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extensions/static.js

@@ -0,0 +1,47 @@
+const fs                = require( 'fs' );
+const url               = require( 'url' );
+const { join, extname } = require( 'path' );
+
+const mimes = JSON.parse( fs.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 );
+
+    fs.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 fs.createReadStream( filePath ).pipe( res.status( 200 ).coreRes );
+      } else {
+        if ( req.parsedUrl.pathname.charAt( req.parsedUrl.pathname.length -1 ) !== '/' ) {
+					res.status(302).header({ 'Location': `${req.parsedUrl.pathname}/` }).end();
+					return;
+        }
+        
+        requestedPath = join( filePath, indexFile );
+				requestedExt  = extname( requestedPath );
+
+				fs.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();
+					}
+				});
+      }
+    });
+  };
+};