RSS

src/lib/structures/TimelineImage.js

@@ -1,9 +1,23 @@
+const config = require("../../../config")
+const {proxyImage} = require("../utils/proxyurl")
+const {compile} = require("pug")
+
+const rssDescriptionTemplate = compile(`
+img(alt=alt src=src)
+p(style='white-space: pre-line')= caption
+`)
+
 class GraphImage {
 	/**
 	 * @param {import("../types").GraphImage} data
 	 */
 	constructor(data) {
 		this.data = data
+		this.data.edge_media_to_caption.edges.forEach(edge => edge.node.text = edge.node.text.replace(/\u2063/g, "")) // I don't know why U+2063 INVISIBLE SEPARATOR is in here, but it is, and it causes rendering issues with certain fonts.
+	}
+
+	getProxy(url) {
+		return proxyImage(url)
 	}
 
 	/**
@@ -32,10 +46,34 @@ class GraphImage {
 		else return null
 	}
 
+	getIntroduction() {
+		const caption = this.getCaption()
+		if (caption) return caption.split("\n")[0].split(". ")[0] // try to get first meaningful line or sentence
+		else return null
+	}
+
 	getAlt() {
 		// For some reason, pages 2+ don't contain a11y data. Instagram web client falls back to image caption.
 		return this.data.accessibility_caption || this.getCaption() || "No image description available."
 	}
+
+	getFeedData() {
+		return {
+			title: this.getIntroduction() || "No caption provided",
+			description: rssDescriptionTemplate({src: this.data.display_url, alt: this.getAlt(), caption: this.getCaption()}),
+			author: this.data.owner.username,
+			url: `${config.website_origin}/p/${this.data.shortcode}`,
+			guid: `${config.website_origin}/p/${this.data.shortcode}`,
+			date: new Date(this.data.taken_at_timestamp*1000)
+			/*
+				Readers should display the description as HTML rather than using the media enclosure.
+				enclosure: {
+					url: this.data.display_url,
+					type: "image/jpeg" //TODO: can instagram have PNGs? everything is JPEG according to https://medium.com/@autolike.it/how-to-avoid-low-res-thumbnails-on-instagram-android-problem-bc24f0ed1c7d
+				}
+			*/
+		}
+	}
 }
 
 module.exports = GraphImage