/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit;
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import java.io.IOException;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.eclipse.jgit.lib.Repository;
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import com.gitblit.Constants.RpcRequest;
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import com.gitblit.models.RefModel;
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import com.gitblit.models.RepositoryModel;
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import com.gitblit.models.ServerSettings;
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import com.gitblit.models.TeamModel;
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import com.gitblit.models.UserModel;
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import com.gitblit.utils.HttpUtils;
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import com.gitblit.utils.JGitUtils;
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import com.gitblit.utils.RpcUtils;
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/**
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* Handles remote procedure calls.
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*
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* @author James Moger
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*
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*/
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public class RpcServlet extends JsonServlet {
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private static final long serialVersionUID = 1L;
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public static final int PROTOCOL_VERSION = 2;
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public RpcServlet() {
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super();
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}
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/**
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* Processes an rpc request.
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*
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* @param request
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* @param response
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* @throws javax.servlet.ServletException
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* @throws java.io.IOException
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*/
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@Override
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protected void processRequest(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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RpcRequest reqType = RpcRequest.fromName(request.getParameter("req"));
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String objectName = request.getParameter("name");
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logger.info(MessageFormat.format("Rpc {0} request from {1}", reqType,
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request.getRemoteAddr()));
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UserModel user = (UserModel) request.getUserPrincipal();
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boolean allowManagement = user != null && user.canAdmin
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&& GitBlit.getBoolean(Keys.web.enableRpcManagement, false);
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boolean allowAdmin = user != null && user.canAdmin
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&& GitBlit.getBoolean(Keys.web.enableRpcAdministration, false);
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Object result = null;
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if (RpcRequest.GET_PROTOCOL.equals(reqType)) {
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// Return the protocol version
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result = PROTOCOL_VERSION;
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} else if (RpcRequest.LIST_REPOSITORIES.equals(reqType)) {
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// Determine the Gitblit clone url
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String gitblitUrl = HttpUtils.getGitblitURL(request);
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StringBuilder sb = new StringBuilder();
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sb.append(gitblitUrl);
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sb.append(Constants.GIT_PATH);
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sb.append("{0}");
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String cloneUrl = sb.toString();
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// list repositories
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List<RepositoryModel> list = GitBlit.self().getRepositoryModels(user);
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Map<String, RepositoryModel> repositories = new HashMap<String, RepositoryModel>();
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for (RepositoryModel model : list) {
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String url = MessageFormat.format(cloneUrl, model.name);
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repositories.put(url, model);
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}
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result = repositories;
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} else if (RpcRequest.LIST_BRANCHES.equals(reqType)) {
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// list all local branches in all repositories accessible to user
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Map<String, List<String>> localBranches = new HashMap<String, List<String>>();
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List<RepositoryModel> models = GitBlit.self().getRepositoryModels(user);
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for (RepositoryModel model : models) {
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if (!model.hasCommits) {
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// skip empty repository
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continue;
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}
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// get local branches
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Repository repository = GitBlit.self().getRepository(model.name);
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List<RefModel> refs = JGitUtils.getLocalBranches(repository, false, -1);
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if (model.showRemoteBranches) {
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// add remote branches if repository displays them
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refs.addAll(JGitUtils.getRemoteBranches(repository, false, -1));
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}
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if (refs.size() > 0) {
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List<String> branches = new ArrayList<String>();
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for (RefModel ref : refs) {
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branches.add(ref.getName());
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}
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localBranches.put(model.name, branches);
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}
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repository.close();
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}
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result = localBranches;
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} else if (RpcRequest.LIST_USERS.equals(reqType)) {
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// list users
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List<String> names = GitBlit.self().getAllUsernames();
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List<UserModel> users = new ArrayList<UserModel>();
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for (String name : names) {
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users.add(GitBlit.self().getUserModel(name));
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}
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result = users;
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} else if (RpcRequest.LIST_TEAMS.equals(reqType)) {
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// list teams
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List<String> names = GitBlit.self().getAllTeamnames();
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List<TeamModel> teams = new ArrayList<TeamModel>();
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for (String name : names) {
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teams.add(GitBlit.self().getTeamModel(name));
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}
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result = teams;
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} else if (RpcRequest.CREATE_REPOSITORY.equals(reqType)) {
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// create repository
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RepositoryModel model = deserialize(request, response, RepositoryModel.class);
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try {
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GitBlit.self().updateRepositoryModel(model.name, model, true);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.EDIT_REPOSITORY.equals(reqType)) {
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// edit repository
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RepositoryModel model = deserialize(request, response, RepositoryModel.class);
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// name specifies original repository name in event of rename
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String repoName = objectName;
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if (repoName == null) {
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repoName = model.name;
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}
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try {
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GitBlit.self().updateRepositoryModel(repoName, model, false);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.DELETE_REPOSITORY.equals(reqType)) {
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// delete repository
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RepositoryModel model = deserialize(request, response, RepositoryModel.class);
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GitBlit.self().deleteRepositoryModel(model);
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} else if (RpcRequest.CREATE_USER.equals(reqType)) {
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// create user
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UserModel model = deserialize(request, response, UserModel.class);
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try {
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GitBlit.self().updateUserModel(model.username, model, true);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.EDIT_USER.equals(reqType)) {
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// edit user
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UserModel model = deserialize(request, response, UserModel.class);
