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docs: self-hosted licensing SDK design spec
This commit is contained in:
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# 自研授权 SDK 设计方案
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> **日期**:2026-05-18
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> **背景**:比特安索授权云费用过高,决定优先推进自研授权方案。
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> **原则**:与比特安索双线共存,Provider 可扩展架构,后续可接入更多第三方授权方式。
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---
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## 目录
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1. [决策摘要](#1-决策摘要)
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2. [总体架构](#2-总体架构)
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3. [许可证协议与数据模型](#3-许可证协议与数据模型)
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4. [Rust 层核心逻辑](#4-rust-层核心逻辑)
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5. [平台后端变更](#5-平台后端变更)
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6. [安全设计](#6-安全设计)
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7. [实施阶段](#7-实施阶段)
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---
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## 1. 决策摘要
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| 决策项 | 选择 | 理由 |
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|--------|------|------|
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| 授权服务形态 | **混合模式** | 有网络时在线验证(心跳/租约续期),断网时本地缓存可用至离线宽限期 |
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| 加密体系 | **非对称签名 RSA-256 + AES-256-GCM 加密载荷** | 离线验签 + 内容加密防窥探,每个 license 独立 AES 密钥防批量破解 |
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| 授权粒度 | **完整属性**:有效期 + 终端限制 + 并发用户数 + 使用次数 + 特性开关 | 对齐现有比特业务属性,功能上不降级 |
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| 后端集成 | **复用 API + Webhook 双服务** | 签发走 API(管理操作需认证鉴权),SDK 交互走 Webhook(高频快速 2xx) |
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| 比特兼容 | **双线共存 + Provider 可扩展架构** | 后续可接入更多第三方 |
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| 终端识别 | **硬件指纹分层采集 + 稳定度评分兜底** | 强指纹精确匹配,弱指纹分配服务器 UUID,管理员可手动释放 |
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| Rust 架构 | **单 cdylib + trait 多 Provider** | 公共模块共享,扩展第三方只需增加 trait 实现 |
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| SDK 交互安全 | **Nonce + Timestamp + HMAC 签名防重放** | 简单有效,无需序列号同步 |
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---
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## 2. 总体架构
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### 2.1 全系统组件图
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```
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┌─────────────────────────────────────────────────────────────────┐
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│ 客户现场 │
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│ ┌──────────┐ ┌──────────────────┐ ┌──────────────────┐ │
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│ │ 客户应用 │───▶│ Java SDK │ │ 许可证配置文件 │ │
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│ └──────────┘ │ AuthProvider impl │◀───│ ~/.craftlabs/ │ │
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│ │ ┌──────────────┐ │ │ license_cache │ │
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│ │ │BitAnswerProv │ │ │ device_id │ │
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│ │ ├──────────────┤ │ └──────────────────┘ │
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│ │ │SelfHostedPrv │ │ │
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│ │ └──────┬───────┘ │ │
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│ └────────┼────────┘ │
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│ │ JNI │
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│ ┌────────▼────────┐ │
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│ │ Rust craft-core │ libcraftlabs_auth_core │
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│ │ ◇ trait Provider│ │
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│ │ ┌─────────────┐ │ │
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│ │ │BitAnswer │ │──────▶ 比特安索云 │
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│ │ ├─────────────┤ │ │
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│ │ │SelfHosted │ │──HTTPS▶ license-webhook │
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│ │ └─────────────┘ │ │
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│ │ device.rs │ 硬件指纹分层采集 │
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│ │ crypto.rs │ HKDF+AES-GCM+RSA验签 │
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│ │ security/ │ 反调试/完整性/混淆 │
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│ └────────────────┘ │
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└─────────────────────────────────────────────────────────────────┘
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┌─────────────────────────────────────────────────────────────────┐
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│ 创飞机房 / 云 │
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│ │
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│ ┌──────────────────────────┐ ┌──────────────────────────┐ │
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│ │ license-webhook-ingress │ │ delivery-platform-api │ │
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│ │ :8081 │ │ :8080 │ │
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│ │ SDK 在线端点: │ │ 许可证签发端点: │ │
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│ │ /license/v1/activate │◀──│ /api/v1/licenses │ │
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│ │ /license/v1/heartbeat │ │ /api/v1/licenses/{id} │ │
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│ │ /license/v1/check │ │ /api/v1/licenses/{id}/ │ │
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│ │ /license/v1/release │ │ revoke │ │
