From fbe265fa787e4be9cb63c6bae2ef30b9400d9afc Mon Sep 17 00:00:00 2001
From: Simon Harrer <simon.harrer@gmail.com>
Date: Thu, 18 Jul 2013 10:11:04 -0400
Subject: [PATCH] Fixes findbugs warning - dereferencing null in exception case

---
 src/main/java/com/gitblit/GitBlit.java |  168 ++++++++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 126 insertions(+), 42 deletions(-)

diff --git a/src/main/java/com/gitblit/GitBlit.java b/src/main/java/com/gitblit/GitBlit.java
index 6fd168a..35ef770 100644
--- a/src/main/java/com/gitblit/GitBlit.java
+++ b/src/main/java/com/gitblit/GitBlit.java
@@ -84,6 +84,7 @@
 
 import com.gitblit.Constants.AccessPermission;
 import com.gitblit.Constants.AccessRestrictionType;
+import com.gitblit.Constants.AccountType;
 import com.gitblit.Constants.AuthenticationType;
 import com.gitblit.Constants.AuthorizationControl;
 import com.gitblit.Constants.FederationRequest;
@@ -102,6 +103,7 @@
 import com.gitblit.models.GitClientApplication;
 import com.gitblit.models.Metric;
 import com.gitblit.models.ProjectModel;
+import com.gitblit.models.RefModel;
 import com.gitblit.models.RegistrantAccessPermission;
 import com.gitblit.models.RepositoryModel;
 import com.gitblit.models.RepositoryUrl;
@@ -120,6 +122,7 @@
 import com.gitblit.utils.FederationUtils;
 import com.gitblit.utils.HttpUtils;
 import com.gitblit.utils.JGitUtils;
+import com.gitblit.utils.JGitUtils.LastChange;
 import com.gitblit.utils.JsonUtils;
 import com.gitblit.utils.MetricUtils;
 import com.gitblit.utils.ObjectCache;
@@ -274,6 +277,15 @@
 			self().timezone = TimeZone.getTimeZone(tzid);
 		}
 		return self().timezone;
+	}
+	
+	/**
+	 * Returns the active settings.
+	 * 
+	 * @return the active settings
+	 */
+	public static IStoredSettings getSettings() {
+		return self().settings;
 	}
 	
 	/**
@@ -684,12 +696,12 @@
 	public boolean supportsCredentialChanges(UserModel user) {
 		if (user == null) {
 			return false;
-		} else if (!Constants.EXTERNAL_ACCOUNT.equals(user.password)) {
-			// credentials likely maintained by Gitblit
-			return userService.supportsCredentialChanges();
+		} else if (AccountType.LOCAL.equals(user.accountType)) {
+			// local account, we can change credentials
+			return true;
 		} else {
-			// credentials are externally maintained
-			return false;
+			// external account, ask user service
+			return userService.supportsCredentialChanges();
 		}
 	}
 
@@ -724,6 +736,18 @@
 	}
 
 	/**
+	 * Returns true if the username represents an internal account
+	 * 
+	 * @param username
+	 * @return true if the specified username represents an internal account
+	 */
+	protected boolean isInternalAccount(String username) {
+		return !StringUtils.isEmpty(username)
+				&& (username.equalsIgnoreCase(Constants.FEDERATION_USER)
+						|| username.equalsIgnoreCase(UserModel.ANONYMOUS.username));
+	}
+
+	/**
 	 * Authenticate a user based on a username and password.
 	 * 
 	 * @see IUserService.authenticate(String, char[])
@@ -748,10 +772,7 @@
 			if (usernameDecoded.equalsIgnoreCase(Constants.FEDERATION_USER)) {
 				List<String> tokens = getFederationTokens();
 				if (tokens.contains(pw)) {
-					// the federation user is an administrator
-					UserModel federationUser = new UserModel(Constants.FEDERATION_USER);
-					federationUser.canAdmin = true;
-					return federationUser;
+					return getFederationUser();
 				}
 			}
 		}
@@ -838,6 +859,7 @@
 		if (principal != null) {
 			String username = principal.getName();
 			if (!StringUtils.isEmpty(username)) {
+				boolean internalAccount = isInternalAccount(username);
 				UserModel user = getUserModel(username);
 				if (user != null) {
 					// existing user
@@ -845,7 +867,8 @@
 					logger.debug(MessageFormat.format("{0} authenticated by servlet container principal from {1}",
 							user.username, httpRequest.getRemoteAddr()));
 					return user;
-				} else if (settings.getBoolean(Keys.realm.container.autoCreateAccounts, true)) {
+				} else if (settings.getBoolean(Keys.realm.container.autoCreateAccounts, false)
+						&& !internalAccount) {
 					// auto-create user from an authenticated container principal
 					user = new UserModel(username.toLowerCase());
 					user.displayName = username;
@@ -855,7 +878,7 @@
 					logger.debug(MessageFormat.format("{0} authenticated and created by servlet container principal from {1}",
 							user.username, httpRequest.getRemoteAddr()));
 					return user;
-				} else {
+				} else if (!internalAccount) {
 					logger.warn(MessageFormat.format("Failed to find UserModel for {0}, attempted servlet container authentication from {1}",
 							principal.getName(), httpRequest.getRemoteAddr()));
 				}
@@ -1023,6 +1046,13 @@
 		}
 		String usernameDecoded = decodeUsername(username);
 		return userService.deleteUser(usernameDecoded);
+	}
+	
+	protected UserModel getFederationUser() {
+		// the federation user is an administrator
+		UserModel federationUser = new UserModel(Constants.FEDERATION_USER);
+		federationUser.canAdmin = true;
+		return federationUser;
 	}
 
