调整代码结构
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import * as ProxyRepository from '../proxies/proxy.repository';
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import { encrypt, decrypt } from '../utils/crypto';
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export interface ProxyData extends ProxyRepository.ProxyData {}
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export interface CreateProxyInput {
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name: string;
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type: 'SOCKS5' | 'HTTP';
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host: string;
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port: number;
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username?: string | null;
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auth_method?: 'none' | 'password' | 'key';
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password?: string | null;
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private_key?: string | null;
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passphrase?: string | null;
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}
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export interface UpdateProxyInput {
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name?: string;
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type?: 'SOCKS5' | 'HTTP';
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host?: string;
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port?: number;
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username?: string | null;
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auth_method?: 'none' | 'password' | 'key';
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password?: string | null;
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private_key?: string | null;
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passphrase?: string | null;
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}
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/**
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* 获取所有代理
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*/
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export const getAllProxies = async (): Promise<ProxyData[]> => {
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return ProxyRepository.findAllProxies();
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};
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/**
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* 根据 ID 获取单个代理
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*/
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export const getProxyById = async (id: number): Promise<ProxyData | null> => {
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return ProxyRepository.findProxyById(id);
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};
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/**
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* 创建新代理
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*/
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export const createProxy = async (input: CreateProxyInput): Promise<ProxyData> => {
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// 1. 验证输入
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if (!input.name || !input.type || !input.host || !input.port) {
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throw new Error('缺少必要的代理信息 (name, type, host, port)。');
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}
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if (input.auth_method === 'password' && !input.password) {
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throw new Error('代理密码认证方式需要提供 password。');
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}
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if (input.auth_method === 'key' && !input.private_key) {
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throw new Error('代理密钥认证方式需要提供 private_key。');
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}
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// 2. 如果提供,则加密凭证
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const encryptedPassword = input.password ? encrypt(input.password) : null;
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const encryptedPrivateKey = input.private_key ? encrypt(input.private_key) : null;
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const encryptedPassphrase = input.passphrase ? encrypt(input.passphrase) : null;
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// 3. 准备仓库数据
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const proxyData: Omit<ProxyData, 'id' | 'created_at' | 'updated_at'> = {
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name: input.name,
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type: input.type,
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host: input.host,
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port: input.port,
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username: input.username || null,
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auth_method: input.auth_method || 'none',
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encrypted_password: encryptedPassword,
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encrypted_private_key: encryptedPrivateKey,
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encrypted_passphrase: encryptedPassphrase,
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};
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// 4. 创建代理记录
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const newProxyId = await ProxyRepository.createProxy(proxyData);
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// 5. 获取并返回新创建的代理
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const newProxy = await getProxyById(newProxyId);
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if (!newProxy) {
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throw new Error('创建代理后无法检索到该代理。');
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}
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return newProxy;
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};
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/**
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* 更新代理信息
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*/
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export const updateProxy = async (id: number, input: UpdateProxyInput): Promise<ProxyData | null> => {
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// 1. 获取当前代理数据以进行比较(例如,用于认证方法更改逻辑)
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const currentProxy = await ProxyRepository.findProxyById(id);
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if (!currentProxy) {
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return null; // 未找到代理
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}
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// 2. 准备更新数据
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const dataToUpdate: Partial<Omit<ProxyData, 'id' | 'created_at'>> = {};
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let needsCredentialUpdate = false;
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const newAuthMethod = input.auth_method || currentProxy.auth_method;
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// 更新标准字段
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if (input.name !== undefined) dataToUpdate.name = input.name;
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if (input.type !== undefined) dataToUpdate.type = input.type;
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if (input.host !== undefined) dataToUpdate.host = input.host;
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if (input.port !== undefined) dataToUpdate.port = input.port;
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if (input.username !== undefined) dataToUpdate.username = input.username; // 允许清除
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// 处理认证方法更改或凭证更新
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if (input.auth_method && input.auth_method !== currentProxy.auth_method) {
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dataToUpdate.auth_method = input.auth_method;
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needsCredentialUpdate = true;
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// 根据 *新* 认证方法加密新凭证
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if (input.auth_method === 'password') {
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if (input.password === undefined) throw new Error('切换到密码认证时需要提供 password。');
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dataToUpdate.encrypted_password = input.password ? encrypt(input.password) : null;
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dataToUpdate.encrypted_private_key = null; // 清除旧密钥信息
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dataToUpdate.encrypted_passphrase = null;
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} else if (input.auth_method === 'key') {
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if (input.private_key === undefined) throw new Error('切换到密钥认证时需要提供 private_key。');
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dataToUpdate.encrypted_private_key = input.private_key ? encrypt(input.private_key) : null;
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dataToUpdate.encrypted_passphrase = input.passphrase ? encrypt(input.passphrase) : null;
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dataToUpdate.encrypted_password = null; // 清除旧密码信息
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} else { // '无'
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dataToUpdate.encrypted_password = null;
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dataToUpdate.encrypted_private_key = null;
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dataToUpdate.encrypted_passphrase = null;
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}
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} else {
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// 认证方法未更改,如果为当前方法提供了凭证,则更新凭证
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if (newAuthMethod === 'password' && input.password !== undefined) {
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dataToUpdate.encrypted_password = input.password ? encrypt(input.password) : null;
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needsCredentialUpdate = true;
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} else if (newAuthMethod === 'key') {
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if (input.private_key !== undefined) {
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dataToUpdate.encrypted_private_key = input.private_key ? encrypt(input.private_key) : null;
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dataToUpdate.encrypted_passphrase = input.passphrase ? encrypt(input.passphrase) : null; // 一起更新密码短语
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needsCredentialUpdate = true;
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} else if (input.passphrase !== undefined) { // 仅更新密码短语
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dataToUpdate.encrypted_passphrase = input.passphrase ? encrypt(input.passphrase) : null;
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needsCredentialUpdate = true;
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}
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}
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}
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// 3. 如果有更改,则更新代理记录
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const hasChanges = Object.keys(dataToUpdate).length > 0;
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if (hasChanges) {
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const updated = await ProxyRepository.updateProxy(id, dataToUpdate);
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if (!updated) {
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throw new Error('更新代理记录失败。');
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}
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}
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// 4. 获取并返回更新后的代理
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return getProxyById(id);
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};
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/**
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* 删除代理
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*/
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export const deleteProxy = async (id: number): Promise<boolean> => {
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return ProxyRepository.deleteProxy(id);
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};
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