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│ │ │ │ │ │
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│ │ 事件回调 ─────────────▶ │ │ 合同/SN/终端/审计 │ │
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│ └──────────────────────────┘ └──────────────────────────┘ │
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│ │ │ │
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│ └──────────┬─────────────────┘ │
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│ ▼ │
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│ ┌──────────────┐ │
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│ │ PostgreSQL 15│ │
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│ └──────────────┘ │
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└─────────────────────────────────────────────────────────────────┘
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```
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### 2.2 Rust 层模块结构(改造后)
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```
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native/craft-core/src/
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├── lib.rs # cdylib 入口 + C ABI 路由
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├── trait_provider.rs # Provider trait 定义 + select_provider
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│
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├── provider_bitanswer/ # 现有逻辑封装
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│ ├── mod.rs
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│ ├── activate.rs
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│ ├── license.rs
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│ └── heartbeat.rs
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│
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├── provider_selfhosted/ # ★ 本次核心交付
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│ ├── mod.rs # SelfHostedProvider impl Provider
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│ ├── activate.rs # HTTPS POST → webhook:8081
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│ ├── license.rs # 验签 + 解密 + 离线校验
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│ ├── heartbeat.rs # HTTPS 心跳 + 租约续期
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│ ├── protocol.rs # 请求/响应序列化
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│ └── cache.rs # 许可证本地加密存储
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│
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├── device.rs # ★ 硬件指纹分层采集
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├── crypto.rs # ★ HKDF + AES-256-GCM + RSA 验签
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├── session.rs # 泛化 session(去 bit_handle)
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├── error.rs # 自研 + 比特错误码体系
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│
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└── security/ # 不变
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├── mod.rs
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├── anti_debug.rs
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├── integrity.rs
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├── obfuscation.rs
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└── string_encrypt.rs
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```
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### 2.3 Provider trait 契约
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```rust
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pub trait Provider: Send + Sync {
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fn initialize(&mut self, ctx: &CraftContext, config: &AuthConfig)
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-> Result<(), LicenseError>;
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fn activate(&self, ctx: &CraftContext, license_key: &str)
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-> Result<ActivateResponse, LicenseError>;
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fn check_license(&self, ctx: &CraftContext)
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-> Result<LicenseStatus, LicenseError>;
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fn heartbeat(&self, ctx: &CraftContext)
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-> Result<HeartbeatResponse, LicenseError>;
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fn has_feature(&self, ctx: &CraftContext, name: &str) -> bool;
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fn release(&mut self, ctx: &CraftContext) -> Result<(), LicenseError>;
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fn get_license_info(&self, ctx: &CraftContext) -> LicenseInfoFFI;
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fn close(&mut self);
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}
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```
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### 2.4 Java 层变更
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| 模块 | 变更 |
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|------|------|
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| `craftlabs-auth-core` | 接口不变;`SelfhostedConfigSection` 扩展 `offlineGraceDays`、`heartbeatIntervalHours` 等字段;`FeatureMapping` 扩展 `selfhostedFeatureKey` |
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| `craftlabs-auth-bitanswer` | **不变**(双线共存) |
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| `craftlabs-auth-selfhosted` | 从桩改为真实实现:`System.loadLibrary("craftlabs_auth_core")` |
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| `craftlabs-auth-tests` | 新增 `SelfHostedProviderTest`、`MultiProviderSmokeTest` |
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### 2.5 关键架构约束
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- **单一 cdylib**:`craftlabs_auth_core` 包含所有 provider,通过 trait 路由
