From fe7c01a8bd76dff240e74bb770212911e227ba59 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 03 Feb 2012 17:24:51 -0500
Subject: [PATCH] Return to Users page after add/edit team

---
 src/com/gitblit/DownloadZipServlet.java |   66 +++++++++++++++++++++++++--------
 1 files changed, 50 insertions(+), 16 deletions(-)

diff --git a/src/com/gitblit/DownloadZipServlet.java b/src/com/gitblit/DownloadZipServlet.java
index d36b94d..209272f 100644
--- a/src/com/gitblit/DownloadZipServlet.java
+++ b/src/com/gitblit/DownloadZipServlet.java
@@ -15,8 +15,12 @@
  */
 package com.gitblit;
 
+import java.io.IOException;
+import java.text.MessageFormat;
+import java.text.ParseException;
 import java.util.Date;
 
+import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletResponse;
 
@@ -25,11 +29,17 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.gitblit.Constants.AccessRestrictionType;
-import com.gitblit.models.RepositoryModel;
 import com.gitblit.utils.JGitUtils;
+import com.gitblit.utils.MarkdownUtils;
 import com.gitblit.utils.StringUtils;
 
+/**
+ * Streams out a zip file from the specified repository for any tree path at any
+ * revision.
+ * 
+ * @author James Moger
+ * 
+ */
 public class DownloadZipServlet extends HttpServlet {
 
 	private static final long serialVersionUID = 1L;
@@ -40,6 +50,15 @@
 		super();
 	}
 
+	/**
+	 * Returns an url to this servlet for the specified parameters.
+	 * 
+	 * @param baseURL
+	 * @param repository
+	 * @param objectId
+	 * @param path
+	 * @return an url
+	 */
 	public static String asLink(String baseURL, String repository, String objectId, String path) {
 		if (baseURL.length() > 0 && baseURL.charAt(baseURL.length() - 1) == '/') {
 			baseURL = baseURL.substring(0, baseURL.length() - 1);
@@ -49,6 +68,14 @@
 				+ (objectId == null ? "" : ("&h=" + objectId));
 	}
 
+	/**
+	 * Creates a zip stream from the repository of the requested data.
+	 * 
+	 * @param request
+	 * @param response
+	 * @throws javax.servlet.ServletException
+	 * @throws java.io.IOException
+	 */
 	private void processRequest(javax.servlet.http.HttpServletRequest request,
 			javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,
 			java.io.IOException {
@@ -56,8 +83,8 @@
 			logger.warn("Zip downloads are disabled");
 			response.sendError(HttpServletResponse.SC_FORBIDDEN);
 			return;
-
 		}
+
 		String repository = request.getParameter("r");
 		String basePath = request.getParameter("p");
 		String objectId = request.getParameter("h");
@@ -68,18 +95,6 @@
 				name = name.substring(name.lastIndexOf('/') + 1);
 			}
 
-			// check roles first
-			boolean authorized = request.isUserInRole(Constants.ADMIN_ROLE);
-			authorized |= request.isUserInRole(repository);
-
-			if (!authorized) {
-				RepositoryModel model = GitBlit.self().getRepositoryModel(repository);
-				if (model.accessRestriction.atLeast(AccessRestrictionType.VIEW)) {
-					logger.warn("Unauthorized access via zip servlet for " + model.name);
-					response.sendError(HttpServletResponse.SC_FORBIDDEN);
-					return;
-				}
-			}
 			if (!StringUtils.isEmpty(basePath)) {
 				name += "-" + basePath.replace('/', '_');
 			}
@@ -88,11 +103,20 @@
 			}
 
 			Repository r = GitBlit.self().getRepository(repository);
+			if (r == null) {
+				error(response, MessageFormat.format("# Error\nFailed to find repository {0}", repository));
+				return;
+			}
 			RevCommit commit = JGitUtils.getCommit(r, objectId);
+			if (commit == null) {
+				error(response, MessageFormat.format("# Error\nFailed to find commit {0}", objectId));
+				r.close();
+				return;
+			}
 			Date date = JGitUtils.getCommitDate(commit);
+
 			String contentType = "application/octet-stream";
 			response.setContentType(contentType + "; charset=" + response.getCharacterEncoding());
-			// response.setContentLength(attachment.getFileSize());
 			response.setHeader("Content-Disposition", "attachment; filename=\"" + name + ".zip"
 					+ "\"");
 			response.setDateHeader("Last-Modified", date.getTime());
@@ -106,11 +130,21 @@
 			} catch (Throwable t) {
 				logger.error("Failed to write attachment to client", t);
 			}
+
+			// close the repository
+			r.close();
 		} catch (Throwable t) {
 			logger.error("Failed to write attachment to client", t);
 		}
 	}
 
+	private void error(HttpServletResponse response, String mkd) throws ServletException,
+			IOException, ParseException {
+		String content = MarkdownUtils.transformMarkdown(mkd);
+		response.setContentType("text/html; charset=" + Constants.ENCODING);
+		response.getWriter().write(content);
+	}
+
 	@Override
 	protected void doPost(javax.servlet.http.HttpServletRequest request,
 			javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException,

--
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