1 files changed, 55 insertions(+), 12 deletions(-)

M scrape.js

@@ 1,35 1,78 @@
 const axios = require("axios");
 const cheerio = require("cheerio");
+const fs = require("fs");
+const https = require("https");
+const path = require("path");
 
 // Ensure healthy input
+console.log("[INFO] Ensuring healthy input...")
 if (process.argv.length !== 3) {
-	console.error("Too many arguments");
+	console.error("[ERROR] Too many arguments");
 	process.exit(1);
 }
 if (!process.argv[2].startsWith("https://store.line.me/stickershop/product/")) {
-	console.error("Not a Line stickerpack (afaik)");
+	console.error("[ERROR] Not a Line stickerpack (afaik)");
 	process.exit(1);
 }
+console.log("[INFO] Input appears healthy");
 
 // Fetch HTML for sticker sheet
 const url = process.argv[2];
+console.log("[INFO] Fetching sticker pack from " + url);
 axios.get(url).then(res => {
 	// Prepare Cheerio
 	const $ = cheerio.load(res.data);
 	$.html();
+	console.log("[INFO] Parsing HTML");
 
 	// Itemize and append styles to an array
-	const len = $('.mdCMN09Ul.FnStickerList').children('li').length
+	const len = $('.mdCMN09Ul.FnStickerList').children('li').length;
 	console.log("Preparing " + len + " stickers...");
 	let raw = [];
-	const l = $('.mdCMN09Ul.FnStickerList').children('li');
-	console.log($(l)[0].attribs['data-preview']);
+	const l = $('.mdCMN09Ul.FnStickerList li');
 
-	let i = 0;
-	for (i=0;i++;i<len) {
-		const attr = $(l)[i].attribs['data-preview'];
-		console.log(attr);
-		raw.push(attr);
-	}
-	console.log(raw);
+	$(l).each((i ,elm) => {
+		console.log("[INFO] Adding sticker " + i + " to temporary DB")
+		raw[i] = $(l).get(i).attribs['data-preview'];
+	})
+	console.log("[INFO] Added " + raw.length + " stickers to database of " + len + " available.");
+
+	// Prepare new folder for sticker pack
+	console.log("[INFO] Preparing new folder for sticker pack...");
+	const packId = url.replace("https://store.line.me/stickershop/product/", "");
+	const dir = path.resolve(process.cwd(), packId)
+
+	// Create sticker directory
+	fs.mkdir(dir, (e) => {
+		if (e) throw e;
+		console.log("[INFO] Created folder for sticker pack " + packId);
+	});
+
+	// Start downloading stickers
+	raw.forEach((v, i) => {
+		const obj = JSON.parse(raw[i]);
+		const stickerUrl = obj.staticUrl;
+		const stickerId = obj.id;
+		https.get(stickerUrl, (res) => {
+			// Fetch file extension for sticker (it varies)
+			let extension;
+			const contentType = res.headers['content-type'];
+			if (contentType === "image/png") {
+				extension = "png"
+			} else if (contentType === "image/jpeg") {
+				extension = "jpg"
+			} else {
+				console.error("[ERROR] Unexpected content-type of \"" + contentType + "\"");
+			}
+			
+			// Pipe data to file
+			const path = `${dir}/${stickerId}.${extension}`
+			const str = fs.createWriteStream(path);
+			res.pipe(str);
+			str.on('finish', () => {
+				str.close();
+				console.log("[INFO] Downloaded sticker " + stickerId)
+			})
+		});
+	});
 });=
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