/* * Copyright (C) 2003-2013 The Music Player Daemon Project * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include "Permission.hxx" #include "ConfigData.hxx" #include "ConfigGlobal.hxx" #include "ConfigOption.hxx" #include "system/FatalError.hxx" #include #include #include #include #include static constexpr char PERMISSION_PASSWORD_CHAR = '@'; #define PERMISSION_SEPERATOR "," static constexpr struct { const char *name; unsigned value; } permission_names[] = { { "read", PERMISSION_READ }, { "add", PERMISSION_ADD }, { "control", PERMISSION_CONTROL }, { "admin", PERMISSION_ADMIN }, { nullptr, 0 }, }; static std::map permission_passwords; static unsigned permission_default; gcc_pure static unsigned ParsePermission(const char *p) { for (auto i = permission_names; i->name != nullptr; ++i) if (strcmp(p, i->name) == 0) return i->value; FormatFatalError("unknown permission \"%s\"", p); } static unsigned parsePermissions(const char *string) { assert(string != nullptr); unsigned permission = 0; gchar **tokens; tokens = g_strsplit(string, PERMISSION_SEPERATOR, 0); for (unsigned i = 0; tokens[i] != NULL; ++i) { char *temp = tokens[i]; permission |= ParsePermission(temp); } g_strfreev(tokens); return permission; } void initPermissions(void) { unsigned permission; const struct config_param *param; 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.c_str(), PERMISSION_PASSWORD_CHAR); if (separator == NULL) FormatFatalError("\"%c\" not found in password string " "\"%s\", line %i", PERMISSION_PASSWORD_CHAR, param->value.c_str(), param->line); std::string password(param->value.c_str(), separator); permission = parsePermissions(separator + 1); permission_passwords.insert(std::make_pair(std::move(password), permission)); } while ((param = config_get_next_param(CONF_PASSWORD, param))); } param = config_get_param(CONF_DEFAULT_PERMS); if (param) permission_default = parsePermissions(param->value.c_str()); } int getPermissionFromPassword(char const* password, unsigned* permission) { auto i = permission_passwords.find(password); if (i == permission_passwords.end()) return -1; *permission = i->second; return 0; } unsigned getDefaultPermissions(void) { return permission_default; }