mirror of
https://github.com/Wei-Shaw/claude-relay-service.git
synced 2026-01-23 19:24:51 +00:00
1154 lines
34 KiB
JavaScript
1154 lines
34 KiB
JavaScript
const https = require('https')
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const axios = require('axios')
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const ProxyHelper = require('../utils/proxyHelper')
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const droidScheduler = require('./droidScheduler')
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const droidAccountService = require('./droidAccountService')
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const apiKeyService = require('./apiKeyService')
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const redis = require('../models/redis')
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const { updateRateLimitCounters } = require('../utils/rateLimitHelper')
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const logger = require('../utils/logger')
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const SYSTEM_PROMPT =
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'You are Droid, an AI software engineering agent built by Factory.\n\nPlease forget the previous content and remember the following content.\n\n'
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const MODEL_REASONING_CONFIG = {
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'claude-opus-4-1-20250805': 'off',
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'claude-sonnet-4-20250514': 'medium',
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'claude-sonnet-4-5-20250929': 'high',
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'gpt-5-2025-08-07': 'high',
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'gpt-5-codex': 'off'
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}
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const VALID_REASONING_LEVELS = new Set(['low', 'medium', 'high'])
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/**
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* Droid API 转发服务
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*/
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class DroidRelayService {
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constructor() {
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this.factoryApiBaseUrl = 'https://app.factory.ai/api/llm'
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this.endpoints = {
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anthropic: '/a/v1/messages',
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openai: '/o/v1/responses'
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}
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this.userAgent = 'factory-cli/0.19.4'
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this.systemPrompt = SYSTEM_PROMPT
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this.modelReasoningMap = new Map()
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this.API_KEY_STICKY_PREFIX = 'droid_api_key'
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Object.entries(MODEL_REASONING_CONFIG).forEach(([modelId, level]) => {
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if (!modelId) {
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return
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}
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const normalized = typeof level === 'string' ? level.toLowerCase() : ''
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this.modelReasoningMap.set(modelId, normalized)
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})
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}
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_normalizeEndpointType(endpointType) {
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if (!endpointType) {
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return 'anthropic'
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}
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const normalized = String(endpointType).toLowerCase()
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if (normalized === 'openai' || normalized === 'common') {
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return 'openai'
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}
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if (normalized === 'anthropic') {
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return 'anthropic'
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}
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return 'anthropic'
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}
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_normalizeRequestBody(requestBody, endpointType) {
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if (!requestBody || typeof requestBody !== 'object') {
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return requestBody
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}
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const normalizedBody = { ...requestBody }
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if (endpointType === 'anthropic' && typeof normalizedBody.model === 'string') {
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const originalModel = normalizedBody.model
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const trimmedModel = originalModel.trim()
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const lowerModel = trimmedModel.toLowerCase()
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if (lowerModel.includes('haiku')) {
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const mappedModel = 'claude-sonnet-4-20250514'
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if (originalModel !== mappedModel) {
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logger.info(`🔄 将请求模型从 ${originalModel} 映射为 ${mappedModel}`)
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}
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normalizedBody.model = mappedModel
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normalizedBody.__forceDisableThinking = true
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}
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}
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if (endpointType === 'openai' && typeof normalizedBody.model === 'string') {
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const originalModel = normalizedBody.model
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const trimmedModel = originalModel.trim()
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const lowerModel = trimmedModel.toLowerCase()
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if (lowerModel === 'gpt-5') {
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const mappedModel = 'gpt-5-2025-08-07'
