>
#define PERMISSION_PASSWORD_CHAR "@"
#define PERMISSION_SEPERATOR ","
#define PERMISSION_READ_STRING "read"
#define PERMISSION_ADD_STRING "add"
#define PERMISSION_CONTROL_STRING "control"
#define PERMISSION_ADMIN_STRING "admin"
List * permission_passwords;
unsigned int permission_default;
unsigned int parsePermissions(char * string) {
unsigned int permission = 0;
char * temp;
char * tok;
if(!string) return 0;
temp = strtok_r(string,PERMISSION_SEPERATOR,&tok);
while(temp) {
if(strcmp(temp,PERMISSION_READ_STRING)==0) {
permission |= PERMISSION_READ;
}
else if(strcmp(temp,PERMISSION_ADD_STRING)==0) {
permission |= PERMISSION_ADD;
}
else if(strcmp(temp,PERMISSION_CONTROL_STRING)==0) {
permission |= PERMISSION_CONTROL;
}
else if(strcmp(temp,PERMISSION_ADMIN_STRING)==0) {
permission |= PERMISSION_ADMIN;
}
else {
ERROR("uknown permission \"%s\"\n",temp);
exit(EXIT_FAILURE);
}
temp = strtok_r(NULL,PERMISSION_SEPERATOR,&tok);
}
return permission;
}
void initPermissions() {
char * passwordSets;
char * nextSet;
char * temp;
char * cp1;
char * cp2;
char * password;
unsigned int * permission;
permission_passwords = makeList(free);
permission_default = PERMISSION_READ | PERMISSION_ADD |
PERMISSION_CONTROL | PERMISSION_ADMIN;
if(getConf()[CONF_DEFAULT_PERMISSIONS]) {
permission_default = parsePermissions(
getConf()[CONF_DEFAULT_PERMISSIONS]);
}
if(!getConf()[CONF_PASSWORD]) return;
if(!getConf()[CONF_DEFAULT_PERMISSIONS]) permission_default = 0;
passwordSets = strdup(getConf()[CONF_PASSWORD]);
nextSet = strtok_r(passwordSets,CONF_CAT_CHAR,&cp1);
while(nextSet && strlen(nextSet)) {
if(!strstr(nextSet,PERMISSION_PASSWORD_CHAR)) {
ERROR("\"%s\" not found in password string \"%s\"\n",
PERMISSION_PASSWORD_CHAR,
nextSet);
exit(EXIT_FAILURE);
}
if(!(temp = strtok_r(nextSet,PERMISSION_PASSWORD_CHAR,&cp2))) {
ERROR("something weird just happend in permission.c\n");
exit(EXIT_FAILURE);
}
password = temp;
permission = malloc(sizeof(unsigned int));
*permission = parsePermissions(strtok_r(NULL,"",&cp2));
insertInList(permission_passwords,password,permission);
nextSet = strtok_r(NULL,CONF_CAT_CHAR,&cp1);
}
sortList(permission_passwords);
free(passwordSets);
}
int getPermissionFromPassword(char * password, unsigned int * permission) {
void * foundPermission;
if(findInList(permission_passwords,password,&foundPermission)) {
*permission = *((unsigned int *)foundPermission);
return 0;
}
return -1;
}
void finishPermissions() {
freeList(permission_passwords);
}
unsigned int getDefaultPermissions() {
return permission_default;
}
/* vim:set shiftwidth=4 tabstop=8 expandtab: */
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