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- **Java 侧无感知**:各 AuthProvider 均调 NativeBridge,路由在 Rust 层完成
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- **双线 classpath 隔离**:BitAnswer 和 SelfHosted 不同 Maven 模块
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- **契约不变**:AuthProvider 接口 7 方法不变、AuthConfig record 不变
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- **Schema 兼容**:selfhosted 段向后兼容扩展新字段
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---
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## 3. 许可证协议与数据模型
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### 3.1 License JSON 结构
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```jsonc
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{
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"version": 1,
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"license_id": "01JQXYZ...", // ULID
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"issued_at": "2026-05-18T10:00:00Z",
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// 载荷:AES-256-GCM 加密后的 Base64 密文
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// 解密后为 LicensePayload:{ tenant_id, product, grant, constraints, features, custom }
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"payload": "A8f3Kd9s...base64url...",
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"signature": {
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"algorithm": "RS256",
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"key_id": "kp_2026_q2", // 支持密钥轮换
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"value": "MEUCIQDx..." // RS256 签名(对密文 payload 签名)
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}
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}
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```
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### 3.2 LicensePayload(解密后明文)
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```jsonc
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{
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"tenant_id": "craftlabs-wharf-prod",
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"product": "wharf-inspection-v2",
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"grant": {
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"type": "perpetual", // perpetual | subscription | trial
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"not_before": "2026-05-01T00:00:00Z",
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"not_after": "2027-05-01T00:00:00Z",
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"offline_grace_days": 7,
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"heartbeat_interval_hours": 24
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},
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"constraints": {
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"max_devices": 5,
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"max_concurrent_users": 0, // 0=不限制
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"max_activations": 0
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},
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"features": {
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"advanced_analytics": true,
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"real_time_monitor": false,
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"api_export": true
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},
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"custom": { // 扩展字段
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"contract_ref": "CT-2026-0042",
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"project_id": "wharf-nansha-phase2"
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}
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}
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```
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### 3.3 签发与校验流程
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```
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签发(服务器侧):
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LicensePayload 明文
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→ AES-256-GCM 加密(key = HKDF(编译期盐, license_id))
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→ 密文 payload (Base64)
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→ RSA-SHA256 签名(对密文签名)
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→ 完整 license.json
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校验(Rust SDK 侧):
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license.json
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→ RSA 公钥验签(快速排除伪造)
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→ HKDF 派生 AES 密钥
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→ AES-256-GCM 解密
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→ 时间窗口校验(not_before ≤ now ≤ not_after + 离线宽限期)
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→ 特性/约束校验
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```
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### 3.4 在线交互协议
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端点:`license-webhook-ingress:8081/license/v1/*`
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| 端点 | 方法 | 请求体 | 成功响应 | 错误响应 |
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|------|------|--------|----------|----------|
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| `/activate` | POST | `{license_key, device_fingerprint}` | 200 `{status:"activated", device_id, license_payload}` | 409 终端满 / 403 已吊销 / 422 无效 |
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| `/heartbeat` | POST | `{license_key, device_hash, local_time}` | 200 `{status:"ok", lease_renewed_until}` | 410 已过期/吊销 |
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| `/check` | POST | `{license_key, device_hash}` | 200 `{status:"valid", features, not_after}` | 410 已过期/吊销 |
