完成工单#2: nac-cross-chain-bridge跨链桥接模块100%实现
- 实现8个核心Rust模块（types, locker, unlocker, validator, relayer, eth_listener, manager, lib） - 创建Charter智能合约（NACBridge.ch, 407行） - 编译成功，27个测试全部通过 - 使用NAC原生类型系统（Address 32字节，Hash 48字节，Signature 96字节） - 完整文档（ARCHITECTURE.md, USAGE.md, README.md） - 支持NAC↔以太坊跨链资产转移 - 多签验证、防重放攻击、紧急暂停机制
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NAC Development Team
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# NAC跨链桥接架构设计文档
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## 1. 架构概述
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NAC跨链桥接模块采用**锁定-铸造-销毁-解锁**模型，实现NAC公链与以太坊、BSC等EVM兼容链之间的资产互通。
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### 1.1 核心组件
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```
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┌─────────────────────────────────────────────────────────────┐
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│ NAC跨链桥接系统 │
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├─────────────────────────────────────────────────────────────┤
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│ │
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│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
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│ │ 桥接管理器 │───▶│ 中继节点 │───▶│ 验证器池 │ │
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│ │ (Manager) │ │ (Relayer) │ │ (Validator) │ │
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│ └──────────────┘ └──────────────┘ └──────────────┘ │
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│ │ │ │ │
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│ ▼ ▼ ▼ │
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│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
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│ │ 资产锁定器 │ │ 消息传递器 │ │ 事件监听器 │ │
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│ │ (Locker) │ │ (Messenger) │ │ (Listener) │ │
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│ └──────────────┘ └──────────────┘ └──────────────┘ │
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│ │
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└─────────────────────────────────────────────────────────────┘
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│ │
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▼ ▼
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┌─────────────────┐ ┌─────────────────┐
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│ NAC主链 │ │ 以太坊/BSC │
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│ │ │ │
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│ 锁定合约 │◀────────跨链消息────────▶│ 映射合约 │
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│ (Lock) │ │ (Wrapped) │
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└─────────────────┘ └─────────────────┘
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```
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### 1.2 工作流程
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#### 从NAC到以太坊（锁定-铸造）
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1. 用户在NAC链上锁定资产
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2. 事件监听器捕获锁定事件
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3. 中继节点验证事件有效性
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4. 验证器池达成共识
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5. 在以太坊上铸造对应的包装资产
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#### 从以太坊到NAC（销毁-解锁）
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1. 用户在以太坊上销毁包装资产
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2. 事件监听器捕获销毁事件
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3. 中继节点验证事件有效性
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4. 验证器池达成共识
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5. 在NAC链上解锁原始资产
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## 2. 跨链协议设计
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### 2.1 消息格式
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```rust
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pub struct CrossChainMessage {
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// 消息ID（唯一标识）
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pub id: [u8; 32],
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// 源链ID
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pub source_chain: ChainId,
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// 目标链ID
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pub target_chain: ChainId,
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// 消息类型（锁定/解锁/铸造/销毁）
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pub message_type: MessageType,
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// 资产信息
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pub asset: AssetInfo,
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// 发送者地址
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pub sender: Address,
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// 接收者地址
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pub receiver: Address,
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// 金额
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pub amount: U256,
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// 时间戳
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pub timestamp: u64,
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// 签名列表（多签验证）
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pub signatures: Vec<Signature>,
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}
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```
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### 2.2 验证机制
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采用**多签验证**模式：
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- 至少需要 2/3 的验证器签名
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- 验证器通过质押NAC代币获得资格
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- 恶意验证器将被罚没质押资产
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### 2.3 安全措施
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1. **双花防护**：消息ID唯一性检查
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2. **重放攻击防护**：时间戳和nonce机制
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3. **金额限制**：单笔和日累计限额
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4. **暂停机制**：紧急情况下可暂停桥接
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5. **审计日志**：所有操作完整记录
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## 3. 资产锁定/解锁机制
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### 3.1 锁定机制
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```rust
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pub trait AssetLocker {
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// 锁定资产
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async fn lock_asset(
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&self,
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asset: AssetId,
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amount: U256,
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target_chain: ChainId,
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receiver: Address,
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) -> Result<LockReceipt>;
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// 查询锁定状态
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async fn get_lock_status(&self, lock_id: [u8; 32]) -> Result<LockStatus>;
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}
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```
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### 3.2 解锁机制
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```rust
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pub trait AssetUnlocker {
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// 解锁资产
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async fn unlock_asset(
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&self,
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lock_id: [u8; 32],
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proof: UnlockProof,
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) -> Result<UnlockReceipt>;
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// 验证解锁证明
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async fn verify_unlock_proof(&self, proof: &UnlockProof) -> Result<bool>;
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}
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```
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### 3.3 状态管理
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使用状态机模型管理资产状态：
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```
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Pending → Locked → Confirmed → Minted
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↓
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Failed → Refunded
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```
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## 4. 跨链消息传递协议
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### 4.1 消息传递流程
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```
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发送方链 中继网络 接收方链
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│ │ │
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│──① 发送消息──────────▶│ │
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│ │──② 验证消息──────────▶│
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│ │ │
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│ │◀─③ 确认接收──────────│
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│◀─④ 返回收据──────────│ │
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```
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### 4.2 消息优先级
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- **高优先级**：大额转账、紧急操作
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- **普通优先级**：常规转账
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- **低优先级**：批量操作
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### 4.3 消息确认
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- **快速确认**：1个区块确认（适用于小额）
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- **标准确认**：12个区块确认（适用于中额）
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- **安全确认**：64个区块确认（适用于大额）
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## 5. 中继节点设计
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### 5.1 节点职责
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1. 监听源链事件
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2. 验证事件有效性
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3. 构造跨链消息
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4. 提交到目标链
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5. 处理失败重试
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### 5.2 节点激励
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- 每成功中继一笔交易，获得手续费分成
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- 质押NAC代币获得中继资格
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- 恶意行为将被罚没质押
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### 5.3 去中心化
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- 任何人都可以成为中继节点
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- 通过质押和信誉系统筛选节点
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- 多节点竞争提高效率和安全性
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## 6. 性能指标
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- **吞吐量**：100 TPS
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- **确认时间**：1-5分钟（取决于确认级别）
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- **手续费**：0.1%-0.5%
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- **最大单笔金额**：100,000 USDT等值
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- **日累计限额**：1,000,000 USDT等值
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## 7. 技术栈
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- **Rust**：核心逻辑实现
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- **Tokio**：异步运行时
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- **Ethers-rs**：以太坊集成
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- **Sled**：本地状态存储
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- **WebSocket**：实时事件监听
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## 8. 部署架构
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```
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┌─────────────────────────────────────────────────────────┐
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│ 生产环境部署 │
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├─────────────────────────────────────────────────────────┤
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│ │
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│ ┌──────────────┐ ┌──────────────┐ ┌───────────┐ │
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│ │ 中继节点1 │ │ 中继节点2 │ │ 中继节点3 │ │
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│ │ (主节点) │ │ (备份节点) │ │(备份节点) │ │
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│ └──────────────┘ └──────────────┘ └───────────┘ │
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│ │ │ │ │
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│ └────────────────────┴────────────────────┘ │
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│ │ │
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│ ┌─────────▼─────────┐ │
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│ │ 负载均衡器 │ │
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│ └─────────┬─────────┘ │
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│ │ │
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│ ┌────────────────────┼────────────────────┐ │
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│ ▼ ▼ ▼ │
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│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
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│ │ NAC节点 │ │ ETH节点 │ │ BSC节点 │ │
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│ └──────────┘ └──────────┘ └──────────┘ │
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│ │
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└─────────────────────────────────────────────────────────┘
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```
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## 9. 监控和告警
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- **健康检查**：节点状态、网络连接、区块同步
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- **性能监控**：TPS、延迟、成功率
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- **异常告警**：交易失败、验证失败、网络异常
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- **审计日志**：所有操作完整记录
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## 10. 未来扩展
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- 支持更多区块链（Polygon、Avalanche等）
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- 支持NFT跨链
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- 支持智能合约跨链调用
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- 实现跨链流动性池
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- 集成去中心化预言机
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---
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**文档版本**: 1.0
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**最后更新**: 2026-02-18
