/* 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 <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(const char *string) { unsigned permission = 0; gchar **tokens; if (!string) return 0; tokens = g_strsplit(string, PERMISSION_SEPERATOR, 0); for (unsigned i = 0; tokens[i] != NULL; ++i) { char *temp = tokens[i]; 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); } } g_strfreev(tokens); return permission; } void initPermissions(void) { char *password; unsigned permission; const struct config_param *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 = config_get_next_param(CONF_PASSWORD, NULL); if (param) { permission_default = 0; do { const 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 = config_get_next_param(CONF_PASSWORD, param))); } param = config_get_param(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; }