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| `/release` | POST | `{license_key, device_hash}` | 200 `{status:"released"}` | — |
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**防重放**:每个请求携带 `X-Craft-Nonce`、`X-Craft-Timestamp`、`X-Craft-Signature`(HMAC-SHA256),服务器时间窗口 5 分钟 + Nonce 去重。
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### 3.5 签发端点(API 侧)
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```
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POST /api/v1/licenses # 创建/签发许可证
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GET /api/v1/licenses # 分页查询
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GET /api/v1/licenses/{licenseId} # 详情
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POST /api/v1/licenses/{id}/revoke # 吊销
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GET /api/v1/licenses/{id}/activations # 激活记录
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POST /api/v1/licenses/{id}/activations/{aid}/release # 释放设备
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```
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### 3.6 数据库表(新增)
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| 表 | 用途 |
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|----|------|
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| `platform_licenses` | 许可证主表(license_id、有效期、约束、状态、签名快照) |
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| `platform_license_features` | 特性开关(license_id, feature_key, enabled) |
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| `platform_license_activations` | 终端激活记录(license_id, device_hash, stability_score, status) |
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| `platform_license_heartbeats` | 心跳审计(可选,视量级) |
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| `platform_license_keys` | RSA 密钥对管理(key_id, public_key, private_key) |
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| `platform_license_policies` | 策略模板(默认有效期、终端数、特性等) |
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---
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## 4. Rust 层核心逻辑
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### 4.1 新增依赖
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```toml
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reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
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rsa = { version = "0.9", features = ["sha2"] }
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aes-gcm = "0.10"
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hkdf = "0.12"
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base64 = "0.22"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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chrono = { version = "0.4", features = ["serde"] }
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```
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### 4.2 关键数据结构
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```rust
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pub struct DeviceFingerprint {
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pub composite_hash: String, // SHA-256(layer1|layer2|layer3|layer4)
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pub stability_score: u8, // 0~100,影响匹配策略
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pub layers: Vec<FingerprintLayer>,
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}
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pub struct LicenseStatus {
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pub licensed: bool,
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pub not_after: Option<i64>,
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pub features: HashMap<String, bool>,
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pub device_count: u32,
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pub max_devices: u32,
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pub heartbeat_due: Option<i64>,
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}
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```
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### 4.3 硬件指纹分层采集
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| 层级 | 权重 | 来源 |
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|------|------|------|
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| Layer 1 硬件 | 40 | Linux: DMI product_uuid / Windows: SMBIOS UUID / macOS: IOPlatformUUID |
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| Layer 2 OS | 30 | Linux: /etc/machine-id / Windows: MachineGuid / macOS: 同 L1 |
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| Layer 3 存储 | 20 | 根文件系统 UUID (blkid/VolumeSerialNumber) |
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| Layer 4 网络 | 10 | 物理网卡 MAC(跳过 docker/tap/lo/veth) |
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**稳定度评分**:Layer1=有+Layer2=有 → 70(强指纹);仅 Layer2 有 → 40;仅 Layer4 → 10。
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**兜底**:稳定度 < 20 时,服务器分配 UUID 并加密存储到 `~/.craftlabs/device_id`,管理员可手动吊销释放配额。
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### 4.4 离线宽限期
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```rust
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fn check_license离线(&self) -> Result<LicenseStatus, LicenseError> {
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// 1. 加载缓存许可证
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// 2. 检查距离上次在线心跳的天数
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// 3. 超过 offline_grace_days → OfflineGraceExceeded
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// 4. 未超过 → 时间窗口校验(not_before/not_after)
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// 5. 返回 LicenseStatus(device_count=0 标记离线)
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}