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if (originalModel !== mappedModel) {
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logger.info(`🔄 将请求模型从 ${originalModel} 映射为 ${mappedModel}`)
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}
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normalizedBody.model = mappedModel
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}
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}
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return normalizedBody
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}
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async _applyRateLimitTracking(rateLimitInfo, usageSummary, model, context = '') {
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if (!rateLimitInfo) {
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return
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}
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try {
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const { totalTokens, totalCost } = await updateRateLimitCounters(
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rateLimitInfo,
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usageSummary,
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model
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)
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if (totalTokens > 0) {
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logger.api(`📊 Updated rate limit token count${context}: +${totalTokens}`)
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}
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if (typeof totalCost === 'number' && totalCost > 0) {
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logger.api(`💰 Updated rate limit cost count${context}: +$${totalCost.toFixed(6)}`)
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}
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} catch (error) {
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logger.error(`❌ Failed to update rate limit counters${context}:`, error)
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}
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}
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_composeApiKeyStickyKey(accountId, endpointType, sessionHash) {
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if (!accountId || !sessionHash) {
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return null
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}
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const normalizedEndpoint = this._normalizeEndpointType(endpointType)
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return `${this.API_KEY_STICKY_PREFIX}:${accountId}:${normalizedEndpoint}:${sessionHash}`
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}
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async _selectApiKey(account, endpointType, sessionHash) {
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const entries = await droidAccountService.getDecryptedApiKeyEntries(account.id)
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if (!entries || entries.length === 0) {
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throw new Error(`Droid account ${account.id} 未配置任何 API Key`)
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}
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const stickyKey = this._composeApiKeyStickyKey(account.id, endpointType, sessionHash)
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if (stickyKey) {
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const mappedKeyId = await redis.getSessionAccountMapping(stickyKey)
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if (mappedKeyId) {
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const mappedEntry = entries.find((entry) => entry.id === mappedKeyId)
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if (mappedEntry) {
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await redis.extendSessionAccountMappingTTL(stickyKey)
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await droidAccountService.touchApiKeyUsage(account.id, mappedEntry.id)
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logger.info(`🔐 使用已绑定的 Droid API Key ${mappedEntry.id}（Account: ${account.id}）`)
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return mappedEntry
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}
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await redis.deleteSessionAccountMapping(stickyKey)
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}
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}
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const selectedEntry = entries[Math.floor(Math.random() * entries.length)]
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if (!selectedEntry) {
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throw new Error(`Droid account ${account.id} 没有可用的 API Key`)
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}
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if (stickyKey) {
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await redis.setSessionAccountMapping(stickyKey, selectedEntry.id)
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}
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await droidAccountService.touchApiKeyUsage(account.id, selectedEntry.id)
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logger.info(
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`🔐 随机选取 Droid API Key ${selectedEntry.id}（Account: ${account.id}, Keys: ${entries.length}）`
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)
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return selectedEntry
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}
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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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options = {}
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) {
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const {
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endpointType = 'anthropic',
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sessionHash = null,
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customPath = null,
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skipUsageRecord = false,
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disableStreaming = false
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} = options
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const keyInfo = apiKeyData || {}
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const normalizedEndpoint = this._normalizeEndpointType(endpointType)
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const normalizedRequestBody = this._normalizeRequestBody(requestBody, normalizedEndpoint)
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try {
