More work on HttpServer.

src/main/java/org/dynmap/web/FileHandler.java

@@ -0,0 +1,80 @@
+package org.dynmap.web;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.HashMap;
+import java.util.Map;
+
+public abstract class FileHandler implements HttpHandler {
+    private byte[] readBuffer = new byte[40960];
+
+    private static Map<String, String> mimes = new HashMap<String, String>();
+    static {
+        mimes.put(".html", "text/html");
+        mimes.put(".htm", "text/html");
+        mimes.put(".js", "text/javascript");
+        mimes.put(".png", "image/png");
+        mimes.put(".css", "text/css");
+        mimes.put(".txt", "text/plain");
+    }
+
+    public static final String getMimeTypeFromExtension(String extension) {
+        String m = mimes.get(extension);
+        if (m != null)
+            return m;
+        return "application/octet-steam";
+    }
+    
+    protected abstract InputStream getFileInput(String path);
+    
+    protected String getExtension(String path) {
+        int dotindex = path.lastIndexOf('.');
+        if (dotindex > 0)
+            return path.substring(dotindex);
+        return null;
+    }
+    
+    protected final String formatPath(String path) {
+        int qmark = path.indexOf('?');
+        if (qmark >= 0)
+            path = path.substring(0, qmark);
+
+        if (path.startsWith("/") || path.startsWith("."))
+            return null;
+        if (path.length() == 0)
+            path = getDefaultFilename(path);
+        return path;
+    }
+    
+    protected String getDefaultFilename(String path) {
+        return path + "index.html";
+    }
+    
+    @Override
+    public void handle(String path, HttpRequest request, HttpResponse response) throws IOException {
+        path = formatPath(path);
+        InputStream fileInput = getFileInput(path);
+        if (fileInput == null) {
+            response.statusCode = 404;
+            response.statusMessage = "Not found";
+            return;
+        }
+        
+        String extension = getExtension(path);
+
+        response.fields.put("Content-Type", getMimeTypeFromExtension(extension));
+        response.fields.put("Connection", "close");
+        OutputStream out = response.getBody();
+        try {
+            int readBytes;
+            while ((readBytes = fileInput.read(readBuffer)) > 0) {
+                out.write(readBuffer, 0, readBytes);
+            }
+        } catch (IOException e) {
+            fileInput.close();
+            throw e;
+        }
+        fileInput.close();
+    }
+}