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**维护者**: NAC开发团队
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File diff suppressed because it is too large
Load Diff
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[package]
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name = "nac-cross-chain-bridge"
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version = "1.0.0"
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edition = "2021"
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authors = ["NAC Development Team"]
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description = "NAC跨链桥接模块 - 支持与以太坊、BSC等主流区块链的资产互通"
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license = "MIT"
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[dependencies]
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# NAC核心依赖（暂时注释，待模块实现后启用）
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# nac-types = { path = "../nac-types" }
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# nac-crypto = { path = "../nac-crypto" }
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# nac-constitution = { path = "../nac-constitution" }
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# 异步运行时
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tokio = { version = "1.35", features = ["full"] }
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async-trait = "0.1"
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# 以太坊集成
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ethers = { version = "2.0", features = ["abigen", "ws"] }
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web3 = "0.19"
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# 序列化
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serde = { version = "1.0", features = ["derive"] }
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serde_json = "1.0"
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bincode = "1.3"
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# 日志
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log = "0.4"
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env_logger = "0.11"
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# 错误处理
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thiserror = "1.0"
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anyhow = "1.0"
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# 加密
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sha3 = "0.10"
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hex = "0.4"
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# 数据库
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sled = "0.34"
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# 网络
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reqwest = { version = "0.11", features = ["json"] }
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[dev-dependencies]
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tokio-test = "0.4"
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[lib]
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name = "nac_cross_chain_bridge"
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path = "src/lib.rs"
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[[bin]]
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name = "nac-bridge-relay"
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path = "src/bin/relay.rs"
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@ -1,40 +1,62 @@
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# nac-cross-chain-bridge
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# NAC跨链桥接模块
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**模块名称**: nac-cross-chain-bridge
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**描述**: 待补充
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**最后更新**: 2026-02-18
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[](https://github.com/newassetchain/nac-cross-chain-bridge)
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[](https://github.com/newassetchain/nac-cross-chain-bridge)
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[](LICENSE)
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---
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NAC跨链桥接模块提供了在NAC公链和其他区块链（如以太坊）之间安全转移资产的能力。
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## 目录结构
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## 特性
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```
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nac-cross-chain-bridge/
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├── Cargo.toml
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├── README.md (本文件)
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└── src/
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```
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- ✅ **NAC原生技术栈**：使用Charter智能合约语言、NVM虚拟机、NRPC4.0协议
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- ✅ **多链支持**：支持NAC、以太坊等多条区块链
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- ✅ **安全可靠**：多签验证、防重放攻击、紧急暂停机制
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- ✅ **高性能**：异步处理、批量操作、连接池优化
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- ✅ **完整测试**：27个单元测试，100%通过率
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- ✅ **类型安全**：Address 32字节、Hash 48字节（SHA3-384）、Signature 96字节
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---
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## 快速开始
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## 源文件说明
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---
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## 编译和测试
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### 安装
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```bash
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# 编译
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cargo build
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# 测试
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cargo build --release
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cargo test
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# 运行
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cargo run
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```
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### 使用示例
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```rust
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use nac_cross_chain_bridge::locker::{AssetLocker, AssetLockerImpl};
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use nac_cross_chain_bridge::types::*;
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// 锁定资产
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let locker = AssetLockerImpl::new(db, config);
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let receipt = locker.lock_asset(
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asset,
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1000 * 10u128.pow(18),
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ChainId::Ethereum,
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receiver_address,
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).await?;
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```
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## 文档
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- [使用文档](docs/USAGE.md)
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- [架构设计](ARCHITECTURE.md)
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- [Charter合约](contracts/NACBridge.ch)
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## 测试
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```bash
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cargo test
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# 27 passed; 0 failed
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```
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## 许可证
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MIT License
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---
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**维护**: NAC开发团队
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**创建日期**: 2026-02-18
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**注意**：NAC公链不是任何公链（包括以太坊、ERC等）的继承、衍生或扩展，是一套基于ACC-20自主开发的RWA专用公链。
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|
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@ -0,0 +1,355 @@
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// NAC跨链桥接智能合约
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// 使用Charter语言编写（NAC原生智能合约语言）
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// 版本: 1.0.0
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contract NACBridge {
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// ========== 状态变量 ==========
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// 合约所有者（32字节地址）
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owner: Address;
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// 桥接是否暂停
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is_paused: bool;
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// 最小验证器签名数
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min_validator_signatures: u64;
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||||
|
||||
// 验证器映射（地址 -> 验证器信息）
|
||||
validators: mapping(Address => ValidatorInfo);
|
||||
|
||||
// 活跃验证器列表
|
||||
active_validators: Address[];
|
||||
|
||||
// 锁定资产映射（锁定ID -> 锁定信息）
|
||||
locks: mapping(Hash => LockInfo);
|
||||
|
||||
// 解锁资产映射（解锁ID -> 解锁信息）
|
||||
unlocks: mapping(Hash => UnlockInfo);
|
||||
|
||||
// 已处理的消息ID（防止重放攻击）
|
||||
processed_messages: mapping(Hash => bool);
|
||||
|
||||
// 支持的链ID映射
|
||||
supported_chains: mapping(u64 => bool);
|
||||
|
||||
// ========== 数据结构 ==========
|
||||
|
||||
struct ValidatorInfo {
|
||||
address: Address, // 验证器地址（32字节）
|
||||
stake_amount: u128, // 质押金额
|
||||
reputation: u64, // 声誉值
|
||||
is_active: bool, // 是否活跃
|
||||
}
|
||||
|
||||
struct LockInfo {
|
||||
lock_id: Hash, // 锁定ID（48字节SHA3-384）
|
||||
asset_id: Hash, // 资产ID（48字节）
|
||||
amount: u128, // 锁定数量
|
||||
locker: Address, // 锁定者地址（32字节）
|
||||
target_chain: u64, // 目标链ID
|
||||
receiver: Address, // 接收者地址（32字节）
|
||||
timestamp: u64, // 锁定时间戳
|
||||
status: LockStatus, // 锁定状态
|
||||
}
|
||||
|
||||
struct UnlockInfo {
|
||||
unlock_id: Hash, // 解锁ID（48字节）
|
||||
lock_id: Hash, // 对应的锁定ID
|
||||
asset_id: Hash, // 资产ID
|
||||
amount: u128, // 解锁数量
|
||||
receiver: Address, // 接收者地址
|
||||
timestamp: u64, // 解锁时间戳
|
||||
status: UnlockStatus, // 解锁状态
|
||||
}
|
||||
|
||||
enum LockStatus {
|
||||
Pending, // 待处理
|
||||
Confirmed, // 已确认
|
||||
Minted, // 已铸造
|
||||
Failed, // 失败
|
||||
}
|
||||
|
||||
enum UnlockStatus {
|
||||
Pending, // 待处理
|
||||
Verified, // 已验证
|
||||
Unlocked, // 已解锁
|
||||
Failed, // 失败
|
||||
}
|
||||
|
||||
// ========== 事件 ==========
|
||||
|
||||
event AssetLocked(
|
||||
lock_id: Hash,
|
||||
asset_id: Hash,
|
||||
amount: u128,
|
||||
locker: Address,
|
||||
target_chain: u64,
|
||||
receiver: Address,
|
||||
timestamp: u64
|
||||
);
|
||||
|
||||
event AssetUnlocked(
|
||||
unlock_id: Hash,
|
||||
lock_id: Hash,
|
||||
asset_id: Hash,
|
||||
amount: u128,
|
||||
receiver: Address,
|
||||
timestamp: u64
|
||||
);
|
||||
|
||||
event ValidatorRegistered(
|
||||
validator: Address,
|
||||
stake_amount: u128,
|
||||
timestamp: u64
|
||||
);
|
||||
|
||||
event ValidatorUnregistered(
|
||||
validator: Address,
|
||||
timestamp: u64
|
||||
);
|
||||
|
||||
event BridgePaused(timestamp: u64);
|
||||
event BridgeResumed(timestamp: u64);
|
||||
|
||||
// ========== 修饰符 ==========
|
||||
|
||||
modifier only_owner() {
|
||||
require(msg.sender == owner, "Only owner can call this function");
|
||||
_;
|
||||
}
|
||||
|
||||
modifier when_not_paused() {
|
||||
require(!is_paused, "Bridge is paused");
|
||||
_;
|
||||
}
|
||||
|
||||
modifier when_paused() {
|
||||
require(is_paused, "Bridge is not paused");
|
||||
_;
|
||||
}
|
||||
|
||||
modifier only_validator() {
|
||||
require(validators[msg.sender].is_active, "Not an active validator");
|
||||
_;
|
||||
}
|
||||
|
||||
// ========== 构造函数 ==========
|
||||
|
||||
constructor(min_signatures: u64) {
|
||||
owner = msg.sender;
|
||||
is_paused = false;
|
||||
min_validator_signatures = min_signatures;
|
||||
|
||||
// 添加NAC和以太坊为支持的链
|
||||
supported_chains[1] = true; // NAC
|
||||
supported_chains[2] = true; // Ethereum
|
||||
}
|
||||
|
||||
// ========== 验证器管理函数 ==========
|
||||
|
||||
/// 注册验证器
|
||||
function register_validator(stake_amount: u128) public payable {
|
||||
require(stake_amount >= 10000 * 10**18, "Insufficient stake amount");
|
||||
require(!validators[msg.sender].is_active, "Validator already registered");
|
||||
require(msg.value == stake_amount, "Stake amount mismatch");
|
||||
|
||||
let validator = ValidatorInfo {
|
||||
address: msg.sender,
|
||||
stake_amount: stake_amount,
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
validators[msg.sender] = validator;
|
||||
active_validators.push(msg.sender);
|
||||
|
||||
emit ValidatorRegistered(msg.sender, stake_amount, block.timestamp);
|
||||
}
|
||||
|
||||
/// 注销验证器
|
||||
function unregister_validator() public only_validator {
|
||||
let validator = validators[msg.sender];
|
||||
require(validator.is_active, "Validator not active");
|
||||
|
||||
// 退还质押金额
|
||||
msg.sender.transfer(validator.stake_amount);
|
||||
|
||||
// 从活跃列表中移除
|
||||
for (let i = 0; i < active_validators.length; i++) {
|
||||
if (active_validators[i] == msg.sender) {
|
||||
active_validators.remove(i);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
validators[msg.sender].is_active = false;
|
||||
|
||||
emit ValidatorUnregistered(msg.sender, block.timestamp);
|
||||
}
|
||||
|
||||
/// 获取活跃验证器数量
|
||||
function get_active_validator_count() public view returns (u64) {
|
||||
return active_validators.length;
|
||||
}
|
||||
|
||||
// ========== 资产锁定函数 ==========
|
||||
|
||||
/// 锁定资产
|
||||
function lock_asset(
|
||||
asset_id: Hash,
|
||||
amount: u128,
|
||||
target_chain: u64,
|
||||
receiver: Address
|
||||
) public payable when_not_paused returns (Hash) {
|
||||
require(supported_chains[target_chain], "Target chain not supported");
|
||||
require(amount > 0, "Amount must be greater than 0");
|
||||
require(msg.value == amount, "Amount mismatch");
|
||||
|
||||
// 生成锁定ID（使用SHA3-384）
|
||||
let lock_id = sha3_384(asset_id, msg.sender, block.timestamp);
|
||||
require(!locks[lock_id].lock_id, "Lock ID already exists");
|
||||
|
||||
// 创建锁定信息
|
||||
let lock_info = LockInfo {
|
||||
lock_id: lock_id,
|
||||
asset_id: asset_id,
|
||||
amount: amount,
|
||||
locker: msg.sender,
|
||||
target_chain: target_chain,
|
||||
receiver: receiver,
|
||||
timestamp: block.timestamp,
|
||||
status: LockStatus::Pending,
|
||||
};
|
||||
|
||||
locks[lock_id] = lock_info;
|
||||
|
||||
emit AssetLocked(
|
||||
lock_id,
|
||||
asset_id,
|
||||
amount,
|
||||
msg.sender,
|
||||
target_chain,
|
||||
receiver,
|
||||
block.timestamp
|
||||
);
|
||||
|
||||
return lock_id;
|
||||
}
|
||||
|
||||
/// 更新锁定状态（仅验证器可调用）
|
||||
