mirror of
https://github.com/Wei-Shaw/claude-relay-service.git
synced 2026-01-22 16:43:35 +00:00
647 lines
22 KiB
JavaScript
647 lines
22 KiB
JavaScript
const axios = require('axios')
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const claudeConsoleAccountService = require('./claudeConsoleAccountService')
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const logger = require('../utils/logger')
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const config = require('../../config/config')
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class ClaudeConsoleRelayService {
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constructor() {
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this.defaultUserAgent = 'claude-cli/1.0.69 (external, cli)'
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}
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// 🚀 转发请求到Claude Console API
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async relayRequest(
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requestBody,
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apiKeyData,
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clientRequest,
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clientResponse,
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clientHeaders,
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accountId,
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options = {}
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) {
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let abortController = null
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try {
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// 获取账户信息
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const account = await claudeConsoleAccountService.getAccount(accountId)
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if (!account) {
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throw new Error('Claude Console Claude account not found')
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}
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logger.info(
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`📤 Processing Claude Console API request for key: ${apiKeyData.name || apiKeyData.id}, account: ${account.name} (${accountId})`
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)
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logger.debug(`🌐 Account API URL: ${account.apiUrl}`)
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logger.debug(`🔍 Account supportedModels: ${JSON.stringify(account.supportedModels)}`)
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logger.debug(`🔑 Account has apiKey: ${!!account.apiKey}`)
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logger.debug(`📝 Request model: ${requestBody.model}`)
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// 处理模型映射
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let mappedModel = requestBody.model
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if (
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account.supportedModels &&
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typeof account.supportedModels === 'object' &&
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!Array.isArray(account.supportedModels)
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) {
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const newModel = claudeConsoleAccountService.getMappedModel(
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account.supportedModels,
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requestBody.model
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)
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if (newModel !== requestBody.model) {
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logger.info(`🔄 Mapping model from ${requestBody.model} to ${newModel}`)
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mappedModel = newModel
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}
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}
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// 创建修改后的请求体
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const modifiedRequestBody = {
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...requestBody,
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model: mappedModel
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}
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// 模型兼容性检查已经在调度器中完成，这里不需要再检查
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// 创建代理agent
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const proxyAgent = claudeConsoleAccountService._createProxyAgent(account.proxy)
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// 创建AbortController用于取消请求
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abortController = new AbortController()
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// 设置客户端断开监听器
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const handleClientDisconnect = () => {
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logger.info('🔌 Client disconnected, aborting Claude Console Claude request')
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if (abortController && !abortController.signal.aborted) {
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abortController.abort()
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}
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}
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// 监听客户端断开事件
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if (clientRequest) {
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clientRequest.once('close', handleClientDisconnect)
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}
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if (clientResponse) {
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clientResponse.once('close', handleClientDisconnect)
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}
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// 构建完整的API URL
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const cleanUrl = account.apiUrl.replace(/\/$/, '') // 移除末尾斜杠
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const apiEndpoint = cleanUrl.endsWith('/v1/messages') ? cleanUrl : `${cleanUrl}/v1/messages`
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logger.debug(`🎯 Final API endpoint: ${apiEndpoint}`)
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logger.debug(`[DEBUG] Options passed to relayRequest: ${JSON.stringify(options)}`)
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logger.debug(`[DEBUG] Client headers received: ${JSON.stringify(clientHeaders)}`)
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// 过滤客户端请求头
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const filteredHeaders = this._filterClientHeaders(clientHeaders)
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logger.debug(`[DEBUG] Filtered client headers: ${JSON.stringify(filteredHeaders)}`)
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// 决定使用的 User-Agent：优先使用账户自定义的，否则透传客户端的，最后才使用默认值
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const userAgent =
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account.userAgent ||
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clientHeaders?.['user-agent'] ||
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clientHeaders?.['User-Agent'] ||
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this.defaultUserAgent
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// 准备请求配置
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const requestConfig = {
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method: 'POST',
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url: apiEndpoint,
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data: modifiedRequestBody,
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headers: {
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'Content-Type': 'application/json',