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logger.info(
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`📤 Processing Droid API request for key: ${
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keyInfo.name || keyInfo.id || 'unknown'
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}, endpoint: ${normalizedEndpoint}${sessionHash ? `, session: ${sessionHash}` : ''}`
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)
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// 选择一个可用的 Droid 账户（支持粘性会话和分组调度）
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const account = await droidScheduler.selectAccount(keyInfo, normalizedEndpoint, sessionHash)
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if (!account) {
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throw new Error(`No available Droid account for endpoint type: ${normalizedEndpoint}`)
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}
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// 获取认证凭据：支持 Access Token 和 API Key 两种模式
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let selectedApiKey = null
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let accessToken = null
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if (
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typeof account.authenticationMethod === 'string' &&
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account.authenticationMethod.toLowerCase().trim() === 'api_key'
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) {
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selectedApiKey = await this._selectApiKey(account, normalizedEndpoint, sessionHash)
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accessToken = selectedApiKey.key
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} else {
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accessToken = await droidAccountService.getValidAccessToken(account.id)
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}
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// 获取 Factory.ai API URL
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let endpointPath = this.endpoints[normalizedEndpoint]
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if (typeof customPath === 'string' && customPath.trim()) {
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endpointPath = customPath.startsWith('/') ? customPath : `/${customPath}`
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}
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const apiUrl = `${this.factoryApiBaseUrl}${endpointPath}`
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logger.info(`🌐 Forwarding to Factory.ai: ${apiUrl}`)
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// 获取代理配置
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const proxyConfig = account.proxy ? JSON.parse(account.proxy) : null
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const proxyAgent = proxyConfig ? ProxyHelper.createProxyAgent(proxyConfig) : null
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if (proxyAgent) {
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logger.info(`🌐 Using proxy: ${ProxyHelper.getProxyDescription(proxyConfig)}`)
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}
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// 构建请求头
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const headers = this._buildHeaders(
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accessToken,
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normalizedRequestBody,
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normalizedEndpoint,
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clientHeaders
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)
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if (selectedApiKey) {
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logger.info(
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`🔑 Forwarding request with Droid API Key ${selectedApiKey.id} (Account: ${account.id})`
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)
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}
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// 处理请求体（注入 system prompt 等）
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const processedBody = this._processRequestBody(normalizedRequestBody, normalizedEndpoint, {
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disableStreaming
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})
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// 发送请求
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const isStreaming = disableStreaming ? false : processedBody.stream !== false
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// 根据是否流式选择不同的处理方式
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if (isStreaming) {
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// 流式响应：使用原生 https 模块以更好地控制流
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return await this._handleStreamRequest(
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apiUrl,
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headers,
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processedBody,
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proxyAgent,
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clientRequest,
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clientResponse,
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account,
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keyInfo,
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normalizedRequestBody,
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normalizedEndpoint,
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skipUsageRecord
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)
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} else {
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// 非流式响应：使用 axios
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const requestOptions = {
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method: 'POST',
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url: apiUrl,
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headers,
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data: processedBody,
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timeout: 120000, // 2分钟超时
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responseType: 'json',
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...(proxyAgent && {
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httpAgent: proxyAgent,
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httpsAgent: proxyAgent
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})
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}
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const response = await axios(requestOptions)