 	/**
@@ -1474,7 +1504,10 @@
 		}
 		
 		// return sorted copy of cached list
-		List<String> list = new ArrayList<String>(repositoryListCache.keySet());		
+		List<String> list = new ArrayList<String>();
+		for (RepositoryModel model : repositoryListCache.values()) {
+			list.add(model.name);
+		}
 		StringUtils.sortRepositorynames(list);
 		return list;
 	}
@@ -1638,7 +1671,9 @@
 				model.hasCommits = JGitUtils.hasCommits(r);
 			}
 
-			model.lastChange = JGitUtils.getLastChange(r);
+			LastChange lc = JGitUtils.getLastChange(r);
+			model.lastChange = lc.when;
+			model.lastChangeAuthor = lc.who;
 			if (!model.skipSizeCalculation) {
 				ByteFormat byteFormat = new ByteFormat();
 				model.size = byteFormat.format(calculateSize(model));
@@ -1664,6 +1699,30 @@
 			}
 		}
 		return count;
+	}
+	
+	private void reloadProjectMarkdown(ProjectModel project) {
+		// project markdown
+		File pmkd = new File(getRepositoriesFolder(), (project.isRoot ? "" : project.name) + "/project.mkd");
+		if (pmkd.exists()) {
+			Date lm = new Date(pmkd.lastModified());
+			if (!projectMarkdownCache.hasCurrent(project.name, lm)) {
+				String mkd = com.gitblit.utils.FileUtils.readContent(pmkd,  "\n");
+				projectMarkdownCache.updateObject(project.name, lm, mkd);
+			}
+			project.projectMarkdown = projectMarkdownCache.getObject(project.name);
+		}
+		
+		// project repositories markdown
+		File rmkd = new File(getRepositoriesFolder(), (project.isRoot ? "" : project.name) + "/repositories.mkd");
+		if (rmkd.exists()) {
+			Date lm = new Date(rmkd.lastModified());
+			if (!projectRepositoriesMarkdownCache.hasCurrent(project.name, lm)) {
+				String mkd = com.gitblit.utils.FileUtils.readContent(rmkd,  "\n");
+				projectRepositoriesMarkdownCache.updateObject(project.name, lm, mkd);
+			}
+			project.repositoriesMarkdown = projectRepositoriesMarkdownCache.getObject(project.name);
+		}
 	}
 	
 	
@@ -1700,27 +1759,7 @@
 				project.title = projectConfigs.getString("project", name, "title");
 				project.description = projectConfigs.getString("project", name, "description");
 				
-				// project markdown
-				File pmkd = new File(getRepositoriesFolder(), (project.isRoot ? "" : name) + "/project.mkd");
-				if (pmkd.exists()) {
-					Date lm = new Date(pmkd.lastModified());
-					if (!projectMarkdownCache.hasCurrent(name, lm)) {
-						String mkd = com.gitblit.utils.FileUtils.readContent(pmkd,  "\n");
-						projectMarkdownCache.updateObject(name, lm, mkd);
-					}
-					project.projectMarkdown = projectMarkdownCache.getObject(name);
-				}
-				
-				// project repositories markdown
-				File rmkd = new File(getRepositoriesFolder(), (project.isRoot ? "" : name) + "/repositories.mkd");
-				if (rmkd.exists()) {
-					Date lm = new Date(rmkd.lastModified());
-					if (!projectRepositoriesMarkdownCache.hasCurrent(name, lm)) {
-						String mkd = com.gitblit.utils.FileUtils.readContent(rmkd,  "\n");
-						projectRepositoriesMarkdownCache.updateObject(name, lm, mkd);
-					}
-					project.repositoriesMarkdown = projectRepositoriesMarkdownCache.getObject(name);
-				}
+				reloadProjectMarkdown(project);
 				
 				configs.put(name.toLowerCase(), project);
 			}
@@ -1842,6 +1881,8 @@
 			// no repositories == no project
 			return null;
 		}
+		
+		reloadProjectMarkdown(project);
 		return project;
 	}
 	
@@ -1936,7 +1977,9 @@
 			model.name = repositoryName;
 		}
 		model.hasCommits = JGitUtils.hasCommits(r);
-		model.lastChange = JGitUtils.getLastChange(r);
+		LastChange lc = JGitUtils.getLastChange(r);
+		model.lastChange = lc.when;
+		model.lastChangeAuthor = lc.who;
 		model.projectPath = StringUtils.getFirstPathElement(repositoryName);
 		
