123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293 |
- /*
- * 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);
- 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 {
- is.close();
- }
- }
- }
|