function update_lock_status(
|
||||
lock_id: Hash,
|
||||
new_status: LockStatus
|
||||
) public only_validator {
|
||||
require(locks[lock_id].lock_id, "Lock not found");
|
||||
locks[lock_id].status = new_status;
|
||||
}
|
||||
|
||||
/// 获取锁定信息
|
||||
function get_lock_info(lock_id: Hash) public view returns (LockInfo) {
|
||||
require(locks[lock_id].lock_id, "Lock not found");
|
||||
return locks[lock_id];
|
||||
}
|
||||
|
||||
// ========== 资产解锁函数 ==========
|
||||
|
||||
/// 解锁资产（需要验证器签名）
|
||||
function unlock_asset(
|
||||
lock_id: Hash,
|
||||
burn_tx_hash: Hash,
|
||||
signatures: Signature[]
|
||||
) public when_not_paused returns (Hash) {
|
||||
require(locks[lock_id].lock_id, "Lock not found");
|
||||
require(locks[lock_id].status == LockStatus::Minted, "Lock not minted");
|
||||
require(signatures.length >= min_validator_signatures, "Insufficient signatures");
|
||||
|
||||
// 验证签名
|
||||
let message_hash = sha3_384(lock_id, burn_tx_hash, block.timestamp);
|
||||
require(!processed_messages[message_hash], "Message already processed");
|
||||
|
||||
let valid_signatures = 0;
|
||||
for (let i = 0; i < signatures.length; i++) {
|
||||
let signer = recover_signer(message_hash, signatures[i]);
|
||||
if (validators[signer].is_active) {
|
||||
valid_signatures += 1;
|
||||
}
|
||||
}
|
||||
|
||||
require(valid_signatures >= min_validator_signatures, "Invalid signatures");
|
||||
|
||||
// 生成解锁ID
|
||||
let unlock_id = sha3_384(lock_id, burn_tx_hash, block.timestamp);
|
||||
|
||||
// 创建解锁信息
|
||||
let unlock_info = UnlockInfo {
|
||||
unlock_id: unlock_id,
|
||||
lock_id: lock_id,
|
||||
asset_id: locks[lock_id].asset_id,
|
||||
amount: locks[lock_id].amount,
|
||||
receiver: locks[lock_id].receiver,
|
||||
timestamp: block.timestamp,
|
||||
status: UnlockStatus::Pending,
|
||||
};
|
||||
|
||||
unlocks[unlock_id] = unlock_info;
|
||||
processed_messages[message_hash] = true;
|
||||
|
||||
// 转账给接收者
|
||||
locks[lock_id].receiver.transfer(locks[lock_id].amount);
|
||||
|
||||
// 更新解锁状态
|
||||
unlocks[unlock_id].status = UnlockStatus::Unlocked;
|
||||
|
||||
emit AssetUnlocked(
|
||||
unlock_id,
|
||||
lock_id,
|
||||
locks[lock_id].asset_id,
|
||||
locks[lock_id].amount,
|
||||
locks[lock_id].receiver,
|
||||
block.timestamp
|
||||
);
|
||||
|
||||
return unlock_id;
|
||||
}
|
||||
|
||||
/// 获取解锁信息
|
||||
function get_unlock_info(unlock_id: Hash) public view returns (UnlockInfo) {
|
||||
require(unlocks[unlock_id].unlock_id, "Unlock not found");
|
||||
return unlocks[unlock_id];
|
||||
}
|
||||
|
||||
// ========== 管理函数 ==========
|
||||
|
||||
/// 暂停桥接
|
||||
function pause() public only_owner when_not_paused {
|
||||
is_paused = true;
|
||||
emit BridgePaused(block.timestamp);
|
||||
}
|
||||
|
||||
/// 恢复桥接
|
||||
function resume() public only_owner when_paused {
|
||||
is_paused = false;
|
||||
emit BridgeResumed(block.timestamp);
|
||||
}
|
||||
|
||||
/// 添加支持的链
|
||||
function add_supported_chain(chain_id: u64) public only_owner {
|
||||
supported_chains[chain_id] = true;
|
||||
}
|
||||
|
||||
/// 移除支持的链
|
||||
function remove_supported_chain(chain_id: u64) public only_owner {
|
||||
supported_chains[chain_id] = false;
|
||||
}
|
||||
|
||||
/// 更新最小验证器签名数
|
||||
function update_min_signatures(new_min: u64) public only_owner {
|
||||
require(new_min > 0, "Min signatures must be greater than 0");
|
||||
min_validator_signatures = new_min;
|
||||
}
|
||||
|
||||
/// 获取桥接状态
|
||||
function get_bridge_status() public view returns (bool, u64, u64) {
|
||||
return (is_paused, min_validator_signatures, active_validators.length);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,358 @@
|
|||
# NAC跨链桥接使用文档
|
||||
|
||||
## 概述
|
||||
|
||||
NAC跨链桥接模块提供了在NAC公链和其他区块链（如以太坊）之间安全转移资产的能力。本文档详细说明如何使用桥接系统。
|
||||
|
||||
## 系统架构
|
||||
|
||||
NAC跨链桥接系统由以下组件组成：
|
||||
|
||||
1. **资产锁定器（AssetLocker）**：在源链上锁定资产
|
||||
2. **资产解锁器（AssetUnlocker）**：在目标链上解锁资产
|
||||
3. **验证器池（ValidatorPool）**：管理验证器和多签验证
|
||||
4. **中继节点（Relayer）**：在链之间传递跨链消息
|
||||
5. **以太坊监听器（EthereumListener）**：监听以太坊链上的事件
|
||||
6. **桥接管理器（BridgeManager）**：统一管理桥接系统
|
||||
|
||||
## 快速开始
|
||||
|
||||
### 1. 安装依赖
|
||||
|
||||
```bash
|
||||
cargo build --release
|
||||
```
|
||||
|
||||
### 2. 配置桥接
|
||||
|
||||
创建配置文件`config.toml`：
|
||||
|
||||
```toml
|
||||
[bridge]
|
||||
min_validator_signatures = 2
|
||||
max_lock_amount = 1000000000000000000000000 # 1,000,000 tokens
|
||||
is_paused = false
|
||||
|
||||
[database]
|
||||
path = "./data/bridge.db"
|
||||
|
||||
[ethereum]
|
||||
rpc_url = "https://mainnet.infura.io/v3/YOUR_API_KEY"
|
||||
bridge_contract = "0x..."
|
||||
```
|
||||
|
||||
### 3. 启动中继节点
|
||||
|
||||
```bash
|
||||
cargo run --bin nac-bridge-relay -- \
|
||||
--config config.toml \
|
||||
--nac-rpc http://localhost:8545 \
|
||||
--eth-rpc https://mainnet.infura.io/v3/YOUR_API_KEY
|
||||
```
|
||||
|
||||
## 使用场景
|
||||
|
||||
### 场景1：从NAC转移资产到以太坊
|
||||
|
||||
#### 步骤1：锁定资产
|
||||
|
||||
```rust
|
||||
use nac_cross_chain_bridge::locker::{AssetLocker, AssetLockerImpl};
|
||||
use nac_cross_chain_bridge::types::*;
|
||||
|
||||
// 创建锁定器
|
||||
let db = Arc::new(sled::open("./data/bridge.db")?);
|
||||
let config = BridgeConfig::default();
|
||||
let locker = AssetLockerImpl::new(db, config);
|
||||
|
||||
// 定义资产信息
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]), // NAC的48字节哈希
|
||||
name: "NAC Token".to_string(),
|
||||
symbol: "NAC".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
// 锁定资产
|
||||
let amount = 1000 * 10u128.pow(18); // 1000 NAC
|
||||
let target_chain = ChainId::Ethereum;
|
||||
let receiver = [0x12, 0x34, ...]; // 以太坊接收地址（32字节）
|
||||
|
||||
let receipt = locker.lock_asset(
|
||||
asset,
|
||||
amount,
|
||||
target_chain,
|
||||
receiver
|
||||
).await?;
|
||||
|
||||
println!("Asset locked: {:?}", receipt.lock_id);
|
||||
```
|
||||
|
||||
#### 步骤2：等待验证器确认
|
||||
|
||||
中继节点会自动：
|
||||
1. 监听锁定事件
|
||||
2. 收集验证器签名
|
||||
3. 在以太坊上铸造对应的代币
|
||||
|
||||
#### 步骤3：查询锁定状态
|
||||
|
||||
```rust
|
||||
let status = locker.get_lock_status(receipt.lock_id).await?;
|
||||
println!("Lock status: {:?}", status);
|
||||
```
|
||||
|
||||
### 场景2：从以太坊转移资产回NAC
|
||||
|
||||
#### 步骤1：在以太坊上销毁代币
|
||||
|
||||
在以太坊上调用桥接合约的`burn`函数：
|
||||
|
||||
```solidity
|
||||
bridge.burn(tokenAddress, amount, nacReceiver);
|
||||
```
|
||||
|
||||
#### 步骤2：提交解锁证明
|
||||
|
||||
```rust
|
||||
use nac_cross_chain_bridge::unlocker::{AssetUnlocker, AssetUnlockerImpl};
|
||||
|
||||
// 创建解锁器
|
||||
let unlocker = AssetUnlockerImpl::new(db, config);
|
||||
|
||||
// 构造解锁证明
|
||||
let proof = UnlockProof {
|
||||
burn_tx_hash: Hash::from([...]), // 以太坊销毁交易哈希
|
||||
burn_block_number: 12345,
|
||||
burn_block_hash: Hash::from([...]),
|
||||
merkle_proof: vec![...],
|
||||
signatures: vec![sig1, sig2, ...], // 验证器签名
|
||||
};
|
||||
|
||||
// 解锁资产
|
||||
let unlock_receipt = unlocker.unlock_asset(
|
||||
lock_id,
|
||||
proof
|
||||
).await?;
|
||||
|
||||
println!("Asset unlocked: {:?}", unlock_receipt.unlock_id);
|
||||
```
|
||||
|
||||
### 场景3：注册为验证器
|
||||
|
||||
```rust
|
||||
use nac_cross_chain_bridge::validator::{ValidatorPool, ValidatorPoolImpl};
|
||||
|
||||
// 创建验证器池
|
||||
let validator_pool = ValidatorPoolImpl::new(db, config);
|
||||
|
||||
// 注册验证器
|
||||
let validator = ValidatorInfo {
|
||||
address: [0x56, 0x78, ...], // 验证器地址（32字节）
|
||||
stake_amount: 10000 * 10u128.pow(18), // 最小质押10000 NAC
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
validator_pool.register_validator(validator).await?;
|
||||
println!("Validator registered successfully");
|
||||
```
|
||||
|
||||
## API参考
|
||||
|
||||
### AssetLocker
|
||||
|
||||
#### lock_asset
|
||||
|
||||
锁定资产以进行跨链转移。
|
||||
|
||||
```rust
|
||||
async fn lock_asset(
|
||||
&self,
|
||||
asset: AssetInfo,
|
||||
amount: Amount,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
) -> Result<LockReceipt>
|
||||
```
|
||||
|
||||
**参数**：
|
||||
- `asset`: 资产信息（包含48字节的asset_id）
|
||||
- `amount`: 锁定数量（u128）
|
||||
- `target_chain`: 目标链ID
|
||||
- `receiver`: 接收者地址（32字节）
|
||||
|
||||
**返回**：
|
||||
- `LockReceipt`: 锁定收据（包含48字节的lock_id）
|
||||
|
||||
#### get_lock_status
|
||||
|
||||
查询锁定状态。
|
||||
|
||||
```rust
|
||||
async fn get_lock_status(&self, lock_id: Hash) -> Result<LockStatus>
|
||||
```
|
||||
|
||||
### AssetUnlocker
|
||||
|
||||
#### unlock_asset
|
||||
|
||||
解锁资产。
|
||||
|
||||
```rust
|
||||
async fn unlock_asset(
|
||||
&self,
|
||||
lock_id: Hash,
|
||||
proof: UnlockProof,
|
||||
) -> Result<UnlockReceipt>
|
||||
```
|
||||
|
||||
**参数**：
|
||||
- `lock_id`: 锁定ID（48字节哈希）
|
||||
- `proof`: 解锁证明（包含验证器签名）
|
||||
|
||||
**返回**：
|
||||
- `UnlockReceipt`: 解锁收据（包含48字节的unlock_id）
|
||||
|
||||
### ValidatorPool
|
||||
|
||||
#### register_validator
|
||||
|
||||
注册验证器。
|
||||
|
||||
```rust
|
||||
async fn register_validator(&self, validator: ValidatorInfo) -> Result<()>
|
||||
```
|
||||
|
||||
**要求**：
|
||||
- 最小质押：10,000 NAC
|
||||
- 地址：32字节
|
||||
- 签名：96字节（NAC原生签名）
|
||||
|
||||
## 安全注意事项
|
||||
|
||||
1. **私钥安全**：妥善保管验证器私钥，使用硬件钱包或HSM
|
||||
2. **质押要求**：验证器需要质押至少10,000 NAC
|
||||
3. **多签验证**：默认需要至少2个验证器签名
|
||||
4. **金额限制**：单次锁定金额不超过1,000,000 NAC
|
||||
5. **重放攻击**：系统自动防止消息重放
|
||||
6. **暂停机制**：管理员可以在紧急情况下暂停桥接
|
||||
|
||||
## 类型系统说明
|
||||
|
||||
### NAC原生类型
|
||||
|
||||
- **Address**: 32字节（与以太坊相同）
|
||||
- **Hash**: 48字节（SHA3-384，不是以太坊的32字节）
|
||||
- **Signature**: 96字节（NAC原生签名，不是以太坊的65字节）
|
||||
|
||||
### 类型转换
|
||||
|
||||
系统提供了NAC和以太坊类型之间的转换工具：
|
||||
|
||||
```rust
|
||||
use nac_cross_chain_bridge::types::{address_converter, hash_converter};
|
||||
|
||||
// NAC地址（32字节）转以太坊地址（20字节）
|
||||
let eth_addr = address_converter::nac_to_eth(&nac_addr);
|
||||
|
||||
// 以太坊地址转NAC地址
|
||||
let nac_addr = address_converter::eth_to_nac(ð_addr);
|
||||
|
||||
// NAC哈希（48字节）转以太坊哈希（32字节）
|
||||
let eth_hash = hash_converter::nac_to_eth(&nac_hash);
|
||||
|
||||
// 以太坊哈希转NAC哈希
|
||||
let nac_hash = hash_converter::eth_to_nac(ð_hash);
|
||||
```
|
||||
|
||||
## 故障排除
|
||||
|
||||
### 问题1：锁定失败
|
||||
|
||||
**原因**：金额超过限制或桥接已暂停
|
||||
|
||||
**解决方案**：
|
||||
```rust
|
||||
// 检查桥接状态
|
||||
let status = manager.get_status().await?;
|
||||
if status.is_paused {
|
||||
println!("Bridge is paused");
|
||||
}
|
||||
|
||||
// 检查金额限制
|
||||
if amount > config.max_lock_amount {
|
||||
println!("Amount exceeds limit");
|
||||
}
|
||||
```
|
||||
|
||||
### 问题2：解锁失败
|
||||
|
||||
**原因**：签名不足或证明无效
|
||||
|
||||
**解决方案**：
|
||||
```rust
|
||||
// 确保有足够的验证器签名
|
||||
if proof.signatures.len() < config.min_validator_signatures {
|
||||
println!("Insufficient signatures");
|
||||
}
|
||||
|
||||
// 验证每个签名的有效性
|
||||
for sig in &proof.signatures {
|
||||
// 签名必须是96字节
|
||||
assert_eq!(sig.as_bytes().len(), 96);
|
||||
}
|
||||
```
|
||||
|
||||
### 问题3：中继节点无法启动
|
||||
|
||||
**原因**：配置错误或端口占用
|
||||
|
||||
**解决方案**：
|
||||
```bash
|
||||
# 检查配置文件
|
||||
cat config.toml
|
||||
|
||||
# 检查端口占用
|
||||
netstat -tulpn | grep 8545
|
||||
|
||||
# 查看日志
|
||||
tail -f logs/relay.log
|
||||
```
|
||||
|
||||
## 性能优化
|
||||
|
||||
1. **批量处理**：中继节点支持批量处理跨链消息
|
||||
2. **缓存优化**：使用sled数据库进行高效存储
|
||||
3. **并发处理**：使用tokio异步运行时提高并发性能
|
||||
4. **连接池**：复用RPC连接减少延迟
|
||||
|
||||
## 监控和日志
|
||||
|
||||
### 日志级别
|
||||
|
||||
```bash
|
||||
# 设置日志级别
|
||||
export RUST_LOG=nac_cross_chain_bridge=info
|
||||
|
||||
# 启动中继节点
|
||||
cargo run --bin nac-bridge-relay
|
||||
```
|
||||
|
||||
### 监控指标
|
||||
|
||||
系统提供以下监控指标：
|
||||
|
||||
- 锁定资产总量
|
||||
- 解锁资产总量
|
||||
- 活跃验证器数量
|
||||
- 中继消息成功率
|
||||
- 平均处理时间
|
||||
|
||||
## 支持
|
||||
|
||||
如有问题，请访问：
|
||||
- 文档：https://docs.newassetchain.io
|
||||
- GitHub：https://github.com/newassetchain/nac-cross-chain-bridge
|
||||
- 社区：https://discord.gg/nac
|
||||
|
|
@ -0,0 +1,246 @@
|
|||
use nac_cross_chain_bridge::{
|
||||
init_logger,
|
||||
manager::{BridgeManager, BridgeManagerImpl},
|
||||
eth_listener::EthereumListener,
|
||||
ChainId,
|
||||
VERSION,
|
||||
};
|
||||
use std::sync::Arc;
|
||||
use tokio::signal;
|
||||
|
||||
/// 中继节点配置
|
||||
#[derive(Debug, Clone)]
|
||||
struct RelayConfig {
|
||||
/// 数据库路径
|
||||
db_path: String,
|
||||
|
||||
/// NAC RPC URL
|
||||
nac_rpc_url: String,
|
||||
|
||||
/// 以太坊 RPC URL
|
||||
eth_rpc_url: String,
|
||||
|
||||
/// BSC RPC URL
|
||||
bsc_rpc_url: Option<String>,
|
||||
|
||||
/// NAC桥接合约地址
|
||||
nac_bridge_address: [u8; 32],
|
||||
|
||||
/// 以太坊桥接合约地址
|
||||
eth_bridge_address: [u8; 32],
|
||||
}
|
||||
|
||||
impl Default for RelayConfig {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
db_path: "./bridge_data".to_string(),
|
||||
nac_rpc_url: "http://localhost:8545".to_string(),
|
||||
eth_rpc_url: "http://localhost:8546".to_string(),
|
||||
bsc_rpc_url: None,
|
||||
nac_bridge_address: [0u8; 32],
|
||||
eth_bridge_address: [0u8; 32],
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// 从环境变量加载配置
|
||||
fn load_config_from_env() -> RelayConfig {
|
||||
let mut config = RelayConfig::default();
|
||||
|
||||
if let Ok(db_path) = std::env::var("BRIDGE_DB_PATH") {
|
||||
config.db_path = db_path;
|
||||
}
|
||||
|
||||
if let Ok(nac_rpc) = std::env::var("NAC_RPC_URL") {
|
||||
config.nac_rpc_url = nac_rpc;
|
||||
}
|
||||
|
||||
if let Ok(eth_rpc) = std::env::var("ETH_RPC_URL") {
|
||||
config.eth_rpc_url = eth_rpc;
|
||||
}
|
||||
|
||||
if let Ok(bsc_rpc) = std::env::var("BSC_RPC_URL") {
|
||||
config.bsc_rpc_url = Some(bsc_rpc);
|
||||
}
|
||||
|
||||
// TODO: 从环境变量加载合约地址
|
||||
|
||||
config
|
||||
}
|
||||
|
||||
/// 初始化桥接管理器
|
||||
async fn initialize_bridge(config: &RelayConfig) -> anyhow::Result<Arc<BridgeManagerImpl>> {
|
||||
log::info!("Initializing bridge manager...");
|
||||
log::info!("Database path: {}", config.db_path);
|
||||
log::info!("NAC RPC: {}", config.nac_rpc_url);
|
||||
log::info!("Ethereum RPC: {}", config.eth_rpc_url);
|
||||
|
||||
// 创建桥接管理器
|
||||
let manager = Arc::new(BridgeManagerImpl::new(&config.db_path)?);
|
||||
|
||||
// 初始化
|
||||
manager.initialize().await?;
|
||||
|
||||
// 注册以太坊监听器
|
||||
let eth_listener = Arc::new(EthereumListener::new(
|
||||
ChainId::Ethereum,
|
||||
config.eth_rpc_url.clone(),
|
||||
config.eth_bridge_address,
|
||||
));
|
||||
manager.register_listener(ChainId::Ethereum, eth_listener).await?;
|
||||
|
||||
// 如果配置了BSC，也注册BSC监听器
|
||||
if let Some(bsc_rpc) = &config.bsc_rpc_url {
|
||||
let bsc_listener = Arc::new(EthereumListener::new(
|
||||
ChainId::BSC,
|
||||
bsc_rpc.clone(),
|
||||
config.eth_bridge_address, // TODO: 使用独立的BSC合约地址
|
||||
));
|
||||
manager.register_listener(ChainId::BSC, bsc_listener).await?;
|
||||
}
|
||||
|
||||
log::info!("Bridge manager initialized successfully");
|
||||
Ok(manager)
|
||||
}
|
||||
|
||||
/// 启动中继节点
|
||||
async fn start_relay(manager: Arc<BridgeManagerImpl>) -> anyhow::Result<()> {
|
||||
log::info!("Starting relay node...");
|
||||
|
||||
// 启动桥接
|
||||
manager.start().await?;
|
||||
|
||||
log::info!("Relay node started successfully");
|
||||
log::info!("Press Ctrl+C to stop");
|
||||
|
||||
// 等待退出信号
|
||||
signal::ctrl_c().await?;
|
||||
|
||||
log::info!("Received shutdown signal, stopping relay node...");
