--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/goodjava/webserver/handlers/FileHandler.java	Tue Sep 17 01:35:01 2019 -0400
@@ -0,0 +1,51 @@
+package goodjava.webserver.handlers;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.Writer;
+import java.io.OutputStreamWriter;
+import java.io.IOException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import goodjava.webserver.Handler;
+import goodjava.webserver.Request;
+import goodjava.webserver.Response;
+import goodjava.webserver.ResponseOutputStream;
+
+
+public class FileHandler implements Handler {
+	final File dir;
+
+	public FileHandler() {
+		this(".");
+	}
+
+	public FileHandler(String pathname) {
+		this(new File(pathname));
+	}
+
+	public FileHandler(File dir) {
+		if( !dir.isDirectory() )
+			throw new RuntimeException("must be a directory");
+		this.dir = dir;
+	}
+
+	File file(Request request) {
+		return new File(dir,request.path);
+	}
+
+	public Response handle(Request request) {
+		try {
+			File file = file(request);
+			if( file.isFile() ) {
+				Response response = new Response();
+				response.body = new Response.Body( file.length(), new FileInputStream(file) );
+				return response;
+			}
+			return null;
+		} catch(IOException e) {
+			throw new RuntimeException(e);
+		}
+	}
+}