Fix bugs and add DOT Files handling

Author: simonwep

src/express/middleware/DotFiles.java

@@ -0,0 +1,5 @@
+package express.middleware;
+
+public enum DotFiles {
+  IGNORE, DENY, ALLOW
+}

src/express/middleware/FileProvider.java

@@ -3,6 +3,7 @@
 import express.http.HttpRequest;
 import express.http.request.Request;
 import express.http.response.Response;
+import express.utils.Status;
 import express.utils.Utils;
 
 import java.io.File;
@@ -45,6 +46,17 @@ public void handle(Request req, Response res) {
 
     if (reqFile != null && reqFile.exists()) {
 
+      if (reqFile.getName().charAt(0) == '.') {
+        switch (OPTIONS.getDotFiles()) {
+          case IGNORE:
+            res.setStatus(Status._404);
+            return;
+          case DENY:
+            res.setStatus(Status._403);
+            return;
+        }
+      }
+
       if (OPTIONS.getExtensions() != null) {
         String reqEx = Utils.getExtension(reqFile);
 
@@ -57,6 +69,8 @@ public void handle(Request req, Response res) {
             break;
           }
         }
+
+        res.setStatus(Status._403);
       } else {
         finish(reqFile, req, res);
       }
@@ -114,7 +128,7 @@ private String getURIFilename(String path) {
     int s = path.lastIndexOf('/');
     int e = path.lastIndexOf('.');
 
-    if (e == -1 && s <= 1)
+    if (e == -1 && s == -1)
       return "index";
 
     if (e == -1)
@@ -123,7 +137,9 @@ private String getURIFilename(String path) {
     if (s == -1)
       s = 0;
 
-    return path.substring(s + 1, e);
+    String name = path.substring(s + 1, e);
+
+    return name.isEmpty() ? "index" : name;
   }
 
   /**

src/express/middleware/FileProviderOptions.java

@@ -4,12 +4,12 @@
 
 public class FileProviderOptions {
 
-
   private String[] extensions;
   private HttpRequest handler;
   private boolean fallBackSearching;
   private boolean lastModified;
   private long maxAge;
+  private DotFiles dotFiles;
 
   {
     // Initalize some values.
@@ -18,6 +18,7 @@ public class FileProviderOptions {
     this.fallBackSearching = false;
     this.lastModified = true;
     this.maxAge = 0;
+    this.dotFiles = DotFiles.IGNORE;
   }
 
   public FileProviderOptions() { }
@@ -120,4 +121,23 @@ public FileProviderOptions setHandler(HttpRequest handler) {
     this.handler = handler;
     return this;
   }
+
+  /**
+   * @return How Dot-files will be currently handled.
+   */
+  public DotFiles getDotFiles() {
+    return dotFiles;
+  }
+
+  /**
+   * Set how ".foo" file will be handled.
+   * Ignore: Act if these files doen't exists, response with 404
+   * Deny: Deny the file, response with 303 and do nothing.
+   * Allow: No special threadment for this files.
+   *
+   * @param dotFiles The handling type.
+   */
+  public void setDotFiles(DotFiles dotFiles) {
+    this.dotFiles = dotFiles;
+  }
 }