X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=routes%2Fall.js;h=691662f12145900668ed7a1343177fc6cebda305;hb=e6dcb115eab52abefa1d54a65af546cf5a0153e9;hp=3e6dd001df9b2771d2c78633f4fed2b3faec058b;hpb=15c1295af871a5f416b0e5b43127512c8095497a;p=vchess.git

diff --git a/routes/all.js b/routes/all.js
index 3e6dd001..691662f1 100644
--- a/routes/all.js
+++ b/routes/all.js
@@ -1,31 +1,117 @@
-var express = require('express');
-var router = express.Router();
-var createError = require('http-errors');
+let express = require('express');
+let router = express.Router();
+const createError = require('http-errors');
+const sqlite3 = require('sqlite3');//.verbose();
+const db = new sqlite3.Database('db/vchess.sqlite');
+const sanitizeHtml = require('sanitize-html');
 
-const Variants = require("../variants");
+const supportedLang = ["fr","en"];
+function selectLanguage(req, res)
+{
+	// If preferred language already set:
+	if (!!req.cookies["lang"])
+		return req.cookies["lang"];
+
+	// Else: search and set it
+	const langString = req.headers["accept-language"];
+	let langArray = langString
+		.replace(/;q=[0-9.]+/g, "") //priority
+		.replace(/-[A-Z]+/g, "") //region (skipped for now...)
+		.split(",") //may have some duplicates, but removal is too costly
+	let bestLang = "en"; //default: English
+	for (let lang of langArray)
+	{
+		if (supportedLang.includes(lang))
+		{
+			bestLang = lang;
+			break;
+		}
+	}
+	// Cookie expires in 183 days (expressed in milliseconds)
+	res.cookie('lang', bestLang, { maxAge: 183*24*3600*1000 });
+	return bestLang;
+}
 
 // Home
 router.get('/', function(req, res, next) {
-  res.render('index', {
-		title: 'club',
-		variantArray: Variants, //JSON.stringify(Variants)
+	db.serialize(function() {
+		db.all("SELECT * FROM Variants", (err,variants) => {
+			if (!!err)
+				return next(err);
+			res.render('index', {
+				title: 'club',
+				variantArray: variants,
+				lang: selectLanguage(req, res),
+				languages: supportedLang,
+			});
+		});
 	});
 });
 
 // Variant
 router.get("/:vname([a-zA-Z0-9]+)", (req,res,next) => {
 	const vname = req.params["vname"];
-	if (!Variants.some(v => { return (v.name == vname); }))
-		return next(createError(404));
-	res.render('variant', {
-		title: vname + ' Variant',
-		variant: vname,
+	db.serialize(function() {
+		db.all("SELECT * FROM Variants WHERE name='" + vname + "'", (err,variant) => {
+			if (!!err)
+				return next(err);
+			if (!variant || variant.length==0)
+				return next(createError(404));
+			// TODO (later...) get only n=100(?) most recent problems
+			db.all("SELECT * FROM Problems WHERE variant='" + vname + "'",
+				(err2,problems) => {
+					if (!!err2)
+						return next(err2);
+					res.render('variant', {
+						title: vname + ' Variant',
+						variant: vname,
+						problemArray: problems,
+						lang: selectLanguage(req, res),
+						languages: supportedLang,
+					});
+				}
+			);
+		});
 	});
 });
 
 // Load a rules page (AJAX)
 router.get("/rules/:variant([a-zA-Z0-9]+)", (req,res) => {
-  res.render("rules/" + req.params["variant"]);
+	if (!req.xhr)
+		return res.json({errmsg: "Unauthorized access"});
+	const lang = selectLanguage(req, res);
+	res.render("rules/" + req.params["variant"] + "/" + lang);
+});
+
+// Fetch 10 previous or next problems (AJAX)
+router.get("/problems/:variant([a-zA-Z0-9]+)", (req,res) => {
+	if (!req.xhr)
+		return res.json({errmsg: "Unauthorized access"});
+	// TODO: next or previous: in params + timedate (of current oldest or newest)
+	db.serialize(function() {
+		//TODO
+	});
+});
+
+// Upload a problem (AJAX)
+router.post("/problems/:variant([a-zA-Z0-9]+)", (req,res) => {
+	if (!req.xhr)
+		return res.json({errmsg: "Unauthorized access"});
+	const vname = req.params["variant"];
+	const timestamp = Date.now();
+	// Sanitize them
+	const fen = req.body["fen"];
+	if (!fen.match(/^[a-zA-Z0-9, /-]*$/))
+		return res.json({errmsg: "Bad characters in FEN string"});
+	const instructions = sanitizeHtml(req.body["instructions"]);
+	const solution = sanitizeHtml(req.body["solution"]);
+	db.serialize(function() {
+		let stmt = db.prepare("INSERT INTO Problems " +
+			"(added,variant,fen,instructions,solution) VALUES (?,?,?,?,?)");
+		stmt.run(timestamp, vname, fen, instructions, solution);
+		stmt.finalize();
+	});
+  res.json({});
 });
 
 module.exports = router;