| commit | author | age | ||
| c22722 | 1 | /* |
| JM | 2 | * Copyright 2011 gitblit.com. |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package com.gitblit; | |
| 17 | ||
| 8c9a20 | 18 | import java.text.MessageFormat; |
| c22722 | 19 | import java.util.List; |
| JM | 20 | |
| 21 | import javax.servlet.http.HttpServlet; | |
| 22 | ||
| 23 | import org.eclipse.jgit.lib.Repository; | |
| 24 | import org.eclipse.jgit.revwalk.RevCommit; | |
| 25 | import org.slf4j.Logger; | |
| 26 | import org.slf4j.LoggerFactory; | |
| 27 | ||
| 28 | import com.gitblit.models.RepositoryModel; | |
| 831469 | 29 | import com.gitblit.utils.HttpUtils; |
| c22722 | 30 | import com.gitblit.utils.JGitUtils; |
| JM | 31 | import com.gitblit.utils.StringUtils; |
| 32 | import com.gitblit.utils.SyndicationUtils; | |
| 33 | ||
| 892570 | 34 | /** |
| JM | 35 | * SyndicationServlet generates RSS 2.0 feeds and feed links. |
| 36 | * | |
| 37 | * Access to this servlet is protected by the SyndicationFilter. | |
| 38 | * | |
| 39 | * @author James Moger | |
| 40 | * | |
| 41 | */ | |
| c22722 | 42 | public class SyndicationServlet extends HttpServlet { |
| JM | 43 | |
| 44 | private static final long serialVersionUID = 1L; | |
| 45 | ||
| 46 | private transient Logger logger = LoggerFactory.getLogger(SyndicationServlet.class); | |
| 47 | ||
| 892570 | 48 | /** |
| JM | 49 | * Create a feed link for the specified repository and branch/tag/commit id. |
| 50 | * | |
| 51 | * @param baseURL | |
| 52 | * @param repository | |
| 53 | * the repository name | |
| 54 | * @param objectId | |
| 55 | * the branch, tag, or first commit for the feed | |
| 56 | * @param length | |
| 57 | * the number of commits to include in the feed | |
| 58 | * @return an RSS feed url | |
| 59 | */ | |
| c22722 | 60 | public static String asLink(String baseURL, String repository, String objectId, int length) { |
| 8c9a20 | 61 | if (baseURL.length() > 0 && baseURL.charAt(baseURL.length() - 1) == '/') { |
| c22722 | 62 | baseURL = baseURL.substring(0, baseURL.length() - 1); |
| JM | 63 | } |
| 8c9a20 | 64 | StringBuilder url = new StringBuilder(); |
| JM | 65 | url.append(baseURL); |
| 5450d0 | 66 | url.append(Constants.SYNDICATION_PATH); |
| 8c9a20 | 67 | url.append(repository); |
| JM | 68 | if (!StringUtils.isEmpty(objectId) || length > 0) { |
| 69 | StringBuilder parameters = new StringBuilder("?"); | |
| 70 | if (StringUtils.isEmpty(objectId)) { | |
| 71 | parameters.append("l="); | |
| 72 | parameters.append(length); | |
| 73 | } else { | |
| 74 | parameters.append("h="); | |
| 75 | parameters.append(objectId); | |
| 76 | if (length > 0) { | |
| 77 | parameters.append("&l="); | |
| 78 | parameters.append(length); | |
| 79 | } | |
| 80 | } | |
| 81 | url.append(parameters); | |
| 82 | } | |
| 83 | return url.toString(); | |
| 84 | } | |
| 85c2e6 | 85 | |
| 892570 | 86 | /** |
| JM | 87 | * Determines the appropriate title for a feed. |
| 88 | * | |
| 89 | * @param repository | |
| 90 | * @param objectId | |
| 91 | * @return title of the feed | |
| 92 | */ | |
| 8c9a20 | 93 | public static String getTitle(String repository, String objectId) { |
| JM | 94 | String id = objectId; |
| 95 | if (!StringUtils.isEmpty(id)) { | |
