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58 lines
1.8 KiB
58 lines
1.8 KiB
import { R } from "utils/helper.js"
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import Router from "utils/router.js"
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class AuthController {
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constructor() {}
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/**
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* 通用请求函数：依次请求网址数组，返回第一个成功的响应及其类型
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* @param {string[]} urls
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* @returns {Promise<{type: string, data: any}>}
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*/
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async fetchFirstSuccess(urls) {
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for (const url of urls) {
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try {
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const res = await fetch(url, { method: "get", mode: "cors", redirect: "follow" })
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if (!res.ok) continue
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const contentType = res.headers.get("content-type") || ""
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let data, type
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if (contentType.includes("application/json")) {
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data = await res.json()
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type = "json"
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} else if (contentType.includes("text/")) {
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data = await res.text()
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type = "text"
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} else {
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data = await res.blob()
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type = "blob"
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}
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return { type, data }
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} catch (e) {
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// ignore and try next url
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}
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}
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throw new Error("All requests failed")
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}
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async random(ctx) {
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const { type, data } = await this.fetchFirstSuccess(["https://api.miaomc.cn/image/get"])
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if (type === "blob") {
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ctx.set("Content-Type", "image/jpeg")
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ctx.body = data
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} else {
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R.ResponseJSON(R.ERROR, "Failed to fetch image")
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}
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}
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/**
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* 路由注册
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*/
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static createRoutes() {
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const controller = new AuthController()
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const router = new Router({ prefix: "/api/pics" })
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router.get("/random", controller.random.bind(controller), { auth: false })
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return router
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}
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}
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export default AuthController
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