140 lines
3.8 KiB
C
140 lines
3.8 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 "permission.h"
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#include "conf.h"
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#include "list.h"
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#include "log.h"
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#include <string.h>
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#define PERMISSION_PASSWORD_CHAR "@"
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#define PERMISSION_SEPERATOR ","
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#define PERMISSION_READ_STRING "read"
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#define PERMISSION_ADD_STRING "add"
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#define PERMISSION_CONTROL_STRING "control"
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#define PERMISSION_ADMIN_STRING "admin"
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List * permission_passwords;
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unsigned int permission_default;
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unsigned int parsePermissions(char * string) {
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unsigned int permission = 0;
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char * temp;
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char * tok;
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if(!string) return 0;
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temp = strtok_r(string,PERMISSION_SEPERATOR,&tok);
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while(temp) {
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if(strcmp(temp,PERMISSION_READ_STRING)==0) {
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permission |= PERMISSION_READ;
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}
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else if(strcmp(temp,PERMISSION_ADD_STRING)==0) {
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permission |= PERMISSION_ADD;
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}
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else if(strcmp(temp,PERMISSION_CONTROL_STRING)==0) {
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permission |= PERMISSION_CONTROL;
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}
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else if(strcmp(temp,PERMISSION_ADMIN_STRING)==0) {
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permission |= PERMISSION_ADMIN;
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}
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else {
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ERROR("uknown permission \"%s\"\n",temp);
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exit(EXIT_FAILURE);
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}
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temp = strtok_r(NULL,PERMISSION_SEPERATOR,&tok);
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}
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return permission;
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}
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void initPermissions() {
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char * temp;
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char * cp2;
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char * password;
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unsigned int * permission;
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ConfigParam * param;
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permission_passwords = makeList(free);
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permission_default = PERMISSION_READ | PERMISSION_ADD |
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PERMISSION_CONTROL | PERMISSION_ADMIN;
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param = getNextConfigParam(CONF_PASSWORD, NULL);
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if(param) {
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permission_default = 0;
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do {
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if(!strstr(param->value, PERMISSION_PASSWORD_CHAR)) {
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ERROR("\"%s\" not found in password string "
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"\"%s\", line %i\n",
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PERMISSION_PASSWORD_CHAR,
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param->value,
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param->line);
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exit(EXIT_FAILURE);
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}
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if(!(temp = strtok_r(param->value,
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PERMISSION_PASSWORD_CHAR,&cp2))) {
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ERROR("something weird just happend in permission.c\n");
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exit(EXIT_FAILURE);
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}
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password = temp;
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permission = malloc(sizeof(unsigned int));
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*permission = parsePermissions(strtok_r(NULL,"",&cp2));
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insertInList(permission_passwords,password,permission);
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} while((param = getNextConfigParam(CONF_PASSWORD, param)));
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}
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param = getConfigParam(CONF_DEFAULT_PERMS);
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if(param) permission_default = parsePermissions(param->value);
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sortList(permission_passwords);
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}
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int getPermissionFromPassword(char * password, unsigned int * permission) {
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void * foundPermission;
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if(findInList(permission_passwords,password,&foundPermission)) {
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*permission = *((unsigned int *)foundPermission);
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return 0;
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}
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return -1;
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}
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void finishPermissions() {
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freeList(permission_passwords);
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}
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unsigned int getDefaultPermissions() {
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return permission_default;
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}
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/* vim:set shiftwidth=4 tabstop=8 expandtab: */
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