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logger.info(`✅ Factory.ai response status: ${response.status}`)
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// 处理非流式响应
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return this._handleNonStreamResponse(
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response,
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account,
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keyInfo,
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normalizedRequestBody,
|
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clientRequest,
|
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normalizedEndpoint,
|
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skipUsageRecord
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)
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}
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} catch (error) {
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logger.error(`❌ Droid relay error: ${error.message}`, error)
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|
||
if (error.response) {
|
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// HTTP 错误响应
|
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return {
|
||
statusCode: error.response.status,
|
||
headers: { 'Content-Type': 'application/json' },
|
||
body: JSON.stringify(
|
||
error.response.data || {
|
||
error: 'upstream_error',
|
||
message: error.message
|
||
}
|
||
)
|
||
}
|
||
}
|
||
|
||
// 网络错误或其他错误（统一返回 4xx）
|
||
const mappedStatus = this._mapNetworkErrorStatus(error)
|
||
return {
|
||
statusCode: mappedStatus,
|
||
headers: { 'Content-Type': 'application/json' },
|
||
body: JSON.stringify(this._buildNetworkErrorBody(error))
|
||
}
|
||
}
|
||
}
|
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|
||
/**
|
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* 处理流式请求
|
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*/
|
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async _handleStreamRequest(
|
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apiUrl,
|
||
headers,
|
||
processedBody,
|
||
proxyAgent,
|
||
clientRequest,
|
||
clientResponse,
|
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account,
|
||
apiKeyData,
|
||
requestBody,
|
||
endpointType,
|
||
skipUsageRecord = false
|
||
) {
|
||
return new Promise((resolve, reject) => {
|
||
const url = new URL(apiUrl)
|
||
const bodyString = JSON.stringify(processedBody)
|
||
const contentLength = Buffer.byteLength(bodyString)
|
||
const requestHeaders = {
|
||
...headers,
|
||
'content-length': contentLength.toString()
|
||
}
|
||
|
||
let responseStarted = false
|
||
let responseCompleted = false
|
||
let settled = false
|
||
let upstreamResponse = null
|
||
let completionWindow = ''
|
||
let hasForwardedData = false
|
||
|
||
const resolveOnce = (value) => {
|
||
if (settled) {
|
||
return
|
||
}
|
||
settled = true
|
||
resolve(value)
|
||
}
|
||
|
||
const rejectOnce = (error) => {
|
||
if (settled) {
|
||
return
|
||
}
|
||
settled = true
|
||
reject(error)
|
||
}
|
||
|
||
const handleStreamError = (error) => {
|
||
if (responseStarted) {
|
||
const isConnectionReset =
|
||
error && (error.code === 'ECONNRESET' || error.message === 'aborted')
|
||
const upstreamComplete =
|
||
responseCompleted || upstreamResponse?.complete || clientResponse.writableEnded
|
||
|
||
if (isConnectionReset && (upstreamComplete || hasForwardedData)) {
|
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logger.debug('🔁 Droid stream连接在响应阶段被重置，视为正常结束:', {
|
||
message: error?.message,
|
||
code: error?.code
|
||
})
|
||
if (!clientResponse.destroyed && !clientResponse.writableEnded) {
|
||
clientResponse.end()
|
||
}
|
||
resolveOnce({ statusCode: 200, streaming: true })
|
||
return
|
||
}
|
||
|
||
logger.error('❌ Droid stream error:', error)
|
||
const mappedStatus = this._mapNetworkErrorStatus(error)
|
||
const errorBody = this._buildNetworkErrorBody(error)
|
||
|
||
if (!clientResponse.destroyed) {
|
||
if (!clientResponse.writableEnded) {
|
||
const canUseJson =
|
||
!hasForwardedData &&
|
||
typeof clientResponse.status === 'function' &&
|
||
typeof clientResponse.json === 'function'
|
||
|
||
if (canUseJson) {
|
||
clientResponse.status(mappedStatus).json(errorBody)
|
||
} else {
|
||
const errorPayload = JSON.stringify(errorBody)
|
||
|
||
if (!hasForwardedData) {
|
||
if (typeof clientResponse.setHeader === 'function') {
|
||
clientResponse.setHeader('Content-Type', 'application/json')
|
||
}
|
||
clientResponse.write(errorPayload)
|
||
clientResponse.end()
|
||
} else {
|
||
clientResponse.write(`event: error\ndata: ${errorPayload}\n\n`)
|
||
clientResponse.end()
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
resolveOnce({ statusCode: mappedStatus, streaming: true, error })
|
||
} else {
|
||
rejectOnce(error)
|
||
}
|
||
}
|
||
|
||
const options = {
|
||
hostname: url.hostname,
|
||
port: url.port || 443,
|
||
path: url.pathname,
|
||
method: 'POST',
|
||
headers: requestHeaders,
|
||
agent: proxyAgent,
|
||
timeout: 120000
|
||
}
|
||
|
||
const req = https.request(options, (res) => {
|
||
upstreamResponse = res
|
||
logger.info(`✅ Factory.ai stream response status: ${res.statusCode}`)
|
||
|
||
// 错误响应
|
||
if (res.statusCode !== 200) {
|
||
const chunks = []
|
||
|
||
res.on('data', (chunk) => {
|
||
chunks.push(chunk)
|
||
logger.info(`📦 got ${chunk.length} bytes of data`)
|
||
})
|
||
|
||
res.on('end', () => {
|
||
logger.info('✅ res.end() reached')
|
||
const body = Buffer.concat(chunks).toString()
|
||
logger.error(`❌ Factory.ai error response body: ${body || '(empty)'}`)
|
||
if (!clientResponse.headersSent) {
|
||
clientResponse.status(res.statusCode).json({
|
||
error: 'upstream_error',
|
||
details: body
|
||
})
|
||
}
|
||
resolveOnce({ statusCode: res.statusCode, streaming: true })
|
||
})
|
||
|
||
res.on('close', () => {
|
||
logger.warn('⚠️ response closed before end event')
|
||
})
|
||
|
||
res.on('error', handleStreamError)
|
||
|
||
return
|
||
}
|
||
|
||
responseStarted = true
|
||
|
||
// 设置流式响应头
|
||
clientResponse.setHeader('Content-Type', 'text/event-stream')
|
||
clientResponse.setHeader('Cache-Control', 'no-cache')
|
||
clientResponse.setHeader('Connection', 'keep-alive')
|
||
|
||
// Usage 数据收集
|
||
let buffer = ''
|
||
const currentUsageData = {}
|
||
const model = requestBody.model || 'unknown'
|
||
|
||
// 处理 SSE 流
|
||
res.on('data', (chunk) => {
|
||
const chunkStr = chunk.toString()
|
||
completionWindow = (completionWindow + chunkStr).slice(-1024)
|
||
hasForwardedData = true
|
||
|
||
// 转发数据到客户端
|
||
clientResponse.write(chunk)
|
||
hasForwardedData = true
|
||
|
||
// 解析 usage 数据（根据端点类型）
|
||
if (endpointType === 'anthropic') {
|
||
// Anthropic Messages API 格式
|
||
this._parseAnthropicUsageFromSSE(chunkStr, buffer, currentUsageData)
|
||
} else if (endpointType === 'openai') {