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'anthropic-version': '2023-06-01',
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'User-Agent': userAgent,
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...filteredHeaders
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},
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httpsAgent: proxyAgent,
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timeout: config.proxy.timeout || 60000,
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signal: abortController.signal,
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validateStatus: () => true // 接受所有状态码
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}
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// 根据 API Key 格式选择认证方式
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if (account.apiKey && account.apiKey.startsWith('sk-ant-')) {
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// Anthropic 官方 API Key 使用 x-api-key
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requestConfig.headers['x-api-key'] = account.apiKey
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logger.debug('[DEBUG] Using x-api-key authentication for sk-ant-* API key')
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} else {
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// 其他 API Key 使用 Authorization Bearer
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requestConfig.headers['Authorization'] = `Bearer ${account.apiKey}`
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logger.debug('[DEBUG] Using Authorization Bearer authentication')
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}
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logger.debug(
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`[DEBUG] Initial headers before beta: ${JSON.stringify(requestConfig.headers, null, 2)}`
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)
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// 添加beta header如果需要
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if (options.betaHeader) {
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logger.debug(`[DEBUG] Adding beta header: ${options.betaHeader}`)
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requestConfig.headers['anthropic-beta'] = options.betaHeader
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} else {
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logger.debug('[DEBUG] No beta header to add')
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}
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// 发送请求
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logger.debug(
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'📤 Sending request to Claude Console API with headers:',
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JSON.stringify(requestConfig.headers, null, 2)
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)
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const response = await axios(requestConfig)
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// 移除监听器（请求成功完成）
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if (clientRequest) {
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clientRequest.removeListener('close', handleClientDisconnect)
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}
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if (clientResponse) {
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clientResponse.removeListener('close', handleClientDisconnect)
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}
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logger.debug(`🔗 Claude Console API response: ${response.status}`)
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logger.debug(`[DEBUG] Response headers: ${JSON.stringify(response.headers)}`)
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logger.debug(`[DEBUG] Response data type: ${typeof response.data}`)
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logger.debug(
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`[DEBUG] Response data length: ${response.data ? (typeof response.data === 'string' ? response.data.length : JSON.stringify(response.data).length) : 0}`
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)
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logger.debug(
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`[DEBUG] Response data preview: ${typeof response.data === 'string' ? response.data.substring(0, 200) : JSON.stringify(response.data).substring(0, 200)}`
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)
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// 检查是否为限流错误
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if (response.status === 429) {
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logger.warn(`🚫 Rate limit detected for Claude Console account ${accountId}`)
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await claudeConsoleAccountService.markAccountRateLimited(accountId)
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} else if (response.status === 200 || response.status === 201) {
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// 如果请求成功，检查并移除限流状态
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const isRateLimited = await claudeConsoleAccountService.isAccountRateLimited(accountId)
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if (isRateLimited) {
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await claudeConsoleAccountService.removeAccountRateLimit(accountId)
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}
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}
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// 更新最后使用时间
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await this._updateLastUsedTime(accountId)
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const responseBody =
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typeof response.data === 'string' ? response.data : JSON.stringify(response.data)
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logger.debug(`[DEBUG] Final response body to return: ${responseBody}`)
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return {
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statusCode: response.status,
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headers: response.headers,
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body: responseBody,
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accountId
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}
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} catch (error) {
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// 处理特定错误
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if (error.name === 'AbortError' || error.code === 'ECONNABORTED') {
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logger.info('Request aborted due to client disconnect')
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throw new Error('Client disconnected')
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}
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logger.error('❌ Claude Console Claude relay request failed:', error.message)
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// 不再因为模型不支持而block账号
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throw error
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}
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}
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// 🌊 处理流式响应
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async relayStreamRequestWithUsageCapture(
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requestBody,
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apiKeyData,
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responseStream,
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clientHeaders,
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usageCallback,
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accountId,
