Implement using exfiltrated metadata (5ab9f823) · Commits · Fachschaft / Portal

portal/static/js/components/pages/Fachschaftssitzung.mjs

+20 −19

Original line number	Diff line number	Diff line
		@@ -2,7 +2,7 @@ import { Base } from "./Base.mjs"
		import { Agenda } from "../pieces/Agenda.mjs"
		import { getKey } from "../../account.mjs"
		import { ButtonAndTextLink } from "../pieces/ButtonAndTextLink.mjs"
		import { getLatestProtocolDate } from "../../gitlab.mjs"
		import { getLatestProtocolMetadata } from "../../gitlab.mjs"

		const items = {
		all: null,
		@@ -29,7 +29,13 @@ const items = {
		},
		}

		let protocolDate = null
		const latestProtocol = {
		meta: null,
		async fetch() {
		this.meta = await getLatestProtocolMetadata()
		m.redraw()
		},
		}

		export const Fachschaftssitzung = {
		oncreate() {
		@@ -37,7 +43,7 @@ export const Fachschaftssitzung = {
		},
		async oninit() {
		items.fetch()
		protocolDate = await getLatestProtocolDate()
		latestProtocol.fetch()
		},
		view() {
		return m(Base, [
		@@ -49,9 +55,7 @@ export const Fachschaftssitzung = {
		m(
		"p",
		m(ButtonAndTextLink, {
		href:
		protocolDate &&
		`https://gitlab.cl.uni-heidelberg.de/-/ide/project/fachschaft/protokolle/edit/master/-/${protocolDate.slice(0, 4)}/${protocolDate}.md`,
		href: latestProtocol.meta?.editLink,
		icon: "fa-solid fa-file-pen",
		name: "Aktuelles Protokoll bearbeiten",
		}),
		@@ -59,19 +63,16 @@ export const Fachschaftssitzung = {
		m(
		"p",
		m(ButtonAndTextLink, {
		href:
		protocolDate &&
		`https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/${protocolDate}.pdf?job=convert-to-pdf`,
		href: latestProtocol.meta?.downloadLink,
		icon: "fa-regular fa-file-pdf",
		name: "Protokoll als PDF herunterladen",
		}),
		),
		latestProtocol.meta?.containsResolution &&
		m(
		"p",
		m(ButtonAndTextLink, {
		href:
		protocolDate &&
		`https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/${protocolDate}_nur_Beschlüsse.pdf?job=convert-to-pdf`,
		href: latestProtocol.meta?.resolutionDownloadLink,
		icon: "fa-solid fa-gavel",
		name: "Beschlüsse als PDF herunterladen",
		}),

portal/static/js/gitlab.mjs

+51 −18

Original line number	Diff line number	Diff line
		@@ -39,39 +39,72 @@
		* the check will always fail.
		*
		* @param {String} imageUrl A url to an image file (likely hosted on some other origin)
		* @returns The <img> object for further processing, or null if the browser cannot access it.
		*/
		async function canAccess(imageUrl) {
		async function access(imageUrl) {
		try {
		await new Promise((resolve, reject) => {
		return await new Promise((resolve, reject) => {
		const img = document.createElement("img")
		img.addEventListener("load", resolve)
		img.addEventListener("load", resolve(img))
		img.addEventListener("error", reject)
		img.src = imageUrl
		})
		return true
		} catch {
		return false
		return null
		}
		}

		export async function isLoggedIn() {}
		function toIsoString(year, month, day) {
		return `${year.toString().padStart(4, "0")}-${month.toString().padStart(2, "0")}-${day.toString().padStart(2, "0")}`
		}

		/**
		* @returns if the browser session has access to the protocols repo on GitLab
		* Return an object with metadata about the latest protocol, or null, if the metadata cannot be accessed
		* (e.g., because the user is not logged in to GitLab, is logged in but has no access to the repo, or an error occurred in the pipeline).
		*
		* An example metadata object would be:
		* {
		* year: 2024,
		* month: 6,
		* day: 19,
		* dateIso: "2024-06-19",
		* containsResolution: true,
		* editLink: "https://gitlab.cl.uni-heidelberg.de/-/ide/project/fachschaft/protokolle/edit/master/-/2024/2024-06-19.md",
		* downloadLink: "https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/2024-06-19.pdf?job=convert-to-pdf",
		* resolutionDownloadLink: "https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/2024-06-19_nur_Beschlüsse.pdf?job=convert-to-pdf"
		* }
		*/
		export async function canAccessProtocols() {
		return await canAccess(
		export async function getLatestProtocolMetadata() {
		const img = await access(
		"https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/prtcl.svg?job=create-protocol-info-svg",
		)

		if (!img) {
		return null
		}

		/**
		* @returns the date of the latest protocol, e.g. "2024-06-19"
		*/
		export async function getLatestProtocolDate() {
		// TODO Actually fetch the information from GitLab somehow
		const now = new Date()
		const today = now.toISOString().split("T")[0]
		const year = img.width
		const month = Math.floor(img.height / 100)
		const dayAndMaybeOffset = img.height - 100 * month
		const containsResolution = dayAndMaybeOffset >= 43
		const day = containsResolution ? dayAndMaybeOffset - 42 : dayAndMaybeOffset

		const dateIso = toIsoString(year, month, day)

		return today
		const editLink = `https://gitlab.cl.uni-heidelberg.de/-/ide/project/fachschaft/protokolle/edit/master/-/${year}/${dateIso}.md`
		const downloadLink = `https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/${dateIso}.pdf?job=convert-to-pdf`
		const resolutionDownloadLink = containsResolution
		? `https://gitlab.cl.uni-heidelberg.de/api/v4/projects/1193/jobs/artifacts/master/raw/pdfs/${dateIso}_nur_Beschlüsse.pdf?job=convert-to-pdf`
		: null

		return {
		dateIso,
		year,
		month,
		day,
		containsResolution,
		editLink,
		downloadLink,
		resolutionDownloadLink,
		}
		}