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59 lines
1.8 KiB
59 lines
1.8 KiB
// ------------------------------------------------------------------------
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// 🚀 Project Active8
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// 🔗 UserStateActive Thing (activething.com) git.activething.com/go
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//
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// File name user.go
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// ✍️ Created by DEV
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// 📅 Modified 04/12/2024
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//
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// 🔒 Copyright 2024 activething.com
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//
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// 📜 LICENSE --------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package brbac
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const (
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userGpMask uint64 = 0xFF << 56
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userIdMask uint64 = 0x00FFFFFFFFFFFFFF
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)
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type (
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User uint64
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)
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// NewUser creates a new User with optional components
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func NewUser(groupID byte, id uint64) User {
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var uid User
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return uid.SetGroup(groupID) | uid.SetID(id)
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}
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func (u User) ID() uint64 { return uint64(u) & userIdMask }
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func (u User) Group() byte { return byte((uint64(u) & userGpMask) >> 48) }
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// SetGroup updates the group bits of the User
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func (u User) SetGroup(groupId byte) User {
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return User((uint64(u) & ^userGpMask) | (uint64(groupId) << 48))
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}
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// SetID updates the 48-bit identifier of the User
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func (u User) SetID(id uint64) User {
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if id > userIdMask {
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//todo
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panic("Excced max id")
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}
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return User((uint64(u) & ^userIdMask) | (id & userIdMask))
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}
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