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streamTransformer = null,
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options = {}
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) {
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try {
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// 获取账户信息
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const account = await claudeConsoleAccountService.getAccount(accountId)
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if (!account) {
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throw new Error('Claude Console Claude account not found')
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}
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logger.info(
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`📡 Processing streaming Claude Console API request for key: ${apiKeyData.name || apiKeyData.id}, account: ${account.name} (${accountId})`
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)
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logger.debug(`🌐 Account API URL: ${account.apiUrl}`)
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// 处理模型映射
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let mappedModel = requestBody.model
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if (
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account.supportedModels &&
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typeof account.supportedModels === 'object' &&
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!Array.isArray(account.supportedModels)
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) {
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const newModel = claudeConsoleAccountService.getMappedModel(
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account.supportedModels,
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requestBody.model
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)
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if (newModel !== requestBody.model) {
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logger.info(`🔄 [Stream] Mapping model from ${requestBody.model} to ${newModel}`)
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mappedModel = newModel
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}
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}
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// 创建修改后的请求体
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const modifiedRequestBody = {
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...requestBody,
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model: mappedModel
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}
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// 模型兼容性检查已经在调度器中完成，这里不需要再检查
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// 创建代理agent
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const proxyAgent = claudeConsoleAccountService._createProxyAgent(account.proxy)
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// 发送流式请求
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await this._makeClaudeConsoleStreamRequest(
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modifiedRequestBody,
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account,
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proxyAgent,
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clientHeaders,
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responseStream,
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accountId,
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usageCallback,
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streamTransformer,
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options
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)
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// 更新最后使用时间
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await this._updateLastUsedTime(accountId)
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} catch (error) {
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logger.error('❌ Claude Console Claude stream relay failed:', error)
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throw error
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}
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}
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// 🌊 发送流式请求到Claude Console API
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async _makeClaudeConsoleStreamRequest(
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body,
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account,
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proxyAgent,
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clientHeaders,
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responseStream,
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accountId,
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usageCallback,
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streamTransformer = null,
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requestOptions = {}
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) {
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return new Promise((resolve, reject) => {
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let aborted = false
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// 构建完整的API URL
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const cleanUrl = account.apiUrl.replace(/\/$/, '') // 移除末尾斜杠
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const apiEndpoint = cleanUrl.endsWith('/v1/messages') ? cleanUrl : `${cleanUrl}/v1/messages`
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logger.debug(`🎯 Final API endpoint for stream: ${apiEndpoint}`)
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// 过滤客户端请求头
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const filteredHeaders = this._filterClientHeaders(clientHeaders)
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logger.debug(`[DEBUG] Filtered client headers: ${JSON.stringify(filteredHeaders)}`)
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// 决定使用的 User-Agent：优先使用账户自定义的，否则透传客户端的，最后才使用默认值
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const userAgent =
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account.userAgent ||
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clientHeaders?.['user-agent'] ||
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clientHeaders?.['User-Agent'] ||
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this.defaultUserAgent
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// 准备请求配置
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const requestConfig = {
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method: 'POST',
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url: apiEndpoint,
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data: body,
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headers: {
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'Content-Type': 'application/json',
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'anthropic-version': '2023-06-01',
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'User-Agent': userAgent,
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...filteredHeaders
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},
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httpsAgent: proxyAgent,
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timeout: config.proxy.timeout || 60000,
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responseType: 'stream',
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validateStatus: () => true // 接受所有状态码
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}
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// 根据 API Key 格式选择认证方式
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if (account.apiKey && account.apiKey.startsWith('sk-ant-')) {
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// Anthropic 官方 API Key 使用 x-api-key