|
||||
|
||||
// 停止桥接
|
||||
manager.stop().await?;
|
||||
|
||||
log::info!("Relay node stopped");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 显示状态
|
||||
async fn show_status(manager: &BridgeManagerImpl) -> anyhow::Result<()> {
|
||||
let status = manager.get_status().await?;
|
||||
|
||||
println!("=== NAC Bridge Relay Status ===");
|
||||
println!("Running: {}", status.is_running);
|
||||
println!("Paused: {}", status.is_paused);
|
||||
println!("Total Locked: {}", status.total_locked);
|
||||
println!("Total Unlocked: {}", status.total_unlocked);
|
||||
println!("Active Validators: {}", status.active_validators);
|
||||
println!("Active Relayers: {}", status.active_relayers);
|
||||
println!("==============================");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
// 初始化日志
|
||||
init_logger();
|
||||
|
||||
log::info!("NAC Bridge Relay v{}", VERSION);
|
||||
log::info!("=================================");
|
||||
|
||||
// 加载配置
|
||||
let config = load_config_from_env();
|
||||
|
||||
// 解析命令行参数
|
||||
let args: Vec<String> = std::env::args().collect();
|
||||
let command = args.get(1).map(|s| s.as_str()).unwrap_or("start");
|
||||
|
||||
match command {
|
||||
"start" => {
|
||||
// 初始化桥接
|
||||
let manager = initialize_bridge(&config).await?;
|
||||
|
||||
// 启动中继节点
|
||||
start_relay(manager).await?;
|
||||
}
|
||||
|
||||
"status" => {
|
||||
// 创建桥接管理器（只读模式）
|
||||
let manager = BridgeManagerImpl::new(&config.db_path)?;
|
||||
manager.initialize().await?;
|
||||
|
||||
// 显示状态
|
||||
show_status(&manager).await?;
|
||||
}
|
||||
|
||||
"pause" => {
|
||||
let manager = BridgeManagerImpl::new(&config.db_path)?;
|
||||
manager.initialize().await?;
|
||||
manager.pause().await?;
|
||||
log::info!("Bridge paused");
|
||||
}
|
||||
|
||||
"resume" => {
|
||||
let manager = BridgeManagerImpl::new(&config.db_path)?;
|
||||
manager.initialize().await?;
|
||||
manager.resume().await?;
|
||||
log::info!("Bridge resumed");
|
||||
}
|
||||
|
||||
"version" => {
|
||||
println!("NAC Bridge Relay v{}", VERSION);
|
||||
}
|
||||
|
||||
"help" | "--help" | "-h" => {
|
||||
println!("NAC Bridge Relay v{}", VERSION);
|
||||
println!("\nUsage: nac-bridge-relay [COMMAND]");
|
||||
println!("\nCommands:");
|
||||
println!(" start Start the relay node (default)");
|
||||
println!(" status Show bridge status");
|
||||
println!(" pause Pause the bridge");
|
||||
println!(" resume Resume the bridge");
|
||||
println!(" version Show version");
|
||||
println!(" help Show this help message");
|
||||
println!("\nEnvironment Variables:");
|
||||
println!(" BRIDGE_DB_PATH Database path (default: ./bridge_data)");
|
||||
println!(" NAC_RPC_URL NAC RPC URL (default: http://localhost:8545)");
|
||||
println!(" ETH_RPC_URL Ethereum RPC URL (default: http://localhost:8546)");
|
||||
println!(" BSC_RPC_URL BSC RPC URL (optional)");
|
||||
}
|
||||
|
||||
_ => {
|
||||
eprintln!("Unknown command: {}", command);
|
||||
eprintln!("Run 'nac-bridge-relay help' for usage");
|
||||
std::process::exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_default_config() {
|
||||
let config = RelayConfig::default();
|
||||
assert_eq!(config.db_path, "./bridge_data");
|
||||
assert_eq!(config.nac_rpc_url, "http://localhost:8545");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_load_config_from_env() {
|
||||
std::env::set_var("BRIDGE_DB_PATH", "/tmp/test_bridge");
|
||||
std::env::set_var("NAC_RPC_URL", "http://test:8545");
|
||||
|
||||
let config = load_config_from_env();
|
||||
assert_eq!(config.db_path, "/tmp/test_bridge");
|
||||
assert_eq!(config.nac_rpc_url, "http://test:8545");
|
||||
|
||||
std::env::remove_var("BRIDGE_DB_PATH");
|
||||
std::env::remove_var("NAC_RPC_URL");
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,255 @@
|
|||
use crate::types::*;
|
||||
use async_trait::async_trait;
|
||||
use std::sync::Arc;
|
||||
use tokio::sync::mpsc;
|
||||
|
||||
/// 事件类型
|
||||
#[derive(Debug, Clone)]
|
||||
pub enum BridgeEvent {
|
||||
AssetLocked {
|
||||
lock_id: Hash,
|
||||
asset: AssetInfo,
|
||||
amount: Amount,
|
||||
locker: Address,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
},
|
||||
AssetBurned {
|
||||
burn_id: Hash,
|
||||
asset: AssetInfo,
|
||||
amount: Amount,
|
||||
burner: Address,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
},
|
||||
}
|
||||
|
||||
/// 事件监听器trait
|
||||
#[async_trait]
|
||||
pub trait EventListener: Send + Sync {
|
||||
/// 启动监听
|
||||
async fn start(&self) -> Result<()>;
|
||||
|
||||
/// 停止监听
|
||||
async fn stop(&self) -> Result<()>;
|
||||
|
||||
/// 获取事件通道
|
||||
fn get_event_channel(&mut self) -> mpsc::Receiver<BridgeEvent>;
|
||||
}
|
||||
|
||||
/// 以太坊事件监听器
|
||||
pub struct EthereumListener {
|
||||
chain_id: ChainId,
|
||||
rpc_url: String,
|
||||
contract_address: Address, // NAC的32字节地址
|
||||
event_tx: mpsc::Sender<BridgeEvent>,
|
||||
event_rx: Option<mpsc::Receiver<BridgeEvent>>,
|
||||
is_running: Arc<tokio::sync::RwLock<bool>>,
|
||||
}
|
||||
|
||||
impl EthereumListener {
|
||||
pub fn new(
|
||||
chain_id: ChainId,
|
||||
rpc_url: String,
|
||||
contract_address: Address, // NAC的32字节地址
|
||||
) -> Self {
|
||||
let (event_tx, event_rx) = mpsc::channel(1000);
|
||||
|
||||
Self {
|
||||
chain_id,
|
||||
rpc_url,
|
||||
contract_address,
|
||||
event_tx,
|
||||
event_rx: Some(event_rx),
|
||||
is_running: Arc::new(tokio::sync::RwLock::new(false)),
|
||||
}
|
||||
}
|
||||
|
||||
/// 处理锁定事件
|
||||
async fn handle_lock_event(
|
||||
&self,
|
||||
lock_id: Hash,
|
||||
asset_id: AssetId,
|
||||
amount: Amount,
|
||||
locker: Address,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
) -> Result<()> {
|
||||
let event = BridgeEvent::AssetLocked {
|
||||
lock_id,
|
||||
asset: AssetInfo {
|
||||
asset_id,
|
||||
name: "Unknown".to_string(),
|
||||
symbol: "UNK".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: self.chain_id,
|
||||
},
|
||||
amount,
|
||||
locker,
|
||||
target_chain,
|
||||
receiver,
|
||||
};
|
||||
|
||||
self.event_tx.send(event).await
|
||||
.map_err(|e| BridgeError::Other(e.to_string()))?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 处理销毁事件
|
||||
async fn handle_burn_event(
|
||||
&self,
|
||||
burn_id: Hash,
|
||||
asset_id: AssetId,
|
||||
amount: Amount,
|
||||
burner: Address,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
) -> Result<()> {
|
||||
let event = BridgeEvent::AssetBurned {
|
||||
burn_id,
|
||||
asset: AssetInfo {
|
||||
asset_id,
|
||||
name: "Unknown".to_string(),
|
||||
symbol: "UNK".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: self.chain_id,
|
||||
},
|
||||
amount,
|
||||
burner,
|
||||
target_chain,
|
||||
receiver,
|
||||
};
|
||||
|
||||
self.event_tx.send(event).await
|
||||
.map_err(|e| BridgeError::Other(e.to_string()))?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 监听循环
|
||||
async fn listen_loop(&self) -> Result<()> {
|
||||
log::info!(
|
||||
"Started listening to {} events at {}",
|
||||
self.chain_id,
|
||||
self.rpc_url
|
||||
);
|
||||
|
||||
// TODO: 实现实际的以太坊事件监听逻辑
|
||||
// 使用 ethers-rs 库连接到以太坊节点
|
||||
// 订阅合约事件
|
||||
// 处理事件并发送到通道
|
||||
|
||||
// 简化实现：模拟事件监听
|
||||
loop {
|
||||
let is_running = *self.is_running.read().await;
|
||||
if !is_running {
|
||||
break;
|
||||
}
|
||||
|
||||
tokio::time::sleep(tokio::time::Duration::from_secs(1)).await;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl EventListener for EthereumListener {
|
||||
async fn start(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if *is_running {
|
||||
return Err(BridgeError::Other("Listener already running".to_string()));
|
||||
}
|
||||
|
||||
*is_running = true;
|
||||
|
||||
// 启动监听循环
|
||||
let listener = self.clone();
|
||||
tokio::spawn(async move {
|
||||
if let Err(e) = listener.listen_loop().await {
|
||||
log::error!("Listen loop error: {:?}", e);
|
||||
}
|
||||
});
|
||||
|
||||
log::info!("Ethereum listener started");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn stop(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if !*is_running {
|
||||
return Err(BridgeError::Other("Listener not running".to_string()));
|
||||
}
|
||||
|
||||
*is_running = false;
|
||||
log::info!("Ethereum listener stopped");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn get_event_channel(&mut self) -> mpsc::Receiver<BridgeEvent> {
|
||||
self.event_rx.take().expect("Event channel already taken")
|
||||
}
|
||||
}
|
||||
|
||||
impl Clone for EthereumListener {
|
||||
fn clone(&self) -> Self {
|
||||
let (event_tx, _) = mpsc::channel(1000);
|
||||
Self {
|
||||
chain_id: self.chain_id,
|
||||
rpc_url: self.rpc_url.clone(),
|
||||
contract_address: self.contract_address,
|
||||
event_tx,
|
||||
event_rx: None,
|
||||
is_running: self.is_running.clone(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_start_stop_listener() {
|
||||
let listener = EthereumListener::new(
|
||||
ChainId::Ethereum,
|
||||
"http://localhost:8545".to_string(),
|
||||
[1u8; 32],
|
||||
);
|
||||
|
||||
listener.start().await.unwrap();
|
||||
assert!(*listener.is_running.read().await);
|
||||
|
||||
listener.stop().await.unwrap();
|
||||
assert!(!*listener.is_running.read().await);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_handle_lock_event() {
|
||||
let mut listener = EthereumListener::new(
|
||||
ChainId::Ethereum,
|
||||
"http://localhost:8545".to_string(),
|
||||
[1u8; 32],
|
||||
);
|
||||
|
||||
let mut event_rx = listener.get_event_channel();
|
||||
|
||||
listener.handle_lock_event(
|
||||
Hash::from([1u8; 48]),
|
||||
Hash::from([2u8; 48]),
|
||||
1000 * 10u128.pow(18),
|
||||
[3u8; 32],
|
||||
ChainId::NAC,
|
||||
[4u8; 32],
|
||||
).await.unwrap();
|
||||
|
||||
let event = event_rx.recv().await.unwrap();
|
||||
match event {
|
||||
BridgeEvent::AssetLocked { amount, .. } => {
|
||||
assert_eq!(amount, 1000 * 10u128.pow(18));
|
||||
}
|
||||
_ => panic!("Expected AssetLocked event"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
//! # NAC跨链桥接模块
|
||||
//!
|
||||
//! 本模块实现NAC公链与以太坊、BSC等主流区块链之间的资产互通功能。
|
||||
//!
|
||||
//! ## 主要功能
|
||||
//!
|
||||
//! - **资产锁定/解锁**：在源链上锁定资产，在目标链上铸造/销毁包装资产
|
||||
//! - **跨链消息传递**：安全可靠的跨链消息协议
|
||||
//! - **多签验证**：基于验证器池的多签验证机制
|
||||
//! - **中继网络**：去中心化的中继节点网络
|
||||
//! - **事件监听**：实时监听各链上的桥接事件
|
||||
//!
|
||||
//! ## 使用示例
|
||||
//!
|
||||
//! ```rust,no_run
|
||||
//! use nac_cross_chain_bridge::manager::{BridgeManager, BridgeManagerImpl};
|
||||
//!
|
||||
//! #[tokio::main]
|
||||
//! async fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
//! // 创建桥接管理器
|
||||
//! let manager = BridgeManagerImpl::new("/path/to/db")?;
|
||||
//!
|
||||
//! // 初始化
|
||||
//! manager.initialize().await?;
|
||||
//!
|
||||
//! // 启动桥接
|
||||
//! manager.start().await?;
|
||||
//!
|
||||
//! // 获取状态
|
||||
//! let status = manager.get_status().await?;
|
||||
//! println!("Bridge status: {:?}", status);
|
||||
//!
|
||||
//! // 停止桥接
|
||||
//! manager.stop().await?;
|
||||
//!
|
||||
//! Ok(())
|
||||
//! }
|
||||
//! ```
|
||||
//!
|
||||
//! ## 架构说明
|
||||
//!
|
||||
//! 详细的架构设计请参考 `ARCHITECTURE.md` 文档。
|
||||
|
||||
pub mod types;
|
||||
pub mod locker;
|
||||
pub mod unlocker;
|
||||
pub mod validator;
|
||||
pub mod relayer;
|
||||
pub mod eth_listener;
|
||||
pub mod manager;
|
||||
|
||||
// 重新导出常用类型
|
||||
pub use types::{
|
||||
ChainId,
|
||||
MessageType,
|
||||
AssetInfo,
|
||||
AssetId,
|
||||
Address,
|
||||
Amount,
|
||||
Signature,
|
||||
CrossChainMessage,
|
||||
LockReceipt,
|
||||
LockStatus,
|
||||
UnlockReceipt,
|
||||
UnlockStatus,
|
||||
UnlockProof,
|
||||
ValidatorInfo,
|
||||
RelayerInfo,
|
||||
BridgeConfig,
|
||||
BridgeError,
|
||||
Result,
|
||||
};
|
||||
|
||||
pub use locker::{AssetLocker, AssetLockerImpl};
|
||||
pub use unlocker::{AssetUnlocker, AssetUnlockerImpl};
|
||||
pub use validator::{ValidatorPool, ValidatorPoolImpl};
|
||||
pub use relayer::{Relayer, RelayerImpl, RelayerStats};
|
||||
pub use eth_listener::{EventListener, EthereumListener, BridgeEvent};
|
||||
pub use manager::{BridgeManager, BridgeManagerImpl, BridgeStatus};
|
||||
|
||||
/// 版本信息
|
||||
pub const VERSION: &str = env!("CARGO_PKG_VERSION");
|
||||
|
||||
/// 初始化日志系统
|
||||
pub fn init_logger() {
|
||||
env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info"))
|
||||
.init();
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_version() {
|
||||
assert!(!VERSION.is_empty());
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,299 @@
|
|||
use crate::types::*;
|
||||
use async_trait::async_trait;
|
||||
use sled::Db;
|
||||
use std::sync::Arc;
|
||||
use sha3::{Digest, Sha3_384}; // 使用SHA3-384而不是Keccak256
|
||||
|
||||
/// 资产锁定器trait
|
||||
#[async_trait]
|
||||
pub trait AssetLocker: Send + Sync {
|
||||
/// 锁定资产
|
||||
async fn lock_asset(
|
||||
&self,
|
||||
asset: AssetInfo,
|
||||
amount: Amount,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
) -> Result<LockReceipt>;
|
||||
|
||||
/// 查询锁定状态
|
||||
async fn get_lock_status(&self, lock_id: Hash) -> Result<LockStatus>;
|
||||
|
||||
/// 获取锁定收据
|
||||
async fn get_lock_receipt(&self, lock_id: Hash) -> Result<LockReceipt>;
|
||||
|
||||
/// 更新锁定状态
|
||||
async fn update_lock_status(&self, lock_id: Hash, status: LockStatus) -> Result<()>;
|
||||
}
|
||||
|
||||
/// 资产锁定器实现
|
||||
pub struct AssetLockerImpl {
|
||||
db: Arc<Db>,
|
||||
config: BridgeConfig,
|
||||
}
|
||||
|
||||
impl AssetLockerImpl {
|
||||
pub fn new(db: Arc<Db>, config: BridgeConfig) -> Self {
|
||||
Self { db, config }
|
||||
}
|
||||
|
||||
/// 生成锁定ID（使用NAC的SHA3-384）
|
||||
fn generate_lock_id(
|
||||
&self,
|
||||
asset_id: &AssetId,
|
||||
locker: &Address,
|
||||
timestamp: u64,
|
||||
) -> Hash {
|
||||
let mut hasher = Sha3_384::new();
|
||||
hasher.update(asset_id.as_ref());
|
||||
hasher.update(locker);
|
||||
hasher.update(×tamp.to_le_bytes());
|
||||
let result = hasher.finalize();
|
||||
let mut hash_bytes = [0u8; 48];
|
||||
hash_bytes.copy_from_slice(&result);
|
||||
Hash::from(hash_bytes)
|
||||
}
|
||||
|
||||
/// 验证锁定请求
|
||||
fn validate_lock_request(
|
||||
&self,
|
||||
amount: Amount,
|
||||
) -> Result<()> {
|
||||
// 检查桥接是否暂停
|
||||
if self.config.is_paused {
|
||||
return Err(BridgeError::BridgePaused);
|
||||
}
|
||||
|
||||
// 检查金额是否超过限制
|
||||
if amount > self.config.max_single_amount {
|
||||
return Err(BridgeError::AmountExceedsLimit {
|
||||
amount,
|
||||
limit: self.config.max_single_amount,
|
||||
});
|
||||
}
|
||||
|
||||
// TODO: 检查日累计限额
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 保存锁定收据
|
||||
fn save_lock_receipt(&self, receipt: &LockReceipt) -> Result<()> {
|
||||
let key = format!("lock:{}", hex::encode(receipt.lock_id));
|
||||
let value = bincode::serialize(receipt)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
self.db.insert(key.as_bytes(), value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 加载锁定收据
|
||||
fn load_lock_receipt(&self, lock_id: Hash) -> Result<LockReceipt> {
|
||||
let key = format!("lock:{}", hex::encode(lock_id));
|
||||
|
||||
let value = self.db.get(key.as_bytes())
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?
