123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523 |
- /*
- * Copyright 2011 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 static org.eclipse.jgit.lib.Constants.DOT_GIT_EXT;
-
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.net.InetAddress;
- import java.text.MessageFormat;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Collection;
- import java.util.Date;
- import java.util.HashMap;
- import java.util.HashSet;
- import java.util.List;
- import java.util.Map;
- import java.util.Properties;
- import java.util.Set;
- import java.util.concurrent.TimeUnit;
-
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.lib.StoredConfig;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.eclipse.jgit.transport.CredentialsProvider;
- import org.eclipse.jgit.transport.UsernamePasswordCredentialsProvider;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
-
- import com.gitblit.Constants.AccessPermission;
- import com.gitblit.Constants.FederationPullStatus;
- import com.gitblit.Constants.FederationStrategy;
- import com.gitblit.GitBlitException.ForbiddenException;
- import com.gitblit.models.FederationModel;
- import com.gitblit.models.RefModel;
- import com.gitblit.models.RepositoryModel;
- import com.gitblit.models.TeamModel;
- import com.gitblit.models.UserModel;
- import com.gitblit.utils.ArrayUtils;
- import com.gitblit.utils.FederationUtils;
- import com.gitblit.utils.FileUtils;
- import com.gitblit.utils.JGitUtils;
- import com.gitblit.utils.JGitUtils.CloneResult;
- import com.gitblit.utils.StringUtils;
- import com.gitblit.utils.TimeUtils;
-
- /**
- * FederationPullExecutor pulls repository updates and, optionally, user
- * accounts and server settings from registered Gitblit instances.
- */
- public class FederationPullExecutor implements Runnable {
-
- private final Logger logger = LoggerFactory.getLogger(FederationPullExecutor.class);
-
- private final List<FederationModel> registrations;
-
- private final boolean isDaemon;
-
- /**
- * Constructor for specifying a single federation registration. This
- * constructor is used to schedule the next pull execution.
- *
- * @param registration
- */
- private FederationPullExecutor(FederationModel registration) {
- this(Arrays.asList(registration), true);
- }
-
- /**
- * Constructor to specify a group of federation registrations. This is
- * normally used at startup to pull and then schedule the next update based
- * on each registrations frequency setting.
- *
- * @param registrations
- * @param isDaemon
- * if true, registrations are rescheduled in perpetuity. if
- * false, the federation pull operation is executed once.
- */
- public FederationPullExecutor(List<FederationModel> registrations, boolean isDaemon) {
- this.registrations = registrations;
- this.isDaemon = isDaemon;
- }
-
- /**
- * Run method for this pull executor.
- */
- @Override
- public void run() {
- for (FederationModel registration : registrations) {
- FederationPullStatus was = registration.getLowestStatus();
- try {
- Date now = new Date(System.currentTimeMillis());
- pull(registration);
- sendStatusAcknowledgment(registration);
- registration.lastPull = now;
- FederationPullStatus is = registration.getLowestStatus();
- if (is.ordinal() < was.ordinal()) {
- // the status for this registration has downgraded
- logger.warn("Federation pull status of {0} is now {1}", registration.name,
- is.name());
- if (registration.notifyOnError) {
- String message = "Federation pull of " + registration.name + " @ "
- + registration.url + " is now at " + is.name();
- GitBlit.self()
- .sendMailToAdministrators(
- "Pull Status of " + registration.name + " is " + is.name(),
- message);
- }
- }
- } catch (Throwable t) {
- logger.error(MessageFormat.format(
- "Failed to pull from federated gitblit ({0} @ {1})", registration.name,
- registration.url), t);
- } finally {
- if (isDaemon) {
- schedule(registration);
- }
- }
- }
- }
-
- /**
- * Mirrors a repository and, optionally, the server's users, and/or
- * configuration settings from a origin Gitblit instance.
