Upload web code

src/web/pug-sync.js

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+// @ts-check
+
+const assert = require("assert/strict")
+const fs = require("fs")
+const {join} = require("path")
+const h3 = require("h3")
+const {defineEventHandler, defaultContentType, setResponseStatus, useSession, getQuery} = h3
+const {compileFile} = require("@cloudrac3r/pug")
+
+const {as} = require("../passthrough")
+const {reg} = require("../matrix/read-registration")
+
+// Pug
+
+let globals = {}
+
+/** @type {Map<string, (event: import("h3").H3Event, locals: Record<string, any>) => Promise<string>>} */
+const pugCache = new Map()
+
+function addGlobals(obj) {
+	Object.assign(globals, obj)
+}
+
+/**
+ * @param {import("h3").H3Event} event
+ * @param {string} filename
+ * @param {Record<string, any>} locals
+ */
+function render(event, filename, locals) {
+	const path = join(__dirname, "pug", filename)
+
+	function compile() {
+		try {
+			const template = compileFile(path, {})
+			pugCache.set(path, async (event, locals) => {
+				defaultContentType(event, "text/html; charset=utf-8")
+				const session = await useSession(event, {password: reg.as_token})
+				return template(Object.assign({},
+					getQuery(event), // Query parameters can be easily accessed on the top level but don't allow them to overwrite anything
+					globals, // Globals
+					locals, // Explicit locals overwrite globals in case we need to DI something
+					{session} // Session is always session because it has to be trusted
+				))
+			})
+		} catch (e) {
+			pugCache.set(path, async (event) => {
+				setResponseStatus(event, 500, "Internal Template Error")
+				defaultContentType(event, "text/plain")
+				return e.toString()
+			})
+		}
+	}
+
+	if (!pugCache.has(path)) {
+		compile()
+		fs.watch(path, {persistent: false}, compile)
+		fs.watch(join(__dirname, "pug", "includes"), {persistent: false}, compile)
+	}
+
+	const cb = pugCache.get(path)
+	assert(cb)
+	return cb(event, locals)
+}
+
+/**
+ * @param {import("h3").Router} router
+ * @param {string} url
+ * @param {string} filename
+ */
+function createRoute(router, url, filename) {
+	router.get(url, defineEventHandler(async event => {
+		return render(event, filename, {})
+	}))
+}
+
+module.exports.addGlobals = addGlobals
+module.exports.render = render
+module.exports.createRoute = createRoute