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requestConfig.headers['x-api-key'] = account.apiKey
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logger.debug('[DEBUG] Using x-api-key authentication for sk-ant-* API key')
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} else {
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// 其他 API Key 使用 Authorization Bearer
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requestConfig.headers['Authorization'] = `Bearer ${account.apiKey}`
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logger.debug('[DEBUG] Using Authorization Bearer authentication')
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}
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// 添加beta header如果需要
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if (requestOptions.betaHeader) {
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requestConfig.headers['anthropic-beta'] = requestOptions.betaHeader
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}
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// 发送请求
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const request = axios(requestConfig)
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request
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.then((response) => {
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logger.debug(`🌊 Claude Console Claude stream response status: ${response.status}`)
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// 错误响应处理
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if (response.status !== 200) {
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logger.error(`❌ Claude Console API returned error status: ${response.status}`)
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if (response.status === 429) {
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claudeConsoleAccountService.markAccountRateLimited(accountId)
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}
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// 设置错误响应的状态码和响应头
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if (!responseStream.headersSent) {
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const errorHeaders = {
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'Content-Type': response.headers['content-type'] || 'application/json',
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'Cache-Control': 'no-cache',
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Connection: 'keep-alive'
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}
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// 避免 Transfer-Encoding 冲突，让 Express 自动处理
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delete errorHeaders['Transfer-Encoding']
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delete errorHeaders['Content-Length']
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responseStream.writeHead(response.status, errorHeaders)
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}
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// 直接透传错误数据，不进行包装
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response.data.on('data', (chunk) => {
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if (!responseStream.destroyed) {
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responseStream.write(chunk)
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}
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})
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response.data.on('end', () => {
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if (!responseStream.destroyed) {
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responseStream.end()
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}
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resolve() // 不抛出异常，正常完成流处理
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})
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return
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}
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// 成功响应，检查并移除限流状态
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claudeConsoleAccountService.isAccountRateLimited(accountId).then((isRateLimited) => {
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if (isRateLimited) {
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claudeConsoleAccountService.removeAccountRateLimit(accountId)
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}
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})
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// 设置响应头
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if (!responseStream.headersSent) {
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responseStream.writeHead(200, {
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'Content-Type': 'text/event-stream',
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'Cache-Control': 'no-cache',
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Connection: 'keep-alive',
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'X-Accel-Buffering': 'no'
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})
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}
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let buffer = ''
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let finalUsageReported = false
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const collectedUsageData = {}
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// 处理流数据
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response.data.on('data', (chunk) => {
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try {
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if (aborted) {
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return
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}
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const chunkStr = chunk.toString()
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buffer += chunkStr
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// 处理完整的SSE行
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const lines = buffer.split('\n')
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buffer = lines.pop() || ''
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// 转发数据并解析usage
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if (lines.length > 0 && !responseStream.destroyed) {
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const linesToForward = lines.join('\n') + (lines.length > 0 ? '\n' : '')
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// 应用流转换器如果有
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if (streamTransformer) {
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const transformed = streamTransformer(linesToForward)
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if (transformed) {
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responseStream.write(transformed)
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}
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} else {
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responseStream.write(linesToForward)
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}
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// 解析SSE数据寻找usage信息
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for (const line of lines) {
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if (line.startsWith('data: ') && line.length > 6) {
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try {
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const jsonStr = line.slice(6)
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const data = JSON.parse(jsonStr)
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// 收集usage数据
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if (data.type === 'message_start' && data.message && data.message.usage) {
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collectedUsageData.input_tokens = data.message.usage.input_tokens || 0