- *
- * @param registration
- * @throws Exception
- */
- private void pull(FederationModel registration) throws Exception {
- Map<String, RepositoryModel> repositories = FederationUtils.getRepositories(registration,
- true);
- String registrationFolder = registration.folder.toLowerCase().trim();
- // confirm valid characters in server alias
- Character c = StringUtils.findInvalidCharacter(registrationFolder);
- if (c != null) {
- logger.error(MessageFormat
- .format("Illegal character ''{0}'' in folder name ''{1}'' of federation registration {2}!",
- c, registrationFolder, registration.name));
- return;
- }
- File repositoriesFolder = new File(GitBlit.getString(Keys.git.repositoriesFolder, "git"));
- File registrationFolderFile = new File(repositoriesFolder, registrationFolder);
- registrationFolderFile.mkdirs();
-
- // Clone/Pull the repository
- for (Map.Entry<String, RepositoryModel> entry : repositories.entrySet()) {
- String cloneUrl = entry.getKey();
- RepositoryModel repository = entry.getValue();
- if (!repository.hasCommits) {
- logger.warn(MessageFormat.format(
- "Skipping federated repository {0} from {1} @ {2}. Repository is EMPTY.",
- repository.name, registration.name, registration.url));
- registration.updateStatus(repository, FederationPullStatus.SKIPPED);
- continue;
- }
-
- // Determine local repository name
- String repositoryName;
- if (StringUtils.isEmpty(registrationFolder)) {
- repositoryName = repository.name;
- } else {
- repositoryName = registrationFolder + "/" + repository.name;
- }
-
- if (registration.bare) {
- // bare repository, ensure .git suffix
- if (!repositoryName.toLowerCase().endsWith(DOT_GIT_EXT)) {
- repositoryName += DOT_GIT_EXT;
- }
- } else {
- // normal repository, strip .git suffix
- if (repositoryName.toLowerCase().endsWith(DOT_GIT_EXT)) {
- repositoryName = repositoryName.substring(0,
- repositoryName.indexOf(DOT_GIT_EXT));
- }
- }
-
- // confirm that the origin of any pre-existing repository matches
- // the clone url
- String fetchHead = null;
- Repository existingRepository = GitBlit.self().getRepository(repositoryName);
-
- if (existingRepository == null && GitBlit.self().isCollectingGarbage(repositoryName)) {
- logger.warn(MessageFormat.format("Skipping local repository {0}, busy collecting garbage", repositoryName));
- continue;
- }
-
- if (existingRepository != null) {
- StoredConfig config = existingRepository.getConfig();
- config.load();
- String origin = config.getString("remote", "origin", "url");
- RevCommit commit = JGitUtils.getCommit(existingRepository,
- org.eclipse.jgit.lib.Constants.FETCH_HEAD);
- if (commit != null) {
- fetchHead = commit.getName();
- }
- existingRepository.close();
- if (!origin.startsWith(registration.url)) {
- logger.warn(MessageFormat
- .format("Skipping federated repository {0} from {1} @ {2}. Origin does not match, consider EXCLUDING.",
- repository.name, registration.name, registration.url));
- registration.updateStatus(repository, FederationPullStatus.SKIPPED);
- continue;
- }
- }
-
- // clone/pull this repository
- CredentialsProvider credentials = new UsernamePasswordCredentialsProvider(
- Constants.FEDERATION_USER, registration.token);
- logger.info(MessageFormat.format("Pulling federated repository {0} from {1} @ {2}",
- repository.name, registration.name, registration.url));
-
- CloneResult result = JGitUtils.cloneRepository(registrationFolderFile, repository.name,
- cloneUrl, registration.bare, credentials);
- Repository r = GitBlit.self().getRepository(repositoryName);
- RepositoryModel rm = GitBlit.self().getRepositoryModel(repositoryName);
- repository.isFrozen = registration.mirror;
- if (result.createdRepository) {
- // default local settings
- repository.federationStrategy = FederationStrategy.EXCLUDE;
- repository.isFrozen = registration.mirror;
- repository.showRemoteBranches = !registration.mirror;
- logger.info(MessageFormat.format(" cloning {0}", repository.name));
- registration.updateStatus(repository, FederationPullStatus.MIRRORED);
- } else {
- // fetch and update
- boolean fetched = false;
- RevCommit commit = JGitUtils.getCommit(r, org.eclipse.jgit.lib.Constants.FETCH_HEAD);
- String newFetchHead = commit.getName();
- fetched = fetchHead == null || !fetchHead.equals(newFetchHead);
-
- if (registration.mirror) {
- // mirror
- if (fetched) {
- // update local branches to match the remote tracking branches
- for (RefModel ref : JGitUtils.getRemoteBranches(r, false, -1)) {
- if (ref.displayName.startsWith("origin/")) {
- String branch = org.eclipse.jgit.lib.Constants.R_HEADS
- + ref.displayName.substring(ref.displayName.indexOf('/') + 1);
- String hash = ref.getReferencedObjectId().getName();
-
- JGitUtils.setBranchRef(r, branch, hash);
- logger.info(MessageFormat.format(" resetting {0} of {1} to {2}", branch,
- repository.name, hash));
- }
- }
-
- String newHead;
- if (StringUtils.isEmpty(repository.HEAD)) {
- newHead = newFetchHead;
- } else {
- newHead = repository.HEAD;
- }
- JGitUtils.setHEADtoRef(r, newHead);
- logger.info(MessageFormat.format(" resetting HEAD of {0} to {1}",
- repository.name, newHead));
- registration.updateStatus(repository, FederationPullStatus.MIRRORED);
- } else {
- // indicate no commits pulled
- registration.updateStatus(repository, FederationPullStatus.NOCHANGE);
- }
- } else {
- // non-mirror
- if (fetched) {
