404 lines
11 KiB
Rust
404 lines
11 KiB
Rust
//! 宪法历史追踪模块
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use crate::{ConstitutionVersion, Result, Error};
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use nac_udm::primitives::Address;
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use serde::{Deserialize, Serialize};
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use std::path::{Path, PathBuf};
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use std::fs;
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/// 历史记录类型
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
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pub enum HistoryRecordType {
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/// 版本创建
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VersionCreated,
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/// 升级提议
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UpgradeProposed,
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/// 升级执行
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UpgradeExecuted,
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/// 升级取消
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UpgradeCancelled,
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/// 版本回滚
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VersionRolledBack,
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}
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/// 历史记录
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct HistoryRecord {
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/// 记录类型
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pub record_type: HistoryRecordType,
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/// 版本号
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pub version: u64,
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/// 操作者地址
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pub operator: Address,
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/// 时间戳
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pub timestamp: u64,
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/// 区块高度
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pub block_height: u64,
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/// 描述
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pub description: String,
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}
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/// 审计日志
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct AuditLog {
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/// 日志ID
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pub id: u64,
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/// 历史记录
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pub record: HistoryRecord,
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/// 额外数据
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pub extra_data: String,
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}
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/// 历史查询过滤器
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#[derive(Debug, Clone)]
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pub struct HistoryFilter {
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/// 记录类型过滤
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pub record_type: Option<HistoryRecordType>,
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/// 版本号过滤
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pub version: Option<u64>,
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/// 操作者过滤
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pub operator: Option<Address>,
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/// 时间范围过滤（开始）
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pub time_from: Option<u64>,
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/// 时间范围过滤（结束）
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pub time_to: Option<u64>,
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/// 区块高度范围过滤（开始）
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pub block_from: Option<u64>,
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/// 区块高度范围过滤（结束）
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pub block_to: Option<u64>,
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}
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impl Default for HistoryFilter {
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fn default() -> Self {
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Self {
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record_type: None,
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version: None,
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operator: None,
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time_from: None,
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time_to: None,
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block_from: None,
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block_to: None,
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}
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}
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}
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/// 历史追踪器
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pub struct HistoryTracker {
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/// 历史记录列表
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records: Vec<HistoryRecord>,
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/// 审计日志列表
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audit_logs: Vec<AuditLog>,
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/// 存储路径
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storage_path: PathBuf,
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/// 下一个日志ID
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next_log_id: u64,
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}
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impl HistoryTracker {
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/// 创建新的历史追踪器
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pub fn new() -> Self {
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let temp_path = std::env::temp_dir().join("nac_history_test.json");
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Self {
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records: Vec::new(),
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audit_logs: Vec::new(),
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storage_path: temp_path,
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next_log_id: 1,
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}
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}
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/// 从存储加载历史追踪器
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pub fn load(storage_path: &Path) -> Result<Self> {
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let history_path = storage_path.join("history.json");
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if !history_path.exists() {
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return Ok(Self {
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records: Vec::new(),
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audit_logs: Vec::new(),
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storage_path: history_path,
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next_log_id: 1,
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});
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}
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let json = fs::read_to_string(&history_path)
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.map_err(|e| Error::StorageError(format!("读取历史文件失败: {}", e)))?;
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let (records, audit_logs, next_log_id) = serde_json::from_str(&json)
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.map_err(|e| Error::StorageError(format!("反序列化历史失败: {}", e)))?;
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Ok(Self {
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records,
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audit_logs,
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storage_path: history_path,
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next_log_id,
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})
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}
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/// 保存历史记录
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fn save(&self) -> Result<()> {
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if let Some(parent) = self.storage_path.parent() {
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fs::create_dir_all(parent)
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.map_err(|e| Error::StorageError(format!("创建目录失败: {}", e)))?;
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}
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let data = (&self.records, &self.audit_logs, self.next_log_id);
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let json = serde_json::to_string_pretty(&data)
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.map_err(|e| Error::StorageError(format!("序列化历史失败: {}", e)))?;
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fs::write(&self.storage_path, json)
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.map_err(|e| Error::StorageError(format!("写入历史文件失败: {}", e)))?;
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Ok(())
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}
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/// 记录版本创建
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pub fn record_version(&mut self, version: &ConstitutionVersion) -> Result<()> {
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let record = HistoryRecord {
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record_type: HistoryRecordType::VersionCreated,
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version: version.version,
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operator: version.created_by,
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timestamp: version.created_at,
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block_height: version.effective_from,
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description: format!("创建版本: {}", version.description),
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};
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self.add_record(record, String::new())?;
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Ok(())
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}
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/// 记录升级提议
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pub fn record_proposal(&mut self, version: &ConstitutionVersion, proposer: &Address) -> Result<()> {
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let record = HistoryRecord {
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record_type: HistoryRecordType::UpgradeProposed,
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version: version.version,
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operator: *proposer,
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timestamp: version.created_at,
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block_height: version.effective_from,
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description: format!("提议升级到版本{}: {}", version.version, version.description),
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};
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self.add_record(record, String::new())?;
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Ok(())
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}
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/// 记录升级执行
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pub fn record_upgrade(&mut self, version: &ConstitutionVersion, block_height: u64) -> Result<()> {
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let record = HistoryRecord {
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record_type: HistoryRecordType::UpgradeExecuted,
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version: version.version,
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operator: version.created_by,
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timestamp: version.created_at,
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block_height,
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description: format!("执行升级到版本{}", version.version),
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};