|
||||
.ok_or(BridgeError::LockNotFound(lock_id))?;
|
||||
|
||||
let receipt = bincode::deserialize(&value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(receipt)
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl AssetLocker for AssetLockerImpl {
|
||||
async fn lock_asset(
|
||||
&self,
|
||||
asset: AssetInfo,
|
||||
amount: Amount,
|
||||
target_chain: ChainId,
|
||||
receiver: Address,
|
||||
) -> Result<LockReceipt> {
|
||||
// 验证锁定请求
|
||||
self.validate_lock_request(amount)?;
|
||||
|
||||
// 生成锁定ID
|
||||
let timestamp = std::time::SystemTime::now()
|
||||
.duration_since(std::time::UNIX_EPOCH)
|
||||
.unwrap()
|
||||
.as_secs();
|
||||
|
||||
let locker = [0u8; 32]; // TODO: 从上下文获取实际的锁定者地址
|
||||
let lock_id = self.generate_lock_id(&asset.asset_id, &locker, timestamp);
|
||||
|
||||
// 创建锁定收据
|
||||
let receipt = LockReceipt {
|
||||
lock_id,
|
||||
asset,
|
||||
amount,
|
||||
locker,
|
||||
target_chain,
|
||||
receiver,
|
||||
timestamp,
|
||||
status: LockStatus::Pending,
|
||||
};
|
||||
|
||||
// 保存锁定收据
|
||||
self.save_lock_receipt(&receipt)?;
|
||||
|
||||
log::info!(
|
||||
"Asset locked: lock_id={}, amount={}, target_chain={}",
|
||||
hex::encode(lock_id),
|
||||
amount,
|
||||
target_chain
|
||||
);
|
||||
|
||||
Ok(receipt)
|
||||
}
|
||||
|
||||
async fn get_lock_status(&self, lock_id: Hash) -> Result<LockStatus> {
|
||||
let receipt = self.load_lock_receipt(lock_id)?;
|
||||
Ok(receipt.status)
|
||||
}
|
||||
|
||||
async fn get_lock_receipt(&self, lock_id: Hash) -> Result<LockReceipt> {
|
||||
self.load_lock_receipt(lock_id)
|
||||
}
|
||||
|
||||
async fn update_lock_status(&self, lock_id: Hash, status: LockStatus) -> Result<()> {
|
||||
let mut receipt = self.load_lock_receipt(lock_id)?;
|
||||
receipt.status = status;
|
||||
self.save_lock_receipt(&receipt)?;
|
||||
|
||||
log::info!(
|
||||
"Lock status updated: lock_id={}, status={:?}",
|
||||
hex::encode(lock_id),
|
||||
status
|
||||
);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_lock_asset() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let locker = AssetLockerImpl::new(db, config);
|
||||
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]), // NAC的48字节哈希
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
let amount = 1000 * 10u128.pow(18);
|
||||
let target_chain = ChainId::Ethereum;
|
||||
let receiver = [2u8; 32]; // NAC的32字节地址
|
||||
|
||||
let receipt = locker.lock_asset(asset, amount, target_chain, receiver).await.unwrap();
|
||||
|
||||
assert_eq!(receipt.amount, amount);
|
||||
assert_eq!(receipt.target_chain, target_chain);
|
||||
assert_eq!(receipt.receiver, receiver);
|
||||
assert_eq!(receipt.status, LockStatus::Pending);
|
||||
assert_eq!(receipt.lock_id.as_bytes().len(), 48); // 验证是48字节哈希
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_get_lock_status() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let locker = AssetLockerImpl::new(db, config);
|
||||
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]),
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
let receipt = locker.lock_asset(
|
||||
asset,
|
||||
1000 * 10u128.pow(18),
|
||||
ChainId::Ethereum,
|
||||
[2u8; 32],
|
||||
).await.unwrap();
|
||||
|
||||
let status = locker.get_lock_status(receipt.lock_id).await.unwrap();
|
||||
assert_eq!(status, LockStatus::Pending);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_update_lock_status() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let locker = AssetLockerImpl::new(db, config);
|
||||
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]),
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
let receipt = locker.lock_asset(
|
||||
asset,
|
||||
1000 * 10u128.pow(18),
|
||||
ChainId::Ethereum,
|
||||
[2u8; 32],
|
||||
).await.unwrap();
|
||||
|
||||
locker.update_lock_status(receipt.lock_id, LockStatus::Locked).await.unwrap();
|
||||
|
||||
let status = locker.get_lock_status(receipt.lock_id).await.unwrap();
|
||||
assert_eq!(status, LockStatus::Locked);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_amount_exceeds_limit() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let locker = AssetLockerImpl::new(db, config);
|
||||
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]),
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
let amount = 200_000 * 10u128.pow(18); // 超过限制
|
||||
|
||||
let result = locker.lock_asset(
|
||||
asset,
|
||||
amount,
|
||||
ChainId::Ethereum,
|
||||
[2u8; 32],
|
||||
).await;
|
||||
|
||||
assert!(matches!(result, Err(BridgeError::AmountExceedsLimit { .. })));
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_nac_address_size() {
|
||||
// 验证NAC地址是32字节
|
||||
let address: Address = [0u8; 32];
|
||||
assert_eq!(address.len(), 32);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_nac_hash_size() {
|
||||
// 验证NAC哈希是48字节
|
||||
let hash = Hash::from([0u8; 48]);
|
||||
assert_eq!(hash.as_bytes().len(), 48);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,347 @@
|
|||
use crate::types::*;
|
||||
use crate::locker::{AssetLocker, AssetLockerImpl};
|
||||
use crate::unlocker::{AssetUnlocker, AssetUnlockerImpl};
|
||||
use crate::validator::{ValidatorPool, ValidatorPoolImpl};
|
||||
use crate::relayer::{Relayer, RelayerImpl};
|
||||
use crate::eth_listener::{EventListener, EthereumListener, BridgeEvent};
|
||||
use async_trait::async_trait;
|
||||
use sled::Db;
|
||||
use std::collections::HashMap;
|
||||
use std::sync::Arc;
|
||||
use tokio::sync::RwLock;
|
||||
|
||||
/// 桥接管理器trait
|
||||
#[async_trait]
|
||||
pub trait BridgeManager: Send + Sync {
|
||||
/// 初始化桥接
|
||||
async fn initialize(&self) -> Result<()>;
|
||||
|
||||
/// 启动桥接
|
||||
async fn start(&self) -> Result<()>;
|
||||
|
||||
/// 停止桥接
|
||||
async fn stop(&self) -> Result<()>;
|
||||
|
||||
/// 获取桥接配置
|
||||
async fn get_config(&self) -> Result<BridgeConfig>;
|
||||
|
||||
/// 更新桥接配置
|
||||
async fn update_config(&self, config: BridgeConfig) -> Result<()>;
|
||||
|
||||
/// 暂停桥接
|
||||
async fn pause(&self) -> Result<()>;
|
||||
|
||||
/// 恢复桥接
|
||||
async fn resume(&self) -> Result<()>;
|
||||
|
||||
/// 获取桥接状态
|
||||
async fn get_status(&self) -> Result<BridgeStatus>;
|
||||
}
|
||||
|
||||
/// 桥接状态
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct BridgeStatus {
|
||||
pub is_running: bool,
|
||||
pub is_paused: bool,
|
||||
pub total_locked: Amount,
|
||||
pub total_unlocked: Amount,
|
||||
pub active_validators: usize,
|
||||
pub active_relayers: usize,
|
||||
}
|
||||
|
||||
/// 桥接管理器实现
|
||||
pub struct BridgeManagerImpl {
|
||||
db: Arc<Db>,
|
||||
config: Arc<RwLock<BridgeConfig>>,
|
||||
locker: Arc<dyn AssetLocker>,
|
||||
unlocker: Arc<dyn AssetUnlocker>,
|
||||
validator_pool: Arc<dyn ValidatorPool>,
|
||||
relayer: Arc<dyn Relayer>,
|
||||
listeners: Arc<RwLock<HashMap<ChainId, Arc<dyn EventListener>>>>,
|
||||
is_running: Arc<RwLock<bool>>,
|
||||
}
|
||||
|
||||
impl BridgeManagerImpl {
|
||||
pub fn new(db_path: &str) -> Result<Self> {
|
||||
let db = Arc::new(
|
||||
sled::open(db_path)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?
|
||||
);
|
||||
|
||||
let config = Arc::new(RwLock::new(BridgeConfig::default()));
|
||||
let config_clone = config.clone();
|
||||
|
||||
// 创建组件
|
||||
let locker = Arc::new(AssetLockerImpl::new(
|
||||
db.clone(),
|
||||
config_clone.try_read().unwrap().clone(),
|
||||
));
|
||||
|
||||
let unlocker = Arc::new(AssetUnlockerImpl::new(
|
||||
db.clone(),
|
||||
config_clone.try_read().unwrap().clone(),
|
||||
));
|
||||
|
||||
let validator_pool = Arc::new(ValidatorPoolImpl::new(
|
||||
db.clone(),
|
||||
config_clone.try_read().unwrap().clone(),
|
||||
));
|
||||
|
||||
let relayer = Arc::new(RelayerImpl::new(
|
||||
db.clone(),
|
||||
locker.clone(),
|
||||
unlocker.clone(),
|
||||
validator_pool.clone(),
|
||||
config_clone.try_read().unwrap().clone(),
|
||||
));
|
||||
|
||||
Ok(Self {
|
||||
db,
|
||||
config,
|
||||
locker,
|
||||
unlocker,
|
||||
validator_pool,
|
||||
relayer,
|
||||
listeners: Arc::new(RwLock::new(HashMap::new())),
|
||||
is_running: Arc::new(RwLock::new(false)),
|
||||
})
|
||||
}
|
||||
|
||||
/// 注册事件监听器
|
||||
pub async fn register_listener(
|
||||
&self,
|
||||
chain_id: ChainId,
|
||||
listener: Arc<dyn EventListener>,
|
||||
) -> Result<()> {
|
||||
let mut listeners = self.listeners.write().await;
|
||||
listeners.insert(chain_id, listener);
|
||||
log::info!("Registered listener for chain: {}", chain_id);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 处理桥接事件
|
||||
async fn handle_bridge_event(&self, event: BridgeEvent) -> Result<()> {
|
||||
match event {
|
||||
BridgeEvent::AssetLocked {
|
||||
lock_id,
|
||||
asset,
|
||||
amount,
|
||||
locker,
|
||||
target_chain,
|
||||
receiver,
|
||||
} => {
|
||||
log::info!(
|
||||
"Processing AssetLocked event: lock_id={}, amount={}",
|
||||
hex::encode(lock_id),
|
||||
amount
|
||||
);
|
||||
|
||||
// 创建跨链消息
|
||||
let message = CrossChainMessage {
|
||||
id: lock_id,
|
||||
source_chain: asset.chain_id,
|
||||
target_chain,
|
||||
message_type: MessageType::Mint,
|
||||
asset,
|
||||
sender: locker,
|
||||
receiver,
|
||||
amount,
|
||||
timestamp: std::time::SystemTime::now()
|
||||
.duration_since(std::time::UNIX_EPOCH)
|
||||
.unwrap()
|
||||
.as_secs(),
|
||||
nonce: 0,
|
||||
signatures: vec![],
|
||||
};
|
||||
|
||||
// 中继消息
|
||||
self.relayer.relay_message(message).await?;
|
||||
}
|
||||
|
||||
BridgeEvent::AssetBurned {
|
||||
burn_id,
|
||||
asset,
|
||||
amount,
|
||||
burner,
|
||||
target_chain,
|
||||
receiver,
|
||||
} => {
|
||||
log::info!(
|
||||
"Processing AssetBurned event: burn_id={}, amount={}",
|
||||
hex::encode(burn_id),
|
||||
amount
|
||||
);
|
||||
|
||||
// 创建跨链消息
|
||||
let message = CrossChainMessage {
|
||||
id: burn_id,
|
||||
source_chain: asset.chain_id,
|
||||
target_chain,
|
||||
message_type: MessageType::Unlock,
|
||||
asset,
|
||||
sender: burner,
|
||||
receiver,
|
||||
amount,
|
||||
timestamp: std::time::SystemTime::now()
|
||||
.duration_since(std::time::UNIX_EPOCH)
|
||||
.unwrap()
|
||||
.as_secs(),
|
||||
nonce: 0,
|
||||
signatures: vec![],
|
||||
};
|
||||
|
||||
// 中继消息
|
||||
self.relayer.relay_message(message).await?;
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl BridgeManager for BridgeManagerImpl {
|
||||
async fn initialize(&self) -> Result<()> {
|
||||
log::info!("Initializing bridge manager");
|
||||
|
||||
// 加载验证器
|
||||
self.validator_pool.load_validators().await?;
|
||||
|
||||
// TODO: 加载其他持久化数据
|
||||
|
||||
log::info!("Bridge manager initialized");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn start(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if *is_running {
|
||||
return Err(BridgeError::Other("Bridge already running".to_string()));
|
||||
}
|
||||
|
||||
// 启动中继节点
|
||||
self.relayer.start().await?;
|
||||
|
||||
// 启动所有监听器
|
||||
let listeners = self.listeners.read().await;
|
||||
for (chain_id, listener) in listeners.iter() {
|
||||
listener.start().await?;
|
||||
log::info!("Started listener for chain: {}", chain_id);
|
||||
}
|
||||
|
||||
*is_running = true;
|
||||
log::info!("Bridge started");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn stop(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if !*is_running {
|
||||
return Err(BridgeError::Other("Bridge not running".to_string()));
|
||||
}
|
||||
|
||||
// 停止所有监听器
|
||||
let listeners = self.listeners.read().await;
|
||||
for (chain_id, listener) in listeners.iter() {
|
||||
listener.stop().await?;
|
||||
log::info!("Stopped listener for chain: {}", chain_id);
|
||||
}
|
||||
|
||||
// 停止中继节点
|
||||
self.relayer.stop().await?;
|
||||
|
||||
*is_running = false;
|
||||
log::info!("Bridge stopped");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn get_config(&self) -> Result<BridgeConfig> {
|
||||
let config = self.config.read().await;
|
||||
Ok(config.clone())
|
||||
}
|
||||
|
||||
async fn update_config(&self, new_config: BridgeConfig) -> Result<()> {
|
||||
let mut config = self.config.write().await;
|
||||
*config = new_config;
|
||||
log::info!("Bridge config updated");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn pause(&self) -> Result<()> {
|
||||
let mut config = self.config.write().await;
|
||||
config.is_paused = true;
|
||||
log::info!("Bridge paused");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn resume(&self) -> Result<()> {
|
||||
let mut config = self.config.write().await;
|
||||
config.is_paused = false;
|
||||
log::info!("Bridge resumed");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn get_status(&self) -> Result<BridgeStatus> {
|
||||
let is_running = *self.is_running.read().await;
|
||||
let config = self.config.read().await;
|
||||
let active_validators = self.validator_pool.get_active_validators().await?.len();
|
||||
|
||||
Ok(BridgeStatus {
|
||||
is_running,
|
||||
is_paused: config.is_paused,
|
||||
total_locked: 0, // TODO: 计算实际值
|
||||
total_unlocked: 0, // TODO: 计算实际值
|
||||
active_validators,
|
||||
active_relayers: 1, // TODO: 支持多个中继节点
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_initialize_bridge() {
|
||||
let manager = BridgeManagerImpl::new("/tmp/test_bridge_db").unwrap();
|
||||
manager.initialize().await.unwrap();
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_start_stop_bridge() {
|
||||
let manager = BridgeManagerImpl::new("/tmp/test_bridge_db2").unwrap();
|
||||
manager.initialize().await.unwrap();
|
||||
|
||||
manager.start().await.unwrap();
|
||||
assert!(*manager.is_running.read().await);
|
||||
|
||||
manager.stop().await.unwrap();
|
||||
assert!(!*manager.is_running.read().await);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_pause_resume_bridge() {
|
||||
let manager = BridgeManagerImpl::new("/tmp/test_bridge_db3").unwrap();
|
||||
manager.initialize().await.unwrap();
|
||||
|
||||
manager.pause().await.unwrap();
|
||||
let config = manager.get_config().await.unwrap();
|
||||
assert!(config.is_paused);
|
||||
|
||||
manager.resume().await.unwrap();
|
||||
let config = manager.get_config().await.unwrap();
|
||||
assert!(!config.is_paused);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_get_status() {
|
||||
let manager = BridgeManagerImpl::new("/tmp/test_bridge_db4").unwrap();
|
||||
manager.initialize().await.unwrap();
|
||||
|
||||
let status = manager.get_status().await.unwrap();
|
||||
assert!(!status.is_running);
|
||||
assert!(!status.is_paused);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,338 @@
|
|||
use crate::types::*;
|
||||
use crate::locker::AssetLocker;
|
||||
use crate::unlocker::AssetUnlocker;
|
||||
use crate::validator::ValidatorPool;
|
||||
use async_trait::async_trait;
|
||||
use std::sync::Arc;
|
||||
use tokio::sync::RwLock;
|
||||
use sled::Db;
|
||||
|
||||
/// 中继节点trait
|
||||
#[async_trait]
|
||||
pub trait Relayer: Send + Sync {
|
||||
/// 启动中继节点
|
||||
async fn start(&self) -> Result<()>;
|
||||
|
||||
/// 停止中继节点
|
||||
async fn stop(&self) -> Result<()>;
|
||||
|
||||
/// 中继消息
|
||||
async fn relay_message(&self, message: CrossChainMessage) -> Result<()>;
|
||||
|
||||
/// 获取中继统计信息
|
||||
async fn get_stats(&self) -> Result<RelayerStats>;
|
||||
}
|
||||
|
||||
/// 中继统计信息
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct RelayerStats {
|
||||
pub total_relayed: u64,
|
||||
pub successful: u64,
|
||||
pub failed: u64,
|
||||
pub pending: u64,
|
||||
}
|
||||
|
||||
/// 中继节点实现
|
||||
pub struct RelayerImpl {
|
||||
db: Arc<Db>,
|
||||
locker: Arc<dyn AssetLocker>,
|
||||
unlocker: Arc<dyn AssetUnlocker>,
|
||||
validator_pool: Arc<dyn ValidatorPool>,
|
||||
config: BridgeConfig,
|
||||
is_running: Arc<RwLock<bool>>,
|
||||
stats: Arc<RwLock<RelayerStats>>,
|
||||
}
|
||||
|
||||
impl RelayerImpl {
|
||||
pub fn new(
|
||||
db: Arc<Db>,
|
||||
locker: Arc<dyn AssetLocker>,
|
||||
unlocker: Arc<dyn AssetUnlocker>,
|
||||
validator_pool: Arc<dyn ValidatorPool>,
|
||||
config: BridgeConfig,
|
||||
) -> Self {
|
||||
Self {
|
||||
db,
|
||||
locker,
|
||||
unlocker,
|
||||
validator_pool,
|
||||
config,
|
||||
is_running: Arc::new(RwLock::new(false)),
|
||||
stats: Arc::new(RwLock::new(RelayerStats {
|
||||
total_relayed: 0,
|
||||
successful: 0,
|
||||
failed: 0,
|
||||
pending: 0,
|
||||
})),
|
||||
}
|
||||
}
|
||||
|
||||
/// 验证消息
|
||||
async fn validate_message(&self, message: &CrossChainMessage) -> Result<()> {
|
||||
// 检查桥接是否暂停
|
||||
if self.config.is_paused {
|
||||
return Err(BridgeError::BridgePaused);
|
||||
}
|
||||
|
||||
// 验证签名
|
||||
if !self.validator_pool.verify_message_signatures(message).await? {
|
||||
return Err(BridgeError::InvalidMessage("Invalid signatures".to_string()));
|
||||
}
|
||||
|
||||
// 检查消息是否已处理（防止重放攻击）
|
||||
if self.is_message_processed(&message.id)? {
|
||||
return Err(BridgeError::DuplicateMessage(message.id));
|
||||
}
|
||||
|
||||
// 验证金额限制
|
||||
if message.amount > self.config.max_single_amount {
|
||||
return Err(BridgeError::AmountExceedsLimit {
|
||||
amount: message.amount,
|
||||
limit: self.config.max_single_amount,
|
||||
});
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 检查消息是否已处理
|
||||
fn is_message_processed(&self, message_id: &Hash) -> Result<bool> {
|
||||
let key = format!("processed:{}", hex::encode(message_id));
|
||||
Ok(self.db.contains_key(key.as_bytes())
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?)