 		StoredConfig config = r.getConfig();
@@ -1944,6 +1987,7 @@
 		
 		if (config != null) {
 			model.description = getConfig(config, "description", "");
+			model.originRepository = getConfig(config, "originRepository", null);
 			model.addOwners(ArrayUtils.fromString(getConfig(config, "owner", "")));
 			model.useTickets = getConfig(config, "useTickets", false);
 			model.useDocs = getConfig(config, "useDocs", false);
@@ -1999,7 +2043,7 @@
 		model.sparkleshareId = JGitUtils.getSparkleshareId(r);
 		r.close();
 		
-		if (model.origin != null && model.origin.startsWith("file://")) {
+		if (StringUtils.isEmpty(model.originRepository) && model.origin != null && model.origin.startsWith("file://")) {
 			// repository was cloned locally... perhaps as a fork
 			try {
 				File folder = new File(new URI(model.origin));
@@ -2009,6 +2053,9 @@
 					File repoFolder = new File(getRepositoriesFolder(), originRepo);
 					if (repoFolder.exists()) {
 						model.originRepository = originRepo.toLowerCase();
+						
+						// persist the fork origin
+						updateConfiguration(r, model);
 					}
 				}
 			} catch (URISyntaxException e) {
@@ -2408,6 +2455,7 @@
 							String origin = config.getString("remote", "origin", "url");
 							origin = origin.replace(repositoryName, repository.name);
 							config.setString("remote", "origin", "url", origin);
+							config.setString(Constants.CONFIG_GITBLIT, null, "originRepository", repository.name);
 							config.save();
 						} catch (Exception e) {
 							logger.error("Failed to update repository fork config for " + fork, e);
@@ -2416,11 +2464,12 @@
 					}
 				}
 				
-				// remove this repository from any origin model's fork list
+				// update this repository's origin's fork list
 				if (!StringUtils.isEmpty(repository.originRepository)) {
 					RepositoryModel origin = repositoryListCache.get(repository.originRepository);
 					if (origin != null && !ArrayUtils.isEmpty(origin.forks)) {
 						origin.forks.remove(repositoryName);
+						origin.forks.add(repository.name);
 					}
 				}
 
@@ -2469,6 +2518,7 @@
 	public void updateConfiguration(Repository r, RepositoryModel repository) {
 		StoredConfig config = r.getConfig();
 		config.setString(Constants.CONFIG_GITBLIT, null, "description", repository.description);
+		config.setString(Constants.CONFIG_GITBLIT, null, "originRepository", repository.originRepository);
 		config.setString(Constants.CONFIG_GITBLIT, null, "owner", ArrayUtils.toString(repository.owners));
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "useTickets", repository.useTickets);
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "useDocs", repository.useDocs);
@@ -2920,8 +2970,7 @@
 		String cloneUrl = sb.toString();
 
 		// Retrieve all available repositories
-		UserModel user = new UserModel(Constants.FEDERATION_USER);
-		user.canAdmin = true;
+		UserModel user = getFederationUser();
 		List<RepositoryModel> list = getRepositoryModels(user);
 
 		// create the [cloneurl, repositoryModel] map
@@ -3402,9 +3451,8 @@
 		configureJGit();
 		configureFanout();
 		configureGitDaemon();
-		
-		CommitCache.instance().setCacheDays(settings.getInteger(Keys.web.activityCacheDays, 14));
-		
+		configureCommitCache();
+
 		ContainerUtils.CVE_2007_0450.test();
 	}
 	
@@ -3514,6 +3562,42 @@
 		}
 	}
 	
+	protected void configureCommitCache() {
+		int daysToCache = settings.getInteger(Keys.web.activityCacheDays, 14);
+		if (daysToCache <= 0) {
+			logger.info("commit cache disabled");
+		} else {
+			long start = System.nanoTime();
+			long repoCount = 0;
+			long commitCount = 0;
+			logger.info(MessageFormat.format("preparing {0} day commit cache. please wait...", daysToCache));
+			CommitCache.instance().setCacheDays(daysToCache);
+			Date cutoff = CommitCache.instance().getCutoffDate();
+			for (String repositoryName : getRepositoryList()) {
+				RepositoryModel model = getRepositoryModel(repositoryName);
+				if (model.hasCommits && model.lastChange.after(cutoff)) {
+					repoCount++;
+					Repository repository = getRepository(repositoryName);
+					for (RefModel ref : JGitUtils.getLocalBranches(repository, true, -1)) {
+						if (!ref.getDate().after(cutoff)) {
+							// branch not recently updated
+							continue;
+						}
+						List<?> commits = CommitCache.instance().getCommits(repositoryName, repository, ref.getName());
+						if (commits.size() > 0) {
+							logger.info(MessageFormat.format("  cached {0} commits for {1}:{2}",
+									commits.size(), repositoryName, ref.getName()));
+							commitCount += commits.size();
+						}
+					}
+					repository.close();
+				}
+			}
+			logger.info(MessageFormat.format("built {0} day commit cache of {1} commits across {2} repositories in {3} msecs",
+					daysToCache, commitCount, repoCount, TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start)));
+		}
+	}
+	
 	protected final Logger getLogger() {
 		return logger;
 	}

--
Gitblit v1.9.1