- // indicate commits pulled to origin/master
- registration.updateStatus(repository, FederationPullStatus.PULLED);
- } else {
- // indicate no commits pulled
- registration.updateStatus(repository, FederationPullStatus.NOCHANGE);
- }
- }
-
- // preserve local settings
- repository.isFrozen = rm.isFrozen;
- repository.federationStrategy = rm.federationStrategy;
-
- // merge federation sets
- Set<String> federationSets = new HashSet<String>();
- if (rm.federationSets != null) {
- federationSets.addAll(rm.federationSets);
- }
- if (repository.federationSets != null) {
- federationSets.addAll(repository.federationSets);
- }
- repository.federationSets = new ArrayList<String>(federationSets);
-
- // merge indexed branches
- Set<String> indexedBranches = new HashSet<String>();
- if (rm.indexedBranches != null) {
- indexedBranches.addAll(rm.indexedBranches);
- }
- if (repository.indexedBranches != null) {
- indexedBranches.addAll(repository.indexedBranches);
- }
- repository.indexedBranches = new ArrayList<String>(indexedBranches);
-
- }
- // only repositories that are actually _cloned_ from the origin
- // Gitblit repository are marked as federated. If the origin
- // is from somewhere else, these repositories are not considered
- // "federated" repositories.
- repository.isFederated = cloneUrl.startsWith(registration.url);
-
- GitBlit.self().updateConfiguration(r, repository);
- r.close();
- }
-
- IUserService userService = null;
-
- try {
- // Pull USERS
- // TeamModels are automatically pulled because they are contained
- // within the UserModel. The UserService creates unknown teams
- // and updates existing teams.
- Collection<UserModel> users = FederationUtils.getUsers(registration);
- if (users != null && users.size() > 0) {
- File realmFile = new File(registrationFolderFile, registration.name + "_users.conf");
- realmFile.delete();
- userService = new ConfigUserService(realmFile);
- for (UserModel user : users) {
- userService.updateUserModel(user.username, user);
-
- // merge the origin permissions and origin accounts into
- // the user accounts of this Gitblit instance
- if (registration.mergeAccounts) {
- // reparent all repository permissions if the local
- // repositories are stored within subfolders
- if (!StringUtils.isEmpty(registrationFolder)) {
- if (user.permissions != null) {
- // pulling from >= 1.2 version
- Map<String, AccessPermission> copy = new HashMap<String, AccessPermission>(user.permissions);
- user.permissions.clear();
- for (Map.Entry<String, AccessPermission> entry : copy.entrySet()) {
- user.setRepositoryPermission(registrationFolder + "/" + entry.getKey(), entry.getValue());
- }
- } else {
- // pulling from <= 1.1 version
- List<String> permissions = new ArrayList<String>(user.repositories);
- user.repositories.clear();
- for (String permission : permissions) {
- user.addRepositoryPermission(registrationFolder + "/" + permission);
- }
- }
- }
-
- // insert new user or update local user
- UserModel localUser = GitBlit.self().getUserModel(user.username);
- if (localUser == null) {
- // create new local user
- GitBlit.self().updateUserModel(user.username, user, true);
- } else {
- // update repository permissions of local user
- if (user.permissions != null) {
- // pulling from >= 1.2 version
- Map<String, AccessPermission> copy = new HashMap<String, AccessPermission>(user.permissions);
- for (Map.Entry<String, AccessPermission> entry : copy.entrySet()) {
- localUser.setRepositoryPermission(entry.getKey(), entry.getValue());
- }
- } else {
- // pulling from <= 1.1 version
- for (String repository : user.repositories) {
- localUser.addRepositoryPermission(repository);
- }
- }
- localUser.password = user.password;
- localUser.canAdmin = user.canAdmin;
- GitBlit.self().updateUserModel(localUser.username, localUser, false);
- }
-
- for (String teamname : GitBlit.self().getAllTeamnames()) {
- TeamModel team = GitBlit.self().getTeamModel(teamname);
- if (user.isTeamMember(teamname) && !team.hasUser(user.username)) {
- // new team member
- team.addUser(user.username);
- GitBlit.self().updateTeamModel(teamname, team, false);
- } else if (!user.isTeamMember(teamname) && team.hasUser(user.username)) {
- // remove team member
- team.removeUser(user.username);
- GitBlit.self().updateTeamModel(teamname, team, false);
- }
-
- // update team repositories
- TeamModel remoteTeam = user.getTeam(teamname);
- if (remoteTeam != null) {
- if (remoteTeam.permissions != null) {
- // pulling from >= 1.2
- for (Map.Entry<String, AccessPermission> entry : remoteTeam.permissions.entrySet()){
- team.setRepositoryPermission(entry.getKey(), entry.getValue());
- }
- GitBlit.self().updateTeamModel(teamname, team, false);
- } else if(!ArrayUtils.isEmpty(remoteTeam.repositories)) {
- // pulling from <= 1.1
- team.addRepositoryPermissions(remoteTeam.repositories);
- GitBlit.self().updateTeamModel(teamname, team, false);
- }
- }
- }
- }
- }
- }
- } catch (ForbiddenException e) {
- // ignore forbidden exceptions
- } catch (IOException e) {
- logger.warn(MessageFormat.format(
- "Failed to retrieve USERS from federated gitblit ({0} @ {1})",
- registration.name, registration.url), e);
- }
-
- try {
- // Pull TEAMS
- // We explicitly pull these even though they are embedded in
- // UserModels because it is possible to use teams to specify
- // mailing lists or push scripts without specifying users.