|
||||
}
|
||||
|
||||
/// 标记消息已处理
|
||||
fn mark_message_processed(&self, message_id: &Hash) -> Result<()> {
|
||||
let key = format!("processed:{}", hex::encode(message_id));
|
||||
self.db.insert(key.as_bytes(), b"1")
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 处理锁定消息
|
||||
async fn handle_lock_message(&self, message: &CrossChainMessage) -> Result<()> {
|
||||
log::info!(
|
||||
"Handling lock message: id={}, amount={}",
|
||||
hex::encode(message.id),
|
||||
message.amount
|
||||
);
|
||||
|
||||
// 锁定资产
|
||||
let receipt = self.locker.lock_asset(
|
||||
message.asset.clone(),
|
||||
message.amount,
|
||||
message.target_chain,
|
||||
message.receiver,
|
||||
).await?;
|
||||
|
||||
// 更新锁定状态
|
||||
self.locker.update_lock_status(receipt.lock_id, LockStatus::Locked).await?;
|
||||
|
||||
// TODO: 在目标链上铸造资产
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 处理解锁消息
|
||||
async fn handle_unlock_message(&self, message: &CrossChainMessage) -> Result<()> {
|
||||
log::info!(
|
||||
"Handling unlock message: id={}, amount={}",
|
||||
hex::encode(message.id),
|
||||
message.amount
|
||||
);
|
||||
|
||||
// TODO: 验证销毁证明
|
||||
let proof = UnlockProof {
|
||||
burn_tx_hash: Hash::from([0u8; 48]),
|
||||
burn_block_number: 0,
|
||||
burn_block_hash: Hash::from([0u8; 48]),
|
||||
merkle_proof: vec![],
|
||||
signatures: message.signatures.clone(),
|
||||
};
|
||||
|
||||
// 解锁资产
|
||||
let lock_id = message.id; // 简化实现
|
||||
let _receipt = self.unlocker.unlock_asset(lock_id, proof).await?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 更新统计信息
|
||||
async fn update_stats(&self, success: bool) {
|
||||
let mut stats = self.stats.write().await;
|
||||
stats.total_relayed += 1;
|
||||
if success {
|
||||
stats.successful += 1;
|
||||
} else {
|
||||
stats.failed += 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Relayer for RelayerImpl {
|
||||
async fn start(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if *is_running {
|
||||
return Err(BridgeError::Other("Relayer already running".to_string()));
|
||||
}
|
||||
|
||||
*is_running = true;
|
||||
log::info!("Relayer started");
|
||||
|
||||
// TODO: 启动事件监听器
|
||||
// TODO: 启动消息处理循环
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn stop(&self) -> Result<()> {
|
||||
let mut is_running = self.is_running.write().await;
|
||||
if !*is_running {
|
||||
return Err(BridgeError::Other("Relayer not running".to_string()));
|
||||
}
|
||||
|
||||
*is_running = false;
|
||||
log::info!("Relayer stopped");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn relay_message(&self, message: CrossChainMessage) -> Result<()> {
|
||||
// 验证消息
|
||||
self.validate_message(&message).await?;
|
||||
|
||||
// 根据消息类型处理
|
||||
let result = match message.message_type {
|
||||
MessageType::Lock => self.handle_lock_message(&message).await,
|
||||
MessageType::Unlock => self.handle_unlock_message(&message).await,
|
||||
MessageType::Mint => {
|
||||
// TODO: 实现铸造逻辑
|
||||
Ok(())
|
||||
}
|
||||
MessageType::Burn => {
|
||||
// TODO: 实现销毁逻辑
|
||||
Ok(())
|
||||
}
|
||||
};
|
||||
|
||||
// 更新统计信息
|
||||
self.update_stats(result.is_ok()).await;
|
||||
|
||||
// 标记消息已处理
|
||||
if result.is_ok() {
|
||||
self.mark_message_processed(&message.id)?;
|
||||
}
|
||||
|
||||
result
|
||||
}
|
||||
|
||||
async fn get_stats(&self) -> Result<RelayerStats> {
|
||||
let stats = self.stats.read().await;
|
||||
Ok(stats.clone())
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use crate::locker::AssetLockerImpl;
|
||||
use crate::unlocker::AssetUnlockerImpl;
|
||||
use crate::validator::ValidatorPoolImpl;
|
||||
|
||||
async fn create_test_relayer() -> RelayerImpl {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
|
||||
let locker = Arc::new(AssetLockerImpl::new(db.clone(), config.clone()));
|
||||
let unlocker = Arc::new(AssetUnlockerImpl::new(db.clone(), config.clone()));
|
||||
let validator_pool = Arc::new(ValidatorPoolImpl::new(db.clone(), config.clone()));
|
||||
|
||||
// 添加测试验证器
|
||||
let validator = ValidatorInfo {
|
||||
address: [1u8; 32],
|
||||
stake_amount: 10000 * 10u128.pow(18),
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
// 使用register_validator方法添加验证器
|
||||
validator_pool.register_validator(validator).await.unwrap();
|
||||
|
||||
RelayerImpl::new(db, locker, unlocker, validator_pool, config)
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_start_stop_relayer() {
|
||||
let relayer = create_test_relayer().await;
|
||||
|
||||
relayer.start().await.unwrap();
|
||||
assert!(*relayer.is_running.read().await);
|
||||
|
||||
relayer.stop().await.unwrap();
|
||||
assert!(!*relayer.is_running.read().await);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_relay_lock_message() {
|
||||
let relayer = create_test_relayer().await;
|
||||
|
||||
let message = CrossChainMessage {
|
||||
id: Hash::from([1u8; 48]),
|
||||
source_chain: ChainId::NAC,
|
||||
target_chain: ChainId::Ethereum,
|
||||
message_type: MessageType::Lock,
|
||||
asset: AssetInfo {
|
||||
asset_id: Hash::from([2u8; 48]),
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
},
|
||||
sender: [3u8; 32],
|
||||
receiver: [4u8; 32],
|
||||
amount: 1000 * 10u128.pow(18),
|
||||
timestamp: 1234567890,
|
||||
nonce: 1,
|
||||
signatures: vec![Signature::from([5u8; 96]), Signature::from([6u8; 96])],
|
||||
};
|
||||
|
||||
relayer.relay_message(message).await.unwrap();
|
||||
|
||||
let stats = relayer.get_stats().await.unwrap();
|
||||
assert_eq!(stats.total_relayed, 1);
|
||||
assert_eq!(stats.successful, 1);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_duplicate_message() {
|
||||
let relayer = create_test_relayer().await;
|
||||
|
||||
let message = CrossChainMessage {
|
||||
id: Hash::from([1u8; 48]),
|
||||
source_chain: ChainId::NAC,
|
||||
target_chain: ChainId::Ethereum,
|
||||
message_type: MessageType::Lock,
|
||||
asset: AssetInfo {
|
||||
asset_id: Hash::from([2u8; 48]),
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
},
|
||||
sender: [3u8; 32],
|
||||
receiver: [4u8; 32],
|
||||
amount: 1000 * 10u128.pow(18),
|
||||
timestamp: 1234567890,
|
||||
nonce: 1,
|
||||
signatures: vec![Signature::from([5u8; 96]), Signature::from([6u8; 96])],
|
||||
};
|
||||
|
||||
// 第一次中继成功
|
||||
relayer.relay_message(message.clone()).await.unwrap();
|
||||
|
||||
// 第二次中继应该失败（重复消息）
|
||||
let result = relayer.relay_message(message).await;
|
||||
assert!(matches!(result, Err(BridgeError::DuplicateMessage(_))));
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,415 @@
|
|||
use serde::{Deserialize, Serialize, Deserializer, Serializer};
|
||||
use std::fmt;
|
||||
|
||||
// 为大数组实现serde支持
|
||||
mod serde_arrays {
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
|
||||
pub fn serialize_48<S>(data: &[u8; 48], serializer: S) -> Result<S::Ok, S::Error>
|
||||
where
|
||||
S: Serializer,
|
||||
{
|
||||
data.as_slice().serialize(serializer)
|
||||
}
|
||||
|
||||
pub fn deserialize_48<'de, D>(deserializer: D) -> Result<[u8; 48], D::Error>
|
||||
where
|
||||
D: Deserializer<'de>,
|
||||
{
|
||||
let vec: Vec<u8> = Deserialize::deserialize(deserializer)?;
|
||||
let mut arr = [0u8; 48];
|
||||
arr.copy_from_slice(&vec);
|
||||
Ok(arr)
|
||||
}
|
||||
|
||||
pub fn serialize_96<S>(data: &[u8; 96], serializer: S) -> Result<S::Ok, S::Error>
|
||||
where
|
||||
S: Serializer,
|
||||
{
|
||||
data.as_slice().serialize(serializer)
|
||||
}
|
||||
|
||||
pub fn deserialize_96<'de, D>(deserializer: D) -> Result<[u8; 96], D::Error>
|
||||
where
|
||||
D: Deserializer<'de>,
|
||||
{
|
||||
let vec: Vec<u8> = Deserialize::deserialize(deserializer)?;
|
||||
let mut arr = [0u8; 96];
|
||||
arr.copy_from_slice(&vec);
|
||||
Ok(arr)
|
||||
}
|
||||
}
|
||||
|
||||
/// NAC原生地址类型：32字节（与以太坊不同）
|
||||
pub type Address = [u8; 32];
|
||||
|
||||
/// NAC原生哈希类型：48字节（SHA3-384，与以太坊的32字节不同）
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
|
||||
pub struct Hash(
|
||||
#[serde(serialize_with = "serde_arrays::serialize_48", deserialize_with = "serde_arrays::deserialize_48")]
|
||||
pub [u8; 48]
|
||||
);
|
||||
|
||||
impl Hash {
|
||||
pub fn as_bytes(&self) -> &[u8; 48] {
|
||||
&self.0
|
||||
}
|
||||
|
||||
pub fn from_bytes(bytes: [u8; 48]) -> Self {
|
||||
Self(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<[u8; 48]> for Hash {
|
||||
fn from(bytes: [u8; 48]) -> Self {
|
||||
Self(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
impl AsRef<[u8]> for Hash {
|
||||
fn as_ref(&self) -> &[u8] {
|
||||
&self.0
|
||||
}
|
||||
}
|
||||
|
||||
/// 资产ID（使用NAC的48字节哈希）
|
||||
pub type AssetId = Hash;
|
||||
|
||||
/// 金额类型（使用u128表示，支持最大18位小数）
|
||||
pub type Amount = u128;
|
||||
/// 签名类型（NAC原生签名，可能与以太坊不同）
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
|
||||
pub struct Signature(
|
||||
#[serde(serialize_with = "serde_arrays::serialize_96", deserialize_with = "serde_arrays::deserialize_96")]
|
||||
pub [u8; 96]
|
||||
);
|
||||
|
||||
impl Signature {
|
||||
pub fn as_bytes(&self) -> &[u8; 96] {
|
||||
&self.0
|
||||
}
|
||||
|
||||
pub fn from_bytes(bytes: [u8; 96]) -> Self {
|
||||
Self(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<[u8; 96]> for Signature {
|
||||
fn from(bytes: [u8; 96]) -> Self {
|
||||
Self(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
/// 链ID枚举
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
|
||||
pub enum ChainId {
|
||||
NAC = 1,
|
||||
Ethereum = 2,
|
||||
BSC = 3,
|
||||
Polygon = 4,
|
||||
}
|
||||
|
||||
impl fmt::Display for ChainId {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
match self {
|
||||
ChainId::NAC => write!(f, "NAC"),
|
||||
ChainId::Ethereum => write!(f, "Ethereum"),
|
||||
ChainId::BSC => write!(f, "BSC"),
|
||||
ChainId::Polygon => write!(f, "Polygon"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// 消息类型
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
|
||||
pub enum MessageType {
|
||||
Lock, // 锁定资产
|
||||
Unlock, // 解锁资产
|
||||
Mint, // 铸造包装资产
|
||||
Burn, // 销毁包装资产
|
||||
}
|
||||
|
||||
/// 资产信息
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
|
||||
pub struct AssetInfo {
|
||||
pub asset_id: AssetId,
|
||||
pub name: String,
|
||||
pub symbol: String,
|
||||
pub decimals: u8,
|
||||
pub chain_id: ChainId,
|
||||
}
|
||||
|
||||
/// 跨链消息（使用NAC原生类型）
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct CrossChainMessage {
|
||||
/// 消息ID（NAC的48字节哈希）
|
||||
pub id: Hash,
|
||||
|
||||
/// 源链ID
|
||||
pub source_chain: ChainId,
|
||||
|
||||
/// 目标链ID
|
||||
pub target_chain: ChainId,
|
||||
|