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```
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### 4.5 错误码体系
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```rust
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pub enum LicenseError {
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// 通用
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Success, ConfigMissing, Network, NotInitialized,
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// 签名/加密
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InvalidFormat, InvalidSignature, SignatureMismatch, CryptoError,
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DecryptionFailed, CorruptedPayload, LicenseIdMismatch,
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// 许可状态
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NotYetValid, Expired, NoCachedLicense,
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OfflineGraceExceeded { days_offline, max_days },
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InvalidLicense, LicenseRevoked,
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DeviceLimitReached, ConcurrentUserLimitReached, ActivationLimitReached,
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// 兼容比特
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BitAnswerStatus(u32),
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UnknownStatus(u16),
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}
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```
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### 4.6 本地缓存
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||||
```
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||||
~/.craftlabs/
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||||
├── device_id # 硬件指纹或服务器 UUID
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||||
├── license_cache.json # AES-256-GCM 加密的许可证副本
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│ # 加密密钥 = SHA256(device_id + EMBEDDED_SALT)
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└── heartbeat_state.json # { last_heartbeat, lease_until }
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```
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### 4.7 编译期公钥嵌入
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||||
|
||||
`build.rs` 读取 `native/craft-core/embedded/pubkey.pem`,生成 `const EMBEDDED_PUBLIC_KEY: &str = "..."`,`crypto.rs` 在 `initialize` 时解析为 `RsaPublicKey`。
|
||||
|
||||
---
|
||||
|
||||
## 5. 平台后端变更
|
||||
|
||||
### 5.1 delivery-platform-api 新增模块
|
||||
|
||||
```
|
||||
license/
|
||||
├── LicenseController.java # REST /api/v1/licenses
|
||||
├── LicenseService.java # 签发/吊销/查询
|
||||
├── LicenseSigner.java # RSA+AES 签发
|
||||
└── LicenseKeyManager.java # 密钥对管理
|
||||
|
||||
persistence/license/
|
||||
├── PlatformLicense.java & Mapper
|
||||
├── PlatformLicenseFeature.java & Mapper
|
||||
├── PlatformLicenseActivation.java & Mapper
|
||||
├── PlatformLicenseKey.java & Mapper
|
||||
└── PlatformLicensePolicy.java & Mapper
|
||||
```
|
||||
|
||||
新增角色:`LICENSE_OPS`,管理 `/api/v1/licenses/**` 的写权限。
|
||||
|
||||
### 5.2 license-webhook-ingress 新增模块
|
||||
|
||||
```
|
||||
license/
|
||||
├── LicenseController.java # /license/v1/*
|
||||
├── LicenseActivateService.java # 激活 + 终端匹配
|
||||
├── LicenseHeartbeatService.java # 心跳 + 吊销检测
|
||||
├── LicenseCheckService.java # 在线校验
|
||||
├── LicenseReleaseService.java # 设备释放
|
||||
├── DeviceMatcher.java # 分层指纹匹配
|
||||
└── NonceValidator.java # 防重放
|
||||
```
|
||||
|
||||
### 5.3 事件回调
|
||||
|
||||
激活/心跳失败/到期/吊销等事件,沿现有 Webhook→API 异步投递链路通知 API 更新台账和审计。
|
||||
|
||||
---
|
||||
|
||||
## 6. 安全设计
|
||||
|
||||
### 6.1 许可证防篡改
|
||||
|
||||
| 措施 | 作用 |
|
||||
|------|------|
|
||||
| **载荷 AES-256-GCM 加密** | 阻止直接查看许可证内容(特性/期限/终端数),每个 license_id 独立密钥防批量破解 |
|
||||
| **密文 RSA-SHA256 签名** | 验签不通过 = 篡改,先行快速拒绝 |
|
||||
| **HKDF 密钥派生** | 盐编译期嵌入 + license_id,增加逆向提取难度 |
|
||||
| **公钥编译期嵌入** | 不在运行时从文件或网络加载,防替换攻击 |
|
||||
|
||||
### 6.2 SDK 在线交互安全
|
||||
|
||||
| 措施 | 说明 |
|
||||
|------|------|
|
||||
| **TLS** | 全链路 HTTPS,证书校验 |
|
||||
| **HMAC 签名** | 每个请求 X-Craft-Signature = HMAC-SHA256(nonce|ts|method|path|body, tenantKey) |
|
||||
| **Nonce 去重** | Redis SETNX + 时间窗口 5 分钟,防重放 |
|
||||
| **Authorization 头** | Bearer tenantKey 双向验证 |
|
||||
|
||||
### 6.3 运行时保护
|
||||
|
||||
Rust 侧复用现有 `security/` 模块:反调试检测、完整性校验、字符串混淆,适配自研路径。
|
||||
|
||||
---
|
||||
|
||||
## 7. 实施阶段
|
||||
|
||||
### Phase 1:离线核心
|
||||
**目标**:管理员签发 → 文件交付 → SDK 本地验签解密
|
||||
|
||||
- Rust: crypto.rs、license.rs、cache.rs、device.rs、error.rs
|
||||
- Java: SelfhostedConfigSection 扩展字段
|
||||
- 平台: 数据库迁移、LicenseSigner、LicenseController(签发/查询/吊销)
|
||||
- 验证: AES 往返测试、RSA 验签测试、过期拒绝测试
|
||||
|
||||
### Phase 2:在线激活
|
||||
**目标**:SDK 网络激活获取许可证,终端配额限制
|
||||
|
||||
- Rust: activate.rs、protocol.rs、trait_provider.rs、reqwest 集成
|
||||
- Webhook: LicenseController、ActivateService、DeviceMatcher、NonceValidator
|
||||
- 平台: 终端释放端点
|
||||
- 验证: Mock HTTP 测试、终端满 409 测试
|
||||
|
||||
### Phase 3:心跳 + 离线兜底
|
||||
**目标**:心跳维持租约、离线宽限期降级、吊销远程生效
|
||||
|
||||
- Rust: heartbeat.rs、check_license 离线逻辑
|
||||
- Webhook: HeartbeatService、CheckService、ReleaseService
|
||||
- 验证: 心跳成功更新租约、断网 8 天 OfflineGraceExceeded、吊销后 410
|
||||
|
||||
### Phase 4:完善与生产加固
|
||||
**目标**:双 Provider 切换、CI/CD、文档
|
||||
|
||||
- Rust: build.rs 公钥嵌入、security 模块适配
|
||||
- Java: MultiProviderSmokeTest、SelfHostedProviderTest
|
||||
- CI: ci-native.yml 适配、ci-platform.yml 新增
|
||||
- 文档: 集成指南、操作手册、CHANGELOG
|
||||
|
||||
### 工作量估算
|
||||
|
||||
| Phase | Rust | Java SDK | Platform API | Webhook | 合计 |
|
||||
|-------|------|----------|-------------|---------|------|
|
||||
| P1 | M | S | M | — | M~L |
|
||||
| P2 | M | — | S | M | M |
|
||||
| P3 | S | — | — | M | M |
|
||||
| P4 | S | S | — | — | S |
|
||||
|
||||
(S=小,M=中,L=大)
|
||||
Reference in New Issue
Block a user