- if (userService != null) {
- Collection<TeamModel> teams = FederationUtils.getTeams(registration);
- if (teams != null && teams.size() > 0) {
- for (TeamModel team : teams) {
- userService.updateTeamModel(team);
- }
- }
- }
- } catch (ForbiddenException e) {
- // ignore forbidden exceptions
- } catch (IOException e) {
- logger.warn(MessageFormat.format(
- "Failed to retrieve TEAMS from federated gitblit ({0} @ {1})",
- registration.name, registration.url), e);
- }
-
- try {
- // Pull SETTINGS
- Map<String, String> settings = FederationUtils.getSettings(registration);
- if (settings != null && settings.size() > 0) {
- Properties properties = new Properties();
- properties.putAll(settings);
- FileOutputStream os = new FileOutputStream(new File(registrationFolderFile,
- registration.name + "_" + Constants.PROPERTIES_FILE));
- properties.store(os, null);
- os.close();
- }
- } catch (ForbiddenException e) {
- // ignore forbidden exceptions
- } catch (IOException e) {
- logger.warn(MessageFormat.format(
- "Failed to retrieve SETTINGS from federated gitblit ({0} @ {1})",
- registration.name, registration.url), e);
- }
-
- try {
- // Pull SCRIPTS
- Map<String, String> scripts = FederationUtils.getScripts(registration);
- if (scripts != null && scripts.size() > 0) {
- for (Map.Entry<String, String> script : scripts.entrySet()) {
- String scriptName = script.getKey();
- if (scriptName.endsWith(".groovy")) {
- scriptName = scriptName.substring(0, scriptName.indexOf(".groovy"));
- }
- File file = new File(registrationFolderFile, registration.name + "_"
- + scriptName + ".groovy");
- FileUtils.writeContent(file, script.getValue());
- }
- }
- } catch (ForbiddenException e) {
- // ignore forbidden exceptions
- } catch (IOException e) {
- logger.warn(MessageFormat.format(
- "Failed to retrieve SCRIPTS from federated gitblit ({0} @ {1})",
- registration.name, registration.url), e);
- }
- }
-
- /**
- * Sends a status acknowledgment to the origin Gitblit instance. This
- * includes the results of the federated pull.
- *
- * @param registration
- * @throws Exception
- */
- private void sendStatusAcknowledgment(FederationModel registration) throws Exception {
- if (!registration.sendStatus) {
- // skip status acknowledgment
- return;
- }
- InetAddress addr = InetAddress.getLocalHost();
- String federationName = GitBlit.getString(Keys.federation.name, null);
- if (StringUtils.isEmpty(federationName)) {
- federationName = addr.getHostName();
- }
- FederationUtils.acknowledgeStatus(addr.getHostAddress(), registration);
- logger.info(MessageFormat.format("Pull status sent to {0}", registration.url));
- }
-
- /**
- * Schedules the next check of the federated Gitblit instance.
- *
- * @param registration
- */
- private void schedule(FederationModel registration) {
- // schedule the next pull
- int mins = TimeUtils.convertFrequencyToMinutes(registration.frequency);
- registration.nextPull = new Date(System.currentTimeMillis() + (mins * 60 * 1000L));
- GitBlit.self().executor()
- .schedule(new FederationPullExecutor(registration), mins, TimeUnit.MINUTES);
- logger.info(MessageFormat.format(
- "Next pull of {0} @ {1} scheduled for {2,date,yyyy-MM-dd HH:mm}",
- registration.name, registration.url, registration.nextPull));
- }
- }
|