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/*
* 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 <map>
#include <string>
#include <glib.h>
#include <assert.h>
#include <string.h>
static constexpr char 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 std::map<std::string, unsigned> permission_passwords;
static unsigned permission_default;
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];
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 {
FormatFatalError("unknown permission \"%s\"", 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;
}
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