Update 'README.md'

update fallback uri

README.md

@@ -0,0 +1,22 @@
+A simple no-HTML random Hatsune Miku image server. Example: https://rms.owo69.me/
+
+- Click reload to get a different one. Delete left half of URL to get to source.
+- Include pornographic results: https://rms.owo69.me/?allow_r18([=only](https://rms.owo69.me/?allow_r18=only))
+- Get different sizes (original, regular, small, or thumb_mini): https://rms.owo69.me/?size=thumb_mini
+- Auto-refresh using HTTP Refresh header: https://rms.owo69.me/?auto=3
+- kek: https://rms.owo69.me/?allow_r18&size=thumb_mini&auto=0
+- See your history: https://rms.owo69.me/log
+- Load image by id without redirect thing: https://rms.owo69.me/img/51586149
+- Load random image directly without redirect thing: https://rms.owo69.me/img/random
+- Draw Pixiv URL onto upper left corner of image: https://rms.owo69.me/img/random?drawsource&size=regular
+
+Here is an HTML site that makes use of it: https://lamp.tk/miku.html
+
+### Prerequisites
+
+- Node.js
+- GraphicsMagick for ?drawsource option
+
+### todo
+
+- Option to limit range to get more higher-ranked illustrations

index.js

@@ -2,28 +2,35 @@ var express = require("express");
 var fetch = require("node-fetch");
 var qs = require("qs");
 var serveFavicon = require("serve-favicon");
+var gm = require("gm");
 var fs = require("fs");
 
 var app = express();
 app.set("trust proxy", "127.0.0.1");
-app.listen(process.env.PORT || 39);
+app.listen(process.env.PORT || 39, process.env.ADDRESS);
 app.use(serveFavicon("ミク.png"));
 app.use((req,res,next)=>{req.rawQuery = req.url.includes('?') && req.url.substr(req.url.indexOf('?')+1);next();});
 
 var list = require("./list.json");
+var list_r18_indices = [], list_safe_indices = [];
+for (let i = 0, h = list.length; i < h; i++) if (list[i][2]) list_r18_indices.push(i); else list_safe_indices.push(i);
 var ipa_lastload_map = {};
 
 
 function getRandomId(allow_r18) {
-	var i = list[Math.floor(Math.random() * list.length)];
-	if (i[2] && !allow_r18) return getRandomId();
-	return i[0];
+	if (allow_r18?.toLowerCase() == "only") {
+		return list[list_r18_indices[Math.floor(Math.random() * list_r18_indices.length)]][0];
+	} else if (allow_r18 != null) {
+		return list[Math.floor(Math.random() * list.length)][0];
+	} else {
+		return list[list_safe_indices[Math.floor(Math.random() * list_safe_indices.length)]][0];
+	}
 };
 
 
 function getRandomUrl(req) {
 	var s = req?.params.settings ? `/${req?.params.settings}` : '';
-	var d = getRandomId(req?.query.allow_r18!=null);
+	var d = getRandomId(req?.query.allow_r18);
 	return `${s}/https://www.pixiv.net/en/artworks/${d}`;
 }
 
@@ -49,18 +56,20 @@ async function serveId(id, req, res, next) {
 		if (!url) return res.status(400).type("text").send(`size must be one of the following: ${Object.keys(pages[0].urls).join(', ')}`);
 		
 		var pxreq = await fetch(url, { headers: {"Referer": "https://www.pixiv.net"} });
-		if (pxreq.status != 200 && size == "original") {
-			res.header("X-Using-Backup", '1');
-			pxreq = await fetch(`http://hmbp.gq:39/https://www.pixiv.net/en/artworks/${id}?noredirect`);
-		}
+		//if (pxreq.status != 200 && size == "original") {
+		//	res.header("X-Using-Backup", '1');
+		//	pxreq = await fetch(`https://39.hmbp.gq/https://www.pixiv.net/en/artworks/${id}?noredirect`);
+		//}
 
-		res.status(203);
+		res.status(pxreq.status);
 		res.type(pxreq.headers.get("Content-Type"));
 		res.header("Content-Disposition", `filename=${url.split('/').pop()}`);
-		res.header("Cache-Control", "max-age=99999999999999");
 		res.header("X-Pixiv-Id", id);
 		if (req.query.auto) res.header("Refresh", `${Number(req.query.auto)}; url=${getRandomUrl(req)}`);
-		pxreq.body.pipe(res);
+		if (req.query.drawsource != null && pxreq.headers.get("Content-Type").startsWith("image")) {
+			gm(pxreq.body).drawText(2, 12, size == "thumb_mini" ? id : `https://www.pixiv.net/en/artworks/${id}`).stream().pipe(res);
+		}
+		else pxreq.body.pipe(res);
 
 		fs.appendFileSync(`logs/${req.ip.replace(/[:\/]/g, '-')}.csv`, `${new Date().toISOString()},${id}\n`);
 
@@ -96,17 +105,23 @@ app.get('/', (req, res) => {
 
 // direct random image without redirects
 app.get("/img/random", (req, res, next) => {
-	serveId(getRandomId(req.query.allow_r18!=null), req, res, next);
+	serveId(getRandomId(req.query.allow_r18), req, res, next);
 });
 
 // simple serve id without redirects
 app.get("/img/:id", (req, res, next) => {
+	res.header("Cache-Control", "max-age=99999999999999");
 	serveId(req.params.id, req, res, next);
 });
 
-// plaintext random id for scripts
+// plaintext random id(s) for scripts
 app.get("/randomid", function (req, res) {
-	res.type("text/plain").send(getRandomId(req.query.allow_r18!=null));
+	var count = Number(req.query.count) || 1;
+	count = Math.min(count, 100);
+	var ids = [];
+	for (let i = 0; i < count; i++) ids.push(getRandomId(req.query.allow_r18));
+	ids = ids.join(',');
+	res.type("text/plain").send(ids);
 });
 
 

package.json

@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "express": "^4.17.1",
+    "gm": "^1.23.1",
     "node-fetch": "^2.6.5",
     "serve-favicon": "^2.5.0"
   }