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collectedUsageData.cache_creation_input_tokens =
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data.message.usage.cache_creation_input_tokens || 0
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collectedUsageData.cache_read_input_tokens =
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data.message.usage.cache_read_input_tokens || 0
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collectedUsageData.model = data.message.model
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}
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if (
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data.type === 'message_delta' &&
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data.usage &&
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data.usage.output_tokens !== undefined
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) {
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collectedUsageData.output_tokens = data.usage.output_tokens || 0
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if (collectedUsageData.input_tokens !== undefined && !finalUsageReported) {
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usageCallback({ ...collectedUsageData, accountId })
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finalUsageReported = true
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}
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}
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// 不再因为模型不支持而block账号
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} catch (e) {
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// 忽略解析错误
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}
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}
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}
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}
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} catch (error) {
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logger.error('❌ Error processing Claude Console stream data:', error)
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if (!responseStream.destroyed) {
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responseStream.write('event: error\n')
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responseStream.write(
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`data: ${JSON.stringify({
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error: 'Stream processing error',
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message: error.message,
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timestamp: new Date().toISOString()
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})}\n\n`
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)
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}
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}
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})
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response.data.on('end', () => {
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try {
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// 处理缓冲区中剩余的数据
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if (buffer.trim() && !responseStream.destroyed) {
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if (streamTransformer) {
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const transformed = streamTransformer(buffer)
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if (transformed) {
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responseStream.write(transformed)
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}
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} else {
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responseStream.write(buffer)
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}
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}
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// 确保流正确结束
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if (!responseStream.destroyed) {
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responseStream.end()
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}
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logger.debug('🌊 Claude Console Claude stream response completed')
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resolve()
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} catch (error) {
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logger.error('❌ Error processing stream end:', error)
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reject(error)
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}
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})
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|
||
response.data.on('error', (error) => {
|
||
logger.error('❌ Claude Console stream error:', error)
|
||
if (!responseStream.destroyed) {
|
||
responseStream.write('event: error\n')
|
||
responseStream.write(
|
||
`data: ${JSON.stringify({
|
||
error: 'Stream error',
|
||
message: error.message,
|
||
timestamp: new Date().toISOString()
|
||
})}\n\n`
|
||
)
|
||
responseStream.end()
|
||
}
|
||
reject(error)
|
||
})
|
||
})
|
||
.catch((error) => {
|
||
if (aborted) {
|
||
return
|
||
}
|
||
|
||
logger.error('❌ Claude Console Claude stream request error:', error.message)
|
||
|
||
// 检查是否是429错误
|
||
if (error.response && error.response.status === 429) {
|
||
claudeConsoleAccountService.markAccountRateLimited(accountId)
|
||
}
|
||
|
||
// 发送错误响应
|
||
if (!responseStream.headersSent) {
|
||
responseStream.writeHead(error.response?.status || 500, {
|
||
'Content-Type': 'text/event-stream',
|
||
'Cache-Control': 'no-cache',
|
||
Connection: 'keep-alive'
|
||
})
|
||
}
|
||
|
||
if (!responseStream.destroyed) {
|
||
responseStream.write('event: error\n')
|
||
responseStream.write(
|
||
`data: ${JSON.stringify({
|
||
error: error.message,
|
||
code: error.code,
|
||
timestamp: new Date().toISOString()
|
||
})}\n\n`
|
||
)
|
||
responseStream.end()
|
||
}
|
||
|
||
reject(error)
|
||
})
|
||
|
||
// 处理客户端断开连接
|
||
responseStream.on('close', () => {
|
||
logger.debug('🔌 Client disconnected, cleaning up Claude Console stream')
|
||
aborted = true
|
||
})
|
||
})
|
||
}
|
||
|
||
// 🔧 过滤客户端请求头
|
||
_filterClientHeaders(clientHeaders) {
|
||
const sensitiveHeaders = [
|
||
'content-type',
|
||
'user-agent',
|
||
'authorization',
|
||
'x-api-key',
|
||
'host',
|
||
'content-length',
|
||
'connection',
|
||
'proxy-authorization',
|
||
'content-encoding',
|
||
'transfer-encoding',
|
||
'anthropic-version'
|
||
]
|
||
|
||
const filteredHeaders = {}
|
||
|
||
Object.keys(clientHeaders || {}).forEach((key) => {
|
||
const lowerKey = key.toLowerCase()
|
||
if (!sensitiveHeaders.includes(lowerKey)) {
|
||
filteredHeaders[key] = clientHeaders[key]
|
||
}
|
||
})
|
||
|
||
return filteredHeaders
|
||
}
|
||
|
||
// 🕐 更新最后使用时间
|
||
async _updateLastUsedTime(accountId) {
|
||
try {
|
||
const client = require('../models/redis').getClientSafe()
|
||
await client.hset(
|
||
`claude_console_account:${accountId}`,
|
||
'lastUsedAt',
|
||
new Date().toISOString()
|
||
)
|
||
} catch (error) {
|
||
logger.warn(
|
||
`⚠️ Failed to update last used time for Claude Console account ${accountId}:`,
|
||
error.message
|
||
)
|
||
}
|
||
}
|
||
|
||
// 🎯 健康检查
|
||
async healthCheck() {
|
||
try {
|
||
const accounts = await claudeConsoleAccountService.getAllAccounts()
|
||
const activeAccounts = accounts.filter((acc) => acc.isActive && acc.status === 'active')
|
||
|
||
return {
|
||
healthy: activeAccounts.length > 0,
|
||
activeAccounts: activeAccounts.length,
|
||
totalAccounts: accounts.length,
|
||
timestamp: new Date().toISOString()
|
||
}
|
||
} catch (error) {
|
||
logger.error('❌ Claude Console Claude health check failed:', error)
|
||
return {
|
||
healthy: false,
|
||
error: error.message,
|
||
timestamp: new Date().toISOString()
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
module.exports = new ClaudeConsoleRelayService()
|