78 lines
2.4 KiB
TypeScript
78 lines
2.4 KiB
TypeScript
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import axios, { type InternalAxiosRequestConfig } from 'axios'
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import { parseApiJsonResponse } from '@chongchong/shared'
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import { refreshAuthenticatedSession } from './http'
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interface CachedOverseasToken {
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accessToken: string
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refreshAfter: number
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}
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type RetryableOverseasRequestConfig = InternalAxiosRequestConfig & { _overseasAuthRetry?: boolean }
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const TOKEN_REFRESH_SAFETY_WINDOW_MS = 30_000
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let cachedToken: CachedOverseasToken | null = null
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export const overseasHttp = axios.create({
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baseURL: import.meta.env.VITE_OVERSEAS_API_BASE_URL || '/overseas-api',
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timeout: 15_000,
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transformResponse: [(data: unknown) => parseApiJsonResponse(data)],
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})
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function currentOverseasAccessToken() {
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return cachedToken && cachedToken.refreshAfter > Date.now() ? cachedToken.accessToken : ''
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}
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async function requireOverseasAccessToken() {
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const current = currentOverseasAccessToken()
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if (current) return current
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await refreshAuthenticatedSession()
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const refreshed = currentOverseasAccessToken()
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if (!refreshed) throw new Error('当前环境未签发海外访问令牌')
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return refreshed
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}
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export function replaceOverseasAccessToken(accessToken: string | null, expiresIn: number) {
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if (!accessToken && expiresIn === 0) {
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cachedToken = null
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return
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}
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if (!accessToken || !Number.isFinite(expiresIn) || expiresIn <= 0) {
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throw new Error('海外访问令牌响应无效')
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}
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cachedToken = {
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accessToken,
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refreshAfter: Date.now() + Math.max(0, expiresIn * 1000 - TOKEN_REFRESH_SAFETY_WINDOW_MS),
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}
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}
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export function clearOverseasAccessToken() {
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cachedToken = null
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}
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overseasHttp.interceptors.request.use(async (config) => {
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const accessToken = await requireOverseasAccessToken()
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config.headers.Authorization = `Bearer ${accessToken}`
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return config
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})
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overseasHttp.interceptors.response.use(
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(response) => response.data,
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async (error) => {
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const config = error.config as RetryableOverseasRequestConfig | undefined
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if (error.response?.status !== 401 || !config || config._overseasAuthRetry) {
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return Promise.reject(error)
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}
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config._overseasAuthRetry = true
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clearOverseasAccessToken()
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try {
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await refreshAuthenticatedSession()
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const accessToken = await requireOverseasAccessToken()
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config.headers.Authorization = `Bearer ${accessToken}`
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return overseasHttp.request(config)
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} catch {
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return Promise.reject(error)
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}
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},
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)
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