| commit | author | age | ||
| 8c9a20 | 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 | ||
| 18 | import java.text.MessageFormat; | |
| 19 | ||
| 20 | import com.gitblit.Constants.AccessRestrictionType; | |
| 21 | import com.gitblit.models.RepositoryModel; | |
| 22 | import com.gitblit.models.UserModel; | |
| 23 | import com.gitblit.utils.StringUtils; | |
| 24 | ||
| 892570 | 25 | /** |
| JM | 26 | * The GitFilter is an AccessRestrictionFilter which ensures that Git client |
| 27 | * requests for push, clone, or view restricted repositories are authenticated | |
| 28 | * and authorized. | |
| 29 | * | |
| 30 | * @author James Moger | |
| 31 | * | |
| 32 | */ | |
| 8c9a20 | 33 | public class GitFilter extends AccessRestrictionFilter { |
| JM | 34 | |
| 35 | protected final String gitReceivePack = "/git-receive-pack"; | |
| 36 | ||
| 37 | protected final String gitUploadPack = "/git-upload-pack"; | |
| 38 | ||
| 39 | protected final String[] suffixes = { gitReceivePack, gitUploadPack, "/info/refs", "/HEAD", | |
| 40 | "/objects" }; | |
| 41 | ||
| 892570 | 42 | /** |
| JM | 43 | * Extract the repository name from the url. |
| 44 | * | |
| 45 | * @param url | |
| 46 | * @return repository name | |
| 47 | */ | |
| 8c9a20 | 48 | @Override |
| JM | 49 | protected String extractRepositoryName(String url) { |
| 50 | String repository = url; | |
| 892570 | 51 | // get the repository name from the url by finding a known url suffix |
| 8c9a20 | 52 | for (String urlSuffix : suffixes) { |
| JM | 53 | if (repository.indexOf(urlSuffix) > -1) { |
| 54 | repository = repository.substring(0, repository.indexOf(urlSuffix)); | |
| 55 | } | |
| 56 | } | |
| 57 | return repository; | |
| 58 | } | |
| 59 | ||
| 892570 | 60 | /** |
| JM | 61 | * Analyze the url and returns the action of the request. Return values are |
| 62 | * either "/git-receive-pack" or "/git-upload-pack". | |
| 63 | * | |
| 831469 | 64 | * @param serverUrl |
| 892570 | 65 | * @return action of the request |
| JM | 66 | */ |
| 8c9a20 | 67 | @Override |
| 892570 | 68 | protected String getUrlRequestAction(String suffix) { |
| 8c9a20 | 69 | if (!StringUtils.isEmpty(suffix)) { |
| JM | 70 | if (suffix.startsWith(gitReceivePack)) { |
| 71 | return gitReceivePack; | |
| 72 | } else if (suffix.startsWith(gitUploadPack)) { | |
| 73 | return gitUploadPack; | |
| 74 | } else if (suffix.contains("?service=git-receive-pack")) { | |
| 75 | return gitReceivePack; | |
| 76 | } else if (suffix.contains("?service=git-upload-pack")) { | |
| 77 | return gitUploadPack; | |
| d40adc | 78 | } else { |
| JM | 79 | return gitUploadPack; |
| 8c9a20 | 80 | } |
| JM | 81 | } |
| 82 | return null; | |
| 83 | } | |
| b74031 | 84 | |
| JM | 85 | /** |
| 86 | * Determine if the repository can receive pushes. | |
| 87 | * | |
| 88 | * @param repository | |
| 89 | * @param action | |
| 90 | * @return true if the action may be performed | |
| 91 | */ | |
| 92 | @Override | |
| 93 | protected boolean isActionAllowed(RepositoryModel repository, String action) { | |
| 94 | if (action.equals(gitReceivePack)) { | |
| 95 | // Push request | |
| 96 | if (!repository.isBare) { | |
| 97 | logger.warn("Gitblit does not allow pushes to repositories with a working copy"); | |
| 98 | return false; | |
| 99 | } | |
| 100 | } | |
| 101 | return true; | |
| 102 | } | |
| 8c9a20 | 103 | |
| 892570 | 104 | /** |
| JM | 105 | * Determine if the repository requires authentication. |
| 106 | * | |
| 107 | * @param repository | |
| 108 | * @return true if authentication required | |
| 109 | */ | |
| 8c9a20 | 110 | @Override |
| JM | 111 | protected boolean requiresAuthentication(RepositoryModel repository) { |
| 112 | return repository.accessRestriction.atLeast(AccessRestrictionType.PUSH); | |
| 113 | } | |
| 114 | ||
| 892570 | 115 | /** |
| JM | 116 | * Determine if the user can access the repository and perform the specified |
| 117 | * action. | |
| 118 | * | |
| 119 | * @param repository | |
| 120 | * @param user | |
| 121 | * @param action | |
| 122 | * @return true if user may execute the action on the repository | |
| 123 | */ | |
| 8c9a20 | 124 | @Override |
| 892570 | 125 | protected boolean canAccess(RepositoryModel repository, UserModel user, String action) { |
| 5450d0 | 126 | if (!GitBlit.getBoolean(Keys.git.enableGitServlet, true)) { |
| JM | 127 | // Git Servlet disabled |
| 128 | return false; | |
| b74031 | 129 | } |
| JM | 130 | boolean readOnly = repository.isFrozen; |
| 831469 | 131 | if (readOnly || repository.accessRestriction.atLeast(AccessRestrictionType.PUSH)) { |
| efe8ec | 132 | boolean authorizedUser = user.canAccessRepository(repository); |
| 892570 | 133 | if (action.equals(gitReceivePack)) { |
| 8c9a20 | 134 | // Push request |
| 831469 | 135 | if (!readOnly && authorizedUser) { |
| 8c9a20 | 136 | // clone-restricted or push-authorized |
| JM | 137 | return true; |
| 138 | } else { | |
| 139 | // user is unauthorized to push to this repository | |
| 140 | logger.warn(MessageFormat.format("user {0} is not authorized to push to {1}", | |
| 141 | user.username, repository)); | |
| 142 | return false; | |
| 143 | } | |
| 892570 | 144 | } else if (action.equals(gitUploadPack)) { |
| 8c9a20 | 145 | // Clone request |
| JM | 146 | boolean cloneRestricted = repository.accessRestriction |
| 147 | .atLeast(AccessRestrictionType.CLONE); | |
| 148 | if (!cloneRestricted || (cloneRestricted && authorizedUser)) { | |
| 149 | // push-restricted or clone-authorized | |
| 150 | return true; | |
| 151 | } else { | |
| 152 | // user is unauthorized to clone this repository | |
| 153 | logger.warn(MessageFormat.format("user {0} is not authorized to clone {1}", | |
| 154 | user.username, repository)); | |
| 155 | return false; | |
| 156 | } | |
| 157 | } | |
| 158 | } | |
| 159 | return true; | |
| 160 | } | |
| 161 | } | |
