From f66e89662c091e082bd1d2feb6ac91513ccff273 Mon Sep 17 00:00:00 2001
From: Rafael Cavazin <rafaelcavazin@gmail.com>
Date: Sun, 21 Jul 2013 09:59:00 -0400
Subject: [PATCH] Merge branch 'master' of https://github.com/gitblit/gitblit

---
 src/main/java/com/gitblit/LogoServlet.java |   96 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 96 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/gitblit/LogoServlet.java b/src/main/java/com/gitblit/LogoServlet.java
new file mode 100644
index 0000000..823e464
--- /dev/null
+++ b/src/main/java/com/gitblit/LogoServlet.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2013 gitblit.com.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gitblit;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Handles requests for logo.png
+ * 
+ * @author James Moger
+ * 
+ */
+public class LogoServlet extends HttpServlet {
+	
+	private static final long serialVersionUID = 1L;
+	
+	private static final long lastModified = System.currentTimeMillis();
+
+	public LogoServlet() {
+		super();
+	}
+	
+	@Override
+	protected long getLastModified(HttpServletRequest req) {
+		File file = GitBlit.getFileOrFolder(Keys.web.headerLogo, "${baseFolder}/logo.png");
+		if (file.exists()) {
+			return Math.max(lastModified, file.lastModified());
+		} else {
+			return lastModified;
+		}
+	}
+	
+	@Override
+	protected void doGet(HttpServletRequest request, HttpServletResponse response)
+			throws ServletException, IOException {
+		InputStream is = null;
+		try {
+			String contentType = null;
+			File file = GitBlit.getFileOrFolder(Keys.web.headerLogo, "${baseFolder}/logo.png");
+			if (file.exists()) {
+				// custom logo
+				ServletContext context = request.getSession().getServletContext();
+				contentType = context.getMimeType(file.getName());
+				response.setContentLength((int) file.length());
+				response.setDateHeader("Last-Modified", Math.max(lastModified, file.lastModified()));
+				is = new FileInputStream(file);
+			} else {
+				// default logo
+				response.setDateHeader("Last-Modified", lastModified);
+				is = getClass().getResourceAsStream("/logo.png");
+			}			
+			if (contentType == null) {
+				contentType = "image/png";
+			}
+			response.setContentType(contentType);
+			response.setHeader("Cache-Control", "public, max-age=3600, must-revalidate");
+			OutputStream os = response.getOutputStream();
+			byte[] buf = new byte[4096];
+			int bytesRead = is.read(buf);
+			while (bytesRead != -1) {
+				os.write(buf, 0, bytesRead);
+				bytesRead = is.read(buf);
+			}
+			os.flush();
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			if(is != null) {
+				is.close();
+			}
+		}
+	}
+}

--
Gitblit v1.9.1