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// name parameter specifies original user name in event of rename
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String username = objectName;
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if (username == null) {
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username = model.username;
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}
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try {
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GitBlit.self().updateUserModel(username, model, false);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.DELETE_USER.equals(reqType)) {
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// delete user
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UserModel model = deserialize(request, response, UserModel.class);
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if (!GitBlit.self().deleteUser(model.username)) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.CREATE_TEAM.equals(reqType)) {
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// create team
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TeamModel model = deserialize(request, response, TeamModel.class);
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try {
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GitBlit.self().updateTeamModel(model.name, model, true);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.EDIT_TEAM.equals(reqType)) {
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// edit team
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TeamModel model = deserialize(request, response, TeamModel.class);
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// name parameter specifies original team name in event of rename
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String teamname = objectName;
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if (teamname == null) {
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teamname = model.name;
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}
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try {
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GitBlit.self().updateTeamModel(teamname, model, false);
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} catch (GitBlitException e) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.DELETE_TEAM.equals(reqType)) {
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// delete team
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TeamModel model = deserialize(request, response, TeamModel.class);
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if (!GitBlit.self().deleteTeam(model.name)) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.LIST_REPOSITORY_MEMBERS.equals(reqType)) {
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// get repository members
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RepositoryModel model = GitBlit.self().getRepositoryModel(objectName);
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result = GitBlit.self().getRepositoryUsers(model);
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} else if (RpcRequest.SET_REPOSITORY_MEMBERS.equals(reqType)) {
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// update repository access list
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RepositoryModel model = GitBlit.self().getRepositoryModel(objectName);
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Collection<String> names = deserialize(request, response, RpcUtils.NAMES_TYPE);
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List<String> users = new ArrayList<String>(names);
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if (!GitBlit.self().setRepositoryUsers(model, users)) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.LIST_REPOSITORY_TEAMS.equals(reqType)) {
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// get repository teams
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RepositoryModel model = GitBlit.self().getRepositoryModel(objectName);
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result = GitBlit.self().getRepositoryTeams(model);
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} else if (RpcRequest.SET_REPOSITORY_TEAMS.equals(reqType)) {
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// update repository team access list
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RepositoryModel model = GitBlit.self().getRepositoryModel(objectName);
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Collection<String> names = deserialize(request, response, RpcUtils.NAMES_TYPE);
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List<String> teams = new ArrayList<String>(names);
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if (!GitBlit.self().setRepositoryTeams(model, teams)) {
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response.setStatus(failureCode);
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}
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} else if (RpcRequest.LIST_FEDERATION_REGISTRATIONS.equals(reqType)) {
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// return the list of federation registrations
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if (allowAdmin) {
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result = GitBlit.self().getFederationRegistrations();
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} else {
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response.sendError(notAllowedCode);
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}
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} else if (RpcRequest.LIST_FEDERATION_RESULTS.equals(reqType)) {
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// return the list of federation result registrations
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if (allowAdmin && GitBlit.canFederate()) {
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result = GitBlit.self().getFederationResultRegistrations();
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} else {
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response.sendError(notAllowedCode);
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}
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} else if (RpcRequest.LIST_FEDERATION_PROPOSALS.equals(reqType)) {
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// return the list of federation proposals
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if (allowAdmin && GitBlit.canFederate()) {
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result = GitBlit.self().getPendingFederationProposals();
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} else {
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response.sendError(notAllowedCode);
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}
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} else if (RpcRequest.LIST_FEDERATION_SETS.equals(reqType)) {
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// return the list of federation sets
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if (allowAdmin && GitBlit.canFederate()) {
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String gitblitUrl = HttpUtils.getGitblitURL(request);
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result = GitBlit.self().getFederationSets(gitblitUrl);
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} else {
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response.sendError(notAllowedCode);
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}
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} else if (RpcRequest.LIST_SETTINGS.equals(reqType)) {
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// return the server's settings
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ServerSettings settings = GitBlit.self().getSettingsModel();
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if (allowAdmin) {
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// return all settings
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result = settings;
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} else {
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// anonymous users get a few settings to allow browser launching
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List<String> keys = new ArrayList<String>();
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keys.add(Keys.web.siteName);
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keys.add(Keys.web.mountParameters);
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keys.add(Keys.web.syndicationEntries);
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if (allowManagement) {
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// keys necessary for repository and/or user management
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keys.add(Keys.realm.minPasswordLength);
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keys.add(Keys.realm.passwordStorage);
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keys.add(Keys.federation.sets);
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}
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// build the settings
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ServerSettings managementSettings = new ServerSettings();
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for (String key : keys) {
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managementSettings.add(settings.get(key));
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}
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if (allowManagement) {
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settings.pushScripts = settings.pushScripts;
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}
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result = managementSettings;
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}
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} else if (RpcRequest.EDIT_SETTINGS.equals(reqType)) {
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// update settings on the server
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if (allowAdmin) {
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Map<String, String> settings = deserialize(request, response,
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RpcUtils.SETTINGS_TYPE);
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GitBlit.self().updateSettings(settings);
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} else {
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response.sendError(notAllowedCode);
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}
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} else if (RpcRequest.LIST_STATUS.equals(reqType)) {
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// return the server's status information
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if (allowAdmin) {
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result = GitBlit.self().getStatus();
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} else {
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response.sendError(notAllowedCode);
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}
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}
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// send the result of the request
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serialize(response, result);
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}
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}
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