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self.add_record(record, String::new())?;
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Ok(())
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}
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/// 记录升级取消
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pub fn record_cancellation(&mut self, version: &ConstitutionVersion, canceller: &Address) -> Result<()> {
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let record = HistoryRecord {
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record_type: HistoryRecordType::UpgradeCancelled,
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version: version.version,
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operator: *canceller,
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timestamp: std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap()
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.as_secs(),
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block_height: 0,
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description: format!("取消升级到版本{}", version.version),
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};
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self.add_record(record, String::new())?;
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Ok(())
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}
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/// 记录版本回滚
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pub fn record_rollback(&mut self, version: &ConstitutionVersion, operator: &Address) -> Result<()> {
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let record = HistoryRecord {
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record_type: HistoryRecordType::VersionRolledBack,
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version: version.version,
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operator: *operator,
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timestamp: std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap()
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.as_secs(),
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block_height: 0,
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description: format!("回滚到版本{}", version.version),
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};
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self.add_record(record, String::new())?;
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Ok(())
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}
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/// 添加记录
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fn add_record(&mut self, record: HistoryRecord, extra_data: String) -> Result<()> {
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let audit_log = AuditLog {
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id: self.next_log_id,
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record: record.clone(),
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extra_data,
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};
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self.records.push(record);
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self.audit_logs.push(audit_log);
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self.next_log_id += 1;
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self.save()?;
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Ok(())
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}
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/// 查询历史记录
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pub fn query(&self, filter: HistoryFilter) -> Result<Vec<HistoryRecord>> {
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let mut results = Vec::new();
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for record in &self.records {
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// 应用过滤器
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if let Some(ref record_type) = filter.record_type {
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if &record.record_type != record_type {
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continue;
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}
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}
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if let Some(version) = filter.version {
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if record.version != version {
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continue;
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}
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}
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if let Some(operator) = filter.operator {
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if record.operator != operator {
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continue;
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}
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}
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if let Some(time_from) = filter.time_from {
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if record.timestamp < time_from {
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continue;
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}
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}
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if let Some(time_to) = filter.time_to {
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if record.timestamp > time_to {
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continue;
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}
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}
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if let Some(block_from) = filter.block_from {
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if record.block_height < block_from {
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continue;
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}
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}
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if let Some(block_to) = filter.block_to {
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if record.block_height > block_to {
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continue;
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}
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}
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results.push(record.clone());
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}
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Ok(results)
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}
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/// 获取审计日志
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pub fn get_audit_log(&self, from: u64, to: u64) -> Result<Vec<AuditLog>> {
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let logs = self.audit_logs
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.iter()
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.filter(|log| log.id >= from && log.id <= to)
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.cloned()
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.collect();
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Ok(logs)
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}
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/// 获取所有记录
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pub fn get_all_records(&self) -> &[HistoryRecord] {
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&self.records
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}
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/// 获取记录数量
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pub fn record_count(&self) -> usize {
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self.records.len()
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}
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}
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impl Default for HistoryTracker {
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fn default() -> Self {
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Self::new()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use nac_udm::primitives::Hash;
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fn create_test_version(version: u64) -> ConstitutionVersion {
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ConstitutionVersion::new(
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version,
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Hash::zero(),
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version * 1000,
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10,
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version * 100,
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Address::zero(),
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format!("Version {}", version),
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)
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}
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#[test]
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fn test_record_version() {
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let mut tracker = HistoryTracker::new();
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let version = create_test_version(1);
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assert!(tracker.record_version(&version).is_ok());
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assert_eq!(tracker.record_count(), 1);
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}
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#[test]
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fn test_query_by_type() {
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let mut tracker = HistoryTracker::new();
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let version = create_test_version(1);
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tracker.record_version(&version).unwrap();
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tracker.record_proposal(&version, &Address::zero()).unwrap();
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let filter = HistoryFilter {
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record_type: Some(HistoryRecordType::VersionCreated),
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..Default::default()
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};
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let results = tracker.query(filter).unwrap();
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assert_eq!(results.len(), 1);
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assert_eq!(results[0].record_type, HistoryRecordType::VersionCreated);
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}
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#[test]
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fn test_query_by_version() {
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let mut tracker = HistoryTracker::new();
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tracker.record_version(&create_test_version(1)).unwrap();
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tracker.record_version(&create_test_version(2)).unwrap();
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let filter = HistoryFilter {
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version: Some(1),
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..Default::default()
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};
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let results = tracker.query(filter).unwrap();
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assert_eq!(results.len(), 1);
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assert_eq!(results[0].version, 1);
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}
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#[test]
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fn test_audit_log() {
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let mut tracker = HistoryTracker::new();
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let version = create_test_version(1);
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tracker.record_version(&version).unwrap();
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let logs = tracker.get_audit_log(1, 1).unwrap();
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assert_eq!(logs.len(), 1);
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assert_eq!(logs[0].id, 1);
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}
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}
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