||||
/// 消息类型
|
||||
pub message_type: MessageType,
|
||||
|
||||
/// 资产信息
|
||||
pub asset: AssetInfo,
|
||||
|
||||
/// 发送者地址（NAC的32字节地址）
|
||||
pub sender: Address,
|
||||
|
||||
/// 接收者地址（NAC的32字节地址）
|
||||
pub receiver: Address,
|
||||
|
||||
/// 金额
|
||||
pub amount: Amount,
|
||||
|
||||
/// 时间戳
|
||||
pub timestamp: u64,
|
||||
|
||||
/// Nonce（防重放）
|
||||
pub nonce: u64,
|
||||
|
||||
/// 签名列表（NAC原生签名）
|
||||
pub signatures: Vec<Signature>,
|
||||
}
|
||||
|
||||
/// 锁定收据
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct LockReceipt {
|
||||
pub lock_id: Hash,
|
||||
pub asset: AssetInfo,
|
||||
pub amount: Amount,
|
||||
pub locker: Address,
|
||||
pub target_chain: ChainId,
|
||||
pub receiver: Address,
|
||||
pub timestamp: u64,
|
||||
pub status: LockStatus,
|
||||
}
|
||||
|
||||
/// 锁定状态
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
|
||||
pub enum LockStatus {
|
||||
Pending, // 待处理
|
||||
Locked, // 已锁定
|
||||
Confirmed, // 已确认
|
||||
Minted, // 已铸造
|
||||
Failed, // 失败
|
||||
Refunded, // 已退款
|
||||
}
|
||||
|
||||
/// 解锁收据
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct UnlockReceipt {
|
||||
pub unlock_id: Hash,
|
||||
pub lock_id: Hash,
|
||||
pub asset: AssetInfo,
|
||||
pub amount: Amount,
|
||||
pub receiver: Address,
|
||||
pub timestamp: u64,
|
||||
pub status: UnlockStatus,
|
||||
}
|
||||
|
||||
/// 解锁状态
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
|
||||
pub enum UnlockStatus {
|
||||
Pending, // 待处理
|
||||
Verified, // 已验证
|
||||
Unlocked, // 已解锁
|
||||
Failed, // 失败
|
||||
}
|
||||
|
||||
/// 解锁证明（使用NAC的48字节哈希）
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct UnlockProof {
|
||||
pub burn_tx_hash: Hash,
|
||||
pub burn_block_number: u64,
|
||||
pub burn_block_hash: Hash,
|
||||
pub merkle_proof: Vec<Hash>,
|
||||
pub signatures: Vec<Signature>,
|
||||
}
|
||||
|
||||
/// 验证器信息
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct ValidatorInfo {
|
||||
pub address: Address,
|
||||
pub stake_amount: Amount,
|
||||
pub reputation: u64,
|
||||
pub is_active: bool,
|
||||
}
|
||||
|
||||
/// 中继节点信息
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct RelayerInfo {
|
||||
pub address: Address,
|
||||
pub stake_amount: Amount,
|
||||
pub total_relayed: u64,
|
||||
pub success_rate: f64,
|
||||
pub is_active: bool,
|
||||
}
|
||||
|
||||
/// 桥接配置
|
||||
#[derive(Debug, Clone, Serialize, Deserialize)]
|
||||
pub struct BridgeConfig {
|
||||
/// 最小确认区块数
|
||||
pub min_confirmations: u64,
|
||||
|
||||
/// 最大单笔金额
|
||||
pub max_single_amount: Amount,
|
||||
|
||||
/// 日累计限额
|
||||
pub daily_limit: Amount,
|
||||
|
||||
/// 手续费率（基点，1基点=0.01%）
|
||||
pub fee_rate: u16,
|
||||
|
||||
/// 最小验证器签名数
|
||||
pub min_validator_signatures: usize,
|
||||
|
||||
/// 是否暂停
|
||||
pub is_paused: bool,
|
||||
}
|
||||
|
||||
impl Default for BridgeConfig {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
min_confirmations: 12,
|
||||
max_single_amount: 100_000 * 10u128.pow(18), // 100,000 tokens
|
||||
daily_limit: 1_000_000 * 10u128.pow(18), // 1,000,000 tokens
|
||||
fee_rate: 10, // 0.1%
|
||||
min_validator_signatures: 2, // 2/3 of validators
|
||||
is_paused: false,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// 地址转换工具（NAC 32字节 <-> 以太坊 20字节）
|
||||
pub mod address_converter {
|
||||
use super::Address;
|
||||
|
||||
/// 以太坊地址类型（20字节）
|
||||
pub type EthAddress = [u8; 20];
|
||||
|
||||
/// NAC地址转以太坊地址（取前20字节）
|
||||
pub fn nac_to_eth(nac_addr: &Address) -> EthAddress {
|
||||
let mut eth_addr = [0u8; 20];
|
||||
eth_addr.copy_from_slice(&nac_addr[..20]);
|
||||
eth_addr
|
||||
}
|
||||
|
||||
/// 以太坊地址转NAC地址（补零到32字节）
|
||||
pub fn eth_to_nac(eth_addr: &EthAddress) -> Address {
|
||||
let mut nac_addr = [0u8; 32];
|
||||
nac_addr[..20].copy_from_slice(eth_addr);
|
||||
nac_addr
|
||||
}
|
||||
}
|
||||
|
||||
/// 哈希转换工具（NAC 48字节 <-> 以太坊 32字节）
|
||||
pub mod hash_converter {
|
||||
use super::Hash;
|
||||
|
||||
/// 以太坊哈希类型（32字节）
|
||||
pub type EthHash = [u8; 32];
|
||||
|
||||
/// NAC哈希转以太坊哈希（取前32字节）
|
||||
pub fn nac_to_eth(nac_hash: &Hash) -> EthHash {
|
||||
let mut eth_hash = [0u8; 32];
|
||||
eth_hash.copy_from_slice(&nac_hash.as_ref()[..32]);
|
||||
eth_hash
|
||||
}
|
||||
|
||||
/// 以太坊哈希转NAC哈希（补零到48字节）
|
||||
pub fn eth_to_nac(eth_hash: &EthHash) -> Hash {
|
||||
let mut nac_hash = [0u8; 48];
|
||||
nac_hash[..32].copy_from_slice(eth_hash);
|
||||
Hash::from(nac_hash)
|
||||
}
|
||||
}
|
||||
|
||||
/// 错误类型
|
||||
#[derive(Debug, thiserror::Error)]
|
||||
pub enum BridgeError {
|
||||
#[error("Invalid message: {0}")]
|
||||
InvalidMessage(String),
|
||||
|
||||
#[error("Insufficient signatures: got {got}, required {required}")]
|
||||
InsufficientSignatures { got: usize, required: usize },
|
||||
|
||||
#[error("Amount exceeds limit: {amount} > {limit}")]
|
||||
AmountExceedsLimit { amount: Amount, limit: Amount },
|
||||
|
||||
#[error("Bridge is paused")]
|
||||
BridgePaused,
|
||||
|
||||
#[error("Asset not supported: {0:?}")]
|
||||
AssetNotSupported(AssetId),
|
||||
|
||||
#[error("Lock not found: {0:?}")]
|
||||
LockNotFound(Hash),
|
||||
|
||||
#[error("Invalid proof")]
|
||||
InvalidProof,
|
||||
|
||||
#[error("Duplicate message: {0:?}")]
|
||||
DuplicateMessage(Hash),
|
||||
|
||||
#[error("Database error: {0}")]
|
||||
DatabaseError(String),
|
||||
|
||||
#[error("Network error: {0}")]
|
||||
NetworkError(String),
|
||||
|
||||
#[error("NVM error: {0}")]
|
||||
NVMError(String),
|
||||
|
||||
#[error("NRPC error: {0}")]
|
||||
NRPCError(String),
|
||||
|
||||
#[error("Charter contract error: {0}")]
|
||||
CharterError(String),
|
||||
|
||||
#[error("Other error: {0}")]
|
||||
Other(String),
|
||||
}
|
||||
|
||||
pub type Result<T> = std::result::Result<T, BridgeError>;
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use super::address_converter::*;
|
||||
use super::hash_converter::*;
|
||||
|
||||
#[test]
|
||||
fn test_address_conversion() {
|
||||
let nac_addr: Address = [1u8; 32];
|
||||
let eth_addr = address_converter::nac_to_eth(&nac_addr);
|
||||
assert_eq!(eth_addr.len(), 20);
|
||||
assert_eq!(eth_addr[0], 1);
|
||||
|
||||
let nac_addr2 = address_converter::eth_to_nac(ð_addr);
|
||||
assert_eq!(nac_addr2.len(), 32);
|
||||
assert_eq!(&nac_addr2[..20], ð_addr[..]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_hash_conversion() {
|
||||
let nac_hash = Hash::from([2u8; 48]);
|
||||
let eth_hash = hash_converter::nac_to_eth(&nac_hash);
|
||||
assert_eq!(eth_hash.len(), 32);
|
||||
assert_eq!(eth_hash[0], 2);
|
||||
|
||||
let nac_hash2 = hash_converter::eth_to_nac(ð_hash);
|
||||
assert_eq!(nac_hash2.as_bytes().len(), 48);
|
||||
assert_eq!(&nac_hash2.as_ref()[..32], ð_hash[..]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_chain_id_display() {
|
||||
assert_eq!(format!("{}", ChainId::NAC), "NAC");
|
||||
assert_eq!(format!("{}", ChainId::Ethereum), "Ethereum");
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,309 @@
|
|||
use crate::types::*;
|
||||
use async_trait::async_trait;
|
||||
use sled::Db;
|
||||
use std::sync::Arc;
|
||||
use sha3::{Digest, Sha3_384}; // 使用SHA3-384
|
||||
|
||||
/// 资产解锁器trait
|
||||
#[async_trait]
|
||||
pub trait AssetUnlocker: Send + Sync {
|
||||
/// 解锁资产
|
||||
async fn unlock_asset(
|
||||
&self,
|
||||
lock_id: Hash,
|
||||
proof: UnlockProof,
|
||||
) -> Result<UnlockReceipt>;
|
||||
|
||||
/// 验证解锁证明
|
||||
async fn verify_unlock_proof(&self, proof: &UnlockProof) -> Result<bool>;
|
||||
|
||||
/// 获取解锁收据
|
||||
async fn get_unlock_receipt(&self, unlock_id: Hash) -> Result<UnlockReceipt>;
|
||||
|
||||
/// 查询解锁状态
|
||||
async fn get_unlock_status(&self, unlock_id: Hash) -> Result<UnlockStatus>;
|
||||
}
|
||||
|
||||
/// 资产解锁器实现
|
||||
pub struct AssetUnlockerImpl {
|
||||
db: Arc<Db>,
|
||||
config: BridgeConfig,
|
||||
}
|
||||
|
||||
impl AssetUnlockerImpl {
|
||||
pub fn new(db: Arc<Db>, config: BridgeConfig) -> Self {
|
||||
Self { db, config }
|
||||
}
|
||||
|
||||
/// 生成解锁ID（使用NAC的SHA3-384）
|
||||
fn generate_unlock_id(&self, lock_id: &Hash, timestamp: u64) -> Hash {
|
||||
let mut hasher = Sha3_384::new();
|
||||
hasher.update(lock_id.as_ref());
|
||||
hasher.update(×tamp.to_le_bytes());
|
||||
let result = hasher.finalize();
|
||||
let mut hash_bytes = [0u8; 48];
|
||||
hash_bytes.copy_from_slice(&result);
|
||||
Hash::from(hash_bytes)
|
||||
}
|
||||
|
||||
/// 验证Merkle证明（使用NAC的48字节哈希）
|
||||
fn verify_merkle_proof(
|
||||
&self,
|
||||
leaf: Hash,
|
||||
proof: &[Hash],
|
||||
root: Hash,
|
||||
) -> bool {
|
||||
let mut current = leaf;
|
||||
|
||||
for sibling in proof {
|
||||
let mut hasher = Sha3_384::new();
|
||||
if current < *sibling {
|
||||
hasher.update(current.as_ref());
|
||||
hasher.update(sibling.as_ref());
|
||||
} else {
|
||||
hasher.update(sibling.as_ref());
|
||||
hasher.update(current.as_ref());
|
||||
}
|
||||
let result = hasher.finalize();
|
||||
let mut hash_bytes = [0u8; 48];
|
||||
hash_bytes.copy_from_slice(&result);
|
||||
current = Hash::from(hash_bytes);
|
||||
}
|
||||
|
||||
current == root
|
||||
}
|
||||
|
||||
/// 验证签名数量
|
||||
fn verify_signature_count(&self, signatures: &[Signature]) -> Result<()> {
|
||||
if signatures.len() < self.config.min_validator_signatures {
|
||||
return Err(BridgeError::InsufficientSignatures {
|
||||
got: signatures.len(),
|
||||
required: self.config.min_validator_signatures,
|
||||
});
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 保存解锁收据
|
||||
fn save_unlock_receipt(&self, receipt: &UnlockReceipt) -> Result<()> {
|
||||
let key = format!("unlock:{}", hex::encode(receipt.unlock_id));
|
||||
let value = bincode::serialize(receipt)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
self.db.insert(key.as_bytes(), value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 加载解锁收据
|
||||
fn load_unlock_receipt(&self, unlock_id: Hash) -> Result<UnlockReceipt> {
|
||||
let key = format!("unlock:{}", hex::encode(unlock_id));
|
||||
|
||||
let value = self.db.get(key.as_bytes())
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?
|
||||
.ok_or(BridgeError::Other(format!("Unlock not found: {:?}", unlock_id)))?;
|
||||
|
||||
let receipt = bincode::deserialize(&value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(receipt)
|
||||
}
|
||||
|
||||
/// 加载锁定收据
|
||||
fn load_lock_receipt(&self, lock_id: Hash) -> Result<LockReceipt> {
|
||||
let key = format!("lock:{}", hex::encode(lock_id));
|
||||
|
||||
let value = self.db.get(key.as_bytes())
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?
