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159 lines
4.6 KiB
JavaScript
159 lines
4.6 KiB
JavaScript
// TODO: add query string functionality to cache
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const { ssrValidatePath } = require("../config")
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const { log } = require("../lib/utils")
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const { ssrRequest } = require("../lib/ssr-server.js")
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;(function () {
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/** @type {HookResponse} */
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let response = null
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const request = context.request()
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let url = request.query("url")
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const noCache = request.query("noCache")
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// add sentry trace id to head
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const trace_id = context.debug.sentryTraceId()
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function addSentryTrace(content) {
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return content.replace("</head>", '<meta name="sentry-trace" content="' + trace_id + '" /></head>')
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}
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context.response.header("sentry-trace", trace_id)
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if (url) {
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// comment will be printed to html later
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let comment = ""
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/** @type {Date} */ // @ts-ignore
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context.ssrCacheValidUntil = null
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url = url.split("?")[0]
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comment += "url: " + url
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if (url && url.length > 1) {
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url = url.replace(/\/$/, "")
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}
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if (url == "/noindex" || !url) {
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url = "/" // see .htaccess
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}
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// check if url is in cache
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/** @type {Ssr[]} */ // @ts-ignore
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const cache =
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!noCache &&
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context.db.find("ssr", {
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filter: {
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path: url,
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},
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})
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if (cache && cache.length) {
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// use cache
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context.response.header("X-SSR-Cache", "true")
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throw {
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status: 200,
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log: false,
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html: addSentryTrace(cache[0].content),
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}
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}
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// validate url
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let status = 200
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let pNorender = false
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let pNotfound = false
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const pR = ssrValidatePath(url)
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if (pR < 0) {
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pNotfound = true
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} else if (!pR) {
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pNorender = true
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}
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let head = ""
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let html = ""
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let error = ""
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comment += ", path: " + url
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let cacheIt = false
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if (pNorender) {
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html = "<!-- NO SSR RENDERING -->"
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} else if (pNotfound) {
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status = 404
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html = "404 NOT FOUND"
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} else {
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// @ts-ignore
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context.ssrCache = {}
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// @ts-ignore
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context.ssrRequest = ssrRequest
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// try rendering, if error output plain html
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try {
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// include App.svelte and render it
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// @ts-ignore
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// console.log("####### RENDERING ", url)
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const app = require("../lib/app.server")
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const rendered = app.default.render({
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url: url,
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})
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head = rendered.head
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html = rendered.html
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// add ssrCache to head, cache is built in ssr.js/apiRequest
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head +=
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"\n\n" +
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"<script>window.__SSR_CACHE__ = " +
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// @ts-ignore
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JSON.stringify(context.ssrCache) +
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"</script>"
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// status from webapp
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// @ts-ignore
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if (context.is404) {
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// console.log("########## 404")
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status = 404
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} else {
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cacheIt = true
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}
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} catch (e) {
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// save error for later insert into html
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log(e.message)
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log(e.stack)
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error = "error: " + e.message + "\n\n" + e.stack
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}
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}
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// read html template and replace placeholders
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let tpl = context.fs.readFile("templates/spa.html")
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tpl = tpl.replace("<!--HEAD-->", head)
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tpl = tpl.replace("<!--HTML-->", html)
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tpl = tpl.replace("<!--SSR.ERROR-->", error ? "<!--" + error + "-->" : "")
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tpl = tpl.replace("<!--SSR.COMMENT-->", comment ? "<!--" + comment + "-->" : "")
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// save cache if adviced
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if (cacheIt && !noCache) {
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context.db.create("ssr", {
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// context.debug.dump("ssr", {
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path: url,
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content: tpl,
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})
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}
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// return html
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throw {
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status: status,
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log: false,
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html: addSentryTrace(tpl),
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}
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} else {
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// only admins are allowed to get without url parameter
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const auth = context.user.auth()
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if (!auth || auth.role !== 0) {
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throw {
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status: 403,
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message: "invalid auth",
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auth: auth,
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}
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}
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}
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})()
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