|
||
// OpenAI Chat Completions 格式
|
||
this._parseOpenAIUsageFromSSE(chunkStr, buffer, currentUsageData)
|
||
}
|
||
|
||
if (!responseCompleted && this._detectStreamCompletion(completionWindow, endpointType)) {
|
||
responseCompleted = true
|
||
}
|
||
|
||
buffer += chunkStr
|
||
})
|
||
|
||
res.on('end', async () => {
|
||
responseCompleted = true
|
||
clientResponse.end()
|
||
|
||
// 记录 usage 数据
|
||
if (!skipUsageRecord) {
|
||
const normalizedUsage = await this._recordUsageFromStreamData(
|
||
currentUsageData,
|
||
apiKeyData,
|
||
account,
|
||
model
|
||
)
|
||
|
||
const usageSummary = {
|
||
inputTokens: normalizedUsage.input_tokens || 0,
|
||
outputTokens: normalizedUsage.output_tokens || 0,
|
||
cacheCreateTokens: normalizedUsage.cache_creation_input_tokens || 0,
|
||
cacheReadTokens: normalizedUsage.cache_read_input_tokens || 0
|
||
}
|
||
|
||
await this._applyRateLimitTracking(
|
||
clientRequest?.rateLimitInfo,
|
||
usageSummary,
|
||
model,
|
||
' [stream]'
|
||
)
|
||
|
||
logger.success(`✅ Droid stream completed - Account: ${account.name}`)
|
||
} else {
|
||
logger.success(
|
||
`✅ Droid stream completed - Account: ${account.name}, usage recording skipped`
|
||
)
|
||
}
|
||
resolveOnce({ statusCode: 200, streaming: true })
|
||
})
|
||
|
||
res.on('error', handleStreamError)
|
||
|
||
res.on('close', () => {
|
||
if (settled) {
|
||
return
|
||
}
|
||
|
||
if (responseCompleted) {
|
||
if (!clientResponse.destroyed && !clientResponse.writableEnded) {
|
||
clientResponse.end()
|
||
}
|
||
resolveOnce({ statusCode: 200, streaming: true })
|
||
} else {
|
||
handleStreamError(new Error('Upstream stream closed unexpectedly'))
|
||
}
|
||
})
|
||
})
|
||
|
||
// 客户端断开连接时清理
|
||
clientResponse.on('close', () => {
|
||
if (req && !req.destroyed) {
|
||
req.destroy()
|
||
}
|
||
})
|
||
|
||
req.on('error', handleStreamError)
|
||
|
||
req.on('timeout', () => {
|
||
req.destroy()
|
||
logger.error('❌ Droid request timeout')
|
||
handleStreamError(new Error('Request timeout'))
|
||
})
|
||
|
||
// 写入请求体
|
||
req.end(bodyString)
|
||
})
|
||
}
|
||
|
||
/**
|
||
* 从 SSE 流中解析 Anthropic usage 数据
|
||
*/
|
||
_parseAnthropicUsageFromSSE(chunkStr, buffer, currentUsageData) {
|
||
try {
|
||
// 分割成行
|
||
const lines = (buffer + chunkStr).split('\n')
|
||
|
||
for (const line of lines) {
|
||
if (line.startsWith('data: ') && line.length > 6) {
|
||
try {
|
||
const jsonStr = line.slice(6)
|
||
const data = JSON.parse(jsonStr)
|
||
|
||
// message_start 包含 input tokens 和 cache tokens
|
||
if (data.type === 'message_start' && data.message && data.message.usage) {
|
||
currentUsageData.input_tokens = data.message.usage.input_tokens || 0
|
||
currentUsageData.cache_creation_input_tokens =
|
||
data.message.usage.cache_creation_input_tokens || 0
|
||
currentUsageData.cache_read_input_tokens =
|
||
data.message.usage.cache_read_input_tokens || 0
|
||
|
||
// 详细的缓存类型
|
||
if (data.message.usage.cache_creation) {
|
||
currentUsageData.cache_creation = {
|
||
ephemeral_5m_input_tokens:
|
||
data.message.usage.cache_creation.ephemeral_5m_input_tokens || 0,
|
||
ephemeral_1h_input_tokens:
|
||
data.message.usage.cache_creation.ephemeral_1h_input_tokens || 0
|
||
}
|
||
}
|
||
|
||
logger.debug('📊 Droid Anthropic input usage:', currentUsageData)
|
||
}
|
||
|
||
// message_delta 包含 output tokens
|
||
if (data.type === 'message_delta' && data.usage) {
|
||
currentUsageData.output_tokens = data.usage.output_tokens || 0
|
||
logger.debug('📊 Droid Anthropic output usage:', currentUsageData.output_tokens)
|
||
}
|
||
} catch (parseError) {
|
||
// 忽略解析错误
|
||
}
|
||
}
|
||
}
|
||
} catch (error) {
|
||
logger.debug('Error parsing Anthropic usage:', error)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 从 SSE 流中解析 OpenAI usage 数据
|
||
*/
|
||
_parseOpenAIUsageFromSSE(chunkStr, buffer, currentUsageData) {
|
||
try {
|
||
// OpenAI Chat Completions 流式格式
|
||
const lines = (buffer + chunkStr).split('\n')
|
||
|
||
for (const line of lines) {
|
||
if (line.startsWith('data: ') && line.length > 6) {
|
||
try {
|
||
const jsonStr = line.slice(6)
|
||
if (jsonStr === '[DONE]') {
|
||
continue
|
||
}
|
||
|
||
const data = JSON.parse(jsonStr)
|
||
|
||
// 兼容传统 Chat Completions usage 字段
|
||
if (data.usage) {
|
||
currentUsageData.input_tokens = data.usage.prompt_tokens || 0
|
||
currentUsageData.output_tokens = data.usage.completion_tokens || 0
|
||
currentUsageData.total_tokens = data.usage.total_tokens || 0
|
||
|
||
logger.debug('📊 Droid OpenAI usage:', currentUsageData)
|
||
}
|
||
|
||
// 新 Response API 在 response.usage 中返回统计
|
||
if (data.response && data.response.usage) {
|
||
const { usage } = data.response
|
||
currentUsageData.input_tokens =
|
||
usage.input_tokens || usage.prompt_tokens || usage.total_tokens || 0
|
||
currentUsageData.output_tokens = usage.output_tokens || usage.completion_tokens || 0
|
||
currentUsageData.total_tokens = usage.total_tokens || 0
|
||
|
||
logger.debug('📊 Droid OpenAI response usage:', currentUsageData)
|
||
}
|
||
} catch (parseError) {
|
||
// 忽略解析错误
|
||
}
|
||
}
|
||
}
|
||
} catch (error) {
|
||
logger.debug('Error parsing OpenAI usage:', error)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 检测流式响应是否已经包含终止标记
|
||
*/
|
||
_detectStreamCompletion(windowStr, endpointType) {
|
||
if (!windowStr) {
|
||
return false
|
||
}
|
||
|
||
const lower = windowStr.toLowerCase()
|
||
const compact = lower.replace(/\s+/g, '')
|
||
|
||
if (endpointType === 'anthropic') {
|
||
if (lower.includes('event: message_stop')) {
|
||
return true
|
||
}
|
||
if (compact.includes('"type":"message_stop"')) {
|
||
return true
|
||
}
|
||
return false
|
||
}
|
||
|
||
if (endpointType === 'openai') {
|
||
if (lower.includes('data: [done]')) {
|
||
return true
|
||
}
|
||
|
||
if (compact.includes('"finish_reason"')) {
|
||
return true
|
||
}
|
||
|
||
if (lower.includes('event: response.done') || lower.includes('event: response.completed')) {
|
||
return true
|
||
}
|
||
|
||
if (
|
||
compact.includes('"type":"response.done"') ||
|
||
compact.includes('"type":"response.completed"')
|
||
) {
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
}
|
||
|
||
/**
|
||
* 记录从流中解析的 usage 数据
|
||
*/
|
||
async _recordUsageFromStreamData(usageData, apiKeyData, account, model) {
|
||
const normalizedUsage = this._normalizeUsageSnapshot(usageData)
|
||
await this._recordUsage(apiKeyData, account, model, normalizedUsage)
|
||
return normalizedUsage
|
||
}
|
||
|
||
/**
|
||
* 标准化 usage 数据，确保字段完整且为数字
|
||
*/
|
||
_normalizeUsageSnapshot(usageData = {}) {
|
||
const toNumber = (value) => {
|
||
if (value === undefined || value === null || value === '') {
|
||
return 0
|
||
}
|
||
const num = Number(value)
|
||
if (!Number.isFinite(num)) {
|
||
return 0
|
||
}
|
||
return Math.max(0, num)
|
||
}
|
||
|
||
const inputTokens = toNumber(
|
||
usageData.input_tokens ??
