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LibCore: Add Core::Account for login management.

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Core::Account abstracts login semantics like password checking and
switching uid/gid.
This commit is contained in:
Peter Elliott 2020-07-30 17:31:40 -06:00 • committed by Andreas Kling
parent 2bda21318c
commit 3d34724d37
3 changed files with 289 additions and 0 deletions
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Libraries/LibCore/Account.h Normal file
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/*
* Copyright (c) 2020, Peter Elliott <pelliott@ualberta.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Result.h>
#include <AK/String.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <pwd.h>
#include <sys/types.h>
namespace Core {
class Account {
public:
static Result<Account, String> from_name(const char* username);
static Result<Account, String> from_uid(uid_t uid);
bool authenticate(const char* password) const;
bool login() const;
String username() const { return m_username; }
String password_hash() const { return m_password_hash; }
// Setters only affect in-memory copy of password.
// You must call sync to apply changes.
void set_password(const char* password);
void set_password_enabled(bool enabled);
void delete_password();
bool has_password() const { return !m_password_hash.is_empty(); }
uid_t uid() const { return m_uid; }
gid_t gid() const { return m_gid; }
const String& gecos() const { return m_gecos; }
const String& home_directory() const { return m_home_directory; }
const String& shell() const { return m_shell; }
const Vector<gid_t>& extra_gids() const { return m_extra_gids; }
bool sync();
private:
Account(struct passwd* pwd, Vector<gid_t> extra_gids);
String m_username;
// Contents of passwd field in passwd entry.
// Can be empty, "x", or contain a leading '!'
String m_password_hash;
uid_t m_uid { 0 };
gid_t m_gid { 0 };
String m_gecos;
String m_home_directory;
String m_shell;
Vector<gid_t> m_extra_gids;
};
}