| 96 | if (id.startsWith(org.eclipse.jgit.lib.Constants.R_HEADS)) { | |
| 97 | id = id.substring(org.eclipse.jgit.lib.Constants.R_HEADS.length()); | |
| 98 | } else if (id.startsWith(org.eclipse.jgit.lib.Constants.R_REMOTES)) { | |
| 99 | id = id.substring(org.eclipse.jgit.lib.Constants.R_REMOTES.length()); | |
| 100 | } else if (id.startsWith(org.eclipse.jgit.lib.Constants.R_TAGS)) { | |
| 101 | id = id.substring(org.eclipse.jgit.lib.Constants.R_TAGS.length()); | |
| 102 | } | |
| 103 | } | |
| 104 | return MessageFormat.format("{0} ({1})", repository, id); | |
| c22722 | 105 | } |
| JM | 106 | |
| 892570 | 107 | /** |
| JM | 108 | * Generates the feed content. |
| 109 | * | |
| 110 | * @param request | |
| 111 | * @param response | |
| 112 | * @throws javax.servlet.ServletException | |
| 113 | * @throws java.io.IOException | |
| 114 | */ | |
| c22722 | 115 | private void processRequest(javax.servlet.http.HttpServletRequest request, |
| JM | 116 | javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, |
| 117 | java.io.IOException { | |
| 8c9a20 | 118 | |
| 2179fb | 119 | String servletUrl = request.getContextPath() + request.getServletPath(); |
| JM | 120 | String url = request.getRequestURI().substring(servletUrl.length()); |
| 8c9a20 | 121 | if (url.charAt(0) == '/' && url.length() > 1) { |
| JM | 122 | url = url.substring(1); |
| 123 | } | |
| 124 | String repositoryName = url; | |
| c22722 | 125 | String objectId = request.getParameter("h"); |
| JM | 126 | String l = request.getParameter("l"); |
| 127 | int length = GitBlit.getInteger(Keys.web.syndicationEntries, 25); | |
| 128 | if (StringUtils.isEmpty(objectId)) { | |
| 129 | objectId = org.eclipse.jgit.lib.Constants.HEAD; | |
| 130 | } | |
| 131 | if (!StringUtils.isEmpty(l)) { | |
| 132 | try { | |
| 133 | length = Integer.parseInt(l); | |
| 134 | } catch (NumberFormatException x) { | |
| 135 | } | |
| 136 | } | |
| 137 | ||
| 466413 | 138 | response.setContentType("application/rss+xml; charset=UTF-8"); |
| c22722 | 139 | Repository repository = GitBlit.self().getRepository(repositoryName); |
| JM | 140 | RepositoryModel model = GitBlit.self().getRepositoryModel(repositoryName); |
| 141 | List<RevCommit> commits = JGitUtils.getRevLog(repository, objectId, 0, length); | |
| 142 | try { | |
| 2179fb | 143 | SyndicationUtils.toRSS(HttpUtils.getGitblitURL(request), getTitle(model.name, objectId), model.description, |
| 8c9a20 | 144 | model.name, commits, response.getOutputStream()); |
| c22722 | 145 | } catch (Exception e) { |
| JM | 146 | logger.error("An error occurred during feed generation", e); |
| 147 | } | |
| 148 | } | |
| 149 | ||
| 150 | @Override | |
| 151 | protected void doPost(javax.servlet.http.HttpServletRequest request, | |
| 152 | javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, | |
| 153 | java.io.IOException { | |
| 154 | processRequest(request, response); | |
| 155 | } | |
| 156 | ||
| 157 | @Override | |
| 158 | protected void doGet(javax.servlet.http.HttpServletRequest request, | |
| 159 | javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, | |
| 160 | java.io.IOException { | |
| 161 | processRequest(request, response); | |
| 162 | } | |
| 163 | } | |
