Improvements

model/middleware/KirbeStatic.js

@@ -0,0 +1,43 @@
+const { join, extname }                                  = require('path');
+const { createReadStream, readFileSync, readFile, stat } = require('fs');
+
+const mimes = JSON.parse(readFileSync(join(__dirname, 'mimes.json')));
+
+module.exports = (baseDir, indexFile) => {
+  if (!baseDir) throw new Error('The argument "baseDir" is required for the extension "kirbe:static"');
+  
+  indexFile = typeof indexFile === 'string' ? indexFile : 'index.html';
+  return(req, res, next) => {
+    if (req.method !== 'GET') { next(); return; }
+
+    let requestedPath = req.parsedUrl.pathname.replace(/\/.\.\//g, '');
+    let requestedExt  = extname(requestedPath);
+    
+    const filePath = join(baseDir, requestedPath);
+
+    stat(filePath, (err, stats) => {
+      if (err) { next(); return; }
+
+      if (stats.isFile()) {
+        stats.mtime.setMilliseconds(0);
+	      if (stats.mtime <= new Date(req.headers['if-modified-since'])) res.status(304).end();
+      	else createReadStream(filePath).pipe(res.status(200).coreRes);
+      } else {
+        if (req.parsedUrl.pathname.charAt(req.parsedUrl.pathname.length -1 ) !== '/') return res.status(302).header({'Location': `${req.parsedUrl.pathname}/`}).end();
+      
+      requestedPath = join(filePath, indexFile);
+	    requestedExt  = extname(requestedPath);
+
+    readFile(requestedPath, (err, data) => {
+		  if (err) next();
+		  else {
+		   res.body(data).status(200).header({
+		      'Content-Type': (mimes.hasOwnProperty(requestedExt) ? mimes[requestedExt] : 'application/octet-stream'),
+		      'Last-Modified': stats.mtime.toString()
+		   }).end();
+		  }
+	  });
+   }
+  });
+ };
+};