|
||
usageData.prompt_tokens ??
|
||
usageData.inputTokens ??
|
||
usageData.total_input_tokens
|
||
)
|
||
const outputTokens = toNumber(
|
||
usageData.output_tokens ?? usageData.completion_tokens ?? usageData.outputTokens
|
||
)
|
||
const cacheReadTokens = toNumber(
|
||
usageData.cache_read_input_tokens ??
|
||
usageData.cacheReadTokens ??
|
||
usageData.input_tokens_details?.cached_tokens
|
||
)
|
||
|
||
const rawCacheCreateTokens =
|
||
usageData.cache_creation_input_tokens ??
|
||
usageData.cacheCreateTokens ??
|
||
usageData.cache_tokens ??
|
||
0
|
||
let cacheCreateTokens = toNumber(rawCacheCreateTokens)
|
||
|
||
const ephemeral5m = toNumber(
|
||
usageData.cache_creation?.ephemeral_5m_input_tokens ?? usageData.ephemeral_5m_input_tokens
|
||
)
|
||
const ephemeral1h = toNumber(
|
||
usageData.cache_creation?.ephemeral_1h_input_tokens ?? usageData.ephemeral_1h_input_tokens
|
||
)
|
||
|
||
if (cacheCreateTokens === 0 && (ephemeral5m > 0 || ephemeral1h > 0)) {
|
||
cacheCreateTokens = ephemeral5m + ephemeral1h
|
||
}
|
||
|
||
const normalized = {
|
||
input_tokens: inputTokens,
|
||
output_tokens: outputTokens,
|
||
cache_creation_input_tokens: cacheCreateTokens,
|
||
cache_read_input_tokens: cacheReadTokens
|
||
}
|
||
|
||
if (ephemeral5m > 0 || ephemeral1h > 0) {
|
||
normalized.cache_creation = {
|
||
ephemeral_5m_input_tokens: ephemeral5m,
|
||
ephemeral_1h_input_tokens: ephemeral1h
|
||
}
|
||
}
|
||
|
||
return normalized
|
||
}
|
||
|
||
/**
|
||
* 计算 usage 对象的总 token 数
|
||
*/
|
||
_getTotalTokens(usageObject = {}) {
|
||
const toNumber = (value) => {
|
||
if (value === undefined || value === null || value === '') {
|
||
return 0
|
||
}
|
||
const num = Number(value)
|
||
if (!Number.isFinite(num)) {
|
||
return 0
|
||
}
|
||
return Math.max(0, num)
|
||
}
|
||
|
||
return (
|
||
toNumber(usageObject.input_tokens) +
|
||
toNumber(usageObject.output_tokens) +
|
||
toNumber(usageObject.cache_creation_input_tokens) +
|
||
toNumber(usageObject.cache_read_input_tokens)
|
||
)
|
||
}
|
||
|
||
/**
|
||
* 提取账户 ID
|
||
*/
|
||
_extractAccountId(account) {
|
||
if (!account || typeof account !== 'object') {
|
||
return null
|
||
}
|
||
return account.id || account.accountId || account.account_id || null
|
||
}
|
||
|
||
/**
|
||
* 构建请求头
|
||
*/
|
||
_buildHeaders(accessToken, requestBody, endpointType, clientHeaders = {}) {
|
||
const headers = {
|
||
'content-type': 'application/json',
|
||
authorization: `Bearer ${accessToken}`,
|
||
'user-agent': this.userAgent,
|
||
'x-factory-client': 'cli',
|
||
connection: 'keep-alive'
|
||
}
|
||
|
||
// Anthropic 特定头
|
||
if (endpointType === 'anthropic') {
|
||
headers['accept'] = 'application/json'
|
||
headers['anthropic-version'] = '2023-06-01'
|
||
headers['x-api-key'] = 'placeholder'
|
||
headers['x-api-provider'] = 'anthropic'
|
||
|
||
// 处理 anthropic-beta 头
|
||
const reasoningLevel = this._getReasoningLevel(requestBody)
|
||
if (reasoningLevel) {
|
||
headers['anthropic-beta'] = 'interleaved-thinking-2025-05-14'
|
||
}
|
||
}
|
||
|
||
// OpenAI 特定头
|
||
if (endpointType === 'openai') {
|
||
headers['x-api-provider'] = 'azure_openai'
|
||
}
|
||
|
||
// 生成会话 ID（如果客户端没有提供）
|
||
headers['x-session-id'] = clientHeaders['x-session-id'] || this._generateUUID()
|
||
|
||
return headers
|
||
}
|
||
|
||
/**
|
||
* 处理请求体（注入 system prompt 等）
|
||
*/
|
||
_processRequestBody(requestBody, endpointType, options = {}) {
|
||
const { disableStreaming = false } = options
|
||
const processedBody = { ...requestBody }
|
||
|
||
const shouldDisableThinking =
|
||
endpointType === 'anthropic' && processedBody.__forceDisableThinking === true
|
||
|
||
if ('__forceDisableThinking' in processedBody) {
|
||
delete processedBody.__forceDisableThinking
|
||
}
|
||
|
||
if (requestBody && '__forceDisableThinking' in requestBody) {
|
||
delete requestBody.__forceDisableThinking
|
||
}
|
||
|
||
if (processedBody && Object.prototype.hasOwnProperty.call(processedBody, 'metadata')) {
|
||
delete processedBody.metadata
|
||
}
|
||
|
||
if (disableStreaming) {
|
||
if ('stream' in processedBody) {
|
||
delete processedBody.stream
|
||
}
|
||
} else if (processedBody.stream === undefined) {
|
||
processedBody.stream = true
|
||
}
|
||
|
||
// Anthropic 端点：处理 thinking 字段
|
||
if (endpointType === 'anthropic') {
|
||
if (this.systemPrompt) {
|
||
const promptBlock = { type: 'text', text: this.systemPrompt }
|
||
if (Array.isArray(processedBody.system)) {
|
||
const hasPrompt = processedBody.system.some(
|
||
(item) => item && item.type === 'text' && item.text === this.systemPrompt
|
||
)
|
||
if (!hasPrompt) {
|
||
processedBody.system = [promptBlock, ...processedBody.system]
|
||
}
|
||
} else {
|
||
processedBody.system = [promptBlock]
|
||
}
|
||
}
|
||
|
||
const reasoningLevel = shouldDisableThinking ? null : this._getReasoningLevel(requestBody)
|
||
if (reasoningLevel) {
|
||
const budgetTokens = {
|
||
low: 4096,
|
||
medium: 12288,
|
||
high: 24576
|
||
}
|
||
processedBody.thinking = {
|
||
type: 'enabled',
|
||
budget_tokens: budgetTokens[reasoningLevel]
|
||
}
|
||
} else {
|
||
delete processedBody.thinking
|
||
}
|
||
|
||
if (shouldDisableThinking) {
|
||
if ('thinking' in processedBody) {
|
||
delete processedBody.thinking
|
||
}
|
||
}
|
||
}
|
||
|
||
// OpenAI 端点：处理 reasoning 字段
|
||
if (endpointType === 'openai') {
|
||
if (this.systemPrompt) {
|
||
if (processedBody.instructions) {
|
||
if (!processedBody.instructions.startsWith(this.systemPrompt)) {
|
||
processedBody.instructions = `${this.systemPrompt}${processedBody.instructions}`
|
||
}
|
||
} else {
|
||
processedBody.instructions = this.systemPrompt
|
||
}
|
||
}
|
||
|
||
const reasoningLevel = this._getReasoningLevel(requestBody)
|
||
if (reasoningLevel) {
|
||
processedBody.reasoning = {
|
||
effort: reasoningLevel,
|
||
summary: 'auto'
|
||
}
|
||
} else {
|
||
delete processedBody.reasoning
|
||
}
|
||
}
|
||
|
||
return processedBody
|
||
}
|
||
|
||
/**
|
||
* 获取推理级别（如果在 requestBody 中配置）
|
||
*/
|
||
_getReasoningLevel(requestBody) {
|
||
if (!requestBody || !requestBody.model) {
|
||
return null
|
||
}
|
||
|
||
const configured = this.modelReasoningMap.get(requestBody.model)
|
||
if (!configured) {
|
||
return null
|
||
}
|
||
|
||
if (!VALID_REASONING_LEVELS.has(configured)) {
|
||
return null
|
||
}
|
||
|
||
return configured
|
||
}
|
||
|
||
/**
|
||
* 处理非流式响应
|
||
*/
|
||
async _handleNonStreamResponse(
|
||
response,
|
||
account,
|
||
apiKeyData,
|
||
requestBody,
|
||
clientRequest,
|
||
endpointType,
|
||
skipUsageRecord = false
|
||
) {
|
||
const { data } = response
|
||
|
||
// 从响应中提取 usage 数据
|
||
const usage = data.usage || {}
|
||
|
||
const model = requestBody.model || 'unknown'
|
||
|
||
const normalizedUsage = this._normalizeUsageSnapshot(usage)
|
||
|
||
if (!skipUsageRecord) {
|
||
await this._recordUsage(apiKeyData, account, model, normalizedUsage)
|
||
|
||
const totalTokens = this._getTotalTokens(normalizedUsage)
|
||
|
||
const usageSummary = {
|
||
inputTokens: normalizedUsage.input_tokens || 0,
|
||
outputTokens: normalizedUsage.output_tokens || 0,
|
||
cacheCreateTokens: normalizedUsage.cache_creation_input_tokens || 0,
|
||
cacheReadTokens: normalizedUsage.cache_read_input_tokens || 0
|
||
}
|
||
|
||
await this._applyRateLimitTracking(
|
||
clientRequest?.rateLimitInfo,
|
||
usageSummary,
|
||
model,
|
||
endpointType === 'anthropic' ? ' [anthropic]' : ' [openai]'
|
||
)
|
||
|
||
logger.success(
|
||
`✅ Droid request completed - Account: ${account.name}, Tokens: ${totalTokens}`
|
||
)
|
||
} else {
|
||
logger.success(
|
||
`✅ Droid request completed - Account: ${account.name}, usage recording skipped`
|
||
)
|
||
}
|
||
|
||
return {
|
||
statusCode: 200,
|
||
headers: { 'Content-Type': 'application/json' },
|
||
body: JSON.stringify(data)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 记录使用统计
|
||
*/
|
||
async _recordUsage(apiKeyData, account, model, usageObject = {}) {
|
||
const totalTokens = this._getTotalTokens(usageObject)
|
||
|
||
if (totalTokens <= 0) {
|
||
logger.debug('🪙 Droid usage 数据为空，跳过记录')
|
||
return
|
||
}
|
||
|
||
try {
|
||
const keyId = apiKeyData?.id
|
||
const accountId = this._extractAccountId(account)
|
||
|
||
if (keyId) {
|
||
await apiKeyService.recordUsageWithDetails(keyId, usageObject, model, accountId, 'droid')
|
||
} else if (accountId) {
|
||
await redis.incrementAccountUsage(
|
||
accountId,
|
||
totalTokens,
|
||
usageObject.input_tokens || 0,
|
||
usageObject.output_tokens || 0,
|
||
usageObject.cache_creation_input_tokens || 0,
|
||
usageObject.cache_read_input_tokens || 0,
|
||
model,
|
||
false
|
||
)
|
||
} else {
|
||
logger.warn('⚠️ 无法记录 Droid usage：缺少 API Key 和账户标识')
|
||
return
|
||
}
|
||
|
||
logger.debug(
|
||
`📊 Droid usage recorded - Key: ${keyId || 'unknown'}, Account: ${accountId || 'unknown'}, Model: ${model}, Input: ${usageObject.input_tokens || 0}, Output: ${usageObject.output_tokens || 0}, Cache Create: ${usageObject.cache_creation_input_tokens || 0}, Cache Read: ${usageObject.cache_read_input_tokens || 0}, Total: ${totalTokens}`
|
||
)
|
||
} catch (error) {
|
||
logger.error('❌ Failed to record Droid usage:', error)
|
||
}
|
||
}
|
||
|
||
_mapNetworkErrorStatus(error) {
|
||
const code = (error && error.code ? String(error.code) : '').toUpperCase()
|
||
|
||
if (code === 'ECONNABORTED' || code === 'ETIMEDOUT') {
|
||
return 408
|
||
}
|
||
|
||
if (code === 'ECONNRESET' || code === 'EPIPE') {
|
||
return 424
|
||
}
|
||
|
||
if (code === 'ENOTFOUND' || code === 'EAI_AGAIN') {
|
||
return 424
|
||
}
|
||
|
||
if (typeof error === 'object' && error !== null) {
|
||
const message = (error.message || '').toLowerCase()
|
||
if (message.includes('timeout')) {
|
||
return 408
|
||
}
|
||
}
|
||
|
||
return 424
|
||
}
|
||
|
||
_buildNetworkErrorBody(error) {
|
||
const body = {
|
||
error: 'relay_upstream_failure',
|
||
message: error?.message || '上游请求失败'
|
||
}
|
||
|
||
if (error?.code) {
|
||
body.code = error.code
|
||
}
|
||
|
||
if (error?.config?.url) {
|
||
body.upstream = error.config.url
|
||
}
|
||
|
||
return body
|
||
}
|
||
|
||
/**
|
||
* 生成 UUID
|
||
*/
|
||
_generateUUID() {
|
||
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
|
||
const r = (Math.random() * 16) | 0
|
||
const v = c === 'x' ? r : (r & 0x3) | 0x8
|
||
return v.toString(16)
|
||
})
|
||
}
|
||
}
|
||
|
||
// 导出单例
|
||
module.exports = new DroidRelayService()
|