138 lines
4.9 KiB
JavaScript
138 lines
4.9 KiB
JavaScript
import { hasProtocol, joinURL, withoutTrailingSlash } from "ufo";
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import { parse } from "devalue";
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import { getCurrentInstance, onServerPrefetch, reactive } from "vue";
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import { useNuxtApp, useRuntimeConfig } from "../nuxt.js";
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import { useHead } from "./head.js";
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import { useRoute } from "./router.js";
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import { getAppManifest, getRouteRules } from "./manifest.js";
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import { appId, appManifest, multiApp, payloadExtraction, renderJsonPayloads } from "#build/nuxt.config.mjs";
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export async function loadPayload(url, opts = {}) {
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if (import.meta.server || !payloadExtraction) {
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return null;
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}
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const shouldLoadPayload = await isPrerendered(url);
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if (!shouldLoadPayload) {
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return null;
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}
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const payloadURL = await _getPayloadURL(url, opts);
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return await _importPayload(payloadURL) || null;
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}
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let linkRelType;
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function detectLinkRelType() {
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if (import.meta.server) {
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return "preload";
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}
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if (linkRelType) {
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return linkRelType;
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}
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const relList = document.createElement("link").relList;
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linkRelType = relList && relList.supports && relList.supports("prefetch") ? "prefetch" : "preload";
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return linkRelType;
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}
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export function preloadPayload(url, opts = {}) {
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const nuxtApp = useNuxtApp();
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const promise = _getPayloadURL(url, opts).then((payloadURL) => {
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const link = renderJsonPayloads ? { rel: detectLinkRelType(), as: "fetch", crossorigin: "anonymous", href: payloadURL } : { rel: "modulepreload", crossorigin: "", href: payloadURL };
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if (import.meta.server) {
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nuxtApp.runWithContext(() => useHead({ link: [link] }));
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} else {
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const linkEl = document.createElement("link");
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for (const key of Object.keys(link)) {
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linkEl[key === "crossorigin" ? "crossOrigin" : key] = link[key];
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}
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document.head.appendChild(linkEl);
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return new Promise((resolve, reject) => {
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linkEl.addEventListener("load", () => resolve());
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linkEl.addEventListener("error", () => reject());
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});
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}
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});
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if (import.meta.server) {
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onServerPrefetch(() => promise);
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}
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return promise;
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}
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const filename = renderJsonPayloads ? "_payload.json" : "_payload.js";
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async function _getPayloadURL(url, opts = {}) {
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const u = new URL(url, "http://localhost");
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if (u.host !== "localhost" || hasProtocol(u.pathname, { acceptRelative: true })) {
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throw new Error("Payload URL must not include hostname: " + url);
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}
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const config = useRuntimeConfig();
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const hash = opts.hash || (opts.fresh ? Date.now() : config.app.buildId);
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const cdnURL = config.app.cdnURL;
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const baseOrCdnURL = cdnURL && await isPrerendered(url) ? cdnURL : config.app.baseURL;
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return joinURL(baseOrCdnURL, u.pathname, filename + (hash ? `?${hash}` : ""));
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}
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async function _importPayload(payloadURL) {
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if (import.meta.server || !payloadExtraction) {
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return null;
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}
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const payloadPromise = renderJsonPayloads ? fetch(payloadURL, { cache: "force-cache" }).then((res) => res.text().then(parsePayload)) : import(
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/* webpackIgnore: true */
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/* @vite-ignore */
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payloadURL
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).then((r) => r.default || r);
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try {
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return await payloadPromise;
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} catch (err) {
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console.warn("[nuxt] Cannot load payload ", payloadURL, err);
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}
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return null;
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}
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export async function isPrerendered(url = useRoute().path) {
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const nuxtApp = useNuxtApp();
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if (!appManifest) {
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return !!nuxtApp.payload.prerenderedAt;
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}
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url = withoutTrailingSlash(url);
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const manifest = await getAppManifest();
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if (manifest.prerendered.includes(url)) {
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return true;
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}
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return nuxtApp.runWithContext(async () => {
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const rules = await getRouteRules({ path: url });
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return !!rules.prerender && !rules.redirect;
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});
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}
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let payloadCache = null;
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export async function getNuxtClientPayload() {
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if (import.meta.server) {
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return null;
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}
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if (payloadCache) {
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return payloadCache;
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}
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const el = multiApp ? document.querySelector(`[data-nuxt-data="${appId}"]`) : document.getElementById("__NUXT_DATA__");
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if (!el) {
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return {};
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}
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const inlineData = await parsePayload(el.textContent || "");
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const externalData = el.dataset.src ? await _importPayload(el.dataset.src) : void 0;
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payloadCache = {
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...inlineData,
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...externalData,
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...multiApp ? window.__NUXT__?.[appId] : window.__NUXT__
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};
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if (payloadCache.config?.public) {
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payloadCache.config.public = reactive(payloadCache.config.public);
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}
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return payloadCache;
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}
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export async function parsePayload(payload) {
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return await parse(payload, useNuxtApp()._payloadRevivers);
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}
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export function definePayloadReducer(name, reduce) {
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if (import.meta.server) {
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useNuxtApp().ssrContext._payloadReducers[name] = reduce;
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}
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}
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export function definePayloadReviver(name, revive) {
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if (import.meta.dev && getCurrentInstance()) {
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console.warn("[nuxt] [definePayloadReviver] This function must be called in a Nuxt plugin that is `unshift`ed to the beginning of the Nuxt plugins array.");
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}
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if (import.meta.client) {
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useNuxtApp()._payloadRevivers[name] = revive;
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}
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}
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