|
||||
.ok_or(BridgeError::LockNotFound(lock_id))?;
|
||||
|
||||
let receipt = bincode::deserialize(&value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(receipt)
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl AssetUnlocker for AssetUnlockerImpl {
|
||||
async fn unlock_asset(
|
||||
&self,
|
||||
lock_id: Hash,
|
||||
proof: UnlockProof,
|
||||
) -> Result<UnlockReceipt> {
|
||||
// 检查桥接是否暂停
|
||||
if self.config.is_paused {
|
||||
return Err(BridgeError::BridgePaused);
|
||||
}
|
||||
|
||||
// 验证解锁证明
|
||||
if !self.verify_unlock_proof(&proof).await? {
|
||||
return Err(BridgeError::InvalidProof);
|
||||
}
|
||||
|
||||
// 加载锁定收据
|
||||
let lock_receipt = self.load_lock_receipt(lock_id)?;
|
||||
|
||||
// 检查锁定状态
|
||||
if lock_receipt.status != LockStatus::Minted {
|
||||
return Err(BridgeError::InvalidMessage(
|
||||
format!("Invalid lock status: {:?}", lock_receipt.status)
|
||||
));
|
||||
}
|
||||
|
||||
// 生成解锁ID
|
||||
let timestamp = std::time::SystemTime::now()
|
||||
.duration_since(std::time::UNIX_EPOCH)
|
||||
.unwrap()
|
||||
.as_secs();
|
||||
|
||||
let unlock_id = self.generate_unlock_id(&lock_id, timestamp);
|
||||
|
||||
// 创建解锁收据
|
||||
let receipt = UnlockReceipt {
|
||||
unlock_id,
|
||||
lock_id,
|
||||
asset: lock_receipt.asset.clone(),
|
||||
amount: lock_receipt.amount,
|
||||
receiver: lock_receipt.receiver,
|
||||
timestamp,
|
||||
status: UnlockStatus::Pending,
|
||||
};
|
||||
|
||||
// 保存解锁收据
|
||||
self.save_unlock_receipt(&receipt)?;
|
||||
|
||||
log::info!(
|
||||
"Asset unlocked: unlock_id={}, lock_id={}, amount={}",
|
||||
hex::encode(unlock_id),
|
||||
hex::encode(lock_id),
|
||||
lock_receipt.amount
|
||||
);
|
||||
|
||||
Ok(receipt)
|
||||
}
|
||||
|
||||
async fn verify_unlock_proof(&self, proof: &UnlockProof) -> Result<bool> {
|
||||
// 验证签名数量
|
||||
self.verify_signature_count(&proof.signatures)?;
|
||||
|
||||
// TODO: 验证每个签名的有效性（使用NAC的签名验证）
|
||||
// TODO: 验证区块确认数
|
||||
// TODO: 验证Merkle证明
|
||||
|
||||
// 简化实现：假设证明有效
|
||||
Ok(true)
|
||||
}
|
||||
|
||||
async fn get_unlock_receipt(&self, unlock_id: Hash) -> Result<UnlockReceipt> {
|
||||
self.load_unlock_receipt(unlock_id)
|
||||
}
|
||||
|
||||
async fn get_unlock_status(&self, unlock_id: Hash) -> Result<UnlockStatus> {
|
||||
let receipt = self.load_unlock_receipt(unlock_id)?;
|
||||
Ok(receipt.status)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use crate::locker::{AssetLocker, AssetLockerImpl};
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_unlock_asset() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
|
||||
// 先锁定资产
|
||||
let locker = AssetLockerImpl::new(db.clone(), config.clone());
|
||||
let asset = AssetInfo {
|
||||
asset_id: Hash::from([1u8; 48]), // NAC的48字节哈希
|
||||
name: "Test Token".to_string(),
|
||||
symbol: "TEST".to_string(),
|
||||
decimals: 18,
|
||||
chain_id: ChainId::NAC,
|
||||
};
|
||||
|
||||
let mut lock_receipt = locker.lock_asset(
|
||||
asset,
|
||||
1000 * 10u128.pow(18),
|
||||
ChainId::Ethereum,
|
||||
[2u8; 32], // NAC的32字节地址
|
||||
).await.unwrap();
|
||||
|
||||
// 更新锁定状态为已铸造
|
||||
lock_receipt.status = LockStatus::Minted;
|
||||
let key = format!("lock:{}", hex::encode(lock_receipt.lock_id));
|
||||
let value = bincode::serialize(&lock_receipt).unwrap();
|
||||
db.insert(key.as_bytes(), value).unwrap();
|
||||
|
||||
// 解锁资产
|
||||
let unlocker = AssetUnlockerImpl::new(db, config);
|
||||
let proof = UnlockProof {
|
||||
burn_tx_hash: Hash::from([3u8; 48]), // NAC的48字节哈希
|
||||
burn_block_number: 12345,
|
||||
burn_block_hash: Hash::from([4u8; 48]),
|
||||
merkle_proof: vec![],
|
||||
signatures: vec![Signature::from([5u8; 96]), Signature::from([6u8; 96])], // NAC的96字节签名
|
||||
};
|
||||
|
||||
let unlock_receipt = unlocker.unlock_asset(lock_receipt.lock_id, proof).await.unwrap();
|
||||
|
||||
assert_eq!(unlock_receipt.lock_id, lock_receipt.lock_id);
|
||||
assert_eq!(unlock_receipt.amount, lock_receipt.amount);
|
||||
assert_eq!(unlock_receipt.status, UnlockStatus::Pending);
|
||||
assert_eq!(unlock_receipt.unlock_id.as_bytes().len(), 48); // 验证是48字节哈希
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_verify_signature_count() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let unlocker = AssetUnlockerImpl::new(db, config);
|
||||
|
||||
// 签名数量不足
|
||||
let proof = UnlockProof {
|
||||
burn_tx_hash: Hash::from([3u8; 48]),
|
||||
burn_block_number: 12345,
|
||||
burn_block_hash: Hash::from([4u8; 48]),
|
||||
merkle_proof: vec![],
|
||||
signatures: vec![Signature::from([5u8; 96])], // 只有1个签名
|
||||
};
|
||||
|
||||
let result = unlocker.verify_unlock_proof(&proof).await;
|
||||
assert!(matches!(result, Err(BridgeError::InsufficientSignatures { .. })));
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_verify_merkle_proof() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let unlocker = AssetUnlockerImpl::new(db, config);
|
||||
|
||||
// 简单的Merkle树：root = hash(hash(leaf1, leaf2))
|
||||
let leaf1 = Hash::from([1u8; 48]);
|
||||
let leaf2 = Hash::from([2u8; 48]);
|
||||
|
||||
let mut hasher = Sha3_384::new();
|
||||
hasher.update(&leaf1);
|
||||
hasher.update(&leaf2);
|
||||
let result = hasher.finalize();
|
||||
let mut hash_bytes = [0u8; 48];
|
||||
hash_bytes.copy_from_slice(&result);
|
||||
let parent = Hash::from(hash_bytes);
|
||||
|
||||
// 验证leaf1的证明
|
||||
let proof = vec![leaf2];
|
||||
let result = unlocker.verify_merkle_proof(leaf1, &proof, parent);
|
||||
assert!(result);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_nac_signature_size() {
|
||||
// 验证NAC签名是96字节
|
||||
let signature = Signature::from([0u8; 96]);
|
||||
assert_eq!(signature.as_bytes().len(), 96);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,335 @@
|
|||
use crate::types::*;
|
||||
use async_trait::async_trait;
|
||||
use sled::Db;
|
||||
use std::collections::HashMap;
|
||||
use std::sync::Arc;
|
||||
use tokio::sync::RwLock;
|
||||
|
||||
/// 验证器池trait
|
||||
#[async_trait]
|
||||
pub trait ValidatorPool: Send + Sync {
|
||||
/// 注册验证器
|
||||
async fn register_validator(&self, validator: ValidatorInfo) -> Result<()>;
|
||||
|
||||
/// 注销验证器
|
||||
async fn unregister_validator(&self, address: Address) -> Result<()>;
|
||||
|
||||
/// 获取活跃验证器列表
|
||||
async fn get_active_validators(&self) -> Result<Vec<ValidatorInfo>>;
|
||||
|
||||
/// 加载验证器（从数据库）
|
||||
async fn load_validators(&self) -> Result<()>;
|
||||
|
||||
/// 验证消息签名
|
||||
async fn verify_message_signatures(
|
||||
&self,
|
||||
message: &CrossChainMessage,
|
||||
) -> Result<bool>;
|
||||
|
||||
/// 获取验证器信息
|
||||
async fn get_validator(&self, address: Address) -> Result<ValidatorInfo>;
|
||||
|
||||
/// 更新验证器声誉
|
||||
async fn update_reputation(&self, address: Address, delta: i64) -> Result<()>;
|
||||
}
|
||||
|
||||
/// 验证器池实现
|
||||
pub struct ValidatorPoolImpl {
|
||||
db: Arc<Db>,
|
||||
validators: Arc<RwLock<HashMap<Address, ValidatorInfo>>>,
|
||||
config: BridgeConfig,
|
||||
}
|
||||
|
||||
impl ValidatorPoolImpl {
|
||||
pub fn new(db: Arc<Db>, config: BridgeConfig) -> Self {
|
||||
let validators = Arc::new(RwLock::new(HashMap::new()));
|
||||
Self {
|
||||
db,
|
||||
validators,
|
||||
config,
|
||||
}
|
||||
}
|
||||
|
||||
/// 从数据库加载验证器
|
||||
pub async fn load_validators(&self) -> Result<()> {
|
||||
let prefix = b"validator:";
|
||||
let mut validators = self.validators.write().await;
|
||||
|
||||
for item in self.db.scan_prefix(prefix) {
|
||||
let (_, value) = item.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
let validator: ValidatorInfo = bincode::deserialize(&value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
validators.insert(validator.address, validator);
|
||||
}
|
||||
|
||||
log::info!("Loaded {} validators from database", validators.len());
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 保存验证器到数据库
|
||||
fn save_validator(&self, validator: &ValidatorInfo) -> Result<()> {
|
||||
let key = format!("validator:{}", hex::encode(validator.address));
|
||||
let value = bincode::serialize(validator)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
self.db.insert(key.as_bytes(), value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 从数据库删除验证器
|
||||
fn delete_validator(&self, address: Address) -> Result<()> {
|
||||
let key = format!("validator:{}", hex::encode(address));
|
||||
self.db.remove(key.as_bytes())
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// 从数据库加载所有验证器
|
||||
fn load_all_validators(&self) -> Result<Vec<ValidatorInfo>> {
|
||||
let mut validators = Vec::new();
|
||||
let prefix = b"validator:";
|
||||
|
||||
for item in self.db.scan_prefix(prefix) {
|
||||
let (_key, value) = item.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
let validator: ValidatorInfo = bincode::deserialize(&value)
|
||||
.map_err(|e| BridgeError::DatabaseError(e.to_string()))?;
|
||||
validators.push(validator);
|
||||
}
|
||||
|
||||
Ok(validators)
|
||||
}
|
||||
|
||||
/// 验证单个签名（使用NAC的签名验证）
|
||||
fn verify_signature(
|
||||
&self,
|
||||
message_hash: &Hash,
|
||||
signature: &Signature,
|
||||
validator_address: &Address,
|
||||
) -> bool {
|
||||
// TODO: 实现实际的签名验证逻辑
|
||||
// 这里简化实现，假设签名有效
|
||||
true
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl ValidatorPool for ValidatorPoolImpl {
|
||||
async fn register_validator(&self, validator: ValidatorInfo) -> Result<()> {
|
||||
// 验证质押金额
|
||||
let min_stake = 10_000 * 10u128.pow(18); // 最小质押10,000 NAC
|
||||
if validator.stake_amount < min_stake {
|
||||
return Err(BridgeError::Other(
|
||||
format!("Insufficient stake: {} < {}", validator.stake_amount, min_stake)
|
||||
));
|
||||
}
|
||||
|
||||
// 保存到数据库
|
||||
self.save_validator(&validator)?;
|
||||
|
||||
// 更新内存缓存
|
||||
let mut validators = self.validators.write().await;
|
||||
validators.insert(validator.address, validator.clone());
|
||||
|
||||
log::info!(
|
||||
"Validator registered: address={}, stake={}",
|
||||
hex::encode(validator.address),
|
||||
validator.stake_amount
|
||||
);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn unregister_validator(&self, address: Address) -> Result<()> {
|
||||
// 从数据库删除
|
||||
self.delete_validator(address)?;
|
||||
|
||||
// 从内存缓存删除
|
||||
let mut validators = self.validators.write().await;
|
||||
validators.remove(&address);
|
||||
|
||||
log::info!("Validator unregistered: address={}", hex::encode(address));
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn get_active_validators(&self) -> Result<Vec<ValidatorInfo>> {
|
||||
let validators = self.validators.read().await;
|
||||
let active: Vec<ValidatorInfo> = validators
|
||||
.values()
|
||||
.filter(|v| v.is_active)
|
||||
.cloned()
|
||||
.collect();
|
||||
|
||||
Ok(active)
|
||||
}
|
||||
|
||||
async fn verify_message_signatures(
|
||||
&self,
|
||||
message: &CrossChainMessage,
|
||||
) -> Result<bool> {
|
||||
// 检查签名数量
|
||||
if message.signatures.len() < self.config.min_validator_signatures {
|
||||
return Ok(false);
|
||||
}
|
||||
|
||||
// 获取活跃验证器
|
||||
let active_validators = self.get_active_validators().await?;
|
||||
if active_validators.is_empty() {
|
||||
return Err(BridgeError::Other("No active validators".to_string()));
|
||||
}
|
||||
|
||||
// 计算消息哈希（NAC的48字节哈希）
|
||||
let message_hash = message.id;
|
||||
|
||||
// 验证每个签名
|
||||
let mut valid_signatures = 0;
|
||||
for signature in &message.signatures {
|
||||
for validator in &active_validators {
|
||||
if self.verify_signature(&message_hash, signature, &validator.address) {
|
||||
valid_signatures += 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// 检查是否达到最小签名数
|
||||
Ok(valid_signatures >= self.config.min_validator_signatures)
|
||||
}
|
||||
|
||||
async fn get_validator(&self, address: Address) -> Result<ValidatorInfo> {
|
||||
let validators = self.validators.read().await;
|
||||
validators
|
||||
.get(&address)
|
||||
.cloned()
|
||||
.ok_or(BridgeError::Other(format!("Validator not found: {:?}", address)))
|
||||
}
|
||||
|
||||
async fn update_reputation(&self, address: Address, delta: i64) -> Result<()> {
|
||||
let mut validators = self.validators.write().await;
|
||||
|
||||
if let Some(validator) = validators.get_mut(&address) {
|
||||
if delta < 0 {
|
||||
validator.reputation = validator.reputation.saturating_sub((-delta) as u64);
|
||||
} else {
|
||||
validator.reputation = validator.reputation.saturating_add(delta as u64);
|
||||
}
|
||||
|
||||
// 保存到数据库
|
||||
self.save_validator(validator)?;
|
||||
|
||||
log::info!(
|
||||
"Validator reputation updated: address={}, new_reputation={}",
|
||||
hex::encode(address),
|
||||
validator.reputation
|
||||
);
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn load_validators(&self) -> Result<()> {
|
||||
// 加载所有验证器到内存
|
||||
let validators = self.load_all_validators()?;
|
||||
let mut validator_map = self.validators.write().await;
|
||||
for validator in validators {
|
||||
validator_map.insert(validator.address, validator);
|
||||
}
|
||||
log::info!("Loaded {} validators from database", validator_map.len());
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_register_validator() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let pool = ValidatorPoolImpl::new(db, config);
|
||||
|
||||
let validator = ValidatorInfo {
|
||||
address: [1u8; 32],
|
||||
stake_amount: 10_000 * 10u128.pow(18),
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
pool.register_validator(validator.clone()).await.unwrap();
|
||||
|
||||
let loaded = pool.get_validator(validator.address).await.unwrap();
|
||||
assert_eq!(loaded.address, validator.address);
|
||||
assert_eq!(loaded.stake_amount, validator.stake_amount);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_get_active_validators() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let pool = ValidatorPoolImpl::new(db, config);
|
||||
|
||||
// 注册2个活跃验证器
|
||||
let validator1 = ValidatorInfo {
|
||||
address: [1u8; 32],
|
||||
stake_amount: 10_000 * 10u128.pow(18),
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
let validator2 = ValidatorInfo {
|
||||
address: [2u8; 32],
|
||||
stake_amount: 20_000 * 10u128.pow(18),
|
||||
reputation: 200,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
pool.register_validator(validator1).await.unwrap();
|
||||
pool.register_validator(validator2).await.unwrap();
|
||||
|
||||
let active = pool.get_active_validators().await.unwrap();
|
||||
assert_eq!(active.len(), 2);
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_unregister_validator() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let pool = ValidatorPoolImpl::new(db, config);
|
||||
|
||||
let validator = ValidatorInfo {
|
||||
address: [1u8; 32],
|
||||
stake_amount: 10_000 * 10u128.pow(18),
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
pool.register_validator(validator.clone()).await.unwrap();
|
||||
pool.unregister_validator(validator.address).await.unwrap();
|
||||
|
||||
let result = pool.get_validator(validator.address).await;
|
||||
assert!(result.is_err());
|
||||
}
|
||||
|
||||
#[tokio::test]
|
||||
async fn test_update_reputation() {
|
||||
let db = Arc::new(sled::Config::new().temporary(true).open().unwrap());
|
||||
let config = BridgeConfig::default();
|
||||
let pool = ValidatorPoolImpl::new(db, config);
|
||||
|
||||
let validator = ValidatorInfo {
|
||||
address: [1u8; 32],
|
||||
stake_amount: 10_000 * 10u128.pow(18),
|
||||
reputation: 100,
|
||||
is_active: true,
|
||||
};
|
||||
|
||||
pool.register_validator(validator.clone()).await.unwrap();
|
||||
pool.update_reputation(validator.address, 50).await.unwrap();
|
||||
|
||||
let updated = pool.get_validator(validator.address).await.unwrap();
|
||||
assert_eq!(updated.reputation, 150);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue