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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* 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 "log.h"
#include "utils.h"
#include <glib.h>
#include <stdbool.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"
static GHashTable *permission_passwords;
static unsigned permission_default;
static unsigned parsePermissions(char *string)
{
unsigned 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 {
FATAL("unknown permission \"%s\"\n", temp);
}
temp = strtok_r(NULL, PERMISSION_SEPERATOR, &tok);
}
return permission;
}
void initPermissions(void)
{
char *password;
unsigned permission;
ConfigParam *param;
permission_passwords = g_hash_table_new_full(g_str_hash, g_str_equal,
g_free, NULL);
permission_default = PERMISSION_READ | PERMISSION_ADD |
PERMISSION_CONTROL | PERMISSION_ADMIN;
param = getNextConfigParam(CONF_PASSWORD, NULL);
if (param) {
permission_default = 0;
do {
char *separator =
strchr(param->value, PERMISSION_PASSWORD_CHAR);
if (separator == NULL)
FATAL("\"%c\" not found in password string "
"\"%s\", line %i\n",
PERMISSION_PASSWORD_CHAR,
param->value, param->line);
password = g_strndup(param->value,
separator - param->value);
permission = parsePermissions(separator + 1);
g_hash_table_replace(permission_passwords,
password,
GINT_TO_POINTER(permission));
} while ((param = getNextConfigParam(CONF_PASSWORD, param)));
}
param = getConfigParam(CONF_DEFAULT_PERMS);
if (param)
permission_default = parsePermissions(param->value);
}
int getPermissionFromPassword(char *password, unsigned *permission)
{
bool found;
gpointer key, value;
found = g_hash_table_lookup_extended(permission_passwords,
password, &key, &value);
if (!found)
return -1;
*permission = GPOINTER_TO_INT(value);
return 0;
}
void finishPermissions(void)
{
g_hash_table_destroy(permission_passwords);
}
unsigned getDefaultPermissions(void)
{
return permission_default;
}
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